SU403474A1 - COMBINED STAMP FOR CUT-UP, EXTRACTION AND TRIMMING OF HEIGHT ALLOWANCE DETAILS - Google Patents

Description

one

The invention relates to the processing of metals by pressure, in particular, to strains for deep drawing.

There is a known stamp that performs the operations of cutting the workpiece, stretching and trimming the height of a part in one stroke of the press, containing a die-die, die-cutting die, a die-out die with a rigidly fixed cutting ring on it, and a folding holder, under the action of a buffer, creating pressure force.

In order to ensure the removal of the stamped part from the exhaust punch, the cut ring is installed with the possibility of axial mode 1, relative to the exhaust punch under the action of the pushers.

The drawing shows the described stamp, General view.

Ots contains the top plate 1, the ejector 2 and the punch-matrix 3, and the lower part of the puller is the puller 4, the cutting matrix 5, the exhaust punch 6, the folding holder 7 and the cutting ring 8. Between the folding holder 7 and the cutting ring 8 there is a spring 9. The folding holder 7 is under the action of the pushers 10, supported by a buffer device (not shown in the drawing) and provided with an annular collar in the middle part. All parts of the lower part of the belt are assembled at the base of And, to which screw 12 is attached to the punch 6.

The stamp works as follows. A billet in the form of a nolosa or ribbon (not shown in the drawing) is placed on the cutting matrix 5, and the lowering of the upper part of the chip-punch-matrix 3 cuts down the contour of the billet and produces it. Moreover, the folding holder 7, and with it the trimming ring 8, on which the spring 9 presses, sinks to .MOMeirra when the lower plane of the trimming ring reaches the flange of the punch 6. With this, the distance from the upper plane of the punch 6 to the edge of the trimming ring 7 will be equal to the height of the finished part. Punch-matrix 3, continuing to drop,

separates the trimming allowance provided for the height of the part to be stamped.

With a scraper, all its parts return to their original position. Moreover, the folding holder 7 lifts on

The matrices 5 are annularly diverted from cutting, and the trimming ring 8 under the action of the pushers 10 removes the part from the punch 6 and raises it to the plane of the die, from where it is removed,

stripes or tapes.

Subject invention

Combined chip for cutting the workpiece, stretching and trimming the seam allowance along the height of the part containing the cutting matrix,

3

punch matrix, exhaust punch, folding holder mounted on movable pushers, and cut ring, characterized in that, in order to ensure removal of the stamped part from the exhaust Poapson, the cut ring is mounted with the possibility of axial movement relative to the exhaust pupson under the action of pushers .