A welding robot mobile work platform

Abstract

The application provides a welding robot mobile operation platform and belongs to the technical field of welding robots, which comprises a first track, one side of the first track is provided with a second track, the upper side of the first track is provided with a moving plate, the upper side of the moving plate is provided with a lifting plate, and the lower side of the lifting plate is provided with a lifting mechanism. Through the first track, the second track, the moving plate, the first motor, the transmission gear, the transmission rack and the track changing mechanism, the track in the operation area is laid, the moving operation platform can be accurately moved along the track, the welding robot can be accurately transported to the specified welding position, the welding robot moving operation is realized, the welding robot can be changed track so that the welding robot can move on the first track and the second track respectively, the operation range of the welding robot is significantly improved, and the problem that the welding robot cannot be changed track and moved in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of welding robot technology, and more specifically, to a mobile operating platform for welding robots. Background Technology

[0002] Currently, welding, as a key joining process, is widely used in many fields such as automobile manufacturing, shipbuilding, aerospace, and construction engineering in modern manufacturing. Welding quality directly affects the structural strength, safety, and service life of products, thus placing extremely high demands on the precision, efficiency, and quality stability of the welding process.

[0003] With the continuous development of industrial automation technology, welding robots have emerged. Welding robots have advantages such as high welding precision, stable quality, high production efficiency, and continuous operation, and can effectively solve the problems existing in manual welding.

[0004] Currently, most welding robots are typically installed in a fixed manner, meaning they are fixed at a specific workstation and can only weld workpieces within a limited area. This fixed installation method restricts the working range of the welding robot. When the workpiece to be welded is large or has a complex shape, the position of the workpiece needs to be frequently adjusted or the welding robot needs to be rearranged, which not only increases production preparation time and cost but also reduces production efficiency. Existing technologies also use tracks to move the welding robot to form a mobile work platform, but this cannot adjust the working height of the welding robot according to the height of the workpiece, limiting its application range. In addition, impurities easily accumulate on the racks inside the tracks, making cleaning difficult and potentially affecting the smoothness of the platform's movement. Furthermore, existing technologies can only move the welding robot on one track, making it inconvenient to switch tracks to another, thus limiting the working range of the welding robot.

[0005] Therefore, we have made improvements to this and proposed a mobile operation platform for welding robots. Summary of the Invention

[0006] The purpose of this invention is to address the existing problems of inconvenience in adjusting the height of welding robots, inconvenience in cleaning the tracks, and inconvenience in changing tracks.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0008] A mobile welding robot platform was developed to address these issues.

[0009] The present invention is as follows:

[0010] The system includes a first track, a second track on one side of the first track, a movable plate on the upper side of the first track, a lifting plate on the upper side of the movable plate, a lifting mechanism on the lower side of the lifting plate, a welding robot body mounted on the upper surface of the lifting plate, two slide blocks symmetrically and fixedly connected to the lower surface of the movable plate, a first slide rail matching the slide blocks fixedly connected to the upper surface of both the first and second tracks, a first motor fixedly connected to the upper surface of the movable plate, a rotating shaft fixedly connected to the drive end of the first motor through the movable plate, a transmission gear fixedly connected to the rotating shaft, transmission racks matching the transmission gears fixedly connected to the inner sidewalls of the first and second tracks respectively, a cleaning mechanism on the lower side of the movable plate, and a track-changing mechanism between the first and second tracks. The track-changing mechanism includes a base plate disposed between the first and second tracks, a hydraulic cylinder fixedly connected to the base plate, a movable seat fixedly connected to the drive end of the hydraulic cylinder, a guide post slidably connected to the sidewall of the base plate, the inner end of the guide post fixedly connected to the movable seat, and a fixed center of the upper surface of the movable seat. A bearing is fixedly connected to the inner wall of the bearing's inner ring. A track-changing shaft is fixedly connected to the track-changing shaft. A worm gear is fixedly connected to the track-changing shaft. Two connecting seats are fixedly connected to the movable seat. A worm gear, meshing with the worm gear, is rotatably connected between the two connecting seats. A third motor is fixedly connected to one of the connecting seats. The drive end of the third motor is fixedly connected to the shaft end of the worm gear. A displacement frame is fixedly connected to the top of the track-changing shaft. Two support columns are symmetrically connected to the lower end of the displacement frame. A second screw is rotatably connected to one end of the displacement frame. A fourth motor is fixedly connected to the frame. The drive end of the fourth motor is fixedly connected to the shaft end of the second screw. A push-pull block is threadedly connected to the second screw. A guide rod is slidably connected to the end of the push-pull block away from the second screw. The two ends of the guide rod are fixedly connected to the side wall of the shifting frame. A bearing frame is fixedly connected to the top of the push-pull block. The upper end of the bearing frame is symmetrical and fixedly connected to two second slide rails that are respectively matched with the slide block. A connecting rack is fixedly connected inside the bearing frame. A first limiting block is fixedly connected to the outer end of the bearing frame by an internal hexagonal bolt.

[0011] As a preferred embodiment of the present invention, the lifting mechanism includes two sets of fixed blocks symmetrically fixed to the upper surface of the movable plate. A first screw is rotatably connected between each set of fixed blocks. A second motor is fixedly connected to one of the inner fixed blocks, and the driving end of the second motor is fixedly connected to its shaft end near the first screw. Two sets of connecting heads are symmetrically connected to the lower end of the lifting plate, and a sliding rod is fixedly connected between each set of connecting heads. A lifting frame is provided between the first screw and the sliding rod. A first fixed seat and a movable block are rotatably connected to the bottom two ends of the lifting frame, respectively. The bottom end of the first fixed seat is fixedly connected to the movable plate, and the movable block is threadedly connected to the first screw. A second fixed seat and a slider are rotatably connected to the top two ends of the lifting frame, respectively. The top end of the second fixed seat is fixedly connected to the lifting plate, and the slider is slidably connected to the sliding rod. The outer end of the first screw passes through the outer fixed block and is fixedly connected to a first bevel gear. Connecting blocks are fixedly connected to the side walls of the outer fixed blocks. A transmission rod is rotatably connected between the connecting blocks, and two second bevel gears are fixedly connected to the transmission rod, respectively meshing with the first bevel gear.

[0012] As a preferred technical solution of the present invention, the cleaning mechanism includes a first gear disposed on the upper side of the transmission gear, the first gear being fixedly connected to the rotating shaft, and two connecting shafts symmetrically and rotatably connected to the moving plate. A second gear that meshes with the first gear is fixedly connected to each of the two connecting shafts. An installation head is fixedly connected to the bottom end of each connecting shaft. A cleaning brush is sleeved on the installation head, and a nut is provided on the lower side of the cleaning brush. The nut is threadedly connected to the installation head.

[0013] As a preferred technical solution of the present invention, an assembly block is fixedly connected to the upper end surface of the base plate, and a connecting plate is fixedly connected to the assembly block by bolts. The end of the connecting plate away from the assembly block is fixedly connected to the first track by bolts.

[0014] As a preferred technical solution of the present invention, two sets of connecting ears are symmetrically and fixedly connected on the front and rear side walls of the base plate. Each connecting ear is provided with a first threaded post. The bottom end of the first threaded post is fixedly connected with a first support foot. Two first nuts are symmetrically and threadedly connected on the first threaded post.

[0015] As a preferred technical solution of the present invention, a set of supports are fixedly connected at equal intervals on the outer side walls of the first track and the second track. The supports are provided with second threaded columns. The bottom end of the second threaded column is fixedly connected with a second support foot. The second threaded column is symmetrically connected with two second nuts.

[0016] As a preferred technical solution of the present invention, the outer ends of the first track and the second track are both fixedly connected to the second limiting block by hexagonal socket bolts, and a connecting frame is provided between the first track and the second track. The two ends of the connecting frame are fixedly connected to the first track and the second track by bolts respectively.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In the solution of this invention:

[0019] 1. By setting up a first track, a second track, a moving plate, a first motor, a transmission gear, a transmission rack, and a track-changing mechanism, the track is laid in the working area, and the mobile working platform can move precisely along the track to accurately transport the welding robot to the designated welding position, realizing the mobile operation of the welding robot. The welding robot can be track-changed so that it can move on the first track and the second track respectively, significantly improving the working range of the welding robot and solving the problem of inconvenience in track-changing and moving the welding robot in the prior art.

[0020] 2. Through the set lifting and cleaning mechanisms, the cleaning brush is driven to clean the rack during the movement of the moving plate, ensuring the cleanliness of the rack and the smoothness of the movement. It also allows for flexible adjustment of the height of the welding robot, improving the application range of the welding robot and solving the problems of inconvenience in cleaning the track and adjusting the height of the welding robot in the existing technology. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 A structural schematic diagram from another overall perspective of the present invention;

[0023] Figure 3 Schematic diagrams of the first and second tracks provided for this invention;

[0024] Figure 4 A schematic diagram of the connection structure between the transmission gear and the transmission rack provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the lifting mechanism provided by the present invention;

[0026] Figure 6 A schematic diagram of the cleaning mechanism provided by the present invention;

[0027] Figure 7 This is a schematic diagram of the track-changing mechanism provided by the present invention;

[0028] Figure 8An exploded structural diagram of the track-changing mechanism provided by the present invention;

[0029] Figure 9 Provided by the present invention Figure 7 A front view structural diagram;

[0030] Figure 10 Provided by the present invention Figure 1 A frontal view of the structure.

[0031] The image shows:

[0032] 1. First track; 2. Second track; 3. Moving plate; 4. Lifting plate; 5. Lifting mechanism; 501. Fixed block; 502. First screw; 503. Second motor; 504. Connector; 505. Slide rod; 506. Lifting frame; 507. First fixed seat; 508. Moving block; 509. Second fixed seat; 5010. Slider; 5011. First bevel gear; 5012. Connecting block; 5013. Transmission rod; 5014. Second bevel gear; 6. Welding robot body; 7. Slide seat; 8. First slide rail; 9. First motor; 10. Rotating shaft; 11. Transmission gear; 12. Transmission rack; 13. Cleaning mechanism; 1301. First gear; 1302. Connecting shaft; 1303. Second gear; 1304. Mounting head; 1305. Cleaning brush; 1306. Nut; 14. Track changing mechanism; 1401 1402. Base plate; 1403. Hydraulic cylinder; 1404. Moving seat; 1405. Guide column; 1406. Bearing; 1407. Rail changing shaft; 1408. Worm gear; 1409. Connecting seat; 1410. Worm; 1410. Third motor; 1411. Shifting frame; 1412. Support column; 1413. Second screw; 1414. Fourth motor; 1415. Push-pull block; 1416. Guide rod; 1417. 1418. Load-bearing frame; 1419. Second slide rail; 1420. Connecting rack; 1421. First limiting block; 1422. Assembly block; 1423. Connecting plate; 1424. Connecting lug; 1425. First threaded post; 1426. First support foot; 1427. First nut; 15. Support; 16. Second threaded post; 17. Second support foot; 18. Second nut; 19. Second limiting block; 20. Connecting frame. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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.

[0034] like Figures 1-10As shown, this embodiment proposes a mobile working platform for a welding robot, including a first track 1, a second track 2 on one side of the first track 1, a movable plate 3 on the upper side of the first track 1, a lifting plate 4 on the upper side of the movable plate 3, a lifting mechanism 5 on the lower side of the lifting plate 4, a welding robot body 6 mounted on the upper surface of the lifting plate 4, two slide blocks 7 symmetrically and fixedly connected to the lower surface of the movable plate 3, a first slide rail 8 matching the slide blocks 7 fixedly connected to the upper surface of both the first track 1 and the second track 2, a first motor 9 fixedly connected to the upper surface of the movable plate 3, a rotating shaft 10 fixedly connected to the drive end of the first motor 9 through the movable plate 3, and a transmission gear 11 fixedly connected to the rotating shaft 10. A transmission rack 12, matching the transmission gear 11, is fixedly connected to the inner sidewalls of the first track 1 and the second track 2, respectively. A cleaning mechanism 13 is provided on the lower side of the moving plate 3. A track-changing mechanism 14 is provided between the first track 1 and the second track 2. The track-changing mechanism 14 includes a base plate 1401 disposed between the first track 1 and the second track 2. A hydraulic cylinder 1402 is fixedly connected to the base plate 1401. A moving seat 1403 is fixedly connected to the drive end of the hydraulic cylinder 1402. A guide post 1404 is slidably connected to the sidewall of the base plate 1401. The inner end of the guide post 1404 is fixedly connected to the moving seat 1403. A bearing 1405 is fixedly connected to the center of the upper end face of the moving seat 1403. A bearing 1405 is fixedly connected to the inner sidewall of the inner ring of the bearing 1405. A guide shaft 1406 is fixedly connected, and a worm gear 1407 is fixedly connected to the guide shaft 1406. Two connecting seats 1408 are fixedly connected to the movable seat 1403. A worm 1409, which meshes with the worm gear 1407, is rotatably connected between the two connecting seats 1408. A third motor 1410 is fixedly connected to one of the connecting seats 1408. The drive end of the third motor 1410 is fixedly connected to the shaft end of the worm 1409. A shift frame 1411 is fixedly connected to the top of the guide shaft 1406. Two support columns 1412 are symmetrically connected to the lower end of the shift frame 1411. A second screw 1413 is rotatably connected to one end of the shift frame 1411. A fourth screw 1413 is fixedly connected to the shift frame 1411. The drive end of the fourth motor 1414 is fixedly connected to the shaft end of the second screw 1413. A push-pull block 1415 is threadedly connected to the second screw 1413. A guide rod 1416 is slidably connected to the end of the push-pull block 1415 away from the second screw 1413. The two ends of the guide rod 1416 are fixedly connected to the side wall of the shift frame 1411. A bearing frame 1417 is fixedly connected to the top of the push-pull block 1415. The upper end of the bearing frame 1417 is symmetrical and fixedly connected to two second slide rails 1418 that are respectively matched with the slide block 7. A connecting rack 1419 is fixedly connected inside the bearing frame 1417. A first limit block 1420 is fixedly connected to the outer end of the bearing frame 1417 by an internal hex bolt.

[0035] The first motor 9 drives the rotating shaft 10 and the transmission gear 11 to rotate. The rotation of the transmission gear 11, in conjunction with the transmission rack 12, enables the moving plate 3 to move, thus allowing the welding robot to perform mobile operations. The first track 1 and the second track 2 allow the welding robot to move on them, increasing the working range. The hydraulic cylinder 1402 drives the moving seat 1403 to move, thus providing space for rotation. The third motor 1410 drives the worm gear 1409 to rotate, and the rotation of the worm gear 1409 drives the worm wheel 14. The 07 and the track-changing shaft 1406 rotate to adjust the direction of the shifting frame 1411, thereby facilitating docking with the second track 2. The fourth motor 1414 drives the second screw 1413 to rotate, and the rotation of the second screw 1413 can drive the push-pull block 1415 to move. The movement of the push-pull block 1415 can shift the bearing frame 1417, thereby facilitating the docking of the track. The second slide rail 1418 and the connecting rack 1419 facilitate the movement of the moving plate 3 onto it, thereby facilitating the transmission of the working platform.

[0036] like Figure 1 , Figure 5 and Figure 6As shown, in a preferred embodiment, based on the above method, the lifting mechanism 5 further includes two sets of fixing blocks 501 symmetrically fixed to the upper surface of the moving plate 3. A first screw 502 is rotatably connected between each set of fixing blocks 501. A second motor 503 is fixedly connected to one of the inner fixing blocks 501, and the driving end of the second motor 503 is fixedly connected to its shaft end near the first screw 502. Two sets of connectors 504 are symmetrically and fixedly connected to the lower surface of the lifting plate 4. Each set of connectors 504 is further... A sliding rod 505 is fixedly connected. A lifting frame 506 is provided between the first screw 502 and the sliding rod 505. A first fixed seat 507 and a moving block 508 are rotatably connected to the bottom two ends of the lifting frame 506, respectively. The bottom end of the first fixed seat 507 is fixedly connected to the moving plate 3, and the moving block 508 is threadedly connected to the first screw 502. A second fixed seat 509 and a slider 5010 are rotatably connected to the top two ends of the lifting frame 506, respectively. The top end of the second fixed seat 509 is fixedly connected to the lifting plate 4, and the slider 5010 is connected to the sliding rod 505. 5. A sliding connection is established. The outer end of the first screw 502 passes through the outer fixing block 501 and is fixedly connected to the first bevel gear 5011. Connecting blocks 5012 are fixedly connected to the side walls of the outer fixing block 501. A transmission rod 5013 is rotatably connected between the connecting blocks 5012. Two second bevel gears 5014 are fixedly connected to the transmission rod 5013 and are respectively meshed with the first bevel gear 5011. The first screw 502 is driven by the second motor 503, and the rotation of the first screw 502 drives the first bevel gear 5011 connected to it. 011 rotates, and the rotation of the first bevel gear 5011 drives the second bevel gear 5014 connected to it to rotate, thereby causing the transmission rod 5013 and another second bevel gear 5014 to rotate, which in turn causes the other first bevel gear 5011 and the first screw 502 to rotate synchronously. When the first screw 502 rotates, the moving block 508 moves along the axial direction of the first screw 502, thereby changing the shape of the lifting frame 506, thereby pushing the lifting plate 4 to move up and down, realizing the lifting function of the welding robot body 6.

[0037] like Figure 1 and Figure 6As shown, in a preferred embodiment, based on the above method, the cleaning mechanism 13 further includes a first gear 1301 disposed on the upper side of the transmission gear 11. The first gear 1301 is fixedly connected to the rotating shaft 10. Two connecting shafts 1302 are symmetrically and rotatably connected on the movable plate 3. A second gear 1303 that meshes with the first gear 1301 is fixedly connected to each of the two connecting shafts 1302. A mounting head 1304 is fixedly connected to the bottom end of each connecting shaft 1302. A cleaning brush 1305 is sleeved on the mounting head 1304. A nut 1306 is provided on the lower side of the cleaning brush 1305. 1306 is threadedly connected to the mounting head 1304; when the rotating shaft 10 rotates, the first gear 1301 rotates accordingly. The rotation of the first gear 1301 will drive the two second gears 1303 to rotate, which in turn will cause the connecting shaft 1302 to rotate. The connecting shaft 1302 drives the mounting head 1304 and the cleaning brush 1305 to rotate. During the rotation, the cleaning brush 1305 can clean the debris on the rack, keep the track clean, and ensure that the moving plate 3 moves smoothly. The nut 1306 is threadedly connected to the mounting head 1304, which can easily install and remove the cleaning brush 1305, and facilitate the replacement and maintenance of the cleaning brush 1305.

[0038] like Figure 2 and Figure 8 As shown, in a preferred embodiment, based on the above method, an assembly block 1421 is fixedly connected to the upper end face of the base plate 1401. The assembly block 1421 is fixedly connected to a connecting plate 1422 by bolts. The end of the connecting plate 1422 away from the assembly block 1421 is fixedly connected to the first track 1 by bolts. The connection between the base plate 1401 and the first track 1 is easily established through the connecting plate 1422 and the assembly block 1421, ensuring the stability of the track.

[0039] like Figure 1 and Figure 8 As shown, in a preferred embodiment, based on the above method, two sets of connecting ears 1423 are symmetrically and fixedly connected to the front and rear side walls of the base plate 1401. Each connecting ear 1423 is provided with a first threaded post 1424. The bottom end of the first threaded post 1424 is fixedly connected to a first support foot 1425. Two first nuts 1426 are symmetrically and threadedly connected to the first threaded post 1424. By rotating the first nuts 1426, the height of the first support foot 1425 can be adjusted so that the track changing mechanism 14 remains horizontal and stable, and the height of the base plate 1401 can be easily adjusted.

[0040] like Figure 1 and Figure 2As shown, in a preferred embodiment, based on the above method, a set of supports 15 are fixedly connected at equal intervals on the outer side walls of the first track 1 and the second track 2. The supports 15 are provided with second threaded posts 16. The bottom end of the second threaded posts 16 is fixedly connected with a second support foot 17. Two second nuts 18 are symmetrically threaded on the second threaded posts 16 to achieve support height adjustment. By rotating the second nuts 18, the height of the second support foot 17 can be adjusted to ensure the stability of the track.

[0041] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the outer ends of the first track 1 and the second track 2 are further fixedly connected to the second limiting block 19 by hexagonal socket head cap screws. A connecting frame 20 is provided between the first track 1 and the second track 2. The two ends of the connecting frame 20 are fixedly connected to the first track 1 and the second track 2 by bolts respectively. The connecting frame 20 can connect the first track 1 and the second track 2 to ensure the stability of the track. The second limiting block 19 prevents the moving plate 3 from slipping off the track and ensures the safety of operation.

[0042] Specifically, when using this welding robot mobile operation platform: First, to move the welding robot, the first motor 9 drives the rotating shaft 10 and the transmission gear 11 to rotate. The rotation of the transmission gear 11, in conjunction with the transmission rack 12, enables the moving plate 3 to move, thus allowing the welding robot to perform mobile operations. When the rotating shaft 10 rotates, the first gear 1301 rotates accordingly. The rotation of the first gear 1301 drives the two second gears 1303 to rotate, which in turn causes the connecting shaft 1302 to rotate. The connecting shaft 1302 drives the mounting head 1304 and the cleaning brush 1305 to rotate. The cleaning brush 1305... During rotation, debris on the rack can be cleaned. When the height of the welding robot needs to be adjusted, the second motor 503 drives the first screw 502. The rotation of the first screw 502 drives the first bevel gear 5011 connected to it to rotate. The rotation of the first bevel gear 5011 drives the second bevel gear 5014 connected to it to rotate, thereby causing the transmission rod 5013 and the other second bevel gear 5014 to rotate. This, in turn, causes the other first bevel gear 5011 and the first screw 502 to rotate synchronously. The rotation of the first screw 502 causes the moving block 508 to move axially along the first screw 502. The movement causes the shape of the lifting frame 506 to change, while the slider 5010 slides synchronously on the slide rod 505, thereby pushing the lifting plate 4 to move up and down, realizing the lifting function of the welding robot body 6. When the welding robot needs to move on the second track 2, the moving plate 3 is moved onto the support frame 1417, and then the hydraulic cylinder 1402 drives the moving seat 1403 to move outward, thereby moving the support frame 1417 and the welding robot above it outward to a preset distance. Then the third motor 1410 drives the worm gear 1409 to rotate, and the rotation of the worm gear 1409 can drive the worm wheel 14. The 07 and the changing axis 1406 rotate, thereby causing the bearing frame 1417 to rotate 90 degrees and stop. Then, the fourth motor 1414 drives the second screw 1413 to rotate. The rotation of the second screw 1413 can drive the push-pull block 1415 to move. The movement of the push-pull block 1415 can cause the bearing frame 1417 to shift, thereby causing the second slide rail 1418 and the connecting rack 1419 to dock with the first slide rail 8 and the transmission rack 12 on the second track 2. Then, the first motor 9 is started to move the moving plate 3 onto the second track 2, realizing the repositioning operation and significantly improving the working range of the welding robot.

[0043] All technical features in this embodiment can be freely combined according to actual needs.

[0044] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

Claims

1. A mobile working platform for a welding robot, comprising a first track (1), characterized in that, A second track (2) is provided on one side of the first track (1). A movable plate (3) is provided on the upper side of the first track (1). A lifting plate (4) is provided on the upper side of the movable plate (3). A lifting mechanism (5) is provided on the lower side of the lifting plate (4). A welding robot body (6) is installed on the upper end face of the lifting plate (4). Two slide blocks (7) are symmetrically and fixedly connected to the lower end face of the movable plate (3). A first slide rail (8) matching the slide block (7) is fixedly connected to the upper end face of both the first track (1) and the second track (2). A first motor (9) is fixedly connected to the upper end face of the movable plate (3). A rotating shaft (10) is fixedly connected to the driving end of the first motor (9) through the movable plate (3). A transmission gear (11) is fixedly connected to the shaft (10). A transmission rack (12) matching the transmission gear (11) is fixedly connected to the inner sidewalls of the first track (1) and the second track (2). A cleaning mechanism (13) is provided on the lower side of the moving plate (3). A track-changing mechanism (14) is provided between the first track (1) and the second track (2). The track-changing mechanism (14) includes a base plate (1401) set between the first track (1) and the second track (2). A hydraulic cylinder (1402) is fixedly connected to the base plate (1401). A moving seat (1403) is fixedly connected to the driving end of the hydraulic cylinder (1402). A guide post is slidably connected to the sidewall of the base plate (1401). 1404), the inner end of the guide post (1404) is fixedly connected to the movable seat (1403), a bearing (1405) is fixedly connected to the center of the upper end face of the movable seat (1403), a rail-changing shaft (1406) is fixedly connected to the inner side wall of the inner ring of the bearing (1405), a worm gear (1407) is fixedly connected to the rail-changing shaft (1406), two connecting seats (1408) are fixedly connected to the movable seat (1403), a worm (1409) that meshes with the worm gear (1407) is rotatably connected between the two connecting seats (1408), a third motor (1410) is fixedly connected to one of the connecting seats (1408), and the driving end of the third motor (1410) is... The top end of the guide changing shaft (1406) is fixedly connected to the shaft end of the worm gear (1409). A shift frame (1411) is fixedly connected to the top end of the shift frame (1411). Two support columns (1412) are fixedly connected to the lower end of the shift frame (1411). A second screw (1413) is rotatably connected to one end of the shift frame (1411). A fourth motor (1414) is fixedly connected to the shift frame (1411). The drive end of the fourth motor (1414) is fixedly connected to the shaft end of the second screw (1413). A push-pull block (1415) is threadedly connected to the second screw (1413). A guide rod (1416) is slidably connected to the end of the push-pull block (1415) away from the second screw (1413).The two ends of the guide rod (1416) are fixedly connected to the side walls of the shifting frame (1411), and the top of the push-pull block (1415) is fixedly connected to a bearing frame (1417). The upper end of the bearing frame (1417) is symmetrically connected to two second slide rails (1418) that are respectively matched with the slide block (7). A connecting rack (1419) is fixedly connected inside the bearing frame (1417), and the outer end of the bearing frame (1417) is fixedly connected to a first limiting block (1420) by an internal hexagonal bolt.

2. The welding robot mobile operation platform according to claim 1, characterized in that, The lifting mechanism (5) includes two sets of fixed blocks (501) symmetrically fixed to the upper surface of the movable plate (3). A first screw (502) is rotatably connected between each set of fixed blocks (501). A second motor (503) is fixedly connected to one of the inner fixed blocks (501). The driving end of the second motor (503) is fixedly connected to its shaft end near the first screw (502). Two sets of connectors (504) are symmetrically and fixedly connected to the lower surface of the lifting plate (4). A slide rod (505) is fixedly connected between each set of connectors (504). A lifting frame (506) is provided between the first screw (502) and the slide rod (505). A first fixed seat (507) and a movable block (508) are rotatably connected to the bottom ends of the lifting frame (506). The bottom of the first fixed seat (507) is... The end is fixedly connected to the moving plate (3), the moving block (508) is threadedly connected to the first screw (502), the top two ends of the lifting frame (506) are respectively rotatably connected to the second fixed seat (509) and the slider (5010), the top end of the second fixed seat (509) is fixedly connected to the lifting plate (4), the slider (5010) is slidably connected to the slide rod (505), the outer end of the first screw (502) passes through the outer fixed block (501) and is fixedly connected to the first bevel gear (5011), the side wall of the outer fixed block (501) is fixedly connected to the connecting blocks (5012), the connecting blocks (5012) are rotatably connected to the transmission rod (5013), and the transmission rod (5013) is fixedly connected to two second bevel gears (5014) that are respectively meshed with the first bevel gear (5011).

3. The mobile operating platform for a welding robot according to claim 1, characterized in that, The cleaning mechanism (13) includes a first gear (1301) disposed on the upper side of the transmission gear (11). The first gear (1301) is fixedly connected to the rotating shaft (10). Two connecting shafts (1302) are symmetrically and rotatably connected on the moving plate (3). A second gear (1303) that meshes with the first gear (1301) is fixedly connected to each of the two connecting shafts (1302). An installation head (1304) is fixedly connected to the bottom end of each connecting shaft (1302). A cleaning brush (1305) is sleeved on the installation head (1304). A nut (1306) is provided on the lower side of the cleaning brush (1305). The nut (1306) is threadedly connected to the installation head (1304).

4. The welding robot mobile operation platform according to claim 1, characterized in that, An assembly block (1421) is fixedly connected to the upper end face of the base plate (1401). A connecting plate (1422) is fixedly connected to the assembly block (1421) by bolts. The end of the connecting plate (1422) away from the assembly block (1421) is fixedly connected to the first track (1) by bolts.

5. A mobile operating platform for a welding robot according to claim 1, characterized in that, The base plate (1401) has two sets of connecting ears (1423) symmetrically and fixedly connected on its front and rear side walls. Each connecting ear (1423) is provided with a first threaded post (1424). The bottom end of the first threaded post (1424) is fixedly connected with a first support foot (1425). The first threaded post (1424) has two first nuts (1426) symmetrically and threadedly connected on it.

6. The mobile operating platform for a welding robot according to claim 1, characterized in that, A set of supports (15) are fixedly connected at equal intervals on the outer side walls of the first track (1) and the second track (2). A second threaded post (16) is provided in the support (15). A second support foot (17) is fixedly connected to the bottom end of the second threaded post (16). Two second nuts (18) are symmetrically threaded on the second threaded post (16).

7. A mobile operating platform for welding robots according to claim 1, characterized in that, The outer ends of the first track (1) and the second track (2) are fixedly connected to the second limiting block (19) by internal hex bolts. A connecting frame (20) is provided between the first track (1) and the second track (2). The two ends of the connecting frame (20) are fixedly connected to the first track (1) and the second track (2) by bolts respectively.

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