A smart laser welding device for multi-angle adjustment of metal parts

Abstract

This invention discloses an intelligent laser welding device for multi-angle adjustment of metal parts, belonging to the technical field of laser welding devices. The device includes a main body and a welding table fixedly mounted on its top surface. Placement frames are fixedly mounted on the surface of the welding table, and metal plates to be welded are placed inside each of the two placement frames. A first fixed frame and a second fixed frame are respectively provided at the corresponding ends of the two placement frames, and sliding grooves are formed on the inner sides of both the first and second fixed frames. In this intelligent laser welding device for multi-angle adjustment of metal parts, under the condition that the gear follows the slider movement, the gear, under the action of the first and second toothed plates, causes the welding head to oscillate back and forth with a small amplitude to perform fish-scale welding on the two metal plates. This not only improves the welding speed of the welding equipment on the metal plates but also ensures the welding quality of the metal plates.

Description

Technical Field

[0001] This invention relates to the field of laser welding equipment technology, and more specifically, to an intelligent laser welding device for multi-angle adjustment of metal parts. Background Technology

[0002] Laser welding equipment uses the laser thermal effect to achieve localized melting, welding two or more metal plates together to form a single sheet or profile.

[0003] Chinese patent application CN202111456683.8 discloses an ultra-thin metal plate laser welding clamping device, including a worktable base plate, a frame fixedly connected to the worktable base plate, a support plate fixedly connected to both sides of the top surface of the frame, a back protective pad embedded between the two support plates, one end of a rotating pin fixedly connected to one side wall of the frame, the other end of the rotating pin movably connected to a triangular thrust plate, the bottom corner of the triangular thrust plate movably connected to one end of a drive mechanism, the two top corners of the triangular thrust plate movably connected to one end of a clamping part, the other end of the clamping part movably connected to the support plate, the material to be welded placed between the clamping part and the support plate, the top of the triangular thrust plate movably connected to a movable top plate, the top surface of the movable top plate abutting against an elastic push rod mechanism, the elastic push rod mechanism abutting against the back protective pad.

[0004] In the above technical solution, the movable top plate lifts the elastic top rod mechanism upwards, which in turn lifts the protective pad on the back, providing elastic clamping force to the metal bipolar plate and preventing it from sagging. However, when welding thicker metal plates, the two metal plates to be welded are first spliced ​​together, and then the worker holds the welding head to weld the metal plates. However, in the process of welding thicker metal plates, lap welding or fish scale welding is usually used. During lap welding or fish scale welding, the worker holds the welding head and swings it back and forth slightly to weld the thicker metal plate. This human intervention may cause instability in the welding process, affecting the welding quality of the welding device for thicker metal plates. Human intervention in welding may also lead to a slower welding speed, which in turn affects the welding efficiency of the welding device for thicker metal plates. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent laser welding device for multi-angle adjustment of metal parts, so as to solve the problems mentioned in the background art above:

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

[0007] A smart laser welding device for multi-angle adjustment of metal parts includes a device body and a welding table fixedly installed on its top surface. Placement frames are fixedly installed on the surface of the welding table. Two metal plates to be welded are placed inside each of the two placement frames. A first fixed frame and a second fixed frame are respectively provided at the corresponding ends of the two placement frames. Sliding grooves are formed on the inner sides of both the first and second fixed frames. Sliding frames of the same height are provided inside each of the two sliding grooves. Multiple first toothed plates and second toothed plates are fixedly installed on the inner sides of the two sliding frames, and these plates are staggered. A mounting frame is fixedly installed on the middle surface of the welding table. A through-type movable groove is formed on the surface of the mounting frame. A matching slider is slidably connected inside the movable groove. A rotating shaft is rotatably connected to the bottom surface of the slider. A gear that meshes with the first and second toothed plates is fixedly installed on the bottom surface of the rotating shaft. A welding head for welding the metal plates is fixedly installed on one side of the surface of the gear.

[0008] Preferably, the first fixing frame and the second fixing frame are positioned correspondingly, and a connecting plate is provided between the first fixing frame and the second fixing frame and the two placement frames. The first fixing frame and the second fixing frame are respectively fixedly connected to the end surfaces of the two placement frames through the connecting plate, and the sliding frame is slidably connected to the inside of the sliding groove.

[0009] Preferably, a slide is fixedly mounted on the surface of the mounting bracket, a threaded rod is rotatably connected inside the slide, and a sliding block is fixedly mounted on the surface of the slider, the sliding block being threadedly connected to the threaded rod.

[0010] Preferably, a motor is fixedly mounted on one end surface of the carriage, and the output end of the motor is fixedly connected to the threaded rod.

[0011] Preferably, a spacing sensor for detecting the welding distance between two metal plates is fixedly installed on the inner side of the mounting bracket, and a controller is fixedly installed at one corner of the surface of the welding table. The spacing sensor is electrically connected to the controller via a wire, and the controller is electrically connected to a motor via a wire.

[0012] Preferably, a slot is formed on one side surface of the mounting bracket, and a circuit is arranged inside the slot. One end of the circuit is connected to the welding head, and the other end of the circuit is connected to the device body.

[0013] Preferably, each of the two placement racks has a bracket fixedly installed on its inner side. The bracket is rotatably connected to a bidirectional lead screw. The surface of the bidirectional lead screw is threadedly connected to a clamping plate for holding a metal plate. A rotatable turntable is provided on one side of the placement rack. The turntable is fixedly connected to the bidirectional lead screw. The surfaces of the first and second fixed racks are both provided with connecting grooves that communicate with the sliding groove. The interior of the connecting groove is slidably connected to a support plate for supporting the sliding rack.

[0014] Preferably, the inner sides of the first and second fixed frames are provided with rotating grooves communicating with the slide groove, the surfaces of the first and second fixed frames are provided with rotating holes, the interior of the rotating holes is rotatably connected to a splined cylinder, one end of the splined cylinder is fixedly mounted with a cam for pressing the sliding frame, the surfaces of the first and second fixed frames are provided with through grooves communicating with the rotating grooves, and two dampers are fixedly mounted between the sliding frame and the slide groove.

[0015] Preferably, both the first and second fixed frames have multiple insertion holes on their surfaces, which are located around the rotating hole. A spline rod is splined inside the splined cylinder, and a first spring is elastically connected between the spline rod and the splined cylinder. Insert rods are inserted into the interior of each of the multiple insertion holes, and a rotating block is fixedly mounted on one end surface of each of the multiple insert rods. A limiting ring for limiting the rotating block is provided on the surface of the spline rod, and a connecting rod is provided between the two limiting rings and the first and second fixed frames. The two limiting rings are respectively fixedly connected to the surfaces of the first and second fixed frames through the connecting rod.

[0016] Preferably, the surface of the support plate is slidably connected to two guide rods, one end of each guide rod is fixedly connected to the surface of the first and second fixed frames respectively, the two support plates are slidably connected to the first and second fixed frames respectively through the guide rods, each guide rod is fitted with a second spring for the support plate to move and reset, the top surface of each support plate is fixedly mounted with an arc-shaped block, the surfaces of the plurality of insert rods are jointly fixedly mounted with a fixed disk, and the surface of the fixed disk is fixedly mounted with an arc-shaped ring for pressing the arc-shaped block.

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

[0018] 1) In use, this intelligent laser welding device for multi-angle adjustment of metal parts places two metal plates to be welded inside two separate mounting frames. The spacing sensor detects that the welding spacing of the two metal plates is appropriate, and the two clamping plates move towards each other to hold the metal plates. The slider moves, carrying the rotating shaft, gear, and welding head. When the welding head moves to the welding position with the two metal plates, it starts welding. When the gear moves to mesh with the first toothed plate, the gear rotates slightly on the surface of the first toothed plate, causing the welding head to swing and weld the metal plate. When the gear disengages from the first toothed plate, it immediately meshes with the second toothed plate. Under the action of the second toothed plate, the gear reverses, causing the welding head to swing and weld the metal plate. Multiple first and second toothed plates are staggered. With the gear following the slider, the gear, under the action of the first and second toothed plates, causes the welding head to swing back and forth slightly to perform fish-scale welding on the two metal plates. This not only improves the welding speed of the welding equipment but also ensures the welding quality of the metal plates.

[0019] 2) When using this intelligent laser welding device for multi-angle adjustment of metal parts, after the cam is released from its fixed position, the support plate does not limit the sliding frame. The cam rotates and presses the sliding frame, causing it to move downward inside the slide groove. The first and second toothed plates follow the sliding frame. At this time, the positions of the first and second toothed plates are not at the same height as the movement trajectory of the gear. The motor rotates, causing the threaded rod to rotate, which in turn causes the sliding block to move, carrying the slider inside the movable groove. The slider's movement carries the rotating shaft, gear, and welding head. The welding head then welds the metal plate. Because the positions of the first and second toothed plates are not at the same height as the movement trajectory of the gear, the welding equipment performs normal straight-line welding on thin metal plates. This welding equipment can simultaneously meet the welding needs of metal plates of different thicknesses, increasing the functionality and practicality of the welding equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram showing the position and structure of the device body and welding station of the present invention;

[0022] Figure 3 This is a schematic diagram showing the position and structure of the placement rack and metal plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the mounting bracket and movable slot positions of the present invention;

[0024] Figure 5 This is a schematic diagram showing the positional structure of the first and second fixing frames of the present invention;

[0025] Figure 6This is a schematic diagram showing the position and structure of the second fixing frame and connecting plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the position structure of the slide groove and sliding frame of the present invention;

[0027] Figure 8 This is a schematic diagram of the position and structure of the sliding frame and damper of the present invention;

[0028] Figure 9 This is a schematic diagram of the slot and cam position structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the second fixing frame and the position of the rotating hole in this invention;

[0030] Figure 11 This is an exploded view of the spline cylinder and spline rod of the present invention;

[0031] Figure 12 This is a schematic diagram of the position structure of the fixed disk and the arc-shaped ring of the present invention;

[0032] Figure 13 This is a schematic diagram of the cross-sectional structure of the fixed disk and the arc-shaped ring of the present invention.

[0033] Explanation of the numbers in the diagram: 1. Device body; 2. Welding table; 3. Placement frame; 4. Metal plate; 5. First fixed frame; 6. Second fixed frame; 7. Slide groove; 8. Sliding frame; 9. First toothed plate; 10. Second toothed plate; 11. Mounting frame; 12. Movable groove; 13. Slider; 14. Rotating shaft; 15. Gear; 16. Welding head; 17. Connecting plate; 18. Slide frame; 19. Sliding block; 20. Threaded rod; 21. Motor; 22. Spacing sensor; 23. Controller; 24. Slot 25. Circuit; 26. Bracket; 27. Double-acting lead screw; 28. Clamping plate; 29. ​​Turntable; 30. Rotary groove; 31. Rotary hole; 32. Splined cylinder; 33. Cam; 34. Through groove; 35. Damper; 36. Insertion hole; 37. Splined rod; 38. First spring; 39. Insert rod; 40. Fixed plate; 41. Rotating block; 42. Limiting ring; 43. Connecting rod; 44. Connecting groove; 45. Support plate; 46. Guide rod; 47. Second spring; 48. Arc block; 49. Arc ring. Detailed Implementation

[0034] Example 1: Please refer to Figure 1 - Figure 13A smart laser welding device for multi-angle adjustment of metal parts includes a device body 1 and a welding table 2 fixedly installed on its top surface. The device body 1 is a conventional laser welding device in the prior art. A placement frame 3 is fixedly installed on the surface of the welding table 2. The placement frame 3 is used to place the metal plate 4 to be welded. Both placement frames 3 contain the metal plate 4 to be welded. The metal plate 4 is a conventional flat metal part in the prior art. A first fixing frame 5 and a second fixing frame 6 are respectively provided at the corresponding ends of the two placement frames 3. The inner surfaces of both the first fixing frame 5 and the second fixing frame 6 are provided with sliding grooves 7. Sliding frames 8 of the same height are provided inside both sliding grooves 7. Multiple first toothed plates 9 and second toothed plates 10 are fixedly installed on the inner side of the moving frame 8. The multiple first toothed plates 9 and second toothed plates 10 are staggered with each other. The distance between two teeth of the first toothed plates 9 is the same as the distance between the corresponding ends of the first toothed plates 9 and the second toothed plates 10. When the gear 15 disengages from the first toothed plate 9, it ensures that the gear 15 immediately meshes with the second toothed plate 10. A mounting frame 11 is fixedly installed on the middle surface of the welding table 2. A through movable groove 12 is opened on the surface of the mounting frame 11. A matching slider 13 is slidably connected inside the movable groove 12. A rotating shaft 14 is rotatably connected to the bottom surface of the slider 13. A component that matches the first toothed plate 9 and the second toothed plate 10 is fixedly installed on the bottom surface of the rotating shaft 14. A gear 15 meshes with two toothed plates 10. A welding head 16 for welding metal plates 4 is fixedly mounted on one side of the surface of the gear 15. The welding head 16 is a conventional laser welding head in the prior art. Two metal plates 4 to be welded are placed inside two placement racks 3 respectively. The spacing sensor 22 detects that the welding spacing of the two metal plates 4 is appropriate. Two clamping plates 28 move towards each other to clamp the metal plates 4. The slider 13 moves, causing the rotating shaft 14, gear 15 and welding head 16 to move. When the welding head 16 moves to the welding position with the two metal plates 4, the welding head 16 works to weld the metal plates 4. When the gear 15 moves to mesh with the first toothed plate 9, the gear 15 on the first toothed plate 9... The surface rotates slightly, causing the welding head 16 to swing and weld the metal plate 4. When the gear 15 disengages from the first toothed plate 9, it immediately meshes with the second toothed plate 10. Under the action of the second toothed plate 10, the gear 15 reverses, causing the welding head 16 to swing and weld the metal plate 4. Multiple first toothed plates 9 and second toothed plates 10 are staggered. Under the condition that the gear 15 follows the movement of the slider 13, the gear 15, under the action of the first toothed plates 9 and the second toothed plates 10, causes the welding head 16 to swing back and forth slightly to perform fish-scale welding on the two metal plates 4. This not only improves the welding speed of the welding equipment on the metal plate 4, but also ensures the welding quality of the welding device on the metal plate 4.

[0035] The positions of the first fixed frame 5 and the second fixed frame 6 are corresponding. A connecting plate 17 is provided between the first fixed frame 5 and the second fixed frame 6 and the two placement frames 3. The first fixed frame 5 and the second fixed frame 6 are fixedly connected to the end surfaces of the two placement frames 3 through the connecting plate 17. The sliding frame 8 is slidably connected inside the sliding groove 7. The length of the first fixed frame 5 and the second fixed frame 6 is longer than the width of the placement frame 3.

[0036] A slide 18 is fixedly mounted on the surface of the mounting bracket 11. A threaded rod 20 is rotatably connected inside the slide 18. A sliding block 19 is fixedly mounted on the surface of the slider 13. The sliding block 19 is threadedly connected to the threaded rod 20 to ensure the stability of the welding head 16 during the welding process of the metal plate 4.

[0037] A motor 21 is fixedly mounted on one end of the slide 18. The output end of the motor 21 is fixedly connected to the threaded rod 20. The motor 21 is a conventional forward and reverse reversing motor in the prior art.

[0038] A spacing sensor 22 for detecting the welding distance between two metal plates 4 is fixedly installed on the inner side of the mounting bracket 11. The spacing sensor 22 is a conventional spacing sensor 22 in the prior art. A controller 23 is fixedly installed at one corner of the surface of the welding table 2. The controller 23 is a conventional programmable controller in the prior art. The spacing sensor 22 is electrically connected to the controller 23 through wires. The controller 23 is electrically connected to the motor 21 through wires.

[0039] A slot 24 is provided on one side surface of the mounting bracket 11. A wire 25 is provided inside the slot 24. One end of the wire 25 is connected to the welding head 16, and the other end of the wire 25 is connected to the device body 1. The outer insulation layer of the wire 25 is made of soft material, so the wire 25 will not be torn as it moves with the welding head 16.

[0040] Both placement racks 3 have brackets 26 fixedly installed on their inner sides. A bidirectional lead screw 27 is rotatably connected inside the bracket 26. A clamping plate 28 for holding the metal plate 4 is threadedly connected to the surface of the bidirectional lead screw 27. A rotatable turntable 29 is provided on one side of the placement rack 3. The turntable 29 is fixedly connected to the bidirectional lead screw 27. The surfaces of the first fixed rack 5 and the second fixed rack 6 are both provided with connecting grooves 44 that communicate with the sliding groove 7. A support plate 45 for supporting the sliding rack 8 is slidably connected inside the connecting groove 44. When the turntable 29 is manually rotated, the turntable 29 rotates, causing the bidirectional lead screw 27 to rotate, thereby causing the two clamping plates 28 to move towards each other to clamp the metal plate 4, ensuring the stability of the metal plate 4 during the welding process.

[0041] The steps for using this invention are as follows: When using this intelligent laser welding device for multi-angle adjustment of metal parts, first place two metal plates 4 to be welded inside two placement racks 3 respectively, and push the metal plates 4 into the placement racks 3. When the spacing sensor 22 detects that the welding spacing of the two metal plates 4 is appropriate, stop pushing the metal plates 4. Then manually rotate the turntable 29. The rotation of the turntable 29 drives the bidirectional lead screw 27 to rotate, thereby causing the two clamping plates 28 to move towards each other to clamp the metal plates 4. Operate the controller 23. At this time, the motor 21 rotates, driving the threaded rod 20 to rotate (the speed of the motor 21 is controllable), thereby causing the sliding block 19 to move, driving the slider 13 to move inside the movable groove 12. The movement of the slider 13 drives the rotating shaft 14 and gear 1... 5. The welding head 16 moves. When the welding head 16 moves to the welding position with the two metal plates 4, it starts welding the metal plates 4. When the gear 15 moves to mesh with the first toothed plate 9, the gear 15 rotates slightly on the surface of the first toothed plate 9. The rotation of the gear 15 causes the welding head 16 to rotate, thus welding the metal plates 4. When the gear 15 disengages from the first toothed plate 9, it immediately meshes with the second toothed plate 10. The gear 15 reverses under the action of the second toothed plate 10, causing the welding head 16 to weld the metal plates 4. Multiple first toothed plates 9 and second toothed plates 10 are staggered (in the initial state of the first toothed plates 9 and second toothed plates 10, the sliding frame 8 is limited by the support plate 45). Under the condition that the slider 13 moves, the gear 15, under the action of the first toothed plate 9 and the second toothed plate 10, causes the welding head 16 to swing back and forth slightly to perform fish-scale welding on the two metal plates 4. After the welding head 16 finishes welding the two thicker metal plates 4, the two clamping plates 28 are manually released from fixing the metal plates 4, and then the welded metal plates 4 are removed. In this scheme, the two metal plates 4 to be welded are placed inside the two placement racks 3 respectively. The spacing sensor 22 detects that the welding spacing of the two metal plates 4 is appropriate, and the two clamping plates 28 move towards each other to clamp the metal plates 4. The slider 13 moves, which moves the rotating shaft 14, the gear 15 and the welding head 16. When the welding head 16 moves to the welding position with the two metal plates 4, the welding head 16... The welding process involves welding metal plate 4. When gear 15 engages with the first toothed plate 9, it rotates slightly on the surface of the first toothed plate 9, causing the welding head 16 to swing and weld the metal plate 4. When gear 15 disengages from the first toothed plate 9, it immediately engages with the second toothed plate 10. Under the action of the second toothed plate 10, gear 15 reverses direction, causing the welding head 16 to swing and weld the metal plate 4. Multiple first toothed plates 9 and second toothed plates 10 are staggered. With gear 15 following the movement of slider 13, the gear 15, under the action of the first toothed plates 9 and second toothed plates 10, causes the welding head 16 to swing back and forth slightly to perform fish-scale welding on the two metal plates 4. This not only increases the welding speed of the welding equipment on the metal plate 4, but also...This also ensured the welding quality of the welding device on metal plate 4.

[0042] Example 2: Please refer to Figure 1 - Figure 13 The difference from Embodiment 1 lies in that the inner surfaces of both the first fixed frame 5 and the second fixed frame 6 are provided with rotating grooves 30 communicating with the sliding groove 7. The surfaces of both the first fixed frame 5 and the second fixed frame 6 are provided with rotating holes 31, and a splined cylinder 32 is rotatably connected inside the rotating holes 31. A cam 33 for pressing the sliding frame 8 is fixedly installed on one end of the splined cylinder 32. The surfaces of both the first fixed frame 5 and the second fixed frame 6 are provided with through grooves 34 communicating with the rotating grooves 30. Two dampers 35 are fixedly installed between the sliding frame 8 and the sliding groove 7. The dampers 35 are conventional dampers in the prior art. After the cam 33 is released from its fixed position, the support plate 45 does not limit the sliding frame 8. The cam 33 rotates and presses the sliding frame 8, causing... The sliding frame 8 moves downward inside the slide groove 7, and the first toothed plate 9 and the second toothed plate 10 follow the sliding frame 8. At this time, the positions of the first toothed plate 9 and the second toothed plate 10 are not at the same height as the movement trajectory of the gear 15. The motor 21 rotates, causing the threaded rod 20 to rotate, which causes the sliding block 19 to move, causing the slider 13 to move inside the movable groove 12. The slider 13 moves, causing the rotating shaft 14, the gear 15 and the welding head 16 to move. The welding head 16 works to weld the metal plate 4. Since the positions of the first toothed plate 9 and the second toothed plate 10 are not at the same height as the movement trajectory of the gear 15, the welding equipment performs normal straight-line welding on the thin metal plate 4. This welding equipment can simultaneously meet the welding of metal plates 4 of different thicknesses, increasing the functionality and practicality of the welding equipment.

[0043] The surfaces of the first fixing frame 5 and the second fixing frame 6 are each provided with multiple insertion holes 36, which are located around the rotating hole 31. A spline rod 37 is splinedly connected inside the splined cylinder 32. A first spring 38 is elastically connected between the spline rod 37 and the splined cylinder 32. One end of the first spring 38 is fixedly connected to the inner wall of the splined cylinder 32, and the other end is fixedly connected to the spline rod 37. Insertion rods 39 are inserted into the interior of each of the multiple insertion holes 36. A rotating block 41 is fixedly mounted on one end of each insertion rod 39. A limiting ring 42 for limiting the rotating block 41 is provided on the surface of the spline rod 37. A connecting rod 43 is provided between the two limiting rings 42 and the first fixing frame 5 and the second fixing frame 6. The two limiting rings 42 are respectively connected to the surfaces of the first fixing frame 5 and the second fixing frame 6 via the connecting rod 43. The fixed connection is achieved by manually rotating the rotating block 41. The rotating block 41 rotates at a 90-degree angle. The rotation of the rotating block 41 causes the spline rod 37 to rotate, which in turn causes the spline cylinder 32 to rotate, which in turn causes the cam 33 to rotate and press against the top surface of the sliding frame 8. At this time, the sliding frame 8 moves downward in the slide groove 7 and presses against the two dampers 35. When the cam 33 rotates 90 degrees, multiple insert rods 39 rotate, causing the arc ring 49 to rotate. The arc ring 49 rotates and presses against the arc block 48. At this time, the arc block 48 continues to move, causing the support plate 45 to slide on the surface of the guide rod 46 and stretch the second spring 47. When the rotating block 41 rotates to 90 degrees, the rotating block 41 moves back to the direction of the cam 33 to reset. The movement of the rotating block 41 causes multiple insert rods 39 to move and insert into the insertion hole 36. The rotating block 41 is fixed under the insertion of the insert rods 39 and the insertion hole 36.

[0044] Two guide rods 46 are slidably connected to the surface of the support plate 45. One end of each guide rod 46 is fixedly connected to the surface of the first fixed frame 5 and the second fixed frame 6, respectively. The two support plates 45 are slidably connected to the first fixed frame 5 and the second fixed frame 6 via the guide rods 46. A second spring 47 for resetting the movement of the support plate 45 is sleeved on the surface of each guide rod 46. The installation method of the second spring 47 is existing technology and can be implemented by those skilled in the art. It only needs to be used for resetting the movement of the support plate 45. An arc-shaped block 48 is fixedly installed on the top surface of each of the two support plates 45. A fixed plate 40 is fixedly installed on the surface of multiple insert rods 39. An arc-shaped ring 49 for pressing the arc-shaped block 48 is fixedly installed on the surface of the fixed plate 40. The setting of the guide rods 46 makes the movement of the support plate 45 more stable.

[0045] The steps for using this invention are as follows: When using this intelligent laser welding device for multi-angle adjustment of metal parts, if the metal plate 4 is thin, the fish-scale welding method in Example 1 is not required. The thin metal plate 4 is placed in the placement frame 3 and fixed, following the same placement and fixing steps as in Example 1. After the metal plate 4 is placed, the rotating block 41 is manually pulled outward. The movement of the rotating block 41 causes multiple insertion rods 39 to move and disengage from multiple insertion holes 36. The movement of the rotating block 41 also causes the spline rod 37 to slide and stretch the first spring 38 inside the spline cylinder 32. The movement of the multiple insertion rods 39 causes the fixed plate 40 and the arc ring 49 to move. The movement of the arc ring 49... The arc-shaped block 48 is squeezed, causing the support plate 45 to slide off the connecting groove 44 on the surface of the guide rod 46. At this time, the sliding frame 8 is no longer limited by the support plate 45. The rotating block 41 is manually rotated, and the rotation angle of the rotating block 41 is ninety degrees. The rotation of the rotating block 41 causes the spline rod 37 to rotate, thereby causing the spline cylinder 32 to rotate, which in turn causes the cam 33 to rotate and squeeze the top surface of the sliding frame 8. At this time, the sliding frame 8 moves downward in the slide groove 7 and squeezes the two dampers 35. When the cam 33 rotates ninety degrees, the multiple insert rods 39 rotate, causing the arc-shaped ring 49 to rotate. The rotation of the arc-shaped ring 49 squeezes the arc-shaped block 48, and the movement of the arc-shaped block 48 continues. The second spring 47 is stretched by the sliding support plate 45 on the surface of the guide rod 46. When the rotating block 41 rotates to ninety degrees, it moves back to the direction of the cam 33. The movement of the rotating block 41 moves multiple insert rods 39 into the insertion hole 36. The rotating block 41 is fixed by the insertion of the insert rods 39 and the insertion hole 36. At this time, the support plate 45 moves a certain distance with the second spring 47, but the support plate 45 is squeezed by the arc ring 49. Therefore, the support plate 45 cannot be inserted into the connecting groove 44. The two sliding brackets 8 move downward in the sliding groove 7, which moves the first toothed plate 9 and the second toothed plate 10, so that the first toothed plate 9 and the second toothed plate 10... The position of the first toothed plate 9 and the movement trajectory of the gear 15 are not at the same height. The rotation of the motor 21 drives the threaded rod 20 to rotate (the speed of the motor 21 is controllable), which causes the sliding block 19 to move and drive the slider 13 to move inside the movable groove 12. The movement of the slider 13 drives the rotating shaft 14, the gear 15 and the welding head 16 to move. The welding head 16 works to weld the metal plate 4. Since the positions of the first toothed plate 9 and the second toothed plate 10 are not at the same height as the movement trajectory of the gear 15, the welding equipment performs normal straight-line welding on the thin metal plate 4. This welding equipment can simultaneously meet the welding of metal plates 4 of different thicknesses, increasing the functionality and practicality of the welding equipment.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart laser welding device for multi-angle adjustment of metal parts, comprising a device body (1) and a welding table (2) fixedly mounted on its top surface, characterized in that: The surface of the welding table (2) is fixedly mounted with a placement rack (3). The metal plate (4) to be welded is placed inside each of the two placement racks (3). A first fixing rack (5) and a second fixing rack (6) are respectively provided at the corresponding ends of the two placement racks (3). A sliding groove (7) is provided on the inner side of both the first fixing rack (5) and the second fixing rack (6). A sliding frame (8) of the same height is provided inside each of the two sliding grooves (7). Multiple first toothed plates (9) and second toothed plates (10) are fixedly mounted on the inner side of each of the two sliding frames (8). The multiple first toothed plates (9) and... The second toothed plates (10) are staggered with each other. A mounting frame (11) is fixedly installed on the middle surface of the welding table (2). A through movable groove (12) is opened on the surface of the mounting frame (11). A matching slider (13) is slidably connected inside the movable groove (12). A rotating shaft (14) is rotatably connected to the bottom surface of the slider (13). A gear (15) that meshes with the first toothed plate (9) and the second toothed plate (10) is fixedly installed on the bottom surface of the rotating shaft (14). A welding head (16) for welding the metal plate (4) is fixedly installed on one side of the surface of the gear (15). The inner sides of both of the two placement racks (3) are fixedly equipped with brackets (26), and the inside of the brackets (26) is rotatably connected with a two-way screw (27). The surface of the two-way screw (27) is threadedly connected with a clamping plate (28) for holding the metal plate (4). A rotatable turntable (29) is provided on one side of the placement rack (3). The turntable (29) is fixedly connected to the two-way screw (27). The surfaces of the first fixed rack (5) and the second fixed rack (6) are both provided with a connecting groove (44) communicating with the slide groove (7). The inside of the connecting groove (44) is slidably connected with a support plate (45) for supporting the sliding rack (8). The inner sides of the first fixed frame (5) and the second fixed frame (6) are provided with rotating grooves (30) that communicate with the sliding groove (7). The surfaces of the first fixed frame (5) and the second fixed frame (6) are provided with rotating holes (31). A spline cylinder (32) is rotatably connected inside the rotating hole (31). A cam (33) for pressing the sliding frame (8) is fixedly installed on one end surface of the spline cylinder (32). The surfaces of the first fixed frame (5) and the second fixed frame (6) are provided with through grooves (34) that communicate with the rotating grooves (30). Two dampers (35) are fixedly installed between the sliding frame (8) and the sliding groove (7). The first fixing frame (5) and the second fixing frame (6) are provided with multiple insertion holes (36) on their surfaces. The multiple insertion holes (36) are located around the rotating hole (31). The spline tube (32) is connected to a spline rod (37) by a spline. A first spring (38) is elastically connected between the spline rod (37) and the spline tube (32). Insert rods (39) are inserted into the interior of the multiple insertion holes (36). A rotating block (41) is fixedly installed on one end surface of the multiple insert rods (39). A limiting ring (42) for limiting the rotating block (41) is provided on the surface of the spline rod (37). A connecting rod (43) is provided between the two limiting rings (42) and the first fixing frame (5) and the second fixing frame (6). The two limiting rings (42) are fixedly connected to the surfaces of the first fixing frame (5) and the second fixing frame (6) respectively through the connecting rod (43). Two guide rods (46) are slidably connected to the surface of the support plate (45). One end of each guide rod (46) is fixedly connected to the surface of the first fixed frame (5) and the second fixed frame (6), respectively. The two support plates (45) are slidably connected to the first fixed frame (5) and the second fixed frame (6) through the guide rods (46). A second spring (47) for the movement and reset of the support plate (45) is sleeved on the surface of any one of the guide rods (46). An arc-shaped block (48) is fixedly installed on the top surface of each of the two support plates (45). A fixed plate (40) is fixedly installed on the surface of the plurality of insert rods (39). An arc-shaped ring (49) for squeezing the arc-shaped block (48) is fixedly installed on the surface of the fixed plate (40).

2. The intelligent laser welding device for multi-angle adjustment of metal parts according to claim 1, characterized in that: The first fixed frame (5) and the second fixed frame (6) are positioned opposite each other. A connecting plate (17) is provided between the first fixed frame (5) and the second fixed frame (6) and the two placement frames (3). The first fixed frame (5) and the second fixed frame (6) are fixedly connected to the end surfaces of the two placement frames (3) through the connecting plate (17). The sliding frame (8) is slidably connected to the inside of the sliding groove (7).

3. The intelligent laser welding device for multi-angle adjustment of metal parts according to claim 1, characterized in that: A slide (18) is fixedly mounted on the surface of the mounting bracket (11), and a threaded rod (20) is rotatably connected inside the slide (18). A sliding block (19) is fixedly mounted on the surface of the slider (13), and the sliding block (19) is threadedly connected to the threaded rod (20).

4. The intelligent laser welding device for multi-angle adjustment of metal parts according to claim 3, characterized in that: A motor (21) is fixedly mounted on one end surface of the slide (18), and the output end of the motor (21) is fixedly connected to the threaded rod (20).

5. The intelligent laser welding device for multi-angle adjustment of metal parts according to claim 3, characterized in that: A spacing sensor (22) for detecting the welding distance between two metal plates (4) is fixedly installed on the inner side of the mounting bracket (11). A controller (23) is fixedly installed at one corner of the surface of the welding table (2). The spacing sensor (22) is electrically connected to the controller (23) through a wire. The controller (23) is electrically connected to the motor (21) through a wire.

6. The intelligent laser welding device for multi-angle adjustment of metal parts according to claim 5, characterized in that: A slot (24) is provided on one side surface of the mounting bracket (11), and a line (25) is provided inside the slot (24). One end of the line (25) is connected to the welding head (16), and the other end of the line (25) is connected to the device body (1).

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