A detection device for visual inspection of welding seams of automobile differential assembly lines

Abstract

The present application relates to a detection device for visual inspection of welding seams of an automobile differential assembly line, which includes a base; a mounting plate connected to the base through a vertical plate; an inspection module arranged below the mounting plate, which includes a test probe, a horizontal slider cylinder, a horizontal ball bearing guide rail, a static mounting block, a dynamic mounting block and a displacement sensor, wherein the horizontal ball bearing guide rail has a horizontal slider portion and a horizontal slide rail portion, the mounting plate, the body of the horizontal slider cylinder, the horizontal slider portion, the static mounting block and the displacement sensor are fixedly connected in sequence along the vertical direction, the push rod of the horizontal slider cylinder, the horizontal slide rail portion and the dynamic mounting block are fixedly connected in sequence along the vertical direction, the test probe is detachably connected to the dynamic mounting block and is arranged toward a side away from the static mounting block, the probe of the displacement sensor faces the dynamic mounting block to measure the displacement distance of the test probe; and a differential mounting shaft arranged at the base for mounting the differential. The present application has the effect of improving the detection speed and reducing the detection cost.

Description

Technical Field

[0001] The present application relates to the technical field of weld appearance inspection, and in particular to a detection device for weld appearance inspection of an automobile differential assembly line. Background Art

[0002] The automobile differential is one of the key components of the automobile transmission system. Its main function is to adjust the speed difference between the left and right wheels when the vehicle turns to ensure driving stability and safety. With the rapid development of the automobile industry, the quality control requirements for automobile parts are becoming higher and higher. Especially in the automated production line, the welding quality of the differential directly affects the performance and reliability of the vehicle.

[0003] The differential welding seam appearance inspection methods in related technologies mainly include manual visual inspection and non-contact optical inspection. Manual visual inspection relies on the operator's experience and technical level, is easily affected by subjective factors, and the inspection results are unstable and inefficient. Non-contact optical inspection uses a camera or other optical equipment to image the weld. Although the inspection speed is fast, it is greatly affected by ambient light and the equipment cost is high.

[0004] These problems limit the application of detection devices in large-scale production, especially in automated production lines that require fast and accurate detection. Summary of the invention

[0005] In order to improve the detection speed and reduce the detection cost, the present application provides a detection device for the appearance inspection of the welding seam of the automobile differential assembly line. The present application provides a detection device for the appearance inspection of the welding seam of an automobile differential assembly line, which adopts the following technical solution: A detection device for visual inspection of welding seams of an automobile differential assembly line comprises a base; a mounting plate, the mounting plate being connected to the base through a vertical plate; an inspection module, the inspection module being arranged below the mounting plate, the inspection module comprising a test probe, a horizontal slider cylinder, a horizontal ball bearing guide rail, a static mounting block, a dynamic mounting block and a displacement sensor, the horizontal ball bearing guide rail having a horizontal slider portion and a horizontal slide rail portion, the mounting plate, the body of the horizontal slider cylinder, the horizontal slider portion, the static mounting block and the displacement sensor being fixedly connected in sequence along a vertical direction, the push rod of the horizontal slider cylinder, the horizontal slide rail portion and the dynamic mounting block being fixedly connected in sequence along a vertical direction, the test probe being detachably connected to the dynamic mounting block and the test probe being arranged toward a side away from the static mounting block, the probe of the displacement sensor being arranged toward the dynamic mounting block to measure the displacement distance of the test probe; a differential mounting shaft, the differential mounting shaft being arranged at the base, the differential mounting shaft being used for mounting a differential.

[0006] By adopting the above technical scheme, the design of the horizontal ball bearing guide rail improves the movement flexibility and positioning accuracy of the inspection module. The setting of the differential mounting shaft facilitates the rapid installation and disassembly of the differential, thereby improving the operating efficiency of the assembly line. The mutual coordination of the static mounting block and the dynamic mounting block, as well as the detachable connection between the test probe and the dynamic mounting block, enable the test probe to move to the position of the differential mounting shaft, i.e., the position of the differential weld, under the action of the horizontal slider cylinder. The displacement distance of the test probe can be accurately measured by the displacement sensor, thereby accurately evaluating the quality of the weld.

[0007] Optionally, the number of the inspection modules is three, the detection modules are arranged at intervals around the central axis direction of the differential mounting shaft, and the test probe is arranged toward the central axis direction of the differential mounting shaft.

[0008] By adopting the above technical solution, all-round inspection of the differential weld can be achieved. The three inspection modules are arranged at intervals around the central axis of the differential mounting shaft, ensuring accurate evaluation of multiple positions and angles of the weld. This layout not only improves the coverage of weld inspection, but also enhances the reliability and accuracy of the inspection results. At the same time, multiple inspection modules work in parallel, further improving the overall operating efficiency of the assembly line.

[0009] Optionally, a mounting guide is provided on the dynamic mounting block, and the mounting guide is coaxially arranged with the probe of the displacement sensor. A guide sleeve for mounting the test probe is provided in the mounting guide, and a fastening hole for mounting a first tapered threaded bolt is provided on one side of the mounting guide. When the first tapered threaded bolt is installed in the fastening hole, the guide sleeve and the test probe are relatively fixed.

[0010] By adopting the above technical solution, the test probe and the displacement sensor probe are precisely aligned, ensuring that the test probe can accurately measure the appearance defects of the differential welding seam during the detection process. The guide sleeve design in the installation guide makes it easy to install and replace the test probe, improving the flexibility and maintainability of the detection device. The first tapered thread bolt in the fastening hole ensures the fixation of the guide sleeve and the test probe after alignment, preventing displacement during the detection process and ensuring the accuracy of the detection results.

[0011] Optionally, a second tapered threaded bolt is provided on the side of the mounting conduit close to the displacement sensor, a threaded hole for matching with the second tapered threaded bolt is provided on the side of the test probe close to the displacement sensor, and a stop plate is provided at the end of the second tapered threaded bolt.

[0012] By adopting the above technical solution, the second tapered threaded bolt can further improve the installation stability of the test probe, prevent the test probe from loosening due to vibration or impact during the detection process, thereby ensuring the accuracy of the detection result. At the same time, the design of the stop plate can effectively limit the moving range of the test probe, and the plane of the stop plate is convenient for the displacement sensor to measure the distance, thereby improving the accuracy of the data.

[0013] Optionally, a vertical moving module is further included, which includes a vertical stroke driving cylinder, a body of the vertical stroke driving cylinder is fixedly connected to the vertical plate, and a moving end of the vertical stroke driving cylinder is fixedly connected to the mounting plate.

[0014] By adopting the above technical solution, the vertical moving module can realize the precise movement of the mounting plate and the inspection module thereon in the vertical direction, ensuring that the test probe can perform comprehensive inspection of the differential welding seam at different heights, thereby improving the inspection range and accuracy.

[0015] Optionally, a vertical ball bearing guide rail is further included, wherein the vertical ball bearing guide rail has a vertical sliding block portion and a vertical sliding rail portion, wherein the vertical sliding rail portion is fixedly connected to the vertical plate, and the vertical sliding block portion is fixedly connected to the mounting plate.

[0016] By adopting the above technical solution, the vertical ball bearing guide rail can improve the movement accuracy and stability of the mounting plate in the vertical direction, thereby ensuring the accuracy and stability of the position of the inspection module during the inspection process, thereby improving the reliability of the inspection results.

[0017] Optionally, a positioning head for cooperating with the differential is provided at the bottom of the mounting plate.

[0018] By adopting the above technical solution, the setting of the positioning head enables the detection device to be more accurately aligned with the differential, ensuring that the test probe can accurately contact the welding seam on the differential, reducing misjudgment caused by position deviation, and ensuring the reliability of the detection results.

[0019] Optionally, the differential mounting shaft is connected to the base via a rotating cylinder, the rotating cylinder is coaxially arranged with the differential mounting shaft, and the rotating cylinder is used to drive the differential mounting shaft to rotate around its own axis.

[0020] By adopting the above technical solution, the differential mounting shaft can be rotated around its own axis by the rotary cylinder. This allows the position of the differential to be automatically adjusted during the detection process, thereby ensuring that welding seams at all angles can be fully detected, improving the comprehensiveness and accuracy of the detection. At the same time, the rotary cylinder is coaxially arranged with the differential mounting shaft, and the differential is positioned by the positioning head, ensuring stability and reliability during the rotation process and avoiding detection errors caused by eccentricity.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the horizontal slider cylinder and displacement sensor, the precise movement and position feedback of the test probe in the horizontal direction are realized, which improves the detection accuracy and stability; 2. There are three inspection modules, which are arranged at intervals around the central axis of the differential mounting shaft, so that the detection range is wider, and all parts of the weld can be fully covered, thus improving the reliability and integrity of the detection; 3. The movable mounting block is provided with a mounting guide and a fastening hole, and the test probe is fixed by the first tapered thread bolt and the second tapered thread bolt, which ensures the stability and convenience of replacement of the test probe and improves the adaptability and maintenance convenience of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a detection device for visual inspection of welding seams of an automobile differential assembly line provided in an embodiment of the present application.

[0023] Figure 2 It is a top view of the inspection module and the mounting plate provided in the embodiment of the present application.

[0024] Figure 3 It is a schematic diagram of the structure of the inspection module provided in the embodiment of the present application.

[0025] Explanation of the reference numerals: 1-base; 2-vertical plate; 3-mounting plate; 4-inspection module; 401-test probe; 402-horizontal slider cylinder; 403-horizontal ball bearing guide rail; 4031-horizontal slider portion; 4032-horizontal slide rail portion; 404-static mounting block; 405-dynamic mounting block; 4051-mounting guide tube; 4052-fastening hole; 406-displacement sensor; 407-guide sleeve; 408-first tapered thread bolt; 409-second tapered thread bolt; 4010-stop plate; 5-differential mounting shaft; 6-vertical stroke drive cylinder; 7-vertical ball bearing guide rail; 701-vertical slider portion; 702-vertical slide rail portion; 8-positioning head; 9-rotating cylinder. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-3 This application is described in further detail.

[0027] The embodiment of the present application discloses a detection device for visual inspection of welding seams of an automobile differential assembly line.

[0028] like Figure 1-Figure 3As shown, the detection device for the appearance inspection of the welding seam of the automobile differential assembly line includes a base 1; a mounting plate 3, the mounting plate 3 is connected to the base 1 through a vertical plate 2; an inspection module 4, the inspection module 4 is arranged below the mounting plate 3, and the inspection module 4 includes a test probe 401, a horizontal slider cylinder 402, a horizontal ball bearing guide rail 403, a static mounting block 404, a dynamic mounting block 405 and a displacement sensor 406, the horizontal ball bearing guide rail 403 has a horizontal slider part 4031 and a horizontal slide rail part 4032, the mounting plate 3, the body of the horizontal slider cylinder 402, the horizontal slider part 4031 and the horizontal slide rail part 4032. 031, the static mounting block 404 and the displacement sensor 406 are fixedly connected in sequence along the vertical direction, the push rod of the horizontal slider cylinder 402, the horizontal slide rail part 4032 and the dynamic mounting block 405 are fixedly connected in sequence along the vertical direction, the test probe 401 is detachably connected to the dynamic mounting block 405 and the test probe 401 is arranged toward the side away from the static mounting block 404, and the probe of the displacement sensor 406 faces the dynamic mounting block 405 to measure the displacement distance of the test probe 401; the differential mounting shaft 5, the differential mounting shaft 5 is arranged on the base 1, and the differential mounting shaft 5 is used to install the differential.

[0029] The introduction of the horizontal ball bearing guide rail 403 in the design significantly improves the mobility and positioning accuracy of the inspection module 4. By setting the differential mounting shaft 5, the fast installation and removal of the differential is realized, thereby improving the operating efficiency of the assembly line. The synergy of the static mounting block 404 and the dynamic mounting block 405, as well as the detachable connection mechanism between the test probe 401 and the dynamic mounting block 405, ensure that the test probe 401 can be accurately moved to the position of the differential mounting shaft 5, that is, the position of the differential weld, under the drive of the horizontal slider cylinder 402. The displacement sensor 406 is used to accurately measure the displacement of the test probe 401, so as to accurately evaluate the quality of the weld.

[0030] To increase detection accuracy, the number of the inspection modules 4 can be three. The inspection modules are arranged at intervals around the central axis of the differential mounting shaft 5 , and the test probe 401 is arranged toward the central axis of the differential mounting shaft 5 .

[0031] The three inspection modules 4 can realize all-round inspection of the differential weld. These inspection modules 4 are arranged at intervals around the central axis of the differential mounting shaft 5, ensuring accurate evaluation of multiple positions of the weld. This layout not only improves the coverage of weld inspection, but also enhances the reliability and accuracy of the inspection results. At the same time, the parallel operation of multiple inspection modules 4 further improves the overall operating efficiency of the assembly line.

[0032] like Figure 3As shown, a mounting guide 4051 is provided on the movable mounting block 405, and the mounting guide 4051 is coaxially arranged with the probe of the displacement sensor 406. A guide sleeve 407 for mounting the test probe 401 is provided in the mounting guide 4051, and a fastening hole 4052 for mounting the first tapered thread bolt 408 is provided on one side of the mounting guide 4051. When the first tapered thread bolt 408 is installed in the fastening hole 4052, the guide sleeve 407 and the test probe 401 are relatively fixed. The mounting guide 4051 realizes the precise alignment of the test probe 401 and the probe of the displacement sensor 406, ensuring that the test probe 401 can accurately measure the defects of the differential welding seam during the detection process. By designing the guide sleeve 407 in the mounting guide 4051, the test probe 401 can be conveniently installed and replaced, thereby improving the flexibility and maintainability of the detection device. The first tapered threaded bolt 408 in the fastening hole 4052 ensures the stable fixation of the guide sleeve 407 and the test probe 401 after they are matched, effectively preventing displacement during the detection process, thereby ensuring the accuracy of the detection result.

[0033] In addition, a second tapered threaded bolt 409 is provided on the side of the mounting guide 4051 close to the displacement sensor 406 , a threaded hole for matching with the second tapered threaded bolt 409 is provided on the side of the test probe 401 close to the displacement sensor 406 , and a stop plate 4010 is provided at the end of the second tapered threaded bolt 409 .

[0034] The second tapered threaded bolt 409 can further improve the installation stability of the test probe 401, effectively preventing the test probe 401 from loosening due to vibration or impact during the detection process, and ensuring the accuracy of the detection result. In addition, the design of the stop plate 4010 limits the moving range of the test probe 401, and its planar structure provides a convenient distance measurement condition for the displacement sensor 406, thereby improving the accuracy of data collection.

[0035] like Figure 1 As shown, the detection device for the appearance inspection of the welding seam of the automobile differential assembly line also includes a vertical movement module, which includes a vertical stroke drive cylinder 6, the body of the vertical stroke drive cylinder 6 is fixedly connected to the vertical plate 2, and the moving end of the vertical stroke drive cylinder 6 is fixedly connected to the mounting plate 3. The vertical movement module can realize the precise movement of the mounting plate 3 and the inspection module 4 thereon in the vertical direction, ensuring that the test probe 401 can perform comprehensive inspection of the differential welding seam at different heights, thereby improving the detection range and accuracy.

[0036] In order to improve the stability of the mounting plate 3 in the vertical movement, the detection device for the appearance inspection of the welding seam of the automobile differential assembly line also includes a vertical ball bearing guide rail 7, which has a vertical slider portion 701 and a vertical slide rail portion 702, the vertical slide rail portion 702 is fixedly connected to the vertical plate 2, and the vertical slider portion 701 is fixedly connected to the mounting plate 3. The vertical ball bearing guide rail 7 can improve the movement accuracy and stability of the mounting plate 3 in the vertical direction, thereby ensuring the accuracy and stability of the position of the inspection module 4 during the inspection process, thereby improving the reliability of the inspection result.

[0037] like Figure 1 As shown, in order to improve the positioning accuracy of the differential, a positioning head 8 for matching with the differential is provided at the bottom of the mounting plate 3. By accurately configuring the positioning head 8, the detection device can achieve high-precision alignment of the differential, ensuring that the test probe 401 can accurately contact the differential welding seam, thereby reducing the risk of misjudgment caused by positioning deviation and ensuring the reliability of the detection result.

[0038] On the basis of being equipped with a positioning head 8, the differential mounting shaft 5 is connected to the base 1 through a rotating cylinder 9, and the rotating cylinder 9 is coaxially arranged with the differential mounting shaft 5. The rotating cylinder 9 is used to drive the differential mounting shaft 5 to rotate around its own axis. The differential mounting shaft 5 can be rotated around its own axis by the rotating cylinder 9. This allows the position of the differential to be automatically adjusted during the detection process, thereby ensuring that the welding seams at all angles can be fully detected, thereby improving the comprehensiveness and accuracy of the detection. At the same time, the rotating cylinder 9 is coaxially arranged with the differential mounting shaft 5, and the differential is positioned by the positioning head 8, which ensures the stability and reliability during the rotation process and avoids the detection error caused by eccentricity.

[0039] The implementation principle of the detection device for the appearance inspection of the welding seam of the automobile differential assembly line in the embodiment of the present application is as follows: The working process of the detection device for the appearance inspection of the welding seam of the automobile differential assembly line is as follows: The device includes a base 1, a mounting plate 3, an inspection module 4, a differential mounting shaft 5, a vertical movement module, a vertical ball bearing guide rail 7 and a positioning head 8. The inspection module 4 is arranged below the mounting plate 3, and includes a test probe 401, a horizontal slider cylinder 402, a horizontal ball bearing guide rail 403, a static mounting block 404, a dynamic mounting block 405 and a displacement sensor 406. The horizontal ball bearing guide rail 403 has a horizontal slider part 4031 and a horizontal slide rail part 4032, and the mounting plate 3, the body of the horizontal slider cylinder 402, the horizontal slider part 4031, the static mounting block 404 and the displacement sensor 406 are fixedly connected in sequence along the vertical direction. The push rod of the horizontal slider cylinder 402, the horizontal slide rail part 4032 and the dynamic mounting block 405 are fixedly connected in sequence along the vertical direction. The test probe 401 is detachably connected to the dynamic mounting block 405 and is arranged toward the side away from the static mounting block 404. The probe of the displacement sensor 406 is oriented toward the dynamic mounting block 405 to measure the displacement distance of the test probe 401. The differential mounting shaft 5 is arranged on the base 1 for mounting the differential. By setting the differential mounting shaft 5, the rapid installation and removal of the differential is realized, and the operation efficiency of the assembly line is improved. The synergistic effect of the static mounting block 404 and the dynamic mounting block 405, and the detachable connection mechanism of the test probe 401 and the dynamic mounting block 405 ensure that the test probe 401 can be accurately moved to the position of the differential mounting shaft 5, that is, the position of the differential weld, under the drive of the horizontal slider cylinder 402. The displacement of the test probe 401 is accurately measured by the displacement sensor 406, so as to accurately evaluate the quality of the weld. The number of detection modules can be three, which are arranged at intervals around the central axis direction of the differential mounting shaft 5, and the test probe 401 is arranged toward the central axis direction of the differential mounting shaft 5, so as to realize all-round detection of the differential weld. A mounting guide tube 4051 is provided on the movable mounting block 405, which is coaxially arranged with the probe of the displacement sensor 406, and a guide sleeve 407 is provided in the mounting guide tube 4051 for installing the test probe 401. A fastening hole 4052 is provided on one side of the mounting guide tube 4051 for installing a first tapered thread bolt 408 to ensure accurate alignment of the test probe 401 with the probe of the displacement sensor 406. A second tapered thread bolt 409 is also provided on the side of the mounting guide tube 4051 close to the displacement sensor 406, and a threaded hole is provided on the side of the test probe 401 close to the displacement sensor 406, and a stop plate 4010 is provided at the end of the second tapered thread bolt 409 to further improve the installation stability of the test probe 401. The vertical movement module includes a vertical stroke driving cylinder 6 to realize the precise vertical movement of the mounting plate 3 and the inspection module 4 thereon. The vertical ball bearing guide rail 7 improves the movement accuracy and stability of the mounting plate 3 in the vertical direction.A positioning head 8 is provided at the bottom of the mounting plate 3 to cooperate with the differential to achieve high-precision alignment. The differential mounting shaft 5 is connected to the base 1 through a rotary cylinder 9, which is used to drive the differential mounting shaft 5 to rotate around its own axis to automatically adjust the position of the differential to ensure that welding seams at all angles can be fully detected.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A detection device for visual inspection of welding seams of automobile differential assembly lines, characterized in that: include: Base (1); A mounting plate (3), wherein the mounting plate (3) is connected to the base (1) via a vertical plate (2); The inspection module (4) is arranged below the mounting plate (3), and the inspection module (4) comprises a test probe (401), a horizontal slider cylinder (402), a horizontal ball bearing guide rail (403), a static mounting block (404), a dynamic mounting block (405) and a displacement sensor (406). The horizontal ball bearing guide rail (403) comprises a horizontal slider portion (4031) and a horizontal slide rail portion (4032). The mounting plate (3), the body of the horizontal slider cylinder (402), the horizontal slider portion (4031), the static mounting block (404), the dynamic mounting block (405) and the displacement sensor (406). The block (404) and the displacement sensor (406) are fixedly connected in sequence along the vertical direction, the push rod of the horizontal slider cylinder (402), the horizontal slide rail portion (4032) and the movable mounting block (405) are fixedly connected in sequence along the vertical direction, the test probe (401) is detachably connected to the movable mounting block (405) and the test probe (401) is arranged toward a side away from the static mounting block (404), and the probe of the displacement sensor (406) is facing the movable mounting block (405) to measure the displacement distance of the test probe (401); A differential mounting shaft (5), wherein the differential mounting shaft (5) is arranged on the base (1), and the differential mounting shaft (5) is used for mounting a differential.

2. The detection device for visual inspection of welding seams of automobile differential assembly lines according to claim 1 is characterized in that: The number of the inspection modules (4) is three, the detection modules are arranged at intervals around the central axis direction of the differential mounting shaft (5), and the test probe (401) is arranged towards the central axis direction of the differential mounting shaft (5).

3. The detection device for visual inspection of welding seams of automobile differential assembly lines according to claim 1, characterized in that: The movable mounting block (405) is provided with a mounting guide tube (4051), the mounting guide tube (4051) is coaxially arranged with the probe of the displacement sensor (406), a guide sleeve (407) for mounting the test probe (401) is provided in the mounting guide tube (4051), a fastening hole (4052) for mounting a first tapered thread bolt (408) is provided on one side of the mounting guide tube (4051), and when the first tapered thread bolt (408) is installed in the fastening hole (4052), the guide sleeve (407) and the test probe (401) are relatively fixed.

4. The detection device for visual inspection of welding seams of automobile differential assembly lines according to claim 3 is characterized in that: A second tapered threaded bolt (409) is also provided on the side of the mounting conduit (4051) close to the displacement sensor (406), a threaded hole for matching with the second tapered threaded bolt (409) is provided on the side of the test probe (401) close to the displacement sensor (406), and a stop plate (4010) is provided at the end of the second tapered threaded bolt (409).

5. The detection device for the appearance inspection of the welding seam of the automobile differential assembly line according to claim 1 is characterized in that: It also comprises a vertical stroke driving cylinder (6), the body of the vertical stroke driving cylinder (6) is fixedly connected to the vertical plate (2), and the moving end of the vertical stroke driving cylinder (6) is fixedly connected to the mounting plate (3).

6. The detection device for visual inspection of welding seams of automobile differential assembly lines according to claim 5, characterized in that: It also includes a vertical ball bearing guide rail (7), the vertical ball bearing guide rail (7) having a vertical slide portion (701) and a vertical slide rail portion (702), the vertical slide rail portion (702) being fixedly connected to the vertical plate (2), and the vertical slide portion (701) being fixedly connected to the mounting plate (3).

7. The detection device for visual inspection of welding seams of automobile differential assembly lines according to claim 5, characterized in that: A positioning head (8) for cooperating with the differential is provided at the bottom of the mounting plate (3).

8. The detection device for visual inspection of welding seams of automobile differential assembly lines according to claim 1, characterized in that: The differential mounting shaft (5) is connected to the base (1) via a rotating cylinder (9); the rotating cylinder (9) is coaxially arranged with the differential mounting shaft (5); and the rotating cylinder (9) is used to drive the differential mounting shaft (5) to rotate around its own axis.

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