SU1433560A1 - Die for forming parts from sheet materials - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in various fields of engineering - in the manufacture of parts from sheet blanks. The goal is to increase labor productivity through the mechanization of the wedging of the die wedging. The estimated amount of metal balls 6 is placed in the container 4. When the inner slide 24 is lowered with gnablon-nuance 2, the product is formed. The bottom 5 of the container is convex. The balls move to the periphery. In this case, an equal stretch of both the cylindrical and bottom parts of the product is achieved. As the pressure increases in container 4 above the allowable, the wedging mechanism is triggered. The rod 9 is sunk into the hole 12. The calibrated shock absorber 10 is compressed and opens the inclined channels 13. The excess nia- rpkov falls into the annular groove 14 and through the hole 15 is taken out of the limits of the pipe. The pressure in container 4 decreases. The shock absorber 10 returns the rod 9 to its original position and closes the channels 13. 2 Cp. f-ly, 1 ill. i (L

Description

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; The invention relates to the processing of metals by pressure and can be used in various parts of the machine building industry in the manufacture of parts from sheet blanks.

The purpose of the invention is to increase labor productivity through mechanization: the process of wedging the stamp. ; The drawing shows a stamp for forming parts from sheet materials, mounted on a double action press, a slit.

A stamp for forming sheet material parts contains an upper plate with a punch template 2 and shank 3 fixed on it, container 4, the bottom 5 of which is made convex and smoothly aligned with the side walls.

The container 4 is filled with a mold element, in which metal balls 6 with a diameter of 0.5 ... 3 mm are used, and pressed into the holder 7, which is mounted on the die plate 8.

The rod 9 of the wedging mechanism is provided with a calibrated shock absorber 10, bored on the sleeve 11 and located JHbiM in the through hole 12, made in the bottom of the container and the plate of the stamp 8 along the central axis.

The stamp is equipped with a system of removal of megallic balls, made in the form of

sloping channels 13, soobsh, ayush, their through- hole 12 with an annular groove 14 ic of smoothly varying depth, in the zone with

The maximum depth of which is made of I-hole 15 to remove metallic: balls.

In the holder 7, the matrix 16 is installed, and along its perimeter there are clamps 17 for centering the workpiece 18. On the intermediate plate 19

 through the centering ring 20 is fixed clamping ring 21.

The stamp is mounted on a double-action press, its lower plate 8 is attached to the substamp plate 22 of the press, the intermediate plate 19 to the outer slide 23, and the upper plate 1 with the die pattern 2 via the shank 3 to the inner slide 24.

The stamp works as follows.

The estimated number of balls 6 will be prevented into the internal cavity of the container 4, the forging billet 18 is installed between the latches 17, then, lowering the outer slider 23 of the press, it is pressed to the matrix 16 by the ring 21. products. In contact with the workpiece 18 balls 6

0

five

five

five

50

40

45

the latter begin to mix in the container 4 from the bulge to the periphery and compress it at the end of the stroke along the template-punch 2. In this case, both the cylindrical and the bottom parts of the product are uniformly stretched.

As the pressure increases in container 4 above the allowable, the wedging mechanism is triggered. At the same time, the rod 9 is embedded in the hole 12, compressing the shock absorber 10, and opens inclined channels 13 through which the extra balls fall into the annular groove 14 and through the hole 15 are pulled out of the stamp.

After a certain number of balls 6 are removed from the conveyor 4, the pressure in its internal cavity decreases, the shock absorber 10 returns the rod 9 to its original position and closes the channels 13.

Technical and economic advantages of the stamp are due to the increase in labor productivity due to the mechanization of the stamping process.

Claims (3)

1. A mold for forming parts from sheet materials containing a template-punch, a container with a bottom for accommodating the working medium in the form of metal balls and a wedging mechanism made in the form of a rod mounted in a through-hole made in the body of the container, differing in those. That, in order to increase labor productivity due to the mechanization of the process of wedging the punch, it is equipped with a slab placed under the bottom of the container with a central hole, a calibrated shock absorber mounted on the rod. and wedging, and a system of removing metal balls, and the through hole of the container is made in its bottom and together with the central hole in the plate. 2. A stamp according to claim 1, characterized in that the system for removing metal balls is made in the form of a stamp placed in the slab on the side facing the container, an annular groove with a depth smoothly varying from the maximum to the minimum inclined channels made in the bottom of the container and communicating its through hole with the said groove, and the holes in the plate of the die located in the area of the groove with the maximum depth. 3. A stamp according to claim 1, characterized in that the bottom of the container is convex and smoothly mated with its side walls.