Efficient positioning auxiliary system for welding

Abstract

The invention provides an efficient welding positioning auxiliary system which comprises a bottom plate, a plurality of upward hydraulic lifting columns are arranged at the upper end of the bottom plate in an array mode, a lower connecting table is arranged at the upper end of each hydraulic lifting column, and an upper connecting table is connected to the upper end of each lower connecting table; three electric telescopic rods are arranged between each lower connecting table and the corresponding upper connecting table, a telescopic motor is installed at the upper end of each upper connecting table, and a clamping mechanism is installed above each telescopic motor. Mounting frames are upwards arranged at the positions, on the two sides of the hydraulic lifting column, of the upper end of the bottom plate, each mounting frame is slidably connected with a lifting frame, each mounting frame is provided with a lifting driving motor capable of driving the corresponding lifting frame to ascend and descend, and the side, facing the middle of the bottom plate, of each lifting frame is connected with a telescopic mechanism; a clamping block is arranged on the free side of each telescopic mechanism. Workpieces of different shapes and sizes can be rapidly and accurately clamped and positioned, so that the overall welding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding positioning, and relates to a high-efficiency welding positioning auxiliary system. Background Art

[0002] During the welding process, precise positioning and clamping of the workpiece are often required to ensure accurate weld seam placement and consistent weld quality. Traditional welding operations rely primarily on manual operation combined with simple positioning devices to secure the workpiece. While this method meets basic positioning requirements to a certain extent, it suffers from low positioning accuracy, low efficiency, and significant human error, making it difficult to adapt to the higher demands of modern manufacturing for welding precision and production efficiency.

[0003] With the continuous improvement of industrial automation, welding processes are gradually moving towards automation and intelligence. In recent years, an increasing number of welding production lines have begun to use robotic arms as actuators, using programmed control to control the welding head to weld the workpiece along a predetermined path. Compared to traditional manual welding, automated welding offers significant advantages such as high repeatability, excellent weld consistency, and high production efficiency. It has been widely used in various fields, including aerospace, automotive manufacturing, and rail transportation.

[0004] However, in the process of achieving automated welding, how to quickly and accurately position workpieces of varying shapes and sizes remains a pressing technical challenge. Currently, most commonly used welding positioners are general-purpose structures, typically consisting of fixed fixtures or manual adjustment devices. These simple structures have limited adjustment ranges and are difficult to flexibly adapt to the positioning needs of complex workpieces. Summary of the Invention

[0005] The purpose of the present invention is to provide an efficient welding positioning auxiliary system that can quickly and accurately clamp and position workpieces of different shapes and sizes, thereby helping to improve overall welding efficiency.

[0006] To solve the above technical problems, the present invention provides a high-efficiency welding positioning auxiliary system, comprising a base plate, wherein a plurality of upwardly disposed hydraulic lifting columns are arranged in an array on the upper end of the base plate, wherein a lower connecting platform is provided on the upper end of each hydraulic lifting column, wherein the upper end of each lower connecting platform is connected to an upper connecting platform, wherein three electric telescopic rods are provided between each lower connecting platform and the corresponding upper connecting platform, wherein a telescopic motor is installed on the upper end of each upper connecting platform, wherein a clamping mechanism is installed above each telescopic motor, and wherein each clamping mechanism is driven by the corresponding telescopic motor;

[0007] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0008] By adopting the above technical solution, before welding, the workpiece to be welded is first lifted to the top of the base plate using a lifting device. After adjusting the position, the workpiece is slowly lowered. According to the spatial distance and position, the hydraulic lifting column is controlled to rise and fall, and the three electric telescopic rods are coordinated to extend and retract to adjust the angle of the telescopic motor and the clamping mechanism. Finally, the frame structure of the welded workpiece falls onto the clamping mechanism, and the telescopic motor is shortened, so that the clamping mechanism clamps the workpiece frame. Similarly, the weldment to be welded on the workpiece also adopts the above method, and the weldment is clamped by the clamping mechanism. When the welded workpiece needs to be released, the telescopic motor only needs to extend to push the clamping mechanism to release the workpiece frame.

[0009] When it is necessary to use a clamping block to clamp the welding workpiece from the side, the lifting drive motor drives the lifting frame to the same height as the welding workpiece, and the telescopic mechanism extends, so that the clamping block gradually approaches the welding workpiece. After the clamping shaft on the clamping block contacts the edge of the workpiece, it pushes the clamping shaft to compress the support spring, so that the clamping shaft retracts into the telescopic hole, and the remaining clamping shafts are stuck on both sides of the welding workpiece to effectively fix the welding workpiece. When the welding workpiece needs to be released, only the telescopic mechanism needs to be shortened to gradually retract the clamping shaft from the welding workpiece, and the clamping shaft in the telescopic hole is reset under the action of the support spring.

[0010] The present invention is further configured such that a plurality of support sleeves arranged upward and corresponding one-to-one to the hydraulic lifting columns are arrayed at the upper end of the base plate, each hydraulic lifting column is rotatably connected to the corresponding support sleeve, a rotating sleeve is provided at the lower part of each support sleeve, a first worm gear is connected to the lower end of each hydraulic lifting column in the corresponding rotating sleeve, a first worm gear meshing with the corresponding first worm gear is rotatably connected to each rotating sleeve, and a first drive motor for driving the corresponding first worm gear to rotate is installed outside each rotating sleeve.

[0011] The present invention is further configured such that both sides of each mounting frame are connected to chains arranged along their height direction, the upper and lower ends of each mounting frame are rotatably connected to drive shafts extending into the corresponding two chains, the power output shaft of each lifting drive motor is connected to one end of one of the drive shafts, and both ends of each drive shaft are provided with drive sprockets meshing with one end of the corresponding chain, and each mounting frame is provided with two side slides respectively matching the corresponding chains on the side facing the corresponding lifting frame, and each lifting frame is connected to the corresponding chain in the corresponding side slide.

[0012] The present invention is further configured such that each mounting frame is provided with a central slide groove arranged along its height direction at the middle part of the side facing the corresponding lifting frame, each lifting frame is provided with a sliding block slidably connected to the corresponding central slide groove, a horizontal rotation hole is provided inwardly through each lifting frame and the corresponding sliding block, each telescopic mechanism is provided with a horizontal rotating shaft rotatably connected to the corresponding horizontal rotating hole, each horizontal rotating shaft passes through the corresponding horizontal rotating hole and is connected to a second worm gear located in the corresponding mounting frame, each sliding block is rotatably connected to a second worm meshing with the corresponding second worm gear, and each sliding block is equipped with a second drive motor for driving the corresponding second worm gear to rotate.

[0013] The present invention is further configured such that each telescopic mechanism includes a connecting plate connected to the corresponding lifting frame, a clamping plate arranged opposite to the corresponding connecting plate, each clamping block is arranged on the corresponding clamping plate, a scissor-type telescopic mechanism is connected between each connecting plate and the corresponding clamping plate, and a hydraulic telescopic drive rod is installed in each scissor-type telescopic mechanism.

[0014] The present invention is further configured such that each clamping block is provided with a ventilation cavity connected to each telescopic hole thereof away from the corresponding limiting cover plate, and a ventilation hole connected to the corresponding ventilation cavity is opened on the outer side of each clamping block.

[0015] The present invention is further configured such that a plurality of rotating motors are mounted upwardly on the upper end of the base plate, a three-dimensional laser scanner is connected to the upper end of the power output shaft of each rotating motor, and each three-dimensional laser scanner is provided with a plurality of laser scanning cameras distributed obliquely upward from bottom to top.

[0016] The present invention is further configured such that each clamping mechanism includes two oppositely arranged clips, each clip is provided with a rotating arm in the direction of the corresponding telescopic motor, the telescopic shaft of each telescopic motor is connected to a connecting rotating shaft, each rotating arm is provided with a connecting sleeve rotatably connected to the corresponding connecting rotating shaft on the side away from the corresponding clip, each clip is provided with a limit bar arranged along its height direction on the side away from each other, each limit bar is provided with a limit bar-shaped hole arranged along its height direction, each upper connecting platform is provided with two pull strips corresponding to the limit strips one by one, and each pull strip is provided with a pull shaft slidably connected to the corresponding limit bar-shaped hole.

[0017] The present invention is further configured such that a rubber gasket is provided on the inner side of each clip.

[0018] The present invention is further configured such that each clamping mechanism includes a piston cylinder located at the upper end of the corresponding telescopic motor and connected thereto, a piston is slidably connected in each piston cylinder, the telescopic shaft of each telescopic motor is connected to a piston shaft extending into the corresponding piston cylinder and connected to the corresponding piston, a suction cup is provided at the upper end of each piston cylinder, and a suction hole is opened in the middle of each suction cup and connected to the upper part of the corresponding piston cylinder.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First, the present invention can adaptively lift and lower according to the shape of the welding workpiece by cooperating with multiple hydraulic lifting columns to match the shape of the welding workpiece. At the same time, the first drive motor can drive the hydraulic lifting columns to rotate accordingly, and the three electric telescopic rods can cooperate to drive the clamping mechanism to rotate as needed, ultimately achieving adjustment according to the shape of different welding workpieces and realizing effective clamping and positioning of the welding workpiece;

[0021] Secondly, the present invention is also equipped with a side clamping mechanism, which can also be raised and lowered according to the height of the welding workpiece, and can also be rotated according to its inclination angle. After the telescopic mechanism is extended and retracted, the multiple clamping shafts on the clamping block adaptively clamp the side of the main welding workpiece, and the clamping shafts that contact the side of the welding workpiece can adaptively retract, and finally form a shape between the clamping shafts that matches the side of the welding workpiece, effectively fixing the welding workpiece. The side clamping mechanism can be used alone, and can also be used in conjunction with the clamping mechanisms on multiple hydraulic lifting columns;

[0022] Third, the clamping mechanism on the hydraulic lifting column of the present invention has two options. One is a mechanical clamping method that uses a clip to clamp and fix the welding workpiece, which is suitable for frame-type welding workpieces. The other is a negative pressure clamping method that uses a suction cup to fix the welding workpiece, which is suitable for plate-shaped welding workpieces to meet the needs of different welding workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a partial cross-sectional view for illustrating the internal structure of a rotating sleeve in an embodiment;

[0025] Figure 3 This is an exploded view of the connection between the clamping mechanism and the telescopic motor in Example 1;

[0026] Figure 4 Used for connecting display mounting frames, lifting frames, and telescopic mechanisms;

[0027] Figure 5 It is a partial cross-sectional view used to show the internal structure of the mounting frame;

[0028] Figure 6 Used to demonstrate the connection between the second worm gear and the second worm;

[0029] Figure 7 It is a partial cross-sectional view used to show the internal structure of the clamping block;

[0030] Figure 8 Used to demonstrate the connection between the rotary motor and the 3D laser scanner;

[0031] Figure 9 This is the connection between the clamping mechanism and the hydraulic lifting column of the second embodiment;

[0032] Figure 10 It is a partial cross-sectional view of the piston cylinder of embodiment 2.

[0033] Among them, 1. Base plate; 2. Support sleeve; 3. Hydraulic lifting column; 4. Rotating sleeve; 5. First worm gear; 6. First worm; 7. First drive motor; 8. Lower connecting platform; 9. Upper connecting platform; 10. Electric telescopic rod; 11. Telescopic motor; 12. Clip; 13. Rubber gasket; 14. Rotating arm; 15. Connecting shaft; 16. Connecting sleeve; 17. Limiting strip; 18. Limiting strip hole; 19. Pull bar; 20. Pull shaft; 21. Rotating motor; 22. 3D laser scanner; 23. Laser scanning camera; 24. Mounting frame; 25. Lifting frame; 26. Chain; 27. Drive shaft; 2 8. Lifting drive motor; 29. ​​Drive sprocket; 30. Side slide; 31. Connecting plate; 32. Clamping plate; 33. Scissor-type telescopic mechanism; 34. Hydraulic telescopic drive rod; 35. Middle slide; 36. Sliding block; 37. Second worm gear; 38. Second worm; 39. Second drive motor; 40. Clamping block; 41. Telescopic hole; 42. Vent cavity; 43. Vent hole; 44. Sliding shaft; 45. Support spring; 46. Clamping shaft; 47. Limit cover plate; 48. Limit hole; 49. Piston cylinder; 50. Vent hole; 51. Piston; 52. Piston shaft; 53. Suction cup; 54. Suction hole. DETAILED DESCRIPTION

[0034] The following is a detailed description of the efficient welding positioning assistance system proposed by the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. Identical or similar reference numerals in the drawings represent identical or similar components.

[0035] Example 1, refer to Figure 1-8 A high-efficiency welding positioning auxiliary system includes a base plate 1, and a plurality of upwardly arranged support sleeves 2 are arranged in an array at the upper end of the base plate 1. A hydraulic lifting column 3 is rotatably connected to each support sleeve 2, and a rotating sleeve 4 is provided at the lower part of each support sleeve 2. The lower end of each hydraulic lifting column 3 is connected to a first worm gear 5 in the corresponding rotating sleeve 4, and each rotating sleeve 4 is rotatably connected to a first worm 6 that meshes with the corresponding first worm gear 5. A first drive motor 7 for driving the corresponding first worm gear 6 to rotate is installed outside each rotating sleeve 4, so that the hydraulic lifting column 3 can be driven to rotate by the first drive motor 7. A lower connecting platform 8 is provided at the upper end of each hydraulic lifting column 3, and an upper connecting platform 9 is connected to the upper end of each lower connecting platform 8. Three electric telescopic rods 10 are provided between each lower connecting platform 8 and the corresponding upper connecting platform 9. A telescopic motor 11 is installed at the upper end of each upper connecting platform 9. The telescopic motor 11 is a voice coil linear motor. Through the cooperation of the three electric telescopic rods 10, the telescopic motor 11 can be driven to rotate at multiple angles.

[0036] A clamping mechanism is installed above each telescopic motor 11, and each clamping mechanism includes two oppositely arranged clips 12, and a rubber gasket 13 is provided on the inner side of each clip 12. Each clip 12 is provided with a rotating arm 14 in the direction of the corresponding telescopic motor 11, and the two rotating arms 14 are in an inverted eight shape. The telescopic shaft of each telescopic motor 11 is connected to a connecting shaft 15, and each rotating arm 14 is provided with a connecting sleeve 16 rotatably connected to the corresponding connecting shaft 15 on the side away from the corresponding clip 12. Each clip 12 is far away from each other. A limit strip 17 is provided on each side along its height direction, and each limit strip 17 is provided with a limit strip-shaped hole 18 set along its height direction. Each upper connecting platform 9 is provided with two pull strips 19 corresponding to the limit strip 17 one by one, and each pull strip 19 is provided with a pull shaft 20 slidingly connected to the corresponding limit strip-shaped hole 18. When the telescopic motor 11 is extended and retracted, the rotating arm 14 is pushed and pulled through the connecting shaft 15, and then due to the limitation of the pull shaft 20, the two clamps 12 are opened outward or retracted inward to clamp the welding workpiece.

[0037] Two rotating motors 21 are installed upward from the upper end of the base plate 1, and the upper end of the power output shaft of each rotating motor 21 is connected to a three-dimensional laser scanner 22. Each three-dimensional laser scanner 22 is provided with multiple laser scanning cameras 23 distributed obliquely upward from bottom to top. The rotating motor 21 drives the three-dimensional laser scanner 22 to perform laser scanning on the welding workpiece above, and automatically draws a three-dimensional map of the lower part of the welding workpiece in the system, so as to judge the spatial distance between different positions of the welding workpiece and the clamping mechanism below, and automatically adjust the spatial position of the clamping mechanism.

[0038] A mounting bracket 24 is upwardly provided on both sides of the hydraulic lifting column 3 at the upper end of the base plate 1. Each mounting bracket 24 is slidably connected to a lifting bracket 25 that is horizontally arranged and can be lifted up and down. A chain 26 is connected to both sides of each mounting bracket 24 along its height direction. A drive shaft 27 that extends into the corresponding two chains 26 is rotatably connected at the upper and lower ends of each mounting bracket 24. A lifting drive motor 28 is installed at the lower part of one side of each mounting bracket 24. The power output shaft of each lifting drive motor 28 is connected to one end of one of the drive shafts 27. A drive sprocket 29 is provided at both ends of each drive shaft 27 that engages with one end of the corresponding chain 26. Two side slides 30 are provided on the side of each mounting bracket 24 facing the corresponding lifting bracket 25, which respectively cooperate with the corresponding chain 26. Each lifting bracket 25 is connected to the corresponding chain 26 in the corresponding side slide 30, so that the lifting bracket 25 can be driven to rise and fall by the operation of the lifting drive motor 28.

[0039] Each lifting frame 25 is connected to one side of the middle part of the base plate 1 with a telescopic mechanism that can be extended and retracted horizontally inward. Each telescopic mechanism includes a connecting plate 31 connected to the corresponding lifting frame 25 and a clamping plate 32 arranged opposite to the corresponding connecting plate 31. Each clamping block 40 is arranged on the corresponding clamping plate 32. A scissor-type telescopic mechanism 33 is connected between each connecting plate 31 and the corresponding clamping plate 32. A hydraulic telescopic drive rod 34 is installed in each scissor-type telescopic mechanism 33. The hydraulic telescopic drive rod 34 is extended and retracted to drive the scissor-type telescopic mechanism 33 to extend and retract.

[0040] Each mounting frame 24 is provided with a central slide groove 35 arranged along its height direction in the middle part of the side facing the corresponding lifting frame 25. Each lifting frame 25 is provided with a sliding block 36 that is slidably connected to the corresponding central slide groove 35. A horizontal rotation hole (omitted in the figure) is provided inwardly through each lifting frame 25 and the corresponding sliding block 36. Each telescopic mechanism is provided with a horizontal rotating shaft (omitted in the figure) that is rotatably connected to the corresponding horizontal rotation hole. Each horizontal rotating shaft passes through the corresponding horizontal rotation hole and is connected to a second worm gear 37 located in the corresponding mounting frame 24. Each sliding block 36 is rotatably connected to a second worm 38 that meshes with the corresponding second worm gear 37. Each sliding block 36 is installed with a second drive motor 39 for driving the corresponding second worm gear 38 to rotate. When the second drive motor 39 is working, it can drive the telescopic mechanism to rotate.

[0041] Each telescopic mechanism is provided with two oppositely arranged clamping blocks 40 on the side away from the corresponding lifting frame 25. Each clamping block 40 is provided with a plurality of telescopic holes 41 inwardly on the side away from the corresponding telescopic mechanism. Each clamping block 40 is provided with a ventilation cavity 42 connected to each telescopic hole 41 away from the corresponding limit cover 47. The outer side of each clamping block 40 is provided with a ventilation hole 5043 connected to the corresponding ventilation cavity 42. A sliding shaft 44 is slidably connected in each telescopic hole 41. A supporting rod is provided between each sliding shaft 44 and the bottom of the corresponding telescopic hole 41. Support spring 45, one end of the support spring 45 directly extends into the bottom of the ventilation cavity 42, each sliding shaft 44 is provided with a clamping shaft 46 with a smaller inner diameter outward, and each clamping block 40 is connected to a limit cover plate 47 on the side away from the corresponding telescopic mechanism, and each limit cover plate 47 is provided with a plurality of limit holes 48 that are slidably connected to the clamping shaft 46 in a one-to-one correspondence. The inner diameter of each limit hole 48 is equal to the inner diameter of the clamping shaft 46. When the clamping shaft 46 contacts an object, the object can push the clamping shaft 46 to compress the support spring 45, so that the clamping shaft 46 retracts into the telescopic hole 41.

[0042] Working principle: Before welding, the workpiece to be welded is first lifted to the top of the base plate 1 by a lifting device. After adjusting the position, the workpiece is slowly lowered, and the motor 21 is rotated to drive the three-dimensional laser scanner 22 to rotate and scan the workpiece above. The processing system automatically avoids the obstruction of the hydraulic lifting column 3 to determine the spatial distance between different positions of the welding workpiece and the clamping mechanism below.

[0043] The hydraulic lifting column 3 is controlled to rise and fall based on the automatically determined spatial distance and position. Simultaneously, the first drive motor 7 drives the hydraulic lifting column 3 to rotate based on the shape of the workpiece, allowing the two clamps 12 to clamp the workpiece. The three electric telescopic rods 10 cooperate to extend and retract, achieving adjustment of the telescopic motor 11 and the angle of the clamping mechanism. Ultimately, the frame structure of the welded workpiece falls between the corresponding two clamps 12. The telescopic motor 11 shortens, causing the two clamps 12 to rotate inward to clamp the workpiece frame. Similarly, weldments that need to be welded to the workpiece also use the above method, with the clamps 12 of the clamping mechanism clamping the weldment. When the welded workpiece needs to be released, the telescopic motor 11 simply extends to push the two clamps 12 to rotate outward to release the workpiece frame.

[0044] During the welding process, if the welding workpiece needs to be rotated and turned over, the lifting drive motor 28 drives the lifting frame 25 to rise to the same height as the welding workpiece, and the second drive motor 39 drives the telescopic mechanism to rotate to match the inclination angle on both sides of the welding workpiece. The telescopic mechanism extends, so that the clamping block 40 gradually approaches the welding workpiece. After the clamping shaft 46 on the clamping block 40 contacts the edge of the workpiece, it pushes the clamping shaft 46 to compress the support spring 45, so that the clamping shaft 46 retracts into the telescopic hole 41. The remaining clamping shaft 46 is stuck on both sides of the welding workpiece to effectively fix the welding workpiece. Then, the second drive motor 39 is used to drive the overall rotation as needed. When the welding workpiece needs to be released, the telescopic mechanism only needs to be shortened to gradually retract the clamping shaft 46 from the welding workpiece, and the clamping shaft 46 in the telescopic hole 41 is reset under the action of the support spring 45.

[0045] Example 2, refer to Figure 9-10 The technical features of Example 2 that are the same as those of Example 1 are not repeated here. The different technical features are as follows: each clamping mechanism includes a piston cylinder 49 located at the upper end of the corresponding telescopic motor 11 and connected thereto, a vent hole 5043 communicating with the outside is opened at the lower part of the piston cylinder 49, a piston 51 is slidably connected in each piston cylinder 49, the telescopic shaft of each telescopic motor 11 is connected to a piston shaft 52 that extends into the corresponding piston cylinder 49 and is connected to the corresponding piston 51, a suction cup 53 is provided at the upper end of each piston cylinder 49, and a suction hole 54 communicating with the upper part of the corresponding piston cylinder 49 is opened in the middle part of each suction cup 53.

[0046] For a plate-shaped welding workpiece, when the lower side of the welding workpiece contacts the suction cup 53, the telescopic motor 11 shortens, causing the piston 51 to move upward, extracting the air between the suction cup 53 and the welding workpiece, thereby achieving negative pressure fixation of the welding workpiece. When the welding workpiece needs to be released, the telescopic motor 11 is directly extended to push the piston 51 to push the air into the suction cup 53, so that the suction cup 53 can release the welding workpiece.

[0047] It should also be noted that all references to "disposed" and similar descriptors in this application (especially in this specification) express that two structures have or exist in a connection relationship. However, the specific means by which the two structures are connected are not particularly limited, and are generally conventional connection means. In other words, such means should be understood as existing in the art and do not require further elaboration. For example, "n is disposed on m" simply expresses that structure n is present on structure m, while the two are specifically connected by welding, riveting, adhesive bonding, or integral molding, all of which are within the scope of protection of this application. Another example is "y is rotatably disposed on x" simply expresses that y and x are rotatable relative to each other, while whether the two are connected by a bearing, y directly passes through x and is rotatably connected to x, or other feasible methods are all within the scope of protection of this application.

[0048] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An efficient welding positioning auxiliary system, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is provided with a plurality of hydraulic lifting columns (3) arranged upward, the upper end of each hydraulic lifting column (3) is provided with a lower connecting platform (8), the upper end of each lower connecting platform (8) is connected to an upper connecting platform (9), three electric telescopic rods (10) are provided between each lower connecting platform (8) and the corresponding upper connecting platform (9), the upper end of each upper connecting platform (9) is provided with a telescopic motor (11), and a clamping mechanism is provided above each telescopic motor (11), and each clamping mechanism is driven and operated by the corresponding telescopic motor (11); The upper end of the base plate (1) is provided with mounting frames (24) on both sides of the hydraulic lifting column (3), each mounting frame (24) is slidably connected to a lifting frame (25) capable of being lifted up and down, each mounting frame (24) is provided with a lifting drive motor (28) capable of driving the corresponding lifting frame (25) to be lifted up and down, each lifting frame (25) is connected to a telescopic mechanism on one side of the middle of the base plate (1), each telescopic mechanism is provided with a clamping block (40) on the side away from the corresponding lifting frame (25), and each clamping block (40) is provided with a plurality of clamping blocks inwardly on the side away from the corresponding telescopic mechanism. A telescopic hole (41) is provided, and a sliding shaft (44) is slidably connected in each telescopic hole (41). A supporting spring (45) is provided between each sliding shaft (44) and the bottom of the corresponding telescopic hole (41). Each sliding shaft (44) is provided with a clamping shaft (46) with a smaller inner diameter outwardly. A side of each clamping block (40) away from the corresponding telescopic mechanism is connected to a limiting cover plate (47). Each limiting cover plate (47) is provided with a plurality of limiting holes (48) slidably connected to the clamping shaft (46) in a one-to-one corresponding manner. The inner diameter of each limiting hole (48) is equal to the inner diameter of the clamping shaft (46).

2. The high-efficiency welding positioning auxiliary system according to claim 1, characterized in that: The upper end of the base plate (1) is provided with a plurality of support sleeves (2) arranged upward and corresponding to the hydraulic lifting columns (3) in a one-to-one manner. Each hydraulic lifting column (3) is rotatably connected to the corresponding support sleeve (2). A rotating sleeve (4) is provided at the lower portion of each support sleeve (2). The lower end of each hydraulic lifting column (3) is connected to a first worm gear (5) in the corresponding rotating sleeve (4). A first worm (6) meshing with the corresponding first worm gear (5) is rotatably connected to the inside of each rotating sleeve (4). A first driving motor (7) for driving the corresponding first worm gear (6) to rotate is installed outside each rotating sleeve (4).

3. The high-efficiency welding positioning auxiliary system according to claim 1, characterized in that: Both sides of each mounting frame (24) are connected to chains (26) arranged along the height direction thereof, and the upper and lower ends of each mounting frame (24) are rotatably connected to drive shafts (27) extending into the corresponding two chains (26), and the power output shaft of each lifting drive motor (28) is connected to one end of one of the drive shafts (27), and both ends of each drive shaft (27) are provided with a drive sprocket (29) meshed with one end of the corresponding chain (26), and each mounting frame (24) is provided with two side chutes (30) respectively matching the corresponding chains (26) on one side facing the corresponding lifting frame (25), and each lifting frame (25) is connected to the corresponding chain (26) in the corresponding side chutes (30).

4. The high-efficiency welding positioning auxiliary system according to claim 1, characterized in that: Each mounting frame (24) is provided with a middle slide groove (35) arranged along its height direction in the middle part of the side facing the corresponding lifting frame (25), each lifting frame (25) is provided with a sliding block (36) slidably connected to the corresponding middle slide groove (35), and a horizontal rotation hole is provided through each lifting frame (25) and the corresponding sliding block (36). Each telescopic mechanism is provided with a horizontal rotating shaft rotatably connected to the corresponding horizontal rotation hole, each horizontal rotating shaft is connected to the second worm gear (37) located in the corresponding mounting frame (24) through the corresponding horizontal rotation hole, each sliding block (36) is rotatably connected to a second worm (38) meshing with the corresponding second worm gear (37), and each sliding block (36) is installed with a second drive motor (39) for driving the corresponding second worm gear (38) to rotate.

5. The high-efficiency welding positioning auxiliary system according to claim 1, characterized in that: Each telescopic mechanism includes a connecting plate (31) connected to a corresponding lifting frame (25), a clamping plate (32) arranged opposite to the corresponding connecting plate (31), each clamping block (40) is arranged on the corresponding clamping plate (32), a scissor-type telescopic mechanism (33) is connected between each connecting plate (31) and the corresponding clamping plate (32), and a hydraulic telescopic drive rod (34) is installed in each scissor-type telescopic mechanism (33).

6. The high-efficiency welding positioning auxiliary system according to claim 1, characterized in that: Each clamping block (40) is provided with a ventilation cavity (42) communicating with each telescopic hole (41) thereof at a position away from the corresponding limiting cover plate (47), and a ventilation hole (50) (43) communicating with the corresponding ventilation cavity (42) is provided on the outer side of each clamping block (40).

7. The high-efficiency welding positioning auxiliary system according to claim 1, characterized in that: A plurality of rotating motors (21) are mounted upwardly on the upper end of the base plate (1), and the upper end of the power output shaft of each rotating motor (21) is connected to a three-dimensional laser scanner (22). Each three-dimensional laser scanner (22) is provided with a plurality of laser scanning cameras (23) distributed obliquely upward from bottom to top.

8. An efficient welding positioning auxiliary system according to any one of claims 1 to 7, characterized in that: Each clamping mechanism includes two clamping pieces (12) arranged opposite to each other, each clamping piece (12) is provided with a rotating arm (14) in the direction of the corresponding telescopic motor (11), the telescopic shaft of each telescopic motor (11) is connected to a connecting rotating shaft (15), each rotating arm (14) is provided with a connecting sleeve (16) rotatably connected to the corresponding connecting rotating shaft (15) on a side away from the corresponding clamping piece (12), each clamping piece (12) is provided with a limiting strip (17) arranged along its height direction on a side away from each other, each limiting strip (17) is provided with a limiting strip-shaped hole (18) arranged along its height direction, and each upper connecting platform (9) is provided with two pull strips (19) corresponding to the limit strips (17) one by one upwardly, and each pull strip (19) is provided with a pull shaft (20) slidably connected to the corresponding limit strip-shaped hole (18).

9. The high-efficiency welding positioning auxiliary system according to claim 8, characterized in that: A rubber gasket (13) is provided on the inner side of each clip (12).

10. The high-efficiency welding positioning auxiliary system according to any one of claims 1 to 7, characterized in that: Each clamping mechanism includes a piston cylinder (49) located at the upper end of the corresponding telescopic motor (11) and connected thereto, a piston (51) is slidably connected in each piston cylinder (49), a telescopic shaft of each telescopic motor (11) is connected to a piston shaft (52) extending into the corresponding piston cylinder (49) and connected to the corresponding piston (51), a suction cup (53) is provided at the upper end of each piston cylinder (49), and a suction hole (54) is opened in the middle of each suction cup (53) and is connected to the upper part of the corresponding piston cylinder (49).

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