SU1286336A1 - Device for attaching die to press ram - Google Patents

Abstract

The invention relates to the field of press-forging equipment, namely, devices designed to attach a die to a press ram, and it provides an increase in labor productivity by automating the fastening process. The device contains a clamping jaw (K) 5 installed in the slider (P) of the press with the possibility of reciprocating movement in the horizontal plane from the actuator 2 relative to P, in which a vertical hole with protrusions (B) 7 on its inner surface is made. At the free end of the shank 3 of the stamp 4, a rectangular prism 8 is installed with a beveled base 9 and vertical grooves 10 with dimensions corresponding to size B. The upper surface B is made parallel to the oblique base 9 of the prism, and the bottom is placed at an angle to the end surface of the prism 8. down B 7 clamping K interact with the bottom surfaces with the prism and, compressing the package of springs 14, retract K to the right. Thereafter, B 7 is positioned against the grooves 10 of the prism. The prism passes freely through the vertical hole K. Further, B comes out of the a groove, and the beveled base 9 rises above B clamping K and the spring pack shifts K to the left. In the upper surfaces they engage with the beveled base 9 and secure the stamp 4 on the P. 5 Il. (Oh (L

Description

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The invention relates to press-forging equipment, namely, devices designed to fasten a die to a press ram.

The purpose of the invention is to increase labor productivity by automating the process of attaching a punch to a press ram.

FIG. 1 shows a device, a section, at the moment of approach of the press ram to the stamp; in fig. 2 - the same, at the moment of stamping; in fig. 3 - the same, at the moment of shuffle, of the die shank through the hole in the clamping block; in fig. 4 is a section A-A in FIG. 3; in fig. 5 - protrusions on the inner surface of the hole in the clamping block.

The device contains a press mounted in the slider 1 with the possibility of reciprocating mixing in the horizontal plane from the drive 2 relative to the slider 1 and interacting with the shank 3 of the stamp 4 4, in which a vertical hole is made

6 with protrusions 7 on its inner surface, while the free end of the shank 3 of the stamp 4 is made in the form of a rectangular prism 8 with a beveled base 9 and with vertical grooves 10 on its side surfaces with dimensions corresponding to the dimensions of the projections 7 of the clamping pad 5, the upper surface 11 protrusions

7 clamping pads 5 is parallel to the beveled base 9 of the prism 8, and their bottom surface 12 is placed at an angle to the end surface 13 of the prism 8.

The device also contains a package of springs 14 assembled on the mandrel 15 and resting on the cover 16. For convenience of repair and replacement of the assemblies and parts 2, 5, 7, 14, 15 and 16 they can be placed in the housing 17 fixed on the slider 1 with screws 18

The device works as follows.

In the initial position, the press slider 1 is in the up position. The package of springs 14 pushes the clamping block in the direction of the actuator 2 until it stops. The stamp 4 is fed to the press table and secured to the bottom plate (not shown). After that, the slider 1 makes a single move. When the slider moves, L- protrusions 7 of the clamping block over: 12, interact with the surface; - prisms 8 and, compressing the spring pack (-, clamping block

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5 to the right until the protrusions 7 are against the slots 10 of the prism 8.

After that, the displacement of the clamping block 5 to the right is stopped and the prism 8 freely passes through the vertical hole 6 of the clamping block, and the press slider 1 with its support surface sits on the upper plate of the stamp 4. In this case, the projections 7 come out of the grooves 10, and the bevelled base 9 of the prism 11 is located above the protrusions 7 of the clamping block 5 and the package of springs 14 shifts the clamping block 5 to the left.

In this case, the protrusions 7 by the surfaces 11 enter into engagement with the beveled base 9 of the prism 8 and secure the upper plate of the die 4 to the slide 1.

When replacing the stamp, the actuator 2 pushes the clamping block 5 to the right until it stops, the projections 7 of the pad and the prism 8 of the shank 3 disengage. The protrusions 7 are positioned against the grooves 10, and during the run of the slider 1 up, the press of the press and the top plate of the stamp 4 automatically disengage.

Compared with the known, the proposed device provides for automatic fixing of the stamp on the press ram, which increases productivity and safety of labor.

Claims (1)

Invention Formula A device for attaching a punch to a press ram, comprising a reciprocating horizontal movement from the drive relative to the ram installed in the press ram and interacting with the shank of the stamper, characterized in that, in order to increase productivity by automating the process of attaching the stamp to the press ram, in the clamping block there is a vertical opening with protrusions on its inner surface, and the device is equipped with tovika stamp rectangular prism with sloping base and with vertical grooves on its side surfaces dimensions corresponding to the dimensions of the projections of the clamping pad, the top surface of the projections of the clamping pads is located parallel to the chamfered base of the prism, and their bottom surface that serves an angle to the end surface of the prism. P FIG. 2 8/377 ig.Z / Fy