CN201871906U - Spring compression tooling - Google Patents

Abstract

The utility model discloses a spring compression tool, which comprises an outer guide sleeve, an inner guide sleeve, a screw rod, a positioning seat fixed on the outer guide sleeve for fixing one end of a shock absorber, and a positioning seat fixed on the inner guide sleeve. The shock absorber mounting seat on the sleeve, the inner guide sleeve is threadedly connected with the screw rod, the outer guide sleeve includes an end portion and a guide portion, the inner guide sleeve is located in the guide portion, the end portion and the guide portion The connection of the guide part is provided with an inner boss that limits the position of the inner guide sleeve, and one end of the screw rod is provided with an end for matching with a wrench and a flange clamped in the end of the outer guide sleeve , the end protrudes from the end. The spring compression tooling has the advantages of small volume, simple structure and convenient operation, and is suitable for online compression of springs of shock absorbers on automobile rear axle assembly lines.

Description

A spring compression tooling

technical field

The utility model relates to the technical field of automobile assembly, in particular to a spring compression tooling.

Background technique

In the automobile assembly process, the shock absorber spring on the rear axle needs to be compressed first, and then other components are assembled. The existing assembly method usually fixes the rear axle on the press-fitting equipment, and uses oil cylinder or air cylinder to compress the shock absorber spring. However, this assembly mode has low efficiency and cannot adapt to modern assembly line operations. Therefore, it is urgent to provide a spring compression tool to overcome the above defects.

Utility model content

The technical problem to be solved by the utility model is to provide a spring compression tool with small volume, simple structure and simple operation, which can effectively improve the assembly efficiency of automobiles.

In order to solve the above technical problems, the utility model provides a spring compression tool, which includes an outer guide sleeve, an inner guide sleeve, a screw rod, a positioning seat for fixing one end of the shock absorber fixed on the outer guide sleeve and A shock absorber mounting seat fixed on the inner guide sleeve, the inner guide sleeve is threadedly connected with the screw rod, the outer guide sleeve includes an end portion and a guide portion, and the inner guide sleeve is located in the guide portion , the connection between the end and the guide is provided with an inner boss that limits the inner guide sleeve, and one end of the screw is provided with a head for matching with a wrench and a clamping device on the outer guide sleeve. A flange in the end from which the end protrudes.

The spring compression tooling of the utility model adopts the shock absorber installation seat to hook the spring end cover of the shock absorber, and the positioning seat to hook the lower end of the shock absorber, and then the inner guide sleeve generates relative movement in the outer guide sleeve through the rotation of the screw rod. , so as to shorten the distance between the shock absorber installation seat and the positioning seat, and then compress the spring to a specified length. Compared with the prior art, the spring compression tooling is small in size, simple in structure, and easy to operate, and is suitable for online spring compression of shock absorbers on automobile rear axle assembly lines. Rear axle assembly efficiency.

As a preferred embodiment of the present invention, the inner guide sleeve is provided with a threaded sleeve, and the inner and outer walls of the threaded sleeve are provided with threads. Since the threaded sleeve is a vulnerable part, the inner guide sleeve and the threaded sleeve are connected by threads to facilitate the replacement of the threaded sleeve.

Preferably, the threaded sleeve is connected to the inner guide sleeve through an elastic pin, so as to prevent the threaded sleeve from loosening.

Further, one end of the threaded sleeve is provided with a step matched with the inner boss of the outer guide sleeve, and a movable spacer is arranged between the step and the inner boss, and the step force on the inner guide sleeve The movable spacer is transmitted to the inner boss of the outer guide sleeve, which can increase the stress surface of the end face of the threaded sleeve, reduce the impact between the steps on the inner guide sleeve and the inner boss of the outer guide sleeve, and prevent the deformation of the end face of the threaded sleeve.

Preferably, the flange of the screw rod is fixed in the end of the outer guide sleeve through a circlip and a thrust bearing, and the thrust bearing is located between the flange of the screw rod and the inner boss of the outer guide sleeve Between, so as to limit the axial direction of the screw.

Preferably, a wear-resistant retaining ring is provided between the circlip and the flange of the screw rod, so as to prevent the thrust bearing from wearing out the circlip.

Preferably, the other end of the screw rod is provided with a stop ring and a screw to prevent the screw rod from coming out of the threaded sleeve.

Preferably, the sliding surface between the outer guide sleeve and the inner guide sleeve is a rectangular surface, which can prevent the inner guide sleeve from rotating in the outer guide sleeve.

Preferably, a guide plate is provided on the outer guide sleeve corresponding to the positioning seat, so as to facilitate the installation of the shock absorber.

The utility model will become clearer through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the utility model.

Description of drawings

Fig. 1 is a front structural schematic diagram of the spring compression tooling of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram along the line A-A of the spring compression tool shown in Fig. 1 .

Fig. 3 is a schematic diagram of the use state of the spring compression tool shown in Fig. 1 .

Detailed ways

Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements. As mentioned above, the utility model provides a spring compression tool with small volume, simple structure and simple operation, which can effectively improve the assembly efficiency of automobiles.

The technical solutions of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. As shown in Figures 1 and 2, the spring compression tooling of the present embodiment includes an outer guide sleeve 10, an inner guide sleeve 20, a screw rod 31, and a shock absorber 1 fixed on the outer guide sleeve 10 (see Fig. 3) The positioning seat 41 at one end of the inner guide sleeve 20 and the shock absorber mounting seat 42 fixed on the inner guide sleeve 20 . The positioning seat 41 is fixed on the outer guide sleeve through the support 41a, and the positioning seat 41, the support 41a and the outer guide sleeve 10 can be connected by bolts.

Specifically, the outer guide sleeve 10 includes an end portion 11 and a guide portion 12 , and an inner boss 13 for limiting the inner guide sleeve 20 is provided at the junction of the end portion 11 and the guide portion 12 . The end portion 11 and the guide portion 12 may be connected together by welding. The inner guide sleeve 20 is located in the guide portion 12 . One end of the screw 31 is provided with a head 32 for matching with the wrench 3 (see Fig. 3 ) and a flange 33 sandwiched in the end 11 of the outer guide sleeve 10, and the head 32 extends out of the The end portion 11, the inner guide sleeve 20 is threadedly connected with the screw rod 31. A guide plate 43 is also provided on the outer guide sleeve 10 corresponding to the positioning seat 41 to facilitate the installation of the shock absorber.

Specifically, the inner guide sleeve 20 is provided with a threaded sleeve 21, and the inner and outer walls of the threaded sleeve 21 are provided with threads. The threaded sleeve 21 is connected with the inner guide sleeve 20 through an elastic pin 22 to prevent the threaded sleeve 21 from loosening. One end of the threaded sleeve 21 is provided with a step 23 matched with the inner boss 13 of the outer guide bush 10, a movable spacer 24 is arranged between the step 23 and the inner boss 13, and the inner guide bush 20 The active force of the step 23 on the top is transmitted to the inner boss 13 of the outer guide sleeve 10 through the movable spacer 24, which can increase the stress surface of the end face of the threaded sleeve 21 and reduce the gap between the step 23 on the inner guide sleeve 20 and the outer guide sleeve 10. The impact between the inner bosses 13 prevents the deformation of the end faces of the threaded sleeves 21 .

Further, the flange 33 of the screw rod 31 is fixed in the end 11 of the outer guide sleeve 10 through a snap spring 51 and a thrust bearing 52, and the thrust bearing 52 is located between the flange 33 and the outer guide sleeve 10. Between the inner bosses 13 of the guide sleeve 10, the screw rod 31 is axially limited. A wear-resistant retaining ring 53 is provided between the snap ring 51 and the flange 33 of the screw rod 31 to prevent the thrust bearing 52 from wearing out the snap ring 51 .

In order to prevent the screw rod 31 from coming out of the threaded sleeve 21 , the other end of the screw rod 31 is further provided with a stop ring 34 and a screw 35 .

Fig. 3 shows the use state of the spring compression tooling of this embodiment, the shock absorber spring shown in the figure is in a compressed state. As shown in FIG. 3 , the shock absorber mount 42 hooks the end cover of the spring 1 a of the shock absorber 1 , and the positioning seat 41 hooks the lower end of the shock absorber 1 . Use the electric wrench 3 to screw the end 32 of the screw 31, the rotation of the screw 31 causes the inner guide sleeve 20 to generate relative movement in the outer guide sleeve 10, thereby shortening the distance between the shock absorber mounting seat 42 and the positioning seat 41 , and then compress the spring 1a to a specified length. At this time, the step 23 on the inner guide sleeve 20 is against the inner flange 13 of the outer guide sleeve 10, the torque generated by tightening the screw rod 31 exceeds the torque set by the electric wrench 1, the electric wrench 1 stops tightening, and the shock absorber spring 1a is kept at the specified length. Compared with the prior art, the spring compression tooling is small in size, simple in structure, and easy to operate, and is suitable for online spring compression of shock absorbers on automobile rear axle assembly lines. Rear axle assembly efficiency. Obviously, the spring compression tooling of the present utility model can be used in the assembly line that needs to compress the spring in the industrial production automation equipment, and can also be used in the production line that needs to compress the size of the fixer after the spring is compressed, so as to meet the requirements of the assembly process.

Claims (9)

1. A spring compression tooling, characterized in that: comprising an outer guide sleeve, an inner guide sleeve, a screw rod, a positioning seat fixed on one end of the shock absorber fixed on the outer guide sleeve and fixed on the inner guide sleeve The shock absorber mounting seat on the sleeve, the inner guide sleeve is threadedly connected with the screw rod, the outer guide sleeve includes an end portion and a guide portion, the inner guide sleeve is located in the guide portion, the end portion and the guide portion The connection of the guide part is provided with an inner boss that limits the position of the inner guide sleeve, and one end of the screw rod is provided with an end for matching with a wrench and a flange clamped in the end of the outer guide sleeve , the end protrudes from the end. 2. The spring compression tool according to claim 1, characterized in that: the inner guide sleeve is provided with a threaded sleeve, the inner and outer walls of the threaded sleeve are provided with threads and one end of the threaded sleeve is provided with a threaded sleeve corresponding to the inner boss. Matching stairs. 3. The spring compression tool according to claim 2, wherein the threaded sleeve is connected to the inner guide sleeve through an elastic pin. 4. The spring compression tool according to claim 3, characterized in that: one end of the threaded sleeve is provided with a step matched with the inner boss of the outer guide sleeve, and the gap between the step and the inner boss is With movable spacer. 5. The spring compression tool according to claim 1, characterized in that: the flange of the screw rod is fixed in the end of the outer guide sleeve through a circlip and a thrust bearing, and the thrust bearing is located on the between the flange of the screw and the inner boss of the outer guide sleeve. 6 . The spring compression tool according to claim 5 , wherein a wear-resistant retaining ring is provided between the circlip and the flange of the screw rod. 7 . 7. The spring compression tool according to any one of claims 2-6, characterized in that: the other end of the screw rod is provided with a stop ring and a screw. 8. The spring compression tool according to any one of claims 1-6, wherein the sliding surface between the outer guide sleeve and the inner guide sleeve is a rectangular surface. 9. The spring compression tool according to any one of claims 1-6, wherein a guide plate is provided on the outer guide sleeve corresponding to the positioning seat. the

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