Automobile part testing fixture

Abstract

The utility model relates to the technical field of part detection, in particular to an automobile part detection tool which comprises a bearing base, a fixing assembly and a measuring assembly. According to the utility model, through the optimized design of the fixing assembly and the measuring assembly, the fixing assembly comprises an adjustable slide rail and a fixing block, the position can be flexibly adjusted according to the shapes and sizes of different parts, the applicability of the gauge is ensured, the measuring assembly combines a horizontal adjusting structure and a vertical adjusting structure, and a threaded column is matched with a nut with a buckle, so that the measuring accuracy is improved. The measuring position can be accurately adjusted, the connection of the spring and the fixing rod ensures that the elastic stress generated in the adjusting process can maintain a stable measuring state, the design of the guide rod and the screw rod improves the precision and stability of the whole structure, errors possibly generated in the operation process are avoided, and the measuring accuracy is improved. The problems that a traditional measuring tool is low in adaptability to detection of the inner diameters of tubular parts with different depths, consequently, the measuring precision is insufficient, and errors are increased are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts detection, in particular to an automobile parts inspection tool. Background Art

[0002] As the automotive industry continues to increase its requirements for performance and safety, tubular components are becoming increasingly important in various automotive systems, especially in exhaust, cooling, fuel and hydraulic systems. As one of the key dimensions of the pipeline, the inner diameter directly affects the efficiency of fluid flow and the stability of the system. With the promotion of lightweight and high-efficiency automotive technologies, the design and manufacturing requirements of tubular components are becoming more refined and standardized. In order to ensure that the fluid channel of the pipeline is unobstructed, the accurate measurement of the inner diameter has become an important part of quality control.

[0003] The existing technology has certain limitations in the detection of the inner diameter of tubular automotive parts, especially when dealing with the inner diameter measurement of different depths, it is often unable to maintain sufficient accuracy. Traditional measuring tools, such as internal diameter calipers and gauges, are usually only suitable for measuring shallower parts. As the depth of the pipeline increases, the contact instability and error of the measuring tool will gradually increase. In addition, the existing technology has poor adaptability to the depth of the pipeline and cannot accurately measure the inner diameter of the deep pipeline. Especially when the pipeline is long or the depth is uneven, it is easy to have a measurement blind spot or error, affecting the accuracy and consistency of the overall quality control. Utility Model Content

[0004] To this end, the utility model provides an automobile parts inspection tool to overcome the problems in the prior art of insufficient measurement accuracy and increased error due to the low adaptability of traditional measuring tools to the detection of inner diameters of tubular parts of different depths.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an automobile parts inspection tool, comprising:

[0006] A load-bearing base, on which a fixing component and a measuring component are arranged;

[0007] The fixing assembly includes a slide rail, a limit baffle and a plurality of fixing blocks, and the fixing blocks can move along the slide rail;

[0008] The measuring assembly includes a measuring ruler, a horizontal adjustment structure, a screw rod, a probe structure, a guide rod and a fixed rod. A guide hole is provided on the guide rod, and a buckle nut is provided on the outer side of the guide hole. One end of the horizontal adjustment structure is a threaded column, which extends out of the guide hole and meshes with the buckle nut. A spring is provided on the indicating angle at the other end of the horizontal adjustment structure, and is connected to the fixed rod through the spring. When the buckle nut drives the horizontal adjustment structure to move horizontally through rotation, the spring is in a stretched state and generates elastic stress. The indicating angle coincides with the upper edge of the measuring ruler in the horizontal direction. The horizontal adjustment structure also includes a vertical adjustment platform, a circular hole is provided on the vertical adjustment platform, and a rotating nut is provided above the circular hole. The upper end of the screw rod extends out of the circular hole and meshes with the rotating nut, and the lower end of the screw rod meshes with the probe structure.

[0009] Furthermore, a plurality of protruding balls are arranged between the slide rail and the fixed block, and the fixed block contacts the inner end surface of the slide rail through the balls.

[0010] Furthermore, a screw-shaped extension head is provided at one end of the vertical adjustment platform, and the vertical adjustment platform is connected to the threaded column via the extension head.

[0011] Furthermore, a groove is provided at the connection end of the threaded column and the vertical adjustment platform, and the head of the extension head is embedded in the groove to form a mechanical interlocking with the groove.

[0012] Furthermore, a plurality of balls are arranged between the opening of the groove and the column section of the extension head, and the opening of the groove contacts the surface of the column section of the extension head through the balls.

[0013] Furthermore, a screw slot is arranged at the top of the probe structure, and a pointed protrusion is arranged at the bottom of the screw slot.

[0014] Furthermore, a rotating buckle with a buckle handle is provided on the plane of the buckle nut, and a rotating handle is provided on the side. The buckle nut enters a released state when the rotating buckle rotates along with the buckle handle.

[0015] Furthermore, a nut slot is provided in the rotating buckle, and the nut slot is a hollow polygonal prism.

[0016] Furthermore, a chamfer is provided on the top surface of the cavity area of ​​the polygonal prism of the nut clamping slot.

[0017] Furthermore, a polygonal prism protrusion is provided on the plane of the buckle nut, and the polygonal prism protrusion can cooperate and engage with the cavity polygonal prism.

[0018] Furthermore, by setting a number of protruding balls between the slide rail and the fixed block, the contact between the fixed block and the slide rail is smoother, reducing friction and wear, and ensuring flexibility and stability during position adjustment. The ball design allows the fixed block to move more smoothly along the slide rail, improving adjustment accuracy and ease of operation, while extending the service life of the equipment and reducing maintenance costs.

[0019] Furthermore, by providing a screw-shaped extension head at one end of the vertical adjustment platform and connecting the extension head with the threaded column, the stability and accuracy of the vertical adjustment are ensured. This design provides the function of easy disassembly and adjustment, making the adjustment process easier. At the same time, through the close fit of the threaded column, the adjustment platform is ensured to be firmly fixed during use, avoiding any looseness or error, which helps to improve the measurement accuracy and the overall reliability of the equipment.

[0020] Furthermore, by providing a groove at the connection end of the threaded column and the vertical adjustment table, and embedding the head of the extension head into the groove to form a mechanical interlock, a more secure and reliable connection method is provided. This design effectively prevents the adjustment table from loosening or shifting during use, ensuring stability and accuracy during the adjustment process. At the same time, the mechanical interlocking structure simplifies the operation, improves the convenience and safety of the connection, and enhances the service life and performance reliability of the overall equipment.

[0021] Furthermore, by setting a number of balls between the opening of the groove and the column section of the extension head, the contact between the groove and the surface of the column section is smoother, reducing friction and wear, and improving flexibility and smoothness during adjustment. The ball design not only helps to achieve precise mechanical interlocking, but also effectively relieves the pressure caused by operation, reduces equipment loss, ensures the long-term stability and high precision of the connection, and thus improves the overall inspection fixture usage experience and reliability.

[0022] Furthermore, by providing a screw slot at the top of the probe structure and designing the bottom of the slot as a pointed protrusion, it can better cooperate with the screw to achieve precise positioning and fixation. This design enhances the bite force between the slot and the screw, improves the stability of the probe structure during the measurement process, and prevents any loosening or displacement. In addition, the pointed protrusion can effectively guide the screw into the slot, simplifying the installation and adjustment process, and improving the convenience and accuracy of operation.

[0023] Furthermore, by providing a rotating buckle with a buckle handle on the plane of the buckle nut and configuring a rotating handle on the side, the buckle nut can be easily released under the action of the rotating buckle. This design simplifies the adjustment and removal process of the nut, improves the convenience and efficiency of operation, and avoids the problems of stagnation or inconvenience in operation that may occur in traditional methods. The design of the rotating buckle also enhances the stability of the nut fixation and ensures the reliability during the measurement process.

[0024] Furthermore, by providing a nut slot in the rotating buckle and designing it as a hollow polygonal prism structure, the close fit and stability between the buckle and the nut are enhanced. The shape of the polygonal prism provides a stronger locking effect, preventing the nut from loosening or sliding during use, thereby ensuring a high degree of accuracy and reliability during the measurement process. In addition, the cavity design makes the loading and unloading of the slot easier, improving the efficiency and convenience of operation.

[0025] Furthermore, by providing a chamfer on the top surface of the polygonal prism cavity area of ​​the nut slot, the jamming phenomenon that may occur during installation or removal can be effectively reduced. The chamfer design makes the contact between the buckle and the nut smoother, avoiding damage to the surface of the nut or buckle by sharp angles, thereby improving the durability and stability of the overall structure. At the same time, the chamfered shape also facilitates the accurate entry of the nut into the slot, simplifies the operation process, and improves the convenience and efficiency of use.

[0026] Furthermore, by providing a polygonal prism protrusion on the plane of the buckle nut and cooperating with the hollow polygonal prism slot, a more secure snap-fit ​​structure can be achieved. This design enhances the connection stability between the nut and the buckle, ensuring that it is not easy to loosen or slip during operation, thereby improving the accuracy and safety of the overall measurement. The cooperation between the polygonal prism protrusion and the hollow slot makes the installation and removal process smoother, reduces friction and wear during operation, prolongs the service life, and improves the reliability of the equipment.

[0027] Compared with the prior art, the beneficial effect of the utility model is that, through the optimized design of the fixing component and the measuring component, an accurate and stable measurement solution is provided. The fixing component includes an adjustable slide rail and a fixing block, which allows the position to be flexibly adjusted according to the shape and size of different parts and components, ensuring the applicability of the inspection fixture. The measuring component combines the horizontal and vertical adjustment structures, and the measurement position can be accurately adjusted by using the cooperation of the threaded column and the buckle nut; and the connection between the spring and the fixing rod ensures that the elastic stress generated during the adjustment process can maintain a stable measurement state. The design of the guide rod and the screw improves the accuracy and stability of the overall structure, avoiding errors that may occur during operation, especially the design of the buckle nut and the rotating buckle, making the horizontal adjustment process smoother and more stable. The inspection fixture not only has high-precision measurement capabilities, but also provides a simple operation experience through humanized design. It can be widely used in the precision measurement, inspection and assembly of automotive parts, improve production efficiency and product quality, and effectively solve the problem of insufficient measurement accuracy and increased errors caused by the low adaptability of traditional measuring tools to the inner diameter detection of tubular parts of different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front cross-sectional view of the automobile parts inspection fixture of this embodiment;

[0029] Figure 2 This is a top view of the structure of the automobile parts inspection fixture of this embodiment;

[0030] Figure 3 Schematic diagram of the structure of the probe in this embodiment;

[0031] Figure 4 This is a schematic diagram of the structure of the buckle nut of this embodiment;

[0032] Explanation of the reference numerals in the accompanying drawings: 1. load-bearing base; 2. slide rail; 3. limit baffle; 4. fixed block; 31. measuring ruler; 32. horizontal adjustment structure; 33. screw; 34. probe structure; 35. guide rod; 36. fixing rod; 37. ball bearing; 351. guide hole; 352. buckle nut; 323. indication angle; 324. vertical adjustment table; 3241. round hole; 3242. extension head; 325. rotating nut; 3211. groove; 341. screw slot; 3521. rotating buckle; 3522. buckle handle; 3523. nut slot. DETAILED DESCRIPTION

[0033] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0034] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] See also Figure 1 As shown, it is a front cross-sectional view of the automobile parts inspection fixture of this embodiment;

[0038] Please continue reading Figure 2 As shown, it is a top view of the structure of the automobile parts inspection fixture of this embodiment;

[0039] This embodiment provides an automobile parts inspection tool, including:

[0040] A load-bearing base 1, on which a fixing component and a measuring component are arranged;

[0041] The fixing assembly includes a slide rail 2, a limit baffle 3 and a plurality of fixing blocks 4, and the fixing blocks 4 can move along the slide rail 2;

[0042] The measuring assembly includes a measuring ruler 31, a horizontal adjustment structure 32, a screw rod 33, a probe structure 34, a guide rod 35 and a fixed rod 36. The guide rod 35 is provided with a guide hole 351, and a buckle nut 352 is provided on the outer side of the guide hole 351. One end of the horizontal adjustment structure 32 is a threaded column 321, and the threaded column 321 extends from the guide hole 351 and engages with the buckle nut 352. The indicating angle 323 at the other end of the horizontal adjustment structure 32 is provided with a spring 322, which is connected to the fixed rod 36 through the spring 322. 322 is in a stretched state and generates elastic stress when the buckle nut 352 rotates to drive the horizontal adjustment structure 32 to move horizontally. The indicating angle 323 coincides with the upper edge of the measuring ruler 31 in the horizontal direction. The horizontal adjustment structure 32 also includes a vertical adjustment platform 324. A circular hole 3241 is provided on the vertical adjustment platform 324. A rotating nut 325 is provided above the circular hole 3241. The upper end of the screw rod 33 extends from the circular hole 3241 and meshes with the rotating nut 325. The lower end of the screw rod 33 meshes with the probe structure 34.

[0043] The inspection fixture of this application is mainly used for testing tubular parts with the same outer diameter but different inner diameters. The design of the fixed block is based on the size range of a specific outer diameter, providing a stable holding function to ensure the stability of the pipe during the measurement process. The measurement of the inner diameter is completed by the probe and the measuring assembly, and its structure can adapt to the detection needs of different depths and inner diameter changes to achieve accurate measurement.

[0044] During the whole process of measuring the inner diameter of tubular parts, the gauge first places the tubular parts to be measured between the limit baffle and several fixed blocks on the slide rail. By adjusting the position of the fixed block, it slides along the slide rail to the appropriate position, and uses the limit baffle and the fixed block to clamp the outer diameter of the tube together to ensure that the parts are fixed firmly. The ball design between the fixed block and the slide rail provides smooth sliding and fine-tuning capabilities, making the clamping more flexible. Then the horizontal adjustment structure is adjusted by rotating the buckle nut to align the probe with the opening of the part to be measured. The vertical adjustment table further adjusts the height of the probe by rotating the screw to ensure that the probe can accurately extend into the internal measurement area of ​​the part. After the probe enters the interior of the part, it is stably guided along the guide hole of the guide rod to avoid the deviation of the probe due to gravity. The design of the guide hole and the threaded column forms an effective support, and the probe can be kept on the specified measurement path through engagement and guiding. The probe structure is accurately positioned by the screw slot and the pointed protrusion to measure the inner diameter size at a deep depth. The indicating angle of the horizontal adjustment structure always coincides with the edge of the measuring ruler during the measurement process. The inner diameter data is read using the measuring ruler, and the inner diameter dimensions of different positions inside the measured part are recorded in combination with the depth of the probe. By adjusting the screw and the probe, multiple positions can be repeatedly measured to ensure the comprehensiveness of the data. After the measurement is completed, the part is removed from the fixture by releasing the fixed block and the limit baffle to prepare for the next measurement task.

[0045] Through the optimized design of the fixing component and the measuring component, an accurate and stable measurement solution is provided. The fixing component includes an adjustable slide rail 2 and a fixing block 4, which allows the position to be flexibly adjusted according to the shape and size of different parts to ensure the applicability of the inspection fixture. The measuring component combines the horizontal and vertical adjustment structures. The threaded column 321 and the buckle nut 352 can be used to accurately adjust the measurement position; the connection between the spring 322 and the fixing rod 36 ensures that the elastic stress generated during the adjustment process can maintain a stable measurement state. The design of the guide rod 35 and the screw 33 improves the accuracy and stability of the overall structure and avoids errors that may occur during operation. In particular, the design of the buckle nut 352 and the rotating buckle 3521 makes the horizontal adjustment process smoother and more stable. The inspection fixture not only has high-precision measurement capabilities, but also provides a simple operation experience through humanized design. It can be widely used in the precision measurement, inspection and assembly of automotive parts, improve production efficiency and product quality, and effectively solve the problem of insufficient measurement accuracy and increased errors caused by the low adaptability of traditional measuring tools to the inner diameter detection of tubular parts of different depths.

[0046] Specifically, a plurality of protruding balls 37 are provided between the slide rail 2 and the fixed block 4 , and the fixed block 4 contacts the inner end surface of the slide rail 2 through the balls 37 .

[0047] By providing a plurality of protruding balls 37 between the slide rail 2 and the fixed block 4, the contact between the fixed block 4 and the slide rail 2 is smoother, friction and wear are reduced, and flexibility and stability during position adjustment are ensured. The design of the balls 37 enables the fixed block 4 to move more smoothly along the slide rail 2, improving adjustment accuracy and ease of operation, while extending the service life of the equipment and reducing maintenance costs.

[0048] Specifically, a screw-shaped extension head 3242 is provided at one end of the vertical adjustment platform 324 , and the vertical adjustment platform 324 is connected to the threaded column 321 via the extension head 3242 .

[0049] By providing a screw-shaped extension head 3242 at one end of the vertical adjustment platform 324 and connecting the extension head 3242 with the threaded column 321, the stability and accuracy of the vertical adjustment are ensured. This design provides the function of easy disassembly and adjustment, making the adjustment process easier. At the same time, the tight fit of the threaded column 321 ensures that the adjustment platform is firmly fixed during use, avoiding any looseness or error, which helps to improve the measurement accuracy and the overall reliability of the equipment.

[0050] Specifically, a groove 3211 is provided at the connection end between the threaded column 321 and the vertical adjustment platform 324 , and the head of the extension head 3242 is embedded in the groove 3211 to form a mechanical interlock with the groove 3211 .

[0051] By providing a groove 3211 at the connection end of the threaded column 321 and the vertical adjustment platform 324, and embedding the head of the extension head 3242 therein to form a mechanical interlock, a more secure and reliable connection method is provided. This design effectively prevents the adjustment platform from loosening or shifting during use, ensuring stability and accuracy during the adjustment process. At the same time, the mechanical interlocking structure simplifies the operation, improves the convenience and safety of the connection, and enhances the service life and performance reliability of the overall equipment.

[0052] Specifically, a plurality of balls 37 are disposed between the opening of the groove 3211 and the column section of the extension head 3242 , and the opening of the groove 3211 contacts the surface of the column section of the extension head 3242 through the balls 37 .

[0053] By arranging a number of balls 37 between the opening of the groove 3211 and the column section of the extension head 3242, the contact between the groove 3211 and the surface of the column section is smoother, reducing friction and wear, and improving flexibility and smoothness during adjustment. The ball 37 design not only helps to achieve precise mechanical interlocking, but also effectively relieves the pressure caused by operation, reduces equipment loss, ensures long-term stability and high precision of the connection, and thus improves the overall inspection fixture usage experience and reliability.

[0054] Please continue reading Figure 3 As shown, it is a schematic diagram of the structure of the probe structure of this embodiment;

[0055] Specifically, a screw slot 341 is provided at the top of the probe structure 34 , and a pointed protrusion is provided at the bottom of the screw slot 341 .

[0056] By setting a screw slot 341 at the top of the probe structure 34 and designing the bottom of the slot as a pointed protrusion, it can better cooperate with the screw 33 to achieve accurate positioning and fixation. This design enhances the bite force between the slot and the screw 33, improves the stability of the probe structure 34 during the measurement process, and prevents any loosening or displacement. In addition, the pointed protrusion can effectively guide the screw 33 into the slot, simplifying the installation and adjustment process, and improving the convenience and accuracy of operation.

[0057] Please continue reading Figure 4 As shown, it is a schematic diagram of the structure of the buckle nut of this embodiment;

[0058] Specifically, a rotating buckle 3521 with a buckle handle 3522 is provided on the plane of the buckle nut 352, and a rotating handle is provided on the side. The buckle nut 352 enters a released state when the rotating buckle 3521 rotates along with the buckle handle 3522.

[0059] By providing a rotating buckle 3521 with a buckle handle 3522 on the plane of the buckle nut 352 and configuring a rotating handle on the side, the buckle nut 352 can easily enter a released state under the action of the rotating buckle 3521. This design simplifies the adjustment and removal process of the nut, improves the convenience and efficiency of operation, and avoids the problems of stagnation or inconvenience in operation that may occur in traditional methods. The design of the rotating buckle 3521 also enhances the stability of the nut fixation and ensures the reliability during the measurement process.

[0060] Specifically, a nut slot 3523 is provided in the rotating buckle 3521, and the nut slot 3523 is a hollow polygonal prism.

[0061] By setting a nut clamping slot 3523 in the rotating clamping buckle 3521 and designing it as a hollow polygonal prism structure, the close fit and stability between the clamping buckle and the nut are enhanced. The shape of the polygonal prism provides a stronger locking effect, preventing the nut from loosening or sliding during use, thereby ensuring a high degree of accuracy and reliability during the measurement process. In addition, the cavity design makes it easier to load and unload the clamping slot, improving the efficiency and convenience of operation.

[0062] Specifically, the top surface of the cavity area of ​​the polygonal prism of the nut slot 3523 is chamfered.

[0063] By providing a chamfer on the top surface of the polygonal prism cavity area of ​​the nut slot 3523, the jamming phenomenon that may occur during installation or removal can be effectively reduced. The chamfer design makes the contact between the buckle and the nut smoother, avoiding damage to the surface of the nut or buckle by sharp angles, thereby improving the durability and stability of the overall structure. At the same time, the chamfer shape also facilitates the accurate entry of the nut into the slot, simplifies the operation process, and improves the convenience and efficiency of use.

[0064] Specifically, a polygonal prism protrusion is provided on the plane of the buckle nut 352, and the polygonal prism protrusion can cooperate and engage with the cavity polygonal prism.

[0065] By providing a polygonal prism protrusion on the plane of the buckle nut 352 and cooperating with the cavity polygonal prism slot, a more secure snap-fit ​​structure can be achieved. This design enhances the connection stability between the nut and the buckle, ensuring that it is not easy to loosen or slip during operation, thereby improving the accuracy and safety of the overall measurement. The cooperation between the polygonal prism protrusion and the cavity slot makes the installation and disassembly process smoother, reduces friction and wear during operation, extends the service life, and improves the reliability of the equipment. So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

[0066] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automobile parts inspection fixture, characterized in that: include: A load-bearing base, on which a fixing component and a measuring component are arranged; The fixing assembly includes a slide rail, a limit baffle and a plurality of fixing blocks, and the fixing blocks can move along the slide rail; The measuring assembly includes a measuring ruler, a horizontal adjustment structure, a screw rod, a probe structure, a guide rod and a fixed rod. A guide hole is provided on the guide rod, and a buckle nut is provided on the outer side of the guide hole. One end of the horizontal adjustment structure is a threaded column, which extends out of the guide hole and meshes with the buckle nut. A spring is provided on the indicating angle at the other end of the horizontal adjustment structure, and is connected to the fixed rod through the spring. When the buckle nut drives the horizontal adjustment structure to move horizontally through rotation, the spring is in a stretched state and generates elastic stress. The indicating angle coincides with the upper edge of the measuring ruler in the horizontal direction. The horizontal adjustment structure also includes a vertical adjustment platform, a circular hole is provided on the vertical adjustment platform, and a rotating nut is provided above the circular hole. The upper end of the screw rod extends out of the circular hole and meshes with the rotating nut, and the lower end of the screw rod meshes with the probe structure.

2. The automobile parts inspection fixture according to claim 1, characterized in that: A plurality of protruding balls are arranged between the slide rail and the fixed block, and the fixed block contacts the inner end surface of the slide rail through the balls.

3. The automobile parts inspection fixture according to claim 2, characterized in that: A screw-shaped extension head is arranged at one end of the vertical adjustment platform, and the vertical adjustment platform is connected to the threaded column through the extension head.

4. The automobile parts inspection fixture according to claim 3, characterized in that: A groove is provided at the connection end between the threaded column and the vertical adjustment platform, and the head of the extension head is embedded in the groove to form a mechanical interlock with the groove.

5. The automobile parts inspection fixture according to claim 4, characterized in that: A plurality of balls are arranged between the opening of the groove and the column section of the extension head, and the opening of the groove contacts the surface of the column section of the extension head through the balls.

6. The automobile parts inspection fixture according to claim 5, characterized in that: The top of the probe structure is provided with a screw slot, and the bottom of the screw slot is provided with a pointed protrusion.

7. The automobile parts inspection fixture according to claim 6, characterized in that: A rotating buckle with a buckle handle is arranged on the plane of the buckle nut, and a rotating handle is arranged on the side. The buckle nut enters a released state when the rotating buckle rotates along with the buckle handle.

8. The automobile parts inspection fixture according to claim 7, characterized in that: A nut slot is provided in the rotating buckle, and the nut slot is a hollow polygonal prism.

9. The automobile parts inspection fixture according to claim 8, characterized in that: The top surface of the cavity area of ​​the polygonal prism of the nut clamping slot is provided with a chamfer.

10. The automobile parts inspection fixture according to claim 9, characterized in that: A polygonal prism protrusion is arranged on the plane of the buckle nut, and the polygonal prism protrusion can be matched and engaged with the cavity polygonal prism.

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