SU776714A1 - Apparatus for stamping sheet parts - Google Patents

Description

The invention relates to the processing of metals by pressure, concerns, in particular, devices for punching L1i; 100 parts with elastic medium, and can be used in mechanical engineering for the manufacture of 5 parts of sheet materials.

The known devices for stamping sheet parts with elastic medium, containing a container where the forming medium is placed, and a substamp block consisting of a fixed plate (unified) and a retractable or removable: upper plate.

Known constructions of containers and, accordingly, of the substamp blocks (plates) presumably invariance of the dimensions of the excavation (in the projection in the plan) under the elastic forming medium, for example rubber, which at a nominal force of the punching mask (press, hammer, etc.) causes definite nominal 2C rubber pressure. in a container.

In production conditions, however, it is often necessary to stamp the parts under the pressure of an elastic medium that exceeds the resulting iomi. With a corresponding nominal: force of the punching machine, this is achieved by replacing the container and the podshtampovoy block with new ones with a smaller acceptable area of 30.

The aim of the invention is to expand the nomenclature and technological capabilities of machining parts by adjusting the nominal distance of the elastic medium by changing the usable area of the container and the lower unit block without replacing them with new ones with a modified area.

To achieve this goal, inserts are placed inside the honeyner at the walls. The lower oblique surface is supported on stops that are installed in the through slots of the container walls, and wedged in its outer side, and on the outside (MPO) him prefixes.

FIG. 1 shows a sectional view of the device in the initial and working position with inserts inserted in the container; in fig. 2 is a section A-A of FIG. one; ma fig. 3 - view B of FIG. one; in fig. 4 - the device in a section in an initial working position without inserts in the container with the prefixes located in a shtampovy block; in fig. 5 is a sectional view BB of FIG. four.

The device consists of a container / with through grooves in the lower part of the walls, inserts 2 R 3 with a lower beveled end surface installed inside the case near the walls, stops 4 with a lower mating surface and an obverse for fixing the wedges 5, elastic medium 6, plate 7 , located between the elastic medium and the bottom of the container, under-head plate 8, removable top plate 5 and side racks 10 and -I installed along the perimeter of the stamp plate.

The device readjusts as follows: when it is necessary to provide a pressure of an elastic medium exceeding the nominal one, the inserts 2 5 (or 2, or 3) are successively inserted into the container, which are fixed by inserting into the grooves in the wall sections of the container Ztori 4, the last stops relative to the container using wedges 5. Accordingly, in the underframe plate 8, the upper removable plate 9 and the side attachments 10 and 11 are removed (or only the upper removable plate 9 is installed, reduced in size and the prefix 10 or //). Then, together with the flexible medium 6i of reduced dimensions, insert the plate 7 into the container.

The proposed device provides, if necessary, an increased pressure of the elastic medium without the manufacture of separate campsets. In containers and sub-die blocks. This in turn allows

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reduce approximately, by 50-80%. metal consumption, reduce by 15-30%, the labor intensity of the manufacture of tooling.

Formula and 3 optics

A device for staples; KI sheet parts, containing a container With an elastic medium and a podshtampovy 1 block with a removable top plate, characterized in that, in order to expand the range and technological capabilities of processing parts, the container is equipped with inserts placed on its internal machines that have a beveled bottom surface, in contact with the stops installed in the OKVO.ZNY slots in the container walls and fixed by means of wedges located on the outer side of the container, and the sub-block block on the Zsta with prefixes along its perimeter.

Source and information taken into account during examination:

1. USSR author's certificate No. 338287, cl. B 21 D 26/02, 01.12.69 (prototype).

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Claims (1)

Claim A device for stamping sheet parts containing a container with an elastic 10 medium and a sub-stamp block with a removable top plate, characterized in that, in order to expand the range and technological capabilities of processing parts, the container is equipped with inserts 15 on its inner walls having a beveled bottom surface in contact with the stops installed in the through grooves in the walls of the container> and fixed by means of wedges 20 located on the outside of the container, and the sub-stamp block provides wives installed on its perimeter prefixes. 25 Source of information taken into account during the examination: 1. USSR Copyright Certificate No. 338287, cl. In 21 D 26/02, 01.12.69 (prototype). FIG. 4 \ B-8 FIG. 5