JPS595465Y2 - die set - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a holder or die set used for fixing molds in press operations and the like.

In press work, unless the upper and lower molds are properly aligned and fixed, not only will the desired product not be obtained, but in severe cases, accidents will occur that will cause the molds to break.

In order to enable proper and quick positioning and fixing of the mold, both loosening and fixing must be done quickly and reliably.

The flanges of the upper die attached to the slide and the lower die attached to the bolster are usually held by a die set, but the flange of the upper die is generally thicker than that of the lower die. It was not possible to use the same holder for the mold and the lower mold.

The present invention is aimed at eliminating the drawbacks of the conventional devices as mentioned above.According to the present invention, a substantially rectangular device having a T-shaped section at its lower end that fits into a T-shaped section provided on a bolster or slide of a press machine is used. a clevis fitting having a bolt portion that loosely fits into a vertical hole provided at the front end of the main body, and a U-shaped portion continuous to the upper end of the bolt portion; an adjustment nut disposed in a lateral cavity communicating at an intermediate position and threadedly engaged with a bolt portion of the clevis fitting, the vertical movement of which is limited by the top and bottom walls of the cavity; It includes a lever metal fitting that is swingably supported by a pin provided in the shape part, and a tightening screw that is screwed into a screw hole provided at the rear end of the lever metal fitting and comes into contact with the top surface of the main body. A die set is provided in which tightening is performed by the front end of a lever fitting by tightening a tightening screw after rotating to adjust the height of the clevis fitting.

Embodiments of the present invention will be described with reference to the accompanying drawings.

In the figure, 1 is a generally rectangular body, the lower end of which is provided with a T-shaped cross section 2 suitable for fitting into a T-shaped groove (not shown) provided in the bolster or slide of the press machine; A notch 3 is formed at the front upper end, and a vertical hole 4 is provided that opens at this position.

In the illustrated embodiment, the hole 4 is formed as a blind hole, but it may also be a through hole.

Incidentally, a U-shaped groove 6 is provided on the upper surface of the main body 1.

A clevis fitting 1 having a bolt part 11 loosely fitted into a hole 4 and a U-shaped part 12 connected to the upper end of the bolt part 11
2 is provided.

An adjustment nut 14 for adjusting the height position of the revitalized fitting 10 relative to the main body 1 is accommodated in a lateral cavity 7 provided in the main body 1.

The cavity 7 is made to communicate with the hole 4 at an intermediate position of the length of the hole 4, and the width of the main body 1 at the position of the cavity 7 is smaller than the outer diameter of the nut 14, and the knurling provided on the outer periphery of the nut 15 The nut can be rotated by operating the part with the fingertips.

The height of the cavity 7 is somewhat higher than the height of the nut 14 so that its top wall 8 and bottom wall 9 limit the vertical movement of the nut 14 within the cavity 7.

The upright wall 3a of the notch 3 is preferably a clevis fitting 10.
The walls 12a of the U-shaped portion of the clevis fitting 10 are slidably engaged with each other with a narrow clearance to prevent the clevis fitting 10 from rotating when the nut 14 is rotated.

A pin 15 is inserted through a hole 13 in the U-shaped portion 12 of the clevis fitting 10 and held in place by a C-shaped ring 16.

A lever fitting 17 is swingably supported by the pin 15, and for this purpose the lever fitting 17 has a width suitable for being accommodated in the U-shaped part 12 and has a hole 18 for the pin 15.

A tapped hole 20 is provided at the rear end of the lever fitting 17, a tightening screw 21 is screwed into the tapped hole 20, and its tip 22 is attached to the main body 1.
It extends into the groove 6 on the top surface of the main body 1 and comes into contact with the top surface of the main body 1 .

Preferably, the tip 22 is cylindrical with an outer diameter suitable for fitting with the side walls of the groove 6.

By doing so, it is possible to further prevent the clevis fitting 10 from rotating when the adjusting nut 14 is rotated.

By tightening the tightening screw 21, the lever fitting 17 is rotated counterclockwise in FIG. 1, and the lever fitting 17 can be tightened by its front end 19.

When in use, fit the T-shaped cross section 2 into the T-shaped groove provided on the bolster or slide of the press machine, bring it to the desired position, and insert the adjusting nut 14 into the flange of the mold to be tightened according to the height. Rotate to adjust the height of the tip 19 of the lever metal fitting 17.

FIG. 1 shows a low height state, and FIG. 4 shows a high height state.

Next, tighten the tightening screw 21.

This fixes the position of the die set and at the same time fixes the mold to the bolster or slide.

Conversely, by loosening the tightening screw 21, the position of the mold and the position of the die set itself can be adjusted freely.

As described above, according to the present invention, it is extremely easy to adjust the position and tighten the mold, and the same die set can be commonly used for the lower mold and the upper mold, so it is highly versatile.

[Brief explanation of drawings]

FIG. 1 is a side view of the die set according to the present invention, FIG. 2 is a rear view, FIG. 3 is an exploded perspective view, and FIG. 4 is a partial side view showing a state in which the height is adjusted. 1: Main body, 2: T-shaped cross section, 3: Notch, 4: Vertical hole, 7: Lateral space, 10: Clevis fitting, 11
: Bolt part, 12: U-shaped part, 14: Adjustment lug)j
5: pin, 17: lever metal fitting, 19: front end, 20: screw hole, 21: tightening screw, 8: top wall, 9: bottom wall.

Claims (1)

[Scope of utility model registration request] A substantially rectangular main body 1 having a T-shaped cross section at the lower end that fits into a T-shaped groove provided in a bolster or slide of a press machine, a bolt portion loosely fitted into a vertical hole provided at the front end of the main body, and A clevis fitting 10 having a U-shaped portion connected to the upper end of the bolt portion, and a clevis fitting 10 disposed in a lateral cavity communicating with the hole of the main body at an intermediate position thereof and protruding from the cavity in both left and right directions. An adjustment nut 14 is threadedly engaged with a bolt portion of the clevis and whose vertical movement is restricted by the top and bottom walls of the cavity, and is swingably supported by a pin provided in the U-shaped portion of the clevis fitting. It includes a lever metal fitting 17 and a screw 21 that is screwed into a tapped hole provided at the rear end of the lever metal fitting and comes into contact with the upper surface of the main body,
A die set in which tightening is performed by the front end of the lever fitting by rotating the adjustment nut to adjust the height of the clevis fitting and then tightening the tightening screw.