Laser welding device for machining plate heat exchanger

Abstract

The invention provides a laser welding device for machining a plate heat exchanger, and belongs to the technical field of laser welding machines. The laser welding device for plate heat exchanger machining comprises a main machine box, a first vertical frame is fixedly installed on the top face of the main machine box, a first guide rail frame is arranged on the surface of one side of the first vertical frame, a second guide rail frame is arranged on one side of the first guide rail frame, and a laser welding head is installed on one side of the second guide rail frame. Two third guide rail frames are installed on the top face of the mainframe box, and a turn-over assembly is arranged on the top face of the top frame. Through the arrangement of the turn-over assembly, the purpose of automatically turning over a plate can be achieved, compared with existing manual turn-over, the welding efficiency can be greatly improved, then the overall practicability of the device is greatly improved, in the process, turn-over is conducted only through the overall power of the device, and therefore the welding efficiency is greatly improved. And no external power source is arranged, so that the overall practicability of the device is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding machines, and in particular to a laser welding device for processing a plate heat exchanger. Background Art

[0002] Plate heat exchanger is a kind of efficient heat exchange equipment, which is widely used in chemical, refrigeration, heating and food industries. Through precise processing and design, plate heat exchanger can play an important role in energy saving and efficient heat exchange. In the manufacturing process of plate heat exchanger, laser welding machine is needed to weld the plates inside the plate heat exchanger, that is, to weld isolation points between the plates to ensure that there are gaps for air circulation between the plates when each plate is installed inside the heat exchanger.

[0003] However, the existing laser welding machines still have some problems in actual use. For example, the existing laser welding equipment can only weld one side of the plate during the welding process. After welding on one side, the plate needs to be removed and turned over for welding again, which increases the labor intensity of the operator. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a laser welding device for processing a plate heat exchanger, which overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a laser welding device for processing a plate heat exchanger, comprising a main box, a stand frame 1 is fixedly installed on the top surface of the main box, a guide rail frame 1 is arranged on the surface of one side of the stand frame 1, a guide rail frame 2 is arranged on one side of the guide rail frame 1, a laser welding head is installed on one side of the guide rail frame 2, two guide rail frames 3 are installed on the top surface of the main box, a mobile frame is arranged on the top surface of the two guide rail frames 3, a top frame is installed on the top surface of the mobile frame, a flip assembly is arranged on the top surface of the top frame, an auxiliary welding assembly is arranged on the top surface of the main box, a protective assembly is arranged at the rear of the main box, and an extension plate is fixedly installed on the surface of one side of the mobile frame;

[0007] The flip assembly includes a fixing frame, the number of the fixing frames is four, the four fixing frames are respectively fixedly mounted on the top surfaces of the two top frames, a clamping frame is arranged inside the fixing frame, a plate is clamped inside the clamping frame, and the flip assembly is arranged to flip the plate;

[0008] The auxiliary welding assembly includes a box body 1 and a box body 2, and the box body 1 and the box body 2 are respectively fixedly mounted on one side of the two guide rail frames 3, and the auxiliary welding assembly is used for cleaning the plate;

[0009] The protection component includes a liquid storage tank, which is fixedly installed on the rear surface of the main box. The protection component is used to protect the plate after welding.

[0010] In a preferred solution, a first clamping groove is provided inside the fixing frame, and a roller is installed on the side of the clamping frame, and the roller is located inside the first clamping groove.

[0011] In a preferred solution, a connecting shaft is fixedly connected to one side surface of the clamping frame, a ratchet group is installed on the outer surface of the connecting shaft, an inclined frame body is fixedly installed on the top surface of the main box, the inclined frame body is arranged between the two top frames, and a tooth groove is opened on the inclined surface of the inclined frame body.

[0012] In a preferred solution, a vertical frame 2 is fixedly installed on the top surface of the main case, two rectangular frames 1 are fixedly connected to the bottom surface of the vertical frame 2, two rectangular frames 2 are fixedly connected to the front surface of the vertical frame 2, the two rectangular frames 2 are arranged inclined, connecting pipes are fixedly connected between the two rectangular frames 1 and the two rectangular frames 2, a plurality of air outlet pipes are fixedly connected to one side of the two rectangular frames 1 and the two rectangular frames 2, and one end of the plurality of air outlet pipes is fixedly connected.

[0013] In a preferred embodiment, a bladder is installed inside both box body one and box body two, a snap-in groove two is opened on one side surface of box body one, a snap-in plate is movably snap-inned inside the snap-in groove two, an extrusion plate is movably snap-inned inside box body one, one side surface of the extrusion plate is bonded to one side surface of the bladder, and one side surface of the snap-in plate is fixedly connected to one side surface of the extrusion plate.

[0014] In a preferred solution, the top surfaces of the box bodies 1 and 2 are fixedly connected with air pipes, the outer surfaces of the air pipes are fixedly installed with one-way valves 1, the other end of one of the air pipes is fixedly connected to a side surface of one of the rectangular frames 1, the other end of the other air pipe is fixedly connected to a side surface of one of the rectangular frames 2, the side surfaces of the box bodies 1 and 2 are fixedly connected with air intake pipes, and the outer surfaces of the air intake pipes are fixedly installed with one-way valves 2.

[0015] In a preferred solution, a tank body is arranged above the liquid storage tank, a baffle is fixedly installed on the inner wall of the tank body, a sealing plate is movably clamped inside the tank body, a spring is fixedly connected between the bottom surface of the sealing plate and the inner bottom surface of the tank body, a connecting pipe 1 is fixedly connected between the tank body and the liquid storage tank, and a one-way valve 3 is fixedly installed on the outer surface of the connecting pipe 1.

[0016] In a preferred solution, a T-shaped frame is fixedly mounted on the top surface of the sealing plate, wedge blocks are fixedly mounted on both ends of the top surface of the T-shaped frame, and an extension rod is fixedly connected to one side surface of the extension plate.

[0017] In a preferred solution, the top surface of the sealing plate is fixedly connected to a connecting tube 2, a one-way valve 4 is fixedly installed on the outer surface of the connecting tube 2, the top end of the connecting tube 2 is fixedly connected to a rectangular tube, both ends of the rectangular tube are fixedly connected to an infusion tube, and the infusion tube is a corrugated tube.

[0018] In a preferred solution, the interior of the top frame is a hollow structure, a plurality of air outlet nozzles are fixedly connected to the top surface of the top frame, and one end of the infusion tube is fixedly connected to a side surface of the top frame.

[0019] The present invention provides a laser welding device for processing a plate heat exchanger, and its beneficial effects include:

[0020] The cam is then moved back and forth with the upper and lower frames moving in a direction away from the inclined frame body, so that the upper and lower frames can be moved in a direction away from the inclined frame body, and the lower and upper frames can be moved in a direction away from the inclined frame body, so that the lower and upper frames can be moved in a direction away from the inclined frame body, and the lower and upper frames can be moved in a direction away from the inclined frame body, and the lower and upper frames can be moved in a direction away from the inclined frame body, and the upper and lower ...

[0021] 2. By setting up an auxiliary welding assembly, when the mobile frame drives the top frame to move toward the direction of the inclined frame body, when the extension plates installed on the outside of the two mobile frames contact the clamping plate, it can drive the clamping plate to move inside the clamping groove 2, and squeeze the air inside the sac body into the inside of the air pipe, and spray it toward the plate in the moving process through the air outlet pipe set on the front surface of the rectangular frame 1. On the one hand, it can seduce and realize the cleaning of the welding surface of the plate after the welding of the plate, and on the other hand, it can clean the plate in the flipping process again through the inclined rectangular frame 2 during the flipping process, and in the flipping process, the welding surface of the plate is presented on one side of the rectangular frame 2, so as to realize the cleaning of the welding surface of the plate, thereby ensuring the subsequent welding quality, and then making the subsequent welding effect better.

[0022] 3. By setting up a protective component, when the mobile frame drives the top frame to move toward the direction of the laser welding head, it drives the extension rod to move toward the direction of the wedge block, so that the extension rod contacts the wedge surface of the wedge block, and the T-frame gradually moves downward, driving the sealing plate to move downward inside the tank body, squeezing the protective oil inside the tank body into the inside of the connecting pipe 2, and spraying it toward the welding surface of the plate through multiple air outlet nozzles installed on the top surface of the mobile frame, thereby forming a protective film on the welding surface of the plate, thereby achieving effective protection of the welding surface of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is an overall stereogram provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure of a flip assembly provided in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the overall front view structure provided for an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the structure of an auxiliary welding assembly provided in an embodiment of the present invention;

[0028] Figure 5 The embodiments of the present invention provide Figure 4 The enlarged structural diagram at A in the middle;

[0029] Figure 6 A schematic diagram of a top frame structure provided in an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of the overall rear view structure provided for an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of the structure of a protection component provided in an embodiment of the present invention;

[0032] Fig. 9 The embodiments of the present invention provide Figure 8 Enlarged structural diagram at B in the middle.

[0033] In the figure: 1, main box; 2, stand 1; 3, guide rail frame 1; 4, guide rail frame 2; 5, laser welding head; 6, guide rail frame 3; 7, mobile frame; 8, top frame; 9, plate; 10, inclined frame; 11, flip assembly; 1101, fixed frame; 1102, clamping groove 1; 1103, roller; 1104, clamping frame; 1105, connecting shaft; 1106, ratchet group; 12, auxiliary welding assembly; 1201, box body 1; 1202, box body 2; 1203, stand 2; 1204, rectangular frame 1; 1205, rectangular frame 2; 1206, air outlet pipe; 1207, air outlet nozzle; 1208, connecting pipe; 120 9. bladder body; 1210. extrusion plate; 1211. snap-in groove 2; 1212. air delivery pipe; 1213. one-way valve 1; 1214. snap-in plate; 1215. air inlet pipe; 1216. one-way valve 2; 13. protection assembly; 1301. liquid storage tank; 1302. connecting pipe 1; 1303. one-way valve 3; 1304. T-shaped frame; 1305. wedge block; 1306. rectangular tube; 1307. infusion pipe; 1308. tank body; 1309. baffle; 1310. sealing plate; 1311. spring; 1312. connecting pipe 2; 1313. one-way valve 4; 14. extension plate; 15. air outlet nozzle; 16. extension rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1-Figure 9 The present invention provides a technical solution: a laser welding device for processing a plate heat exchanger, comprising a main box 1, a vertical frame 2 is fixedly installed on the top surface of the main box 1, a guide frame 3 is arranged on one side of the vertical frame 2, a guide frame 2 4 is arranged on one side of the guide frame 3, a laser welding head 5 is installed on one side of the guide frame 2 4, two guide frames 3 6 are installed on the top surface of the main box 1, a moving frame 7 is arranged on the top surface of the two guide frames 3 6, a top frame 8 is installed on the top surface of the moving frame 7, a flip assembly 11 is arranged on the top surface of the top frame 8, an auxiliary welding assembly 12 is arranged on the top surface of the main box 1, a protective assembly 13 is arranged at the rear of the main box 1, and an extension plate 14 is fixedly installed on one side of the moving frame 7;

[0036] During operation, in the process of welding the plate 9, it is only necessary to clamp the plate 9 to be welded and place it inside the clamping frame 1104. Then, after the plate 9 is fixed, the top frame 8 can be driven to move toward the bottom of the guide frame 2 4 by controlling the movable frame 7. After reaching the set position, the laser welding head 5 can be driven by the guide frame 2 4 to perform welding on the plate 9 below, thereby realizing automatic welding of the plate 9. After the welding is completed, the plate 9 can be taken out from the inside of the clamping frame 1104.

[0037] The flip assembly 11 includes a fixing frame 1101, and the number of the fixing frames 1101 is four. The four fixing frames 1101 are respectively fixedly mounted on the top surfaces of the two top frames 8. A clamping frame 1104 is arranged inside the fixing frame 1101. The plate 9 is clamped inside the clamping frame 1104. The flip assembly 11 is arranged to flip the plate 9.

[0038] A snap-in groove 1102 is provided inside the fixed frame 1101, a roller 1103 is installed on the side of the clamping frame 1104, and the roller 1103 is located inside the snap-in groove 1102. A connecting shaft 1105 is fixedly connected to the surface of one side of the clamping frame 1104, and a ratchet group 1106 is installed on the outer surface of the connecting shaft 1105. An inclined frame body 10 is fixedly installed on the top surface of the main chassis 1, and the inclined frame body 10 is arranged between the two top frames 8, and a tooth groove is provided on the inclined surface of the inclined frame body 10.

[0039] During operation, after one side of the plate 9 inside the clamping frame 1104 is welded, the top frame 8 can be driven to move toward the direction of the inclined frame body 10 by controlling the moving frame 7. During the movement, after the ratchet group 1106 contacts the inclined surface of the inclined frame body 10, that is, after contacting the tooth groove of the inclined frame body 10, as the top frame 8 moves, it can drive one end of the clamping frame 1104 to tilt upward, so that the roller 1103 at the tilted end is away from the inside of the clamping groove 1102, and as the ratchet group 1106 continues to move, it can gradually drive the clamping frame 1104 to be in a vertical state, and any roller 1103 inside the clamping groove 1102 is in the inner part of the clamping groove 1102. When the upper frame 8 moves in the direction away from the inclined frame body 10, so that the angle between the plate 9 on the original welding surface and the fixed frame 1101 becomes smaller, it can fall downward under its own gravity, so that the four rollers 1103 are re-engaged in the inside of the clamping groove 1102, thereby realizing the flipping of the clamping frame 1104, that is, realizing the flipping of the plate 9. After the flipping is completed, the upper frame 8 can be driven by controlling the movable frame 7 to move back to the bottom of the laser welding head 5 to perform welding on the other side of the plate 9. Moreover, when the upper frame 8 moves toward the direction of the laser welding head 5, the ratchet group 1106 will not drive the connecting shaft 1105 and the clamping frame 1104 to move.

[0040] Through the above, the purpose of automatically turning over the plate 9 can be achieved, which is safer than the existing manual turning over, and can greatly improve the efficiency of welding, thereby greatly improving the practicality of the entire device. Moreover, in this process, only the power of the entire device itself is relied upon for turning over, and there is no external power source, which further improves the practicality of the entire device.

[0041] The auxiliary welding assembly 12 includes a box body 1201 and a box body 1202, and the box body 1201 and the box body 1202 are respectively fixedly installed on one side of the two guide rail frames 3 6, and the auxiliary welding assembly 12 is used to clean the plate 9;

[0042] A stand 2 1203 is fixedly installed on the top surface of the main chassis 1, two rectangular frames 1 1204 are fixedly connected to the bottom surface of the stand 2 1203, two rectangular frames 1 1205 are fixedly connected to the front surface of the stand 2 1203, the two rectangular frames 1205 are inclined, connecting pipes 1208 are fixedly connected between the two rectangular frames 1 1204 and the two rectangular frames 1205, a plurality of air outlet pipes 1206 are fixedly connected to one side of the two rectangular frames 1 1204 and the two rectangular frames 1205, one end of the plurality of air outlet pipes 1206 is fixedly connected to 1207, capsules 1209 are installed inside the box 1 1201 and the box 2 1202, a card slot 2 1211 is opened on one side of the box 1 1201, and a card slot 1214 is movably carded inside the card slot 1211, and the box An extrusion plate 1210 is movably connected to the inside of 1201, and one side surface of the extrusion plate 1210 is bonded to one side surface of the sac 1209, and one side surface of the clamping plate 1214 is fixedly connected to one side surface of the extrusion plate 1210. The top surfaces of the box body 1201 and the box body 2 1202 are fixedly connected with an air pipe 1212, and a one-way valve 1213 is fixedly installed on the outer surface of the air pipe 1212. The other end of one of the air pipes 1212 is fixedly connected to one side surface of one of the rectangular frames 1204, and the other end of the other air pipe 1212 is fixedly connected to one side surface of one of the rectangular frames 1205. One side surface of the box body 1201 and the box body 2 1202 are fixedly connected with an air inlet pipe 1215, and a one-way valve 1216 is fixedly installed on the outer surface of the air inlet pipe 1215.

[0043] During operation, when the moving frame 7 drives the top frame 8 to move in the direction of the inclined frame body 10, when the extension plate 14 installed on the outer sides of the two moving frames 7 contacts the clamping plate 1214, it can drive the clamping plate 1214 to move inside the clamping groove 1211. During the movement, it can drive the extrusion plate 1210 to squeeze the bladder 1209 inside the box body 1201 and the box body 2 1202, and squeeze the air inside the bladder 1209 into the air pipe 1212, wherein the air inside the box body 1201 finally enters the interior of the rectangular frame 1204, and is sprayed toward the plate 9 in the moving process through the air outlet pipes 1206 and 1207 arranged on the front surface of the rectangular frame 1204, that is, it is blown toward the welding surface of the plate 9, which can cause the welding surface of the plate 9 to be damaged. The debris generated by welding and the attached dust are blown away to clean the welding surface of the plate 9, and the air in the capsule 1209 inside the box body 1202 enters the interior of the rectangular frame 1205 through another air pipe 1212. During the flipping of the plate 9, the plate 9 can be cleaned again, and with the movement of the top frame 8, that is, with the flipping of the plate 9, the unwelded surface of the plate 9 can be effectively cleaned to prevent the plate 9 from retaining debris and dust on the surface during the subsequent welding process, resulting in poor welding effect. As the flipping of the plate 9 is completed, the movable frame 7 drives the top frame 8 to move toward the direction of the laser welding head 5, and the capsule 1209 returns to its original state, that is, the air is re-inhaled into the interior of the capsule 1209 through the air inlet pipe 1215.

[0044] Through the above, on the one hand, the welding surface of the plate 9 can be cleaned after the welding of the plate 9, and on the other hand, the plate 9 in the flipping process can be cleaned again through the inclined rectangular frame 1205, and in the flipping process, the welding surface of the plate 9 is presented on one side of the rectangular frame 1205, so as to achieve the cleaning of the welding surface of the plate 9, thereby ensuring the subsequent welding quality and making the subsequent welding effect better.

[0045] The protection component 13 includes a liquid storage tank 1301, which is fixedly mounted on the rear surface of the main chassis 1. The protection component 13 is used to protect the plate 9 after welding.

[0046] A tank body 1308 is arranged above the liquid storage tank 1301, a baffle plate 1309 is fixedly installed on the inner wall of the tank body 1308, a sealing plate 1310 is movably connected to the inside of the tank body 1308, a spring 1311 is fixedly connected between the bottom surface of the sealing plate 1310 and the inner bottom surface of the tank body 1308, a connecting pipe 1302 is fixedly connected between the tank body 1308 and the liquid storage tank 1301, a one-way valve 3 1303 is fixedly installed on the outer surface of the connecting pipe 1302, a T-shaped frame 1304 is fixedly installed on the top surface of the sealing plate 1310, and both ends of the top surface of the T-shaped frame 1304 are fixedly installed There is a wedge block 1305, and an extension rod 16 is fixedly connected to the surface of one side of the extension plate 14. A connecting pipe 1312 is fixedly connected to the top surface of the sealing plate 1310. A one-way valve 1313 is fixedly installed on the outer surface of the connecting pipe 1312. The top of the connecting pipe 1312 is fixedly connected to a rectangular tube 1306. Both ends of the rectangular tube 1306 are fixedly connected to an infusion tube 1307. The infusion tube 1307 is a corrugated tube. The interior of the top frame 8 is a hollow structure. A plurality of air outlet nozzles 15 are fixedly connected to the top surface of the top frame 8. One end of the infusion tube 1307 is fixedly connected to the surface of one side of the top frame 8.

[0047] During operation, when the mobile frame 7 drives the top frame 8 to move toward the direction of the laser welding head 5, the extension rod 16 can be driven to move toward the direction of the wedge block 1305. As the welding progresses, the extension rod 16 can be brought into contact with the wedge surface of the wedge block 1305. As the mobile frame 7 drives the top frame 8 to move step by step, the T-shaped frame 1304 can be gradually moved downward, thereby driving the sealing plate 1310 to move downward inside the tank body 1308. During the movement, the protective oil inside the tank body 1308 can be squeezed to the connecting pipe 1312. , and is transported into the interior of the mobile rack 7 through the connecting pipe 1312, and finally is atomized and sprayed toward the welding surface of the plate 9 through multiple air outlet nozzles 15 installed on the top surface of the mobile rack 7, thereby forming a protective film on the welding surface of the plate 9, thereby achieving effective protection of the welding surface of the plate 9, and as the extension rod 16 moves away from the wedge block 1305, the sealing plate 1310 can be lowered by the reset action of the spring 1311, and the protective oil inside the liquid storage tank 1301 is sucked into the tank body 1308 again, which is convenient for subsequent use.

[0048] In the above process, after the welding of the other side of the plate 9 is completed, it can be flipped over and then the movable frame 7 is controlled to drive the top frame 8 to move toward the direction of the liquid storage tank 1301. Through the above principle, the protective oil is sprayed onto the welding surface of the other side of the plate 9, thereby achieving the purpose of spraying the protective oil onto the welding surface of the plate 9 after the plate 9 is welded, thereby achieving an effective protection effect on the welded plate 9.

[0049] Specifically, the working process or working principle of the laser welding device for processing a plate-type heat exchanger is as follows: when in use, the plate 9 to be welded is clamped and placed inside the clamping frame 1104, and then after the plate 9 is fixed, the top frame 8 can be driven to move toward the bottom of the guide frame 2 4 by controlling the movable frame 7, until it reaches the set position, the laser welding head 5 can be driven to move by the guide frame 2 4 to perform welding on the plate 9 below, thereby realizing automatic welding of the plate 9, and after the welding is completed, the plate 9 can be taken out from the inside of the clamping frame 1104, and when one side of the plate 9 inside the clamping frame 1104 is welded, the top frame 8 is driven to move toward the direction of the inclined frame body 10 by controlling the movable frame 7, and when After the ratchet group 1106 contacts the inclined surface of the inclined frame body 10, as the top frame 8 moves, it can drive one end of the clamping frame 1104 to tilt upward, so that the roller 1103 at the tilted end is away from the inside of the clamping groove 1102, and as the ratchet group 1106 continues to move, it can gradually drive the clamping frame 1104 to a vertical state, and the roller 1103 inside the clamping groove 1102 moves in the direction away from the inclined frame body 10 inside the clamping groove 1102, so that the angle between the plate 9 of the original welding surface and the fixed frame 1101 becomes smaller, and it can fall downward under its own gravity, so that the four rollers 1103 are re-clamped in the inside of the clamping groove 1102, thereby realizing the flipping of the clamping frame 1104;

[0050] When the moving frame 7 drives the top frame 8 to move in the direction of the inclined frame body 10, when the extension plates 14 installed on the outer sides of the two moving frames 7 contact the clamping plate 1214, the clamping plate 1214 can be driven to move inside the clamping groove 1211, and the air inside the capsule 1209 is squeezed into the inside of the air pipe 1212, and is sprayed toward the plate 9 in the moving process through the air outlet pipes 1206 and 1207 arranged on the front surface of the rectangular frame 1204, that is, it is blown toward the welding surface of the plate 9, and the debris and attached dust generated by welding on the welding surface of the plate 9 can be blown away, and the air in the capsule 1209 inside the box body 1202 enters the inside of the rectangular frame 1205 through another air pipe 1212, and the unwelded surface of the plate 9 can be effectively cleaned;

[0051] When the movable frame 7 drives the top frame 8 to move toward the direction of the laser welding head 5, it can drive the extension rod 16 to move toward the direction of the wedge block 1305. As the welding progresses, the extension rod 16 can be made to contact the wedge surface of the wedge block 1305, and as the movable frame 7 drives the top frame 8 to move step by step, the T-frame 1304 can gradually move downward, thereby driving the sealing plate 1310 to move downward inside the tank body 1308. During the movement, the protective oil inside the tank body 1308 can be squeezed into the inside of the connecting pipe 1312, and then transported into the inside of the movable frame 7 through the connecting pipe 1312. Finally, the multiple air outlet nozzles 15 installed on the top surface of the movable frame 7 are sprayed toward the welding surface of the plate 9 in an atomized manner, thereby forming a protective film on the welding surface of the plate 9, thereby achieving effective protection of the welding surface of the plate 9.

Claims

1. A laser welding device for processing a plate heat exchanger, comprising a main box (1), a stand frame (2) being fixedly mounted on the top surface of the main box (1), a guide rail frame (3) being arranged on one side surface of the stand frame (2), a guide rail frame (4) being arranged on one side of the guide rail frame (3), a laser welding head (5) being installed on one side of the guide rail frame (4), characterized in that: The top surface of the main box (1) is provided with two guide rail frames (3) (6), the top surfaces of the two guide rail frames (6) are provided with a movable frame (7), the top surface of the movable frame (7) is provided with a top frame (8), the top surface of the top frame (8) is provided with a flip assembly (11), the top surface of the main box (1) is provided with an auxiliary welding assembly (12), the rear of the main box (1) is provided with a protective assembly (13), and an extension plate (14) is fixedly installed on one side surface of the movable frame (7); The flip assembly (11) comprises a fixing frame (1101), the number of the fixing frames (1101) is four, the four fixing frames (1101) are respectively fixedly mounted on the top surfaces of the two top frames (8), a clamping frame (1104) is arranged on the inner side of the fixing frame (1101), the inside of the clamping frame (1104) clamps the plate (9), and the flip assembly (11) is arranged to flip the plate (9); The auxiliary welding assembly (12) comprises a box body 1 (1201) and a box body 2 (1202), wherein the box body 1 (1201) and the box body 2 (1202) are respectively fixedly mounted on one side of the two guide rail frames 3 (6), and the auxiliary welding assembly (12) is used for cleaning the plate (9); The protection component (13) comprises a liquid storage tank (1301), wherein the liquid storage tank (1301) is fixedly mounted on the rear surface of the main chassis (1), and the protection component (13) is used to protect the plate (9) after welding.

2. A laser welding device for plate heat exchanger processing according to claim 1, characterized in that: A first clamping groove (1102) is provided inside the fixing frame (1101), and a roller (1103) is installed on the side of the clamping frame (1104), and the roller (1103) is located inside the first clamping groove (1102).

3. A laser welding device for processing a plate heat exchanger according to claim 2, characterized in that: A connecting shaft (1105) is fixedly connected to a side surface of the clamping frame (1104), and a ratchet group (1106) is installed on the outer surface of the connecting shaft (1105). An inclined frame body (10) is fixedly installed on the top surface of the main chassis (1), and the inclined frame body (10) is arranged between the two top frames (8), and a tooth groove is provided on the inclined surface of the inclined frame body (10).

4. A laser welding device for plate heat exchanger processing according to claim 1, characterized in that: A stand frame 2 (1203) is fixedly installed on the top surface of the main chassis (1), two rectangular frames 1 (1204) are fixedly connected to the bottom surface of the stand frame 2 (1203), two rectangular frames 2 (1205) are fixedly connected to the front surface of the stand frame 2 (1203), the two rectangular frames 2 (1205) are arranged in an inclined manner, a connecting pipe (1208) is fixedly connected between the two rectangular frames 1 (1204) and the two rectangular frames 2 (1205), a plurality of air outlet pipes (1206) are fixedly connected to one side of the two rectangular frames 1 (1204) and the two rectangular frames 2 (1205), and one end of the plurality of air outlet pipes (1206) is fixedly connected to (1207).

5. A laser welding device for processing a plate heat exchanger according to claim 4, characterized in that: The first box (1201) and the second box (1202) are both equipped with a capsule (1209), and a second snap-in groove (1211) is provided on one side surface of the first box (1201), and a snap-in plate (1214) is movably snap-ined inside the second snap-in groove (1211), and an extrusion plate (1210) is movably snap-ined inside the first box (1201), and a side surface of the extrusion plate (1210) is bonded to a side surface of the capsule (1209), and a side surface of the snap-in plate (1214) is fixedly connected to a side surface of the extrusion plate (1210).

6. A laser welding device for processing a plate heat exchanger according to claim 5, characterized in that: The top surfaces of the box body 1 (1201) and the box body 2 (1202) are both fixedly connected with an air supply pipe (1212), and the outer surfaces of the air supply pipes (1212) are both fixedly installed with a one-way valve (1213). The other end of one of the air supply pipes (1212) is fixedly connected to a side surface of one of the rectangular frames 1 (1204), and the other end of the other air supply pipe (1212) is fixedly connected to a side surface of one of the rectangular frames 2 (1205). The side surfaces of the box body 1 (1201) and the box body 2 (1202) are both fixedly connected with an air intake pipe (1215), and the outer surface of the air intake pipe (1215) is fixedly installed with a one-way valve (1216).

7. A laser welding device for processing a plate heat exchanger according to claim 6, characterized in that: A tank body (1308) is arranged above the liquid storage tank (1301), a baffle (1309) is fixedly installed on the inner wall of the tank body (1308), a sealing plate (1310) is movably engaged inside the tank body (1308), a spring (1311) is fixedly connected between the bottom surface of the sealing plate (1310) and the inner bottom surface of the tank body (1308), a connecting pipe 1 (1302) is fixedly connected between the tank body (1308) and the liquid storage tank (1301), and a one-way valve 3 (1303) is fixedly installed on the outer surface of the connecting pipe 1 (1302).

8. The laser welding device for plate heat exchanger processing according to claim 7, characterized in that: A T-shaped frame (1304) is fixedly mounted on the top surface of the sealing plate (1310), wedge blocks (1305) are fixedly mounted on both ends of the top surface of the T-shaped frame (1304), and an extension rod (16) is fixedly connected to one side surface of the extension plate (14).

9. A laser welding device for processing a plate heat exchanger according to claim 8, characterized in that: The top surface of the sealing plate (1310) is fixedly connected to a second connecting pipe (1312), the outer surface of the second connecting pipe (1312) is fixedly installed with a fourth one-way valve (1313), the top end of the second connecting pipe (1312) is fixedly connected to a rectangular tube (1306), both ends of the rectangular tube (1306) are fixedly connected to an infusion tube (1307), and the infusion tube (1307) is a corrugated tube.

10. A laser welding device for processing a plate heat exchanger according to claim 9, characterized in that: The interior of the top frame (8) is a hollow structure, a plurality of air outlet nozzles (15) are fixedly connected to the top surface of the top frame (8), and one end of the infusion tube (1307) is fixedly connected to a side surface of the top frame (8).

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