SU1044387A1 - Apparatus for expanding thin-wall cone blanks - Google Patents

Abstract

DEVICE FOR DISTRIBUTING THE OWN TEAM with a chain of quality improvement by means of foodstuffs in the stability of the workpiece, aao is equipped with a fur. the axis of the axial displacement is the living element of the element, and the insert is installed. fixed with respect to the punch.

Description

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This invention relates to the pressure treatment of tubular blanks.

A device for processing thin-walled tubular blanks is known, which comprises a rigid punch, a supporting element, an insert mounted on the punch, a deforming elastic ring and a pusher.

The disadvantage of the device is the inability to move the billet with an elastic ring.

The purpose of the invention is to improve quality by preventing loss of stability of the workpiece.

This goal is achieved by the fact that the device for distributing thin-walled Hbix conical | blanks, containing a rigid punch, a supporting element mounted coaxially to the punch;

The drawing shows the proposed device.

The device comprises a rigid punch 1, over which a support 2 with a mechanism 3 of its axial movement is installed with a gap. In the inner cavity of the supporting element 2 there is a rigid insert 4, which is mounted on the punch 1. In the inner cavity of the insert 4 there is a conical section made in the shape of the blank. In the gap between the supporting element 2 and the rigid insert 4, a deforming elastic ring 5 is installed, KOTqjoe is mechanically connected to the push rod b, axially spring-loaded relative to the supporting element 2 by the compression spring 7.

The device works as follows.

The cutstock 8 is mounted on the punch 1. With the help of the mechanism 3 of movement, the supporting element 2, inside of which there are

elastic ring 5 and rigid insert 4-. set over the punch 1 with a gap, the value of which depends on the geometry of the resulting part, the mechanical properties of the workpiece material and its

forms. When lowering the pusher 6, for example, under the action of the press ram, deformation (compression) of the elastic ring 5 occurs and it moves into the gap between the supporting element

volume 2 and punch 1, with the workpiece 8 starting from the bottom edge deformed (distributed) under the action of friction forces arising between displacing 1 O; for an elastic ring 5 on the punch 1. As a result of the action of a tensile deforming

Effort is eliminated the possibility of loss of stability of the workpiece and, as a consequence, increases the possibility of its shape. At the end of the distribution process, support element 2 is retracted, under

the action of the spring 7, the elastic ring 5 and the insert 4 occupy the initial position, and remove the resulting part. The proposed device was tested during the distribution of conical welded blanks from material AMgZM l 0.3 with diameters of bases 1OO and 5O mm and height 1O5 mm. The elastic ring is made of 8 mm polyurethane. The hard punch is made conical with a taper angle at the apex of 45 °. As a result of the use of the device, the distribution coefficient Kj 0.8 is obtained without loss of stability of the workpiece, which by 45-50% exceeds the allowable degrees of deformation obtained using the known device.

Thus, the set-up device will allow a 45-50% increase in the possibility of changing thin-walled v conical billets.

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Claims (1)

DEVICE FOR DISTRIBUTION ’THIN-WALLED CONIC ZAGO- TOVOK containing a rigid punch, a support element mounted coaxially with the punch, an insert mounted on the punch, an elastic ring deforming between the insert and the supporting element, and also a pusher interacting with the elastic ring, characterized in that, in order to improve quality by preventing loss of workpiece stability , it is equipped with an axial mechanism for moving the supporting element, and the insert is installed. motionless relative to the punch. f 1044387 2