SU1417988A1 - Die for flashless die forging - Google Patents

Abstract

This invention relates to the processing of metals by pressure, in particular, to the design of dies for layerless die forging. The goal is to increase the reliability of shtampa and simplify its design. In the stamp, the backpressure assembly is made in the form of beams with protrusions on their end sections located on the side of each beam opposite to the wedge prism, with the possibility of interaction with the upper plate. The angle of inclination of the surfaces of the working elements relative to the horizontal plane is made greater than the angle of self-locking. In the operation of the punch, the compensation of the excess metal of the workpiece is carried out when the prism is raised due to the elastic bending of the beams. 5 il.

Description

(L

with

with

CX) 00

The invention relates to the processing of metals by pressure and can be used in forging and stamping production in the preparation of parts by unsealed hot stamping.

The purpose of the invention is to increase the reliability of the stamp and simplify its design.

FIG. 1 shows the stamp at the time of the final stamping of the forging of

billets with a volume equal to the volume of the poi for raising the prism 13.

forging; in fig. 2 - the same, with the ras-When lifting the slide press force

the position of the parts of the compensator is excessively deformed by the die punch 11 falls and the metal is viewed from above; in fig. 3 - the same

at the time of the final punching of the other beams 14 and 15 due to its elasticity occupy the same position. Prism 13, respectively, also occupies a single position.

cooking with a volume greater than the volume: forgings; in fig. 4 - the same, with the location of parts of the compensator excess metal; in fig. 5 shows section A-A in FIG. 3. The stamp for die-free forging (Fig. 1) contains sedimentary heads.

15

Other beams 14 and 15, due to their elasticity, occupy the same position. Prism 13, respectively, also occupies a single position.

From the turn, the prism 13 is provided with directional fingers 17, pressed into the upper plate 18. Next, the forging is ejected out of the ejector 2, the cavity 3 is pulled in the lower die matrix 19 of the press.

4, fixed by a holder 5 in the plate 6; FIG. Figures 1-5 show a stamp for single layer die forging with one-sided deformation. The principle of operation and design of the stamp with a double-sided deformatrix 7, fixed by a holder 8. Matrices 4 and 7 have locking surfaces 9 and 10, a deforming punch 11, a pusher 12, a wedge prism 13, beams 14 and 15 with protrusions 16 (Fig. 2).

The prism 13 has inclined surfaces B and C in contact with the counter surfaces G and D of the beams 14 and 15. The prism 13 is equipped with guide fingers 17 (Fig. 5) pressed into the top 25

Claims (1)

world similar to that described. Invention Formula A die for die-cut forging comprising a lower die plate and an upper die plate with a fixed surplus of metal and punch, as well as the compensator of the excess metal mounted on the side of the top plate opposite to the tool It has an 18 punch plate. To push 30 on it with a die tool, the forging condition has a press ejector 19. Upper 18 and lower 6 plates are movably connected by sleeves 20 and columns 21. The stamp works as follows. The preform after precipitation is heated on the non-working end of the punch of the wedge dies 1 and 2 is placed in the cavity of the prism and placed with interacting with the last counterpressure assembly with work elements that have a wedge surface prism, the workpiece is deformed while being different in order to increase the closure of the dies 4 and 7 by increasing the reliability of the punch and simplifying its transfer - instructions, backpressure knot. fulfilled Son 11, the strain force is transmitted in the form of beams with protrusions on their end portions located on the side of each beam opposite to the wedge prism 13. If the volume of the workpiece is capable of interacting with a prism larger than the forging, then it turns out to be an upper slab, and the angle of inclination of the turning forces is transferred to the deformations of the working elements relative to The horizontal plane is made larger than the self-braking angle. the stream of the lower matrix 4, fixed by the holder 5 in the lower plate 6. When the press slide (not shown) moves, starting the pusher 12 onto the supporting surface E (FIG. 3) of the central wedge punch 11. In this case, the force on the latter becomes sufficient to deform the elastic beams 14 and 15, the deforming punch 11 rises, forming a pocket for excess metal, entrains the central wedge prism 13. Since the prism has inclined surfaces in contact with the response surfaces of the elastic beams 14 and 15, is supported by their protrusions 16 to the supporting surface (Fig. 2), the latter are bent, thereby creating conditions on the deformed punch 11 falls and up5 Other beams 14 and 15, due to their elasticity, occupy the same position. Prism 13, respectively, also occupies a single position. From the turn, the prism 13 is provided with directional fingers 17, pressed into the upper plate 18. Next, the forging is ejected world similar to that described. Invention Formula A die for die-cut forging comprising a lower die plate and an upper die plate with a fixed there is a stamping tool on it, surplus of metal and punch, as well as the compensator of the excess metal mounted on the side of the top plate opposite to the tool there is a stamping tool on it,  non-working end of the punch wedge prism and placed with the ability F f Fiel