Movable laser repairing equipment

Abstract

The invention discloses movable laser repairing equipment, and relates to the technical field of laser welding repairing, the movable laser repairing equipment comprises a walking mechanism, a supporting mechanism and a sliding mechanism, a base is fixed above the walking mechanism, the supporting mechanism is fixed above the base, the sliding mechanism is arranged on one side above the supporting mechanism, and a mechanical arm is installed on the sliding mechanism; a welding gun is installed at one end of the mechanical arm. The wheels on the left side and the right side of the walking mechanism are linked through a bevel gear structure, the multiple wheels can tightly grasp the ground at the same time, the road holding force is higher, different road conditions can be adapted, outdoor operation is facilitated, an extension table in the supporting mechanism can be opened outwards, a larger working space is provided, and the working efficiency is improved. In the welding process, the welding gun can be moved front, back, left and right through the sliding mechanism, a threaded rod in the sliding mechanism can drive a gear to move and rotate, meanwhile, the gear can be clamped and positioned in the static state, the welding gun is fixed, and after the welding gun is stabilized, the welding effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding repair, in particular to a mobile laser repair device. Background Art

[0002] With the continuous deepening of laser technology application, laser welding repair technology is becoming more and more mature, and its market application is becoming more and more extensive. There are more and more workpieces to be repaired that are large in mass and difficult to carry, so it is necessary to move the existing laser repair equipment to the repair site for on-site repair.

[0003] After searching, a patent document with publication number CN105618930B provides a movable field pipeline laser repair device, in which the device is moved by movable wheel plates on both sides of the main chassis and wheels installed at the lower ends of the wheel plates. The two movable wheel plates are respectively fixed on both sides of the main chassis, and each group of three wheels is a group, with a total of two groups of wheels, which are rotatably connected to the bottom ends of the two movable wheel plates. The field road surface is uneven. When the three wheels on one side are walking on a bumpy road surface and the three wheels on the other side are walking on a flat road surface, the entire device will tilt toward the side of the bumpy road surface. The higher the degree of tilting, the greater the risk of the device overturning, and the walking stability of the equipment is not good. At the same time, the welding operation is performed by a freely movable welding gun in the device, and the welding process is suspended. For some workpieces that need to be disassembled for welding, welding is more inconvenient. Summary of the invention

[0004] The purpose of the present invention is to provide a mobile laser repair equipment to solve the problems of poor walking stability of the equipment and inconvenient welding processing proposed in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A mobile laser repair device comprises a walking mechanism, a supporting mechanism and a sliding mechanism, wherein a base is fixed above the walking mechanism, the supporting mechanism is fixed above the base, the sliding mechanism is arranged on one side above the supporting mechanism, and a mechanical arm is installed on the sliding mechanism, and a welding gun is installed at one end of the mechanical arm.

[0006] As a further solution of the present invention: the walking mechanism includes a base plate, the base is fixed above the base plate, frames are provided on both sides of the base plate, wheels are installed at both ends of the two frames, mounting frames are fixed on both sides of the top center of the base plate, and transmission shafts are rotatably connected to the two mounting frames, one end of the two transmission shafts respectively extends to one side of the corresponding frame and is fixed on the frame, the other ends of the two transmission shafts respectively extend to one side of the top center of the base plate, and transmission bevel gears are fixed to the ends of the other ends of the two transmission shafts, a linkage bevel gear is installed at the top center of the base plate through a bracket, the linkage bevel gear is located between the two transmission bevel gears, and the linkage bevel gear is respectively meshed with the two transmission bevel gears.

[0007] As a further solution of the present invention: electric push rods are respectively installed on both sides above the base plate, and one end of the movable ends of the two electric push rods slides through the inner wall of the base plate on the corresponding side and extends to the bottom of the base plate, and the ends of the movable ends of the two electric push rods are fixed with supporting feet, and the bottom of the supporting feet is provided with anti-slip pads.

[0008] As a further solution of the present invention: the supporting mechanism includes a workbench, an extension table and a plurality of connecting members, the workbench and the extension table are flipped and connected via a plurality of the connecting members, the connecting members include a first mounting plate, a second mounting plate and a connecting block, the first mounting plate is fixed to one side below the workbench by bolts, the second mounting plate is fixed to one side of the extension table by bolts, the connecting block is arranged between the first mounting plate and the second mounting plate, and the connecting block is located below the workbench, and one end of the connecting block is welded and fixed to the second mounting plate.

[0009] As a further solution of the present invention: the upper end of the first mounting plate body is rotatably connected to the first connecting rod, one end of the first connecting rod is rotatably connected to the connecting block, the lower end of the first mounting plate body is rotatably connected to the second connecting rod, one end of the second connecting rod is rotatably connected to the connecting block, a first connecting shaft is fixed to the lower end of one side of the first mounting plate, a second connecting shaft is fixed to the upper end of one side of the connecting block, the first connecting shaft and the second connecting shaft are correspondingly arranged, and one end of the first connecting shaft and the second connecting shaft are both rotatably connected to a rotating sleeve, a spring is arranged between the two rotating sleeves, and both ends of the spring are respectively connected and fixed to the rotating sleeve on the corresponding side.

[0010] As a further solution of the present invention: the sliding mechanism includes a first sliding structure and a second sliding structure, the second sliding structure is arranged above the first sliding structure, and the first sliding structure and the second sliding structure cooperate to move the robot arm and the welding gun in the X-axis and Y-axis directions.

[0011] As a further solution of the present invention: the first sliding structure includes two mounting seats, two groups of bearing seats and two threaded rods, the two mounting seats are rotatably connected to the two threaded rods through the two groups of bearing seats, the two threaded rods have the same specifications and are arranged opposite to each other, a gap is reserved between the two threaded rods, a motor is installed on one side of the two mounting seats, and one end of the two motor output shafts is respectively connected and fixed to one end of the two threaded rods.

[0012] As a further solution of the present invention: the second sliding structure includes two guide rods, both ends of the two guide rods are respectively fixed on the mounting seat on the corresponding side, a sliding frame is slidably connected between the two guide rods, a linkage shaft is rotatably connected at the center of the inner wall of the sliding frame, both ends of the linkage shaft extend to the outside of the sliding frame, and a driven gear and a driving gear are respectively fixed at the upper and lower ends of the linkage shaft, the driving gear is arranged in the gap between the two threaded rods, and the teeth of the driving gear are meshed with the threads on the outer surfaces of the threaded rods on both sides thereof.

[0013] As a further solution of the present invention: a sliding rod and a rack are respectively arranged on both sides above the sliding frame, the rack is arranged opposite to the driven gear and meshingly connected, the sliding rod and the rack are connected and fixed by a bracket and surrounded to form a frame structure, a mounting platform is fixed above the frame structure formed by the sliding rod and the rack, and the bottom end of the robotic arm is fixed on the mounting platform.

[0014] As a further solution of the present invention: a mounting block is fixed on one side of the top of the sliding frame corresponding to the sliding rod and the rack, and the sliding rod and the rack are respectively slidably connected to the mounting block on the corresponding side.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the wheels on the left and right sides of the walking mechanism are linked by a bevel gear structure. When the wheel on one side rises and falls, the wheel on the other side will also rise and fall accordingly. Multiple wheels can grip the ground at the same time, and the grip is stronger, so that the walking mechanism can adapt to different road conditions and facilitate outdoor operations. Furthermore, the extension table in the supporting mechanism can be opened outward to provide a larger working space. The extension table is retracted and extended by springs to provide tensile support and is positioned after support. The structure is compact, does not occupy space, and has low manufacturing and maintenance costs. Furthermore, the welding gun can be moved forward, backward, left and right through the sliding mechanism during welding. The gears in the sliding mechanism cooperate with the threaded rods, and displacement adjustment can be easily achieved by changing the movement state of the threaded rods. At the same time, the threaded rods can not only drive the gears to move and rotate, but also clamp the gears in a stationary state to position the gears, and thereby fix the welding gun to prevent the welding gun from shaking. After the welding gun is stable, the welding effect will be better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a first viewing angle diagram of the walking mechanism in the present invention.

[0019] Figure 3 This is a second viewing angle diagram of the walking mechanism in the present invention.

[0020] Figure 4 This is a first viewing angle diagram of the support mechanism in the present invention.

[0021] Figure 5 This is a second viewing angle diagram of the support mechanism in the present invention.

[0022] Figure 6 This is a first-perspective view of the connecting parts in the support mechanism.

[0023] Figure 7 This is a second perspective view of the connecting member in the support mechanism.

[0024] Figure 8 This is a first viewing angle diagram of the sliding mechanism in the present invention.

[0025] Fig. 9 This is a second viewing angle diagram of the sliding mechanism in the present invention.

[0026] Fig.10It is a structural schematic diagram of the first sliding structure in the sliding mechanism.

[0027] Fig.11 This is a first perspective view of the second sliding structure in the sliding mechanism.

[0028] Fig.12 This is a second viewing angle diagram of the second sliding structure in the sliding mechanism.

[0029] Notes on reference numerals: 1-walking mechanism, 11-bottom plate, 12-frame, 13-wheel, 14-mounting frame, 15-transmission shaft, 16-transmission bevel gear, 17-linked bevel gear, 18-electric push rod, 19-support foot, 2-base, 3-support mechanism, 31-workbench, 32-extension table, 33-connecting piece, 331-first mounting plate, 332-second mounting plate, 333-connecting block, 334-first connecting rod, 335-second connecting rod, 336-spring, 337-second connecting rod, 338-second connecting rod, 339-second connecting rod, 340-second connecting rod, 341-second connecting rod, 342-second connecting rod, 343-second connecting rod, 344-second connecting rod, 345-second connecting rod, 346-second connecting rod, 347-second connecting rod, 348-second connecting rod, 349-second connecting rod, 350-second connecting rod, 351-second connecting rod, 352-second connecting rod, 353-second connecting rod, 354-second connecting rod, 355-second connecting rod, 356-second connecting rod, 357-second connecting rod, 358-second connecting rod, 359-second connecting rod, 360-second connecting rod, 361-second connecting rod, 362-second connecting rod, 363-second connecting rod, 364-second connecting rod, 365-second connecting rod, 366-second connecting rod, 367-second connecting rod, 368-second connecting rod, 369-second connecting rod, 369-second connecting rod, 369-second connecting rod, 361-second connecting rod, 369-second connecting rod, 361 7-first connecting shaft, 338-second connecting shaft, 339-rotating sleeve, 4-sliding mechanism, 41-first sliding structure, 411-mounting seat, 412-motor, 413-bearing seat, 414-threaded rod, 42-second sliding structure, 421-guide rod, 422-sliding frame, 423-mounting block, 424-sliding rod, 425-rack, 426-mounting table, 427-driven gear, 428-driving gear, 429-linkage shaft, 5-mechanical arm, 6-welding gun. DETAILED DESCRIPTION

[0030] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component may be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0031] See also Figures 1 to 12 In an embodiment of the present invention, a mobile laser repair device includes a walking mechanism 1, a supporting mechanism 3 and a sliding mechanism 4. A base 2 is fixed above the walking mechanism 1, and a supporting mechanism 3 is fixed above the base 2. The sliding mechanism 4 is arranged on one side above the supporting mechanism 3, and a mechanical arm 5 is installed on the sliding mechanism 4. A welding gun 6 is installed at one end of the mechanical arm 5. When in use, the equipment is moved by the walking mechanism 1, and the workpiece to be repaired is placed on the supporting mechanism 3 after moving, and then the mechanical arm 5 and the welding gun 6 are adjusted forward, backward, left and right by the sliding mechanism 4, so that the welding gun 6 is facing the workpiece and performs welding repair on it. The mechanical arm 5 can use an existing six-axis industrial mechanical arm.

[0032] See also Figures 2-3The walking mechanism 1 includes a bottom plate 11, a base 2 is fixed on the top of the bottom plate 11, a frame 12 is arranged on both sides of the bottom plate 11, wheels 13 are installed at both ends of the two frames 12, and a locking structure is arranged on each wheel 13. The locking structure can use the existing technology and structure, mounting frames 14 are fixed on both sides of the top center of the bottom plate 11, and transmission shafts 15 are rotatably connected to the two mounting frames 14. One end of the two transmission shafts 15 extends to one side of the corresponding frame 12 and is fixed on the frame 12, and the other end of the two transmission shafts 15 extends to one side of the top center of the bottom plate 11, and the ends of the other ends of the two transmission shafts 15 are fixed with transmission bevel gears 16; A linkage bevel gear 17 is installed at the center of the top of the bottom plate 11 through a bracket. The linkage bevel gear 17 is located between the two transmission bevel gears 16, and the linkage bevel gear 17 is meshed and connected with the two transmission bevel gears 16 respectively. Electric push rods 18 are installed on both sides above the bottom plate 11. One end of the movable end of the two electric push rods 18 slides through the inner wall of the bottom plate 11 on the corresponding side and extends to the bottom of the bottom plate 11. The ends of the movable ends of the two electric push rods 18 are fixed with supporting feet 19, and the bottom of the supporting feet 19 is provided with anti-slip pads; In this embodiment, when it is necessary to move the equipment on a bumpy road, the two wheels 13 on the same side will rise and fall and drive the frame 12 connected thereto to deflect synchronously. At this time, the transmission shaft 15 connected to the frame 12 rotates synchronously, and the transmission bevel gear 16 at one end of the transmission shaft 15 also rotates. The transmission bevel gear 16 is meshed with the linkage bevel gear 17, and the linkage bevel gear 17 is meshed with the transmission bevel gear 16 on the other side, so that the steering force of the transmission shaft 15 on one side can be transmitted to the transmission shaft 15 on the other side, and the frame 12 on the other side can be deflected synchronously, so that the wheels 13 at both ends of the frame 12 on the other side synchronously produce corresponding up and down fluctuations, so that multiple wheels 13 can be close to the ground at the same time, and the grip is stronger. The walking mechanism 1 will also be more stable during walking. The linkage design of the left and right wheels enables the walking mechanism 1 to adapt to different road conditions and is more convenient for outdoor use.

[0033] See also Figures 4 to 7 The support mechanism 3 includes a workbench 31, an extension table 32 and a plurality of connecting members 33. The workbench 31 and the extension table 32 are connected by a plurality of connecting members 33. In the initial state, the extension table 32 is vertically arranged below one side of the workbench 31. When turned outward by 90 degrees, the extension table 32 is horizontally connected to one side of the workbench 31, and the upper surfaces of the two are flush. The purpose of setting the extension table 32 is to expand the working space that can be used for welding repair, so as to meet the welding repair needs of larger workpieces. The connecting member 33 includes a first mounting plate 331, a second mounting plate 332 and a connecting block 333. The first mounting plate 331 is fixed to one side below the workbench 31 by bolts, the second mounting plate 332 is fixed to one side of the extension platform 32 by bolts, the connecting block 333 is arranged between the first mounting plate 331 and the second mounting plate 332, and the connecting block 333 is located below the workbench 31, one end of the connecting block 333 is welded and fixed to the second mounting plate 332, the upper end of the plate body of the first mounting plate 331 is rotatably connected to the first connecting rod 334, one end of the first connecting rod 334 is rotatably connected to the connecting block 333, the lower end of the plate body of the first mounting plate 331 is rotatably connected to the second connecting rod 335, one end of the second connecting rod 335 is rotatably connected to the connecting block 333; A first connecting shaft 337 is fixed to the lower end of one side of the first mounting plate 331, and a second connecting shaft 338 is fixed to the upper end of one side of the connecting block 333. The first connecting shaft 337 and the second connecting shaft 338 are arranged correspondingly, and one end of the first connecting shaft 337 and the second connecting shaft 338 are both rotatably connected to a rotating sleeve 339, and a spring 336 is arranged between the two rotating sleeves 339, and both ends of the spring 336 are respectively connected and fixed to the rotating sleeve 339 on the corresponding side; In this embodiment, the first mounting plate 331 supports the connection block 333 for rotation through the cooperation of the first connecting rod 334 and the second connecting rod 335. In the initial state, the extension table 32 is vertically connected to the lower side of the workbench 31. At this time, the spring 336 is in the initial tension state. The extension table 32 is pulled inward by the tension of the spring 336, and the extension table 32 is firmly fixed under the workbench 31. The extension table 32 is positioned once by the spring 336. When the extension table 32 is flipped 90 degrees, the spring 336 will also be flipped and stretched synchronously. At this time, the extension table 32 is supported upward by the pulling force of the spring 336 and the cooperation with the two connecting rods. The extension table 32 is repositioned by the spring 336. The spring 336 only produces a stretching movement when the extension table 32 is flipped. In a fixed state, the spring 336 is in a stable stretching support state, and the movement and stretching of the spring are relatively small, so it can also avoid fatigue and extend the life of the spring.

[0034] See also Figures 8 to 12 The sliding mechanism 4 includes a first sliding structure 41 and a second sliding structure 42. The second sliding structure 42 is arranged above the first sliding structure 41. The first sliding structure 41 and the second sliding structure 42 cooperate with each other to move the robot arm 5 and the welding gun 6 in the X-axis and Y-axis directions, so that the welding gun 6 can reach any position on the workbench 31, which is convenient for welding operations; The first sliding structure 41 includes two mounting seats 411, two sets of bearing seats 413 and two threaded rods 414. The two mounting seats 411 are fixed on the workbench 31. The two mounting seats 411 are rotatably connected to the two threaded rods 414 through the two sets of bearing seats 413. The two threaded rods 414 have the same specifications and are arranged opposite to each other. A gap is reserved between the two threaded rods 414. Motors 412 are installed on one side of the two mounting seats 411. One end of the output shaft of the two motors 412 is respectively connected and fixed to one end of the two threaded rods 414. The second sliding structure 42 includes two guide rods 421, both ends of which are fixed on the mounting seat 411 on the corresponding side, a sliding frame 422 is slidably connected between the two guide rods 421, a linkage shaft 429 is rotatably connected at the center of the inner wall of the sliding frame 422, both ends of the linkage shaft 429 extend to the outside of the sliding frame 422, and a driven gear 427 and a driving gear 428 are fixed to the upper and lower ends of the linkage shaft 429, respectively, the driving gear 428 is arranged in the gap between the two threaded rods 414, and the teeth of the driving gear 428 are meshed with the threads on the outer surfaces of the threaded rods 414 on both sides thereof; Slide bars 424 and rack bars 425 are respectively arranged on both sides above the slide frame 422. The rack bars 425 are arranged opposite to and meshed with the driven gear 427. The slide bars 424 and the rack bars 425 are connected and fixed by brackets and surrounded to form a frame structure. A mounting platform 426 is fixed above the frame structure formed by the slide bars 424 and the rack bars 425. The bottom end of the robot arm 5 is fixed on the mounting platform 426. A mounting block 423 is fixed on one side of the top of the slide frame 422 corresponding to the slide bars 424 and the rack bars 425. The slide bars 424 and the rack bars 425 are respectively slidably connected to the mounting blocks 423 on the corresponding side. In this embodiment, the driving gear 428 is meshed between the two threaded rods 414. When the two motors 412 rotate synchronously in the same direction, the meshing of the threads and the teeth will provide a clamping force, thereby driving the driving gear 428 to move synchronously along the movement direction of the threads. The driving gear 428 is connected to the sliding frame 422 through a linkage shaft 429. When the driving gear 428 moves, the sliding frame 422 will slide along the axial direction of the guide rod 421, thereby realizing the movement of the robot arm 5 and the welding gun 6 in the X-axis direction. When the two motors 412 rotate synchronously in opposite directions, the threaded rods 414 on both sides of the driving gear 428 rotate synchronously in opposite directions, and the threads on the surfaces of the threaded rods 414 on both sides move in opposite directions. At this time, the driving gear 428 that is threadedly meshed with the threaded rod surface will rotate under the drive of the thread. When the driving gear 428 rotates, it drives the driven gear 427 to rotate synchronously in the same direction through the linkage shaft 429. At this time, the rack 425 meshed with the driven gear 427 will slide along the length direction of the mounting block 423, thereby realizing the movement of the robotic arm 5 and the welding gun 6 in the Y-axis direction.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mobile laser repair device, characterized in that: The invention comprises a walking mechanism (1), a supporting mechanism (3) and a sliding mechanism (4); a base (2) is fixed above the walking mechanism (1); the supporting mechanism (3) is fixed above the base (2); the sliding mechanism (4) is arranged on one side above the supporting mechanism (3); a mechanical arm (5) is mounted on the sliding mechanism (4); and a welding gun (6) is mounted on one end of the mechanical arm (5).

2. The mobile laser repair equipment according to claim 1, characterized in that: The walking mechanism (1) comprises a base plate (11), the base (2) is fixed above the base plate (11), frames (12) are provided on both sides of the base plate (11), wheels (13) are installed at both ends of the two frames (12), mounting frames (14) are fixed on both sides of the top center of the base plate (11), transmission shafts (15) are rotatably connected to the two mounting frames (14), and one end of the two transmission shafts (15) respectively extends to one side of the corresponding frame (12) and The vehicle frame (12) is fixed to the vehicle frame (12), the other ends of the two transmission shafts (15) respectively extend to one side of the top center of the base plate (11), and the ends of the other ends of the two transmission shafts (15) are fixed with transmission bevel gears (16), and a linkage bevel gear (17) is installed at the top center of the base plate (11) through a bracket, the linkage bevel gear (17) is located between the two transmission bevel gears (16), and the linkage bevel gear (17) is respectively meshed with the two transmission bevel gears (16).

3. The mobile laser repair equipment according to claim 2, characterized in that: Electric push rods (18) are respectively installed on both sides above the base plate (11), and one end of the movable ends of the two electric push rods (18) slides through the inner wall of the base plate (11) on the corresponding side and extends to the bottom of the base plate (11), and the ends of the movable ends of the two electric push rods (18) are fixed with supporting feet (19), and the bottoms of the supporting feet (19) are provided with anti-slip pads.

4. The mobile laser repair equipment according to claim 1, characterized in that: The support mechanism (3) comprises a workbench (31), an extension platform (32) and a plurality of connecting members (33); the workbench (31) and the extension platform (32) are flip-connected via the plurality of connecting members (33); the connecting members (33) comprise a first mounting plate (331), a second mounting plate (332) and a connecting block (333); the first mounting plate (331) is fixed to one side below the workbench (31) via bolts; the second mounting plate (332) is fixed to one side of the extension platform (32) via bolts; the connecting block (333) is arranged between the first mounting plate (331) and the second mounting plate (332); the connecting block (333) is located below the workbench (31); and one end of the connecting block (333) is fixed to the second mounting plate (332) via welding.

5. The mobile laser repair equipment according to claim 4, characterized in that: The upper end of the plate body of the first mounting plate (331) is rotatably connected to a first connecting rod (334), one end of the first connecting rod (334) is rotatably connected to the connecting block (333), the lower end of the plate body of the first mounting plate (331) is rotatably connected to a second connecting rod (335), one end of the second connecting rod (335) is rotatably connected to the connecting block (333), a first connecting shaft (337) is fixed at the lower end of one side of the first mounting plate (331), a second connecting shaft (338) is fixed at the upper end of one side of the connecting block (333), the first connecting shaft (337) and the second connecting shaft (338) are correspondingly arranged, and one end of the first connecting shaft (337) and the second connecting shaft (338) are both rotatably connected to a rotating sleeve (339), a spring (336) is arranged between the two rotating sleeves (339), and two ends of the spring (336) are respectively connected and fixed to the rotating sleeve (339) on the corresponding side.

6. The mobile laser repair equipment according to claim 1, characterized in that: The sliding mechanism (4) comprises a first sliding structure (41) and a second sliding structure (42), wherein the second sliding structure (42) is arranged above the first sliding structure (41), and the first sliding structure (41) and the second sliding structure (42) cooperate with each other to move the robot arm (5) and the welding gun (6) in two directions of the X-axis and the Y-axis.

7. The mobile laser repair equipment according to claim 6, characterized in that: The first sliding structure (41) comprises two mounting seats (411), two groups of bearing seats (413) and two threaded rods (414); the two mounting seats (411) are rotatably connected to the two threaded rods (414) via the two groups of bearing seats (413); the two threaded rods (414) have the same specifications and are arranged opposite to each other; a gap is reserved between the two threaded rods (414); a motor (412) is installed on one side of the two mounting seats (411); one end of the output shaft of the two motors (412) is respectively connected and fixed to one end of the two threaded rods (414).

8. The mobile laser repair equipment according to claim 7, characterized in that: The second sliding structure (42) comprises two guide rods (421), the two ends of the two guide rods (421) are respectively fixed on the mounting seat (411) on the corresponding side, a sliding frame (422) is slidably connected between the two guide rods (421), a linkage shaft (429) is rotatably connected at the center of the inner wall of the sliding frame (422), both ends of the linkage shaft (429) extend to the outside of the sliding frame (422), and a driven gear (427) and a driving gear (428) are respectively fixed at the upper and lower ends of the linkage shaft (429), the driving gear (428) is arranged in the gap between the two threaded rods (414), and the teeth of the driving gear (428) are meshed with the threads on the outer surfaces of the threaded rods (414) on both sides thereof.

9. The mobile laser repair equipment according to claim 8, characterized in that: A slide bar (424) and a rack bar (425) are respectively arranged on both sides above the sliding frame (422); the rack bar (425) is arranged opposite to and meshingly connected with the driven gear (427); the slide bar (424) and the rack bar (425) are connected and fixed by a bracket and surrounded to form a frame structure; a mounting platform (426) is fixed above the frame structure formed by the slide bar (424) and the rack bar (425); and the bottom end of the mechanical arm (5) is fixed on the mounting platform (426).

10. The mobile laser repair equipment according to claim 9, characterized in that: A mounting block (423) is fixed to one side of the top of the sliding frame (422) corresponding to the sliding rod (424) and the rack (425), and the sliding rod (424) and the rack (425) are respectively slidably connected to the mounting block (423) on the corresponding side.

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