Automatic soldering method

Abstract

The present invention relates to the technical field of soldering, and discloses an automatic soldering method, comprising a soldering equipment body, a soldering module for mounting a soldering iron tip being slidably provided on the soldering equipment body, an air purification component being provided below the soldering module, and a preheating component being provided on one side of the soldering module. The present invention provides a method for automatically soldering, wherein the motor body is started to drive the fan body to rotate, so that harmful gases generated by the solder can enter through an air intake pipe, and the harmful gases can be automatically purified under the filtration of the filter element body and the bag dust removal cone. These harmful substances can be removed by the air purification component of the soldering equipment body, thereby reducing the risk of workers inhaling these substances for a long time. Moreover, the soldering equipment body can not only effectively absorb and filter the smoke or dust generated during the welding process, but also adsorb and filter the toxic and harmful gases and dust therein, thereby preventing environmental pollution and protecting the health of workers and the surrounding environment.

Description

Technical Field

[0001] The invention relates to the technical field of soldering, in particular to an automatic soldering method. Background Art

[0002] The soldering machine is a mechanical device equipped with a large transparent window for observing the entire soldering process. It plays a very important role in product development and process curve optimization. The temperature control adopts a high-precision intuitive intelligent controller, which can be programmed for perfect curve control, precise temperature control, simple parameter setting, and easy operation. The soldering machine has changed the practice of relying on natural cooling or pulling the PCB board out of the soldering machine for cooling. It makes the reflow soldering process curve more perfect and avoids damage to surface mount devices and soldering displacement problems.

[0003] CN110355436B includes a frame, a welding head and a tin wire positioning tube. A first guide seat is fixedly arranged on the frame, a first slide is provided on the first guide seat, the first slide and the first guide seat slide together along the X-axis, a second guide seat is fixedly arranged on the first slide, a second slide is provided on the second guide seat, the second slide and the second guide seat slide together along the Y-axis, the welding head and the second slide slide synchronously slide along the Y-axis, a first driving mechanism for driving the first slide to slide and a second driving mechanism for driving the second slide to slide are provided on the frame, the first driving mechanism includes a first screw rod, a first screw rod nut, and a first motor for driving the first screw rod to rotate, the first screw rod is rotatably installed in the first guide seat, the first screw rod nut is sleeved on the first screw rod, the first slide and the first screw rod nut are fixedly connected or integrally arranged, the soldering machine of this invention can adjust the welding head and perform soldering on circuit boards of different specifications.

[0004] In the prior art including the above-mentioned patents, existing soldering machines generate a large amount of harmful gases, such as welding smoke and carbon monoxide, when soldering workpieces. Long-term inhalation can cause damage to the workers' respiratory system, nervous system, liver and kidneys. The harmful gases are directly discharged into the working environment without being collected and filtered, which will lead to a decline in air quality and produce irritating odors and smoke, which will not only reduce the workers' work efficiency and satisfaction, but also directly affect the quality and production efficiency of the products. In addition, the accumulation of harmful gases in the workshop may cause safety accidents such as fire or explosion, posing certain safety hazards. Summary of the Invention

[0005] The problem to be solved by the present invention is that it is difficult for existing soldering equipment to purify harmful gases generated by soldering.

[0006] To solve the above technical problems, the technical solution of the present invention is: an automatic soldering method, comprising a soldering equipment body, a soldering module for mounting a soldering iron tip being slidably disposed on the soldering equipment body, an air purification component being disposed below the soldering module, and a preheating component being disposed on one side of the soldering module;

[0007] A coil-type tin hanging column is installed on the top of the soldering equipment body, and a tin breaking pusher is fixedly provided on the coil-type tin hanging column. A soldering base is fixedly provided on the bottom of the soldering equipment body, and two soldering stations are fixedly provided on the soldering base. A tin wire loading seat is fixedly provided on one side of the soldering module, and a tin tube is fixedly provided on the tin wire loading seat. The output end of the tin breaking pusher is provided with tin wire extending into the inside of the tin tube, and each of the soldering stations is provided with a workpiece;

[0008] The preheating assembly includes a heat transfer liquid pipe, and heat transfer liquid is arranged inside the heat transfer liquid pipe;

[0009] The air purification component includes a support base fixedly arranged on the soldering module, and the support base is located on one side of the tin wire loading base, an air inlet pipe is fixedly arranged on the support base, and the bottom end of the air inlet pipe is located on one side of the tin loading tube, a fixing ring is fixedly arranged on the arc-shaped outer wall of the tin loading tube, and the fixing ring is located above the tin wire loading base, a fixing cylinder is fixedly arranged on the fixing ring, and the fixing cylinder is sleeved on the outside of the tin loading tube, the bottom end of the fixing cylinder is connected to the top end of the air inlet pipe, an inner sliding ring is slidingly arranged on the inner wall of the fixing cylinder, a dust bag cone is fixedly arranged between the inner sliding ring and the arc-shaped outer wall of the fixing ring, and the inner wall of the fixing cylinder is connected to the loading tube. A filter element body is fixedly arranged between the tin tubes, the heat transfer liquid pipe is fixed to the top of the filter element body, a plurality of threaded air guide tubes are fixedly arranged on the inner wall of the heat transfer liquid pipe, and each threaded air guide tube is connected to the inside of the fixed cylinder, an air outlet pipe is fixedly arranged on the top of the heat transfer liquid pipe, and each threaded air guide tube is connected to the air outlet pipe, a drive shaft is rotated on the inner wall of the air outlet pipe, a fan body is fixedly arranged at the bottom end of the drive shaft, an air outlet is opened at the top of the air outlet pipe, a motor body is installed on one side of the soldering module, and the motor body is located above the drive shaft, and the output end of the motor body and the drive shaft are connected by a rotating shaft;

[0010] A cleaning assembly is provided on one side of the fixed cylinder, and the cleaning assembly includes a transmission rod fixed on the arc-shaped outer wall of the inner sliding ring, a pushing ring is fixed on the transmission rod, an upper trapezoidal block is fixed on the bottom end of the pushing ring, a connecting shaft is fixed on the bottom end of the fan body, an upper connecting column is rotatably provided on the arc-shaped outer wall of the top end of the connecting shaft, a rotating seat is sleeved on the outer wall of the upper connecting column, a plurality of lower trapezoidal blocks in contact with the upper trapezoidal block are fixed on the top end of the rotating seat, an inner support ring is fixed on the inner wall of the fixed cylinder, and a telescopic rod is fixed between the inner support ring and the top end of the inner sliding ring;

[0011] A plurality of external fixing blocks are fixedly provided on the inner wall of the rotating seat, and the plurality of external fixing blocks are distributed in a circular array. An inner rotating block is rotatably provided on the arc-shaped outer wall of the upper connecting column, and one side of the inner rotating block is in contact with the external fixing block. A baffle in contact with one side of the inner rotating block is fixedly provided on the upper connecting column, and a torsion spring is fixedly provided between the inner rotating block and the upper connecting column.

[0012] Preferably, the heat transfer liquid pipe is provided with lower air holes matching multiple threaded air pipes, and each lower air hole is connected to the interior of the fixed tube; the heat transfer liquid pipe is provided with upper air holes matching multiple threaded air pipes, and each upper air hole is connected to the interior of the air outlet pipe, and the multiple threaded air pipes are distributed in a circular array.

[0013] Preferably, the filter element body includes a polyester fiber filter layer fixed between a fixing ring and a fixing cylinder, a HEPA filter layer is provided on the polyester fiber filter layer, and an activated carbon layer is provided on the HEPA filter layer.

[0014] Preferably, the outer wall of the threaded air pipe is in contact with the heat transfer liquid, and the inner part of the tin-filling tube is in contact with the heat transfer liquid.

[0015] Preferably, the plurality of lower trapezoidal blocks are distributed in a circular array on the swivel seat, the interior of the swivel seat is hollow, a movable through slot matching the transmission rod is provided on the fixed cylinder, and two magnetic absorption collection boxes are provided inside the fixed cylinder.

[0016] S1: When processing the workpiece on the soldering table, by starting the coil tin column and the soldering module, and at the same time starting the tin breaking pusher, the tin wire can be moved downward inside the tin tube;

[0017] S2: At this time, the soldering module can solder the workpiece on the soldering table, and at the same time start the motor body to drive the fan body to rotate, so that the harmful gas generated by the soldering can enter through the air inlet pipe and be purified by the filter element body and the bag dust removal cone;

[0018] S3: When the purified gas enters the interior of multiple threaded air ducts, with the cooperation of the preheating assembly, the tinned tube portion located inside the thermal liquid tube can absorb the heat inside the gas, and finally preheat the tin wire portion located inside the thermal liquid tube. As the tin wire continues to advance, the tinned tube portion located inside the air inlet pipe can absorb the heat in the harmful gas, and the tin wire can be further preheated. Finally, the purified gas can be discharged from the air outlet pipe.

[0019] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0020] (1) The present invention starts the motor body and drives the fan body to rotate, so that the harmful gas generated by the soldering can enter through the air inlet pipe, and the harmful gas can be automatically purified under the filtration of the filter element body and the bag dust removal cone. The air purification component of the soldering equipment body can remove these harmful substances, reducing the risk of workers inhaling these substances for a long time. In addition, the soldering equipment body can not only effectively absorb and filter the smoke or dust generated during the welding process, but also have the effect of adsorbing and filtering the toxic and harmful gases and dust therein, preventing environmental pollution and protecting the health of workers and the surrounding environment.

[0021] (2) The present invention starts the motor body, which allows the harmful gas generated by the solder to enter through the air intake pipe. When the purified gas enters the interior of the multiple threaded air guide pipes, the tin wire portion located inside the heat transfer liquid pipe can be preheated with the cooperation of the preheating component, and the tin tube portion located inside the air intake pipe can absorb the heat in the harmful gas, which can effectively preheat the tin wire further. The preheated welding wire can reach the temperature required for welding more quickly, thereby shortening the welding time. By preheating the welding wire, the energy input required in the welding process can be reduced, thereby reducing energy consumption. At the same time, it also helps to improve the thermal efficiency of the welding equipment and reduce heat waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the connection structure between the tin-breaking propulsion machine and the welding wire of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure between the air purification component and the preheating component of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between the welding wire loading seat and the support seat of the present invention;

[0026] Figure 5 For the present invention Figure 4 A partial enlarged view of middle A;

[0027] Figure 6 This is a schematic structural diagram of the air purification component of the present invention;

[0028] Figure 7 Schematic diagram of the cross-sectional structure of the air purification component of the present invention;

[0029] Figure 8 For the present invention Figure 7 A partial enlarged view of middle B;

[0030] Figure 9 This is a schematic diagram of the connection structure between the drive shaft and the fan body of the present invention;

[0031] Figure 10 This is a schematic structural diagram of the cleaning component of the present invention;

[0032] Figure 11 It is a schematic diagram of the connection structure between the inner rotating block and the outer fixed block of the present invention.

[0033] Figure: 1. Soldering equipment body; 11. Solder base; 111. Soldering table; 12. Roll-type tinning column; 121. Tin breaking pusher; 13. Soldering module; 14. Tin wire; 141. Tin wire loading seat; 142. Tin tube;

[0034] 2. Air purification assembly; 21. Support base; 22. Inlet pipe; 23. Retaining ring; 24. Retaining cylinder; 241. Magnetic absorption collection box; 25. Inner sliding ring; 251. Bag filter cone; 26. Filter element; 261. Polyester fiber filter layer; 262. HEPA filter layer; 263. Activated carbon layer; 27. Threaded air guide tube; 28. Exhaust pipe; 29. Drive shaft; 291. Fan body; 292. Motor body;

[0035] 3. Preheating assembly; 31. Thermal fluid pipe;

[0036] 4. Cleaning assembly; 41. Transmission rod; 411. Telescopic rod; 42. Pushing ring; 421. Upper trapezoidal block; 43. Connecting shaft; 44. Upper connecting column; 441. Inner rotating block; 45. Rotating seat; 451. Lower trapezoidal block; 452. External fixing block. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0038] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words “including” or “comprising” and the like used in this disclosure mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words “connected” or “connected” and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. “Up”, “down”, “left”, “right” and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0039] like Figures 1 to 11 As shown, the present invention provides an automatic soldering method, comprising a soldering device body 1, a soldering module 13 for mounting a soldering iron tip is slidably provided on the soldering device body 1, an air purification component 2 is provided below the soldering module 13, and a preheating component 3 is provided on one side of the soldering module 13;

[0040] A coiled tin column 12 is installed at the top of the soldering equipment body 1, and a tin breaking pusher 121 is fixedly installed on the coiled tin column 12. A soldering base 11 is fixedly installed at the bottom of the soldering equipment body 1, and two soldering stations 111 are fixedly installed on the soldering base 11. A tin wire loading seat 141 is fixedly installed on one side of the soldering module 13, and a tin tube 142 is fixedly installed on the tin wire loading seat 141. The output end of the tin breaking pusher 121 is provided with a tin wire 14 extending into the inside of the tin tube 142, and each soldering station 111 is provided with a workpiece;

[0041] The preheating assembly 3 includes a heat transfer liquid pipe 31, and heat transfer liquid is provided inside the heat transfer liquid pipe 31;

[0042] The air purification component 2 includes a support base 21 fixedly set on the soldering module 13, and the support base 21 is located on one side of the tin wire loading base 141, an air inlet pipe 22 is fixedly set on the support base 21, and the bottom end of the air inlet pipe 22 is located on one side of the tin tube 142, a fixing ring 23 is fixedly set on the arc-shaped outer wall of the tin tube 142, and the fixing ring 23 is located above the tin wire loading base 141, a fixing cylinder 24 is fixedly set on the fixing ring 23, and the fixing cylinder 24 is sleeved on the outside of the tin tube 142, the bottom end of the fixing cylinder 24 is connected to the top of the air inlet pipe 22, an inner sliding ring 25 is slidingly set on the inner wall of the fixing cylinder 24, a bag dust removal cone 251 is fixedly set between the inner sliding ring 25 and the arc-shaped outer wall of the fixing ring 23, and the inner wall of the fixing cylinder 24 A filter element body 26 is fixedly arranged between the filter element body 26 and the tinning tube 142. A heat transfer liquid pipe 31 is fixed to the top of the filter element body 26. A plurality of threaded air guide tubes 27 are fixedly arranged on the inner wall of the heat transfer liquid pipe 31, and each threaded air guide tube 27 is connected to the inside of the fixed cylinder 24. An air outlet pipe 28 is fixedly arranged on the top of the heat transfer liquid pipe 31, and each threaded air guide tube 27 is connected to the air outlet pipe 28. A drive shaft 29 is rotated on the inner wall of the air outlet pipe 28. A fan body 291 is fixedly arranged at the bottom end of the drive shaft 29. An air outlet is opened at the top of the air outlet pipe 28. A motor body 292 is installed on one side of the soldering module 13, and the motor body 292 is located above the drive shaft 29. The output end of the motor body 292 and the drive shaft 29 are connected by a rotating shaft.

[0043] A cleaning assembly 4 is provided on one side of the fixed cylinder 24. The cleaning assembly 4 includes a transmission rod 41 fixed to the arc-shaped outer wall of the inner slip ring 25. A pushing ring 42 is fixedly provided on the transmission rod 41. An upper trapezoidal block 421 is fixedly provided at the bottom end of the pushing ring 42. A connecting shaft 43 is fixedly provided at the bottom end of the fan body 291. An upper connecting column 44 is rotatably provided on the arc-shaped outer wall of the top end of the connecting shaft 43. A rotating seat 45 is sleeved on the outer wall of the upper connecting column 44. A plurality of lower trapezoidal blocks 451 in contact with the upper trapezoidal block 421 are fixedly provided on the top end of the rotating seat 45. An inner support ring is fixedly provided on the inner wall of the fixed cylinder 24, and a telescopic rod 411 is fixedly provided between the inner support ring and the top end of the inner slip ring 25.

[0044] A plurality of external fixing blocks 452 are fixedly provided on the inner wall of the rotating seat 45, and the plurality of external fixing blocks 452 are distributed in a circular array. An inner rotating block 441 is rotatably provided on the arc-shaped outer wall of the upper connecting column 44, and one side of the inner rotating block 441 is in contact with the external fixing block 452. A baffle is fixedly provided on the upper connecting column 44 and contacts with one side of the inner rotating block 441. A torsion spring is fixedly provided between the inner rotating block 441 and the upper connecting column 44.

[0045] The heat transfer liquid pipe 31 is provided with lower air holes that match multiple threaded air pipes 27, and each lower air hole is connected to the interior of the fixed cylinder 24. The heat transfer liquid pipe 31 is provided with upper air holes that match multiple threaded air pipes 27, and each upper air hole is connected to the interior of the air outlet pipe 28. The multiple threaded air pipes 27 are distributed in a circular array.

[0046] The filter element body 26 includes a polyester fiber filter layer 261 fixed between the fixing ring 23 and the fixing cylinder 24 . A HEPA filter layer 262 is provided on the polyester fiber filter layer 261 . An activated carbon layer 263 is provided on the HEPA filter layer 262 .

[0047] The outer wall of the threaded air pipe 27 is in contact with the heat transfer liquid, and the inner part of the tinning tube 142 located in the heat transfer liquid pipe 31 is in contact with the heat transfer liquid.

[0048] A plurality of lower trapezoidal blocks 451 are distributed in a circular array on the rotating seat 45. The interior of the rotating seat 45 is hollow. A movable through slot matching the transmission rod 41 is opened on the fixed cylinder 24. Two magnetic absorption collection boxes 241 are arranged inside the fixed cylinder 24.

[0049] S1: When processing a workpiece on the soldering station 111, the coiled tin column 12 and the soldering module 13 are activated, and the tin breaking pusher 121 is activated at the same time, so that the tin wire 14 is moved downward inside the tin tube 142;

[0050] S2: At this time, the soldering module 13 can solder the workpiece on the soldering table 111, and at the same time, the motor body 292 is started to drive the fan body 291 to rotate, so that the harmful gas generated by the solder can enter through the air inlet pipe 22 and be purified by the filter element body 26 and the bag dust removal cone 251;

[0051] S3: When the purified gas enters the interior of the multiple threaded air guide tubes 27, with the cooperation of the preheating component 3, the tin-filled tube 142 portion located inside the thermal liquid tube 31 can absorb the heat inside the gas, and finally preheat the tin wire 14 portion located inside the thermal liquid tube 31. As the tin wire 14 continues to advance, the tin-filled tube 142 portion located inside the air inlet pipe 22 can absorb the heat in the harmful gas, and can further preheat the tin wire 14. Finally, the purified gas can be discharged from the air outlet pipe 28.

[0052] The working principle and use process of the present invention are as follows: when the soldering module 13 is soldering the soldering station 111, the motor body 292 can be started, and then the drive shaft 29 fixedly connected to the fan body 291 can be driven to rotate counterclockwise under the connection of the rotating shaft, which can generate negative pressure in the part below the fan body 291 inside the outlet pipe 28, and under the connection of the threaded air guide pipe 27 and the fixed cylinder 24, the harmful gas generated by the soldering can enter the fixed cylinder 24 from the bottom end of the air inlet pipe 22. Figure 6At this time, the harmful gas can move upward and pass through the bag filter cone 251, filtering the metal oxides and smoke in the harmful gas, so that the metal oxides and smoke adhere to the surface of the bag filter cone 251. The harmful gas that has been initially filtered can pass through the filter element body 26 located above the bag filter cone 251 under the action of negative pressure. In this process, the polyester fiber filter layer 261 can filter the medium-sized particles in the harmful gas, and the HEPA filter layer 262 can filter the 0.The activated carbon layer 263 can effectively filter particles larger than 3 microns, and can adsorb harmful gases such as sulfur dioxide and acetaldehyde generated during the soldering process. The filtered gas can enter the interior of the multiple threaded air guide tubes 27 through the multiple lower air holes opened on the heat transfer liquid tube 31. Then, the gas can enter the interior of the air outlet pipe 28 through the multiple upper air holes opened on the heat transfer liquid tube 31, and finally be discharged from the air outlet opened at the end of the air outlet pipe 28, which plays a role in purifying the harmful gases generated during the soldering process and collecting and purifying them. In the process of the purified gas entering the interior of the threaded air guide tube 27, due to the large amount of heat in the gas and the setting of the multiple threaded air guide tubes 27, the gas can be greatly prolonged. The path and time of passing through the heat-conducting liquid pipe 31, at this time, the heat-conducting liquid inside the heat-conducting liquid pipe 31 can absorb and conduct the temperature of the multiple threaded air pipes 27 that absorb the heat of the gas, and then, the tin-filled tube 142 part located inside the heat-conducting liquid pipe 31 can fully absorb the heat in the heat-conducting liquid, thereby preheating the part of the tin wire 14 located inside the heat-conducting liquid pipe 31. As the tin wire 14 continues to advance, the tin-filled tube 142 part located inside the air inlet pipe 22 can absorb the heat in the harmful gas. At this time, the heat is larger than the heat of the preliminary preheating, which can fully preheat the tin wire 14 and play the role of automatically preheating the tin wire 14. When it is necessary to pile up the dust bag on the surface of the cone 251 When the accumulated metal oxides and dust agglomerates are to be cleaned, the driving shaft 29 can be driven to rotate clockwise by starting the motor body 292, and then the upper connecting column 44 can be driven to rotate under the connection of the connecting shaft 43. At the same time, the baffle fixed on the upper connecting column 44 can prevent the inner rotating block 441 from rotating and adhere to the inner rotating block 441. When one side of the inner rotating block 441 contacts the outer fixed block 452 on the rotating seat 45, the rotating seat 45 can be driven to rotate together with the upper connecting column 44, and then the multiple lower trapezoidal blocks 451 fixed on the top of the rotating seat 45 are driven to contact the upper trapezoidal block 421 fixed at the bottom end of the pushing ring 42 in sequence. In this process, one side of the upper trapezoidal block 421 contacts one side of one of the lower trapezoidal blocks 451. 1, the pushing ring 42, which is fixedly connected to the upper trapezoidal block 421, rises. Simultaneously, connected to the transmission rod 41, the inner sliding ring 25 slides upward against the inner wall of the fixed cylinder 24, compressing the telescopic rod 411. When the upper trapezoidal block 421 separates from one of the lower trapezoidal blocks 451, the elastic force of the telescopic rod 411 causes the inner sliding ring 25 to descend, shaking the bag-type dust collection cone 251. Simultaneously, the fan body 291 rotates, increasing the air pressure within the outlet pipe 28, the multiple threaded air guide pipes 27, and the fixed cylinder 24. This removes any lumps adhering to the surface of the bag-type dust collection cone 251 and causes them to fall into the magnetic collection box 241, where they are collected.

[0053] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. An automatic soldering method, comprising a soldering device body (1), characterized in that: A soldering module (13) for mounting a soldering iron tip is slidably provided on the soldering equipment body (1), an air purification component (2) is provided below the soldering module (13), and a preheating component (3) is provided on one side of the soldering module (13); The top of the soldering equipment body (1) is provided with a coiled tin column (12), and a tin-breaking propulsion machine (121) is fixedly provided on the coiled tin column (12). The bottom of the soldering equipment body (1) is provided with a solder base (11), and two soldering stations (111) are fixedly provided on the solder base (11). A tin wire loading seat (141) is fixedly provided on one side of the soldering module (13), and a tin tube (142) is fixedly provided on the tin wire loading seat (141). The output end of the tin-breaking propulsion machine (121) is provided with a tin wire (14) extending into the interior of the tin tube (142), and each of the soldering stations (111) is provided with a workpiece. The preheating component (3) includes a heat transfer liquid pipe (31), and heat transfer liquid is provided inside the heat transfer liquid pipe (31); The air purification component (2) includes a support base (21) fixedly arranged on the soldering module (13), and the support base (21) is located on one side of the tin wire loading base (141); an air inlet pipe (22) is fixedly arranged on the support base (21), and the bottom end portion of the air inlet pipe (22) is located on one side of the tin loading tube (142); a fixing ring (23) is fixedly arranged on the arc-shaped outer wall of the tin loading tube (142), and the fixing ring (23) is located on the tin wire loading base (141), a fixed cylinder (24) is fixedly provided on the fixed ring (23), and the fixed cylinder (24) is sleeved on the outside of the tin-mounted tube (142), the bottom end of the fixed cylinder (24) is connected to the top end of the air inlet pipe (22), an inner sliding ring (25) is slidingly provided on the inner wall of the fixed cylinder (24), and a bag dust removal cone (251) is fixedly provided between the inner sliding ring (25) and the arc-shaped outer wall of the fixed ring (23), the fixed cylinder (24) A filter element body (26) is fixedly provided between the inner wall and the tinning tube (142), the heat transfer liquid pipe (31) is fixed to the top of the filter element body (26), a plurality of threaded air guide pipes (27) are fixedly provided on the inner wall of the heat transfer liquid pipe (31), and each threaded air guide pipe (27) is communicated with the inside of the fixed cylinder (24), an air outlet pipe (28) is fixedly provided on the top of the heat transfer liquid pipe (31), and each threaded air guide pipe (27) is communicated with the air outlet pipe (28), a drive shaft (29) is rotatably provided on the inner wall of the air outlet pipe (28), a fan body (291) is fixedly provided at the bottom end of the drive shaft (29), an air outlet is provided at the top end of the air outlet pipe (28), a motor body (292) is installed on one side of the soldering module (13), and the motor body (292) is located above the drive shaft (29), and the output end of the motor body (292) and the drive shaft (29) are connected via a rotating shaft; A cleaning assembly (4) is provided on one side of the fixed cylinder (24), and the cleaning assembly (4) includes a transmission rod (41) fixed on the arc-shaped outer wall of the inner slip ring (25), a pushing ring (42) is fixed on the transmission rod (41), and an upper trapezoidal block (421) is fixed on the bottom end of the pushing ring (42), a connecting shaft (43) is fixed on the bottom end of the fan body (291), an upper connecting column (44) is rotatably provided on the arc-shaped outer wall of the top end of the connecting shaft (43), a rotating seat (45) is sleeved on the outer wall of the upper connecting column (44), and a plurality of lower trapezoidal blocks (451) in contact with the upper trapezoidal block (421) are fixed on the top end of the rotating seat (45), an inner support ring is fixed on the inner wall of the fixed cylinder (24), and a telescopic rod (411) is fixed between the inner support ring and the top end of the inner slip ring (25); A plurality of external fixing blocks (452) are fixedly provided on the inner wall of the rotating seat (45), and the plurality of external fixing blocks (452) are distributed in a ring array. An inner rotating block (441) is rotatably provided on the arc-shaped outer wall of the upper connecting column (44). A baffle in contact with one side of the inner rotating block (441) is fixedly provided on the upper connecting column (44), and a torsion spring is fixedly provided between the inner rotating block (441) and the upper connecting column (44).

2. An automatic soldering method according to claim 1, characterized in that: The heat-conducting liquid pipe (31) is provided with lower air holes that match the plurality of threaded air pipes (27), and each lower air hole is connected to the interior of the fixed cylinder (24); the heat-conducting liquid pipe (31) is provided with upper air holes that match the plurality of threaded air pipes (27), and each upper air hole is connected to the interior of the air outlet pipe (28); and the plurality of threaded air pipes (27) are distributed in a ring array.

3. The automatic soldering method according to claim 1, characterized in that: The filter element body (26) comprises a polyester fiber filter layer (261) fixed between a fixing ring (23) and a fixing cylinder (24); a HEPA filter layer (262) is provided on the polyester fiber filter layer (261); and an activated carbon layer (263) is provided on the HEPA filter layer (262).

4. The automatic soldering method according to claim 1, characterized in that: The outer wall of the threaded air guide tube (27) is in contact with the heat transfer liquid, and the inner portion of the tin-filled tube (142) is in contact with the heat transfer liquid.

5. The automatic soldering method according to claim 1, characterized in that: The plurality of lower trapezoidal blocks (451) are distributed in a circular array on the rotating seat (45); the interior of the rotating seat (45) is hollow; a movable through slot matching the transmission rod (41) is provided on the fixed cylinder (24); and two magnetic absorption collection boxes (241) are provided inside the fixed cylinder (24).

6. The automatic soldering method according to claim 1, characterized in that: The operation process steps are as follows: S1: When processing a workpiece on the soldering station (111), the coiled tin column (12) and the soldering module (13) are started, and the tin breaking pusher (121) is started at the same time, so that the tin wire (14) is located inside the tin tube (142) and moves downward; S2: At this time, the soldering module (13) solders the workpiece on the soldering table (111), and at the same time starts the motor body (292), driving the fan body (291) to rotate, so that the harmful gas generated by the solder can enter through the air inlet pipe (22), and the harmful gas can be purified under the filtration of the filter element body (26) and the bag dust removal cone (251); S3: When the purified gas enters the interior of the plurality of threaded air guide tubes (27), the tinned tube (142) located inside the heat transfer liquid tube (31) can absorb the heat inside the gas with the cooperation of the preheating assembly (3), and finally preheat the tin wire (14) located inside the heat transfer liquid tube (31). As the tin wire (14) continues to advance, the tinned tube (142) located inside the air inlet tube (22) can absorb the heat in the harmful gas, and further preheat the tin wire (14). Finally, the purified gas can be discharged from the air outlet tube (28).

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