Multi-axial laser welding structure and equipment

Abstract

The invention relates to the technical field of laser welding, in particular to a multi-axial laser welding structure and equipment. The two sides of the upper end of a plate are clamped and fixed through an air bag, a first electric hydraulic telescopic rod drives a plurality of sets of positioning plates to move downwards, when the positioning plates move downwards, a mounting shell is driven to move downwards, and when the mounting shell moves downwards, a winding roller rotates, so that a flexible layer and an expansion pad are released, and when the first electric hydraulic telescopic rod moves downwards, an air cylinder is extruded; gas in the cylinder is conveyed into the expansion pad, so that the expansion pad is expanded; when the expansion pad expands, one side of the expansion pad is in extrusion contact with one side of the plate, meanwhile, the expansion pad expands to extrude the flexible layer to be in extrusion contact with one side of the positioning plate, and the two sides of the plate can be clamped and fixed through the action of the expansion pad and the flexible layer, so that the plate is fixed conveniently, and the stability of the plate during laser welding is improved; and the plate is prevented from deforming in the welding process, so that the welding quality is not influenced.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a multi-axial laser welding structure and equipment. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. The thickness of workpieces suitable for laser welding is generally between 3mm and 10mm. The efficiency and quality of laser welding for workpieces exceeding 10mm will be affected. Currently, when laser welding is used to weld thin plates, due to the thin plates, they are prone to deformation during the welding process, thereby affecting the welding quality at the welding position. Therefore, a multi-axial laser welding structure and equipment are proposed to facilitate the fixation of thin plates, improve the stability of thin plates during laser welding, and facilitate the welding of thin plates. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a multi-axial laser welding structure and equipment, which is convenient for fixing thin plates, improving the stability of thin plates during laser welding, and facilitating welding of thin plates.

[0004] The technical solution adopted by the present invention to solve its technical problems is a multi-axial laser welding structure, including a horizontally arranged support platform, a welding structure is provided on the outer side of the support platform, a rotating structure for driving the plate to rotate is provided on the support platform, an adjustable clamping structure for adjusting the clamping area of ​​the plate is provided on the rotating structure, a lifting structure for driving the adjustable clamping structure to rise and fall is connected between the rotating structure and the adjustable clamping structure, and a plurality of groups of expansion fixing structures for clamping the two sides of the plate by expansion are provided in the adjustable clamping structure.

[0005] Specifically, the rotating structure includes a circular groove with an opening upwardly arranged on the upper surface of the support platform, a rotating disk is sealed and rotatably connected to the upper inner wall of the circular groove, a vertically arranged driving motor is arranged in the circular groove, a fixed end of the driving motor is fixedly connected to the bottom of the circular groove, an output end of the driving motor is fixedly connected to the lower surface of the rotating disk, and the height of the rotating disk is higher than the support platform; A connecting pipe connected to the inside of the circular groove is disposed on the lower surface of the support platform, and the connecting pipe is connected to the negative pressure device. A plurality of groups of circumferentially distributed air outlets are disposed on the upper surface of the turntable.

[0006] Specifically, a driving structure is provided above the adjustable clamping structure, and the driving structure is used to drive the expansion fixing structure to work; the adjustable clamping structure includes a horizontally arranged fixing plate, and both ends of the lower surface of the fixing plate are fixedly connected to the lifting structure, and the lower surface of the fixing plate is provided with a horizontally arranged groove, and a plurality of groups of symmetrically arranged mounting grooves are provided in the groove, and airbags are provided in the mounting grooves, and a friction pad is provided on the outer side of the airbag, and a first joint is connected to one side of the airbag, and a connecting channel is provided in the fixing plate, and the connecting channel is connected to the driving structure, and the first joint is connected to the connecting channel.

[0007] Specifically, several groups of the expansion fixing structures all include slide grooves symmetrically arranged on both sides of the slot, the slide grooves are arranged to penetrate up and down, and the slide grooves are slidably connected with vertically arranged positioning plates, and the lower ends of several groups of the positioning plates are fixedly connected with mounting shells, and the mounting shells are rotatably connected with horizontally arranged winding rollers, one end of the winding roller is connected to the inner wall of the mounting shell with a socket spring, and the outer side of the winding roller is wound with an expansion structure; The expansion structure includes a flexible layer and an expansion pad, one side of the expansion pad is fixedly connected to one side of the flexible layer, one end of the flexible layer is fixedly connected to the lower surface of the fixed plate, the upper surface of the expansion pad is connected to a second joint, and the second joint is connected to the connecting channel through a pipeline.

[0008] Specifically, the driving structure includes a plurality of groups of cylinders, the fixed ends of the cylinders are connected with air outlet joints, the air outlet joints are connected with the communication channel through pipelines, the output ends of the cylinders are fixedly connected with an extrusion plate, the upper surface of the extrusion plate is provided with a vertically arranged first electric hydraulic telescopic rod, the output end of the first electric hydraulic telescopic rod is fixedly connected with the upper surface of the extrusion plate, the upper surface of the fixed plate has two ends fixedly connected with vertically arranged support plates, the fixed end of the first electric hydraulic telescopic rod is fixedly connected with a horizontally arranged connecting plate, and the two ends of the connecting plate are respectively fixedly connected with one side of the support plate; One side of one group of the mounting shells is fixedly connected with a detection structure for detecting the position of the plate.

[0009] Specifically, the lifting structure includes two groups of second electric hydraulic telescopic rods symmetrically arranged on the turntable, the fixed ends of the second electric hydraulic telescopic rods are fixedly connected to the upper surface of the turntable, and the output ends of the two groups of second electric hydraulic telescopic rods are fixedly connected to the lower surface of the fixed plate.

[0010] By adopting the above technical solution, when the extrusion plate drives the positioning plate and the mounting shell to move down a certain distance, the detection structure on one side of the mounting shell passes over the lower end of the plate, and the first electric hydraulic telescopic rod is closed by relying on the detection structure. At this time, the extrusion plate no longer moves down, and the second electric hydraulic telescopic rod is relied on to drive the fixed plate and the plate to move down. When the plate moves down a certain distance, the lifting structure is closed. At this time, the two groups of plates are close and in contact, and the two groups of plates are welded by relying on the welding structure, thereby further improving the convenience of welding the plates.

[0011] Specifically, a plurality of groups of push switches are provided in the slot, and the first electric hydraulic telescopic rod is opened when the push switches are squeezed.

[0012] Specifically, the detection structure includes a fixing rod fixedly connected to one side of one group of the mounting shells, one end of the fixing rod is fixedly connected to an inclined support rod, and one end of the support rod away from the fixing rod is fixedly connected to a detection sensor.

[0013] Specifically, the welding structure includes a base installed on one side of the support platform, a mechanical arm is provided above the base, and a laser welding head is provided at one end of the mechanical arm.

[0014] A multi-axial laser welding structure comprises the above-mentioned multi-axial laser welding structure.

[0015] Beneficial effects of the present invention: (1) The multi-axial laser welding structure and equipment described in the present invention rely on air bags to clamp and fix the upper ends of the plates. As the first electric hydraulic telescopic rod drives a plurality of positioning plates to move downward, the positioning plates drive the mounting shell to move downward. When the mounting shell moves downward, the winding roller rotates, thereby releasing the flexible layer and the expansion pad. As the first electric hydraulic telescopic rod moves downward to squeeze the cylinder, the gas in the cylinder is transported to the expansion pad to expand the expansion pad. When the expansion pad expands, one side of the expansion pad is squeezed and contacted with one side of the plate. At the same time, the expansion pad expands and squeezes the flexible layer and one side of the positioning plate. Relying on the action of the expansion pad and the flexible layer, the two sides of the plate can be clamped and fixed, thereby facilitating the fixing of the plate, improving the stability of the plate during laser welding, and preventing the plate from deforming during welding, thereby affecting the welding quality.

[0016] (2) In the multi-axial laser welding structure and equipment described in the present invention, for plates of different thicknesses, the air supply of the cylinder of the driving structure remains unchanged during operation. Therefore, the thicker the plate to be welded, the smaller the expansion range of the airbag and the expansion pad. As the gas in the cylinder enters the airbag and the expansion pad, the greater the air pressure in the airbag and the expansion pad, the greater the clamping force on the plate. This facilitates automatically increasing the clamping force of the expansion structure on the plate according to the thickness of the plate, thereby further improving the stability of the plate during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 is an axonometric view of the present invention; Figure 2 is a side view of the present invention; Figure 3 It is a partial cross-sectional schematic diagram of the support platform of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing plate of the present invention; Figure 5 for Figure 4 A magnified image of area A; Figure 6 It is a schematic diagram of the structure after the positioning plate of the present invention is moved downward; Figure 7 for Figure 6 A magnified view of area B; Figure 8 This is a schematic diagram of the structure after the extrusion plate of the present invention moves downward; Fig. 9 for Figure 8 A magnified view of region C; Fig.10 It is a schematic diagram of the second electric hydraulic telescopic rod of the present invention after being moved downward; Fig.11 It is a schematic diagram of the structure of the flexible layer and the expansion pad of the present invention; In the figure: 1. support table; 2. circular groove; 3. turntable; 4. drive motor; 5. connecting pipe; 6. air outlet; 7. fixing plate; 8. slot; 9. mounting slot; 10. airbag; 11. first joint; 12. connecting channel; 13. slide groove; 14. positioning plate; 15. mounting shell; 16. winding roller; 17. flexible layer; 18. expansion pad; 19. second joint; 20. cylinder; 21. air outlet joint; 22. extrusion plate; 23. first electric hydraulic telescopic rod; 24. support plate; 25. connecting plate; 26. second electric hydraulic telescopic rod; 27. push switch; 28. fixing rod; 29. ​​support rod; 30. detection sensor; 31. base; 32. robotic arm; 33. laser welding head. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] In order to facilitate the fixing of the thin plate, improve the stability of the thin plate during laser welding, and facilitate the welding of the thin plate, as an embodiment of the present invention, Figure 1 , Figure 2 As shown, a multi-axial laser welding structure and equipment of the present invention comprises a horizontally arranged support platform 1, a welding structure is arranged on the outer side of the support platform 1, a rotating structure for driving the plate to rotate is arranged on the support platform 1, an adjustable clamping structure for adjusting the clamping area of ​​the plate is arranged on the rotating structure, a lifting structure for driving the adjustable clamping structure to lift and lower is connected between the rotating structure and the adjustable clamping structure, and a plurality of groups of expansion fixing structures for clamping the two sides of the plate by expansion are arranged in the adjustable clamping structure.

[0021] When in use, when it is necessary to weld a plate, the plate to be welded is placed on the rotating structure, and the other plate to be welded is placed in the adjustable clamping structure, and the plate is clamped and fixed by the adjustable clamping structure, and the outer side of the plate is fixed by the expansion fixing structure, so as to improve the overall stability of the plate and prevent the plate from being deformed during the welding process, thereby affecting the welding quality; After the plate is fixed by the expansion fixing structure, the lifting structure drives the adjustable clamping structure and the plate to move downward synchronously. When the plate moves downward for a certain distance, the two sets of plates are in contact. At this time, the welding structure is used to weld the two sets of plates at the positions close to each other, thereby completing the welding work of the plate. When the welding of one side of the two groups of plates is completed, the other side of the plate can be welded according to the actual welding situation. The rotating structure drives the lifting structure and the plate to rotate synchronously. When the plate rotates a certain distance, the other side of the two groups of plates faces the welding structure, and the welding structure is used to weld the other side of the two groups of plates. This makes it convenient to perform single-sided welding or double-sided welding on the plate according to the actual processing situation, further improving the welding convenience of the plate.

[0022] In order to facilitate the rotation of the turntable 3, for example, Figure 1 , Figure 2 , Figure 3 As shown, the present invention also includes that the rotating structure includes a circular groove 2 with an opening upwardly arranged on the upper surface of the support platform 1, a rotating disk 3 is sealed and rotatably connected to the upper inner wall of the circular groove 2, a vertically arranged driving motor 4 is arranged in the circular groove 2, a fixed end of the driving motor 4 is fixedly connected to the bottom of the circular groove 2, an output end of the driving motor 4 is fixedly connected to the lower surface of the rotating disk 3, and the height of the rotating disk 3 is higher than the support platform 1; A connecting pipe 5 communicating with the inside of the circular groove 2 is disposed on the lower surface of the support platform 1 , and the connecting pipe 5 is connected with the negative pressure device. A plurality of groups of circumferentially distributed air outlet holes 6 are disposed on the upper surface of the turntable 3 .

[0023] When in use, when it is necessary to weld the plate, the plate to be welded is placed on the turntable 3, and at the same time, the negative pressure device is connected by the connecting pipe 5, and the negative pressure generated by the negative pressure device cooperates with the air outlet 6 to adsorb and fix the plate on the turntable 3, so as to further ensure the stability of the plate during welding; When the other side of the plate needs to be welded, the driving motor 4 drives the turntable 3 to rotate, and the turntable 3 drives the plate on the turntable 3 and another set of plates on the adjustable clamping structure to rotate synchronously. When the two sets of plates rotate a certain distance, the welding structure can be used to weld the other side of the plate, thereby improving the convenience of welding. It should be pointed out that the negative pressure device of the present invention may be a negative pressure pump.

[0024] In order to facilitate the clamping and fixing of the plate, for example, Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the present invention also includes that a driving structure is provided above the adjustable clamping structure, and the driving structure is used to drive the expansion fixing structure to work; the adjustable clamping structure includes a horizontally arranged fixing plate 7, and both ends of the lower surface of the fixing plate 7 are fixedly connected to the lifting structure, and the lower surface of the fixing plate 7 is provided with a horizontally arranged slot 8, and a plurality of groups of symmetrically arranged mounting slots 9 are provided in the slot 8, and airbags 10 are provided in the mounting slots 9, and a friction pad is provided on the outer side of the airbag 10, and a first joint 11 is connected to one side of the airbag 10, and a connecting channel 12 is provided in the fixing plate 7, and the connecting channel 12 is connected to the driving structure, and the first joint 11 is connected to the connecting channel 12.

[0025] When in use, the plate to be welded is placed vertically with the welding surface of the plate facing downward, and the upper end of the plate is inserted into the slot 8. When the upper end of the plate enters the slot 8, the driving structure moves downward. When the driving structure moves downward, the gas in the driving structure enters the airbag 10 through the first joint 11 by relying on the connecting channel 12, so that several groups of airbags 10 are expanded and pressed and contacted with both sides of the plate, so as to clamp and fix the plate, and the friction pad can further improve the stability of the airbag 10 clamping; After the airbag 10 completes clamping of the panel, the driving structure continues to move downward to drive the expansion and fixing structure to work, and relies on the expansion and fixing structure to fix both sides of the panel, thereby further improving the stability of the panel and preventing the panel from being deformed during welding due to its thin thickness, thereby affecting the welding quality.

[0026] In order to further improve the stability of the plate, for example, Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.11 As shown, the present invention also includes that several groups of expansion fixing structures all include slide grooves 13 symmetrically arranged on both sides of the slot 8, the slide grooves 13 are arranged to penetrate from top to bottom, and vertically arranged positioning plates 14 are slidably connected in the slide grooves 13, and the lower ends of several groups of positioning plates 14 are fixedly connected to mounting shells 15, and a horizontally arranged winding roller 16 is rotatably connected in the mounting shell 15, a socket spring is connected between one end of the winding roller 16 and the inner wall of the mounting shell 15, and an expansion structure is wound around the outer side of the winding roller 16; The expansion structure includes a flexible layer 17 and an expansion pad 18, one side of the expansion pad 18 is fixedly connected to one side of the flexible layer 17, one end of the flexible layer 17 is fixedly connected to the lower surface of the fixed plate 7, and the upper surface of the expansion pad 18 is connected to a second joint 19, which is connected to the connecting channel 12 through a pipeline.

[0027] When in use, after the airbag 10 clamps and fixes both sides of the upper end of the plate, the driving structure moves downward to drive several groups of positioning plates 14 to move downward, and the positioning plates 14 move downward to drive the mounting shell 15 to move downward, and the winding roller 16 rotates when the mounting shell 15 moves downward, thereby releasing the flexible layer 17 and the expansion pad 18, and at the same time, the rotation of the winding roller 16 drives the socket spring to store force, and as the driving structure moves downward, the gas in the driving structure is transported to the expansion pad 18 by virtue of the connection between the second joint 19 and the connecting channel 12, so as to expand the expansion pad 18; when the expansion pad 18 expands, one side of the expansion pad 18 is pressed and contacted with one side of the plate, and at the same time, the expansion pad 18 expands and squeezes the flexible layer 17 and presses and contacts with one side of the positioning plate 14, and the expansion pad 18 and the flexible layer 17 can be used to clamp and fix both sides of the plate, so as to further improve the stability of the plate; After the driving structure moves down a certain distance, the driving structure no longer moves down. At this time, the positioning plate 14 is located above the welding position of the plate, and the fixing plate 7 is driven to move down by the lifting structure. When the fixing plate 7 moves down, the plate is driven to move down synchronously. When the plate moves down to a specific position, it is convenient to perform welding operations on the two groups of plates.

[0028] In order to facilitate the downward movement of the positioning plate 14, for example, Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the present invention also includes that the driving structure includes a plurality of groups of cylinders 20, the fixed end of the cylinder 20 is connected with an air outlet joint 21, the air outlet joint 21 is connected with the communication channel 12 through a pipeline, the output end of the cylinder 20 is fixedly connected with an extrusion plate 22, the upper surface of the extrusion plate 22 is provided with a vertically arranged first electric hydraulic telescopic rod 23, the output end of the first electric hydraulic telescopic rod 23 is fixedly connected to the upper surface of the extrusion plate 22, the upper surface of the fixed plate 7 is fixedly connected with a vertically arranged support plate 24 at both ends, the fixed end of the first electric hydraulic telescopic rod 23 is fixedly connected with a horizontally arranged connecting plate 25, and the two ends of the connecting plate 25 are respectively fixedly connected to one side of the support plate 24; One side of one set of mounting shells 15 is fixedly connected with a detection structure for detecting the position of the panel.

[0029] When in use, after placing the upper end of the plate in the slot 8, the first electro-hydraulic telescopic rod 23 is opened, and the output end of the first electro-hydraulic telescopic rod 23 moves downward to drive the squeezing plate 22 to move downward synchronously. When the squeezing plate 22 moves downward, the cylinder 20 is squeezed, and the gas is allowed to enter the airbag 10 by relying on the gas outlet joint 21 and the connecting channel 12. At the same time, the airbag 10 expands, and the upper ends of the plate are clamped and fixed by relying on the airbag 10; At the same time, when the extrusion plate 22 moves downward, the positioning plate 14 is driven to move downward synchronously. When the positioning plate 14 moves downward, the expansion structure is unfolded, and the gas in the cylinder 20 enters the expansion pad 18 through the gas outlet joint 21, the connecting channel 12, the pipeline and the second joint 19, and the unfolded expansion pad 18 is expanded, thereby further fixing the two sides of the plate and improving the stability of the plate; When the extrusion plate 22 drives the positioning plate 14 and the mounting shell 15 to move down a certain distance, the detection structure on one side of the mounting shell 15 passes over the lower end of the plate, and the first electric hydraulic telescopic rod 23 is closed by relying on the detection structure. At this time, the extrusion plate 22 no longer moves down, and the lifting structure drives the fixing plate 7 and the plate to move down. When the plate moves down a certain distance, the lifting structure is closed. At this time, the two groups of plates are close to and in contact, and the two groups of plates are welded by relying on the welding structure, so as to further improve the welding convenience of the plates; For panels of different thicknesses, the air supply of the cylinder 20 remains unchanged when the driving structure is working. Therefore, the thicker the panel to be welded, the smaller the expansion range of the airbag 10 and the expansion pad 18. As the gas in the cylinder 20 enters the airbag 10 and the expansion pad 18, the air pressure in the airbag 10 and the expansion pad 18 becomes greater, and thus the clamping force on the panel becomes greater. This facilitates automatically increasing the clamping force of the expansion structure on the panel according to the thickness of the panel, thereby further improving the stability of the panel during welding.

[0030] In order to facilitate the downward movement of the fixing plate 7 and the plate, for example, Figure 1 , Figure 2 , Fig.10 As shown, the present invention also includes that the lifting structure includes two groups of second electric hydraulic telescopic rods 26 symmetrically arranged on the turntable 3, the fixed ends of the second electric hydraulic telescopic rods 26 are fixedly connected to the upper surface of the turntable 3, and the output ends of the two groups of second electric hydraulic telescopic rods 26 are fixedly connected to the lower surface of the fixed plate 7.

[0031] When in use, the extrusion plate 22 drives the positioning plate 14 and the mounting shell 15 to move down a certain distance. At this time, the detection structure on one side of the mounting shell 15 passes over the lower end of the plate, and the first electric hydraulic telescopic rod 23 is closed by relying on the detection structure. At this time, the extrusion plate 22 no longer moves down, and the second electric hydraulic telescopic rod 26 drives the fixing plate 7 and the plate to move down. When the plate moves down a certain distance, the lifting structure is closed. At this time, the two groups of plates are close to and in contact, and the two groups of plates are welded by relying on the welding structure, thereby further improving the convenience of welding the plates.

[0032] For example, Figure 4 , Figure 5 As shown, the present invention also includes that a plurality of groups of push switches 27 are provided in the slot 8, and the first electric hydraulic telescopic rod 23 is opened when the push switches 27 are squeezed.

[0033] When in use, after the upper end of the plate is placed in the slot 8, the plate is squeezed and contacted with the push switch 27 in the slot 8, and the first electric hydraulic telescopic rod 23 is turned on by the push switch 27, and the output end of the first electric hydraulic telescopic rod 23 is driven downward, thereby fixing the plate.

[0034] For example, Figure 2 As shown, the present invention also includes that the detection structure includes a fixed rod 28 fixedly connected to one side of one group of mounting shells 15, one end of the fixed rod 28 is fixedly connected to an inclined support rod 29, and the end of the support rod 29 away from the fixed rod 28 is fixedly connected to a detection sensor 30.

[0035] When in use, after the extrusion plate 22 drives the positioning plate 14 and the mounting shell 15 to move down a certain distance, the detection sensor 30 on one side of the mounting shell 15 passes over the lower end of the plate, and the first electric hydraulic telescopic rod 23 is closed by the detection structure, so that the extrusion plate 22 no longer moves down, and then the second electric hydraulic telescopic rod 26 is opened, and the fixing plate 7 and the plate are driven to move down by the second electric hydraulic telescopic rod 26. When the plate moves down a certain distance, the lifting structure is closed, and the two groups of plates are close to and in contact with each other, and the two groups of plates are welded by the welding structure, so as to further improve the welding convenience of the plates; When the plate welding is completed, the first electric hydraulic telescopic rod 23 is driven to drive the extrusion plate 22 and the positioning plate 14 to reset and move upward. When the extrusion plate 22 resets and moves upward, it no longer squeezes the cylinder 20. At this time, the gas in the airbag 10 and the gas in the expansion pad 18 enter the cylinder 20, and the airbag 10 no longer clamps the plate, and the switch 27 is pressed to reset at the same time; when the positioning plate 14 moves upward, the resetting effect of the socket spring drives the winding roller 16 to rotate, and the winding roller 16 rotates to wind the flexible layer 17 and the expansion pad 18. When the extrusion plate 22 moves up to the initial state, the positioning plate 14 and the expansion structure are synchronously restored to the initial state.

[0036] For example, Figure 1 As shown, the present invention also includes that the welding structure includes a base 31 installed on one side of the support platform 1, a mechanical arm 32 is provided above the base 31, and a laser welding head 33 is provided at one end of the mechanical arm 32.

[0037] During use, after the panels move down a certain distance, the two groups of panels are close to and in contact with each other, and the two groups of panels are welded by the robotic arm 32 in cooperation with the laser welding head 33, thereby further improving the convenience of welding the panels.

[0038] As another embodiment of the present invention, the present invention provides a multi-axial laser welding structure, including the above-mentioned multi-axial laser welding structure, and thus has all the technical effects possessed by a multi-axial laser welding structure.

[0039] When the present invention is used, when it is necessary to weld the plate, the plate to be welded is placed on the turntable 3, and at the same time, the negative pressure device is connected by the connecting pipe 5, and the negative pressure generated by the negative pressure device cooperates with the air outlet 6 to adsorb and fix the plate on the turntable 3, so as to ensure the stability of the plate during welding; At the same time, the upper end of another plate to be welded is placed in the slot 8, and the plate is squeezed and contacted with the push switch 27 in the slot 8. The first electric hydraulic telescopic rod 23 is turned on by pressing the switch 27, and the output end of the first electric hydraulic telescopic rod 23 is driven to move downward. The downward movement of the output end of the first electric hydraulic telescopic rod 23 drives the extrusion plate 22 to move downward synchronously. When the extrusion plate 22 moves downward, the cylinder 20 is squeezed, and the gas is allowed to enter the airbag 10 by relying on the air outlet joint 21 and the connecting channel 12. At the same time, the airbag 10 expands, and the airbag 10 is used to clamp and fix both sides of the upper end of the plate. At the same time, the friction pad can further improve the stability of the clamping of the airbag 10. At the same time, when the extrusion plate 22 moves downward, the positioning plate 14 is driven to move downward synchronously. When the positioning plate 14 moves downward, the mounting shell 15 is driven to move downward. When the mounting shell 15 moves downward, the winding roller 16 rotates, thereby releasing the flexible layer 17 and the expansion pad 18. At the same time, the rotation of the winding roller 16 drives the socket spring to store force. The gas in the cylinder 20 enters the expansion pad 18 through the air outlet joint 21, the connecting channel 12, the pipeline and the second joint 19, and expands the unfolded expansion pad 18. When the expansion pad 18 expands, one side of the expansion pad 18 is pressed and contacted with one side of the plate. At the same time, the expansion pad 18 expands and squeezes the flexible layer 17 and presses and contacts with one side of the positioning plate 14. Relying on the action of the expansion pad 18 and the flexible layer 17, the two sides of the plate can be clamped and fixed, thereby further improving the stability of the plate. When the extrusion plate 22 drives the positioning plate 14 and the mounting shell 15 to move down a certain distance, the detection sensor 30 on one side of the mounting shell 15 passes over the lower end of the plate, and the first electric hydraulic telescopic rod 23 is closed by the detection sensor 30, so that the extrusion plate 22 no longer moves down, and then the second electric hydraulic telescopic rod 26 is opened, and the fixing plate 7 and the plate are driven to move down by the second electric hydraulic telescopic rod 26. When the plate moves down a certain distance, the lifting structure is closed, and the two groups of plates are close to and in contact with each other, and the mechanical arm 32 cooperates with the laser welding head 33 to perform welding operations on the two groups of plates, so as to further improve the welding convenience of the plates; When the other side of the plate needs to be welded, the driving motor 4 drives the turntable 3 to rotate, and the turntable 3 drives the plate on the turntable 3 and another group of plates on the fixed plate 7 to rotate synchronously. When the two groups of plates rotate a certain distance, the other side of the plate can be welded by relying on the welding structure, so that the plate can be welded on one side or on both sides according to the actual processing conditions, further improving the welding convenience of the plate; When the plate welding is completed, the first electric hydraulic telescopic rod 23 is driven to drive the extrusion plate 22 and the positioning plate 14 to reset and move upward. When the extrusion plate 22 resets and moves upward, it no longer squeezes the cylinder 20. At this time, the gas in the airbag 10 and the gas in the expansion pad 18 enter the cylinder 20, and the airbag 10 no longer clamps the plate. At the same time, the switch 27 is pressed to reset; when the positioning plate 14 moves upward, the resetting effect of the socket spring drives the winding roller 16 to rotate, and the flexible layer 17 and the expansion pad 18 are wound by the rotation of the winding roller 16. When the extrusion plate 22 moves upward to the initial state, the positioning plate 14 and the expansion structure are synchronously restored to the initial state; For panels of different thicknesses, the air supply of the cylinder 20 remains unchanged when the driving structure is working. Therefore, the thicker the panel to be welded, the smaller the expansion range of the airbag 10 and the expansion pad 18. As the gas in the cylinder 20 enters the airbag 10 and the expansion pad 18, the air pressure in the airbag 10 and the expansion pad 18 becomes greater, and thus the clamping force on the panel becomes greater. This facilitates automatically increasing the clamping force of the expansion structure on the panel according to the thickness of the panel, thereby further improving the stability of the panel during welding.

[0040] The above shows and describes 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 above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-axial laser welding structure, characterized in that: The invention comprises a horizontally arranged support platform (1), the outer side of the support platform (1) is provided with a welding structure, the support platform (1) is provided with a rotating structure for driving a plate to rotate, the rotating structure is provided with an adjustable clamping structure for adjusting the clamping area of ​​the plate, a lifting structure for driving the adjustable clamping structure to rise and fall is connected between the rotating structure and the adjustable clamping structure, and the adjustable clamping structure is provided with a plurality of groups of expansion fixing structures for clamping the two sides of the plate by expansion.

2. A multi-axial laser welding structure according to claim 1, characterized in that: The rotating structure comprises a circular groove (2) which is arranged on the upper surface of the support platform (1) and opens upward, a rotating disk (3) is connected to the upper inner wall of the circular groove (2) in a sealed and rotatable manner, a vertically arranged driving motor (4) is arranged in the circular groove (2), a fixed end of the driving motor (4) is fixedly connected to the bottom of the circular groove (2), an output end of the driving motor (4) is fixedly connected to the lower surface of the rotating disk (3), and the height of the rotating disk (3) is higher than the support platform (1); The lower surface of the support platform (1) is provided with a connecting pipe (5) connected to the inside of the circular groove (2), and the connecting pipe (5) is connected to the negative pressure equipment. The upper surface of the turntable (3) is provided with a plurality of groups of circumferentially distributed air outlet holes (6).

3. The multi-axial laser welding structure according to claim 2, characterized in that: A driving structure is provided above the adjustable clamping structure, and the driving structure is used to drive the expansion fixing structure to work; the adjustable clamping structure comprises a horizontally arranged fixing plate (7), the two ends of the lower surface of the fixing plate (7) are fixedly connected to the lifting structure, the lower surface of the fixing plate (7) is provided with a horizontally arranged slot (8), the slot (8) is provided with a plurality of groups of symmetrically arranged mounting slots (9), the mounting slots (9) are each provided with an airbag (10), the outer side of the airbag (10) is provided with a friction pad, one side of the airbag (10) is connected to a first joint (11), the fixing plate (7) is provided with a connecting channel (12), the connecting channel (12) is connected to the driving structure, and the first joint (11) is connected to the connecting channel (12).

4. The multi-axial laser welding structure according to claim 3, characterized in that: Several groups of the expansion fixing structures all include slide grooves (13) symmetrically arranged on both sides of the slot (8), the slide grooves (13) are arranged to penetrate from top to bottom, and a vertically arranged positioning plate (14) is slidably connected in the slide grooves (13), and the lower ends of several groups of the positioning plates (14) are fixedly connected to a mounting shell (15), and a horizontally arranged winding roller (16) is rotatably connected in the mounting shell (15), a socket spring is connected between one end of the winding roller (16) and the inner wall of the mounting shell (15), and an expansion structure is wound around the outer side of the winding roller (16); The expansion structure comprises a flexible layer (17) and an expansion pad (18), one side of the expansion pad (18) is fixedly connected to one side of the flexible layer (17), one end of the flexible layer (17) is fixedly connected to the lower surface of the fixed plate (7), the upper surface of the expansion pad (18) is connected to a second joint (19), and the second joint (19) is connected to the communication channel (12) through a pipeline.

5. The multi-axial laser welding structure according to claim 4, characterized in that: The driving structure comprises a plurality of groups of cylinders (20), wherein the fixed ends of the cylinders (20) are connected to air outlet joints (21), wherein the air outlet joints (21) are connected to the communication channel (12) via a pipeline, wherein the output ends of the cylinders (20) are fixedly connected to an extrusion plate (22), wherein the upper surface of the extrusion plate (22) is provided with a vertically arranged first electric hydraulic telescopic rod (23), wherein the output end of the first electric hydraulic telescopic rod (23) is fixedly connected to the upper surface of the extrusion plate (22), wherein both ends of the upper surface of the fixed plate (7) are fixedly connected to a vertically arranged support plate (24), wherein the fixed end of the first electric hydraulic telescopic rod (23) is fixedly connected to a horizontally arranged connection plate (25), wherein both ends of the connection plate (25) are respectively fixedly connected to one side of the support plate (24); One side of one group of the mounting shells (15) is fixedly connected with a detection structure for detecting the position of the plate.

6. The multi-axial laser welding structure according to claim 5, characterized in that: The lifting structure comprises two groups of second electric hydraulic telescopic rods (26) symmetrically arranged on the turntable (3), the fixed ends of the second electric hydraulic telescopic rods (26) being fixedly connected to the upper surface of the turntable (3), and the output ends of the two groups of second electric hydraulic telescopic rods (26) being fixedly connected to the lower surface of the fixed plate (7).

7. The multi-axial laser welding structure according to claim 6, characterized in that: A plurality of groups of push switches (27) are arranged in the slot (8), and the push switches (27) open the first electric hydraulic telescopic rod (23) when being squeezed.

8. The multi-axial laser welding structure according to claim 7, characterized in that: The detection structure comprises a fixing rod (28) fixedly connected to one side of one group of the mounting shells (15), one end of the fixing rod (28) being fixedly connected to an inclined supporting rod (29), and one end of the supporting rod (29) away from the fixing rod (28) being fixedly connected to a detection sensor (30).

9. The multi-axial laser welding structure according to claim 8, characterized in that: The welding structure comprises a base (31) mounted on one side of a support platform (1), a mechanical arm (32) is provided above the base (31), and a laser welding head (33) is provided at one end of the mechanical arm (32).

10. A multi-axial laser welding structure, characterized in that: A multi-axial laser welding structure comprising any one of claims 1 to 9.

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