A multi-station laser welding device for producing electric kettles

Abstract

The present invention relates to the field of electric kettle processing and discloses a multi-station laser welding device for producing electric kettles, comprising a component fixing mechanism located on a built-in processing mechanism, which cooperates with an air duct to fix the laser welding structure; a welding fixing mechanism located on the component fixing mechanism, which cooperates with a suspension bracket, a side bracket, and a transmission shaft to laser weld the lid and the connecting portion of the kettle body. Through a sophisticated mechanical and electronic control system, the welding position and welding strength can be precisely adjusted to suit different working conditions and requirements. This includes the use of a linkage mechanism and a multi-station table design. The use of water vapor cooling and gas adsorption technology not only provides additional cooling effect for the welded parts, but also reduces resource waste and environmental pollution by capturing and reusing water vapor and gas generated in the system. The use of an activated carbon filter plate reduces the emission of harmful substances, thus meeting environmental protection requirements.

Description

Technical Field

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

[0002] The working principle of an electric kettle is that the steam generated by boiling water deforms the bimetallic strip of the steam temperature sensor. This deformation, through the lever principle, pushes the power switch to cut off the power. Since the power is off, it cannot be reset, so the kettle will not automatically reheat after the power is cut off. Electric kettles use intelligent steam sensor temperature control, automatically cut off the power when the water boils, and prevent dry-boiling. To meet the needs of daily life, electric kettles are now developing multifunctional features such as leak prevention, scalding prevention, and water lock. Electric kettles feature fast heating, excellent heat retention, strong filtration functions, and a wide variety of styles.

[0003] During the processing of electric kettles, laser welding equipment is required to weld and seal the surface. Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Traditional laser welding equipment requires manual repositioning or waiting for one welding process to complete before starting the next. The high temperatures generated by laser welding can also cause the equipment to overheat. High temperatures can cause equipment overheating. The high-energy laser beam produced by the laser generator is used to melt the material to achieve precise connections between metals or other materials. However, this process generates a large amount of heat, not only in the welding area, but also in key components of the laser generator, such as the laser diode, optical fiber output, and laser crystal, which are very sensitive to temperature. High temperatures can cause these components to degrade in performance or even damage them in severe cases, shortening the laser generator's lifespan and increasing maintenance costs. It can also cause the laser generator itself to overheat. Furthermore, manual repositioning or the entire process must be completed at a single station, which is inefficient. During the laser welding process, the laser beam acts on the metal material of the electric kettle, causing the material's surface to rapidly heat up to the evaporation point. This high temperature not only melts the metal but also may evaporate certain elements in the metal or coating, generating harmful gases. For example, when welding galvanized steel, zinc vapor may be generated. After cooling, this vapor will form fine zinc oxide particles, which we often call "welding fume", thereby increasing environmental pollution. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a multi-station laser welding device for producing electric kettles, which solves the problems of low efficiency of traditional equipment, easy overheating of the equipment, and generation of harmful gases at high temperatures when welding electric kettles using traditional laser welding technology, which increases maintenance costs and environmental pollution.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A multi-station laser welding device for producing electric kettles, comprising:

[0006] Stable frame, used to support the structure of the electric kettle laser welding equipment;

[0007] The built-in processing mechanism is located on a stable frame and is used to enclose the laser welding structure;

[0008] The steam cooling mechanism is located on a stable frame and is used in conjunction with the contact tank and the heating tank to generate steam for cooling and adsorption of welding exhaust gas;

[0009] The multi-station drive mechanism is located on the built-in processing mechanism, cooperates with the contact tank and is used to carry multiple electric kettles to be processed;

[0010] The component fixing mechanism is located on the built-in processing mechanism and is used to fix the laser welding structure in conjunction with the air supply pipe;

[0011] The welding fixing mechanism is located on the component fixing mechanism and is used to perform laser welding on the connection part between the lid and the body of the electric kettle in conjunction with the suspension frame, the side frame and the transmission shaft column;

[0012] The welding cooling mechanism is located on the welding fixing mechanism and cooperates with the limiting slide rail, the rotating sleeve, the multi-station table and the laser generator to dissipate heat for the laser welding structure.

[0013] Preferably, the built-in processing mechanism is arranged at the upper part of the stabilizing frame, the steam cooling mechanism is arranged at the lower part of the stabilizing frame, the multi-station driving mechanism is arranged inside the built-in processing mechanism and above the displacement steam cooling mechanism, the component fixing mechanism is arranged on the built-in processing mechanism, the welding fixing mechanism is arranged on the component fixing mechanism, and the welding cooling mechanism is arranged between the component fixing mechanism and the welding fixing mechanism.

[0014] Preferably, the built-in processing mechanism includes a contact tank, a top cover is fixedly connected to the top of the contact tank, an exhaust pipe is fixedly connected to the top of the top cover, the inner side wall of the contact tank is provided with a plurality of groups of guide grooves with uniform circumferential distribution, the air supply pipe is fixedly connected to the bottom output end of the exhaust pipe, an exhaust turbofan is fixedly connected to the inner side wall of the exhaust pipe, the air supply pipe extends to the interior of the contact tank, the side wall of the air supply pipe is provided with a plurality of groups of exhaust grooves with uniform circumferential distribution, the top input end of the guide groove extends to the top cover, the bottom output end of the guide groove extends to the heating tank, and the bottom output port of the top cover is provided with an activated carbon filter plate.

[0015] Preferably, the steam cooling mechanism includes a heating tank, which is fixedly connected to the bottom of the contact tank, and a component cabin is provided at the lower part of the interior of the heating tank, and the side wall of the component cabin is provided with multiple groups of heat dissipation holes with uniform circumferential distribution, and a central heat-conducting column is fixedly connected to the top of the component cabin, and multiple groups of heat-conducting rings with uniform longitudinal arrangement are fixedly connected to the side wall of the central heat-conducting column, and a heating output element is fixedly connected to the interior of the component cabin, and the top output end of the heating output element is fixedly connected to the central heat-conducting column, and the side wall of the component cabin is provided with multiple groups of heat dissipation holes with uniform circumferential distribution, and the side wall of the heating tank is slidably connected to a water injection box, and the outer end of the water injection box is fixedly connected to a sealing arc plate, and the sealing arc plate is located outside the heating tank.

[0016] Preferably, the multi-station driving mechanism includes an annular slide and a cross fixing ring, the annular slide is fixedly connected to the inner side wall of the contact tank and is located above the steam cooling mechanism, the inner side wall of the annular slide is rotatably connected to a sliding disk, the sliding disk is provided with a plurality of groups of dredging grooves evenly distributed circumferentially, the top of the sliding disk is fixedly connected to a plurality of groups of blank cylinders evenly distributed circumferentially, the bottom rotating shaft of the blank cylinder is fixedly connected to a linkage ratchet, the cross fixing ring is fixedly connected to the inner side wall of the contact tank and is located below the annular slide, the center of the cross fixing ring is fixedly connected to a sealing tank, the inside of the sealing tank is fixedly connected to an output motor, the top output end of the output motor is fixedly connected to an output wheel, the side wall of the output wheel is fixedly connected to an arc block, and the transmission shaft is fixedly connected to the top center of the blank cylinder.

[0017] Preferably, the element fixing mechanism includes a suspension bracket, the suspension bracket is fixedly connected to the bottom of the air duct, the side bracket is fixedly connected to the side of the suspension bracket away from the air duct, and the limiting slide rail is fixedly connected to the bottom of the side bracket.

[0018] Preferably, the welding fixing mechanism includes a fixed rod, a rotating sleeve and a belt transmission component. The fixed rod is rotatably connected to the fixed rod and is located on the side of the suspension frame away from the air duct. The rotating sleeve is rotatably connected to the outside of the fixed rod. The belt transmission component is arranged on the top of the fixed rod. The output pulley part of the fixed rod is connected to the rotating sleeve. The bottom end of the fixed rod is fixedly connected to the welding head. The bottom end of the rotating sleeve is fixedly connected to the multi-station table, and the multi-station table is rotatably connected to the outside of the fixed rod.

[0019] Preferably, the welding cooling mechanism includes a covering sleeve and a linkage ring, the covering sleeve is slidably connected to the limiting slide rail, the covering sleeve is fixedly connected to the inside of the covering sleeve with evenly arranged heat dissipation bent pipes, a reset spring is provided between the covering sleeve and the inner side wall of the side frame, the linkage ring is fixedly connected to the top of the multi-station table, the outer ring part of the side wall of the linkage ring is fixedly connected to the curved rods with even circumferential distribution, the number of the curved rods is equal to that of the laser generators, and each group of curved rods is provided between two adjacent groups of laser generators, the top center of the covering sleeve is rotatably connected to the drag rod, the rotating end of the drag rod is provided with a reset spring 2 that can drive the reset, the end of the drag rod away from the covering sleeve is rotatably connected to the linkage handle, and one side of the rotating surface of the linkage handle is provided with an elastic deformation body that drives the linkage handle to rotate and reset, a protruding block is provided on one side of the drag rod, and the end of the linkage handle away from the drag rod is fixedly connected to the arc-shaped handle.

[0020] Preferably, the side wall of the contact tank is fixedly connected with a hinge, the rotating portion of the hinge is fixedly connected with an opening and closing door, and the contact tank is rotatably connected to the opening and closing door via the hinge.

[0021] Preferably, the laser generators are in multiple groups and are evenly distributed circumferentially on the outer ring of the multi-station table. The input wheel of the fixed rod is fixedly connected to a docking shaft, and the docking shaft is fixedly connected to the top of the transmission shaft column.

[0022] Working principle: The multi-station laser welding device used to produce electric kettles is mainly used to weld and fix the lid and body of the electric kettle blank. The lid and the body pre-cover are put together and placed on the multi-station driving mechanism inside the built-in processing mechanism. The multi-station structure of the multi-station driving mechanism itself is used to place multiple batches of materials. The welding fixing mechanism set by the component fixing mechanism is then used to laser weld the lid and body of a single electric kettle blank. The welding fixing mechanism has multiple laser driving components. When a single component is working, the welding cooling mechanism will provide cooling for the working component. Steam can also be generated by the steam cooling mechanism. The adhesion of steam is used to cool the kettle body and lid during welding. After the single piece is welded, the multi-station can be used The driving mechanism drives the blanks at different stations to rotate to the processing station. While the multi-station driving mechanism is driving, the welding fixing mechanism synchronously converts the next group of laser generating elements to ensure the smoothness of laser welding. The next group of elements enters the welding cooling mechanism at the same time for temperature reduction protection. First, the opening and closing door belonging to the built-in processing mechanism is opened, and the opening and closing door is opened along the hinge on the contact tank to form an output channel that can enter the interior of the contact tank. The kettle blank and the kettle lid that needs to be welded are placed in the contact tank in turn, and are carried by the blank cylinder belonging to the multi-station driving mechanism. Multiple groups of blank cylinders are installed on the annular slide in a circular distribution form to form multiple storage stations in a circular distribution form, one of which can be used as the main processing work station and start The fixing rod and welding head are suspended and fixed by the component fixing mechanism. The welding head included in the welding fixing mechanism is suspended above the kettle blank through the fixing rod and the suspension frame. The welding fixing mechanism includes multiple groups of laser generators, which are distributed and installed around the welding head through a multi-station table. The group that needs to work is connected to the welding head while driving the welding head to generate welding laser. When this group of laser generators is working, its position will enter the covering sleeve included in the welding cooling mechanism, and it will be wrapped and fitted by the heat dissipation elbow installed inside the covering sleeve to continuously provide cooling for this group of laser generators during fitting, while other groups of laser generators always remain in a dormant protection state. After the kettle body and lid of this group of kettle blanks are welded, it is started through the sealing tank and the cross fixing ring The fixed output motor drives the output wheel installed at the output end to rotate, and the output wheel simultaneously drives the arc block fixed on its side wall to rotate centrifugally. When the arc block rotates, the linkage ratchet installed on the rotating shaft at the bottom of the sliding disk that fixes multiple groups of blank tubes is indirectly engaged with the arc block, driving the sliding disk to rotate at a small angle along the annular slide, driving the processed blanks to break away from the bottom of the welding fixing mechanism, and the next group of kettle blanks are driven by the sliding disk to rotate to the bottom of the welding fixing mechanism for the next group of welding. With the rotation of the sliding disk, the transmission shaft column on its top transmits the small-angle rotational torque to the docking shaft included in the welding fixing mechanism, and the docking shaft and the installed belt transmission are used to transmit the small-angle rotational torque to the rotating sleeve installed on the suspension frame.The rotating sleeve drives the multi-station table and the laser generators distributed on the side walls of the multi-station table to rotate, so that when the next group of blanks starts welding, the next group of laser generators will enter the station synchronously to work. When the multi-station table drives the next group of laser generators to rotate into the station, the welding cooling mechanism starts to work. When the laser generator rotates at a small angle following the multi-station table, the covering sleeve contained in the welding cooling mechanism also rotates accordingly. The second side wall of the linkage ring is also equipped with multiple groups of curved rods distributed in a circular form, and the curved rods are arranged in a cross manner between adjacent laser generators, so that when the laser generator rotates, its corresponding curved rod can always move in front of the group of laser generators. When the group of curved rods rotates, the laser generator that completes the work The corresponding curved rod will rotate to the distance with the linkage ring and detach from the arc-shaped clamping handle installed at the end of the linkage handle, so that the drag rod fixed by the linkage handle and the rotating midpoint covering sleeve on the drag rod will be detached from the traction at the same time. At this time, the covering sleeve will slide along the limiting slide rail and away from the laser generator due to the elastic force of the reset spring that keeps it stretched. After the laser generator that has completed its work is completely detached from the covering sleeve, it follows the rotating multi-station table to detach from the welding cooling mechanism, and the drag rod is also reset under the action of the reset clamping spring installed on its rotating shaft. The linkage handle is also fitted on the protruding block installed on the drag rod under the elastic operation of the elastic deformer installed at the end of the drag rod. At this time, a bending shape is formed between the linkage handle and the drag rod to wait for the next set of curved rods. The next set of curved rods corresponds to the laser generator. The device rotates with the multi-station table into the position of the covering sleeve, so that after the group of curved rods contacts the arc-shaped clamping handle installed on the linkage handle, the arc-shaped clamping handle is clamped and the rotational torque is used to drag the arc-shaped clamping handle and the linkage handle to rotate. The dragging rod follows the linkage handle to move at the same time and begins to pull the covering sleeve to move along the limiting slide rail until the covering sleeve wraps the group of laser generators that need to work and cools them down when they are fitted. When the laser generator included in the welding fixing mechanism rotates at a small angle following the sliding disk included in the multi-station driving mechanism because of the replacement of the new station blank, the synchronously replaced laser generator is followed into the welding cooling mechanism through the intervention of the welding cooling mechanism to provide cooling protection during operation, thereby uninterrupted welding operation. At the same time, the key The laser element itself can be fully protected at the same time to avoid damage from high temperature. When the laser welding work starts, the water injection box and the sealing arc plate are pulled out, and the water used for evaporation is added to the heating tank through the water injection box. At the same time, the heating output element located inside the component compartment is started. The heating output element generates heat, and conducts heat through the central heat-conducting column and the heat-conducting ring installed on the side wall of the central heat-conducting column to heat and evaporate the water added to the heating tank. The water vapor generated after the water is heated begins to float, and the steam continues to rise through the dredging groove installed on the sliding plate, and contacts the kettle blank carried on the blank tube. The contact of the high-temperature water vapor quickly attaches to and cools the kettle blank during welding. At the same time, the water vapor is used to absorb the irritating gas generated during welding.The steam continues to rise until it reaches the inside of the top cover installed on the top of the contact tank. Due to the contact with the external low-temperature environment, the top cover's own temperature is lower than the evaporation temperature of water. The steam contacts the inside of the top cover, condenses, and forms water droplets. It flows back to the inside of the heating tank through the guide groove installed on the side wall of the contact tank to continue heating and evaporation. The excess is sucked into the top cover by the exhaust fan located inside the exhaust pipe to generate negative pressure. The gas is continuously adsorbed and filtered along the activated carbon filter plate opened inside the top cover before being discharged to the outdoors, avoiding pollution of the outside air. The water vapor is also used to cool the kettle blank during welding.

[0023] The present invention provides a multi-station laser welding device for producing electric kettles. It has the following beneficial effects:

[0024] 1. The present invention achieves continuity and automation of the production process: through the built-in multi-station drive mechanism and the automatic position change function of the laser welding system, the entire welding process can be carried out continuously, while reducing the need for human intervention, improving production efficiency and reducing operational errors. Through the sophisticated mechanical and electronic control system, the welding position and welding strength can be accurately adjusted to adapt to different working conditions and requirements. This includes the use of a linkage mechanism and a multi-station table design, which allows the laser generator to be quickly switched and positioned between different welding stations.

[0025] 2. This invention features a highly efficient cooling and protection mechanism: Through a real-time cooling system during welding (including a heat dissipation elbow and cover), the high temperatures generated during welding are effectively managed, protecting the laser generator from overheating damage while ensuring weld quality. This cooling mechanism helps maintain equipment stability and extend its service life. The use of water vapor cooling and gas adsorption technology not only provides additional cooling for the welded parts but also reduces resource waste and environmental pollution by capturing and reusing the water vapor and gases generated in the system. The use of activated carbon filter plates reduces the emission of harmful substances, complying with environmental requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional schematic diagram of the main structure of the present invention Figure 1 ;

[0027] Figure 2 A three-dimensional schematic diagram of the main structure of the present invention Figure 2 ;

[0028] Figure 3 A three-dimensional schematic diagram of the main structure of the present invention Figure 3 ;

[0029] Figure 4 It is a schematic diagram of the internal structure of the main body of the present invention;

[0030] Figure 5 A three-dimensional schematic diagram of the main structure of the present invention Figure 4 ;

[0031] Figure 6 Schematic diagram of the built-in processing mechanism and steam cooling mechanism structure combination of the present invention Figure 1 ;

[0032] Figure 7 Schematic diagram of the built-in processing mechanism and steam cooling mechanism structure combination of the present invention Figure 2 ;

[0033] Figure 8 This is a schematic diagram of the laser welding structure of the present invention Figure 1 ;

[0034] Figure 9 This is a schematic diagram of the laser welding structure of the present invention Figure 2 ;

[0035] Figure 10 This is a schematic diagram of the laser welding structure of the present invention Figure 3 ;

[0036] Figure 11 This is a schematic diagram of the laser welding structure of the present invention Figure 4 ;

[0037] Figure 12 It is a partial structural diagram of the welding cooling mechanism of the present invention.

[0038] Among them, 1. Stable frame; 2. Built-in processing mechanism; 3. Steam cooling mechanism; 4. Multi-station drive mechanism; 5. Component fixing mechanism; 6. Welding fixing mechanism; 7. Welding cooling mechanism; 21. Contact tank; 22. Hinge; 23. Opening and closing door; 24. Top cover; 25. Exhaust duct; 26. Guide groove; 27. Air supply duct; 28. Exhaust trough; 29. Exhaust turbofan; 210. Activated carbon filter plate; 31. Heating tank; 32. Component cabin; 33. Heat dissipation hole; 34. Heating output element; 35. Central heat conduction column; 36. Heat conduction ring; 37. Water filling box; 38. Sealing arc plate; 41. Annular slide; 42. Sliding disk ; 43. Clearing groove; 44. Blank tube; 45. Cross fixing ring; 46. Sealing can; 47. Output motor; 48. Linkage ratchet; 49. Output wheel; 410. Arc block; 411. Transmission shaft; 51. Suspension bracket; 52. Side bracket; 53. Limiting slide rail; 61. Fixed rod; 62. Rotating sleeve; 63. Belt transmission part; 64. Welding head; 65. Multi-station table; 66. Laser generator; 67. Docking shaft; 71. Covering sleeve; 72. Heat dissipation elbow; 73. Reset retaining spring 1; 74. Linkage ring; 75. Bending rod; 76. Drag rod; 77. Reset retaining spring 2; 78. Linkage handle; 79. Arc handle. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings 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 making creative efforts are within the scope of protection of the present invention.

[0040] Please see the attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides a multi-station laser welding device for producing electric kettles, comprising: a stable frame 1 for supporting the structure of the electric kettle laser welding equipment, a built-in processing mechanism 2 arranged at the upper part of the stable frame 1, a steam cooling mechanism 3 arranged at the lower part of the stable frame 1, a multi-station driving mechanism 4 arranged inside the built-in processing mechanism 2 and above the steam cooling mechanism 3, a component fixing mechanism 5 arranged on the built-in processing mechanism 2, a welding fixing mechanism 6 arranged on the component fixing mechanism 5, and a welding cooling mechanism 7 arranged between the component fixing mechanism 5 and the welding fixing mechanism 6. The multi-station laser welding device for producing electric kettles is mainly used for welding and fixing the lid and the body of the electric kettle blank. After the lid and the body are pre-covered, they are placed in the multi-station driving mechanism inside the built-in processing mechanism 2. On the driving mechanism 4, multiple batches of materials are placed through the multi-station structure of the multi-station driving mechanism 4 itself, and then the welding fixing mechanism 6 set by the component fixing mechanism 5 is used to laser weld the lid and the body of a single electric kettle blank. The welding fixing mechanism 6 has multiple laser driving components. When a single component is working, the welding cooling mechanism 7 will provide cooling operation for the working component. Steam can also be generated by the steam cooling mechanism 3, and the adhesion of the steam is used to cool the body and lid of the kettle during welding. After the single piece is welded, the multi-station driving mechanism 4 can be used to drive the blanks in different stations to rotate to the processing position. While the multi-station driving mechanism 4 is driving, the welding fixing mechanism 6 synchronously converts the next group of laser generating components to ensure the smoothness of laser welding. The next group of components enters the welding cooling mechanism 7 at the same time for temperature reduction protection.

[0041] Please see the attached Figure 1 -Attached Figure 6The built-in processing mechanism 2 is located on the stable frame 1 and is used to wrap the laser welding structure. The built-in processing mechanism 2 includes a contact tank 21. The top of the contact tank 21 is fixedly connected to a top cover 24. The top of the top cover 24 is fixedly connected to an exhaust pipe 25. The inner side wall of the contact tank 21 is provided with a plurality of groups of evenly distributed guide grooves 26. The air supply pipe 27 is fixedly connected to the bottom output end of the exhaust pipe 25. The inner side wall of the exhaust pipe 25 is fixedly connected to an exhaust turbofan 29. The air supply pipe 27 extends into the interior of the contact tank 21. The side wall of the air supply pipe 27 is provided with a plurality of groups of evenly distributed exhaust grooves 28. The top input end of the guide groove 26 extends to the bottom output end of the exhaust pipe 25. It extends to the top cover 24, and the bottom output end of the guide groove 26 extends to the heating tank 31. The side wall of the contact tank 21 is fixedly connected with a hinge 22, and the rotating part of the hinge 22 is fixedly connected with an opening and closing door 23. The contact tank 21 is rotatably connected to the opening and closing door 23 through the hinge 22. The bottom output port of the top cover 24 is provided with an activated carbon filter plate 210. By opening the opening and closing door 23 belonging to the built-in processing mechanism 2, the opening and closing door 23 is opened on the contact tank 21 along the hinge 22, forming an output channel that can enter the interior of the contact tank 21, and the kettle blank and the kettle lid that needs to be welded are placed in the interior of the contact tank 21 in turn.

[0042] Please see the attached Figure 1 -Attached Figure 6The steam cooling mechanism 3 is located on the stable frame 1, and cooperates with the contact tank 21 and the heating tank 31 to generate steam for cooling and adsorption of welding exhaust gas. The steam cooling mechanism 3 includes a heating tank 31, which is fixedly connected to the bottom of the contact tank 21. A component cabin 32 is provided at the bottom of the heating tank 31. The side wall of the component cabin 32 is provided with multiple groups of heat dissipation holes 33 evenly distributed in a circular pattern. A central heat-conducting column 35 is fixedly connected to the top of the component cabin 32. The side wall of the central heat-conducting column 35 is fixedly connected to multiple groups of heat-conducting rings 36 evenly arranged longitudinally. A heating output element 34 is fixedly connected to the inside of the component cabin 32. The top output end of the heating output element 34 is fixedly connected to a central heat conducting column 35. The side wall of the component cabin 32 is provided with a plurality of heat dissipation holes 33 evenly distributed on the circumference. The side wall of the heating tank 31 is slidably connected to a water injection box 37. The outer end of the water injection box 37 is fixedly connected to a sealing arc plate 38. The sealing arc plate 38 is located outside the heating tank 31. When the laser welding work starts, the water injection box 37 and the sealing arc plate 38 are pulled out, and the water used for evaporation is added to the inside of the heating tank 31 through the water injection box 37. At the same time, the heating output element 34 located inside the component cabin 32 is started, and the heating output element 3 4 generates heat, and conducts heat through the central heat-conducting column 35 and the heat-conducting ring 36 installed on the side wall of the central heat-conducting column 35, heating and evaporating the water filled in the heating tank 31. The water vapor generated by the heated water begins to float, and the steam continues to rise through the dredging groove 43 installed on the sliding plate 42, and contacts the kettle blank carried by the blank tube 44. The contact of the high-temperature water vapor quickly adheres to and cools the kettle blank during welding. At the same time, the water vapor absorbs the irritating gas generated during welding. The steam continues to rise until it reaches the inside of the top cover 24 installed on the top of the contact tank 21. The top cover 2 Due to the contact with the external low-temperature environment, the temperature of the steam is lower than the evaporation temperature of water. The steam contacts the inside of the top cover 24, condenses, and forms water droplets. The steam flows back to the inside of the heating tank 31 through the guide groove 26 installed on the inner side wall of the contact tank 21 to continue heating and evaporation. The excess steam is sucked into the top cover 24 by the exhaust fan 29 located inside the exhaust pipe 25 to generate negative pressure suction. The steam is continuously adsorbed and filtered along the activated carbon filter plate 210 opened inside the top cover 24 before being discharged to the outdoors, thereby avoiding pollution of the outside air and using the steam to cool the kettle blank during welding.

[0043] Please see the attached Figure 1 -Attached Figure 7The multi-station driving mechanism 4 is located on the built-in processing mechanism 2, cooperates with the contact tank 21 and is used to carry multiple electric kettles to be processed. The multi-station driving mechanism 4 includes an annular slide 41 and a cross fixing ring 45. The annular slide 41 is fixedly connected to the inner side wall of the contact tank 21 and is located above the steam cooling mechanism 3. The inner side wall of the annular slide 41 is rotatably connected to a sliding disk 42. The sliding disk 42 is provided with a plurality of groups of dredging grooves 43 evenly distributed circumferentially. The top of the sliding disk 42 is fixedly connected to a plurality of groups of blank cylinders 44 evenly distributed circumferentially. The bottom rotating shaft of the blank cylinder 44 is fixedly connected to a linkage ratchet 48. The cross fixing ring 45 is fixedly connected to the inner side wall of the contact tank 21 and is located below the annular slide 41. The center of the cross fixing ring 45 is fixedly connected to a sealing tank 46. The inside of the sealing tank 46 is fixedly connected to an output motor 47. The top output end of the output motor 47 is fixedly connected to an output wheel 49. The side wall of the output wheel 49 is fixedly connected to an arc block 410. The transmission shaft column 411 is fixedly connected to the blank cylinder 4 At the top center, the kettle blanks are carried by the blank cylinders 44 belonging to the multi-station driving mechanism 4. Multiple groups of blank cylinders 44 are installed on the annular slide 41 in a circumferentially distributed manner, forming multiple storage stations in a circumferentially distributed manner, one of which can be used as a main processing work station. After the kettle body and lid of this group of kettle blanks are welded, the output motor 47 fixed by the sealing tank 46 and the cross fixing ring 45 is started to drive the output wheel 49 installed at the output end to rotate. The output wheel 49 also drives the arc block 410 fixed on its side wall to centrifugal rotation. When the arc block 410 rotates, the linkage ratchet 48 installed on the bottom rotation axis of the sliding disk 42 fixed with the multiple groups of blank cylinders 44 is indirectly engaged with the arc block 410, driving the sliding disk 42 to rotate at a small angle along the annular slide 41, driving the processed blanks to separate from the bottom of the welding fixing mechanism 6, and the next group of kettle blanks are driven by the sliding disk 42 to rotate to the bottom of the welding fixing mechanism 6 for the next group of welding.

[0044] Please see the attached Figure 1 -Attached Figure 11 The component fixing mechanism 5 is located on the built-in processing mechanism 2, and is used to fix the laser welding structure in conjunction with the air duct 27. The component fixing mechanism 5 includes a suspension bracket 51, which is fixedly connected to the bottom of the air duct 27, and a side bracket 52 is fixedly connected to the side of the suspension bracket 51 away from the air duct 27. The limiting slide rail 53 is fixedly connected to the bottom of the side bracket 52. At this time, the covering sleeve 71 will slide along the limiting slide rail 53 and away from the laser generator 66 due to the elastic force of the reset spring 73 that maintains tension, until the laser generator 66 that has completed the work is completely out of the covering sleeve 71, and follows the rotating multi-station 65 to separate from the welding cooling mechanism 7.

[0045] Please see the attached Figure 1 -Attached Figure 11The welding fixing mechanism 6 is located on the component fixing mechanism 5, and cooperates with the suspension frame 51, the side frame 52 and the transmission shaft column 411 to perform laser welding on the connection part between the lid and the body of the electric kettle. The welding fixing mechanism 6 includes a fixed rod 61, a rotating sleeve 62 and a belt transmission member 63. The fixed rod 61 is rotatably connected to the fixed rod 61 and is located on the side of the suspension frame 51 away from the air supply pipe 27. The rotating sleeve 62 is rotatably connected to the outside of the fixed rod 61. The belt transmission member 63 is arranged on the top of the fixed rod 61. The output pulley portion of the fixed rod 61 is connected to the rotating sleeve 62, the bottom end of the fixed rod 61 is fixedly connected to the welding head 64, the bottom end of the rotating sleeve 62 is fixedly connected to the multi-station 65, the multi-station 65 is rotatably connected to the outside of the fixed rod 61, the laser generator 66 is multiple groups, and is evenly distributed on the outer ring of the multi-station 65, the input wheel of the fixed rod 61 is fixedly connected to the docking shaft 67, the docking shaft 67 is fixedly connected to the top of the transmission shaft column 411, and the fixed rod 61 suspended by the component fixing mechanism 5 is started to rotate. And the welding head 64, the welding head 64 included in the welding fixing mechanism 6 is suspended above the kettle blank through the fixing rod 61 and the suspension frame 51, the welding fixing mechanism 6 includes a plurality of groups of laser generators 66, which are distributed and installed around the welding head 64 through the multi-station table 65. The group that needs to work is connected to the welding head 64 while driving the welding head 64 to generate a welding laser. When the group of laser generators 66 is working, its position will enter the covering sleeve 71 included in the welding cooling mechanism 7. As the sliding disk 42 moves, the welding head 64 is driven to generate a welding laser. After the rotation, the transmission shaft 411 at the top transmits the small-angle rotational torque to the docking shaft 67 included in the welding fixing mechanism 6, and the docking shaft 67 and the added belt transmission part 63 transmit the small-angle rotational torque to the rotating sleeve 62 installed on the suspension frame 51, so that the rotating sleeve 62 drives the multi-station 65 and the laser generator 66 distributed on the side wall of the multi-station 65 to rotate, thereby realizing that when the next group of blanks starts welding processing, the next group of laser generators 66 will synchronously enter the station to work.

[0046] Please see the attached Figure 1 -Attached Figure 12, the welding cooling mechanism 7 is located on the welding fixing mechanism 6, and cooperates with the limiting slide 53, the rotating sleeve 62, the multi-station table 65 and the laser generator 66 to dissipate heat for the laser welding structure. The welding cooling mechanism 7 includes a covering sleeve 71 and a linkage ring 74. The covering sleeve 71 is slidably connected to the limiting slide 53. The inside of the covering sleeve 71 is fixedly connected with uniformly arranged heat dissipation elbows 72. A reset spring 73 is provided between the covering sleeve 71 and the inner side wall of the side frame 52. The linkage ring 74 is fixedly connected to the top of the multi-station table 65. The outer ring part of the side wall of the linkage ring 74 is fixedly connected with a uniformly circumferentially distributed curved rod 75. The number of curved rods 75 is equal to that of the laser generator 66. Each group of curved rods 75 is arranged between two adjacent groups of laser generators 66. The top of the covering sleeve 71 The center of the part is rotatably connected to a drag rod 76, and the rotating end of the drag rod 76 is provided with a reset spring 77 that can be driven to reset. The end of the drag rod 76 away from the covering sleeve 71 is rotatably connected to a linkage handle 78, and one side of the rotating surface of the linkage handle 78 is provided with an elastic deformer that drives the linkage handle 78 to rotate and reset. A protruding block is provided on one side of the drag rod 76, and the end of the linkage handle 78 away from the drag rod 76 is fixedly connected to an arc-shaped clamping handle 79. When this group of laser generators 66 is working, its position will enter the covering sleeve 71 included in the welding cooling mechanism 7, and it will be wrapped and fitted by the heat dissipation elbow 72 installed inside the covering sleeve 71, continuously providing cooling for this group of laser generators 66 during fitting, while other groups of laser generators 66 always remain in a dormant protection state without powering on. , while the multi-station table 65 drives the next group of laser generators 66 to rotate into the work station, the welding cooling mechanism 7 starts to work. When the laser generator 66 rotates at a small angle following the multi-station table 65, the covering sleeve 71 contained in the welding cooling mechanism 7 also rotates accordingly. The side wall of the linkage ring 2 74 is also equipped with multiple groups of curved rods 75 distributed in a circular form, and the curved rods 75 are arranged in a cross manner between adjacent laser generators 66, so that when the laser generator 66 rotates, its corresponding curved rod 75 can always move in front of the group of laser generators 66. When the group of curved rods 75 rotates, the curved rod 75 corresponding to the laser generator 66 that has completed the work will follow the linkage ring 74 to rotate to a distance and disengage from the arc clamp installed at the end of the linkage handle 78. When the cam 75 is in the closed position, the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position, and the cam 75 is in the closed position, so that the cam 75 is in the closed position,The next set of curved rods 75 corresponding to the laser generator 66 follows the multi-station table 65 to rotate into the position of the cover sleeve 71, so that after the curved rods 75 contact the arc-shaped clamping handle 79 installed on the linkage handle 78, they engage the arc-shaped clamping handle 79 and, at the same time, use the rotational torque to drag the arc-shaped clamping handle 79 and the linkage handle 78 to rotate. The dragging rod 76 simultaneously follows the linkage handle 78 to move and begins to pull the cover sleeve 71 to move along the limiting slide rail 53 until the cover sleeve 71 wraps around the group of laser generators 66 that need to work and cools them during bonding. When the laser generator 66 included in the welding fixing mechanism 6 rotates a small angle following the sliding disk 42 included in the multi-station driving mechanism 4 due to the replacement of the new station blank, the welding cooling mechanism 7 intervenes, so that the synchronously replaced laser generator 66 follows and enters the welding cooling mechanism 7 to provide cooling protection during operation, thereby uninterrupted welding operation. At the same time, the key laser components themselves can be fully protected to avoid damage from high temperature.

[0047] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the 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: include: A stabilizing frame (1) for supporting the structure of the electric kettle laser welding equipment; A built-in processing mechanism (2) is located on the stable frame (1) and is used to enclose the laser welding structure; The steam cooling mechanism (3) is located on the stable frame (1) and cooperates with the contact tank (21) and the heating tank (31) to generate steam for cooling and adsorbing welding waste gas; The multi-station drive mechanism (4) is located on the built-in processing mechanism (2), cooperates with the contact tank (21) and is used to carry a plurality of electric kettles to be processed; The component fixing mechanism (5) is located on the built-in processing mechanism (2) and cooperates with the air supply pipe (27) to fix the laser welding structure; The welding fixing mechanism (6) is located on the component fixing mechanism (5), and cooperates with the suspension frame (51), the side frame (52) and the transmission shaft column (411) to perform laser welding on the kettle lid and the kettle body connection part of the electric kettle; The welding cooling mechanism (7) is located on the welding fixing mechanism (6) and cooperates with the limiting slide rail (53), the rotating sleeve (62), the multi-station table (65) and the laser generator (66) to dissipate heat from the laser welding structure; The welding fixing mechanism (6) comprises a fixed rod (61), a rotating sleeve (62) and a belt transmission member (63), wherein the rotating sleeve (62) is rotatably connected to the outside of the fixed rod (61), the belt transmission member (63) is arranged on the top of the fixed rod (61), the output pulley portion of the fixed rod (61) is connected to the rotating sleeve (62), the bottom end of the fixed rod (61) is fixedly connected to a welding head (64), the bottom end of the rotating sleeve (62) is fixedly connected to a multi-station table (65), and the multi-station table (65) is rotatably connected to the outside of the fixed rod (61); The welding cooling mechanism (7) includes a covering sleeve (71) and a linkage ring (74), wherein the covering sleeve (71) is slidably connected to the limiting slide rail (53), and the covering sleeve (71) is fixedly connected to the inside of the covering sleeve (71) with uniformly arranged heat dissipation elbows (72), and a reset spring (73) is provided between the covering sleeve (71) and the inner side wall of the side frame (52), and the linkage ring (74) is fixedly connected to the top of the multi-station table (65), and the outer ring portion of the side wall of the linkage ring (74) is fixedly connected to the curved rods (75) uniformly distributed on the circumference, and the number of the curved rods (75) is equal to the number of laser generators (66), and each group of curved rods (7 5) It is arranged between two adjacent groups of laser generators (66), the center of the top of the covering sleeve (71) is rotatably connected to a drag rod (76), the rotating end of the drag rod (76) is provided with a reset spring (77) that can be driven to reset, the end of the drag rod (76) away from the covering sleeve (71) is rotatably connected to a linkage handle (78), one side of the rotating surface of the linkage handle (78) is provided with an elastic deformation body that drives the linkage handle (78) to rotate and reset, one side of the drag rod (76) is provided with a protruding block, and the end of the linkage handle (78) away from the drag rod (76) is fixedly connected to an arc-shaped clamping handle (79); The laser generators (66) are arranged in multiple groups and are evenly distributed on the outer ring of the multi-station table (65). The input wheel of the fixed rod (61) is fixedly connected to a docking shaft (67), and the docking shaft (67) is fixedly connected to the top of the transmission shaft column (411); The multi-station drive mechanism (4) includes an annular slide (41) and a cross fixing ring (45), wherein the annular slide (41) is fixedly connected to the inner side wall of the contact tank (21) and is located above the steam cooling mechanism (3), and the inner side wall of the annular slide (41) is rotatably connected to a sliding disk (42), wherein the sliding disk (42) is provided with a plurality of groups of dredging grooves (43) evenly distributed on the circumference, and the top of the sliding disk (42) is fixedly connected to a plurality of groups of blank cylinders (44) evenly distributed on the circumference, and the bottom of the blank cylinder (44) is fixedly connected to a rotating shaft. There is a linked ratchet (48), the cross fixing ring (45) is fixedly connected to the inner side wall of the contact tank (21) and is located below the annular slide (41), the center of the cross fixing ring (45) is fixedly connected to the sealing tank (46), the interior of the sealing tank (46) is fixedly connected to the output motor (47), the top output end of the output motor (47) is fixedly connected to the output wheel (49), the side wall of the output wheel (49) is fixedly connected to the arc block (410), and the transmission shaft column (411) is fixedly connected to the top center of the blank cylinder (44).

2. A multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: The built-in processing mechanism (2) is arranged on the upper part of the stable frame (1), the steam cooling mechanism (3) is arranged on the lower part of the stable frame (1), the multi-station driving mechanism (4) is arranged inside the built-in processing mechanism (2) and is displaced above the steam cooling mechanism (3), the component fixing mechanism (5) is arranged on the built-in processing mechanism (2), the welding fixing mechanism (6) is arranged on the component fixing mechanism (5), and the welding cooling mechanism (7) is arranged between the component fixing mechanism (5) and the welding fixing mechanism (6).

3. The multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: The built-in processing mechanism (2) includes a contact tank (21), a top cover (24) is fixedly connected to the top of the contact tank (21), an exhaust pipe (25) is fixedly connected to the top of the top cover (24), a plurality of groups of guide grooves (26) with uniform circumferential distribution are provided on the inner side wall of the contact tank (21), the air supply pipe (27) is fixedly connected to the bottom output end of the exhaust pipe (25), an exhaust turbofan (29) is fixedly connected to the inner side wall of the exhaust pipe (25), the air supply pipe (27) extends into the interior of the contact tank (21), a plurality of groups of exhaust grooves (28) with uniform circumferential distribution are provided on the side wall of the air supply pipe (27), the top input end of the guide groove (26) extends to the top cover (24), the bottom output end of the guide groove (26) extends to the heating tank (31), and the bottom output port of the top cover (24) is provided with an activated carbon filter plate (210).

4. The multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: The steam cooling mechanism (3) comprises a heating tank (31), wherein the heating tank (31) is fixedly connected to the bottom of the contact tank (21), a component cabin (32) is provided at the lower part of the interior of the heating tank (31), a side wall of the component cabin (32) is provided with a plurality of groups of heat dissipation holes (33) evenly distributed circumferentially, a central heat-conducting column (35) is fixedly connected to the top of the component cabin (32), a side wall of the central heat-conducting column (35) is fixedly connected to a plurality of groups of heat-conducting rings (36) evenly arranged longitudinally, a heating output element (34) is fixedly connected to the interior of the component cabin (32), a top output end of the heating output element (34) is fixedly connected to the central heat-conducting column (35), a side wall of the component cabin (32) is provided with a plurality of groups of heat dissipation holes (33) evenly distributed circumferentially, a water injection box (37) is slidably connected to the side wall of the heating tank (31), an outer end of the water injection box (37) is fixedly connected to a sealing arc plate (38), and the sealing arc plate (38) is located outside the heating tank (31).

5. The multi-station laser welding device for producing electric kettles according to claim 1, characterized in that: The element fixing mechanism (5) includes a suspension frame (51), the suspension frame (51) is fixedly connected to the bottom of the air duct (27), the side frame (52) is fixedly connected to the side of the suspension frame (51) away from the air duct (27), and the limiting slide rail (53) is fixedly connected to the bottom of the side frame (52).

6. The multi-station laser welding device for producing electric kettles according to claim 3, characterized in that: The side wall of the contact tank (21) is fixedly connected to a hinge (22), the rotating portion of the hinge (22) is fixedly connected to an opening and closing door (23), and the contact tank (21) is rotatably connected to the opening and closing door (23) via the hinge (22).

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