SU1063580A2 - Tool for strengthening treatment of internal cylindrical surface - Google Patents

Abstract

1. INSTRUMENT FOR HARDENING 1MD OF THE TREATMENT OF THE INTERNAL CYLINDS OF THE RICAL SURFACES ON AUT. St. And 645825, characterized in that, in order to expand the technological capabilities of the tool by providing simultaneous processing of the opposite surfaces of the part adjacent to the hole, the liner flange and the flange of the gauge are located at opposite ends of the tool, and on the flange of the liner and flange of the mandrel perpendicular to axial tool feed is made of working surfaces intended for processing the surfaces of the part adjacent to the hole. 2. The tool of claim 1, distinguished by the fact that, in order to increase the accuracy of the hole to be machined, through the insert liner and the flange of the mandrel are made through holes to accommodate the corresponding mandrel and the contribution, and the radius of the hole made in the insert core radius. the mandrel, and the reshias of the hole, made in the flange of the mandrel, is equal to the insert radius.

Description

The invention relates to the processing of metals by pressure and can be used while simultaneously hardening the inner cylindrical surfaces and the ends of the parts.

According to the main author. St. No. 645825 is a tool for strengthening treatment of internal cylindrical surfaces, made in the form of a cylindrical insert with a collar at the end of the mandrel, with this insert and mandrel made with bevels forming a wedge pair l}.

A disadvantage of the known tool is that it does not allow simultaneous machining of the hole and the opposite surfaces of the part adjacent to the hole. This reduces the technological capabilities of the tool. In addition, due to the lack of fixation of the position of the mandrel in the extreme working position, the machined hole has a low accuracy,

The purpose of the invention is to increase the technological capabilities of the tool by allowing simultaneous machining of the opposite surfaces of the part adjacent to the hole and improving the machining accuracy.

This goal is achieved by the fact that in a tool for hardening the treatment of internal cylindrical surfaces, the insert shoulder and mandrel flange are located at opposite ends of the tool, and on the shoulder of the insert and mandrel flange perpendicular to the axial flow of the tool there are working surfaces intended for machining surfaces adjacent to the hole the details.

At the same time, in the collar of the insert and the flange of the mandrel there are made through holes to accommodate the corresponding mandrel and the liner, with the radius of the hole made in the collar of the liner equal to the radius of the mandrel, and the radius of the hole made in the flange of the mandrel is equal to the radius of the liner.

FIG. 1 shows the proposed tool, a longitudinal section; in fig. 2 shows section A-A in FIG. one.

The tool contains a cylindrical liner 1 with a flange 2 and a cylindrical mandrel 3 with a flange 4. On the liner and mandrel, the bevels are made identical to the axis of the liner 5 and the mandrel. On the collar 2 of the insert 1 and the flange 4 of the mandrel 3, the working surfaces 5 and b, respectively, are perpendicular to the axial feeding of the tool, intended for processing the surfaces of the workpiece adjacent to the aperture. In the flange 2 of the liner 1 and the flange 4 of the mandrel 3 there are through holes to accommodate the corresponding mandrel 3 5 and the liner 1, the radius of the hole made in the flange 2 of the liner 1 is equal to the radius of the mandrel 3, and the radius of the hole made in the flange of the mandrel ,, is equal to the radius Insert Breathing 1.

The surface hardening of the part by the proposed tool is carried out as follows.

In pre-prepared

5, a bore is inserted into the insert 1 until the surface 5 and the part are in contact. Then, the mandrel 3 is installed in the hole of the part, while the mandrel 3 is placed in the opening of the collar 2 of the liner 1, and the insert 1 in the opening of the flange 4 of the mandrel 3.

Under the action of the deforming force P, applied to the liner 1 and the mandrel 3, they are axially fed, providing reinforcement around;

5 work the hole and opposite surfaces of the part adjacent to the hole.

The deformation is carried out until a tool closure occurs, i.e. surface. the liner and mandrel does not come into contact with the corresponding cylindrical surfaces of the holes, made in the collar of the liner 1

5 and the flange 4 of the mandrel 3.

The proposed device, in comparison with the known one, possesses large technological capabilities, since it allows machining the flat surfaces of the part simultaneously with the aperture and provides a higher geometrical accuracy of the machined hole. | details.

Claims (2)

1. TOOL FOR STRENGTHENING OF INTERNAL CYLINDRICAL SURFACES rto ed. St. No. 645825, characterized in that, in order to expand the technological capabilities of the tool by providing simultaneous processing of opposite surfaces of the part adjacent to the hole, the liner flange and the mandrel flange are located at opposite ends of the tool, and on the liner flange and mandrel flange perpendicular to the axial feed of the tool made working surfaces designed for processing adjacent to the hole surface of the part. 2. The tool pop. ^ characterized in that, in order to improve the accuracy of the hole being machined, through holes are made in the collar of the liner and the mandrel flange to accommodate the corresponding mandrel and liner, the radius of the hole made in the collar of the liner is equal to the radius of the mandrel and the radius of the hole made in the mandrel flange is equal to the radius of the liner. F ♦ Ig /