A tin ring automatic processing equipment and process for connector pin hot air welding

Abstract

The application relates to a tin ring automatic processing equipment and process for connector pin hot air welding, which comprises a positioning unit for fixing a tin coil and a processing unit for processing the tin ring, and the processing unit is fixedly installed on the positioning unit. The tin coil is positioned by the positioning unit, and the tin is straightened to ensure that the tin processed by the processing unit is in a straight state. The tin is cut by the processing unit, and the cut tin ring is cleaned and dried to ensure that the surface of the processed tin ring is clean, so that the subsequent hot air welding can be directly carried out. The positioning unit and the processing unit are matched to improve the quality of the processed and cut tin, ensure the uniform thickness of the tin ring, ensure the uniform thickness of the welding position of the connector pin, improve the welding quality of the connector pin, and the equipment can process tin lines with different diameters, thereby improving the utilization rate of the equipment.

Description

Technical Field

[0001] This invention relates to the field of solder ring processing technology, specifically to an automatic processing equipment and process for hot air soldering of connector pins. Background Technology

[0002] Connector pins are key components within the structure of electrical connectors, primarily responsible for achieving circuit connections. The working characteristics of the pins and sockets directly affect the reliability of the electrical connector, making them crucial in its use. These pins cannot be wave soldered and traditionally could only be manually soldered with a soldering iron. This soldering method is inefficient, requires high individual soldering skills, and cannot meet standard soldering quality requirements. With technological advancements, machine hot air soldering is now commonly used, significantly improving both efficiency and quality. This soldering process requires the use of solder rings as the connecting soldering material.

[0003] Solder rings are generally made using solder wire. In the traditional manufacturing process, the solder wire itself has a certain degree of curvature, resulting in uneven thickness of the solder ring. This leads to low hot air soldering quality of connector pins, and the equipment can only process solder wire of a fixed diameter, resulting in low equipment utilization. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an automatic processing equipment and process for hot air soldering of solder rings for connector pins.

[0005] An automatic processing equipment for hot air soldering of connector pins includes a positioning unit for fixing a solder coil and a processing unit for processing the solder ring, wherein the processing unit is fixedly mounted on the positioning unit.

[0006] The positioning unit includes a right-angle frame, a positioning roller rotatably connected to the front of the vertical end of the right-angle frame, a straightening frame rotatably connected to the right side of the positioning roller on the right-angle frame, a sprocket is fixedly installed at the front end of both the straightening frame and the positioning roller, and the sprockets are connected by a toothed chain belt drive. A motor is fixedly installed at the rear of the vertical end of the right-angle frame through a motor base, and the output shaft of the motor is fixedly connected to the sprocket at the front end of the straightening frame through a coupling. A matching cutting frame is fixedly installed at the horizontal end of the right-angle frame.

[0007] The processing unit includes a cutting frame, with a cutting frame fixedly installed on the vertical end of the right-angle frame and on the upper side of the cutting frame, and a processing box fixedly installed on the horizontal end of the right-angle frame and on the right side of the cutting frame.

[0008] Preferred technical solution 1: The positioning roller includes a cylindrical roller. A cylindrical roller is rotatably connected to the front side of the vertical end of the right-angle frame. A set of limiting grooves is evenly opened on the outer end face of the cylindrical roller. The limiting grooves are composed of multiple limiting through holes symmetrically arranged front and back. Limiting sliding blocks are connected in a sliding fit within the limiting through holes. A bidirectional threaded rod is rotatably connected to the middle of the cylindrical roller. The bidirectional threaded rod has threaded grooves with opposite directions of rotation at the front and back. A conical block is symmetrically connected to the bidirectional threaded rod in a threaded connection. The conical block and the limiting sliding block are connected in a sliding fit. Guide rods penetrating the conical block are evenly fixedly installed inside the cylindrical roller.

[0009] Preferred technical solution 2: The straightening frame includes a straightening wheel 1, a straightening wheel 1 is rotatably connected to the right side of the positioning roller on the right-angle frame, a straightening wheel 2 is rotatably connected to the lower side of the straightening wheel on the right-angle frame, a gear 1 is fixedly installed at the front end of the straightening wheel 1, a gear 2 is fixedly installed at the front end of the straightening wheel 2, the gear 1 and gear 2 mesh with each other, a sprocket 1 is fixedly installed at the front end of the gear 1 and the front end of the positioning roller, and a primary straightening frame is rotatably connected to the left side of the straightening wheel 1 on the right-angle frame.

[0010] Preferred technical solution 3: The matching cutting frame includes a support block, a support block is fixedly installed at the horizontal end of the right-angle frame, a limit ring is evenly fixedly installed at the upper end of the support block, a rubber airbag ring is fixedly installed at the inner end of the limit ring, the rubber airbag rings are connected to each other, an air pump is fixedly installed at the front end of the support block, a connecting pipe is fixedly installed at the front end of the leftmost rubber airbag ring, the connecting pipe is fixedly connected to the air pump, and heat insulation protection blocks are evenly fixedly installed on the inner wall of the rubber airbag ring.

[0011] Preferred technical solution four: The processing box includes a collection box, a collection box is fixedly installed at the horizontal end of the right-angle frame and on the right side of the matching cutting frame, an ultrasonic cleaner is fixedly installed inside the collection box, an electric push rod is fixedly installed inside the collection box, a mesh grid box is fixedly installed at the end of the electric push rod, and a drying lamp is fixedly installed at the top of the collection box.

[0012] Preferred technical solution five: The straightening wheel includes a cylindrical wheel, an annular groove is provided in the middle of the cylindrical wheel, and arc-shaped extrusion blocks are uniformly connected to the inner wall of the annular groove in a sliding fit manner. A threaded column is rotatably connected to the middle of the cylindrical wheel, and a conical plate is connected to the threaded column in a threaded connection manner. The conical plate and the arc-shaped extrusion blocks are connected in a sliding fit manner. A limiting rod that penetrates the conical plate is fixedly installed inside the cylindrical wheel.

[0013] Preferred technical solution six: The initial straightening frame includes a bidirectional threaded rod two. The bidirectional threaded rod two is rotatably connected to the right-angle frame and located to the left of the straightening wheel one. The bidirectional threaded rod two has threaded grooves with opposite directions of rotation on its upper and lower sides. A moving block is connected to the bidirectional threaded rod two by a threaded connection. The front end of the moving block is uniformly and rollingly connected to the initial straightening column. Round rods that pass through the moving block are uniformly and fixedly installed on the right-angle frame.

[0014] Preferred technical solution seven: The cutting frame includes a control cylinder, a bracket is fixedly installed at the end of the control cylinder, an irregular frame is fixedly installed at the lower end of the bracket, a second motor is fixedly installed at the right end of the irregular frame via a motor base, a rotating shaft is fixedly installed on the output shaft of the second motor via a coupling, cutting blades are evenly fixedly installed on the rotating shaft, a punching cylinder is fixedly installed at the vertical end of the irregular frame near the second motor, a hollow punching knife is fixedly installed at the end of the punching cylinder, a cylindrical spring is fixedly installed inside the hollow punching knife, and an extrusion plate is fixedly installed at the end of the cylindrical spring.

[0015] Preferred technical solution eight: The above-mentioned automatic processing equipment for hot air soldering of connector pins also uses an automatic processing technology for hot air soldering of connector pins, including the following steps:

[0016] S1. Positioning and fixing: First, put the solder wire coil on the positioning roller and fix it through the solder wire coil of the positioning unit;

[0017] S2. Straightening treatment: Pull one end of the tin wire to the right and straighten it;

[0018] S3. Cutting process: The solder wire is cut and cleaned by the processing unit;

[0019] S4. Remove the solder ring: Remove the solder ring, align it with the connector pin, and perform hot air soldering.

[0020] The present invention has the following beneficial effects: 1. The present invention provides an automatic processing equipment for solder rings for hot air soldering of connector pins. The positioning unit positions the solder wire coil and straightens the solder wire to ensure that the solder wire processed by the processing unit is in a straight state. The processing unit cuts the solder wire and cleans and dries the cut solder ring to ensure that the surface of the finished solder ring is clean, which facilitates subsequent hot air soldering. The positioning unit and the processing unit cooperate to improve the quality of the cut solder wire and ensure that the thickness of the solder ring is uniform, thereby ensuring that the thickness of the solder at the connector pin is uniform, thus improving the soldering quality of the connector pin. Moreover, the equipment can process solder wires of different diameters, improving the utilization rate of the equipment.

[0021] 2. The positioning unit of this invention, by rotating the bidirectional threaded rod, drives the conical blocks to move towards each other, thereby causing the limiting sliding block to extend out of the limiting through hole. Finally, the limiting sliding block clamps and fixes the solder wire coil. By rotating the threaded column, the conical plate is moved, thereby causing the arc-shaped extrusion plate to extend out of the annular groove to extrude and position the solder wire, thereby straightening it.

[0022] 3. The positioning unit of this invention inflates the rubber airbag ring with an air pump, and the heat insulation and protection block is in close contact with the solder wire, thereby fixing the solder wire and preventing the heat on the solder wire from being transferred to the rubber airbag ring during the cutting process.

[0023] 4. The processing unit of this invention uses a cylindrical spring to squeeze out the metal scrap accumulated in the hollow punching knife, preventing the metal scrap from interfering with the movement of the hollow punching knife. Attached Figure Description

[0024] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0025] Figure 2 This is a rear-view stereoscopic structural diagram of the present invention.

[0026] Figure 3 This is a schematic diagram of the front view structure of the present invention.

[0027] Figure 4 For the present invention Figure 3 A magnified view of a portion at point N.

[0028] Figure 5 This is a schematic diagram of the front view structure of the present invention.

[0029] Figure 6 For the present invention Figure 5 A sectional view along the AA direction.

[0030] Figure 7 For the present invention Figure 5 A sectional view along the BB direction.

[0031] Figure 8 This is a top cross-sectional view of the limiting sliding block and the conical block of the present invention.

[0032] Figure 9 This is a schematic diagram of the workflow of the present invention.

[0033] In the diagram: 1. Positioning unit; 11. Right-angle frame; 12. Positioning roller; 121. Cylindrical roller; 122. Limiting through hole; 123. Limiting sliding block; 124. Bidirectional threaded rod one; 125. Conical block; 126. Guide rod; 13. Straightening frame; 131. Straightening wheel one; 1311. Cylindrical wheel; 1312. Annular groove; 1313. Arc-shaped extrusion block; 1314. Threaded column; 1315. Conical plate; 1316. Limiting rod; 132. Straightening wheel two; 133. Gear one; 134. Gear two; 135. Initial straightening frame; 1351. Bidirectional threaded rod two; 1352. Moving block; 1353. Initial straightening column; 1354. Round rod; 14. Chain 15. Gear chain; 16. Motor 1; 17. Cutting frame; 171. Support block; 172. Limiting ring; 173. Rubber airbag ring; 174. Air pump; 175. Connecting pipe; 176. Heat insulation protection block; 2. Processing unit; 21. Cutting frame; 211. Control cylinder; 212. Bracket; 213. Irregular frame; 214. Motor 2; 215. Rotating shaft; 216. Cutting blade; 217. Punching cylinder; 218. Punching hollow knife; 219. Cylindrical spring; 220. Extrusion sheet; 22. Processing box; 221. Collection box; 222. Ultrasonic cleaner; 223. Electric push rod; Mesh grid box; 225. Drying lamp. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] See Figure 1 An automatic processing equipment for hot air soldering of connector pins includes a positioning unit 1 for fixing a solder coil and a processing unit 2 for processing the solder ring, wherein the processing unit 2 is fixedly installed on the positioning unit 1.

[0036] See Figure 1 and Figure 2The positioning unit 1 includes a right-angle frame 11. A positioning roller 12 is rotatably connected to the front of the vertical end of the right-angle frame 11. A straightening frame 13 is rotatably connected to the right-angle frame 11 and located to the right of the positioning roller 12. A sprocket 14 is fixedly installed at the front end of both the straightening frame 13 and the positioning roller 12. The sprocket 14 is connected to the straightening frame 13 by a toothed chain belt 15. A motor 16 is fixedly installed at the rear of the vertical end of the right-angle frame 11 by a motor mount. The output shaft of the motor 16 is connected to the chain belt at the front end of the straightening frame 13 by a coupling. Wheel 14 is fixedly connected, and a cutting frame 17 is fixedly installed at the horizontal end of the right-angle frame 11. First, the solder wire coil is put on the positioning roller 12 and fixed by the positioning roller 12. At this time, one end of the solder wire is pulled to the right to the straightening frame 13. The motor 16 drives the sprocket 14 to rotate, thereby driving the straightening frame 13 and the positioning roller 12 to rotate simultaneously. The straightening frame 13 straightens the solder wire, and the positioning roller 12 drives the solder wire coil to rotate, so that the solder wire moves smoothly to the right.

[0037] See Figure 1 The processing unit 2 includes a cutting frame 21. The cutting frame 21 is fixedly installed on the vertical end of the right-angle frame 11 and on the upper side of the matching cutting frame 17. The processing box 22 is fixedly installed on the horizontal end of the right-angle frame 11 and on the right side of the matching cutting frame 17. The cutting frame 21 cooperates with the matching cutting frame 17 to cut the solder wire. The processing box 22 cleans the cut solder ring and finally collects it.

[0038] See Figure 2 , Figure 3 , Figure 7 and Figure 8 The positioning roller 12 includes a cylindrical roller 121. The cylindrical roller 121 is rotatably connected to the front of the vertical end of the right-angle bracket 11. A set of limiting grooves is evenly formed on the outer end face of the cylindrical roller 121. The limiting groove set consists of two symmetrically arranged limiting through holes 122. Limiting sliding blocks 123 are connected to the limiting through holes 122 in a sliding fit. A bidirectional threaded rod 124 is rotatably connected to the middle of the cylindrical roller 121. The bidirectional threaded rod 124 has threaded grooves with opposite directions of rotation at its front and rear. The bidirectional threaded rod 124 is symmetrically arranged with... A conical block 125 is connected by a threaded connection. The conical block 125 is connected to the limiting sliding block 123 by a sliding fit. Guide rods 126 that pass through the conical block 125 are uniformly fixedly installed inside the cylindrical roller 121. When the solder wire coil is sleeved on the cylindrical roller 121, the conical block 125 is moved towards each other by rotating the bidirectional threaded rod 124, thereby causing the limiting sliding block 123 to extend out of the limiting through hole 122. Finally, the symmetrical limiting sliding blocks 123 clamp and fix the two ends of the solder wire coil.

[0039] See Figure 2 and Figure 3The straightening frame 13 includes a straightening wheel 131. The straightening wheel 131 is rotatably connected to the right side of the positioning roller 12 on the right-angle frame 11. The straightening wheel 132 is rotatably connected to the right-angle frame 11 below the straightening wheel 131. A gear 133 is fixedly installed at the front end of the straightening wheel 131. A gear 134 is fixedly installed at the front end of the straightening wheel 132. The gear 133 and the gear 134 mesh with each other. A sprocket 14 is fixedly installed at the front end of the gear 133 and the front end of the positioning roller 12. A primary straightening frame 135 is rotatably connected to the left side of the straightening wheel 131 on the right-angle frame 11. Through the cooperation of the gear 133 and the gear 134, the straightening wheel 131 and the straightening wheel 132 rotate in opposite directions to straighten the solder wire while pulling the solder wire to the right. The primary straightening frame 135 performs initial straightening treatment on the solder wire.

[0040] See Figure 1 and Figure 3 The cutting frame 17 includes a support block 171. The support block 171 is fixedly installed at the horizontal end of the right-angle frame 11. Limiting rings 172 are evenly fixedly installed on the upper end of the support block 171. Rubber airbag rings 173 are fixedly installed on the inner end of the limiting rings 172. The rubber airbag rings 173 are connected to each other. An air pump 174 is fixedly installed at the front end of the support block 171. A connecting pipe 175 is fixedly installed at the front end of the leftmost rubber airbag ring 173. The connecting pipe 175 is fixedly connected to the air pump 174. Heat insulation protection blocks 176 are evenly fixedly installed on the inner wall of the rubber airbag ring 173. When the right side of the solder wire extends into the limiting ring 172, air is pumped into the rubber airbag ring 173 by the air pump 174. The heat insulation protection blocks 176 are in close contact with the solder wire, thereby fixing the solder wire and preventing the heat on the solder wire from being transferred to the rubber airbag ring 173 during the cutting process.

[0041] See Figure 2 and Figure 3 The processing box 22 includes a collection box 221. The collection box 221 is fixedly installed at the horizontal end of the right-angle frame 11 and on the right side of the matching cutting frame 17. An ultrasonic cleaner 222 is fixedly installed inside the collection box 221. An electric push rod 223 is fixedly installed inside the collection box 221. A mesh grid box 224 is fixedly installed at the end of the electric push rod 223. A drying lamp 225 is fixedly installed at the upper end of the collection box 221. The cut solder rings are cleaned by the ultrasonic cleaner 222. After cleaning, the mesh grid box 224 is moved upward by the electric push rod 223. At this time, the solder rings in the mesh grid box 224 are dried by the drying lamp 225. After the drying is completed, the solder rings are removed.

[0042] See Figure 4 and Figure 6The straightening wheel 131 includes a cylindrical wheel 1311, with an annular groove 1312 in the middle. Arc-shaped extrusion blocks 1313 are uniformly connected to the inner wall of the annular groove 1312 in a sliding fit. A threaded column 1314 is rotatably connected to the middle of the cylindrical wheel 1311. A conical plate 1315 is threadedly connected to the threaded column 1314. The conical plate 1315 and the arc-shaped extrusion blocks 1313 are connected in a sliding fit. A limiting rod 1316 is fixedly installed inside the cylindrical wheel 1311, penetrating the conical plate 1315. By rotating the threaded column 1314, the conical plate 1315 is moved, thereby causing the arc-shaped extrusion plate to extend out of the annular groove 1312, extruding and positioning the tin wire, thus straightening it.

[0043] See Figure 3 The initial straightening frame 135 includes a second bidirectional threaded rod 1351. The second bidirectional threaded rod 1351 is rotatably connected to the right-angle frame 11 and located to the left of the first straightening wheel 131. The second bidirectional threaded rod 1351 has threaded grooves with opposite directions of rotation on its upper and lower sides. A moving block 1352 is connected to the second bidirectional threaded rod 1351 by a threaded connection. The front end of the moving block 1352 is uniformly connected to an initial straightening column 1353. A round rod 1354 is uniformly fixedly installed on the right-angle frame 11, penetrating the moving block 1352. By rotating the second bidirectional threaded rod 1351, the moving block 1352 is driven to move towards each other, thereby performing initial straightening of the solder wire through the initial straightening column 1353, and limiting and guiding the moving block 1352 through the round rod 1354.

[0044] See Figure 4 and Figure 5 The cutting frame 21 includes a control cylinder 211, a bracket 212 fixedly mounted at the end of the control cylinder 211, an irregular frame 213 fixedly mounted at the lower end of the bracket 212, a second motor 214 fixedly mounted at the right end of the irregular frame 213 via a motor mount, a rotating shaft 215 fixedly mounted on the output shaft of the second motor 214 via a coupling, cutting blades 216 evenly fixedly mounted on the rotating shaft 215, and a punching cylinder 217 fixedly mounted at the vertical end of the irregular frame 213 near the second motor 214, with a punching hollow knife 218 fixedly mounted at the end of the punching cylinder 217. A cylindrical spring 219 is fixedly installed inside the punching hollow knife 218, and an extrusion plate 220 is fixedly installed at the end of the cylindrical spring 219. The rotating shaft 215 is driven to rotate by the motor 214, which in turn drives the cutting blade 216 to rotate. The control cylinder 211 drives the cutting blade 216 to move downward to cut the tin wire. After the cutting is completed, the cutting blade 216 returns to the initial position. At this time, the punching cylinder 217 drives the punching hollow knife 218 to punch to the left. After the punching is completed, the cylindrical spring 219 squeezes out the metal scrap accumulated in the punching hollow knife 218.

[0045] See Figure 9The aforementioned automatic processing equipment for hot air soldering of connector pins also uses an automatic processing technology for hot air soldering of connector pins, which includes the following steps:

[0046] S1. Positioning and fixing: First, put the solder wire coil on the positioning roller 12 and fix it through the solder wire coil of the positioning unit 1;

[0047] S2. Straightening treatment: Pull one end of the tin wire to the right and straighten it;

[0048] S3. Cutting process: The solder wire is cut and cleaned by processing unit 2;

[0049] S4. Remove the solder ring: Remove the solder ring, align it with the connector pin, and perform hot air soldering.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic processing equipment for hot air soldering of connector pins, comprising a positioning unit (1) for fixing solder coils and a processing unit (2) for processing solder rings, characterized in that: A processing unit (2) is fixedly installed on the positioning unit (1); wherein: The positioning unit (1) includes a right-angle frame (11), a positioning roller (12) is rotatably connected to the front of the vertical end of the right-angle frame (11), a straightening frame (13) is rotatably connected to the right side of the positioning roller (12) on the right-angle frame (11), a sprocket (14) is fixedly installed at the rear end of both the straightening frame (13) and the positioning roller (12), the sprockets (14) are connected by a toothed chain belt (15), a motor (16) is fixedly installed at the rear of the vertical end of the right-angle frame (11) by a motor seat, the output shaft of the motor (16) is fixedly connected to the sprocket (14) at the rear end of the straightening frame (13) by a coupling, and a matching cutting frame (17) is fixedly installed at the horizontal end of the right-angle frame (11). The processing unit (2) includes a cutting frame (21), a cutting frame (21) is fixedly installed on the vertical end of the right angle frame (11) and on the upper side of the matching cutting frame (17), and a processing box (22) is fixedly installed on the horizontal end of the right angle frame (11) and on the right side of the matching cutting frame (17). The cutting frame (21) includes a control cylinder (211), a bracket (212) is fixedly installed at the end of the control cylinder (211), an irregular frame (213) is fixedly installed at the lower end of the bracket (212), a second motor (214) is fixedly installed at the right end of the irregular frame (213) through a motor base, a rotating shaft (215) is fixedly installed on the output shaft of the second motor (214) through a coupling, cutting blades (216) are evenly fixedly installed on the rotating shaft (215), a punching cylinder (217) is fixedly installed at the vertical end of the irregular frame (213) near the second motor (214), a punching hollow knife (218) is fixedly installed at the end of the punching cylinder (217), a cylindrical spring (219) is fixedly installed inside the punching hollow knife (218), and an extrusion plate (220) is fixedly installed at the end of the cylindrical spring (219).

2. The automatic processing equipment for hot air soldering of connector pins according to claim 1, characterized in that: The positioning roller (12) includes a cylindrical roller (121). The cylindrical roller (121) is rotatably connected to the front side of the vertical end of the right-angle frame (11). A set of limiting grooves is evenly opened on the outer end face of the cylindrical roller (121). The limiting grooves are composed of multiple limiting through holes (122) symmetrically arranged front and back. A limiting sliding block (123) is connected in the limiting through hole (122) in a sliding fit manner. A bidirectional threaded rod (124) is rotatably connected to the middle of the cylindrical roller (121). The bidirectional threaded rod (124) has threaded grooves with opposite rotation directions opened at the front and back. A conical block (125) is symmetrically connected to the bidirectional threaded rod (124) in a threaded connection manner. The conical block (125) and the limiting sliding block (123) are connected in a sliding fit manner. A guide rod (126) that passes through the conical block (125) is evenly fixedly installed inside the cylindrical roller (121).

3. The automatic processing equipment for hot air soldering of connector pins according to claim 1, characterized in that: The straightening frame (13) includes a straightening wheel one (131), a straightening wheel one (131) is rotatably connected on the right-angle frame (11) and located to the right of the positioning roller (12), a straightening wheel two (132) is rotatably connected on the right-angle frame (11) and located below the straightening wheel one (131), a gear one (133) is fixedly installed at the rear end of the straightening wheel one (131), a gear two (134) is fixedly installed at the rear end of the straightening wheel two (132), the gear one (133) and the gear two (134) mesh with each other, a sprocket one (14) is fixedly installed at the front end of the gear one (133) and the rear end of the positioning roller (12), and a primary straightening frame (135) is rotatably connected on the right-angle frame (11) and located to the left of the straightening wheel one (131).

4. The automatic processing equipment for hot air soldering of connector pins according to claim 1, characterized in that: The cutting frame (17) includes a support block (171). The support block (171) is fixedly installed at the horizontal end of the right-angle frame (11). Limiting rings (172) are evenly fixedly installed on the upper end of the support block (171). Rubber airbag rings (173) are fixedly installed on the inner end of the limiting rings (172). The rubber airbag rings (173) are connected to each other. An air pump (174) is fixedly installed at the front end of the support block (171). A connecting pipe (175) is fixedly installed at the front end of the leftmost rubber airbag ring (173). The connecting pipe (175) is fixedly connected to the air pump (174). Heat insulation protection blocks (176) are evenly fixedly installed on the inner wall of the rubber airbag ring (173).

5. The automatic processing equipment for hot air soldering of connector pins according to claim 1, characterized in that: The processing box (22) includes a collection box (221). The collection box (221) is fixedly installed at the horizontal end of the right-angle frame (11) and on the right side of the matching cutting frame (17). An ultrasonic cleaner (222) is fixedly installed inside the collection box (221). An electric push rod (223) is fixedly installed inside the collection box (221). A mesh grid box (224) is fixedly installed at the end of the electric push rod (223). A drying lamp (225) is fixedly installed at the upper end of the collection box (221).

6. The automatic processing equipment for hot air soldering of connector pins according to claim 3, characterized in that: The straightening wheel (131) includes a cylindrical wheel (1311), an annular groove (1312) is provided in the middle of the cylindrical wheel (1311), and an arc-shaped extrusion block (1313) is uniformly connected to the inner wall of the annular groove (1312) in a sliding fit. A threaded column (1314) is rotatably connected to the middle of the cylindrical wheel (1311), and a conical plate (1315) is connected to the threaded column (1314) in a threaded connection. The conical plate (1315) and the arc-shaped extrusion block (1313) are connected in a sliding fit. A limiting rod (1316) that penetrates the conical plate (1315) is fixedly installed inside the cylindrical wheel (1311).

7. The automatic processing equipment for hot air soldering of connector pins according to claim 3, characterized in that: The initial straightening frame (135) includes a bidirectional threaded rod (1351). The bidirectional threaded rod (1351) is rotatably connected to the right-angle frame (11) and located to the left of the straightening wheel (131). The bidirectional threaded rod (1351) has threaded grooves with opposite directions of rotation on its upper and lower sides. A moving block (1352) is connected to the bidirectional threaded rod (1351) by a threaded connection. The front end of the moving block (1352) is uniformly connected to the initial straightening column (1353). A round rod (1354) that passes through the moving block (1352) is uniformly fixedly installed on the right-angle frame (11).

8. The automatic processing equipment for hot air soldering of connector pins according to claim 1, characterized in that: The aforementioned automatic processing equipment for hot air soldering of connector pins also uses an automatic processing technology for hot air soldering of connector pins, which includes the following steps: S1. Positioning and fixing: First, put the tin wire coil on the positioning roller (12) and fix it by the tin wire coil of the positioning unit (1); S2. Straightening treatment: Pull one end of the tin wire to the right and straighten it; S3. Cutting process: The solder wire is cut and cleaned by the processing unit (2); S4. Remove the solder ring: Remove the solder ring, align it with the connector pin, and perform hot air soldering.

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