A device for detecting longitudinal position and surface profile of an automobile beam

Abstract

The utility model relates to the technical field of detection fixture for automobile parts, especially relates to a device for detecting longitudinal position and surface profile of automobile cross beam, which comprises a stabilizing frame, a reference plate and a detection piece, the reference plate is installed perpendicularly to the stabilizing frame, a linear guide rail is arranged on the vertical side wall of the reference plate, the linear guide rail is used for clamping and installing the cross beam to be detected, the inner wall of the linear guide rail is correspondingly arranged with the side wall of the cross beam to be detected, a clamp is arranged on the side wall of the reference plate, the clamp is arranged at the end of the linear guide rail, the clamp extends into the linear guide rail, and the clamp is used for fixing the cross beam to be detected in the linear guide rail, the detection piece is distributed on the circumferential side of the linear guide rail, and the detection piece is used for detecting the cross beam to be detected. The application improves the problem that the middle part of the cross beam is easily bent downward due to deflection in the detection process, which affects the detection result.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures for automotive parts, and more specifically, to a device for detecting the longitudinal position and surface profile of an automotive crossbeam. Background Technology

[0002] In the automotive manufacturing industry, the crossbeam, as a key load-bearing component of the vehicle body structure, directly affects the overall assembly stability, connection strength, and driving safety of the vehicle body in terms of its positional accuracy and surface profile. To ensure that the crossbeam meets design requirements, it is necessary to use specialized inspection fixtures to rigorously inspect its key features, such as hole positions, mounting surfaces, and contour edges, in order to screen out qualified workpieces.

[0003] In the existing technology, the positional accuracy and surface profile accuracy of automobile crossbeams are mostly tested using horizontally set testing fixtures. That is, the reference surface of the testing fixture is parallel to the horizontal plane, and the automobile crossbeam is placed on the fixture in a horizontal position for testing.

[0004] However, automotive crossbeams are typically long, thin-walled structures made of aluminum alloy or high-strength steel, possessing a degree of flexibility. During inspection, when placed horizontally on the inspection fixture, the middle of the crossbeam is prone to downward bending deformation due to its own weight. This deformation is not a manufacturing error of the workpiece itself, but rather an external force-induced deformation under inspection conditions. This directly leads to distortion of the relative positional relationships of holes and mounting surfaces in positional accuracy inspection, and deviations of the contour shape of the reference surface from the actual machining state in surface contour inspection. Ultimately, this results in decreased inspection accuracy and makes it impossible to accurately assess the actual machining quality of the workpiece. Utility Model Content

[0005] The technical problem to be solved by this utility model is that during the testing process, the middle part of the crossbeam is prone to downward bending deformation due to deflection, which affects the test results. In view of the above-mentioned defects of the prior art, a device for detecting the longitudinal position and surface profile of an automobile crossbeam is provided.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A device for detecting the longitudinal position and surface profile of an automotive crossbeam includes a stabilizer, a reference plate, and detection components. The reference plate is mounted perpendicular to the stabilizer. A linear guide rail is provided on the vertical side wall of the reference plate, which is used to clamp and install the crossbeam to be detected. The inner wall of the linear guide rail corresponds to the side wall of the crossbeam to be detected. A clamp is provided on the side wall of the reference plate, which is located at the end of the linear guide rail and extends into the linear guide rail. The clamp is used to fix the crossbeam to be detected in the linear guide rail. The detection components are distributed around the periphery of the linear guide rail and are used to detect the crossbeam to be detected.

[0008] By adopting the above technical solution, during the inspection of the automobile crossbeam, the automobile crossbeam is placed vertically by the cooperation of the reference plate and the linear guide rail, so that the inspection state conforms to the assembly state of the automobile crossbeam, reducing the deformation of the automobile crossbeam, resulting in higher inspection accuracy, simulating the assembly state of the automobile crossbeam, reducing deformation caused by improper placement, and improving inspection accuracy.

[0009] Preferably, a fixing post is provided on the outer wall of the linear guide rail, the fixing post is connected to the side wall of the reference plate, and the fixing post forms a detection gap between the back of the linear guide rail and the reference plate; multiple fixing posts are provided, and the multiple fixing posts are spaced apart; a detection groove is opened on the side wall of the linear guide rail, and the detection gap communicates with the detection groove.

[0010] By adopting the above technical solution, the detection stability of the vehicle crossbeam can be further increased, and the vehicle crossbeam can be detected from more directions. The fixed column ensures the linear guide rail is installed firmly, and the detection gap and detection groove work together to facilitate the detection tool to reach the crossbeam from multiple angles, especially to detect parts that are easily missed by traditional detection, thereby increasing the comprehensiveness and stability of the detection.

[0011] Preferably, the linear guide rail has multiple positioning holes on its side wall, and positioning pins are inserted into each of the multiple positioning holes, with the positioning pins extending to abut against the side wall of the crossbeam to be tested; a spring is sleeved on the end of the positioning pin, with one end of the spring abutting against the end of the positioning pin and the other end of the spring abutting against the side wall of the linear guide rail.

[0012] By adopting the above technical solution, during operation, the crossbeam is placed in the linear guide rail, and the positioning pin is tightly attached to the side wall of the crossbeam under the action of the spring spring, so as to achieve precise positioning of the crossbeam, compensate for position deviations caused by manufacturing tolerances, and improve the accuracy of the crossbeam position during testing.

[0013] Preferably, the linear guide rail is provided with positioning bolts, which are set to correspond to the hole positions of the crossbeam to be tested.

[0014] By adopting the above technical solution, when installing the crossbeam, the positioning bolts pass through the holes in the crossbeam, which further ensures the positional accuracy of the crossbeam during the inspection process and ensures that the inspection results can truly reflect the actual situation of the crossbeam. This is of great significance for the inspection of automotive crossbeams with hole position accuracy requirements.

[0015] Preferably, multiple clamps are provided, and the multiple clamps are respectively provided at both ends of the linear guide rail. A mounting block is provided on the side wall of the reference plate near the clamp. One end of the clamp is fixed to the mounting block, and the other end of the clamp extends into the linear guide rail, and the end of the clamp holds the positioning bolt.

[0016] By adopting the above technical solution, during operation, the clamps at both ends work simultaneously to firmly fix the crossbeam in the linear guide rail from both ends, preventing the crossbeam from moving or shaking during the testing process, and ensuring the stability of the testing process and the reliability of the testing results.

[0017] Preferably, the detection component includes a go / no-go gauge and a go / no-go block, and a plurality of fixing sleeves are provided on the side wall of the reference plate. The plurality of fixing sleeves are arranged along the outer periphery of the linear guide rail, and the fixing sleeves are used to fix the go / no-go gauge and the go / no-go block.

[0018] By adopting the above technical solution, during inspection, the go / no-go gauge and go / no-go block are used to check whether the diameter, contour, and other features of the crossbeam conform to the standards. The fixing sleeve is used to install and position the go / no-go gauge and go / no-go block, ensuring the accuracy and consistency of the inspection operation and enabling rapid judgment of the key dimensions and shape of the crossbeam.

[0019] Preferably, the stabilizer is provided with a fixing plate, the fixing plate has a reference hole, a reference ball is installed in the reference hole, and a triangular support plate is vertically connected to the fixing plate, the side of the triangular support plate is connected to the side of the reference plate.

[0020] By adopting the above technical solution, the fixed plate and the reference ball form a detection benchmark, providing a reference standard for the detection data. The triangular support plate enhances the stability of the connection between the reference plate and the stabilizer, ensuring the overall stability of the detection device during operation and improving the detection accuracy.

[0021] Preferably, a positioning block is engaged on the side wall of the linear guide rail, and a positioning groove is provided on the positioning block. The positioning groove engages the linear guide rail and the crossbeam to be tested.

[0022] By adopting the above technical solution, the positioning block assists in the installation and positioning of the crossbeam on the guide rail, further improving the accuracy of the crossbeam installation position, and facilitating replacement and adjustment when testing different types of crossbeams, thus enhancing the versatility of the testing device.

[0023] The beneficial effects of this utility model are as follows: During the inspection of the automobile crossbeam, the automobile crossbeam is placed vertically by the cooperation of the reference plate and the linear guide rail, so that the inspection state conforms to the assembly state of the automobile crossbeam, reducing the deformation of the automobile crossbeam, making the inspection accuracy higher, simulating the assembly state of the automobile crossbeam, reducing the deformation caused by improper placement, and improving the inspection accuracy. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure for detecting the longitudinal position and surface profile of an automobile crossbeam according to an embodiment of this application.

[0026] Figure 2 This is a front view of the detection structure in an embodiment of this application.

[0027] Figure 3 This is a side view of the detection structure in an embodiment of this application.

[0028] Figure 4 This is a top view of the detection structure in an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Stabilizer; 11. Fixing plate; 12. Reference hole; 13. Reference ball; 14. Triangular support plate; 2. Reference plate; 3. Inspection piece; 31. Go / no-go gauge; 32. Go / no-go block; 33. Fixing sleeve; 4. Linear guide rail; 41. Inspection gap; 42. Inspection groove; 43. Positioning hole; 44. Positioning pin; 45. Rebound spring; 46. Positioning bolt; 5. Clamp; 6. Fixing column; 7. Mounting block; 8. Positioning block. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] The preferred embodiment of this utility model is as follows: Figures 1 to 4 As shown, a device for detecting the longitudinal position and surface profile of an automotive crossbeam includes a stabilizer 1, a reference plate 2, and detection components 3. The reference plate 2 is installed perpendicular to the stabilizer 1. A linear guide rail 4 is provided on the vertical side wall of the reference plate 2. The linear guide rail 4 is used to clamp and install the crossbeam to be detected. The inner wall of the linear guide rail 4 is correspondingly arranged with the side wall of the crossbeam to be detected. A clamp 5 is provided on the side wall of the reference plate 2. The clamp 5 is located at the end of the linear guide rail 4 and extends into the linear guide rail 4. The clamp 5 is used to fix the crossbeam to be detected in the linear guide rail 4. The detection components 3 are distributed around the linear guide rail 4 and are used to detect the crossbeam to be detected.

[0032] During the inspection of the automobile crossbeam, the automobile crossbeam is placed vertically by the cooperation of the reference plate 2 and the linear guide rail 4, so that the inspection state conforms to the assembly state of the automobile crossbeam, reducing the deformation of the automobile crossbeam and making the inspection accuracy higher.

[0033] A fixing post 6 is provided on the outer wall of the linear guide rail 4. The fixing post 6 is connected to the side wall of the reference plate 2, and the fixing post 6 forms a detection gap 41 between the back of the linear guide rail 4 and the reference plate 2. A detection groove 42 is opened on the side wall of the linear guide rail 4, and the detection gap 41 communicates with the detection groove 42. This can further increase the detection stability of the vehicle crossbeam to be inspected, and can detect the vehicle crossbeam to be inspected from more directions. The fixing post 6 ensures that the linear guide rail 4 is installed firmly. The detection gap 41 and the detection groove 42 work together to facilitate the detection tool to reach the crossbeam from multiple angles, especially to detect parts that are easily missed by traditional detection, thereby increasing the comprehensiveness and stability of the detection.

[0034] Multiple positioning holes 43 are provided on the side wall of the linear guide rail 4, and positioning pins 44 are inserted into each of the positioning holes 43, extending to abut against the side wall of the crossbeam to be tested. A spring 45 is fitted onto the end of the positioning pin 44, with one end of the spring 45 abutting against the end of the positioning pin 44 and the other end abutting against the side wall of the linear guide rail 4. During operation, the crossbeam is placed into the linear guide rail 4, and the positioning pins 44, under the action of the spring 45, tightly fit against the side wall of the crossbeam, achieving precise positioning of the crossbeam, compensating for positional deviations caused by manufacturing tolerances, and improving the accuracy of the crossbeam position during testing.

[0035] The linear guide rail 4 is equipped with positioning bolts 46, which correspond to the hole positions of the crossbeam to be inspected. When installing the crossbeam, the positioning bolts 46 pass through the holes of the crossbeam, further ensuring the positional accuracy of the crossbeam during the inspection process. This ensures that the inspection results can truly reflect the actual condition of the crossbeam, which is of great significance for the inspection of automotive crossbeams with hole position accuracy requirements.

[0036] Multiple clamps 5 are provided, each positioned at one end of the linear guide rail 4. Mounting blocks 7 are mounted on the side wall of the reference plate 2 near the clamps 5. One end of each clamp 5 is fixed to the mounting block 7, and the other end extends into the linear guide rail 4. During operation, the clamps 5 at both ends work simultaneously to firmly fix the crossbeam to the linear guide rail 4 from both ends, preventing the crossbeam from moving or shaking during the testing process, thus ensuring the stability of the testing process and the reliability of the test results.

[0037] The inspection component 3 includes a go / no-go gauge 31 and a go / no-go block 32. Multiple fixing sleeves 33 are provided on the side wall of the reference plate 2, and these fixing sleeves 33 are arranged along the outer periphery of the linear guide rail 4. During inspection, the go / no-go gauge 31 and the go / no-go block 32 are used to check whether the diameter, contour, and other features of the crossbeam conform to the standards. The fixing sleeves 33 are used to install and position the go / no-go gauge 31 and the go / no-go block 32, ensuring the accuracy and consistency of the inspection operation and enabling rapid judgment of the key dimensions and shape of the crossbeam.

[0038] A fixing plate 11 is provided on the stabilizer 1, and a reference hole 12 is opened on the fixing plate 11. A reference ball 13 is installed in the reference hole 12. A triangular support plate 14 is vertically connected to the fixing plate 11, and the side of the triangular support plate 14 is connected to the side of the reference plate 2. The fixing plate 11 and the reference ball 13 form a detection reference, providing a reference standard for detection data. The triangular support plate 14 enhances the stability of the connection between the reference plate 2 and the stabilizer 1, ensuring the overall stability of the detection device during operation and improving detection accuracy.

[0039] A positioning block 8 is snapped onto the side wall of the linear guide rail 4. The positioning block 8 has a positioning groove that engages the linear guide rail 4 and the crossbeam to be tested. The positioning block 8 assists in the installation and positioning of the crossbeam on the guide rail, further improving the accuracy of the crossbeam installation position, and facilitating replacement and adjustment when testing different types of crossbeams, thus enhancing the versatility of the testing device.

[0040] The implementation principle of the vehicle crossbeam longitudinal position and surface profile detection device according to this application embodiment is as follows: Based on the stabilizer 1 and the reference plate 2, the vehicle crossbeam is vertically placed via the linear guide rail 4 on the reference plate 2, simulating the actual assembly state and reducing deformation caused by improper placement. The linear guide rail 4 is connected to the reference plate 2 through multiple spaced fixing posts 6, ensuring stable installation and forming a detection gap 41 on the back side. Combined with the detection groove 42 and positioning holes 43 on the side wall of the guide rail, this provides space for multi-directional detection. The positioning pin 44, under the action of the return spring 45, tightly abuts against the side wall of the crossbeam, and the positioning bolt 46 passes through the crossbeam holes; both work together to achieve precise positioning of the crossbeam. Multiple clamps 5 fix the crossbeam from both ends of the linear guide rail 4, further ensuring the stability of the crossbeam during the detection process. The detection components 3 distributed around the linear guide rail 4, such as go / no-go gauges 31 and go / no-go blocks 32, can be positioned by the fixing sleeve 33. Using the detection gap 41, detection groove 42 and other channels, the longitudinal position and surface profile of the crossbeam can be fully detected. The triangular support plate 14 on the reference plate 2 and the reference ball 13 on the fixing plate 11 provide a stable reference for the entire device, ultimately achieving high-precision and all-round detection effect.

[0041] The testing device uses a reference plate 2 and a linear guide rail 4 to vertically place the car crossbeam to simulate the assembly state and reduce deformation. Combined with the structure of fixed column 6, positioning pin 44, positioning bolt 46, clamp 5, etc., it achieves stable installation and precise positioning of the crossbeam. It uses the detection gap 41, detection groove 42 and multi-directionally distributed detection parts 3 to perform comprehensive detection. At the same time, the overall stability of the device is ensured by the triangular support plate 14 and the reference ball 13, thereby effectively improving the detection accuracy and comprehensiveness of the longitudinal position and surface profile of the car crossbeam.

[0042] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A device for detecting the longitudinal position and surface profile of an automobile crossbeam, characterized in that, The system includes a stabilizer, a reference plate, and testing components. The reference plate is mounted perpendicular to the stabilizer. A linear guide rail is provided on the vertical side wall of the reference plate. The linear guide rail is used to clamp and install the crossbeam to be tested. The inner wall of the linear guide rail corresponds to the side wall of the crossbeam to be tested. A clamp is provided on the side wall of the reference plate. The clamp is located at the end of the linear guide rail and extends into the linear guide rail. The clamp is used to fix the crossbeam to be tested in the linear guide rail. The testing components are distributed around the periphery of the linear guide rail and are used to test the crossbeam to be tested.

2. The device for detecting the longitudinal position and surface profile of an automobile crossbeam according to claim 1, characterized in that, The linear guide rail has a fixing post on its outer wall, which is connected to the side wall of the reference plate. The fixing post creates a detection gap between the back of the linear guide rail and the reference plate. Multiple fixing posts are provided, spaced apart. The side wall of the linear guide rail has a detection groove, which is connected to the detection gap.

3. The device for detecting the longitudinal position and surface profile of an automobile crossbeam according to claim 1, characterized in that, The linear guide rail has multiple positioning holes on its side wall, and positioning pins are inserted into each of the positioning holes. The positioning pins extend to abut against the side wall of the crossbeam to be tested. A spring is fitted on the end of the positioning pin. One end of the spring abuts against the end of the positioning pin, and the other end of the spring abuts against the side wall of the linear guide rail.

4. The device for detecting the longitudinal position and surface profile of an automobile crossbeam according to claim 1, characterized in that, The linear guide rail is equipped with positioning bolts, which are set to correspond to the hole positions of the crossbeam to be tested.

5. The device for detecting the longitudinal position and surface profile of an automobile crossbeam according to claim 4, characterized in that, The clamps are provided in multiple ways, and the clamps are respectively located at both ends of the linear guide rail. The reference plate has a mounting block on the side wall near the clamp. One end of the clamp is fixed to the mounting block, and the other end of the clamp extends into the linear guide rail. The end of the clamp holds the positioning bolt.

6. The device for detecting the longitudinal position and surface profile of an automobile crossbeam according to claim 1, characterized in that, The detection component includes a go / no-go gauge and a go / no-go block. Multiple fixing sleeves are provided on the side wall of the reference plate, and the multiple fixing sleeves are arranged along the outer periphery of the linear guide rail.

7. The device for detecting the longitudinal position and surface profile of an automobile crossbeam according to claim 1, characterized in that, The stabilizer is provided with a fixing plate, a reference hole is provided on the fixing plate, a reference ball is installed in the reference hole, and a triangular support plate is vertically connected to the fixing plate, with the side of the triangular support plate connected to the side of the reference plate.

8. The device for detecting the longitudinal position and surface profile of an automobile crossbeam according to claim 1, characterized in that, A positioning block is engaged on the side wall of the linear guide rail, and a positioning groove is provided on the positioning block. The positioning groove engages the linear guide rail and the crossbeam to be tested.

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