Welding robot with protection function and using method thereof

Abstract

The invention discloses a welding robot with a protection function, the welding robot comprises a rack, a laser welding head is movably arranged on the rack, a bearing plate is arranged on the rack, two to-be-welded plates are placed on the bearing plate, the welding robot further comprises a pressing assembly and a protection assembly, the pressing assembly is arranged on the bearing plate, and the pressing assembly is used for fixing the two to-be-welded plates; the silica gel adhesive tape is connected with the two plates to be welded; the aluminum foil is arranged on the silica gel adhesive tape; the ceramic gasket is arranged on the aluminum foil; and the high-temperature-resistant surface layer is arranged on the ceramic liner. In the welding process, the aluminum foil, the ceramic gasket and the high-temperature-resistant surface layer are connected to a welding seam between the two plates to be welded through the silica gel adhesive tape. In the laser welding process through the laser welding head, the high-temperature-resistant surface layer can directly resist high-temperature corrosion generated by a molten pool and high-energy laser of the laser welding head, the burning through phenomenon is avoided, and effective protection is provided for welding of two plates to be welded.

Description

Technical Field

[0001] This application relates to the field of welding technology, and in particular to a welding robot with protective functions and its method of use. Background Technology

[0002] Laser deep penetration welding is a commonly used welding technique. It utilizes extremely high laser power density, melting and instantly vaporizing the weld area of ​​the materials to be welded, producing metallic vapor. This vapor is ejected at extremely high speeds, generating recoil pressure that displaces the molten metal, forming a narrow, elongated hole. The laser beam then passes through this hole and directly irradiates the bottom, significantly increasing the energy absorption rate.

[0003] Laser deep penetration welding has concentrated heat, fast welding speed, minimal heat-affected zone, and minimal workpiece deformation, and has been widely used in the welding of ship decks, bridge decks, and other industrial equipment plates.

[0004] However, the extremely high laser power density in laser deep penetration welding causes the molten pool metal to be completely vaporized or punctured, forming a through-hole. The presence of a hole in the weld area drastically reduces the effective load-bearing cross-sectional area, making it the weakest point in the weld. Under stress, this area becomes highly concentrated, easily initiating cracks that propagate rapidly, leading to premature structural failure. More importantly, after burn-through, molten metal drips or sprays onto the tooling and fixtures below, causing damage. Furthermore, the dripping or spraying molten metal from the hole may pose a safety risk to operators.

[0005] Therefore, it is necessary to propose a welding robot with protective functions and its usage method to avoid the welding plate being burned through and to protect the safety of equipment and operators. This has become an important technical problem that urgently needs to be solved. Summary of the Invention

[0006] This application provides a welding robot with protective functions and its usage method, aiming to solve the problem in the prior art where the laser power density of laser deep penetration welding is extremely high, causing the molten pool metal to be completely vaporized or penetrated, forming a through hole.

[0007] To achieve the above objectives, this application proposes a welding robot with protective functions, including a frame, a laser welding head movably mounted on the frame, a support plate mounted on the frame, and two plates to be welded placed on the support plate. The robot also includes: a clamping assembly mounted on the support plate for fixing the two plates to be welded; silicone tape connecting the two plates; aluminum foil mounted on the silicone tape; a ceramic liner mounted on the aluminum foil; and a high-temperature resistant surface layer mounted on the ceramic liner.

[0008] In some embodiments, the system further includes: a microporous region, wherein a microporous region is provided on a carrier plate, and a plurality of micro-through holes are provided at intervals on the microporous region; a negative pressure box, wherein the negative pressure box is connected to the carrier plate; a negative pressure cavity, wherein a negative pressure cavity is provided inside the negative pressure box, and the microporous region is provided above the negative pressure cavity; and an external interface, wherein an external interface is provided on the negative pressure box.

[0009] In some embodiments, the device further includes: a conical hole, wherein the bottom of the negative pressure chamber is provided with a conical hole, and the bottom of the conical hole is connected to an external interface; a first flow equalization baffle, wherein the first flow equalization baffle is provided in the negative pressure chamber and is located above the conical hole; a second flow equalization baffle, wherein the second flow equalization baffle is provided in the negative pressure chamber and is located above the first flow equalization baffle; and a plurality of flow equalization holes, wherein a plurality of flow equalization holes are provided at intervals on the second flow equalization baffle.

[0010] In some embodiments, the device further includes an adsorber connected to an external interface. The adsorber includes: an adsorption box with connection ports at both ends, one connection port connecting to the external interface and the other connection port connecting to an air pump; a filter basket disposed inside the adsorption box; activated carbon disposed inside the filter basket; and an end cap disposed on the adsorption box.

[0011] In some embodiments, the system further includes: a plurality of irregularly shaped sealing rings, which are spaced apart between the support plate and the negative pressure box.

[0012] In some embodiments, the clamping assembly includes: a mounting bracket disposed on a support plate; a clamping drive disposed on the mounting bracket; and a pressure plate connected to the clamping drive, the pressure plate being used to clamp the material to be welded onto the support plate.

[0013] In some embodiments, the pressure plate further includes: an end fixing plate, wherein the end fixing plate is movably disposed at both ends of the pressure plate; an adjusting screw, wherein an adjusting screw is screwed to both ends of the pressure plate; a guide hole, wherein a guide hole is disposed at both ends of the pressure plate; and a first guide post, wherein the first guide post is disposed on the end fixing plate and is adapted to the guide hole.

[0014] In some embodiments, the device further includes: a longitudinal traverse drive, which is disposed on the frame; a longitudinal traverse frame, which is connected to the longitudinal traverse drive to drive the longitudinal traverse frame to reciprocate longitudinally on the frame; a transverse traverse drive, which is disposed on the longitudinal traverse frame; a transverse traverse frame, which is connected to the transverse traverse drive and drives the transverse traverse frame to reciprocate laterally on the longitudinal traverse frame; a vertical traverse drive, which is disposed on the transverse traverse frame; and a vertical traverse plate, which is connected to the vertical traverse drive and the laser welding head is mounted on the vertical traverse plate.

[0015] In some embodiments, the system further includes: rollers, with rollers provided on the longitudinal frame and rollers provided on the transverse frame.

[0016] Based on another objective of this application, this application also provides a method for using a welding robot with protective function. The method of using the welding robot is as described above, and includes the following steps: S1, cleaning the plates to be welded; S2, connecting aluminum foil and ceramic gasket to the two plates to be welded using silicone tape, and aligning the ceramic gasket with the weld seam on the two plates to be welded; S3, placing the two plates to be welded onto a support plate, and completing the welding of the two plates to be welded using a laser welding head; S4, after the weld seam cools, removing the ceramic gasket.

[0017] This application proposes a welding robot with protective functions, including a frame, a movable laser welding head mounted on the frame, a support plate on the frame, and two plates to be welded placed on the support plate. The robot also includes: a clamping assembly mounted on the support plate to fix the two plates; silicone tape connecting the two plates; aluminum foil mounted on the silicone tape; a ceramic gasket mounted on the aluminum foil; and a high-temperature resistant surface layer mounted on the ceramic gasket. During welding, the silicone tape connects the aluminum foil, ceramic gasket, and high-temperature resistant surface layer to the weld seam between the two plates. During laser welding using the laser welding head, the high-temperature resistant surface layer can withstand temperatures up to 2700℃, far exceeding the temperature the ceramic gasket can withstand. This directly resists the high-temperature erosion generated by the molten pool and the high-energy laser from the laser welding head, preventing burn-through and providing effective protection for the welding of the two plates. Furthermore, the use of ceramic backing allows for full penetration welds, significantly reducing total welding time and improving welding efficiency. Full penetration welds also fundamentally solve the problem of fatigue cracks caused by incomplete penetration, significantly improving the durability and safety of the structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural diagram of a welding robot with protective function according to an embodiment of this application; Figure 2 for Figure 1 Enlarged view of part A in the middle; Figure 3 for Figure 1 Enlarged view of part B in the middle; Figure 4 for Figure 1Enlarged view of a section in the middle C; Figure 5 This is a top view of a welding robot with protective functions according to an embodiment of this application; Figure 6 for Figure 5 Sectional view at point DD; Figure 7 for Figure 6 Enlarged view of a section of part F in the middle; Figure 8 for Figure 5 Sectional view at EE; Figure 9 This is a schematic diagram of the installation structure of the ceramic gasket in one embodiment of this application.

[0019] In the diagram: 1. Frame; 2. Roller; 3. Longitudinal movement frame; 4. Lateral movement drive; 5. Vertical movement drive; 6. Lateral movement frame; 7. Longitudinal movement drive; 8. Pressing drive; 9. Negative pressure box; 10. Adsorber; 10. End cap; 101. Filter basket; 102. Activated carbon; 103. Adsorption box; 104. External interface; 11. Mounting plate; 12. Pressure plate; 13. Bearing plate; 14. Micro-through hole; 15. Guide cylinder; 16. Second guide column; 17. Mounting bracket; 18. Coupling; 19. Connection. 20. Protrusion 21. Vertical moving plate 22. Horizontal moving screw 22. Laser welding head 23. End fixing plate 24. Longitudinal moving screw 25. First guide post 26. Connecting arm 27. Conical hole 28. First flow equalization baffle 29. Flow equalization hole 30. Second flow equalization baffle 31. Limiting platform 32. Special-shaped sealing ring 33. Plate to be welded 34. Silicone tape 35. Aluminum foil 36. Ceramic gasket 37. High temperature resistant surface layer 38. Adjusting screw 39. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Example 1 See Figure 1 , Figure 5 and Figure 9As shown, this application proposes a welding robot with protective functions, including a frame 1, a laser welding head 23 movably mounted on the frame 1, a support plate 14 mounted on the frame 1, two plates 34 to be welded placed on the support plate 14, and further including: a clamping assembly mounted on the support plate 14 for fixing the two plates 34 to be welded; silicone tape 35 for connecting the two plates 34 to be welded; aluminum foil 36 mounted on the silicone tape 35; a ceramic pad 37 mounted on the aluminum foil 36; and a high-temperature resistant surface layer 38 mounted on the ceramic pad 37.

[0022] The frame 1 is the structural foundation of the welding robot, and all other structures on the welding robot are directly or indirectly mounted to the frame 1. The frame 1 includes two bottom crossbars, two bottom longitudinal bars, and four connecting end plates. The connecting end plates are connected to the bottom crossbars and bottom longitudinal bars by screws to form a complete frame 1 structure.

[0023] The laser welding head 23 includes a laser input interface, a collimating lens module, a focusing lens module, a beam oscillation module, a protective lens module, a gas suction module, and a wire feeding module. The laser input interface connects to the laser transmission fiber, introducing the laser into the laser welding head 23. The collimating lens module converts the diverging laser beam output from the fiber into a parallel beam. The focusing lens module focuses the collimated parallel laser beam onto a very small point, forming a focal point with extremely high energy density. The beam oscillation module drives a reflector via two high-speed galvanometer motors, enabling the laser beam to oscillate in high-frequency, small-range circular, ∞-shaped, and straight-line trajectories during welding, widening the weld seam. The protective lens module protects the expensive internal collimating and focusing lenses from spatter, fumes, or other contaminants generated during welding. The wire feeding module feeds the welding wire, improving the weld seam formation performance. The laser welding head 23 is a mature prior art and is not the core inventive point of this application; therefore, its specific structure is not limited herein.

[0024] The core structure of this application consists of silicone tape 35, aluminum foil 36, ceramic gasket 37, and high-temperature resistant surface layer 38. Silicone tape 35 is used to connect aluminum foil 36, ceramic gasket 37, and high-temperature resistant surface layer 38 to two plates 34 to be welded. Aluminum foil 36 is connected to ceramic gasket 37 by high-temperature resistant pressure-sensitive adhesive. During the connection process, silicone tape 35, aluminum foil 36, and ceramic gasket 37 are stacked in sequence, and then the silicone tape 35, aluminum foil 36, and ceramic gasket 37 are connected into an integral structure by a lamination device. The ceramic backing 37 is made of silica-alumina-magnesium oxide powder, and the high-temperature resistant surface layer 38 is made of zirconium oxide powder. Specifically, zirconium oxide powder is carefully loaded onto the silica-alumina-magnesium oxide powder and pressed into a green blank by a dry press. The green blank is then co-fired at high temperature to form the ceramic backing 37 and the high-temperature resistant surface layer 38. The high-temperature resistant surface layer 38 can withstand a temperature of 2700℃, which is much higher than the temperature that the ceramic backing 37 can withstand. It can directly resist the high-temperature erosion generated by the molten pool and the high-energy laser of the laser welding head 23, avoid burn-through, and provide effective protection for the welding of the two plates 34 to be welded.

[0025] Furthermore, by introducing structures such as ceramic backing 37, the weld seam can achieve full penetration during the welding process, forming a full penetration weld. Full penetration welds allow for double-sided forming through single-sided welding, completely eliminating all back-side operations such as flipping, root cleaning, and sealing welding. Since laser welding is already extremely fast, combined with the aforementioned single-sided welding and double-sided forming characteristics, the total welding time can be significantly reduced, improving welding efficiency. Full penetration welds also fundamentally solve the fatigue cracking problem caused by incomplete penetration, significantly improving the durability and safety of the structure. In the welding process of bridge decks and ship decks, full penetration welds have effectively solved the fatigue cracking problem that has plagued the industry for many years.

[0026] Understandably, the support plate 14 is provided with transverse grooves to accommodate the ceramic gasket 37 and the aluminum foil 36, allowing the welding plate 34 to adhere to the support plate 14. During the welding process, the silicone tape 35 can withstand temperatures of 200℃ or even higher. The ceramic gasket 37 and the high-temperature resistant surface layer 38 have good heat insulation properties, which can prevent a large amount of heat from the molten pool from being transferred to the silicone tape 35. Furthermore, the aluminum foil 36 can reflect radiant heat, which can quickly disperse local heat and prevent the tape from overheating locally. The welding time at a single point on the weld is very short, resulting in the temperature of the silicone tape 35 often being below 200℃ during the welding process. This allows the silicone tape 35 to effectively fix the ceramic gasket 37 to the weld between the two plates 34 to be welded.

[0027] Specifically, during the welding process, silicone tape 35 is used to connect aluminum foil 36, ceramic backing 37, and high-temperature resistant surface layer 38 to the weld seam between the two plates 34 to be welded. During laser welding using the laser welding head 23, the high-temperature resistant surface layer 38 can withstand temperatures up to 2700℃, far exceeding the temperature that the ceramic backing 37 can withstand. It directly resists the high-temperature erosion generated by the molten pool and the high-energy laser of the laser welding head 23, preventing burn-through and providing effective protection for the welding of the two plates 34. Furthermore, the ceramic backing 37 allows for a full penetration weld, significantly reducing the total welding time and improving welding efficiency. The full penetration weld also fundamentally solves the fatigue cracking problem caused by incomplete penetration, significantly improving the durability and safety of the structure.

[0028] See Figure 1 , Figure 5 , Figure 6 and Figure 8 As shown, in some embodiments, the system further includes: a microporous region, wherein a microporous region is provided on the support plate 14, and a plurality of micro-through holes 15 are spaced apart on the microporous region; a negative pressure box 9, which is connected to the support plate 14; the negative pressure box 9 is installed on the support plate 14 by bolts and locking nuts; a negative pressure cavity, wherein a negative pressure cavity is provided inside the negative pressure box 9, and the microporous region is located above the negative pressure cavity; and an external interface 11, wherein an external interface 11 is provided on the negative pressure box 9. The negative pressure cavity and the microporous region enable the micro-through holes 15 to generate suction, adsorbing the plate 34 to be welded onto the surface of the support plate 14. By using atmospheric pressure to fix the plate 34 to be welded, a uniform adsorption force can be provided to the entire bottom surface of the plate 34 to be welded, which helps to suppress the external deformation of the plate 34 to be welded caused by welding thermal stress. Because the clamping assembly can only fix the end of the plate 34 to be welded, and during the welding process, the heating of the laser welding head 23 causes a huge temperature gradient on the plate 34 to be welded, resulting in thermal stress. This thermal stress causes micro-deformation in the portion of the plate 34 away from the clamping assembly. This micro-deformation can tear the silicone tape 35, causing the ceramic gasket 37 to shift. Consequently, the ceramic gasket 37 cannot effectively seal the weld, leading to leakage of molten metal in the weld pool and potentially causing burn-through and other safety accidents. The microporous region uses atmospheric pressure to fix the plate 34 to be welded, providing uniform adsorption force to the entire bottom surface of the plate 34 and preventing deformation under thermal stress. The external interface 11 is used to connect an air pump to maintain the negative pressure state within the negative pressure chamber.

[0029] Understandably, the micro-holes 15 and the negative pressure chamber, which are not blocked by the plate material 34 to be welded, can still form a downward airflow. This airflow can effectively cool the plate material 34 to be welded, reduce the thermal stress on the plate material 34 to be welded, and further prevent the plate material 34 to be welded from deforming. In addition, the metal vapors and fumes generated during the welding process will also move downward under the guidance of the above-mentioned airflow, preventing the metal vapors and fumes from harming the relevant personnel and providing a certain degree of protection for the relevant personnel.

[0030] See Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, it further includes: a conical hole 28, the bottom of the negative pressure box 9 is provided with a conical hole 28, the bottom of the conical hole 28 is connected to the external interface 11; the bottom of the negative pressure box 9 is provided with a gas flow channel, one end of the gas flow channel is connected to the external interface 11, the other end of the gas flow channel is connected to the conical hole 28, the external interface 11 is screwed to the gas flow channel, and a sealing gasket is provided between the external interface 11 and the gas flow channel. A first flow equalization baffle 29 is disposed in the negative pressure chamber 9, above the conical hole 28. Located between the negative pressure chamber and the conical hole 28, the first flow equalization baffle 29 evenly disperses the airflow generated by the air pump, ensuring uniform airflow within the negative pressure chamber and preventing excessively high local airflow velocities while other areas experience almost no airflow. This provides uniform adsorption force to the entire bottom surface of the plate to be welded 34. A second flow equalization baffle 31 is disposed in the negative pressure chamber 9, above the first flow equalization baffle 29. Multiple flow equalization holes 30 are spaced apart on the second flow equalization baffle 31. The second flow equalization baffle 31 and the flow equalization holes 30 further disperse the airflow generated by the air pump. Both the first flow equalization baffle 29 and the second flow equalization baffle 31 are made of high-temperature resistant stainless steel, capable of withstanding the high temperatures and corrosion of the welding environment.

[0031] Understandably, the space within the conical orifice 28 forms a first flow equalization space, where the airflow is initially dispersed during its flow. A second flow equalization space is formed between the conical orifice 28 and the first flow equalization baffle 29, where the airflow is further dispersed during its flow. The airflow exiting the second flow equalization space is initially dispersed by the first flow equalization baffle 29. A third flow equalization space is formed between the first flow equalization baffle 29 and the second flow equalization baffle 31, where the airflow initially dispersed by the first flow equalization baffle 29 is further dispersed. After exiting the third flow equalization space, the airflow is further dispersed by the second flow equalization baffle 31 and the flow equalization orifice 30. A fourth flow equalization space is formed between the second flow equalization baffle 31 and the supporting plate 14, where the airflow, after being further dispersed by the second flow equalization baffle 31 and the flow equalization orifice 30, flows into the fourth flow equalization space and is uniformly dispersed. Through the above-mentioned dispersion and scattering operations, the airflow in the negative pressure chamber is made more uniform, thereby providing uniform suction for multiple micro-holes 15, and achieving the purpose of providing uniform adsorption force for the entire bottom surface of the plate 34 to be welded.

[0032] Specifically, connecting arms 27 are evenly spaced along the circumference of the first flow equalization baffle 29. A limiting platform 32 is provided inside the negative pressure box 9 to limit the vertical position of the first flow equalization baffle 29. The limiting platform 32 restricts the position of the first flow equalization baffle 29 to determine the height of the second flow equalization space, ensuring that its airflow dispersion effect meets expectations. The connecting arms 27 are connected to the negative pressure box 9 by screws. The top of the connecting arms 27 abuts against the second flow equalization baffle 31 to limit the vertical position of the second flow equalization baffle 31, thereby locking the height of the third and fourth flow equalization spaces and ensuring that their airflow dispersion effect meets expectations.

[0033] Preferably, the bottom surface of the first flow equalization baffle 29 is an arc-shaped surface. The arc-shaped surface can guide the airflow, gently disperse the airflow, reduce the kinetic energy loss of the airflow, and enhance the adsorption force at the micro-hole 15.

[0034] See Figure 1 , Figure 5 , Figure 6 and Figure 8As shown, in some embodiments, an adsorber 10 is also included. The adsorber 10 is connected to the external interface 11. Since the gas adsorbed from the negative pressure chamber contains a large amount of welding fumes, and these fumes, when discharged with the air pump, will not only pollute the environment but also damage the air pump and reduce its service life, the adsorber 10 is used to adsorb the fumes to avoid polluting the environment and damaging the air pump. The adsorber 10 includes: an adsorption box 104, with connection ports at both ends of the adsorption box 104. One connection port is connected to the external interface 11, and the other connection port is connected to the air pump. The adsorption box 104 also has a cylindrical adsorption chamber, with two connection ports connected to both ends of the adsorption chamber. A filter basket 102 is installed inside the adsorption box 104. A limiting ring for the filter basket 102 is installed inside the adsorption chamber. The connection point between the filter basket 102 and the adsorption chamber is significantly lower than the limiting ring, ensuring that gas flowing in from the connection point must pass through the filter basket 102 before exiting from the other connection point. Activated carbon 103 is installed inside the filter basket 102; the activated carbon 103 is used to adsorb dust and other harmful substances in the airflow. An end cap 101 is installed on the adsorption box 104. The end cap 101 is connected to the auxiliary box via connecting bolts and locking nuts. The adsorption chamber can be opened through the end cap 101 to remove the filter basket 102 and the activated carbon 103 within it. The activated carbon 103 can be replaced after desorption; the activated carbon 103 adsorbed with dust can be recycled after desorption. A lifting handle is provided at the end of the end cap 101 for easy lifting and lowering by relevant personnel.

[0035] See Figure 1 , Figure 5 , Figure 6 and Figure 8 As shown, in some embodiments, the system further includes a plurality of irregularly shaped sealing rings 33, which are spaced apart between the support plate 14 and the negative pressure chamber 9. The irregularly shaped sealing rings 33 are used to improve the sealing performance between the negative pressure chamber 9 and the support plate 14, preventing negative pressure in the negative pressure chamber from leaking through the gap between the support plate 14 and the negative pressure chamber 9. The plurality of irregularly shaped sealing rings 33 effectively lengthen the sealing path, further significantly improving the sealing performance between the negative pressure chamber 9 and the support plate 14.

[0036] In this embodiment, mounting plates 12 are provided on both sides of the negative pressure box 9, and threaded holes are provided on the mounting plates 12 to form a connection between the negative pressure box 9 and the external structure.

[0037] See Figure 1 , Figure 2 , Figure 5 and Figure 8As shown, in some embodiments, the clamping assembly includes: a mounting bracket 18 disposed on a support plate 14; the mounting bracket 18 is fixed to the support plate 14 by screws; a clamping drive 8 is disposed on the mounting bracket 18; the clamping drive 8 is a cylinder, the clamping drive 8 is fixed to the mounting bracket 18 by screws, a piston rod is movably disposed within the clamping drive 8; and a pressure plate 13 is connected to the clamping drive 8, the pressure plate 13 being used to clamp the plate 34 to be welded onto the support plate 14. A connecting block is screwed to the end of the piston rod, the connecting block being connected to the pressure plate 13 by screws to drive the pressure plate 13 to move, so that the pressure plate 13 can clamp the plate 34 to be welded onto the support plate 14.

[0038] In this embodiment, a guide cylinder 16 is provided on the mounting bracket 18, and a second guide post 17 is provided on the pressure plate 13. The second guide post 17 is adapted to the guide cylinder 16. Through the cooperation of the guide cylinder 16 and the second guide post 17, the stability of the movement of the pressure plate 13 is improved. Two clamping components are provided on the bearing plate 14. The two clamping components are used to clamp the two plates 34 to be welded.

[0039] See Figure 1 , Figure 4 , Figure 5 and Figure 8 As shown, in some embodiments, the plate further includes: an end fixing plate 24, with both ends of the pressure plate 13 movably mounted on the end fixing plate 24; the end fixing plate 24 is used to abut against the side of the plate to be welded 34, further improving the stability of the plate to be welded 34 during the welding process. An adjusting screw 39 is screwed to both ends of the pressure plate 13; rotating the adjusting screw 39 pushes the end fixing plate 24 to press against the side of the plate to be welded 34. Guide holes are provided at both ends of the pressure plate 13. A first guide post 26 is disposed on the end fixing plate 24 and is adapted to the guide hole. The cooperation of the first guide post 26 and the guide hole restricts the movement direction of the end fixing plate 24 and improves the stability of the movement of the end fixing plate 24.

[0040] Preferably, a spring is provided between the end fixing plate 24 and the pressure plate 13 so that the end fixing plate 24 tends to move closer to the pressure plate 13, or the end fixing plate 24 is manually moved to both ends of the pressure plate 13 each time.

[0041] See Figure 1 , Figure 5 , Figure 6 and Figure 8As shown, in some embodiments, it further includes: a longitudinal drive 7, which is disposed on the frame 1; the longitudinal drive 7 is mounted on the connecting end plate by screws, the longitudinal drive 7 is a motor, the longitudinal drive 7 is provided with a longitudinal output shaft, the longitudinal output shaft is connected to a longitudinal screw 25 through a coupling 19, and the other end of the longitudinal screw 25 is rotatably disposed on another connecting end plate through a bearing. A longitudinal frame 3 is connected to the longitudinal drive 7 to drive the longitudinal frame 3 to reciprocate longitudinally on the frame 1; the longitudinal frame 3 includes a longitudinal beam and longitudinal end plates disposed at both ends of the longitudinal beam, the longitudinal end plates including two plates, the two plates being disposed on both sides of the bottom longitudinal rod, the two plates of the longitudinal end plate being connected into a whole by a screw and a locking nut, the longitudinal screw 25 being screwed with a longitudinal nut block, the longitudinal nut block being connected to the two plates of the longitudinal end plate by screws, the longitudinal drive 7 rotating to drive the longitudinal nut block to reciprocate longitudinally, thereby driving the longitudinal frame 3 to reciprocate longitudinally. A transverse drive 4 is installed on the longitudinal frame 3. The transverse drive 4 is installed on a plate relatively outer of the longitudinal end plate by screws. The transverse drive 4 is a motor. The transverse drive 4 is equipped with a transverse output shaft. The transverse output shaft is connected to a transverse screw 22 through a coupling 19. The other end of the transverse screw 22 is rotatably connected to a plate of another longitudinal end plate through a bearing. A transverse frame 6 is connected to a transverse drive 4, which drives the transverse frame 6 to reciprocate laterally on the longitudinal frame 3. The transverse frame 6 includes a transverse connecting plate and a body. The transverse connecting plate includes two plates disposed on both sides of the longitudinal beam. The two plates of the transverse connecting plate can be connected into a whole by a screw and a locking nut. A transverse screw 22 is screwed with a transverse nut block, which is connected to a plate of the transverse connecting plate by a screw. The transverse drive 4 drives the transverse screw 22 to rotate, thereby driving the transverse nut block to reciprocate laterally, and driving the transverse frame 6 to reciprocate laterally. A vertical movement drive 5 is mounted on a horizontal movement frame 6. The vertical movement drive 5 is a motor. Its vertical movement output shaft is connected to a vertical movement screw via a coupling 19. The other end of the vertical movement screw is rotatably mounted on the main body. A vertical movement nut block is screwed onto the vertical movement screw. A vertical movement plate 21 is connected to the vertical movement drive 5. A laser welding head 23 is mounted on the vertical movement plate 21. A connecting protrusion 20 is provided on the vertical movement plate 21, and the connecting protrusion 20 is connected to the vertical movement nut block via screws.

[0042] It is understood that this embodiment provides a three-axis moving structure so that the laser welding head 23 can smoothly weld the plate 34 to be welded along the weld seam. The three-axis moving structure is a mature existing technology, and other three-axis moving structures can also be used. No specific limitation is made here.

[0043] See Figure 1 , Figure 3 and Figure 8As shown, in some embodiments, the system further includes rollers 2, which are mounted on the longitudinal transfer frame 3 and the transverse transfer frame 6. Each roller 2 has a roller shaft; the two ends of a portion of the roller shaft are connected to the two plates of the longitudinal transfer end plate, and the two ends of another portion are connected to the two plates of the transverse transfer connecting plate. The rollers 2 reduce the difficulty of moving the longitudinal transfer frame 3 and the transverse transfer frame 6.

[0044] Example 2 In this embodiment, the parts that are the same as in Embodiment 1 are given the same reference numerals, and the same text descriptions are omitted.

[0045] This embodiment discloses a method for using a welding robot with protective functions. The method of using the welding robot according to the embodiment includes the following steps: S1. Clean the plate to be welded; use an angle grinder, wire brush or grinding wheel to thoroughly remove all impurities such as rust, oil, moisture, and paint from the weld and at least 20mm on both sides until the metal luster is exposed.

[0046] S2. Connect the aluminum foil 36 and ceramic backing 37 to the two plates to be welded using silicone tape 35, and align the ceramic backing 37 with the weld seams on the two plates 34 to be welded. Before bonding, wipe the area on the back of the plates 34 to be welded with acetone or alcohol to ensure that it is free of oil and dust, so as to ensure that the silicone tape 35 is firmly bonded.

[0047] S3. Place the two plates 34 to be welded onto the support plate 14, and complete the welding of the two plates 34 by means of the laser welding head 23; the laser welding head 23 emits a high-energy laser and moves slowly along the weld seam to complete the welding of the two plates 34 to be welded.

[0048] S4. After the weld has cooled, remove the ceramic backing 37. When removing the ceramic backing 37, gently tap it with a hammer or similar tool; it will then detach on its own. After removing the ceramic backing 37, visually inspect the weld. An ideal back weld should be uniformly formed, smooth, and full, without undercut, depressions, or excessive excess weld height. Perform ultrasonic testing, radiographic testing, or magnetic particle testing on the weld to check for internal defects such as porosity, slag inclusions, and incomplete fusion. Finally, clean the weld area and the spatter and residual adhesive from the plate 34 to be welded.

[0049] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A welding robot with protective function, comprising a frame (1), wherein a laser welding head (23) is movably disposed on the frame (1), and a support plate (14) is disposed on the frame (1), wherein two plates (34) to be welded are placed on the support plate (14), characterized in that, Also includes: A clamping assembly is provided on the bearing plate (14) and is used to fix the two plates (34) to be welded. Silicone tape (35) is used to connect the two plates (34) to be welded. Aluminum foil (36), said aluminum foil (36) is disposed on the silicone tape (35); A ceramic liner (37) is disposed on the aluminum foil (36). High-temperature resistant surface layer (38) is provided on the ceramic gasket (37).

2. The welding robot with protective function according to claim 1, characterized in that, Also includes: Microporous area, the microporous area is provided on the support plate (14), and a plurality of micro-through holes (15) are provided at intervals on the microporous area. Negative pressure box (9), the negative pressure box (9) is connected to the bearing plate (14); The negative pressure chamber is provided inside the negative pressure box (9), and the microporous area is located above the negative pressure chamber; External interface (11) is provided on the negative pressure box (9).

3. A welding robot with protective function according to claim 2, characterized in that, Also includes: A conical hole (28) is provided at the bottom of the negative pressure box (9), and the bottom of the conical hole (28) is connected to the external interface (11). The first flow equalization baffle (29) is disposed in the negative pressure box (9) and is located above the conical hole (28); The second flow equalization baffle (31) is disposed in the negative pressure box (9) and is located above the first flow equalization baffle (29); Multiple flow equalization holes (30) are provided on the second flow equalization baffle (31) at intervals.

4. A welding robot with protective function according to claim 2, characterized in that, It also includes an adsorber (10), which is connected to the external interface (11), and the adsorber (10) includes: The adsorption box (104) has connection ports at both ends. One end of the connection port is connected to the external interface (11), and the other end of the connection port is connected to the air pump. The filter basket (102) is provided inside the adsorption box (104). Activated carbon (103), the activated carbon (103) is placed inside the filter basket (102); End cap (101), the end cap (101) is provided on the adsorption box (104).

5. A welding robot with protective function according to claim 2, characterized in that, Also includes: Multiple irregular sealing rings (33) are spaced apart between the bearing plate (14) and the negative pressure box (9).

6. A welding robot with protective function according to claim 1, characterized in that, The clamping assembly includes: Mounting bracket (18), which is disposed on the support plate (14). A clamping drive (8) is provided on the mounting bracket (18); A pressure plate (13) is connected to the pressing drive (8) and is used to press the plate to be welded (34) onto the support plate (14).

7. A welding robot with protective function according to claim 6, characterized in that, Also includes: End fixing plate (24), both ends of the pressure plate (13) are movably provided with the end fixing plate (24); Adjusting screw (39), both ends of the pressure plate (13) are screwed to the adjusting screw (39); Guide holes are provided at both ends of the pressure plate (13); The first guide post (26) is disposed on the end fixing plate (24) and is adapted to the guide hole.

8. A welding robot with protective function according to claim 1, characterized in that, Also includes: A longitudinal traverse drive (7) is disposed on the frame (1); The longitudinal transfer frame (3) is connected to the longitudinal transfer drive (7) to drive the longitudinal transfer frame (3) to reciprocate longitudinally on the frame (1); The transverse drive (4) is provided on the longitudinal frame (3); A transverse frame (6) is connected to a transverse drive (4), which drives the transverse frame (6) to reciprocate along the transverse direction on the longitudinal frame (3); Vertical movement drive (5), the vertical movement drive (5) is disposed on the horizontal movement frame (6); A vertical moving plate (21) is connected to the vertical moving drive (5), and the laser welding head (23) is mounted on the vertical moving plate (21).

9. A welding robot with protective function according to claim 8, characterized in that, Also includes: Roller (2), the roller (2) is provided on the longitudinal frame (3), and the roller (2) is provided on the transverse frame (6).

10. A method of using a welding robot with protective functions, characterized in that, The method of use is the method of using the welding robot according to any one of claims 1-9, and the method of use includes the following steps: S1. Clean the plate to be welded (34). S2. Connect the aluminum foil (36) and ceramic gasket (37) to the two plates (34) to be welded using silicone tape (35), and align the ceramic gasket (37) with the weld seam on the two plates (34). S3. Place the two plates (34) to be welded onto the support plate (14) and complete the welding of the two plates (34) by means of the laser welding head (23); S4. After the weld has cooled, remove the ceramic gasket (37).

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