Laser welding machine for multilayer composite board reaction kettle

Abstract

The invention discloses a multi-layer composite board reaction kettle laser welding machine, and relates to the technical field of welding. The welding gun head and the distance adjusting and position correcting piece are arranged on the outer side of the welding gun head and used for improving the moving stability of the welding gun head at the plate gap position; and a wire collecting mechanism. By arranging the distance adjusting and position correcting piece, the welding gun head vertically moves downwards by holding the welding gun body, a second piston rod injects an aqueous solution in a second piston barrel into a first piston barrel through a flow guide ring and a hose, and when the aqueous solution in the second piston barrel is completely injected into the first piston barrel, a second contact piece makes contact with a first contact piece; due to the fact that the number of the second piston cylinders is three, it can be guaranteed that the end face of the welding gun head and the plate are in a parallel state, and therefore the distance between the welding gun head and the connecting position of the plate is always equal. In this way, the welding effect can be prevented from being affected by shaking in the welding process.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a laser welding machine for a multi-layer composite plate reactor. Background Art

[0002] A handheld laser welding gun uses a high-energy-density laser beam as a heat source for efficient and precise welding. It usually includes a housing and a collimator, a galvanometer, a galvanometer motor, and a focusing lens, all of which are arranged inside the housing. The laser is emitted from the collimator to the galvanometer, reflected by the galvanometer, and then emitted from the focusing lens. After passing through the focusing lens, the laser is emitted from the handheld laser welding gun. The high-energy-density laser beam is precisely projected onto the surface of the material to be welded, causing the material to melt locally and instantly to form a high-quality molten pool, thereby achieving the purpose of welding.

[0003] When welding the plates, the worker needs to hold the welding gun and then move the welding gun to achieve welding of the plates. Since the multi-layer composite plate is thick, the welding end of the plate needs to be "beveled (beveled)" when welding between the plates, so that the splicing end of the composite plate has a "V" shape structure. At this time, the plates are welded. During the welding process, the base layer is welded first to ensure that a weld is formed on the back of the splicing of the plates. For larger gaps in the splicing, the serrated welding method is used (the reciprocating swing of the welding gun is used to fill the wider gaps between the plates during the welding process). During this process, if the swing amplitude of the welding gun is large, it will cause the weld to If the gun moves out of the welding position, it will affect the flatness of the weld edge. If the swing amplitude of the welding gun is small, it will affect the welding effect between the plates and easily cause the change of the gap distance between the welding gun and the plates, which will affect the welding effect. At the same time, when welding wider welds, it is necessary to add welding wire to fill the gap. During the welding process, when a section of welding is completed and the gun needs to be lifted and moved to the next welding position, the welding wire is prone to unnecessary contact with the weld that has not been fully cooled or other parts of the workpiece. During the movement, the weld may be scratched, resulting in scratches, dents and other defects on the weld surface, affecting the appearance and strength of the weld. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-layer composite plate reactor laser welding machine in order to solve the problem that it is inconvenient to control the distance between the welding gun and the weld, and the welding wire is prone to unnecessary contact with the weld that has not been completely cooled or other parts of the workpiece during the movement of the gun.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a multi-layer composite plate reactor laser welder, comprising a welding gun body; A welding gun head is mounted on one end of a welding gun body, wherein a positioning plate is fixedly connected to the bottom of the welding gun body, and a rotating coupling is rotatably connected to the bottom of the positioning plate; An adjusting plate is fixedly connected to the outer side of the rotating shaft, and a wire feeding tube is provided on the adjusting plate; The distance adjustment and position correction part is set on the outside of the welding gun head to improve the stability of the welding gun head moving at the gap position of the plate; The wire retracting mechanism is arranged on the wire feeding tube and is used to retract and retract the welding wire extending out of the wire feeding tube.

[0006] As a further solution of the present invention: the distance adjustment and position correction member includes: A positioning seat is installed on the top of the welding gun body, and a screw rod is rotatably connected to the positioning seat through a bearing, and a guide tube is sleeved on the screw rod; A guide ring is installed at the end of the conduit away from the positioning seat and is located outside the welding gun head; A second piston cylinder is installed on the side of the guide ring away from the conduit. A second piston rod is inserted into the interior of the second piston cylinder and extends to the outside of the second piston cylinder. There are three second piston cylinders, and the three second piston cylinders are evenly spaced at 180 degrees along the center of the guide ring. A ball is provided at an end of the second piston rod away from the second piston cylinder; a telescopic spring, disposed at one end of the second piston rod and connected to the second piston cylinder; The telescopic rod is installed on the outer wall of the guide ring and is connected to the welding gun body; The angle limiting member is arranged at one end of the guide ring and is used to limit the swingable angle of the welding gun body.

[0007] As a further solution of the present invention: the distance adjustment and position correction member further includes: A hose is arranged at the bottom of the guide ring; A first piston cylinder is provided on one side of the positioning plate and is located below the welding gun head; A first piston rod is inserted into the inner side of the first piston cylinder and passes through the positioning plate; A docking sleeve is mounted on the bottom of the welding gun body, and an end of the first piston rod away from the first piston sleeve extends into the interior of the docking sleeve; a second contact piece, provided at one end of the first piston rod and located inside the docking cylinder; The first contact piece is installed inside the docking sleeve and is flush with the second contact piece.

[0008] As a further solution of the present invention: a threaded hole matching the screw rod is provided at one end of the conduit away from the guide ring.

[0009] As a further solution of the present invention: the volume inside the first piston cylinder is three times that of the second piston cylinder, the second piston cylinder is in communication with the guide ring, and the guide ring is in communication with the first piston cylinder through a hose.

[0010] As a further solution of the present invention: the second contact piece is electrically connected to the external power supply through a wire, and the first contact piece is electrically connected to the switch on the welding gun body through a wire.

[0011] As a further solution of the present invention: the wire collecting mechanism includes: A hexagonal plug is inserted into both ends of the rotating shaft, and the outer side of the hexagonal plug is rotatably connected to a positioning ring through a bearing; An L-shaped support frame is installed on the outside of the first piston rod and is located between the first piston cylinder and the docking cylinder; A direct-connected slide rail is mounted on the end of the L-shaped support frame away from the first piston rod, a shift pin is slidably connected to the inner side of the direct-connected slide rail, and the bottom of the direct-connected slide rail is rotatably connected to the outer wall of the positioning ring through a bearing; A correction rod is provided on one side of the positioning plate and passes through the positioning ring; An L-shaped splicing rod is provided at the end of the hexagonal rod away from the rotating shaft; A connecting chamber is provided on the wire feeding tube, and the L-shaped splicing rod is slidably connected to the connecting chamber; A straight rack is provided at one end of the L-shaped splicing rod and is located above the connecting compartment; The guide roller is rotatably connected to the interior of the connection warehouse. The top of the guide roller is provided with a spur gear located above the connection warehouse and meshing with the rotating shaft.

[0012] As a further solution of the present invention: a through hole is provided on the positioning ring which matches the correction rod, the direct-connected slide rail is inclined relative to one end of the L-shaped support frame, the diameter of the shift pin is equal to the inner wall width of the direct-connected slide rail, and there are two guide rollers, and the two guide rollers are symmetrically arranged along the vertical center axis of the connecting bin.

[0013] As a further solution of the present invention: the angle limiting positioning member includes: A positioning rod is rotatably connected to the end of the guide ring away from the guide tube; A bidirectional threaded rod is rotatably connected to the end of the positioning rod away from the guide ring, and two movable slides located on both sides of the positioning rod are slidably sleeved on the bidirectional threaded rod through threads; The positioning card plate is rotatably connected to the end of the movable slide away from the guide ring through a rotating shaft, and the end of the movable slide away from the positioning card plate is fixedly connected to the limited position blocking frame; The card frame is fixedly installed on both sides of the positioning rod, and the movable slide is slidably connected to the card frame; The splicing seat is installed at one end of the card frame away from the positioning rod, and one side of the splicing seat is rotatably connected to a guide roller through a rotating shaft.

[0014] As a further solution of the present invention: the end of the positioning card away from the movable slide is rotatably connected to the positioning card on the other movable slide through a rotating shaft, and the vertical center axis of the connection between the positioning card is aligned with the vertical center axis of the positioning rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a distance adjustment and position correction part, the welding gun head is moved vertically downward by holding the welding gun body, and the second piston rod injects the aqueous solution inside the second piston cylinder into the first piston cylinder through the guide ring and the hose. When the aqueous solution inside the second piston cylinder is completely injected into the first piston cylinder, the second contact piece contacts the first contact piece. At this time, the switch on the welding gun body is triggered, and the welding gun body is powered on. Since there are three second piston cylinders, the end face of the welding gun head and the plate are parallel to each other, so that the distance between the welding gun head and the connection between the plate is always equal, which can prevent the welding effect from being affected by shaking during the welding process. The guide ring can also be moved by rotating the screw rod to adjust the distance from the ball bearing to the end face of the welding gun head after the second piston rod is fully retracted. In this way, the distance from the welding gun head to the weld can be adjusted, thereby increasing the applicability of the equipment. 2. By setting up a wire retracting mechanism, when the second contact piece contacts the first contact piece, the shift pin moves from one end of the direct-connected slide rail to the other end of the direct-connected slide rail, and the spur rack is separated from the spur gear. When the gun is raised, the ball bearing is separated from the plate. At this time, the second piston rod is restored under the action of the elastic restoring force of the telescopic spring, so that the first piston rod can be restored, so that the spur rack is meshed with the spur gear again, and the spur gear is driven to rotate in the opposite direction, so that the welding wire is retracted into the wire feed tube again, effectively avoiding unnecessary contact between the welding wire and the uncooled weld or other parts of the workpiece during the movement of the welding gun body, preventing the weld from being scratched, resulting in scratches, dents and other defects on the weld surface, further improving the surface flatness of the weld and improving the welding quality; 3. By setting an angle limiting positioning piece, before welding the plates, the angle between the positioning clamps can be adjusted to be equal to the angle of the gap between the plates by rotating the two-way threaded rod. At this time, the distance between the limiting barrier frame and the welding gun head will also increase with the increase of the angle between the positioning clamps. After that, the positioning clamps can be buckled into the gap between the plates to make one side of the positioning clamps fit with the splicing inclined surface on the plates. When the welding gun body is swung, the guide ring will swing relative to the positioning rod. At this time, the limiting barrier frame will limit the swing amplitude of the welding gun head to prevent the welding gun head from moving out of the gap between the plates during welding, thereby further improving the integrity of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the welding gun body of the present invention; Figure 3 This is a schematic diagram of the connection between the screw rod and the guide ring of the present invention; Figure 4 This is a schematic diagram of the connection between the guide ring and the second piston cylinder of the present invention; Figure 5 This is a schematic diagram of the connection between the welding gun head and the adjustment plate of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the internal structure of the docking sleeve of the present invention; Figure 8 This is a schematic diagram of the connection between the connecting compartment and the L-shaped splicing rod of the present invention; Figure 9 This is a schematic diagram of the internal structure of the connection chamber of the present invention; Figure 10 It is a structural schematic diagram of the angle limiting positioning component of the present invention.

[0017] Figure: 1. Welding gun body; 2. Welding gun head; 3. Positioning plate; 4. Adjustment plate; 5. Wire feed tube; 6. Positioning seat; 7. Screw; 8. Conduit; 9. Guide ring; 10. Telescopic rod; 11. Docking cylinder; 12. First piston rod; 13. First piston cylinder; 14. Hose; 15. Second piston cylinder; 16. Connecting chamber; 17. Second piston rod; 18. Telescopic spring; 19. Shifting latch; 20. L-shaped support frame; 21 , direct-connected slide rail; 22. Correction rod; 23. L-shaped splicing rod; 24. Hexagonal plug rod; 25. Positioning ring; 26. Rotary coupling; 27. First contact piece; 28. Second contact piece; 29. Spur gear; 30. Guide roller; 31. Ball bearing; 32. Spur rack; 33. Positioning rod; 34. Bidirectional threaded rod; 35. Movable slide; 36. Limiting barrier frame; 37. Card frame; 38. Guide roller; 39. Positioning card plate; 40. Splicing seat. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0020] Example 1 See also Figures 1 to 10 In an embodiment of the present invention, a multi-layer composite plate reactor laser welder includes a welding gun body 1; The welding gun head 2 is mounted on one end of the welding gun body 1. The bottom of the welding gun body 1 is fixedly connected to a positioning plate 3, and the bottom of the positioning plate 3 is rotatably connected to a rotating shaft 26. The adjusting plate 4 is fixedly connected to the outer side of the rotating shaft 26, and the adjusting plate 4 is provided with a wire feeding tube 5; The distance adjustment and position correction member is arranged on the outside of the welding gun head 2 and is used to improve the stability of the welding gun head 2 moving at the gap position of the plate; The wire collecting mechanism is provided on the wire feeding tube 5 and is used for retracting the welding wire extending out of the wire feeding tube 5 .

[0021] In this embodiment, the welding gun head 2 is aligned with the joint between the plates, and then the welding gun body 1 is pressed. The distance adjustment and positioning part is used to make the end face of the welding gun head 2 parallel to the welding surface. At this time, the welding wire extending from the wire feeding tube 5 will extend out of the wire feeding tube 5 under the action of the wire retracting mechanism, and then the welding gun head 2 emits a laser beam through the welding gun body 1. At this time, the welding gun head 2 is moved so that the welding gun head 2 moves along the joint of the plates. When the welding gun head 2 is tilted relative to the plates, the distance adjustment and positioning part is used to stop the welding gun body 1. This can prevent the distance between the welding gun head 2 and the plate welding point from increasing or decreasing during the movement, thereby affecting the welding effect. After the welding of one part of the plate is completed, the gun is lifted. At this time, the distance adjustment and positioning part and the wire retracting mechanism are used to make the welding wire extending out of the wire feeding tube 5 retract into the wire feeding tube 5 again, so as to prevent the welding wire from making unnecessary contact with the weld that has not been fully cooled or other parts of the workpiece during the movement.

[0022] Example 2 Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 , the distance adjustment and position correction parts include: The positioning seat 6 is installed on the top of the welding gun body 1. The positioning seat 6 is rotatably connected to a screw rod 7 through a bearing. The screw rod 7 is sleeved with a guide tube 8. The guide ring 9 is installed at the end of the guide tube 8 away from the positioning seat 6 and is located outside the welding gun head 2; The second piston cylinder 15 is installed on the side of the guide ring 9 away from the conduit 8. A second piston rod 17 is inserted into the interior of the second piston cylinder 15 and extends to the outside of the second piston cylinder 15. There are three second piston cylinders 15, and the three second piston cylinders 15 are evenly spaced at 180 degrees along the center of the guide ring 9. The ball 31 is provided at the end of the second piston rod 17 away from the second piston cylinder 15; a telescopic spring 18 , which is disposed at one end of the second piston rod 17 and connected to the second piston cylinder 15 ; The telescopic rod 10 is mounted on the outer wall of the guide ring 9 and connected to the welding gun body 1; The angle limiting member is provided at one end of the guide ring 9 and is used to limit the swingable angle of the welding gun body 1 .

[0023] The distance adjustment and position correction parts also include: The hose 14 is provided at the bottom of the guide ring 9; The first piston cylinder 13 is provided on one side of the positioning plate 3 and is located below the welding gun head 2; The first piston rod 12 is inserted into the inner side of the first piston cylinder 13 and passes through the positioning plate 3; The docking cylinder 11 is mounted on the bottom of the welding gun body 1 , and one end of the first piston rod 12 away from the first piston cylinder 13 extends into the interior of the docking cylinder 11 ; The second contact piece 28 is provided at one end of the first piston rod 12 and is located inside the docking sleeve 11; The first contact piece 27 is installed inside the docking sleeve 11 and is flush with the second contact piece 28 .

[0024] Among them, a threaded hole matching the screw 7 is provided at one end of the conduit 8 away from the guide ring 9, the volume inside the first piston cylinder 13 is three times that of the second piston cylinder 15, the second piston cylinder 15 is in a connected state with the guide ring 9, and the guide ring 9 is in a connected state with the first piston cylinder 13 through the hose 14, the second contact piece 28 is electrically connected to the external power supply through a wire, and the first contact piece 27 is electrically connected to the switch on the welding gun body 1 through a wire.

[0025] In this embodiment, when welding the plate, the welding gun head 2 is first placed above the weld, and then the welding gun head 2 is moved vertically downward by holding the welding gun body 1. At this time, the ball 31 will contact the plate, and the second piston rod 17 will move relative to the second piston cylinder 15, so that the second piston rod 17 injects the aqueous solution inside the second piston cylinder 15 into the first piston cylinder 13 through the guide ring 9 and the hose 14, so that the first piston rod 12 is pushed by the aqueous solution injected into the first piston cylinder 13 and moves toward the docking cylinder 11. When the aqueous solution inside the second piston cylinder 15 is completely injected into the first piston cylinder 13, the second contact piece 28 contacts the first contact piece 27. When the switch on the welding gun body 1 is pressed, the welding gun body 1 is powered on and operated. Since there are three second piston cylinders 15, the end face of the welding gun head 2 can be ensured to be parallel to the plate. While pressing the welding gun body 1, a horizontal movement force is applied to the welding gun body 1 to ensure that the distance between the welding gun head 2 and the connection between the plate is always equal. This can prevent the welding effect from being affected by shaking during the welding process. The guide ring 9 can also be moved by rotating the screw rod 7 to adjust the distance from the ball 31 to the end face of the welding gun head 2 after the second piston rod 17 is fully retracted. In this way, the distance from the welding gun head 2 to the weld can be adjusted, thereby increasing the scope of application of the equipment.

[0026] Example 3 Please refer to Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 , the wire collecting mechanism includes: The hexagonal rod 24 is inserted into both ends of the rotating shaft 26, and the outer side of the hexagonal rod 24 is rotatably connected to the positioning ring 25 through the bearing; An L-shaped support frame 20 is installed on the outside of the first piston rod 12 and is located between the first piston cylinder 13 and the docking cylinder 11; A direct-connected slide rail 21 is mounted on the end of the L-shaped support frame 20 away from the first piston rod 12. A shift pin 19 is slidably connected to the inner side of the direct-connected slide rail 21. The bottom of the direct-connected slide rail 21 is rotatably connected to the outer wall of the positioning ring 25 via a bearing. The correction rod 22 is provided on one side of the positioning plate 3 and passes through the positioning ring 25; The L-shaped splicing rod 23 is provided at the end of the hexagonal plug rod 24 away from the rotating shaft 26; The connecting chamber 16 is provided on the wire feeding tube 5, and the L-shaped splicing rod 23 is slidably connected to the connecting chamber 16; a spur rack 32 , provided at one end of the L-shaped splicing rod 23 and located above the connecting compartment 16 ; The guide roller 30 is rotatably connected to the interior of the connecting chamber 16 . A spur gear 29 is provided on the top of the guide roller 30 and is located above the connecting chamber 16 and meshed with the rotating shaft 26 .

[0027] Among them, a through hole that fits with the correction rod 22 is opened on the positioning ring 25, the direct-connected slide rail 21 is inclined relative to one end of the L-shaped support frame 20, the diameter of the shift pin 19 is equal to the inner wall width of the direct-connected slide rail 21, and there are two guide rollers 30, and the two guide rollers 30 are symmetrically arranged along the vertical center axis of the connecting bin 16.

[0028] When the first piston rod 12 is pressed and the first piston rod 12 is moved toward the docking tube 11, the L-shaped support frame 20 will move with the first piston rod 12. At this time, the direct-connected slide rail 21 squeezes the shift pin 19 to make the positioning ring 25 drive the hexagonal plug rod 24 to move in the direction away from the rotating shaft 26, so that the L-shaped splicing rod 23 moves along the hexagonal plug rod 24. At this time, the L-shaped splicing rod 23 will drive the straight rack 32 to move in the direction away from the connecting chamber 16. During this process, the straight rack 32 will toggle the spur gear 29 to rotate, so that the welding wire between the connecting chambers 16 moves toward the welding wire outlet of the wire feeding tube 5, thereby extending the welding wire out of the wire feeding tube 5. When the second contact piece 28 is in contact with the first contact piece 28, the second contact piece 28 is in contact with the first contact piece 28. When a contact piece 27 comes into contact, the shift pin 19 moves from one end of the direct-connected slide rail 21 to the other end of the direct-connected slide rail 21, and at the same time, the spur rack 32 is separated from the spur gear 29. When the gun is lifted, the ball 31 is separated from the plate. At this time, the second piston rod 17 is restored under the action of the elastic restoring force of the telescopic spring 18, so that the first piston rod 12 can be restored, so that the spur rack 32 is engaged with the spur gear 29 again, and the spur gear 29 is driven to rotate in the opposite direction, so that the welding wire is retracted into the wire feeding tube 5 again, effectively avoiding unnecessary contact between the welding wire and the uncooled weld or other parts of the workpiece during the movement of the welding gun body 1, preventing the weld from being scratched, resulting in scratches, dents and other defects on the weld surface, further improving the surface flatness of the weld and improving the welding quality.

[0029] Example 4 Please refer to Figure 1 、 Figure 10 , the angle limiting parts include: The positioning rod 33 is rotatably connected to the end of the guide ring 9 away from the conduit 8; A bidirectional threaded rod 34 is rotatably connected to the end of the positioning rod 33 away from the guide ring 9. Two movable slides 35 located on both sides of the positioning rod 33 are slidably sleeved on the bidirectional threaded rod 34 through threads; The positioning card plate 39 is rotatably connected to the end of the movable slide 35 away from the guide ring 9 via a rotating shaft, and the end of the movable slide 35 away from the positioning card plate 39 is fixedly connected to the limited position blocking frame 36; The clamping frame 37 is fixedly mounted on both sides of the positioning rod 33, and the movable slide 35 is slidably connected to the clamping frame 37; The splicing seat 40 is installed on one end of the clamping frame 37 away from the positioning rod 33. One side of the splicing seat 40 is rotatably connected to the guide roller 38 through a rotating shaft.

[0030] Among them, the end of the positioning card 39 away from the movable slide 35 is rotatably connected to the positioning card 39 on the other movable slide 35 through a rotating shaft, and the vertical center axis of the connection between the positioning card 39 is aligned with the vertical center axis of the positioning rod 33.

[0031] In this embodiment, before welding the plates, the two-way threaded rod 34 is rotated first, and the two movable slides 35 on the two-way threaded rod 34 are moved toward the positioning rod 33 or at the same time in the direction away from the positioning rod 33 by the rotation of the two-way threaded rod 34. At this time, the angle between the positioning card plates 39 will change with the movement of the movable slide plates 35, so that the angle between the positioning card plates 39 can be adjusted to be equal to the angle of the gap between the plates. At this time, the limiting barrier frame 36 is 2 meters away from the welding gun head. The distance between them will also increase with the increase of the angle between the positioning clamps 39. Then the positioning clamps 39 can be buckled into the gap between the plates to make one side of the positioning clamps 39 fit with the splicing bevel on the plates. When the welding gun body 1 is swung, the guide ring 9 will swing relative to the positioning rod 33. At this time, the limiting barrier frame 36 will limit the swing amplitude of the welding gun head 2 to prevent the welding gun head 2 from moving out of the gap between the plates during the welding process, thereby further improving the integrity of the weld.

[0032] The working principle of the present invention is: before welding the plates, first rotate the two-way threaded rod 34, and the two movable slides 35 on the two-way threaded rod 34 are moved toward the positioning rod 33 or at the same time move away from the positioning rod 33 through the rotation of the two-way threaded rod 34. At this time, the angle between the positioning clamps 39 will change with the movement of the movable slides 35, so that the angle between the positioning clamps 39 can be adjusted to be equal to the angle of the gap between the plates. At this time, the distance between the limiting barrier frame 36 and the welding gun head 2 will also increase with the increase of the angle between the positioning clamps 39, and then the positioning clamps 39 can be buckled into the gap between the plates, so that one side of the positioning clamps 39 is fitted with the splicing bevel on the plate, and welding is completed. The gun head 2 is placed above the weld, and then the welding gun head 2 is moved vertically downward by holding the welding gun body 1. At this time, the ball 31 will contact the plate, and the second piston rod 17 will move relative to the second piston cylinder 15, so that the second piston rod 17 will inject the aqueous solution inside the second piston cylinder 15 into the first piston cylinder 13 through the guide ring 9 and the hose 14, so that the first piston rod 12 is pushed by the aqueous solution injected into the first piston cylinder 13 and moves toward the docking cylinder 11. When the aqueous solution inside the second piston cylinder 15 is completely injected into the first piston cylinder 13, the second contact piece 28 contacts the first contact piece 27. At this time, the switch on the welding gun body 1 is triggered, and the welding gun body 1 is powered on. Due to the number of the second piston cylinder 15 There are three, at this time, it can be ensured that the end face of the welding gun head 2 is parallel to the plate, and a horizontal moving force is applied to the welding gun body 1 while pressing the welding gun body 1, so that the distance between the welding gun head 2 and the connection point of the plate is always equal, so as to prevent the welding effect from being affected by shaking during the welding process, and the guide ring 9 can be moved by rotating the screw rod 7 to adjust the distance from the ball 31 to the end face of the welding gun head 2 after the second piston rod 17 is fully retracted. In this way, the distance from the welding gun head 2 to the weld can be adjusted, thereby increasing the applicability of the equipment. When the ball 31 is squeezed to make the first piston rod 12 move toward the docking sleeve 11, the L-shaped support frame 20 will move with the first piston rod 12 When the second contact piece 28 contacts the first contact piece 27, the shift pin 19 moves from one end of the direct-connected slide rail 21 to the other end of the direct-connected slide rail 21, and the spur rack 32 is separated from the spur gear 29.When the gun is lifted, the ball bearing 31 separates from the plate, and the second piston rod 17 is restored under the elastic restoring force of the telescopic spring 18, so that the first piston rod 12 can be restored, so that the spur rack 32 is meshed with the spur gear 29 again, and the spur gear 29 is driven to rotate in the opposite direction, so that the welding wire is retracted into the wire feeding tube 5 again, effectively preventing the welding wire from making unnecessary contact with the weld seam or other parts of the workpiece that have not been fully cooled during the movement of the welding gun body 1. When the welding gun body 1 is swung, the guide ring 9 will swing relative to the swing rod 33. At this time, the limit blocking frame 36 will limit the swing amplitude of the welding gun head 2, so as to prevent the welding gun head 2 from moving out of the gap between the plates during the welding process, further improving the integrity of the weld seam, preventing scratches on the weld seam, resulting in defects such as scratches and dents on the weld seam surface, further improving the surface flatness of the weld seam, and improving the welding quality.

[0033] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multi-layer composite plate reactor laser welder, characterized in that: comprising a welding gun body (1); A welding gun head (2) is mounted on one end of a welding gun body (1), wherein a positioning plate (3) is fixedly connected to the bottom of the welding gun body (1), and a rotating shaft (26) is rotatably connected to the bottom of the positioning plate (3); An adjusting plate (4) is fixedly connected to the outer side of the rotating shaft (26), and a wire feeding tube (5) is provided on the adjusting plate (4); A distance adjustment and position correction member is provided on the outside of the welding gun head (2) and is used to improve the stability of the welding gun head (2) when moving at the gap position of the plate; The wire collecting mechanism is arranged on the wire feeding tube (5) and is used for performing a retracting process on the welding wire extending out of the wire feeding tube (5).

2. The multi-layer composite plate reactor laser welder according to claim 1, characterized in that: The distance adjustment and position correction member comprises: A positioning seat (6) is mounted on the top of the welding gun body (1); a screw rod (7) is rotatably connected to the positioning seat (6) via a bearing; and a guide tube (8) is sleeved on the screw rod (7); A guide ring (9) is mounted on an end of the guide tube (8) away from the positioning seat (6) and located outside the welding gun head (2); A second piston cylinder (15) is installed on a side of the guide ring (9) away from the conduit (8), and a second piston rod (17) extending to the outside of the second piston cylinder (15) is inserted into the interior of the second piston cylinder (15). The number of the second piston cylinders (15) is three, and the three second piston cylinders (15) are distributed at equal distances at an angle of 180 degrees along the center of the guide ring (9); A ball (31) is provided at an end of the second piston rod (17) away from the second piston cylinder (15); a telescopic spring (18) disposed at one end of the second piston rod (17) and connected to the second piston cylinder (15); A telescopic rod (10) is mounted on the outer wall of the guide ring (9) and is connected to the welding gun body (1); The angle limiting swinging member is arranged at one end of the guide ring (9) and is used to limit the swingable angle of the welding gun body (1).

3. The multi-layer composite plate reactor laser welder according to claim 2, characterized in that: The distance adjustment and position correction member also includes: A hose (14) is arranged at the bottom of the guide ring (9); A first piston cylinder (13) is arranged on one side of the positioning plate (3) and is located below the welding gun head (2); A first piston rod (12) is inserted into the inner side of the first piston cylinder (13) and passes through the positioning plate (3); A docking cylinder (11) is mounted on the bottom of the welding gun body (1), and an end of the first piston rod (12) away from the first piston cylinder (13) extends into the interior of the docking cylinder (11); A second contact piece (28) is provided at one end of the first piston rod (12) and is located inside the docking cylinder (11); The first contact piece (27) is installed inside the docking sleeve (11) and is flush with the second contact piece (28).

4. The multi-layer composite plate reactor laser welder according to claim 3, characterized in that: A threaded hole matching the screw rod (7) is provided at one end of the conduit (8) away from the guide ring (9).

5. The multi-layer composite plate reactor laser welder according to claim 3, characterized in that: The volume inside the first piston cylinder (13) is three times that of the second piston cylinder (15); the second piston cylinder (15) is in communication with the guide ring (9); and the guide ring (9) is in communication with the first piston cylinder (13) via a hose (14).

6. The multi-layer composite plate reactor laser welder according to claim 3, characterized in that: The second contact piece (28) is electrically connected to an external power source via a wire, and the first contact piece (27) is electrically connected to a switch on the welding gun body (1) via a wire.

7. The multi-layer composite plate reactor laser welder according to claim 3, characterized in that: The wire collecting mechanism comprises: A hexagonal plug rod (24) is inserted into both ends of the rotating shaft (26), and the outer side of the hexagonal plug rod (24) is rotatably connected to a positioning ring (25) through a bearing; An L-shaped support frame (20) is mounted on the outside of the first piston rod (12) and is located between the first piston cylinder (13) and the docking cylinder (11); A direct-connected slide rail (21) is mounted on one end of the L-shaped support frame (20) away from the first piston rod (12), wherein the inner side of the direct-connected slide rail (21) is slidably connected to a shifting latch (19), and the bottom of the direct-connected slide rail (21) is rotatably connected to the outer wall of the positioning ring (25) via a bearing; A correction rod (22) is provided on one side of the positioning plate (3) and passes through the positioning ring (25); An L-shaped splicing rod (23) is provided at one end of the hexagonal plug rod (24) away from the rotating shaft (26); A connecting chamber (16) is provided on the wire feeding tube (5), and the L-shaped splicing rod (23) is slidably connected to the connecting chamber (16); A straight rack (32) is provided at one end of the L-shaped splicing rod (23) and is located above the connecting compartment (16); The guide roller (30) is rotatably connected to the interior of the connection chamber (16), and a spur gear (29) is provided on the top of the guide roller (30), which is located above the connection chamber (16) and meshes with the rotating shaft (26).

8. The multi-layer composite plate reactor laser welder according to claim 7, characterized in that: The positioning ring (25) is provided with a through hole that fits with the correction rod (22), the direct-connection slide rail (21) is inclined relative to one end of the L-shaped support frame (20), the diameter of the shift pin (19) is equal to the width of the inner wall of the direct-connection slide rail (21), and there are two guide rollers (30), and the two guide rollers (30) are symmetrically arranged along the vertical center axis of the connection bin (16).

9. The multi-layer composite plate reactor laser welder according to claim 7, characterized in that: The angle limiting positioning member includes: A positioning rod (33) is rotatably connected to an end of the guide ring (9) away from the conduit (8); A bidirectional threaded rod (34) is rotatably connected to one end of the positioning rod (33) away from the guide ring (9), and two movable slides (35) located on both sides of the positioning rod (33) are slidably sleeved on the bidirectional threaded rod (34) through threads; The positioning card plate (39) is rotatably connected to the end of the movable slide plate (35) away from the guide ring (9) via a rotating shaft, and the end of the movable slide plate (35) away from the positioning card plate (39) is fixedly connected to the limited position blocking frame (36); The card frame (37) is fixedly mounted on both sides of the positioning rod (33), and the movable slide (35) is slidably connected to the card frame (37); The splicing seat (40) is installed at one end of the card frame (37) away from the positioning rod (33), and one side of the splicing seat (40) is rotatably connected to the guide roller (38) via a rotating shaft.

10. The multi-layer composite plate reactor laser welder according to claim 7, characterized in that: One end of the positioning card plate (39) away from the movable slide (35) is rotatably connected to the positioning card plate (39) on the other movable slide (35) via a rotating shaft, and the vertical center axis of the connection between the positioning card plates (39) is aligned with the vertical center axis of the positioning rod (33).

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