Assembly mechanism for positioning pad at upper end of shock absorber piston rod

Abstract

The invention discloses an assembly mechanism for a positioning pad at the upper end of a shock absorber piston rod, comprising a threaded positioning mechanism connected to the shock absorber piston rod, and also comprising a frame, a fixing mechanism, a lifting mechanism and a limiting mechanism; the fixing mechanism is arranged below the frame and is used to fix the shock absorber outer cylinder; the lifting mechanism is arranged on the frame above the fixing mechanism and is used to drive the shock absorber piston rod to rise and fall in a vertical direction; the limiting mechanism is arranged on the lifting mechanism and is used to fix the positioning pad; the lifting mechanism comprises a top plate and a bottom plate arranged below the top plate, the top plate and the bottom plate are connected by a guide column, and the top plate is connected to the frame; the assembly mechanism of the invention only requires one person to install the shock absorber on the fixing mechanism, and subsequent work is fully automated without manual operation, thereby reducing the labor intensity of workers, improving work efficiency, having high safety, high degree of automation, and simple structure and convenient operation.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to an assembly mechanism for a positioning pad at the upper end of a shock absorber piston rod. Background Art

[0002] In order to quickly attenuate the vibration of the frame and body and improve the smoothness and comfort of the car's driving, the car suspension system is generally equipped with shock absorbers; shock absorbers are vulnerable parts during the use of the car. The working quality of the shock absorbers will directly affect the stability of the car's driving and the life of other parts. The positioning pad is one of the indispensable parts of the shock absorber, which affects the comfort of the vehicle during driving. The shock absorber includes a shock absorber outer cylinder and a shock absorber piston rod. During the assembly of the shock absorber, the positioning pad needs to be installed on the shock absorber piston rod; the positioning pad and the loading end of the shock absorber piston rod are assembled by interference fit. The current assembly method is mainly through manual assembly or manual assembly with a hydraulic press. The hydraulic press has high energy consumption, is inconvenient to operate, and requires at least two people to complete the assembly. Therefore, it can be seen that the traditional assembly process has high labor intensity, low efficiency, and safety hazards. Summary of the invention

[0003] The invention provides an assembly mechanism for the upper end positioning pad of a shock absorber piston rod in order to solve the technical problems of high labor intensity and low efficiency in the traditional positioning pad assembly process.

[0004] The technical solution adopted by the present invention is: an assembly mechanism for a positioning pad at the upper end of a shock absorber piston rod, comprising a threaded positioning mechanism connected to the shock absorber piston rod, and further comprising:

[0005] frame;

[0006] A fixing mechanism, arranged below the frame and used for fixing the outer cylinder of the shock absorber;

[0007] A lifting mechanism is arranged on the frame above the fixing mechanism and is used to drive the shock absorber piston rod to move up and down in the vertical direction;

[0008] A limiting mechanism is arranged on the lifting mechanism and is used to fix the positioning pad;

[0009] The lifting mechanism includes a top plate and a bottom plate arranged below the top plate, the top plate and the bottom plate are connected by a guide column, the top plate is connected to the frame, and a first power mechanism is arranged on the top plate, which can drive the threaded positioning mechanism to rise and fall in the vertical direction.

[0010] During assembly, the outer cylinder of the shock absorber is installed on the fixing mechanism, the fixing mechanism fixes the outer cylinder of the shock absorber, and then the positioning pad is installed on the shock absorber piston rod. The positioning pad on the shock absorber piston rod can be fixed by the limiting mechanism, and the shock absorber piston rod is connected to the threaded positioning mechanism. The lifting mechanism drives the shock absorber piston rod to rise through the threaded positioning mechanism. Since the limiting mechanism limits and fixes the positioning pad on the shock absorber piston rod, the positioning pad and the shock absorber piston rod are relatively displaced during the rising process of the shock absorber piston rod, and the positioning pad can be clamped on the shock absorber piston rod to complete the assembly process. The assembly mechanism of the present invention only requires one person to install the shock absorber on the fixing mechanism, and the subsequent work is fully automated without manual operation, which reduces the labor intensity of workers, improves work efficiency, has high safety, high degree of automation, and simple structure and convenient operation.

[0011] Furthermore, a connecting plate is arranged between the top plate and the bottom plate, the first power mechanism is connected to the threaded positioning mechanism through the connecting plate, the guide column passes through the connecting plate, a corresponding guide sleeve is arranged on the connecting plate, and the first power mechanism can drive the connecting plate and the threaded positioning mechanism to rise and fall synchronously in the vertical direction. The present invention arranges a connecting plate between the first power mechanism and the threaded positioning mechanism, so that the threaded positioning mechanism is smoother during the lifting process, and the shock absorber piston rod is smoother during the lifting process, thereby avoiding the shock absorber piston rod from tilting during the lifting process, thereby causing damage to the shock absorber piston rod.

[0012] Furthermore, the movable end of the first power mechanism is connected with a flange, and the first power mechanism is connected to the connecting plate through the flange. The first power mechanism is flange-connected to the connecting plate, so that the first power mechanism and the connecting plate are more firmly connected, ensuring stability.

[0013] Furthermore, the first power mechanism is a cylinder. Compared with hydraulic equipment, the principle and structure of the cylinder are simple, easy to install and maintain, and have low requirements for users, and have large output force, strong adaptability, and convenient adjustment.

[0014] Furthermore, the guide column is connected to the bottom plate with bolts, and the distance between the top plate and the bottom plate can be adjusted by the bolts, thereby meeting the requirements of shock absorbers of different length specifications, thereby improving the versatility of the mechanism.

[0015] Furthermore, the fixing mechanism includes a fixing frame, a positioning seat is provided on the fixing frame, a slot matching the outer cylinder of the shock absorber is provided on the positioning seat, the positioning seat is connected to the fixing frame through a second power mechanism, and the second power mechanism can drive the outer cylinder of the shock absorber to rise and fall in the vertical direction;

[0016] A pressing plate is arranged on the fixing frame above the positioning seat, and a first limiting groove is arranged on the pressing plate;

[0017] The diameter of the first limiting groove is smaller than the diameter of the shock absorber outer tube and larger than the diameter of the shock absorber piston rod.

[0018] The shock absorber outer cylinder is installed in the slot, and the second power mechanism drives the shock absorber outer cylinder to rise, so that the shock absorber outer cylinder is clamped between the pressure plate and the positioning seat, and the shock absorber outer cylinder is fixed. Fixing the shock absorber outer cylinder by lifting and lowering has a simple structure and convenient operation. On the other hand, it can also meet the needs of shock absorbers of different lengths and specifications, improving the versatility of the mechanism.

[0019] Furthermore, the second power mechanism is a cylinder. Compared with hydraulic equipment, the principle and structure of the cylinder are simple, easy to install and maintain, and have low requirements for users, and have large output force, strong adaptability, and convenient adjustment.

[0020] Furthermore, the limiting mechanism includes a third power mechanism arranged on the bottom plate and a limiting plate connected to the third power mechanism, and a second limiting groove matching the positioning pad is provided on the limiting plate, and the third power mechanism can drive the limiting plate to reciprocate in the horizontal direction. When it is necessary to fix and limit the positioning pad on the shock absorber piston rod, the third power mechanism drives the limiting plate to extend, and the second limiting groove on the limiting plate limits and fixes the positioning pad, and the positioning pad cannot pass through the second limiting groove. The shock absorber piston rod can pass through the limiting groove, so that the positioning pad and the shock absorber piston rod are relatively displaced. During the rising process of the shock absorber piston rod, the positioning pad is clamped on the shock absorber piston rod; after assembly, the third power mechanism drives the limiting plate to retract; the structure is simple and easy to operate.

[0021] Furthermore, two pressure blocks are arranged on the bottom plate at a certain distance, and a slide groove is arranged on the pressure block, and the limit plate is arranged in the slide groove, and the limit plate can move in the slide groove through the third power mechanism. If the pressure block is not arranged, the force of the positioning pad is mainly applied to the limit plate during the rising process of the shock absorber piston rod, and long-term use may cause the limit plate to deform; the present invention arranges a pressure block above the limit plate, and the pressure block is fixedly connected to the bottom plate, so that the force of the positioning pad is transmitted to the pressure block, thereby effectively avoiding the limit plate from being deformed due to force, and more effectively protecting the limit plate.

[0022] Furthermore, the third power mechanism is a cylinder. Compared with hydraulic equipment, the principle and structure of the cylinder are simple, easy to install and maintain, and have low requirements for users, and have large output force, strong adaptability, and convenient adjustment.

[0023] The beneficial effects of the present invention are:

[0024] 1. The assembly mechanism of the present invention only requires one person to install the shock absorber on the fixing mechanism, and the subsequent work is fully automated without manual operation, which reduces the labor intensity of workers, improves work efficiency, has high safety, high degree of automation, simple structure and convenient operation.

[0025] 2. The present invention provides a connecting plate between the first power mechanism and the threaded positioning mechanism, so that the shock absorber piston rod can be lifted and lowered more smoothly, thereby preventing the shock absorber piston rod from tilting during the lifting and lowering process, thereby preventing the shock absorber piston rod from being damaged.

[0026] 3. The present invention arranges a pressure block above the limit plate, which is then fixedly connected to the bottom plate, to transmit the force of the positioning pad to the pressure block, thereby effectively avoiding the limit plate from being deformed by force and more effectively protecting the limit plate.

[0027] 4. The first power mechanism, the second power mechanism and the third power mechanism of the present invention are all cylinders. Compared with hydraulic equipment, the principle and structure of the cylinder are simple, easy to install and maintain, and have low requirements for users. They also have large output force, strong adaptability, and are easy to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a perspective view of the present invention.

[0029] Figure 2 It is the front view of the present invention.

[0030] Figure 3 It is a three-dimensional diagram of the lifting mechanism.

[0031] Figure 4 It is the front view of the lifting mechanism.

[0032] Figure 5 yes Figure 4 Left view of .

[0033] Figure 6 It is a structural schematic diagram of a thread positioning mechanism.

[0034] The markings in the figure are:

[0035] 1. Frame;

[0036] 2. Fixing mechanism; 21. Fixing frame; 211. Positioning seat; 212. Second power mechanism; 213. Pressing plate; 2101. Card slot; 2103. First limiting slot;

[0037] 3. Lifting mechanism; 31. Top plate; 32. Bottom plate; 33. Guide column; 34. Connecting plate; 311. First power mechanism; 331. Bolt; 341. Flange; 342. Guide sleeve; 321. Press block; 3201. Slide;

[0038] 4. Limiting mechanism; 41. Third power mechanism; 42. Limiting plate; 431. Second limiting groove;

[0039] 5. Threaded positioning mechanism; 51. Handle; 52. Threaded hole;

[0040] 6. Shock absorber outer cylinder;

[0041] 7. Shock absorber piston rod;

[0042] 8. Positioning pad. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with the accompanying drawings.

[0044] Embodiment 1:

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the assembly mechanism for the upper end positioning pad of the shock absorber piston rod of the present invention includes a threaded positioning mechanism 5 connected to the shock absorber piston rod 7, and also includes:

[0046] Rack 1;

[0047] A fixing mechanism 2 is arranged below the frame 1 and is used to fix the shock absorber outer cylinder 6;

[0048] A lifting mechanism 3 is arranged on the frame 1 above the fixing mechanism 2 and is used to drive the shock absorber piston rod 7 to rise and fall in the vertical direction;

[0049] The limiting mechanism 4 is arranged on the lifting mechanism 3 and is used to fix the positioning pad 8;

[0050] The lifting mechanism 3 includes a top plate 31 and a bottom plate 32 arranged below the top plate 31. The top plate 31 and the bottom plate 32 are connected by a guide column 33. The top plate 31 is connected to the frame 1. A first power mechanism 311 is arranged on the top plate 31. The first power mechanism 311 can drive the threaded positioning mechanism 5 to rise and fall in the vertical direction. The guide column 33 is bolted to the bottom plate 32, and the distance between the top plate 31 and the bottom plate 32 can be adjusted by the bolt 331. The assembly mechanism of the present invention only requires one person to install the shock absorber on the fixing mechanism, and the subsequent work is fully automated without manual operation, which reduces the labor intensity of workers, improves work efficiency, has high safety, high degree of automation, and simple structure and convenient operation.

[0051] like Figure 1 and Figure 2As shown, the fixing mechanism 2 includes a fixing frame 21, a positioning seat 211 is provided on the fixing frame 21, a slot 2101 matching the shock absorber outer cylinder 6 is provided on the positioning seat 211, the positioning seat 211 is connected to the fixing frame 21 through a second power mechanism 212, and the second power mechanism 212 can drive the shock absorber outer cylinder 6 to rise and fall in the vertical direction; a pressure plate 213 is provided on the fixing frame 21 above the positioning seat 211, and a first limiting groove 2103 is provided on the pressure plate 213; the diameter of the first limiting groove 2103 is smaller than the diameter of the shock absorber outer cylinder 6, and larger than the diameter of the shock absorber piston rod 7.

[0052] The shock absorber outer cylinder is installed in the slot, and the second power mechanism drives the shock absorber outer cylinder to rise, so that the shock absorber outer cylinder is clamped between the pressure plate and the positioning seat, and the shock absorber outer cylinder is fixed. Fixing the shock absorber outer cylinder by lifting and lowering has a simple structure and convenient operation. On the other hand, it can also meet the needs of shock absorbers of different lengths and specifications, improving the versatility of the mechanism.

[0053] like Figure 3 and Figure 5 As shown, the limiting mechanism 4 includes a third power mechanism 41 arranged on the bottom plate 32 and a limiting plate 42 connected to the third power mechanism 41. The limiting plate 42 is provided with a second limiting groove 421 matching the positioning pad 8. The third power mechanism 41 can drive the limiting plate 42 to reciprocate in the horizontal direction. When it is necessary to fix and limit the positioning pad on the shock absorber piston rod, the third power mechanism drives the limiting plate to extend, and the second limiting groove on the limiting plate limits and fixes the positioning pad. The positioning pad cannot pass through the second limiting groove, and the shock absorber piston rod can pass through the limiting groove, so that the positioning pad and the shock absorber piston rod can be relatively displaced. In the process of the shock absorber piston rod rising, the positioning pad is clamped on the shock absorber piston rod; after assembly, the third power mechanism drives the limiting plate to retract; the structure is simple and easy to operate.

[0054] The first power mechanism 311, the second power mechanism 212 and the third power mechanism 41 are all cylinders. Compared with hydraulic equipment, the principle and structure of the cylinder are simple, easy to install and maintain, and have low requirements for users. They also have large output force, strong adaptability, and are easy to adjust.

[0055] Working principle: the operator first installs the shock absorber outer cylinder into the slot, and the second power mechanism drives the shock absorber outer cylinder to rise, so that the shock absorber outer cylinder is clamped between the positioning seat and the pressure plate to complete the fixation of the shock absorber outer cylinder; the positioning pad is installed on the shock absorber piston rod, and then the threaded positioning mechanism is connected to the shock absorber piston rod; the limit plate is extended through the third power mechanism, and the limit plate limits and fixes the positioning pad; finally, the shock absorber piston rod is driven to rise by the first power mechanism, and the position of the positioning pad remains unchanged during the rising process of the shock absorber piston rod, so the positioning pad and the shock absorber piston rod are relatively displaced, and as the shock absorber piston rod rises, the positioning pad is gradually clamped on the shock absorber piston rod to complete the automatic assembly of the positioning pad. The assembly mechanism of the present invention only requires one person to install the shock absorber on the fixing mechanism, and the subsequent work is fully automated, without manual operation, reducing the labor intensity of workers, improving work efficiency, high safety, high degree of automation, simple structure, and easy operation.

[0056] Embodiment 2:

[0057] like Figure 3 , Figure 4 and Figure 5 As shown, on the basis of the first embodiment, a connecting plate 34 is further arranged between the top plate 31 and the bottom plate 32, the first power mechanism 311 is connected to the threaded positioning mechanism 5 through the connecting plate 34, the guide column 33 passes through the connecting plate 34, a corresponding guide sleeve 342 is arranged on the connecting plate 34, and the first power mechanism 311 can drive the connecting plate 34 and the threaded positioning mechanism 5 to rise and fall synchronously in the vertical direction. The movable end of the first power mechanism 311 is connected to a flange 341, and the first power mechanism 311 is connected to the connecting plate 34 through the flange 341.

[0058] Working principle: The first power mechanism drives the connection plate to rise and fall, thereby driving the threaded positioning mechanism and the shock absorber piston rod to rise and fall synchronously with the connection plate. The present invention arranges a connection plate between the first power mechanism and the threaded positioning mechanism, so that the threaded positioning mechanism is smoother during the lifting process, and the shock absorber piston rod is also smoother during the lifting process, thereby preventing the shock absorber piston rod from tilting during the lifting process, thereby causing damage to the shock absorber piston rod.

[0059] Embodiment three:

[0060] like Figure 2 As shown, based on the first embodiment, this embodiment has two pressing blocks 321 spaced a certain distance apart arranged on the bottom plate 32, a slide groove 3201 is provided on the pressing block 321, a limiting plate 42 is arranged in the slide groove 3201, and the limiting plate 42 can move in the slide groove 3201 through a third power mechanism 41.

[0061] Working principle: If no pressure block is provided, during the rising process of the shock absorber piston rod, the force of the positioning pad is mainly applied to the limit plate, which may cause deformation of the limit plate if used for a long time. The present invention provides a pressure block above the limit plate, which is fixedly connected to the bottom plate, so that the force of the positioning pad is transmitted to the pressure block, thereby effectively avoiding the limit plate from being deformed by the force, and more effectively protecting the limit plate.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An assembly mechanism for a positioning pad at the upper end of a shock absorber piston rod, comprising a threaded positioning mechanism (5) connected to the shock absorber piston rod (7), and further comprising: Rack (1); A fixing mechanism (2) is arranged below the frame (1) and is used to fix the shock absorber outer cylinder (6); the fixing mechanism (2) comprises a fixing frame (21), a positioning seat (211) is provided on the fixing frame (21), a slot (2101) matching the shock absorber outer cylinder (6) is provided on the positioning seat (211), the positioning seat (211) is connected to the fixing frame (21) via a second power mechanism (212), and the second power mechanism (212) can drive the shock absorber outer cylinder (6) to rise and fall in a vertical direction; A pressing plate (213) is provided on the fixing frame (21) above the positioning seat (211), and a first limiting groove (2103) is provided on the pressing plate (213); The diameter of the first limiting groove (2103) is smaller than the diameter of the shock absorber outer cylinder (6) and larger than the diameter of the shock absorber piston rod (7); A lifting mechanism (3) is arranged on the frame (1) above the fixing mechanism (2) and is used to drive the shock absorber piston rod (7) to move up and down in a vertical direction; A limiting mechanism (4) is arranged on the lifting mechanism (3) and is used to fix the positioning pad (8); the limiting mechanism (4) comprises a third power mechanism (41) arranged on the bottom plate (32) and a limiting plate (42) connected to the third power mechanism (41); the limiting plate (42) is provided with a second limiting groove (421) matching the positioning pad (8); the third power mechanism (41) can drive the limiting plate (42) to reciprocate in the horizontal direction; two pressing blocks (321) are arranged on the bottom plate (32) at a certain distance; the pressing blocks (321) are provided with a sliding groove (3201); the limiting plate (42) is arranged in the sliding groove (3201); the limiting plate (42) can move in the sliding groove (3201) through the third power mechanism (41); The lifting mechanism (3) comprises a top plate (31) and a bottom plate (32) arranged below the top plate (31); the top plate (31) and the bottom plate (32) are connected via a guide column (33); the top plate (31) is connected to the frame (1); a first power mechanism (311) is arranged on the top plate (31); and the first power mechanism (311) can drive the threaded positioning mechanism (5) to rise and fall in a vertical direction.

2. The assembly mechanism for the upper end positioning pad of the shock absorber piston rod according to claim 1, characterized in that: A connecting plate (34) is arranged between the top plate (31) and the bottom plate (32); the first power mechanism (311) is connected to the threaded positioning mechanism (5) via the connecting plate (34); the guide column (33) passes through the connecting plate (34); a corresponding guide sleeve (342) is arranged on the connecting plate (34); and the first power mechanism (311) can drive the connecting plate (34) and the threaded positioning mechanism (5) to rise and fall synchronously in the vertical direction.

3. The assembly mechanism for the upper end positioning pad of the shock absorber piston rod according to claim 2, characterized in that: The movable end of the first power mechanism (311) is connected to a flange (341), and the first power mechanism (311) is connected to the connecting plate (34) via the flange (341).

4. The assembly mechanism for the upper end positioning pad of the shock absorber piston rod according to claim 3, characterized in that: The first power mechanism (311) is a cylinder.

5. The assembly mechanism for the upper end positioning pad of the shock absorber piston rod according to claim 1, characterized in that: The guide column (33) is connected to the bottom plate (32) by bolts, and the distance between the top plate (31) and the bottom plate (32) can be adjusted by bolts (331).

6. The assembly mechanism for the upper end positioning pad of the shock absorber piston rod according to claim 1, characterized in that: The second power mechanism (212) is a cylinder.

7. The assembly mechanism for the upper end positioning pad of the shock absorber piston rod according to claim 1, characterized in that: The third power mechanism (41) is a cylinder.

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