Laser welding machine for connecting heating wire of heater

Abstract

The invention relates to the technical field of laser welding, and discloses a laser welding machine for connecting a heating wire of a heater, the laser welding machine comprises a cabinet, the rear end of the upper end face of the cabinet is fixedly connected with a machine frame, and a laser welding head is arranged in the machine frame. According to the laser welding machine for heater heating wire connection, a heater can be automatically clamped and fixed through the clamping mechanism, the fixing efficiency is improved, the rotating sleeve can be driven to rotate through the rotating mechanism, and then inclination angle adjustment or turnover adjustment can be conducted on the clamped heater; welding of heating wire connection can be conveniently carried out on the back face of a heater, the position of a laser welding head can be accurately and automatically adjusted through a shifting mechanism, comprehensive welding can be conveniently carried out, a heating wire can be limited through a pressing mechanism, the stability of the heating wire during welding is guaranteed, and the welding quality is improved; and smoke generated in the welding process can be sucked and purified through the smoke suction mechanism, and the operation environment is prevented from being polluted.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and specifically to a laser welding machine for connecting heating wires of a heater. Background Art

[0002] In the field of modern industrial production, as a key heat energy conversion device, heaters are widely used in many industries such as home appliance manufacturing, industrial heating systems, aerospace, and automotive manufacturing. A heater is a device that converts electrical energy into heat energy for heating other objects. Heaters include electric heating plates, etc. As the core heat-generating component of the electric heating plate, the connection quality of the heating wire is directly related to the performance, reliability, and service life of the heater. During the manufacturing process of the electric heating plate, it is necessary to weld the heating wire to the electric heating plate.

[0003] For example, the Chinese patent with the publication number "CN220921308U" discloses "a laser welding machine", which includes a chassis and an operating table. The chassis and the operating table are electrically connected. The operating table includes a welding panel. Symmetrically fixed to both sides of the bottom of the welding panel are support rods. Symmetrically fixed to both sides of the top of the welding panel are columns. Fixed to the top of the columns is an electric guide rail. Slidably connected to the top of the electric guide rail is a sliding table. Fixed to the top of the sliding table is an installation box. Rotatably connected inside the installation box is a lead screw. One end of the lead screw passes through the installation box and is fixedly connected to a driving motor. Below the lead screw is a guide shaft fixedly connected to the installation box. Threadedly connected to the outside of the lead screw is a moving seat. Fixed to the front side of the moving seat is a fixed frame. Fixed to the bottom of the fixed frame is a telescopic cylinder. Fixed to the bottom of the telescopic cylinder is a fixing plate. Fixed to the bottom of the fixing plate is a welding head. This utility model has a simple structure, is convenient to operate, and has good applicability, and is worthy of use and promotion.

[0004] However, when the above laser welding machine is actually used, it is necessary to manually fix the heater, which is relatively inconvenient to operate. At the same time, it is also inconvenient to limit the heating wire. During the welding process, the heating wire is prone to move, reducing the welding quality. At the same time, the moving effect of the welding head is poor. At the same time, it is also inconvenient to weld the heating wire on both sides of the heater. When it is necessary to weld the heating wire on the other side of the heater, it is necessary to turn it over and refix it, resulting in low welding efficiency. At the same time, the smoke generated during welding is prone to disperse into the control, polluting the working environment. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a laser welding machine for connecting heating wires of a heater, which can automatically clamp and fix the heater, and at the same time can limit the heating wire to ensure the stability of the heating wire during welding. It can adjust the position of turning over the heater, which is convenient for welding the back of the heater. At the same time, it can also absorb and purify the smoke, and at the same time can improve the moving effect of the welding head, solving the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solutions: A laser welding machine for connecting a heater heating wire, comprising a cabinet, a machine frame is fixedly connected to the rear end of the upper end surface of the cabinet, a laser welding head is arranged in the machine frame, a displacement mechanism for displacing the laser welding head is arranged on the machine frame, a rotating frame is fixedly connected in the machine frame, a rotating sleeve is rotatably connected in the rotating frame, a rotating mechanism for driving the rotating sleeve to rotate is arranged at the rear side of the rotating frame, a connecting plate is fixedly connected in the rotating sleeve, two bearing frames are symmetrically and fixedly connected to the front side wall of the connecting plate, a clamping mechanism is arranged between the two bearing frames, pressing mechanisms are arranged on both bearing frames, and a smoking mechanism is arranged outside the bearing frame.

[0007] Preferably, the displacement mechanism includes a mounting frame fixed to the right end of the upper end surface of the machine frame, a first screw rod is rotatably connected in the mounting frame, a first motor is fixedly connected to the rear end of the mounting frame, the driving end of the first motor is fixedly connected to the rear end of the first screw rod, a first displacement block is threadedly connected to the first screw rod, a slide rail is fixedly connected to the left end of the upper end surface of the machine frame, a slider is slidably connected to the slide rail, and the first displacement block and the slider are detachably connected to a cross plate by an internal hexagonal bolt.

[0008] Preferably, the cross plate is detachably connected to a connecting block by an internal hexagonal bolt, a vertical frame is fixedly connected to the front end of the connecting block, a second screw rod is rotatably connected in the vertical frame, a second motor is fixedly connected to the upper end surface of the vertical frame, the driving end of the second motor is fixedly connected to the top end of the second screw rod, a height-adjusting rod is threadedly connected to the second screw rod, a horizontal frame is fixedly connected to the bottom end of the height-adjusting rod, a third screw rod is rotatably connected in the horizontal frame, a third motor is fixedly connected to one end of the horizontal frame, the driving end of the third motor is fixedly connected to the shaft end of the third screw rod, a second displacement block is threadedly connected to the third screw rod, and the second displacement block is fixedly connected to the laser welding head.

[0009] Preferably, the rotating mechanism includes a gear ring fixed to the rear end of the rotating sleeve by an internal hexagonal bolt, a fourth motor is fixedly connected to the upper end surface of the cabinet, the driving end of the fourth motor is fixedly connected to a gear meshing with the gear ring, and the outer diameter of the gear ring is larger than the inner diameter of the rotating frame.

[0010] Preferably, the clamping mechanism includes two moving openings symmetrically formed in the connecting plate, and sliding heads are slidably connected in both of the two moving openings. The front end of the sliding head is fixedly connected with a clamping plate. The rear end of the clamping plate is rotatably connected with a connecting rod. The rear end of the connecting rod is rotatably connected with a connecting head. A bearing is arranged on the outer side of the connecting head. The outer end of the connecting head is fixedly connected with the inner side wall of the inner ring of the bearing. The outer end of the bearing is fixedly connected with a connecting piece. An assembly plate is fixedly connected to the machine frame. A cylinder is fixedly connected to the assembly plate. The driving end of the cylinder penetrates through the assembly plate and is fixedly connected with the connecting piece.

[0011] Preferably, the pressing mechanism includes sliding frames respectively fixed on the outer side walls of the two bearing frames. Two racks are symmetrically and fixedly connected to the outer side walls of the sliding frames. An assembly block is slidably connected in the sliding frame. An inner cylinder is fixedly connected in the assembly block. A sliding column is slidably connected in the inner cylinder. The inner end of the sliding column is fixedly connected with a spring. The inner end of the spring is fixedly connected with the inner bottom wall of the inner cylinder. The outer end of the sliding column is fixedly connected with a pull button. Two tooth blocks respectively matched with the racks are symmetrically and fixedly connected to the inner side wall of the pull button. The upper and lower ends of the assembly block are respectively connected with brackets through inner hexagon bolts. A threaded column is threadedly connected to the bracket. The outer end of the threaded column is fixedly connected with a knob. The inner end of the threaded column is fixedly connected with a pressing block.

[0012] Preferably, the smoking mechanism includes two fixed seats symmetrically and fixedly arranged on the rotating frame. Smoking pipes are fixedly connected in both of the two fixed seats. A group of smoking heads are uniformly fixedly connected to the smoking pipes. A tee pipe is fixedly connected between the two smoking pipes. An air extraction pump is fixedly connected to the upper end surface of the machine frame. The input end of the air extraction pump is fixedly connected with the top end of the tee pipe through a first connecting pipe. The output end of the air extraction pump is communicated with a purification box through a second connecting pipe. An exhaust pipe is fixedly connected to the outer side wall of the purification box.

[0013] Preferably, two openings are symmetrically formed in the upper end surface of the purification box, and filter frames are respectively arranged in the two openings in a matching manner. A filter plate is fixedly connected in the filter frame. A handle is fixedly connected to the upper end surface of the filter frame.

[0014] Preferably, a support is fixedly connected to the front right side wall of the cabinet. A support plate is installed on the support. The outer end of the upper end surface of the support plate is fixedly connected with a fixing column. A control panel is installed on the fixing column.

[0015] Preferably, a circular opening matched with the rotating sleeve is formed in the rotating frame. The diameter of the outer ring at the front end of the rotating sleeve is larger than the diameter of the circular opening.

[0016] Compared with the prior art, the present invention provides a laser welding machine for connecting a heater heating wire, and has the following beneficial effects:

[0017] The laser welding machine for connecting the heating wire of the heater can automatically clamp and fix the heater by means of a clamping mechanism, improving the fixing efficiency. The rotating mechanism can drive the rotating sleeve to rotate, and then the inclined angle or turning of the clamped heater can be adjusted, which is convenient for welding the heating wire connection on the back of the heater. The displacement mechanism can accurately and automatically adjust the position of the laser welding head for comprehensive welding. The pressing mechanism can limit the heating wire to ensure its stability during welding and improve the welding quality. In addition, the smoking mechanism can suck and purify the smoke generated during the welding process to avoid polluting the working environment. Description of the Drawings

[0018] Figure 1 Schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the smoking mechanism of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the displacement mechanism of the present invention;

[0021] Figure 4 Schematic diagram of the structure of the clamping mechanism of the present invention;

[0022] Figure 5 For the present invention Figure 4 Schematic diagram of the rear side structure;

[0023] Figure 6 Partial schematic diagram of the structure of the pressing mechanism of the present invention;

[0024] Figure 7 Schematic diagram of the rear side structure of the present invention;

[0025] Figure 8 Front view schematic diagram of the present invention.

[0026] Wherein: 1. Cabinet; 2. Frame; 3. Laser welding head; 4. Shifting mechanism; 401. Mounting frame; 402. First screw; 403. First motor; 404. First shifting block; 405. Slide rail; 406. Slide block; 407. Horizontal plate; 408. Connecting block; 409. Vertical frame; 4010. Second screw; 4011. Second motor; 4012. Lifting rod; 4013. Horizontal frame; 4014. Third screw; 4015. Third motor; 4016. Second shifting block; 5. Rotary frame; 6. Rotating sleeve; 7. Rotating mechanism; 701. Gear ring; 702. Fourth motor; 703. Gear; 8. Connecting plate; 9. Carrier; 10. Clamping mechanism; 1001. Slide head; 1002. Clamping plate; 1003. Link; 1004. Connector; 1005. Bearing; 1006. Connecting piece; 1007. Assembly plate; 1008. Cylinder; 11. Pressing mechanism; 1101. Slide frame; 1102. Rack; 1103. Assembly block; 1104. Inner cylinder; 1105. Slide post; 1106. Spring; 1107. Pull button; 1108. Tooth block; 1109. Bracket; 1110. Threaded post; 1111. Knob; 1112. Pressing block; 12. Smoking mechanism; 1201. Fixed seat; 1202. Smoking pipe; 1203. Smoking head; 1204. Three-way pipe; 1205. Exhaust pump; 1206. First connecting pipe; 1207. Second connecting pipe; 1208. Purification box; 1209. Exhaust pipe; 1210. Filter frame; 1211. Filter plate; 13. Support; 14. Support plate; 15. Fixed column; 16. Control panel. Detailed implementation manners

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-8, a laser welding machine for connecting heating wires of a heater, comprising a cabinet 1. A machine frame 2 is fixedly connected to the rear end of the upper end surface of the cabinet 1. A laser welding head 3 is arranged inside the machine frame 2. A displacement mechanism 4 for displacing the laser welding head 3 is arranged on the machine frame 2. A rotating frame 5 is fixedly connected inside the machine frame 2. A rotating sleeve 6 is rotatably connected inside the rotating frame 5. A rotating mechanism 7 for driving the rotating sleeve 6 to rotate is arranged at the rear side of the rotating frame 5. A connecting plate 8 is fixedly connected inside the rotating sleeve 6. Two bearing frames 9 are symmetrically and fixedly connected to the front side wall of the connecting plate 8. A clamping mechanism 10 is arranged between the two bearing frames 9. Pressing mechanisms 11 are arranged on both of the two bearing frames 9. A smoking mechanism 12 is arranged outside the bearing frame 9. By rotating the rotating sleeve 6, the bearing frame 9 can be driven to rotate, so that the position adjustment of turning over the heater can be realized, and further it is convenient to weld the heating wires on both sides of the heater. The laser welding head 3 is a prior art and will not be elaborated here.

[0029] In order to perform laser welding at different positions, please refer to Figure 1 , Figure 2 and Figure 3, it is necessary to set up a displacement mechanism 4. The displacement mechanism 4 includes a mounting frame 401 fixed to the right end of the upper end face of the machine frame 2. A first screw rod 402 is rotatably connected inside the mounting frame 401. A first motor 403 is fixedly connected to the rear end of the mounting frame 401. The driving end of the first motor 403 is fixedly connected to the rear end of the first screw rod 402. A first displacement block 404 is threadedly connected to the first screw rod 402. A slide rail 405 is fixedly connected to the left end of the upper end face of the machine frame 2. A slider 406 is slidably connected to the slide rail 405. The first displacement block 404 and the slider 406 are detachably connected to a cross plate 407 by an internal hexagonal bolt. The cross plate 407 is detachably connected to a connecting block 408 by an internal hexagonal bolt. The front end of the connecting block 408 is fixedly connected to a vertical frame 409. A second screw rod 4010 is rotatably connected inside the vertical frame 409. A second motor 4011 is fixedly connected to the upper end face of the vertical frame 409. The driving end of the second motor 4011 is fixedly connected to the top end of the second screw rod 4010. A height-adjusting rod 4012 is threadedly connected to the second screw rod 4010. The bottom end of the height-adjusting rod 4012 is fixedly connected to a cross frame 4013. A third screw rod 4014 is rotatably connected inside the cross frame 4013. One end of the cross frame 4013 is fixedly connected to a third motor 4015. The driving end of the third motor 4015 is fixedly connected to the shaft end of the third screw rod 4014. A second displacement block 4016 is threadedly connected to the third screw rod 4014. The second displacement block 4016 is fixedly connected to the laser welding head 3; the displacement mechanism 4 is used to realize the position adjustment of the laser welding head 3 in three-dimensional space to meet the requirements of laser welding at different positions and improve the effect of the position adjustment of the laser welding head 3. The first motor 403 drives the first screw rod 402 to rotate inside the mounting frame 401. The first displacement block 404 on the first screw rod 402 moves along the axial direction of the screw rod accordingly. The movement of the first displacement block 404 drives the cross plate 407 to move, and synchronously drives the slider 406 to slide on the slide rail 405 to keep the cross plate 407 moving smoothly, thereby adjusting the position of the laser welding head 3 back and forth. The second motor 4011 drives the second screw rod 4010 to rotate inside the vertical frame 409. The height-adjusting rod 4012 on the second screw rod 4010 moves along the axial direction of the screw rod accordingly, realizing the position adjustment of the laser welding head 3 in the vertical direction. The third motor 4015 drives the third screw rod 4014 to rotate inside the cross frame 4013. The second displacement block 4016 on the third screw rod 4014 moves along the axial direction of the screw rod accordingly, driving the laser welding head 3 to make a lateral position adjustment.

[0030] In order to realize the turning adjustment of the heater, please refer to Figure 1 , Figure 2 and Figure 5, it is necessary to set up a rotating mechanism 7. The rotating mechanism 7 includes a gear ring 701 fixed to the rear end of the rotating sleeve 6 by an inner hexagon bolt. The upper end face of the cabinet 1 is fixedly connected with a fourth motor 702. The driving end of the fourth motor 702 is fixedly connected with a gear 703 meshed with the gear ring 701. The outer diameter of the gear ring 701 is larger than the inner diameter of the rotating frame 5. The rotating mechanism 7 is used to realize the turning adjustment of the heater so as to weld different surfaces of the heater. By driving the gear 703 to rotate through the fourth motor 702, the gear 703 is meshed with the gear ring 701, thereby driving the gear ring 701 to rotate. The gear ring 701 drives the rotating sleeve 6 to rotate, and the rotation of the rotating sleeve 6 drives the connecting plate 8 and the bearing frame 9 to rotate, realizing the turning adjustment of the heater, and can also adjust the clamping heater at different inclination angles.

[0031] In order to clamp and fix the heater, please refer to Figure 1 , Figure 4 and Figure 5 , it is necessary to set up a clamping mechanism 10. The clamping mechanism 10 includes two moving openings symmetrically formed on the connecting plate 8, and two sliding heads 1001 are slidably connected in the two moving openings. The front end of the sliding head 1001 is fixedly connected with a clamping plate 1002. The rear end of the clamping plate 1002 is rotatably connected with a connecting rod 1003. The rear end of the connecting rod 1003 is rotatably connected with a connecting head 1004. A bearing 1005 is arranged outside the connecting head 1004. The outer end of the connecting head 1004 is fixedly connected with the inner side wall of the inner ring of the bearing 1005. The outer end of the bearing 1005 is fixedly connected with a connecting piece 1006. An assembly plate 1007 is fixedly connected to the machine frame 2. A cylinder 1008 is fixedly connected to the assembly plate 1007. The driving end of the cylinder 1008 penetrates through the assembly plate 1007 and is fixedly connected with the connecting piece 1006. By pushing the connecting piece 1006 to move through the driving end of the cylinder 1008, the connecting piece 1006 is connected with the connecting head 1004 through the bearing 1005, and the connecting head 1004 is also connected with the clamping plate 1002 through the connecting rod 1003. Therefore, when the connecting piece 1006 moves, it drives the connecting rod 1003 and the clamping plate 1002 to move, which is convenient for automatically clamping and fixing the heater and ensures the stability of the heater during the welding process.

[0032] In order to ensure the stability during the welding of the heating wire, please refer to Figure 1 , Figure 4 and Figure 6, it is necessary to set up a pressing mechanism 11. The pressing mechanism 11 includes sliding frames 1101 respectively fixed on the outer side walls of two bearing frames 9. On the outer side walls of the sliding frames 1101, two racks 1102 are symmetrically and fixedly connected. An assembly block 1103 is slidably connected in the sliding frame 1101. An inner cylinder 1104 is fixedly connected in the assembly block 1103. A sliding column 1105 is slidably connected in the inner cylinder 1104. The inner end of the sliding column 1105 is fixedly connected with a spring 1106. The inner end of the spring 1106 is fixedly connected with the inner bottom wall of the inner cylinder 1104. The outer end of the sliding column 1105 is fixedly connected with a pull knob 1107. On the inner side wall of the pull knob 1107, two tooth blocks 1108 respectively cooperating with the racks 1102 are symmetrically and fixedly connected. The upper and lower ends of the assembly block 1103 are respectively connected with brackets 1109 through hexagon socket head cap screws. A threaded column 1110 is threadedly connected on the bracket 1109. The outer end of the threaded column 1110 is fixedly connected with a knob 1111. The inner end of the threaded column 1110 is fixedly connected with a pressing block 1112; The pressing mechanism 11 is used to further ensure the stability during the welding of the heating wire and prevent the heater from moving during the welding process. By pulling the sliding column 1105 through the pull knob 1107, the tooth block 1108 is separated from the rack 1102. At this time, the spring 1106 is in a stretched state, and then the position of the assembly block 1103 is adjusted. When the position is adjusted appropriately, the pull knob 1107 is released, and the spring 1106 pushes the sliding column 1105 to reset, so that the tooth block 1108 meshes with the rack 1102, locking the position of the assembly block 1103. Rotating the knob 1111 can drive the threaded column 1110 to be threadedly connected on the bracket 1109, and then adjust the position of the pressing block 1112 to achieve the pressing of the heating wire.

[0033] In order to suck the smoke during welding, please refer to Figure 1 、 Figure 2 and Figure 7, it is necessary to set up a smoke suction mechanism 12. The smoke suction mechanism 12 includes two fixed seats 1201 that are symmetrically and fixedly mounted on the rotary frame 5. A smoke suction pipe 1202 is fixedly connected inside each of the two fixed seats 1201. A set of smoke suction heads 1203 are evenly and fixedly connected to the smoke suction pipe 1202. A tee pipe 1204 is fixedly connected between the two smoke suction pipes 1202. An air extraction pump 1205 is fixedly connected to the upper end face of the machine frame 2. The input end of the air extraction pump 1205 is fixedly connected to the top end of the tee pipe 1204 through a first connecting pipe 1206. The output end of the air extraction pump 1205 is communicated with a purification box 1208 through a second connecting pipe 1207. An exhaust pipe 1209 is fixedly connected to the outer side wall of the purification box 1208. Two openings are symmetrically formed in the upper end face of the purification box 1208, and filter frames 1210 are respectively and fittingly arranged in the two openings. A filter plate 1211 is fixedly connected inside the filter frame 1210. A handle is fixedly connected to the upper end face of the filter frame 1210. The smoke suction mechanism 12 is used for sucking and purifying the smoke generated during welding to prevent the smoke from harming the operators and the environment. This mechanism generates negative pressure through the air extraction pump 1205 to suck the smoke into the smoke suction pipe 1202 and purify it through the purification box 1208. When the air extraction pump 1205 works, negative pressure is generated in the smoke suction pipe 1202 through the first connecting pipe 1206 and the tee pipe 1204. A set of smoke suction heads 1203 are evenly and fixedly connected to the smoke suction pipe 1202. The smoke is sucked into the smoke suction pipe 1202 through the smoke suction heads 1203. The smoke enters the input end of the air extraction pump 1205 through the tee pipe 1204 and the first connecting pipe 1206, and then enters the purification box 1208 through the second connecting pipe 1207 for purification. The purified air is discharged through the exhaust pipe 1209. The filter plate 1211 is used for filtering and purifying the smoke.

[0034] For the convenience of the operator's operation, please refer to Figure 1 and Figure 2 , a support 13 is fixedly connected to the right side wall of the front end of the cabinet 1. A support plate 14 is mounted on the support 13. A fixing column 15 is fixedly connected to the outer end of the upper end face of the support plate 14. An operation panel 16 is mounted on the fixing column 15. A circular opening matching the rotating sleeve 6 is formed on the rotary frame 5. The diameter of the outer ring at the front end of the rotating sleeve 6 is larger than the diameter of the circular opening. The operation panel 16 is used to facilitate the operator's operation and can control the working states and parameter settings of each component of the laser welding machine. The circular opening facilitates the rotation of the rotating sleeve 6.

[0035] In use, first place the heater between the carrier frames 9, then the driving end of the cylinder 1008 pushes the connecting piece 1006 to move. The movement of the connecting piece 1006 drives the bearing 1005 and the connecting head 1004 to move, thereby driving the connecting rod 1003 and the clamping plate 1002 to move. Then place the heating wire on the heater. Then pull the sliding column 1105 through the pull knob 1107 to separate the tooth block 1108 from the rack 1102. At this time, the spring 1106 is in a stretched state. Then adjust the position of the assembly block 1103. When the position is adjusted properly, release the pull knob 1107. The spring 1106 pushes the sliding column 1105 to reset, so that the tooth block 1108 meshes with the rack 1102 to lock the position of the assembly block 1103. Rotating the knob 1111 on the front can drive the threaded column 1110 to rotate and then adjust the position of the pressing block 1112 to realize the pressing of the heating wire. Then the displacement mechanism 4 is used to adjust the position of the laser welding head 3 in three-dimensional space to weld the heater and the heating wire. During the welding process, the air extraction pump 1205 works to generate negative pressure in the smoke suction pipe 1202 through the first connecting pipe 1206 and the three-way pipe 1204. A group of smoke suction heads 1203 are evenly and fixedly connected to the smoke suction pipe 1202. The smoke is sucked into the smoke suction pipe 1202 through the smoke suction heads 1203. The smoke enters the input end of the air extraction pump 1205 through the three-way pipe 1204 and the first connecting pipe 1206, and then enters the purification box 1208 through the second connecting pipe 1207 for purification. The purified air is discharged through the exhaust pipe 1209. The filter plate 1211 is used to filter and purify the smoke. When welding the heating wire on the back of the heater after the front welding is completed, the fourth motor 702 drives the gear 703 to rotate. The gear 703 is meshed and connected with the gear ring 701, thereby driving the gear ring 701 to rotate. The gear ring 701 drives the rotating sleeve 6 to rotate. The rotation of the rotating sleeve 6 drives the connecting plate 8 and the carrier frame 9 to rotate to realize the turning adjustment of the heater. Then place the heating wire on the back of the heater, and then rotate the knob 1111 on the back to make the pressing block 1112 press the heating wire. Then start the displacement mechanism 4 and the laser welding head 3 to weld the heating wire on the back of the heater.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding machine for connecting a heating wire of a heater, comprising a cabinet (1), characterized in that, The rear end of the upper end face of the cabinet (1) is fixedly connected with a machine frame (2). A laser welding head (3) is arranged in the machine frame (2). A displacement mechanism (4) for displacing the laser welding head (3) is arranged on the machine frame (2). A rotating frame (5) is fixedly connected in the machine frame (2). A rotating sleeve (6) is rotatably connected in the rotating frame (5). A rotating mechanism (7) for driving the rotating sleeve (6) to rotate is arranged at the rear side of the rotating frame (5). A connecting plate (8) is fixedly connected in the rotating sleeve (6). Two bearing frames (9) are symmetrically and fixedly connected to the front side wall of the connecting plate (8). A clamping mechanism (10) is arranged between the two bearing frames (9). A pressing mechanism (11) is arranged on each of the two bearing frames (9). A smoke suction mechanism (12) is arranged outside the bearing frame (9).

2. The laser welding machine for connecting the heating wire of the heater according to claim 1, wherein: The displacement mechanism (4) includes a mounting frame (401) fixed to the right end of the upper end face of the machine frame (2). A first screw rod (402) is rotatably connected in the mounting frame (401). A first motor (403) is fixedly connected to the rear end of the mounting frame (401). The driving end of the first motor (403) is fixedly connected to the rear end of the first screw rod (402). A first displacement block (404) is threadedly connected to the first screw rod (402). A slide rail (405) is fixedly connected to the left end of the upper end face of the machine frame (2). A slider (406) is slidably connected to the slide rail (405). The first displacement block (404) and the slider (406) are detachably connected with a cross plate (407) through an inner hexagonal bolt.

3. A laser welding machine for connecting a heating wire of a heater according to claim 2, characterized in that: The cross plate (407) is detachably connected with a connecting block (408) through an inner hexagonal bolt. The front end of the connecting block (408) is fixedly connected with a vertical frame (409). A second screw rod (4010) is rotatably connected in the vertical frame (409). The upper end face of the vertical frame (409) is fixedly connected with a second motor (4011). The driving end of the second motor (4011) is fixedly connected to the top end of the second screw rod (4010). A height-adjusting rod (4012) is threadedly connected to the second screw rod (4010). The bottom end of the height-adjusting rod (4012) is fixedly connected with a horizontal frame (4013). A third screw rod (4014) is rotatably connected in the horizontal frame (4013). One end of the horizontal frame (4013) is fixedly connected with a third motor (4015). The driving end of the third motor (4015) is fixedly connected to the shaft end of the third screw rod (4014). A second displacement block (4016) is threadedly connected to the third screw rod (4014). The second displacement block (4016) is fixedly connected with the laser welding head (3).

4. A laser welding machine for connecting a heating wire of a heater according to claim 1, characterized in that: The rotating mechanism (7) includes a gear ring (701) fixed to the rear end of the rotating sleeve (6) through an inner hexagonal bolt. The upper end face of the cabinet (1) is fixedly connected with a fourth motor (702). The driving end of the fourth motor (702) is fixedly connected with a gear (703) meshingly connected with the gear ring (701). The outer diameter of the gear ring (701) is larger than the inner diameter of the rotating frame (5).

5. A laser welding machine for connecting a heating wire of a heater according to claim 1, characterized in that: The clamping mechanism (10) includes two moving openings symmetrically formed in the connecting plate (8), and sliders (1001) are slidably connected in both of the two moving openings. A clamping plate (1002) is fixedly connected to the front end of the slider (1001). A connecting rod (1003) is rotatably connected to the rear end of the clamping plate (1002). A connecting head (1004) is rotatably connected to the rear end of the connecting rod (1003). A bearing (1005) is provided on the outer side of the connecting head (1004). The outer end of the connecting head (1004) is fixedly connected to the inner side wall of the inner ring of the bearing (1005). A connecting piece (1006) is fixedly connected to the outer end of the bearing (1005). An assembly plate (1007) is fixedly connected to the machine frame (2). An air cylinder (1008) is fixedly connected to the assembly plate (1007). The driving end of the air cylinder (1008) penetrates through the assembly plate (1007) and is fixedly connected to the connecting piece (1006).

6. A laser welding machine for connecting a heating wire of a heater according to claim 1, characterized in that: The pressing mechanism (11) includes sliding frames (1101) respectively fixed on the outer side walls of the two bearing frames (9). Two racks (1102) are symmetrically and fixedly connected to the outer side wall of the sliding frame (1101). An assembly block (1103) is slidably connected in the sliding frame (1101). An inner cylinder (1104) is fixedly connected in the assembly block (1103). A sliding column (1105) is slidably connected in the inner cylinder (1104). A spring (1106) is fixedly connected to the inner end of the sliding column (1105). The inner end of the spring (1106) is fixedly connected to the inner bottom wall of the inner cylinder (1104). A pull button (1107) is fixedly connected to the outer end of the sliding column (1105). Two tooth blocks (1108) respectively cooperating with the racks (1102) are symmetrically and fixedly connected to the inner side wall of the pull button (1107). Brackets (1109) are respectively connected to the upper and lower ends of the assembly block (1103) through hexagon socket head cap screws. A threaded column (1110) is threadedly connected to the bracket (1109). A knob (1111) is fixedly connected to the outer end of the threaded column (1110). A pressing block (1112) is fixedly connected to the inner end of the threaded column (1110).

7. A laser welding machine for connecting a heating wire of a heater according to claim 1, characterized in that: The smoking mechanism (12) includes two fixed seats (1201) symmetrically and fixedly connected to the rotating frame (5). Smoking pipes (1202) are fixedly connected in both of the two fixed seats (1201). A group of smoking heads (1203) are uniformly fixedly connected to the smoking pipes (1202). A tee pipe (1204) is fixedly connected between the two smoking pipes (1202). An air extraction pump (1205) is fixedly connected to the upper end surface of the machine frame (2). The input end of the air extraction pump (1205) is fixedly connected to the top end of the tee pipe (1204) through a first connecting pipe (1206). The output end of the air extraction pump (1205) is communicated with a purification box (1208) through a second connecting pipe (1207). An exhaust pipe (1209) is fixedly connected to the outer side wall of the purification box (1208).

8. A laser welding machine for connecting a heating wire of a heater, according to claim 7, characterized in that: The upper end face of the purification box (1208) is symmetrically provided with two openings, and filter frames (1210) are respectively and correspondingly arranged in the two openings. A filter plate (1211) is fixedly connected in the filter frame (1210), and a handle is fixedly connected to the upper end face of the filter frame (1210).

9. A laser welding machine for connecting a heating wire of a heater, according to claim 1, characterized in that: A support (13) is fixedly connected to the right side wall at the front end of the cabinet (1). A support plate (14) is installed on the support (13). A fixing column (15) is fixedly connected to the outer end of the upper end face of the support plate (14), and an operation panel (16) is installed on the fixing column (15).

10. A laser welding machine for connecting a heating wire of a heater, as claimed in claim 1, wherein: A circular opening matching the rotating sleeve (6) is formed in the rotating frame (5), and the diameter of the outer ring at the front end of the rotating sleeve (6) is larger than the diameter of the circular opening.

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