SU776711A1 - Apparatus for producing branches - Google Patents

Description

(54) DEVICE FOR MAKING OUTLETS

one

The invention relates to the processing of metals by pressure and can be used in mechanical engineering for flanging holes in pipe billets.

A device for manufacturing branches on pipes, containing matrixes in which high pressure is created, and pulsons compressing the workpiece in axial direction 1.. . ..... ,, .., - The disadvantage of this device implies that it is impossible to get taps on long blanks, the high cost of equipment and the laboriousness of the process.

It is also known a flanging device comprising a hollow punch, a die and a cone mounted coaxially with the punch, 2.

The disadvantage of this device is the need to use a cone-moving drive, which greatly complicates the design of the device.

The purpose of the invention is to simplify the design and increase productivity.

To do this, the device is equipped with a riser-molded in the cavity of a hollow punch, & a contact in contact with the cone, and a housing, in the internal cavity of which a hollow punch is hermetically installed with the possibility of axial movement.

The drawing schematically shows the proposed device.

The device consists of a housing 1, a split matrix 2, a hollow punch 3, a ground 4, a cone 5, a spring 6.

The work is carried out in the following sequence | The cavity L is filled with a working fluid. At the same time working on B-epxjHOCTb hollow punch is placed

10 inside the cavity of the corpus /, a-portsgenbzayy - the upper (according to the drawing) position is worn.

The preform 7 with the preformed opal is inserted into the matrix 2. A housing with a die is inserted inside the preform.

15 punch and porshnem. Then a cylindrical part of a cone 5 is inserted into the hole of the workpiece, the end of which is in contact with the mixture 4. The conical part of the cone contacts the edge of the hole in the workpiece.

20 A pressing force P is applied to the cone 5, under the action of which the cone compresses the edge of the workpiece opening in a radial direction and increases the plasticity of the material.

25

As you move, the cone presses on - the nipple 4, which moves deeper into the body. At the same time, displace the liquid from the cavity A and press on the TOP of the paison 3. Move up, the punch beads

Ev hole. In necessary cases for

Claims (1)

Claim Device for manufacturing bends, comprising a hollow punch, a matrix and a cone mounted coaxially with the punch, characterized in that, in order to simplify the design and increase productivity, it is equipped with a piston in contact with the cone and a housing located in the cavity of the hollow punch, in the inner the cavity of which is hollow punch hermetically mounted with the possibility of axial movement.