JPS6234675Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a material supply device in a metal processing machine, which grasps the material transferred to the gripping part, moves it as it is, and supplies the material to the next process. The purpose is to do this accurately with a simple structure.

In order to achieve this object, the present invention provides a screw rod 3 screwed into the base part 1b of the material gripping main body 1 having a gripping piece 1a at the front end, which is loosely inserted into the base of the opening/closing plate 2 and pivotally supported, and the opening/closing plate 2 A spring 7 that presses the base portion 1b against the base portion 1b is wound around the screw rod 3, and the front gripping piece 1a of the material gripping main body 1 is opposed to the front gripping piece 1a at a distance, and the tip of the opening/closing plate 2 is wide open against the spring 7. This was made possible by abutting the base end of the opening/closing rod 4 on the tip of the shaft support of the opening/closing plate 2,
The other end is made to protrude through the base part 1b of the material gripping body 1, and the opposite surface is formed on the non-opening/closing plate 2 side of the material gripping body 1 with a slope 6 inclined with respect to the advancing/retreating direction of the material gripping body 1. The engaged body 5 is placed in place, and the slope 6 is
The tip of the opening/closing rod 4 is separated as the material gripping main body 1 moves forward and backward.

Next, an outline of the present invention will be explained based on embodiments shown in the drawings.

Reference numeral 1 denotes a material gripping body, which moves forward and backward in the front and back direction (up and down in the drawing).

A step part A is formed in the middle of the material gripping main body 1, and the front part is a gripping piece 1a and the rear part is a base part 1b.

Opposing the gripping piece 1a, the opening/closing plate 2 is pivoted by loosely inserting a screw rod 3 screwed into the rear base portion 1b of the step A of the material gripping main body 1 at its base, and the head 3a of the screw rod 3 and the opening/closing plate 2 A spring 7 is interposed between them by being crimped.

Therefore, the opening/closing plate 2 is pressed against the base portion 1b of the material gripping main body 1 by the elastic force of the spring 7, and the gripping piece 1a
It is possible to grip the workpiece 8 with the , and also opens toward the non-gripping piece 1a side against the spring 7, so that the gripping piece 1a
You can widen the distance between

By changing the depth and depth of the threading of the screw rod 3, the elastic force of the spring 7 is changed, and the gripping force of the opening/closing plate 2 with the gripping piece 1a can be made stronger or weaker.

4 is an opening/closing rod whose base end is in contact with the opening/closing plate 2;
The tip passes through the through hole 9 and projects toward the non-openable plate 2 side.

The tip of the opening/closing rod 4 that protrudes from the base portion 1b is
The surface facing the non-opening/closing plate 2 side of the material gripping main body 1 is separated from the slope 6 which is inclined with respect to the forward and backward movement direction of the material gripping main body 1 as the material gripping main body 1 advances and retreats, and the slope 6
The engaging body 5 having the above-mentioned shape is fixedly installed.

Therefore, when the material gripping main body 1 moves backward and the tip of the opening/closing rod 4 comes into contact with the slope 6 and slides, the engaging body 5 is in a fixed position, so the opening/closing rod 4 resists the spring 7 and slides against the opening/closing plate. Since it is pushed to the 2 side, the opening/closing rod 4
moves laterally, and the opening/closing plate 2, which is pivotally supported by loosely inserting the screw rod 3, opens at the front end by lever action using the shaft support as a fulcrum, and the distance between it and the gripping piece 1a becomes wider, allowing the workpiece 8 to be opened and closed with the gripping piece 1a. It can be inserted between the two plates.

Next, when the material gripping main body 1 moves forward and the tip of the opening/closing rod 4 separates from the slope 6, the opening/closing plate 2 is pushed toward the gripping piece 1a by the biasing force of the spring 7, and the distance between the opening and closing plate 2 and the gripping piece 1a is the narrowest. The workpiece 8 can be fed forward by gripping the workpiece 8 and moving forward further.

Therefore, as the material gripping body 1 moves back and forth, the tip of the opening/closing rod contacts and separates from the slope 6 of the engaging body 5, and the opening/closing plate 2 opens and closes to insert and grip the workpiece 8, and moves forward while gripping it. be.

Reference numeral 10 denotes a guide collar for smooth lateral movement of the opening/closing rod 4.

As described above, since the structure of the present invention is extremely simple, it can be installed in any processing part of any processing device with a small amount of space, and has the effect that the operation is simple and accurate.

[Brief explanation of the drawing]

The drawing is a cross-sectional plan view of the main part of the device of the present invention. Code, 1 is material gripping body, 1a is gripping piece, 1b
2 is a base, 2 is an opening/closing plate, 3 is a screw rod, 4 is an opening/closing rod, 5 is an engaging body, 6 is a slope, and 7 is a spring.

Claims (1)

[Scope of utility model registration request] The screw rod 3 screwed into the base part 1b of the material gripping main body 1 having the gripping piece 1a on the front side is loosely inserted into the base of the opening/closing plate 2 to support it, and a spring 7 presses the opening/closing plate 2 against the base part 1b. is wound around the screw rod 3, faces the front gripping piece 1a of the material gripping main body 1 with a gap, and the tip of the opening/closing plate 2 can be opened widely against the spring 7, and the shaft of the opening/closing plate 2 The base end of the opening/closing rod 4 is attached to the tip of the branch, and the other end is attached to the base portion 1b of the material gripping main body 1.
An engaging body 5 is placed on the side of the non-opening/closing plate 2 of the material gripping main body 1, and the engaging body 5 has a slope 6 whose opposing surface is inclined with respect to the advancing/retreating direction of the material gripping main body 1. A material supply device for a metal processing machine, characterized in that the tip of the opening/closing rod 4 is separated as the material gripping main body 1 moves forward and backward.