JPH1157863A - Slide punch moving device of press molding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a smooth movement of a slide punch possible by mounting a slide cam, having an inclined slide plane and a subsequent vertical plane, at an above end of a position holding part which connects with a roller, to the upper die set and by installing an activating part and a stopper to the bottom die set. SOLUTION: When the upper die set 13 descends, the position holding part of the slide cam 14 descends. Resulting from this movement, the roller 8 rotates but the slide punch dose not move. When the upper die set 13 descends, a slide plane 16 engages with the roller 8, which slides its position towards the molding side while rotating by the inclination of the sliding plane 16. Thereby, the slide punch 1 moves forward and stops at a position where the vertical plane of the slide cam 14 engages with the roller 8. A coil spring 11 is compressed and obtains an enerdization force for getting back to its original position. When the upper die set 13 descends furthermore, the slide punch 1 keeps its forward position as is, and a holder presser 18 and a punch presser 19 press and fix a member on the upper faces of the holder 3 and the slide punch 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for moving a slide punch in press molding.

[0002]

2. Description of the Related Art A metal plate molded product having a smaller diameter above a central portion, such as a crimp terminal, is formed through a number of bending steps. In the bending process, the punch needs to be moved along the workpiece because the metal plate material is plastically deformed and processed along the shape of the punch. In the case where the material is sequentially processed after the material is intermittently moved in the horizontal direction, the punch is moved in a horizontal direction perpendicular to the moving direction.

[0003]

Since the horizontal movement of the punch is performed by an ascending and descending operating member, a large impact is applied to the punch, which also causes inertia to act, which is a major cause of damage, noise, vibration and the like. It has become.
In view of the above, an object of the present invention is to provide a device capable of minimizing an impact during a working operation and smoothly moving horizontally.

[0004]

According to the present invention, there is provided an operating portion projecting downward on a side opposite to a mold portion of a slide punch which moves horizontally in a holder provided in a lower die set. A roller is rotatably mounted on the vertical surface of the upper part, a coil spring is stretched between the holder and the operating part, and one end of the upper die set has a position holding part which always engages with the roller and an upper end of the position holding part. The above problem is solved by mounting a slide cam having an inclined slide surface and a vertical surface following the slide surface, and providing a stopper for abutting the operating portion on the lower die set. The above-mentioned problem is also solved by providing a support base for supporting the lower die set.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.
Moves horizontally in a slide hole 4 provided in a holder 3 installed on the lower die set 2.

The slide punch 1 is provided with an operating portion 6 formed in a key shape toward the lower side on the opposite side of the mold portion 5, and a lower surface of the operating portion 6 is supported by a support table 7 provided on the lower die set 2. I have come to support it. On the other hand, a rotatable roller 8 is mounted on the vertical surface of the upper part of the operating part 6.

Further, a spring hole 9 is provided in the holder 3, and a spring hole 10 is also provided in the opposing operating portion 6, and the end of the coil spring 11 is fitted between the two holes 9 and 10, so that the slide punch 1 is pulled in. One end of the operating portion 6 abuts on a stopper 12 protruding from the end of the lower die set 2 to hold the retracted position.

On the other hand, a slide cam 14 is fixed to one end of the upper die set 13 so as to protrude downward. The slide cam 14 is provided with a position holding portion 15 located between the roller 8 and the stopper 12, and an inclined slide surface 16 is provided above the position holding portion 15, and a vertical surface 17 is provided at an end thereof. Provided.

On the lower surface of the upper die set 13, a holder press 18 for pressing the upper surface of the holder 3 during the molding operation and a punch press 19 for pressing the slide punch 1 are mounted.

In this embodiment, the slide cam 1 is formed as described above.
4 is lowered, and the roller 8
Rotates, but the slide punch 1 keeps its position.

When the upper die set 13 is further lowered, the slide surface 16 engages with the roller 8, and the roller 8 slides to the forming side (left side in the figure) while rotating due to the inclination of the slide surface 16. The slide punch 1 moves forward with this slide, and the vertical surface 1 of the slide cam 14 is moved.
The slide punch 1 is positioned at a position where the roller 7 is engaged with the roller 8.
Horizontal movement is stopped.

At this time, the coil spring 11 is in a compressed state, and an urging force for returning to the original position is applied.

Further, when the upper die set 13 is lowered, the slide punch 1 presses the upper surface of the holder 3 with the holder presser 18 while holding the advance position, and presses the upper surface of the slide punch 1 with the punch presser 19. The slide punch 1 is fixed so as not to move during molding of the material.

When the upper die set 13 is lifted after the molding operation is completed, the slide punch 1 keeps the advanced position while the vertical surface 17 of the slide cam 14 is in contact with the roller 8. When the roller 16 comes into contact with the roller 8, the slide punch 1 is retracted by the urging force of the coil spring 11, and stops at the position where the operating portion 6 comes into contact with the stopper 12. The work is completed in this state.

[0015]

As described above, the present invention has the above-described structure and operation, and can smoothly move the slide punch horizontally, reduce the impact, reduce the possibility of breakage, and endure long-term use. be able to. In addition, since the lower surface of the slide punch is supported by the support base, the stress received by the slide punch due to the impact due to the lowering of the slide cam is reduced, and the durability is dramatically improved as compared with the conventional device, and noise and There is little vibration, and it has an excellent effect that can contribute to improvement of the working environment.

[0016]

[Brief description of the drawings]

FIG. 1 is a side view of the device of the present invention.

FIG. 2 is a partially cutaway side view showing only the main part.

[Description of Signs] 1 Slide punch 2 Lower die set 3 Holder 4 Slide hole 5 Mold part 6 Working part 7 Support base 8 Roller 9 Spring hole 10 Spring hole 11 Coil spring 12 Stopper 13 Upper die set 14 Slide cam 15 Position holding part 16 Slide surface 17 Vertical surface 18 Holder holder 19 Punch holder

Claims (2)

[Claims] An operating portion is provided on a side opposite to a mold portion of a slide punch which moves horizontally in a holder provided on a lower die set, and is provided on an upper portion of the operating portion with a rotatable roller. Mounted on a vertical surface, a coil spring is stretched between the holder and the operating part, and at one end of the upper die set, a position holding part that always engages with the roller, and a sliding surface inclined to the upper end of the position holding part, A slide punch moving device in press forming, wherein a slide cam provided with a vertical surface and a stopper is provided on a lower die set to contact an operating portion. 2. The slide punch moving device in press forming according to claim 1, wherein a support base for supporting a lower surface of the operating portion is provided on the lower die set.