Position detection device and position detection method for automobile special-shaped member

Abstract

The application relates to a position detection device for automobile special-shaped parts and a detection method thereof, which comprises a detection base, a detection rod and a detection module. The detection rod is rotatably and movably connected to the detection base. A pressing part is movably arranged on the detection rod. The pressing part has a fitting surface matched with the external contour of the automobile special-shaped part. The rotating angle and the moving displacement of the detection rod relative to the detection base are adjusted so that the pressing part is in an initial state or a detection state. In the detection state, the fitting surface can be matched with the automobile special-shaped part. The detection module is used for detecting the rotating angle and the moving distance of the detection rod relative to the detection base. The position deviation of the automobile special-shaped part can be obtained by detecting the rotating angle and the moving distance of the detection rod relative to the detection base. The detection precision is improved. The detection method is simple and fast, the detection cost is reduced, the automobile special-shaped part with the position deviation can be accurately guided to be adjusted, and the product quality is improved.

Description

Technical Field

[0001] This application relates to the field of automotive parts inspection technology, and in particular to a position detection device and method for irregularly shaped automotive parts. Background Technology

[0002] Automotive parts have irregularly shaped components, which are generally used to assemble other automotive parts. If the position of the irregularly shaped components on the automotive parts is off, it will cause problems in the fit between the two automotive parts, such as interference or large gaps between the automotive parts.

[0003] In related technologies, coordinate measuring machines (CMMs) are generally used to detect the position of irregularly shaped automotive parts on automotive components. However, the CMM detection method is complex, has a long detection cycle, and is costly. At the same time, the detection accuracy is low, and it cannot guide the precise adjustment of irregularly shaped automotive parts with positional deviations. Summary of the Invention

[0004] Therefore, it is necessary to provide a position detection device and method for automotive irregularly shaped parts that can improve detection accuracy, is simple and quick to use, reduces detection costs, and can accurately guide the adjustment of positional deviations in automotive irregularly shaped parts, thereby improving product quality.

[0005] A position detection device for automotive irregularly shaped parts, used to cooperate with a clamp for clamping automotive parts, wherein the irregularly shaped automotive parts are disposed on the automotive parts, and the position detection device includes:

[0006] A detection base, which can be fixedly mounted on the fixture;

[0007] A detection rod is rotatably and movably connected to the detection base. A clamping member is movably disposed on the detection rod, and the clamping member has a mating surface adapted to the outer contour of the automotive irregular part.

[0008] Adjusting the rotation angle and movement displacement of the detection rod relative to the detection base allows the clamping member to be in an initial state or a detection state. In the initial state, the contact surface can contact the automotive irregular part, and in the detection state, the contact surface can adhere to the automotive irregular part.

[0009] The detection module is used to detect the rotation angle and movement distance of the detection rod relative to the detection base.

[0010] In one embodiment, the detection rod is rotatably connected to the detection base via an angle turntable.

[0011] In one embodiment, the angle turntable is rotatably connected to the detection base, the detection rod is disposed on the angle turntable, and when the detection rod rotates, it can drive the angle turntable to rotate synchronously.

[0012] And / or, the detection rod is movably connected to the angle turntable along a direction perpendicular to the extension of the detection rod via a mating structure.

[0013] In one embodiment, the mating structure includes a guide groove formed on the angle turntable and a guide sleeve fixedly disposed on the detection rod, the guide sleeve being movably disposed within the guide groove along the extension direction of the guide groove.

[0014] In one embodiment, the detection module includes an angle detection unit and a displacement detection unit. The angle detection unit is used to detect the rotation angle of the detection rod relative to the detection base; the displacement detection unit is used to detect the moving distance of the detection rod relative to the detection base.

[0015] In one embodiment, the angle detection unit includes angle scale lines disposed on the detection base and distributed circumferentially along the angle turntable, and a first pointer disposed on the angle turntable;

[0016] And / or, the displacement detection unit includes displacement scale lines disposed on the angle turntable and distributed along the extension direction of the guide groove, and a second pointer disposed on the guide sleeve.

[0017] In one embodiment, the clamping member is adjustablely positioned on the detection rod along the extension direction of the detection rod.

[0018] In one embodiment, the irregularly shaped automotive part has a feature surface, and the mating surface of the clamping member can be mated and engaged with the feature surface.

[0019] In one embodiment, the automotive irregular part is hemispherical or near-hemispherical.

[0020] This application also provides a method for detecting the position of irregularly shaped automotive parts, using the position detection device for irregularly shaped automotive parts as described above. The method includes the following steps:

[0021] Fix the position of the test base relative to the clamp;

[0022] Adjust the clamping parts so that their mating surfaces come into contact with the irregularly shaped automotive parts;

[0023] Adjust the rotation angle and movement distance of the detection rod relative to the detection base to make the mating surface of the clamping part fit with the irregularly shaped automotive part;

[0024] The detection module acquires the rotation angle and movement distance of the detection rod relative to the detection base.

[0025] In the above solution, the detection rod is rotatably and movablely mounted on the detection base, and a clamping component and a detection module are also provided. By adjusting the rotation angle and movement distance of the detection rod, the mating surface of the clamping component can be made to fit with the automotive irregular part. The detection module can detect the rotation angle and movement distance of the detection rod relative to the detection base. When the mating surface of the clamping component fits with the automotive irregular part, the deviation between the clamping component and the automotive irregular part is consistent. By detecting the rotation angle and movement distance of the detection rod relative to the detection base, the positional deviation of the automotive irregular part on the automotive component can be obtained, which can improve the detection accuracy, and the detection method is simple and fast, which can reduce the detection cost. At the same time, it can accurately guide the adjustment of automotive irregular parts with positional deviations, which can improve product quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the connection structure of the clamp and the position detection device for irregularly shaped automotive parts shown in an embodiment of this application from a first-view perspective.

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0028] Figure 3 This is a schematic diagram of the position detection device for irregularly shaped automotive parts according to an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the connection structure of the clamp and the position detection device for irregularly shaped automotive parts shown in an embodiment of this application from a second perspective.

[0030] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0031] Explanation of reference numerals in the attached figures

[0032] 10. Position detection device; 100. Fixture; 110. First clamping element; 120. Second clamping element; 130. Third clamping element; 131. Horizontal support part; 132. Adjustment part; 133. Rubber pressure head; 200. Detection base; 300. Detection rod; 400. Pressing element; 500. Detection module; 510. Angle detection unit; 511. Angle scale line; 512. First pointer; 520. Displacement detection unit; 521. Displacement scale line; 522. Second pointer; 600. Angle turntable; 700. Mating structure; 710. Guide groove; 720. Guide sleeve; 800. Adjustment component; 810. Fixing element; 820. Adjusting spring; 900. Automotive parts; 910. Automotive irregular parts. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] Please see Figure 1 , Figure 4 and Figure 5 This application relates to a position detection device 10 for a shaped automotive part 910, which cooperates with a clamp 100 for clamping the automotive part 900. The shaped automotive part 910 is disposed on the automotive part 900. Specifically, the clamp 100 includes a first clamping member 110, a second clamping member 120, and a third clamping member 130. The first clamping member 110 and the second clamping member 120 are used to clamp the two oppositely disposed ends of the automotive part 900. The third clamping member 130 is disposed close to the shaped automotive part 910 to fix the shaped automotive part 910.

[0040] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 The third clamping member 130 includes a vertical support portion, a horizontal support portion 131 connected to one end of the vertical support portion, an adjusting portion 132, and a rubber pressure head 133. One end of the adjusting portion 132 is connected to the horizontal support portion 131, and the other end of the adjusting portion 132 is connected to the rubber pressure head 133. The adjusting portion 132 is used to adjust the movement of the rubber pressure head 133 in a direction closer to or farther from the automotive part 900. The rubber pressure head 133 can press against the area of ​​the automotive part 900 where the automotive irregular part 910 is provided, so as to fix the automotive irregular part 910. Exemplarily, the adjusting portion 132 can adopt a linkage structure.

[0041] Please see Figure 2, Figure 3 and Figure 5 The position detection device 10 for the automotive irregular part 910 includes a detection base 200, a detection rod 300, and a detection module 500. The detection base 200 can be fixedly mounted on the fixture 100. The detection rod 300 is used to position the automotive irregular part 910. The detection module 500 is used to detect the position of the automotive irregular part 910 on the automotive part 900. Specifically, the detection base 200 is disposed on the horizontal support 131, and the detection base 200 is disposed opposite to the rubber pressure head 133.

[0042] The detection rod 300 is rotatably and movably connected to the detection base 200. A clamping member 400 is movably disposed on the detection rod 300, and the clamping member 400 has a mating surface adapted to the outer contour of the automotive irregular part 910. By adjusting the rotation angle and movement distance of the detection rod 300, the clamping member 400 can be in an initial state or a detection state. In the initial state, the mating surface can contact the automotive irregular part. In the detection state, the mating surface can abut the automotive irregular part. Specifically, the automotive irregular part 910 has a feature surface, and the mating surface of the clamping member 400 can abut and fit against the feature surface.

[0043] Specifically, the clamping member 400 can move in a direction that approaches or moves away from the automotive part 910. The clamping member 400 is disposed opposite to the rubber pressure head 133, and a clamping space is formed between the clamping member 400 and the rubber pressure head 133, within which the automotive part 900 and the automotive part 910 are located.

[0044] It is important to understand that when it is necessary to detect the position of the irregularly shaped part 910 on the automotive part 900, the rubber pressure head 133 is first adjusted away from the automotive part 900 via the adjustment part 132, and the clamping member 400 is moved away from the irregularly shaped part 910. Then, the automotive part 900 is placed on the fixture 100, and the first clamping member 110 and the second clamping member 120 are used to clamp the opposite ends of the automotive part 900. Next, the clamping member 400 is moved closer to the irregularly shaped part 910 so that the contact surface of the clamping member 400 contacts the irregularly shaped part 910. After the clamping member 400 contacts the irregularly shaped part 910, the contact surface of the clamping member 400 can be adjusted to adhere to the irregularly shaped part 910 by adjusting the rotation angle and movement distance of the detection rod 300. Finally, the rubber pressure head 133 is adjusted in a direction close to the automobile part 900 by the adjustment part 132 so that the rubber pressure head 133 presses against the area of ​​the automobile part 900 where the automobile part 910 is provided, so as to position the automobile part 900.

[0045] Please see Figure 2 , Figure 3 and Figure 5The detection module 500 is used to detect the rotation angle and movement distance of the detection rod 300 relative to the detection base 200. It's important to understand that when the mating surface of the clamping member 400 is in contact with the automotive part 910, the deviation between the clamping member 400 and the automotive part 910 is consistent. The positional deviation of the automotive part 910 on the automotive part 900 can be obtained by detecting the rotation angle and movement distance of the detection rod 300 relative to the detection base 200. If both the rotation angle and movement distance of the detection rod 300 are 0, it indicates that the position of the automotive part 910 is without deviation.

[0046] By rotatably and movablely mounting the detection rod 300 on the detection base 200, and simultaneously providing a clamping component 400 and a detection module 500, the contact surface of the clamping component 400 can be made to fit with the automotive irregular part 910 by adjusting the rotation angle and movement distance of the detection rod 300. The detection module 500 can detect the rotation angle and movement distance of the detection rod 300 relative to the detection base 200. When the contact surface of the clamping component 400 fits with the automotive irregular part 910, the deviation between the clamping component 400 and the automotive irregular part 910 is consistent. By detecting the rotation angle and movement distance of the detection rod 300 relative to the detection base 200, the positional deviation of the automotive irregular part 910 on the automotive part 900 can be obtained, which can improve detection accuracy, and the detection method is simple and quick, reducing detection costs. At the same time, it can accurately guide the adjustment of the automotive irregular part 910 with positional deviation, thereby improving product quality.

[0047] The position detection device 10 for an automotive irregular part 910 according to an embodiment of this application is described in detail below with reference to the accompanying drawings.

[0048] Please see Figure 2 , Figure 3 and Figure 5 According to some embodiments of this application, optionally, the detection rod 300 is rotatably connected to the detection base 200 via an angle turntable 600. Specifically, the angle turntable 600 is rotatably connected to the detection base 200, and the detection rod 300 is disposed on the angle turntable 600. When the detection rod 300 rotates, it can drive the angle turntable 600 to rotate synchronously.

[0049] More specifically, the detection base 200 has a mounting groove, and the angle turntable 600 is rotatably connected to the mounting groove. The mounting groove extends through the detection base 200 and is located in the middle of the detection base 200. The angle turntable 600 has a circular cross-section in its axial direction. A through hole is formed on the angle turntable 600, and the detection rod 300 passes through the through hole. Exemplarily, the detection rod 300 has a flat cross-section in its axial direction, and correspondingly, the through hole also has a flat cross-section in its axial direction.

[0050] Please see Figure 2, Figure 3 and Figure 5 The detection rod 300 is movably connected to the angle turntable 600 along the extension direction perpendicular to the detection rod 300 via a mating structure 700. Specifically, the mating structure 700 includes a guide groove 710 formed on the angle turntable 600 and a guide sleeve 720 fixedly disposed on the detection rod 300. The guide sleeve 720 is movably disposed within the guide groove 710 along the extension direction of the guide groove 710.

[0051] In this embodiment, the guide groove 710 is disposed at the edge of the through hole. The guide sleeve 720 is concentrically disposed with the detection rod 300. When the guide sleeve 720 moves along the extension direction of the guide groove 710, the detection rod 300 can move within the through hole, and when the detection rod 300 rotates, it can drive the guide sleeve 720 to rotate, thereby driving the angle turntable 600 to rotate.

[0052] Please see Figure 2 , Figure 3 and Figure 5 According to some embodiments of this application, optionally, the detection module 500 includes an angle detection unit 510 and a displacement detection unit 520. The angle detection unit 510 is used to detect the rotation angle of the detection rod 300 relative to the detection base 200. The displacement detection unit 520 is used to detect the moving distance of the detection rod 300 relative to the detection base 200.

[0053] Specifically, the angle detection unit 510 includes angle scale lines 511 disposed on the detection base 200 and distributed circumferentially along the angle turntable 600, and a first pointer 512 disposed on the angle turntable 600. The displacement detection unit 520 includes displacement scale lines 521 disposed on the angle turntable 600 and distributed along the extension direction of the guide groove 710, and a second pointer 522 disposed on the guide sleeve 720.

[0054] For example, the rotation angle of the detection rod 300 relative to the detection base 200 can be read using the first pointer 512 and the angle scale line 511. The movement distance of the detection rod 300 relative to the detection base 200 can be read using the second pointer 522 and the displacement scale line 521. For example, if the movement distance of the detection rod 300 relative to the detection base 200 is L, and the rotation angle of the detection rod 300 relative to the detection base 200 is α, then the position coordinates (L*cosα, L*sinα) of the automotive irregular part 910 can be obtained. This allows for the measurement of the positional deviation of the automotive irregular part 910, enabling precise adjustment of the automotive irregular part 910 with positional deviation, thereby improving product quality.

[0055] Please see Figure 2 , Figure 3 and Figure 5According to some embodiments of this application, optionally, the clamping member 400 is adjustablely disposed on the detection rod 300 by means of the adjusting assembly 800.

[0056] Specifically, the clamping member 400 is sleeved on the detection rod 300 and can move along the extension direction of the detection rod 300. The adjusting assembly 800 includes a fixing member 810 disposed on the detection rod 300 and an adjusting spring 820 sleeved on the detection rod 300, the adjusting spring 820 being connected between the fixing member 810 and the clamping member 400. More specifically, the clamping member 400 has a sliding groove, and the detection rod 300 is slidably connected within the sliding groove. Specifically, the sliding groove does not penetrate the clamping member 400.

[0057] It should be understood that: when it is necessary to move the clamping part 400 away from the automotive irregular part 910, it is only necessary to compress the adjusting spring 820; when it is necessary to move the clamping part 400 closer to the automotive irregular part 910, it is only necessary to release the adjusting spring 820. Under the elastic force of the adjusting spring 820, the clamping part 400 can be moved closer to the automotive irregular part 910, and the adjusting spring 820 can play a buffering role to prevent the automotive part 900 from deforming.

[0058] Furthermore, the fixing member 810 has the same structure as the guide sleeve 720, and a mating groove is provided on the angle turntable 600. The fixing member 810 is movably disposed in the mating groove along the extension direction of the mating groove, and the mating groove can play a guiding role. Specifically, the mating groove and the guide groove 710 are respectively disposed at opposite ends of the angle turntable 600, which can make the movement of the detection rod 300 more balanced and can effectively prevent the detection rod 300 from deviating.

[0059] Please see Figure 2 , Figure 3 and Figure 5 According to some embodiments of this application, the automotive irregular part 910 may optionally be hemispherical or near-hemispherical. The automotive irregular part 910 may also be other convex structures, such as polygonal structures, or it may be a hole. This can be achieved simply by manufacturing a corresponding clamping member 400 for the structure of the automotive irregular part 910, satisfying the position detection needs of various types of automotive irregular parts 910.

[0060] Please see Figure 1 , Figure 4 and Figure 5 This application also provides a method for detecting the position of an irregularly shaped automotive part 910, using the position detection device 10 for the irregularly shaped automotive part 910 described above. The method includes the following steps:

[0061] Step 1: Fix the position of the detection base 200 relative to the clamp 200.

[0062] Step 2: Adjust the clamping part 400 so that the mating surface of the clamping part 400 comes into contact with the automotive irregular part 910.

[0063] Before step two, the rubber pressure head 133 needs to be adjusted away from the automotive part 900 via the adjustment part 132, and the clamping member 400 needs to be moved away from the automotive irregular part 910 to leave space to accommodate the automotive part 900 and the automotive irregular part 910. Then, the automotive part 900 is placed on the fixture 100, and the first clamping member 110 and the second clamping member 120 are used to clamp the two opposite ends of the automotive part 900.

[0064] In this step, the clamping member 400 is moved in a direction close to the automotive irregular part 910 so that the mating surface of the clamping member 400 comes into contact with the automotive irregular part 910.

[0065] Step 3: Adjust the rotation angle and movement distance of the detection rod 300 relative to the detection base 200 so that the contact surface of the clamping member 400 is in contact with the automotive irregular part 910. Once the contact surface of the clamping member 400 is in contact with the automotive irregular part 910, the deviation between the clamping member 400 and the automotive irregular part 910 is consistent. The positional deviation of the automotive irregular part 910 can be obtained by detecting the rotation angle and movement distance of the detection rod 300 relative to the detection base 200.

[0066] After the mating surface of the clamping member 400 is mated with the automotive irregular part 910, the rubber pressure head 133 is finally adjusted in the direction close to the automotive part 900 by the adjustment part 132 so that the rubber pressure head 133 presses against the area of ​​the automotive part 900 where the automotive irregular part 910 is provided, so as to position the automotive part 900.

[0067] Step 4: Obtain the rotation angle and moving distance of the detection rod 300 relative to the detection base 200 detected by the detection module 500. In this embodiment, the rotation angle of the detection rod 300 relative to the detection base 200 can be read through the first pointer 512 and the angle scale line 511; the moving distance of the detection rod 300 relative to the detection base 200 can be read through the second pointer 522 and the displacement scale line 521. For example, if the moving distance of the detection rod 300 relative to the detection base 200 is L, and the rotation angle of the detection rod 300 relative to the detection base 200 is α, then the position coordinates (L*cosα, L*sinα) of the automotive irregular part 910 can be obtained. This allows for the measurement of the positional deviation of the automotive irregular part 910, which can accurately guide the adjustment of the automotive irregular part 910 with positional deviation, thereby improving product quality.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A position detection device for an irregularly shaped automotive part, used to cooperate with a clamp for clamping the automotive part, the irregularly shaped automotive part being disposed on the automotive part, characterized in that, include: A detection base, which can be fixedly mounted on the fixture; A detection rod is rotatably and movably connected to the detection base. A clamping member is movably disposed on the detection rod, and the clamping member has a mating surface adapted to the outer contour of the automotive irregular part. Adjusting the rotation angle and movement displacement of the detection rod relative to the detection base allows the clamping member to be in an initial state or a detection state. In the initial state, the contact surface can contact the automotive irregular part, and in the detection state, the contact surface can adhere to the automotive irregular part. A detection module is used to detect the rotation angle and moving distance of the detection rod relative to the detection base; The detection rod is rotatably connected to the detection base via an angle turntable; The angle turntable is rotatably connected to the detection base, the detection rod is disposed on the angle turntable, and when the detection rod rotates, it can drive the angle turntable to rotate synchronously. The detection rod is movably connected to the angle turntable along a direction perpendicular to the extension of the detection rod via a mating structure; The mating structure includes a guide groove formed on the angle turntable and a guide sleeve fixedly disposed on the detection rod. The guide sleeve is movably disposed in the guide groove along the extension direction of the guide groove. The detection module includes an angle detection unit and a displacement detection unit. The angle detection unit is used to detect the rotation angle of the detection rod relative to the detection base; the displacement detection unit is used to detect the moving distance of the detection rod relative to the detection base. The angle detection unit includes angle scale lines disposed on the detection base and distributed circumferentially along the angle turntable, and a first pointer disposed on the angle turntable; The displacement detection unit includes displacement scale lines disposed on the angle turntable and distributed along the extension direction of the guide groove, and a second pointer disposed on the guide sleeve.

2. The position detection device for irregularly shaped automotive parts according to claim 1, characterized in that, The clamping member is adjustablely positioned on the detection rod along the extension direction of the detection rod.

3. The position detection device for irregularly shaped automotive parts according to claim 1, characterized in that, The irregularly shaped automotive part has a feature surface, and the mating surface of the clamping member can fit and engage with the feature surface.

4. The position detection device for irregularly shaped automotive parts according to claim 1, characterized in that, The irregularly shaped automotive parts are hemispherical or near-hemispherical.

5. A method for detecting the position of an irregularly shaped automotive part, employing the position detection device for an irregularly shaped automotive part as described in any one of claims 1 to 4, the position detection method comprising the following steps: This fixes the position of the testing base relative to the clamp. Adjust the clamping parts so that their mating surfaces come into contact with the irregularly shaped automotive parts; Adjust the rotation angle and movement distance of the detection rod relative to the detection base to make the mating surface of the clamping part fit with the irregularly shaped automotive part; The detection module acquires the rotation angle and movement distance of the detection rod relative to the detection base.

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