A real-time temperature control and shape control device for thick plate laser welding

Abstract

The present invention relates to the technical field of laser welding, and specifically relates to a real-time temperature control and shape control device for laser welding of thick plates, including a base. A plurality of groups of support rods are evenly and fixedly connected to the top of the base, and the top of each group of support rods is fixedly connected to a top plate. A cooling plate is fixedly connected to the top of the base, and two symmetrically arranged thick plates are placed on the top of the cooling plate. A cooling mechanism is arranged inside the cooling plate; the cooling mechanism includes a circulation pipe. When the thick plate generates heat during the welding process, the temperature of the thick plate is transmitted to the airbag through the heat conduction rod by the heat conduction plate. When the thick plate reaches a certain temperature, the expansion of the airbag causes the two first contact blocks to come into contact and compress the second spring. At this time, the water pump pumps the cold water in the water storage tank into the water storage tank through the circulation pipe, so that the cooling plate can cool the thick plate, effectively controlling its temperature and preventing it from deforming.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and particularly to a real-time temperature control and shape control device for laser welding of thick plates. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a laser beam with a high energy density as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process belongs to the heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses inward through heat conduction. By controlling parameters such as the width, energy, peak power, and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool.

[0003] During the laser welding process, heat will conduct and diffuse on the workpiece. Moreover, during the welding process of thick plates, heat accumulation is relatively serious, which extremely easily causes the thick plates to deform, and the heat dissipation takes a long time, which extremely easily causes defects in the thick plates, resulting in a reduction in the quality of the thick plates and an unsatisfactory welding effect, thus causing unnecessary losses.

[0004] Therefore, a real-time temperature control and shape control device for laser welding of thick plates is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a real-time temperature control and shape control device for laser welding of thick plates. When the thick plate generates heat during the welding process, the temperature of the thick plate will be transferred to the inside of the airbag through the heat conduction rod by the heat conduction plate. When the thick plate reaches a certain temperature, the expansion of the airbag will cause the two first contact blocks to come into contact and compress the second spring. At this time, the water pump pumps the cold water in the water storage tank into the water storage tank through the circulation pipe, so as to realize the cooling of the thick plate by the cooling plate, effectively control its temperature and prevent it from deforming.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A real-time temperature control and shape control device for laser welding of thick plates, including a base. The top of the base is uniformly and fixedly connected with multiple groups of support rods. The top of each group of support rods is fixedly connected with a top plate. The top of the base is fixedly connected with a cooling plate. Two symmetrically arranged thick plates are placed on the top of the cooling plate. A cooling mechanism is arranged inside the cooling plate;

[0008] The cooling mechanism includes a circulation pipe. The circulation pipe is sleeved inside the cooling plate. The bottom of the base is fixedly connected with a water storage tank. Both ends of the circulation pipe penetrate through the base and the water storage tank. A water pump is installed on the circulation pipe. The water pump is installed on one side of the bottom of the base. Multiple groups of heat dissipation fins are uniformly installed at the bottom of the water storage tank. A thermal expansion mechanism is arranged inside the cooling plate.

[0009] When the water pump is turned on, the water pump pumps the cold water in the water storage tank into the circulation pipe and discharges it into the water storage tank, which can cool the cooling plate, thereby cooling the thick plate.

[0010] Preferably, the thermal expansion mechanism includes a slotted groove, an airbag is installed at the top of the inner cavity of the slotted groove, a heat conduction plate is sleeved at the center of the top of the base, heat conduction rods are uniformly fixedly connected to the bottom of the heat conduction plate, the bottom ends of each group of heat conduction rods penetrate through the cooling plate and the airbag, a pressing plate is in contact with the bottom of the airbag, the pressing plate is slidably installed in the inner cavity of the slotted groove, a first spring is installed between the pressing plate and the bottom of the inner cavity of the slotted groove, and a triggering mechanism is arranged on one side of the first spring.

[0011] When the thick plate generates heat during welding, the temperature of the thick plate will be transmitted to the airbag through the heat conduction rods by the heat conduction plate. Since the gas in the airbag is ammonia and the expansion coefficient of ammonia is relatively large, at this time, the airbag can expand to drive the pressing plate to move downward and compress the first spring, achieving the purpose of expansion and pushing.

[0012] Preferably, the triggering mechanism includes a second spring, the second spring is installed at the bottom of the inner cavity of the slotted groove, first contact blocks are installed at the top of the second spring and the bottom of the pressing plate respectively, the two first contact blocks are electrically connected to the water pump together, through grooves are uniformly formed in the cooling plate, and detection mechanisms are arranged in each group of through grooves.

[0013] When the thick plate reaches a certain heat, the expansion of the airbag will cause the two first contact blocks to come into contact with each other and compress the second spring. At this time, the convex block will be controlled to open, achieving the purpose of triggering.

[0014] Preferably, the detection mechanism includes a convex block, each group of convex blocks is slidably installed in the inner cavity of the through groove, a third spring is installed at the bottom of each group of convex blocks, the bottom ends of each group of third springs are fixedly connected to the inner cavity of the through groove, fourth springs are installed on the inner walls of each group of through grooves, second contact blocks are installed at the bottom of each group of convex blocks and the top ends of the adjacent fourth springs respectively, connecting plates are fixedly connected to one side of the bottom of each group of convex blocks, third contact blocks are installed on one side of the bottom of each group of connecting plates and the inner walls of the adjacent through grooves respectively, lamps are installed on one side of the bottom of the inner cavity of each group of through grooves, and a sliding mechanism is arranged at the bottom of the base.

[0015] When the thick plate is being welded, serious heat accumulation may cause deformation. At this time, the third spring is in a slightly compressed state, and the fourth spring is in a normal state. When the thick plate is deformed, there will be concave and convex situations. When the thick plate bulges, it will drive the convex block to move downward and squeeze the third spring. At this time, the two second contact blocks can be made to contact each other. If the thick plate continues to bulge, the two second contact blocks will squeeze the fourth spring and the third spring, and at this time, the lamp will be turned on. When the thick plate is sunken, under the action of the third spring, the extension will drive the convex block to move upward, and the convex block can drive the two third contact blocks to contact each other through the connecting plate. At this time, the lamp will be turned on to achieve the purpose of detection and give a bright light reminder to the staff. According to the situation of the lamp, it can be known whether the horizontal position of the thick plate is deformed, and the surface of the thick plate can also be detected for defects.

[0016] Preferably, the sliding mechanism includes vertical plates. There are two groups of vertical plates, and both of the two vertical plates are fixedly connected to the top plate. A push plate is slidably connected between the two vertical plates. A laser is installed on the push plate. A cylinder is installed on the top of the base. The output end of the cylinder is fixedly connected to the push plate, and a pushing mechanism is arranged at the bottom of the push plate.

[0017] By the extension and contraction of the output end of the cylinder, the laser can be driven by the push plate to move downward and upward.

[0018] Preferably, the pushing mechanism includes push rods. There are two groups of push rods, and both of the two push rods are fixedly connected to the push plate. The bottoms of the two push rods are both slidably connected to sliding rods. Movable plates are slidably connected to the rod walls of the two sliding rods. Fourth springs are sleeved on the rod walls of the two sliding rods, and both ends of the two fourth springs are fixedly connected to the adjacent push rods and the movable plates. The bottoms of the two sliding rods are both fixedly connected to a shielding mechanism.

[0019] When the push plate moves downward, it will drive the movable plate to move downward through the fifth spring. The downward movement of the movable plate is convenient for driving the shielding mechanism to be in a vertical state later, so as to shield the debris sputtered during subsequent welding.

[0020] Preferably, the shielding mechanism includes bottom plates. Both of the two bottom plates are fixedly connected to the bottom ends of the adjacent sliding rods. Baffles are rotatably connected to the tops of the two bottom plates. The opposite ends of the two baffles are movably connected to connecting rods, and the other ends of the two connecting rods are movably connected to the adjacent movable plates. Linkage mechanisms are movably connected to the opposite sides of the two bottom plates.

[0021] Under the force supported by the connecting rod, when the push plate moves downward, it will drive the movable plate to move downward through the fifth spring. The movement of the movable plate will drive the baffle to deflect through the connecting rod. When the movable plate moves to the top of the bottom plate, the baffle can be in a vertical state to achieve the purpose of blocking. When the push rod pushes the movable plate to contact the top of the bottom plate through the fifth spring, the baffle can be in a vertical state. If the push plate continues to move downward, it will push the bottom plate to move downward through the fifth spring to the top of the thick plate, and the top of the thick plate can be squeezed and fixed to prevent the thick plate from shifting during the welding process.

[0022] Through the setting of the fourth spring, when the push plate drives the laser to continue to move downward for welding later, it will squeeze the fourth spring. When it is about to contact the thick plate, the slight up and down movement during welding will not affect the shielding mechanism and the linkage mechanism.

[0023] Preferably, the linkage mechanism includes a connecting rod. Two symmetrically arranged mounting plates are fixedly connected to the top of the cooling plate. Two first toothed plates are slidably connected to the two mounting plates respectively. The relative ends of the two first toothed plates are movably connected to the adjacent connecting rod. Two gears are rotatably connected to the opposite sides of the two mounting plates respectively. Elastic clamping mechanisms are arranged at the bottoms of the two gears.

[0024] When the bottom plate moves downward, the bottom plate drives the first toothed plate to move outward through the connecting rod, and the first toothed plate drives the second toothed plate to move inward through the gear.

[0025] Preferably, the elastic clamping mechanism includes second toothed plates. The two second toothed plates are slidably connected to the adjacent mounting plates respectively. The two gears are meshed with the adjacent first toothed plates and the second toothed plates respectively. Two clamping plates are arranged at the relative ends of the two second toothed plates respectively. The adjacent two clamping plates are fixedly connected through a fifth spring. The two second toothed plates are fixedly connected to the adjacent clamping plates respectively.

[0026] The inward movement of the two second toothed plates will drive the clamping plates to squeeze the side wall of the thick plate. Through the setting of the fifth spring, the movement distance of the second toothed plate will not be restricted, and the purpose of clamping can be achieved to prevent the thick plate from shifting during the welding process.

[0027] Preferably, the adjacent two second contact blocks and the adjacent two third contact blocks are commonly electrically connected to the adjacent lamp.

[0028] When the two second contact blocks contact or the third contact blocks contact, the lamp will be turned on and lit.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. When the thick plate generates heat during the welding process, the temperature of the thick plate will be transmitted to the inside of the airbag through the heat conduction rod by the heat conduction plate. At this time, the airbag can expand to drive the pressing plate to move downward and compress the first spring. When the thick plate reaches a certain temperature, the expansion of the airbag will cause the two first contact blocks to come into contact and compress the second spring. At this time, the water pump will be controlled to start. The water pump will pump the cold water in the water storage tank into the water storage tank through the circulation pipe, which can cool the cooling plate and thus cool the thick plate.

[0031] 2. When the thick plate is being welded, serious heat accumulation may cause deformation. When the thick plate is deformed, there will be concave and convex situations. When the thick plate bulges, it will drive the convex block to move downward and compress the third spring. At this time, the two second contact blocks can come into contact, and the lamp will be turned on. When the thick plate is concave, under the action of the third spring, the convex block will be driven to move upward, and the convex block can drive the two third contact blocks to come into contact through the connecting plate. At this time, the lamp will be turned on to achieve the purpose of detection. According to the situation of the lamp, it can be known whether the thick plate is deformed in the horizontal position, and whether there are defects on the surface of the thick plate can also be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall cross-sectional view of the present invention;

[0033] Figure 2 is of the present invention Figure 1 the enlarged view of the structure of part A in;

[0034] Figure 3 is of the present invention Figure 1 the enlarged view of the structure of part B in;

[0035] Figure 4 is of the present invention Figure 1 the enlarged view of the structure of part C in;

[0036] Figure 5 is of the present invention Figure 1 another state schematic diagram;

[0037] Figure 6 is the front view of the convex block of the present invention.

[0038] In the figure: 1, base; 2, support rod; 3, top plate; 4, vertical plate; 5, push plate; 6, laser; 7, cylinder; 8, cooling plate; 9, thick plate; 10, slot; 11, heat conducting plate; 12, airbag; 13, heat conducting rod; 14, pressing plate; 15, first spring; 16, second spring; 17, first contact block; 18, circulation pipe; 19, through slot; 20, convex block; 21, second contact block; 22, connecting plate; 23, third contact block; 24, lamp; 25, third spring; 26, push rod; 27, sliding rod; 28, movable plate; 29, fifth spring; 30, bottom plate; 31, connecting rod; 32, mounting plate; 33, first toothed plate; 34, connecting rod; 35, gear; 36, second toothed plate; 37, clamping plate; 38, sixth spring; 39, baffle; 40, water storage tank; 41, water pump; 42, fourth spring. Detailed implementation manner

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] The embodiments of the present invention provide a device to solve the technical problems that: during the laser welding process, heat will conduct and diffuse on the workpiece, and heat accumulation is relatively serious during the welding of thick plates, which is extremely likely to cause the thick plates to deform, and the heat dissipation takes a long time, which is extremely likely to cause defects in the thick plates, resulting in a reduction in the quality of the thick plates, and the welding effect is not ideal enough, thus causing unnecessary losses.

[0041] The technical solutions in the embodiments of the present invention to solve the above technical problems are generally as follows: when the thick plate generates heat during the welding process, the trigger mechanism is opened through the thermal expansion mechanism, and then the cooling mechanism is controlled to cool the thick plate. Through the detection mechanism, the deformation of the thick plate with serious heat accumulation can be detected, and then the staff can be reminded. Compared with the existing ones, it can effectively cool the thick plate automatically and can detect the surface of the thick plate at all times. Once a problem occurs, the lamp will light up to remind.

[0042] To better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the accompanying drawings of the specification and specific implementation manners.

[0043] Please refer to Figures 1 to 6 , the present invention provides a real-time temperature control and shape control device for thick plate laser welding, and the technical solution is as follows:

[0044] A real-time temperature control and shape control device for thick plate laser welding, comprising a base 1. Multiple groups of support rods 2 are uniformly and fixedly connected to the top of the base 1. The top of each group of support rods 2 is fixedly connected to a top plate 3. A cooling plate 8 is fixedly connected to the top of the base 1. Two symmetrically arranged thick plates 9 are placed on the top of the cooling plate 8. A cooling mechanism is arranged in the cooling plate 8;

[0045] The cooling mechanism includes a circulation pipe 18. The circulation pipe 18 is sleeved inside the cooling plate 8. A water storage tank 40 is fixedly connected to the bottom of the base 1. Both ends of the circulation pipe 18 penetrate through the base 1 and the water storage tank 40. A water pump 41 is installed on the circulation pipe 18. The water pump 41 is installed on one side of the bottom of the base 1. Multiple groups of heat dissipation fins are uniformly installed at the bottom of the water storage tank 40. A thermal expansion mechanism is arranged in the cooling plate 8.

[0046] When the water pump 41 is turned on, the water pump 41 pumps the cold water in the water storage tank 40 into the circulation pipe 18 and discharges it into the water storage tank 40, so as to cool the cooling plate 8, thereby cooling the thick plate 9.

[0047] As an implementation mode of the present invention, referring to Figure 1 、 2 and 5, the thermal expansion mechanism includes a slot 10. An airbag 12 is installed at the top of the inner cavity of the slot 10. The gas in the airbag 12 is ammonia. A heat conduction plate 11 is sleeved at the center of the top of the base 1. Heat conduction rods 13 are uniformly and fixedly connected to the bottom of the heat conduction plate 11. The bottom ends of each group of heat conduction rods 13 penetrate through the cooling plate 8 and the airbag 12. A pressing plate 14 is in contact with the bottom of the airbag 12. The pressing plate 14 is slidably installed in the inner cavity of the slot 10. A first spring 15 is installed between the pressing plate 14 and the bottom of the inner cavity of the slot 10. A trigger mechanism is arranged on one side of the first spring 15.

[0048] When the thick plate 9 generates heat during welding, the temperature of the thick plate 9 is transmitted to the inside of the airbag 12 through the heat conduction rod 13 through the heat conduction plate 11. Since the gas in the airbag 12 is set as ammonia and the expansion coefficient of ammonia is relatively large, at this time, the airbag 12 can be expanded to drive the pressing plate 14 to move downward and compress the first spring 15, achieving the purpose of expansion and pushing.

[0049] As an implementation mode of the present invention, referring to Figure 1 and 2 , the trigger mechanism includes a second spring 16. The second spring 16 is installed at the bottom of the inner cavity of the slot 10. First contact blocks 17 are installed at the top of the second spring 16 and the bottom of the pressing plate 14. The two first contact blocks 17 are jointly electrically connected to the water pump 41. Through grooves 19 are uniformly arranged in the cooling plate 8. Detection mechanisms are arranged in each group of through grooves 19.

[0050] When the thick plate 9 reaches a certain temperature, the inflation of the airbag 12 will cause the two first contact blocks 17 to come into contact and squeeze the second spring 16. At this time, the convex block 20 will be controlled to open to achieve the purpose of triggering.

[0051] As an embodiment of the present invention, referring to Figure 1 , 3 and 6, the detection mechanism includes a convex block 20. Each group of convex blocks 20 is slidably installed in the inner cavity of the through groove 19. A third spring 25 is installed at the bottom of each group of convex blocks 20. The bottom ends of each group of third springs 25 are fixedly connected to the inner cavity of the through groove 19. A fourth spring 42 is installed on the inner wall of each group of through grooves 19. A second contact block 21 is installed between the bottom of each group of convex blocks 20 and the top end of the adjacent fourth spring 42. A connecting plate 22 is fixedly connected to one side of the bottom of each group of convex blocks 20. A third contact block 23 is installed between one side of the bottom of each group of connecting plates 22 and the inner wall of the adjacent through groove 19. A lamp 24 is installed on one side of the bottom of the inner cavity of each group of through grooves 19. A sliding mechanism is provided at the bottom of the base 1.

[0052] During the welding process of the thick plate 9, serious heat accumulation may cause deformation. At this time, the third spring 25 is in a slightly compressed state, and the fourth spring 42 is in a normal state. When the thick plate 9 is deformed, there will be convex and concave situations. When the thick plate 9 bulges, it will drive the convex block 20 to move downward and squeeze the third spring 25. At this time, the two second contact blocks 21 can be brought into contact. If the thick plate 9 continues to bulge, the two second contact blocks 21 will squeeze the fourth spring 42 and the third spring 25. At this time, the lamp 24 will be turned on. When the thick plate 9 is sunken, the extension driven by the acting force of the third spring 25 will drive the convex block 20 to move upward. The convex block 20 can drive the two third contact blocks 23 to come into contact through the connecting plate 22. At this time, the lamp 24 will be turned on to achieve the purpose of detection and give a bright light reminder to the staff. According to the situation of the lamp 24, it can be known whether the horizontal position of the thick plate 9 is deformed, and whether there are defects on the surface of the thick plate 9 can also be detected.

[0053] As an embodiment of the present invention, referring to Figure 1 and 5 , the sliding mechanism includes a vertical plate 4. There are two groups of vertical plates 4. Both vertical plates 4 are fixedly connected to the top plate 3. A push plate 5 is slidably connected between the two vertical plates 4. A laser 6 is installed on the push plate 5. A cylinder 7 is installed on the top of the base 1. The output end of the cylinder 7 is fixedly connected to the push plate 5. A pushing mechanism is provided at the bottom of the push plate 5.

[0054] By the extension and contraction of the output end of the cylinder 7, the laser 6 can be driven by the push plate 5 to move downward and upward.

[0055] As an embodiment of the present invention, referring to Figure 1 and 5, the pushing mechanism includes push rods 26. There are two sets of push rods 26. Both push rods 26 are fixedly connected to the push plate 5. The bottoms of the two push rods 26 are both slidably connected to slide rods 27. The rod walls of the two slide rods 27 are both slidably connected to movable plates 28. The rod walls of the two slide rods 27 are both sleeved with fifth springs 29. The two ends of the two fifth springs 29 are fixedly connected to the adjacent push rods 26 and movable plates 28 respectively. The bottoms of the two slide rods 27 are both fixedly connected with shielding mechanisms.

[0056] When the push plate 5 moves downward, it will drive the movable plate 28 to move downward through the fifth spring 29. The downward movement of the movable plate 28 is convenient for subsequently driving the shielding mechanism to be in a vertical state, so as to shield the debris sputtered during subsequent welding.

[0057] As an embodiment of the present invention, refer to Figure 1 and 5 , the shielding mechanism includes bottom plates 30. Both bottom plates 30 are fixedly connected to the bottom ends of the adjacent slide rods 27. The tops of the two bottom plates 30 are both rotatably connected with baffle plates 39. The opposite ends of the two baffle plates 39 are both movably connected with connecting rods 31. The other ends of the two connecting rods 31 are both movably connected with the adjacent movable plates 28. The opposite sides of the two bottom plates 30 are both movably connected with linkage mechanisms.

[0058] Due to the force supported by the connecting rod 34, when the push plate 5 moves downward, it will drive the movable plate 28 to move downward through the fifth spring 29. The movement of the movable plate 28 will drive the baffle plate 39 to deflect through the connecting rod 31. When the movable plate 28 moves to the top of the bottom plate 30, the baffle plate 39 can be in a vertical state to achieve the purpose of shielding. When the push rod 26 pushes the movable plate 28 to contact the top of the bottom plate 30 through the fifth spring 29, the baffle plate 39 can be in a vertical state. When the push plate 5 continues to move downward, it will push the bottom plate 30 to move downward through the fifth spring 29 to the top of the thick plate 9, so as to achieve extrusion and fixation of the top of the thick plate 9 and prevent the thick plate 9 from shifting during the welding process;

[0059] Through the setting of the fifth spring 29, it can be realized that when the push plate 5 drives the laser 6 to continue to move downward for welding later, it will squeeze the fifth spring 29. When it is about to contact the thick plate 9, the slight up and down movement during welding will not affect the shielding mechanism and the linkage mechanism.

[0060] As an embodiment of the present invention, refer to Figure 1 、 4 and 5, the linkage mechanism includes a connecting rod 34. The top of the cooling plate 8 is fixedly connected with two symmetrically arranged mounting plates 32. Two first toothed plates 33 are slidably connected to the two mounting plates 32. The opposite ends of the two first toothed plates 33 are both movably connected with the adjacent connecting rod 34. The opposite sides of the two mounting plates 32 are both rotatably connected with gears 35. Elastic clamping mechanisms are arranged at the bottoms of the two gears 35.

[0061] When the bottom plate 30 moves downward, the bottom plate 30 drives the first toothed plate 33 to move outward through the connecting rod 34, and the first toothed plate 33 drives the second toothed plate 36 to move inward through the gear 35.

[0062] As an implementation manner of the present invention, refer to Figure 1 、 4 and 5, the elastic clamping mechanism includes the second toothed plate 36. Both second toothed plates 36 are slidably connected to the adjacent mounting plate 32. Both gears 35 are meshed and connected to the adjacent first toothed plate 33 and second toothed plate 36. Two clamping plates 37 are arranged at the opposite ends of both second toothed plates 36. The adjacent two clamping plates 37 are fixedly connected through the sixth spring 38. Both second toothed plates 36 are fixedly connected to the adjacent clamping plates 37.

[0063] The inward movement of the two second toothed plates 36 will drive the clamping plates 37 to squeeze the side wall of the thick plate 9. Through the setting of the sixth spring 38, the movement distance of the second toothed plate 36 will not be restricted, and the purpose of clamping can be achieved to prevent the thick plate 9 from shifting during the welding process.

[0064] As an implementation manner of the present invention, refer to Figure 1 and 3 , the adjacent two second contact blocks 21 and the adjacent two third contact blocks 23 are commonly electrically connected to the adjacent lamp 24.

[0065] When the two second contact blocks 21 come into contact or the third contact blocks 23 come into contact, the lamp 24 will be turned on and light up.

[0066] Working principle: First, put cold water into the water storage tank 40, but do not fill it up, just make sure there is no water in the circulation pipe 18 inside the cooling plate 8. Align the two thick plates 9 and place them at the center of the top of the cooling plate 8. Start the cylinder 7. The extension of the output end of the cylinder 7 drives the laser 6 to move downward through the push plate 5. Due to the support force of the connecting rod 34, when the push plate 5 moves downward, it will drive the movable plate 28 to move downward through the fifth spring 29. The movement of the movable plate 28 will drive the baffle 39 to deflect through the connecting rod 31. When the movable plate 28 moves to the top of the bottom plate 30, the baffle 39 can be in a vertical state. If the push plate 5 continues to move downward, it will push the bottom plate 30 downward to the top of the thick plate 9 through the fifth spring 29, so as to squeeze and fix the top of the thick plate 9. When the bottom plate 30 moves downward, the bottom plate 30 drives the first toothed plate 33 to move outward through the connecting rod 34. The first toothed plate 33 drives the second toothed plate 36 to move inward through the gear 35. The inward movement of the two second toothed plates 36 drives the clamping plate 37 to squeeze the side wall of the thick plate 9. Through the setting of the sixth spring 38, the movement distance of the second toothed plate 36 is not restricted, and the clamping purpose is achieved, preventing the thick plate 9 from shifting during the welding process. Through the setting of the fifth spring 29, when the push plate 5 drives the laser 6 to continue to move downward for welding later, it will squeeze the fifth spring 29. When it is about to contact the thick plate 9, the slight up and down movement during welding will not affect the shielding mechanism and the linkage mechanism, and the welding work can be realized.

[0067] When the thick plate 9 generates heat during the welding process, the temperature of the thick plate 9 will be transmitted to the inside of the airbag 12 through the heat conducting plate 11 and the heat conducting rod 13. At this time, the airbag 12 can expand to drive the pressing plate 14 to move downward and squeeze the first spring 15. When the thick plate 9 reaches a certain heat, the expansion of the airbag 12 will cause the two first contact blocks 17 to contact and squeeze the second spring 16. At this time, the water pump 41 will be controlled to start. The water pump 41 pumps the cold water in the water storage tank 40 into the water storage tank 40 through the circulation pipe 18, which can cool the cooling plate 8, and thus cool the thick plate 9.

[0068] When the thick plate 9 is being welded, serious heat accumulation may cause deformation. When the thick plate 9 is deformed, there will be concave and convex situations. When the thick plate 9 bulges, it will drive the convex block 20 to move downward and squeeze the third spring 25. At this time, the two second contact blocks 21 can be in contact. At this time, the lamp 24 will be turned on. When the thick plate 9 is concave, under the action of the third spring 25, it will drive the convex block 20 to move upward. The convex block 20 can drive the two third contact blocks 23 to be in contact through the connecting plate 22. At this time, the lamp 24 will be turned on to achieve the detection purpose. According to the situation of the lamp 24, it can be known whether the horizontal position of the thick plate 9 is deformed, and it can also detect whether there are defects on the surface of the thick plate 9.

[0069] All electrical components appearing in this article are electrically connected to the external main controller and the 220V mains through a transformer, and the main controller can be a conventional known device such as a computer for control. The product model provided by the present invention is only used according to the structural characteristics of the product for this technical solution. The product will be adjusted and modified after purchase to make it more matching and conforming to the technical solution to which the present invention belongs. It is an optimal application technical solution for this technical solution. The model of the product can be replaced and modified according to the required technical parameters. This is well-known to those skilled in the art. Therefore, those skilled in the art can clearly obtain the corresponding use effects through the technical solution provided by the present invention.

[0070] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A real-time temperature control and shape control device for thick plate laser welding, comprising: Base (1), a plurality of groups of support rods (2) are uniformly and fixedly connected to the top of the base (1), the top of each group of support rods (2) is fixedly connected with a top plate (3), a cooling plate (8) is fixedly connected to the top of the base (1), and two symmetrically arranged thick plates (9) are placed on the top of the cooling plate (8); it is characterized in that: a cooling mechanism is arranged in the cooling plate (8); the cooling mechanism includes a circulation pipe (18), the circulation pipe (18) is sleeved in the cooling plate (8), a water storage tank (40) is fixedly connected to the bottom of the base (1), both ends of the circulation pipe (18) penetrate through the base (1) and the water storage tank (40), a water pump (41) is installed on the circulation pipe (18), and the water pump (41) is installed on one side of the bottom of the base (1); a plurality of groups of heat dissipation fins are uniformly installed at the bottom of the water storage tank (40), and a thermal expansion mechanism is arranged in the cooling plate (8). The thermal expansion mechanism includes a slot (10), an air bag (12) is installed at the top of the inner cavity of the slot (10), the gas in the air bag (12) is ammonia, a heat conduction plate (11) is sleeved at the center of the top of the base (1), a plurality of heat conduction rods (13) are uniformly and fixedly connected to the bottom of the heat conduction plate (11), the bottom ends of each group of heat conduction rods (13) penetrate through the cooling plate (8) and the air bag (12), a pressing plate (14) is in contact with the bottom of the air bag (12), the pressing plate (14) is slidably installed in the inner cavity of the slot (10), and a first spring (15) is installed between the pressing plate (14) and the bottom of the inner cavity of the slot (10), and a trigger mechanism is arranged on one side of the first spring (15). The trigger mechanism includes a second spring (16), the second spring (16) is installed at the bottom of the inner cavity of the slot (10), first contact blocks (17) are installed at the top of the second spring (16) and the bottom of the pressing plate (14), and the two first contact blocks (17) are electrically connected to the water pump (41) together. Through grooves (19) are uniformly arranged in the cooling plate (8), and a detection mechanism is arranged in each group of through grooves (19). The detection mechanism includes a convex block (20), each convex block (20) is slidably installed in the inner cavity of the through groove (19), a third spring (25) is installed at the bottom of each convex block (20), the bottom ends of each group of third springs (25) are fixedly connected to the inner cavity of the through groove (19), fourth springs (42) are installed on the inner walls of each group of through grooves (19), second contact blocks (21) are installed at the bottom of each convex block (20) and the top ends of the adjacent fourth springs (42), a connecting plate (22) is fixedly connected to one side of the bottom of each convex block (20), a third contact block (23) is installed on one side of the bottom of each connecting plate (22) and the inner wall of the adjacent through groove (19), and a lamp (24) is installed on one side of the bottom of the inner cavity of each through groove (19). A sliding mechanism is arranged at the bottom of the base (1). The sliding mechanism includes vertical plates (4). There are two sets of the vertical plates (4), and both of the two vertical plates (4) are fixedly connected to the top plate (3). A push plate (5) is slidably connected between the two vertical plates (4). A laser (6) is installed on the push plate (5). A cylinder (7) is installed on the top of the base (1). The output end of the cylinder (7) is fixedly connected to the push plate (5). A pushing mechanism is arranged at the bottom of the push plate (5). The pushing mechanism includes push rods (26). There are two sets of the push rods (26), and both of the two push rods (26) are fixedly connected to the push plate (5). The bottom of each of the two push rods (26) is slidably connected to a sliding rod (27). A movable plate (28) is slidably connected to the rod wall of each of the two sliding rods (27). A fifth spring (29) is sleeved on the rod wall of each of the two sliding rods (27). Both ends of the two fifth springs (29) are fixedly connected to the adjacent push rod (26) and the movable plate (28). A shielding mechanism is fixedly connected to the bottom of each of the two sliding rods (27). The shielding mechanism includes bottom plates (30). Both of the two bottom plates (30) are fixedly connected to the bottom end of the adjacent sliding rod (27). A baffle (39) is movably connected to the top of each of the two bottom plates (30). A connecting rod (31) is movably connected to the facing ends of the two baffles (39). The other ends of the two connecting rods (31) are movably connected to the adjacent movable plate (28). A linkage mechanism is movably connected to the facing sides of the two bottom plates (30). The linkage mechanism includes a connecting rod (34). Two symmetrically arranged mounting plates (32) are fixedly connected to the top of the cooling plate (8). A first toothed plate (33) is slidably connected to each of the two mounting plates (32). The opposite ends of the two first toothed plates (33) are movably connected to the adjacent connecting rod (34). A gear (35) is rotatably connected to the facing sides of the two mounting plates (32). An elastic clamping mechanism is arranged at the bottom of each of the two gears (35). The elastic clamping mechanism includes a second toothed plate (36). The two second toothed plates (36) are slidably connected to the adjacent mounting plate (32). Each of the two gears (35) is meshed with the adjacent first toothed plate (33) and the second toothed plate (36). Two clamping plates (37) are arranged at the opposite ends of the two second toothed plates (36). The adjacent two clamping plates (37) are fixedly connected by a fifth spring (38). The two second toothed plates (36) are fixedly connected to the adjacent clamping plates (37).

2. The real-time temperature control and shape control device for thick plate laser welding according to claim 1, characterized in that: The adjacent two second contact blocks (21) and the adjacent two third contact blocks (23) are commonly electrically connected to the adjacent lamp (24).

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