Detection tool for automobile shell part

By designing a detachable and sliding inspection base structure, the problem of existing inspection fixtures being incompatible with different vehicle body shells has been solved, enabling efficient and flexible inspection of body shell parts and improving inspection efficiency and versatility.

CN224151582UActive Publication Date: 2026-04-21SHANGHAI DONGLEI PRECISION MOULD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI DONGLEI PRECISION MOULD TECH CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing automotive body parts inspection fixtures cannot flexibly adapt to body parts of different sizes, resulting in low inspection efficiency and failing to meet diverse production inspection needs.

Method used

A testing fixture for automotive body parts was designed, which adopts a detachable base and a sliding seat structure. Through the detachable first testing seat and the sliding second and third testing seats, it can adapt to the testing needs of different specifications of body parts and realize flexible testing of the main positioning hole, the first positioning hole, the second positioning hole, the third positioning hole and the fourth positioning hole.

Benefits of technology

It significantly improves the adaptability of the testing fixture to various sizes of shell parts, increases testing efficiency and versatility, and reduces testing errors and operating time costs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of automobile part detection, in particular to an automobile shell part detection tool, which comprises a base, and is characterized in that the base is detachably provided with a first detection seat for simultaneously detecting the sizes of a main positioning hole, a first positioning hole and a second positioning hole; a second detection seat used for detecting the size of a third positioning hole and a third detection seat used for detecting the size of a fourth positioning hole are further arranged on the base in a sliding mode, and a worker flexibly adjusts the positions of the second detection seat and the third detection seat to meet the detection requirements of the third positioning hole and the fourth positioning hole in shells of different specifications. Meanwhile, by means of the detachable design of the first detection seat on the base, a worker can replace the first detection seat of the corresponding specification according to the specification of the shell part to detect the main positioning hole, the first positioning hole and the second positioning hole, and the adaptability of the detection tool to the shell parts of various specifications is remarkably improved; and the detection efficiency and the universality are improved.
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Description

Technical Field

[0001] This application relates to the field of automotive parts testing technology, and in particular to a testing fixture for automotive body parts. Background Technology

[0002] Reference Figure 1 In the automotive parts manufacturing industry, quality control of automotive parts is of paramount importance. Among these, for the housing part 8, the dimensional accuracy of its positioning holes and other parameters directly affect the overall performance and safety of the vehicle.

[0003] Reference Figure 1 The commonly used housing part 8 includes a main housing part 81 and an edge part 82 integrally formed on the periphery of the main housing part 81. The main housing part 81 is provided with a main positioning hole 811, a first positioning hole 812 and a second positioning hole 813. There are four first positioning holes 812, which are symmetrical in pairs. There are two second positioning holes 813 symmetrically arranged on the left and right. The edge part 82 is provided with a third positioning hole 821 and a fourth positioning hole 822. There are four third positioning holes 821, which are symmetrical in pairs. There are two fourth positioning holes 822 symmetrically arranged on the left and right.

[0004] The common testing method is to set up a testing fixture by simulating the installation scenario of the corresponding position on the vehicle. The staff fixes the part to be tested on the fixture, and then judges whether the part is qualified based on the degree of fit of the part after it is fixed on the fixture.

[0005] However, the existing testing fixture can only test a specific type of housing. Since there are many car models, the housings used by different models vary in size and other aspects. Faced with housings of various sizes, the current testing fixture cannot be flexibly adapted and it is difficult to measure housings of different sizes comprehensively and accurately. This results in low testing efficiency and cannot meet the diverse production testing needs. There are urgent areas for improvement. Utility Model Content

[0006] To adapt to the inspection of housing parts of different specifications, this application provides an inspection fixture for automotive housing parts.

[0007] This application provides a testing fixture for automotive body parts, which adopts the following technical solution:

[0008] A testing fixture for automotive body parts includes a base, on which a first testing seat for simultaneously testing the dimensions of a main positioning hole, a first positioning hole, and a second positioning hole is detachably mounted. The base also has a second testing seat for testing the dimensions of a third positioning hole and a third testing seat for testing the dimensions of a fourth positioning hole that are slidably mounted.

[0009] By adopting the above technical solution and utilizing the detachable design of the first inspection seat on the base, operators can replace the first inspection seat with the corresponding specification according to the specifications of the housing parts to inspect the main positioning hole, the first positioning hole, and the second positioning hole. At the same time, by utilizing the sliding design of the second and third inspection seats, operators can flexibly adjust the positions of the second and third inspection seats to adapt to the inspection requirements of the third and fourth positioning holes on housings of different specifications. This significantly improves the adaptability of the inspection fixture to housing parts of various specifications, solves the problem that traditional fixtures cannot be compatible with the inspection of housings of different vehicle models, and improves inspection efficiency and versatility.

[0010] Preferably, the first detection seat includes a first seat body, a positioning block, a main positioning post for inserting into the main positioning hole, a first positioning post for inserting into the first positioning hole, and a second positioning post for inserting into the second positioning hole. The first seat body is fixed to the base by bolts. The main positioning post, the first positioning post, and the second positioning post are all disposed on the positioning block, and the positioning block is disposed on the first seat body.

[0011] By adopting the above technical solution, the main positioning post and the main positioning hole form an insertion fit, the first positioning post and the first positioning hole form an insertion fit, and the second positioning post and the second positioning hole form an insertion fit, so that the staff can quickly detect the hole size accuracy of the main positioning hole, the first positioning hole and the second positioning hole, making the detection convenient and fast and reducing the detection error; at the same time, the detachable design of the first seat body makes it easy for the staff to install or remove the first detection seat, improving the operating efficiency.

[0012] Preferably, the first base body is provided with an embedding groove, and the positioning block is provided with an embedding block for embedding with the embedding groove. The first base body and the positioning block are connected by bolts.

[0013] By adopting the above technical solution, the embedding block and the embedding slot form an embedding fit, and the first seat body and the embedding block are connected by bolts, which ensures the connection stability between the positioning block and the first seat body during the inspection process; at the same time, this detachable connection method means that when inspecting main shell parts of different specifications, only the positioning block of the appropriate specification needs to be replaced, without replacing the entire first seat body, which improves the operation efficiency.

[0014] Preferably, the base is provided with a support block for assisting the first detection seat in supporting the housing parts. The base is provided with a first sliding groove. The support block is slidably disposed on the first sliding groove. A first bolt is threadedly connected to the support block. The first bolt passes through the support block and abuts against the bottom of the first sliding groove.

[0015] By adopting the above technical solution and utilizing the sliding setting of the support block, the operator can adjust the position of the support block according to the specifications of the housing part and fix it by tightening it with the first bolt. Thus, the support block can assist the first detection seat in supporting and fixing the housing part, providing uniform support force to the housing part and ensuring stability during the detection process.

[0016] Preferably, the second detection seat includes a second seat body and a third positioning post for detecting the third positioning hole. The second seat body is slidably disposed on the base, and the third positioning post is disposed on the second seat body, and the third positioning post and the third positioning hole form an insertion fit.

[0017] By adopting the above technical solution, the second seat is slidably mounted on the base, and the operator can adjust the position of the second seat according to the specifications of the housing parts, so that the third positioning post can accurately insert and test the third positioning hole. The size of the third positioning hole can be quickly determined by the insertion and removal test.

[0018] Preferably, the base has a second sliding groove, the second seat body is slidably disposed on the first sliding groove, and the second seat body is threadedly connected with a second bolt, the second bolt passing through the second seat body and abutting against the bottom of the second sliding groove.

[0019] By adopting the above technical solution, the staff can adjust the position of the second base according to the specifications of the shell parts and fix it by tightening the second bolt. This allows the third positioning post on the second base to perform stable and accurate insertion testing of the first positioning hole, which significantly reduces the time cost of changeover testing and meets the production line's need for rapid testing of multiple shell types.

[0020] Preferably, the third detection seat includes a third seat body and a fourth positioning post for detecting the fourth positioning hole. The third seat body is slidably disposed on the base, and the fourth positioning post is disposed on the third seat body, and the fourth positioning post and the fourth positioning hole form an insertion fit.

[0021] By adopting the above technical solution, the third seat is slidably set on the base, and the staff can adjust the position of the third seat according to the specifications of the housing parts, so that the fourth positioning post can accurately insert and test the fourth positioning hole. The size of the fourth positioning hole can be quickly determined by the insertion and removal test.

[0022] Preferably, the base has a third sliding groove, the third seat is slidably disposed on the third sliding groove, the third seat is threadedly connected to a third bolt, the third bolt passes through the third seat and abuts against the bottom of the third sliding groove.

[0023] By adopting the above technical solution, the staff can adjust the position of the third seat according to the specifications of the housing parts and fix it by the third bolt, so that the fourth positioning post on the third seat can be stably and accurately inserted into the fourth positioning hole, thereby improving the testing efficiency.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By utilizing the detachable design of the first inspection seat on the base, operators can replace the first inspection seat with the corresponding specification according to the specifications of the housing parts to inspect the main positioning hole, the first positioning hole, and the second positioning hole. At the same time, by utilizing the sliding design of the second and third inspection seats, operators can flexibly adjust the positions of the second and third inspection seats to adapt to the inspection requirements of the third and fourth positioning holes on different specifications of housings. This significantly improves the adaptability of the inspection fixture to housing parts of various specifications, solves the problem that traditional fixtures cannot be compatible with the inspection of housings of different vehicle models, and improves inspection efficiency and versatility.

[0026] 2. The embedding block and the embedding slot form an embedding fit, and the first base body and the embedding block are connected by bolts, which ensures the connection stability between the positioning block and the first base body during the inspection process; at the same time, this detachable connection method means that when inspecting main shell parts of different specifications, only the positioning block of the appropriate specification needs to be replaced, without replacing the entire first base body, which improves the operation efficiency.

[0027] 3. The staff adjusts the position of the third seat according to the specifications of the housing parts and fixes it with the third bolt, so that the fourth positioning post on the third seat can be stably and accurately inserted into the fourth positioning hole, thereby improving the testing efficiency. Attached Figure Description

[0028] Figure 1 This is an isometric schematic diagram that mainly illustrates the structure of the shell component in the technical background;

[0029] Figure 2 This is an isometric schematic diagram that mainly illustrates the overall structure in this embodiment;

[0030] Figure 3 This is an exploded view that mainly illustrates the cooperation relationship between the first base and the positioning block in this embodiment;

[0031] Figure 4 This is a schematic diagram illustrating the sliding relationship between the first detection seat, the first detection seat, and the base, which is the main feature of this embodiment.

[0032] Reference numerals: 1. Base; 11. First sliding groove; 12. Second sliding groove; 13. Third sliding groove; 2. First detection seat; 21. First seat body; 211. Embedding groove; 22. Positioning block; 221. Embedding block; 23. Main positioning post; 24. First positioning post; 25. Second positioning post; 3. Second detection seat; 31. Second seat body; 32. Third positioning post; 33. Second bolt; 4. Third detection seat; 41. Third seat body; 42. Fourth positioning post; 43. Third bolt; 5. Support block; 51. First bolt; 6. First shim block; 61. First quick clamp; 611. Clearance groove; 7. Second shim block; 71. Second quick clamp; 8. Housing part; 81. Main housing part; 811. Main positioning hole; 812. First positioning hole; 813. Second positioning hole; 82. Edge part; 821. Third positioning hole; 822. Fourth positioning hole. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.

[0034] This application discloses a testing fixture for automotive body parts.

[0035] Reference Figure 2 A testing fixture for automotive body parts includes a base 1, which is a rectangular steel plate. A first testing seat 2 is detachably mounted on the base 1. The first testing seat 2 is used to simultaneously test the dimensions of the main positioning hole 811, the first positioning hole 812, and the second positioning hole 813. A second testing seat 3 and a third testing seat 4 are slidably mounted on the base 1. The second testing seat 3 is used to test the dimension of the third positioning hole 821, and the third testing seat 4 is used to test the dimension of the fourth positioning hole 822.

[0036] Reference Figure 2 and Figure 3 The first detection seat 2 includes a first seat body 21, a positioning block 22, a main positioning post 23, a first positioning post 24, and a second positioning post 25. The first base 1 is arranged in an inverted T shape. The bottom ends of the first seat body 21 are fixed to the base 1 by bolts. The first seat body 21 has an upward-facing embedding groove 211. The bottom of the positioning block 22 is formed with an embedding block 221. The embedding block 221 and the embedding groove 211 of the first seat body 21 form an embedding fit. The side wall of the first seat body 21 and the side wall of the positioning block 22 are connected and fixed by bolts.

[0037] Reference Figure 2 and Figure 3 When it is necessary to inspect the main shell 81 of different specifications, only the positioning block 22 of the appropriate specification needs to be replaced, thereby replacing the main positioning post 23, the third positioning post 32 and the fourth positioning post 42 of different diameters, without having to replace the entire first base 21, which improves the operating efficiency.

[0038] Reference Figure 2 and Figure 3 The positioning block 22 is welded to the first base 21. The main positioning post 23, the first positioning post 24, and the second positioning post 25 are all vertically welded to the positioning block 22. The main positioning post 23 is inserted into the main positioning hole 811, the first positioning post 24 is inserted into the first positioning hole 812, and the second positioning post 25 is inserted into the second positioning hole 813. This allows the operator to quickly check the hole position accuracy of the main positioning hole 811, the first positioning hole 812, and the second positioning hole 813, making the inspection convenient and fast, and reducing the inspection error.

[0039] Reference Figure 2 A support block 5 is slidably mounted on the base 1. There are two support blocks 5 symmetrically arranged. The upper surface of any support block 5 abuts against the lower surface of the housing part 8. Thus, the support block 5 can assist the first detection seat 2 in supporting and fixing the housing part 8, providing uniform support force to the housing part 8 and ensuring stability during the detection process.

[0040] Reference Figure 2 and Figure 4 Two first sliding grooves 11 are provided on the base 1 near any support block 5 to form a left-right sliding engagement with the support block 5. A first bolt 51 is threaded on any support block 5 corresponding to the position and number of the first sliding grooves 11. When the first bolt 51 is tightened, it abuts against the bottom of the first sliding groove 11 to fix the position of the support block 5.

[0041] Reference Figure 2 There are four second detection seats 3, which are symmetrical in pairs. Since the structure and connection method of the four second detection seats 3 are the same, we will now take one of the second detection seats 3 as an example for explanation.

[0042] Reference Figure 2 and Figure 4 The second detection seat 3 includes a second seat body 31 and a third positioning post 32. The second base 1 is arranged in an inverted T shape. The third positioning post 32 is vertically welded to the second seat body 31. The diameter of the third positioning post 32 is adapted to the third positioning hole 821 of the housing part 8, that is, the third positioning post 32 and the third positioning hole 821 form an insertion fit. The base 1 is symmetrically provided with second sliding grooves 12 for forming a front and rear sliding fit with the second seat body 31. The bottom ends of the third seat body 41 are respectively threaded with second bolts 33 corresponding to the positions of the second sliding grooves 12.

[0043] Reference Figure 2There are two third detection seats 4, which are arranged symmetrically on the left and right. Since the structure and connection method of the two third detection seats 4 are the same, we will now take one of the third detection seats 4 as an example for explanation.

[0044] Reference Figure 2 and Figure 4 The third detection seat 4 includes a third seat body 41 and a fourth positioning post 42. The third base 1 is arranged in an inverted T shape. The fourth positioning post 42 is vertically welded to the third seat body 41. The diameter of the fourth positioning post 42 is adapted to the fourth positioning hole 822 of the housing part 8, that is, the fourth positioning post 42 and the fourth positioning hole 822 form an insertion fit. The base 1 is symmetrically provided with a third sliding groove 13 for forming a left and right sliding fit with the third seat body 41. The bottom ends of the third seat body 41 are respectively threaded with a third bolt 43 corresponding to the position of the third sliding groove 13.

[0045] Reference Figure 2 and Figure 4 When in use, the staff adjusts the position of the third seat 41 according to the specifications of the housing part 8 to adapt to the hole layout of different housings. After the third seat 41 is moved to the appropriate position, the third bolt 43 is screwed on. When the third bolt 43 is tightened, it presses against the bottom of the third sliding groove 13 to fix the position of the third seat 41, so that it can be adapted to the testing of the new specification housing.

[0046] Reference Figure 2 and Figure 4 The fourth positioning pin 42 is used to accurately test the insertion of the fourth positioning hole 822. That is, the size of the fourth positioning hole 822 can be quickly determined by the insertion and removal test. At the same time, the first seat 21 and the second seat 31 work together to realize the comprehensive inspection of the hole position 82 on the edge of the shell part 8, which further improves the inspection integrity and adaptability of the inspection tooling.

[0047] Reference Figure 2 and Figure 4 The base 1 is equipped with a first shim 6 and a second shim 7. The first shim 6 is set with four corresponding positions and quantities to the second detection seat 3. A first quick clamp 61 is fixed to any one of the first shim 6 by bolts, and any one of the first quick clamps 61 abuts against the edge 82 of the housing part 8. The second shim 7 is set with two corresponding positions and quantities to the third detection seat 4. A second quick clamp 71 is fixed to any one of the second shim 7 by bolts, and any one of the second quick clamps 71 abuts against the main shell part 81 of the housing part 8. The difference between the first quick clamp 61 and the second quick clamp 71 is that each of the first quick clamps 61 has a relief groove 611 for avoiding the third positioning post 32, so that the first quick clamp 61 stably abuts against and fixes the edge 82 of the housing part 8.

[0048] The implementation principle of this application embodiment is as follows: In actual use, the corresponding positioning block 22 is selected according to the specifications of the housing part 8, so that the dimensions of the main positioning post 23, the third positioning post 32 and the fourth positioning post 42 are adapted to the hole positions on the housing part 8 of the specified specifications. Then, the embedding block 221 on the positioning block 22 is embedded into the embedding groove 211 of the first seat 21, and the first seat 21 is connected and fixed to the positioning block 22 by bolts.

[0049] Next, the workers loosened the first bolt 51, slid the support block 5 along the first sliding groove 11 to the appropriate position, and locked the first bolt 51; then they loosened the second bolt 33 and the third bolt 43 respectively, adjusted the position of the second seat 31 back and forth along the second sliding groove 12 and locked the second bolt 33, and adjusted the position of the third seat 41 left and right along the third sliding groove 13 and locked the third bolt 43.

[0050] Place the housing part 8 on the first detection seat 2, the support seat, the second seat 31, and the third seat 41, and use the first quick clamp 61 and the second quick clamp 71 to press against the main shell part 81 and the edge part 82 of the housing part 8. Carefully observe whether the main positioning pin 23 is smoothly inserted into the corresponding main positioning hole 811, whether the first positioning pin 24 is smoothly inserted into the corresponding first positioning hole 812, whether the second positioning pin 25 is smoothly inserted into the corresponding second positioning hole 813, whether the third positioning pin 32 is smoothly inserted into the corresponding third positioning hole 821, and whether the fourth positioning pin 42 is smoothly inserted into the corresponding fourth positioning hole 822. If all positioning pins and positioning holes are completely matched, the housing part 8 is deemed qualified; otherwise, it is deemed unqualified.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An inspection tool for an automotive housing part, characterized by: Includes a base (1), on which a first detection seat (2) for simultaneously detecting the size of the main positioning hole, the first positioning hole and the second positioning hole is detachably provided, and a second detection seat (3) for detecting the size of the third positioning hole and a third detection seat (4) for detecting the size of the fourth positioning hole are also slidably provided on the base (1).

2. The detection tool for an automobile housing part according to claim 1, characterized in that: The first detection seat (2) includes a first seat body (21), a positioning block (22), a main positioning post (23) for inserting into the main positioning hole, a first positioning post (24) for inserting into the first positioning hole, and a second positioning post (25) for inserting into the second positioning hole. The first seat body (21) is fixed to the base (1) by bolts. The main positioning post (23), the first positioning post (24), and the second positioning post (25) are all set on the positioning block (22), which is set on the first seat body (21).

3. The detection tool for an automobile housing part according to claim 2, characterized in that: The first base (21) is provided with an embedding groove (211), and the positioning block (22) is provided with an embedding block (221) for embedding with the embedding groove (211). The first base (21) and the positioning block (22) are connected by bolts.

4. The detection tool for an automobile housing part according to claim 1, characterized in that: The base (1) is provided with a support block (5) for assisting the first detection seat (2) in supporting the housing parts. The base (1) is provided with a first sliding groove (11). The support block (5) is slidably disposed on the first sliding groove (11). The support block (5) is threadedly connected with a first bolt (51). The first bolt (51) passes through the support block (5) and abuts against the bottom of the first sliding groove (11).

5. The detection tool for an automobile housing part according to claim 1, characterized in that: The second detection seat (3) includes a second seat body (31) and a third positioning post (32) for detecting the third positioning hole. The second seat body (31) is slidably disposed on the base (1), and the third positioning post (32) is disposed on the second seat body (31), and the third positioning post (32) and the third positioning hole form an insertion fit.

6. The detection tool for an automobile housing part according to claim 5, wherein: The base (1) is provided with a second sliding groove (12), the second seat (31) is slidably disposed on the first sliding groove (11), and a second bolt (33) is threadedly connected to the second seat (31). The second bolt (33) passes through the second seat (31) and abuts against the bottom of the second sliding groove (12).

7. The detection tool for an automobile housing part according to claim 1, characterized in that: The third detection seat (4) includes a third seat body (41) and a fourth positioning post (42) for detecting the fourth positioning hole. The third seat body (41) is slidably disposed on the base (1), and the fourth positioning post (42) is disposed on the third seat body (41), and the fourth positioning post (42) and the fourth positioning hole form an insertion fit.

8. The detection tool for an automobile housing part according to claim 7, characterized in that: The base (1) is provided with a third sliding groove (13), the third seat (41) is slidably disposed on the third sliding groove (13), the third seat (41) is threadedly connected with a third bolt (43), the third bolt (43) passes through the third seat (41) and abuts against the bottom of the third sliding groove (13).