SU887051A1 - Apparatus for rotation extruding - Google Patents

Description

one

The invention relates to the processing of metals by pressure, in particular to the design of devices for rotary extrusion.

A device for rotary extrusion is known, comprising a housing with supporting cones arranged therein that cooperate with pressing elements, as well as a mechanism for adjusting the relative position of the supporting cones 1.

The purpose of the invention is to improve the quality of machined parts.

This is achieved by the fact that the device for rotational extrusion, comprising a body with supporting cones placed in it, interacting with pressing elements, as well as a mechanism for adjusting the relative position of the supporting cones, is equipped with a variable-speed actuator, and in the case with the possibility of axial movement and rotation a stop is installed a sleeve interacting with one of the NZ support cones, wherein the stop sleeve is kinematically connected with the variator.

In order to increase the reliability of operation, the stud is provided with a limit torque clutch.

FIG. 1 shows the proposed device; in fig. 2 — node 1 in FIG. one; on

FIG. 3 is a view A of FIG. I; in fig. 4 shows a kinematic diagram of the device.

The device includes a housing 1 with a micrometer nut 2, a bracket 3, support cones 4 and 5, a stop support 6, a stop sleeve 7, on the hub 8 of which a thread is made, a fixed sleeve 9 threaded on the inner surface, a gear 10, a coupling 11. Device equipped with 10 variable speed drive 12 and gear 13 with the number of teeth 2, interacting with the rail 14, mounted in the bracket 15.

Gearbox consists of a pair of conical

15 gears with the number of teeth z and Zz and a pair of cylindrical gears with the number of teeth Z4 and 25, with the last gear fixed on the hub 8 of the thrust hub 7.

20 The device operates as follows.

The device is brought to the workpiece 16, which is fastened on the clamp 17. The rotation of the micrometer nut 2 establishes

25 required position of the pressing elements. With the axial movement of the device, the movement is transmitted to the sleeve 7, due to which the latter is retracted from the support cone 5. Due to the axial component, the force of the rotary extrusion is effected by

standing preload of the support cone 5 to the thrust sleeve 7 through the bearing 6.

By varying the speed of rotation of the sleeve 7 using variator 12, the contour of the resulting product is monitored.

The proposed device due to its constructive implementation provides improved quality of workpieces.

Claims (2)

1. A device for rotational extrusion, comprising a housing with supporting cones placed therein, interacting with pressing elements, as well as a mechanism for adjusting the relative position of the supporting cones, characterized by the fact that, in order to improve the quality of machined parts, it is equipped with a variator equipped with a drive, and in the housing with the possibility of axial movement and a rotary bush is installed, cooperating with one of the support cones, wherein the bush is connected kinematically to the variator. 2. The device according to p. I, different By the fact that, in order to increase the reliability of operation, the resistant sleeve is provided with a clutch of the limiting torque. Sources of information taken into account in the examination 1. USSR author's certificate No. 446340, В 21D 22/16, 1972 (prototype). // one. V