Shock absorber spring press fitting device

Abstract

The utility model discloses a shock absorber spring press-fitting device which comprises a frame body, a driving assembly and a press-fitting assembly, the driving assembly and the press-fitting assembly are arranged on the frame body, the press-fitting assembly comprises a clamping seat, a spring containing cavity used for containing and clamping a spring is formed in the clamping seat, a plurality of spring pressing heads are arranged in the clamping seat, and the driving assembly and the press-fitting assembly are arranged on the frame body. The spring pressing head is rotatably installed in the clamping base through a rotating shaft, an elastic reset piece is further arranged on the clamping base and connected with the rotating shaft and the clamping base, and when the spring pressing head conducts press fitting on a spring, the rotating shaft drives the spring pressing head to overcome the elastic force of the elastic reset piece to rotate. And the driving assembly drives the clamping seat to move. The spring pressing head can overcome the elastic force of the elastic reset piece to rotate by a certain angle, the stress face of the spring pressing head and the spring is enlarged, the pressure intensity of the spring pressing head on the spring is reduced, and the possibility that the spring pressing head scratches the paint face on the outer layer of the spring is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a spring press-fitting device for shock absorbers. Background Art

[0002] Shock absorbers are used to suppress the oscillation caused by the rebound of a spring after absorbing shock, as well as the impact from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the frame and body, thereby improving the smoothness of the vehicle's ride. When driving over uneven roads, although the shock-absorbing spring can filter out the vibrations from the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring bouncing. During the assembly and production process of the shock absorber, the spring needs to be inserted into the shock absorber. The lower end of the spring is restrained by the spring disc, and the lower end of the spring is restrained by the tower top. The tower top and the threaded section at the upper end of the shock absorber's piston rod are locked with a nut. Before the nut is tightened, a spring pressing device is required to press the spring. The spring pressing head in existing spring pressing devices is fixed horizontally, while the shock absorber spring is a coil spring that rises in a spiral. Only a portion of the horizontally fixed spring pressing head presses on the spring, increasing the pressure and easily causing scratches on the outer paint surface of the spring. Utility Model Content

[0003] The utility model aims to provide a spring press-fitting device for a shock absorber, aiming to solve the problem that the paint surface of the outer layer of the spring is easily scratched when the existing spring press-fitting device press-fits the spring.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a shock absorber spring pressing device, including a frame, and a driving assembly and a pressing assembly arranged on the frame, the pressing assembly including a clamping seat, the clamping seat is provided with a spring accommodating cavity for placing and clamping the spring, the clamping seat is provided with a plurality of spring pressing heads, the spring pressing heads are rotatably installed in the clamping seat through a rotating shaft, the clamping seat is also provided with an elastic return member, the elastic return member is respectively connected to the rotating shaft and the clamping seat, when the spring pressing head presses the spring, the rotating shaft drives the spring pressing head to overcome the elastic force of the elastic return member to rotate; the driving assembly drives the clamping seat to move.

[0005] Preferably, there are two spring pressure heads, the spring accommodating cavity is hollow cylindrical, and the two spring pressure heads are respectively arranged on the left and right sides of the spring accommodating cavity; there are two elastic return parts, and the two ends of the elastic return parts are respectively connected to the rotating shaft and the clamping seat; the two spring pressure heads rotate in opposite directions.

[0006] Preferably, the clamping seat includes a left clamping seat and a right clamping seat, and the left clamping seat and the right clamping seat are respectively provided with a left arc-shaped accommodating cavity and a right arc-shaped accommodating cavity, and the spring accommodating cavity is formed by the left arc-shaped accommodating cavity and the right arc-shaped accommodating cavity, and the spring pressure head includes a left spring pressure head and a right spring pressure head, and the left spring pressure head and the right spring pressure head are respectively rotatably provided in the left arc-shaped accommodating cavity and the right arc-shaped accommodating cavity through a left rotating shaft and a right rotating shaft; the driving assembly includes an upper and lower driving assembly and a left and right driving assembly, and the left and right driving assemblies drive the left clamping seat and the right clamping seat to approach or move away from each other, and the upper and lower driving assemblies drive the left clamping seat and the right clamping seat to move up and down.

[0007] Preferably, the pressing assembly also includes a swing arm and a limit block, the left spring pressure head is arranged in the middle of the left arc-shaped accommodating cavity, the swing arm and the left spring pressure head are respectively arranged on the left and right sides of the left clamping seat, and the left rotating shaft passes through the left clamping seat and is coaxially rotated with the swing arm; the swing arm abuts against the limit block, and the swing arm is provided with a stop end face and a rotating curved surface, and the stop end face and the rotating curved surface are transitioned by an arc, and the stop end face abuts against the side wall of the limit block, so that the left spring pressure head can only rotate in one direction; the two ends of the elastic reset member are respectively connected to the limit block and the swing arm.

[0008] Preferably, the elastic reset member includes a reset spring, the limit block and the swing arm are both provided with screws, and the two ends of the reset spring are respectively connected to the two screws.

[0009] Preferably, the left spring pressure head and the right spring pressure head are both plate-shaped, and impact buffer pads are provided on the side walls of the left spring pressure head and the right spring pressure head facing the spring.

[0010] Preferably, the bottom surface of the left spring pressing head and the bottom surface of the right spring pressing head are both press-fitting end surfaces, and a press-fitting buffer pad is provided on the press-fitting end surfaces.

[0011] The beneficial effects of the present utility model are as follows: the above technical solution provides a shock absorber spring pressing device, the spring accommodating cavity clamps the spring, the driving assembly drives the clamping seat to move, and drives the spring pressing head to move, thereby pressing the spring. During pressing, the spring pressing head can overcome the elastic force of the elastic return part and rotate at a certain angle, the force-bearing surface between the spring pressing head and the spring is increased, the pressure of the spring pressing head on the spring is reduced, and the possibility of the spring pressing head scratching the paint surface of the outer layer of the spring is reduced.

[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 top view of the shock absorber spring press-fit device and spring.

[0014] Figure 2 The figure shows a schematic diagram of the swing arm in a normal state where the stop end face abuts against the limit plate.

[0015] Figure 3 The figure shows a schematic diagram of the swing arm in a rotating state where the rotating curved surface abuts against the limit plate.

[0016] Figure 4 The diagram shows the left spring pressing head and the right spring pressing head when pressing the spring. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] refer to Figures 1 to 4, a shock absorber spring pressing device includes a frame, a driving assembly and a pressing assembly arranged on the frame, the pressing assembly includes a clamping seat, a spring accommodating cavity for placing and clamping a spring 300, a plurality of spring pressing heads are provided in the clamping seat, the spring pressing heads are rotatably installed in the clamping seat through a rotating shaft, and an elastic return member is also provided on the clamping seat, the elastic return member is respectively connected to the rotating shaft and the clamping seat, and when the spring pressing head presses the spring 300, the rotating shaft drives the spring pressing head to overcome the elastic force of the elastic return member to rotate; the driving assembly drives the clamping seat to move. The spring accommodating cavity clamps the spring 300, and the driving assembly drives the clamping seat to move, driving the spring pressure head to move, thereby press-fitting the spring 300. During press-fitting, the spring pressure head can overcome the elastic force of the elastic return part and rotate at a certain angle. The force-bearing surface between the spring pressure head and the spring 300 is increased, reducing the pressure of the spring pressure head on the spring 300 and reducing the possibility of the spring pressure head scratching the paint surface of the outer layer of the spring 300.

[0022] In one embodiment, there are two spring pressure heads, and the spring receiving cavity is hollow cylindrical. The two spring pressure heads are respectively located on the left and right sides of the spring receiving cavity. There are two elastic return members, each of which is connected to the rotating shaft and the clamping seat at both ends. The two spring pressure heads rotate in opposite directions. Spring 300 is a coil spring, and spring 300 rises in a spiral. From the left side view, the spring pressure head on the left side needs to rotate counterclockwise by a certain angle. From the right side view, the spring pressure head on the right side also needs to rotate counterclockwise by a certain angle. Therefore, from the front view, the two spring pressure heads rotate in opposite directions.

[0023] In one embodiment, the clamping seat includes a left clamping seat 100 and a right clamping seat 200, and the left clamping seat 100 and the right clamping seat 200 are respectively provided with a left arc-shaped accommodating cavity 150 and a right arc-shaped accommodating cavity, and the spring accommodating cavity is formed by the left arc-shaped accommodating cavity 150 and the right arc-shaped accommodating cavity, and the spring pressure head includes a left spring pressure head 110 and a right spring pressure head 210, and the left spring pressure head 110 and the right spring pressure head 210 are respectively rotatably arranged in the left arc-shaped accommodating cavity 150 and the right arc-shaped accommodating cavity through the left rotating shaft 120 and the right rotating shaft 220; the driving assembly includes an upper and lower driving assembly and a left and right driving assembly, and the left and right driving assemblies drive the left clamping seat 100 and the right clamping seat 200 to approach or move away from each other, and the upper and lower driving assemblies drive the left clamping seat 100 and the right clamping seat 200 to move up and down. The left arc-shaped accommodating cavity 150 and the right arc-shaped accommodating cavity are both semicircular, and the spring accommodating cavity is formed by the left arc-shaped accommodating cavity 150 and the right arc-shaped accommodating cavity. The left and right driving components can include left and right guide rails and left and right driving cylinders. The left clamping seat 100 and the right clamping seat 200 are respectively arranged on the left and right guide rails. The left and right driving cylinders drive the left clamping seat 100 and the right clamping seat 200 to approach or move away from each other. The upper and lower driving components can include upper and lower guide rails and upper and lower driving cylinders. The left clamping seat 100, the right clamping seat 200 and the left and right guide rails are arranged on the upper and lower guide rails through the mounting plate. The upper and lower driving cylinders drive the mounting plate to move up and down, thereby driving the left spring pressure head 110 and the right spring pressure head 210 to move up and down, thereby realizing the pressing or loosening of the spring 300.

[0024] In one embodiment, the press assembly also includes a swing arm 130 and a limit block 160, the left spring pressure head 110 is arranged in the middle of the left arc-shaped accommodating cavity 150, the swing arm 130 and the left spring pressure head 110 are respectively arranged on the left and right sides of the left clamping seat 100, and the left rotating shaft 120 passes through the left clamping seat 100 and is coaxially rotated with the swing arm 130; the swing arm 130 is abutted against the limit block 160, and the swing arm 130 is provided with a stop end face 131 and a rotating curved surface 132, and the stop end face 131 and the rotating curved surface 132 are transitioned by an arc, and the stop end face 131 is abutted against the side wall of the limit block 160, so that the left spring pressure head 110 can only rotate in one direction; the two ends of the elastic reset member are respectively connected to the limit block 160 and the swing arm 130. Under normal conditions, the left spring pressing head 110 is in a horizontal position, at which point the stop end face 131 abuts against the side wall of the limit block 160, allowing the left spring pressing head 110 to rotate in only one direction. When the spring 300 is press-fitted, the left spring pressing head 110 rotates counterclockwise by a certain angle, driving the swing arm 130 counterclockwise via the left rotating shaft 120. The rotating curved surface 132 of the swing arm 130 abuts against the side wall of the limit block 160. After the spring 300 is press-fitted, the left spring pressing head 110 leaves the spring 300. Under the elastic force of the elastic return member, the swing arm 130 rotates clockwise, and the stop end face 131 abuts against the side wall of the limit block 160. At this point, the left spring pressing head 110 returns to a horizontal position. The right clamping seat 200 is also provided with a swing arm, a limit block, and an elastic return member, the structure of which is similar to that of the left clamping seat 100.

[0025] In one embodiment, the elastic return member includes a return spring 180. The limit block 160 and the swing arm 130 are both provided with screws 170. The two ends of the return spring 180 are respectively connected to the two screws 170. The elastic return member uses a return spring 180, and the two ends of the return spring 180 are respectively connected to the two screws 170.

[0026] In one embodiment, the left spring pressing head 110 and the right spring pressing head 210 are both plate-shaped, and impact cushioning pads 140 are provided on the side walls of the left spring pressing head 110 and the right spring pressing head 210 facing the spring 300. To prevent the left spring pressing head 110 and the right spring pressing head 210 from scratching the paint surface of the outer layer of the spring 300 when the left clamping seat 100 and the right clamping seat 200 are close to each other, impact cushioning pads 140 are provided on the side walls of the left spring pressing head 110 and the right spring pressing head 210 facing the spring 300.

[0027] In one embodiment, the bottom surfaces of the left and right spring pressing heads 110 and 210 serve as press-fitting end surfaces, and a press-fitting buffer pad is provided on each of the press-fitting end surfaces. When the left and right spring pressing heads 110 and 210 are press-fitting the spring 300, the bottom surfaces of the left and right spring pressing heads 110 and 210 serve as press-fitting end surfaces. To prevent the press-fitting end surfaces from scratching the painted surface of the spring 300, a press-fitting buffer pad is provided on the press-fitting end surfaces.

[0028] 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 shock absorber spring press-fitting device, characterized in that: It includes a frame, and a driving assembly and a pressing assembly arranged on the frame. The pressing assembly includes a clamping seat, a spring accommodating cavity for placing and clamping a spring is provided in the clamping seat, a plurality of spring pressing heads are provided in the clamping seat, and the spring pressing heads are rotatably installed in the clamping seat through a rotating shaft. An elastic reset part is also provided on the clamping seat, and the elastic reset part is respectively connected to the rotating shaft and the clamping seat. When the spring pressure head presses the spring, the rotating shaft drives the spring pressure head to overcome the elastic force of the elastic reset part to rotate; the driving assembly drives the clamping seat to move.

2. A shock absorber spring press-fitting device according to claim 1, characterized in that: There are two spring pressure heads, and the spring accommodating cavity is hollow cylindrical. The two spring pressure heads are respectively arranged on the left and right sides of the spring accommodating cavity; there are two elastic return parts, and the two ends of the elastic return parts are respectively connected to the rotating shaft and the clamping seat; the two spring pressure heads rotate in opposite directions.

3. A shock absorber spring press-fitting device according to claim 2, characterized in that: The clamping seat includes a left clamping seat and a right clamping seat, and the left clamping seat and the right clamping seat are respectively provided with a left arc-shaped accommodating cavity and a right arc-shaped accommodating cavity, and the spring accommodating cavity is formed by the left arc-shaped accommodating cavity and the right arc-shaped accommodating cavity. The spring pressure head includes a left spring pressure head and a right spring pressure head, and the left spring pressure head and the right spring pressure head are respectively rotatably arranged in the left arc-shaped accommodating cavity and the right arc-shaped accommodating cavity through a left rotating shaft and a right rotating shaft; the driving assembly includes an upper and lower driving assembly and a left and right driving assembly, and the left and right driving assemblies drive the left clamping seat and the right clamping seat to approach or move away from each other, and the upper and lower driving assemblies drive the left clamping seat and the right clamping seat to move up and down.

4. A shock absorber spring press-fitting device according to claim 3, characterized in that: The pressing assembly also includes a swing arm and a limit block. The left spring pressure head is arranged in the middle of the left arc-shaped accommodating cavity. The swing arm and the left spring pressure head are respectively arranged on the left and right sides of the left clamping seat. The left rotating shaft passes through the left clamping seat and is coaxially rotated with the swing arm; the swing arm is in contact with the limit block, and the swing arm is provided with a stop end face and a rotating curved surface. The stop end face and the rotating curved surface are transitioned by an arc, and the stop end face is in contact with the side wall of the limit block, so that the left spring pressure head can only rotate in one direction; the two ends of the elastic reset member are respectively connected to the limit block and the swing arm.

5. A shock absorber spring press-fitting device according to claim 4, characterized in that: The elastic reset member includes a reset spring, and screws are provided on the limit block and the swing arm. The two ends of the reset spring are respectively connected to the two screws.

6. A shock absorber spring press-fitting device according to claim 2, characterized in that: The left spring pressure head and the right spring pressure head are both plate-shaped, and impact buffer pads are provided on the side walls of the left spring pressure head and the right spring pressure head facing the spring.

7. A shock absorber spring press-fitting device according to claim 2, characterized in that: The bottom surface of the left spring pressing head and the bottom surface of the right spring pressing head are both press-fitting end surfaces, and a press-fitting buffer pad is provided on the press-fitting end surfaces.

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