RU151794U1 - TOOL FOR ELECTROMECHANICAL STRENGTHENING OF THE SURFACE OF THE PARTS - Google Patents

Abstract

A tool for electromechanical hardening of the surface of a part, comprising a cylindrical body, a loading spring, an arm, a rod, a fork and an axis, characterized in that it is provided with reinforcing rollers with contact sections, current-carrying axes, a flange mounted from the front end of the housing, a pressure washer, a flag, a cover rigidly mounted on the rear end of the housing, and a strap rigidly fixed on the outside of the housing, while the rod, clamping washer, flag and loading spring are installed in a cylindrical housing, ronshteyn fixed to the front end of the rod, a fork hinged to the bracket via an axis and reinforcing rollers mounted via axes in the current-carrying fork to be offset from each other by the width of the contact portion.

Description

TOOL FOR ELECTROMECHANICAL STRENGTHENING OF THE SURFACE OF THE PARTS

The utility model relates to mechanical engineering, in particular, to tooling for surface hardening of parts during their manufacture or repair.

A single-roller tool with a spiral spring is known (design of the Volgograd Polytechnic Institute) [V.P. Bagmutov, S.N. Parshev, N.G. Dudkina, I.N. Zakharov: Electromechanical processing-2003, pp. 43-44], including a cylindrical body, bracket, rod, plug, axle.

Known tooling has the following disadvantages:

- Low hardening performance;

- Loss of input electric current.

The technical result of the utility model is to increase the productivity of hardening the surface of the part and reduce losses of the supplied electric current.

The technical result is achieved by the fact that the tool contains reinforcing rollers, current-carrying axes, a flange, a pressure washer, a flag, a cover, a bar. The bar is rigidly fixed on the outside of the cylindrical body. A flange is mounted on the front end of the cylindrical body. A cover is rigidly fixed to the rear end of the cylindrical body. A rod, a clamping washer, a flag, a spring are installed in a cylindrical body. A bracket is attached to the front end of the stem. A fork is pivotally mounted on the bracket using an axis. Reinforcing rollers are installed in the plug using current-carrying axes with an offset relative to each other by the width of their contact section.

In FIG. 1 shows a General view of the tool for electromechanical hardening of the surface of the part.

The tool for electromechanical hardening of the surface of the part comprises a cylindrical body 1, a loading spring 2, an arm 3, a rod 4, a plug 5, an axis 6, reinforcing rollers 7, 8, current-carrying axes 9, 10, a flange 11, a pressure washer 12, a flag 13, a cover 14, bar 15. The bar is rigidly fixed on the outer side of the cylindrical body 1. A flange is installed from the front end of the cylindrical body 11. A cover 14 is made rigidly fixed to the rear end of the cylindrical body in which a square hole is made. A rod is installed in the cylindrical body, the tail of which is made square. The stem of the tail is installed in the square hole of the cover, which eliminates the rotation of the stem, the axial movement of the stem is limited by a bolt 16, which is installed in the end of the tail of the stem. The washer 12 is mounted on the rod from the inner end of the flange. The check mark 13 is mounted on the rod 4 and is oriented in the groove of the cylindrical body 1. The loading spring 2 is installed in the cylindrical body 1. In the front end of the rod 4, the bracket 3 is fixed using bolts 17, 18. To isolate the reinforcing rollers from the tool body between the bracket 3 and the rod 4, as well as from the inner end of the rod 4, current-insulating gaskets 19, 20 are installed, bushings are installed in the holes of the rod by bolts 17, 18. A plug 5 is pivotally mounted on the bracket 3 using the axis 6. In the plug 5, reinforcing rollers 7, 8 are installed using the current-supplying axes 9, 10 with an offset relative to each other by the width of the contact section.

Work tool for electromechanical hardening of the surface of the part as follows.

A tool for electromechanical hardening of the surface of the part is installed in the tool holder of a screw-cutting lathe using a bar. A current-carrying cable is fixed to each current-carrying axis of the instrument. By turning the handle of the caliper of the screw-cutting machine, reliable contact of the reinforcing rollers with the work surface is created. A current with a density j = 250 ... 300 A / mm ^{2 is} passed through the contact point of the reinforcing rollers with the surface to be treated. As a result, the contacting surfaces of the reinforcing rollers with the surface to be treated are heated to a temperature of 900 ... 1000 ° C, and upon subsequent movement of the tool and the supply of cutting fluid to the contact zone, heat is instantaneously removed, resulting in a hardened area.

The use of a tool for electromechanical hardening of the surface of a part makes it possible to reduce losses of the supplied electric current to the hardening roller and to increase the productivity of hardening.

Claims (1)

A tool for electromechanical hardening of the surface of a part, comprising a cylindrical body, a loading spring, an arm, a rod, a fork and an axis, characterized in that it is provided with reinforcing rollers with contact sections, current-carrying axes, a flange mounted from the front end of the housing, a pressure washer, a flag, a cover rigidly mounted on the rear end of the housing, and a strap rigidly fixed on the outside of the housing, while the rod, clamping washer, flag and loading spring are installed in a cylindrical housing, to onshteyn fixed to the front end of the rod, a fork hinged to the bracket via an axis and reinforcing rollers mounted via axes in the current-carrying fork to be offset from each other by the width of the contact portion.

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