JPH0321778Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a gripper feeding device for conveying a plate-shaped workpiece in press working or the like.

BACKGROUND ART This type of device is one in which a slider is provided with a fixed jaw and a movable jaw for holding a workpiece, and the movable jaw is moved in conjunction with the forward movement of the slider, and the stroke of the slider is adjusted. is known.

Problems to be Solved by the Invention However, in such a device, the interlocking mechanism is complicated, the device becomes large, and it is difficult to adjust the stroke.

Means for Solving the Problems In order to solve these problems, the present invention aims to provide a device that is compact and easy to adjust the stroke. A holder and a slider are provided in front and back on the top surface of the case, and the slider is connected to a first cam ring on the rotating main shaft via a roller attached to an adjustment screw protruding from the bottom of the slider. a swinging rod that is adjustably connected on a shaft and that causes the movable jaw of the slider to spring downward via a first spring, and that swings the movable jaw that is connected to a second cam ring on the rotating main shaft; The slider is connected to the slider so as to be able to move upwardly against a first spring in order to clamp the workpiece by the forward movement of the slider, and furthermore, the movable jaw of the holder is springed upward via a second spring, and the movable jaw is connected to the slider. is connected to a rocking lever that is connected to a third cam ring on the rotating main shaft and swings, and is provided so as to be freely movable downward against a second spring so as to clamp the workpiece by the return movement of the slider. Features.

(Embodiment) An embodiment of the present invention will be described below based on the drawings. 1 indicates a case, and the case 1 includes a parallel 1
Slider 3 supported by a pair of guide bars 2, 2
and a fixed holder 4 on one side of the case 1 in the sliding direction of the slider 3, and the slider 3 is provided with a roller 6 that can be adjusted up and down via an adjustment screw 5 protruding from the lower part of the slider 3. , the roller 6 is
The swing shaft 7 is fitted into a guide groove 9 formed in the crank arm 8 at the end of the swing shaft 7, which is supported in the case 1 and perpendicular to the guide bars 2, 2, and the swing shaft 7 is provided protruding from its outer periphery. The roller 10 is mounted on a rotating main shaft 11 provided in the case 1 in parallel with the guide bars 2, 2.
The first cam ring 12, which is brought into contact with the side surface of the upper first cam ring 12 and thus rotates once by one rotation of the rotating main shaft 11, gives the swing shaft 7 a reciprocating swing of a predetermined angle. The swing gives the slider 3 a back and forth reciprocating motion, and its stroke is adjusted by a roller 6 which is adjusted by an adjustment screw 5. Furthermore, the slider 3 is capable of holding and releasing a plate-shaped workpiece. An upper fixed jaw 13 and a lower movable jaw 14 are provided, and the movable jaw 14 has a shaft rod 15 attached thereto fitted into the slider 3 so as to be slidable up and down. 1
6, and a roller 17 is pivotally supported at the lower end thereof, and the roller 17 is supported by a support shaft 18 provided inside the case 1 in parallel with the guide bars 2, 2.
The arm 20 is in contact with a swinging rod 19 which is parallel to the support shaft 18 and protrudes from one side at the middle part of the support shaft 18, and an arm 20 is provided to project from the support shaft 18 perpendicularly to its end.
is connected to the rotating main shaft 1 via the roll 21 at its tip.
The movable jaw 14 is brought into contact with the outer periphery of the second cam ring 22 provided at
When the slider 3 moves forward, an upward movement is applied against the first spring 16 to clamp the workpiece.

The holder 4 is also provided with an upper fixed jaw 23 for holding and releasing a plate-shaped work, and a lower movable jaw 24.
A swinging lever 28 is attached to the spindle 18, which is supported by a second spring 26 and springs upward by a second spring 26, and comes into contact with a roller 27 provided on the spindle 25. The movable jaw 24 is brought into contact with the outer periphery of the third cam ring 30 provided on the rotating main shaft 11 via the movable jaw 24.
With this rotation, when the slider 3 moves backward, a downward movement is applied to the workpiece against the second spring 26.

In addition, each of the fixed jaws 13 and 23 has a shaft rod 31 attached to each of them in order to easily move the attachment position and make it easier to attach the workpiece.
is inserted into the upper machine frame 32 and the spring 33 is inserted into the upper machine frame 32.
The lever 34 is pivotably supported at right angles to the protrusion of the shaft rod 31 that protrudes outside the machine frame 32, and the lever 34 is adjustably screwed onto the machine frame 32. By contacting the stopper 36 on the adjuster 35, it is fixed against the spring 33, and when the lever 34 is rotated, the head cam 37 formed at the tip slides on the stopper 36, thereby resisting the spring 33. It is designed to be moved upwards. In the figure, numeral 38 indicates a work guiding rod provided on the upper surface of the case 1.

Operation According to the embodiment of the present invention configured as described above, when a workpiece is inserted between each jaw of the slider 3 and the holder 4, and then the rotating main shaft 11 is driven to cause the slider 3 to reciprocate, With the forward movement of the slider 3, the workpiece is clamped and sent by the movable jaw 14 on the slider 3, which moves in conjunction with this, and then, with the return movement of the slider 3, onto the holder 4, which moves in conjunction with this. The workpiece is held by the movable jaw 24 of the slider 3, and the workpiece is held without moving due to the backward movement of the slider 3.By repeating this, the workpiece is fed with each forward movement of the slider 3, and the workpiece is fed with each forward movement of the slider 3. The amount is adjusted by an adjustment screw 5 provided on the slider 3.

Effects of the Invention As described above, according to the present invention, the slider 3 is connected to the first cam ring 12 on the rotating main shaft 11 via the roller 6 attached to the adjustment screw 5 protruding from the lower part of the slider 3.
The movable jaw 14 of the slider 3 is connected to the first spring 16 in an adjustable manner, so that the interlocking mechanism of the slider 3 is simple and its stroke can be easily adjusted. The movable jaw 14
is connected to a swinging rod 19 that is connected to a second cam ring 22 on the rotating main shaft 11 and swings, so that it can freely move upward against a first spring 16 in order to clamp a workpiece with the forward movement of the slider 3. At the same time, the movable jaw 24 of the holder 4 is urged upward via the second spring 26, and the movable jaw 24 is connected to the swinging lever 28 connected to the third cam ring 30 on the rotating main shaft 11 to swing. Since the movable jaws 14 and 24 are connected to each other and are provided so as to be freely movable downward against the second spring 26 in order to clamp the workpiece by the return movement of the slider 3, each movable jaw 14, 24 can be moved accurately and the interlocking mechanism can be formed compactly. It has the following effects.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a sectional view taken along the line of FIG. 1, FIG. 3 is a sectional view taken along the line of FIG. FIG. 1 is a sectional view taken along the line in FIG. DESCRIPTION OF SYMBOLS 1... Case, 3... Slider, 4... Holder, 5... Adjustment screw, 6... Roller, 7... Rocking shaft, 11... Rotating main shaft, 12... First cam ring,
13...Fixed Jyo, 14...Movable Jyo, 16
...First spring, 19... Swinging rod, 22... Second cam ring, 23... Fixed jaw, 24... Movable jaw, 26... Second spring, 28... Rocking lever, 3
0...Third cam wheel.

Claims (1)

[Scope of utility model registration request] A holder and a slider having a fixed jaw and a movable jaw above and below are provided on the upper surface of the case, and the slider is connected to the first cam wheel on the rotating main shaft via a roller attached to an adjustment screw protruding from the lower part of the holder. The movable jyo of the slider is connected to a swinging shaft connected to and swings in an adjustable manner, and the movable jyo of the slider is springed downward via a first spring, and the movable jyo is connected to a second cam ring on the rotating main shaft. The slider is connected to a swinging rod that is connected and swings, and is provided so as to be able to move upwardly against a first spring in order to clamp the workpiece by the forward movement of the slider, and furthermore, the movable jaw of the holder is connected to the swinging rod through a second spring. At the same time, the movable jaw is connected to a swing lever connected to a third cam ring on the rotating main shaft and swings, and the slider is moved back against the second spring to clamp the workpiece. A gripper feeding device characterized by being provided so as to be freely movable downward.