Laser welding device for aluminum alloy die-casting mold

Abstract

The present invention relates to the field of welding technology, and specifically to a laser repair welding device for an aluminum alloy die-casting mold, comprising a mold body, a clamping mechanism, a traveling mechanism and a welding unit, wherein the clamping mechanism comprises a clamping output end and a base, the clamping output end is used to fix the base on the mold body, the traveling mechanism has a traveling output end, and the traveling output end is arranged at the bottom of the base, the welding unit comprises a flipping mechanism, an adjusting mechanism, a 3D scanner, a welding gun and a receiving cross frame, the adjusting mechanism comprises a first adjuster and a second adjuster, the flipping mechanism has a flipping output end, and the device can automatically repair the aluminum alloy die-casting mold, improve welding efficiency, and save working time.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a laser repair welding device for an aluminum alloy die-casting mold. Background Art

[0002] During use, molds are prone to corner chipping, wear, and cracking. The cost of preparing new molds to replace failed molds is huge and the production cycle is long. Therefore, in order to reduce costs, welding equipment is usually used to repair the mold. During the welding process of existing welding equipment, workers need to hold the welding gun and move around the defects of the mold. At the same time, they need to press the mold on the workbench by hand to prevent it from moving. However, the welding accuracy of the handheld welding gun is not high, and long-term work will also cause damage to the workers' bodies, resulting in low welding repair efficiency. Therefore, a new welding device that can solve the above problems is needed. Summary of the invention

[0003] Based on this, it is necessary to provide a laser welding device for aluminum alloy die-casting molds to address the existing technical problems.

[0004] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: a laser repair welding device for an aluminum alloy die-casting mold, comprising a mold body, a clamping mechanism, a walking mechanism and a welding unit, the clamping mechanism comprising a clamping output end and a base, the clamping output end is used to fix the base on the mold body, the walking mechanism has a walking output end, and the walking output end is arranged at the bottom of the base, the welding unit comprises a flipping mechanism, an adjusting mechanism, a 3D scanner, a welding gun and a receiving cross frame, the adjusting mechanism comprises a first adjuster and a second adjuster, the flipping mechanism has a flipping output end, and the flipping output end is arranged on the base, the first adjuster has a lateral output end and a rotation output end, the second adjuster has a vertical output end, the first adjuster is arranged on the flipping output end, the rotation output end is arranged on the lateral output end, the second adjuster is arranged on the rotation output end, the receiving cross frame is arranged on the vertical output end, a 3D scanner is arranged at one end of the receiving cross frame, and a welding gun is arranged at the other end.

[0005] Furthermore, the clamping mechanism also includes a driving screw, a rotating motor, a sliding block and a fractal vise. A sliding groove is opened on the base. The driving screw is rotatably arranged in the sliding groove. The sliding block is slidably arranged in the sliding groove. The sliding block is threadedly connected to the driving screw. The rotating motor is fixedly arranged at the end of the driving screw. There are two fractal vises, one is fixedly connected to the base, and the other is fixedly connected to the sliding block.

[0006] Furthermore, the clamping mechanism also includes two mounting frames symmetrically fixed on both sides of the base and clamps symmetrically elastically slidably arranged on each mounting frame, each clamp has a plurality of balls rotatably arranged on it, and the clamp is connected to the mounting frame through a tension spring.

[0007] Furthermore, the flipping mechanism includes a supporting frame, a supporting rod and a receiving frame. The supporting frame is fixedly arranged on the base. Both ends of the supporting rod are rotatably connected to the supporting frame through bearings. The receiving frame is fixedly connected to the supporting rod. The supporting rod is the flipping output end of the flipping mechanism. The flipping mechanism also includes a worm rotatably arranged on the supporting frame through a bracket, a worm wheel coaxially connected to the support rod, and a driving motor for driving the worm to rotate. The driving motor is fixedly connected to the bracket, the worm wheel is meshed with the worm, and the worm is fixedly connected to the output shaft of the driving motor.

[0008] Furthermore, the walking mechanism includes a hanging frame, a tightening screw, a first connecting frame, a transfer shaft, a connecting arm, a walking wheel, a second connecting frame, a pressure spring, a limit box, a walking motor and a driving wheel. There are two hanging frames, and the two hanging frames are symmetrically fixedly arranged under the base. Each hanging frame is rotatably connected to a tightening screw through a thread, one tightening screw is fixedly connected to the first connecting frame, and the other tightening screw is fixedly connected to the second connecting frame. The transfer shaft is rotatably connected to the first connecting frame, and there are two connecting arms, each of which is connected through The torsion spring is rotatably connected to the transfer shaft, and a walking wheel is rotatably arranged at one end of each connecting arm away from the transfer shaft. One end of the pressure spring is fixedly connected to the second connecting frame, and the other end is fixedly connected to the limit box. The walking motor is fixedly connected to the limit box, and the driving wheel is rotatably arranged on the limit box. The driving wheel is connected to the output shaft of the walking motor. Limiting slide bars are arranged on the first connecting frame and the second connecting frame. The limiting slide bars penetrate the hoisting frame and are slidably connected to the hoisting frame. A positioning rod is arranged on the limit box. The positioning rod penetrates the second connecting frame and is slidably connected to the second connecting frame.

[0009] Furthermore, the first adjuster includes a limit frame, a limit screw, a limit support, a power motor and a rotating cylinder. The limit frame is fixedly arranged on the supporting frame, the limit screw is rotatably arranged on the limit frame, the power motor is fixedly arranged at one end of the limit frame, the limit screw is coaxially fixedly connected with the output shaft of the power motor, the limit support is slidably arranged on the limit frame, the limit screw passes through the limit support and is threadedly connected to the limit support, the rotating cylinder is fixedly arranged on the limit support, the limit support is the lateral displacement output end of the first adjuster, and the rotating output shaft of the rotating cylinder is the rotating output end of the first adjuster.

[0010] Furthermore, the second regulator includes a sliding bracket fixedly connected to the output shaft of the rotating cylinder, a limiting vertical groove opened on the sliding bracket, a threaded rod rotatably arranged on the sliding bracket, a driving motor fixedly arranged at the top of the sliding bracket and a movable seat slidably arranged in the limiting vertical groove, the movable seat is threadedly connected to the threaded rod, the movable seat is the vertical output end of the second regulator, the supporting cross frame is fixedly connected to the movable seat, and the output shaft of the driving motor is coaxially fixedly connected to the threaded rod.

[0011] Furthermore, the second adjuster also includes a transmission screw rotatably arranged in the receiving cross frame, a bearing block slidably arranged on the receiving cross frame, a servo motor fixedly arranged on the end of the receiving cross frame away from the 3D scanner, an electric turntable fixedly arranged on the bearing block, and a mounting plate fixedly arranged on the output shaft of the electric turntable, the welding gun is fixedly connected to the mounting plate, and the bearing block is threadedly connected to the transmission screw.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Firstly, the device can scan the mold body through a 3D scanner, and can obtain the mold body information more accurately, so as to ensure that the parts of the mold body that need to be repaired can be accurately repaired during subsequent welding, thereby improving the repair quality;

[0014] Second: Through the cooperation between the flip mechanism, the first regulator and the second regulator, the device enables the welding gun to be flexibly adjusted according to needs, ensuring high-quality welding repair work;

[0015] Third: The device has a simple structure, high practicability, and saves the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure of the embodiment is shown in FIG. Figure 1 ;

[0017] Figure 2 The three-dimensional structure of the embodiment is shown in FIG. Figure 2 ;

[0018] Figure 3 is a side view of a welding unit of an embodiment;

[0019] Figure 4 is a schematic diagram of the three-dimensional structure of a welding unit of an embodiment;

[0020] Figure 5 is a schematic diagram of the three-dimensional structure of the flipping mechanism of the embodiment;

[0021] Figure 6 1 is a schematic diagram of the three-dimensional structure of the walking mechanism of the embodiment;

[0022] Figure 7 is a bottom view of the walking mechanism of the embodiment;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting arm of the embodiment.

[0024] The numbers in the figure are: 1. mold body; 2. sliding bracket; 3. threaded rod; 4. moving seat; 5. receiving cross frame; 6. transmission screw; 7. bearing block; 8. servo motor; 9. welding gun; 10. electric rotary table; 11. mounting plate; 12. 3D scanner; 13. driving motor; 14. limiting vertical slot; 15. supporting base; 16. supporting rod; 17. receiving frame; 18. worm gear; 19. worm; 20. driving motor; 21. limiting frame; 22. limiting screw rod; 23. limiting support; 24. rotating Rotating cylinder; 25, power motor; 26, lifting frame; 27, tightening screw; 28, first connecting frame; 29, limiting slide rod; 30, transfer shaft; 31, connecting arm; 32, walking wheel; 33, second connecting frame; 34, pressure spring; 35, limiting box; 36, walking motor; 37, driving wheel; 38, positioning rod; 39, base; 40, sliding groove; 41, driving screw; 42, rotating motor; 43, sliding block; 44, mounting frame; 45, clamping plate; 46, ball bearing; 47, fractal vise. DETAILED DESCRIPTION

[0025] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] refer to Figures 1 to 8 :

[0027] The laser repair welding device for an aluminum alloy die-casting mold comprises a mold body 1, a clamping mechanism, a traveling mechanism and a welding unit, wherein the clamping mechanism comprises a clamping output end and a base 39, wherein the clamping output end is used to fix the base 39 on the mold body 1, the traveling mechanism has a traveling output end, and the traveling output end is arranged at the bottom of the base 39, the welding unit comprises a flipping mechanism, an adjusting mechanism, a 3D scanner 12, a welding gun 9 and a receiving cross frame 5, the adjusting mechanism comprises a first adjuster and a second adjuster, the flipping mechanism has a flipping output end, and the flipping output end is arranged on the base 39, the first adjuster has a lateral output end and a rotation output end, the second adjuster has a vertical output end, the first adjuster is arranged on the flipping output end, the rotation output end is arranged on the lateral output end, the second adjuster is arranged on the rotation output end, the receiving cross frame 5 is arranged on the vertical output end, a 3D scanner 12 is arranged at one end of the receiving cross frame 5, and a welding gun 9 is arranged at the other end.

[0028] When the device is in operation, the base 39 is first fixed at the approximate position of the mold body 1 that needs to be repaired by the clamping mechanism, and then the 3D scanner 12 is started to scan the mold body 1. The data scanned by the 3D scanner 12 is transmitted to the controller, and then the controller first controls the rotation output end to rotate, causing the supporting cross frame 5 to rotate 180°, so that the 3D scanner 12 and the welding gun 9 exchange positions. Then, under the control of the controller, the flip mechanism, the first regulator and the second regulator cooperate with each other to adjust the welding angle of the welding gun 9 at all times, thereby completing the repair welding of the mold body 1.

[0029] In order to show the detailed structure of the clamping mechanism, the following features are also set:

[0030] The clamping mechanism also includes a driving screw 41, a rotating motor 42, a sliding block 43 and a fractal vise 47. A sliding groove 40 is opened on the base 39. The driving screw 41 is rotatably set in the sliding groove 40. The sliding block 43 is slidably set in the sliding groove 40. The sliding block 43 is threadedly connected to the driving screw 41. The rotating motor 42 is fixedly set at the end of the driving screw 41. There are two fractal vises 47, one is fixedly connected to the base 39, and the other is fixedly connected to the sliding block 43.

[0031] When the device is running, the driving screw 41 is driven to rotate by the rotating motor 42, and the driving screw 41 rotates to drive the sliding block 43 to move. The movement of the sliding block 43 causes a fractal vise 47 to move. As the distance between the two fractal vises 47 gradually decreases, the fractal vise 47 contacts the side wall of the mold body 1, and then the side wall of the mold body 1 is clamped under the action of the fractal vise 47. In addition, the setting of the fractal vise 47 can ensure that the side wall of the mold body 1 can still be clamped when the mold body 1 is an irregular shape.

[0032] In order to ensure that the base 39 can be better limited on the mold body 1 when the device is running, the following features are also specifically provided:

[0033] The clamping mechanism also includes two mounting frames 44 symmetrically fixed on both sides of the base 39 and clamping plates 45 symmetrically elastically slidably arranged on each mounting frame 44. A plurality of balls 46 are rotatably arranged on each clamping plate 45, and the clamping plates 45 are connected to the mounting frames 44 through tension springs.

[0034] When fixing the base 39, first clamp the side wall of the mold body 1 through the clamp 45. During this process, the tension spring is stretched to ensure that the clamp 45 can apply a clamping force to the mold body 1, ensure that the ball 46 can contact the side wall of the mold body 1, and the setting of the ball 46 can make the base 39 move more smoothly.

[0035] In order to show the detailed structure of the flipping mechanism, the following features are also set:

[0036] The flipping mechanism includes a supporting frame 15, a supporting rod 16 and a receiving frame 17. The supporting frame 15 is fixedly arranged on the base 39. Both ends of the supporting rod 16 are rotatably connected to the supporting frame 15 through bearings. The receiving frame 17 is fixedly connected to the supporting rod 16. The supporting rod 16 is the flipping output end of the flipping mechanism. The flipping mechanism also includes a worm 19 rotatably arranged on the supporting frame 15 through a bracket, a worm wheel 18 coaxially fixedly connected to the support rod 16, and a driving motor 20 for driving the worm 19 to rotate. The driving motor 20 is fixedly connected to the bracket, the worm wheel 18 is meshed with the worm 19, and the worm 19 is fixedly connected to the output shaft of the driving motor 20.

[0037] When the device is running, the driving motor 20 drives the worm 19 to rotate, the rotation of the worm 19 drives the worm wheel 18 to rotate, and the rotation of the worm wheel 18 drives the support rod 16 to rotate. Since the worm wheel 18 and the worm 19 have self-locking characteristics, it ensures that when the receiving frame 17 moves, the receiving frame 17 can be stopped at any tilt angle as needed.

[0038] In order to show the detailed structure of the walking mechanism, the following features are also set:

[0039] The walking mechanism includes a hanging frame 26, a tightening screw 27, a first connecting frame 28, a transfer shaft 30, a connecting arm 31, a walking wheel 32, a second connecting frame 33, a pressure spring 34, a limit box 35, a walking motor 36 and a driving wheel 37. There are two hanging frames 26, and the two hanging frames 26 are symmetrically fixedly arranged below the base 39. Each hanging frame 26 is rotatably connected to a tightening screw 27 through a thread, one tightening screw 27 is fixedly connected to the first connecting frame 28, and the other tightening screw 27 is fixedly connected to the second connecting frame 33. The transfer shaft 30 is rotatably connected to the first connecting frame 28. There are two connecting arms 31, and each connecting arm 31 is connected to the rotating frame through a torsion spring. The connecting shaft 30 is rotatably connected, and a walking wheel 32 is rotatably provided at one end of each connecting arm 31 away from the transfer shaft 30. One end of the pressure spring 34 is fixedly connected to the second connecting frame 33, and the other end is fixedly connected to the limit box 35. The walking motor 36 is fixedly connected to the limit box 35. The driving wheel 37 is rotatably provided on the limit box 35, and the driving wheel 37 is connected to the output shaft of the walking motor 36. The first connecting frame 28 and the second connecting frame 33 are both provided with a limiting slide bar 29, the limiting slide bar 29 passes through the hanging frame 26 and is slidably connected to the hanging frame 26, and a positioning rod 38 is provided on the limit box 35, the positioning rod 38 passes through the second connecting frame 33, and the positioning rod 38 is slidably connected to the second connecting frame 33.

[0040] When the device is running, the two tightening screws 27 respectively drive the first connecting frame 28 and the second connecting frame 33 to approach the side wall of the mold body 1. It should be noted that the two walking wheels 32 are against the outer wall of the mold body 1, and the driving wheel 37 is against the inner wall of the mold body 1. During this process, the two connecting arms 31 are adaptively twisted under the action of the torsion spring, and the pressure spring 34 is also compressed to ensure that the walking wheels 32 and the driving wheels 37 can elastically press against the mold body 1. When the device needs to move, the rotating motor 42 starts to drive the driving screw 41 to rotate, so that the two fractal vises 47 temporarily release the mold body 1, and then the walking motor 36 starts to drive the driving wheel 37 to rotate. The driving wheel 37 rotates and rubs against the inner wall of the mold body 1, causing the base 39 to move along the side wall of the mold body 1 driven by the rotation of the driving wheel 37. When it moves to the next approximate position that needs to be repaired, the walking motor 36 stops moving, and then the rotating motor 42 starts to drive the fractal vise 47 to clamp the side wall of the mold body 1 again, and then the repair welding work is carried out.

[0041] In order to show the detailed structure of the first regulator, the following features are also specifically set:

[0042] The first regulator includes a limit frame 21, a limit screw 22, a limit support 23, a power motor 25 and a rotating cylinder 24. The limit frame 21 is fixedly arranged on the receiving frame 17, the limit screw 22 is rotatably arranged on the limit frame 21, the power motor 25 is fixedly arranged at one end of the limit frame 21, the limit screw 22 is coaxially fixedly connected with the output shaft of the power motor 25, the limit support 23 is slidably arranged on the limit frame 21, the limit screw 22 penetrates the limit support 23 and is threadedly connected with the limit support 23, the rotating cylinder 24 is fixedly arranged on the limit support 23, the limit support 23 is the lateral displacement output end of the first regulator, and the rotating output shaft of the rotating cylinder 24 is the rotating output end of the first regulator.

[0043] In order to show the detailed structure of the second regulator, the following features are also specifically set:

[0044] The second regulator includes a sliding bracket 2 fixedly connected to the output shaft of the rotating cylinder 24, a limiting vertical groove 14 opened on the sliding bracket 2, a threaded rod 3 rotatably arranged on the sliding bracket 2, a driving motor 13 fixedly arranged at the top of the sliding bracket 2 and a moving seat 4 slidably arranged in the limiting vertical groove 14, the moving seat 4 is threadedly connected to the threaded rod 3, the moving seat 4 is the vertical output end of the second regulator, the receiving cross frame 5 is fixedly connected to the moving seat 4, and the output shaft of the driving motor 13 is coaxially fixedly connected to the threaded rod 3.

[0045] When the device is running, the power motor 25 drives the limit screw 22 to rotate, and the rotation of the limit screw 22 makes the limit support 23 move along the length direction of the limit screw 22; when the receiving cross frame 5 needs to rotate, the rotating cylinder 24 drives the sliding bracket 2 to rotate, thereby making the receiving cross frame 5 rotate (it should be noted that this rotation can make the welding gun 9 and the 3D scanner 12 interchange positions, and can also make the welding gun 9 automatically adjust the position of the welding gun 9 as needed when welding). When the height of the receiving cross frame 5 needs to be adjusted; the driving motor 13 drives the threaded rod 3 to rotate, and the rotation of the threaded rod 3 makes the movable seat 4 move along the length direction of the limit vertical slot 14.

[0046] In order to ensure that the welding gun 9 has a higher degree of flexibility when the device is repairing the weld, the following features are also specifically provided:

[0047] The second regulator also includes a transmission screw 6 rotatably arranged in the receiving cross frame 5, a bearing block 7 slidably arranged on the receiving cross frame 5, a servo motor 8 fixedly arranged on the end of the receiving cross frame 5 away from the 3D scanner 12, an electric rotating table 10 fixedly arranged on the bearing block 7 and a mounting plate 11 fixedly arranged on the output shaft of the electric rotating table 10, the welding gun 9 is fixedly connected to the mounting plate 11, and the bearing block 7 is threadedly connected to the transmission screw 6.

[0048] The servo motor 8 drives the transmission screw 6 to rotate, and the rotation of the transmission screw 6 causes the support block 7 to move along the length direction of the transmission screw 6. The movement of the support block 7 enables the welding gun 9 to move in the length direction of the supporting cross frame 5, and the electric rotating table 10 can also drive the welding gun 9 to rotate, ensuring greater flexibility.

[0049] The working principle of the device is as follows: when the mold body 1 needs to be repaired and welded, the relevant staff first places the base 39 on the side wall of the mold body 1 (this position can be the approximate position where the repair and welding needs to be performed, or any position). When placing the base 39, the clamping plate 45 is first used to limit the base 39, and then the two tightening screws 27 are used to drive the first connecting frame 28 and the second connecting frame 33 to approach the side wall of the mold body 1, respectively, to ensure that the walking wheel 32 and the driving wheel 37 can elastically press against the mold body 1, and then the controller controls The rotation motor 42 drives the driving screw 41 to rotate, and the driving screw 41 rotates to drive the sliding block 43 to move. The movement of the sliding block 43 causes a fractal vise 47 to move. As the distance between the two fractal vises 47 gradually decreases, the fractal vise 47 contacts the side wall of the mold body 1, and then the side wall of the mold body 1 is clamped under the action of the fractal vise 47. Then, the controller controls the 3D scanner 12 to start scanning the mold body 1, waits for the scanning to end, and the 3D scanner 12 transmits the scanned information to the controller, and then controls The controller controls the movement of the rotary cylinder 24 to rotate the receiving cross frame 5 by 180°, so that the welding gun 9 and the 3D scanner 12 are interchanged. Then, the controller controls as needed to adjust the position and scheduling of the welding gun 9 at all times to ensure that the welding gun 9 can always be in the best welding position. The above device can complete the repair of the mold body 1. After the repair work at one place is completed, the controller controls the movement of the rotary cylinder 24 to interchange the positions of the welding gun 9 and the 3D scanner 12, and then controls the rotary motor 42 to start and drive the driving screw 41 to rotate, so that the two The fractal vise 47 temporarily releases the mold body 1, and then the travel motor 36 starts to drive the driving wheel 37 to rotate. The driving wheel 37 rotates and rubs against the inner wall of the mold body 1, causing the base 39 to move along the side wall of the mold body 1 driven by the rotation of the driving wheel 37. When it moves to the next approximate position that needs to be repaired (the 3D scanner 12 scans the mold body 1 at all times during this process), the travel motor 36 pauses, and then the rotating motor 42 starts to drive the fractal vise 47 to clamp the side wall of the mold body 1 again, and then the repair welding work is carried out.

[0050] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. Aluminum alloy die-casting mold laser repair welding device, characterized in that: The invention comprises a mold body (1), a clamping mechanism, a walking mechanism and a welding unit, wherein the clamping mechanism comprises a clamping output end and a base (39), the clamping output end being used to fix the base (39) on the mold body (1), the walking mechanism having a walking output end, the walking output end being arranged at the bottom of the base (39), the welding unit comprising a flipping mechanism, an adjusting mechanism, a 3D scanner (12), a welding gun (9) and a receiving cross frame (5), the adjusting mechanism comprising a first adjuster and a second adjuster, the flipping mechanism having a flipping output end, the flipping output end being arranged on the base (39), the first adjuster having a lateral output end and a rotational output end, the second adjuster having a vertical output end, the first adjuster being arranged on the flipping output end, the rotational output end being arranged on the lateral output end, the second adjuster being arranged on the rotational output end, the receiving cross frame (5) being arranged on the vertical output end, one end of the receiving cross frame (5) being arranged with a 3D scanner (12), and the other end being arranged with a welding gun (9); The walking mechanism comprises a hanging frame (26), a tightening screw (27), a first connecting frame (28), a transfer shaft (30), a connecting arm (31), a walking wheel (32), a second connecting frame (33), a pressure spring (34), a limit box (35), a walking motor (36) and a driving wheel (37). There are two hanging frames (26), and the two hanging frames (26) are symmetrically fixedly arranged below the base (39). Each hanging frame (26) is rotatably connected to a tightening screw (27) through a thread, one tightening screw (27) is fixedly connected to the first connecting frame (28), and the other tightening screw (27) is fixedly connected to the second connecting frame (33). The transfer shaft (30) is rotatably connected to the first connecting frame (28). There are two connecting arms (31), and each connecting arm (31) is connected to the transfer shaft (30) through a torsion spring. The first connecting frame (28) and the second connecting frame (33) are rotatably connected to each other, one end of each connecting arm (31) away from the transfer shaft (30) is rotatably provided with a walking wheel (32), one end of a pressure spring (34) is fixedly connected to the second connecting frame (33), and the other end is fixedly connected to the limit box (35), the walking motor (36) is fixedly connected to the limit box (35), the driving wheel (37) is rotatably provided on the limit box (35), the driving wheel (37) is connected to the output shaft of the walking motor (36), the first connecting frame (28) and the second connecting frame (33) are both provided with a limiting slide bar (29), the limiting slide bar (29) penetrates the hanging frame (26) and is slidably connected to the hanging frame (26), and the limiting box (35) is provided with a positioning rod (38), the positioning rod (38) penetrates the second connecting frame (33), and the positioning rod (38) is slidably connected to the second connecting frame (33).

2. The laser welding device for aluminum alloy die-casting mold according to claim 1 is characterized in that: The clamping mechanism further comprises a driving screw (41), a rotating motor (42), a sliding block (43) and a fractal vise (47). A sliding groove (40) is provided on the base (39). The driving screw (41) is rotatably arranged in the sliding groove (40). The sliding block (43) is slidably arranged in the sliding groove (40). The sliding block (43) is threadedly connected to the driving screw (41). The rotating motor (42) is fixedly arranged at the end of the driving screw (41). There are two fractal vises (47), one of which is fixedly connected to the base (39) and the other is fixedly connected to the sliding block (43).

3. The laser welding device for aluminum alloy die-casting mold according to claim 2 is characterized in that: The clamping mechanism further comprises two mounting frames (44) symmetrically fixedly arranged on both sides of the base (39) and clamping plates (45) symmetrically elastically slidably arranged on each mounting frame (44), each clamping plate (45) being rotatably arranged with a plurality of balls (46), and the clamping plates (45) being connected to the mounting frames (44) via tension springs.

4. The laser welding device for aluminum alloy die-casting mold according to claim 3 is characterized in that: The flip mechanism comprises a supporting frame (15), a supporting rod (16) and a receiving frame (17); the supporting frame (15) is fixedly arranged on a base (39); both ends of the supporting rod (16) are rotatably connected to the supporting frame (15) via bearings; the receiving frame (17) is fixedly connected to the supporting rod (16); the supporting rod (16) is a flip output end of the flip mechanism; the flip mechanism also comprises a worm (19) rotatably arranged on the supporting frame (15) via a bracket; a worm wheel (18) coaxially fixedly connected to the supporting rod (16); and a driving motor (20) for driving the worm (19) to rotate; the driving motor (20) is fixedly connected to the bracket; the worm wheel (18) meshes with the worm (19); and the worm (19) is fixedly connected to an output shaft of the driving motor (20).

5. The laser welding device for aluminum alloy die-casting mold according to claim 4 is characterized in that: The first regulator comprises a limit frame (21), a limit screw (22), a limit support (23), a power motor (25) and a rotary cylinder (24); the limit frame (21) is fixedly arranged on the receiving frame (17); the limit screw (22) is rotatably arranged on the limit frame (21); the power motor (25) is fixedly arranged on one end of the limit frame (21); the limit screw (22) is coaxially fixedly connected to an output shaft of the power motor (25); the limit support (23) is slidably arranged on the limit frame (21); the limit screw (22) penetrates the limit support (23) and is threadedly connected to the limit support (23); the rotary cylinder (24) is fixedly arranged on the limit support (23); the limit support (23) is the lateral displacement output end of the first regulator; and the rotary output shaft of the rotary cylinder (24) is the rotary output end of the first regulator.

6. The laser repair welding device for aluminum alloy die-casting mold according to claim 5 is characterized in that: The second regulator comprises a sliding bracket (2) fixedly connected to the output shaft of the rotary cylinder (24), a limiting vertical groove (14) provided on the sliding bracket (2), a threaded rod (3) rotatably arranged on the sliding bracket (2), a driving motor (13) fixedly arranged at the top of the sliding bracket (2), and a moving seat (4) slidably arranged in the limiting vertical groove (14), wherein the moving seat (4) is threadably connected to the threaded rod (3), the moving seat (4) is the vertical output end of the second regulator, the receiving cross frame (5) is fixedly connected to the moving seat (4), and the output shaft of the driving motor (13) is coaxially fixedly connected to the threaded rod (3).

7. The laser welding device for aluminum alloy die-casting mold according to claim 6 is characterized in that: The second regulator also includes a transmission screw (6) rotatably arranged in the receiving cross frame (5), a bearing block (7) slidably arranged on the receiving cross frame (5), a servo motor (8) fixedly arranged at an end of the receiving cross frame (5) away from the 3D scanner (12), an electric rotating table (10) fixedly arranged on the bearing block (7), and a mounting plate (11) fixedly arranged on the output shaft of the electric rotating table (10), the welding gun (9) is fixedly connected to the mounting plate (11), and the bearing block (7) is threadedly connected to the transmission screw (6).

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