SU747404A3 - Hydraulic press for extruding metal - Google Patents

Description

The invention relates to the processing of metals by pressure, and in particular to structures of hydraulic presses for extrusion., G

Known hydraulic press for extruding metal, containing mounted on the frame of the power cylinder with a press stamp fixed to its plunger, a movable | θ container with a central hole, and also mounted on the frame with the possibility of reciprocating movement in the direction perpendicular to the axis of the press stamps, two-position | g tool board with a matrix fixed at one of its positions [1].

In the known device, at each position of the on-off tool board, a tool is installed for carrying out the technological process of extruding products.

A disadvantage of the known device g5 is that it is impossible to extrude products from billets obtained by the method of briquetting waste.

The purpose of the invention is the expansion of technological capabilities. gQ

In the proposed design, this goal is achieved due to the fact that it is equipped with a device for degassing the internal cavity of the container, made in the form of a disk with a channel and a vacuum unit connected to it, while the disk is mounted on the second position of the tool board with the possibility of interaction of its end surface with the facing to it by the plane of the container, and the channel in the disk is made overlooking a part of its mentioned end surface, limited by the contour of the hole in the container.

In FIG. 1 shows a general view of the proposed press) in FIG. 2 is a section AA of FIG. 1.

The hydraulic press contains a bed consisting of a front 1 and a rear 2 traverses pulled together by columns 3. A power cylinder 4 is mounted on the rear traverse 2, on the plunger 5 of which is fixed a stamp 6 with a plug 7. On the front 1 traverse there is a two-point tool board 8, the matrix 9 is fixed at one position and the disk 10 connected to the pipe 11 with a vacuum unit 12, consisting of a drive vacuum pump 13, a vacuum chamber 14 and a vacuum gauge 15, in the disk 10, channels 16 for connecting neniya of the container 17 with the vacuum system 12.

The hydraulic press operates as follows.

The blank is introduced into the opening of the container 17, after which the container 17 is pressed against the disk 10, and a press stamp 6 with a plug 7 is inserted into its opening, as a result of which the cavity of the container is isolated from the external environment. Using the vacuum installation 12, the internal cavity of the container 17 and the workpiece placed in it are degassed, after which the workpiece is compacted by the movement of the press stamp 6. Next, the container 17 is diverted towards the rear crosshead 2, the tool board 8 is moved one step and a matrix 9 is installed in place of the disk 10. The container 17 is moved all the way to the matrix 9 and, with the further movement of the workpiece press stamp 6, is pressed out through the matrix 9 ..

Claims (1)

Claim A hydraulic press for metal extrusion, comprising a power cylinder mounted on a bed with a press stamp fixed on its plunger, a movable container with a central hole, and a two-position instrumental board with a reciprocating movement in the direction perpendicular to the axis of the press stamp a matrix fixed at one of its positions, which is known to me that, in order to expand technological capabilities, it is equipped with a device for internal degassing the cavity of the container, made in the form of a disk with a channel and a vacuum unit connected to it, while the disk is mounted on the second position of the tool board with the possibility of interacting with its end surface with the container plane facing it, and the channel in the disk is made facing some of it said end surface bounded by the contour of the hole in the container. 25 Sources of information taken into account in the examination 1. Zholobov VV and Zverev G.I. Equipment for hydraulic press shops. M., jq Metallurgy, 1974, p. 35-40. Fig 1