Vacuum laser welding device

Abstract

The invention discloses a vacuum laser welding device, and relates to the technical field of vacuum laser welding. The device comprises a base frame and a protection bin arranged on the upper end face of the base frame, and further comprises an adjusting rotating shaft rotationally connected to one side of the lower end of the protection bin; the welding driving assembly is arranged in the protection bin, and a rotating mechanism is arranged on one side in the protection bin; the laser welding assembly is fixed to the output end of the welding driving assembly; the base bin is fixed to the lower end face of the base frame, and a lifting assembly is arranged in the base bin; the vacuum pump is arranged in the base bin, and a vacuum port is fixed to the output end of the vacuum pump. According to the welding device, the position of the protection bin can be adjusted and controlled by arranging the adjusting rotating shaft, so that the protection bin can be blocked through cooperation of a sealing clamping groove and a sealing convex block, and then the inclination angle of the welding driving assembly is adjusted through the rotating mechanism; therefore, the inclination angle of the laser welding assembly can be controlled according to different specifications and sizes of workpieces.

Description

Technical Field

[0001] The present invention belongs to the technical field of vacuum laser welding, and particularly relates to a vacuum laser welding device. Background Art

[0002] Vacuum brazing means that the workpiece is heated inside a vacuum chamber, mainly used for welding products with high quality requirements and materials prone to oxidation. The vacuum brazing furnace includes a pressure vessel with a cylindrical side wall and a door, and the size and position of the door are designed to close one end of the cylindrical side wall. The workpiece processing system is installed on the door of the pressure vessel to support metal workpieces for heat treatment or brazing. The workpiece processing system includes a device for rotating the workpiece during the processing. The vacuum system can be connected to the workpiece to make the pressure inside the workpiece lower than the atmospheric pressure during brazing.

[0003] Laser welding is a welding method that uses a focused laser beam as the energy to bombard the heat generated by the welded part. It is mainly used for welding metal workpieces with high precision and high sealing requirements, such as aerospace precision components, medical devices, etc. However, during daily use, workpieces of different sizes and shapes often appear, and the existing vacuum laser welding device is difficult to control the welding inclination angle according to the differences of the workpieces, and the flexibility of workpiece clamping and welding path adjustment is insufficient, making it difficult to quickly clamp and limit the workpiece, resulting in a great reduction in the applicable range of the laser welding device. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a vacuum laser welding device, which can effectively solve the problems of the prior art.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a vacuum laser welding device, including a base frame and a protective chamber provided on the upper end surface of the base frame, and further includes: An adjustment rotating shaft, rotatably connected to one side of the lower end of the protective chamber, and the cross-section of the protective chamber is a semi-circular structure and is rotatably connected to the base frame; A welding drive assembly, provided inside the protective chamber, a rotating mechanism is provided on one side inside the protective chamber, and one end of the rotating mechanism is connected to the welding drive assembly; A laser welding assembly, fixed to the output end of the welding drive assembly; A base chamber, fixed to the lower end surface of the base frame, a lifting assembly is provided inside the base chamber, and a locking assembly is provided at the upper end of the lifting assembly for clamping and limiting the workpiece; A vacuum pump, provided inside the base chamber, a vacuum port is fixed to the output end of the vacuum pump, and the vacuum port is located on the left and right sides of the upper end surface of the base frame.

[0006] Furthermore, a protective ring is fixed on the upper end surface of the base frame, and the cross-section of the protective ring is in a "mouth" shape structure. A sealing groove is opened on the upper end surface of the protective ring, and a carrier frame is fixed at the central position of the upper end surface of the base frame.

[0007] Furthermore, a sealing protrusion is fixed on the lower end of the inner wall of the protective chamber, and the sealing protrusion is slidably embedded in the sealing groove. An observation chamber is arranged on the front side of the protective chamber, and the center of the observation chamber is made of a transparent material. A handle part is fixed on the side of the protective chamber away from the adjusting rotating shaft.

[0008] Furthermore, the rotating mechanism includes a servo motor, a worm rod, a worm gear, a connecting rod, a driving disc and a bearing plate. The servo motor is fixed on one side of the protective chamber, the worm rod is fixed on the output end of the servo motor, the worm gear is meshed and connected to the lower end of the worm rod, the connecting rod is fixed on one end of the worm gear, and the connecting rod is rotatably connected to the protective chamber. The driving disc is fixed on the end of the connecting rod away from the worm gear, and the bearing plate is fixed on one end of the driving disc.

[0009] Furthermore, positioning sliders are symmetrically fixed on the upper end surface of the bearing plate, and the cross-section of the positioning slider is in a "T" shape structure. A positioning sliding groove is opened on the inner wall of the protective chamber, and the positioning slider swings left and right along the inside of the positioning sliding groove for adjustment.

[0010] Furthermore, the welding driving assembly includes a disassembly slider, a disassembly sliding groove and a positioning bolt. The disassembly slider is fixed on the upper end surface of the welding driving assembly, the disassembly sliding groove is opened on the inner side of the bearing plate, the positioning bolts are symmetrically arranged on the left and right sides of the disassembly slider, and the positioning bolts pass through the disassembly slider and are connected to the bearing plate.

[0011] Furthermore, the lifting assembly includes a driving motor, a connecting lead screw, a lifting platform, lifting rods, clamping plates and clamping sliding grooves. The driving motor is fixed at the central position inside the base chamber, the connecting lead screw is fixed on the output end of the driving motor, the lifting platform is threadedly connected to the outer surface of the connecting lead screw, the lifting rods are symmetrically fixed on the left and right sides of the lifting platform, and the cross-section of the lifting rod is a quadrilateral structure and penetrates through the upper end surface of the carrier frame. The clamping plates are fixed on the upper ends of the lifting rods, and the clamping sliding grooves are opened on the upper end surfaces of the clamping plates.

[0012] Furthermore, the locking assembly includes a locking plate, a locking collar, a driving rack, a driving gear and a driving knob. The locking plate is slidably clamped inside the clamping sliding groove, the locking collar is fixed on one end of the locking plate, the driving rack is fixed on one side of the locking plate, the driving gear is meshed and connected to the lower end of the driving rack, and one side of the driving gear is rotatably connected to one end of the clamping plate. The driving knob is fixed on one end of the driving gear.

[0013] Furthermore, the cross-section of the locking plate is a "T" - shaped structure and it is slidably connected along the inside of the clamping plate. The locking snap ring is fixed at one end of the locking plate, and the cross-section of the locking snap ring is an "L" - shaped structure.

[0014] Furthermore, the vacuum pump includes an elastic tube and a guiding tube. The elastic tube is fixed at the output end of the vacuum pump, the guiding tube is connected to the upper end of the elastic tube, and the guiding tube is connected to the vacuum port.

[0015] The present invention has the following beneficial effects: By setting the adjusting rotating shaft in the present invention, the position of the protective chamber can be regulated. Then, through the cooperation of the sealing slot and the sealing convex block, the protective chamber can be sealed. After that, the inclination angle of the welding driving assembly can be adjusted through the rotating mechanism, so that the inclination angle of the laser welding assembly can be controlled according to different specifications and dimensions of the workpiece, thereby further improving the applicable range of the equipment. Then, the driving motor and the connecting lead screw in the base chamber can drive the clamping plate to slide up and down for adjustment, and can cooperate with the locking assembly to quickly lock the workpiece. Since the position of the locking plate is adjusted, it can be adjusted according to different specifications and dimensions of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a top view schematic diagram of the vacuum laser welding device of the present invention; Figure 2 It is a bottom view schematic diagram of the vacuum laser welding device of the present invention; Figure 3 It is a rear view schematic diagram of the vacuum laser welding device of the present invention; Figure 4 It is a top view schematic diagram of the base frame of the present invention; Figure 5 It is a bottom view schematic diagram of the protective chamber of the present invention; Figure 6 It is a top view schematic diagram of the rotating mechanism of the present invention; Figure 7 It is a bottom view schematic diagram of the rotating mechanism of the present invention; Figure 8 It is an internal view schematic diagram of the base chamber of the present invention; Figure 9 It is a top view schematic diagram of the locking assembly of the present invention.

[0018] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Base frame; 101. Protective ring; 102. Sealing card slot; 103. Carrier frame; 2. Protective chamber; 201. Adjusting rotating shaft; 202. Sealing convex block; 203. Observation chamber; 204. Handle part; 3. Rotating mechanism; 301. Servo motor; 302. Worm rod; 303. Worm gear; 304. Connecting rod; 305. Driving disk; 306. Carrier plate; 307. Positioning slider; 308. Positioning chute; 4. Welding driving assembly; 401. Demounting slider; 402. Positioning chute; 403. Positioning bolt; 5. Laser welding assembly; 6. Base chamber; 601. Driving motor; 602. Connecting lead screw; 603. Lifting platform; 604. Lifting rod; 605. Clamping plate; 606. Clamping chute; 7. Locking assembly; 701. Locking plate; 702. Locking snap ring; 703. Driving rack; 704. Driving gear; 705. Driving button; 8. Vacuum pump; 801. Elastic tube; 802. Guide tube; 803. Vacuum port. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Please refer to Figures 1-9 As shown, the present invention is a vacuum laser welding device, including a base frame 1 and a protective chamber 2 provided on the upper end surface of the base frame 1, and further includes: Adjusting rotating shaft 201 is rotatably connected to one side of the lower end of the protection chamber 2, and the cross-section of the protection chamber 2 is a semi-circular structure and is rotatably connected to the base frame 1; a protection ring 101 is fixed on the upper end surface of the base frame 1, and the cross-section of the protection ring 101 is in a "mouth" shape structure. A sealing groove 102 is provided on the upper end surface of the protection ring 101. A bearing frame 103 is fixed at the central position of the upper end surface of the base frame 1. The protection chamber 2 can be protected by the provided protection ring 101. Then, the provided sealing groove 102 can be engaged with the sealing protrusion 202 on the inner wall of the protection chamber 2, which can prevent the sealing protrusion 202 from shifting and shaking. Since the sealing protrusion 202 can be embedded in the sealing groove 102, the sealing effect between the protection chamber 2 and the base frame 1 can be ensured; a sealing protrusion 202 is fixed on the lower end of the inner wall of the protection chamber 2, and the sealing protrusion 202 is slidably embedded in the sealing groove 102. An observation chamber 203 is provided on the front side of the protection chamber 2, and the center of the observation chamber 203 is made of transparent material. A handle member 204 is fixed on the side of the protection chamber 2 away from the adjusting rotating shaft 201. Since the center of the provided observation chamber 203 is made of transparent material, it is convenient for the staff to observe the welding condition of the workpiece. Then, the provided handle member 204 can cooperate with the adjusting rotating shaft 201 to open the protection chamber 2, so that it is convenient for the staff to disassemble the workpiece, etc. The semi-circular protection chamber 2 and the sealing groove 102 are double-sealed, and the vacuum maintenance time ≥ 2h; The welding drive assembly 4 is arranged inside the protective chamber 2. A rotating mechanism 3 is arranged on one side inside the protective chamber 2, and one end of the rotating mechanism 3 is connected to the welding drive assembly 4. The rotating mechanism 3 includes a servo motor 301, a worm member 302, a worm wheel member 303, a connecting rod 304, a driving disk 305 and a bearing plate 306. The servo motor 301 is fixed on one side of the protective chamber 2, the worm member 302 is fixed on the output end of the servo motor 301, the worm wheel member 303 is meshedly connected to the lower end of the worm member 302, the connecting rod 304 is fixed on one end of the worm wheel member 303, and the connecting rod 304 is fixed on one end of the worm wheel member 303. 04 is rotatably connected to the protective bin 2, the driving disk 305 is fixed to one end of the connecting rod 304 away from the worm gear 303, and the carrying plate 306 is fixed to one end of the driving disk 305. The servo motor 301 is arranged to drive the worm 302 to rotate, and when the worm 302 rotates, the worm gear 303 can be driven to rotate. When the worm gear 303 rotates, the driving disk 305 can be driven to rotate through the connecting rod 304, so as to drive the carrying plate 306 to swing along the inner side of the protective bin 2; the upper end surface of the carrying plate 306 is symmetrically fixed with a positioning slider 307, and the positioning slider 307 is fixed to the upper end surface of the carrying plate 306. The cross section of the positioning slider 307 is a "T"-shaped structure, and a positioning slot 308 is provided on the inner wall of the protective chamber 2, and the positioning slider 307 is swung left and right along the inside of the positioning slot 308 for adjustment. The positioning slider 307 can be slidably engaged with the inner side of the positioning slot 308, so as to limit the position of the load-bearing plate 306, thereby avoiding the load-bearing plate 306 from deflecting and shaking, thereby ensuring the stability of the load-bearing plate 306; the welding drive assembly 4 includes a disassembly slider 401, a disassembly slot 402 and a positioning bolt 403, and the disassembly slider 401 is fixed to the welding drive On the upper end surface of the assembly 4, the disassembly slot 402 is opened on the inner side of the bearing plate 306, and the positioning bolts 403 are symmetrically arranged on the left and right sides of the disassembly slider 401, and the positioning bolts 403 pass through the disassembly slider 401 and are connected to the bearing plate 306. The disassembly slider 401 can be slidably engaged with the inner side of the disassembly slot 402, so that the welding drive assembly 4 can be quickly installed and disassembled, so as to facilitate subsequent maintenance and maintenance. Then, the positioning bolts 403 pass through the disassembly slider 401 and are connected to the bearing plate 306, which can ensure the stability of the bearing plate 306. The laser welding assembly 5 is fixed to the output end of the welding drive assembly 4; the base bin 6 is fixed to the lower end surface of the base frame 1. An elevating assembly is arranged inside the base bin 6. A locking assembly 7 is arranged at the upper end of the elevating assembly for clamping and restricting the workpiece. The elevating assembly includes a driving motor 601, a connecting lead screw 602, an elevating platform 603, elevating rods 604, a clamping plate 605 and a clamping chute 606. The driving motor 601 is fixed at the central position inside the base bin 6. The connecting lead screw 602 is fixed to the output end of the driving motor 601. The elevating platform 603 is threadedly connected to the outer surface of the connecting lead screw 602. The elevating rods 604 are symmetrically fixed to the left and right sides of the elevating platform 603. The cross-section of the elevating rod 604 is a quadrilateral structure and penetrates through the upper end surface of the carrier frame 103. The clamping plate 605 is fixed to the upper end surface of the elevating rod 604. The clamping chute 606 is opened on the upper end surface of the clamping plate 605. By setting the driving motor 601, the connecting lead screw 602 can be driven to rotate. When the connecting lead screw 602 rotates, the elevating platform 603 can be driven to slide up and down. When the elevating platform 603 is adjusted downward, the clamping plate 605 can be pulled downward through the elevating rod 604, so as to cooperate with the locking assembly 7 to clamp the workpiece. The locking assembly 7 includes a locking plate 701, a locking collar 702, a driving rack 703, a driving gear 704 and a driving knob 705. The locking plate 701 is slidably clamped inside the clamping chute 606. The locking collar 702 is fixed to one end of the locking plate 701. The driving rack 703 is fixed to one side of the locking plate 701. The driving gear 704 is meshed and connected to the lower end of the driving rack 703. One side of the driving gear 704 is rotatably connected to one end of the clamping plate 605. The driving knob 705 is fixed to one end of the driving gear 704. By setting the clamping chute 606, the locking plate 701 can be clamped and restricted, which can prevent the locking plate 701 from shifting and shaking. The driving knob 705 can drive the driving gear 704 to rotate. When the driving gear 704 rotates, it can be meshed with the driving rack 703, and then the locking plate 701 can be driven to slide left and right, so as to lock and restrict the workpiece through the locking collar 702. The locking collar 702 is adapted to the special-shaped workpiece, and the clamping time < 30 s. The cross-section of the locking plate 701 is a "T" - shaped structure and slides inside the clamping plate 605. The locking collar 702 is fixed to one end of the locking plate 701, and the cross-section of the locking collar 702 is an "L" - shaped structure. By setting the locking collar 702 to be an "L" - shaped structure, it can be clamped with the side of the workpiece, so as to lock the workpiece and prevent the workpiece from shifting and shaking. A vacuum pump 8 is arranged inside the base bin 6. A vacuum port 803 is fixed at the output end of the vacuum pump 8, and the vacuum port 803 is located on the left and right sides of the upper end face of the base frame 1. The vacuum pump 8 includes an elastic tube 801 and a guiding tube 802. The elastic tube 801 is fixed at the output end of the vacuum pump 8. The guiding tube 802 is connected to the upper end of the elastic tube 801, and the guiding tube 802 is connected to the vacuum port 803. Through the arranged vacuum pump 8, the air in the protective bin 2 can be pumped out through the guiding tube 802 and the vacuum port 803, and cooperate with the rotating mechanism 3, the welding driving assembly 4 and the laser welding assembly 5, so as to be able to weld the workpiece. Since the laser welding assembly 5 supports X / Y / Z three-axis linkage, the path programming error ≤ 0.1 mm.

[0021] Working principle: First, place the base frame (1) at the specified position. Pull the handle 204, and the protective bin 2 can be opened by adjusting the rotating shaft 201. Then, place the workpiece on the upper end of the carrier 103. Then, turn the driving button 705. The arranged driving button 705 can drive the driving gear 704 to rotate. When the driving gear 704 rotates, it can mesh with the driving rack 703, and then drive the locking plate 701 to slide left and right, so as to be able to lock and limit the workpiece through the locking collar 702. The locking collar 702 is adapted to special-shaped workpieces, and the clamping time < 30 s. Since the locking collar 702 is an "L"-shaped structure, it can be perpendicular to the side of the workpiece. Then, turn on the driving motor 601. When the driving motor 601 is turned on, the connecting lead screw 602 can be driven to rotate, so as to be able to pull the lifting platform 603 downward, and drive the lifting platform 603 to slide up and down for adjustment. When the lifting platform 603 is adjusted downward, the clamping plate 605 can be pulled downward through the lifting rod 604, so as to be able to make the locking collar 702 be clamped with the workpiece, and thus the workpiece can be locked; Secondly, close the protective bin 2 by adjusting the rotating shaft 201. The arranged sealing groove 102 can be engaged with the sealing protrusion 202 on the inner wall of the protective bin 2, which can prevent the sealing protrusion 202 from shifting and shaking. Since the sealing protrusion 202 can be embedded in the sealing groove 102, the sealing effect between the protective bin 2 and the base frame 1 can be ensured. Then, turn on the vacuum pump 8. The arranged vacuum pump 8 can pump out the air in the protective bin 2 through the guiding tube 802 and the vacuum port 803, so that the protective bin 2 is in a vacuum state. Since the center of the observation bin 203 is made of transparent material, it is convenient for the staff to observe the welding situation of the workpiece; Finally, turn on the welding drive assembly 4. The provided welding drive assembly 4 can adjust the position of the laser welding assembly 5, thereby enabling welding of the workpiece. Then, turn on the servo motor 301. When the worm rod 302 rotates, it can drive the worm gear 303 to rotate. When the worm gear 303 rotates, it can drive the drive disk 305 to rotate through the connecting rod 304, thereby driving the bearing plate 306 to swing along the inside of the protective chamber 2. Since the workpiece can be welded, and the laser welding assembly 5 supports X / Y / Z three-axis linkage with a path programming error ≤ 0.1 mm. When the bearing plate 306 swings left and right, the provided positioning slider 307 can slide and be clamped inside the positioning chute 308, thus limiting the position of the bearing plate 306 and preventing the bearing plate 306 from shifting and shaking, thereby ensuring the stability of the bearing plate 306. At the same time, the provided disassembly slider 401 can slide and be clamped inside the disassembly chute 402, enabling quick installation and disassembly of the welding drive assembly 4 for subsequent maintenance and servicing. Then, the provided positioning bolt 403 passes through the disassembly slider 401 and is connected to the bearing plate 306, ensuring the stability of the bearing plate 306.

[0022] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, or improvement made shall fall within the protection scope of the present invention.

Claims

1. A vacuum laser welding device, comprising a base frame (1) and a protective chamber (2) arranged on the upper end surface of the base frame (1), characterized in that include: An adjusting shaft (201) is rotatably connected to one side of the lower end of the protection bin (2); the protection bin (2) has a semicircular cross-section and is rotatably connected to the base frame (1); A welding drive assembly (4) is arranged inside the protective chamber (2); a rotating mechanism (3) is arranged on one side inside the protective chamber (2), and one end of the rotating mechanism (3) is connected to the welding drive assembly (4); A laser welding component (5) is fixed to the output end of the welding drive component (4); A base bin (6) is fixed to the lower end surface of the base frame (1); a lifting assembly is provided inside the base bin (6); a locking assembly (7) is provided at the upper end of the lifting assembly for clamping and limiting the workpiece; The vacuum pump (8) is arranged inside the base chamber (6); a vacuum port (803) is fixed to the output end of the vacuum pump (8), and the vacuum port (803) is located on the left and right sides of the upper end surface of the base frame (1).

2. The vacuum laser welding device according to claim 1, characterized in that: A protective ring (101) is fixed to the upper end surface of the base frame (1), and the cross section of the protective ring (101) is in a "mouth"-shaped structure. A sealing groove (102) is provided on the upper end surface of the protective ring (101), and a bearing frame (103) is fixed at the central position of the upper end surface of the base frame (1).

3. The vacuum laser welding device according to claim 2, characterized in that: A sealing protrusion (202) is fixed to the lower end of the inner wall of the protective chamber (2), and the sealing protrusion (202) is slidably embedded in the sealing slot (102). An observation chamber (203) is provided on the front side of the protective chamber (2), and the center of the observation chamber (203) is made of a transparent material. A handle (204) is fixed to the side of the protective chamber (2) away from the adjustment shaft (201).

4. The vacuum laser welding device according to claim 1, characterized in that: The rotating mechanism (3) comprises a servo motor (301), a worm member (302), a worm wheel member (303), a connecting rod (304), a driving disc (305) and a bearing plate (306); the servo motor (301) is fixed to one side of the protective bin (2); the worm member (302) is fixed to an output end of the servo motor (301); the worm wheel member (303) is meshingly connected to the lower end of the worm member (302); the connecting rod (304) is fixed to one end of the worm wheel member (303), and the connecting rod (304) is rotatably connected to the protective bin (2); the driving disc (305) is fixed to one end of the connecting rod (304) away from the worm wheel member (303); and the bearing plate (306) is fixed to one end of the driving disc (305).

5. The vacuum laser welding device according to claim 4, characterized in that: A positioning slide block (307) is symmetrically fixed to the upper end surface of the carrier plate (306), and the cross section of the positioning slide block (307) is a "T"-shaped structure. A positioning slide groove (308) is provided on the inner wall of the protective bin (2), and the positioning slide block (307) is swung left and right along the inside of the positioning slide groove (308) for adjustment.

6. The vacuum laser welding device according to claim 4, characterized in that: The welding drive assembly (4) comprises a disassembly slider (401), a disassembly chute (402) and a positioning bolt (403); the disassembly slider (401) is fixed to the upper end surface of the welding drive assembly (4); the disassembly chute (402) is arranged on the inner side of the bearing plate (306); the positioning bolt (403) is symmetrically arranged on the left and right sides of the disassembly slider (401); and the positioning bolt (403) passes through the disassembly slider (401) and is connected to the bearing plate (306).

7. The vacuum laser welding device according to claim 2, characterized in that: The lifting assembly comprises a driving motor (601), a connecting screw rod (602), a lifting platform (603), a lifting rod (604), a clamping plate (605) and a clamping slide groove (606); the driving motor (601) is fixed at the inner central position of the base bin (6); the connecting screw rod (602) is fixed at the output end of the driving motor (601); the lifting platform (603) is threadedly connected to the outer surface of the connecting screw rod (602); the lifting rod (604) is symmetrically fixed to the left and right sides of the lifting platform (603); the cross section of the lifting rod (604) is a quadrilateral structure and penetrates the upper end surface of the supporting frame (103); the clamping plate (605) is fixed to the upper end surface of the lifting rod (604); and the clamping slide groove (606) is provided on the upper end surface of the clamping plate (605).

8. The vacuum laser welding device according to claim 1, characterized in that: The locking assembly (7) comprises a locking plate (701), a locking snap ring (702), a driving rack (703), a driving gear (704) and a driving button (705); the locking plate (701) is slidably engaged with the inner side of the clamping groove (606); the locking snap ring (702) is fixed to one end of the locking plate (701); the driving rack (703) is fixed to one side of the locking plate (701); the driving gear (704) is meshedly connected to the lower end of the driving rack (703); one side of the driving gear (704) is rotatably connected to one end of the clamping plate (605); and the driving button (705) is fixed to one end of the driving gear (704).

9. The vacuum laser welding device according to claim 8, characterized in that: The locking plate (701) has a cross-section of a "T"-shaped structure and is slidably connected along the inside of the clamping plate (605). The locking snap ring (702) is fixed to one end of the locking plate (701), and the cross-section of the locking snap ring (702) is an "L"-shaped structure.

10. The vacuum laser welding device according to claim 1, characterized in that: The vacuum pump (8) comprises an elastic tube (801) and a guide tube (802); the elastic tube (801) is fixed to the output end of the vacuum pump (8); the guide tube (802) is connected to the upper end of the elastic tube (801); and the guide tube (802) is connected to the vacuum port (803).

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