SU741999A2 - Krutikof's assembly for securing die to press slide - Google Patents

Description

I

The invention relates to a tooling for cold stamping parts and can be used as an auxiliary device for fastening a working tool on a press.

A device for attaching a punch to a press ram is known with the possibility of mutual displacement.

The known device comprises a shank with a flange and a spherical bearing surface, an insert attached to the shank along this surface, a clip connected to the shank with a radial clearance and with the possibility of mutual displacement, and a pad of elastic material placed in the clip.

A disadvantage of the known device is that in the course of operation, bending loads are transmitted to the die guide columns, since the interaction between the shank and the spherical liner is not along a line, but at a point, and a gap occurs between the shank and the spherical liner.

The purpose of the invention is to exclude the transfer of bending loads to the guide columns of the punch.

This is achieved by the fact that the attachment unit is equipped with spring-loaded latches located in radial grooves made in the flange of the shank and a spherical insert, and a rotary ring, an opening between the holder and the flange of the shank and interacting with the latches. FIG. 1 shows the proposed site, a general view; in fig. 2 is a view A of FIG. one; in fig. 3 is a view B in FIG. one.

Knot fastening stamp to the press ram

10 contains a shank 1 with a flange, a spherical liner 2, a ferrule 3 placed on a shank with a radial clearance and the possibility of mutual displacement, a gasket 4 made of an elastic material, for example polyurethane, placed in the ferrule and shtyry 5

15 with spherical heads and rounded ends, supported by the heads on the gasket 4, and the ends - on the end of the flange of the shank, on this end we can see the annular groove with the rounded bottom. The valves 6 are located in radial grooves made in the flange of the shank and the spherical insert. The rotary ring 7 is installed between the holder and the flange of the shank and interacts with the latches.

The bevel on the working part of the valve is made within the self-locking angle. The rotary ring is moved with the help of the lever 8. The mount also contains an insert 9, a screw 10 and a separator for the pins 11.

The mount is used as follows.

in a way.

At first it is attached to the upper plate of the stamp (not shown in the drawing) through the holder, and then the stamp is attached to the press. In this case, before fastening the shank to the press ram by turning the ring 7, the valves are mixed to the center of the spherical liner so that the bevel on their working part does not interact with the lower edge of the groove on the flange of the shank. The insert 9 eliminates the rotation of the support.

After securing the shank on the press slide, the ring 7 rotates in the opposite direction and is fastened with the screw 10. In this case, the valves move from the center of the spherical liner until the bevel interacts with the lower edge of the groove on the flange of the shank. A rigid fixation of the mutual arrangement of the shank and the spherical liner is achieved, due to the position of the press ram. During the process of raising and lowering the slide between the spherical liner and the top plate, a gap is formed, which eliminates the transfer of bending loads to the guide columns of the stamp.

Claims (1)

Invention Formula Assembly of the stamp to the press ram on the author. St. No. 662211, characterized in that, in order to exclude the transfer to the guide columns of the punch bending loads, it is equipped with spring-loaded latches located in radial grooves made in the flange of the shank and a spherical liner, and a swivel ring installed between the yoke and the flange of the shank and interacting with the latches. Hg Video % 2 j