Detection tool for thin-wall long condition of automobile

Abstract

The utility model relates to the technical field of detection tools, in particular to an automobile thin-wall long condition detection tool which comprises a rack, positioning blocks are arranged on one side of the rack, mounting holes are formed in the outer ends of the top faces of the positioning blocks, fasteners are arranged at the tops of the positioning blocks, the multiple positioning blocks are distributed in the long edge direction of the rack, and the mounting holes are formed in the mounting holes. A plurality of connecting holes in the bottom of the workpiece correspond to the mounting holes in a one-to-one mode, a first abutting plate and a second abutting plate for limiting the end of the workpiece are arranged on one side of the rack, the end of the workpiece is clamped between the first abutting plate and the second abutting plate, a detection assembly is arranged on one side of the rack, and one side of the detection assembly is located on the outer side of the positioning block. The detection assembly is used for providing installation points of a plurality of measurement points for the range finder, and the detection accuracy of the thin-wall long condition can be improved.

Description

A testing fixture for thin-walled long-term automotive applications Technical Field

[0001] This application relates to the technical field of testing tooling, and in particular to a testing tooling for thin-walled long automotive applications. Background Technology

[0002] Thin-walled long structures are an important part of the vehicle body frame. They constitute a critical load transfer path and bear the heavy responsibility of absorbing and dispersing huge impact energy during a vehicle collision. Even small deviations in their size, shape, and material thickness can significantly affect their mechanical properties, thereby endangering the integrity of the passenger compartment and the safety of the occupants. Therefore, after the production of thin-walled long structures, it is necessary to inspect the thin-walled long structures of the vehicle body.

[0003] Because thin-walled long sections are thin and long, they are prone to deformation. Furthermore, they have complex spatial curved surfaces and bends, making them unsuitable for conventional clamping and inspection methods. Currently, workers typically use various measuring rulers to measure the position of different parts and determine whether the parts are qualified based on parameter comparisons. However, this manual measurement method is prone to errors due to hand tremors, which can affect the accuracy of the measurement results. Summary of the Invention

[0004] To improve the detection accuracy of thin-walled long conditions, this application provides a detection fixture for thin-walled long conditions in automobiles.

[0005] This application provides a testing fixture for thin-walled, long-condition automobiles, employing the following technical solution:

[0006] A testing fixture for thin-walled long automotive parts includes a frame, a positioning block on one side of the frame, a mounting hole on the outer end of the top surface of the positioning block, a fastener on the top of the positioning block, and multiple positioning blocks distributed along the long side of the frame. Multiple connecting holes on the bottom of the workpiece correspond one-to-one with the multiple mounting holes. A first abutment plate and a second abutment plate on one side of the frame limit the end of the workpiece, with the end of the workpiece being engaged between the first abutment plate and the second abutment plate. A testing component is located on one side of the frame, on the outer side of the positioning block, and the testing component provides mounting points for multiple measurement points of a rangefinder.

[0007] By adopting the above technical solution, when it is necessary to inspect the workpiece, this application first places the workpiece on the top surface of multiple positioning blocks, aligning the mounting holes with the connecting holes one by one. At the same time, the end of the workpiece is inserted into the first abutment plate and the second abutment plate. Then, multiple fasteners are inserted into their corresponding mounting holes, so that the workpiece is fixed to the top surface of the positioning blocks by the fasteners. Finally, the rangefinder is inserted into multiple mounting points of the detection component to detect whether multiple measurement points of the workpiece are qualified. Compared with the prior art, the manual measurement method is affected by the shaking of the operator's hand, which can affect the measurement results. This application can improve the detection accuracy of thin-walled long conditions.

[0008] Preferably, an abutment component is provided on one side of the frame. The abutment component includes a connecting column, which is rotatably connected to one side of the frame. One end of the connecting column extends from the bottom of one end of the workpiece, and the side of the connecting column near the first abutment plate abuts against the inner wall of the workpiece.

[0009] By adopting the above technical solution, during the process of the workpiece being inserted into one side of the first abutment plate, the connecting column is rotated to move the connecting column away from the first abutment plate, increasing the space between the abutment block and the first abutment plate. This facilitates the insertion of the workpiece between the first abutment plate and the second abutment plate. After the workpiece is installed into the first abutment plate and the second abutment plate, the connecting column is rotated again so that one side of the connecting column abuts against the inner wall of the workpiece, thereby abutting the workpiece against one side of the first abutment plate. This further limits the workpiece and reduces the possibility of the workpiece not abutting against the first abutment plate, thereby reducing the possibility of inaccurate workpiece position affecting the test results.

[0010] Preferably, the abutment component also includes a spring, one end of which is fixedly connected to one side of the frame, and the other end of which is connected to the end of the connecting post away from the positioning block.

[0011] By adopting the above technical solution, when the connecting column is rotated under the action of the spring, the spring is in a compressed state. When the connecting column is released, the spring returns to its original deformation, which drives the connecting block to rotate until the connecting column abuts against one side of the workpiece. At the same time, the spring can provide elastic force to the connecting column, so that the connecting column can better abut against one side of the workpiece.

[0012] Preferably, the detection assembly includes a first detection rod, which is disposed on one side of the frame. One end of the first detection rod has a mounting groove aligned with the workpiece side. One end of the rangefinder passes through the mounting groove and is connected to the first detection rod.

[0013] By adopting the above technical solution, after the workpiece is installed and limited, one end of the rangefinder passes through the installation groove, and the rangefinder is installed on the first detection rod. Then, the rangefinder is used to measure whether the position is qualified.

[0014] Preferably, the long side of the first detection rod is parallel to the long side of the frame, and a mounting base is fixed at one end of the side wall of the frame. One end of the first detection rod moves through one end of the mounting base, and the first end of the first detection rod is rotatably connected to the mounting base.

[0015] By adopting the above technical solution, one end of the first detection rod is rotatably connected to the mounting base. When the workpiece is being detected, the first detection rod is located on one side of the workpiece. After the detection is completed, the first detection rod is rotated to move one end of the first detection rod away from the workpiece, thereby reducing the impact of the first detection rod on the disassembly and assembly of the workpiece.

[0016] Preferably, a locking rod is provided on the top surface of the mounting base, one end of which moves through the top of the mounting base, and a locking groove is provided on the top surface of the first detection rod, which corresponds to the locking rod.

[0017] By adopting the above technical solution, when the workpiece is installed and needs to be inspected, the locking rod is pressed down so that the bottom of the locking rod passes through the locking groove, thereby locking the position of the first detection rod. This reduces the impact of the first detection rod shaking or moving during inspection on the inspection results.

[0018] Preferably, the detection assembly further includes a second detection rod, which is mounted on one side of the frame and located on the side of the first detection rod. The shape of the top of the second detection rod is adapted to the shape of the corresponding part of the workpiece. A first connecting groove is provided through the top of the side wall of the second detection rod, and the first connecting groove is aligned with one side of the workpiece.

[0019] By adopting the above technical solution, one end of the rangefinder passes through the first connecting groove and is installed on the second detection rod, so that the rangefinder can measure whether the workpiece measurement point is qualified.

[0020] Preferably, a second connecting groove is provided through the bottom of the side wall of the second detection rod, and the second connecting groove is aligned with the bottom of one side of the workpiece.

[0021] By adopting the above technical solution, the first connecting groove and the second connecting groove are respectively set at the top and bottom of the second detection rod, so as to make full use of the second detection rod, thereby saving materials and simplifying the structure.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. When it is necessary to inspect the workpiece, this application first places the workpiece on the top surface of multiple positioning blocks, aligning the mounting holes with the connecting holes one by one. At the same time, the end of the workpiece is inserted into the first abutment plate and the second abutment plate. Then, multiple fasteners are inserted into their corresponding mounting holes, so that the workpiece is fixed to the top surface of the positioning blocks by the fasteners. Finally, the rangefinder is inserted into multiple mounting points of the detection component to detect whether multiple measurement points of the workpiece are qualified. Compared with the prior art, the manual measurement method is affected by the shaking of the operator's hand, which will affect the measurement results. This application can improve the detection accuracy of thin-walled long conditions.

[0024] 2. During the process of the workpiece being inserted into one side of the first abutment plate, rotate the connecting column to move it away from the first abutment plate, increasing the space between the abutment block and the first abutment plate. This facilitates inserting the workpiece between the first and second abutment plates. After the workpiece is installed between the first and second abutment plates, rotate the connecting column again so that one side of the connecting column abuts against the inner wall of the workpiece, thereby abutting the workpiece against one side of the first abutment plate. This further limits the workpiece's position and reduces the possibility of the workpiece not abutting against the first abutment plate, thus reducing the possibility of inaccurate workpiece positioning affecting the test results. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the overall structure of an embodiment of this application.

[0026] Figure 2 is a top view of an embodiment of this application.

[0027] Figure 3 is a schematic diagram of the overall structure from another perspective of an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Mounting plate; 12. Positioning block; 13. Screw; 14. Connecting plate; 15. Mounting base; 16. Locking rod; 2. Limiting assembly; 21. First abutment plate; 22. Second abutment plate; 3. Abutment assembly; 31. Connecting column; 32. Spring; 33. Abutment block; 4. Detection assembly; 41. First detection rod; 411. Mounting groove; 42. Second detection rod; 421. First connecting groove; 422. Second connecting groove; 43. Third detection rod; 431. Stabilizing groove; 5. Workpiece. Detailed Implementation

[0029] The present application will be further described in detail below with reference to Figures 1-3.

[0030] This application discloses a testing fixture for thin-walled long-condition automobiles.

[0031] Referring to Figures 1 and 2, a testing fixture for thin-walled long automotive parts includes a frame 1. A mounting plate 11 is fixed to the side wall of the frame 1. The shape of the top surface of the mounting plate 11 is adapted to the shape of the bottom of the workpiece 5. A positioning block 12 is fixed to the top surface of the mounting plate 11. The long side of the positioning block 12 is parallel to the wide side of the mounting plate 11. A mounting hole is provided at the outer end of the top surface of the positioning block 12. Correspondingly, a connecting hole is provided at the bottom of the workpiece 5. The connecting hole corresponds to the mounting hole. The number of positioning blocks 12 depends on the specific situation. The number of positioning blocks 12 is consistent with the number of connecting holes at the bottom of the workpiece 5. In this embodiment, there are four positioning blocks 12. The four positioning blocks 12 are distributed along the long side of the mounting plate 11. The four mounting holes correspond one-to-one with the four connecting holes at the bottom of the workpiece 5. A fastener is provided on the top of the positioning block 12. In this embodiment, the fastener is a screw 13. The number of screws 13 is adapted to the number of mounting holes.

[0032] When it is necessary to inspect the workpiece 5, the workpiece 5 is placed between the top surfaces of the four positioning blocks 12. The four connecting holes correspond to the mounting holes that are close to them. One end of the screw 13 is inserted into both the connecting hole and the mounting hole at the same time. The screw 13 is threadedly connected to the positioning block 12, thereby fixing the workpiece 5 on the top of the positioning block 12.

[0033] Limiting components 2 are respectively provided at both ends of the frame 1. The limiting components 2 include a first abutting plate 21 and a second abutting plate 22. The first abutting plate 21 is fixed on the top surface of the mounting plate 11. After the workpiece 5 is installed, the side wall of the first abutting plate 21 abuts against the inner side of the workpiece 5. A mounting column is fixed on one side of the frame 1. The long side of the mounting column is parallel to the wide side of the mounting plate 11. The mounting column is located at the bottom of the mounting plate 11. The second abutting plate 22 is fixed on the outer end of the top surface of the mounting column. The second abutting plate 22 is arranged opposite to the first abutting plate 21.

[0034] The two ends of the workpiece 5 are arc-shaped structures that flip outwards. The outer wall of the flipped part of the workpiece 5 abuts against one side of the first abutting plate 21, and the inner wall of the other end of the flipped part of the workpiece 5 abuts against the second abutting plate 22. This makes one end of the workpiece 5 stuck between the first abutting plate 21 and the second abutting plate 22. The first abutting plate 21 and the second abutting plate 22 limit the end of the workpiece 5 and reduce the instability of the end of the workpiece 5.

[0035] Referring to Figures 2 and 3, an abutment component 3 is provided at one end of the side wall of the frame 1. The abutment component 3 includes a connecting post 31 and a spring 32. A connecting plate 14 is fixed at one end of the side wall of the frame 1. The long side of the connecting plate 14 is parallel to the wide side of the mounting plate 11. There are two connecting plates 14, which are arranged vertically parallel to each other. A space is reserved between the two connecting plates 14 for placing the connecting post 31. The connecting post 31 moves through the space between the two connecting plates 14 and is rotatably connected to the two connecting plates 14. One end of the connecting post 31 extends from the bottom of one end of the workpiece 5. One end of the connecting column 31 is located inside the flipping part of the workpiece 5. One end of the spring 32 is fixedly connected to one side of the frame 1. The other end of the spring 32 is connected to the end of the connecting column 31 away from the positioning block 12. An abutment block 33 is fixed on the side of the connecting column 31 near the first abutment plate 21. One side of the abutment block 33 abuts against the inner wall of the workpiece 5, thereby abutting the workpiece 5 against the side of the first abutment plate 21, further limiting the workpiece 5 and reducing the situation where the workpiece 5 and the first abutment plate 21 are not abutted. There are two abutment components 3, which are distributed at both ends of the frame 1.

[0036] A detection component 4 is provided on one side of the frame 1. The detection component 4 includes a first detection rod 41, the long side of which is parallel to the long side of the frame 1. A mounting base 15 is fixed to one end of the side wall of the frame 1. One end of the first detection rod 41 passes through one end of the mounting base 15 and is rotatably connected to the mounting base 15, allowing one end of the first detection rod 41 to rotate outward. A mounting groove 411 is provided through the side wall of the first detection rod 41. The mounting groove 411 is aligned with one side of the workpiece 5. After the workpiece 5 is installed and positioned, one end of the rangefinder passes through the mounting groove 411 and is installed on the first detection rod 41. The rangefinder is then used to measure whether the position is qualified.

[0037] A locking rod 16 is provided on the top surface of the mounting base 15. One end of the locking rod 16 passes through the top of the mounting base 15. Correspondingly, a locking groove is provided on the top surface of the first detection rod 41, which corresponds to the locking rod 16. When the workpiece 5 is installed and needs to be inspected, the locking rod 16 is pressed down so that the bottom of the locking rod 16 passes through the locking groove, thereby locking the position of the first detection rod 41. This reduces the impact of the first detection rod 41 shaking or moving during inspection on the inspection results. After inspection, the locking rod 16 is pulled up, and then the first detection rod 41 is rotated to move one end of the first detection rod 41 away from the workpiece 5, thereby reducing the impact of the first detection rod 41 on the disassembly and assembly of the workpiece 5.

[0038] Referring to Figures 1 and 2, the detection assembly 4 also includes a second detection rod 42 and a third detection rod 43. One bottom end of the second detection rod 42 is fixed to one side of the frame 1. The bottom of the second detection rod 42 is located at the bottom of the mounting plate 11, and the top of the second detection rod 42 is located on the outer side of the positioning block 12. The shape of the top of the second detection rod 42 is adapted to the shape of the corresponding part of the workpiece 5. A first connecting groove 421 is provided through the top of the side wall of the second detection rod 42, which is aligned with one side of the workpiece 5. A second connecting groove 422 is provided through the bottom of the side wall of the second detection rod 42, which is aligned with the bottom of one side of the workpiece 5. This allows the first connecting groove 421 and the second connecting groove 422 to be aligned with two measurement points of the workpiece 5, respectively. One end of the rangefinder passes through the first connecting groove 421 or the second connecting groove 422 and is mounted on the second detection rod 42, so that the rangefinder can measure whether the two measurement points of the workpiece 5 are qualified. There are two second detection rods 42, which are symmetrically arranged on one side of the frame 1.

[0039] The bottom end of the third detection rod 43 is fixed to the side wall of the frame 1. The third detection rod 43 is located in the middle of the frame 1. The bottom of the third detection rod 43 is located at the bottom of the mounting plate 11. The top of the third detection rod 43 is located on the outer side of the positioning block 12. Correspondingly, a stabilizing groove 431 is opened through the outer wall of the third detection rod 43. The stabilizing groove 431 is aligned with the middle of the workpiece 5. One end of the rangefinder passes through the stabilizing groove 431. The rangefinder is installed on the third detection rod 43, and the point is measured to see if it is qualified.

[0040] When workpiece 5 needs to be inspected, this application first places workpiece 5 on the top surface of the four positioning blocks 12, aligning the mounting holes with the connecting holes one by one. Simultaneously, the end of workpiece 5 is inserted into the first abutment plate 21 and the second abutment plate 22. While workpiece 5 is being inserted into the first abutment plate 21, the connecting post 31 is rotated to move the abutment block 33 away from the first abutment plate 21, increasing the space between the abutment block 33 and the first abutment plate 21, facilitating the insertion of workpiece 5 between the first abutment plate 21 and the second abutment plate 22. Afterwards, the connecting post 31 is released, and the spring 32... During the deformation recovery process, the connecting block is rotated until the abutting block 33 abuts against one side of the workpiece 5. Then, the four screws 13 are inserted into their corresponding mounting holes, so that the workpiece 5 is fixed to the top surface of the positioning block 12 by the screws 13. Finally, the rangefinder is inserted into the mounting groove 411, the first connecting groove 421 and the stabilizing groove 431 respectively, so as to detect whether multiple measurement points of the workpiece 5 are qualified. Compared with the prior art, the measurement results are affected by the shaking of the operator's hand when measured manually. This application can improve the detection accuracy of thin-walled long conditions.

[0041] The above are all preferred embodiments of this application. These embodiments are merely explanations 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 automobile thin-wall long condition detection tooling, characterized in that, The device includes a frame (1), a positioning block (12) on one side of the frame (1), an installation hole on the outer end of the top surface of the positioning block (12), a fastener on the top of the positioning block (12), and multiple positioning blocks (12) distributed along the long side of the frame (1). Multiple connecting holes on the bottom of the workpiece (5) correspond one-to-one with multiple installation holes. A first abutment plate (21) and a second abutment plate (22) are provided on one side of the frame (1) to limit the end of the workpiece (5). The end of the workpiece (5) is clamped between the first abutment plate (21) and the second abutment plate (22). A detection component (4) is provided on one side of the frame (1). The detection component (4) is located on the outer side of the positioning block (12). The detection component (4) is used to provide multiple measurement points for the rangefinder.

2. The inspection fixture for thin-walled long conditions of automobiles according to claim 1, characterized in that, A contact assembly (3) is provided on one side of the frame (1). The contact assembly (3) includes a connecting column (31). The connecting column (31) is rotatably connected to one side of the frame (1). One end of the connecting column (31) extends from the bottom of one end of the workpiece (5). The side of the connecting column (31) near the first contact plate (21) abuts against the inner wall of the workpiece (5).

3. The inspection fixture for thin-walled long conditions in automobiles according to claim 2, characterized in that, The abutment component (3) also includes a spring (32), one end of which is fixedly connected to one side of the frame (1), and the other end of which is connected to the end of the connecting post (31) away from the positioning block (12).

4. The inspection fixture for thin-walled long conditions of automobiles according to claim 1, characterized in that, The detection assembly (4) includes a first detection rod (41), which is located on one side of the frame (1). One end of the first detection rod (41) has a mounting groove (411) aligned with the workpiece (5). One end of the rangefinder passes through the mounting groove (411) and is connected to the first detection rod (41).

5. The inspection fixture for thin-walled long conditions of automobiles according to claim 4, characterized in that, The long side of the first detection rod (41) is parallel to the long side of the frame (1). A mounting base (15) is fixed at one end of the side wall of the frame (1). One end of the first detection rod (41) moves through one end of the mounting base (15). The first detection rod (41) and the mounting base (15) are rotatably connected.

6. The inspection fixture for thin-walled long conditions in automobiles according to claim 5, characterized in that, The top surface of the mounting base (15) is provided with a locking rod (16), one end of which moves through the top of the mounting base (15), and the top surface of the first detection rod (41) is provided with a locking groove, which corresponds to the locking rod (16).

7. The inspection fixture for thin-walled long conditions of automobiles according to claim 4, characterized in that, The detection assembly (4) also includes a second detection rod (42), which is installed on one side of the frame (1). The second detection rod (42) is located on the side of the first detection rod (41). The shape of the top of the second detection rod (42) is adapted to the shape of the corresponding part of the workpiece (5). A first connecting groove (421) is provided through the top of the side wall of the second detection rod (42), and the first connecting groove (421) is aligned with one side of the workpiece (5).

8. The inspection fixture for thin-walled long conditions of automobiles according to claim 7, characterized in that, The bottom of the side wall of the second detection rod (42) is provided with a second connecting groove (422), which is aligned with the bottom of the workpiece (5).

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