SU1555037A1 - Male die for heading cruciform slots - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to a tool for the landing of cross-shaped slots of the heads of screws and screws. The purpose of the invention is the expansion of technological capabilities through the use of a working formative insert on various slot sizes. The punch for the landing of the cross slots consists of a body, a spherical support, a working insert and a replaceable sleeve. The working insert consists of a shaping part, a seating part and a base. The forming part is made in the form of a cone, which passes into a truncated cone, the normal cross section of which has a cruciform shape. The seat part of the insert is a continuation of the truncated cone of the shape-forming part with a cross section of a similar shape. The replaceable sleeve is made with an internal cavity, the parameters of which in the normal section correspond to the parameters of the fitting part of the insert. When changing the punch to a different size of the recessed slot, the sleeve is replaced with another. 1 hp f-ly, 4 ill.

Description

The invention relates to the processing of metals by pressure, in particular to a tool for the landing of cross-shaped slots of the heads of screws and screws.

The aim of the invention is the expansion of technological possibilities through the use of one working forming insert on different sizes of slots.

FIG. 1 and 2 shows the combined punches, options; in fig. 3 - insert, general view; in fig. 4 - the same, top view.

The punch for the landing of the cross-shaped splines consists of a body 1, a support 2 with a spherical surface, a working insert 3 and a replaceable sleeve 4 (Fig. 1 and 2). The replaceable sleeve 4 can be made in various ways, in the form of an insert

(Fig. 1) or at the same time whole with the body (Fig. 2). Working insert 3 consists of a shape-forming part 5 of height E, a landing part 6 with a spherical base 7 of height L (Fig. 3 and 4). The forming part 5 is made in the form of a cone, passing B a truncated cone, the normal cross section of which has a cruciform shape. The seating part 6 of the insert 3 is a continuation of the truncated cone of the shaping part 5 with a cross section of a similar shape. The base 7 of the insert 3 is spherical. The replaceable sleeve 4 is made with an internal cavity, the parameters of which in the normal section correspond to the parameters of the fitting part of the insert 3.

Box 3, replaceable sleeve 4 and sfeSP

ate

SP

About 00

one

brush

mounted in a housing mounted on a support consisting of a shaping part, made in the form of a cone, conjugated with a truncated cone, the normal cross section of which has a cross-shaped seat and base, and also a sleeve, covering the seat part of the working insert, differing from that, in order to expand technological capabilities, the landing part of the working insert is made in

cross 1 punch (fig. 1 and 2). In this case, the spherical part 7 of the insert 3 is located in the spherical support 2 of the same radius and during installation, due to the mobility of the support 2 relative to the housing 1, the landing part 6 of the insert 3 is placed without distortions in the cavity of the replaceable sleeve 4. The cross-shaped slot is formed by the projecting part 5 of the insert 3 the value of Ј and the plane of the head is the outer виде view of the surface, which is the continuation plane of the interchangeable sleeve 4. by shaping the truncated cone

If necessary, changes are made to the part of the working insert, and the sleeve is made with the slot and height diameters of the interchangeable, while the punch is equipped with a set (change to another form size) with an additional set of additional sleeves that can be replaced with a replaceable sleeve 4 15 have holes for the mounting part of the wound cavity, the parameters of which are in the normal insert of different cross-sectional area

Claims (2)

The maximum cross-section corresponds to the parameters of the cross section that has changed in height L of the landing part of the insert 3. 2. A punch according to Claim 1, characterized in that the claims are in that the base of the working insert and from 1. The punch for the landing of the cruciform 20 is a winding surface of the support, made by the bows, comprising a body, the working insert-shaped. mounted on a support consisting of a shaping part, made in the form of a cone, conjugated with a truncated cone, the normal cross section of which has a cruciform shape of the mounting part and base, as well as a sleeve, covering the fitting part of the working insert, characterized in that In order to expand technological capabilities, the landing part of the working insert is made in the form of the surface, which is a continuation of the truncated cone shaping J 4 z FIG. Z Fig.z Figm