RU55653U1 - DEVICE FOR CUTTING PREPARATIONS AND CUTTING-PUNCHING DETAILS BY ELASTOMER - Google Patents

Abstract

A device for cutting a workpiece and cutting - punching a part with an elastomer relates to the field of metal forming, in particular sheet stamping, and can be used to simultaneously cut a workpiece and cut a part, punching holes and grooves in one press stroke.

The essence of the utility model: a device for cutting a workpiece and cutting-punching a part with an elastomer consists of a container with an elastomer (polyurethane or rubber) and a metal plate to which the shank is attached, a die plate, on which a cutting ring and retainer are mounted, as well as two guide pins and a thrust pin extending into a recess in the container.

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Description

A device for cutting a workpiece and cutting - punching a part with an elastomer relates to the field of metal forming, in particular sheet stamping, and can be used to simultaneously cut a workpiece and cut a part, punching holes and grooves in one press stroke.

A device is known for cutting blanks and punching parts, consisting of a rigid punch and a rigid matrix (Romanovsky V.P. Handbook of cold stamping. - 6th ed., Revised. And add. - L .: Engineering. Leningrad. -nie, 1979, p. 354, tab. 165).

The disadvantage of this device is the complexity of its manufacture, as it requires punches and dies for cutting parts along the contour and punching holes, and the high cost of production.

Closest to the proposed device is a device for cutting parts from sheet materials, containing a container with an elastomer and a metal plate, to which a shank, a sub-die plate are fastened (Komarov A.D., Romanovsky V.P. Cutting parts with polyurethane. - L .: LDNTP , 1986, p. 13, Fig. 3).

This device has disadvantages, which are that it does not allow you to cut the workpiece along with cutting parts. Therefore, blanking is carried out separately on additional dies, and only after that a part is cut from the blank on this device. This leads to an increase in equipment costs and time for the manufacture of parts, which reduces labor productivity.

The task was set: to increase labor productivity by cutting the workpiece and cutting - punching the part in one press stroke.

The problem is solved due to the fact that in the proposed

a device for cutting a workpiece and cutting - punching a part with an elastomer, containing a container with an elastomer (polyurethane or rubber) and a metal plate to which a shank, a die plate, according to a utility model, are attached, a cutting ring with a sharp edge on the outer surface and bevel is mounted on the die plate on the inner surface and the clamp of the cut-out template, as well as two guide pins and a thrust pin that goes into the recess in the container.

The essence of the utility model is illustrated by drawings, in which Fig. 1 shows a sectional view of the device at the initial stage, in Fig. 2 - in an intermediate stage, in Fig. 3 - at the final stage of the stamping process.

The proposed device consists of a container 1 with an elastomer 2 and a metal plate 3 connected to the shank 4. A cut-out template 6, a retainer 7 with screws (not shown conventionally) and a cutting ring 8 are mounted on the sub-plate 5 and a strip of material 9 is fed between two guides pins 10 to the stop pin 11.

The device operates as follows. A cut-out template 6 is installed on the sub-stamp plate 5, which can have a different shape (round, rectangular, ellipse), as well as holes of various configurations, and is centered by a latch 7, which can be used as a departure from the first part. A strip of material 9 is fed between two guide pins 10 to a stop pin 11 (Fig. 1). After turning on the working stroke of the press, the container 1 is lowered down using two guide pins 10 and a stop pin 11 to precisely align the inner edge of the container with the outer edge of the cutting ring, and the blank is cut down (Fig. 2). With further lowering of the container 1, the elastomer 2 pushes the central part of the workpiece into the hole of the cutout template 6, and also presses the edges of the workpiece to the latch 7. In order for the waste material to slide better from the cutting

ring 8, on its inner surface there is a chamfer. Thus, the part is cut with the simultaneous punching of all holes.

At the end of the working stroke of the press, the container 1 rises (Fig. 3), and the strip of material, the finished part and the waste material are removed.

Claims (1)

A device for cutting a workpiece and cutting - punching a part with an elastomer, containing a container with an elastomer and a metal plate to which a shank is attached, a die plate, characterized in that a cutting ring with a sharp edge on the outer surface and a chamfer on the inner surface and a retainer are mounted on the die plate cut-out template, and also installed two guide pins and a thrust pin, which goes into the recess in the container.