SU1754405A1 - Device for pressing off bushings - Google Patents

Abstract

Use: in mechanical assembly production, mainly for extrusion of parts such as bushings and rings with access to the abutment face of the part to be removed through its cavity, for example, for pressing out the reflector from the jack of the front-wheel drive vehicle's rotary cam. SUMMARY OF THE INVENTION: The device comprises a rod 1 with a head 2 and a weight 3 sliding along the rod. The rod 1 is rigidly fixed at one end to the body 4 with a lid 5 having a diametral groove 7 in which the clamps 8, spring-loaded 9 by compression, are installed. Through the cavity of the part to be removed 13, the device case with compressed grips 8 is inserted into the socket of the rotary cam, after which the clamps are opened under the action of spring 9 and the removed part 13 is gripped. The part 13 is pressed out by abruptly moving the load 3 to the head 2 transmission wherein inertia of its moving device. 3 il.

Description

fig1

The invention relates to mechanical assembly II and OiMy production and can be used in various fields of technology, mainly for pressing out parts such as sleeves and rings with access to an obstinate highlander of the part being removed through its cavity, for example, for sweeping the reflection mirror from the socket of the rotary cam front wheel drive front suspension.

The closest to the proposed technical essence and the achieved result is a device for pressing out the sleeves, comprising a housing with radial holes in which the gripping elements spring loaded between themselves by tensioning springs and the mechanism controlling them with a rotating cam interacting with gripping elements are installed.

However, this device does not provide the possibility of pressing out sleeves with limited space under the gripping part of the device (for example, dirt of a zeographer installed with a relatively small gap relative to the bearing face in the slot of the swivel cam of the car wheel hub).

This is explained by the fact that the implementation of the mechanism for controlling the grippers with a rotating cam interacting with the gripping elements spring-loaded tension springs requires, due to the angular displacement (90 °) of the cam, the installation of these springs from its upper and lower ends, which increases the size the working area of the grippers, including the thickness of the gripping elements equal to at least the sum of the thickness of the cam, the two diameters of the springs and the thickness of the part of the body holding the gripping elements

The purpose of the invention is to expand the technological capabilities of the device.

This goal is achieved by the fact that the B device for pressing out the sleeves, comprising a housing with a groove in which the clamps are spring-loaded and the mechanism for controlling them, has a sliding weight on the hull and a groove diametrically, while in the housing there are additionally connected diametral groove radial grooves. in which a finger grip control mechanism is installed, with the grips being spring-loaded with a compression spring.

Fig, 1 shows the proposed device, a general view; Fig. 2 is a view A of Fig. 1; on fig.Z - view B in figure 2.

The device for pressing out the sleeves, for example, for pressing out the zeojecter from the socket of the steering cam of the front suspension of a front wheel drive car, contains an elongated rod with a head 2 at one end and a load 3 sliding along the rod 1.

The stem 1 with the other end is rigidly fixed to the housing 4 with the lid 5 interconnected by bolts 6. The lid 5 of the housing is made with a diametral groove 7 located perpendicular to the axis of the stem 1, in which the clamps 8 are placed, spring-loaded with a compression spring 9.

To squeeze the grippers 8, the fingers 10 are rigidly fixed on each of them; they are mounted in the through radial grooves 11 of the housing 4 associated with the diametral groove 7. At the end of the stem 1, the handle 12 is fixed on the side of the head 2.

The pressing out of the grinder 13 from the jack of the rotary cam 14 is carried out as follows.

In the initial position, the grippers 8 are unclenched by a spring 9. Holding the device by the handle 12, by force of the fingers of the second hand, fingers 10 are pushed to the axis of the rod 1, thereby gripping the grips 8, and the body with the grips passes through the cavity of the removed part 13, then free the fingers 10 and grip the part to be removed.

Under the action of the spring 9, the clamps are expanded by an amount n exceeding the diameter of the cavity of the part.

Acting on the handle 12 in the direction opposite to the device input, the claws 8 are pressed against the stop surface 15 of the part to be removed 13. Then the sliding load 3 is moved from the head 2 to the body 4 and sharply sent to the side of the head 2. At the same time the load 3 due to the impact of the head 2 and the transfer of the inertia force of its movement to the device by pressing out the deflector 13 from the socket of the rotary cam.

Work with the load is performed until the entire crushing frame is released from the socket of the rotary cam 14 and the cycle is repeated.

The use of the invention makes it possible to extrude parts such as sleeves and rings with access to the stop end of the part being removed through its cavity and a limited depth of the working area, expanding the technological capabilities of the device.

Claims (1)

Invention Formula A device for pressing out the sleeves, comprising a housing with a groove in which the clamps, which are spring-loaded between them, and their control mechanism, characterized in that, are installed. that, in order to expand technological capabilities, a sliding load is installed on the body, and the groove is made diametrically, while in the case additionally, radial grooves associated with the diametral groove are made in which the finger grip control mechanism is installed, the grips being spring-loaded with a compression spring. In id