Positioning fixture
By using a positioning fixture between the vehicle tailgate and the vehicle body, and utilizing the cooperation of the positioning sleeve and the positioning hole, the precise positioning of the vehicle tailgate and the vehicle body is achieved. This solves the connection complexity and accuracy problems caused by the frequent movement of the robotic arm, and improves assembly efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BYD CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, the robotic arm needs to move frequently when connecting the vehicle tailgate and the body, resulting in a large robotic arm with a complex structure and difficulty in ensuring connection accuracy. Manual adjustment is required, which is time-consuming and labor-intensive.
By using positioning fixtures, positioning holes are set on stationary parts, and positioning joints and positioning sleeves are set on moving parts. The positioning sleeves cooperate with the positioning holes to ensure that the axes of the positioning columns coincide, thereby achieving precise positioning of stationary and moving parts and avoiding manual adjustment.
It improves the assembly efficiency and precision of connecting the vehicle tailgate to the body, reduces the need for manual adjustments, and simplifies the operation process of the robotic arm.
Smart Images

Figure CN224488825U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of vehicle technology, and more specifically, to a positioning tooling. Background Technology
[0002] In related technologies, a robotic arm is usually used to transfer the vehicle tailgate to complete the connection between the vehicle tailgate and the vehicle body. However, since there is no positioning fixture between the vehicle tailgate and the vehicle body, the robotic arm needs to frequently move the vehicle tailgate in multiple directions during the connection process. This results in the robotic arm being bulky, having a complex structure, and being unable to guarantee the connection accuracy. As a result, manual adjustment is still required after the connection between the vehicle tailgate and the vehicle body is completed, which is time-consuming and labor-intensive. Utility Model Content
[0003] The purpose of this disclosure is to provide a positioning fixture that can position a moving part when a stationary part and a moving part are connected, thus avoiding the need for workers to readjust the position of the moving part after the stationary part and the moving part are assembled.
[0004] To achieve the above objectives, this disclosure provides a positioning fixture for positioning a moving part during the assembly of a moving part to a stationary part. The stationary part has a positioning hole, and the moving part has a positioning connector. The positioning connector includes a positioning post, which engages with the positioning hole. The positioning fixture includes:
[0005] A positioning sleeve is used to detachably fit onto the positioning post to have an installed state and a disassembled state. The outer diameter of the positioning sleeve is the same as the diameter of the positioning hole. In the installed state, the sleeve is fitted over the positioning post and inserted into the positioning hole so that the axis of the positioning post coincides with the axis of the positioning hole. In the disassembled state, the positioning sleeve is detached from the positioning joint so that the positioning post can be locked in the positioning hole by fasteners.
[0006] Optionally, the positioning sleeve includes a mating part and a connecting part. The mating part is configured to be inserted into the positioning hole along with the positioning post, and the connecting part is used to connect the positioning post to the positioning sleeve.
[0007] Optionally, the mating part is cylindrical, the connecting part is a threaded hole located at the center of the mating part and passing through the mating part, and the outer wall of the positioning post is provided with external threads so that the threaded hole can be fixedly connected to the positioning joint through the external threads.
[0008] Optionally, the diameter of the mating part is 13-14 mm, the diameter of the threaded hole is 7.5-8.5 mm, and the diameter of the positioning hole is 13-14 mm.
[0009] Optionally, the positioning sleeve further includes a fastening part located at the end of the positioning sleeve, which is used to cooperate with an installation tool to fix the positioning sleeve to the positioning connector.
[0010] Optionally, the stationary part is further provided with a mating hole, and the moving part is further provided with a mating connector. The mating connector can move synchronously with the positioning connector, be inserted into the mating hole and locked, and is used to facilitate the disassembly of the positioning sleeve and the installation of the fastener.
[0011] Optionally, the positioning sleeve is configured to adjust its position relative to the positioning post so that the positioning post can move in the positioning hole, and the mating joint can move in the mating hole to adjust the position of the moving member relative to the stationary member.
[0012] Optionally, the positioning hole is a round hole, the mating hole is an oblong hole, and the center of the positioning hole is collinear with the extension direction of the mating hole.
[0013] Optionally, the fastener includes a snap-fit portion, the outer diameter of which is larger than the diameter of the positioning hole, so that the positioning post can be locked to the positioning hole by the fastener.
[0014] Optionally, the moving part is the vehicle tailgate, the stationary part is the vehicle body, the vehicle body is provided with a tailgate mounting position, a plurality of positioning holes are provided and distributed at the tailgate mounting position, a plurality of positioning connectors are provided and distributed at the vehicle tailgate, and a plurality of positioning sleeves are provided and detachably connected to the positioning connectors on the vehicle tailgate, and are configured for positioning between the vehicle tailgate and the vehicle body.
[0015] Optionally, the vehicle tailgate is provided with a plurality of connectors, the connectors being detachably connected to the vehicle tailgate, and the positioning connector being located on the connectors.
[0016] Optionally, the connector is one of a hinge, a gooseneck hinge, or a linkage hinge.
[0017] The advantages of this disclosure through the above technical solution are as follows: The positioning fixture of this disclosure sets a positioning sleeve with an outer diameter that matches the diameter of the positioning hole, so that after the positioning sleeve is inserted into the positioning hole on the stationary part along with the positioning pin, the positioning pin and the positioning hole are locked, thus completing the positioning between the stationary part and the moving part. Therefore, it is not necessary for the operator to readjust the positional relationship between the positioning joint and the positioning hole before connecting the positioning joint and the positioning hole with fasteners, thereby improving the assembly efficiency between the stationary part and the moving part.
[0018] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description
[0019] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of the positioning sleeve in the positioning fixture provided in the exemplary embodiments of this disclosure;
[0021] Figure 2 This is a cross-sectional view of the positioning fixture provided in the exemplary embodiment of this disclosure, in which the positioning sleeve is in the installed state and the positioning joint is locked to the stationary part;
[0022] Figure 3 This is a cross-sectional view of the positioning fixture provided in the exemplary embodiment of this disclosure, in which the positioning sleeve is in the installed state and the positioning joint and the stationary part can move relative to each other;
[0023] Figure 4 This is a cross-sectional view of the positioning sleeve in the disassembled state of the positioning fixture provided in the exemplary embodiment of this disclosure;
[0024] Figure 5 This is a schematic diagram of the structure of the connecting member in the positioning fixture provided in the exemplary embodiments of this disclosure;
[0025] Figure 6 This is a schematic diagram of the positioning hole and mating hole on the stationary part of the positioning fixture provided in the exemplary embodiment of this disclosure.
[0026] Explanation of reference numerals in the attached figures
[0027] 1-Stationary part; 11-Locking hole; 12-Matching hole;
[0028] 2-Moving component; 21-Positioning connector; 211-Positioning pin; 22-Mating connector; 23-Connector; 24-Fastener; 241-Snap-fit part;
[0029] 3-Positioning sleeve; 31-Matching part; 32-Connecting part; 33-Fastening part. Detailed Implementation
[0030] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0031] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "higher," "lower," "top," and "bottom" generally refer to the orientation of the corresponding component or structure in the direction of gravity. "Inner" and "outer" refer to the inner and outer contours of the corresponding component. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same element. The above definitions are for explanation and illustration only and should not be construed as limiting this disclosure.
[0032] This disclosure relates to a positioning fixture capable of positioning the moving part 2 during the assembly of a stationary part 1 and a moving part 2, thereby ensuring the relative positional relationship between the moving part 2 and the stationary part 1 after assembly. See also Figure 1 , Figure 2 and Figure 3 A positioning hole 11 is provided on the stationary part 1, and a positioning connector 21 is provided on the moving part 2. The positioning connector 21 includes a positioning post 211, which can be inserted into the positioning hole 11 and cooperate with the positioning hole 11. The positioning fixture includes a positioning sleeve 3, which is used to detachably fit on the positioning post 211. The outer diameter of the positioning sleeve 3 is consistent with the diameter of the positioning hole 11. For example, the positioning hole 11 can be a round hole, and the cross section of the positioning sleeve 3 is circular, and the outer diameter is consistent with the diameter of the positioning hole 11. The positioning hole 11 can also be a square hole, and the cross section of the positioning sleeve 3 is square, and the outer diameter is consistent with the diameter of the positioning hole 11.
[0033] The positioning sleeve 3 has an installed state and a disassembled state. In the installed state, it is fitted over the positioning post 211 and can be inserted into the positioning hole 11 along with the positioning post 211. Since the outer diameter of the positioning sleeve 3 is the same as the diameter of the positioning hole 11, after the positioning post 211 is inserted into the positioning hole 211 through the positioning sleeve 3, the axis of the positioning post 211 coincides with the axis of the positioning hole 11, ensuring that the positioning post 211 is in the correct installation position. This avoids the need for workers to readjust the positional relationship between the positioning joint 21 and the positioning hole 11 before connecting the positioning joint 21 and the positioning hole 11 using the fastener 24. When the positioning sleeve 3 is in the disassembled state, it is completely detached from the positioning post 211. At this time, the positioning joint 21 can be completely locked to the positioning hole 11 using the fastener 24 to complete the assembly between the moving part 2 and the stationary part 1.
[0034] In related technologies, when assembling stationary part 1 and moving part 2, it is usually necessary to move moving part 2 in a small range multiple times. In order to reduce the number of times moving part 2 is moved, the positioning holes 11 on stationary part 1 that are used to mate with moving part 2 are mostly holes with a large diameter, so that the positioning connector 21 on moving part 2 can be easily disassembled into the positioning hole 11. However, because the diameter of the positioning hole 11 is large, after the assembly is completed, the operator needs to manually adjust the position of the positioning connector 21 in the positioning hole 11 before fixing it, which leads to low assembly efficiency.
[0035] The positioning fixture disclosed herein can be used in assembly where the positioning reference between the stationary part 1 and the moving part 2 is relatively accurate. When the moving part 2 moves, it only needs to move in one direction. At this time, the positioning sleeve 3 is fitted onto the positioning post 211 of the moving part 2. When the positioning sleeve 3 is inserted into the positioning hole 11 along with the positioning post 211, the locking between the positioning connector 21 and the positioning hole 11 can be completed. Therefore, the operator does not need to readjust the positional relationship between the positioning connector 21 and the positioning hole 11 before connecting the positioning connector 21 and the positioning hole 11 with the fastener 24, thus improving the assembly efficiency between the stationary part 1 and the moving part 2.
[0036] In one embodiment of this disclosure, see Figure 1 and Figure 2 The positioning sleeve 3 includes a mating part 31 and a connecting part 32. The mating part 31 can be inserted into the positioning hole 21 along with the positioning connector 21 to lock the positioning connector 21 with the positioning hole 11. The connecting part 32 is used to connect the positioning sleeve 3 to the positioning connector 21 so that the positioning sleeve 3 can move relative to the positioning connector 21. Of course, in other embodiments, the positioning sleeve 3 can also have other structures, which can be determined according to the actual situation. For example, it can be determined according to the structure of the positioning connector 21. This disclosure does not limit it in this way.
[0037] In one embodiment of this disclosure, see Figure 1 and Figure 2 The mating part 31 is cylindrical and can be inserted into the positioning hole 11 to contact the inner wall of the positioning hole 11, thereby locking the positioning connector 21 in the positioning hole 11. The connecting part 32 is circular and passes through the threaded hole of the mating part 31. The outer wall of the positioning connector 21 is provided with external threads. When connecting, it is only necessary to align the threaded hole with the positioning connector 21, and then rotate the positioning sleeve 3 to make the external threads engage with the threaded hole, thereby completing the fixed connection between the positioning hole 11 and the positioning connector 21. Of course, in other embodiments, the mating part 31 and the connecting part 32 can also have other structures, which can be determined according to the actual situation. For example, they can be determined according to the structure of the positioning connector 21. This disclosure does not limit this.
[0038] In one embodiment of this disclosure, the diameter of the mating part 31 is 13-14 mm, the diameter of the threaded hole is 7.5-8.5 mm, and the diameter of the positioning hole is 13-14 mm. This configuration, with its varying diameters of the mating part 31, positioning hole 11, and threaded hole, can accommodate a wide range of stationary components 1 and moving components 2, and allows the positioning connector 21 to move a suitable distance within the positioning hole 11, ensuring that the mating connector 22 can be inserted into the mating hole 12. Of course, in other embodiments, the diameters of the mating part 31, positioning hole 11, and threaded hole can be different, depending on the specific circumstances, and this disclosure does not impose any limitations on this.
[0039] In one embodiment of this disclosure, see Figure 1 and Figure 2 The positioning sleeve 3 is also provided with a fastening part 33, which is located at the end of the positioning sleeve 3. By providing the fastening part 33, the positioning sleeve 3 can cooperate with the installation tool to fix the positioning sleeve 3 to the positioning connector 21. For example, the fastening part 33 can be hexagonal, and the installation tool can be a wrench or other automatic wrench. The hexagonal fastening part 33 can cooperate with the wrench to fix the positioning sleeve 3 to the positioning connector 21 by rotation or other means.
[0040] In one embodiment of this disclosure, see Figure 2 and Figure 6 The stationary component 1 is provided with a mating hole 12, and the moving component 2 is provided with a mating connector 22. The mating connector 22 can move synchronously with the positioning connector 21. When the positioning connector 21 is inserted into the positioning hole 11, the mating connector 22 is also inserted into the mating hole 12 and locked, which can facilitate the disassembly of the positioning sleeve 3 and the installation of the fastener 24. After the relative position between the positioning connector 21 and the positioning hole 11 is determined by the positioning sleeve 3, the position between the mating connector 22 and the mating hole 12 will also be determined and locked. At this time, the fastener 24 can be used to fix the mating connector 22 and the mating hole 12 to ensure that the relative position between the positioning connector 21 and the positioning hole 11 will not change after the positioning sleeve 3 is removed from the positioning connector 2, which facilitates the installation of the positioning 21 and the positioning hole 11 by the fastener 24.
[0041] Furthermore, by setting the mating hole 12 and the mating connector 22, the positioning hole 11 and the positioning connector 21 can assist in positioning the moving part 2 and the stationary part 1 during the assembly of the moving part 2 to the stationary part 1, so that the positional relationship between the stationary part 1 and the moving part 2 can be more accurate. In addition, the mating connector 22 can also improve the stability of the connection between the stationary part 1 and the moving part 2, and avoid the relative movement of the stationary part 1 and the moving part 2 after the connection is completed due to only setting the positioning hole 11 and the positioning connector 21.
[0042] In one embodiment of this disclosure, see Figure 2 and Figure 6 The positioning sleeve 3 can move relative to the positioning pin 211, allowing it to disengage from the positioning hole 11. Once disengaged, the positioning pin 211 can move within the positioning hole 11, and the mating joint 22 can move within the mating hole 12, thus changing the relative position between the moving part 2 and the stationary part 1. Specifically, when the moving part 2 and the stationary part 1 are assembled, but a small deviation occurs in their relative position due to assembly issues, the position of the positioning sleeve 3 relative to the positioning pin 211 can be adjusted. This allows the positioning sleeve 3 to move relative to the positioning pin 211 until it disengages from the positioning hole 11. After disengaging, the positioning pin 211 can move within the positioning hole 11, and the mating joint 22 can also move within the mating hole 12. This allows for a small range of movement of the moving part 2, adjusting the positional relationship between the moving part 2 and the stationary part 1 to eliminate positional deviations during assembly and ensure assembly quality.
[0043] In one embodiment of this disclosure, see Figure 2 and Figure 6 The positioning hole 11 is a round hole, and the mating hole 12 is an oblong hole. The center of the positioning hole 11 is collinear with the extension direction of the mating hole 12. This arrangement prevents interference between the positioning pin 211 and the positioning hole 11, or between the mating joint 22 and the mating hole 12, when the positioning sleeve 3 disengages from the positioning hole 11 and the positioning pin 211 can move relative to the positioning hole 11, and the mating joint 22 can move within the mating hole 12, thus avoiding synchronous movement and adjusting the positional relationship between the moving part 2 and the stationary part 1. Of course, in other embodiments, the center of the positioning hole 11 and the extension direction of the mating hole 12 can be different, but it is necessary to ensure that the range and direction of movement of the positioning joint 21 within the positioning hole 11, and the range and direction of movement of the mating joint 22 within the mating hole 12, are consistent. The specific positional relationship can be determined based on the structure of the stationary part 1 and the moving part 2, and this disclosure does not impose any limitations on this.
[0044] In one embodiment of this disclosure, see Figure 2 and Figure 5The fastener 24 includes a snap-fit portion 241, the outer diameter of which is larger than the diameter of the positioning hole 11. When the positioning post 211 is connected via the fastener 24, the snap-fit portion 241 ensures that the positioning post 211 will not disengage from the positioning hole 11, and maintains the stability of the connection between the moving part 2 and the stationary part 1. For example, the positioning post 211 may be a threaded post, and the fastener 24 may be a nut. An annular protrusion on the outer wall of the nut forms the snap-fit portion 241. When the threaded post is positioned with the positioning hole 11 via the positioning sleeve 3, the nut can connect the threaded post to the stationary part 1, and the annular protrusion can snap into the stationary part 1, preventing the positioning post 211 from moving relative to the positioning hole 11. Of course, in other embodiments, the fastener 24 may have other structures, depending on the actual situation; this disclosure does not impose any limitations on this.
[0045] In one embodiment of this disclosure, the stationary component 1 is the vehicle body, and the moving component 2 is the vehicle tailgate. The vehicle tailgate can be a metal tailgate or a plastic tailgate, etc. A tailgate mounting position is provided on the vehicle body, and multiple positioning holes 11 are provided at the tailgate mounting position. Multiple positioning connectors 21 are also provided, distributed on the side of the vehicle tailgate facing the tailgate mounting position. Multiple positioning sleeves 3 are also provided, which are detachably connected to the positioning connectors 21 on the vehicle tailgate to position the tailgate during installation with the vehicle body. This avoids the need for workers to adjust the positional relationship between the positioning connectors 21 and the positioning holes 11 after the vehicle tailgate and the vehicle body are assembled. In other embodiments, multiple mating holes 12 are also provided on the vehicle body, and multiple mating connectors 22 can be provided on the vehicle tailgate to assist in the positioning of the positioning holes 11 and the positioning connectors 21 during the assembly process of the vehicle tailgate and the vehicle body, and to enhance the stability of the connection between the vehicle tailgate and the vehicle body.
[0046] In some embodiments, the vehicle tailgate is a plastic tailgate, and there is a positioning reference between the vehicle tailgate mounting position on the vehicle body and the plastic tailgate. When the vehicle tailgate is installed, it only needs to be moved in one direction. At this time, the positioning sleeve 3 is fitted on the positioning post 211 of the vehicle tailgate. When the positioning sleeve 3 is inserted into the positioning hole 11 along with the positioning post 211, the locking between the positioning connector 21 and the positioning hole 11 can be completed. Therefore, the operator does not need to readjust the positional relationship between the positioning connector 21 and the positioning hole 11 before connecting the positioning connector 21 and the positioning hole 11 with the fastener 24, thereby improving the assembly efficiency between the stationary part 1 and the moving part 2.
[0047] Furthermore, in some embodiments where the mating hole 12 and the mating joint 22 are provided, when the moving part 2 and the stationary part 1 are assembled but the relative position between the moving part 2 and the stationary part 1 has a certain small deviation due to assembly reasons, the positioning sleeve 3 can also move relative to the positioning post 211 to unlock the positioning joint 21 from the positioning hole 11, adjust the relative positional relationship between the moving part 2 and the stationary part 1, eliminate the positional deviation generated by the moving part 2 and the stationary part 1 during the assembly process, and improve the assembly quality.
[0048] In one embodiment of this disclosure, see Figure 1 and Figure 5 The vehicle tailgate is provided with multiple connectors 23, which are detachably connected to the vehicle tailgate. A positioning connector 21 is located on the connector 23. In some embodiments, both the mating connector 22 and the connecting connector can be located on the connector 23. By providing connectors 23 that are detachably connected to the vehicle tailgate, on the one hand, if the positioning connector 21 is damaged, only one of the moving parts 23 needs to be replaced to replace the positioning connector 21. On the other hand, since the moving parts 23 are detachably connected to the vehicle tailgate, different types of moving parts 23 can be replaced according to different vehicle tailgate and body types to improve the stability of the connection between the vehicle tailgate and the body. For example, depending on the vehicle tailgate and body type, the moving part 23 can be one of a hinge, a gooseneck hinge, or a linkage hinge, and the positioning connector 21 can be a bolt installed on the hinge. Of course, in other embodiments, the connector 23 can also have other structures, depending on the actual situation, and this disclosure does not limit this.
[0049] The positioning fixture disclosed herein can be used for positioning when assembling stationary part 1 and moving part 2. In use, the positioning sleeve 3 can be first placed on the positioning post 211 on the moving part 2, so that the positioning sleeve 3 can be inserted into the positioning hole 11 on the stationary part 1 along with the positioning post 211. By setting the positioning sleeve 3, the positioning post 211 and the positioning hole 11 can be locked, thus completing the positioning between the stationary part 1 and the moving part 2. Finally, the positioning sleeve 3 can be removed and the positioning post 211 and the positioning hole 11 can be fixedly connected by the fastener 24 to complete the fixed connection between the stationary part 1 and the moving part 2. Moreover, it is not necessary for the operator to readjust the positional relationship between the positioning connector 21 and the positioning hole 11 before connecting by fastener 24.
[0050] Furthermore, when the moving part 2 and the stationary part 1 are assembled, but the relative position between the moving part 2 and the stationary part 1 has a certain small deviation due to assembly reasons, the positioning sleeve 3 can also move relative to the positioning post 211 to unlock the positioning joint 21 and the positioning hole 11, adjust the relative positional relationship between the moving part 2 and the stationary part 1, eliminate the positional deviation of the moving part 2 and the stationary part 1 during the assembly process, and improve the assembly quality.
[0051] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.
[0052] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.
[0053] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. A positioning fixture for positioning a moving part during the assembly of a moving part to a stationary part, characterized in that, The stationary component has a positioning hole, and the moving component has a positioning connector. The positioning connector includes a positioning post, which is used to mate with the positioning hole. The positioning fixture includes: A positioning sleeve is used to detachably fit onto the positioning post to have an installed state and a disassembled state. The outer diameter of the positioning sleeve is the same as the diameter of the positioning hole. In the installed state, the sleeve is fitted over the positioning post and inserted into the positioning hole so that the axis of the positioning post coincides with the axis of the positioning hole. In the disassembled state, the positioning sleeve is detached from the positioning joint so that the positioning post can be locked in the positioning hole by fasteners.
2. The positioning fixture according to claim 1, characterized in that, The positioning sleeve includes a mating part and a connecting part. The mating part is configured to be inserted into the positioning hole along with the positioning post, and the connecting part is used to connect the positioning post and the positioning sleeve.
3. The positioning fixture according to claim 2, characterized in that, The mating part is cylindrical, and the connecting part is a threaded hole located at the center of the mating part and passing through the mating part. The outer wall of the positioning post is provided with external threads so that the threaded hole can be fixedly connected to the positioning connector through the external threads.
4. The positioning fixture according to claim 3, characterized in that, The diameter of the mating part is 13-14mm, the diameter of the threaded hole is 7.5-8.5mm, and the diameter of the positioning hole is 13-14mm.
5. The positioning fixture according to claim 2, characterized in that, The positioning sleeve also includes a fastening part located at the end of the positioning sleeve, which is used to cooperate with the installation tool to fix the positioning sleeve to the positioning connector.
6. The positioning fixture according to claim 1, characterized in that, The stationary component is provided with a mating hole, and the moving component is provided with a mating connector. The mating connector can move synchronously with the positioning connector, be inserted into the mating hole and locked, and is used to facilitate the disassembly of the positioning sleeve and the installation of the fastener.
7. The positioning fixture according to claim 6, characterized in that, The positioning sleeve is configured to adjust its position relative to the positioning post so that the positioning post can move in the positioning hole, and the mating joint can move in the mating hole to adjust the position of the moving member relative to the stationary member.
8. The positioning fixture according to claim 7, characterized in that, The positioning hole is a round hole, and the mating hole is an oblong hole. The center of the positioning hole is collinear with the extension direction of the mating hole.
9. The positioning fixture according to claim 1, characterized in that, The fastener includes a snap-fit portion, the outer diameter of which is larger than the diameter of the positioning hole, so that the positioning pin can be locked to the positioning hole by the fastener.
10. The positioning fixture according to claim 1, characterized in that, The moving part is the vehicle tailgate, the stationary part is the vehicle body, the vehicle body is provided with a tailgate mounting position, multiple positioning holes are provided and distributed at the tailgate mounting position, multiple positioning connectors are provided and distributed at the vehicle tailgate, and multiple positioning sleeves are provided and detachably connected to the positioning connectors on the vehicle tailgate, and are configured for positioning between the vehicle tailgate and the vehicle body.
11. The positioning fixture according to claim 10, characterized in that, The vehicle tailgate is provided with multiple connectors, which are detachably connected to the vehicle tailgate, and the positioning connector is located on the connector.
12. The positioning fixture according to claim 11, characterized in that, The connecting component is one of the following: hinge, gooseneck hinge, or linkage hinge.