SU1680414A1 - Buffing arrangement - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to buffer devices for edging dies. The purpose of the invention is the expansion of technological capabilities and increased productivity. The buffer device contains a plate, studs, washers, cylindrical springs, pushers, and bushings. Detail with burr placed in a cut stamp on the retainer, affect it with a punch, which transmits the cutting effort through the retainer to drench the details. Edges are trimmed and trimmed. 1 z.p, f-ly, 4 silt

Description

The invention relates to devices for trimming scrap forging and can be used in various fields of mechanical engineering.

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

Fig 1 schematically shows a device; in fig. 2 is the same, top view, in FIG. 3 shows examples of placing on the buffer device of two diverse parts; FIG. 4 - loading schedule of compression of springs of the buffer device

The buffer device (Fig. 1) is intended for trimming the scrap in the cutting stamp, including the punch 1, mounted on the press slide (not shown), the die 2 with the cutting edge 3, the clamp 4 with the engraving 5, on which the part is placed during trimming. the device includes pushers 6, installed in the holes, 7, to which the lower washer 8 is fixed by studs 9, are screwed - i h h jj threaded holes 10. with an emphasis. L. Spike ov 9 9-to-butt 11 plate 7, the matrix 2 is fixed on the support. Fasteners

the studs 9 are missed into the holes of the upper movable washer 12, pressed by the cylindrical springs 13, centered by the sleeves 14, having the possibility of displacing the maximum allowable compression of the springs by the amount H.

The buffer device operates as follows.

Detail 15c flare along the contour is placed in the engraving of the working part 5 of the latch 4 and serves replaceable punch 1 down on the part 15. Replaceable punch 1 presses on the part 15, part 15 - on the latch 4, the latch 4, in turn, on the plungers 6, which transmit pressure through the upper washer 12 to the cylindrical springs 13, the cylindrical pushers 6 transmit the pressure of the movable upper washer 12 not to the entire end surface, but over the annular surface, the internal diameter of which is the diameter of the holes in the washer 12 to the stud. In the course of the process, the punch 1 lowers the retainer 4 with the part 15 prior to the contact of the rim with the cut edge 3 of the interchangeable die 2, the rim is trimmed and the part 15 is edited, after which the interchangeable punch 1 returns to

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running position. Under the action of the cylindrical springs 13, the upper movable washer 12, through the pushers 6, acts on the retainer 4 with the part 15 and pushes it out of the replaceable die 2. The part and the scrap are removed from the tool area and the cycle is repeated

Claims (1)

Claim 1. Buffer device comprising a plate with holes for pushers and studs, cylindrical springs located between two washers, attached to the plate by studs passing through the holes in the washers, as well as pushers placed in the holes of the plate and resting on the top puck, different 0 five that in order to expand the technological possibilities of increasing productivity, the studs are made with a diameter less than the diameter of the pushers, the holes in the plate under the pusher and the studs are made of the same diameter, in both washers aligned with the holes of the plate, the holes are made for studs smaller than the diameter of the holes coaxial slabs. 2 An apparatus according to claim 1, wherein the springs are provided with sleeves with a hole diameter of a large diameter of the studs, and the washers are made with blind holes in which said sleeves are disposed with the possibility of vertical movement relative to the washers. 6 15 FIG. Rpredv