SU1289606A1 - Apparatus for strengthening cylindrical articles - Google Patents

Abstract

The invention relates to devices for the reinforcement of cylindrical parts. The purpose of the invention is to expand the technological capabilities, reduce the cost of the hardening process and improve the quality of the coating. The reinforced part is clamped in the turning chuck 12 and the rotational movement is communicated to it, and the cutter I is displaced. After cutting one coil of spiral ka (L o 00 C5

Description

128

The nanometers for parts include an HDTV 10 inductor and motors 3 and 9. A metal powder from a cassette 5 is fed from a cartridge 5 into a groove and pressed to its surface by a cam 6, which is associated with the motor 9. During rotation, the cam 6 forms longitudinal risks on the tape triangular profile (oil pockets) for retardation. The invention relates to powder metallurgy, in particular to devices for strengthening cylindrical parts by applying metal coatings of powders on them.

The purpose of the invention is to expand technological capabilities, reduce the cost of the hardening process and improve the quality of the coating.

In figs; 1 shows a section device; in fig. 2 is a section A-A in FIG. one .

The device contains a cutter 1, engines 2 and. 3 associated with the control unit 4, the cassette 5 in which the metal powder band is placed, the cam 6, the bevel gears 7 and 8, the motor 9, the inductor

HDTV 10.

I

Cam 6 has a ledge for

providing a high strength of adhesion of the coating to the base and cavities, allowing to obtain porous areas (oil pockets P), which delay the lubricant (Fig. 2). The part is mounted in the lathe chuck 12 and in the center of the tailstock 13. apron 14,

The device works as follows.

The part is fixed in the cams of the turning chuck 12 and is clamped by the center of the tailstock 13. The rotational movement of the part and the translational movement of the cutter 1, which cuts a screw groove of the required pitch on the part surface, are reported. After cutting one turn of the spiral groove, the HDTV O inductor and motor 3 and 9 are turned on.

vanilla grease them when working dek ali. The device allows for hardening; The type and size of the product. Due to the application of) and continuous tape; by aggregating the consumption of the tape is reduced, the productivity of the hardening process increases. The physical and mechanical properties of the coating and the accuracy of its geometry increase. 2 ill., 1 tab.

A tape of metal powder bonded with a plasticizer is fed from the cassette 5 by means of a guide and its device (not shown in Fig. 1) into the groove and pressed against the inner surface of the groove by the cam 6, which is kinematically connected with the engine 9. In the process of rotation, the cam 6 forms on the tape the longitudinal risks of a triangular profile (mass pockets 1 1) in order to delay the lubricant in them during the work of the part in the mechanism. The magnitude of the angle about which the cam 6 is installed, determined by the part’s design, lies between 45 and 30 and is obtained depending on the setting of the groove spiral pitch. I

The proposed device provides: a coating of non-rigid parts with a metal tape (P / d 5-8). Since the width of the tape is 5 or more times the length of the part, this gives

the ability to concentrate the pressing force on the base on a small area, which increases the strength of adhesion of the powder to the part and improves accuracy due to the reduced force of the sealing device on the part.

The wear resistance of the coatings is increased by applying a continuous tape along a helix and eliminating it.

breaking in two places (the beginning and end of the coating process), and also due to a uniformly applied normally acting force with the cam 6. Coating in a spiral reduces the consumption of metal tape and increases the productivity of the reinforced 31

Scientific research institute in comparison with drawing metal tapes on all surface approximately in D time.

In addition, the abrasive particles formed during the subsequent work of the parts in the mechanism are removed from the friction zone by spiral winding beyond its limits, which also helps to reduce wear of rubbing pairs and decrease the temperature in the friction zones.

The table shows the data relating to the technical advantages of the proposed device over the known

Claims (1)

Invention Formula A device for hardening cylindrical parts containing a heat source, a hardening feed unit Famous 5-6 Proposal12-20 tapes of metal powder and a tape deforming unit mounted rotatably, so that, in order to expand technological capabilities, reduce the cost of the hardening process and improve the quality of the coating, it is equipped with a cutter for forming a screw surface on the part and a control unit The tape deforming unit is made in the form of a cam with protrusions and depressions and is set at an angle to the horizontal, while the tape feeding and deforming units and the cutter are installed with the possibility of movement of the harness, and the feed and warping nodes of the belt are interconnected via a control unit. 56 60 Yes memorized 7-12 85 Not (pua.Z Compiled by G. Zagorsk Editor N. Slobod nickname Tehred N. Glushenko Proofreader E. Sirohman Order 7847/11 Circulation 763 Subscription VNIIPI USSR State Committee for inventions and discoveries N3035, Moscow, Zh-35, Raushsk nab., d, 4/5 Production and printing company, Uzhgorod, st. Driveway g) (, 1n, 4