SU1333447A1 - Die for multitransition drawing - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in mechanical engineering in the drawing of parts of conical shape. The purpose of the invention is to increase the height of the parts to be stretched by providing a stretch from the periphery to the center. The stretching is carried out in several transitions, starting from the peripheral part of the blank 19-. Clamp-punches 4-6 are made with flanges from the non-working ends. Between the flanges of the clamping punches 4-6 installed removable gaskets 10-12. Studs 14 are rigidly secured with studs 14 that pass through holes made in flanges and gaskets 10-12. The first draw transition is carried out on a pressing punch 4 with all the pads 10-12. The next digging transition is carried out on the pressing punch 5, removing the gasket 10 and so on, and finishing the drawing on the punch 2, removing all the gaskets. 4 il. (L oo 00 Od F 4i .1

Description

one

The invention relates to the processing of metals by pressure, namely, dies for multi-pass drawing

The purpose of the invention is to increase the height of the parts to be pulled out by providing a pull in the direction from the periphery to the center.

FIG. 1 4 shows a stamp, longitudinal section (initial, intermediate and final position),

The stamp contains a matrix 1, a punch 2, a clamp 3, a punch-pressing 4-6 of the first, second, third transitions, respectively, inserting an annular shape 7-9 of the first, second and third transitions, respectively, of the clamp-punches 4-6 of the workpiece 10 (FIG. , 4) are mounted with the possibility of axial movement telescopically one inside the other with the formation of depressions between them. In the depressions formed by the clamping punches 4 and 5, 5 and 6, and also formed by the clamping punches 6 and the punch 2, there are placed annular inserts

forms 7-9. Clamp punch 4 opi (

It is mounted on the gasket 11, mounted on the flange of the enclosed 13 m-tube 5. The clamp-punch 5 rests on the gasket 11 mounted on the flange of the clamp-punch 6 "The clamp-punch 6 rests on the gasket 12 mounted on the bottom plate 13, the studs 14 and the supports 15 provide for 1Ы for connection with a buffer (not shown) adj; img3 3 and clamp-punches 4--6, on the peripheral part of which: holes 16 and sockets 17 are made; pre-sowing stage.

Position 19 on the drawings marked the workpiece.

The stamp works in the following manner: The clamp 3 is set by the buffer through the studs 14 and the supports 15 at the level of the punch 2, Workpiece 19:; on pin 3 in the slot formed by the collar 18; As the die moves, and 1 the peripheral part of the workpiece 19 is pressed n moves down together with the mat); she is 1 and the clamp 3. Punch 2, prisim-punches 4-6 and inserts 7-9, remain stationary and hold the central part of the workpiece 19, the first transition is pulled out. For extracting the second transition, insert 7 and gasket 11 and pe10 are removed from the stamp.

20

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supports are restored. 15 and studs 14 in the nest 7 clamp - punch. 4, The working surfaces of the presser 3 and the presser punch 4 are set at a height corresponding to the end of punching of the first junction. 9 to the clamp 3 and the clamp-punch 45 moves it relative to the fixed punch 2 and the clamp-ny ,,. Ansons 5 and 6, draws a second junction, LL draws a third junction, removes insert 8 from the punch. the clamping punches 4 and 5 set at a height corresponding to the end of the stamping of the second transition. When moving

25 of the matrix 1, its surface presses the workpiece 19 against the clamp 3 and the clamping punches 4 and 5, and moving it relative to the stationary punch 2 and the clamping punch 6, you produce a jpj pull of the third transition. To draw the fourth junction, insert 9, gasket 12 is pushed out of the die, and supports 15 and studs 14 are moved to pressure punch 6 sockets. Pressing surfaces 3 and pressure pins 4-6 are set at a height corresponding to the end of third pins. transition. When moving the matrix 1, its surface presses

.Q workpiece 19 to the clamp 3. Prizlm-pulsons 4-6 and, moving it relative to the stationary punch 2, the fourth transition is pressed,

, .jg Creating in the stamp design the ability to start drawing from the peripheral part of the workpiece allows to obtain parts with a higher height than in the Known pgamp, the deformation value is g. tsu on each transition is negligible.

Formula, invented by P;

Stamp for microtransition exhaust, comprising coaxially mounted punches and a die, covering the puncheon and the puncheon clamps installed telescopically between each other, and also located at the working end of each

Punch clamping ring inserts, characterized in that, in order to increase the height of the extrudable parts by providing a draw in the direction from periphery to the center, the punch clamps from the side, the non-working ends are made with flanges having coaxial

openings parallel to the punch axis of symmetry, and provided with removable pads installed between the flanges with openings aligned coaxially with the openings of the flanges and studs fixed in the clamp and passing through the openings in the flanges and pads.

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Claims (1)

Stamp for multi-junction hoods, containing coaxially mounted punches and a die, covering the punch and telescopically mounted punch clamps, as well as each Dog punch clamp ring inserts, characterized in that, in order to increase the height of the parts to be drawn by drawing in the direction from the periphery to the center, the punch clamps from the side, non-working ends are made with flanges having coaxial holes parallel to the axis of symmetry of the stamp, and equipped with removable ₅ spacers installed between the flanges with holes coaxially located with the holes of the flanges, and studs fixed in the clip and passing through the holes in the flanges and gaskets.