SU1362605A1 - Induction device for disassembly of press-fitted joints - Google Patents

Abstract

The invention relates to an assembly plant, namely, devices for thermally disassembling press joints, and improves the performance and quality of the disassembly by performing a puller in the form of a percussion mechanism, the actuation drive of which is electrically connected to an induction heater. At the same time, it is possible to adjust the impact force. Divorce the magnetic cores 4 and the levers – clamps 5. Install the device on the assembly to be disassembled. By turning the screw (c) 11, the sleeve 10 is moved, compressing the spring 15 until it is fixed by the element. 18 "The end face B 11 is retracted from the end of the shaft 8 to the distance L, the value of which determines the subsequent force of the shock load. The induction heater is turned on and when it reaches a predetermined temperature, it is simultaneously given a command to turn it off and turn on the electromagnetic actuator 21, which moves the ring 19 and thereby unlocks the sleeve 10 with the glass 9. The end B 11 strikes the shaft 8 with force more than double exceeding the compressive force of the springs 15. The removal of the part is carried out by the force of a spring-loaded quill 12. 1 Cp f-ly, 2 ill. (L with 2t

Description

one

The invention relates to the assembly industry, namely to devices for thermal disassembly of press joints.

The aim of the invention is to increase the productivity and quality of disassembly.

The goal is achieved by performing a puller in the form of a percussion mechanism, the actuator of which is electrically connected to the induction heater, and the possibility of adjusting the percussion force is provided.

Figure 1 shows an induction device for removal of parts (initial position), general view; 2 - the same (after unlocking the telescope 13626052

a sator 18 placed in radial drilling of the wall of the cup and the spherical part of the threaded sleeve entering the recess, a ring 19 connected via a lever 20 with a pushing electromagnet 21, and a spring 22.

An induction device for removing the pressed-up parts works Q as follows.

First, the movable magnetic conduits 4 are separated by an amount somewhat exceeding the size of the part to be removed, and the screw 11 with a pinhole 12 is retracted to the extreme right position. Then, the device is mounted on the removable part 7. In this case, the pinhole 12 enters the center hole of the shaft 8, providing such

a weighty ejector center and in the beginning a uniform gap between the inla of removal of the part).

The device contains a base 1, on one side of which the induction coil 2 is fixed, six stationary L-shaped magnetic conductors 3, which have, in the upper part, special lines 1e in which the magnetic conductors 4 are placed in the radial direction 4. There are mounted on hinges between the stationary magnetic circuits arms 5 c. springs 6 for gripping and removing the female part 7 from the shaft 8.

On the opposite side, a cup 9 is fastened to the base, in which a telescopic pusher center is placed, consisting of a threaded sleeve 10 with a screw 11, in the bore of which there is a centering quill 12 with a pin 13 and a spring 14. In the inner cavity of the cup 9 between the threaded end sleeve 10 and the bottom of the glass set of coaxially arranged torschelps springs 15.

To avoid rotation and only a reciprocating axial direction of the sleeve 10 when the screw 11 is rotated, there is a stepped screw 16 in the wall of the glass 9, the cylindrical part of which fits into the longitudinal groove of the sleeve. To prevent the spring extinguishing 14 of the quill 12, there is a step. ty screw 17.

Holding the disc springs in the compressed state is carried out by the mechanism of fastening the threaded sleeve 10 with the cup 9, consisting of a fi

coil reel 2 and part 7; The levers 5 are pressed against the rear end of the removed part by springs 6. After the stop of the end part of the screw

5 11 as it rotates into the end of the shaft 8, it begins to move along the screw in the axial direction inside the glass of the threaded sleeve 10, compressing the cup springs 15 until

0 latch 18 will go into its recess. At this moment, the ring 19, moving under the action of the spring 22, closes the opening in the glass 9 and fixes the sleeve 10 relative to it.

After the disc springs are fixed in the compressed state, the end of the screw 11 is retracted from the end of the shaft 8 to a distance e, the value of which can vary from 0 to 5 mm. This distance is controlled by the pin 13 extending beyond the end of the tetrahedral screw stem 11 The induction coil 2 is then turned on and as soon as the removed part reaches the minimum

g of a given heating temperature is simultaneously given a command to turn off the induction coil and turn on the electromagnet 21, which, overcoming the force of the spring 22, moves the ring 19. At the same time, the latch 18 is pushed out of the recess of the sleeve 10 into the bore of the ring 19 under the action of the force of the compressed cup springs. ), unclamping the telescopic ejector center, which, with the end of the screw 11, strikes the shaft 8 with a force more than two times higher than the reinforcement of the compressed disc springs. Application dynamic0

five

A load at the end of heating significantly increases the efficiency of stalling a part pressed on the shaft. Further removal of the part is carried out by the force of a spring-loaded quill 12.

Formula and 3 gains

1. An induction device for disassembling the press joints, containing an induction heater installed on the housing with magnetic conductors, grippers and a puller with a screw mounted along the cutting axis, characterized in that, in order to increase the disassembly performance and quality, the puller is made in the form of a hollow cup with a radial bore fixed to the housing along the extrusion axis, a ring with a recess on the inner surface, spring-loaded with respect to the glass and installed on its outer surface with the possibility Tew axle spring 25.

0

five

0

displacement, electromagnetic drive movement of a ring electrically connected with an induction heater, sleeves with a through axial threaded hole and a recess on the outer surface installed in the cavity of the cup with the possibility of axial movement and spring-loaded by means of elastic elements relative to its end, retainer placed in the radial hole of the cup with the possibility of interaction with the recesses of the ring and the sleeve, and the quill, the screw is made with an axial cavity and the sleeve is installed in the threaded hole and a tailstock arranged in the axial cavity of the screw and spring-loaded in the axial direction with respect to the latter.

2. The device according to claim 1, about t l and - Chayupleees the fact that the elastic elements, clamping the sleeve to the end of the glass, made in the form of disc

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FIG. 2

Editor T. Parfenova

Compiled by N. Pozhidaeva

Techred. L. Serdyukova Proofreader M. Pojo

Order 6339/10 Circulation .970 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab. 475

Production and printing company, Uzhgorod, st. Project, 4

Claims (2)

Claim 1. An induction device for disassembling press joints, comprising an induction heater with magnetic circuits mounted on the housing, grippers and a puller with a screw mounted on the extruding axis, 15 characterized in that, in order to increase the productivity and quality of disassembly, the puller is made in the form of a hollow glass with a radial hole fixed on the housing 20 along the axis of the extrusion, a ring with a recess on the inner surface, spring-loaded relative to the glass and mounted on its outer surface with the possible axial movement axis 25, an electromagnetic drive for moving the ring electrically connected to the induction heater, a sleeve with a through axial threaded hole and a recess on the outer surface mounted in the cavity of the glass with the possibility of axial movement and spring-loaded by means of elastic elements relative to its end in the radial hole of the glass with the possibility of interaction with the recesses of the ring and the sleeve, and pintles, the screw is made with an axial cavity and installed in a threaded Sleeve bore and tailstock arranged in the axial cavity of the screw and spring-loaded in the axial direction with respect to the latter. 2. The device according to claim 1, characterized in that the elastic elements, pressing the sleeve to the end of the glass, are made in the form of Belleville springs. FIG. 2