Chain wheel position gauge for vehicle

By designing a sprocket position gauge for vehicles with rotating and positioning components, the problems of time-consuming and labor-intensive sprocket installation and disassembly and difficult positioning in the existing technology have been solved, achieving efficient and stable sprocket inspection.

CN224544488UActive Publication Date: 2026-07-24WUXI LIAN NAN PRECISION MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI LIAN NAN PRECISION MASCH TECH CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing sprocket position gauges are time-consuming and labor-intensive to install and remove, and are difficult to position sprockets of different models, affecting inspection efficiency.

Method used

A vehicle sprocket position measurement fixture was designed, comprising a rotating component and a positioning component. The rotating component drives the test bench to rotate via a motor-driven worm gear, worm wheel, and cylindrical block. The positioning component achieves rapid positioning of sprockets of different sizes via a push rod and a restoring spring.

Benefits of technology

It improves the efficiency of sprocket inspection, enables quick installation and removal of sprockets, and adapts to the positioning of different sprocket models, thus enhancing the stability and efficiency of inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a testing fixture technical field especially is involved in a kind of chain wheel position degree testing fixture for vehicle, comprising: bottom plate, the bottom four corners of the bottom plate are all fixedly connected with support foot, the top center of the bottom plate is provided with rotating component, the top side of the bottom plate is installed with linear module one, the output end of linear module one is installed with linear module two, test instrument is provided below the output end of linear module two, the top of rotating component is fixedly connected with test bench;The chain wheel position degree testing fixture for vehicle of the utility model, by setting positioning assembly, to one side push rod, sliding plate compression recovery spring, after reserving sufficient position in the side of limit block, the middle part of test sprocket can be set in the outside of center column, release push rod when recovery spring restores, under the action of recovery force makes limit block enter between the tooth block of test sprocket, different sizes of test sprocket can be positioned.
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Description

Technical Field

[0001] This utility model relates to a positioning gauge for automotive sprockets, and more particularly to a positioning gauge for automotive sprockets, belonging to the field of gauge technology. Background Technology

[0002] A sprocket is a mechanical component with teeth on its rim that continuously meshes to transmit motion and power; it is an important automotive part. Sprockets with special positional requirements in their production and processing have high positional requirements for their internal tooth grooves, internal spline tooth thickness, and external tooth grooves. These sprockets require positional accuracy testing using measuring tools after production.

[0003] Existing sprocket position measurement fixtures require tightening the sprocket between the fixed and movable clamps during installation, which is time-consuming and labor-intensive. This affects the testing efficiency and makes it difficult to position different sprocket models. Therefore, we propose a high-efficiency automotive sprocket internal tooth groove position measurement fixture. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vehicle sprocket position gauge that can achieve high-efficiency detection.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A vehicle sprocket position gauge includes a base plate, with support feet fixedly connected to the four bottom corners of the base plate. A rotating assembly is disposed at the top center of the base plate. A linear module one is mounted on one side of the top of the base plate. A linear module two is mounted on the output end of the linear module one. A testing instrument is disposed below the output end of the linear module two. A testing platform is fixedly connected above the rotating assembly. A test sprocket is disposed above the testing platform. A positioning assembly for fixing the test sprocket is disposed on one side of the test sprocket.

[0007] Preferably, a central column is fixedly connected to the top center of the test platform.

[0008] In the above-mentioned further scheme: the center post is inserted in the middle of the test sprocket for positioning.

[0009] Preferably, the rotating assembly includes a mounting plate, which is fixedly connected to the top center of the base plate. A cylindrical block is rotatably mounted inside the center of the mounting plate, and a worm gear is fixedly sleeved on the outside of the cylindrical block. A motor is fixedly mounted on one side of the mounting plate, and a rotating rod is fixedly connected to the output end of the motor. A worm gear that meshes with the worm gear is fixedly connected to the middle of the rotating rod. The cylindrical block is fixedly connected to the test bench, and the rotating rod is rotatably connected to the mounting plate through a bearing.

[0010] In the above-mentioned further solution: the motor is turned on, and the motor drives the worm to rotate through the rotating rod. The worm drives the worm wheel to rotate through meshing. The worm wheel drives the cylindrical block to rotate. The cylindrical block drives the test platform to rotate, thereby causing the test sprocket to rotate. This allows all the teeth of the test sprocket to contact the test instrument, improving the detection efficiency of the test sprocket.

[0011] Preferably, the top of the mounting plate is rotatably equipped with multiple ball bearings, which makes the test platform more stable when rotating.

[0012] Preferably, the positioning component includes a hollow plate, which is fixedly connected to one side of the test bench. A sliding plate is slidably engaged inside the hollow plate. A push rod is fixedly connected to the top of the sliding plate. A limiting block for positioning the test sprocket is fixedly connected to one side of the sliding plate. A restoring spring is fixedly connected between the other side of the sliding plate and the hollow plate. The push rod is embedded in a groove on the upper surface of the hollow plate.

[0013] In the above-mentioned further solution: pushing the push rod to one side compresses the return spring of the sliding plate. After leaving enough space on one side of the limiting block, the middle part of the test sprocket can be fitted onto the outside of the center column. Releasing the push rod will cause the return spring to return to its original state. Under the action of the return force, the limiting block will enter between the teeth of the test sprocket, so that test sprockets of different sizes can be positioned.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a rotating component, turns on the motor and drives the worm gear, worm wheel, cylindrical block and test platform to rotate in sequence through the rotating rod, so that the test sprocket can rotate and the teeth of the test sprocket can contact the test instrument, thereby improving the detection efficiency of the test sprocket.

[0016] 2. This utility model, by setting a positioning component, pushes the push rod to one side, the sliding plate compresses the restoring spring, and after leaving sufficient space on one side of the limiting block, the middle part of the test sprocket can be sleeved on the outside of the central column. When the push rod is released, the restoring spring returns to its original state, and under the action of the restoring force, the limiting block enters between the teeth of the test sprocket, so that test sprockets of different sizes can be positioned. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a front view structural diagram of an embodiment of the present utility model;

[0019] Figure 3This is a partial structural diagram of the positioning component in an embodiment of the present utility model;

[0020] Figure 4 This is a partial structural diagram of the rotating component in an embodiment of the present invention.

[0021] In the diagram: 1. Base plate; 11. Support foot; 2. Linear module one; 3. Linear module two; 4. Testing instrument; 5. Rotating assembly; 51. Mounting plate; 52. Cylindrical block; 53. Worm gear; 54. Motor; 55. Rotating rod; 56. Worm; 57. Ball bearing; 6. Test platform; 7. Center column; 8. Test sprocket; 9. Positioning assembly; 91. Hollow plate; 92. Sliding plate; 93. Push rod; 94. Limit block; 95. Restoring spring. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 4 As shown, this utility model provides a technical solution: a vehicle sprocket position gauge, including a base plate 1, with support feet 11 fixedly connected to the four corners of the bottom of the base plate 1, a rotating assembly 5 set at the top center of the base plate 1, a linear module 1 2 installed on one side of the top of the base plate 1, a linear module 2 3 installed at the output end of the linear module 1 2, a testing instrument 4 set below the output end of the linear module 2 3, a testing platform 6 fixedly connected above the rotating assembly 5, a testing sprocket 8 set above the testing platform 6, and a positioning assembly 9 for fixing the testing sprocket 8 on one side.

[0024] Specifically, a central column 7 is fixedly connected to the top center of the test platform 6.

[0025] By adopting the above technical solution, the center post 7 is inserted into the middle of the test sprocket 8 for positioning.

[0026] Specifically, the rotating assembly 5 includes a mounting plate 51, which is fixedly connected to the top center of the base plate 1. A cylindrical block 52 is rotatably mounted inside the center of the mounting plate 51. A worm gear 53 is fixedly sleeved on the outside of the cylindrical block 52. A motor 54 is fixedly mounted on one side of the mounting plate 51. A rotating rod 55 is fixedly connected to the output end of the motor 54. A worm 56 that meshes with the worm gear 53 is fixedly connected to the center of the rotating rod 55. The cylindrical block 52 is fixedly connected to the test bench 6. The rotating rod 55 is rotatably connected to the mounting plate 51 through a bearing.

[0027] By adopting the above technical solution, the motor 54 is turned on, and the motor 54 drives the worm 56, worm wheel 53, cylindrical block 52 and test platform 6 to rotate in sequence through the rotating rod 55, so that the test sprocket 8 can rotate, and the teeth of the test sprocket 8 can contact the test instrument 4, thereby improving the detection efficiency of the test sprocket 8.

[0028] Specifically, multiple ball bearings 57 are rotatably mounted on the top of the mounting plate 51, which makes the test platform 6 more stable when rotating.

[0029] like Figures 1 to 4 The positioning component 9 includes a hollow plate 91, which is fixedly connected to one side of the test bench 6. A sliding plate 92 is slidably engaged inside the hollow plate 91. A push rod 93 is fixedly connected to the top of the sliding plate 92. A limiting block 94 for positioning the test sprocket 8 is fixedly connected to one side of the sliding plate 92. A restoring spring 95 is fixedly connected between the other side of the sliding plate 92 and the hollow plate 91. The push rod 93 is embedded in a groove on the upper surface of the hollow plate 91.

[0030] By adopting the above technical solution, the push rod 93 is pushed to one side, the sliding plate 92 compresses the restoring spring 95, and after the limiting block 94 leaves sufficient space on one side, the middle part of the test sprocket 8 can be sleeved on the outside of the central column 7. When the push rod 93 is released, the restoring spring 95 returns to its original state. Under the action of the restoring force, the limiting block 94 enters between the teeth of the test sprocket 8, so that test sprockets 8 of different sizes can be positioned.

[0031] Working principle: In use, the test sprocket 8 is first positioned by pushing the push rod 93 to one side, compressing the sliding plate 92 and the return spring 95. After leaving sufficient space on one side of the limiting block 94, the middle part of the test sprocket 8 can be fitted onto the outside of the center column 7. When the push rod 93 is released, the return spring 95 returns to its original position. Under the action of the return force, the limiting block 94 enters between the teeth of the test sprocket 8, thus enabling the positioning of test sprockets 8 of different sizes. The testing instrument 4 is adjusted by the linear module 1 2 and the linear module 2 3. The position allows the testing instrument 4 to contact the toothed surface of the testing sprocket 8, enabling the testing of the toothed blocks of the testing sprocket 8. To improve testing efficiency, multiple toothed blocks are tested. The motor 54 is turned on, and the motor 54 drives the worm gear 56, worm wheel 53, cylindrical block 52, and testing platform 6 to rotate sequentially through the rotating rod 55. This allows the testing sprocket 8 to rotate, ensuring that all the toothed blocks of the testing sprocket 8 can contact the testing instrument 4, thus improving the testing efficiency of the testing sprocket 8. At the same time, the ball bearing 57 makes the testing platform 6 more stable during rotation.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model's technical solution shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A vehicle sprocket position gauge, comprising a base plate (1), characterized in that: A rotating assembly (5) is provided at the top center of the base plate (1). A linear module one (2) is installed on one side of the top of the base plate (1). A linear module two (3) is installed at the output end of the linear module one (2). A testing instrument (4) is provided below the output end of the linear module two (3). A testing platform (6) is fixedly connected above the rotating assembly (5). A testing sprocket (8) is provided above the testing platform (6). A positioning assembly (9) for fixing the testing sprocket (8) is provided on one side of the testing sprocket (8).

2. The vehicle sprocket position gauge according to claim 1, characterized in that: A central column (7) is fixedly connected to the top center of the test bench (6). The central column (7) is inserted into the middle of the test sprocket (8) for positioning.

3. The vehicle sprocket position gauge according to claim 1, characterized in that: The rotating assembly (5) includes a mounting plate (51), which is fixedly connected to the top center of the base plate (1). A cylindrical block (52) is rotatably mounted in the middle of the mounting plate (51), and a worm gear (53) is fixedly sleeved on the outside of the cylindrical block (52).

4. The automotive sprocket position gauge according to claim 3, characterized in that: A motor (54) is fixedly installed on one side of the mounting plate (51). The output end of the motor (54) is connected to a rotating rod (55). A worm (56) that meshes with a worm wheel (53) is fixedly connected to the middle of the rotating rod (55).

5. The automotive sprocket position gauge according to claim 4, characterized in that: The cylindrical block (52) is fixedly connected to the test platform (6), and the rotating rod (55) is rotatably connected to the mounting plate (51) through a bearing.

6. The automotive sprocket position gauge according to claim 5, characterized in that: Multiple ball bearings (57) are rotatably mounted on the top of the mounting plate (51).

7. The automotive sprocket position gauge according to claim 1, characterized in that: The positioning component (9) includes a hollow plate (91), which is fixedly connected to one side of the test bench (6). A sliding plate (92) is slidably engaged inside the hollow plate (91). A push rod (93) is fixedly connected to the top of the sliding plate (92). A limiting block (94) for positioning the test sprocket (8) is fixedly connected to one side of the sliding plate (92). A restoring spring (95) is fixedly connected between the other side of the sliding plate (92) and the hollow plate (91).

8. The automotive sprocket position gauge according to claim 7, characterized in that: The push rod (93) is embedded in the groove on the upper surface of the hollow plate (91).

9. The automotive sprocket position gauge according to claim 1, characterized in that: Support feet (11) are fixedly connected to the four corners of the bottom of the base plate (1).