Centering method for outer cylinder of shock absorber

Abstract

The invention relates to the technical field of shock absorber manufacturing, in particular to a shock absorber outer cylinder centering method, which is characterized in that a holding claw structure sequentially comprises the following steps: step 1, determining the raising or lowering height of a holding claw cylinder by taking the center height of a standard shock absorber outer cylinder with the diameter of 50mm as a reference; step 2, opening a holding claw cylinder, putting the outer cylinder of the shock absorber into the holding claw cylinder, closing the holding claw cylinder, and clamping the outer cylinder of the shock absorber by a holding claw; and 3, according to the lifting or lowering height of the holding claw air cylinder, the moving direction and distance of piston rods of the upper air cylinder and the lower air cylinder are adjusted, and therefore the axis of the outer cylinder of the shock absorber is kept consistent with the axis of a standard outer cylinder of the shock absorber with the diameter being 50 mm. Compared with the prior art, the height of the axis of the shock absorber outer barrel is adjusted through the upper air cylinder and the lower air cylinder, the axis of the shock absorber outer barrel is determined in a limited space in a low-cost mode, and therefore the production requirements of shock absorber products with different thicknesses are met.

Description

Technical Field

[0001] This invention relates to the field of vibration damper manufacturing technology, specifically a method for aligning the outer cylinder of a vibration damper. Background Technology

[0002] Claw grippers are a common mechanism used in the outer cylinder of shock absorbers, playing a vital role in the relocation and positioning of individual shock absorber products. However, when the shock absorber product has significant variations in size, it can become unbalanced during pressing and other processes, leading to uneven pressing or even damage to the outer cylinder.

[0003] Since the outer cylinder of a vibration damper is cylindrical, its axis is fixed, but the axis position varies depending on the diameter of the outer cylinder. In applications where there are many types of outer cylinders with different diameters and where machining requires specific alignment, conventional structures cannot meet the centering requirements.

[0004] In existing, established mechanisms, replacing the gripper structure often requires a large amount of space and high modification costs.

[0005] Therefore, it is necessary to design a centering method for the outer cylinder of the shock absorber, so as to realize the rapid change of the outer cylinder claw structure and the fixed axis under the limited space and cost, and meet the production needs of shock absorber products of different thicknesses. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for centering the outer cylinder of a shock absorber. Under the conditions of limited space and cost, this method enables the rapid change of the outer cylinder's gripper structure to fix the axis, thus meeting the production needs of shock absorber products of different sizes.

[0007] To achieve the above objectives, the present invention provides a method for aligning the outer cylinder of a shock absorber. The gripper structure sequentially performs the following steps: Step 1, using the center height of a standard shock absorber outer cylinder with a diameter of 50mm as a reference, confirm the height at which the gripper cylinder is raised or lowered; Step 2, the gripper cylinder opens, the shock absorber outer cylinder is inserted, the gripper cylinder closes, and the gripper clamps the shock absorber outer cylinder; Step 3, according to the height at which the gripper cylinder is raised or lowered, adjust the direction and distance of movement of the piston rods of the upper and lower cylinders, so that the axis of the shock absorber outer cylinder is aligned with the axis of the standard shock absorber outer cylinder with a diameter of 50mm.

[0008] The gripper structure includes a guide post and guide sleeve, a base plate, a movable plate, upper and lower cylinders, a gripper cylinder, and a gripper. The base plate is fixed on the workbench, and a guide post and guide sleeve are provided between the base plate and the movable plate. The upper and lower cylinders are installed on the movable plate. After the piston rods of the upper and lower cylinders pass through the movable plate, they are connected to the base plate. A gripper cylinder is installed in the center of the movable plate. The piston rod of the gripper cylinder is connected to the gripper, and the gripper clamps the outer cylinder of the shock absorber.

[0009] The specific height at which the gripper cylinder is raised or lowered is as follows: if the diameter of the outer cylinder of the centered damper is less than 50mm, the gripper cylinder is raised by 3mm for every 10mm reduction; if the diameter of the outer cylinder of the centered damper is greater than 50mm, the gripper cylinder is lowered by 3mm for every 10mm increase.

[0010] The base plate is equipped with a limiting block.

[0011] The limiting block is a replaceable structure.

[0012] The dimensions of the limiting block are matched with the diameter of the outer cylinder of the shock absorber, the dimensions of the gripper, and the models of the upper and lower cylinders.

[0013] Compared with the prior art, this invention adjusts the shaft height of the outer cylinder of the shock absorber by upper and lower cylinders, and completes the shaft centering of the outer cylinder of the shock absorber in a low-cost manner within a limited space, thereby meeting the production needs of shock absorber products of different sizes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the gripper structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the alignment method for the outer cylinder of the vibration damper of the present invention. Detailed Implementation

[0016] The present invention will now be further described with reference to the accompanying drawings.

[0017] See Figure 2 This invention is a method for centering the outer cylinder of a shock absorber. The gripper structure completes the following steps in sequence: Step 1, using the center height of the standard shock absorber outer cylinder with a diameter of 50mm as a reference, confirm the height at which the gripper cylinder is raised or lowered.

[0018] When using the same gripper to hold different shock absorber outer cylinders, the height of the gripper cylinder needs to be adjusted to ensure the final axis alignment of the outer cylinders. To grip a thinner shock absorber outer cylinder, the gripper cylinder needs to be raised; conversely, to grip a thicker shock absorber outer cylinder, the gripper cylinder needs to be lowered. The specific height adjustments for the gripper cylinder are as follows: if the diameter of the aligning shock absorber outer cylinder is less than 50mm, raise the gripper cylinder by 3mm for every 10mm reduction; if the diameter of the aligning shock absorber outer cylinder is greater than 50mm, lower the gripper cylinder by 3mm for every 10mm increase.

[0019] Step 2: Open the gripper cylinder, insert the outer cylinder of the shock absorber, close the gripper cylinder, and the gripper clamps the outer cylinder of the shock absorber.

[0020] Step 3: Adjust the direction and distance of the piston rods of the upper and lower cylinders according to the height of the lifting or lowering of the gripper cylinder, so that the axis of the outer cylinder of the shock absorber is consistent with the axis of the outer cylinder of the standard shock absorber with a diameter of 50mm.

[0021] See Figure 1 The gripper structure includes a guide post and guide sleeve 2, a base plate 3, a movable plate 4, upper and lower cylinders 5, a gripper cylinder 6, and a gripper 7. The base plate 3 is fixed on the workbench. The guide post and guide sleeve 2 are provided between the base plate 3 and the movable plate 4. The upper and lower cylinders 5 are installed on the movable plate 4. The piston rod of the upper and lower cylinders 5 passes through the movable plate 4 and is connected to the base plate 3. The gripper cylinder 6 is installed in the center of the movable plate 4. The piston rod of the gripper cylinder 6 is connected to the gripper 7. The gripper 7 clamps the outer cylinder 8 of the shock absorber.

[0022] The base plate 3 is equipped with a limiting block 1, which is used to determine the height at which the gripper cylinder is raised or lowered. The limiting block 1 is a replaceable structure. The dimensions of the limiting block 1 are matched with the diameter of the outer cylinder 8 of the shock absorber, the dimensions of the gripper 7, and the models of the upper and lower cylinders 5. The design can be simulated through drawings to solve the problems of inconsistent gripper structure axes and inconvenient replacement.

[0023] The gripper cylinder 6 is mounted on the movable plate 4, and its height is adjusted by the upper and lower cylinders 5. During operation, the upper and lower cylinders 5 drive the movable plate 4 to move towards the base plate 3, eventually engaging with the limit block 1, thus achieving alignment of the outer cylinder 8 of the shock absorber with the machining center. The guide pillars and guide sleeves 2 ensure the stability of the movable plate 4's movement.

[0024] This invention adjusts the axial height of the shock absorber outer cylinder using upper and lower cylinders, achieving a fixed axial center of the shock absorber outer cylinder within a limited space in a low-cost manner, thus meeting the production needs of shock absorber products of varying sizes. This invention has been successfully implemented by multiple automakers and can be applied to all types of shock absorber products.

Claims

1. A method for aligning the outer cylinder of a vibration damper, characterized in that: The gripper structure completes the following steps in sequence: Step 1, using the center height of the standard 50mm diameter shock absorber outer cylinder as a reference, determine the height at which the gripper cylinder is raised or lowered; Step 2, the gripper cylinder opens, the shock absorber outer cylinder is inserted, the gripper cylinder closes, and the gripper clamps the shock absorber outer cylinder; Step 3, according to the height at which the gripper cylinder is raised or lowered, adjust the direction and distance of movement of the piston rods of the upper and lower cylinders so that the axis of the shock absorber outer cylinder is consistent with the axis of the standard 50mm diameter shock absorber outer cylinder. The gripper structure includes a guide post and guide sleeve (2), a base plate (3), a movable plate (4), upper and lower cylinders (5), a gripper cylinder (6), and a gripper (7). The base plate (3) is fixed on the workbench. A guide post and guide sleeve (2) are provided between the base plate (3) and the movable plate (4). The upper and lower cylinders (5) are installed on the movable plate (4). The piston rod of the upper and lower cylinders (5) passes through the movable plate (4) and is connected to the base plate (3). A gripper cylinder (6) is installed in the center of the movable plate (4). The piston rod of the gripper cylinder (6) is connected to the gripper (7). The gripper (7) clamps the outer cylinder (8) of the shock absorber.

2. The method for aligning the outer cylinder of a vibration damper according to claim 1, characterized in that: The specific height at which the gripper cylinder is raised or lowered is as follows: if the diameter of the outer cylinder of the centered damper is less than 50mm, the gripper cylinder is raised by 3mm for every 10mm reduction; if the diameter of the outer cylinder of the centered damper is greater than 50mm, the gripper cylinder is lowered by 3mm for every 10mm increase.

3. The method for aligning the outer cylinder of a vibration damper according to claim 1, characterized in that: The base plate (3) is provided with a limiting block (1).

4. The alignment method for the outer cylinder of a vibration damper according to claim 3, characterized in that: The limiting block (1) is a replaceable structure.

5. The alignment method for the outer cylinder of a vibration damper according to claim 3, characterized in that: The dimensions of the limiting block (1) are matched with the diameter of the outer cylinder (8) of the shock absorber, the dimensions of the gripper (7), and the models of the upper and lower cylinders (5).

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