Device for detecting position degree of shifting fork of first gear to third gear of automobile gearbox

Abstract

The utility model relates to the technical field of automobile detection. The utility model discloses an automobile gearbox 1-3 gear shifting fork position degree inspection device, which comprises a base, the top of the base is fixedly connected with a pressing assembly, the center of the base is fixedly connected with a supporting assembly, and the device positions a product body through the cooperation of the pressing assembly and the supporting assembly. And then a first detection pin, a second detection pin and a third detection pin in the reference seat, the base and the fixed seat are pushed respectively, and if the first detection pin, the second detection pin and the third detection pin can smoothly pass through corresponding detection parts on the product body, it is indicated that the overall position degree of the product meets the design standard. If any one of the detection pins cannot pass smoothly, the position degree of the product is determined to be unqualified, and the accuracy and reliability of the position degree detection of the product body are effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, specifically a device for testing the position of the shift fork in the 1st to 3rd gear of an automotive transmission. Background Technology

[0002] In the manufacturing process of automotive transmissions, the positional accuracy of the 1st to 3rd gear shift forks is crucial to the transmission's performance and reliability. Deviations in the shift fork position can lead to problems such as uneven shifting and gear grinding, affecting the vehicle's normal operation and lifespan.

[0003] Traditional methods for detecting shift fork position accuracy have several drawbacks. For example, direct measurement is difficult due to the difficulty in establishing a reference point, the measurement process is unstable and easily affected by the operator's skill level and the measurement environment, leading to inaccurate results. Furthermore, the single positioning method has significant errors and cannot meet the high-precision inspection requirements of modern automotive manufacturing. Therefore, a testing device that can accurately position, perform precise inspections, and is easy to operate is needed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a device for testing the position of the 1st to 3rd gear shift fork in an automotive transmission. This device solves the problems of difficulty in aligning the reference point during traditional shift fork measurements, instability in the measurement process, and susceptibility to the operator's skill level and the measurement environment, which leads to inaccurate test results.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a device for testing the position of 1st-3rd gear shift forks in an automotive transmission, comprising a base, a clamping assembly fixedly connected to the top of the base, a support assembly fixedly connected to the center of the base, a transverse push clamp fixedly connected to the top of the base, a reference base fixedly connected to the top of the base, a first detection pin slidably connected to the inner side of the reference base, a base fixedly connected to the top of the base, a second detection pin slidably connected to the inner side of the base, a fixed seat fixedly connected to the top of the base, and a third detection pin slidably connected to the inner side of the fixed seat. The device further comprises: the clamping assembly includes a fixed platform, a longitudinal push clamp fixedly connected to the top of the fixed platform, a connecting block fixedly connected to the bottom of the longitudinal push clamp, a compression spring fixedly connected to the bottom of the connecting block, a limit sleeve fixedly connected to the bottom end of the compression spring, and a reference pin fixedly connected to the bottom of the limit sleeve. If the first, second, and third detection pins can all pass smoothly through the corresponding detection parts on the product body, it indicates that the overall position of the product meets the design standards.

[0008] Preferably, the fixing seat is located on the side of the base away from the reference seat, and the lateral pusher is located on the side of the base close to the reference seat. The product body is pushed laterally to move towards the reference seat until the product is tightly attached to the reference seat, thus completing the lateral positioning of the product.

[0009] Preferably, the bottom of the fixed platform is fixedly connected to the top of the base, and a guide sleeve is fixedly connected to the inner side of the fixed platform. The inner side of the guide sleeve is slidably connected to the outer side of the reference pin. The guide sleeve plays a precise guiding role for the reference pin, ensuring that it moves vertically downward.

[0010] Preferably, the inner side of the connecting block is threaded with a fixing screw, the reference pin is located directly above the support assembly, and the fixing screw limits the maximum compression limit of the compression spring.

[0011] Preferably, the support assembly includes a retaining shell, a reference sleeve is slidably connected to the inner side of the retaining shell, a buffer spring is fixedly connected to the bottom of the reference sleeve, a reference block is fixedly connected to the top of the retaining shell, and a reference pin is tightly pressed against the corresponding position of the product body. At this time, the bottom of the product body presses the reference sleeve downward along the retaining shell, forcing the buffer spring to be compressed.

[0012] Preferably, the outer side of the retaining shell is fixedly connected to the inner side of the base, the top of the base is fixedly connected to the bottom of the reference block, the outer side of the outer side of the reference block is slidably connected to the inner wall of the reference sleeve, the product body is movably installed between the reference sleeve and the reference pin, and the reference block limits the maximum movement distance of the reference sleeve, providing stable support for the product.

[0013] (III) Beneficial Effects

[0014] This utility model provides a device for testing the position accuracy of the 1st-3rd gear shift fork in an automotive transmission. It has the following beneficial effects:

[0015] This device positions the product body using a combination of clamping and supporting components. It then pushes the reference base, base, and fixed seat, specifically the first, second, and third detection pins. If all three pins successfully pass through their corresponding detection points on the product body, the overall positional accuracy of the product meets design standards. If any one of the detection pins fails to pass, the product's positional accuracy is deemed unqualified, effectively ensuring the accuracy and reliability of the product's positional accuracy detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the clamping assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the reference pin of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the product body of this utility model.

[0021] In the diagram: 1. Base; 2. Clamping assembly; 3. Support assembly; 4. Lateral push clamp; 5. Reference seat; 6. Detection pin No. 1; 7. Base; 8. Detection pin No. 2; 9. Fixed seat; 10. Detection pin No. 3; 11. Product body; 21. Fixed platform; 22. Longitudinal push clamp; 23. Connecting block; 24. Guide sleeve; 25. Reference pin; 26. Limiting sleeve; 27. Compression spring; 28. Fixing screw; 31. Stop shell; 32. Reference sleeve; 33. Reference block; 34. Buffer spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figure 1-5This utility model provides a technical solution: a device for testing the position of the 1st to 3rd gear shift forks in an automotive transmission, comprising a base 1, a clamping assembly 2 fixedly connected to the top of the base 1, a support assembly 3 fixedly connected to the center of the base 1, a transverse push clamp 4 fixedly connected to the top of the base 1, a reference base 5 fixedly connected to the top of the base 1, a first detection pin 6 slidably connected to the inner side of the reference base 5, a base 7 fixedly connected to the top of the base 1, a second detection pin 8 slidably connected to the inner side of the base 7, a fixed base 9 fixedly connected to the top of the base 1, a third detection pin 10 slidably connected to the inner side of the fixed base 9, the fixed base 9 being located on the side of the base 7 away from the reference base 5, and the transverse push clamp 4 being located on the base 7 close to the base. On one side of the reference seat 5, the clamping component 2 and the support component 3 on the top of the base 1 work together to position the product body 11. The product body 11 is pushed laterally, moving it towards the reference seat 5 until the product is tightly fitted to the reference seat 5, completing the lateral positioning of the product. The product body 11 achieves precise positioning in both the longitudinal and lateral directions, laying a solid foundation for subsequent positional accuracy testing. Then, the first detection pin 6, the second detection pin 8, and the third detection pin 10 within the reference seat 5, the base 7, and the fixed seat 9 are pushed respectively. If the first detection pin 6, the second detection pin 8, and the third detection pin 10 all pass smoothly through the corresponding detection points on the product body 11, it indicates that the overall positional accuracy of the product meets the design standards. If any one of the detection pins fails to pass smoothly, the positional accuracy of the product is deemed unqualified, effectively ensuring the accuracy and reliability of the positional accuracy testing of the product body 11. Also includes:

[0024] The clamping assembly 2 includes a fixed platform 21. A longitudinal pusher 22 is fixedly connected to the top of the fixed platform 21. A connecting block 23 is fixedly connected to the bottom of the longitudinal pusher 22. A compression spring 27 is fixedly connected to the bottom of the connecting block 23. A limit sleeve 26 is fixedly connected to the bottom end of the compression spring 27. A reference pin 25 is fixedly connected to the bottom of the limit sleeve 26. The bottom of the fixed platform 21 is fixedly connected to the top of the base 1. A guide sleeve 24 is fixedly connected to the inner side of the fixed platform 21. The inner side of the guide sleeve 24 is slidably connected to the outer side of the reference pin 25. A fixing screw 28 is threadedly connected to the inner side of the connecting block 23. The reference pin 25 is located directly above the support assembly 3. The support assembly 3 includes a retaining shell 31. A reference sleeve 32 is slidably connected to the inner side of the retaining shell 31. A buffer spring 34 is fixedly connected to the bottom of the reference sleeve 32. A reference block 33 is fixedly connected to the top of the retaining shell 31. The outer side of the retaining shell 31 is fixedly connected to the inner side of the base 1. The top of the base 1 is fixedly connected to the reference block 33. The bottom is fixedly connected, and the outer side of the reference block 33 is slidably connected to the inner wall of the reference sleeve 32. The product body 11 is movably installed between the reference sleeve 32 and the reference pin 25. First, one end of the product body 11 is placed on the reference block 33. Then, the longitudinal pusher 22 on the top of the fixed platform 21 is pushed. The longitudinal pusher 22 drives the connecting block 23, the compression spring 27, the limiting sleeve 26 and the reference pin 25 to move downward together. The guide sleeve 24 plays a precise guiding role for the reference pin 25, ensuring that it moves vertically downward. The fixing screw 28 limits the maximum compression limit of the compression spring 27. Under the elastic action of the compression spring 27, the reference pin 25 is pressed tightly against the corresponding position of the product body 11. At this time, the bottom of the product body 11 presses the reference sleeve 32 down along the stop shell 31, forcing the buffer spring 34 to be compressed. The reference block 33 limits the maximum movement distance of the reference sleeve 32, providing stable support for the product and finally achieving the longitudinal positioning of the product.

[0025] Working principle: In use, the clamping component 2 and the support component 3 on the top of the base 1 work together to position the product body 11. First, one end of the product body 11 is placed on the reference block 33. Then, the longitudinal pusher 22 on the top of the fixed platform 21 is pushed. The longitudinal pusher 22 drives the connecting block 23, the compression spring 27, the limiting sleeve 26 and the reference pin 25 to move downward together. The guide sleeve 24 provides precise guidance for the reference pin 25 to ensure that it moves vertically downward. The fixing screw 28 limits the maximum compression limit of the compression spring 27. Under the elastic action of the compression spring 27, the reference pin 25 is pressed tightly against the corresponding position of the product body 11. At this time, the bottom of the product body 11 presses the reference sleeve 32 down along the stop shell 31, forcing the buffer spring 34 to be compressed. The reference block 33 limits the maximum movement distance of the reference sleeve 32, providing stable support for the product and finally achieving the longitudinal positioning of the product.

[0026] At the same time, the lateral push clamp 4 starts to work, pushing the product body 11 laterally to move it towards the reference seat 5 until the product is in close contact with the reference seat 5, completing the lateral positioning of the product. The product body 11 achieves accurate positioning in both the longitudinal and lateral directions, laying a solid foundation for subsequent positional accuracy testing.

[0027] After the product body 11 is positioned, a positional accuracy test is performed. The reference base 5, base 7, and fixed base 9 are pushed, and detection pins 6 (first detection pin 6), 8 (second detection pin 8), and 10 (third detection pin 10) are pushed. If all three pins pass smoothly through their respective detection points on the product body 11 (with pins 6 and 10 being stepped), the overall positional accuracy of the product meets the design standards. If any one of the detection pins fails to pass smoothly, the product's positional accuracy is deemed unqualified, effectively ensuring the accuracy and reliability of the positional accuracy test on the product body 11.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the position of a 1-3 gear shift fork in an automotive transmission, comprising a base (1), a clamping assembly (2) fixedly connected to the top of the base (1), a support assembly (3) fixedly connected to the center of the base (1), a transverse push clamp (4) fixedly connected to the top of the base (1), a reference seat (5) fixedly connected to the top of the base (1), a first detection pin (6) slidably connected to the inner side of the reference seat (5), a base (7) fixedly connected to the top of the base (1), a second detection pin (8) slidably connected to the inner side of the base (7), a fixed seat (9) fixedly connected to the top of the base (1), and a third detection pin (10) slidably connected to the inner side of the fixed seat (9), characterized in that, Also include: The pressing assembly (2) comprises a fixed platform (21), the top of the fixed platform (21) is fixedly connected with a longitudinal push clamp (22), the bottom of the longitudinal push clamp (22) is fixedly connected with a connecting block (23), the bottom of the connecting block (23) is fixedly connected with a compression spring (27), the bottom end of the compression spring (27) is fixedly connected with a limiting sleeve (26), the bottom of the limiting sleeve (26) is fixedly connected with a reference pin (25).

2. The device for checking the position of the 1-3 shift fork of an automobile gearbox according to claim 1, characterized in that: The fixed seat (9) is located on the side of the base (7) away from the reference seat (5), and the transverse push clamp (4) is located on the side of the base (7) close to the reference seat (5).

3. The device for checking the position of the 1-3 shift fork of an automobile gearbox according to claim 1, characterized in that: The bottom of the fixed platform (21) is fixedly connected with the top of the base (1), the inner side of the fixed platform (21) is fixedly connected with a guide sleeve (24), and the inner side of the guide sleeve (24) is slidably connected with the outer side of the reference pin (25).

4. The device for checking the position of the 1-3 shift fork of an automobile gearbox according to claim 1, characterized in that: The inner side of the connecting block (23) is threadedly connected with a fixed screw rod (28), and the reference pin (25) is located directly above the supporting assembly (3).

5. The device for checking the position of the 1-3 shift fork of an automobile gearbox according to claim 1, characterized in that: The supporting assembly (3) comprises a blocking shell (31), the inner side of the blocking shell (31) is slidably connected with a reference sleeve (32), the bottom of the reference sleeve (32) is fixedly connected with a buffer spring (34), and the top of the blocking shell (31) is fixedly connected with a reference block (33).

6. A device for checking the position of the 1-3 shift fork of an automobile gearbox according to claim 5, characterized in that: The outer side of the blocking shell (31) is fixedly connected with the inner side of the base (1), the top of the base (1) is fixedly connected with the bottom of the reference block (33), the outer side of the reference block (33) is slidably connected with the inner wall of the reference sleeve (32), and the product body (11) is movably mounted between the reference sleeve (32) and the reference pin (25).

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