SU979002A1 - Apparatus for hydrostatic sealing of parts - Google Patents

Description

The present invention relates to the processing of metals by pressure, and more specifically to equipment for volumetric hydraulic pressing of parts or blanks obtained from metal powders.

A device for hydrostatic pressing of parts is known, comprising a chamber filled with a working medium associated with a high-pressure pump into which the sealing piece 1 is introduced.

Because of the need to install, dismantle the entire installation when loading and unloading parts and slowly increasing the pressure inside the working chamber to the required value, the known device does not satisfy the conditions of high-volume and jj accoBoro production due to low productivity.

The closest technical solution is a device for hydrostatic pressing of parts, comprising a chamber with a working fluid into which the compression part is inserted, and a plunger for creating a high pressure chamber 2.

This device does not allow loading and unloading of backdoors.

parts using the simplest manipulator with a minimum number of interoperable movements, for example, with three movements.

The aim of the invention is to increase productivity by mechanizing the loading and unloading of parts.

This goal is achieved by the fact that the device for hydrostatic

10 of the seal of parts, comprising a chamber with a working medium and a plunger, is provided with an additional chamber placed on the side of the plunger working end with an aperture chamber

15 in the wall connecting the cavity with the cavity of the container chamber; the device can be equipped with a lodgment fixed on the working end of the plunger, and an additional chamber

20 performed in it.

The drawing shows a general view of the device.

The device for hydrostatic pressing includes a chamber 1 for working fluid 2, a band 3. For creating an operating pressure in the chamber, there is a plunger 4 on which a hollow cradle 5 is fixed, fixed by means of wines 30 and 6 welded to the plunger.

In order to evacuate the air from chamber 1 and the cavity of the lodgement 5, when the plunger 4 is immersed in the chamber in the lodgment 5, holes 7 are made, which facilitate the rapid filling of the cavity of the lodgment 5 with the working fluid and pressure relief.

The plunger 4 is attached to the slider 8, and the shielded working chamber 1 to the table 9 of a crank or hydraulic press. In order to mechanize the loading and unloading of parts, the fixture is equipped with a manipulator 10 serving it with a conveyor li of feeding the pressed parts 12 placed in the hopper 13.

The device for hydrostatic pressing works as follows.

The initial part 12 from the hopper 13 is captured by the manipulator 10 and is transferred to the working area of the device, where it falls into the cavity of the lodgement 5. Then the press automatically turns on the working stroke, the plunger 4 with part 12 in the lodgment 5 moves into the working chamber. He first enters the conical and then into the cylindrical part of chamber 1 and locks a certain volume of working fluid, creating a predetermined pressure in it.

After compacting the material of the part 12, the plunger 4 together with the lodgement 5 returns to its original position, at which the part 12 is gripped by the manipulator 10 and transferred from the working area of the device to the conveyor 11, which moves the workpiece to the place of the next technological operation.

The presence in the device of the lodgement simplifies the loading and unloading of parts, increases the productivity of the device, allows the use of simple manipulators for mechanizing the supply of blanks to the working area of the device and unloading.

The use of the described device in production allows an increase in productivity by 65%. From its use in the production of blanks of cutters from the powder of the fast-cutting machine at the enterprise, an annual saving of 3.7 thousand rubles is expected.

Claims (2)

1. A device for hydrostatic compaction of parts, comprising a chamber with a working medium and a plunger, characterized in that, in order to increase productivity by providing the possibility of mechanizing loading and unloading operations, it is equipped with an additional chamber located on the side of the working end of the plunger holes in the wall connecting its density with the density of the container chamber. 2. The device according to claim 1, about 1 ton (and that it is provided with a lodgment fixed on the working end of the plunger, and an additional chamber is made in it. Sources of information taken into account in the examination 1. Fedorchenko I.M. et al., Fundamentals of Powder Metallurgy, Kiev, Publishing House of the Academy of Sciences of the Ukrainian SSR, 1963, p. 203, 2. Kolpashnikov A.I. et al. Hot hydraulic pressing of metallic materials, Moscow, Mashinostroenie, 1977 p. 240 (prototype).