JPS6020810A - Machining device of radius (r) - Google Patents

Abstract

PURPOSE:To improve productivity of a work and its quality, by constituting a device in such a manner that main unit, chuck unit, attitude corrective unit and a conveying unit are operated interlocking by switches, in the case of the device machining a radius (R) in an angular part in the internal peripheral side of the annular work. CONSTITUTION:A start signal, closing a limit switch 71 of a lift chute 63, causes a discriminating device 66 to discriminate whether or not a work is placed in a regular direction. The work, when it is placed in the regular direction, is lifted by actuating a lifter cylinder 64 and fed to a successive feed stopper device 97. The work, if it operates a limit switch 105, runs by itself to a chuck unit 14, closing a limit switch 107, and the work, after confirming any work not existent in the chuck 14, is forced to be pressed and chucked to a reference end face not shown in the drawing in the chuck unit 14. Here a main spindle unit 3 operates machining the work by advancing a tool part 5 to be rotated. In such way, operation of a machining device is automatized improving efficiency and quantity.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rounding device for rounding the inner corner of an annular workpiece, and is intended to be fully automated.

(Prior art) In Fig. 1, numeral 1 is an annular workpiece (hereinafter referred to as a vehicle pressure workpiece) to which the present application is applied, and the part indicated by the symbol A is the inner circumference side corner that becomes the part to be machined. The term "R" referred to as "Id" refers to the process of adding a radius of approximately 01 to 2 millimeters (millimeters) to the inner corner A.

Barrel processing has conventionally been known as a radius processing method as described above.

However, with this barrel machining, the machining media does not easily hit the inner corner A, and for example, when creating a radius of approximately α5W, it takes about 2 hours with a vibrating barrel.
Even with the centrifugal barrel, which is more efficient than the vibrating barrel, it still takes about 15 minutes, resulting in extremely low productivity.

Therefore, the following method is also used. That is, a soft grindstone designated by the reference numeral 2 in FIG. 1 is rotated by an air grinder (not shown), and its conical tip is pressed against the inner corner A to perform the rounding process. When using this method, the actual processing time is about 10 seconds, which is shorter than barrel processing, and the intended purpose is achieved. However, with this method, the rotating grindstone 2 is manually moved forward and backward relative to the workpiece 1, and the machining relies on the operator's hand feel, so the radius of the radius varies and remains constant. The problem is that quality cannot be guaranteed.

(Object of the Invention) The present invention was made in view of the above circumstances, and its purpose is to provide a round processing device that is fully automated to improve productivity and product quality. It's about doing.

(Structure of the invention) In order to achieve the above object, the present invention has the following configuration.

That is, the machining tool attached to the tool section is rotated by the driving means and moved forward and backward with respect to the annular workpiece with the grinding surface of the machining tip in contact with the inner corner of the current workpiece. a spindle unit for rounding the inner corner of the workpiece, and a chuck unit for receiving the annular workpiece before machining, holding it fixed at a reference position during machining, and sending it out to the outside when the machining is finished. , a posture correction unit that corrects the posture of the annular workpiece before a fixed holding operation of the chuck unit so that the annular workpiece is accurately held at the reference position by the chuck unit;
a transport unit that sequentially transports the annular workpiece to the chuck unit, and the spindle unit, the chuck unit,
This rounding device is characterized by being provided with switch means for interlocking the operations of each component of the positioning unit and the conveying unit.

(Example) Examples according to the present invention will be described below based on the M plane.

FIG. 2 is a perspective view showing a schematic configuration of the radius processing apparatus according to the present invention, and in this figure, 3 is a main shaft unit. As shown in FIGS. 3 to 5, this spindle unit 3 is installed on the ped 4 together with a chuck unit and a pusher device, which will be described later, and includes a tool section 5, a spindle motor 6, and a spindle cylinder 7. Due to this. The tool portion 5 is adapted to be fitted with a rounding tool having a swingable machining tip as shown in Japanese Utility Model Application No. 57-180416 and Japanese Patent Application No. 58-56590. This tool 2 portion 5 is connected to a main shaft motor 6 by a belt, gears, etc., and is driven by the main shaft motor 6 two rotations relative to the workpiece during machining. Main shaft cylinder 7
is a hydraulic type and is identified on the bed 4, and 8 is its piston rod. Reference numeral 6a denotes a main shaft unit body, the piston rod 8 of the main shaft cylinder 7 is connected to this main shaft unit main body 3a, and the tool part 5 and the main shaft motor 6 are integrated with this main shaft unit main body 5a.

Two guide rails 9, 9 are laid on the bed 4, and the spindle unit main body 6a is moved along these guide rails 9, 9.
It is said that it can be moved freely. As a result, the tool section 5, which is integrated with the spindle unit body, is guided by the spindle cylinder 7 to the guide rails 9, 9, so that it can be driven forward and backward with respect to the work fixedly held by the chuck unit, which will be described later. It's so hot.

Returning to FIG. 2, 10 is a glue switch for confirming the forward end of the main spindle unit body 6a, and 11 is a glue switch for confirming the forward end of the main spindle unit main body 6a.
Intermediate position a limit switch for I'fli recognition, 12
are limit switches for confirming the backward end of the spindle unit main body 6a, and these limit switches i, 0.11.
12 is fixed to the bed 4. 15 is the limit switch 10, 11.12 connected to the spindle unit main body 6.
This is an operating member that opens and closes in conjunction with the movement of a. still,
Details of the limit switches 10, 11, and 12 +1 (the functions will be described later).

Reference numeral 14 denotes a chuck unit, and this chuck unit 14 has the function of receiving the workpiece before machining, holding it fixed at a reference position during machining, and sending it out to the outside when the machining is completed. In the figure, 14a is the cylindrical chuck unit main body. This chuck unit main body 14a is rotatable around the axis via bearings 16, 16, 16, 16 on a case stand 15 fixedly installed on the bed 4, and is provided coaxially with the main shaft unit main body 6a. There is.

A reference metal 17 is fixed to the end of the chuck unit body 14a on the side closer to the spindle unit body 6a. This reference gold 17f-t, ffl-shaped, has the following parts at its ends:
W (as shown in Figure 7j, a U-shaped workpiece storage groove 18 is formed, and 18a is the workpiece entrance/exit. The end surface of the reference metal 17 forming the workpiece storage groove 18 (d This is the base yarn end surface 19 for positioning.

A presser plate 20 is fixed to the front of the reference metal 17.

This presser plate 20 is used to hold the workpiece in the work storage groove 18]r.
□ This is provided to prevent the workpiece from escaping from the work storage groove 18 due to its force when carried into the workpiece storage groove 18, and a circular tool insertion window 21 is formed in the center thereof. A rectangular punch insertion window 22.22 is formed radially outward of the tool insertion window 21. The diameter dimension C of the tool insertion window 21 is formed to be shorter than the dimension of the workpiece 1 shown in FIG.
The distance B between the ends of the bushing insertion window 22 and the bushing insertion window 22 is longer than the outer diameter of the annular workpiece.

23 is a position indexing motor, and this position indexing motor 25
23a is used to determine the position of the workpiece inlet/outlet 18a when receiving and sending out the workpieces in the workpiece storage groove for one day, and 23a is its output shaft. A pulley 24 is fixed to this output shaft 23a, and a pulley 25 is fixed near the end of the chuck unit main body 14a on the side far from the main shaft unit 3. Both pulleys 24 and 25 are connected by a belt 26. ing. Thereby, the position of the workpiece entrance/exit 18a is moved by the rotation of the chuck unit main body 14a by the position indexing motor 26. Here, the rotation angle of the workpiece entrance/exit 18a is set to 165 degrees, which is the angle at which the workpiece begins to roll, so that the time required for position determination is minimized. Reference numerals 27 and 28 indicate glue switches for confirming the position of the workpiece entrance/exit 18a, which are fixed to the case stand 15 via a bracket member 29, as shown in FIG. 30 is an operation plate, and an operation piece 5 is provided around the operation plate.
1.52 is fixed. This operation plate 50 is fixed to the pulley 25, and thereby the position indexing motor 2
The limit switches 27 and 28 are opened and closed by means of their operation pieces 31 and 32 in conjunction with the rotation of the limit switches 27 and 28. The details of the operation will be described in the operation section.

A drawbar 63 is loosely inserted into the chuck unit main body 14a, and a lever lever 55.55 is attached to the side end of the drawbar 56 near the reference metal 17 via a connecting shaft 64, as shown in FIG. A chuck lever 37.37 is pivotally connected to the free end of these levers 55.55 by a pivot pin 56.56, and a chuck lever 37.37 is connected to the free end of the lever as shown in FIG. A grasping claw member 38°68 is swingably mounted. 39.39 is a claw portion of the grasping claw member 38.38. The grasping claw member 5B',
3B is provided with respective claw portions 59,59 facing each other, and chucks the annular workpiece by bringing the claw portions 59,59 into contact with the annular workpiece. It is something that exists.

A pneumatic rotary cylinder 40 is provided at the end of the chuck unit body 14a opposite to the side to which the reference metal 17 is fixed.
is fixed, and 41 is its piston rod, and this piston rod 41 is connected to one end of the drawbar 35. As a result, the forward and backward movement of the piston rod 41 of the rotary cylinder 40 causes the Tecoreno (-5
5 and 55 pivot around the pivot pins 56 and 56, and move the grasping claw members 38 and 38 in the radial direction of the annular workpiece,
It is designed to chuck and unchuck an annular workpiece.

The rotary cylinder 40 is provided with a pressure switch 42, and this pressure switch 42 is for checking whether the workpiece is chucked. Further, the chuck unit 14 has a built-in timer (not shown), and the presence of a workpiece in the workpiece storage groove 18 is confirmed based on the timer pressure.

Returning to FIG. 2, 45 is a bushing device as a posture correction unit, and in FIGS. 11 to 13, 44 is the main body of the device. A flange member 45 is fixed to this device main body 44, and the bushing device 43 is fixed to the ped 4 via this flange member 45. 46
is a drive cylinder, and this drive cylinder 46 is of a pneumatic type, is fixed to the main body 44 of the apparatus, and has a built-in cam member (not shown).

47 is the cylinder shaft, and this cylinder shaft 47 is
It is rotated by a cam member and reciprocated in the axial direction. An arm member 48 is keyed to the tip of the cylinder shaft 47.
A support base 49 is fixed to the free end of. A push-in tip 50 is swingably supported by a swing pin 51 on the support base 49 . This push-in tip 50 is
It has two push pins 52.52 protruding from its end face, and these push pins 52.52 are attached to the chuck unit 1.
The pusher is inserted into the workpiece storage groove 18 through the pusher insertion window 22 formed in the presser plate 20 of No. 4, and pressed against the end surface of the workpiece therein.

55 is a guide bar, and this guide bar <-55 is provided in the device main body 44 so as to be able to reciprocate in the axial direction. 5
4 is a connecting member, and this connecting member 54 is connected to the guide bar 5.
5 and the cylinder shaft 47. The connecting member 54 is immovable in the axial direction with respect to the cylinder shaft 47, and a bearing 55 is interposed between the connecting member 54 and the cylinder shaft 47, so that the connecting member 54 and the cylinder shaft 47 can rotate relative to each other. There is. The connecting member 54 is fixed integrally with the guide bar 53, so that it moves in the axial direction together with the cylinder shaft 47 and guides the axial movement of the cylinder 1ib 47.

Limit switches 56 and 57 for confirming the positions of the forward and backward ends of the push pin 52 are fixed to the flange member 45. In addition, near the rear end of Gaitono (-53),
Operating members 58,59 are provided.

Returning to FIG. 2, reference numeral 60 denotes a conveyance unit, which is roughly composed of this conveyance unit 60Ii, a lift device 61, and a sequential feed chute device 62. The lift device 61 is for filling a progressive stop device, which will be described later, with workpieces flowing from other processes one by one, and includes a lift shade 63, a pneumatic glue cylinder 64, a lift rod 65, and a discrimination device 66. ing. The receiving portion of the lift chute 63 is connected to a chute 67 from another process, as also shown in the fourteenth picture.

A lifter cylinder 64/'i is supported by a support base 68, and 69 is its cylinder shaft. The lift rod 65 has one end connected to the cylinder shaft 69 and is connected to the lift chute 6.
It is provided to move up and down within 3. The upper end 111n65a of this lift rod 65 is inclined in the direction in which the workpiece flows, thereby promoting flow of the workpiece. The lower end of the lift chute 63, that is, the receiving part, is formed with a workpiece receiving surface 70 whose shape follows the outer peripheral surface of the workpiece. lift chute 6 with
It is designed to be carried into 3.

A limit switch 71 is provided at the work loading position of the lift chute 66.
is for confirming that a workpiece is present in the lift chute 65, and if this limit switch 71 fails to close, a discriminating device 66 is activated.

The determining device 66I'i is for determining whether the workpiece is in the correct orientation, and to explain its structure, 72 in FIGS. 15 to 17 is a fixed base plate. This fixed base plate 72 is fixed to an immovable body such as a chute. An upright plate 73 is fixed to the fixed base plate 72, and a pneumatic measuring cylinder 74 is fixed to the upright plate 73.

75 is a cylinder shaft of the same inspection cylinder 74, and a movable front plate 76 is integrally fixed to the tip of this cylinder shaft 75. This movable front plate 76 has a movable base plate 7
7 is fixed by welding, these are possible fjtj)
The face plate 76 and the movable base plate 77 are moved forward and backward together with the cylinder shaft 75 with respect to the lift shoe 1-651. It is provided with a pivoting center pin 7
8, a detection arm 79 is swingably supported.

This detection arm 79 (cut off) has an engagement hole 8 near its center of swing.
0 and a dog 81 at the tip.

82 is an inspection unit, and the inspection unit 82 is as follows.
It is roughly composed of the measuring needle 83, the spring case 84, and the coil spring 85. 8611 The head of the measuring needle 85, 87 is the tail, and the tip of the head 86 of the measuring needle 85. It has a tapered shape so that it can be inserted into the inner diameter of the workpiece. An engagement pin 88 is provided on the tail portion 87.
This retaining pin 88 (d) engages with the engagement hole 80 of the inspection arm 79. The inspection needle 83 is loosely inserted into the movable front plate 76. The spring case 84 tail part 8
A movable front plate 76 and a movable base plate 77 are fitted on the 7 side.
The coil spring 85 is fitted into the tail portion 87 of the measuring needle 83 and mounted inside the case 84 . 'The measuring needle 8 is
5 is urged in the forward direction with respect to the workpiece, and a movable front plate 76 and a movable base plate 77 are pushed by the inspection cylinder 74.
It is designed to be moved back and forth relative to the workpiece. A swing regulating stopper 89 is provided on the movable base plate 77, and the swing regulating stopper 89 restricts clockwise swinging of the measuring arm 79. The IM fixed base plate 72 is provided with a forward movement regulating screw 90 and 5 G, and the movable front plate 76 is provided with a protruding screw 91. cylinder t! 1+ 7 s
forward movement is restricted.

Reference numeral 92 denotes a limit switch, and this limit switch 92 is fixed to the movable base plate 77 so as to face the swinging area of the dog 81, which is attached to the tip of the inspection arm 79. It is supposed to be opened and closed. When this limit switch 92 is closed, the workpiece is assumed to be in the normal direction, and when it is not closed and remains open, the workpiece is assumed to be in the opposite direction to the normal direction. The measuring cylinder 74 is also provided with a limit switch 93°94, and the 1-nomint switch 95.9
Reference numeral 4 is for confirming the forward and backward movement of the cylinder shaft 75 of the inspection cylinder 74.

The limit switches 95 and 94 are reed switches operated by magnets attached to the piston portion of the measuring cylinder 74. 95 is a guide bar 95.
is inserted into and fixed to the movable front plate 76 so as to extend parallel to the cylinder iit+ 75, and guides the measuring needle 83 to move in a straight line.

The progressive chute device 62 has a chute 96 and a progressive stopper device 97, and one end of the sheet 96 is brought into contact with the upper end portion of the lift chute 63, which serves as the workpiece transfer portion, and serves as the workpiece transfer portion. The other end faces the workpiece inlet/outlet 18a of the chuck unit 14.

The progressive stopper device 97 is provided in the middle of the chute 96, and as shown in FIG.
(air cylinder here), stop rod 99, and push rod 1
00.

The actuator 98 is fixed to the chute 96 and fixed to the i+ machine frame 101, and 9.102 is its rod.

The stop rod 99 is coaxially connected to the rod 102, and is reciprocated by an actuator 98 so that its tip end enters and exits the seat 6. 105
is a lever 105 which rotates around the swing pin 104, and the push rod 100 is connected to the stop rod 99 by this lever 103. As a result, the push rod 100 is moved to the stop rod 9.
The stop bar 9 moves backward in conjunction with the forward motion of the stop bar 9, and moves forward in conjunction with the retreat of the stop bar 9, and its tip enters and exits the chute 96 in the same manner as the stop bar 99.

The chute 96 has its stop rod 99 and push rod 100.
A limit switch 105 is provided at a position between and facing the workpiece passage area. This limit switch 105 is for confirming the presence of a workpiece within the seat chuck 6.

Further, a limit switch 106 for confirming the backward end of the actuator 98 is also provided on the machine frame 101, and when this limit switch 106 is closed, the actuator 98
is moving forward. Reference numeral 107 is a limit switch J for checking the passage of the workpiece, and reference numeral 107a is a switch lever thereof.

This switch lever 107a extends near the passage exit of the chute 96, and when a workpiece comes into contact with this switch lever 107a, the limit switch 107 is closed and the passage of the workpiece is confirmed.

In FIGS. 2 and 19, 108 is a carry-out chute (this carry-out shoe) 108 is for carrying out the processed workpiece, and its entrance is connected to the workpiece entrance 18a of the chuck unit 14 described above. The image is rotated 135 degrees.

A limit switch 109 is provided near the entrance of the unloading chute 108.
The removal of Nyoshiwork is now confirmed.

In addition, in FIG. 5, 110 is a chip sheet;
Reference numeral 1 denotes a chip processing container, in which minute chips generated by cutting during processing are carried out through this chute 110 to a chip processing container 111 outside the machine.

The system configured as described above is controlled in conjunction with the opening/closing of limit switches such as pressure switches and proximity switches provided in each component by a contact sequence circuit. Let me explain.

Note that in the explanation of the configuration, the workpieces were not particularly designated with reference numerals, but for convenience, the workpieces will be described with reference numerals as appropriate.

First, a start signal is input, and the workpiece w1 is moved to the lift chute 6.
5, the discrimination device 66 is activated by closing the limit switch 71.

To briefly explain the operation of the discrimination device 66, when the presence of the workpiece W1 is confirmed by closing the limit switch 71, oil is first supplied to the inspection cylinder 74 from a hydraulic circuit (not shown). The cylinder shaft 75 moves forward.

When the cylinder shaft 75 moves forward, the measuring needle 83 moves forward across the workpiece w1 while being pressed by the coil spring 85 via the spring case 84 circumferentially surrounded by the movable front plate 76. The inspection arm 79 and limit switch 92 on the movable base plate 77, which are welded and fixed to the front plate 76, also synchronize with this movement. The figure shows a state in which the workpiece W1 exists in the normal orientation, and the head 86 of the measuring needle 83 is It comes into contact with the non-chamfered side end face of the workpiece w1 and stops moving forward.

Thereafter, the cylinder shaft 75 continues to move forward, and when the objects other than the measuring needle 85 move forward, the stopper screw 91 comes into contact with the forward movement regulating stopper 89, the limit switch 96 is closed, and the oil supply to the measuring cylinder 74 is stopped. You can continue until you do.

During this time, the coil spring 85 is compressed, and the measuring arm 79 on the movable base plate 77, which moves together with the movable front plate 76, moves the measuring needle 85 at the engagement hole 80.
The engagement pin 88 on the tail portion 87 of the holder is pushed relatively backward and swung in the direction of arrow B' in the figure.

Then, the dog 81 attached to the tip of the measuring arm 79 moves forward to the limit switch 92, and the limit switch 92 is closed. By closing the limit switch 92, it is determined that the workpiece W1 is in the normal orientation. Note that when the workpiece W1 is not in the normal orientation and its chamfered end face is facing the head 86 of the measuring needle 85, the head 86 is not aligned with the workpiece W.
1, the inspection arm 79
The swing angle of limit switch 9 becomes smaller accordingly.
2 is not opened.

As a result of this determination, the cylinder shaft 75 is retracted, and the retracted end limit switch 94 holds the cylinder shaft 75 at a certain point where it will break. As this holding means, a keep relay, a timer relay, etc. are used, and the link cylinder 64 is activated when both their contacts and the limit switch 94 are closed. That is, if the wire Wl is in the opposite direction to the normal direction, the lifter cylinder 64 will not operate even if the limit switch 94 is closed. Here, an alarm such as a lamp or a buzzer is used to notify the abnormality 'l/B and the orientation of the work Xv1 is changed manually, or the tilt g
+ Separately provide a relief lift rod with blood, and
For example 1-96, provide a separate release sheet, set the inclination direction of the release lift bar at the entrance of this release chute, lift the work W1 with this release lift bar, and flow the work W'l into the release chute. The process may be performed automatically.

By the way, the determination of the normal and reverse orientation of the workpiece W, 1 has been completed and it has been determined that the orientation is normal, and the backward end of the cylinder shaft 75 of the inspection cylinder 74 is connected to the limit switch 94.
Once confirmed, the starter cylinder 64 is activated.
The workpiece W1 is lifted by the rifling rod 65,
It is urged into a chute 96 and moves by itself, and is stopped by a stop rod 99 of a progressive stopper tube 97.

Therefore, when the limit switch 105 is closed by the workpiece W11c, the stop bar 99 retreats 1, and the workpiece W1 moves by itself within the chute 96 toward the workpiece bath inlet 18aK of the chuck unit 14. Incidentally, if there is a work W2 in addition to the work W1 in the progressive stopper device 97 as shown in FIG. 18, the push rod 100 moves forward in synchronization with the backward movement of the stop rod 99. This push rod 100 is inserted into the hollow part of the workpiece W2, and the workpiece W2 will not flow out together with the workpiece W1. That is, two or more workpieces are not transported to the chuck unit 14 at once, but are transported one by one by 41G. The backward end of the stop bar 99 is the limit switch 106
When the limit switch 10/) is closed as confirmed by W2 is prevented from moving on its own by the stop bar 99 and is ready for the next processing. Here, the limit switch 105 is closed by the workpiece W2, and even if the limit switch 105 is closed by the workpiece W2, until the limit switch 109 provided on the unloading chute 108 is closed, the stop switch 99
will not be set back.

By the way, limit switch 1 is activated due to the passage of workpiece W1.
When 07 is closed, the timer B4 for ensuring the presence of the workpiece W1 in the chuck unit 14 is activated, and then the workpiece ~v1 is collected in the chuck unit 14 (
The workpiece enters the groove 18 through the workpiece entrance 18a. When the timer confirms the presence of the workpiece W1, that is, when the timer's contact is closed, the drive cylinder 46 containing a cam is activated, and the arm member 48 moves forward while rotating, and its tip end The push-in pin 52 of the push-in tip 50 attached to the push-in tip 50 is inserted into the work storage groove 18 from the pusher insertion window 22 of the chuck unit 14. Then, the push pin 52 presses the workpiece W1 against the reference end face 19Vc of the reference metal 17. Here, the forward end of the cylinder shaft 47 of the drive cylinder 46 is connected to the limit switch 5.
6, that is, when the limit switch 56 is closed, the rotation cylinder 40 of the chuck unit 14 is activated, the drawbar 55 is retracted, and the grasping claw is pressed against the reference end surface 19 with the workpiece W1 pressed against the reference end surface 19. Part 38゜3
Chucked by 8. The chuck of the workpiece W1 is confirmed by the pressure switch 42, that is, the pressure switch 42
When the button is closed, the bushing device 43 is retracted.

When the backward end of the bushing device H45 is confirmed by the limit switch 57, that is, when the limit switch 57 is closed, the main shaft motor 6 of the main shaft unit 6 is started. At the same time, the spindle cylinder 7 advances the spindle unit main body 3a and the tool portion 5 integrated therewith toward the workpiece W1.

The forward speed is fast forward until the intermediate position is confirmed by the limit switch 11, and then the cutting feed is reciprocated with respect to the workpiece W1 until the forward end is confirmed by the limit switch 12. When the forward end is confirmed by the limit switch 12, the tool portion 5 is retreated with respect to the workpiece W1 together with the spindle unit main body 6a. Then, the limit switch 10 confirms that the retraction end of the spindle unit main body 6a is reached, and the machining cycle of the spindle unit 3 is completed.In addition, chips with insufficient coverage generated during machining of the workpiece W1 are caught by the chip chute 110. Since the chips are stored in the chip processing container 111, the surrounding area will not be contaminated. In addition, here, as a tool with a radius, Utility Application No. 57-180416 and Japanese Patent Application No. 58-565
Since a tool such as that shown in No. 9Q is used, the tool does not suffer from the dust caused by its true ring, which is necessary when using a soft whetstone.

By the way, when the limit switch 10 is closed, the position indexing motor 25 is activated and the chuck unit main body 14a is activated.
is rotated by 135 degrees, and the workpiece entrance/exit 18 is indexed to the entrance of the unloading chute 108, that is, to the unloading position. When this split end is confirmed by the limit switch 28, the drawbar 35 is pushed forward, the grasping claw member 58 is opened, and the chuck is loosened. Then, the workpiece W1 is self-propelled and sent into the unloading seam 108. Then, the workpiece W1 closes the limit switch 109 while the workpiece W1 is self-propelled. Then, the chuck unit main body 14a is rotated, and the workpiece inlet/outlet 18a is indexed to the exit of the chute 96, that is, to the workpiece loading position, and this indexing end is confirmed by the limit switch 27. At this time, if the workpiece W2 is present in the stopper device 89, the stop bar 99 is moved back, and the workpiece W5 is transported to the chuck unit 14.

W4 will also be sequentially transported and processed one by one.

According to the above embodiment, the following effects are achieved.

(1) Since a chute is used as a means of transporting the workpiece and the self-propulsion of the workpiece is utilized, there is no need for the conventional loader for copying and unloading the workpiece, so the distance between the loading and unloading machine can be shortened by 11 km. If this is possible, cost reduction can also be achieved.

(2) Since the posture of the workpiece is corrected by the pusher device 43 and then chucked by the chuck unit 14, it is possible to prevent variations in the radius shape due to poor posture of the workpiece as much as possible.

(3) After confirming the orientation of the workpiece by the discrimination device 66, the workpiece is fed into the chute 9B.
(4) Chips generated during machining can be removed using the chip chute No. 11.
The figure shows 41? of the Gutsusha device? , Figure 12 is a plan view of the structure, Figure 15 is a rear view of the structure, Figure 141 is a schematic diagram of the transport unit, and Figure 15 is the structure of the discriminator. 16 is a partially sectional plan view thereof; FIG. 17 is a partially sectional side view of -E; FIG. 18 is a plan view showing the 14th structure of the stopper device.

The 19th J is a review explaining the position indexing 7 of the chuck unit and the unloading of the workpiece by this, Akira 1ξZ
1.

3...Main side 1 unit 14...Chuck unit 45゛°Busonya installation? 60...Transportation unit 61...Lift device 62...Chute device 1# 66...Discrimination device 27...Progressive stopper device to, fl, 12.27.28.42.56.57
．． 71.92.95°>4.105.106.107.
109-x inch q = stage patented NET person Toyota Motor Corporation Co., Ltd. Kyoho Co., Ltd. Manufactured! zu( Fang 11 Figure 13 Figure 17 [1

Claims (1)

[Claims] (1) The machining tool attached to the tool section is rotated multiple times by the driving means with respect to the annular workpiece with the grinding surface of the machining tip welded to the inner corner of the annular workpiece. a spindle unit that moves forward and backward while rounding the inner corner; and a spindle unit that receives the annular work before machining, holds it fixed at its reference position during machining, and sends it out to the outside when machining is completed. a chuck unit; a posture correction unit that corrects the posture of the annular work before a fixed holding operation of the chuck unit so that the annular work is accurately held at the reference position by the chuck unit; and the annular work. a conveyance unit that primarily conveys the material to the chuck unit, and is fully equipped with the spindle unit, the chuck unit,
A radius processing device characterized by being provided with a switch means for interlocking the operations of each component of the posture correction unit and the transport unit.