SU1371739A1 - Arrangement for stamping with elastic medium - Google Patents

Abstract

The invention relates to the field of metal forming and can be used in mechanical engineering for sheet metal stamping with elastic medium. The purpose of the invention is the expansion of technological capabilities by increasing the versatility of the device. The container 1 is made up of separate sections 7, installed with the possibility of movement in the axial direction one relative to another and spring-loaded to the upper plate. During the working stroke, part of the sections 7 that come into contact with the workpiece 9 stops. Another part of the sections continues to descend until the matrix 5 is touched. The design of the stamp allows to create a closed volume for an elastic medium, regardless of the shape and size of the workpiece 9. 2 Il. S (l

Description

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The invention relates to the processing of metals by pressure and relates to devices for stamping with an elastic medium.

The purpose of the invention is the expansion of technological capabilities by increasing the versatility of the device.

FIG. 1 shows the proposed device, a general view; FIG. 2 is a section A-A in FIG. one.

The stamp contains a container 1 with an elastic punch 2, a movable plate 3, carrying a plunger A cooperating with a punch 2, a matrix 5 mounted on the bottom plate 6. The container 1 is made composite of sections 7 installed in the movable plate 3, for example, on the shoulders and spring-loaded to it, for example, with the help of an annular elastic spring 8. In addition, the workpiece 9 is indicated on the drawings.

The stamp works as follows.

A strip blank 9 is placed on the matrix 5. The upper part of the stamp is lowered, while part of the sections 7 of the container 1 ends up on the blank 9 and the remaining sections 7 stop to continue lowering, shifting relative to the first, until it stops in the matrix 5 (Fig. 1). Thus, the elastic punch 2 is in a closed volume. When the latest movement of the plate 3 with the plunger 4 down, the latter interacts with the elastic punch 2, which affects the workpiece 9 and deforms it over the matrix 5. Being in a closed volume, the elastic punch 2 allows the development of significant pressures, i.e. performance of various operations in a large technological range. Moreover, the volume of the elastic punch 2 also closes when stamping narrow long parts (Figs. 1 and 2), and when local punching of elements on large panels, and at sequential punching for several press strokes, etc.

It is possible to manufacture the container 1 not only round, as in FIG. 1 and 2, but also various other forms (rectangular, square, etc.). Perhaps not complete, but partial execution

container 1 sectional. For example, making two opposite walls of a rectangular container 1 sectioned and the other two solid allows the device to be used.

for stamping parts from a strip.

The proposed device in comparison with the known has more technological capabilities, because it has a higher versatility.

Claims (1)

Invention Formula A device for stamping an elastic medium containing a lower plate with a matrix rigidly fixed on it and an upper plate carrying a container with a plunger and an elastic punch arranged in its cavity, characterized in that, in order to expand technological capabilities by increasing the versatility of the device, the container is made of composite sections, axially displaceable, one relative to the other and spring-loaded to the top plate. q) uz.2.