Welding device for automobile air conditioner evaporator

Abstract

The invention discloses a welding device for an automobile air conditioner evaporator, and relates to the technical field of automobile part machining, the welding device comprises a processing mechanism, and a fixing mechanism is fixedly mounted at the top of the processing mechanism. When the welding device is used, after the automobile air conditioner evaporator is welded through the welding device, a sliding block is driven to move in a movable frame under the action of a second motor and a reciprocating lead screw, so that a spray head is driven to move back and forth, and meanwhile, external air enters a cooling box under the action of a conveying pump; under the action of a cooling device, a cooling pipe and a circulating pump, air entering the cooling box can be cooled, and the air is sprayed out of a spray head through a conveying pipe to cool the welded air conditioner evaporator, so that a worker can smoothly take out the automobile air conditioner evaporator, the risk of scalding is avoided, and the working efficiency is improved. And the production efficiency of the automobile air conditioner evaporator is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a welding device for an automobile air-conditioning evaporator. Background Art

[0002] In the modern automobile industry, the automobile air conditioning system is an important part of improving driving comfort. Its performance directly affects the overall quality of the car. The automobile air conditioning evaporator is one of the core components of the system. Its main function is to evaporate the refrigerant into gas, thereby realizing heat exchange and regulating the temperature in the car. Therefore, the manufacturing process and welding technology of this component are particularly important.

[0003] In the prior art, when the automobile air-conditioning evaporator is welded by a welding device, the temperature of the surface of the air-conditioning evaporator will be very high due to welding, and there is no device for quickly cooling and dissipating the heat of the welded air-conditioning evaporator surface, resulting in the inability of workers to quickly remove the welded air-conditioning evaporator, which will seriously affect the production efficiency of the automobile air-conditioning evaporator, and there will be a risk of burns during the removal process. Summary of the invention

[0004] The purpose of the present invention is to provide a welding device for an automobile air-conditioning evaporator to solve the problem raised in the above background that during the traditional welding of the air-conditioning evaporator, the surface temperature of the air-conditioning evaporator is too high and it cannot be quickly removed, thereby affecting the production efficiency of the automobile air-conditioning evaporator.

[0005] To achieve the above object, the present invention provides the following technical solution: a welding device for an automobile air-conditioning evaporator, comprising a processing mechanism, a fixing mechanism is fixedly installed on the top of the processing mechanism, and a welding mechanism is fixedly installed on the top of the processing mechanism; The processing mechanism includes a workbench, two installation boxes are fixedly installed on the top of the workbench, the first telescopic rod is fixedly installed on the bottom of the inner walls of the two installation boxes, the inner walls of the two installation boxes are movably embedded with movable frames, and the bottom of the movable frames is fixedly connected to the telescopic end of the first telescopic rod, the second motor is fixedly installed on one side of the outer walls of the two movable frames, the inner walls of the two movable frames are movably embedded with sliders, the inner walls of the two sliders are movably inserted with reciprocating screws, and the outer walls of the reciprocating screws are fixedly connected to the output end of the second motor, a nozzle is fixedly installed on the bottom of one of the two sliders, a cooling box is fixedly installed on the outer wall of the workbench, a cooling pipe is arranged inside the cooling box, a cooling device is fixedly installed on the top of the cooling box, and the outer wall of the cooling device is fixedly connected to the outer wall of the cooling pipe.

[0006] Preferably, a circulation pump is fixedly installed on the top of the cooling box, and the outer wall of the circulation pump is fixedly connected to the outer wall of the cooling pipe, a delivery pump is fixedly installed on the top of the cooling box, a delivery pipe is fixedly connected to the top of the cooling box, and the outer wall of the delivery pipe is fixedly connected to the outer wall of the nozzle, and the outer wall of the delivery pipe is fixedly connected to the outer wall of the delivery pump.

[0007] Preferably, a high-pressure nozzle is fixedly installed on the bottom of the other of the two sliders, a heating box is fixedly installed on the outer wall of the workbench, a heating tube is arranged inside the heating box, a power supply is fixedly installed on the top of the heating box, and the outer wall of the power supply is fixedly connected to the outer wall of the heating tube.

[0008] Preferably, a high-pressure pump is fixedly installed on the top of the heating box, an air pipe is fixedly connected to the top of the heating box, and the outer wall of the air pipe is fixedly connected to the outer wall of the high-pressure nozzle, the outer wall of the high-pressure pump is fixedly connected to the outer wall of the air pipe, and an installation groove is opened on the top of the workbench.

[0009] Preferably, four auxiliary wheels are fixedly installed on the bottom of the inner wall of the mounting groove, a rotating table is arranged between the outer walls of the four auxiliary wheels, a first gear is fixedly sleeved on the outer wall of the rotating table, a first motor is fixedly installed on the bottom of the inner wall of the mounting groove, a second gear is fixedly sleeved on the output end of the first motor, and the outer wall of the second gear is meshingly connected with the outer wall of the first gear.

[0010] Preferably, the fixing mechanism includes four fixing boxes, the outer walls of the four fixing boxes are each provided with a plurality of ventilation slots, the inner walls of the four fixing boxes are each provided with two fixing plates movably embedded therein, the inner walls of the four fixing boxes are each provided with two sets of limit springs, and one side of the outer wall of the fixing plate is fixedly connected to one side of the outer wall of the limit spring.

[0011] Preferably, the welding mechanism includes a cross slide, a movable block is movably embedded in the inner surface wall of the cross slide, a third motor is fixedly installed on one side of the outer wall of the movable block, a first transmission wheel is fixedly sleeved on the output end of the third motor, and a fixing groove is opened on the top of the movable block.

[0012] Preferably, a bearing is fixedly inserted into the inner surface wall of the fixed groove, a second telescopic rod is fixedly inserted into the inner surface wall of the bearing, a second transmission wheel is fixedly sleeved on the outer surface wall of the second telescopic rod, and the outer surface wall of the second transmission wheel is meshingly connected with the outer surface wall of the first transmission wheel, and a mounting plate is fixedly installed on the telescopic end of the second telescopic rod.

[0013] Preferably, a fourth motor is fixedly installed on the top of the mounting plate, and the output end of the fourth motor is fixedly sleeved with a first meshing wheel, the inner surface wall of the mounting plate is movably inserted with a welding device body, the outer surface wall of the welding device body is fixedly sleeved with a second meshing wheel, and the outer surface wall of the second meshing wheel is meshingly connected with the outer surface wall of the first meshing wheel.

[0014] Preferably, the top of the rotating table is fixedly connected to the bottom of the fixed box, and the top of the working table is fixedly connected to the bottom of the cross slide.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In use, after the welding of the automobile air-conditioning evaporator is completed by the welding device, the slider is first driven to move inside the movable frame under the action of the second motor and the reciprocating screw, thereby driving the nozzle to move back and forth. At the same time, under the action of the delivery pump, the external air enters the cooling box, and under the action of the cooling device, the cooling pipe and the circulating pump, the air entering the cooling box can be cooled and sprayed from the nozzle through the delivery pipe to cool the welded air-conditioning evaporator, so that the staff can smoothly take out the automobile air-conditioning evaporator to avoid the risk of scalding, thereby greatly improving the production efficiency of the automobile air-conditioning evaporator.

[0016] 2. During use of the present invention, when it is necessary to weld the air-conditioning evaporator, the parts of the air-conditioning evaporator are first spliced ​​and placed inside the fixing box. At the same time, under the action of the limit spring and the fixing plate, the evaporator parts can be effectively fixed to avoid displacement during welding. Subsequently, under the action of the first motor, the first gear and other structures, the evaporator parts can be driven to move. Moreover, under the action of the power supply, the heating tube, the high-pressure pump and other structures, the dust and impurities on the outer wall of the parts can be cleaned, thereby improving the cleanliness of the surface of the air-conditioning evaporator parts, thereby improving the subsequent welding quality, and further improving the production quality of the automobile air-conditioning evaporator.

[0017] 3. When the present invention is in use and the air-conditioning evaporator needs to be welded, the position and angle of the welding device body can be adjusted through the cooperation of the cross slide, the movable block, the third motor, the second telescopic rod and other structures, thereby greatly improving the welding quality of the air-conditioning evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A stereogram of a welding device for an automobile air-conditioning evaporator according to the present invention; Figure 2 A three-dimensional diagram of a processing mechanism used in a welding device for an automobile air-conditioning evaporator according to the present invention; Figure 3A cross-sectional view of a processing mechanism used in a welding device for an automobile air-conditioning evaporator according to the present invention; Figure 4 This is a disassembled diagram of a processing mechanism used in a welding device for an automobile air-conditioning evaporator according to the present invention; Figure 5 This is a partial exploded view of a processing mechanism used in a welding device for an automobile air-conditioning evaporator according to the present invention; Figure 6 This is a disassembled diagram of a fixing mechanism used in a welding device for an automobile air-conditioning evaporator according to the present invention; Figure 7 This is a disassembled diagram of a welding mechanism used in a welding device for an automobile air-conditioning evaporator according to the present invention; Figure 8 The present invention is a partial exploded view of a welding mechanism used in a welding device for an automobile air-conditioning evaporator.

[0019] In the figure: 1, processing mechanism; 11, workbench; 12, mounting groove; 121, auxiliary wheel; 122, rotating table; 123, first gear; 124, first motor; 125, second gear; 13, mounting box; 131, first telescopic rod; 132, movable frame; 133, second motor; 134, slider; 135, reciprocating screw rod; 16, high-pressure nozzle; 161, heating box; 162, heating pipe; 163, power supply; 164, high-pressure pump; 165, gas pipe; 17, nozzle; 171, cooling box; 172, cooling pipe; 173 , cooling device; 174, circulating pump; 175, delivery pump; 176, delivery pipe; 2, fixing mechanism; 21, fixing box; 211, ventilation slot; 22, fixing plate; 23, limit spring; 3, welding mechanism; 31, cross slide; 32, movable block; 321, third motor; 322, first transmission wheel; 323, fixing slot; 324, bearing; 325, second telescopic rod; 326, second transmission wheel; 33, mounting plate; 331, fourth motor; 332, first meshing wheel; 333, welding device body; 334, second meshing wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1, refer to Figure 1-Figure 8As shown: The present invention provides a welding device for an automobile air-conditioning evaporator, comprising a processing mechanism 1, a fixing mechanism 2 is fixedly installed on the top of the processing mechanism 1, and a welding mechanism 3 is fixedly installed on the top of the processing mechanism 1; The processing mechanism 1 includes a workbench 11, two installation boxes 13 are fixedly installed on the top of the workbench 11, the inner wall bottoms of the two installation boxes 13 are fixedly installed with a first telescopic rod 131, the inner surface walls of the two installation boxes 13 are movably embedded with a movable frame 132, and the bottom of the movable frame 132 is fixedly connected to the telescopic end of the first telescopic rod 131, and the outer wall of the two movable frames 132 is fixedly installed with a second motor 133 on one side, the inner surface walls of the two movable frames 132 are movably embedded with a slider 134, the inner surface walls of the two sliders 134 are movably inserted with a reciprocating screw rod 135, and the outer surface wall of the reciprocating screw rod 135 is fixedly connected to the output end of the second motor 133, and the bottom of one of the two sliders 134 is fixedly installed There is a nozzle 17, a cooling box 171 is fixedly installed on the outer wall of the workbench 11, a cooling pipe 172 is arranged inside the cooling box 171, a cooling device 173 is fixedly installed on the top of the cooling box 171, and the outer wall of the cooling device 173 is fixedly connected to the outer wall of the cooling pipe 172, a circulating pump 174 is fixedly installed on the top of the cooling box 171, and the outer wall of the circulating pump 174 is fixedly connected to the outer wall of the cooling pipe 172, a delivery pump 175 is fixedly installed on the top of the cooling box 171, a delivery pipe 176 is fixedly connected to the top of the cooling box 171, and the outer wall of the delivery pipe 176 is fixedly connected to the outer wall of the nozzle 17, and the outer wall of the delivery pipe 176 is fixedly connected to the outer wall of the delivery pump 175.

[0022] In this embodiment, after the automobile air-conditioning evaporator is welded and transported to a suitable position, the nozzle 17 is first adjusted to a suitable height under the action of the first telescopic rod 131, and then a negative pressure is generated inside the cooling box 171 under the action of the delivery pump 175, and the external air is absorbed into the cooling box 171. At the same time, under the action of the circulation pump 174, the coolant in the cooling pipe 172 circulates, thereby absorbing the heat of the air entering the cooling box 171 to complete the cooling and cooling process. Subsequently, the coolant that absorbs the heat is transported to the interior of the cooling device 173, and is cooled by the fan or other heat dissipation device inside the cooling device 173. , the coolant can be treated to dissipate heat and cool down the coolant, so that it can continue to absorb heat from the air for a long time, and then the cooled air can be transported to the nozzle 17 and sprayed out under the action of the delivery pump 175 and the delivery pipe 176. At the same time, under the action of the second motor 133, the reciprocating screw rod 135 is driven to rotate, thereby driving the slider 134 to reciprocate inside the movable frame 132, and driving the nozzle 17 to reciprocate, so that the cold air sprayed from the nozzle 17 can fully contact the automobile air-conditioning evaporator and absorb the heat generated by its welding, thereby achieving the effect of cooling the wall and avoiding the risk of burns due to excessive temperature.

[0023] Embodiment 2, according to Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5As shown, a high-pressure nozzle 16 is fixedly installed at the bottom of the other of the two sliders 134, a heating box 161 is fixedly installed on the outer wall of the workbench 11, a heating tube 162 is arranged inside the heating box 161, a power supply 163 is fixedly installed on the top of the heating box 161, and the outer wall of the power supply 163 is fixedly connected to the outer wall of the heating tube 162, a high-pressure pump 164 is fixedly installed on the top of the heating box 161, a gas pipe 165 is fixedly connected to the top of the heating box 161, and the outer wall of the gas pipe 165 is fixedly connected to the outer wall of the high-pressure nozzle 16, the outer wall of the high-pressure pump 164 is fixedly connected to the outer wall of the gas pipe 165, and the outer wall of the high-pressure pump 164 is fixedly connected to the outer wall of the gas pipe 165, and the top of the workbench 11 is provided with a mounting groove 12, and four auxiliary A rotating platform 122 is arranged between the outer walls of the auxiliary wheels 121, the outer wall of the rotating platform 122 is fixedly sleeved with a first gear 123, the bottom of the inner wall of the mounting groove 12 is fixedly mounted with a first motor 124, the output end of the first motor 124 is fixedly sleeved with a second gear 125, and the outer wall of the second gear 125 is meshedly connected with the outer wall of the first gear 123, the fixing mechanism 2 includes four fixing boxes 21, the outer walls of the four fixing boxes 21 are each provided with a plurality of ventilation slots 211, the inner walls of the four fixing boxes 21 are each movably embedded with two fixing plates 22, the inner walls of the four fixing boxes 21 are each provided with two sets of limit springs 23, and one side of the outer wall of the fixing plate 22 is fixedly connected with one side of the outer wall of the limit spring 23.

[0024] In this embodiment, when it is necessary to weld the automobile air-conditioning evaporator, first, under the operation of the staff, the finished evaporator parts are spliced ​​and placed in the fixing box 21. Under the action of the limit spring 23 (a spring with a suitable elastic coefficient is selected), the fixing plate 22 can be moved to the middle, so as to fix the evaporator parts. Then, under the action of the first motor 124, the second gear 125 is driven to rotate. At the same time, under the action of the first gear 123, the rotating table 122 is driven to rotate. Under the action of the auxiliary wheel 121, the rotating table 122 can rotate more smoothly. When the rotating table 122 drives the evaporator parts to move to a suitable After the heating box 161 is in position, negative pressure is generated inside the heating box 161 under the action of the high-pressure pump 164, and the external air is sucked into the heating box 161. At the same time, under the action of the power supply 163 and the heating tube 162, the air can be heated, and then it is ejected from the high-pressure nozzle 16 through the high-pressure pump 164 and the air pipe 165. Under the action of the second motor 133 and the reciprocating screw rod 135, the slider 134 and the high-pressure nozzle 16 can reciprocate inside the movable frame 132, so that the high-temperature and high-pressure air can fully contact the components of the automobile air-conditioning evaporator and remove dust and impurities on the surface, which greatly improves the subsequent welding quality of the air-conditioning evaporator.

[0025] Embodiment 3, according to Figure 7 as well as Figure 8 As shown, the welding mechanism 3 includes a cross slide 31, the inner surface wall of the cross slide 31 is movably embedded with a movable block 32, one side of the outer wall of the movable block 32 is fixedly installed with a third motor 321, the output end of the third motor 321 is fixedly sleeved with a first transmission wheel 322, a fixing groove 323 is opened on the top of the movable block 32, a bearing 324 is fixedly inserted into the inner surface wall of the fixing groove 323, a second telescopic rod 325 is fixedly inserted into the inner surface wall of the bearing 324, and a second transmission wheel 326 is fixedly sleeved on the outer surface wall of the second telescopic rod 325, and the outer surface wall of the second transmission wheel 326 is aligned with the outer surface wall of the first transmission wheel 322. The telescopic end of the second telescopic rod 325 is fixedly installed with a mounting plate 33, and the top of the mounting plate 33 is fixedly installed with a fourth motor 331. The output end of the fourth motor 331 is fixedly sleeved with a first meshing wheel 332. The inner surface wall of the mounting plate 33 is movably inserted with a welding device body 333, and the outer surface wall of the welding device body 333 is fixedly sleeved with a second meshing wheel 334, and the outer surface wall of the second meshing wheel 334 is meshingly connected with the outer surface wall of the first meshing wheel 332. The top of the rotating table 122 is fixedly connected to the bottom of the fixed box 21, and the top of the workbench 11 is fixedly connected to the bottom of the cross slide 31.

[0026] In this embodiment, after the automobile air-conditioning evaporator parts after cleaning are transported to the appropriate position, the welding device body 333 is driven to the appropriate position under the action of the cross slide 31, and then the first transmission wheel 322 is driven to rotate under the action of the third motor 321, and at the same time, the second telescopic rod 325 is driven to rotate under the action of the second transmission wheel 326 and the bearing 324, and the horizontal lateral rotation of the welding device body 333 is adjusted to a suitable angle, and then the first meshing wheel 332 is driven to rotate under the action of the fourth motor 331, and the horizontal longitudinal rotation of the welding device body 333 can be driven under the action of the second meshing wheel 334, thereby completing the position and angle adjustment of the welding device body 333, so that it can be more convenient for welding the automobile air-conditioning evaporator.

[0027] The working principle of the whole mechanism is as follows: when it is necessary to weld the automobile air-conditioning evaporator, firstly, under the operation of the staff, the finished evaporator parts are spliced ​​and placed inside the fixing box 21. Under the action of the limit spring 23, the fixing plate 22 can be moved to the middle, so as to fix the evaporator parts. Then, under the action of the first motor 124, the second gear 125 is driven to rotate. At the same time, under the action of the first gear 123, the rotating table 122 is driven to rotate. Under the action of the auxiliary wheel 121, the rotating table 122 can rotate more smoothly. When the rotating table 122 drives the evaporator parts to move to the appropriate position, negative pressure is generated inside the heating box 161 under the action of the high-pressure pump 164. The external air is sucked into the heating box 161, and the air can be heated under the action of the power supply 163 and the heating tube 162, and then ejected from the high-pressure nozzle 16 through the high-pressure pump 164 and the air pipe 165. Under the action of the second motor 133 and the reciprocating screw rod 135, the slider 134 and the high-pressure nozzle 16 can reciprocate inside the movable frame 132, so that the high-temperature and high-pressure air can fully contact the parts of the automobile air-conditioning evaporator and remove the dust and impurities on the surface. After the dust and impurities on the surface of the evaporator parts are removed, the rotating table 122 is driven to rotate under the action of the first motor 124, the first gear 123 and other structures, and the evaporator parts that have been cleaned are driven to move to the appropriate position. Then, under the action of the cross slide 31, the welding device body 333 is driven to a suitable position, and then under the action of the third motor 321, the first transmission wheel 322 is driven to rotate, and at the same time, under the action of the second transmission wheel 326 and the bearing 324, the second telescopic rod 325 is driven to rotate, and the welding device body 333 is adjusted to rotate horizontally to a suitable angle, and then under the action of the fourth motor 331, the first meshing wheel 332 is driven to rotate, and under the action of the second meshing wheel 334, the welding device body 333 can be driven to rotate horizontally and longitudinally, thereby completing the position and angle adjustment of the welding device body 333, and welding the evaporator parts. After the automobile air-conditioning evaporator is completed and transported to a suitable position, Under the action of a telescopic rod 131, the nozzle 17 is adjusted to a suitable height, and then, under the action of the delivery pump 175, a negative pressure is generated inside the cooling box 171, and the external air is absorbed into the cooling box 171. At the same time, under the action of the circulation pump 174, the coolant in the cooling pipe 172 circulates, thereby absorbing the heat of the air entering the cooling box 171 to complete the cooling and cooling treatment. Subsequently, the coolant that absorbs the heat is transported to the cooling device 173, and the coolant can be cooled and cooled by the fan or other heat dissipation device inside the cooling device 173, so that it can continue to absorb heat from the air for a long time. Subsequently, the air that has been cooled and cooled is cooled by the delivery pump 175 and the delivery pipe 176.It can be transported to the nozzle 17 and sprayed out. At the same time, under the action of the second motor 133, the reciprocating screw 135 is driven to rotate, thereby driving the slider 134 to reciprocate inside the movable frame 132, and driving the nozzle 17 to reciprocate, so that the cold air sprayed from the nozzle 17 can fully contact the automobile air conditioner evaporator, thereby achieving heat dissipation and cooling treatment of the automobile air conditioner evaporator.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for automobile air-conditioning evaporator, characterized in that: It comprises a processing mechanism (1), a fixing mechanism (2) is fixedly mounted on the top of the processing mechanism (1), and a welding mechanism (3) is fixedly mounted on the top of the processing mechanism (1); The processing mechanism (1) comprises a workbench (11), two installation boxes (13) are fixedly installed on the top of the workbench (11), a first telescopic rod (131) is fixedly installed on the bottom of the inner wall of the two installation boxes (13), a movable frame (132) is movably embedded in the inner surface wall of the two installation boxes (13), and the bottom of the movable frame (132) is fixedly connected to the telescopic end of the first telescopic rod (131), a second motor (133) is fixedly installed on one side of the outer wall of the two movable frames (132), and a slider (134) is movably embedded in the inner surface wall of the two movable frames (132). A reciprocating screw (135) is movably inserted into the inner wall of each of the two sliders (134), and the outer wall of the reciprocating screw (135) is fixedly connected to the output end of the second motor (133); a nozzle (17) is fixedly installed on the bottom of one of the two sliders (134); a cooling box (171) is fixedly installed on the outer wall of the workbench (11); a cooling pipe (172) is arranged inside the cooling box (171); a cooling device (173) is fixedly installed on the top of the cooling box (171), and the outer wall of the cooling device (173) is fixedly connected to the outer wall of the cooling pipe (172).

2. The welding device for automobile air conditioner evaporator according to claim 1 is characterized in that: A circulation pump (174) is fixedly installed on the top of the cooling box (171), and the outer wall of the circulation pump (174) is fixedly connected to the outer wall of the cooling pipe (172); a delivery pump (175) is fixedly installed on the top of the cooling box (171); a delivery pipe (176) is fixedly connected to the top of the cooling box (171), and the outer wall of the delivery pipe (176) is fixedly connected to the outer wall of the nozzle (17); and the outer wall of the delivery pipe (176) is fixedly connected to the outer wall of the delivery pump (175).

3. The welding device for automobile air conditioner evaporator according to claim 2 is characterized in that: A high-pressure nozzle (16) is fixedly mounted on the bottom of another of the two sliding blocks (134); a heating box (161) is fixedly mounted on the outer wall of the workbench (11); a heating tube (162) is arranged inside the heating box (161); a power source (163) is fixedly mounted on the top of the heating box (161); and the outer wall of the power source (163) is fixedly connected to the outer wall of the heating tube (162).

4. The welding device for automobile air conditioner evaporator according to claim 3 is characterized in that: A high-pressure pump (164) is fixedly installed on the top of the heating box (161), and an air supply pipe (165) is fixedly connected to the top of the heating box (161), and the outer wall of the air supply pipe (165) is fixedly connected to the outer wall of the high-pressure nozzle (16), and the outer wall of the high-pressure pump (164) is fixedly connected to the outer wall of the air supply pipe (165), and a mounting groove (12) is provided on the top of the workbench (11).

5. The welding device for automobile air conditioner evaporator according to claim 4 is characterized in that: Four auxiliary wheels (121) are fixedly mounted on the bottom of the inner wall of the installation groove (12); a rotating platform (122) is arranged between the outer walls of the four auxiliary wheels (121); a first gear (123) is fixedly sleeved on the outer wall of the rotating platform (122); a first motor (124) is fixedly mounted on the bottom of the inner wall of the installation groove (12); a second gear (125) is fixedly sleeved on the output end of the first motor (124); and the outer wall of the second gear (125) is meshingly connected with the outer wall of the first gear (123).

6. The welding device for automobile air-conditioning evaporator according to claim 5 is characterized in that: The fixing mechanism (2) comprises four fixing boxes (21), the outer walls of the four fixing boxes (21) are each provided with a plurality of ventilation slots (211), the inner walls of the four fixing boxes (21) are each provided with two fixing plates (22) movably embedded therein, the inner walls of the four fixing boxes (21) are each provided with two sets of limit springs (23), and one side of the outer wall of the fixing plate (22) is fixedly connected to one side of the outer wall of the limit spring (23).

7. The welding device for automobile air conditioner evaporator according to claim 6 is characterized in that: The welding mechanism (3) comprises a cross slide (31), a movable block (32) is movably embedded in the inner surface wall of the cross slide (31), a third motor (321) is fixedly mounted on one side of the outer wall of the movable block (32), a first transmission wheel (322) is fixedly sleeved on the output end of the third motor (321), and a fixing groove (323) is provided on the top of the movable block (32).

8. The welding device for automobile air conditioner evaporator according to claim 7 is characterized in that: A bearing (324) is fixedly inserted into the inner surface wall of the fixing groove (323), a second telescopic rod (325) is fixedly inserted into the inner surface wall of the bearing (324), a second transmission wheel (326) is fixedly sleeved on the outer surface wall of the second telescopic rod (325), and the outer surface wall of the second transmission wheel (326) is meshingly connected with the outer surface wall of the first transmission wheel (322), and a mounting plate (33) is fixedly mounted on the telescopic end of the second telescopic rod (325).

9. The welding device for automobile air conditioner evaporator according to claim 8, characterized in that: A fourth motor (331) is fixedly mounted on the top of the mounting plate (33); a first meshing wheel (332) is fixedly sleeved on the output end of the fourth motor (331); a welding device body (333) is movably inserted into the inner surface wall of the mounting plate (33); a second meshing wheel (334) is fixedly sleeved on the outer surface wall of the welding device body (333); and the outer surface wall of the second meshing wheel (334) is meshingly connected with the outer surface wall of the first meshing wheel (332).

10. The welding device for automobile air conditioner evaporator according to claim 9, characterized in that: The top of the rotating table (122) is fixedly connected to the bottom of the fixed box (21), and the top of the working table (11) is fixedly connected to the bottom of the cross slide (31).

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