Automatic tin soldering machine with tin wire feeding structure

Abstract

The invention provides an automatic tin soldering machine with a tin wire feeding structure, and belongs to the technical field of tin wire feeding of tin soldering machines, the automatic tin soldering machine comprises an operation table, a tin wire body, a welding gun, a tin wire reel and a tin feeding head, and further comprises a wire feeding wiping assembly, a detection assembly and an induction cleaning assembly; the sponge block on the wire feeding wheel cleans rosin in time, the rotating directions of the wire feeding wheel and the fan-shaped block are opposite, the cleaning efficiency is improved, rosin reattachment and splashing are prevented, smooth wire feeding and cleaning of a working area are guaranteed, and the welding quality is improved. The detection assembly monitors in real time through a rotating speed sensor, an alarm can be triggered in time when wire blockage occurs, operators are reminded of handling, and welding work is prevented from being affected; the induction cleaning assembly automatically triggers cleaning through a pressure sensor, and the automation degree is improved; multi-angle cleaning is achieved by controlling the gas flow direction, and dead angles are reduced; and in cooperation with vibration of the fixing balls and fine teeth of the wire feeding wheel, the cleaning effect is enhanced, cleanliness of the wire feeding wheel and the sponge block is guaranteed, and smooth welding is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of tin wire feeding of a soldering machine, and in particular to an automatic soldering machine provided with a solder wire feeding structure. Background Art

[0002] When the soldering machine is in use, wave soldering or spot welding can be used to fix semiconductor material components on corresponding plates. When spot welding is used, wire feeding can be used to perform stable welding, and the corresponding wire feeding structure can be used to improve the convenience of wire feeding.

[0003] However, there are still some problems in the existing soldering machines when conveying welding wire. First of all, in the case of long-term continuous wire feeding operation, the wire feeding wheel is very easy to be stained with rosin. This is because during the welding process, the rosin component in the solder wire will gradually melt with the action of welding heat, and part of the melted rosin will inevitably adhere to the surface of the wire feeding wheel during the contact between the wire feeding wheel and the solder wire. As time goes by, the rosin on the surface of the wire feeding wheel will accumulate more and more, which will seriously affect the normal operation of the wire feeding wheel, and then make the feeding speed of the solder wire unstable. What is more serious is that when the rosin accumulates to a certain extent, it will cause the wire feeding wheel to be blocked. Once this happens, the machine must be stopped to clean the wire feeding wheel. In addition, although some existing soldering machines are equipped with an air blowing cleaning function for the wire feeding wheel, this cleaning method is not suitable for the welding process. There are obvious defects in this method. On the one hand, this simple air blowing cleaning method lacks pertinence and cannot perform targeted cleaning according to the actual distribution of rosin on the wire feeding wheel. This results in some relatively clean parts being blown unnecessarily during the cleaning process, while those parts with serious rosin accumulation may not receive sufficient cleaning force, and the cleaning effect is greatly reduced. On the other hand, this untargeted air blowing cleaning method also causes a large amount of gas waste. Since a large area of ​​air is blown regardless of the actual situation on the wire feeding wheel, a lot of gas does not really play a role in cleaning the rosin, but is wasted. This not only increases production costs, but also in the environment of advocating energy conservation and emission reduction, this phenomenon of resource waste does not meet the requirements of sustainable development.

[0004] How to invent an automatic soldering machine with a solder wire feeding structure to solve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides an automatic soldering machine provided with a solder wire feeding structure, aiming to solve the problems mentioned in the above background.

[0006] The present invention is achieved in that:

[0007] The present invention provides an automatic soldering machine with a solder wire feeding structure, comprising an operating table, a tin wire body, a welding gun, a tin wire reel and a tin feeding head, wherein the tin wire body is wound on the tin wire reel, a support frame is fixedly installed on the operating table, a moving assembly is arranged on the support frame, the moving assembly comprises a transverse moving mechanism, a longitudinal moving mechanism and a vertical cylinder, the transverse moving mechanism is fixed on the top of the support frame, the longitudinal moving mechanism is slidably arranged on a sliding member of the transverse moving mechanism, and a mounting member is fixedly installed on the sliding member of the longitudinal moving mechanism A plate, a motor mounting plate and a mounting platform are respectively mounted on both sides of the mounting plate, a vertical cylinder is fixedly mounted on the side wall of the mounting platform, a fixing bracket is fixedly connected to the output end of the vertical cylinder, the welding gun is fixedly connected to the fixing bracket, an adjusting bracket for adjusting the angle of the tin-feeding head is fixedly connected to the lower side of the fixing bracket, a positioning sleeve is mounted on the top plate of the motor mounting plate, a wiring sleeve is mounted on the bottom plate of the motor mounting plate, a feeding pipe is connected between the lower end of the wiring sleeve and the upper end of the tin-feeding head, and a dust cover is fixedly connected to the upper end of the wiring sleeve, and also includes:

[0008] Wire feeding wiping assembly: The wire feeding wiping assembly is arranged on the motor mounting plate, and the wire feeding wiping assembly can clean the rosin stained on the wheel set while feeding the wire;

[0009] Detection component: The detection component is installed on the dustproof shell, and the detection component can detect whether the equipment has wire blockage;

[0010] Induction cleaning component: The induction cleaning component is arranged inside the wire feeding wiping component, and the induction cleaning component can automatically clean the rosin adhered to the wire feeding wiping component when the wire feeding wiping component is saturated.

[0011] Preferably, the wire feeding wiping assembly comprises a wire feeding motor, a fixed side plate and a movable side plate, the wire feeding motor is fixed to the rear side wall of the motor mounting plate, the front side wall of the motor mounting plate is fixedly connected with a connecting fixing plate and a limiting frame, the fixed side plate is fixed to the connecting fixing plate, an adjusting rod is rotatably clamped on the limiting frame, the end of the adjusting rod away from the fixed side plate is provided with a threaded portion, a screw sleeve is fixedly installed on the top of the movable side plate, the screw sleeve is threadedly connected to the threaded portion, and the side wall of the movable side plate abuts against the side wall of the connecting fixing plate. The fixed side plate and the movable side plate are elastically connected by a spring, the output end of the wire feeding motor is fixedly connected with a driving shaft, the end of the driving shaft passes through the motor mounting plate and the side wall of the fixed side plate and is rotatably connected thereto, a driven shaft is rotatably clamped on the connecting fixed plate, a driving gear is fixedly connected to the driving shaft, a driven gear is fixedly connected to the driven shaft, the driving gear is meshed with the driven gear, a connecting shaft is rotatably clamped on the fixed side plate and the movable side plate, and a wire feeding wheel and a transmission gear are fixedly connected to the connecting shaft.

[0012] Preferably, the transmission gear is located above the driving gear and the driven shaft, and the driving gear and the driven shaft are respectively meshed and connected with the corresponding transmission gears above themselves, and a limiting sliding groove matching the driven shaft is provided on the movable side plate.

[0013] Preferably, fan-shaped blocks are fixedly mounted on the driving shaft and the driven shaft, and the fan-shaped blocks on different shafts are arranged in opposite directions. A protrusion is arranged in the middle of the fan-shaped block, and the wire feeding wheel is arranged in a fine-tooth shape. A slot matching the protrusion is arranged in the middle of the wire feeding wheel, and a sponge block is pasted on the surface of the fan-shaped block on the same side of the protrusion and the protrusion.

[0014] Preferably, the end of the tin wire body passes through the positioning sleeve, between the two wire feeding wheels, the dust cover, the wiring sleeve, the feeding tube, and the tin feeding head from top to bottom.

[0015] Preferably, the detection component includes a speed sensor and a limit slide bar and spring three arranged in opposite directions. The limit slide bar is slidably connected to the dustproof shell, and the outer end of the limit slide bar is elastically connected to the outer side wall of the dustproof shell by spring three. The end of the limit slide bar located inside the dustproof shell is fixedly connected to the limit seat, and the internal rotation of the limit seat is connected to a pressure wheel shaft, and a pressure wheel is fixedly connected to the pressure wheel shaft, and a speed sensor is fixedly connected to the side walls of one of the limit seats.

[0016] Preferably, one end of the rotation speed sensor is clamped on the outer side of the pressure wheel shaft, and the rotation speed sensor is electrically connected to the external alarm.

[0017] Preferably, the induction cleaning assembly includes an air storage box, an air guiding cavity, a mounting tube and a pressure sensor, the interior of the air storage box is hollow, a mounting block is fixedly connected to one side of the air storage box, the mounting block is fixedly connected to the inner wall of the fixed side plate, the lower end of the air storage box is through-connected with an air injection port, and the side wall of the air storage box facing the fan-shaped block is provided with an air outlet, the air guiding cavity and the mounting tube are both arranged inside the fan-shaped block, and the side wall of the fan-shaped block opposite to the air outlet is provided with an air inlet, the bottom of the mounting tube is fixedly connected with a spring 2, the end of the spring 2 is fixedly connected with a pressure sensor, the upper side of the pressure sensor is fixedly connected with a fixing bead, the interior of the fixing bead is fixedly connected with a sliding seat, and a plurality of through holes are provided on one side of the fan-shaped block facing the protrusion, and the ends of the through holes pass through the fan-shaped block and the side walls of the air guiding cavity.

[0018] Preferably, a slot is provided inside the gas storage box for the connecting shaft to move, the air inlet and the air outlet are matched, the sliding seat is sealingly and slidingly connected to the inner cavity of the mounting tube, and the rear side wall of the sector block is flush with the front side wall of the gas storage box.

[0019] Preferably, the lower end of the gas injection port is through-connected to the external gas pump, the pressure sensor is electrically connected to the external gas pump, the external gas pump is set to a timed start mode, the top of the fixed bead in the initial state is located above the outer end surface of the fan-shaped block, the mounting tube is equidistantly arranged along the edge of the raised portion and is symmetrically distributed on the left and right, and the fixed bead is made of rubber material.

[0020] The beneficial effects of the present invention are:

[0021] 1. While feeding the wire, the sponge block on the wire feeding wheel can clean the rosin in time to prevent accumulation from affecting the rotation of the wire feeding wheel and the wire feeding effect, reduce welding defects caused by wire feeding problems, and improve welding quality; due to the meshing relationship between the gears, the wire feeding wheel and the fan-shaped block rotate in opposite directions, which improves the cleaning efficiency while preventing the rosin from re-attaching and reducing problems such as poor wire feeding. In addition, the rosin debris can be taken away in a relatively controllable manner to avoid splashing and keep the working area clean; the detection component monitors the speed of the pressure wheel shaft in real time through the speed sensor to obtain the pressure wheel speed information. When wire blockage occurs, the speed change triggers the external alarm to remind the operator to deal with it to avoid affecting the welding work.

[0022] 2. The induction cleaning component detects the pressure change of the fixed bead through the pressure sensor, automatically triggers the cleaning, and improves the degree of automation and efficiency; the fan-shaped block and the wire feeding wheel move relative to each other, and the fixed bead and the fine teeth of the wire feeding wheel collide to shake off part of the rosin, reducing the burden of subsequent cleaning and improving the cleaning efficiency; the gas flow direction can be controlled according to whether the air outlet is blocked, so as to realize the centralized cleaning of the sponge block and the multi-angle cleaning of the wire feeding wheel and related components, and reduce the cleaning dead angle; the multi-angle gas blowing cooperates with the vibration of the fixed bead and the fine teeth of the wire feeding wheel to enhance the cleaning effect, ensure the cleanliness of the wire feeding wheel and the sponge block, and facilitate wire feeding and welding.

[0023] 3. The moving assembly enables the welding gun to move flexibly in three directions. The adjusting bracket can adjust the angle of the tin feeding head, which can adapt to various complex welding tasks and accurately deliver solder to welding points at different positions and angles, improving welding flexibility and accuracy; the positioning sleeve accurately locates the starting position of the tin wire body, and the multi-stage gear transmission ensures the stable speed and rotation direction of the wire feeding wheel, so that the tin wire can be transported smoothly; according to the different diameters of tin wire, the spacing between the wire feeding wheels can be adjusted by adjusting the rod and the spring, so that the tin wire can be closely fitted and the wire can be fed stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of an automatic soldering machine provided by the present invention and provided with a solder wire feeding structure;

[0026] Figure 2 It is a partial structural schematic diagram of an automatic soldering machine provided by the present invention and provided with a solder wire feeding structure;

[0027] Figure 3 It is a schematic diagram of the structure of an automatic soldering machine adjustment bracket provided with a solder wire feeding structure provided by the present invention;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of a motor mounting plate of an automatic soldering machine provided with a solder wire feeding structure provided by the present invention;

[0029] Figure 5 It is a left-side schematic diagram of the cross-sectional structure of a motor mounting plate of an automatic soldering machine provided with a solder wire feeding structure provided by the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of a dustproof shell of an automatic soldering machine provided by the present invention and provided with a solder wire feeding structure;

[0031] Figure 7 It is a schematic diagram of the position structure of the transmission gear of an automatic soldering machine provided by the present invention and provided with a solder wire feeding structure;

[0032] Figure 8 It is a schematic diagram of a partial explosion structure of an automatic soldering machine provided by the present invention and provided with a solder wire feeding structure;

[0033] Fig. 9 The invention provides an automatic soldering machine with a solder wire feeding structure. Figure 8 The enlarged structural diagram at A in the middle;

[0034] Fig.10 It is a schematic diagram of a slot structure of an automatic soldering machine provided with a solder wire feeding structure provided by the present invention;

[0035] Fig.11 It is a schematic diagram of the cross-sectional structure of a fan-shaped block of an automatic soldering machine provided with a solder wire feeding structure provided by the present invention;

[0036] Fig.12 The present invention provides a schematic diagram of the cross-sectional structure of an automatic soldering machine installation cylinder provided with a solder wire feeding structure.

[0037] In the figure: 1. operating table; 2. moving assembly; 3. tin wire body; 4. welding gun; 5. motor mounting plate; 6. gas storage box; 7. fan-shaped block; 8. tin wire reel; 9. connecting shaft; 11. support frame; 21. horizontal moving mechanism; 22. longitudinal moving mechanism; 23. vertical cylinder; 41. tin feeding head; 42. feeding pipe; 43. adjusting bracket; 51. wire feeding motor; 52. limit frame; 53. adjusting rod; 54. fixed side plate; 55. moving side plate; 56. spring 1; 57. connecting fixed plate; 61. air outlet; 62. mounting block; 63. air injection port; 70. air guide cavity; 71. raised part; 72 , fixing bead; 73, mounting cylinder; 74, pressure sensor; 75, spring two; 81, positioning sleeve; 82, wiring sleeve; 83, dust cover; 91, wire feeding wheel; 92, transmission gear; 231, mounting table; 232, mounting plate; 233, fixing frame; 511, driving shaft; 512, driving gear; 513, driven shaft; 514, driven gear; 531, threaded part; 551, screw sleeve; 701, air inlet; 721, sliding seat; 831, limiting slide rod; 832, spring three; 833, limiting seat; 834, pressure wheel; 835, pressure wheel shaft; 836, speed sensor; 911, slot. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0039] Embodiment 1, refer to Figure 1-Figure 12An automatic soldering machine with a solder wire feeding structure includes an operating table 1, a tin wire body 3, a welding gun 4, a tin wire reel 8 and a tin feeding head 41. The tin wire body 3 is wound on the tin wire reel 8. A support frame 11 is fixedly installed on the operating table 1. A moving component 2 is arranged on the support frame 11. The moving component 2 includes a transverse moving mechanism 21, a longitudinal moving mechanism 22 and a vertical cylinder 23. The transverse moving mechanism 21 is fixed on the top of the support frame 11. The longitudinal moving mechanism 22 is slidably arranged on a sliding member of the transverse moving mechanism 21. A mounting plate 232 is fixedly installed on the sliding member of the longitudinal moving mechanism 22. A motor mounting plate 5 and a mounting platform 231 are respectively installed on both sides of the mounting plate 232. A vertical cylinder 23 is fixedly installed on the side wall of the mounting platform 231. The output end of the vertical cylinder 23 is fixedly connected to a fixing frame 233. The welding gun 4 is fixedly connected to the fixing frame 233. The lateral moving mechanism 21 can realize the lateral movement of the welding gun 4 in the horizontal direction. The longitudinal moving mechanism 22 can realize the longitudinal movement of the welding gun 4 in the horizontal direction. The vertical cylinder 23 controls the vertical position of the welding gun 4 by telescoping. These three parts work together to enable the welding gun 4 to flexibly reach different positions for welding operations to meet the needs of different welding tasks.

[0040] An adjusting bracket 43 for adjusting the angle of the tin-feeding head 41 is fixedly connected to the lower side of the fixing frame 233. The adjusting bracket 43 can adjust the angle of the tin-feeding head 41 so that the welding gun 4 can be flexibly aimed at welding points at different positions to meet various complex welding task requirements. For example, when welding some electronic components with corners or curved surfaces, by adjusting the angle of the tin-feeding head 41, the solder can be accurately placed on the part that needs to be connected, thereby improving the accuracy and quality of welding. A positioning sleeve 81 is installed on the top plate of the motor mounting plate 5 for preliminarily positioning the end of the tin wire body 3. To ensure that the starting position of the tin wire is accurate during the wire feeding process, a wiring sleeve 82 is installed on the bottom plate of the motor mounting plate 5, which cooperates with the positioning sleeve 81 to guide the tin wire body 3 to be fed downward and play a certain protective role. A feeding pipe 42 is connected between the lower end of the wiring sleeve 82 and the upper end of the tin feeding head 41, which is responsible for stably feeding the tin wire body 3 to the tin feeding head 41 to ensure the continuity of wire feeding. A dustproof shell 83 is fixedly connected to the upper end of the wiring sleeve 82 to prevent dust and other impurities from entering the wire feeding system and affecting the wire feeding quality and equipment performance. At the same time, it provides an installation position for the detection component, and also includes:

[0041] Wire feeding wiping assembly: The wire feeding wiping assembly is arranged on the motor mounting plate 5, and the wire feeding wiping assembly can clean the rosin stained on the wheel set while feeding the wire;

[0042] Detection component: The detection component is installed on the dustproof shell 83, and the detection component can detect whether the equipment has wire blocking phenomenon;

[0043] Induction cleaning component: The induction cleaning component is arranged inside the wire feeding wiping component. The induction cleaning component can automatically clean the rosin adhering to the wire feeding wiping component when the wire feeding wiping component is saturated.

[0044] Furthermore, the wire feeding wiping assembly includes a wire feeding motor 51, a fixed side plate 54 and a movable side plate 55, the wire feeding motor 51 is fixed to the rear side wall of the motor mounting plate 5, the front side wall of the motor mounting plate 5 is fixedly connected with a connecting fixing plate 57 and a limiting frame 52, the fixed side plate 54 is fixed to the connecting fixing plate 57, an adjusting rod 53 is rotatably clamped on the limiting frame 52, the end of the adjusting rod 53 away from the fixed side plate 54 is provided with a threaded portion 531, a screw sleeve 551 is fixedly installed on the top of the movable side plate 55, the screw sleeve 551 is threadedly connected to the threaded portion 531, the side wall of the movable side plate 55 is against the side wall of the connecting fixing plate 57, and the fixed side The plate 54 is elastically connected to the movable side plate 55 by a spring 56. The output end of the wire feeding motor 51 is fixedly connected to the driving shaft 511. The end of the driving shaft 511 passes through the side walls of the motor mounting plate 5 and the fixed side plate 54 and is rotatably connected thereto. A driven shaft 513 is rotatably connected to the connecting fixed plate 57. A driving gear 512 is fixedly connected to the driving shaft 511. A driven gear 514 is fixedly connected to the driven shaft 513. The driving gear 512 is meshed with the driven gear 514. A connecting shaft 9 is rotatably connected to the fixed side plate 54 and the movable side plate 55. A wire feeding wheel 91 and a transmission gear 92 are fixedly connected to the connecting shaft 9.

[0045] The transmission gear 92 is located above the driving gear 512 and the driven shaft 513. The driving gear 512 and the driven shaft 513 are respectively meshed and connected with the corresponding transmission gear 92 above themselves. The driving gear 512 on the driving shaft 511 is meshed with the driven gear 514 on the driven shaft 513 to achieve power transmission. At the same time, the transmission gear 92 on the connecting shaft 9 rotatably connected to the fixed side plate 54 and the movable side plate 55 is respectively meshed with the driving gear 512 and the driven gear 514. Such a multi-stage gear transmission structure can ensure the transmission. The wire wheel 91 obtains a stable rotation speed and a suitable rotation direction, thereby realizing the smooth feeding of the tin wire body 3. The movable side plate 55 is provided with a limiting slide groove matching the driven shaft 513, and the movable side plate 55 is limited by the connection with the fixed plate 57. The movable side plate 55 is elastically connected with the spring 1 56 between the adjusting rod 53 and the fixed side plate 54 to adjust the position. When the adjusting rod 53 is rotated, the screw sleeve 551 moves along the threaded portion 531, thereby driving the movable side plate 55 to approach or move away from the fixed side plate 54. This design can flexibly adjust the spacing between the two wire feeding wheels 91 according to the tin wire bodies 3 of different diameters, ensure that the wire feeding wheels 91 can fit the tin wire tightly, and provide sufficient friction to stabilize the wire feeding. At the same time, the elastic connection of the spring 1 56 can also play a buffering and adaptive role.

[0046] Sector blocks 7 are fixedly mounted on the driving shaft 511 and the driven shaft 513. The sector blocks 7 on different shafts are arranged in opposite directions. A protrusion 71 is arranged in the middle of the sector block 7. The wire feeding wheel 91 is arranged in a fine-toothed shape. A slot 911 matching the protrusion 71 is arranged in the middle of the wire feeding wheel 91. Sponge blocks are pasted on the surface of the sector block 7 on the same side of the protrusion 71 and the protrusion 71. This design enables the sector block 7 to fit closely with the wire feeding wheel 91 during the rotation of the wire feeding wheel 91. When the wire feeding wheel 91 rotates, the sponge block can fully contact with the wire feeding wheel 91 to wipe and clean the rosin contaminated on the wire feeding wheel 91, thereby ensuring the cleanliness of the wire feeding wheel 91 and preventing the accumulation of rosin from affecting the wire feeding effect.

[0047] Furthermore, the end of the tin wire body 3 passes through the positioning sleeve 81, between the two wire feeding wheels 91, the dustproof shell 83, the routing sleeve 82, the feeding tube 42, and the tin feeding head 41 from top to bottom. The positioning sleeve 81 accurately positions the starting position of the tin wire body 3 to ensure that the tin wire is in the correct position before entering the wire feeding wheel 91, laying the foundation for subsequent stable wire feeding. Through the rotation of the wire feeding wheel 91, the friction force is used to drive the tin wire body 3 to be transported downward to realize the wire feeding function. The dustproof shell 83 is fixed to the upper end of the routing sleeve 82, which can effectively prevent dust and other impurities from entering the wire feeding system, avoiding the adverse effects of impurities on the transportation and welding quality of the tin wire. The routing sleeve 82 provides a stable transportation channel for the tin wire body 3, guiding the tin wire to move downward smoothly. The feeding tube 42 connects the routing sleeve 82 and the tin feeding head 41, and smoothly transports the tin wire body 3 to the tin feeding head 41. The tin feeding head 41 finally accurately delivers the tin wire to the welding position to complete the welding work.

[0048] In this embodiment, the transverse moving mechanism 21 is fixed on the top of the support frame 11, and drives the welding gun 4 to move horizontally in the horizontal direction through its own driving device. The longitudinal moving mechanism 22 is slidably arranged on the sliding part of the transverse moving mechanism 21, and relies on its own driving device to realize the longitudinal movement of the welding gun 4 in the horizontal direction. The vertical cylinder 23 is installed on the sliding part of the longitudinal moving mechanism 22, and the vertical position of the welding gun 4 is controlled by the extension and contraction of the cylinder. These three parts work together. According to the requirements of the welding task, the movement of the transverse moving mechanism 21, the longitudinal moving mechanism 22 and the vertical cylinder 23 is accurately controlled by the control system, so that the welding gun 4 can flexibly reach different positions for welding operations; the adjustment bracket 43 is fixed on the lower side of the fixed frame 233, and the multi-angle adjustment of the tin feeding head 41 is realized through the joint. The operator manually or through the control system operates the adjustment bracket 43 according to the position and angle requirements of the welding point to change the angle of the tin feeding head 41, so that the welding gun 4 can accurately align with the welding points at different positions.

[0049] The positioning sleeve 81 is installed on the top plate of the motor mounting plate 5, and the end of the tin wire body 3 passes through the positioning sleeve 81. The positioning sleeve 81 accurately positions the starting position of the tin wire body 3 to ensure that the tin wire is in the correct position before entering the wire feeding wheel 91. The wire feeding motor 51 is fixed on the rear side wall of the motor mounting plate 5, and the driving shaft 511 at its output end rotates, driving the driving gear 512 to rotate. The driving gear 512 meshes with the driven gear 514 on the driven shaft 513, thereby driving the driven shaft 513 to rotate, and the transmission gear 92 on the connecting shaft 9 that is rotatably clamped on the fixed side plate 54 and the movable side plate 55 meshes with the driving gear 512 and the driven gear 514 respectively. In this way, the power drives the connecting shaft 9 to rotate through the multi-stage gear transmission, and then the wire feeding wheel 91 on the connecting shaft 9 rotates. The gap between the two wire feeding wheels 91 is adapted to the tin wire body 3. When the wire feeding wheel 91 rotates, the friction force is used to drive the tin wire body 3 to be transported downward. The tin wire body 3 passes through the dustproof shell 83, the wiring sleeve 82 and the feeding pipe 42 in turn, and finally reaches the tin feeding head 41. The dustproof shell 83 prevents dust and other impurities from entering the wire feeding system, and the wiring sleeve 82 guides the tin wire body 3 to move downward, and the feeding pipe 42 smoothly transports the tin wire body 3 to the tin feeding head 41.

[0050] The welding gun 4 can move flexibly in three directions, and the tin feeding head 41 can adjust the angle, so that the automatic soldering machine can adapt to various complex welding tasks, whether it is welding electronic components with corners or curved surfaces, or welding points at different positions and angles, the solder can be accurately delivered to the welding position, greatly improving the flexibility and accuracy of welding.

[0051] When the wire feeding wheel 91 rotates, the sector block 7 fits tightly with the wire feeding wheel 91, so that the sector block 7 on the same side as the protrusion 71 and the sponge block attached to the surface of the protrusion 71 can fully contact the wire feeding wheel 91. During the wire feeding process, the sponge block wipes and cleans the rosin on the wire feeding wheel 91 to keep the wire feeding wheel 91 clean.

[0052] In particular, by rotating the adjusting rod 53, the threaded portion 531 at the end of the adjusting rod 53 interacts with the screw sleeve 551 at the top of the movable side plate 55, so that the screw sleeve 551 moves along the threaded portion 531, and the movable side plate 55 approaches or moves away from the fixed side plate 54 accordingly. At the same time, the movable side plate 55 and the fixed side plate 54 are elastically connected by a spring 56, which plays a role of buffering and self-adaptation. This design can flexibly adjust the distance between the two wire feeding wheels 91 according to the different diameters of the tin wire body 3, to ensure that the wire feeding wheel 91 can fit the tin wire tightly.

[0053] The sponge block on the wire feeding wheel 91 can clean the contaminated rosin in time to prevent the accumulation of rosin from affecting the rotation and wire feeding effect of the wire feeding wheel 91, thereby extending the service life of the wire feeding wheel 91 and the entire wire feeding system. A clean wire feeding wheel 91 and a stable wire feeding process are helpful to improve the welding quality and reduce welding defects caused by poor wire feeding or contamination of the wire feeding wheel 91, such as cold welding and leaking welding.

[0054] It should be noted that due to the meshing relationship between the gears, the wire feeding wheel 91 and the fan-shaped block 7 rotate in opposite directions, which brings many advantages: first, the relative movement speed of the two is increased, so that the sponge block and the surface of the wire feeding wheel 91 produce stronger friction, which can more effectively scrape off the stubbornly attached rosin; second, the contact angle is constantly changing and the contact frequency is increased, which can cover more surface areas of the wire feeding wheel 91, reduce cleaning dead corners, and achieve more comprehensive cleaning; third, the relative movement generated by the reverse rotation can promptly take away the scraped rosin debris to prevent it from re-attaching, reduce problems such as poor wire feeding, and at the same time, the rosin debris can be taken away in a relatively controllable manner to avoid splashing, keep the working area clean, and reduce pollution to equipment and the environment and potential harm to operators.

[0055] Example 2, refer to Figure 8-Figure 9 The detection component includes a speed sensor 836 and a limit slide bar 831 and a spring three 832 arranged opposite to each other. The limit slide bar 831 is slidably connected to the dustproof shell 83. The outer end of the limit slide bar 831 is elastically connected to the outer side wall of the dustproof shell 83 by a spring three 832. The end of the limit slide bar 831 located inside the dustproof shell 83 is fixedly connected to the limit seat 833. The inner rotation of the limit seat 833 is connected to a pressure wheel shaft 835, and a pressure wheel 834 is fixedly connected to the pressure wheel shaft 835. The pressure wheel 834 contacts the passing tin wire body 3 under the action of the spring three 832 and rotates with the movement of the tin wire. A speed sensor 836 is fixedly connected to the side wall of one of the limit seats 833.

[0056] It should be noted that one end of the speed sensor 836 is clamped on the outside of the pressure wheel shaft 835, and the speed sensor 836 is electrically connected to the external alarm. The speed sensor 836 is used to monitor the rotation speed of the pressure wheel shaft 835 in real time, thereby obtaining the speed information of the pressure wheel 834, and can transmit the detected speed signal to the external alarm.

[0057] In this embodiment, under normal wire feeding state, the tin wire body 3 passes through the pressure wheel 834 under the action of the wire feeding mechanism, and the pressure wheel 834 rotates with the movement of the tin wire. At this time, the pressure wheel shaft 835 also rotates synchronously, and the speed sensor 836 monitors the speed of the pressure wheel shaft 835 in real time, and feeds back the speed signal to the control system or external alarm.

[0058] When wire blockage occurs, the movement of the tin wire is obstructed, the speed slows down or even stops, which will cause a significant change in the rotation speed of the pressure wheel 834 in contact with the tin wire, and the speed of the pressure wheel shaft 835 also changes accordingly. After the speed sensor 836 detects this speed change, it transmits the signal to the external alarm. After receiving the signal, the external alarm will sound an alarm to remind the operator that the equipment has a wire blockage problem, so that the operator can take appropriate measures to solve the problem in time to avoid affecting the normal progress of the welding work due to wire blockage.

[0059] Example 3, refer to Figure 6-Figure 12 The induction cleaning assembly includes an air storage box 6, an air guide cavity 70, a mounting tube 73 and a pressure sensor 74. The interior of the air storage box 6 is hollow. A mounting block 62 is fixedly connected to one side of the air storage box 6. The mounting block 62 is fixedly connected to the inner side wall of the fixed side plate 54. The lower end of the air storage box 6 is connected with an air injection port 63. The side wall of the air storage box 6 facing the fan-shaped block 7 is provided with an air outlet 61. The air guide cavity 70 and the mounting tube 73 are both arranged inside the fan-shaped block 7. The side wall of the fan-shaped block 7 facing the air outlet 61 is opened. There is an air inlet 701, a spring 2 75 is fixedly connected to the bottom of the mounting tube 73, a pressure sensor 74 is fixedly connected to the end of the spring 2 75, a fixing bead 72 is fixedly connected to the upper side of the pressure sensor 74, a sliding seat 721 is fixedly connected to the inside of the fixing bead 72, a plurality of through holes are provided on one side of the sector block 7 facing the raised portion 71, the ends of the through holes penetrate the side walls of the sector block 7 and the air guide cavity 70, and the pressure sensor 74 is used to detect the pressure change of the fixing bead 72 and transmit the signal to the external air pump.

[0060] Furthermore, a groove is provided inside the gas storage box 6 for the connecting shaft 9 to move, so as to prevent the movement of the connecting shaft 9 from being obstructed. The air inlet 701 is matched with the air outlet 61, the sliding seat 721 is sealingly and slidingly connected with the inner cavity of the mounting tube 73, the rear side wall of the sector block 7 is flush with the front side wall of the gas storage box 6, and the gas guide cavity 70 receives the gas from the gas storage box 6 through the air inlet 701 which is opposite to the air outlet 61.

[0061] It should be noted that the lower end of the gas injection port 63 is through-connected to the external gas pump for injecting gas, the pressure sensor 74 is electrically connected to the external gas pump, and the external gas pump is set to a timed start mode, which will automatically start for a period of time after being triggered. The top of the fixed bead 72 in the initial state is located above the outer end surface of the sector block 7, ensuring that when the sector block 7 rotates to a position in contact with the wire feeding wheel 91, the fixed bead 72 can effectively contact the fine tooth portion of the wire feeding wheel 91. At this time, with the relative movement of the sector block 7 and the wire feeding wheel 91, a conflict can occur between the two, thereby shaking off the rosin attached to the wire feeding wheel 91. The mounting tube 73 is equidistantly arranged along the edge of the raised portion 71 and is symmetrically distributed on the left and right, ensuring the accuracy of the test results and improving the vibration cleaning effect. The fixed bead 72 is made of rubber material, which will not cause damage to the wire feeding wheel 91, and its surface can also effectively adhere to the rosin.

[0062] In this embodiment, initially, the top end of the fixing bead 72 is above the outer end surface of the sector block 7, and the sector block 7 rotates to a contact position with the wire feeding wheel 91, so that the fixing bead 72 can effectively contact with the fine teeth of the wire feeding wheel 91. As the wire feeding wheel 91 rotates, the sponge block gradually becomes saturated with rosin, and excess rosin on the wire feeding wheel 91 is squeezed out onto the fixing bead 72 through the fine teeth when it contacts the sector block 7, thereby increasing the surface thickness of the fixing bead 72.

[0063] Before the pressure change triggers cleaning, as the sector block 7 and the wire feeding wheel 91 move relative to each other, friction will occur between the two. Since the wire feeding wheel 91 is fine-toothed, when the fixed beads 72 on the sector block 7 come into contact with the fine teeth of the wire feeding wheel 91, this friction will produce a vibration effect, thereby shaking off the rosin attached to the wire feeding wheel 91. When the sector block 7 and the wire feeding wheel 91 move relative to each other, the friction generated by the fixed beads 72 and the fine teeth of the wire feeding wheel 91 can shake off part of the rosin, which reduces the burden of subsequent air blowing cleaning to a certain extent, improves the overall cleaning efficiency, and further ensures the cleanliness of the wire feeding wheel 91.

[0064] Pressure sensing and triggering: When the thickness of the fixed bead 72 increases to a certain extent and contacts the fine teeth of the wire feeding wheel 91 again, the pressure change generated is detected by the pressure sensor 74, and the pressure sensor 74 transmits the signal to the external air pump. After receiving the signal, the external air pump automatically starts for a period of time, and the gas in the air storage box 6 enters the air guide cavity 70 through the air outlet 61 and the air inlet 701, and then is sprayed out through the through hole on the fan-shaped block 7, blowing and cleaning the sponge block and the wire feeding wheel 91 to remove the accumulated rosin.

[0065] It should be noted that when the air outlet 61 is blocked by the fan-shaped block 7, most of the gas in the air storage box 6 will enter the air guide cavity 70. This is because the main channel of the gas is restricted and can only enter the air guide cavity 70 through the air inlet 701 directly opposite to the air outlet 61. The gas entering the air guide cavity 70 can be used to clean the sponge block in a centralized manner. Because the sponge block is located on the fan-shaped block 7, these gases can directly act on the sponge block to blow off the rosin adsorbed on its surface and pores, thereby achieving the purpose of centralized cleaning of the sponge block. When the air outlet 61 is no longer blocked by the fan-shaped block 7, the gas in the air storage box 6 has more flow paths, and part of the gas flows between the fixed side plate 54 and the movable side plate 5 5, it flows out naturally, which helps to blow away the scattered rosin debris that may exist in the surrounding environment and keep the working area clean. The other part of the gas will act on the fan-shaped block 7 and the wire feeding wheel 91. Since the fan-shaped block 7 and the wire feeding wheel 91 are in a rotating state, the gas can act on their surfaces from different angles to achieve multi-angle cleaning. In this process, the vibration between the fixed beads 72 and the fine teeth of the wire feeding wheel 91 further enhances the cleaning effect. The vibration between the fixed beads 72 and the fine teeth of the wire feeding wheel 91 can make the rosin that is more firmly attached fall off more easily, and the multi-angle gas blowing can blow away the fallen rosin in time to prevent it from attaching again.

[0066] The pressure sensor 74 detects the pressure change of the fixed bead 72 to automatically trigger cleaning, without frequent manual intervention, thereby improving the automation and efficiency of the equipment operation; the gas flow direction is controlled by whether the gas outlet 61 is blocked, thereby realizing centralized cleaning of the sponge block and multi-angle cleaning of the wire feeding wheel 91 and related components, ensuring that each surface of the wire feeding wheel 91 and the fan-shaped block 7 can be fully cleaned, and reducing the existence of cleaning dead corners. At the same time, the vibration effect between the fixed bead 72 and the fine teeth of the wire feeding wheel 91 further improves the thoroughness of cleaning, ensures the cleanliness of the wire feeding wheel 91 and the sponge block, and is conducive to the smooth progress of wire feeding and welding; the reasonable distribution and utilization of gas at different stages not only ensures the key cleaning of key parts, but also takes into account the cleaning of the overall working area. Through the blocking and diversion of the fixed side plate 54 and the movable side plate 55, the gas can act more effectively on the parts that need to be cleaned, thereby improving the utilization efficiency of the gas and reducing the waste of gas.

[0067] It should be noted that the specific model specifications of the cylinder and sensor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic soldering machine provided with a solder wire feeding structure, comprising an operating table (1), a tin wire body (3), a welding gun (4), a tin wire reel (8) and a tin feeding head (41), wherein the tin wire body (3) is wound and arranged on the tin wire reel (8), a support frame (11) is fixedly mounted on the operating table (1), a moving assembly (2) is arranged on the support frame (11), the moving assembly (2) comprises a transverse moving mechanism (21), a longitudinal moving mechanism (22) and a vertical cylinder (23), the transverse moving mechanism (21) is fixed on the top of the support frame (11), the longitudinal moving mechanism (22) is slidably arranged on a sliding member of the transverse moving mechanism (21), a mounting plate (232) is fixedly mounted on the sliding member of the longitudinal moving mechanism (22), and the mounting plate (232) A motor mounting plate (5) and a mounting platform (231) are respectively installed on both sides of the mounting platform (232), a vertical cylinder (23) is fixedly installed on the side wall of the mounting platform (231), an output end of the vertical cylinder (23) is fixedly connected to a fixing frame (233), the welding gun (4) is fixedly connected to the fixing frame (233), an adjusting bracket (43) for adjusting the angle of the tin-feeding head (41) is fixedly connected to the lower side of the fixing frame (233), a positioning sleeve (81) is installed on the top plate of the motor mounting plate (5), a wiring sleeve (82) is installed on the bottom plate of the motor mounting plate (5), a feeding pipe (42) is connected between the lower end of the wiring sleeve (82) and the upper end of the tin-feeding head (41), and a dust cover (83) is fixedly connected to the upper end of the wiring sleeve (82), characterized in that Also includes: Wire feeding wiping assembly: the wire feeding wiping assembly is arranged on the motor mounting plate (5), and the wire feeding wiping assembly can clean the rosin contaminated on the wheel set while feeding the wire; Detection component: the detection component is installed on the dustproof shell (83), and the detection component can detect whether the equipment has a wire blockage phenomenon; Induction cleaning component: The induction cleaning component is arranged inside the wire feeding wiping component, and the induction cleaning component can automatically clean the rosin adhered to the wire feeding wiping component when the wire feeding wiping component is saturated.

2. The automatic soldering machine with a solder wire feeding structure according to claim 1, characterized in that: The wire feeding wiping assembly comprises a wire feeding motor (51), a fixed side plate (54) and a movable side plate (55); the wire feeding motor (51) is fixed on the rear side wall of the motor mounting plate (5); the front side wall of the motor mounting plate (5) is fixedly connected with a connecting fixing plate (57) and a limiting frame (52); the fixed side plate (54) is fixed on the connecting fixing plate (57); an adjusting rod (53) is rotatably clamped on the limiting frame (52); the end of the adjusting rod (53) away from the fixed side plate (54) is provided with a threaded portion (531); a screw sleeve (551) is fixedly installed on the top of the movable side plate (55); the screw sleeve (551) is threadedly connected to the threaded portion (531); the side wall of the movable side plate (55) abuts against the side wall of the connecting fixing plate (57); the fixed side plate The wire feeding motor (51) is elastically connected to the movable side plate (54) through a spring (56); the output end of the wire feeding motor (51) is fixedly connected to a driving shaft (511); the end of the driving shaft (511) passes through the side walls of the motor mounting plate (5) and the fixed side plate (54) and is rotatably connected thereto; a driven shaft (513) is rotatably connected to the connecting fixed plate (57); a driving gear (512) is fixedly connected to the driving shaft (511); a driven gear (514) is fixedly connected to the driven shaft (513); the driving gear (512) is meshedly connected to the driven gear (514); a connecting shaft (9) is rotatably connected to the fixed side plate (54) and the movable side plate (55); a wire feeding wheel (91) and a transmission gear (92) are fixedly connected to the connecting shaft (9).

3. The automatic soldering machine with a solder wire feeding structure according to claim 2, characterized in that: The transmission gear (92) is located above the driving gear (512) and the driven shaft (513); the driving gear (512) and the driven shaft (513) are respectively meshed and connected with the corresponding transmission gear (92) above them; and a limiting sliding groove matching the driven shaft (513) is provided on the movable side plate (55).

4. The automatic soldering machine with a solder wire feeding structure according to claim 2, characterized in that: The driving shaft (511) and the driven shaft (513) are both fixedly mounted with a sector block (7), the sector blocks (7) on different shafts are arranged in opposite directions, a protrusion (71) is arranged in the middle of the sector block (7), the wire feeding wheel (91) is arranged in a fine tooth shape, a slot (911) matching the protrusion (71) is arranged in the middle of the wire feeding wheel (91), and a sponge block is pasted on the surface of the sector block (7) and the protrusion (71) on the same side as the protrusion (71).

5. The automatic soldering machine with a solder wire feeding structure according to claim 1, characterized in that: The end of the tin wire body (3) passes through the positioning sleeve (81), between the two wire feeding wheels (91), the dust cover (83), the wiring sleeve (82), the feeding pipe (42), and the tin feeding head (41) in sequence from top to bottom.

6. The automatic soldering machine with a solder wire feeding structure according to claim 1, characterized in that: The detection component includes a speed sensor (836) and a limit slide bar (831) and a spring three (832) arranged opposite to each other. The limit slide bar (831) is slidably connected to the dustproof shell (83). The outer end of the limit slide bar (831) is elastically connected to the outer side wall of the dustproof shell (83) through the spring three (832). The end of the limit slide bar (831) located inside the dustproof shell (83) is fixedly connected to the limit seat (833). The limit seat (833) is rotatably connected to a pressure wheel shaft (835). A pressure wheel (834) is fixedly connected to the pressure wheel shaft (835). A speed sensor (836) is fixedly connected to the side wall of one of the limit seats (833).

7. The automatic soldering machine with a solder wire feeding structure according to claim 6, characterized in that: One end of the rotation speed sensor (836) is clamped on the outside of the pressure wheel shaft (835), and the rotation speed sensor (836) is electrically connected to the external alarm.

8. The automatic soldering machine with a solder wire feeding structure according to claim 1, characterized in that: The induction cleaning assembly comprises an air storage box (6), an air guide cavity (70), a mounting tube (73) and a pressure sensor (74); the interior of the air storage box (6) is hollow; a mounting block (62) is fixedly connected to one side of the air storage box (6); the mounting block (62) is fixedly connected to the inner side wall of the fixed side plate (54); a gas injection port (63) is connected through the lower end of the air storage box (6); an air outlet (61) is provided on the side wall of the air storage box (6) facing the fan-shaped block (7); the air guide cavity (70) and the mounting tube (73) are both arranged inside the fan-shaped block (7); An air inlet (701) is provided on the side wall of the sector block (7) directly opposite to the air outlet (61); a spring 2 (75) is fixedly connected to the bottom of the mounting tube (73); a pressure sensor (74) is fixedly connected to the end of the spring 2 (75); a fixing bead (72) is fixedly connected to the upper side of the pressure sensor (74); a sliding seat (721) is fixedly connected to the interior of the fixing bead (72); a plurality of through holes are provided on one side of the sector block (7) facing the protruding portion (71); the ends of the through holes penetrate the side walls of the sector block (7) and the air guide cavity (70).

9. The automatic soldering machine with a solder wire feeding structure according to claim 8, characterized in that: The interior of the gas storage box (6) is provided with a slot for the connecting shaft (9) to move, the gas inlet (701) is matched with the gas outlet (61), the sliding seat (721) is sealingly slidably connected to the inner cavity of the mounting cylinder (73), and the rear side wall of the sector block (7) is flush with the front side wall of the gas storage box (6).

10. The automatic soldering machine with a solder wire feeding structure according to claim 8, characterized in that: The lower end of the gas injection port (63) is connected to the external gas pump, the pressure sensor (74) is electrically connected to the external gas pump, and the external gas pump is set to a timed start mode. In the initial state, the top of the fixing bead (72) is located above the outer end surface of the fan-shaped block (7), the mounting tube (73) is equidistantly arranged along the edge of the raised portion (71) and is symmetrically distributed on the left and right, and the fixing bead (72) is made of rubber material.

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