JPH06325694A - Automatic clamp device - Google Patents

Abstract

(57) [Abstract] [Purpose] Automates the clamping mechanism that clamps workpieces such as deflection coil frames. [Structure] A cam disk rotatably provided on the lower surface of a cradle 70a of a holder body 7a on which a work 21 is placed is released by an arm 93 of a release means, and the release arm 93 is placed after the work 21 is placed. The work 21 is clamped by the clamp claws 83 that slide on the pedestal 70a by returning to the original state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic clamp device suitable for fixing a clamped body such as a work at a predetermined position.

[0002]

2. Description of the Related Art Conventionally, as a deflection yoke coil winding machine, when a deflection coil frame is mounted on a holder unit and a saddle coil is wound around the deflection yoke frame, it is necessary to rotate the deflection yoke frame. Therefore, it is necessary to clamp the deflection yoke frame on the holder unit. The present applicant has previously proposed a deflection yoke coil winding machine having such a holder unit as shown in FIG.

That is, in FIG. 10, a winding machine 1 has one nozzle unit 4, a guide unit 5 having two guides, one holder unit 7 and three tensioners 2 on a casing 1a. There is.

The nozzle unit 4 includes a nozzle 18, a nozzle rotation unit 4a and an XZ feed unit 10R, whereby the entire unit is moved in the XZ axis direction, and the nozzle 18 can be rotationally driven by a predetermined angle. It is like this. Further, the nozzle 18 is configured such that the tip thereof delivers the wire 9 supplied from the tensioner 2.

The guide unit 5 has a pair of guide operating parts 30 and 31, and these guide operating parts are provided with reversing means capable of rotating 180 °.
0, 31 and the reversing means are moved so that they can move in the X and Z axis directions.
It is configured to be driven by the Z feed unit 10L.

As shown in FIG. 11, the XZ feed unit 10L comprises AC servomotors 10a and 10b and ball screw driven slide units 10c and 10d. The slide base 32f to which the guide unit 5 is attached is moved in the front-rear direction or the up-down direction by the rotational driving of the AC servomotors 10a and 10b. Therefore, the pair of guide units 5 shown in FIG. 10 moves in the XZ axis direction. Here, the AC servomotors 10a and 10b can be Pearl motors that rotate by the number of supplied pulses, and by controlling the number of pulses, the slide units 10c and 10d can be moved to arbitrary positions. There is.

Further, the tensioner 2 is attached to the frame 34 as shown in FIG. 10, and the wire 9 is supplied from the supply reel of the winding supply source 3 via the paraffin coating unit 35 to a mechanically appropriate tension. It is configured to be able to supply to the nozzle unit 4.

The holder unit 7 includes a holder body 7a.
And a holder rotating device 7b, and the holder main body 7a
Thus, the deflection yoke is held and the holder rotating device 7b is rotated to rotate the deflection yoke by a predetermined angle θ.

[0009]

The deflection yoke frame 21 for the deflection yoke described in the above conventional configuration is placed on the holder main body 7a of the holder unit 7 and then the deflection yoke frame 21.
In this case, a plurality of clamp pieces are applied to the flange portion formed on the circumference of the upper opening, and the screws are manually screwed onto the holder body 7a. For this reason, manual work was required each time one work was wound, which reduced the operating rate during the winding work, and was a bottleneck for automation.

Further, although the conventional clamp piece is thick and large, if the clamp piece is formed in one ring shape, there is a problem in that the flange portion of the deflection yoke frame is covered with the clamp piece and the winding is hindered. .

The present invention provides a clamping device which eliminates the above-mentioned problems. The object of the present invention is to make the structure extremely thin and to clamp different kinds of works, and to perform manual work. It is designed to be automated and increase production capacity to improve the operating rate.

[0012]

As shown in FIG. 1, a clamp device of the present invention is capable of sliding on a cradle 70a on which a body to be clamped 21 is placed and on the cradle 70a. Clamping means 83 which is pivotally attached to the and clamps the clamped body 21.
And a releasing means 93 for releasing the biasing force of the cam disc 85, and a cam disc 85 having a cam groove 86 engaging with the sandwiching means 83 and having a biasing force applied thereto. 93 is operated to rotate the cam disk 85,
The clamping means 83 on 0a is brought to the non-clamping position, and the clamped body 21 is placed on the pedestal 70a, whereby the releasing means is returned to the original position to automatically clamp the clamped body 21. The attachment means 83 is configured to be clamped.

[0013]

According to the automatic clamp device of the present invention, the clamped body such as the deflection yoke frame is placed on the pedestal by operating the releasing means, and the clamping means is clamped on the pedestal only by returning the releasing means to the original position. Since the device automatically clamps, the manual clamping work can be omitted, and the operating rate in the coil winding process can be greatly improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The case where the automatic clamping device of the present invention is applied to a deflection yoke coil winding machine will be described below in detail. still,
Parts corresponding to those of the conventional configuration are designated by the same reference numerals, and duplicate description will be omitted. Before describing FIG. 1, the overall configuration of the winding device of the present invention will be described with reference to FIGS. 2 to 5. 2 is an overall perspective view of a winding device for winding a deflection yoke coil, FIG. 3 is a side view thereof, FIG. 4 is a plan view thereof, and FIG. 5 is a front view thereof. The winding mechanism is placed on the casing 1a. A tensioner 2 is attached to the rear of the housing 1a.

A plurality of wires 9 supplied from the winding reel of the winding supply source 3 are inserted into the nozzle 18 in the nozzle unit 4 through the tensioner 2 and then onto the deflection yoke frame 21 placed on the holder unit 7. Nozzle 1 of nozzle unit 4
The saddle type coil 9a is wound by inserting 8 through it.

Reference numeral 5 is a guide unit, and 6 is a wrapping unit that also serves as a guide unit. The XZ feed units 10L and 10R with built-in X and Z stages provide nozzles through the guide unit 5 and the wrapping unit 6 that also serves as a guide. When the wire 9 inserted in the unit 4 is wound around the deflection yoke frame 21, an operation of entwining and guiding the wire 9 is performed. Reference numeral 8 is a releasing means for releasing the clamp claw of the holder unit 7, which will be described later.

The structure of the tensioner 2 of the deflection yoke coil winding machine 1 described above is fixed to the tip of the arm 11 so as to project rearward from the upper surface of the casing 1a as shown in the side view of FIG. The tension arm mounting member 12 has a substantially rectangular shape, and the tension arm 13 is rotatably disposed on the tension arm mounting member 12 in the same manner as the reel 14 and the guide rollers 15 and 16.
At the tip of the arm 11, a V-shaped roller support arm 17 having a roller for guiding the wire 9 rotatably attached to the tip is attached.

The reel 14 rotatably attached to the tension arm attachment member 12 has a wire drawn from the supply reel of the winding supply source 3 (in this example, as shown in FIG. 2) in order to apply a frictional force. There are three tensioners 2,
Three wires are pulled out and wound at the same time.) 9 is a roller 16 disposed on the tension arm mounting member 12 through a roller rotatably pivotally mounted on a roller support arm 17.
After winding the pulley 14 so as to surround it through the rollers 15 and 15, it passes through a roller provided at the tip of the tension arm 13 to pass between the pulleys in the wire absorbing means 22, and together with the nozzle unit 4, X, The nozzle 1 of the nozzle unit 4 is rotated after the wire 9 is turned by a pulley pivotally attached to a roller guide arm 20 movable in the Z-axis direction.
8 is inserted.

Since the above wire absorbing means is not directly related to the present invention, its details are omitted, but it is added for winding a saddle type coil without irregular winding, and looseness caused when the wire 9 is entangled with a work is eliminated. Used to absorb.

A funnel-shaped deflection yoke frame 21 as a work is placed on the holder body 7a of the holder unit 7a provided on the front surface of the desk-shaped casing 1a, and clamping is performed by the automatic clamping device of the present invention. After that, the wire 9 from the nozzle 18 is entwined with the entanglement pin provided on the deflection yoke frame 21 by the entanglement unit 6 that also serves as a guide unit, and the guide unit 5 and the nozzle unit 4 cooperate with each other to attach the wire 9 to the deflection yoke frame 21. The saddle coil is wound.

As shown in FIG. 4, X, Z feed units 10L, 10R composed of an XZ stage are arranged on the left and right of the upper surface of the casing 1a, and the guide unit / linking unit 6 and the guide unit 5 are arranged in the XZ axis direction. The wire 9 inserted into the nozzle 18 of the nozzle unit 4 to be guided to the coil winding position of the deflection yoke frame 21, or the tip of the wire 9 is entangled while being pinched to a predetermined position of the deflection yoke frame 21. And other operations are performed.

FIG. 1 is a diagram for explaining the operation of the clamp device having the above-described structure, FIG. 1 is a general perspective view and plane and side sectional views, and FIG. 6 is a plan view and side sectional view of the clamp device releasing means. 7 and FIG. 9.

The overall structure in each of the above-mentioned drawings will be described in detail. On the front side of the upper surface of the casing 1a, the holder main body 7a constituting the holder unit 7 and the holder rotating device 7b are arranged along with the releasing means 8. It

The holder rotating device 7b is, as shown in FIGS. 6 to 8, a support plate 7 which is cantilevered via a cushioning material 70b and the like.
Drive motor 72b such as a pulse motor fixed to 1b
It is composed of. The drive shaft 73 of this drive motor 72b
b penetrates the through hole 74b formed in the support plate 71b and is projected upward, and the pulley 75b is attached to the projected drive shaft 73b.
Fit and fix.

The mounting height of the pulley 75b is the same as the mounting position of a pulley 71a that rotates at the same time as a workpiece receiving base 70a of the holder body 7a, which will be described later, and the support plate 71b generally supports the holder body 7a. It is fixed to an L metal fitting 73a fixed to a U-shaped base 72a.

The holder main body 7a is fixed to the upper surface of the casing 1a through bolts or the like, as shown in FIGS. A pedestal 70a is provided on the side of the base 72a opposite to the mounting surface of the housing 1a.
Also, a bearing pedestal 74a (see FIG. 8) for rotatably pivotally attaching the pulley 71a is fixed.

The bearing cradle 74a is formed in a disc shape, and the bearing 75 is provided in a countersunk circle which is concentrically countersunk.
a is fixed. A through hole 76a through which the work passes is formed in the center of the bearing cradle 74a.

Such bearing 75a and pulley 71a
Is loosely fitted in the inner shaft and is rotatable with respect to the bearing pedestal. A through hole 77a is formed in the center of the pulley 71 so that the work can penetrate therethrough. And pulley 7
A belt 80 is stretched around the outer periphery of 1a between the holder rotating device 7b and a pulley 75b of the holder rotating device 7b, so that the pulley 71a can rotate by a predetermined angle θ °.

An L-shaped spacer 79a is interposed between the pulley 71a and the work cradle 70a to form a cradle 70a.
Hold. The pedestal 70a is formed in a disk shape, a through hole 81 is formed in the center thereof, and the deflection yoke frame 21 is penetrated through the center hole 81 in the height direction and is mounted.

On the upper surface side of the pedestal 70a, on which the deflection yoke frame 21 is placed, countersunk grooves 82, 82, ... Are formed in a radial direction at positions that divide the circumference into four, and these grooves 82, 82. Similarly, a slot 84 penetrating in the radial direction is formed. The work clamp claw 83 is slid into the groove 82.

That is, the work clamp claw 83 is a substantially L-shaped clamp piece 83a shown in FIG. 6 for clamping the flange portion formed on the deflection yoke frame 21 and a sliding piece 83b which slides in the groove 82 of the pedestal 70a. The sliding piece 83b has a shape in which an L-shaped clamp piece 83a is raised from one end of the sliding piece 83b, and a pin 83c is planted downward on the sliding piece 83b. 8, the slot 84 of the pedestal 70a
Through the cam groove 86 formed in the cam disk 85 disposed below the pedestal 70a, and then the pin 83
The c is locked by a claw ring 87 so as not to come off from the cam groove 86.

A locking piece 87 that fits into the collar of the deflection yoke frame 21 is fixed at a position that divides the circumference of the pedestal 70a into two equal parts, and the protrusion provided on the collar of the deflection yoke frame 21 is A predetermined position can be set by aligning with the position of the locking piece 87.

The cam groove 86 of the cam disk 85 described above is shown in FIG.
As shown in FIG. 5, the stroke L'corresponding to the length (moving distance) L corresponding to the slot 84 of the pedestal 70a is provided in the radial direction, and the pin 83c can be smoothly moved in the circumferential direction by the stroke L '. Four cam-shaped members are provided at positions facing the groove 84.

The cam disk 85 is of a donut shape, and is rotatably loosely fitted between cam disk restraining plates 88 having a donut-shaped central through hole 78a attached to the lower surface of the work support 70a. ing.

Pins 89, 89 ... And 90, 90 ... Are planted at four positions respectively on the cam disk 85 and the cam disk restraining plate 88, and a spring 91, 90 is provided between each pin 89 and each pin 90. 9
1 is stretched, and the cam disc 85 is biased counterclockwise by a spring 91 in FIG. 1B. Further, the cam disc is engaged with a releasing arm 93 of a releasing means 8 described later. The pins 92 are erected downward.

The releasing means for operating the releasing arm 93 is constructed as a unit separate from the holder main body 7a. The structure of the releasing means 8 will be described with reference to FIGS. 7 and 9.

In FIGS. 7 and 9, the actuator support plate 96 is fixed on the pillars 95, 95 which are erected on the casing 1a of the winding machine 1. The support plate has a shape in which a substantially square corner portion is cut off, and a rotary actuator 94 that performs a rotary motion with air is fixed to the bottom surface side of the support plate 96. The through hole 9 is formed in the center of the support plate 96.
7, the shaft 98 of the actuator 94 is projected upward, and the release arm 93 is attached to the shaft 98 and the collar 9 is attached to the shaft 98.
It is configured to be fixed via 9 and press the engagement pin 92 to unlock the work. The release arm is configured to rotate approximately 90 ° as shown in FIG.

The operation of the clamp device having the above structure will be described with reference to FIGS. 1A and 1B. Incidentally, FIG. 1B shows the cam disk 8
5 is a bottom view of the release unit 5 as viewed from below, the operation is opposite to the operation of the release arm 93 of the release unit 8 shown in FIG. 7, but the description will be made with reference to FIG.

In FIG. 1B, the actuator 94 of the releasing means 8
Is operated to rotate the release arm 93 in the clockwise direction CW, the tip of the release arm 93 presses the engaging pin 92 that is set on the cam disc 85, and the cam disc 85 is moved to the cam disc 8
Rotating in the counterclockwise direction CCW about the central axis of 5, the pins 83c, 83c, ... Fitted in the cam groove 86 move from the inner peripheral side of the cam disk 85 to the outer peripheral side by a stroke L '.

Therefore, the work clamp claws 83 fixed to these pins 83c, 83c ...
The groove 84 moves from the inner peripheral position toward the outer peripheral position, and moves outward by a stroke L outside the flange of the deflection yoke frame 21.

Work clamp grooves 83, 83 ... In this state
Since .. is in an unlocked state, the deflection coil frame 21, which is a work, is placed on the pedestal 70a of the holder body 7a so that the deflection coil frame 21 is positioned according to the locking pieces 87, 87.

Next, when the actuator 94 of the releasing means is returned to the original state, the releasing arm 93 is disengaged from the engaging pin 93, so that the cam disc restraining plate 88 and the bottom surface of the pedestal 70a are pivotally rotatably attached. The cam disk 85 that is shown is the spring 91, 91
The pin 83c located at the outer peripheral position of the cam groove 86 is moved back to the inner peripheral position by being pulled back by the biasing force of.

Therefore, the pedestal 70 is fixed to the pin 83c.
Since the work clamp claw 83 which has been moved in the outer peripheral direction of a moves along the groove hole 84, the clamp claw 83 is moved to the groove 82.
Moving inside, the clamp piece 83a of the work clamp claw 83
Is to be clamped by sliding on the flange of the deflection coil frame 21.

Since the clamp device of the present invention is constructed and operated as described above, a clamp device having the following features can be obtained. 1. Since the four clamp pawls for holding the work can be moved back and forth to be clamped by the rotation of the cam disk, one drive source (rotary actuator) can simultaneously drive the four clamp pawls. 2. Since the four clamp claws are driven only by the rotation of the cam disc, the clamp device can be made up of only the cam disc and the clamp claws, which can be made extremely thin, which is advantageous for downsizing and space saving of the clamp device. 3. Since the holder body and the holder rotating device are separate units, it is possible to handle various works by simply replacing the holder body, and it is possible to produce many works. 4. Since the clamp claws are extremely narrow, it is extremely easy to wind when the work is to be exposed because most of the flange is exposed. 5. Since the clamp device has been fully automated, it is possible to carry out automatic operation simply by setting the work on the pedestal, which can reduce the production tact and work time, and increase the production volume. Although the deflection coil frame is used as the work in the above embodiment, the clamp device of this embodiment is not limited to such work.

[0045]

According to the automatic clamp device of the present invention, it is possible to obtain a device that can be constructed extremely small and can automatically clamp even different kinds of works so that the manual work can be automated and the operation rate can be increased.

[Brief description of drawings]

FIG. 1 is an operation explanatory view of a clamp device of the present invention.

FIG. 2 is a configuration diagram of a deflection yoke coil winding machine in which the clamp device of the present invention is used.

FIG. 3 is a side view of a deflection yoke coil winding machine in which the clamp device of the present invention is used.

FIG. 4 is a plan view of a deflection yoke coil winding machine in which the clamp device of the present invention is used.

FIG. 5 is a front view of a deflection yoke coil winding machine in which the clamp device of the present invention is used.

FIG. 6 is a configuration diagram of a clamp device of the present invention.

FIG. 7 is a plan view of the clamp device of the present invention.

FIG. 8 is a side sectional view of the clamp device of the present invention.

FIG. 9 is a side view of the releasing means used in the clamp device of the present invention.

FIG. 10 is a configuration diagram of a conventional winding machine.

FIG. 11 is a configuration diagram of a conventional XZ unit.

[Explanation of symbols]

 21 Deflection Coil Frame 70a Cradle 83 Work Clamp Claw 82 Groove 83c Pin 85 Cam Disc 86 Cam Groove 93 Release Arm

Claims (4)

[Claims] 1. A pedestal on which a clamped body is placed, a pinching means slidably mounted on the pedestal for pinching the clamped body, and the pinching means. The cam disk has a cam groove and is provided with a biasing force in a predetermined direction, and a releasing means for releasing the biasing force of the cam disk. The releasing means is operated to rotate the cam disk. The clamping means on the pedestal is brought to the clamped position, and the clamped body is automatically placed by placing the clamped body on the cradle and returning the releasing means to the original position. The automatic clamping device is characterized in that the clamping means is clamped. 2. The clamp base is formed in a concentric circle shape having a through hole in the center, and the clamping means is a clamp claw for clamping a plurality of clamped bodies sliding in the radial direction of the concentric circle base. It is characterized in that the shafts set up in the plurality of clamp claws are inserted into the plurality of cam grooves formed in the cam disc, and the cam disc is rotated by the releasing means. Item 1. The automatic clamp device according to Item 1. 3. The automatic clamp device according to claim 1, further comprising a rotating means for rotating the pedestal. 4. The automatic clamp device according to claim 1, wherein the releasing means is configured separately from the sandwiching means.