JPH02212059A - Ball grinder - Google Patents

Abstract

PURPOSE:To grind a ball easily without the need for experience by operating the virtual lens shape of after working based on an input information and the measuring information fed from the shape measuring means of the lens to be worked and graphically displaying on a monitor. CONSTITUTION:A main arithmetic control circuit inputs an ophthalmo information from an input part 4 and a frame information and so on from a tracer arithmetic control circuit and operates the virtual lens shape and virtual V section of after the working based on the measurement information fed from the shape measuring means of the lens to be worked and various input information. The virtual lens shape, virtual V section and the mark instructing the V position expressing the section which are the arithmetic results, are displayed graphically on a display part 3 together with a ball type center and an optical center. Thus, the information necessary for ball grinding is concentrically taken in and the ball grinding can easily be done without the need for any experience.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a milling machine for milling a lens to fit into the frame of an eyeglass frame.

[Prior Art and its Problems] In place of the conventional manual processing by skilled craftsmen, electrical control using a microcomputer has recently been used for lens grinding.

In conventional devices of this type, individual graphic displays were sometimes displayed, but since they were only fragmentary displays, it was difficult to obtain sufficient information from such displays.

SUMMARY OF THE INVENTION An object of the present invention is to provide a beading machine that can intensively take in information necessary for one-loaf processing and display this information in an easy-to-understand manner for the worker.

[Structure of the Invention] In order to achieve the above object, the present invention provides an input means for inputting information such as optometry information and frame information in a grinding machine that grinds a lens so that it fits into the frame of an eyeglass frame. , means for measuring the shape of the lens to be processed, and means for calculating a virtual lens shape after processing based on the information input by the input means and the measurement information from the shape measuring means for the lens to be processed;
It is characterized by having means for graphically displaying the calculation results on a monitor.

In addition, the graphic display shows the virtual lens shape after processing,
It is characterized by consisting of a virtual bevel cross section and a mark indicating the position of the bevel to display the cross section.

Furthermore, the virtual lens shape is characterized in that the center of the lens shape and the optical center are also displayed.

[Example] An example of the present invention will be described in detail below based on the drawings.

(1) Figure 1 is a perspective view showing the overall configuration of a lens grinding device according to the present invention.

Reference numeral 1 denotes a base of the device, on which the various parts constituting the lens grinding device are arranged.

2 is a lens frame and template shape measuring device built in the upper part of the device.

In front of it are lined up a display section 3 that displays measurement results, calculation results, etc. in text or graphics, and an input section 4 that inputs data and gives instructions to the device.

At the front of the device is a lens shape measuring device 5 that measures the virtual edge thickness of an unprocessed lens.

Reference numeral 6 denotes a lens grinding section, in which a grindstone 60 consisting of a rough grindstone 60a for glass lenses, a rough grindstone 60b for plastics, and a bevel and manual grinding wheel 60G is rotatably attached to a rotating shaft 61. The rotating shaft 61 has a band 62 on the base 1.
is fixed.

A pulley 63 is attached to the end of the rotating shaft 61. The pulley 63 is connected via a belt 64 to a pulley 66 attached to the rotating shaft of an AC motor 65. Therefore, when the motor 65 rotates, the grindstone 60 rotates.

7 is a carriage part, and 700 is a carriage.

(2) Goyari Kansoku and U Imperial (A) Carriage Section The structure thereof will be explained based on FIGS. 1 to 3. Second
The figure is a sectional view of the carriage. Fig. 3-a is a view taken from arrow A showing the drive mechanism of the carriage, and Fig. 3-b is a sectional view taken along line BB.

A carriage shaft 702 is rotatably and slidably supported on a shaft 701 fixed to the base 1, and a carriage 700 is also rotatably supported on the shaft 702.

Timing pulleys 703a, 703b, and 703G each having the same number of teeth are fixed to the carriage shaft 702 at the left end, the right end, and between them.

Lens rotation axes 704a and 704b are coaxially and rotatably supported on the carriage 700, parallel to the shaft 701 and at an unchanging distance. The lens rotation wheel 704b is the rack 7
The rack 705 is rotatably supported by the rack 705, and can be moved in the axial direction by a pinion 707 fixed to the rotating shaft of the motor 706.
This allows the lens LE to
It can be sandwiched between b. Note that the lens rotation axes 704a, 704
Pulleys 708a each have the same number of teeth.

708b is attached, and they are connected to pulleys 703G and 703 by timing belts 709a and 709b.
It is connected to b.

An intermediate plate 710 is rotatably fixed to the left side of the carriage 700. A cam follower 711 is installed on the intermediate plate 710.
are attached, which sandwich a guide shaft 712 fixed to the base 1 in a position parallel to the shaft 701. A rack 713 is attached to the shaft 7 on the intermediate plate 710.
The pinion 715 is attached to the rotating shaft of a motor 714 for moving the carriage left and right, which is fixed to the base 1 in a position parallel to the pinion 715. These 'ERm's allow the motor 714 to move the carriage 700 in the axial direction of the shaft 701.

A drive plate 716 is fixed to the left end of the carriage 700, and a rotating shaft 717 is rotatably attached to the drive plate parallel to the shaft door 01. At the left end of the rotating shaft 717 is a pulley 7 having the same number of teeth as the pulleys 708a and 708b.
18, and the pulley 718 is connected to the pulley 703a by a timing belt 719.

A gear 720 is attached to the right end of the rotating shaft 717.
Gear 720 meshes with a gear attached to motor 721. When the motor 721 rotates, the gear 720 rotates the pulley 718, and the carriage shaft 702 rotates via the timing belt 719. This causes the pulleys 703b, 703C1, timing belts 709a, 70
9b.

Lens chuck shaft 7 via pulleys 708a and 708b
Rotate 04a and 704b.

The block 722 is fixed to the drive plate 716 so as to be coaxial with the rotating shaft 717 and rotatable, and the motor 721 is fixed to the block 722.

A shaft 723 is fixed to the intermediate plate 710 in a direction parallel to the shaft 701, and a correction block 724 is rotatably fixed to the shaft 723. round rack 7
25 is arranged parallel to the shortest line segment connecting the axes of the rotating shaft 717 and the shaft 723, and is slidable through holes made in the block 722 and the correction block 724. A stopper 726 is fixed to the round rack 725 and can only slide downward from the contact position of the correction block 724.

A sensor 727 is provided on the intermediate plate 710, and the stopper 7
26 and the correction block 724, it is possible to know the grinding state of the lens.

Rotating shaft 72 of motor 728 fixed to block 722
A binion 730 fixed to the shaft 723 is engaged with the round rack 725, and thereby the rotating shaft 717 and the shaft 723 are connected to each other.
The inter-axle distance T- can be controlled by the motor 728.

Furthermore, such a structure maintains a linear relationship between γ' and the rotation angle of the motor 728.

The distance (8-C) between the center of rotation of the grindstone B and the shaft 701 is α, the distance (A-C) between the lens chuck axis 7048.704b and the shaft 701 is β, and the lens chuck axis 7
The distance between 04a'', 704b and the center of rotation of the grinding wheel is γ, α
Let the angle between and β be θ, and the shaft 723 and the shaft 71
The inter-axis (C-D) distance of 1 is α-1, the inter-axis (C-E) distance β' between the rotating shaft 717 and the shaft 701 is β', and the angle formed by α' and β- is β-.

The positional relationship is schematically shown in FIG.

α, α', β, and β- remain unchanged, and the rotation center of the grinding wheel and the center points of the shafts 701 and 723 remain unchanged on the plane of the figure, and the lens chuck axes 704a and 70
4b and the center point of the rotating shaft 717 rotate around the shaft 7G1 while their relative positional relationship remains unchanged.

Here, if θ−θ−2 α−/α=β−/β, then
ΔABC and ΔEDC have similar shapes.

At this time, α'/α=T-/T, and γ- and γ have a linear correlation.

With this structure, the block 722 to which the motor 721 that rotates the pulley 718 that rotates around the rotating shaft 717 is fixed follows the change in CED when γ' is changed and rotates around point E. Rotate.

At this time, the rotation of the pulley 718 rotates the lens shafts 704a and 704b at a constant speed as described below.

γ′ by the motor 728 while rotating the pulley 718.
When and T are changed, the rotation angle of the pulley 718 with the line segment ED as the reference line and the rotation angle of the lens axis with the line segment AB as the reference line become equal. Also, a motor 721 and a lens shaft 704a.

There is also a linear correlation in the rotation of 704b. In other words, the distance between the grinding wheel shaft and the lens shaft changes in correlation with the rotation angle of the output shaft of the motor 728, and the lens shafts 704a and 704b are formed by line segments AB8 and Q'-line.
rotates with a linear correlation with the rotation angle of the output shaft of the motor 721.

A hook of a spring 731 is hooked to the drive plate 716, and a wire 732 is hooked to the hook on the opposite side. A rotating shaft of a motor 733 fixed to the intermediate plate 710 is equipped with a drum, on which the wire 732 can be wound. Thereby, the grinding pressure of the grindstone 60 of the lens LE can be changed.

(b) Lens frame and mold plate curved part (tracer) (a)
Structure The structure of the lens frame and template shape measuring section 2 will be explained based on FIGS. 5 and 6.

FIG. 5 is a perspective view showing a lens frame and a template shape measuring section according to this embodiment. The headquarters is built into the main body,
It is mainly composed of two parts: a frame and template holding section 2000 that holds the frame and template, and a measuring section 2100 that digitally measures the shapes of the lens frame and template of the frame. The frame and template holder 2000 is further composed of two parts, a frame holder 200OA and a template holder 2000B.

In Fig. 6-1 showing the frame holding part 200OA,
When the eyeglass frame is set in the frame holding part 2000A, the approximate geometric center point of the lens frame is set as the reference point 0R10 [
The straight line passing through these two points is defined as the reference line.

The frame holding unit 200OA has a housing 2001. The center arm 2002 is mounted on guide shafts 2003a and 2003b attached to the surface of the casing 2001 so as to be movable in layers, and the tip of the center arm 2002 has frame stampings 2004.200 at the same intervals as QR and QL.
There are 5.

Similarly, the light arm 2006 is connected to the guide shaft 200
7a and 2007b, and the left arm 2009 is 1 on the guide shafts 2010a and 2010b, respectively! A frame holder 2008 is rotatably supported at the tip of the right arm 2006, and a frame holder 2011 is rotatably supported at the tip of the left arm 2009.

Center arm 2002 has frame stamping 2004.20
05 passes through OR, 01, the light arm 2006 slides in the direction perpendicular to the reference line, and the light arm 2006 passes through the frame press 2008.
passes through OR, left arm 2009 is frame press 2
011 slides in a direction inclined approximately 30 degrees from the reference line so that it passes through the OL.

In Figure 6-2, frame stamping 2004.2005
．． 2008.2011 are two slopes that intersect each other (2012a, 2012b), (2014a, 20
14b), (2016a, 2016a), (2018a
, 2018b), and the ridge lines 2013, 2015, 2017, and 2019 created by each of the two slopes are on the same plane (measurement plane), and the frame stamping 2008.201
The rotation axis of 1 is also on this measurement plane.

In addition, the center arm 2002G: is a semicircular frame press 2020 that is slidably placed on the guide shaft 20218, 2021b attached to the center arm 2002. One end of the spring 2022 is hung on a pin 2023a planted in the center arm 2002 so as to constantly pull the pusher 2020 toward the center arm, and the other end is attached to the frame pusher 20.
It is hung on a pin 2023b implanted in 20.

FIG. 6-4 is a diagram of a part of the housing 2001 viewed from the back side.

A pulley 2024a is provided on the mold surface of the housing 2001.

2024b, 2024c, and 2024d are rotatably supported, and pulleys 2024a to 2024d have wires 2
025 is hung in the hole 2028a of the housing 2001.
, 2029a, and are fixed to a pin 2026a implanted in the center arm 2002 and a pin 2027 implanted in the light arm 2006.

Similarly, pulleys 2030a and 2
°030b, 2030c, and 2030d are rotatably supported, and a wire 2031 is hung on the pulleys 2030a to 2030d, and a hole 2028 in the housing 2001
b, 2029b, and is fixed to a pin 2026b implanted in the center arm 2002 protruding from the back surface and a pin 2032 implanted in the left arm 2009.

In addition, a center arm 2002 is provided on the back side of the housing 2001.
A constant torque spring 2033 that always pulls the drum 2 in the OR, 01 direction is rotatably supported on the back surface of the casing 2001.
034, and one end of the constant torque spring 2033 is attached to the pin 203 implanted in the center arm 2002.
It is fixed to 5.

In addition, a claw 2036 is implanted in the center arm 2002, and when the frame is not held,
It is in contact with a microswitch 2037 attached to the back surface of the casing 2001, and determines the state of frame retention.

A rim thickness measurement 12040 for measuring the thickness of the rim of the frame is incorporated into the left arm 2009.

A pulley 2 is attached to the rotating shaft 2041 of the frame press 2011.
042 is fixed and rotates together with the frame press 2011, and the frame press 20 is attached to this rotating shaft 2041.
A pulley 2043 that rotates independently of the rotation of
has been planted.

In addition, the left arm 2009 includes a hollow rotating shaft 204.
5 is rotatably supported on a shaft, and a potentiometer 2046 is attached to one end, and a pulley 2047 is attached to the other end. A wire 2049 whose both ends are fixed to each pulley is hung between the pulleys 2042 and 2047, and the potentiometer 2046 and frame presser 2011 are always linked and rotated in the same direction.

In FIG. 6-5, one end of a wire 2050 is fixed to a pulley 2043, the other end is fixed to a pulley 2048 in the middle, and the other end is attached to the left arm 200 through a spring 2051.
The shaft of the potentiometer 2046 rotates in accordance with the movement of the rim thickness measuring pin 2044.

In this example, the rim thickness is measured only at one location, but by attaching a contact that can move up and down and detect the amount of movement to the measuring stylus 2120, and bringing it into contact with the front surface of the rim when measuring the shape of the lens frame, the rim thickness can be measured at one location. The vertical position of can be detected. The rim thickness around the entire circumference of the lens frame can be measured from the data on the front surface of the rim and the data on the vertical direction of the V-groove.

In FIG. 6-6, a pressed plate 2061 with brake rubber 2062 pasted on the - side is placed on the housing 2001.
The solenoid 2064 is rotatably attached to the housing 2001 by a shaft 2063 attached to the housing 2001, and one end of the moving shaft of the solenoid 2064 is attached to the pressing plate 2061.

In addition, pressed board 20614. : One end of the spring 2065 is hung, and the other end is hung on a pin 2066 planted in the housing 2001, and the press plate 2061 is normally pulled in a direction in which the brake rubber 2062 does not come into contact with the center arm 2002. . Solenoid 2064 acts and spring 206
When pressing the pressing plate 2061 against 5, the brake rubber 20
62 comes into contact with the center arm 2002, and the center 7-
A right arm 2006 and a left arm 2009 that move in conjunction with the arm 2002 and the center arm 2002 are fixed.

Template Holding Unit The template holding unit 2000B is shown in FIG. 5 and FIG.
b, 2071c, 2071d.

The substrate 2072 is fixed to the pillars 2071a to 2071d. The lid 2073 has a shaft 2 implanted in the lid 2073.
074a and 2074b are engaged with bearings 2075a and 2075b formed on the substrate 2072, and are rotatably placed on the substrate 2072. The substrate 2072 has holes sufficient to allow the spectacle frame to be inserted into and removed from the frame holder. A transparent window 2076 is formed in the lid 2073, and a template holder 2077 is fixed to the center of the window 2076. The template holder 2077 has a pin 2078a,
2078b is implanted, engage the pins 2078a and 2078b with the holes formed in the template, and then tighten the setscrew 2.
At 079, the template is fixed to the template holder 2077.

The center of this template holder 2077 is configured to be located on the OR when the lid 2073 is closed.

Measuring part Next, the configuration of the measuring section 2100 will be explained based on FIG. 7.

Figure 7-1 is a plan view of the measuring section, and Figure 7-2 is its C-
It is a sectional view of C.

The movable base 2101 has shaft holes 2102a and 2102b.
, 2102G are formed and are slidably supported by shafts 2103a and 2103b attached to the housing 2001. In addition, a lever 210 is attached to the movable base 2101.
4 is planted, and by sliding the movable base 2101 with this lever 2104, the rotating base 2
The rotation center of 105 is the frame and template holding part 2000
Move to the OR,01 position above. Movable base 2101
A rotating base 2105 on which a boot 9-2106 is formed.
is rotatably supported. Pulley 2106 and pulse motor 2107 attached to movable base 2101
A belt 2109 is passed between the pulley 2108 attached to the rotating shaft of the pulse motor 2107, and the rotation of the pulse motor 2107 is thereby transmitted to the rotating base 2105.

On the rotating base 2105, there are four
Book rails 2110a, 2110b, 2110c, 21
10d is installed, and this (7) L/- rule 211
A measuring element part 2120 is slidably attached to 0a and 211 Ob. A shaft hole 2121 is formed in the vertical direction in the measuring element part 2120, and this shaft hole 2121
A measuring stylus shaft 2122 is inserted into.

A ball bearing 2123 is interposed between the probe shaft 2122 and the shaft hole 2121, so that the probe shaft 212
The vertical movement and rotation of 2 are made smooth. An arm 2124 is attached to the upper end of the measuring head shaft 2122, and a bevel measuring head 2125 in the shape of a solo pan bead that contacts the bevel groove of the lens frame is rotatably supported on the upper part of the arm 2124. .

A cylindrical template measuring roller 2126 that contacts the edge of the template is rotatably supported at the lower part of the arm 2124.

Then, bevel measurement completed 2125 and template measurement roller 212
The circumferential point No. 6 is configured to be positioned H on the center line of the measuring stylus axis 2122.

Below the gauge head shaft 2122, a pin 212BS is implanted in a ring 2127 rotatably attached to the gauge head shaft 2122, and movement of the pin 2128 in the rotational direction is controlled by the length formed in the gauge head part 2120. Limited by hole 2129. At the tip of the pin 2128, there is a probe section 2120.
The potentiometer 2130 detects the amount of vertical movement of the probe shaft 2122 .

A roller 2131 is rotatably supported at the lower end of the probe shaft 2122 . Also, the probe section 2120 has a tab 213.
2 have been planted.

A pin 2133 is implanted in the measuring head part 2120,
A pulley 2135 is attached to the shaft of a potentiometer 2134 attached to the rotating base 2105. Pulleys 2136a, 2 are attached to the rotating base 2105.
136b is rotatably supported, and a wire 2137 fixed to a pin 2133 is connected to pulleys 2136a, 2.
136bk:i! ) and is fixed to the pulley 2139. In this way, the amount of movement of the probe section Z120 is detected by the potentiometer 2134.

Further, a constant torque spring 2140 is attached to the rotating base 2105 to constantly pull the probe section 2120 toward the tip side of the arm 2124.
is attached to a drum 2141 that is rotatably supported by a rotating base 2105, and a constant torque spring 2140
One end is connected to a pin 2142 implanted in the probe section 2120.
is fixed to.

Rails 2110G and 2110d on the rotating base 2105
A probe drive unit 2150 is slidably attached to the top. A pin 2151 is implanted in the probe drive unit 2150, and a boot 9-2153 is attached to the rotation shaft of a motor 2152 attached to the rotation base 2105. Pulley 21548.2 on rotating base 2105
154b is rotatably supported, and a wire 2155 fixed to a pin 2151 connects to pulleys 2154a, 2.
154b and is fixed to the pulley 2153. As a result, the rotation of the motor is controlled by the probe drive unit 2150.
transmitted to.

The probe drive section 2150 is configured to move the probe section 2 pulled toward the probe drive section 2150 by a constant torque spring 2140.
120, and by moving the probe drive section 2150, the probe section 2120 can be moved to a predetermined position.

The probe drive unit 2150 also includes a probe shaft 21 at one end.
The shaft 2156 has an arm 2157 that abuts a roller 2131 that is rotatably supported at the lower end of the shaft 2156, and an arm 2158 that rotatably supports a roller 2159 at the other end.

The torsional spring 2161
One end is hung on the arm 2157, and the other end is fixed to the probe drive section 2150. When the probe drive section 2150 moves, the roller 2159 moves up and down along the guide plate 2160.

The shaft 2156 rotates due to the up and down of the roller 2159, and the shaft 21
An arm 2157 fixed to the shaft 2156 also rotates around the shaft 2156, and moves the stator shaft 2122 up and down.A shaft 2163 is rotatably attached to the rotating base 2105, and a movable guide plate 2161 is fixed to the shaft 2163 One end of the sliding shaft of the solenoid 2164 attached to the rotation base 2105 is connected to the movable guide plate 216.
1 is installed. One end of the spring 2165 is hung on the rotation base 2105, and the other end is hung on the movable guide plate 2161, and the roller 2159 and the movable guide plate 2161 are normally attached to each other.
The guide portion 2162 of 61 is pulled to a position where it does not come into contact. The solenoid 2164 acts to move the movable guide plate 2161
When you pull up the guide part 21 of the movable guide plate 2161
62 moves to a position parallel to the fixed guide plate 2160,
The rollers 2159 come into contact with the guide part 2162, and the guide part 2
162.

(b) Operation Next, the operation of the above-mentioned lens frame and template shape measuring device 2 will be explained based on FIGS. 6 to 10.

L/>7. First, the operation when measuring eyeglass frames will be explained.

Select which side of the lens frame of the eyeglass frame 500 is to be measured, and move the measuring unit 2100 to the measuring side using a lever 2104 fixed to the movable head 2101.

Next, pull the frame pusher 2020 toward you to sufficiently widen the space between it and the center arm 2002. Frame press 2004.2005 slope 2 for the front part of the eyeglass frame
012a, 2012b, 2014a, and 2014b, the frame press 2020 is returned and brought into contact with the center portion of the eyeglass frame. Then center arm 200
2 while pushing down the rim thickness measuring pin 2044 with the rim part of the glasses frame.
08, 2011 slope 2016a, 2016b, 201
8a and 2018b with the left and right (7) rim parts.

In this example, frame stamping 2004°2005
．． 2008.2011 are linked, constant torque spring 2
033 in the direction toward the OR and OL, and the frame press 2020 is pulled in the direction of the center arm by the spring 2022, so the frame press 2004.
2005, 2008, 2011, and 2020, the lens frame is held by forces in three directions toward the approximate geometric center of the lens frame, and the center position of the frame is OR by the frame pusher 220.

It is held at the midpoint of OL. In addition, frame pressing 200
8. 2011 is the ridgeline of the four frame stampings 2013.2
015. Since it rotates within the plane created by 2017 and 2019, the center of the bevel groove on the lens frame is the frame press 2004.
, 2005, 2008° 211 is always held within the measurement plane.

In FIG. 8-1, the rim part of the lens frame presses down the rim thickness measuring pin 2044, and when the bevel groove is parallel to the measurement surface, the slopes 2018a, 2018 of the frame press 2011
The amount of movement of the rim thickness measuring pin 2044 can be detected by a potentiometer 2046 with reference to the ridge line 2019 formed by the rim 18b.

In Fig. 8-2, when the bevel groove is inclined at a certain angle with respect to the measurement surface, the frame press 2011 is inclined along the rim part, and the potentiometer 2 is
Since 046 is also tilted, the rim thickness can always be measured using the ridge line 2019 as a reference.

The rim thickness data thus obtained is compared with the edge thickness and used to determine the optimum position so that the rim of the frame and the front refractive surface of the lens are in appropriate positions.

When the trace switch on the operation panel is pressed with the frame set as described above, the solenoid 2064 is activated and the center arm 2002 and light arm 200 are activated.
6. Fix the left arm 2009.

In FIG. 9, the roller 2159 of the probe drive unit 2150
is at the reference position MO, the pulse motor 2107 is rotated by a predetermined angle, and the rotating base 2105 is rotated to a position where the moving direction of the measuring element drive section 2150 and the moving direction of the frame presser 2008 or 2011 match.

Next, when the guide portion 2162 of the movable guide plate 2161 is moved to a predetermined position by the solenoid 2164 and the measuring element drive portion 2150 is moved in the direction of the frame presser 2008 or 2011, the roller 2159 moves toward the fixed guide plate 2161.
The probe shaft 2122 moves from the guide section 2160a of the arm 2 to the guide section 2162b of the movable guide plate 2161.
157, and the bevel measuring tip 2125 is kept at the height of the measuring surface.

When the measuring element drive unit 2150 moves roughly, the bevel measuring element 2125 is inserted into the bevel groove of the lens frame, the measuring element part 2120 stops moving at FR, and the measuring element driving unit 2150
moves to FRL and stops. Next, pulse motor 21
07 is rotated every predetermined number of unit rotation pulses. At this time, the measuring stylus section 2120 moves on the guide shafts 2010a, 2010b according to the radius vector of the lens frame, the amount of movement is read by the potentiometer 2134, and the measuring stylus axis 2122 moves up and down according to the curve of the lens frame. The amount of movement is read by potentiometer 2130. From the rotation angle θ of the pulse motor 2107, the reading fir of the potentiometer 2134, and the reading Fiiz of the potentiometer 2130, the lens frame shape is (r, θ, 2) (n=1.2...・N
) is measured as After converting this measurement data (r, e, z) from polar coordinates to rectangular coordinates, any four points (X+ '/+, Z+ > (X2.V) of the data (x, y, z)
2.22 >(X3,Vg,23)(X4.V<,Z
4) Find the frame curve CF (the calculation formula is the same as how to find the lens curve).

Also, in Figure 10, x, y of (Xn, yn, Zn)
From the components (xn, yn), measured point A (xa, ya) has the maximum value in the X direction, measured point B (Xb, yb) has the minimum value in the x axis direction, and the maximum value in the y axis direction. Select the measured point C (XC, VC) with the minimum value in the y-axis direction and the measured point D (xd, yd) with the minimum value in the y-axis direction, and set the geometric center of the lens frame to 0.
Find F (XF, YF) as
Rotation center of 20 00 (XO, YO) Ma teno distance and Q
o, 1 from the amount of deviation of QF (ΔX, Δy), 1/2 of the distance FPD between the geometric centers of the lens frame is FPD/2- (L
−ΔX) −(L −(xF −xo) ) ...(2).

Next, the inner pupillary distance I is calculated from the interpupillary distance PD set in the input unit 4 as −(L −(xF −xo ) −PD/2) ・・
... Find the position where the optical center of the lens to be processed should be located based on the upper shift MU determined as (3) and set @05
(xs, ys) is obtained as Os (xs, ys) - (xF + 1.yF + U) = (xa + xb + L - (XF - XO) - Dandan.

From this OS, (Xn, yn) is converted into polar coordinates centered on QS, which is processed data (srn.

Sθn)(n-1, 2, -----, N> is obtained.

With the apparatus of this embodiment, it is possible to measure the shape of the left and right lens frames, respectively, or it is also possible to use data obtained by measuring the shape of one of the left and right lens frames and inverting the other.

Next temporary star trial counterfeit Next, the operation when measuring a template will be explained.

Pin 2078a of template holder 2077 attached to lid 2073 of template holder 2000B.

2078b is engaged with a hole formed in the template, and fixed to the template holder 2077 with a set screw 2079. In this embodiment, when the lid 2073 is closed, the template and holder 207
7 is located on the OR and coincides with the rotation center of the measuring stylus section 2120, so the geometric center of the template and the rotation center of the measuring stylus section 2120 coincide.

With the template set as described above, press the trace switch on the input section 4, which will be described later. At this time, rotating base 2
Reference numeral 105 is located at a position where the y-axis direction coincides with the moving direction of the probe drive unit 2150, and the probe drive unit 2150 is located at the reference position O.

When the probe drive section 2150 is moved in the opposite direction to the frame measurement, the bottle 21 installed in the probe section 2120 is moved.
32 comes into contact with the center arm 2002, and when it moves further, the center arm 2002, the right arm 2006, and the left arm 2009 are pushed apart. The rollers 2159 are connected to the guide portions 2160b to 2160a of the fixed guide plate 2160.
, the measuring head shaft 2122 is pushed up by the arm 2157, and the 7-run part 21 of the template measuring roller 2126
26a is maintained at a certain amount above the top surface of the template. After the probe drive unit 2150 moves to FOL, the solenoid 2064 is activated and the center arm 2002. Light arm 2006. The left arm 2009 is fixed, the movable guide plate 2161 is moved to a predetermined position by the solenoid 2164, and the probe drive unit 2150 is returned to the reference position.

At this time, since the guide portion 2160a of the fixed guide plate 2160 and the guide portion 2162a of the movable guide plate 2161 are configured to have the same height, the template measuring tool 0212
6 moves until it comes into contact with the template while maintaining a constant height. Subsequently, the pulse motor 2107 is rotated every predetermined unit rotation pulse number. At this time, the measuring head section 212
0 is the guide shaft 2010a, 2 according to the radius vector of the template.
010b, and the amount of movement is read by potentiometer 2134. Pulse motor 2107
From the rotation angle O and the reading r of the potentiometer 2134, the template shape is (rn, on) (n=1.2...
・, N).

From this δ1 measurement data (rn, on), the geometric center O is determined in the same way as in the case of frame measurement, and the FPD from the input section is
, PD, processed data based on Uchi-Kisemon I and U-Kisemon U (s rn, sθn) (n=1゜2,...
, N).

(c) Unprocessed lens shape measuring section (a) Configuration, Figure 11 shows the entire unprocessed lens shape measuring section for detecting the curve value, edge thickness, etc. of the lens after grinding under predetermined conditions before grinding. FIG. Its detailed configuration will be explained based on FIGS. 12 to 13.

FIG. 12 is a cross-sectional view of the shape measuring section 5 of the unprocessed lens.
Figure 3 is a plan view.

A shaft 501 is rotatably mounted on a frame 500 by a bearing 502, and a DC motor 503 and photoswitches 504, 5
05. Potentiometers 506 are respectively assembled.

A pulley 507 is rotatably attached to the shaft 501, and pulleys 508 and 7 langes 509 are respectively assembled.

A sensor plate 510 and a spring 511 are assembled to the pulley 507.

As shown in FIG. 14, a spring 511 is attached to the pulley 508 so as to sandwich a bottle 512 therebetween. For this reason,
When the spring 511 rotates with the rotation of the pulley 507, the spring 511 has a spring force that rotates the bin 512 attached to the rotatable pulley 508, and
12 rotates in the direction of the arrow, for example, regardless of the spring 511, a force is applied to return the bottle 512 to its original position.

A pulley 513 is attached to the rotating shaft of the motor 503, and a belt 5 that is hung between the pulley 507 and the pulley 513 is attached to the rotating shaft of the motor 503.
14, the rotation of the motor 503 is transmitted to the pulley 507.

The rotation of the motor 503 is controlled by photoswitches 504 and 505 by a sensor plate 510 attached to the boot 9-507.
is detected and controlled.

As the pulley 507 rotates, the pulley 508 to which the bottle 512 is attached rotates, and the row 1521, which is hooked between the rotary shaft of the potentiometer 506 and the pulley 520, rotates.
The rotation of the pulley 508 is controlled by the potentiometer 50.
Detected at 6. At this time, the shaft 501 and the 7-lunge 509 rotate simultaneously with the rotation of the pulley 508. The spring 522 is for keeping the tension of the lobe 521 constant.

The feelers 523 and 524 are rotatably attached to a measuring arm 527 by means of bins 525 and 526, respectively, and the measuring arm 527 is attached to the 7-lunge 509.

The initial position and measurement end position of the measurement arm 527 are detected by the photoswitch 504. Also, the photoswitch 50
5 detects the position of 523°524 relief of the feeler and the measurement position with respect to the front refractive surface of the lens and the rear refractive surface of the lens, respectively. The measurement end position by the photoswitch 504 and the position of relief of the rear refractive surface of the lens by the photoswitch 505 match. FIG. 15 is a diagram showing the correspondence between the signals of the photoswitch 504 and photoswitch 505.

As shown in FIG. 16, a shaft 529 on which a microswitch 528 is assembled is disposed on the measurement arm 527, and the shaft 529
9 has a rotatable arm 531 having a rotatable feeler 530, which is held in the direction of the arrow by a spring 532, and which is held in the direction of the arrow by a microswitch 528.
The position of 530 is detected.

The force bar 533 prevents grinding water and the like from adhering to the measuring device, and the sealing material 534 prevents grinding water and the like from entering between the cover and the measuring device.

In this embodiment, a third feeler 530 is provided so as to come into contact with the lens edge, but when the lens is not suitable for processing, the feelers 523 and 524 often show abnormal data, so the feeler 530 is It is possible to omit it.

(b) Measuring method First, the motor 5 controlled by the photoswitch 505
03, and the measurement arm 527 is rotated from the initial position to the position where the front refracting surface of the lens is located, as shown in FIG. 17-1. In addition, in the relief position, when the carriage 700 holding the lens moves in the direction of the arrow, the feeler 523 and the lens do not interfere, and the feeler 523 does not interfere with the lens.
30 is placed in a positional relationship such that it comes into contact with the lens edge.

Next, the lens LE moves in the direction of arrow 535.

The amount of movement is controlled by the shape data of the IN mirror or the shape data of the upper mold, which is framed after lens processing. Based on these data, the lens moves in the direction of the arrow.

If the lens size does not deviate from the shape data of the eyeglass frame or upper mold shape data, the feeler 530 comes into contact with the lens edge and moves in the direction of arrow 535, and the microswitch 528 detects this. When the lens size is out of range, a signal from the microswitch 528 indicates on the display section 3 that grinding is not possible. Micro switch 528
When detecting the movement of the feeler 530, the motor 503 is rotated so that the feeler 523 comes into contact with the front refracting surface in order to measure the shape of the front refracting surface of the lens.

The amount of rotation is determined by taking into consideration the general thickness of the lens and the length of the feeler 530 in the edge direction, and the lens is rotated to a designed position. This state is shown in FIGS. 17-2 and 17-3.

When the feeler 523 moves to the position indicated by the two-dot chain line in the figure, the force of the spring 511 attached to the pulley 50'I acts to bring the feeler 523 into contact with the front refracting surface.

Next, move the lens 1 around the chuck shafts 704a and 704b.
When rotated, the lens moves in the direction of arrow 536 according to the shape data of the eyeglass frame or the tree shape data, and the feeler 523 moves in the direction of arrow 537.
6 to obtain the shape of the front refractive surface of the lens. Also,
At the same time, a microswitch 528 is used to measure whether the lens can be processed into a wooden shape according to the above data, and this is displayed.

After that, the carriage 700 is returned to the initial position, and the motor 5
03 is further rotated to the escape position for measuring the rear refractive surface of the lens, and then the lens is moved to the measurement position.

While rotating the lens once, the amount of movement thereof is measured using the feeler 524 in the same manner as the measurement of the front refractive surface.

(d) Display section and input section FIG. 18 is an external view of the display section 3 and input section 4 of this embodiment, both of which are integrally formed.

The input section of this embodiment consists of various sheet switches, including a main switch 400 that controls power on/off;
It consists of a setting switch group 401 for inputting various processing information and an operation switch group 410 for instructing how to operate the apparatus.

The setting switch group 401 includes a lens switch 402 that indicates whether the material of the lens to be processed is plastic or glass;
A frame switch 403 that indicates whether the frame material is cell or metal, a mode switch 404 that selects the processing mode between semi-processing and bevel processing, and an R/L switch 405 that selects whether the lens to be processed is for the left eye or the right eye. , a far/near switch 406 that performs up/down layout of the lens aperture and conversion of PD value between far and near vision, an input changeover switch 407 that selects an item to change setting data, and Increase/decrease data + switch 408
and one switch 409 are arranged.

The operation switch group 410 includes a start switch 411,
Pause switch 412 for temporary stop, which also serves as a screen changeover switch to bevel simulation display, switch 413 for opening/closing the lens chuck, switch 4 for opening/closing the cover.
14. Double printing switch 415 for finishing printing twice, trace switch 4 for instructing lens frame and template tracing
16, there is a next data switch 417 that transfers the data measured by the lens frame and template shape measuring section 2.

The display unit 3 is composed of a liquid crystal display, and displays the setting values of processing information, bevel position simulation for simulating the fitting state of the bevel and lens frame, reference setting values, etc. under the control of the main calculation control circuit described later. do.

FIG. 19 is an example of a display screen, FIG. 19-1 is a screen for setting lens processing information, and FIG. 19-2 is a bevel simulation screen.

(3) Electrical control system of the entire device The electric control system of this embodiment having the mechanical configuration as described above will be explained.

FIG. 20 is a block diagram of the electrical system of the entire device.

The main arithmetic control circuit is composed of, for example, a microprocessor, and is controlled by a sequence program stored in the main program. The main calculation control circuit can exchange data with IC cards, optometry system devices, etc. via a serial communication port, and can exchange data with the tracer calculation control circuit of the lens frame and template shape measuring section.
communicate.

The main calculation control circuit includes a display section 3. An input section 4 and an audio playback device are connected.

In addition, each photo switch unit such as photo switches 504 and 505 for measurement, a machining end photo switch for detecting the machining completion state, and each micro switch unit 1- for opening/closing the cover, machining pressure, and lens chuck is also the main calculation control circuit. It is connected to the.

A potentiometer 506 that measures the shape of the lens to be processed is connected to an A/D converter, and the converted result is input to the main arithmetic and control circuit. Lens measurement data processed by the main arithmetic control circuit is stored in a lens/frame data memory.

Carriage movement motor 714. Carriage up and down motor 7
28. The lens rotation axis motor 721 is connected to the main arithmetic circuit via a pulse motor driver and a pulse generator. The pulse generator is a device for receiving commands from the main arithmetic circuit and controlling how many pulses are output to each pulse motor at a period of H2, that is, the operation of each motor.

Processing pressure motor 733. The lens measurement motor 503 and each motor for opening and closing the cover are driven by a drive circuit that receives commands from the main arithmetic and control circuit.

The grindstone motor 65 and the water supply pump motor are driven by an AC power source, and their rotation and stop are controlled by a switch circuit controlled by commands from the main arithmetic control circuit.

Next, the lens frame and template shape measuring section will be explained.

Potentiometer 21 for measuring the shape of the lens frame/template
30.2134 and the output of a potentiometer 2046 for measuring the rim thickness of the frame are connected to an A/D converter, and the converted results are input to the tracer calculation control circuit. Each microswitch unit, such as a microswitch for frame confirmation, is also connected to the tracer calculation control circuit.

The tracer rotation motor 2107 is controlled by a tracer calculation control circuit via a pulse motor driver. Also, the tracer moving motor 2152. Frame fixed solenoid 2064. The probe fixing solenoid 2164 is driven by each drive circuit that receives commands from the tracer calculation control circuit.

The tracer calculation control circuit is composed of, for example, a microprocessor, and is controlled by a sequence program stored in a program memory.

Furthermore, the measured shape data of the lens frame and template are temporarily stored in a trace data memory and transferred to the main arithmetic and control circuit.

(4) Next, the operation of the lens grinding device will be explained based on the flowchart of FIG. 21.

Step 1-1 After turning on the main switch 400 in FIG. 21, first set the frame or template on the frame or template holder, and use the trace switch 416 to trace.

Step 1-2 Input the patient's PD@ and astigmatism axis. In the case of template measurement, the FPD value is also input. In addition, the distance changeover switch 4
06 sets whether the input PD is far or near. The setting status is displayed on the display of the display unit 3. After inputting the far PD with the distance set to far, if the distance is changed to near using the far/near switch 406, the PD is converted to the near by the following equation.

l means the required working distance, 12 means the distance between the Japanese corneal vertices, and 13 means the distance between the corneal apex and the rotation point.

When near PD is input in the near state and then changed to far, it is converted to far PD using the following formula.

Details of the conversion are described in Japanese Patent Laid-Open No. 82621/1983.

Further, the upper and lower layouts are also set to the setting values input in advance in the reference value setting described above for each of the near and far areas. If you want to make changes to that value, click (
+) switch 408. It can be changed using the (-) switch 409. At this time, the PD can also be changed.

Step 1-3 Use the method described above using the frame or template radius information and FPD value obtained in Step 1-1 and the PD top and bottom layout information input in the previous step.

Coordinates are transformed to a newer coordinate center, and new radius vector information (r
s5n, rsθn) and store it in the frame data memory.

Step 1-4 The operator determines the material of the lens to be processed, and selects whether it is a glass lens or a plastic lens using the lens selection switch 40.
2, whether the frame is metal or cell, the frame changeover switch 403 selects whether it is a processed lens, right eye or left eye.
Using the L changeover switch 405, manual processing or bevel processing is input using the mode switch 404. Based on the setting values entered in advance in the standard value setting for each of the 8 types of combinations depending on whether the lens is plastic or glass, the frame is cell or metal, and the mode is beveled or flat.
Set the lens processing size.

If you want to change the setting value, press the (+) switch 40.
8. It can be changed using the (-) switch 409. If the R/L designation of the processed lens is the same as the measurement side at the time of frame measurement, the data is used as is, but if it is different, the data is reversed left and right and used.

Step 1-5 The lens is chucked by rotating the motor 706 using the switch 413 for opening the lens chuck. At this time, if the lens has a directional property such as an astigmatic axis, it is chucked with the axial direction facing the center of rotation of the grindstone.

Step 1-6 Step 1-7 If there is no abnormality in the above steps, start switch 41
Press 1 to start.

When confirming that the start switch 411 is pressed, the main arithmetic and control circuit performs processing correction (grinding wheel diameter correction).

Here, point a is the center of rotation of the grinding wheel, point b is the center of lens processing, and R
is the radius of the grindstone, LE is the frame data, and L is the distance between the center of rotation of the grindstone and the center of lens processing. Here, the radial information (
rsδn, rsθn) in the frame de(n=1.2.3...N
) When the astigmatic axis is other than 180°, rsθn is offset by that difference, and rsθ-n is used instead of rsθn.

Next, the radius vector information (rsδn, rsθn) is rotated around the machining center by a small arbitrary angle, and the same calculation as in the previous equation is performed.

The rotation angle of this coordinate is cr cr =1.2.3...
・N) and rotate 360 degrees sequentially from ξ1 to ξn. The maximum value of the slope at each ξi is Ll, and rs at that time
Let θn be i. Also (Li ξ1(9i)(i =
1.2.3...N) as processing correction information and stored in the frame data memory.

Step 2-1 If the designation in step 1-4 is beveling mode, the process proceeds to step 2-2, and if the designation is manual processing mode, the process proceeds to step 3-1.

Step 2-2 When the beveling mode is designated, the main arithmetic control circuit rotates the lens rotation axis motor 721 via the pulse generator and pulse motor driver so that rsθn faces in the same direction as the grinding wheel rotates. The cell rotates the lens axes 704a, 704b.

Next, the carriage is rotated by the motor 714 in the same manner,
After moving to the measurement reference position at the left end of the carriage stroke, the motor 728 is rotated to change L to a measurable position.

After that, using the aforementioned unprocessed lens shape measurement fj1MA,
Measure the lens edge position on the line of radius vector information. The front edge position of the lens thus determined is defined as rZn, and the position of the rear edge of the lens is defined as IZn. This is Koba information (Izn, rZn
) (n=1.2.3...N) and store this in the frame data memory.

If it is determined that there is a part where the outer diameter of the lens is smaller than the diameter of the mold, it is determined that a lens with the desired lens frame shape cannot be obtained, and a warning is displayed on the display and execution of subsequent steps is canceled. do.

Step 2-3 Edge information obtained in Step 2-2 (12n, rZn)
Find the front curve and rear curve.

First, the radial information (rs6n, rsθ mouth) is converted into orthogonal coordinates (
Xn, Yn). Any four points (X″Yl
), (X2.Y2 >, (X3.Yl ) (X4゜Y
4) each edge information (l Z meeting, +2.).

(lZz, 1Zz), (123, 123>, (I24
, l Z4), first find the front curve and its center.

Here, (a, b, c) represent the center coordinates of the curve, and R represents the radius of the curve.

a=DI/Dt)=Dt/DC=D3/[) Here, K,=(X”1-X2)+(YII autopsy)+(Iz
, "-+zz) Next, all 1z is replaced with rz to find the rear curve and its center. Based on this information, the bevel curve is found.

The bevel curve is the curve drawn by the apex of the V-groove on the outer periphery that is processed to fit the lens frame.A curve that follows the front curve is desirable for fitting, but if the bevel curve is too steep or too gentle, the frame It is inconvenient to put it in. Therefore, if the front curve value is within a certain width, the bevel curve will form the same curve as the front curve. The position of the apex of the bevel is set a certain amount behind the edge position of the front surface of the lens. The center of the curve is placed on the line connecting the center of the front curve and the center of the rear curve.

If the bevel curve exceeds a certain width, the edge information (+z
n, rZn), lZn+(rZn-lZn)R/10=yZn to yz
Find n. At this time, if R=4, it is equivalent to setting the edge thickness at a ratio of 4:6.

If a curve along the front curve is possible, use the data as (rsθn, ylZn), and if it is not possible, use R
The data obtained with =4 is (rsθn.

VaZn) as bevel data.

When the edge is thick, it may not be necessary to maintain the ratio along the front curve of the lens. In this case, the bevel data follows the frame curve.

Step 2-4 Display the bevel shape obtained in the above step on the display section 3.

The frame shape is displayed on the display based on the radius vector information (rs6n, rsθn), and a cursor 30 that rotates roughly around the processing center is displayed. The bevel cross section 32 at the position where the cursor and the frame shape are in contact is displayed on the left side of the panel. The cursor is (
+) While the switch is pressed, it rotates to the right. (-) While the switch is pressed, it rotates to the left, and the bevel cross section at that position is always displayed.

When the rotation cursor is at the position indicated by the rim thickness measurement position mark 31, the rim position mark 33 is located at the upper left of the bevel cross section.
Display.

The bevel is positioned so that the front surface of the lens has a certain relationship with the front surface of the rim based on the measured rim thickness.

Step 2-5.2-6 If there is no problem after checking the bevel curve, start the process again using the start switch 400 to start machining.

According to the settings in step 1-4, the carriage 714 is moved by the motor so that the lens to be machined is placed on the plastic rough grindstone 60G if the lens is plastic, or on the glass rough grindstone 60a if it is glass.

After rotating the grindstone, the motor moves the distance between the center of rotation of the grindstone and the center of lens processing to l+ of the processing correction information ni, ξ;, O1> read from the frame data memory. At that time, wait until the machining end photo switch 727 is turned on, rotate the angle to ξ2, and at the same time turn L to Ll.
move it to.

Continuously perform the above operations (Li, ei>(i=12.3・
...Conducted based on N). As a result, the lens is processed into the shape of the radius vector information (rs6n, rson).

Step 2-7.2-8.2-9 After the lens is removed from the grindstone by the motor 728, the lens is moved onto the bevel grindstone by the carriage moving motor 714.

Next, processing correction information (Ll, ei, ei) and bevel data (rson, rson) or (rson, yk
It is obtained by converting the beveling data YZi from Zn>.

First, convert rson such that 0i = rsθn to i-1゜2
．． 3...Find in the order of N. At that time “Sθn
The bevel position ylZn or ykZn for the selected frame is sequentially selected, converted into a form of bevel processing information (Liξ1Zi) as Zi, and then stored in the frame data memory again.

Based on this information, the motor 728 sets Li, the motor 721 sets ei, and the motor 714 sets Zi at i=1.
．． 2.3 Processing is performed while controlling simultaneously in the order of N.

Step 3-1 When the grinding mode is manual processing mode, according to the settings in step 1-4, if the lens is plastic, the rough grindstone for plastic is 60G.If the lens is glass, the lens to be processed is placed on the rough grindstone for glass 60a. The motor 714 moves the carriage. After the grindstone is rotated, the motor 728 moves the distance between the center of rotation of the grindstone and the center of lens processing to Li in the processing correction information (Liξ16)i) read from the frame data memory. At this time, wait until the machining end photo switch 727 is turned on, rotate the angle to ξ2, and at the same time move L to Ll. Continuously perform the above operations (Liξ1) (i=1.2,3
．．・・・・・・Conducted based on N).

As a result, the lens is processed into the shape of the radius vector information (rson, rson).

Step 3-2.3-3 After the lens is removed from the grindstone by the motor 728, the lens LE is moved onto the flat part of the bevel grindstone 60G by the carriage movement motor 714. Here step 2
- Finish the outer periphery of the lens LE by the same method as below.

Of course, this explanation is based on the principle of operation, and various changes can be made depending on the degree of automation.

Although the positional embodiments of the present invention have been described above, it is obvious to those skilled in the art that the embodiments can be easily modified based on the same technical idea as the present invention, and these are also included in the present invention. Needless to say.

[Effects of the Invention] According to the present invention, a device is provided which can intensively incorporate information necessary for upper tank processing and which can be understood by a processor without any experience required.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the overall configuration of a lens grinding device according to the present invention, Fig. 2 is a sectional view of the carriage, Fig. 3-a is a view taken from arrow A showing the drive mechanism of the carriage, and Fig. 3 is B -B sectional view, FIG. 4 is a diagram explaining the principle of the device, FIG. 5 is a perspective view showing the lens frame and template shape measuring section according to this embodiment, and FIG. 6-1 is a diagram showing the frame holding section 200OA. 6-2 is a detailed view of the holding part, FIG. 6-3 is a diagram explaining the lens holding mechanism, and FIG. 6-4 is a view of a part of the housing 2001 viewed from the back side. 6-5 is a diagram for explaining the rim thickness measuring mechanism, and FIG. 6-6 is a diagram for explaining the frame fixing mechanism. Figure 7-1 is a plan view of the measuring section, and Figure 7-2 is its C.
-C sectional view, FIG. 7-3 is a DD sectional view, and FIG. 7-4 is an EE sectional view. Figures 8-1 and 8-2 are diagrams showing the measurement method, Figures 9-1 and 9-2 are diagrams explaining the movement of the probe in the vertical direction, and Figure 10 is a diagram explaining coordinate transformation. This is a diagram. FIG. 11 is a schematic diagram of the metal body of the shape measuring part of an unprocessed lens, FIG. 12 is a sectional view of the shape measuring part of the unprocessed lens, and FIG. 13 is a plan view of the shape measuring part of the unprocessed lens. FIG. 15 is a diagram showing the correspondence between each signal of the photoswitch 504 and the photoswitch 505, FIG. 16 is a diagram for measuring the lens radius, FIGS. 17-1, 17-2, and 17-3. FIG. 3 is a diagram illustrating the measurement operation of the measurement section. Fig. 18 is an external view of the display unit and input unit of this embodiment, Fig. 19 is an example of a display screen, Fig. 19-1 is a screen for setting lens processing information, and Fig. 19-2 is a screen for setting lens processing information. This is a screen shot of a Yagen simulation. FIG. 20 is a block diagram of the electrical system of the entire device. FIG. 21 is a flowchart explaining the operation of the device. 2... Lens frame and template shape measuring device 3...
... Display section 4 ... Input section 5 ...
... Lens shape measuring device 6 ... Lens grinding section 7 ... Carriage section Patent applicant Nidek Co., Ltd. N) 2=') Fig. 6-2 Fig. 6-6 ul 5J) 5I)LI) 1st? -1 Figure 1? -2 Figure Figure

Claims (3)

[Claims] (1) In a grinding machine that grinds a lens so that it fits into the frame of an eyeglass frame, an input means for inputting information such as optometry information and frame information, a means for measuring the shape of the lens to be processed, and the input means The present invention is characterized by comprising: means for calculating a virtual lens shape after processing based on input information and measurement information from a shape measuring means of the lens to be processed; and means for graphically displaying the calculation results on a monitor. Tamazuri machine. (2) A beading machine characterized in that the graphic display according to item 1 is comprised of a virtual lens shape after processing, a virtual bevel cross section, and a mark indicating the bevel position where the cross section is displayed. (3) A lens-sliding machine characterized in that the virtual lens shape of item 2 also displays the center of the lens shape and the optical center.