SU469516A1 - Stamp successive action - Google Patents

Description

one

The invention relates to a tooling for cold sheet forming, in particular to dies for cutting out stator and rotor plates, and can be used in the field of engineering.

The well-known stamp for cutting, the stator and rotor plates contain an upper plate, an upper plate, a lower plate with fixed matrices and columns, catchers, a holder of punches, guided by the said columns, which also employ them. for stripper, spring loaded relative to bottom plate.

In order to increase the durability and reliability of the punch and to eliminate the influence of the transverse components of their press efforts, the proposed stamp is provided with pushers that interact with one end with the holder of punches, the other with the press slider, and the upper plate is made with holes for pushers and rigidly zana with columns. To secure the workpiece to the mirror of the matrix, as well as to remove material from both the punch and from the catcher, the holder of the punch can be provided with pins that interact with the springs of the puller placed in containers, preferably in pairs, mounted on the puller and placed in in the bottom plate of the hole x.

FIG. 1 shows 0 1 stamped, view in plan; pas figs. 2 the same, the section along A-A to pa of FIG. one; in fig. 3 shows a section but BB in FIG. one.

The stamp comprises a lower plate 1, rigidly connected to a press table or a substamp plate (not shown), and an upper plate 2, which is firmly connected to the lower plate by means of columns 3, sleeves 4 and 5 bolts 5. The upper plate has holes for the pushers 6 and 7. The top plate has holes for the passage of the pushers 6 and 7. The pushers 7 are spring-loaded with springs 8, which give a stable position to the holder of 9 punches. The latter is connected with columns 3 with the aid of the sleeves 10 and has the ability to move relative to the mirror of the mattress 11 on the separators with balls 12. The holder of the punches is provided with pins 13, which act on the springs 14 and through the supporting disks 15 on the springs 16. The springs 14 and 16 are located in the containers 17 and are adjusted by the plugs 18. The containers 17 are located in the corresponding openings of the puller 19. closed captive screws 23 on the mirror array are limiting upward movement of the extractor during removal of the workpiece from the punch

24. The remover has the ability to slide along the columns with ground sleeves 25. To fix the workpiece on the mirror, the catchers serve 26 catchers, spring-loaded springs 27, located in sleeves 28, and adjustable by plugs 29. The height of the catcher is adjusted by nuts 30. The sleeves are guided by the bushes 22 serving as a restriction on the upward movement of the puller. Between the puller 19 and the mirror of the die there are springs 21, which in the free state of the die hold the puller at some predetermined distance from the mirror of matrix 11. The press slide equipped with a plate 31 acts on the pushers 6 and 7.

Works stamp as follows.

A metal strip or mite enters the stamp in the direction of the arrow B. The stamp is at this time uncovered.

In the free state, the beads of the puller 19 abut against the beads of the sleeves 22, and the puller is at some distance from the matrix of the matrix, which is structurally given. The holder of the punches is also held in the upper position by means of springs located in the container 17, by means of the pins 13 "located at some distance from the matrix mirror, also given structurally. Pushers 6 and 7 with their lower ends abut against a block of cutting parts. When, under the action of the press ram, the pushers 6 and 7 begin to act on the upper block of the cutting parts, it begins to move downward, and since the springs 14 of the next springs 21, the catchers 26 exit the puller 19 and fix the workpiece pia to the mirror of the die through the technological holes When the slider continues further, when the springs 16 come into effect, the stripper presses the strip against the mirror of the die, the punches 24 descend below the stripper and punch holes in the material.

The return stroke of the slide under the action of the pins 13, working from rigid springs 16, the puller 19 removes the workpiece from the punches 24. At the termination of the action of the springs

16, the billet associated with the catchers will, together with the puller, rise under the action of the springs 21. After the puller 19 reaches the ribs of the bush 22 with its shoulder, the springs 14 will continue to lift the upper cutting unit and the puller 19 will remove the billet from the catchers 26, then the upper unit of the cutting parts will take its original position.

Nredmet of the invention

Claims (2)

1. A successive stamp for processing sheet material containing the upper plate, the lower fixed plate. with matrices and columns fixed in it, catchers, holder of punches, guided by said columns, which also serve as guides for a stripper, spring-loaded relative to the bottom plate, with the aim of increasing stability and incidence the work of the stamp, it is equipped with pushers that interact with one end with a holder of poins, the other with a press ram, and the top plate It is made with holes for pushers and rigidly connected with kolopka. 2. A stamp according to claim 1, characterized in that, in order to secure the workpiece against the matrix of the matrix, and also to remove the material Both with punches and catchers, the holder of punches is provided with pins that interact with the stripper springs, neschenchennymi in containers, advantageously in pairs, mounted on the stripper and located in the holes made in the bottom plate. 29 28 JO / / rig 2 7 j / I / /  3