Bushing press fitting assembly

Abstract

The utility model discloses a bushing press-fitting assembly which comprises a press-fitting upper die, a press-fitting fixing seat, a press-fitting sliding block, an elastic recovery piece and a plurality of press-fitting lower dies, a cavity with an upward opening is formed in the press-fitting fixing seat, and the press-fitting sliding block can move up and down in the cavity through the elastic recovery piece; the press-fitting lower dies penetrate through the openings and extend into the cavities to be detachably connected with the press-fitting sliding blocks, the upper portions of the press-fitting lower dies are provided with clamping parts connected with the linings in a clamped mode, and the press-fitting lower dies are provided with clamping parts of different shapes and specifications; the press-fitting upper die and the press-fitting fixing seat are arranged up and down, the lower end face of the press-fitting upper die is a press-fitting upper end face, the upper end face of the press-fitting fixing seat is a press-fitting lower end face, and the press-fitting upper end face and the press-fitting lower end face are oppositely arranged up and down. According to the utility model, dismounting and replacing steps and time can be reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a bushing press-fit assembly. Background Art

[0002] Shock absorbers are widely used in automobiles to dampen the vibrations of springs rebounding after absorbing shock, as well as impacts from the road. They accelerate the attenuation of frame and body vibrations, improving the vehicle's ride smoothness. While shock-absorbing springs can filter out road vibrations when driving over uneven surfaces, the springs themselves still experience reciprocating motion, and shock absorbers are designed to dampen this spring bounce. During the assembly and production process of shock absorbers, it is necessary to press-fit the rubber bushing into the lifting ring seat of the shock absorber. Generally, a bushing press is used to press-fit the rubber bushing into the lifting ring seat of the shock absorber. The bushing press generally includes a bushing press assembly and a drive assembly installed on a frame. The bushing press assembly generally includes a press-fit fixing seat and a press-fit upper die. When working, the lifting ring seat of the shock absorber is generally placed in the press-fit fixing seat, and the bushing is placed in the lifting ring seat. The drive assembly drives the press-fit upper die to press-fit the bushing into the lifting ring seat. Since different models have bushings of different shapes and sizes, when press-fitting different bushings, the entire press-fit fixing seat needs to be disassembled and replaced from the frame each time. The replacement work is relatively cumbersome and the work efficiency is low. Utility Model Content

[0003] The utility model aims to provide a bushing press-fitting assembly, aiming to solve the problems of complicated replacement work and low work efficiency in the existing bushing press-fitting assembly when press-fitting different bushings.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a bushing press-fitting assembly, comprising a press-fitting upper die, a press-fitting fixing seat, a press-fitting slider, an elastic recovery member, and several press-fitting lower dies, wherein the press-fitting fixing seat is provided with a cavity opening upward, and the press-fitting slider can move up and down in the cavity through the elastic recovery member; the press-fitting lower die extends into the cavity through the opening and is detachably connected to the press-fitting slider, and the upper part of the press-fitting lower die is provided with a clamping portion clamped with the bushing, and each of the press-fitting lower dies has a clamping portion of different shapes and specifications; the press-fitting upper die and the press-fitting fixing seat are arranged up and down, the lower end face of the press-fitting upper die is the press-fitting upper end face, and the upper end face of the press-fitting fixing seat is the press-fitting lower end face, and the press-fitting upper end face and the press-fitting lower end face are arranged opposite to each other up and down.

[0005] Preferably, the elastic recovery member includes a spring, the upper end of which is fixedly connected to the lower end of the press-fit slider; it also includes a mounting plate, and the press-fit fixing seat is fixedly mounted on the mounting plate; the mounting plate is also provided with a spring seat, and the lower end of the spring is sleeved on the spring seat.

[0006] Preferably, a guide slot is provided on the side wall of the press-fitting fixing seat, and a guide column is provided on the side wall of the press-fitting sliding block, and the guide column is slidably disposed in the guide slot.

[0007] Preferably, an abutment step is provided in the cavity, and a side wall of the press-fitting slider is provided with an abutment edge extending outward, and the abutment edge abuts against the abutment step to prevent the press-fitting slider from escaping from the opening of the cavity.

[0008] Preferably, it further includes a screw, the press-fitting lower die is provided with a through hole passing through the upper and lower end surfaces thereof, the press-fitting slider is provided with a threaded hole corresponding to the position of the through hole, and the screw passes through the through hole and is screwed into the threaded hole.

[0009] Preferably, the lower end surface of the press-fitting lower die is provided with a boss, and the upper end surface of the press-fitting slider is provided with a groove, and the boss and the groove are detachably engaged.

[0010] Preferably, both the press-fit upper end surface and the press-fit lower end surface are provided with avoidance slopes, and the two avoidance slopes are located on the same side.

[0011] The beneficial effects of the present invention are as follows: the bushing press-fitting assembly provided by the above technical solution can select a suitable press-fitting lower die according to the shape and size of the shock absorber bushing, place the shock absorber's hanging ring seat through the press-fitting lower die on the press-fitting lower end face, clamp the bushing with the clamping part of the press-fitting lower die, and press the bushing downward into the hanging ring seat with the press-fitting upper end face of the press-fitting upper die. The bushing drives the press-fitting lower die and the press-fitting slider to overcome the elastic force of the elastic recovery member, and the cavity in the press-fitting fixed seat moves downward. The press-fitting upper end face abuts against the press-fitting lower end face, and the bushing can be pressed into the hanging ring seat. When different bushings need to be replaced, the press-fitting lower die is separated from the press-fitting slider, a suitable press-fitting lower die is selected, and then the press-fitting lower die is connected to the press-fitting slider. When replacing different bushings, there is no need to disassemble and replace the press-fitting fixed seat, the press-fitting slider, the elastic recovery member and the press-fitting lower die at the same time, which reduces the steps and time of disassembly and replacement and improves work efficiency.

[0012] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Shown is a cross-sectional view of the bushing press assembly.

[0014] Figure 2 The figure shows a cross-sectional view of the press-fit lower die, press-fit slider, and press-fit fixing seat after separation. DETAILED DESCRIPTION

[0015] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0016] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0017] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0018] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0019] refer to Figure 1 、 Figure 2A bushing press-fitting assembly includes a press-fitting upper die 400, a press-fitting fixed seat 100, a press-fitting slider 200, an elastic recovery member 210, and several press-fitting lower dies 300. The press-fitting fixed seat 100 is provided with an upwardly opening cavity 140. The press-fitting slider 200 can move up and down in the cavity 140 through the elastic recovery member 210; the press-fitting lower die 300 extends into the cavity 140 through the opening and is detachably connected to the press-fitting slider 200. The upper part of the press-fitting lower die 300 is provided with a clamping portion 310 that is clamped with the bushing, and each press-fitting lower die 300 has a clamping portion 310 of different shapes and specifications; the press-fitting upper die 400 and the press-fitting fixing seat 100 are arranged up and down, and the lower end face of the press-fitting upper die 400 is the press-fitting upper end face 420, and the upper end face of the press-fitting fixing seat 100 is the press-fitting lower end face 130, and the press-fitting upper end face 420 and the press-fitting lower end face 130 are arranged opposite to each other up and down. The pressing lower die 300 can be selected according to the shape and size of the shock absorber bushing, and the suspension ring seat of the shock absorber can be placed on the pressing lower end face 130 through the pressing lower die 300, and the bushing is clamped with the clamping part 310 of the pressing lower die 300. The pressing upper end face 420 of the pressing upper die 400 presses the bushing downward into the suspension ring seat. The bushing drives the pressing lower die 300 and the pressing slider 200 to overcome the elastic force of the elastic recovery part 210, and the cavity 140 in the press-fitting fixed seat 100 moves downward. The pressing upper end face 420 abuts against the pressing lower end face 130, and the bushing can be pressed into the suspension ring seat. When a different bushing needs to be replaced, the pressing lower die 300 is separated from the pressing slider 200, and a suitable pressing lower die 300 is selected, and then the pressing lower die 300 is connected to the pressing slider 200. When replacing a different bushing, there is no need to disassemble and replace the press-fitting holder 100, press-fitting slider 200, elastic recovery member 210, and press-fitting lower die 300 at the same time, thereby reducing the steps and time required for disassembly and replacement and improving work efficiency. The bushing press-fitting machine may include a frame and a drive assembly, wherein the press-fitting holder 100 and the drive assembly are fixedly mounted on the frame, and the drive assembly drives the press-fitting upper die 400 to move up and down. The drive assembly may use a telescopic motor or a pneumatic cylinder.

[0020] In one embodiment, the elastic recovery member 210 includes a spring, the upper end of which is fixedly connected to the lower end of the press-fit slider 200. A mounting plate 221 is also included, to which the press-fit fixing seat 100 is fixedly mounted. The mounting plate 221 is further provided with a spring seat 220, onto which the lower end of the spring is sleeved. The elastic recovery member 210 can be a spring, with the upper and lower ends of the spring fixedly connected to the lower end of the press-fit slider 200 and the spring seat 220, respectively.

[0021] In one embodiment, a guide slot 110 is formed on the side wall of the press-fitting fixture 100, and a guide post 240 is formed on the side wall of the press-fitting slider 200. The guide post 240 is slidably disposed in the guide slot 110. When the press-fitting slider 200 moves up and down in the cavity 140, the guide post 240 is slidably disposed in the guide slot 110, thereby guiding the press-fitting slider 200 and preventing the press-fitting slider 200 from rotating during the up and down movement, which would cause the press-fitting lower die 300 and the bushing to rotate.

[0022] In one embodiment, the cavity 140 is provided with an abutment step 120, and the sidewalls of the press-fitting slider 200 are provided with an outwardly extending abutment edge 230. The abutment edge 230 abuts against the abutment step 120 to prevent the press-fitting slider 200 from escaping from the opening of the cavity 140. To prevent the press-fitting slider 200 from escaping from the opening of the cavity 140, the cavity 140 is provided with an abutment step 120, and the sidewalls of the press-fitting slider 200 are provided with an outwardly extending abutment edge 230. The abutment edge 230 abuts against the abutment step 120. During installation, the press-fitting slider 200 can be inserted into the cavity 140 from the bottom up.

[0023] In one embodiment, a screw 500 is further included. The press-fitting lower die 300 is provided with a through hole 320 extending through its upper and lower end surfaces. The press-fitting slider 200 is provided with a threaded hole 260 corresponding to the position of the through hole 320. The screw 500 passes through the through hole 320 and screws into the threaded hole 260. To facilitate the removal and installation of the press-fitting lower die 300 and the press-fitting slider 200, the screw 500 passes through the through hole 320 and screws into the threaded hole 260.

[0024] In one embodiment, the lower end surface of the press-fit lower die 300 is provided with a boss 330, and the upper end surface of the press-fit slider 200 is provided with a groove 250. The boss 330 and the groove 250 are detachably engaged. The press-fit fixing base 100 is tubular, and the press-fit lower die 300 and the press-fit slider 200 are generally cylindrical. To improve the coaxiality of the press-fit lower die 300 and the press-fit slider 200 after connection, the boss 330 and the groove 250 are also circumferential. Positioning members may also be provided on the boss 330 and the groove 250 for aligning the through hole 320 with the threaded hole 260.

[0025] In one embodiment, both the press-fit upper end surface 420 and the press-fit lower end surface 130 are provided with an avoidance slope 410, and both avoidance slopes 410 are located on the same side. The eyebolt is fixedly connected to the bottom of the shock absorber cylinder. When press-fitting the bushing, it is necessary to avoid the bottom of the shock absorber cylinder. Both the press-fit upper end surface 420 and the press-fit lower end surface 130 are provided with an avoidance slope 410, and both avoidance slopes 410 are located on the same side.

[0026] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A bushing press assembly, characterized in that: It includes a press-fitting upper die, a press-fitting fixing seat, a press-fitting slider, an elastic recovery member, and several press-fitting lower dies. The press-fitting fixing seat is provided with a cavity opening upward, and the press-fitting slider can move up and down in the cavity through the elastic recovery member; the press-fitting lower die extends into the cavity through the opening and is detachably connected to the press-fitting slider, and the upper part of the press-fitting lower die is provided with a clamping part clamped with the bushing, and each of the press-fitting lower dies has a clamping part of different shapes and specifications; the press-fitting upper die and the press-fitting fixing seat are arranged up and down, the lower end face of the press-fitting upper die is the press-fitting upper end face, the upper end face of the press-fitting fixing seat is the press-fitting lower end face, and the press-fitting upper end face and the press-fitting lower end face are arranged opposite to each other up and down.

2. A bushing press assembly according to claim 1, characterized in that: The elastic recovery member includes a spring, the upper end of which is fixedly connected to the lower end of the press-fit slider; it also includes a mounting plate, and the press-fit fixing seat is fixedly mounted on the mounting plate; the mounting plate is also provided with a spring seat, and the lower end of the spring is sleeved on the spring seat.

3. The bushing press assembly according to claim 1, characterized in that: A guide slot is provided on the side wall of the press-fit fixing seat, and a guide column is provided on the side wall of the press-fit sliding block. The guide column is slidably arranged in the guide slot.

4. The bushing press assembly according to claim 1, characterized in that: An abutment step is provided in the cavity, and a side wall of the press-fitting slider is provided with an abutment edge extending outward, and the abutment edge abuts against the abutment step to prevent the press-fitting slider from escaping from the opening of the cavity.

5. The bushing press assembly according to claim 1, characterized in that: It also includes screws. The press-fit lower die is provided with through holes running through its upper and lower end surfaces. The press-fit slider is provided with threaded holes corresponding to the positions of the through holes. The screws pass through the through holes and are screwed into the threaded holes.

6. A bushing press assembly according to claim 5, characterized in that: The lower end surface of the press-fitting lower die is provided with a boss, and the upper end surface of the press-fitting slider is provided with a groove, and the boss and the groove are detachably engaged.

7. The bushing press assembly according to claim 1, characterized in that: The press-fit upper end surface and the press-fit lower end surface are both provided with avoidance inclined surfaces, and the two avoidance inclined surfaces are located on the same side.

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