SU1697938A1 - Stamp for working large-size workpieces - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to dies for the processing of large parts. The purpose of the invention is the expansion of technological capabilities and increased reliability. During the course of the upper plate 1 downward, the wedge 15 moves the locking element 13 to the left and thus fixes the position of the console of the hard stripper 10. In this position, the holes in the part 18 are punched 3. With the return stroke, the wedge 15 comes out of contact with the locking element 13, which using the spring 12 is moved to its original position. 5 il.

Description

The invention relates to the processing of metals by pressure, in particular to dies for the processing of large parts.

The aim of the invention is to expand technological capabilities and increase reliability.

Figure 1 presents the proposed stamp, top view; figure 2 - bottom plate, top view; in FIG. 3, a sectional view in FIGS. 1 and 2; figure 4 - section bb in figure 1 and 2; figure 5 is a view along arrow b ne figure 4.

The stamp contains movable 1 and fixed 2 plates, a punch 3, a knife 4, dies 5 and 6 installed in the holder 7, protivopolozhim 8, stripper 9 and a hard cantilever puller 10 with a locking device made in the form of springs 11 and 12 figurative locking element 13, made in the groove of the fixed plate with the possibility of rotation around the axis 14, installed in the casing 7 and interacting with the wedge 15 and the pusher 16 installed in the holder 17. located in the plate 1.

The stamp works as follows. The pad plate 18 is fed into the stamp from the side of the locking device.

When running down the pusher 16, pressing on the locking element 13, rotates it around the axis 14, and it occupies a vertical position. With further lowering of the top plate 1, the wedge 15 moves it to the left (see figure 4). Puller 10 is fixed. The holes are punched with punches 3 and the workpiece 18 is cut from two sides with knives 4,

At the upward movement, the wedge 15 leaves the interaction with the bevel of the locking element 13. The spring 12 retracts the locking element

ABOUT

Yu

h y 00

Right, the Pusher 16 releases the element 13, which under the action of the spring 11 takes a horizontal position. When it is located at the level of the mirror of the matrix, it ensures unhindered part removal.

Thus, the locking device ensures the fixation of the puller 10, eliminates the possibility of its bending, skewing under shock loads, and thus increases the reliability of the stamp.

Claims (1)

Claims of the Invention A stamp for processing large-sized parts comprising a lower fixed plate fixed on it (die holder with dies for piercing holes and a rigid puller and a top plate with penetrative punches. In that, in order to expand the technological possibilities, and increase reliability, the stamp is provided with at least one cutting knife fixed in the top plate in front of the piercing punches, one cut-off matrix with anti-compressing, one clamping device placed on the front of the stamp and made in the form of a spring-loaded C-shaped locking element, mounted on an axis on an axis with the possibility of rotating in a vertical plane h a reciprocating movement in a direction perpendicular to the vertical plane and mounted on the upper plates e with the possibility of interaction with the C-shaped locking element of the pusher and the wedge, while the hard pick is made from the side of the front of the punch; in the bottom plate there is a groove for the C-obase zapooy element Fig T 8 4 3 W 9 5-5 , n 15 I 18 5 7 I $ u P 18 I FShZ Schi g 5