Multi-station laser welding device for producing electric kettle

Abstract

The invention discloses a multi-station laser welding device for producing electric kettles, and relates to the technical field of laser welding of the electric kettles, the multi-station laser welding device comprises a machining table, supporting legs are fixedly mounted at the bottom of the machining table, a conveying belt is arranged in the middle of the machining table, and electric telescopic rods are symmetrically and rotationally arranged on the machining table; a first positioning assembly is arranged at the top end of the electric telescopic rod and can concentrically position the inner container and the base, a machining frame is fixedly mounted on the top face of the machining table, mounting stations are symmetrically and rotationally connected to the machining frame, telescopic motors are fixedly mounted at the circle centers of the mounting stations, and brazing devices are fixedly connected to the telescopic ends of the telescopic motors. And a first driven belt wheel is fixedly connected to the bottom face of the mounting station, and a first driving motor is fixedly mounted at the top of the machining frame. By means of the structure, welding machining between the inner container and the base and between the base and the heating wire can be completed at a time, operation is easy and convenient, and the machining efficiency of the electric kettle is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding of electric kettles, in particular to a multi-station laser welding device for producing electric kettles. Background Art

[0002] Electric kettles have been widely used in homes, offices and the catering industry. During the production process of electric kettles, the heating wire, base and inner pot need to be welded together in sequence. Brazing is used between the heating wire and the base, and laser welding is used between the base and the inner pot.

[0003] At present, the existing welding device needs to weld the heating wire and the base, and the base and the inner pot together in two steps. Among them, the welding operation steps are many and cumbersome, which affects the processing efficiency of the electric kettle.

[0004] Therefore, a multi-station laser welding device for producing electric kettles is proposed to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a multi-station laser welding device for producing electric kettles, which can complete the welding processing between the inner pot and the base, and the base and the heating wire at one time. The operation is simple and convenient, and the processing efficiency of the electric kettle is improved to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-station laser welding device for producing electric kettles, comprising a processing table, a leg fixedly installed at the bottom of the processing table, a conveyor belt arranged in the middle of the processing table, an electric telescopic rod symmetrically rotatably arranged on the processing table, a first positioning component arranged at the top of the electric telescopic rod, the first positioning component can concentrically position the inner pot and the base, a processing frame fixedly installed on the top surface of the processing table, an installation station symmetrically rotatably connected to the processing frame, a telescopic motor fixedly installed at the center of the installation station, a brazing device fixedly connected to the telescopic end of the telescopic motor, and a screwdriver fixedly connected to the bottom surface of the installation station. A driven pulley 1, a driving motor 1 is fixedly installed on the top of the processing frame, and a driving shaft is fixedly connected to the output end of the driving motor 1, and a driving pulley is fixedly sleeved on the upper and lower sides of the driving shaft, and a first transmission belt is sleeved on two driven pulleys 1 and one driving pulley, and a driven pulley 2 is fixedly sleeved on the outer surface of the electric telescopic rod, and a second transmission belt is sleeved on two driven pulleys 2 and another driving pulley, and an axle seat is fixedly installed on the back of the processing frame, and the driving shaft is rotatably connected to the axle seat, and two laser welders are symmetrically arranged on the front of the processing frame, and a second positioning assembly is arranged on the processing frame, and the second positioning assembly is used for pre-positioning the base and the heating wire.

[0009] Preferably, there are two conveyor belts, which are symmetrically arranged in the middle of the processing table for conveying the inner liner, and the electric telescopic rod and the first positioning assembly are located below the conveyor belts. Support strips are also symmetrically arranged in the middle of the processing table, and the support strips are located below the conveyor belts to support the conveyor belts.

[0010] Preferably, the diameters of the two driven pulleys 1 and the two driven pulleys 2 are the same, and the rotation center of the electric telescopic rod and the rotation center of the installation station are located on the same vertical axis.

[0011] Preferably, the processing table is also provided with a limiting strip adapted to the conveyor belt, and the limiting strip is used to limit the inner liner.

[0012] Preferably, the first positioning assembly includes a support plate, which is fixedly mounted on the top of the electric telescopic rod, and a driving motor 2 is fixedly mounted in the middle of the top surface of the support plate, and the output end of the driving motor 2 is fixedly connected to the driving rod, and a positioning circular frame is also fixedly mounted in the middle of the top surface of the support plate, and the driving rod is located at the center of the positioning circular frame, and the middle and top of the positioning circular frame are respectively slidably inserted with a first T-shaped rod and a second T-shaped rod, and the first T-shaped rod and the second T-shaped rod are rotatably connected with a positioning block, and the middle and top of the driving rod are evenly provided with push rods and connecting rods along the circumferential direction, and the push rods and connecting rods are each provided with two groups, and the ends of the two groups of push rods are respectively rotatably connected to one end of the two groups of connecting rods, and the other ends of the two groups of connecting rods are respectively rotatably connected to the first T-shaped rod and the second T-shaped rod.

[0013] Preferably, there are at least three first T-bars and second T-bars, the length of the first T-bar in the vertical direction is greater than the length of the second T-bar in the vertical direction, and the number of positioning blocks on the first T-bar is greater than the number of positioning blocks on the second T-bar.

[0014] Preferably, the second positioning assembly includes a telescopic cylinder and a slide rail fixedly mounted on the top surface of the processing frame, the slide rail is slidably connected to a rack, the telescopic end of the telescopic cylinder is fixedly connected to the rack, the processing frame is also symmetrically rotatably connected to a switching shaft, the top of the switching shaft is fixedly sleeved with a gear ring, the gear ring is meshed with the rack, the bottom of the switching shaft is symmetrically fixedly connected to a ring rail frame, the inner side of the ring rail frame is rotatably connected to a clamping circular frame, the top of the clamping circular frame is fixedly mounted with a center mold, the inner side of the clamping circular frame is symmetrically and movably plugged with a clamping plate, and a spring is provided between the clamping circular frame and the clamping plate.

[0015] Preferably, the cross-section of the clamping plate is stepped, and the top vertical surface of the clamping plate cooperates with the center mold to limit the heating wire, the bottom vertical surface of the clamping plate is used to clamp the fixed base, and the bottom of the clamping plate is provided with a slope.

[0016] Preferably, the ring rail frame, the clamping circular frame, the center mold and the clamping plate are each in four groups.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a multi-station laser welding device for producing electric kettles, which has the following beneficial effects:

[0019] 1. The present invention extends the electric telescopic rod and uses the support plate to lift the inner pot until the inner pot and the base are in contact. Secondly, the driving motor 2 drives the driving rod to rotate, and the push rod drives the first T-shaped rod and the second T-shaped rod to expand outward through the connecting rod respectively, and the inner pot and the base are concentrically positioned. Then, the telescopic motor drives the brazing machine to descend and press it on the heating wire to braze the base and the heating wire. At the same time, the driving motor 1 drives the brazing machine, the inner pot, the base, and the heating wire to rotate synchronously at the same speed, so that the laser welder can weld the connection between the inner pot and the base. Using the above structure, the welding process between the inner pot and the base, and the base and the heating wire can be completed at one time. The operation is simple and convenient, and the processing efficiency of the electric kettle is improved.

[0020] 2. The present invention can remove the workpiece from between the clamping plates by extending and retracting the electric telescopic rod. At the same time, the inner tank is transported by a conveyor belt, so that the workpiece can be transported in an assembly line manner, ensuring that the space on the processing table is tidy and tidy, which is convenient for welding processing. At the same time, there is no need to repeatedly take and put the workpiece, which further improves the processing efficiency of the electric kettle.

[0021] 3. The present invention has a higher positioning accuracy through the setting of the first positioning component compared to directly mounting it on a cylindrical positioning workpiece, and the positioning block is rotatably connected to the first T-bar and the second T-bar, which facilitates the installation and removal of the inner liner and the base, while maintaining a smaller contact area with the inner liner and the base to reduce wear.

[0022] 4. During the processing of the present invention, the base and heating wire required for the next processing can be installed on the clamping plate that has not been processed. After the processing is completed, the rack is engaged with the gear ring through the extension and retraction of the telescopic cylinder, driving the switching shaft to rotate, thereby rotating the installed base and heating wire to the bottom of the brazing device. Through the setting of multiple workstations, the assembly of the base and heating wire can be completed in advance, thereby improving the processing efficiency of the electric kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the main structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the processing table and the processing frame of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the inner tank, base and heating wire of the present invention;

[0026] Figure 4 It is a right view of the main structure of the present invention;

[0027] Figure 5 It is a three-dimensional structural diagram of the electric telescopic rod and the first positioning assembly of the present invention;

[0028] Figure 6 For the present invention Figure 5 A magnified view of the structure of the middle A area;

[0029] Figure 7 This is a structural diagram of the second positioning assembly of the present invention;

[0030] Figure 8 This is a structural diagram of the ring rail frame, the clamping round frame, the center mold, and the clamping plate of the present invention;

[0031] Fig. 9 This is a structural diagram of the clamping plate, spring, and inclined plane of the present invention.

[0032] Reference numerals:

[0033] 1. Processing table; 2. Outriggers; 3. Conveyor belt; 4. Electric telescopic rod; 6. Inner liner; 7. Base; 8. Heating wire; 9. Installation station; 10. Telescopic motor; 11. Brazing machine; 12. Driven pulley 1; 13. Driving motor 1; 14. Driving shaft; 15. Active pulley; 16. First transmission belt; 17. Driven pulley 2; 18. Second transmission belt; 19. Shaft seat; 20. Laser welder; 22. Processing frame; 23. Limiting strip; 24. Support strip;

[0034] 5. First positioning assembly; 51. Support plate; 52. Second driving motor; 53. Driving rod; 54. Positioning round frame; 55. First T-shaped rod; 56. Second T-shaped rod; 57. Positioning block; 58. Push rod; 59. Connecting rod;

[0035] 21. Second positioning assembly; 211. Telescopic cylinder; 212. Slide rail; 213. Rack; 214. Switching shaft; 215. Gear ring; 216. Ring rail frame; 217. Clamping round frame; 218. Center mold; 219. Clamping plate; 2110. Spring; 2111. Inclined surface. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0037] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0038] Example 1, please refer to Figures 1 to 5 As shown:

[0039] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a multi-station laser welding device for producing electric kettles, including a processing table 1, a support leg 2 is fixedly installed at the bottom of the processing table 1, a conveyor belt 3 is arranged in the middle of the processing table 1, an electric telescopic rod 4 is symmetrically rotatably arranged on the processing table 1, a first positioning component 5 is arranged on the top of the electric telescopic rod 4, and the first positioning component 5 can concentrically position the inner tank 6 and the base 7, a processing frame 22 is fixedly installed on the top surface of the processing table 1, and an installation station 9 is symmetrically rotatably connected to the processing frame 22, a telescopic motor 10 is fixedly installed at the center of the installation station 9, and a brazing device 11 is fixedly connected to the telescopic end of the telescopic motor 10, and a driven pulley 12 is fixedly connected to the bottom surface of the installation station 9, and a plurality of electric telescopic rods 4 are connected to the bottom surface of the processing table 1. A driving motor 13 is fixedly installed on the top of the work frame 22, and a driving shaft 14 is fixedly connected to the output end of the driving motor 13. A driving pulley 15 is fixedly sleeved on the upper and lower sides of the driving shaft 14. Two driven pulleys 12 and one driving pulley 15 are sleeved with a first transmission belt 16. A driven pulley 2 17 is fixedly sleeved on the outer surface of the electric telescopic rod 4. Two driven pulleys 2 17 and another driving pulley 15 are sleeved with a second transmission belt 18. A shaft seat 19 is fixedly installed on the back of the processing frame 22, and the driving shaft 14 is rotatably connected to the shaft seat 19. Two laser welders 20 are symmetrically arranged on the front of the processing frame 22. A second positioning assembly 21 is arranged on the processing frame 22, and the second positioning assembly 21 is used for pre-positioning the base 7 and the heating wire 8.

[0040] Specifically, the inner tank 6, the base 7 and the heating wire 8 can be positioned on the same vertical line through the first positioning component 5 and the second positioning component 21, and then the electric telescopic rod 4 is extended to lift the inner tank 6, so that the inner tank 6, the base 7 and the heating wire 8 can be assembled. Then, the telescopic motor 10 is extended to enable the brazing machine 11 to braze and weld the base 7 and the heating wire 8, and by driving the active pulley 15 to rotate, the active pulley 15 drives the driven pulley 1 12 and the driven pulley 2 17 to rotate synchronously and at the same speed through the first transmission belt 16 and the second transmission belt 18, so that the laser welder 20 can weld the connection between the inner tank 6 and the base 7, thereby completing the welding process between the inner tank 6 and the base 7, and the base 7 and the heating wire 8 at one time.

[0041] Among them, before welding, the inner pot 6 can be automatically conveyed to the bottom of the base 7 and the heating wire 8 by the conveyor belt 3. After the welding is completed, the electric telescopic rod 4 is extended and retracted, and the welded inner pot 6, base 7, and heating wire 8 can be removed and placed on the conveyor belt 3 through the first positioning component 5, and transported backward by the conveyor belt 3, thereby ensuring that the space on the processing table 1 is tidy and tidy, which is convenient for welding processing. At the same time, there is no need to repeatedly pick up and put down the workpiece, which improves the processing efficiency of the electric kettle.

[0042] Preferably, there are two conveyor belts 3, which are symmetrically arranged in the middle of the processing table 1 for conveying the inner liner 6, and the electric telescopic rod 4 and the first positioning assembly 5 are located below the conveyor belt 3. Support bars 24 are also symmetrically arranged in the middle of the processing table 1, and the support bars 24 are located below the conveyor belt 3 to support the conveyor belt 3.

[0043] Preferably, the diameters of the two driven pulleys 12 and the two driven pulleys 2 17 are the same, and the rotation center of the electric telescopic rod 4 and the rotation center of the installation station 9 are located on the same vertical axis.

[0044] Preferably, a limiting strip 23 adapted to the conveyor belt 3 is further provided on the processing table 1 , and the limiting strip 23 is used to limit the inner liner 6 .

[0045] For further example 2, please refer to Figures 5 and 6 As shown:

[0046] The first positioning assembly 5 includes a support plate 51, which is fixedly mounted on the top of the electric telescopic rod 4. A driving motor 2 52 is fixedly mounted in the middle of the top surface of the support plate 51. The output end of the driving motor 2 52 is fixedly connected to a driving rod 53. A positioning circular frame 54 is also fixedly mounted in the middle of the top surface of the support plate 51, and the driving rod 53 is located at the center of the positioning circular frame 54. The middle and top of the positioning circular frame 54 are respectively slidably inserted with a first T-shaped rod 55 and a second T-shaped rod 56. The first T-shaped rod 55 and the second T-shaped rod 56 are rotatably connected with a positioning block 57. The middle and top of the driving rod 53 are evenly provided with push rods 58 and connecting rods 59 along the circumferential direction. There are two groups of push rods 58 and connecting rods 59, and the ends of the two groups of push rods 58 are respectively rotatably connected to one end of the two groups of connecting rods 59, and the other ends of the two groups of connecting rods 59 are respectively rotatably connected to the first T-shaped rod 55 and the second T-shaped rod 56.

[0047] Among them, the inner liner 6 can be lifted by the support plate 51, and the inner liner 6 and the base 7 can be concentrically positioned by expanding outward along the diameter direction of the positioning circular frame 54 through the first T-bar 55 and the second T-bar 56. Compared with directly mounting on a cylindrical positioning workpiece, this method has higher precision, and the positioning block 57 is rotatably connected to the first T-bar 55 and the second T-bar 56, which facilitates the installation and removal of the inner liner 6 and the base 7, while maintaining a smaller contact area with the inner liner 6 and the base 7 to reduce wear.

[0048] Preferably, there are at least three first T-bars 55 and second T-bars 56, the length of the first T-bar 55 in the vertical direction is greater than the length of the second T-bar 56 in the vertical direction, and the number of positioning blocks 57 on the first T-bar 55 is greater than the number of positioning blocks 57 on the second T-bar 56.

[0049] For further example 3, please refer to Figures 7 to 9 As shown:

[0050] The second positioning assembly 21 includes a telescopic cylinder 211 and a slide rail 212 fixedly mounted on the top surface of the processing frame 22, a rack 213 is slidably connected to the slide rail 212, the telescopic end of the telescopic cylinder 211 is fixedly connected to the rack 213, and a switching shaft 214 is symmetrically rotatably connected to the processing frame 22. A gear ring 215 is fixedly sleeved on the top of the switching shaft 214, and the gear ring 215 is meshed with the rack 213. The bottom of the switching shaft 214 is symmetrically fixedly connected to a ring rail frame 216, and the inner side of the ring rail frame 216 is rotatably connected to a clamping circular frame 217, a center mold 218 is fixedly mounted on the top of the clamping circular frame 217, a clamping plate 219 is symmetrically and movably inserted on the inner side of the clamping circular frame 217, and a spring 2110 is arranged between the clamping circular frame 217 and the clamping plate 219.

[0051] Specifically, by extending and retracting the telescopic cylinder 211, the ring rail frame 216 can be driven to switch, so that the base 7 and the heating wire 8 can be pre-installed in the clamping circular frame 217, further improving the processing efficiency of the electric kettle. Through the elastic force of the spring 2110, the clamping plate 219 can clamp and fix the base 7, and there is friction between the ring rail frame 216 and the clamping circular frame 217, so that the clamping circular frame 217 can be stationary on the ring rail frame 216 without external force, and there is friction between the first T-bar 55, the second T-bar 56 and the positioning block 57, and this friction is sufficient to remove the welded workpiece from between the clamping plates 219.

[0052] Preferably, the cross-section of the clamping plate 219 is stepped, and the top vertical surface of the clamping plate 219 cooperates with the center mold 218 to limit the heating wire 8, the bottom vertical surface of the clamping plate 219 is used to clamp and fix the base 7, and the bottom of the clamping plate 219 is provided with a slope 2111.

[0053] The inclined surface 2111 facilitates the base 7 to be directly inserted from below and clamped and fixed between the clamping plates 219 .

[0054] Preferably, the ring rail frame 216, the clamping circular frame 217, the center mold 218, and the clamping plate 219 are each provided in four groups.

[0055] Everything in the above example works like this:

[0056] When in use, the inner tank 6 is transported to the bottom of the brazing device 11 by the conveyor belt 3, and the base 7 and the heating wire 8 are installed between the clamping plates 219. Then, the electric telescopic rod 4 is extended, and the inner tank 6 is lifted by the support plate 51 until the inner tank 6 and the base 7 are in contact. Next, the driving motor 2 52 drives the driving rod 53 to rotate, and the push rod 58 drives the first T-shaped rod 55 and the second T-shaped rod 56 to expand outward through the connecting rod 59, and the inner tank 6 and the base 7 are concentrically positioned. Then, the telescopic motor 10 drives the brazing device 11 to descend, press on the heating wire 8, and braze the base 7 and the heating wire 8. At the same time, the driving motor 1 1 The driving shaft 14 is driven to rotate, and the driving pulley 15 drives the driven pulley 1 12 and the driven pulley 2 17 to rotate respectively through the first transmission belt 16 and the second transmission belt 18. Since the brazing device 11 and the supporting plate 51 clamp the inner liner 6, the base 7 and the heating wire 8, the brazing device 11, the inner liner 6, the base 7 and the heating wire 8 can rotate synchronously at the same speed, so that the laser welder 20 can weld the connection between the inner liner 6 and the base 7. After the welding is completed, the workpiece can be removed from between the clamping plates 219 by contracting the electric telescopic rod 4, and placed on the conveyor belt 3 for backward transportation. The above operation is repeated to complete the welding processing of the subsequent workpieces.

[0057] During the processing, the base 7 and heating wire 8 required for the next processing can be installed on the clamping plate 219 that has not been processed. After the processing is completed, the rack 213 is engaged with the gear ring 215 through the extension and retraction of the telescopic cylinder 211, driving the switching shaft 214 to rotate, thereby rotating the installed base 7 and heating wire 8 to the bottom of the brazing device 11, so as to facilitate the next processing.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station laser welding device for producing electric kettles, characterized in that: The invention comprises a processing table (1), wherein a support leg (2) is fixedly mounted on the bottom of the processing table (1), a conveyor belt (3) is arranged in the middle of the processing table (1), an electric telescopic rod (4) is symmetrically rotatably mounted on the processing table (1), a first positioning assembly (5) is arranged at the top of the electric telescopic rod (4), and the first positioning assembly (5) can coaxially position an inner liner (6) and a base (7), a processing frame (22) is fixedly mounted on the top surface of the processing table (1), an installation station (9) is symmetrically rotatably connected to the processing frame (22), a telescopic motor (10) is fixedly mounted at the center of the installation station (9), a brazing device (11) is fixedly connected to the telescopic end of the telescopic motor (10), a driven pulley (12) is fixedly connected to the bottom surface of the installation station (9), a driving motor (13) is fixedly mounted on the top of the processing frame (22), and the processing frame (22) is fixedly mounted on the top surface of the processing table (1). The output end of the driving motor 1 (13) is fixedly connected to a driving shaft (14), and the upper and lower sides of the driving shaft (14) are fixedly sleeved with driving pulleys (15). The two driven pulleys 1 (12) and one driving pulley (15) are sleeved with a first transmission belt (16). The outer surface of the electric telescopic rod (4) is fixedly sleeved with a driven pulley 2 (17), and the two driven pulleys 2 (17) and the other driving pulley (15) are sleeved with a second transmission belt (18). The back of the processing frame (22) is fixedly installed with a shaft seat (19), and the driving shaft (14) is rotatably connected to the shaft seat (19). The front of the processing frame (22) is symmetrically provided with two laser welders (20), and the processing frame (22) is provided with a second positioning component (21), and the second positioning component (21) is used for pre-positioning the base (7) and the heating wire (8).

2. The multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: There are two conveyor belts (3), which are symmetrically arranged in the middle of the processing table (1) for conveying the inner liner (6), and the electric telescopic rod (4) and the first positioning component (5) are located below the conveyor belt (3). Support bars (24) are also symmetrically arranged in the middle of the processing table (1), and the support bars (24) are located below the conveyor belt (3) to support the conveyor belt (3).

3. The multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: The diameters of the two driven pulleys one (12) and the two driven pulleys two (17) are the same, and the rotation center of the electric telescopic rod (4) and the rotation center of the installation station (9) are located on the same vertical axis.

4. The multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: The processing table (1) is also provided with a limiting strip (23) adapted to the conveyor belt (3), and the limiting strip (23) is used to limit the position of the inner liner (6).

5. The multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: The first positioning assembly (5) comprises a support plate (51), the support plate (51) is fixedly mounted on the top of the electric telescopic rod (4), a second driving motor (52) is fixedly mounted in the middle of the top surface of the support plate (51), the output end of the second driving motor (52) is fixedly connected to a driving rod (53), a positioning circular frame (54) is also fixedly mounted in the middle of the top surface of the support plate (51), and the driving rod (53) is located at the center of the positioning circular frame (54), and the middle and top of the positioning circular frame (54) are respectively slidably plugged with a first T-shaped rod (53). 5) and a second T-shaped rod (56), the first T-shaped rod (55) and the second T-shaped rod (56) are rotatably connected with a positioning block (57), the middle part and the top of the driving rod (53) are evenly provided with push rods (58) and connecting rods (59) along the circumferential direction, the push rods (58) and the connecting rods (59) are each provided with two groups, and the ends of the two groups of push rods (58) are rotatably connected with one end of the two groups of connecting rods (59), and the other ends of the two groups of connecting rods (59) are rotatably connected with the first T-shaped rod (55) and the second T-shaped rod (56), respectively.

6. The multi-station laser welding device for producing electric kettles according to claim 5, characterized in that: There are at least three of the first T-shaped rod (55) and the second T-shaped rod (56); the length of the first T-shaped rod (55) in the vertical direction is greater than the length of the second T-shaped rod (56) in the vertical direction; and the number of the positioning blocks (57) on the first T-shaped rod (55) is greater than the number of the positioning blocks (57) on the second T-shaped rod (56).

7. The multi-station laser welding device for producing electric kettles according to claim 5, characterized in that: The second positioning assembly (21) comprises a telescopic cylinder (211) and a slide rail (212) fixedly mounted on the top surface of the processing frame (22); a rack (213) is slidably connected to the slide rail (212); the telescopic end of the telescopic cylinder (211) is fixedly connected to the rack (213); a switching shaft (214) is symmetrically rotatably connected to the processing frame (22); a gear ring (215) is fixedly sleeved on the top of the switching shaft (214); and the gear ring (215) is ) is meshed with a rack (213), the bottom of the switching shaft (214) is symmetrically fixedly connected to a ring rail frame (216), the inner side of the ring rail frame (216) is rotatably connected to a clamping circular frame (217), the top of the clamping circular frame (217) is fixedly installed with a center mold (218), the inner side of the clamping circular frame (217) is symmetrically and movably plugged with a clamping plate (219), and a spring (2110) is provided between the clamping circular frame (217) and the clamping plate (219).

8. The multi-station laser welding device for producing electric kettles according to claim 7, characterized in that: The cross section of the clamping plate (219) is stepped, and the top vertical surface of the clamping plate (219) cooperates with the center mold (218) to limit the heating wire (8), the bottom vertical surface of the clamping plate (219) is used to clamp and fix the base (7), and the bottom of the clamping plate (219) is provided with an inclined surface (2111).

9. The multi-station laser welding device for producing electric kettles according to claim 7, characterized in that: The ring rail frame (216), the clamping circular frame (217), the center mold (218) and the clamping plate (219) are all in four groups.

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