Automobile mounting plate welding positioning device and method

Abstract

The invention relates to the technical field of automobile mounting plate welding, and discloses an automobile mounting plate welding positioning device and method.The automobile mounting plate welding positioning device comprises a control panel, support bases, a driving assembly and reinforcing rib plates, the support bases are arranged on the two sides of the control panel correspondingly, and the reinforcing rib plates are fixed to the outer surfaces of the support bases correspondingly; a driving assembly is arranged on the outer side of the control panel and used for controlling the control panel to move, and a symmetrical positioning assembly is arranged on the inner side of the control panel and used for carrying and controlling a to-be-welded part. Through the track design that the welding head can move annularly and can rotate and incline after being positioned, when the automobile mounting plate is welded, multiple modes such as flat welding, overhead welding and double-face welding can be achieved, meanwhile, the multi-angle welding requirement is met, the applicability of the welding positioning device is fully guaranteed, and the welding modes of all types of automobile mounting plates are met.

Description

Technical Field

[0001] This invention application relates to the field of automotive mounting plate welding positioning technology, specifically an automotive mounting plate welding positioning device and method. Background Technology

[0002] Automotive mounting plates, made of metal or composite materials, are used to protect vehicle chassis, door locks, and other components. They are used to support, fix, and position vehicles. Their main functions include rust prevention and protection against bottoming damage and gravel impacts during driving. After being stamped and bent, automotive mounting plates are assembled and fixed by welding, and then inspected and painted. During welding assembly, the automotive mounting plate components need to be precisely aligned and kept stable to ensure the accuracy of the welding process.

[0003] The manufacturing process of automotive mounting plates includes: forming the plate body through stamping and bending processes, then welding and assembling the components to achieve fixed connection, followed by inspection and painting. Among them, the welding and assembly process is the key link to ensure the structural strength and assembly accuracy of the mounting plate. This process requires that the components of the automotive mounting plate be precisely aligned and kept in a stable clamping state to ensure the accuracy of the welding operation, the quality of the weld, and the adaptability of the mounting plate for subsequent assembly.

[0004] Current welding positioning devices have poor versatility. They generally use molds to precisely position and fix the mounting plates, but because the shapes and sizes of mounting plates for different car models are different, they cannot be effectively and accurately aligned during welding. For each batch of different models of plates to be welded, the molds need to be changed manually, which makes the applicability of the positioning device limited. Moreover, most of them rely solely on the precise positioning of the mounting plate to adapt to the position of the welding gun, making it difficult to position the mounting plate. Summary of the Invention

[0005] To address the inconvenience of cooling and material removal after forming in a welding positioning device and method for automotive mounting plates, this invention provides a welding positioning device and method for automotive mounting plates to solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A welding positioning device and method for automotive mounting plates includes a control panel, a bracket base, a drive assembly, and reinforcing ribs. The control panel has bracket bases on both sides, and a reinforcing rib is fixed to the outer surface of each bracket base. The drive assembly is located on the outer side of the control panel to control its movement. A symmetrical positioning assembly is located on the inner side of the control panel to mount and control the workpiece to be welded. The bottom surfaces of both positioning assemblies are provided with fitting assemblies to control the movement of the positioning assemblies.

[0008] The control panel includes a panel body, a track groove, and teeth. The track groove is formed in the middle of the surface of the panel body. Several teeth are fixed at equal intervals on the outer surface of the panel body on both sides of the track groove. A connecting component is installed on one side of the panel body for mounting and controlling the welding head.

[0009] Furthermore, the drive assembly includes a support roller, a roller frame, a drive gear, a gear frame, a servo motor one, a bearing seat, and a servo motor two. Support rollers are rotatably sleeved on the inner sides of both ends of the track groove. Two support rollers on each side are fixedly mounted on the roller frame. A gear frame is provided inside one of the roller frames, and a drive gear is rotatably connected inside the gear frame. Both drive gears are meshed with teeth. A servo motor one is provided on the outer side of the gear frame, and the output end of the servo motor one is fixed to one of the drive gears. The outer sides of the gear frame and the other roller frame are rotatably connected to the bearing seats. The bottoms of both bearing seats are fixed to the top surface of the support base. A bearing seat is installed on the bearing seat away from the gear frame, and the output end of the bearing seat is fixed to the other roller frame.

[0010] Furthermore, the connecting assembly includes a fixed frame, a movable rail box, a servo motor, and a movable plate. A detachable fixed frame is installed on one side of the disk body. The movable rail box is fixed on the side of the fixed frame away from the disk body. A servo motor is installed at one end of the movable rail box. A movable plate is fixed at the output end of the movable rail box. A lead screw assembly is installed inside the movable rail box.

[0011] Furthermore, the connecting assembly also includes a servo cylinder, a welding head fixing seat, a slide rod, and a guide sleeve plate. The servo cylinder is disposed on the outer side of the moving plate. The output end of the servo cylinder slides through the moving plate and is fixed to the welding head fixing seat. Slide rods are fixed on both sides of the welding head fixing seat. Guide sleeve plates are slidably sleeved on the slide rods. Both guide sleeve plates are fixed on both sides of the moving plate.

[0012] Furthermore, the positioning component includes a negative pressure fixing seat, a dustproof mesh window, a second movable track box, a fourth servo motor, and a fixing plate. Symmetrical negative pressure fixing seats are arranged inside the disc body. Sliding movable track boxes are connected to the outer sides of both negative pressure fixing seats. A fourth servo motor is arranged at one end of each movable track box. A fixing plate is fixed at the output end of each movable track box. A dustproof mesh window is arranged at the top of the dustproof mesh window. Fans are symmetrically arranged inside the negative pressure fixing seat. The fan inlet faces the dustproof mesh window, and the air outlet faces the bottom of the negative pressure fixing seat.

[0013] Furthermore, the positioning assembly also includes a positioning plate, a moving frame, a second servo cylinder, and a movable plate. The moving frame is fixed to the side of the negative pressure fixing seat near the second moving track box. The second servo cylinder is installed at one end of the moving frame. The output end of the second servo cylinder slides through the moving frame and is fixed to the movable plate. The side of the movable plate is fixed to the side wall of the second moving track box. The positioning plate is fixed to the side of the second moving track box away from the negative pressure fixing seat. The height of each second servo cylinder and the movable plate is less than the height of the negative pressure fixing seat and the second moving track box. The top surfaces of each negative pressure fixing seat, the second moving track box, and the moving frame are flush.

[0014] Furthermore, the bonding assembly includes a moving track box three, a servo motor five, a limiting frame, a sliding sleeve block, and a positioning bracket. The moving track box three is provided at the bottom of the negative pressure fixing seat, and a servo motor five is provided at one end of the moving track box three. A positioning bracket is fixed at the bottom of the servo motor five. The output end of the moving track box three is fixed to the bottom surface of the negative pressure fixing seat. Sliding sleeve blocks are symmetrically fixed at the bottom of the negative pressure fixing seat. The sliding sleeve blocks are slidably sleeved on the limiting frame. Each set of two limiting frames is fixed on the side wall of the moving track box three. The center lines of the negative pressure fixing seat and the moving track box three are on the same vertical plane.

[0015] A welding positioning method for automotive mounting plates, the welding positioning method comprising the following steps:

[0016] S1, initial calibration and positioning, adjust the three moving rail boxes and the disk body so that the two moving rail boxes are aligned with the center line of the disk body, then fix the bracket base and positioning bracket on the ground, and fix the welding head on the welding head fixing seat with fasteners. When fixing, ensure that the welding head is parallel to the edge of the welding head fixing seat.

[0017] S2, place the two welding parts to be assembled on the top surfaces of the negative pressure fixing seat and the moving rail box respectively, and place the welding surfaces of the two welding parts opposite each other, drive the positioning component and the bonding component to make the welding surfaces of the two welding parts fit together.

[0018] S3: Welding is performed by controlling the movement of the welding head through the drive component and the connecting component. After welding is completed, the positioning component is released from control, and the assembled part can be removed.

[0019] Furthermore, step S2 specifically includes the following steps:

[0020] S21, place the two welding parts on the two negative pressure fixing seats and the second movable rail box respectively, so that the outer edge of the welding parts abuts against the positioning plate, and place the welding surfaces of the two welding parts facing each other. The fan inside the negative pressure fixing seat runs, and under the action of negative pressure, the welding parts are adsorbed and stabilized on the top surface of the dustproof mesh window. After the welding parts are stabilized, the fourth servo motor runs, driving the internal lead screw assembly to run, thereby driving the two fixing clamps to move relative to each other and clamp the welding parts, thereby fixing the welding parts on the second movable rail box.

[0021] S22, after both parts to be welded are fixed on the second movable rail box, under the precise control of the screw assembly and the dimensions of the parts to be welded, the second servo cylinder runs, driving the movable plate to move, thereby driving the second movable rail box to move. The two second movable rail boxes move to align the welding surfaces of the two parts to be welded.

[0022] S23, after alignment, the two servo motors five run, driving the lead screw assembly inside the moving rail box three to move, thereby driving the negative pressure fixing seat to move, and the negative pressure fixing seat to drive the moving rail box two to move, until the welding surfaces of the two parts to be welded are tightly fitted together, and the welding head is aligned with the welding surface.

[0023] Furthermore, step S3 specifically includes the following steps:

[0024] S31. Before welding, adjust the position of the welding head. During adjustment, the servo motor runs and drives the drive gear to rotate. The gear drives the disc to rotate. When the disc rotates, it drives the connecting component to make a circular motion and makes the moving rail box parallel to the surface to be welded. At this time, the servo cylinder runs and drives the welding head fixing seat and slide rod to move, thereby driving the welding head to approach the welding surface.

[0025] S32, after the initial positioning of the welding head is completed, the angle of the welding head is adjusted according to the welding angle requirements. During the adjustment, the second servo motor runs and drives the roller frame to rotate, thereby adjusting the angle of the welding head. After the adjustment is completed, the third servo motor runs and drives the lead screw assembly inside the first moving rail box to run, thereby driving the welding head to move parallel along the surface to be welded, thus completing the welding.

[0026] S33, after welding is completed, the slide bar moves to move the welding head away. At the same time, two servo motors four run to move the two fixed clamps away from the welded assembly. After the clamps are released, the assembly is removed. Servo motor five runs to move the moving rail box two away to reset, in preparation for placing the next set of parts to be welded.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The present invention, through the design of a circular and rotatable tilting trajectory after the welding head is positioned, enables the automotive mounting plate to be welded in multiple ways, such as flat welding, overhead welding, and double-sided welding, while meeting the welding requirements of multiple angles. This fully ensures the applicability of the welding positioning device and meets the welding methods of all models of automotive mounting plates.

[0029] 2. The negative pressure fixing seat, fixing clamp and positioning plate work together to achieve rapid positioning and fixing of the car mounting plate. Then, the bonding component is used to align and bond the car mounting plate parts to be welded, while ensuring the stability during welding and further improving the applicability of the positioning device.

[0030] 3. The present invention features a movable design for the negative pressure fixing seat and the second movable rail box, which allows for adjustment based on the contact surface of the mounting plate during use. This solves the problem that existing positioning devices cannot adjust the alignment of the two parts to be welded according to the different welding positions of the mounting plate. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of a positioning device according to an embodiment of this application;

[0033] Figure 2 yes Figure 1 A partial structural diagram of the positioning device in the illustrated embodiment;

[0034] Figure 3 yes Figure 1 A schematic diagram of the positioning device from another perspective in the illustrated embodiment.

[0035] Figure 4 yes Figure 1 A schematic diagram of the positioning device after partial rotation in the illustrated embodiment.

[0036] Figure 5 yes Figure 1 The schematic diagram of the welding head connection assembly in the embodiment shown is as follows;

[0037] Figure 6 yes Figure 1 The illustrated embodiment shows a schematic diagram of the positioning assembly for the workpiece to be welded.

[0038] The meanings of the reference numerals in the diagram are as follows: 1. Control panel; 11. Panel body; 12. Track groove; 13. Gear; 2. Support base; 3. Drive assembly; 31. Support roller; 32. Roller frame; 33. Drive gear; 34. Gear frame; 35. Servo motor one; 36. Bearing seat; 37. Servo motor two; 4. Reinforcing rib plate; 5. Connecting assembly; 51. Fixing frame; 52. Moving track box one; 53. Servo motor three; 54. Moving plate; 55. Servo... 56. Cylinder 1; 57. Welding head fixing seat; 58. Slide rod; 69. Guide sleeve plate; 60. Positioning assembly; 61. Negative pressure fixing seat; 62. Dustproof mesh window; 63. Moving rail box 2; 64. Servo motor 4; 65. Fixing clamp; 66. Positioning plate; 67. Moving frame; 68. Servo cylinder 2; 69. Movable plate; 70. Fitting assembly; 71. Moving rail box 3; 72. Servo motor 5; 73. Limiting frame; 74. Sliding sleeve block; 75. Positioning bracket. Detailed Implementation

[0039] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Example:

[0041] Reference Figures 1-6 A welding positioning device and method for automotive mounting plates includes a control panel 1, a bracket base 2, a drive assembly 3, and reinforcing ribs 4. The control panel 1 is provided with bracket bases 2 on both sides. Each bracket base 2 has a reinforcing rib 4 fixed on its outer surface. The bottom surface of each reinforcing rib 4 is flush with the bottom surface of the bracket base 2. The drive assembly 3 is provided on the outer side of the control panel 1 for controlling the movement of the control panel 1. The control panel 1 is provided with symmetrical positioning assemblies 6 on its inner side for mounting and controlling the workpiece to be welded. The bottom surfaces of the two positioning assemblies 6 are provided with fitting assemblies 7 for controlling the movement of the positioning assemblies 6.

[0042] The control panel 1 includes a panel body 11, a track groove 12, and teeth 13. The track groove 12 is provided in the middle of the surface of the panel body 11. Several teeth 13 are fixed at equal intervals on the outer surface of the panel body 11 on both sides of the track groove 12. A connecting component 5 is installed on one side of the panel body 11 for mounting and controlling the welding head.

[0043] In this embodiment, the drive assembly 3 includes a support roller 31, a roller frame 32, a drive gear 33, a gear frame 34, a servo motor 35, a bearing seat 36, and a servo motor 37. Support rollers 31 are rotatably sleeved on the inner sides of both ends of the track groove 12. Two support rollers 31 on each side are fixedly mounted on the roller frame 32. A gear frame 34 is provided inside one of the roller frames 32. This roller frame 32 has a slot inside that mates with the drive gear 33 and the gear frame 34. The gear frame 34 rotates internally. A drive gear 33 is connected, and both drive gears 33 are meshed with teeth 13. A servo motor 35 is provided on the outside of the gear frame 34. The output end of the servo motor 35 is fixed on one of the drive gears 33. The gear frame 34 and the other roller frame 32 are rotatably connected to the bearing housing 36. The bottom of both bearing housings 36 is fixed to the top surface of the bracket base 2. A bearing housing 36 is installed on the bearing housing 36 away from the gear frame 34. The output end of the bearing housing 36 is fixed on the other roller frame 32.

[0044] In this embodiment, the connecting component 5 includes a fixed frame 51, a movable rail box 52, a servo motor 53, and a movable plate 54. A detachable fixed frame 51 is installed on one side of the disk body 11. A movable rail box 52 is fixed on the side of the fixed frame 51 away from the disk body 11. A servo motor 53 is provided at one end of the movable rail box 52. A movable plate 54 is fixed at the output end of the movable rail box 52. A lead screw assembly is provided inside the movable rail box 52. Each lead screw assembly includes a lead screw and a movable slider. The lead screw is rotatably connected inside the movable rail box 52. The movable slider is threaded onto the lead screw. One end of the movable slider is fixed on the movable plate 54.

[0045] The connecting component 5 also includes a servo cylinder 55, a welding head fixing seat 56, a slide rod 57, and a guide sleeve plate 58. The servo cylinder 55 is provided on the outside of the moving plate 54. The output end of the servo cylinder 55 slides through the moving plate 54 and is fixed to the welding head fixing seat 56. Slide rods 57 are fixed on both sides of the welding head fixing seat 56. Guide sleeve plates 58 are slidably sleeved on the slide rods 57. Both guide sleeve plates 58 are fixed on both sides of the moving plate 54.

[0046] In this embodiment, the positioning component 6 includes a negative pressure fixing seat 61, a dustproof mesh window 62, a second movable rail box 63, a fourth servo motor 64, and a fixed clamping plate 65. A symmetrical negative pressure fixing seat 61 is provided on the inner side of the disc body 11. A slidable second movable rail box 63 is connected to the outer side of each of the two negative pressure fixing seats 61. A fourth servo motor 64 is provided at one end of the second movable rail box 63. A fixed clamping plate 65 is fixed at the output end of the second movable rail box 63. A lead screw assembly is provided inside the second movable rail box 63. A movable slider is symmetrically threaded on the lead screw of this lead screw assembly. The thread direction of the thread groove inside the two movable sliders is opposite, thereby driving the two fixed clamping plates 65 to move relative to or in opposite directions. A dustproof mesh window 62 is provided at the top. A fan is symmetrically arranged inside the negative pressure fixing seat 61. The fan inlet faces the dustproof mesh window 62, and the outlet faces the bottom of the negative pressure fixing seat 61.

[0047] The positioning component 6 also includes a positioning plate 66, a moving frame 67, a second servo cylinder 68, and a movable plate 69. The moving frame 67 is fixed to the side of the negative pressure fixing seat 61 near the second moving rail box 63. The second servo cylinder 68 is installed at one end of the moving frame 67. The output end of the second servo cylinder 68 slides through the moving frame 67 and is fixed to the movable plate 69. The side of the movable plate 69 is fixed to the side wall of the second moving rail box 63. The positioning plate 66 is fixed to the side of the second moving rail box 63 away from the negative pressure fixing seat 61. The height of each second servo cylinder 68 and the movable plate 69 is less than the height of the negative pressure fixing seat 61 and the second moving rail box 63. The top surfaces of each negative pressure fixing seat 61, the second moving rail box 63, and the moving frame 67 are flush. The workpiece to be welded is first stabilized by the negative pressure fixing seat 61, and then fixed by the fixing clamp 65. With the help of the positioning plate 66, the workpiece to be welded is stably aligned. After fixing, the position of the workpiece to be welded is adjusted to improve the automation level of the positioning of the workpiece to be welded.

[0048] In this embodiment, the bonding component 7 includes a movable track box 71, a servo motor 72, a limiting frame 73, a sliding sleeve 74, and a positioning bracket 75. The movable track box 71 is provided at the bottom of the negative pressure fixing seat 61. The servo motor 72 is provided at one end of the movable track box 71. The positioning bracket 75 is fixed at the bottom of the servo motor 72. The output end of the movable track box 71 is fixed to the bottom surface of the negative pressure fixing seat 61. Another set of lead screw assemblies is provided inside the movable track box 71. The sliding slider of this set of lead screw assemblies is fixed to the bottom surface of the negative pressure fixing seat 61. Sliding sleeves 74 are symmetrically fixed at the bottom of the negative pressure fixing seat 61. The sliding sleeves 74 are slidably sleeved on the limiting frame 73. Each set of two limiting frames 73 are fixed on the side wall of the movable track box 71. The center lines of the negative pressure fixing seat 61 and the movable track box 71 are on the same vertical plane.

[0049] A method for welding and positioning automotive mounting plates, the method comprising the following steps:

[0050] S1. Initial calibration and positioning: Adjust the moving track box 3 71 and the disk 11 so that the center line of the two moving track boxes 3 71 is aligned with the center line of the disk 11. Then fix the bracket base 2 and the positioning bracket 75 on the ground. Fix the welding head on the welding head fixing seat 56 with fasteners. When fixing, ensure that the welding head is parallel to the edge of the welding head fixing seat 56.

[0051] S2, place the two welding parts to be assembled on the top surfaces of the negative pressure fixing seat 61 and the moving rail box 63 respectively, and place the welding surfaces of the two welding parts opposite to each other, drive the positioning component 6 and the bonding component 7 to make the welding surfaces of the two welding parts bond together.

[0052] S21, place the two welding parts on the two negative pressure fixing seats 61 and the second movable rail box 63 respectively, so that the outer edge of the welding part abuts against the positioning plate 66, and place the welding surfaces of the two welding parts facing each other. The fan inside the negative pressure fixing seat 61 runs, and under the action of negative pressure, the welding part is adsorbed and stabilized on the top surface of the dustproof mesh window 62. After the welding part is stabilized, the fourth servo motor 64 runs, driving the internal lead screw assembly to run, thereby driving the two fixing clamps 65 to move relative to each other and clamp the welding part, thereby fixing the welding part on the second movable rail box 63.

[0053] S22, after both parts to be welded are fixed on the second movable rail box 63, under the precise control of the dimensions of the lead screw assembly and the parts to be welded, the second servo cylinder 68 runs, driving the movable plate 69 to move, thereby driving the second movable rail box 63 to move. The two movable rail boxes 63 move to align the welding surfaces of the two parts to be welded.

[0054] S23, after alignment, the two servo motors 5 and 72 run, driving the lead screw assembly inside the moving rail box 3 and 71 to move, thereby driving the negative pressure fixing seat 61 to move. The negative pressure fixing seat 61 drives the moving rail box 2 and 63 to move until the welding surfaces of the two parts to be welded are tightly fitted together, and the welding head is aligned with the welding surface.

[0055] S3, the welding head is moved by the drive component 3 and the connecting component 5 to perform welding. After welding is completed, the positioning component 6 is released from control, and the assembled part can be removed after welding.

[0056] S31, Before welding, adjust the position of the welding head. During adjustment, the servo motor 35 runs, driving the drive gear 33 to rotate, which in turn drives the disc 11 to rotate through the teeth 13. When the disc 11 rotates, it drives the connecting component 5 to make a circular motion, and makes the moving rail box 52 parallel to the surface to be welded. At this time, the servo cylinder 55 runs, driving the welding head fixing seat 56 and the slide bar 57 to move, thereby driving the welding head to approach the welding surface.

[0057] S32, after the initial positioning of the welding head is completed, the angle of the welding head is adjusted according to the welding angle requirements. During the adjustment, the second servo motor 37 runs and drives the roller frame 32 to rotate, thereby adjusting the angle of the welding head. After the adjustment is completed, the third servo motor 53 runs and drives the lead screw assembly inside the first moving rail box 52 to run, thereby driving the welding head to move parallel along the surface to be welded, thus completing the welding.

[0058] S33, after welding is completed, slide bar 57 moves to move the welding head away. At the same time, two servo motors 64 move to move two fixed clamps 65 away from the welded assembly. After the clamps are released, the assembly is removed. Servo motor 72 moves to move the moving rail box 63 away from the reset position, ready to place the next set of parts to be welded.

[0059] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A welding positioning device for automotive mounting plates, characterized in that: The control panel (1), support base (2), drive assembly (3) and reinforcing rib plate (4) are provided on both sides of the control panel (1). Each support base (2) is fixed with a reinforcing rib plate (4) on its outer surface. The drive assembly (3) is provided on the outer side of the control panel (1) for controlling the movement of the control panel (1). The symmetrical positioning assembly (6) is provided on the inner side of the control panel (1) for mounting and controlling the workpiece to be welded. The bottom surfaces of the two positioning assemblies (6) are provided with fitting assemblies (7) for controlling the movement of the positioning assemblies (6). The control panel (1) includes a panel body (11), a track groove (12), and teeth (13). The track groove (12) is provided in the middle of the surface of the panel body (11). Several teeth (13) are fixed at equal intervals on the outer surface of the panel body (11) on both sides of the track groove (12). A connecting component (5) is installed on one side of the panel body (11) for mounting and controlling the welding head.

2. The automotive mounting plate welding positioning device according to claim 1, characterized in that: The drive assembly (3) includes a support roller (31), a roller frame (32), a drive gear (33), a gear frame (34), a servo motor one (35), a bearing seat (36), and a servo motor two (37). Support rollers (31) are rotatably sleeved on the inner sides of both ends of the track groove (12). Two support rollers (31) on each side are fixedly mounted on the roller frame (32). A gear frame (34) is provided inside one of the roller frames (32), and a drive gear (33) is rotatably connected inside the gear frame (34). Two drive gears (35)... 3) All are meshed with teeth (13). A servo motor (35) is provided on the outside of the gear frame (34). The output end of the servo motor (35) is fixed on one of the drive gears (33). The gear frame (34) and the other roller frame (32) are rotatably connected to the bearing seat (36). The bottom of the two bearing seats (36) is fixed on the top surface of the support base (2). A bearing seat (36) is installed on the bearing seat (36) away from the gear frame (34). The output end of the bearing seat (36) is fixed on the other roller frame (32).

3. The automotive mounting plate welding positioning device according to claim 1, characterized in that: The connecting component (5) includes a fixed frame (51), a movable rail box (52), a servo motor (53), and a movable plate (54). A detachable fixed frame (51) is installed on one side of the disk body (11). A movable rail box (52) is fixed on the side of the fixed frame (51) away from the disk body (11). A servo motor (53) is provided at one end of the movable rail box (52). A movable plate (54) is fixed at the output end of the movable rail box (52). A lead screw assembly is provided inside the movable rail box (52).

4. The automotive mounting plate welding positioning device according to claim 3, characterized in that: The connecting assembly (5) further includes a servo cylinder (55), a welding head fixing seat (56), a slide rod (57), and a guide sleeve plate (58). The servo cylinder (55) is provided on the outside of the moving plate (54). The output end of the servo cylinder (55) slides through the moving plate (54) and is fixed to the welding head fixing seat (56). Slide rods (57) are fixed on both sides of the welding head fixing seat (56). Guide sleeve plates (58) are slidably sleeved on the slide rods (57). Both guide sleeve plates (58) are fixed on both sides of the moving plate (54).

5. The automotive mounting plate welding positioning device according to claim 1, characterized in that: The positioning component (6) includes a negative pressure fixing seat (61), a dustproof mesh window (62), a second movable track box (63), a fourth servo motor (64), and a fixing plate (65). A symmetrical negative pressure fixing seat (61) is provided on the inner side of the disc body (11). A slidable second movable track box (63) is connected to the outer side of each of the two negative pressure fixing seats (61). A fourth servo motor (64) is provided at one end of the second movable track box (63). A fixing plate (65) is fixed at the output end of each second movable track box (63). A dustproof mesh window (62) is provided at the top of the dustproof mesh window (62). Fans are symmetrically arranged inside the negative pressure fixing seat (61). The fan inlet faces the dustproof mesh window (62), and the outlet faces the bottom of the negative pressure fixing seat (61).

6. The automotive mounting plate welding positioning device according to claim 5, characterized in that: The positioning component (6) further includes a positioning plate (66), a moving frame (67), a servo cylinder two (68), and a movable plate (69). The negative pressure fixing seat (61) is fixed with the moving frame (67) on the side near the moving rail box two (63). The servo cylinder two (68) is installed at one end of the moving frame (67). The output end of the servo cylinder two (68) slides through the moving frame (67) and is fixed with the movable plate (69). The side of the movable plate (69) is fixed on the side wall of the moving rail box two (63). The positioning plate (66) is fixed on the side of the moving rail box two (63) away from the negative pressure fixing seat (61). The height of each servo cylinder two (68) and movable plate (69) is less than the height of the negative pressure fixing seat (61) and the moving rail box two (63). The top surfaces of each negative pressure fixing seat (61), moving rail box two (63), and moving frame (67) are flush.

7. The automotive mounting plate welding positioning device according to claim 5, characterized in that: The bonding component (7) includes a three-moving track box (71), a five-servo motor (72), a limiting frame (73), a sliding sleeve (74), and a positioning bracket (75). The bottom of the negative pressure fixing seat (61) is provided with a three-moving track box (71). One end of the three-moving track box (71) is provided with a five-servo motor (72). The bottom of the five-servo motor (72) is fixed with a positioning bracket (75). The output end of the three-moving track box (71) is fixed on the bottom surface of the negative pressure fixing seat (61). The bottom of the negative pressure fixing seat (61) is symmetrically fixed with sliding sleeves (74). The sliding sleeves (74) are slidably sleeved on the limiting frame (73). Each set of two limiting frames (73) are fixed on the side wall of the three-moving track box (71). The center lines of the negative pressure fixing seat (61) and the three-moving track box (71) are on the same vertical plane.

8. A method for welding and positioning automotive mounting plates, employing the automotive mounting plate welding and positioning device according to any one of claims 1-7, characterized in that: The welding positioning method includes the following steps: S1, initial calibration and positioning, adjust the three moving rail boxes (71) and the disk (11) so that the two moving rail boxes (71) are aligned with the center line of the disk (11), then fix the bracket base (2) and the positioning bracket (75) on the ground, and fix the welding head on the welding head fixing seat (56) with fasteners. When fixing, ensure that the welding head is parallel to the edge of the welding head fixing seat (56); S2, place the two welding parts to be assembled on the top surface of the negative pressure fixing seat (61) and the second moving rail box (63) respectively, and make the welding surfaces of the two welding parts face each other, drive the positioning component (6) and the bonding component (7) to make the welding surfaces of the two welding parts fit together; S3, the welding head is moved by the drive component (3) and the connection component (5) to perform welding. After welding is completed, the positioning component (6) is released from control, and the assembled part after welding can be removed.

9. The method for welding and positioning an automotive mounting plate according to claim 8, characterized in that: Step S2 specifically includes the following steps: S21, place the two welding parts on the two negative pressure fixing seats (61) and the second moving rail box (63) respectively, and make the outer edge of the welding part abut against the positioning plate (66), and place the welding surfaces of the two welding parts opposite each other. The fan inside the negative pressure fixing seat (61) runs, and under the action of negative pressure, the welding part is adsorbed and stabilized on the top surface of the dustproof mesh window (62). After the welding part is stabilized, the fourth servo motor (64) runs, driving the internal screw assembly to run, thereby driving the two fixing plates (65) to move relative to each other to clamp the welding part, thereby fixing the welding part on the second moving rail box (63). S22, after both parts to be welded are fixed on the second movable rail box (63), under the precise control of the screw assembly and the dimensions of the parts to be welded, the second servo cylinder (68) runs, driving the movable plate (69) to move, thereby driving the second movable rail box (63) to move. The two second movable rail boxes (63) move to align the welding surfaces of the two parts to be welded. S23, after alignment, the two servo motors five (72) run, driving the lead screw assembly inside the moving rail box three (71) to move, thereby driving the negative pressure fixing seat (61) to move, and the negative pressure fixing seat (61) drives the moving rail box two (63) to move until the welding surfaces of the two parts to be welded are tightly attached, and the welding head is aligned with the welding surface.

10. A welding and positioning method for an automotive mounting plate according to claim 8, characterized in that: Step S3 specifically includes the following steps: S31, Before welding, adjust the position of the welding head. During adjustment, servo motor 1 (35) runs, driving the drive gear (33) to rotate. Through the teeth (13), the disk (11) rotates. When the disk (11) rotates, it drives the connecting component (5) to make a circular motion, and makes the moving track box 1 (52) parallel to the surface to be welded. At this time, servo cylinder 1 (55) runs, driving the welding head fixing seat (56) and slide bar (57) to move, thereby driving the welding head to approach the welding surface. S32, after the initial positioning of the welding head is completed, the angle of the welding head is adjusted according to the welding angle requirements. During the adjustment, the second servo motor (37) runs and drives the roller frame (32) to rotate, thereby adjusting the angle of the welding head. After the adjustment is completed, the third servo motor (53) runs and drives the screw assembly inside the first moving track box (52) to run, thereby driving the welding head to move parallel along the surface to be welded, thereby completing the welding. S33. After welding is completed, the slide bar (57) moves to move the welding head away. At the same time, the two servo motors four (64) move to move the two fixed clamps (65) away from the welded assembly. After the fixation is released, the assembly is removed. The servo motor five (72) moves to move the moving rail box two (63) away from the reset position, so as to place the next set of parts to be welded.

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