Tightening and dismounting tool for frequency self-adaptive damping adjusting bottom valve of shock absorber

Abstract

The utility model discloses a tightening and disassembling tool for a shock absorber frequency self-adaption damping adjusting bottom valve, and relates to the field of shock absorbers, the tightening and disassembling tool comprises a lower tool and an upper tool, the upper end face of the lower tool is provided with a lower groove used for positioning the head of a bolt of a bottom valve assembly, and the lower portion of the bottom valve assembly makes contact with the upper end face; the bottom valve assembly is stably placed; an upper groove is formed in the lower portion of the upper tool and used for penetrating through an upper opening of the bottom valve assembly and tightly holding the outer wall of the adjusting valve body, and therefore the adjusting valve body is wrapped. A connecting part is arranged on the upper portion of the upper tool and used for being matched with a torque measuring tool, and therefore the tightening torque and the disassembling torque are quantitatively determined. When the bottom valve assembly is tightened and disassembled, the bottom valve assembly is fixed in a mechanism and does not slide, meanwhile, the bottom valve assembly is stably placed on a parallel table top, it is guaranteed that the internal structure is in a uniform stress state, and the tightening torque and the disassembling torque are quantitatively determined through a torque measuring tool.

Description

Technical Field

[0001] This utility model relates to the field of shock absorbers, and specifically to a tightening and disassembling tool for the frequency adaptive damping adjustment bottom valve of a shock absorber. Background Technology

[0002] like Figure 1 As shown, when tightening the valve assembly (2'), one hand holds the head of the bolt (1') and the other hand tightens the regulating valve (3'). The same applies during disassembly; one hand holds the bolt and the other hand disassembles the frequency adaptive damping regulating valve. The existing technical solution has the following drawbacks:

[0003] When using a hand to hold a bolt, the large torque during tightening and loosening can cause the hand to slip and lose its grip. Furthermore, the instability of human hand gripping the bolt can lead to tilting, resulting in an unstable internal structure during tightening and compromising quality. Additionally, when tightening and loosening the frequency adaptive damping control valve, the foot valve must be higher than the valve itself, making it difficult to fully grip the valve and thus hindering proper tightening or loosening. Moreover, the tightening process specifies a certain torque; the instability of human hand makes it impossible to quantitatively determine the tightening torque, compromising product quality consistency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a tightening and disassembly fixture for the frequency adaptive damping regulating bottom valve of a shock absorber. During tightening and disassembly, the bottom valve assembly is fixed in a mechanism to prevent slippage. Simultaneously, the bottom valve assembly is placed stably on a parallel platform, ensuring that the internal structure is under uniform stress. The fixture effectively encloses the frequency adaptive damping regulating valve, allowing for tightening and disassembly with a relatively large torque. A torque measuring tool is used to quantitatively determine the magnitude of the tightening and disassembly torque.

[0005] The purpose of this utility model is achieved through the following technical solution: This tightening and disassembling fixture for the frequency adaptive damping regulating bottom valve of a shock absorber includes a lower fixture and an upper fixture. The upper end face of the lower fixture has a lower groove for positioning the bolt head of the bottom valve assembly and making the lower part of the bottom valve assembly contact the upper end face to achieve stable placement of the bottom valve assembly. The lower part of the upper fixture has an upper groove for inserting from the upper opening of the bottom valve assembly and clamping it to the outer wall of the regulating valve body to achieve wrapping of the regulating valve body. The upper part of the upper fixture is provided with a connecting part for adapting a torque measuring tool to quantitatively determine the torque for tightening and disassembling.

[0006] As a further technical solution, the lower two sides of the lower tooling are milled flat to form a fixing groove, which facilitates fixing the lower tooling to the vise.

[0007] As a further technical solution, the shape of the lower groove matches the bolt head.

[0008] As a further technical solution, the upper groove surface is provided with several protrusions for fitting into the opening at the top of the regulating valve body.

[0009] As a further technical solution, the connecting part adopts a hexagonal protrusion or hexagonal recess structure to adapt to different digital torque wrenches.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. A groove matching the shape of the bolt head is provided on the lower tooling to ensure that no relative slippage occurs during the tightening process;

[0012] 2. The lower part of the bottom valve assembly contacts the upper end face of the lower tooling to achieve stable placement and ensure stability during installation;

[0013] 3. The upper tooling can hold tightly onto the regulating valve body to form a wrap, and the upper groove is also provided with a boss to fit into the opening at the top of the regulating valve body, thereby providing a sufficiently large torque load.

[0014] 4. The connecting part of the upper tooling can be designed as a protrusion or a recess to adapt to various different equipment and ensure that the torque load for tightening and disassembly can be quantitatively set. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the existing technology.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the upper tooling in this utility model.

[0018] Figure 4 for Figure 3 A-direction view.

[0019] Figure 5 for Figure 3 View B.

[0020] Figure 6 This is a schematic diagram of the lower tooling in this utility model.

[0021] Figure 7 for Figure 6 The C-direction view.

[0022] Explanation of reference numerals in the attached drawings: Bolt 1', Valve assembly 2', Control valve 3';

[0023] 1. Lower tooling; 2. Lower groove; 3. Fixing groove; 4. Upper end face; 5. Bottom valve assembly; 6. Bolt head; 7. Upper tooling; 8. Upper groove; 9. Boss; 10. Connecting part; 11. Regulating valve body. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings:

[0025] Example: As attached Figures 2-7 As shown, this tightening and disassembling fixture for the frequency adaptive damping adjustment bottom valve of a shock absorber includes a lower fixture 1, a lower groove 2, a fixing groove 3, an upper end face 4, a bottom valve assembly 5, a bolt head 6, an upper fixture 7, an upper groove 8, a boss 9, a connecting part 10, and an adjustment valve body 11.

[0026] Reference Appendix Figure 2 , 6 7. A recessed groove 2 is formed on the upper end face 4 of the lower tooling 1. The shape of the recessed groove 2 matches the bolt head 6. The recessed groove 2 is used to position the bolt head 6 of the bottom valve assembly 5 and to make the lower part of the bottom valve assembly 5 contact the upper end face 4 of the lower tooling 1, so as to achieve stable placement of the bottom valve assembly 5. Preferably, as follows... Figure 6 As shown, the lower two sides of the lower tooling 1 are milled flat to form fixing grooves 3, which facilitates fixing the lower tooling 1 to the vise. During tightening and disassembly, the frequency adaptive damping regulating bottom valve assembly 5 can be placed stably on the parallel table, ensuring stability during installation.

[0027] like Figure 3 , 4 As shown in Figure 5, an upper groove 8 is formed at the lower part of the upper tooling 7. The upper groove 8 is inserted through the upper opening of the bottom valve assembly 5 and hugs the outer wall of the regulating valve body 11, thereby enveloping the regulating valve body 11. Preferably, six protrusions 9 are provided on the surface of the upper groove 8. The structure of the protrusions 9 can fit into the opening at the top of the regulating valve body 11. During tightening and disassembly, it can well wrap around the frequency adaptive damping regulating valve (regulating valve body 11), thereby using a larger torque for tightening and disassembly.

[0028] Furthermore, a connecting part 10 is provided on the upper part of the upper tooling 7. The connecting part 10 adopts a hexagonal protrusion structure (or a hexagonal recess structure). During tightening and disassembly, a torque measuring tool can be used to quantitatively determine the torque required for tightening and disassembly. At the same time, the connecting part 10 can be machined not only into a hexagonal protrusion structure but also into a hexagonal recess structure to facilitate adaptation to different torque measuring tools.

[0029] The working process of this utility model:

[0030] During tightening and disassembly, first, the lower tool 1 is clamped and positioned in a vise using the fixing groove 3. Then, the bolt head 6 of the bottom valve assembly 5 is aligned with the lower groove 2 for positioning, and the lower part of the bottom valve assembly 5 is brought into contact with the upper end face 4 of the lower tool 1 to ensure stable placement of the bottom valve assembly 5. Subsequently, the upper groove 8 of the upper tool 7 is inserted through the upper opening of the bottom valve assembly 5 and held tightly against the outer wall of the regulating valve body 11 to enclose the regulating valve body 11. At the same time, the six protrusions 9 on the surface of the upper groove 8 are embedded into the opening at the top of the regulating valve body 11. Finally, the torque measuring tool (digital torque wrench) is connected to the connecting part 10 of the upper tool 7 to quantitatively determine the torque required for tightening and disassembly.

[0031] Terminology Explanation:

[0032] Shock absorbers are components used to suppress the oscillations caused by the rebound of springs after absorbing shocks, as well as impacts from the road surface. They are widely used in automobiles to accelerate the attenuation of vibrations in the chassis and body, thereby improving the ride comfort of the vehicle.

[0033] Base valve: When the shock absorber piston is in the compression stroke, the oil flows through the small passage of the base valve, forming a compression damping force.

[0034] Frequency adaptive damping regulating valve: When the shock absorber piston moves up and down at a high frequency, the frequency adaptive damping regulating valve will open, causing the damping force to decrease.

[0035] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A tightening and disassembling fixture for a frequency adaptive damping regulating bottom valve of a shock absorber, characterized in that: The fixture includes a lower fixture (1) and an upper fixture (7). The upper end face (4) of the lower fixture (1) has a lower groove (2) for positioning the bolt head (6) of the bottom valve assembly (5) and making the lower part of the bottom valve assembly (5) contact the upper end face (4) to achieve stable placement of the bottom valve assembly (5). The lower part of the upper fixture (7) has an upper groove (8) for inserting from the upper opening of the bottom valve assembly (5) and holding it tightly on the outer wall of the regulating valve body (11) to achieve wrapping of the regulating valve body (11). The upper part of the upper fixture (7) is provided with a connecting part (10) for adapting to a torque measuring tool to quantitatively determine the torque for tightening and loosening.

2. The tightening and disassembly fixture for the frequency adaptive damping adjustment bottom valve of a shock absorber according to claim 1, characterized in that: The lower two sides of the lower tooling (1) are milled flat to form a fixing groove (3), which facilitates fixing the lower tooling (1) on the vise.

3. The tightening and disassembly fixture for the frequency adaptive damping adjustment bottom valve of a shock absorber according to claim 1, characterized in that: The shape of the lower groove (2) matches the bolt head (6).

4. The tightening and disassembly fixture for the frequency adaptive damping adjustment bottom valve of a shock absorber according to claim 1, characterized in that: The upper groove (8) is provided with several protrusions (9) for fitting into the opening at the top of the regulating valve body (11).

5. The tightening and disassembly fixture for the frequency adaptive damping adjustment bottom valve of a shock absorber according to claim 1, characterized in that: The connecting part (10) adopts a hexagonal protrusion or hexagonal recess structure to adapt to different digital torque wrenches.

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