Voice coil cotton thread welding machine

Abstract

The utility model provides a voice coil cotton thread welding machine which comprises a machine cabinet, and a main shaft station, a first cotton thread feeding station, a second cotton thread feeding station and a welding station are arranged on the machine cabinet. The main shaft station comprises a rotary driving device arranged on the cabinet, a base plate in driving connection with the rotary driving device, and a first main shaft mechanism and a second main shaft mechanism which are symmetrically arranged on the two sides of the base plate; each of the first spindle mechanism and the second spindle mechanism comprises a rotating seat arranged at the top of the base plate, a spindle rotationally connected to the rotating seat, and a spindle driving motor arranged on the base plate and in driving connection with the spindle; the first cotton thread feeding station and the second cotton thread feeding station are both used for supplying cotton thread sections to the main shaft; and the welding station is used for welding the cotton thread section on the leading-out end of the voice coil, so that the automation of cotton thread welding can be realized, the manpower is saved, the production efficiency is improved, and the stable welding quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of voice coil processing equipment, in particular to a voice coil cotton thread welding machine. Background Art

[0002] A voice coil is a coil that passes an electric current in a loudspeaker and is an important part of the mechanical wave system of an electrodynamic loudspeaker. It can also be said to be the heart of the loudspeaker. The voice coil mainly consists of a skeleton and a coil, and cotton threads need to be welded to the two lead-out ends of the coil. In the existing production process, generally, the voice coil after winding the coil is sleeved on a cylindrical jig 6 as shown in the appendix Figure 3 to position the voice coil and facilitate welding cotton threads to the two lead-out ends of the coil. At present, the welding operation of the voice coil cotton thread is basically carried out manually. It is difficult to guarantee the welding quality, a large amount of labor needs to be invested, the labor cost is increased, and the production efficiency is also low. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a voice coil cotton thread welding machine, which saves labor, improves production efficiency and ensures stable welding quality.

[0004] To solve the above technical problem, a voice coil cotton thread welding machine provided by the utility model comprises a cabinet. A main shaft station, a first cotton thread feeding station, a second cotton thread feeding station and a welding station are arranged on the cabinet. The main shaft station comprises a rotary driving device arranged on the cabinet, a backing plate drivingly connected to the rotary driving device, a first main shaft mechanism and a second main shaft mechanism symmetrically arranged on both sides of the backing plate. The first main shaft mechanism and the second main shaft mechanism both comprise a rotary seat arranged on the top of the backing plate, a main shaft rotatably connected to the rotary seat, and a main shaft driving motor arranged on the backing plate and drivingly connected to the main shaft. The first cotton thread feeding station and the second cotton thread feeding station are both used for supplying cotton thread segments to the main shaft. The welding station is used for welding the cotton thread segments to the lead-out ends of the voice coil.

[0005] Preferably, the first cotton thread feeding station and the second cotton thread feeding station both include a material feeding mechanism, a first X-axis linear driving mechanism, a wire pulling mechanism, a wire outlet mechanism, and a wire cutting mechanism; the material feeding mechanism includes a wire reel arranged on one side of the cabinet, a wire feeding driving motor arranged on the wire reel, and a wire feeding wheel drivingly connected to the wire feeding driving motor; the wire outlet mechanism includes a wire outlet seat, a rotating shaft connected to the wire outlet seat through a bearing, a wire outlet gun penetrating through the rotating shaft, and a square push head fixedly connected to one end of the rotating shaft. A wire outlet channel is penetratingly arranged in the center of the wire outlet gun. The first X-axis linear driving mechanism is arranged on the cabinet and is drivingly connected to the wire outlet seat; the wire pulling mechanism includes an X-axis driving cylinder arranged on the wire outlet seat, a push plate drivingly connected to the X-axis driving cylinder, and a wire pulling pneumatic gripper fixedly connected to the push plate. Clamping arms are installed on both grippers of the wire pulling pneumatic gripper. A U-shaped groove matching the square push head is arranged on one side of the push plate, and the square push head is movably arranged on the U-shaped groove; the wire cutting mechanism includes a wire cutting frame fixedly connected to the top of the wire outlet seat, a wire cutting driving cylinder arranged on the wire cutting frame, and a pneumatic scissors drivingly connected to the wire cutting driving cylinder.

[0006] Preferably, the welding station includes a gantry arranged on the cabinet, a second X-axis linear driving mechanism arranged on the gantry, an installation vertical plate drivingly connected to the second X-axis linear driving mechanism, a Z-axis linear driving mechanism arranged on the installation vertical plate, and a welding torch drivingly connected to the Z-axis linear driving mechanism.

[0007] Preferably, the first X-axis linear driving mechanism includes a first X-axis sliding seat arranged on the cabinet, a first X-axis sliding block slidably connected to the first X-axis sliding seat, and a first driving motor arranged on the cabinet and connected to the first X-axis sliding block through a lead screw. The wire outlet seat is fixedly connected to the first X-axis sliding block; the second X-axis linear driving mechanism includes a second X-axis sliding seat arranged on the gantry, a second X-axis sliding block slidably connected to the second X-axis sliding seat, and a second driving motor arranged on one side of the second X-axis sliding seat and connected to the second X-axis sliding block through a lead screw. The installation vertical plate is fixedly connected to the second X-axis sliding block; the Z-axis linear driving mechanism includes a Z-axis sliding block slidably connected to the installation vertical plate, and a third driving motor arranged on the installation vertical plate and connected to the Z-axis sliding block through a lead screw. The welding torch is fixedly connected to the Z-axis sliding block.

[0008] Preferably, an appearance inspection station is further arranged on the cabinet. The appearance inspection station includes a support frame arranged on the cabinet, a CCD camera and a supplementary light arranged on the support frame, and a display screen arranged on the gantry. The CCD camera is electrically connected to the display screen.

[0009] The beneficial effects of the present utility model are as follows: The present utility model provides a voice coil cotton thread welding machine. The main shaft is set to match the cylindrical fixture. The cylindrical fixture with the voice coil is assembled onto the main shafts of the first main shaft mechanism and the second main shaft mechanism. The backing plate is rotated by the rotation driving device to alternately move the voice coils on the main shafts of the first main shaft mechanism and the second main shaft mechanism to the welding station for welding processing. When the main shaft on the first main shaft mechanism moves to the welding station, a section of cotton thread is first supplied to the voice coil on the main shaft through the first cotton thread feeding station, and the cotton thread is welded to one end of the voice coil winding through the welding station. Then, a section of cotton thread is supplied to the voice coil on the main shaft through the second cotton thread feeding station, and the cotton thread is welded to the other end of the voice coil winding through the welding station. Then, the backing plate is rotated by the rotation driving device to perform the cotton thread welding operation on the voice coil on the main shaft on the second main shaft mechanism side, and the welded voice coil is taken out from the main shaft of the first main shaft mechanism. It can realize the automation of cotton thread welding, save manpower, improve production efficiency, and ensure stable welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Illustrates the external structure schematic diagram of the present utility model.

[0011] Figure 2 Illustrates the top view of the present utility model.

[0012] Figure 3 Illustrates the structural schematic diagram of the main shaft station of the present utility model.

[0013] Figure 4 Illustrates the structural schematic diagram of the first cotton thread feeding station of the present utility model.

[0014] Figure 5 Illustrates the structural schematic diagram of the welding station of the present utility model.

[0015] Figure 6 Illustrates the assembly structural schematic diagram of the wire outlet mechanism and the wire pulling mechanism of the present utility model.

[0016] Description of the attached reference numerals: spindle station 1, rotary drive device 10, backing plate 11, first spindle mechanism 12, rotary base 120, spindle 121, spindle drive motor 122, second spindle mechanism 13, first cotton thread feeding station 2, unwinding mechanism 20, unwinding rack 200, unwinding drive motor 201, unwinding wheel 202, first X-axis linear drive mechanism 21, first X-axis slide 210, first X-axis slider 211, first drive motor 212, wire pulling mechanism 22, X-axis drive cylinder 220, push plate 221, U-shaped groove 221a, wire pulling pneumatic gripper 222, clamping arm 223, wire outlet mechanism 23, wire outlet base 230, rotating shaft 231, wire outlet gun 232, square push head 233, wire cutting mechanism 24, wire cutting frame 240, wire cutting drive cylinder 241, pneumatic scissors 242, second cotton thread feeding station 3, welding station 4, gantry 40, second X-axis linear drive mechanism 41, second X-axis slide 410, second X-axis slider 411, second drive motor 412, Z-axis linear drive mechanism 43, Z-axis slider 430, third drive motor 431, welding torch 44, appearance inspection station 5, support frame 50, CCD camera 51, fill light 52, display screen 53, cylindrical fixture 6. Detailed implementation manners

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some but not all of the embodiments of the present disclosure.

[0018] All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0019] Refer to Figures 1-6 。

[0020] The present utility model provides a voice coil cotton thread welding machine, which includes a cabinet. A spindle station 1, a first cotton thread feeding station 2, a second cotton thread feeding station 3 and a welding station 4 are arranged on the cabinet. The spindle station 1 includes a rotary drive device 10 arranged on the cabinet, a backing plate 11 drivingly connected to the rotary drive device 10, and a first spindle mechanism 12 and a second spindle mechanism 13 symmetrically arranged on both sides of the backing plate 11. Both the first spindle mechanism 12 and the second spindle mechanism 13 include a rotary base 120 arranged on the top of the backing plate 11, a spindle 121 rotatably connected to the rotary base 120, and a spindle drive motor 122 arranged on the backing plate 11 and drivingly connected to the spindle 121. Both the first cotton thread feeding station 2 and the second cotton thread feeding station 3 are used to supply cotton thread segments to the spindle 121. The welding station 4 is used to weld the cotton thread segments to the lead-out ends of the voice coil coils.

[0021] Its working principle is as follows: The main shaft 121 is set to match the cylindrical jig 6. The cylindrical jig 6 sleeved with a voice coil is assembled onto the main shafts 121 of the first main shaft mechanism 12 and the second main shaft mechanism 13. The rotating drive device 10 drives the backing plate 11 to rotate. The rotating drive device 10 can drive the divider to work through a motor, and the divider drives the backing plate 11 to rotate at an angle of 180°, so that the voice coils on the main shafts 121 of the first main shaft mechanism 12 and the second main shaft mechanism 13 are alternately moved to the welding station 4 for welding processing. When the main shaft 121 on the first main shaft mechanism 12 moves to the welding station 4, a section of cotton thread is first supplied to the voice coil on the main shaft 121 through the first cotton thread feeding station 2, and the cotton thread is welded to one end of the voice coil winding through the welding station 4. Then, a section of cotton thread is supplied to the voice coil on the main shaft 121 through the second cotton thread feeding station 3, and the cotton thread is welded to the other end of the voice coil winding through the welding station 4. Then, the rotating drive device 10 drives the backing plate 11 to rotate to perform the cotton thread welding operation on the voice coil on the main shaft 121 on the second main shaft mechanism 13 side, and the welded voice coil is taken out from the main shaft 121 of the first main shaft mechanism 12, which can realize the automation of cotton thread welding, save manpower, improve production efficiency, and ensure stable welding quality.

[0022] Based on the above embodiments, the first cotton thread feeding station 2 and the second cotton thread feeding station 3 both include a material feeding mechanism 20, a first X-axis linear driving mechanism 21, a wire pulling mechanism 22, a wire outlet mechanism 23, and a wire cutting mechanism 24; the material feeding mechanism 20 includes a wire reel 200 arranged on one side of the cabinet, a wire feeding driving motor 201 arranged on the wire reel 200, and a wire feeding wheel 202 drivingly connected to the wire feeding driving motor 201; the wire outlet mechanism 23 includes a wire outlet seat 230, a rotating shaft 231 connected to the wire outlet seat 230 through a bearing, a wire outlet gun 232 penetrating through the rotating shaft 231, and a square push head 233 fixedly connected to one end of the rotating shaft 231. A wire outlet channel is penetratingly arranged in the center of the wire outlet gun 232. The first X-axis linear driving mechanism 21 is arranged on the cabinet and is drivingly connected to the wire outlet seat 230; the wire pulling mechanism 22 includes an X-axis driving air cylinder 220 arranged on the wire outlet seat 230, a push plate 221 drivingly connected to the X-axis driving air cylinder 220, and a wire pulling pneumatic gripper 222 fixedly connected to the push plate 221. Clamping arms 223 are installed on both clamping jaws of the wire pulling pneumatic gripper 222. A U-shaped groove 221a matching the square push head 233 is arranged on one side of the push plate 221, and the square push head 233 is movably arranged on the U-shaped groove 221a; the wire cutting mechanism 24 includes a wire cutting frame 240 fixedly connected to the top of the wire outlet seat 230, a wire cutting driving air cylinder 241 arranged on the wire cutting frame 240, and a pneumatic scissors 242 drivingly connected to the wire cutting driving air cylinder 241. Specifically, the cotton thread reel is installed on the wire feeding wheel 202, and the end of the cotton thread is led out from the wire outlet channel of the wire outlet gun 232 through between the two clamping arms 223. When the voice coil moves to the welding station 4, the first X-axis linear driving mechanism 21 drives the wire pulling mechanism 22, the wire outlet mechanism 23, and the wire cutting mechanism 24 to approach the voice coil side. The wire pulling pneumatic gripper 222 drives the two clamping arms 223 to close to clamp the cotton thread. The X-axis driving air cylinder 220 drives the wire pulling pneumatic gripper 222 to move forward to pull the cotton thread forward, and the wire feeding driving motor 201 drives the wire feeding wheel 202 to rotate for cotton thread feeding operation. The forward moving push plate 221 will drive the square push head 233 to roll in the U-shaped groove 221a, and the rotating rotating shaft 231 will drive the wire outlet gun 232 to rotate, so that the end of the cotton thread swings downward and is placed on the lead-out end of the coil. Then, the welding station 4 welds the end of the cotton thread and one end of the coil. Then, the first X-axis linear driving mechanism 21 drives the wire outlet seat 230 to retreat, so that the wire outlet gun 232 retreats, and the wire cutting driving air cylinder 241 drives the pneumatic scissors 242 to move forward, so that the pneumatic scissors 242 cut the cotton thread.

[0023] Based on the above embodiments, the welding station 4 includes a gantry 40 arranged on the cabinet, a second X-axis linear drive mechanism 41 arranged on the gantry 40, a mounting vertical plate 42 drivingly connected to the second X-axis linear drive mechanism 41, a Z-axis linear drive mechanism 43 arranged on the mounting vertical plate 42, and a welding torch 44 drivingly connected to the Z-axis linear drive mechanism 43. Specifically, during the welding process, after the end of the cotton thread is placed on the lead-out end of the coil, the welding torch 44 is driven by the Z-axis linear drive mechanism 43 to move downward and contact the end of the coil, and then the welding torch 44 is driven by the second X-axis linear drive mechanism 41 to move a short distance along the X-axis direction, so that the welding torch 44 performs welding along the X-axis direction, so that the cotton thread is firmly welded to the lead-out end of the coil.

[0024] Based on the above embodiments, the first X-axis linear drive mechanism 21 includes a first X-axis slide 210 arranged on the cabinet, a first X-axis slider 211 slidably connected to the first X-axis slide 210, and a first drive motor 212 arranged on the cabinet and connected to the first X-axis slider 211 through a lead screw. The wire outlet seat 230 is fixedly connected to the first X-axis slider 211; the second X-axis linear drive mechanism 41 includes a second X-axis slide 41 arranged on the gantry 40, a second X-axis slider 411 slidably connected to the second X-axis slide 41, and a second drive motor 412 arranged on one side of the second X-axis slide 41 and connected to the second X-axis slider 411 through a lead screw. The mounting vertical plate 42 is fixedly connected to the second X-axis slider 411; the Z-axis linear drive mechanism 43 includes a Z-axis slider 430 slidably connected to the mounting vertical plate 42, and a third drive motor 431 arranged on the mounting vertical plate 42 and connected to the Z-axis slider 430 through a lead screw. The welding torch 44 is fixedly connected to the Z-axis slider 430. Specifically, when the first drive motor 212 operates, it will drive the first X-axis slider 211 to move left and right along the first X-axis slide 210, thereby driving the wire pulling mechanism 22, the wire outlet mechanism 23, and the wire cutting mechanism 24 to move left and right; when the second drive motor 412 operates, it will drive the second X-axis slider 411 to move left and right along the second X-axis slide 41, thereby driving the welding torch 44 to move left and right; when the third drive motor 431 operates, it will drive the Z-axis slider 430 to move up and down along the mounting vertical plate 42, thereby driving the welding torch 44 to move up and down.

[0025] Based on the above embodiments, an appearance detection station 5 is further provided on the cabinet. The appearance detection station 5 includes a support frame 50 provided on the cabinet, a CCD camera 51 and a fill light 52 provided on the support frame 50, and a display screen 53 provided on the gantry 40. The CCD camera 51 is electrically connected to the display screen 53. After the voice coil completes the cotton thread welding, the rotary drive device 10 drives the backing plate 11 to rotate, so that the completed voice coil moves to the lower side of the CCD camera 51. The voice coil is illuminated by the fill light 52, and the voice coil is photographed by the CCD camera 51 and the image is sent to the display screen 53 for display and judgment to check whether the welding condition is qualified.

[0026] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A voice coil cotton thread welding machine, comprising a cabinet, characterized in that, The cabinet is provided with a main shaft station, a first cotton thread feeding station, a second cotton thread feeding station, and a welding station; the main shaft station includes a rotary driving device arranged on the cabinet, a backing plate drivingly connected to the rotary driving device, a first main shaft mechanism and a second main shaft mechanism symmetrically arranged on both sides of the backing plate. The first main shaft mechanism and the second main shaft mechanism both include a rotary seat arranged on the top of the backing plate, a main shaft rotatably connected to the rotary seat, and a main shaft driving motor arranged on the backing plate and drivingly connected to the main shaft; the first cotton thread feeding station and the second cotton thread feeding station are both used to supply cotton thread segments to the main shaft; the welding station is used to weld the cotton thread segments to the lead-out ends of the voice coil coils.

2. The voice coil cotton thread welding machine according to claim 1, characterized in that, The first cotton thread feeding station and the second cotton thread feeding station both include a feeding mechanism, a first X-axis linear driving mechanism, a wire pulling mechanism, a wire outlet mechanism, and a wire cutting mechanism; the feeding mechanism includes a wire reel arranged on one side of the cabinet, a wire feeding driving motor arranged on the wire reel, and a wire feeding wheel drivingly connected to the wire feeding driving motor; the wire outlet mechanism includes a wire outlet seat, a rotating shaft connected to the wire outlet seat through a bearing, a wire outlet gun penetrating through the rotating shaft, and a square push head fixedly connected to one end of the rotating shaft. A wire outlet channel is penetrated through the center of the wire outlet gun. The first X-axis linear driving mechanism is arranged on the cabinet and drivingly connected to the wire outlet seat; the wire pulling mechanism includes an X-axis driving cylinder arranged on the wire outlet seat, a push plate drivingly connected to the X-axis driving cylinder, and a wire pulling pneumatic gripper fixedly connected to the push plate. Clamping arms are installed on both clamping jaws of the wire pulling pneumatic gripper. A U-shaped groove matching the square push head is arranged on one side of the push plate, and the square push head is movably arranged on the U-shaped groove; the wire cutting mechanism includes a wire cutting frame fixedly connected to the top of the wire outlet seat, a wire cutting driving cylinder arranged on the wire cutting frame, and a pneumatic scissors drivingly connected to the wire cutting driving cylinder.

3. The voice coil cotton thread welding machine according to claim 2, characterized in that, The welding station includes a gantry arranged on the cabinet, a second X-axis linear driving mechanism arranged on the gantry, an installation vertical plate drivingly connected to the second X-axis linear driving mechanism, a Z-axis linear driving mechanism arranged on the installation vertical plate, and a welding gun drivingly connected to the Z-axis linear driving mechanism.

4. The voice coil cotton thread welding machine according to claim 3, characterized in that The first X-axis linear drive mechanism includes a first X-axis slide seat disposed on the cabinet, a first X-axis slider slidably connected to the first X-axis slide seat, and a first drive motor disposed on the cabinet and connected to the first X-axis slider by a lead screw. The wire outlet seat is fixedly connected to the first X-axis slider. The second X-axis linear drive mechanism includes a second X-axis slide seat disposed on the gantry, a second X-axis slider slidably connected to the second X-axis slide seat, and a second drive motor disposed on one side of the second X-axis slide seat and connected to the second X-axis slider by a lead screw. The mounting vertical plate is fixedly connected to the second X-axis slider. The Z-axis linear drive mechanism includes a Z-axis slider slidably connected to the mounting vertical plate, and a third drive motor disposed on the mounting vertical plate and connected to the Z-axis slider by a lead screw. The welding torch is fixedly connected to the Z-axis slider.

5. The voice coil cotton thread welding machine according to claim 4, characterized in that An appearance inspection station is further provided on the cabinet. The appearance inspection station includes a support frame disposed on the cabinet, a CCD camera and a supplementary light disposed on the support frame, and a display screen disposed on the gantry. The CCD camera is electrically connected to the display screen.

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