An arc detection device for automobile anti-collision beam production and a detection method thereof

Abstract

The application relates to the technical field of automobile anti-collision beams, in particular to an arc detection device for automobile anti-collision beam production and a detection method thereof, which comprises a detection seat, a taking mechanism arranged on the front side of the detection seat, and a detection frame arranged on the outer side of the detection seat. The detection seat, the taking mechanism and the detection frame are arranged, the flexible adjustment of the detection angle of the automobile anti-collision beam is realized, the placement posture of the anti-collision beam can be changed in real time according to the curvature change of different positions of the arch-shaped structure, the scanning detection requirements of multiple regions and multiple points can be met, the problem of the detection blind area existing in the traditional fixed-angle detection mode is effectively solved, the local arc deviation is avoided to be omitted, the integrity and accuracy of the arc detection result are greatly improved, meanwhile, the structure can automatically complete the clamping positioning and angle adjustment of the anti-collision beam, the clamping position does not need to be repeatedly adjusted manually, the detection operation process is simplified, and the detection efficiency is improved. The structure is aimed at the characteristics that the arcs of the arch-shaped anti-collision beam are unevenly distributed.

Description

Technical Field

[0001] This invention relates to the field of automotive anti-collision beam technology, and more specifically, to an arc detection device and method for automotive anti-collision beam production. Background Technology

[0002] Automotive crash beams are beam-like structures installed at the front and rear of a car frame. They are core components in a car's passive safety system that absorb and mitigate external impacts. The accuracy of their curvature directly affects the crash beam's load-bearing performance, its fit with the car body, and its overall protective effect. During the manufacturing process, crash beams are inevitably subject to curvature deviations due to factors such as stamping precision and welding deformation. If the deviation exceeds the allowable range, it will not only increase the difficulty of subsequent assembly but also significantly reduce the crash beam's impact-absorbing performance. Therefore, after the crash beams are produced, their curvature needs to be accurately tested to screen out unqualified products and ensure the overall quality of vehicle production.

[0003] According to patent document CN111765836A, a curvature detection device is disclosed. The device includes a positioning mechanism, a detection mechanism, and a processor. The detection mechanism is located on the periphery of the workpiece to be tested. By setting a first touch control and a second touch control on the positioning mechanism and the detection mechanism respectively, during the movement of the detection mechanism from the initial position to the detection position, the device determines whether the first and second touch controls can contact each other based on whether the second touch control is blocked by the curvature portion of the workpiece, thereby outputting a corresponding signal to determine whether the curvature portion of the workpiece is qualified. The second touch control contacts the first touch control after being tangent to the curved surface of the curvature portion of the workpiece. This device can be applied to the detection of the curvature portion of workpieces with irregular curved shapes. The entire curvature detection device has a simple structure and operation method, facilitating batch testing of workpieces.

[0004] Automotive crash beams are typically arched structures. When inspecting their curvature after manufacturing, a single scanner is usually used to scan the surface. During inspection, the crash beam is usually placed at a fixed angle at the inspection station, making it impossible to adjust the inspection angle according to changes in the arch curvature. It is also difficult to perform multi-point inspections at different curvature locations of the arched structure, which may easily miss local curvature deviations and affect the accuracy of the inspection results. Since the curvature of the crash beam's arched structure is not uniformly distributed, the surface orientation at different curvatures varies significantly. If only a single fixed angle is used for scanning, the scanner can only cover part of the area to be inspected, which may result in the actual shape of the local curved surface not being fully captured, leading to a significant potential for deviation in the inspection results. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an arc detection device and detection method for automobile anti-collision beam production, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An arc detection device for automobile anti-collision beam production includes a detection seat, a picking mechanism is provided on the front side of the detection seat, and a detection frame is provided on the outer side of the detection seat. The detection seat includes a base, with inverted L-shaped side plates fixedly connected to the left and right sides of the rear top of the base, and arc-shaped guide side plates fixedly connected to the front sides of the inner top of the two inverted L-shaped side plates. A support plate is fixedly connected to the top of the base, with inverted concave plates fixedly connected to the left and right sides of the top of the support plate. A second adapter block is fixedly connected to the middle of the outer side of the two inverted concave plates at the top of the support plate, and an adapter block is fixedly connected to the middle of the top of the two inverted concave plates. A columnar rotating rod is rotatably connected to the inner wall of the two adapter blocks. The picking mechanism includes a pusher, and a picking component is fixedly connected to the front side of the pusher; The pusher includes two outer disks, each outer disk has a rotating disk rotatably connected to its inner wall, each rotating disk has a columnar shaft fixedly connected to its inner center, each columnar shaft has a gear ring fixedly connected to its outer wall, each columnar shaft has a turntable fixedly connected to its inner end, and each turntable has a rotating connecting plate fixedly connected to its rear side of its outer wall.

[0007] As a further embodiment of the present invention: both ends of the columnar rotating rod are fixedly connected with fan-shaped teeth, the inner walls of the two second transition blocks are rotatably connected with columnar short rods, the inner ends of the two columnar short rods are fixedly connected with gears, the outer walls of the two gears mesh with the bottom of the two fan-shaped teeth, the outer ends of the two columnar short rods are fixedly connected with side rotating plates, and the middle of the rear side of the base is fixedly connected with an electric push rod.

[0008] As a further embodiment of the present invention: a push-pull block is fixedly connected to the rear end of the electric push rod, and slide rods are fixedly connected to the top of both sides of the push-pull block. The outer walls of the two slide rods are slidably connected to both sides of the top of the support plate. A rack rod is fixedly connected to the rear outer side of the two slide rods. The top of the two rack rods meshes with the outer walls of the two gears. A feeding support plate is fixedly connected to the left and right sides of the front side of the base. A feeding groove is opened on the front side of the top of the two feeding support plates. Rotating side rods are fixedly connected to the left and right sides of the outer wall of the columnar rotating rod. A baffle is fixedly connected to the rear outer side of the two rotating side rods. A columnar crossbar is fixedly connected to the front inner side of the two columnar short rods.

[0009] As a further embodiment of the present invention: the rear inner walls of the two rotating connecting plates are fixedly connected to both sides of the middle of the outer wall of the columnar crossbar; the front sides of the inner sides of the two outer discs are fixedly connected to side guide rails; the top of the inner sides of the two side guide rails are fixedly connected to electric vertical push rods; the bottom end of the electric vertical push rods is fixedly connected to lifting blocks; the left and right sides of the rear side of the lifting blocks are fixedly connected to vertical racks; the outer sides of the two vertical racks are slidably connected to the inner sides of the two side guide rails; the rear sides of the two vertical racks are engaged with the outer walls of the two gear rings; and the rear sides of the middle of the outer sides of the two rotating discs are fixedly connected to abutments.

[0010] As a further embodiment of the present invention: an L-shaped guide block is fixedly connected to the middle of the front side of each of the two outer disks; an L-shaped connecting block is fixedly connected to the top and bottom of each of the two L-shaped guide blocks; a guide tube is fixedly connected to the rear side of each of the left and right sets of L-shaped connecting blocks; an outer connecting plate is fixedly connected to the outer side of each of the left and right sets of guide tubes; a rear L-shaped connecting arm is fixedly connected to the middle of the rear side of the outer wall of each of the two outer connecting plates; the rear side of the outer side of each of the two rear L-shaped connecting arms is fixedly connected to the inner side of each of the two side rotating plates; and a horizontal L-shaped slide rod is slidably connected to the inner wall of each of the left and right sets of guide tubes.

[0011] As a further aspect of the present invention: an elliptical grooved sleeve is fitted on the outer side of each of the two abutments, and a columnar push-pull rod is fixedly connected to the front side of the outer side of each of the two elliptical grooved sleeves, with the front ends of the two columnar push-pull rods extending to the front side of the two L-shaped guide blocks.

[0012] As a further embodiment of the present invention: the picking member includes two vertical guide rail side plates, each of the two vertical guide rail side plates has a side block fixedly connected to the middle of its outer side, the rear of each of the two side blocks is fixedly connected to the front end of two columnar push-pull rods, the top and bottom of the inner side of each of the two vertical guide rail side plates have connecting side plates fixedly connected, the rear of the outer walls of the left and right sets of connecting side plates have outer side plates fixedly connected, the top and bottom of the inner side of each of the two outer side plates have concave plates fixedly connected, the middle of the inner side of each of the two vertical guide rail side plates has a front plate connecting block fixedly connected, the front of each of the two front plate connecting blocks has a front plate fixedly connected, the middle of the inner side of each of the two outer side plates has a guide side plate fixedly connected, the top and bottom of the inner side of each of the two guide side plates have guide rail rods fixedly connected, the inner side of each of the left and right sets of guide rail rods has C-shaped sliders slidably connected, the middle of the rear of each of the two C-shaped sliders has a columnar connecting rod fixedly connected, and the rear ends of each of the two columnar connecting rods are fixedly connected to the middle of the front of the inner side of each of the two outer plates.

[0013] As a further embodiment of the present invention: rotating rods are rotatably connected to both sides of the outer front side of the two C-shaped sliders; expanding and contracting connecting plates are rotatably connected to the side of the rotating rods away from the C-shaped sliders; expanding and contracting plates are fixedly connected to the outer sides of the expanding and contracting connecting plates; the rear sides of the expanding and contracting plates are slidably connected to both sides of the front side of the two vertical guide rail side plates; the front sides of the expanding and contracting plates are slidably connected to both sides of the rear side of the two front plates; and clamping plates are fixedly connected to the outer sides of the expanding and contracting plates.

[0014] As a further aspect of the present invention: the detection frame includes an inverted concave frame, and arc-shaped side plates are fixedly connected to the left and right sides of the top inner side of the inverted concave frame, and laser scanners are fixedly connected to the bottom sides of the two arc-shaped side plates in a circular array.

[0015] In addition, the present invention also relates to a detection method for an arc detection device used in the production of automotive anti-collision beams, comprising the following steps: Step 1: Debug each component of the device in advance to ensure that the electric vertical push rod, electric push rod and laser scanner can all operate normally. Preset the rotation angle threshold and laser scanning parameters according to the specifications of the anti-collision beam to be tested. Clear the detection data buffer area and reset the detection seat and picking mechanism to the initial standby position. Step 2: Place the car crash beam to be inspected at the preset gripping position on the front of the inspection seat. After confirming that the crash beam is not misaligned, start the device to begin inspection. Step 3: Start the electric vertical push rod, and drive the two clamping plates to clamp the two sides of the anti-collision beam to be tested according to the transmission process described above, so as to complete the automatic positioning and gripping of the anti-collision beam and avoid the anti-collision beam shifting during the testing process, which would affect the testing accuracy. Step 4: Start the electric push rod, and drive the picking mechanism and the fixed anti-collision beam to adjust the rotation angle according to the transmission process described above. At the same time, the sector tooth is driven to rotate by the gear, causing the baffle to rotate upward and lift up, forming an auxiliary support limit on the bottom of the anti-collision beam that has rotated to the detection angle, thereby improving the structural stability. Step 5: The electric push rod adjusts the anti-collision beam to the corresponding detection angle according to the preset parameters and then stops. It then starts all the laser scanners inside the inverted concave frame to scan and collect the corresponding curvature area of ​​the anti-collision beam at the current angle and obtain the arc data. Step Six: Following the preset detection process, control the electric push rod to gradually adjust the rotation angle of the anti-collision beam. Stop the action each time it is adjusted to a preset detection node, and repeat the scanning operation of Step Five until the scanning of all curvature positions of the entire area of ​​the anti-collision beam is completed to obtain complete arc data. Step 7: After scanning is completed, all the arc data collected by the laser scanner is transmitted to the terminal processing system, automatically stitched and integrated into a complete anti-collision beam arc model, compared with the preset standard arc parameters, and the test results are output to determine whether the arc of the anti-collision beam meets the production requirements. Step 8: After the test is completed, control the electric push rod to push the anti-collision beam back to the initial material picking angle, control the electric vertical push rod to operate in the opposite direction, so that the two clamping plates loosen their clamping on the anti-collision beam, remove the anti-collision beam that has been tested, reset the device to the initial standby state, and prepare for the next test.

[0016] The beneficial effects of this invention are as follows: This invention, by incorporating a detection seat, a pick-up mechanism, and a detection frame, enables flexible adjustment of the detection angle of automotive crash beams. It can adjust the placement of the crash beam in real time according to the curvature changes at different positions of the arched structure, adapting to the scanning and detection needs of multiple areas and points. This effectively solves the detection blind spot problem of traditional fixed-angle detection methods, avoiding the omission of local curvature deviations and significantly improving the completeness and accuracy of curvature detection results. Simultaneously, this structure can automatically complete the clamping, positioning, and angle adjustment of the crash beam, eliminating the need for repeated manual adjustments to the clamping position, simplifying the detection process, and improving the efficiency of the detection operation. Addressing the non-uniform distribution of curvature in arched crash beams, the multi-laser scanner combined with the angle-adjustable clamping structure can completely acquire the surface morphology information at different curvature positions, eliminating the potential for result deviations in traditional single-scanning methods and improving the stability and reliability of curvature detection operations. Furthermore, this detection structure has strong compatibility, adapting to the detection of automotive crash beams of different specifications and with different arch curvature parameters, without requiring customized fixed fixtures, expanding the applicability of the device, and meeting the curvature detection needs in different production scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional separation structure of the main body of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the detection seat of the present invention; Figure 4 This is a schematic diagram of the three-dimensional separation structure of the detection seat of the present invention; Figure 5 This is a three-dimensional structural diagram of the picking mechanism of the present invention; Figure 6 This is a schematic diagram of the three-dimensional separation structure of the picking mechanism of the present invention; Figure 7 This is a schematic diagram of the three-dimensional separation structure of the pusher component of the present invention; Figure 8This is a schematic diagram of the three-dimensional separation structure of the picking component of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point A in the middle; Figure 10 This is a three-dimensional structural diagram of the detection frame of the present invention.

[0018] In the diagram: 1. Detection seat; 11. Base; 12. Inverted L-shaped side plate; 13. Arc-shaped guide side plate; 14. Support plate; 15. Inverted concave plate; 16. Adapter block; 17. Columnar rotating rod; 18. Fan-shaped tooth; 19. Second adapter block; 110. Columnar short rod; 111. Gear; 112. Electric push rod; 113. Side rotating plate; 114. Push-pull block; 115. Slide rod; 116. Rack rod; 117. 1. Rotating side rod; 118. Baffle; 119. Feeding tray; 1110. Feeding tray groove; 1111. Columnar crossbar; 2. Picking mechanism; 21. Pushing component; 211. Outer plate; 212. Rotating disk; 213. Columnar shaft; 214. Gear ring; 215. Turntable; 216. Rotating connecting plate; 217. Side vertical guide rail; 218. Electric vertical push rod; 219. Lifting block; 2110. Vertical Rack; 2111, L-shaped guide block; 2112, L-shaped connecting block; 2113, guide tube; 2114, stop block; 2115, elliptical grooved sleeve block; 2116, columnar push-pull rod; 2117, horizontal L-shaped slide rod; 2118, outer connecting plate; 2119, rear L-shaped connecting arm; 22, pick-up part; 221, vertical guide rail side plate; 222, side block; 223, connecting side plate; 224, outer side plate 225. Concave plate; 226. Front plate connecting block; 227. Front plate; 228. Guide side plate; 229. Guide rail rod; 22110. Columnar connecting rod; 22111. C-shaped slider; 22112. Rotating rod; 22113. Expanding and contracting plate; 22114. Clamping plate; 22115. Expanding and contracting connecting plate; 3. Detection frame; 31. Inverted concave frame; 32. Arc-shaped side plate; 33. Laser scanner. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1-2 As shown, the present invention provides an arc detection device for automobile anti-collision beam production, including a detection seat 1, a picking mechanism 2 provided on the front side of the detection seat 1, and a detection frame 3 provided on the outer side of the detection seat 1.

[0021] like Figures 5-9As shown, the picking mechanism 2 includes a pushing member 21, with a picking member 22 fixedly connected to the front side of the pushing member 21. The pushing member 21 includes two outer disks 211, with a rotating disk 212 rotatably connected to the inner wall of each of the two outer disks 211. A columnar shaft 213 is fixedly connected to the middle of the inner side of each of the two rotating disks 212. A gear ring 214 is fixedly connected to the outer wall of each of the two columnar shafts 213. A turntable 215 is fixedly connected to the inner end of each of the two columnar shafts 213. A rotating connecting plate 216 is fixedly connected to the rear side of the outer wall of each of the two turntables 215. The rear inner walls of the two rotating connecting plates 216 are fixedly connected to both sides of the middle of the outer wall of the columnar crossbar 1111. Side guide rails 217 are fixedly connected to the front side of the inner side of each of the two outer disks 211. An electric vertical push rod 218 is fixedly connected to the top of the inner side of 17. A lifting block 219 is fixedly connected to the bottom of the electric vertical push rod 218. Vertical racks 2110 are fixedly connected to the left and right sides of the rear side of the lifting block 219. The outer sides of the two vertical racks 2110 are slidably connected to the inner sides of the two side vertical guide rails 217. The rear sides of the two vertical racks 2110 are engaged with the outer walls of the two gear rings 214. A stop block 2114 is fixedly connected to the rear side of the middle of the outer side of the two rotating disks 212. An L-shaped guide block 2111 is fixedly connected to the middle of the front side of the two outer disks 211. An L-shaped connecting block 2112 is fixedly connected to the top and bottom of the two L-shaped guide blocks 2111. A guide tube 2113 is fixedly connected to the rear side of the left and right sets of L-shaped connecting blocks 2112. Both the left and right sets of guide tubes 2113 are fixedly connected to outer connecting plates 2118. The middle of the rear side of the outer wall of each of the two outer connecting plates 2118 is fixedly connected to a rear L-shaped connecting arm 2119. The rear sides of the outer sides of the two rear L-shaped connecting arms 2119 are fixedly connected to the inner sides of the two side rotating plates 113. The inner walls of both the left and right sets of guide tubes 2113 are slidably connected to horizontal L-shaped sliding rods 2117. The outer sides of each of the two abutments 2114 are fitted with elliptical grooved sleeves 2115. The front sides of the outer sides of each of the two elliptical grooved sleeves 2115 are fixedly connected to columnar push-pull rods 2116. The front ends of each of the two columnar push-pull rods 2116 extend to the front sides of the two L-shaped guide blocks 2111. The take-up component 22 includes two vertical guide rail side plates 221. The outer sides of the two vertical guide rail side plates 221... Side blocks 222 are fixedly connected to the middle of each side. The rear sides of the two side blocks 222 are fixedly connected to the front ends of the two columnar push-pull rods 2116. Connecting side plates 223 are fixedly connected to the top and bottom of the inner sides of the two vertical guide rail side plates 221. Outer side plates 224 are fixedly connected to the rear of the outer walls of the left and right sets of connecting side plates 223. Concave plates 225 are fixedly connected to the top and bottom of the inner sides of the two outer side plates 224. Front plate connecting blocks 226 are fixedly connected to the middle of the inner sides of the two vertical guide rail side plates 221. Front plates 227 are fixedly connected to the front sides of the two front plate connecting blocks 226. Guide side plates 228 are fixedly connected to the middle of the inner sides of the two outer side plates 224. Guide rail rods 229 are fixedly connected to the top and bottom of the inner sides of the two guide side plates 228.Both sets of left and right guide rails 229 have C-shaped sliders 22111 slidably connected to their inner sides. Each C-shaped slider 22111 has a columnar connecting rod 22110 fixedly connected to its rear center. The rear ends of each columnar connecting rod 22110 are fixedly connected to the center of the inner front side of each outer disk 211. Rotating rods 22112 are rotatably connected to both sides of the outer front side of each C-shaped slider 22111. The left and right sets of rotating rods 22112 are located away from the C-shaped sliders 22111. Each side is rotatably connected to a retractable connecting plate 22115. Retractable plates 22113 are fixedly connected to the outer sides of both sets of retractable connecting plates 22115. The rear sides of both sets of retractable plates 22113 are slidably connected to the front sides of the two vertical guide rail side plates 221. The front sides of both sets of retractable plates 22113 are slidably connected to the rear sides of the two front plates 227. Clamping plates 22114 are fixedly connected to the outer sides of both sets of retractable plates 22113. When it is necessary to test the curvature of the car anti-collision beam, the anti-collision beam is first placed in front of the test seat 1. At this time, the electric vertical push rod 218 is activated, which drives the lifting block 219 to move downward along the side guide rail 217. The vertical racks 2110 fixed on both sides of the lifting block 219 move downward synchronously. Through the meshing transmission with the gear ring 214, the cylindrical shaft rod 213 and the rotating disk 212 rotate along the inner wall of the outer disk 211. During the rotation of the rotating disk 212, the abutment block 2114 fixed on its outer side will slide in the inner cavity of the elliptical groove block 2115 along the rotation trajectory, driving the elliptical groove block 2115 to push forward. Then, through the cylindrical push-pull rod 2116, the entire picking part 22 is pushed forward along the guide structure. As the entire pick-up piece 22 moves forward, the rear ends of the two columnar connecting rods 22110 are fixedly connected to the two outer plates 211. Therefore, the position of the C-shaped slider 22111 moves forward synchronously with the entire pick-up piece 22, causing the C-shaped slider 22111 to be pulled backward by the columnar connecting rods 22110. With the guidance and restriction of the guide rail rod 229, the rotating rod 22112 pushes the expansion and retraction connecting plate 22115 to move inward, causing the expansion and retraction plate 22113 to slide inward along the guide groove between the front plate 227 and the vertical guide rail side plate 221. Finally, the two clamping plates 22114 fit together and clamp the two sides of the anti-collision beam to be tested, completing the positioning and gripping of the anti-collision beam.

[0022] like Figure 3 , Figure 4 and Figure 10As shown, the testing base 1 includes a base 11. Inverted L-shaped side plates 12 are fixedly connected to the left and right sides of the rear top of the base 11. Arc-shaped guide side plates 13 are fixedly connected to the front sides of the inner top of the two inverted L-shaped side plates 12. A support plate 14 is fixedly connected to the top of the base 11. Inverted concave plates 15 are fixedly connected to the left and right sides of the top of the support plate 14. A second adapter block 19 is fixedly connected to the middle of the outer sides of the two inverted concave plates 15. A rotating... Connecting blocks 16, with columnar rotating rods 17 rotatably connected to the inner walls of the two connecting blocks 16. Sector-shaped teeth 18 are fixedly connected to both ends of the columnar rotating rods 17. Columnar short rods 110 are rotatably connected to the inner walls of the two second connecting blocks 19. Gears 111 are fixedly connected to the inner ends of the two columnar short rods 110. The outer walls of the two gears 111 mesh with the bottoms of the two sector-shaped teeth 18. Side rotating plates 113 are fixedly connected to the outer ends of the two columnar short rods 110. An electric pusher is fixedly connected to the middle of the rear side of the base 11. The rear end of the electric push rod 112 is fixedly connected to a push-pull block 114. Slide rods 115 are fixedly connected to the top of both sides of the push-pull block 114. The outer walls of the two slide rods 115 are slidably connected to the top sides of the support plate 14. A rack rod 116 is fixedly connected to the rear outer side of each slide rod 115. The tops of the two rack rods 116 mesh with the outer walls of two gears 111. Feeding support plates 119 are fixedly connected to the left and right sides of the front side of the base 11. The front of the two feeding support plates 119... The sides are provided with feeding trays 1110. Rotating side rods 117 are fixedly connected to the left and right sides of the outer wall of the columnar rotating rod 17. Baffles 118 are fixedly connected to the rear side of the outer side of the two rotating side rods 117. Columnar crossbars 1111 are fixedly connected to the front side of the inner side of the two columnar short rods 110. The detection frame 3 includes an inverted concave frame 31. Arc-shaped side plates 32 are fixedly connected to the left and right sides of the top inner side of the inverted concave frame 31. Laser scanners 33 are fixedly connected to the multiple sides of the bottom of the two arc-shaped side plates 32 in a ring array. After the grabbing is completed, the electric push rod 112 is activated to push the push-pull block 114 to move backward along the base 11. This causes the slide rods 115 fixed on the top of both sides of the push-pull block 114 to move backward in sync. The rack rod 116 on the outer rear side of the slide rod 115 also moves backward together. Through the meshing transmission with the outer wall of the gear 111, the columnar short rod 110 is driven to rotate along the inner wall of the second transition block 19. The rotation of the columnar short rod 110 will synchronously drive the side rotating plate 113 and the columnar crossbar 1111 to rotate. Then, by rotating the connecting plate 216, the entire grabbing mechanism 2, together with the grabbed and fixed anti-collision beam, is driven to adjust the angle along the rotation trajectory of the side rotating plate 113. During rotation, the electric push rod 112 can precisely control the displacement distance of the push-pull block 114 according to the preset detection process, thereby precisely controlling the rotation angle of the anti-collision beam. Combined with the laser scanner 33 arranged in multiple ring arrays inside the inverted concave frame 31, the laser scanner 33 can completely scan each curvature position of the arched anti-collision beam, without missing any local curvature information, ensuring the accuracy of the detection results. Simultaneously, when the two gears 111 rotate and mesh with the sector gear 18, they drive the columnar rotating rod 17 and the rotating side rod 117 to rotate along the inner wall of the adapter block 16. The baffle 118 on the outer rear side of the rotating side rod 117 rotates upwards synchronously. The bottom of the anti-collision beam, which is flipped to the rear to a vertical detection angle, forms a support limit to prevent the anti-collision beam from deflecting and swaying due to its own weight during the detection process with the rotation of the picking mechanism 2. This further improves the positional stability of the anti-collision beam during the arc detection process and ensures the accuracy of the arc data collected by the laser scanner 33. After the all-round scanning detection is completed, the electric push rod 112 drives the push-pull block 114 to reset, the picking mechanism 2 rotates in the opposite direction back to the initial position, and then drives the electric vertical push rod 218 to move upward and reset, so that the clamping plate 22114 releases the anti-collision beam, thus completing a single detection operation. After removing the anti-collision beam, the next workpiece to be inspected can be loaded and inspected.

[0023] In addition, the present invention also relates to a detection method for an arc detection device used in the production of automotive anti-collision beams, comprising the following steps: Step 1: Debug each component of the device in advance to ensure that the electric vertical push rod 218, electric push rod 112 and laser scanner 33 can all operate normally. Preset the rotation angle threshold and laser scanning parameters according to the specifications of the anti-collision beam to be tested. Clear the detection data buffer area and reset the detection seat 1 and the picking mechanism 2 to the initial standby position. Step 2: Place the car crash beam to be inspected at the preset gripping position on the front side of the inspection seat 1. After confirming that the crash beam is not misaligned, start the device to begin inspection. Step 3: Start the electric vertical push rod 218, and drive the two clamping plates 22114 to clamp the two sides of the anti-collision beam to be tested according to the transmission process described above, so as to complete the automatic positioning and gripping of the anti-collision beam and avoid the anti-collision beam from shifting during the testing process, which would affect the testing accuracy. Step 4: Start the electric push rod 112, and drive the picking mechanism 2 and the fixed anti-collision beam to adjust the rotation angle according to the transmission process described above. At the same time, the sector tooth 18 is driven to rotate by the gear 111, causing the baffle 118 to rotate upward and lift up, forming an auxiliary support limit on the bottom of the anti-collision beam that has rotated to the detection angle, thereby improving the structural stability. Step 5: The electric push rod 112 adjusts the anti-collision beam to the corresponding detection angle according to the preset parameters and then stops. It then starts all the laser scanners 33 inside the inverted concave frame 31 to scan and collect the corresponding curvature area of ​​the anti-collision beam at the current angle and obtain the arc data. Step Six: Following the preset detection process, control the electric push rod 112 to gradually adjust the rotation angle of the anti-collision beam. Stop the action each time it is adjusted to a preset detection node, and repeat the scanning operation of Step Five until the scanning of all curvature positions of the entire area of ​​the anti-collision beam is completed to obtain complete arc data. Step 7: After scanning, all the arc data collected by the laser scanner 33 is transmitted to the terminal processing system, automatically spliced ​​and integrated into a complete anti-collision beam arc model, compared with the preset standard arc parameters, and the test results are output to determine whether the arc of the anti-collision beam meets the production requirements. Step 8: After the test is completed, control the electric push rod 112 to push the anti-collision beam back to the initial material picking angle, control the electric vertical push rod 218 to operate in the opposite direction, so that the two clamping plates 22114 loosen their clamping on the anti-collision beam, remove the anti-collision beam that has been tested, reset the device to the initial standby state, and prepare for the next test.

[0024] The working principle of this invention is as follows: When it is necessary to test the curvature of the car anti-collision beam, the anti-collision beam is first placed in front of the test seat 1. At this time, the electric vertical push rod 218 is started, which drives the lifting block 219 to move downward along the side vertical guide rail 217. The vertical racks 2110 fixed on both sides of the lifting block 219 move downward synchronously. Through the meshing transmission with the gear ring 214, the columnar shaft rod 213 and the rotating disk 212 are driven to rotate along the inner wall of the outer disk 211. During the rotation of the rotating disk 212, the abutment block 2114 fixed on its outer side slides along the rotation trajectory in the inner cavity of the elliptical groove block 2115, causing the elliptical groove block 2115 to push forward. This, in turn, drives the entire picking component 22 forward along the guide structure via the columnar push-pull rod 2116. As the entire picking component 22 moves forward, the C-shaped slider 22111 moves forward synchronously with the entire picking component 22 because the rear ends of the two columnar connecting rods 22110 are fixedly connected to the two outer disks 211. This causes the C-shaped slider 22111 to be subjected to columnar... The connecting rod 22110 is pulled to move backward, cooperating with the guide rail rod 229 for guidance and restriction. The rotating rod 22112 pushes the expansion and retraction connecting plate 22115 to move inward, causing the expansion and retraction plate 22113 to slide inward along the guide groove between the front plate 227 and the vertical guide rail side plate 221. Finally, the two clamping plates 22114 are attached to and clamp the two sides of the anti-collision beam to be tested, completing the positioning and gripping of the anti-collision beam. After gripping, the electric push rod 112 is activated to push the push-pull block 114 to move backward along the base 11, driving the slide rod 1 fixed on the top of both sides of the push-pull block 114 to move backward. 15 moves backward synchronously, and the rack 116 on the outer rear side of the slide bar 115 also moves backward. Through meshing transmission with the outer wall of the gear 111, it drives the columnar short rod 110 to rotate along the inner wall of the second transition block 19. The rotation of the columnar short rod 110 will synchronously drive the side rotating plate 113 and the columnar crossbar 1111 to rotate. Then, through the rotation of the connecting plate 216, it drives the entire picking mechanism 2, together with the anti-collision beam that is grabbed and fixed, to adjust the angle along the rotation trajectory of the side rotating plate 113. During the rotation, the electric push rod 112 can accurately control the displacement distance of the push-pull block 114 according to the preset detection process, thereby accurately controlling the anti-collision beam. The rotation angle of the impact beam, in conjunction with the laser scanner 33 arranged in multiple ring arrays inside the inverted concave frame 31, allows the laser scanner 33 to completely scan each curvature position of the arched impact beam without missing any local curvature information, ensuring the accuracy of the detection results. Furthermore, when the two gears 111 rotate and mesh with the sector teeth 18, they drive the columnar rotating rod 17 and the rotating side rod 117 to rotate along the inner wall of the adapter block 16. The baffle 118 on the outer rear side of the rotating side rod 117 rotates upward synchronously and lifts up, forming a support limit on the bottom of the impact beam that has flipped to the vertical detection angle.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A curvature detection device for automobile anti-collision beam production, comprising a detection base (1), characterized in that: The front side of the detection seat (1) is provided with a picking mechanism (2), and the outside of the detection seat (1) is provided with a detection frame (3). The detection seat (1) includes a base (11), and inverted L-shaped side plates (12) are fixedly connected to the left and right sides of the rear top of the base (11). Arc-shaped guide side plates (13) are fixedly connected to the front side of the inner top of the two inverted L-shaped side plates (12). A support plate (14) is fixedly connected to the top of the base (11). Inverted concave plates (15) are fixedly connected to the left and right sides of the top of the support plate (14). A second adapter block (19) is fixedly connected to the middle of the outer side of the two inverted concave plates (15) at the top of the support plate (14). An adapter block (16) is fixedly connected to the middle of the top of the two inverted concave plates (15). A columnar rotating rod (17) is rotatably connected to the inner wall of the two adapter blocks (16). The picking mechanism (2) includes a pusher (21), and a picking member (22) is fixedly connected to the front side of the pusher (21). The pusher (21) includes two outer disks (211), and a rotating disk (212) is rotatably connected to the inner wall of each of the two outer disks (211). A columnar shaft (213) is fixedly connected to the middle of the inner side of each of the two rotating disks (212). A gear ring (214) is fixedly connected to the outer wall of each of the two columnar shafts (213). A turntable (215) is fixedly connected to the inner end of each of the two columnar shafts (213). A rotating connecting plate (216) is fixedly connected to the rear side of the outer wall of each of the two turntables (215).

2. The arc detection device for automobile anti-collision beam production according to claim 1, characterized in that: Both ends of the columnar rotating rod (17) are fixedly connected to fan-shaped teeth (18), the inner walls of the two second transition blocks (19) are rotatably connected to columnar short rods (110), the inner ends of the two columnar short rods (110) are fixedly connected to gears (111), the outer walls of the two gears (111) mesh with the bottom of the two fan-shaped teeth (18), the outer ends of the two columnar short rods (110) are fixedly connected to side rotating plates (113), and the middle of the rear side of the base (11) is fixedly connected to an electric push rod (112).

3. The arc detection device for automobile anti-collision beam production according to claim 2, characterized in that: The rear end of the electric push rod (112) is fixedly connected to a push-pull block (114). Slide rods (115) are fixedly connected to the top of both sides of the push-pull block (114). The outer walls of both slide rods (115) are slidably connected to both sides of the top of the support plate (14). A rack rod (116) is fixedly connected to the rear outer side of both slide rods (115). The tops of both rack rods (116) mesh with the outer walls of two gears (111). The base... (11) A feeding tray (119) is fixedly connected to both the left and right sides of the front side. A feeding tray groove (1110) is opened on the front side of the top of the two feeding trays (119). A rotating side rod (117) is fixedly connected to both the left and right sides of the outer wall of the columnar rotating rod (17). A baffle (118) is fixedly connected to the rear side of the outer side of the two rotating side rods (117). A columnar crossbar (1111) is fixedly connected to the front side of the inner side of the two columnar short rods (110).

4. The arc detection device for automobile anti-collision beam production according to claim 1, characterized in that: The rear inner walls of the two rotating connecting plates (216) are fixedly connected to the two sides of the middle part of the outer wall of the columnar crossbar (1111). The front sides of the inner sides of the two outer discs (211) are fixedly connected to the side guide rails (217). The top of the inner sides of the two side guide rails (217) are fixedly connected to the electric vertical push rod (218). The bottom end of the electric vertical push rod (218) is fixedly connected to the lifting block (219). The left and right sides of the rear side of the lifting block (219) are fixedly connected to the vertical rack (2110). The outer sides of the two vertical racks (2110) are slidably connected to the inner sides of the two side guide rails (217). The rear sides of the two vertical racks (2110) are meshed with the outer walls of the two gear rings (214). The rear sides of the middle part of the outer side of the two rotating discs (212) are fixedly connected to the stop block (2114).

5. The arc detection device for automobile anti-collision beam production according to claim 1, characterized in that: L-shaped guide blocks (2111) are fixedly connected to the middle of the front side of the two outer discs (211). L-shaped connecting blocks (2112) are fixedly connected to the top and bottom of the two L-shaped guide blocks (2111). Guide tubes (2113) are fixedly connected to the rear side of the two sets of L-shaped connecting blocks (2112). Outer connecting plates (2118) are fixedly connected to the outer side of the two sets of guide tubes (2113). Rear L-shaped connecting arms (2119) are fixedly connected to the middle of the rear side of the outer wall of the two outer connecting plates (2118). The rear side of the outer side of the two rear L-shaped connecting arms (2119) is fixedly connected to the inner side of the two side rotating plates (113). Horizontal L-shaped slide rods (2117) are slidably connected to the inner wall of the two sets of guide tubes (2113).

6. The arc detection device for automobile anti-collision beam production according to claim 4, characterized in that: The outer sides of the two abutment blocks (2114) are fitted with elliptical grooved sleeve blocks (2115), and the front sides of the outer sides of the two elliptical grooved sleeve blocks (2115) are fixedly connected with columnar push-pull rods (2116). The front ends of the two columnar push-pull rods (2116) extend to the front sides of the two L-shaped guide blocks (2111).

7. The arc detection device for automobile anti-collision beam production according to claim 1, characterized in that: The take-up component (22) includes two vertical guide rail side plates (221). Side blocks (222) are fixedly connected to the middle of the outer sides of each of the two vertical guide rail side plates (221). The rear sides of each of the two side blocks (222) are fixedly connected to the front ends of two columnar push-pull rods (2116). Connecting side plates (223) are fixedly connected to the top and bottom of the inner sides of the two vertical guide rail side plates (221). Outer side plates (224) are fixedly connected to the rear sides of the outer walls of both sets of connecting side plates (223). Concave plates (225) are fixedly connected to the top and bottom of the inner sides of the two outer side plates (224). A concave plate (225) is fixedly connected to the middle of the inner sides of the two vertical guide rail side plates (221). Front plate connecting block (226), front plate (227) is fixedly connected to the front side of the two front plate connecting blocks (226), guide side plate (228) is fixedly connected to the middle of the inner side of the two outer side plates (224), guide rail rod (229) is fixedly connected to the top and bottom of the inner side of the two guide side plates (228), C-shaped slider (22111) is slidably connected to the inner side of the left and right sets of guide rail rods (229), columnar connecting rod (22110) is fixedly connected to the middle of the rear side of the two C-shaped sliders (22111), and the rear ends of the two columnar connecting rods (22110) are fixedly connected to the middle of the front side of the inner side of the two outer plates (211).

8. The arc detection device for automobile anti-collision beam production according to claim 7, characterized in that: Rotating rods (22112) are rotatably connected to both sides of the front outer side of the two C-shaped sliders (22111). Rotating rods (22112) are rotatably connected to the side of the left and right sets of rotating rods (22112) away from the C-shaped sliders (22111). Expanding and contracting plates (22113) are fixedly connected to the outer side of the left and right sets of expanding and contracting plates (22115). The rear sides of the left and right sets of expanding and contracting plates (22113) are slidably connected to both sides of the front of the two vertical guide rail side plates (221). The front sides of the left and right sets of expanding and contracting plates (22113) are slidably connected to both sides of the rear of the two front plates (227). Clamping plates (22114) are fixedly connected to the outer side of the left and right sets of expanding and contracting plates (22113).

9. The arc detection device for automobile anti-collision beam production according to claim 1, characterized in that: The detection frame (3) includes an inverted concave frame (31), and arc-shaped side plates (32) are fixedly connected to the left and right sides of the top inner side of the inverted concave frame (31). Laser scanners (33) are fixedly connected to the bottom sides of the two arc-shaped side plates (32) in a ring array.

10. A detection method for an arc detection device used in the production of automotive anti-collision beams, wherein the arc detection device for the production of automotive anti-collision beams according to any one of claims 1-9 is characterized in that: Includes the following steps: Step 1: Debug each component of the device in advance to confirm that the electric vertical push rod (218), electric push rod (112) and laser scanner (33) can all operate normally. Preset the rotation angle threshold and laser scanning parameters according to the specifications of the anti-collision beam to be tested. Clear the detection data buffer area and reset the detection seat (1) and the picking mechanism (2) to the initial standby position. Step 2: Place the car anti-collision beam to be tested at the preset gripping position in front of the testing seat (1). After confirming that the anti-collision beam is not shifted, start the device to begin testing. Step 3: Start the electric vertical push rod (218), and drive the two clamping plates (22114) to clamp the two sides of the anti-collision beam to be tested according to the transmission process described above, so as to complete the automatic positioning and gripping of the anti-collision beam and avoid the anti-collision beam from shifting during the testing process, which would affect the testing accuracy. Step 4: Start the electric push rod (112) and drive the picking mechanism (2) and the fixed anti-collision beam to adjust the rotation angle according to the transmission process described above. At the same time, the sector tooth (18) is driven to rotate by the gear (111), so that the baffle (118) rotates upward and lifts up, forming an auxiliary support limit on the bottom of the anti-collision beam that has rotated to the detection angle, thereby improving the structural stability. Step 5: The electric push rod (112) adjusts the anti-collision beam to the corresponding detection angle according to the preset parameters and then stops. It starts all the laser scanners (33) inside the inverted concave frame (31) to scan and collect the corresponding curvature area of ​​the anti-collision beam at the current angle and obtain the arc data. Step 6: According to the preset detection process, control the electric push rod (112) to gradually adjust the rotation angle of the anti-collision beam. Stop the action when it reaches a preset detection node. Repeat the scanning operation of step 5 until the scanning of all curvature positions of the entire area of ​​the anti-collision beam is completed and complete arc data is obtained. Step 7: After scanning, transmit all the arc data collected by the laser scanner (33) to the terminal processing system, automatically splice and integrate them into a complete anti-collision beam arc model, compare it with the preset standard arc parameters, output the detection results, and determine whether the arc of the anti-collision beam meets the production requirements. Step 8: After the test is completed, control the electric push rod (112) to push the anti-collision beam back to the initial material picking angle, control the electric vertical push rod (218) to operate in the opposite direction, so that the two clamping plates (22114) loosen their clamping on the anti-collision beam, remove the anti-collision beam that has been tested, reset the device to the initial standby state, and prepare for the next test.

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