A testing device for a test head

Abstract

The application provides a testing device of a testing head, which comprises an L-shaped support seat, a testing head, a moving seat, a lifting piece and a guide piece. The testing head comprises a testing head main body and a testing part. The testing head main body is installed on the installation part. The testing part is swingably connected to the testing head main body. The moving seat is movably connected to the first supporting arm. The lifting piece is liftably connected to the moving seat. The clamping groove is used for clamping the cylindrical shaft. The lifting piece is lifted relative to the moving seat under the drive of the guide piece. The testing part contacts the cylindrical shaft and swings relative to the testing head main body under the drive of the cylindrical shaft until the testing part is in the zero position state relative to the testing head main body. Then, the testing part is fixedly connected to the testing head main body. The adjustment of any height is realized by lifting, and the thickness is not limited, the testing precision of the testing device of the testing head is improved. Meanwhile, the moving seat is moved to adapt to testing heads with different lengths, and the universality of the testing device of the testing head is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of testing devices for test heads, and more particularly to a testing device for a test head. Background Technology

[0002] With the development of technology, the probe, as a key inspection component in the field of machining and inspection, has a significant impact on the workpiece inspection results due to its accuracy. In existing technologies, the current testing device for the probe includes a support base and a test head, with the test head connected to the support base. The test head includes a test head body and a testing section; the test head body is mounted on the support base; the testing section is oscillatingly connected to the test head body and adjusted using shims. However, the shims have a certain thickness, which cannot guarantee that the testing section is in a zero-position state, resulting in poor testing accuracy of the existing probe testing device. Utility Model Content

[0003] The purpose of this utility model is to provide a testing device for a test head. An L-shaped support base has a first arm and a second arm, with the second arm positioned above the first arm. The second arm has a mounting portion. The test head includes a test head body and a test portion. The test head body is mounted on the mounting portion and arranged horizontally. The test portion is swayably connected to the test head body and sways vertically. A movable base is movably connected to the first arm and moves along the length of the first arm. A lifting member is swayably connected to the movable base and moves vertically. The lifting member adjusts its position forward and backward as the movable base moves. The lifting member has a clamping groove for clamping a cylindrical shaft. The cylindrical shaft is arranged horizontally and can contact the testing part. The guide is set between the moving base and the lifting part. The lifting part moves up and down relative to the moving base under the drive of the guide. As the lifting part rises, the cylindrical shaft gradually approaches the testing part. The testing part contacts the cylindrical shaft and swings relative to the testing head body under the drive of the cylindrical shaft until the testing part is at zero position relative to the testing head body. Then, the testing part is fixedly connected to the testing head body. The height can be adjusted at any height without thickness limitation, which improves the testing accuracy of the testing head detection device. At the same time, the movement of the moving base can adapt to testing heads of different lengths, which improves the versatility of the testing head detection device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a detection device for a test head, comprising: The L-shaped support base is provided with a first arm and a second arm, the second arm being disposed on the upper side of the first arm; the second arm is provided with a mounting part. A test head includes a test head body and a test section; the test head body is mounted on the mounting section and arranged in a horizontal direction; the test section is oscillatingly connected to the test head body and oscillates in a vertical direction. A movable seat is movably connected to the first support arm and moves along the length of the first support arm; A lifting component is vertically connected to the movable base and moves up and down in the vertical direction; the lifting component adjusts its front and rear positions as the movable base moves; the lifting component is provided with a clamping groove for clamping a cylindrical shaft; the cylindrical shaft is arranged horizontally and can contact the testing part; A guide member is disposed between the movable seat and the lifting member, and the lifting member moves up and down relative to the movable seat under the drive of the guide member; As the lifting component rises, the cylindrical shaft gradually approaches the testing part. The testing part contacts the cylindrical shaft and swings relative to the testing head body under the drive of the cylindrical shaft until the testing part is at a zero position relative to the testing head body. Then, the testing part is fixedly connected to the testing head body.

[0005] Optionally, the movable seat is provided with a first support portion, which is provided with a linear bearing; The lifting component includes a lifting body and a screw section; The lifting body is provided with a clamping groove, which is arranged horizontally; a cylindrical shaft passes through the clamping groove horizontally and is stationary relative to the lifting body; the guide member is connected to the lifting body, is arranged vertically, and is inserted into the linear bearing. The screw section is rotatably connected to the lifting body and rotates along the axis of the screw section; the lower end of the screw section is screwed to the first support section, and the lifting body rises and falls as the screw section rotates.

[0006] Optionally, the movable seat includes a movable body and a second support part. The second support part is provided with a first threaded hole, which is disposed on one side of the linear bearing. The first threaded hole and the linear bearing are disposed at different positions of the second support part. The second support is connected to the movable body, which is movably connected to the first support arm.

[0007] Optionally, the movable base further includes a support rod connected to the movable body and supporting the second support portion; The second support portion is inserted into the support rod and connected to any position of the support rod; the second support portion is provided with a second threaded hole, which is arranged horizontally relative to the support rod and exposes the peripheral sidewall of the support rod; The second threaded hole is used for a screw to be threaded into the second threaded hole and to contact the support rod to maintain the second support portion in a stationary state relative to the support rod.

[0008] Optionally, the first arm is provided with an elongated hole; The movable body is located on the upper side of the first support arm and is movably connected to the elongated hole. The movable body is fixedly connected to any position of the elongated hole to adjust the position of the movable body relative to the first support arm.

[0009] Optionally, the first arm is welded to the second arm; The L-shaped support base is also provided with a reinforcing part, which has a triangular structure; the first side wall of the reinforcing part is connected to the first support arm, the second side wall of the reinforcing part is connected to the second support arm, the reinforcing part is located between the first support arm and the second support arm, and reinforces the connection between the first support arm and the second support arm.

[0010] Optionally, the reinforcing part is arranged relative to the midpoint of the second arm and connected to the midpoint of the first arm and the midpoint of the second arm.

[0011] Optionally, the sidewall of the test head body away from the test section is attached to the surface of the second arm, and the test head body is connected to the second arm by screws; The second arm has multiple through holes arranged in a square array for screws to pass through. The test head body is connected to the second arm by multiple screws and is kept horizontal.

[0012] Optionally, the test section is located at one end of the test head body away from the second arm and is hinged to the test head body.

[0013] Optionally, the test head body has a through hole, the test part is located in the through hole, and is connected to the test head body by screws and nuts.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a testing device for a test head. An L-shaped support base has a first arm and a second arm, with the second arm positioned above the first arm. The second arm has a mounting portion. The test head includes a test head body and a test portion. The test head body is mounted on the mounting portion and arranged horizontally. The test portion is swayably connected to the test head body and sways vertically. A movable base is movably connected to the first arm and moves along the length of the first arm. A lifting member is swayably connected to the movable base and moves vertically. The lifting member adjusts its position forward and backward as the movable base moves. The lifting member has a clamping groove for clamping a cylindrical shaft. The shaft is arranged horizontally and can contact the test part; the guide is set between the moving base and the lifting part, and the lifting part moves up and down relative to the moving base under the drive of the guide; the cylindrical shaft gradually approaches the test part as the lifting part rises, the test part contacts the cylindrical shaft, and swings relative to the test head body under the drive of the cylindrical shaft until the test part is at zero position relative to the test head body. Then, the test part is fixedly connected to the test head body. The height can be adjusted at any height through lifting and lowering without thickness limitation, which improves the testing accuracy of the test head detection device. At the same time, the movement of the moving base can adapt to test heads of different lengths, which improves the versatility of the test head detection device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0016] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0017] Figure 1 A schematic diagram of a detection device for a test head according to an embodiment of this application is shown.

[0018] Figure 2 A side view of a detection device for a test head according to an embodiment of this application is shown.

[0019] Figure 3 A top view of a detection device for a test head according to an embodiment of this application is shown.

[0020] Figure 4 A front view of a detection device for a test head according to an embodiment of this application is shown.

[0021] Figure 5A cross-sectional view of an L-shaped support for a testing device of a test head according to an embodiment of this application is shown.

[0022] Figure label: 100. Detection device for the test head; 10. L-shaped support base; 11. First support arm; 11a. Elongated hole; 12. Second support arm; 12a. Through hole; 121. Mounting part; 13. Reinforcing part; 20. Test head; 21. Test head body; 21a. Through hole; 22. Test section; 30. Movable seat; 31. First support part; 311. Linear bearing; 32. Movable main body; 33. Second support part; 33a. First threaded hole; 33b. Second threaded hole; 34. Support rod; 40. Lifting component; 40a. Clamping groove; 41. Lifting main body; 42. Screw section; 50. Guide components. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] Please refer to the attached document. Figures 1-5 This application provides a detection device 100 for a test head 20, which is used to detect the test head 20.

[0025] Please refer to the attached document. Figures 1-5In this embodiment, the detection device 100 of the test head 20 includes an L-shaped support base 10, a test head 20, a movable base 30, a lifting member 40, and a guide member 50. The L-shaped support base 10 is provided with a first arm 11 and a second arm 12, with the second arm 12 disposed on the upper side of the first arm 11. The second arm 12 is provided with a mounting portion 121. The test head 20 includes a test head body 21 and a test portion 22. The test head body 21 is mounted on the mounting portion 121 and arranged in a horizontal direction. The test portion 22 is swayably connected to the test head body 21 and sways in the vertical direction. The movable base 30 is movably connected to the first arm 11 and moves along the length of the first arm 11. The lifting member 40 is swayably connected to the movable base 30 and moves up and down in the vertical direction. The lifting member 40 adjusts its front and rear positions as the movable base 30 moves. The lifting member 40 is provided with a clamp. A holding groove 40a is used to hold a cylindrical shaft. The cylindrical shaft is arranged horizontally and can contact the test part 22. A guide member 50 is disposed between the movable seat 30 and the lifting member 40. The lifting member 40 is driven by the guide member 50 to rise and fall relative to the movable seat 30. As the lifting member 40 rises, the cylindrical shaft gradually approaches the test part 22. The test part 22 contacts the cylindrical shaft and swings relative to the test head body 21 under the drive of the cylindrical shaft until the test part 22 is in a zero position relative to the test head body 21. Then, the test part 22 is fixedly connected to the test head body 21. The height can be adjusted at any height through the lifting and falling, without any thickness limitation, which improves the testing accuracy of the test head 20 detection device 100. At the same time, the movement of the movable seat 30 can adapt to test heads 20 of different lengths, which improves the versatility of the test head 20 detection device 100.

[0026] Please refer to the attached document. Figures 1-5 In this embodiment, the L-shaped support base 10 serves as a support component of the detection device 100 of the test head 20. The L-shaped support base 10 supports the test head 20, the movable base 30, the lifting component 40, and the guide component 50. The L-shaped support base 10 is provided with a first arm 11 and a second arm 12. The second arm 12 is disposed on the upper side of the first arm 11. The first arm 11 is arranged in a horizontal direction, and the second arm 12 is arranged in a vertical direction so that the first arm 11 and the second arm 12 are L-shaped. The second arm 12 is provided with a mounting part 121.

[0027] The test head 20 includes a test head body 21 and a test section 22. The test head body 21 is mounted on the mounting section 121 and arranged in a horizontal direction so that the test head 20 can be connected to the second arm 12 through the cooperation of the test head body 21 and the mounting section 121. The test section 22 is swayably connected to the test head body 21 and swings in the vertical direction so as to adjust the vertical position of the test section 22 relative to the test head body 21.

[0028] The movable seat 30 is movably connected to the first support arm 11 and moves along the length of the first support arm 11 to adjust the position of the movable seat 30 relative to the first support arm 11.

[0029] The lifting member 40 is vertically connected to the movable seat 30 and moves up and down in the vertical direction to adjust the height position of the lifting member 40 relative to the movable seat 30; the lifting member 40 adjusts its front and back position as the movable seat 30 moves; the lifting member 40 is provided with a clamping groove 40a for clamping a cylindrical shaft; the cylindrical shaft is arranged horizontally and can contact the test part 22.

[0030] The guide member 50 is disposed between the movable seat 30 and the lifting member 40. The lifting member 40 is lifted and lowered relative to the movable seat 30 under the drive of the guide member 50, which ensures the lifting stability of the lifting member 40 and avoids the lifting member 40 from deviating during the lifting process.

[0031] As the lifting member 40 rises, the cylindrical shaft gradually approaches the testing section 22. The testing section 22 contacts the cylindrical shaft and swings relative to the testing head body 21 under the drive of the cylindrical shaft until the testing section 22 is at zero position relative to the testing head body 21. Then, the testing section 22 is fixedly connected to the testing head body 21. The height can be adjusted at any height through lifting and lowering without thickness limitation, which improves the testing accuracy of the testing device 100 of the testing head 20. At the same time, the movement of the movable seat 30 adapts to testing heads 20 of different lengths, which improves the versatility of the testing device 100 of the testing head 20.

[0032] Please refer to the attached document. Figures 1-4 In this embodiment, the movable seat 30 is provided with a first support portion 31, which is provided with a linear bearing 311; the lifting member 40 includes a lifting body 41 and a screw portion 42; the lifting body 41 is provided with a clamping groove 40a, which is arranged along the horizontal direction; the cylindrical shaft passes through the clamping groove 40a along the horizontal direction and is stationary relative to the lifting body 41, ensuring the positional accuracy of the cylindrical shaft relative to the lifting body 41 and avoiding positional deviation of the cylindrical shaft; the guide member 50 is connected to the lifting body 41, the guide member 50 is arranged along the vertical direction and inserted into the linear bearing 311; so that the guide member 50 can be raised and lowered under the action of the linear bearing 311, thereby facilitating the lifting body 41 to be raised and lowered under the guidance of the guide member 50.

[0033] The screw part 42 is rotatably connected to the lifting body 41 and rotates along the axis of the screw part 42 to adjust the position of the screw part 42 relative to the lifting body 41. The lower end of the screw part 42 is screwed to the first support part 31. The lifting body 41 rises and falls with the rotation of the screw part 42, so that the lifting effect of the lifting component 40 can be achieved by rotating the screw part 42 under the action of external force. This facilitates the adjustment of the cylindrical shaft to any height without thickness limitation, and improves the testing accuracy of the detection device 100 of the test head 20.

[0034] Please refer to the attached document. Figures 1-4 In this embodiment, the movable seat 30 includes a movable body 32 and a second support part 33. The second support part 33 is provided with a first threaded hole 33a, which is disposed on one side of the linear bearing 311. The first threaded hole 33a and the linear bearing 311 are disposed at different positions of the second support part 33. The second support part 33 is connected to the movable body 32, and the movable body 32 is movably connected to the first support arm 11 so as to adjust the position of the movable body 32 relative to the first support arm 11, thereby facilitating the movable seat 30 to move relative to the first support arm 11 through the movable body 32.

[0035] Please refer to the attached document. Figures 1-4 In this embodiment, the movable base 30 further includes a support rod 34, which is arranged vertically and connected to the movable body 32, supporting the second support portion 33. This ensures the height distance between the second support portion 33 and the movable body 32. The second support portion 33 is inserted into the support rod 34 and connected to any position of the support rod 34 to facilitate adjustment of the height position of the second support portion 33 relative to the support rod 34. The second support portion 33 is provided with a second threaded hole 33b, which is arranged horizontally relative to the support rod 34 and exposes the peripheral sidewall of the support rod 34. The second threaded hole 33b is used for screws to pass through, and the screws are screwed into the second threaded hole 33b and can contact the support rod 34 to maintain the static state of the second support portion 33 relative to the support rod 34, so that the second support portion 33 can be locked with the support rod 34 by the screws to prevent accidental movement of the second support portion 33.

[0036] Please refer to the attached document. Figures 1-5 In this embodiment, the first support arm 11 is provided with an elongated hole 11a; the movable body 32 is located on the upper side of the first support arm 11 and is movably connected to the elongated hole 11a. The movable body 32 is fixedly connected to any position of the elongated hole 11a to adjust the position of the movable body 32 relative to the first support arm 11, so that the movable body 32 can move relative to the first support arm 11 through the elongated hole 11a and the screw, thereby achieving the effect of moving the movable seat 30 relative to the first support arm 11.

[0037] Please refer to the attached document. Figures 1-5 In this embodiment, the first arm 11 is welded to the second arm 12, ensuring the stability of the connection between the first arm 11 and the second arm 12. The L-shaped support 10 is also provided with a reinforcing part 13, which has a triangular structure. The first sidewall of the reinforcing part 13 is connected to the first arm 11, and the second sidewall of the reinforcing part 13 is connected to the second arm 12. The reinforcing part 13 is located between the first arm 11 and the second arm 12, and reinforces the connection between the first arm 11 and the second arm 12, thereby improving the connection strength between the first arm 11 and the second arm 12 and ensuring the support effect of the L-shaped support 10.

[0038] Please refer to the attached document. Figures 1-5 In this embodiment, the reinforcement part 13 is arranged relative to the midpoint of the second support arm 12 and is connected to the midpoint of the first support arm 11 and the midpoint of the second support arm 12 to achieve symmetrical force transmission, enhance the rigidity and stability of the L-shaped support seat 10, and optimize load distribution.

[0039] Please refer to the attached document. Figures 1-5 In this embodiment, the sidewall of the test head body 21 away from the test section 22 is attached to the surface of the second arm 12, and the test head body 21 is connected to the second arm 12 by screws; so that the test head body 21 can be detachably connected to the second arm 12, thereby enabling the test head 20 to be connected to or detached from the second arm 12.

[0040] The second arm 12 is provided with multiple through holes 12a, which are arranged in a square array and are used for screws to pass through. The test head body 21 is connected to the second arm 12 by multiple screws and is kept in a horizontal state. By arranging multiple through holes 12a, the connection strength between the test head body 21 and the second arm 12 is increased, and the connection between the test head body 21 and the second arm 12 is prevented from being lost due to the failure of a screw.

[0041] Please refer to the attached document. Figures 1-4 In this embodiment of the application, the test part 22 is located at the end of the test head body 21 away from the second arm 12 and is hinged to the test head body 21 so that the test part 22 can swing up and down relative to the test head body 21 by means of hinge.

[0042] Please refer to the attached document. Figures 1-4 In this embodiment of the application, the test head body 21 is provided with a through hole 21a, the test part 22 is located in the through hole 21a and is connected to the test head body 21 by screws and nuts, so that the test part 22 is in a zero position relative to the test head body 21 and is locked by the screws and nuts, thus avoiding accidental displacement of the test part 22 relative to the test head body 21.

[0043] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a detection device 100 for a test head 20. An L-shaped support base 10 is provided with a first arm 11 and a second arm 12, the second arm 12 being disposed above the first arm 11. The second arm 12 is provided with a mounting portion 121. The test head 20 includes a test head body 21 and a test portion 22. The test head body 21 is mounted on the mounting portion 121 and arranged horizontally. The test portion 22 is swayably connected to the test head body 21 and sways vertically. A movable base 30 is movably connected to the first arm 11 and moves along the length of the first arm 11. A lifting member 40 is swayably connected to the movable base 30 and moves vertically. The lifting member 40 adjusts its front-to-back position as the movable base 30 moves. The lifting member 40 is provided with a clamping groove 40a for clamping. A cylindrical shaft is arranged horizontally and can contact the test section 22. A guide 50 is disposed between the movable seat 30 and the lifting member 40. The lifting member 40 is driven by the guide 50 to rise and fall relative to the movable seat 30. As the lifting member 40 rises, the cylindrical shaft gradually approaches the test section 22. The test section 22 contacts the cylindrical shaft and swings relative to the test head body 21 under the drive of the cylindrical shaft until the test section 22 is in a zero position relative to the test head body 21. Then, the test section 22 is fixedly connected to the test head body 21. The height can be adjusted at any height through lifting and falling without thickness limitation, which improves the testing accuracy of the test head 20 detection device 100. At the same time, the movement of the movable seat 30 can adapt to test heads 20 of different lengths, which improves the versatility of the test head 20 detection device 100.

[0044] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0045] In the description of this application, the terms "first" and "second" are used 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, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0046] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A detection device for a test head, characterized in that, include: The L-shaped support base is provided with a first arm and a second arm, with the second arm located on the upper side of the first arm; The second arm is equipped with a mounting section; A test head includes a test head body and a test section; the test head body is mounted on the mounting section and arranged in a horizontal direction; the test section is oscillatingly connected to the test head body and oscillates in a vertical direction. A movable seat is movably connected to the first support arm and moves along the length of the first support arm; A lifting component is vertically connected to the movable base and moves up and down in the vertical direction; the lifting component adjusts its front and rear positions as the movable base moves; the lifting component is provided with a clamping groove for clamping a cylindrical shaft; the cylindrical shaft is arranged horizontally and can contact the testing part; A guide member is disposed between the movable seat and the lifting member, and the lifting member moves up and down relative to the movable seat under the drive of the guide member; As the lifting component rises, the cylindrical shaft gradually approaches the testing part. The testing part contacts the cylindrical shaft and swings relative to the testing head body under the drive of the cylindrical shaft until the testing part is at a zero position relative to the testing head body. Then, the testing part is fixedly connected to the testing head body.

2. The detection device for the test head according to claim 1, characterized in that, The movable seat is provided with a first support part, and the first support part is provided with a linear bearing; The lifting component includes a lifting body and a screw section; The lifting body is provided with a clamping groove, which is arranged horizontally; a cylindrical shaft passes through the clamping groove horizontally and is stationary relative to the lifting body; the guide member is connected to the lifting body, is arranged vertically, and is inserted into the linear bearing. The screw section is rotatably connected to the lifting body and rotates along the axis of the screw section; the lower end of the screw section is screwed to the first support section, and the lifting body rises and falls as the screw section rotates.

3. The detection device for the test head according to claim 2, characterized in that, The movable seat includes a movable body and a second support part. The second support part is provided with a first threaded hole, which is located on one side of the linear bearing. The first threaded hole and the linear bearing are located at different positions on the second support part. The second support is connected to the movable body, which is movably connected to the first support arm.

4. The detection device for the test head according to claim 3, characterized in that, The movable base also includes a support rod connected to the movable body and supporting the second support portion; The second support portion is inserted into the support rod and connected to any position of the support rod; the second support portion is provided with a second threaded hole, which is arranged horizontally relative to the support rod and exposes the peripheral sidewall of the support rod; The second threaded hole is used for a screw to be threaded into the second threaded hole and to contact the support rod to maintain the second support portion in a stationary state relative to the support rod.

5. The detection device for the test head according to claim 3, characterized in that, The first arm is provided with an elongated hole; The movable body is located on the upper side of the first support arm and is movably connected to the elongated hole. The movable body is fixedly connected to any position of the elongated hole to adjust the position of the movable body relative to the first support arm.

6. The detection device for the test head according to claim 1, characterized in that, The first arm is welded to the second arm; The L-shaped support base is also provided with a reinforcing part, which has a triangular structure; the first side wall of the reinforcing part is connected to the first support arm, the second side wall of the reinforcing part is connected to the second support arm, the reinforcing part is located between the first support arm and the second support arm, and reinforces the connection between the first support arm and the second support arm.

7. The detection device for the test head according to claim 6, characterized in that, The reinforcing part is arranged relative to the midpoint of the second arm and is connected to the midpoint of the first arm and the midpoint of the second arm.

8. The detection device for the test head according to claim 1, characterized in that, The sidewall of the test head body away from the test section is attached to the surface of the second arm, and the test head body is connected to the second arm by screws. The second arm has multiple through holes arranged in a square array for screws to pass through. The test head body is connected to the second arm by multiple screws and is kept horizontal.

9. The detection device for the test head according to claim 8, characterized in that, The test section is located at the end of the test head body away from the second arm and is hinged to the test head body.

10. The detection device for the test head according to claim 9, characterized in that, The test head body has a through hole, the test part is located in the through hole, and is connected to the test head body by screws and nuts.

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