Evaporator assembly welding tool and use method thereof

Abstract

The invention relates to the technical field of welding tooling, and discloses an evaporator assembly welding tooling and a method for using the same, comprising a transmission mechanism, wherein the transmission mechanism comprises a base, a plurality of support frames are fixedly connected to the top of the base, and a top plate is fixedly connected to the top of the plurality of support frames; the evaporator assembly is preheated by utilizing the residual heat generated by a gas flame spray gun during welding, and the preheating can uniformly increase the temperature of the entire evaporator assembly, thereby reducing the temperature difference between the welding area and the surrounding area; when welding the evaporator assembly, the gas flame spray gun is started, and the gas flame spray gun generates a high-temperature flame and sprays it toward the evaporator assembly, thereby heating the brazing material on the evaporator assembly to the melting temperature, thereby connecting the workpieces together; after the gas flame spray gun is started, the temperature of the surrounding gas is increased, and the increased gas is transmitted to the surface of the workpiece through a conveying pipe and an air guide hood, thereby preheating the workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of welding tooling, in particular to an evaporator component welding tooling and a use method thereof. Background Art

[0002] The evaporator is an important component of the vehicle air conditioner. Its structure generally includes the evaporator pipe, outer small tube, connecting rod, U-shaped fixing plate, etc. During the production process, the above parts need to be assembled first, and then the brazing material is put on the pipe connection that needs to be welded, and then the brazing material is heated and melted by flame, so that the brazing material can fill the weld and form a welding connection.

[0003] When welding the evaporator assembly, high temperature will be generated in the welding area, while the temperature in the surrounding area is lower. This temperature gradient will cause the material in the welding area to expand, while the material in the surrounding area is relatively cold, which will cause a difference in thermal stress between the welding area and the surrounding area, thereby increasing the risk of deformation and cracking of the welded parts. To address the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an evaporator assembly welding tool, including a transmission mechanism, the transmission mechanism includes a base, the top of the base is fixedly connected to a plurality of support frames, and the tops of the plurality of support frames are fixedly connected to a top plate;

[0005] The clamping mechanism comprises a plurality of rollers rotatably connected to the bottom of the top plate, a circular plate is fixedly sleeved on the outer wall of the roller, and a plurality of L-shaped transmission rods are slidably connected to the circular plate;

[0006] The welding mechanism has a plurality of support rods fixedly connected to the top of the top plate, a fixed sleeve is fixedly connected to one end of the plurality of support rods close to each other, a delivery pipe is fixedly connected to the inner wall of the delivery pipe, and an air guide hood is fixedly connected to the end of the delivery pipe.

[0007] Preferably, the transmission mechanism also includes a mounting groove opened on the top of the base, a mounting sleeve is fixedly connected to the bottom inner wall of the mounting groove, a driving motor is fixedly connected to the inner wall of the mounting sleeve, a rotating shaft 1 is fixedly connected to the output shaft of the driving motor, the right end of the rotating shaft 1 is rotatably connected to the right inner wall of the mounting groove, a half gear is fixedly provided on the outer wall of the rotating shaft 1, and the driving motor is started, and the driving motor drives the rotating shaft 1 and the half gear to rotate, and intermittent transmission can be achieved after the half gear rotates.

[0008] Preferably, the transmission mechanism also includes a rotating shaft 2 which is rotatably connected to the two support frames at the front end of the top of the base and is close to each other. A control gear is fixedly sleeved on the outer wall of the rotating shaft 2, and the control gear is meshed with the half gear. A rotating shaft 3 is rotatably connected to the two support frames at the rear end of the top of the base and is close to each other on one side. A round roller is fixedly sleeved on the rotating shaft 3, and a conveyor belt 1 is sleeved on the round roller and the rotating shaft 2. A number of workpieces are arranged on the top of the conveyor belt 1. The workpieces are placed on the conveyor belt 1, and then the driving motor is started. The driving motor drives the rotating shaft 1 and the half gear to rotate. The half gear is meshed with the control gear, and the control gear is driven to rotate under the action of the half gear. After the control gear rotates, it drives the rotating shaft 2 to rotate, thereby driving the conveyor belt 1 to achieve intermittent transmission. Intermittent motion can help reduce thermal deformation during welding. Too long or too short welding time will affect the welding quality of the tooling. Continuous welding will cause the welding area to be heated for too long, which may cause thermal deformation of the workpiece. Intermittent motion can not only ensure that the solder has enough time to be heated and melted, but also ensure that the heating time of the evaporator is not too long, thereby ensuring the quality during welding.

[0009] Preferably, the clamping mechanism also includes a circular transmission block slidably sleeved on a plurality of L-shaped transmission rods, and pulleys are fixedly sleeved on the outer walls of the circular transmission block and the round roller, respectively, and a transmission belt is wound around the two pulleys. When the transmission belt rotates, it can drive the rotating shaft three to rotate, and when the rotating shaft three rotates, it can drive the round roller and the pulley to rotate. Under the rotation of the pulley, the transmission belt is driven to rotate, and when the transmission belt rotates, it can drive the circular transmission block to rotate, and then the circular transmission block drives the circular disk through a plurality of L-shaped transmission rods to realize right-angle transmission, thereby providing rotational power for the rotating roller through the circular disk.

[0010] Preferably, the clamping mechanism also includes a conveyor belt 2 wound on a plurality of rollers, the bottom of the top plate is rotatably connected to a limiting roller, the outer wall of the limiting roller contacts the outer wall of the conveyor belt 2, a plurality of fixing rods are fixedly connected to the outer wall of the conveyor belt 2, and a plurality of fixing rods are hingedly connected to a clamping block at one end away from the conveyor belt 2. After the roller rotates, it drives the conveyor belt 2 to rotate, and after the conveyor belt 2 rotates, it drives a plurality of fixing rods installed on the outer surface of the conveyor belt 2 to rotate. After the plurality of fixing rods rotate, they can drive the clamping block to contact the workpiece, thereby clamping and fixing the workpiece. The clamping block is hingedly connected to the fixing rod, which can adapt to changes in the shapes of different workpieces, thereby completing the clamping and fixing work for different workpieces, thereby improving the adaptability of the tooling, and clamping and fixing the workpiece can avoid uneven heating of the workpiece due to movement or offset of the workpiece during welding, thereby ensuring the welding quality of the evaporator assembly.

[0011] Preferably, the welding mechanism also includes a rotating rod rotatably connected to the top of the top plate, the rotating rod passes through the top plate and is fixedly connected to the rotating roller, a sliding groove is opened on the outer wall of the rotating rod, a rectangular fixed block is fixedly connected to the top of the top plate, a ring plate is fixedly connected to the top of the rectangular fixed block, a sliding rod is slidably connected in the ring plate, a connecting strip is fixedly connected to the outer wall of the sliding rod, a strip connecting plate is hinged at the end of the connecting strip, the right side of the strip connecting plate extends into the sliding groove and is slidably connected to the sliding groove, the rotating roller can drive the rotating rod to rotate when it rotates, after the rotating rod rotates, the strip connecting plate is restricted by the shape of the sliding groove, and thus completes the up and down reciprocating motion, the strip connecting plate can drive the connecting strip to move during the up and down reciprocating movement, and after the connecting strip moves, it can drive the sliding rod to slide on the inner wall of the annular plate.

[0012] Preferably, the welding mechanism includes an annular slider slidably mounted on the outer wall of the support rod, the outer wall of the annular slider is fixedly connected to the strip connecting plate, the left and right ends of the slide rod are respectively fixedly connected to arc plates, and a number of gas flame spray guns are respectively fixedly connected to the outer walls of the two arc plates. As the strip connecting plate rises and falls, the arc plate and the gas flame spray gun can be driven to swing back and forth up and down. After the arc plate and the gas flame spray gun swing back and forth up and down, the welding area can be heated more evenly to avoid local overheating or overcooling, which is helpful to control the welding temperature and improve the welding quality, reduce the concentration of thermal stress, help reduce the generation of welding deformation and cracks, ensure the consistency of the welding quality of the tooling to the evaporator, and improve the welding quality of the tooling to the evaporator assembly.

[0013] An evaporator assembly welding tool and a method of using the same include the following steps:

[0014] S1: When welding the evaporator assembly, the gas flame spray gun is started, and the gas flame spray gun generates a high-temperature flame to spray toward the evaporator assembly, thereby heating the brazing material on the evaporator assembly to the melting temperature, thereby connecting the workpieces together. After the gas flame spray gun is started, the surrounding gas temperature will increase, and the increased gas will be transmitted to the surface of the workpiece through the delivery pipe and the gas guide cover, thereby preheating the workpiece;

[0015] S2: Place the workpiece on the conveyor belt 1, and then start the drive motor. The drive motor drives the rotating shaft 1 and the half gear to rotate. The half gear meshes with the control gear. Under the action of the half gear, the control gear is driven to rotate. After the control gear rotates, the rotating shaft 2 is driven to rotate, thereby driving the conveyor belt 1 to achieve intermittent transmission.

[0016] S3: The roller can drive the rotating rod to rotate when rotating. After the rotating rod rotates, the strip connecting plate is restricted by the shape of the slide groove, and then completes the up and down reciprocating motion. During the up and down reciprocating movement of the strip connecting plate, it can drive the connecting bar to move. After the connecting bar moves, it can drive the slide bar to slide on the inner wall of the annular plate. With the rise and fall of the strip connecting plate, it can drive the arc plate and the gas flame spray gun to swing back and forth up and down.

[0017] The present invention has the following beneficial effects:

[0018] The present invention utilizes the waste heat generated by the gas flame spray gun during the welding process to preheat the evaporator component. The preheating can make the temperature of the entire evaporator component uniformly increase, and reduce the temperature difference between the welding area and the surrounding area. In this way, the temperature gradient generated during the brazing process will be reduced, reducing the risk of thermal stress generation. When welding the evaporator component, the gas flame spray gun is started, and the gas flame spray gun generates a high-temperature flame and sprays it to the evaporator component, thereby heating the brazing material on the evaporator component to the melting temperature, thereby connecting the workpieces together. After the gas flame spray gun is started, the surrounding gas temperature will be increased, and the increased gas will be transmitted to the workpiece surface through the delivery pipe and the gas guide hood, thereby preheating the workpiece. The preheating can make the materials in the welding area and the surrounding area closer in temperature, reducing the thermal expansion difference between them. In this way, the thermal expansion stress generated during the welding process will be reduced, which helps to reduce deformation and cracks of the welded parts.

[0019] When the evaporator assembly needs to be welded, the workpiece is placed on the conveyor belt 1, and then the driving motor is started. The driving motor drives the rotating shaft 1 and the half gear to rotate. The half gear is meshed with the control gear. Under the action of the half gear, the control gear is driven to rotate. After the control gear rotates, the rotating shaft 2 is driven to rotate, thereby driving the conveyor belt 1 to achieve intermittent transmission. Intermittent motion can help reduce thermal deformation during welding. Too long or too short welding time will affect the welding quality of the tooling. Continuous welding will cause the welding area to be heated for too long, which may cause thermal deformation of the workpiece. Intermittent motion can not only ensure that the solder has enough time to be heated and melted, but also ensure that the heating time of the evaporator is not too long, thereby ensuring the quality during welding.

[0020] The present invention can drive the rotating shaft three to rotate when the transmission belt one rotates, and the rotating shaft three can drive the circular roller and the pulley to rotate when the rotation action of the pulley drives the transmission belt to rotate. After the transmission belt rotates, it can drive the circular transmission block to rotate, and then the circular transmission block drives the circular disk to realize right-angle transmission through a plurality of L-shaped transmission rods, thereby providing rotational power for the rotating roller through the circular disk. After the rotating roller rotates, it drives the transmission belt two to rotate. After the transmission belt two rotates, it drives a plurality of fixed rods installed on the outer surface of the transmission belt two to rotate. After the plurality of fixed rods rotate, they can drive the clamping block to contact with the workpiece, thereby clamping and fixing the workpiece. The clamping block is hingedly connected to the fixed rod, which can adapt to changes in the shapes of different workpieces, thereby completing the clamping and fixing work for different workpieces, improving the adaptability of the tooling, and clamping and fixing the workpiece can avoid uneven heating of the workpiece due to movement or offset of the workpiece during welding, thereby ensuring the welding quality of the evaporator assembly.

[0021] The rotating roller of the present invention can drive the rotating rod to rotate when it rotates. After the rotating rod rotates, the strip connecting plate is restricted by the shape of the slide groove, and then completes the up and down reciprocating motion. In the process of up and down reciprocating movement, the strip connecting plate can drive the connecting strip to move. After the connecting strip moves, it can drive the slide bar to slide on the inner wall of the annular plate. As the strip connecting plate rises and falls, the arc plate and the gas flame spray gun can be driven to swing back and forth up and down. After the arc plate and the gas flame spray gun swing back and forth up and down, the welding area can be heated more evenly to avoid local overheating or overcooling, which is helpful to control the welding temperature and improve the welding quality, reduce the concentration of thermal stress, help reduce the generation of welding deformation and cracks, ensure the consistency of the welding quality of the tooling to the evaporator, and improve the welding quality of the tooling to the evaporator assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the transmission mechanism of the present invention;

[0025] Figure 3 For the present invention Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0026] Figure 4 It is a schematic diagram of the clamping mechanism of the present invention;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of B;

[0028] Figure 6 It is a schematic diagram of the welding mechanism of the present invention;

[0029] Figure 7 It is a partial structural schematic diagram of the welding mechanism of the present invention;

[0030] Figure 8 It is an enlarged schematic diagram of C in 7 of the present invention;

[0031] Fig. 9 It is a schematic diagram of the working process of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] In the figure: 1. Transmission mechanism; 101. Base; 102. Support frame; 103. Top plate; 104. Mounting slot; 105. Mounting sleeve; 106. Driving motor; 107. Rotating shaft 1; 108. Half gear; 109. Rotating shaft 2; 110. Control gear; 111. Rotating shaft 3; 112. Round roller; 113. Transmission belt 1; 114. Workpiece; 2. Clamping mechanism; 201. Rotating roller; 202. Round plate; 203. L-shaped transmission rod; 204. Round transmission block; 205. Pulley; 206, transmission belt; 207, transmission belt 2; 208, limiting roller; 209, fixing rod; 210, clamping block; 3, welding mechanism; 301, support rod; 302, fixing sleeve; 303, conveying pipe; 304, air guide cover; 305, rotating rod; 306, slide groove; 307, rectangular fixing block; 308, annular plate; 309, slide rod; 310, connecting strip; 311, strip connecting plate; 312, annular slider; 313, arc plate; 314, gas flame spray gun. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For example, see Figure 1 - Figure 3 The present invention is an evaporator assembly welding tool, comprising a transmission mechanism 1, the transmission mechanism 1 comprises a base 101, the top of the base 101 is fixedly connected with a plurality of support frames 102, and the tops of the plurality of support frames 102 are fixedly connected with a top plate 103;

[0036] The clamping mechanism 2, the bottom of the top plate 103 is rotatably connected to a plurality of rollers 201, a circular plate 202 is fixedly sleeved on the outer wall of the roller 201, and a plurality of L-shaped transmission rods 203 are slidably connected to the circular plate 202;

[0037] The welding mechanism 3 has a plurality of support rods 301 fixedly connected to the top of the top plate 103, a fixed sleeve 302 fixedly connected to one end of the plurality of support rods 301 close to each other, a delivery pipe 303 fixedly connected to the inner wall of the delivery pipe 303, and an air guide hood 304 fixedly connected to the end of the delivery pipe 303.

[0038] The transmission mechanism 1 also includes a mounting groove 104 opened on the top of the base 101, a mounting sleeve 105 is fixedly connected to the bottom inner wall of the mounting groove 104, a driving motor 106 is fixedly connected to the inner wall of the mounting sleeve 105, a rotating shaft 107 is fixedly connected to the output shaft of the driving motor 106, the right end of the rotating shaft 107 is rotatably connected to the right inner wall of the mounting groove 104, a half gear 108 is fixedly sleeved on the outer wall of the rotating shaft 107, the driving motor 106 is started, and the driving motor 106 drives the rotating shaft 107 and the half gear 108 to rotate, and intermittent transmission can be achieved after the half gear 108 rotates.

[0039] The transmission mechanism 1 also includes a second shaft 109 rotatably connected to the side of the two support frames 102 close to each other at the front end of the top of the base 101. A control gear 110 is fixedly sleeved on the outer wall of the second shaft 109. The control gear 110 is meshed with the half gear 108. A third shaft 111 is rotatably connected to the side of the two support frames 102 close to each other at the rear end of the top of the base 101. A round roller 112 is fixedly sleeved on the third shaft 111. A conveyor belt 113 is sleeved on the round roller 112 and the second shaft 109. A plurality of workpieces 114 are arranged on the top of the conveyor belt 113. The workpieces 114 are placed on the conveyor belt 113, and then the drive motor 106 is started. The drive motor 106 drives the shaft One 107 and the half gear 108 rotate, and the half gear 108 is meshed with the control gear 110. Under the action of the half gear 108, the control gear 110 is driven to rotate. After the control gear 110 rotates, it drives the rotating shaft 109 to rotate, thereby driving the transmission belt one 113 to achieve intermittent transmission. Intermittent movement can help reduce thermal deformation during welding. Too long or too short welding time will affect the welding quality of the tooling. Continuous welding will cause the welding area to be heated for too long, which may cause thermal deformation of the workpiece. Intermittent movement can not only ensure that the solder has enough time to be heated and melted, but also ensure that the heating time of the evaporator is not too long, thereby ensuring the quality during welding.

[0040] For example 2, please refer to Figure 4 - Fig. 9The present invention is a welding tool for an evaporator component. On the basis of Example 1, the clamping mechanism 2 also includes a circular transmission block 204 slidably sleeved on a plurality of L-shaped transmission rods 203. Pulleys 205 are fixedly sleeved on the outer walls of the circular transmission block 204 and the round roller 112, respectively. A transmission belt 206 is wound around the two pulleys 205. When the transmission belt 1 113 rotates, it can drive the rotating shaft 3 111 to rotate. When the rotating shaft 3 111 rotates, it can drive the round roller 112 and the pulley 205 to rotate. Under the rotation action of the pulley 205, the transmission belt 206 is driven to rotate. When the transmission belt 206 rotates, it can drive the circular transmission block 204 to rotate. Then, the circular transmission block 204 drives the circular disk 202 through the plurality of L-shaped transmission rods 203 to realize right-angle transmission, thereby providing the rotating roller 201 with rotational power through the circular disk 202.

[0041] The clamping mechanism 2 also includes a conveyor belt 207 wound on a plurality of rollers 201. The bottom of the top plate 103 is rotatably connected to a limiting roller 208. The outer wall of the limiting roller 208 contacts the outer wall of the conveyor belt 207. A plurality of fixing rods 209 are fixedly connected to the outer wall of the conveyor belt 207. The ends of the plurality of fixing rods 209 away from the conveyor belt 207 are respectively hinged with clamping blocks 210. When the roller 201 rotates, the conveyor belt 207 is driven to rotate. When the conveyor belt 207 rotates, the plurality of fixing rods 209 installed on the outer surface of the conveyor belt 207 are driven to rotate. When several fixing rods 209 rotate, the clamping block 210 can be driven to contact the workpiece 114 after the fixing rods 209 rotate, so that the workpiece 114 is clamped and fixed. The clamping block 210 is hingedly connected to the fixing rod 209, which can adapt to the changes in the shape of different workpieces 114, so that different workpieces can be clamped and fixed, thereby improving the adaptability of the tooling. Clamping and fixing the workpiece 114 can avoid uneven heating of the workpiece due to movement or displacement of the workpiece during welding, thereby ensuring the welding quality of the evaporator assembly.

[0042] The welding mechanism 3 also includes a rotating rod 305 rotatably connected to the top of the top plate 103, the rotating rod 305 penetrates the top plate 103 and is fixedly connected to the roller 201, a sliding groove 306 is provided on the outer wall of the rotating rod 305, a rectangular fixed block 307 is fixedly connected to the top of the top plate 103, a ring plate 308 is fixedly connected to the top of the rectangular fixed block 307, a sliding rod 309 is slidably connected in the ring plate 308, a connecting strip 310 is fixedly connected to the outer wall of the sliding rod 309, and a strip is hinged at the end of the connecting strip 310. shaped connecting plate 311, the right side of the strip connecting plate 311 extends into the slide groove 306 and is slidably connected to the slide groove 306. When the roller 201 rotates, it can drive the rotating rod 305 to rotate. After the rotating rod 305 rotates, the strip connecting plate 311 is restricted by the shape of the slide groove 306, and then completes the up and down reciprocating motion. During the up and down reciprocating movement, the strip connecting plate 311 can drive the connecting bar 310 to move. After the connecting bar 310 moves, it can drive the sliding rod 309 to slide on the inner wall of the annular plate 308.

[0043] The welding mechanism 3 includes an annular slider 312 slidably mounted on the outer wall of the support rod 301, the outer wall of the annular slider 312 is fixedly connected to the strip connecting plate 311, the left and right ends of the slide rod 309 are respectively fixedly connected with an arc plate 313, and the outer walls of the two arc plates 313 are respectively fixedly connected with a plurality of gas flame spray guns 314. As the strip connecting plate 311 rises and falls, the arc plate 313 and the gas flame spray gun 314 can be driven to swing back and forth. After the arc plate 313 and the gas flame spray gun 314 swing back and forth, the welding area can be heated more evenly to avoid local overheating or overcooling, which is helpful to control the welding temperature and improve the welding quality, reduce the concentration of thermal stress, and help reduce the generation of welding deformation and cracks, thereby ensuring the consistency of the welding quality of the evaporator by the tooling and improving the welding quality of the evaporator assembly by the tooling.

[0044] The manufacturing method of the manufacturing device comprises the following steps:

[0045] S1: When welding the evaporator assembly, the gas flame spray gun 314 is started, and the gas flame spray gun 314 generates a high-temperature flame to spray toward the evaporator assembly, thereby heating the brazing material on the evaporator assembly to a melting temperature, thereby connecting the workpieces together. After the gas flame spray gun 314 is started, the temperature of the surrounding gas is increased, and the increased gas is transmitted to the surface of the workpiece 114 through the delivery pipe 303 and the gas guide cover 304, thereby preheating the workpiece 114;

[0046] S2: Place the workpiece 114 on the conveyor belt 113, and then start the drive motor 106. The drive motor 106 drives the rotating shaft 107 and the half gear 108 to rotate. The half gear 108 is meshed with the control gear 110. Under the action of the half gear 108, the control gear 110 is driven to rotate. After the control gear 110 rotates, the rotating shaft 2 109 is driven to rotate, thereby driving the conveyor belt 113 to achieve intermittent transmission;

[0047] S3: The rotating roller 201 can drive the rotating rod 305 to rotate when rotating. After the rotating rod 305 rotates, the strip connecting plate 311 is restricted by the shape of the slide groove 306, and then completes the up and down reciprocating motion. During the up and down reciprocating motion, the strip connecting plate 311 can drive the connecting bar 310 to move. After the connecting bar 310 moves, it can drive the sliding rod 309 to slide on the inner wall of the annular plate 308. With the rise and fall of the strip connecting plate 311, the arc plate 313 and the gas flame spray gun 314 can be driven to swing back and forth up and down.

[0048] A specific application of this embodiment is: when the evaporator assembly needs to be welded, the workpiece 114 is placed on the conveyor belt 1 113, and then the drive motor 106 is started. The drive motor 106 drives the shaft 107 and the half gear 108 to rotate. The half gear 108 is meshed with the control gear 110. Under the action of the half gear 108, the control gear 110 is driven to rotate. After the control gear 110 rotates, the shaft 2 109 is driven to rotate, thereby driving the conveyor belt 1 113 to achieve intermittent transmission. When the conveyor belt 1 113 rotates, it can drive the shaft 3 111 to rotate. The shaft 3 After the rotation of 111, the round roller 112 and the pulley 205 can be driven to rotate. Under the rotation of the pulley 205, the transmission belt 206 can be driven to rotate. After the transmission belt 206 rotates, it can drive the circular transmission block 204 to rotate. Then, the circular transmission block 204 drives the circular disk 202 through a plurality of L-shaped transmission rods 203 to realize right-angle transmission, thereby providing the rotating roller 201 with the power of rotation through the circular disk 202. After the rotating roller 201 rotates, it drives the transmission belt 207 to rotate. After the transmission belt 207 rotates, it drives a plurality of fixed parts installed on the outer surface of the transmission belt 207. The rod 209 rotates, and after the plurality of fixed rods 209 rotate, the clamping block 210 can be driven to contact the workpiece 114, so that the workpiece 114 is clamped and fixed. The clamping block 210 is hingedly connected to the fixed rod 209, and can adapt to the changes in the shape of different workpieces 114, so that different workpieces can be clamped and fixed. When the conveyor belt 113 transfers the workpiece 114 to the bottom of the air guide cover 304, the plurality of gas flame spray guns 314 are started, and the plurality of gas flame spray guns 314 generate high-temperature flames to spray the workpiece 114. When the roller 201 rotates, it can drive the rotating rod 305 Rotate. After the rotating rod 305 rotates, the strip connecting plate 311 is restricted by the shape of the slide groove 306, and then completes the up and down reciprocating motion. During the up and down reciprocating motion, the strip connecting plate 311 can drive the connecting bar 310 to move. After the connecting bar 310 moves, it can drive the slide bar 309 to slide on the inner wall of the annular plate 308. As the strip connecting plate 311 rises and falls, it can drive the arc plate 313 and the gas flame spray gun 314 to swing back and forth up and down. After the arc plate 313 and the gas flame spray gun 314 swing back and forth up and down, the welding area can be heated more evenly.

[0049] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An evaporator assembly welding tool, comprising a transmission mechanism (1), the transmission mechanism (1) comprising a base (101), the top of the base (101) being fixedly connected to a plurality of support frames (102), the tops of the plurality of support frames (102) being fixedly connected to a top plate (103), a second rotating shaft (109) being rotatably connected to a side of two support frames (102) close to each other at the top front end of the base (101), the outer wall of the second rotating shaft (109) being fixedly sleeved with a control A control gear (110) is meshed with a half gear (108); two support frames (102) at the top rear end of the base (101) are rotatably connected to a rotating shaft (111) on one side close to each other; a round roller (112) is fixedly sleeved on the rotating shaft (111); a conveyor belt (113) is sleeved on the round roller (112) and the rotating shaft (109); a plurality of workpieces (114) are arranged on the top of the conveyor belt (113); and the conveyor belt (113) is characterized in that: Also includes: A clamping mechanism (2), wherein the bottom of the top plate (103) is rotatably connected to a plurality of rollers (201), a circular plate (202) is fixedly sleeved on the outer wall of the roller (201), and a plurality of L-shaped transmission rods (203) are slidably connected to the circular plate (202); A welding mechanism (3), wherein a plurality of support rods (301) are fixedly connected to the top of the top plate (103), a fixing sleeve (302) is fixedly connected to one end of the plurality of support rods (301) close to each other, a delivery pipe (303) is fixedly connected to the inner wall of the fixing sleeve (302), and an air guide cover (304) is fixedly connected to the end of the delivery pipe (303); The welding mechanism (3) further comprises a rotating rod (305) rotatably connected to the top of the top plate (103), the rotating rod (305) passing through the top plate (103) and fixedly connected to the rotating roller (201), the top of the top plate (103) being fixedly connected to a rectangular fixed block (307), the top of the rectangular fixed block (307) being fixedly connected to an annular plate (308), a sliding rod (309) being slidably connected inside the annular plate (308), a connecting strip (310) being fixedly connected to the outer wall of the sliding rod (309), a strip connecting plate (311) being hingedly connected to the end of the connecting strip (310), a sliding groove (306) being provided on the outer wall of the rotating rod (305), the right side of the strip connecting plate (311) extending into the sliding groove (306) and being slidably connected to the sliding groove (306), the strip connecting plate (311) being restricted by the shape of the sliding groove (306) to complete up and down reciprocating motion; The welding mechanism (3) comprises an annular sliding block (312) slidably mounted on the outer wall of the support rod (301); the outer wall of the annular sliding block (312) is fixedly connected to the strip connecting plate (311); the left end and the right end of the sliding rod (309) are respectively fixedly connected to an arc plate (313); and the outer walls of the two arc plates (313) are respectively fixedly connected to a plurality of gas flame spray guns (314); The clamping mechanism (2) further comprises a circular transmission block (204) slidably sleeved on a plurality of L-shaped transmission rods (203), and pulleys (205) are respectively fixedly sleeved on the outer walls of the circular transmission block (204) and the round roller (112), and a transmission belt (206) is wound around the two pulleys (205); The clamping mechanism (2) also includes a conveyor belt 2 (207) wound around a plurality of rollers (201); the bottom of the top plate (103) is rotatably connected to a limiting roller (208); the outer wall of the limiting roller (208) contacts the outer wall of the conveyor belt 2 (207); a plurality of fixing rods (209) are fixedly connected to the outer wall of the conveyor belt 2 (207); and a clamping block (210) is hingedly connected to one end of the plurality of fixing rods (209) away from the conveyor belt 2 (207).

2. The evaporator assembly welding tool according to claim 1, characterized in that: The transmission mechanism (1) further comprises a mounting groove (104) formed on the top of the base (101); a mounting sleeve (105) is fixedly connected to the inner wall of the bottom of the mounting groove (104); a driving motor (106) is fixedly connected to the inner wall of the mounting sleeve (105); a rotating shaft (107) is fixedly connected to the output shaft of the driving motor (106); the right end of the rotating shaft (107) is rotatably connected to the right inner wall of the mounting groove (104); and a half gear (108) is fixedly provided on the outer wall of the rotating shaft (107).

3. The method for using the evaporator assembly welding tool according to claim 2, characterized in that: The steps include: S1: When welding the evaporator assembly, the gas flame spray gun (314) is started, and the gas flame spray gun (314) generates a high-temperature flame and sprays it toward the evaporator assembly, thereby heating the brazing material on the evaporator assembly to a melting temperature, thereby connecting the workpieces together. After the gas flame spray gun (314) is started, the temperature of the surrounding gas is increased, and the increased gas is transmitted to the surface of the workpiece (114) through the delivery pipe (303) and the gas guide cover (304), thereby preheating the workpiece (114); S2: placing the workpiece (114) on the conveyor belt 1 (113), and then starting the drive motor (106), the drive motor (106) drives the rotating shaft 1 (107) and the half gear (108) to rotate, the half gear (108) is meshed with the control gear (110), and the control gear (110) is driven to rotate under the action of the half gear (108), and the control gear (110) is driven to rotate after the control gear (110) rotates, thereby driving the rotating shaft 2 (109) to rotate, thereby driving the conveyor belt 1 (113) to achieve intermittent transmission; S3: When the rotating roller (201) rotates, it can drive the rotating rod (305) to rotate. After the rotating rod (305) rotates, the strip connecting plate (311) is restricted by the shape of the slide groove (306), thereby completing the up and down reciprocating motion. During the up and down reciprocating motion, the strip connecting plate (311) can drive the connecting bar (310) to move. After the connecting bar (310) moves, it can drive the sliding rod (309) to slide on the inner wall of the annular plate (308). As the strip connecting plate (311) rises and falls, it can drive the arc plate (313) and the gas flame spray gun (314) to swing back and forth up and down.

Images