Welding device for coil production

Abstract

The invention relates to the technical field of welding devices, in particular to a welding device for coil production. The spraying mechanism is used for spraying scaling powder on the coil; the welding mechanism is used for welding the coil; the spraying mechanism comprises a spraying head; a storage box; the adjusting assembly is used for adjusting the flux spraying amount of the spraying head; the adjusting assembly comprises a mounting shell; the connecting pipe is fixedly mounted in the mounting shell; the movable pipe is mounted on the connecting pipe in a sleeving manner; the connecting rod is mounted on the mounting shell in a sliding manner; and the positioning piece is mounted on the connecting rod in a sleeving manner. According to the flux spraying device, through the arrangement of the adjusting assembly, the feeding speed of the flux of the spraying head can be controlled, so that the spraying amount is controlled, the requirements for spraying the flux on different coils are met, and the problem that the production efficiency is affected due to the fact that the spraying head is frequently and adaptively replaced is solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to a welding device for coil production. Background Art

[0002] A coil is usually a ring or cylinder made of wire with an insulating sheath, which is insulated from each other. The coil can be hollow or contain an iron core or a magnetic powder core. In electronics, the coil is also called an inductor. During the coil production process, the coil needs to be welded to other electronic components (such as iron cores, pins, capacitors, etc.).

[0003] A Chinese patent with application number CN202210402558.7 discloses an automatic welding machine for micro motor coils, which relates to the technical field of welding equipment. The present invention includes a base, a slot and a guide hole are provided on the upper side of the base, a through hole is provided on the inner wall of the slot, and the through hole and the guide hole are both connected to the cavity provided in the base; a rotating part is installed in the slot, and a motor for driving the rotating part to rotate is installed on the bottom surface of the slot; a mounting seat is fixed on the base, and an extension arm is hinged on the top of the mounting seat, and a welding head is vertically installed on the other end of the extension arm; a fixed seat is installed on the inner wall of the cavity, and a connecting part is hinged on the fixed seat, and the other end of the connecting part contacts the bottom surface of the rotating part through the through hole, and the extension arm and the connecting part are connected by a connecting rod passing through the guide hole. The present invention realizes that the wire head provided by the coil assembly is located directly below the welding head by rotating the rotating part, and the welding head moves downward, so as to facilitate the welding between the wire head and the connecting head provided by the coil assembly.

[0004] A flux coating device is disclosed in a Chinese patent with application number CN202011146052.1. According to the present invention, fixing strips are equidistantly arranged on the nozzle, and a nozzle of a caliber is arranged on the corresponding movable connection of the fixing strip. When the nozzle is performing flux spray coating, nozzles of various calibers can be attached. Nozzles of different calibers can be replaced according to actual requirements for coating, thereby ensuring the coating quality, ensuring the welding quality, and improving the economic benefits of the work; when nozzles of different calibers are used, a connection locking mechanism is provided, which makes the conversion of nozzles of different calibers very convenient and quick, and will not delay the coating work, thereby ensuring the processing efficiency. While ensuring the efficiency of the conversion coating work, the firmness and stability of the connection between the nozzle and the nozzle can also be ensured, thereby ensuring the stable progress of the coating work.

[0005] Although the existing welding device can realize the work of spraying flux on the coil, the amount of sprayed flux varies when facing coils of different specifications, so the spray head needs to be frequently replaced adaptively, which affects production efficiency.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0007] The object of the present invention is to provide a welding device for coil production which can effectively solve the above-mentioned technical problems.

[0008] In order to achieve the purpose of the present invention, the following technical scheme is adopted:

[0009] A welding device for coil production, comprising: a machine platform; a spraying mechanism for spraying flux on the coil; a welding mechanism for welding the coil;

[0010] The spraying mechanism comprises: a spraying head; a material storage box; and an adjusting component for adjusting the amount of flux sprayed by the spraying head;

[0011] The adjustment assembly comprises: a mounting shell; a connecting pipe fixedly mounted in the mounting shell; a movable pipe sleeved on the connecting pipe; a connecting rod slidably mounted on the mounting shell; a positioning piece sleeved on the connecting rod; a reset spring driving the positioning piece to reset; the spray head is fixedly mounted on the mounting shell, and the movable pipe is plugged and installed in the spray head; the connecting pipe is connected to the material storage box;

[0012] A cavity is provided on the side wall of the movable tube, and the cavity is connected to the spray head. The bottom end of the inner cavity of the movable tube is closed. A discharge hole 1 is provided on the inner wall of the movable tube, and the discharge hole 1 is connected to the cavity. A discharge hole 2 is provided on the side wall of the connecting tube, and the discharge hole 1 is connected to the discharge hole 2.

[0013] Furthermore, the spraying mechanism further comprises: a preheating component for preheating the coil;

[0014] The preheating assembly comprises: a telescopic rod fixedly mounted on the mounting shell; a heat preservation cover fixedly mounted on the other end of the telescopic rod; a linkage spring for driving the heat preservation cover to reset; and a heat dissipation pipe fixedly mounted in the heat preservation cover.

[0015] Furthermore, the spraying mechanism further comprises: an anti-drip component for preventing the flux in the spraying head from dripping;

[0016] The drip-proof assembly includes: a rotating rod rotatably mounted on the mounting shell; a baffle fixedly mounted on the bottom end of the rotating rod; a guide groove provided on the rotating rod; a round hole provided on the heat-insulating cover; a rolling element rotatably mounted in the round hole; and the rolling element is rollingly mounted in the guide groove.

[0017] Furthermore, the spraying mechanism further comprises: a cleaning component for cleaning dust on the surface of the coil;

[0018] The cleaning component comprises: a second annular pipe fixedly installed in the heat-insulating cover; and a spray head communicated with the second annular pipe.

[0019] Furthermore, the spraying mechanism further comprises: an air supply component for supplying air to the preheating component and the cleaning component;

[0020] The air supply assembly includes: a filter box and an air pump fixedly installed on the machine; a filter screen and a heating element fixedly installed in the filter box; an air suction head connected to the filter box; an air collecting pipe connected to the air pump; a switching unit for switching the gas flow direction in the air collecting pipe; the annular pipe 2 and the heat dissipation pipe are both connected to the air collecting pipe.

[0021] Furthermore, the switching unit includes: a piston movably installed in the air collecting pipe; a movable rod fixedly connected to the piston; a movable plate fixedly connected to the movable rod; a slider and a linkage rack fixedly connected to the movable plate; a linkage gear meshingly connected to the linkage rack; and a slide rail slidably connected to the slider.

[0022] Furthermore, the spraying mechanism further comprises: a moving component for driving the spraying head to move;

[0023] The moving assembly includes: a fixed box fixedly mounted on the machine platform; a movable frame slidably mounted on the fixed box; a power source for driving the movable frame to move; a guide block fixedly connected to the movable frame; a guide rail slidably connected to the guide block; the mounting shell and the material storage box are both fixedly connected to the movable frame.

[0024] Furthermore, the welding mechanism includes: a fixed box 2 fixedly mounted on the machine platform; a movable frame 2 slidably mounted on the fixed box 2; a power source 2 for driving the movable frame 2 to move; a guide block 2 fixedly connected to the movable frame 2; a guide rail 2 slidably connected to the guide block 2; and a welding machine body mounted on the movable frame 2.

[0025] Furthermore, the preheating assembly also includes: an annular tube 1 fixedly mounted on the welding machine body; an air outlet head connected to the annular tube 1; and the annular tube 1 is connected to a heat dissipation pipe.

[0026] Furthermore, it also includes: a rotating mechanism for driving the coil to rotate;

[0027] The rotating mechanism includes: a turntable rotatably mounted on the machine platform; a transmission gear ring coaxially connected to the turntable; a transmission gear meshingly connected to the transmission gear; a power source three for driving the transmission gear to rotate; and a placement slot opened on the turntable.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention provides a welding device for coil production. By adjusting the setting of the components, the feeding speed of the flux of the spray head can be controlled, thereby controlling the spraying amount, thereby meeting the needs of spraying flux for different coils, avoiding the problem of frequent adaptive replacement of the spray head and affecting production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0031] Figure 1 It is a three-dimensional schematic diagram of a welding device for coil production according to the present invention;

[0032] Figure 2 It is a three-dimensional schematic diagram of another angle of a welding device for coil production of the present invention;

[0033] Figure 3 It is a three-dimensional schematic diagram of a component spraying mechanism of a welding device for coil production of the present invention;

[0034] Figure 4 A welding device for coil production according to the present invention Figure 3 Enlarged view of point A in the middle;

[0035] Figure 5 It is a cross-sectional schematic diagram of a filter box component of a welding device for coil production of the present invention;

[0036] Figure 6 It is a three-dimensional schematic diagram of a component heat preservation cover of a welding device for coil production according to the present invention;

[0037] Figure 7 A welding device for coil production according to the present invention Figure 6 Enlarged view of point B in the middle;

[0038] Figure 8 It is a cross-sectional schematic diagram of a component insulation cover of a welding device for coil production according to the present invention;

[0039] Fig. 9 A welding device for coil production according to the present invention Figure 8 Enlarged view of point C in the middle;

[0040] Fig.10 A welding device for coil production according to the present invention Figure 8 Enlarged view of point D in the middle;

[0041] Fig.11 It is a three-dimensional schematic diagram of a heat dissipation pipe as a component of a welding device for coil production according to the present invention;

[0042] Fig.12 It is a cross-sectional schematic diagram of a component movable tube of a welding device for coil production of the present invention;

[0043] Fig.13 It is a three-dimensional schematic diagram of a component linkage rack of a welding device for coil production of the present invention;

[0044] Fig.14 The present invention is a schematic cross-sectional view of a component turntable of a welding device for coil production.

[0045] In the figure:

[0046] 1. Machine; 2. Spraying mechanism; 21. Spraying head; 22. Material storage box; 23. Adjustment assembly; 231. Mounting shell; 232. Connecting pipe; 233. Movable pipe; 234. Connecting rod; 235. Positioning piece; 236. Reset spring; 237. Discharge hole 1; 238. Discharge hole 2; 239. Cavity; 24. Preheating assembly; 241. Telescopic rod; 242. Insulation cover; 243. Linking spring; 244. Heat dissipation pipe; 245. Ring pipe 1; 246. Air outlet head; 25. Anti-drip assembly; 251. Rotating rod; 252. Baffle; 253. Guide groove; 254. Rolling element; 26. Cleaning assembly; 261. Ring pipe 2; 262. Injection head; 27. Air supply assembly; 271. Filter box; 272. Air pump; 273, filter screen; 274, suction head; 275, air collecting pipe; 276, switching unit; 2761, piston; 2762, movable rod; 2763, movable plate; 2764, slider; 2765, slide rail; 2766, linkage rack; 2767, linkage gear; 28, moving assembly; 281, fixed box one; 282, movable frame one; 283, power source one; 284, guide block one; 285, guide rail one; 3, welding mechanism; 31, welding machine body; 32, fixed box two; 33, movable frame two; 34, power source two; 35, guide block two; 36, guide rail two; 4, rotating mechanism; 41, turntable; 42, transmission gear ring; 43, transmission gear; 44, power source three; 45, placement slot. DETAILED DESCRIPTION

[0047] 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. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0048] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0049] like Figures 1 to 14 As shown, the present invention is a welding device for coil production, comprising: a machine table 1; a rotating mechanism 4 for driving the coil to rotate; a spraying mechanism 2 for spraying flux on the coil; and a welding mechanism 3 for welding the coil.

[0050] The rotating mechanism 4 includes: a turntable 41 rotatably mounted on the machine 1; a transmission gear ring 42 coaxially connected to the turntable 41; a transmission gear 43 meshingly connected to the transmission gear 43; a power source 3 44 for driving the transmission gear 43 to rotate, and the power source 3 44 is fixedly mounted on the machine 1; a placement groove 45 opened on the turntable 41, a plurality of placement grooves 45 are provided, and the placement groove 45 is composed of a circular groove and a rectangular groove, and the circular groove is connected to the rectangular groove, the circular groove is used to place the coil, and the rectangular groove is used to place the components welded with the coil, and the welding points of the coil and the components are connected together; in addition, a fixing mechanism can be set in the placement groove 45, such as the combination of an electric telescopic rod 241 and a clamping plate, so as to fix the coil and the components to avoid the coil and the components from shifting during the rotation process, affecting the welding quality, thereby improving the stability of welding.

[0051] After the coils and components are placed in the corresponding placement slots 45, the power source three 44 is started to drive the transmission gear 43 to rotate, the transmission gear 43 drives the transmission gear ring 42 to rotate, and the transmission gear ring 42 drives the turntable 41 to rotate, thereby driving the coils and components to rotate, so that the coils and components are first rotated to the spraying mechanism 2, and the welding machine of the coils and components is sprayed with flux through the spraying mechanism 2. After the spraying is completed, the turntable 41 drives the coils and components to rotate to the welding position for welding. After the welding is completed, the turntable 41 drives the coils and components to rotate to the initial position. At this time, the staff can take out the welded coils and components and replace the coils and components to be welded.

[0052] Since there are multiple placement slots 45, there are multiple placement stations for coils and components. After the coils and components are placed in a placement slot 45, the turntable 41 drives the coils and components to rotate. At this time, the staff can place the coils and components in the next placement slot 45 where no coils and components are placed, and so on. In this way, the staff can take out the coils and components that have been welded and replace the coils and components to be welded. At the same time, the spraying mechanism 2 and the welding mechanism 3 can process the coils and components at the corresponding positions respectively, thereby improving work efficiency.

[0053] It is to be added here that the power source three 44 is preferably: an electric motor.

[0054] The spraying mechanism 2 includes: a spray head 21; a storage box 22 for storing liquid flux; an adjusting component 23 for adjusting the amount of flux sprayed by the spray head 21; a preheating component 24 for preheating the coil; an anti-drip component 25 for preventing the flux in the spray head 21 from dripping; a cleaning component 26 for cleaning dust on the surface of the coil; an air supply component 27 for supplying air to the preheating component 24 and the cleaning component 26; and a moving component 28 for driving the spray head 21 to move.

[0055] The moving assembly 28 includes: a fixed box 281 fixedly mounted on the machine 1; a movable frame 282 slidably mounted on the fixed box 281; a power source 283 for driving the movable frame 282 to move; a guide block 284 fixedly connected to the movable frame 282; a guide rail 285 slidably connected to the guide block 284; and a material storage box 22 fixedly connected to the movable frame 282.

[0056] When spraying flux on the welding part of the coil, the spray head 21 is moved to the required position by starting the moving component 28, that is, by starting the power source 283 to drive the movable frame 282 to move downward, the spray head 21 can be driven to move downward, so that the spray head 21 moves to the required position and is ready for spraying flux.

[0057] When the movable frame 282 moves, it can drive the guide block 284 to slide on the guide rail 285. Through the cooperation between the guide block 284 and the guide rail 285, the movable frame 282 can be limited when moving, thereby improving the stability of the movable frame 282 when moving.

[0058] After the flux spraying is completed, the power source 283 is started to drive the movable frame 282 to reset upward, thereby driving the spray head 21 to reset.

[0059] It is to be added here that the power source 283 is preferably: a cylinder.

[0060] The adjustment assembly 23 includes: a mounting shell 231 fixedly mounted on the movable frame 282; a connecting pipe 232 fixedly mounted in the mounting shell 231; a movable pipe 233 sleeved and mounted on the connecting pipe 232; a connecting rod 234 slidably mounted on the mounting shell 231, a limited opening is provided on the mounting shell 231, and the connecting rod 234 is slidably mounted in the limited opening; a positioning member 235 sleeved and mounted on the connecting rod 234, and the positioning member 235 is composed of a sliding sleeve slidably mounted on the connecting rod 234 and a positioning rod group fixedly mounted on the sliding sleeve. A plurality of positioning holes are provided on the side wall of the mounting shell 231, and the plurality of positioning holes are linearly arranged from top to bottom, and the positioning rod is inserted into the positioning hole; a reset spring 236 drives the positioning member 235 to reset, one end of the reset spring 236 is fixedly connected to the positioning member 235, and the other end of the reset spring 236 is fixedly connected to the connecting rod 234; the spray head 21 is fixedly mounted on the mounting shell 231, and the movable tube 233 is inserted and installed in the spray head 21; the material storage box 22 is equipped with a pump body, and the pump body is connected to the connecting pipe 232 through a material guide pipe.

[0061] When spraying flux on the welding part of the coil, the spray head 21 is moved to the required position by starting the moving component 28. At this time, the pump body is started to suck out the flux in the storage box 22 and transport it to the connecting pipe 232 through the guide pipe.

[0062] A cavity 239 is provided on the side wall of the movable tube 233, and the cavity 239 is connected to the spray head 21. The bottom end of the inner cavity of the movable tube 233 is closed. A discharge hole 237 is provided on the inner wall of the movable tube 233, and the discharge hole 237 is connected to the cavity 239. A discharge hole 238 is provided on the side wall of the connecting tube 232, and the discharge hole 237 is connected to the discharge hole 238.

[0063] Since the bottom end of the inner cavity of the movable tube 233 and the bottom end of the connecting tube 232 are both closed, the process of the flux entering the spray head 21 from the connecting tube 232 is specifically as follows: after the flux enters the inner cavity of the connecting tube 232, it enters the inner cavity of the discharge hole 1 237 through the discharge hole 238, and enters the cavity 239 opened on the side wall of the movable tube 233 through the discharge hole 1 237. Since the cavity 239 is connected to the inner cavity of the spray head 21, the flux can enter the spray head 21 through the cavity 239, and be sprayed on the welding part of the coil through the spray head 21.

[0064] Although the existing welding device can spray flux on the coil, the amount of flux sprayed is different when facing coils of different specifications, so the spray head 21 needs to be frequently replaced adaptively, affecting production efficiency; in the present invention, the amount of flux sprayed by the spray head 21 can be adjusted by adjusting the component 23.

[0065] Specifically, by pulling the positioning piece 235, the positioning piece 235 slides along the axial direction of the connecting rod 234 and away from the mounting shell 231. At this time, the positioning piece 235 drives the reset spring 236 to stretch. When the positioning rod in the positioning piece 235 is separated from the positioning hole, the positioning piece 235 can be moved up and down. The positioning piece 235 drives the connecting rod 234 to move up and down, and the movable tube 233 is driven up and down by the connecting rod 234, so that the positions of the adjacent discharge holes 1 237 and the discharge holes 2 238 can be adjusted, thereby realizing the control of the feeding speed of the spray head 21, thereby controlling the spraying amount of the flux, and meeting the requirements of spraying flux for coils of different specifications.

[0066] Since there are several positioning holes and the positioning holes are arranged linearly from top to bottom, when the top end of the positioning rod is inserted into the inner cavity of the topmost positioning hole, the adjacent discharge hole 237 and the discharge hole 238 are completely aligned. At this time, the feeding speed of the spray head 21 is the fastest. When the positioning rod is gradually inserted downward into the inner cavity of the positioning hole, the part connecting the adjacent discharge hole 237 and the discharge hole 238 is gradually reduced, so that the feeding speed of the spray head 21 is gradually reduced, which makes it convenient for the staff to make corresponding adjustments according to coils of different specifications, and the operation is simple and quick.

[0067] Multiple discharge holes 1 237 and discharge holes 2 238 are provided, and the sizes are the same, and the adjacent discharge holes 1 237 and discharge holes 2 238 can only move relative to each other in the vertical straight line direction. When the adjacent discharge holes 1 237 and discharge holes 2 238 do not move relative to each other, they can be completely aligned. At this time, the feeding speed of the flux of the spray head 21 is the fastest, and the flux spraying amount is the largest. When the adjacent discharge holes 1 237 and discharge holes 2 238 move relative to each other, the interconnected parts are reduced. When the flux feeding speed of the spray head 21 is reduced, the amount of flux sprayed is reduced; when the adjacent discharge hole 1 237 and the discharge hole 2 238 are completely offset, there are no longer any interconnected parts. At this time, the flux no longer enters the spray head 21, and the spray head 21 cannot spray the flux. It can be seen that through the relative movement of the adjacent discharge hole 1 237 and the discharge hole 2 238, the feeding speed of the flux of the spray head 21 can be controlled, thereby controlling the spraying amount, thereby meeting the needs of spraying flux for different coils.

[0068] When the positioning rod is inserted into the inner cavity of the positioning hole at the bottom, the adjacent discharge hole 1 237 and the discharge hole 2 238 are no longer connected. At this time, the flux cannot enter the spray head 21. Therefore, after the flux spraying is completed, the positioning rod can be inserted into the inner cavity of the bottom positioning hole, avoiding the problem of flux entering the inner cavity of the spray head 21 and causing dripping, thereby playing an anti-drip effect. On the one hand, it prevents the flux inside the spray head 21 from dripping and causing pollution, and on the other hand, it reduces unnecessary waste of flux and reduces production costs.

[0069] It is supplemented here that the connecting rod 234 is of rectangular design, and the limiting opening matches the connecting rod 234, so that the connecting rod 234 moves linearly along the inner cavity of the limiting opening.

[0070] In the present invention, by adjusting the setting of the component 23, the feeding speed of the flux of the spray head 21 can be controlled, thereby controlling the spraying amount, thereby meeting the needs of spraying flux for different coils, avoiding frequent adaptive replacement of the spray head 21 and affecting production efficiency.

[0071] After the flux is sprayed, preheating treatment can ensure that the flux is in full contact with the welding surface under high temperature conditions, so as to more effectively clean and protect the welding surface and reduce welding defects such as cold solder joints and short circuits. In addition, preheating can reduce the temperature difference between the welding area and the overall temperature of the weldment. The smaller the temperature difference, the smaller the temperature non-uniformity between the welding area and the weldment structure, which helps to reduce welding stress and welding strain rate, thereby avoiding the generation of welding cracks.

[0072] The preheating assembly 24 includes: a telescopic rod 241 fixedly mounted on the mounting shell 231; a heat-insulating cover 242 fixedly mounted on the other end of the telescopic rod 241, the heat-insulating cover 242 being larger than the placement slot 45, so that the coils and components in the placement slot 45 can be completely covered, and the heat-insulating cover 242 is slidably connected to the spray head 21; a linkage spring 243 that drives the heat-insulating cover 242 to reset, one end of the linkage spring 243 is fixedly connected to the telescopic rod 241, and the other end of the linkage spring 243 is fixedly connected to the heat-insulating cover 242; a heat-dissipating pipe 244 fixedly mounted in the heat-insulating cover 242, a heat-conducting fin (not shown) is fixedly mounted on the heat-dissipating pipe 244, and the air inlet end of the heat-dissipating pipe 244 is connected to the air collecting pipe 275.

[0073] When the coil is preheated, hot air can be transported to the heat dissipation pipe 244 through the air supply component 27, and the air supply component 27 includes: a filter box 271 and an air pump 272 fixedly mounted on the machine 1; a filter 273 and a heating element fixedly mounted in the filter box 271; an air suction head 274 connected to the filter box 271, the air suction head 274 is connected to the filter box 271 through an air inlet pipe, and the air suction head 274 is fixedly mounted on the welding machine body 31; an air collecting pipe 275 connected to the air pump 272, the air collecting pipe 275 is connected to the air pump 272 through an air outlet pipe; a switching unit 276 for switching the gas flow direction in the air collecting pipe 275; the annular pipe 261 and the heat dissipation pipe 244 are both connected to the air collecting pipe 275; the heating element is preferably: an electric heating device; such as an electric heating wire, a semiconductor heating plate, etc.; the air in the filter box 271 can be heated by the heating element.

[0074] Specifically, first start the moving component 28 to drive the mounting shell 231 to move downward. Since the spray head 21 is fixedly installed on the mounting shell 231, the thermal insulation cover 242 is driven to move downward while driving the spray head 21 to move downward. When the bottom of the thermal insulation cover 242 abuts against the top of the turntable 41, the coil and components can be covered. At this time, the moving component 28 continues to drive the mounting shell 231 to move downward, driving the telescopic rod 241 to shorten, and driving the linkage spring 243 to deform. Through the elastic force of the linkage spring 243, a downward thrust can be applied to the thermal insulation cover 242, so that the thermal insulation cover 242 is pressed against the turntable 41, thereby improving the sealing between the thermal insulation cover 242 and the turntable 41, reducing heat loss, and improving the preheating effect of the coil and components.

[0075] After the spray head 21 moves downward to the required position, the moving assembly 28 stops running, and the air pump 272 is started at this time. The air pump 272 sucks out the filtered gas in the filter box 271. At this time, the filter box 271 is in a negative pressure state, so that the outside air enters the filter box 271 through the suction head 274 and the air inlet pipe in turn. Since the suction head 274 is fixedly installed on the welding machine body 31, the air with irritating smell generated during welding can be sucked into the filter box 271, and the dust and irritating smell in the air are filtered and purified through the filter net 273. The filtered clean gas is discharged through the pump body, thereby realizing the suction treatment of the gas with irritating smell generated during the welding process, avoiding the staff from inhaling the gas into the lungs and affecting their health.

[0076] The filtered air is sucked out by the air pump 272, and enters the collecting pipe 275 through the air outlet pipe, and then enters the heat dissipation pipe 244 through the air inlet end of the heat dissipation pipe 244. Since the heating element can heat the air in the filter box 271, the gas entering the heat dissipation pipe 244 is hot air, and the heat is dissipated through the heat-conducting fins on the heat dissipation pipe 244, thereby preheating the coil and components. On the one hand, it ensures that the flux is in full contact with the welding surface under high temperature conditions, so as to more effectively clean and protect the welding surface and reduce welding defects such as cold welding and short circuits; on the other hand, it reduces the temperature difference between the welding area and the overall temperature of the weldment. The smaller the temperature difference, the smaller the temperature non-uniformity between the welding area and the weldment structure, which helps to reduce welding stress and welding strain rate, thereby avoiding the generation of welding cracks.

[0077] When the flux spraying and preheating are completed, the moving component 28 is started to drive the mounting shell 231 to reset upward, and then synchronously drives the spray head 21 to reset. During the upward resetting process of the mounting shell 231, the cooperation between the telescopic rod 241 and the linkage spring 243 can drive the thermal insulation cover 242 to reset, so as to prepare for subsequent use.

[0078] The preheating assembly 24 also includes: an annular tube 245 fixedly mounted on the welding machine body 31 ; an air outlet 246 connected to the annular tube 245 ; and the annular tube 245 connected to the heat dissipation pipe 244 .

[0079] After the hot air in the heat dissipation pipe 244 is cooled, it enters the annular tube 245 and is ejected through the air outlet head 246. There are multiple air jet heads 262, which are evenly distributed in a ring shape on the annular tube 245. The multiple air outlet heads 246 all point to the welding head of the welding machine body 31, so that the gas ejected from the multiple air outlet heads 246 is all sprayed on the surface of the welding head, so that the dust on the surface of the welding head can be cleaned, the cleanliness of the surface of the welding head is improved, and thus the welding quality is improved.

[0080] Since the gas ejected from the gas outlet head 246 is clean gas, the cleaning effect of the welding joint is improved.

[0081] The drip-proof assembly 25 includes: a rotating rod 251 rotatably mounted on the mounting shell 231; a baffle 252 fixedly mounted on the bottom end of the rotating rod 251; a guide groove 253 provided on the rotating rod 251, the guide groove 253 consists of a spiral groove and a vertical groove, and the spiral groove and the vertical groove are interconnected; a circular hole provided on the heat-insulating cover 242, the rotating rod 251 passes through the inner cavity of the circular hole; a rolling member 254 rotatably mounted in the circular hole; the rolling member 254 is rollingly mounted in the guide groove 253.

[0082] When the spray head 21 is not in use, the baffle 252 is located at the initial position, that is, at the bottom of the spray head 21. At this time, the top of the baffle 252 is in contact with the bottom of the spray head 21. The setting of the baffle 252 can seal the bottom of the spray head 21, on the one hand, preventing the flux inside the spray head 21 from dripping and causing pollution, and on the other hand, reducing unnecessary waste of flux and reducing production costs.

[0083] When the spray head 21 is spraying flux, the moving component 28 drives the spray head 21 to move downward, and drives the insulation cover 242 to move downward. When the insulation cover 242 abuts against the turntable 41, it no longer moves downward. At this time, the mounting shell 231 drives the rotating rod 251 to continue to move downward. Since the rolling element 254 is at the bottom of the spiral groove at this time, when the rotating rod 251 moves downward, the rolling element 254 moves along the path of the spiral groove, so that the rotating rod 251 can move downward and rotate at the same time, thereby driving the baffle 252 to rotate. After the rotating rod 251 rotates 180 degrees, the rolling element 254 just enters the bottom end of the vertical groove. When the rotating rod 251 continues to move downward, the rolling element 254 moves along the path of the vertical groove. At this time, the rotating rod 251 no longer rotates. At the same time, the baffle 252 does not have a sealing effect on the spray head 21, and the spraying work can be carried out.

[0084] When spraying is completed, when the heat preservation cover 242 is reset upward, it can drive the rotating rod 251 to rotate in the opposite direction, thereby driving the baffle 252 to reset. At this time, the baffle 252 can, on the one hand, seal the bottom end of the spray head 21, and on the other hand, prevent dust from adhering to the bottom end of the spray head 21 when the spray head 21 is not in use, causing pollution to the inside of the spray head 21.

[0085] It is supplemented here that the rolling element 254 is preferably a bull's eye ball.

[0086] In the present invention, the cooperation between the adjustment component 23 and the anti-drip component 25 can achieve the effect of preventing flux dripping in multiple ways. On the one hand, it prevents the flux dripping inside the spray head 21 from causing pollution, and on the other hand, it reduces unnecessary waste of flux and reduces production costs.

[0087] The cleaning assembly 26 includes: a second annular pipe 261 fixedly installed in the heat-insulating cover 242; a nozzle 262 connected to the second annular pipe 261; and the second annular pipe 261 is connected to the air collecting pipe 275 through an air guide pipe.

[0088] When the gas in the gas collecting pipe 275 enters the annular pipe 261 through the annular pipe air guide pipe, it is ejected through the nozzle 262. There are multiple nozzles 262, which are evenly distributed in a ring shape on the annular pipe 261. The gas is sprayed on the welding point between the coil and the components through multiple nozzles 262, so that the dust at the welding point can be comprehensively cleaned, further improving the welding quality.

[0089] Since the gas sprayed from the nozzle 262 is clean gas, the cleaning effect on the welding point is improved.

[0090] The switching unit 276 includes: a piston 2761 movably installed in the gas collecting pipe 275; a movable rod 2762 fixedly connected to the piston 2761, a limiting hole is provided on the gas collecting pipe 275, the movable rod 2762 passes through the inner cavity of the limiting hole, and a sealing ring is installed in the limiting hole, so as to reduce the leakage of gas in the gas collecting pipe 275 from the limiting hole to the outside; a movable plate 2763 fixedly connected to the movable rod 2762; a slider 2764 and a linkage rack 2766 fixedly connected to the movable plate 2763; a linkage gear 2767 meshingly connected to the linkage rack 2766, and the linkage gear 2767 is fixedly sleeved on the rotating rod 251; a slide rail 2765 slidably connected to the slider 2764; a fixed plate is fixedly installed on the mounting shell 231, and the gas collecting pipe 275 and the slide rail 2765 are both fixedly connected to the fixed plate.

[0091] The piston 2761 separates the gas collecting pipe 275 into two independent spaces. Fig.11 As shown, the air inlet end of the heat dissipation pipe 244 is connected to the right end of the air collecting pipe 275, and the air guide pipe is connected to the left end of the air collecting pipe 275.

[0092] When the turntable 41 drives the coils and components to be welded to move to the spraying location, the moving assembly 28 simultaneously drives the spray head 21, the preheating assembly 24, and the cleaning assembly 26 to move downward. During this process, the piston 2761 is located in the inner cavity of the gas collecting pipe 275 near the right end, so that the gas in the gas collecting pipe 275 cannot flow to the right side of the piston 2761. At this time, the gas delivered to the gas collecting pipe 275 by the gas supply assembly 27 enters the annular pipe 261 through the air guide pipe and is sprayed out through multiple nozzles 262. When the moving assembly 28 drives the cleaning assembly 26 to gradually approach the turntable 41, the gas sprayed from the nozzle 262 can clean the welding points of the coils and components, thereby comprehensively cleaning the dust at the welding points, thereby improving the welding quality.

[0093] When the heat preservation cover 242 moves downward and abuts against the turntable 41, the heat preservation cover 242 no longer moves downward. At this time, the mounting shell 231 drives the rotating rod 251 to continue to move downward. Since the rolling element 254 is located at the bottom of the spiral groove at this time, when the rotating rod 251 moves downward, the rolling element 254 moves along the path of the spiral groove, so that the rotating rod 251 can move downward and rotate at the same time, thereby driving the baffle 252 to rotate. After the rotating rod 251 rotates 180 degrees, the rolling element 254 just enters the bottom end of the vertical groove. When the rotating rod 251 continues to move downward, the rolling element 254 moves along the path of the vertical groove. At this time, the rotating rod 251 no longer rotates. At the same time, the baffle 252 does not have a sealing effect on the spray head 21, and the spray head 21 can perform spraying.

[0094] During the rotation of the rotating rod 251, the connecting gear 2767 can be driven to rotate, the connecting gear 2767 drives the connecting rack 2766 to move, the connecting rack 2766 drives the movable plate 2763 to move, the movable plate 2763 drives the movable rod 2762 to move, and the movable rod 2762 drives the piston 2761 to move toward the left end of the inner cavity of the gas collecting pipe 275, so that the piston 2761 moves to the left side of the gas outlet end of the gas outlet pipe, so that the gas in the gas collecting pipe 275 cannot flow to the left side of the piston 2761. At this time, the gas delivered to the gas collecting pipe 275 by the gas supply assembly 27 enters the heat dissipation pipe 244 through the air inlet end of the heat dissipation pipe 244, and dissipates the heat through the heat-conducting fins on the heat dissipation pipe 244, thereby preheating the coils and components after spraying the flux.

[0095] Since in the present invention, the spraying mechanism 2 and the welding mechanism 3 work alternately, the welding machine body 31 does not perform welding work during the preheating process. At this time, the hot air in the heat dissipation pipe 244 enters the annular tube 245 after heat dissipation and is ejected through the air outlet head 246, so that the dust on the surface of the welding head can be cleaned, the cleanliness of the surface of the welding head is improved, thereby realizing the cleaning of the welding head before welding and improving the welding quality.

[0096] When preheating is completed, the moving component 28 is started to drive the spray head 21, the preheating component 24, and the cleaning component 26 to reset upward. Through the reset of the insulation cover 242, the rotating rod 251 can be driven to rotate in the opposite direction. On the one hand, it can drive the baffle 252 to reset, thereby sealing the bottom end of the spray head 21. On the other hand, it can drive the piston 2761 to reset, so that the gas in the gas collecting pipe 275 is again transported to the annular pipe 261 through the air guide pipe, preparing for subsequent cleaning.

[0097] At the same time, the turntable 41 drives the coils and components that have been sprayed and preheated to rotate to the welding position, and starts the welding mechanism 3 to weld the coils and components.

[0098] Since the air supply assembly 27 continuously supplies air into the air collecting pipe 275, and the air suction head 274 is fixedly mounted on the welding machine body 31, the air with a pungent smell generated during welding can be sucked into the filter box 271, and the dust and pungent smell in the air can be filtered and purified through the filter net 273. The filtered clean gas is discharged through the pump body, thereby realizing the suction treatment of the gas with a pungent smell generated during the welding process, avoiding the workers from inhaling the gas into the lungs and affecting their health.

[0099] The welding mechanism 3 includes: a fixed box 32 fixedly mounted on the machine table 1; a movable frame 33 slidably mounted on the fixed box 32; a power source 34 for driving the movable frame 33 to move; a guide block 35 fixedly connected to the movable frame 33; a guide rail 36 slidably connected to the guide block 35, and the guide rail 36 is fixedly mounted on the fixed box 32; a welding machine body 31 mounted on the movable frame 33, and the welding machine body 31 is mounted on the movable frame 33 through a three-axis moving module, and the three-axis moving module can drive the welding machine body 31 to move for applicability, thereby facilitating the welding of the coil.

[0100] When the coil and the components are welded, the power source 2 34 is started to drive the movable frame 2 33 to move downward, and the movable frame 2 33 drives the welding machine body 31 to move downward for welding, and drives the guide block 2 35 to slide on the guide rail 2 36. Through the mutual cooperation between the guide block 2 35 and the guide rail 2 36, the movable frame 2 33 can be limited, thereby improving the stability of the movable frame 2 33, and then improving the stability of the welding machine body 31 when moving.

[0101] When welding is completed, the power source 2 34 is started to drive the movable frame 2 33 to move upward, and drive the welding machine body 31 to reset upward, so as to prepare for subsequent use.

[0102] It is to be added here that the power source 2 34 is preferably: a cylinder.

[0103] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0104] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A welding device for coil production, characterized in that: include: Machine; A spraying mechanism for spraying flux on the coil; A welding mechanism for welding the coil; The spraying mechanism comprises: a spraying head; a material storage box; and an adjusting component for adjusting the amount of flux sprayed by the spraying head; The adjustment assembly comprises: a mounting shell; a connecting pipe fixedly mounted in the mounting shell; a movable pipe sleeved on the connecting pipe; a connecting rod slidably mounted on the mounting shell; a positioning piece sleeved on the connecting rod; a reset spring driving the positioning piece to reset; the spray head is fixedly mounted on the mounting shell, and the movable pipe is plugged and installed in the spray head; the connecting pipe is connected to the material storage box; A cavity is provided on the side wall of the movable tube, and the cavity is connected to the spray head. The bottom end of the inner cavity of the movable tube is closed. A discharge hole 1 is provided on the inner wall of the movable tube, and the discharge hole 1 is connected to the cavity. A discharge hole 2 is provided on the side wall of the connecting tube, and the discharge hole 1 is connected to the discharge hole 2.

2. A coil production welding device as claimed in claim 1, characterized in that: The spraying mechanism further includes: a preheating component for preheating the coil; The preheating assembly comprises: a telescopic rod fixedly mounted on the mounting shell; a heat preservation cover fixedly mounted on the other end of the telescopic rod; a linkage spring for driving the heat preservation cover to reset; and a heat dissipation pipe fixedly mounted in the heat preservation cover.

3. A coil production welding device as claimed in claim 2, characterized in that: The spraying mechanism further includes: an anti-drip component for preventing the soldering flux in the spraying head from dripping; The drip-proof assembly includes: a rotating rod rotatably mounted on the mounting shell; a baffle fixedly mounted on the bottom end of the rotating rod; a guide groove provided on the rotating rod; a round hole provided on the heat-insulating cover; a rolling element rotatably mounted in the round hole; and the rolling element is rollingly mounted in the guide groove.

4. A coil production welding device as claimed in claim 2, characterized in that: The spraying mechanism also includes: a cleaning component for cleaning dust on the surface of the coil; The cleaning component comprises: a second annular pipe fixedly installed in the heat-insulating cover; and a spray head communicated with the second annular pipe.

5. A coil production welding device as claimed in claim 4, characterized in that: The spraying mechanism further comprises: an air supply component for supplying air to the preheating component and the cleaning component; The air supply assembly includes: a filter box and an air pump fixedly installed on the machine; a filter screen and a heating element fixedly installed in the filter box; an air suction head connected to the filter box; an air collecting pipe connected to the air pump; a switching unit for switching the gas flow direction in the air collecting pipe; the annular pipe 2 and the heat dissipation pipe are both connected to the air collecting pipe.

6. A coil production welding device as claimed in claim 5, characterized in that: The switching unit includes: a piston movably installed in the air collecting pipe; a movable rod fixedly connected to the piston; a movable plate fixedly connected to the movable rod; a slider and a linkage rack fixedly connected to the movable plate; a linkage gear meshingly connected to the linkage rack; and a slide rail slidably connected to the slider.

7. A coil production welding device as claimed in claim 1, characterized in that: The spraying mechanism further includes: a moving component for driving the spraying head to move; The moving assembly includes: a fixed box fixedly mounted on the machine platform; a movable frame slidably mounted on the fixed box; a power source for driving the movable frame to move; a guide block fixedly connected to the movable frame; a guide rail slidably connected to the guide block; the mounting shell and the material storage box are both fixedly connected to the movable frame.

8. A coil production welding device as claimed in claim 2, characterized in that: The welding mechanism includes: a fixed box 2 fixedly mounted on the machine platform; a movable frame 2 slidably mounted on the fixed box 2; a power source 2 for driving the movable frame 2 to move; a guide block 2 fixedly connected to the movable frame 2; a guide rail 2 slidably connected to the guide block 2; and a welding machine body mounted on the movable frame 2.

9. A coil production welding device as claimed in claim 8, characterized in that: The preheating assembly also includes: an annular tube 1 fixedly mounted on the welding machine body; an air outlet head connected to the annular tube 1; and the annular tube 1 is connected to a heat dissipation pipe.

10. A coil production welding device as claimed in claim 1, characterized in that: Also includes: A rotating mechanism that drives the coil to rotate; The rotating mechanism comprises: a turntable rotatably mounted on the machine platform; A transmission gear ring coaxially connected to the turntable; a transmission gear meshingly connected to the transmission gear; a power source three for driving the transmission gear to rotate; and a placement slot arranged on the turntable.

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