Vehicle metal part welding seam detection equipment and detection method thereof

Abstract

The invention relates to the technical field of welding seam detection equipment, in particular to vehicle metal part welding seam detection equipment and a detection method thereof. Comprising four arc-shaped mounting plates, arc-shaped threaded plates are arranged on the arc-shaped mounting plates, second arc-shaped threaded plates are arranged on the arc-shaped threaded plates, fixing frames are further arranged on the arc-shaped threaded plates, rotating shafts are arranged on the fixing frames, and transverse mounting blocks and clamping plates are arranged on the outer walls of the rotating shafts. According to the pipe socket fillet weld phased array detection equipment, the position of the arc-shaped rod is limited through the installed L-shaped shifting plate, when a rolling brush does not finish smearing of a coupling agent on the surface of a pipeline, a probe does not make contact with the surface of the pipeline, and therefore the detection efficiency is improved. And after a circle of coupling agent is smeared on the surface of the pipeline through the rolling brush, the L-shaped shifting plate can rotate through blocking of the steel belt, and the probe automatically moves downwards to make contact with the steel belt smeared with the coupling agent.

Description

Technical Field

[0001] The present invention relates to the technical field of weld detection equipment, and particularly to a weld detection equipment for vehicle metal components and a detection method thereof. Background Art

[0002] After the welding installation of various pipelines is completed, it is often necessary to use weld detection equipment to detect each welded part of the pipeline (such as the welding between adjacent pipelines and the welding between the pipeline and the support base) to check whether the weld welding meets the standards.

[0003] Some existing weld detection equipment uses phased array ultrasonic detection technology for detection. By controlling the probe on the weld detection equipment to fit the pipeline and face the weld for detection, in order to reduce the errors caused during the detection process, it is often necessary for workers to apply a coupling agent on the surface of the pipeline to facilitate the movement of the probe on the pipeline surface. Since the coupling agent is applied manually, it is impossible to accurately apply the coupling agent along the movement path of the probe, which not only easily causes waste of the coupling agent, but even leads to errors in the detection results because the coupling agent is not fully applied along the movement path of the probe, and thus improvement is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a weld detection equipment for vehicle metal components and a detection method thereof to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A weld detection equipment for vehicle metal components includes four arc-shaped mounting plates. Arc-shaped threaded plates are provided on the arc-shaped mounting plates. A second arc-shaped threaded plate is arranged on the arc-shaped threaded plate. A fixing frame is also arranged on the arc-shaped threaded plate. A rotating shaft is arranged on the fixing frame. A horizontal mounting block and a clamping plate are arranged on the outer wall of the rotating shaft. A sliding groove is arranged on the outer wall of the arc-shaped mounting plate. A detection component is slidably mounted in one of the sliding grooves. A toothed plate is movably attached to the outer wall of the arc-shaped mounting plate. A driving gear is movably attached to the outer wall of one of the toothed plates. A limiting component is arranged at the bottom end of one of the arc-shaped mounting plates.

[0006] The limiting component includes a vertical rod. A telescopic rod is arranged at the bottom end of the vertical rod. A mounting block is installed at the bottom end of the telescopic rod. An installation groove is arranged at the bottom end of the mounting block. A movable plate is arranged in the installation groove. Winding shafts are arranged at the bottom ends of the movable plate and the mounting block, and a steel belt is connected between the two winding shafts.

[0007] Two spring plungers are arranged at the part of the movable plate located in the installation groove. A number of arc-shaped grooves matching the spring plungers are arranged on the inner wall of the installation groove.

[0008] The detection component includes a slide plate and a slider matching the slide groove, the slide plate is provided with a mounting frame, the mounting frame is provided with an operation screen, the slide plate is provided with a vertical plate, the vertical plate is provided with a lifting plate, the bottom end of the lifting plate is connected to a horizontal plate, the bottom end of the horizontal plate is provided with an extension plate, the extension plate is provided with an arc plate, the arc plate is provided with a smearing component and a fixing plate, the fixing plate is provided with a groove, and a pressure plate is slidably installed in the groove, and the top end of the pressure plate is connected to the fixing plate by an extrusion spring, and the bottom end of the pressure plate is provided with a probe.

[0009] The arc-shaped plate is provided with a fixed block and a fixed rod, the fixed block is provided with a cross bar, a turntable is provided on the outer wall of the cross bar, an L-shaped toggle block and a pry plate are provided on the outer wall of the turntable, a linkage plate is provided on the outer wall of the fixed rod, and a fitting plate is provided on the linkage plate.

[0010] The smearing assembly includes a U-shaped frame, a liquid storage tank is arranged on the U-shaped frame, the liquid storage tank and the U-shaped frame are connected by a reset spring, a roller brush is arranged at the bottom end of the liquid storage tank, a limiting plate is arranged at the top end of the liquid storage tank, a docking vertical plate is arranged at the top end of the limiting plate, and an arc rod is fixedly installed on the docking vertical plate.

[0011] The vertical plate is provided with a lifting groove, and the width of the lifting groove is the same as the width of the lifting plate, and the top of the lifting plate is connected to the inner wall of the lifting groove on the vertical plate through a connecting spring.

[0012] The bottom end of the horizontal plate is provided with a groove, and the inner wall of the groove is provided with an anti-slip groove, a connecting block matching it is provided in the anti-slip groove, and the connecting block is fixedly connected to the extension plate, and the extension plate is connected to the inner wall of the groove on the horizontal plate through a docking spring.

[0013] The bottom end of the arc-shaped mounting plate is provided with a movable groove, and the shape and size of the movable groove are the same as those of the skateboard.

[0014] A detection method for a vehicle metal component weld detection device, the method comprising the following steps:

[0015] Step 1: Assemble the four arc-shaped mounting plates together to form a whole, control the second arc-shaped threaded plate to rotate upward on the outer wall of the arc-shaped threaded plate, so that the second arc-shaped threaded plate pushes the horizontal mounting block to rotate upward through the rotating shaft, so that the clamping plate clamps the outer wall of the vertical pipe, fixes the position of the arc-shaped mounting plate, and then pushes the lifting plate downward through the connecting spring, and pushes the extension plate to move through the docking spring, so that the arc-shaped plate fits the outer wall of the pipe. At this time, the roller brush fits the outer wall of the horizontal pipe and the probe does not touch the outer wall of the pipe, and the L-shaped toggle block is moved to the same vertical height as the steel belt;

[0016] Step 2: Drive the toothed plate, slider, and slide plate to rotate by controlling the driving gear, so that the roller brush applies the coupling agent to the outer wall of the pipeline. During the application process, control the telescopic rod to move downward so that the steel belt and the bottom end of the short head part of the L-shaped toggle block are on the same horizontal line;

[0017] Step 3: After the roller brush moves one circle on the outer wall of the pipeline, the L-shaped toggle block touches the steel belt. The L-shaped toggle block drives the turntable to rotate. The pry bar located on the turntable drives the linkage plate and the fitting plate to rotate around the fixed rod, so that the linkage plate disconnects the contact with the probe. Then, the pressure plate and the probe can be pushed downward by squeezing the spring, so that the bottom end of the probe fits the outer wall of the pipeline coated with the coupling agent. And because the L-shaped toggle block rotates and disconnects the contact with the arc-shaped rod, the return spring will contract upward, driving the liquid storage tank and the roller brush to move upward, so that the roller brush disconnects the contact with the pipeline. Then, by controlling the driving gear to rotate, the probe can be driven to move on the outer wall of the pipeline coated with the coupling agent, and the inspection of the pipe socket weld part can be started.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In the present invention, the position of the arc-shaped rod is restricted by the installed L-shaped toggle plate. When the roller brush has not completed the application of the coupling agent on the surface of the pipeline, the probe will not contact the surface of the pipeline. And after the roller brush completes one circle of application of the coupling agent on the surface of the pipeline, the L-shaped toggle plate can be rotated through the blockage of the steel belt, so that the probe automatically moves downward to contact the steel belt coated with the coupling agent.

[0020] By fitting the spring plunger into the arc-shaped grooves at different positions, it is convenient to adjust the position of the movable plate according to the diameter size of the pipeline so that the movable plate fits the outer wall of the pipeline, and the position of the movable plate can be fixed to prevent the steel belt from not being on the moving track of the L-shaped toggle block.

[0021] Through the contraction of the return spring, after the L-shaped toggle plate disconnects the contact with the arc-shaped rod, the liquid storage tank and the roller brush can be pulled upward to disconnect the contact with the pipeline, avoiding errors caused by excessive application of the coupling agent reaching the probe to detect the weld. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the partial structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the limiting component of the present invention.

[0025] Figure 4 It is Figure 3 The enlarged schematic diagram of part A of

[0026] Figure 5 It is a schematic diagram of the structure of the detection component of the present invention.

[0027] Figure 6 It is a schematic diagram of the local structure of the detection component of the present invention.

[0028] Figure 7 for Figure 5 An enlarged schematic diagram of point B.

[0029] Figure 8 for Figure 7 Flat view.

[0030] Figure 9 for Figure 7 Schematic diagram of the decomposition.

[0031] Figure 10 for Figure 9 Enlarged schematic diagram of point C.

[0032] Figure 11 It is a schematic diagram of the structure of the coating component of the present invention.

[0033] In the figure: 1, arc-shaped mounting plate; 2, arc-shaped threaded plate; 3, second arc-shaped threaded plate; 4, fixed frame; 5, rotating shaft; 6, horizontal mounting block; 7, clamping plate; 8, slide groove; 9, detection component; 10, tooth plate; 11, driving gear; 12, limit assembly; 13, vertical pole; 14, telescopic rod; 15, mounting block; 16, mounting groove; 17, movable plate; 18, spring plunger; 19, arc-shaped groove; 20, winding shaft; 21, steel belt; 22, slide plate; 23, mounting frame; 24, operation screen; 25, slider; 26, vertical plate; 2 7. Lifting plate; 28. Connecting spring; 29. ​​Horizontal plate; 30. Extension plate; 31. Docking spring; 32. Arc plate; 33. Fixed plate; 34. Pressing plate; 35. Extrusion spring; 36. Probe; 37. Application assembly; 38. Fixed block; 39. Cross bar; 40. Turntable; 41. L-shaped toggle block; 42. Pry plate; 43. Arc rod; 44. Fixed rod; 45. Laminating plate; 46. Linkage plate; 47. U-shaped frame; 48. Liquid storage tank; 49. Roller brush; 50. Reset spring; 51. Limit plate; 52. Docking vertical plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 10, the present invention provides a technical solution: a vehicle metal component weld detection device, as shown in Figures 1 - 2 , which includes four arc-shaped mounting plates 1. Arc-shaped threaded plates 2 are provided on the arc-shaped mounting plates 1. A second arc-shaped threaded plate 3 is arranged on the arc-shaped threaded plate 2. Clamping blocks are provided on the front end faces of the arc-shaped mounting plates 1, and clamping grooves matching the clamping blocks are provided on their back end faces. By inserting the clamping block on one arc-shaped mounting plate 1 into the clamping groove on another arc-shaped mounting plate 1, adjacent arc-shaped mounting plates 1 can be assembled together, and adjacent arc-shaped threaded plates 2, second arc-shaped threaded plates 3, and toothed plates 10 are all connected into a whole through this connection method. Moreover, mutually matching threads are provided on the sides of the arc-shaped threaded plate 2 and the second arc-shaped threaded plate 3 that are close to each other, which is convenient for controlling the up-and-down movement of the second arc-shaped threaded plate 3 during the rotation on the outer wall of the arc-shaped threaded plate 2. A fixing frame 4 is arranged on the arc-shaped threaded plate 2. The second arc-shaped threaded plate 3 is located on the outer wall of the arc-shaped threaded plate 2. The fixing frame 4 is fixedly installed at the top of the arc-shaped threaded plate 2. A rotating shaft 5 is arranged on the fixing frame 4. The rotating shaft 5 is rotatably connected to the fixing frame 4. Cross-mounted blocks 6 and clamping plates 7 are arranged on the outer wall of the rotating shaft 5. And the cross-mounted block 6 on the rotating shaft 5 is fixedly installed on the side close to the second arc-shaped threaded plate 3. The clamping plate 7 is fixedly installed at the top of the rotating shaft 5. The bottom end of the cross-mounted block 6 is movably attached to the top end of the second arc-shaped threaded plate 3. During the upward movement of the second arc-shaped threaded plate 3, the cross-mounted block 6 can be driven to move upward, so that the clamping plate 7 fits the outer wall of the pipeline, fixing the position of the arc-shaped mounting plate 1, which is convenient for the later use of the detection component 9 to make a circular motion on the outer wall of the pipeline. A sliding groove 8 is arranged on the outer wall of one arc-shaped mounting plate 1. A detection component 9 is slidably installed in the sliding groove 8. A toothed plate 10 is movably attached to the outer wall of the arc-shaped mounting plate 1. A driving gear 11 is movably attached to the outer wall of one toothed plate 10. The driving gear 11 is composed of a rotating motor and a toothed disc. And a support plate is arranged at the bottom end of the rotating motor, and the support plate is fixed on the outer wall of the arc-shaped mounting plate 1. The toothed disc is sleeved on the outer wall of the rotating motor. And a number of mutually meshing teeth are provided on the outer walls of the toothed disc and the toothed plate 10, which is convenient for driving the toothed plate 10 to rotate on the outer wall of the arc-shaped mounting plate 1 during the rotation of the driving gear 11. A limiting component 12 is arranged at the bottom end of one arc-shaped mounting plate 1.

[0036] Please refer to Figures 3 - 4The limiting assembly 12 includes a vertical rod 13, the top of the vertical rod 13 is fixedly connected to the arc-shaped mounting plate 1 and is not on the movable track of the mounting frame 23 to avoid affecting the movement of the mounting frame 23. A telescopic rod 14 is arranged at the bottom end of the vertical rod 13, and a mounting block 15 is installed at the bottom end of the telescopic rod 14. A mounting groove 16 is arranged at the bottom end of the mounting block 15, and a movable plate 17 is movably installed in the mounting groove 16. A winding shaft 20 is arranged at the bottom end of the movable plate 17 and the mounting block 15, and the winding shaft 20 is rotatably connected to the movable plate 17 and the mounting block 15 through a volute spring to ensure that the steel belt 21 between the two winding shafts 20 can be in a taut state, and the two winding shafts 20 are connected through the steel belt 21, and the movable plate 17 is located at the mounting Two spring plungers 18 are provided in the groove 16, and a plurality of arc-shaped grooves 19 matching the spring plungers 18 are provided on the inner wall of the mounting groove 16. The spring plungers 18 are inserted into the arc-shaped grooves 19 at different positions, so that the position of the movable plate 17 can be adjusted according to the diameter of the pipeline so that the movable plate 17 fits the outer wall of the pipeline, and the position of the movable plate 17 can be fixed to prevent the steel belt 21 from not being on the active track of the L-shaped toggle block 41. A groove is provided at the bottom end of the vertical rod 13, and the telescopic rod 14 extends into the groove. The connection method between the telescopic rod 14 and the vertical rod 13 is the same as the connection method between the movable plate 17 and the mounting block 15, so that the telescopic rod 14 can be fixed at different heights for use.

[0037] See also Figures 5 - 11The detection component 9 includes a slide plate 22 and a slider 25 matching the slide groove 8. The bottom end of the slider 25 is fixedly connected to a tooth plate 10, so that the slider 25 can be driven to move in the slide groove 8 during the movement of the tooth plate 10. A movable groove is provided at the bottom end of the arc-shaped mounting plate 1, and the shape and size of the movable groove are the same as those of the slide plate 22. The slide plate 22 is slidably installed in the movable groove at the bottom end of the arc-shaped mounting plate 1. A mounting frame 23 is provided on the slide plate 22, and an operating screen 24 is provided on the mounting frame 23. The operating screen 24 has its own power supply, which is convenient for starting the operating screen 24 and the probe 36 through the power supply. A vertical plate 26 is provided on the slider 25, and the spacing between the vertical plate 26 and the arc-shaped mounting plate 1 is larger than the spacing between the outermost side of the driving gear 11 and the arc-shaped mounting plate 1. The vertical plate 26 is large, so as to prevent the driving gear 11 from affecting the movement of the vertical plate 26. A lifting plate 27 is arranged on the vertical plate 26. A lifting groove is arranged on the vertical plate 26, and the width of the lifting groove is the same as the width of the lifting plate 27. The top of the lifting plate 27 is connected to the inner wall of the lifting groove on the vertical plate 26 by a connecting spring 28, so that the lifting plate 27 can be pushed downward by the connecting spring 28, so that when the probe 36 is not detecting, the roller brush 49 can fit the outer wall of the pipeline, and the bottom end of the lifting plate 27 is connected with a horizontal plate 29, and an extension plate 30 is arranged at the bottom end of the horizontal plate 29. A groove is arranged at the bottom end of the horizontal plate 29, and the extension plate 30 is slidably installed in the groove at the bottom end of the horizontal plate 29, and an anti-slip groove is arranged on the inner wall of the groove, and a connecting block matching it is arranged in the anti-slip groove, and the connecting block is fixed The extension plate 30 is connected, and the extension plate 30 is connected to the inner wall of the groove on the horizontal plate 29 through a docking spring 31. The docking spring 31 pushes the extension plate 30 to move, so that the arc plate 32 can fit the outer wall of the vertical pipeline, which is convenient for reducing the distance between the probe 36 and the pipeline weld. The extension plate 30 is provided with an arc plate 32, and the arc plate 32 is provided with a coating component 37 and a fixed plate 33. The fixed plate 33 is provided with a groove, and a pressure plate 34 is slidably installed in the groove. The top of the pressure plate 34 is connected to the fixed plate 33 through an extrusion spring 35. The bottom end of the pressure plate 34 is provided with a probe 36. The probe 36 is connected to the operating screen 24 through a line. The probe 36 and the operating screen 24 constitute a more common ultrasonic flaw detector in the prior art (such as a model Y UT2600 ultrasonic flaw detector), which will not be described in detail here. A fixed block 38 and a fixed rod 44 are arranged on the arc plate 32. A cross bar 39 is arranged on the fixed block 38. A turntable 40 is rotatably mounted on the outer wall of the cross bar 39. An L-shaped toggle block 41 and a pry plate 42 are arranged on the outer wall of the turntable 40. The pry plate 42 is located at the bottom end of the turntable 40, and the L-shaped toggle block 41 is located at the top end of the turntable 40. A linkage plate 46 is rotatably mounted on the outer wall of the fixed rod 44. The linkage plate 46 and the fixed rod 44, and the turntable 40 and the cross bar 39 are all connected by a torsion spring. The pressure plate 34, the linkage plate 46, and the pry plate 42 are in a balanced state when not affected by external force. A bonding plate 45 is arranged on the linkage plate 46. The bonding plate 45 is movably bonded to the top end of the pry plate 42.One side of the linkage plate 46 is movably fitted to the bottom end of the probe 36, and the smearing component 37 includes a U-shaped frame 47, which is fixedly mounted on the arc plate 32, and a liquid reservoir 48 is arranged on the U-shaped frame 47, and the coupling agent is added into the liquid reservoir 48, and two T-shaped grooves are arranged on the inner wall of the U-shaped frame 47, and T-shaped blocks are slidably mounted in the T-shaped grooves, and the T-shaped blocks are fixedly connected to the liquid reservoir 48 to form a whole, and the top of the T-shaped block is connected to the inner wall of the top of the T-shaped groove by a return spring 50, and an opening is arranged at the bottom end of the liquid reservoir 48, and a roller brush 49 is rotatably mounted in the opening, and a cotton sleeve is fixedly mounted on the surface of the roller brush 49, so that more coupling agent is on the surface of the cotton sleeve, and a limiting plate 51 is arranged at the top of the liquid reservoir 48, and a docking vertical plate 52 is arranged at the top of the limiting plate 51, and an arc rod 43 is fixedly mounted on the docking vertical plate 52, and the arc rod 43 is placed on the L-shaped toggle block At the bottom of the short head of 41, the limit plate 51 can limit the upward movement of the roller brush 49, so that the roller brush 49 can be close to the outer wall of the pipeline. When the roller brush 49 is driven by the driving gear 11, after the coupling agent is applied at the detection position of the outer wall of the pipeline, the L-shaped toggle block 41 will contact the steel belt 21. Because the steel belt 21 is in a fixed position, the L-shaped toggle block 41 will drive the turntable 40 to rotate. At this time, the pry plate 42 on the turntable 40 will pry the fitting plate 45 and the linkage plate 46 to rotate around the fixed rod 44, that is, one end of the linkage plate 46 moves downward to break the contact with the probe 36. At this time, the extrusion spring 35 pushes the probe 36 downward through the pressure plate 34, so that the probe 36 contacts the outer wall of the pipeline coated with the coupling agent. At this time, the reset spring 50 will shrink and move upward, pulling the roller brush 49 upward to break the contact with the pipeline, so as to avoid too much coupling agent reaching the probe 36 to detect the weld and cause errors.

[0038] A detection method for a vehicle metal component weld detection device, the method comprising the following steps:

[0039] Step 1: Assemble the four arc-shaped mounting plates 1 by docking to form a whole, push the lifting plate 27 downward through the connecting spring 28, and push the extension plate 30 to move through the docking spring 31, so that the arc plate 32 fits the outer wall of the pipeline, at this time, the roller brush 49 fits the pipeline and the probe 36 does not touch the pipeline;

[0040] Step 2: The driving gear 11 is controlled to drive the toothed plate 10, the slider 25 and the slide plate 22 to rotate, so that the roller brush 49 applies the coupling agent to the outer wall of the pipe. During the application process, the telescopic rod 14 is controlled to move downward so that the steel belt 21 and the bottom end of the short head of the L-shaped toggle block 41 are on the same horizontal line;

[0041] Step 3: After the rotary brush 49 moves one circle on the outer wall of the pipeline, the L-shaped toggle block 41 contacts the steel belt 21. The L-shaped toggle block 41 drives the turntable 40 to rotate. The pry plate 42 located on the turntable 40 drives the linkage plate 46 and the fitting plate 45 to rotate around the fixed rod 44, so that the contact between the linkage plate 46 and the probe 36 is disconnected. Then, the compression spring 35 can be pushed to drive the pressure plate 34 and the probe 36 to move downward, so that the bottom end of the probe 36 fits the outer wall of the pipeline coated with the coupling agent. Since the rotation of the L-shaped toggle block 41 disconnects the contact with the arc-shaped rod 43, the return spring 50 will contract upward, driving the liquid storage tank 48 and the rotary brush 49 to move upward, so that the rotary brush 49 disconnects the contact with the pipeline. Then, by controlling the rotation of the driving gear 11, the probe 36 can be driven to move on the outer wall of the pipeline coated with the coupling agent, and the detection of the pipe socket weld part can be started.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle metal component weld inspection device, comprising four arc-shaped mounting plates (1), characterized in that: The arc-shaped mounting plate (1) is provided with an arc-shaped threaded plate (2), the arc-shaped threaded plate (2) is provided with a second arc-shaped threaded plate (3), the arc-shaped threaded plate (2) is also provided with a fixing frame (4), the fixing frame (4) is provided with a rotating shaft (5), the outer wall of the rotating shaft (5) is provided with a transverse mounting block (6) and a clamping plate (7), the outer wall of the arc-shaped mounting plate (1) is provided with a sliding groove (8), a detection component (9) is slidably installed in one of the sliding grooves (8), a tooth plate (10) is movably fitted on the outer wall of the arc-shaped mounting plate (1), a driving gear (11) is movably fitted on the outer wall of one of the tooth plates (10), and a limiting component (12) is provided at the bottom end of one of the arc-shaped mounting plates (1).

2. The vehicle metal parts weld detection equipment according to claim 1, characterized in that: The limiting assembly (12) comprises a vertical rod (13), a telescopic rod (14) is arranged at the bottom end of the vertical rod (13), a mounting block (15) is installed at the bottom end of the telescopic rod (14), a mounting groove (16) is arranged at the bottom end of the mounting block (15), a movable plate (17) is arranged in the mounting groove (16), and a winding shaft (20) is arranged at the bottom end of the movable plate (17) and the mounting block (15), and the two winding shafts (20) are connected by a steel belt (21).

3. The vehicle metal parts weld detection equipment according to claim 2, characterized in that: Two spring plungers (18) are arranged at the portion of the movable plate (17) located in the installation groove (16), and a plurality of arc-shaped grooves (19) matching the spring plungers (18) are arranged on the inner wall of the installation groove (16).

4. The vehicle metal parts weld detection equipment according to claim 1, characterized in that: The detection component (9) comprises a slide plate (22) and a slide block (25) matched with the slide groove (8); the slide plate (22) is provided with a mounting frame (23); the mounting frame (23) is provided with an operation screen (24); the slide block (25) is provided with a vertical plate (26); the vertical plate (26) is provided with a lifting plate (27); the bottom end of the lifting plate (27) is connected with a horizontal plate (29); the bottom end of the horizontal plate (29) is provided with an extension plate (30); the extension plate (30) is provided with an arc plate (32); the arc plate (32) is provided with a smearing component (37) and a fixing plate (33); the fixing plate (33) is provided with a groove, and a pressure plate (34) is slidably installed in the groove; the top end of the pressure plate (34) is connected to the fixing plate (33) by a compression spring (35); the bottom end of the pressure plate (34) is provided with a probe (36).

5. The vehicle metal parts weld detection device according to claim 4, characterized in that: The arc-shaped plate (32) is provided with a fixing block (38) and a fixing rod (44); the fixing block (38) is provided with a cross rod (39); a rotating disk (40) is provided on the outer wall of the cross rod (39); an L-shaped toggle block (41) and a pry plate (42) are provided on the outer wall of the rotating disk (40); a linkage plate (46) is provided on the outer wall of the fixing rod (44); and a bonding plate (45) is provided on the linkage plate (46).

6. The vehicle metal parts weld detection equipment according to claim 4, characterized in that: The smearing assembly (37) comprises a U-shaped frame (47), a liquid storage tank (48) is arranged on the U-shaped frame (47), the liquid storage tank (48) and the U-shaped frame (47) are connected via a return spring (50), a rolling brush (49) is arranged at the bottom end of the liquid storage tank (48), a limiting plate (51) is arranged at the top end of the liquid storage tank (48), a docking vertical plate (52) is arranged at the top end of the limiting plate (51), and an arc rod (43) is fixedly installed on the docking vertical plate (52).

7. The vehicle metal parts weld detection equipment according to claim 4, characterized in that: The vertical plate (26) is provided with a lifting groove, and the width of the lifting groove is the same as the width of the lifting plate (27), and the top end of the lifting plate (27) is connected to the inner wall of the lifting groove on the vertical plate (26) via a connecting spring (28).

8. The vehicle metal parts weld detection equipment according to claim 4, characterized in that: The bottom end of the transverse plate (29) is provided with a groove, and the inner wall of the groove is provided with an anti-slip groove, a connecting block matching the anti-slip groove is provided in the anti-slip groove, and the connecting block is fixedly connected to the extension plate (30), and the extension plate (30) is connected to the inner wall of the groove on the transverse plate (29) through a docking spring (31).

9. The vehicle metal parts weld detection equipment according to claim 1, characterized in that: The bottom end of the arc-shaped mounting plate (1) is provided with a movable groove, and the shape and size of the movable groove are the same as the shape and size of the slide plate (22).

10. A control method for a vehicle metal component weld detection device, used for a vehicle metal component weld detection device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: Assemble the four arc-shaped mounting plates (1) together to form a whole, control the second arc-shaped threaded plate (3) to rotate upward on the outer wall of the arc-shaped threaded plate (2), so that the second arc-shaped threaded plate (3) pushes the horizontal mounting block (6) to rotate upward through the rotating shaft (5), fixes the position of the arc-shaped mounting plate (1), and then pushes the lifting plate (27) downward through the connecting spring (28), pushes the extension plate (30) to move through the docking spring (31), and moves the L-shaped toggle block (41) to the same vertical height as the steel belt (21); Step 2: Control the driving gear (11) to drive the toothed plate (10), the slider (25) and the slide plate (22) to rotate, so that the roller brush (49) moves, and synchronously control the telescopic rod (14) to move downward, so that the steel belt (21) and the bottom end of the short head of the L-shaped toggle block (41) are on the same horizontal line; Step 3: After the roller brush (49) moves one circle, the L-shaped toggle block (41) contacts the steel belt (21), and the L-shaped toggle block (41) drives the turntable (40) to rotate. The pry plate (42) located on the turntable (40) drives the linkage plate (46) and the bonding plate (45) to rotate around the fixed rod (44), so that the linkage plate (46) is disconnected from the contact with the probe (36), and the pressure plate (34) and the probe (36) are pushed downward by the extrusion spring (35). Because the L-shaped toggle block (41) rotates and disconnects the contact with the arc rod (43), the reset spring (50) will shrink upward, driving the liquid storage tank (48) and the roller brush (49) to move upward, and the driving gear (11) can be controlled to rotate to drive the probe (36) to start detection.

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