Miniaturized wire clamping assembly and wire winding spot welding device

Abstract

The present invention provides a miniaturized wire clamping assembly and a wire winding spot welding device. The wire clamping assembly includes a clip assembly and a wire clamping driving assembly, and the wire clamping driving assembly drives the clip assembly to move; the clip assembly includes a first clip block, a second clip block, a fixed block and a clip block driving assembly. The first clip block includes a fixed end and a wire clamping end. The fixed end of the first clip block and the second clip block are fixedly arranged on the fixed block. The clip block driving assembly drives the wire clamping end of the first clip block to move towards or away from the second clip block. The wire clamping end of the first clip block moves elastically. With the above structure, before wire clamping, the wire clamping end of the first clip block moves away from the second clip block, and the wire clamping end of the first clip block deflects to store energy. After the wire enters between the first clip block and the second clip block, under the elastic force of the wire clamping end of the first clip block, the wire clamping end of the first clip block moves towards the second clip block, increasing the clamping force between the first clip block and the second clip block, clamping the thinner wire, thereby ensuring the stability of the thinner wire.

Description

Technical Field

[0001] The present invention relates to the field of coil processing equipment, and more particularly to a miniaturized wire clamping assembly and a winding and spot welding device. Background Art

[0002] In a winding device, a wire clamping mechanism is used to clamp the head or tail of a wire, facilitating the winding mechanism to wind the wire. The existing wire clamping mechanisms generally include two clamping blocks and a clamping block driving device. The clamping block driving device drives one clamping block to move towards the other clamping block, thereby clamping the wire located between the two clamping blocks. When the wire is extremely thin and is wound around a small-sized skeleton, by driving the entire clamping block to move and cooperate with the other clamping block to clamp the wire, the wire cannot be stably clamped, and the wire is likely to fall off between the clamping blocks during the winding process. Summary of the Invention

[0003] The first object of the present invention is to provide a miniaturized wire clamping assembly that can more firmly clamp thinner wires.

[0004] The second object of the present invention is to provide a winding and spot welding device including the above-mentioned miniaturized wire clamping assembly.

[0005] To achieve the above first object, the miniaturized wire clamping assembly provided by the present invention includes a clip assembly and a wire clamping driving assembly, and the wire clamping driving assembly drives the clip assembly to move; the clip assembly includes a first clamping block, a second clamping block, a fixed block, and a clamping block driving assembly. The first clamping block includes a fixed end and a wire clamping end. The fixed end of the first clamping block and the second clamping block are fixedly arranged on the fixed block, and the clamping block driving assembly drives the wire clamping end of the first clamping block to move towards or away from the second clamping block, and the wire clamping end of the first clamping block moves elastically.

[0006] As can be seen from the above solution, before the clip assembly clamps the wire, the wire clamping driving assembly drives the wire clamping end of the first clamping block to move away from the second clamping block, causing the wire clamping end of the first clamping block to deviate relative to the fixed end of the first clamping block, and the wire clamping end of the first clamping block stores energy. After the wire enters between the first clamping block and the second clamping block, under the elastic force of the wire clamping end of the first clamping block, the wire clamping end of the first clamping block moves towards the second clamping block, and the clamping force between the first clamping block and the second clamping block is increased, clamping the thinner wire, thereby ensuring the stability of the thinner wire.

[0007] A further solution is that a limiting groove is provided on the side wall of the fixed block, the first clamping block is arranged in the limiting groove, the second clamping block covers the limiting groove, and the clamping block driving assembly passes through the fixed block to drive the wire clamping end of the first clamping block to move, and the first clamping block is arranged between the second clamping block and the clamping block driving assembly.

[0008] It can be seen that the first clamping block is arranged in the limiting groove, and the width of the limiting groove limits the movement of the wire clamping end of the first clamping block, preventing the wire clamping end from deviating too much and losing elasticity. The second clamping block covers the limiting groove, further limiting the movement of the wire clamping end of the first clamping block.

[0009] A further solution is that the clamping block driving assembly includes a first air cylinder and a first air inlet. A first installation groove and a first ventilation pipe are arranged in the fixed block. The first installation groove is communicated with the limiting groove. The first air cylinder is arranged in the first installation groove. The first ventilation pipe is respectively connected to the first air inlet and the first air cylinder. The first air cylinder drives the wire clamping end of the first clamping block to move.

[0010] It can be seen that when the wire clamping end of the first clamping block is driven by the air cylinder, both the air cylinder and the ventilation pipe are arranged inside the fixed block, reducing the volume of the clip assembly and facilitating the movement of the clip assembly within the wire winding spot welding device.

[0011] A further solution is that the clamping block driving assembly includes a second air cylinder. A second installation groove is arranged on the fixed block. The second installation groove is communicated with the limiting groove. The second air cylinder is arranged in the second installation groove. The first ventilation pipe is connected to the second air cylinder; the first installation groove and the second installation groove are collinear along the extension direction of the limiting groove. The second air cylinder drives the wire clamping end of the first clamping block to move.

[0012] It can be seen that the two air cylinders are arranged along the extension direction of the limiting groove, and the two air cylinders drive the wire clamping end of the first clamping block to move simultaneously, enabling the wire clamping end of the first clamping block to move sufficiently.

[0013] A further solution is that the wire clamping assembly includes two clip assemblies and a connecting block. The two clip assemblies are arranged on the connecting block. The wire clamping driving assembly drives the connecting block to move, and the second clamping blocks in the two clip assemblies are arranged close to each other.

[0014] It can be seen that driving the connecting block to move drives the two clip assemblies to rotate simultaneously. The second clamping blocks in the two clip assemblies are arranged close to each other to adapt to the distance between the two wire nozzles in the wire winding spot welding device. Moreover, the two second clamping blocks are arranged close to each other, which can reduce the distance between the two wire materials and ensure the wire winding effect.

[0015] A further solution is that a first inclined surface is arranged on the side wall of the first clamping block facing the second clamping block, and the first inclined surface inclines away from the second clamping block. A second inclined surface is arranged on the side wall of the second clamping block facing the first clamping block, and the second inclined surface inclines away from the first clamping block. The first inclined surface and the second inclined surface are arranged opposite to each other.

[0016] It can be seen that the arrangement of the first inclined surface and the second inclined surface forms a wider notch between the first clamping block and the second clamping block, and the notch can be used to guide the wire material entering between the first clamping block and the second clamping block.

[0017] A further solution is that a second air vent pipe is arranged inside the fixed block, and the air outlet of the second air vent pipe is located between the first clamping block and the second clamping block.

[0018] It can be seen that the second air vent pipe located between the first clamping block and the second clamping block blows away the wire ends remaining between the first clamping block and the second clamping block, preventing the remaining wire ends from sticking inside the clip assembly.

[0019] A further solution is that the number of clip assemblies is two, and the second air vent pipes in the two clip assemblies are simultaneously connected to the intake pipe.

[0020] It can be seen that the second air vent pipes in the two clip assemblies are connected to the same intake pipe, enabling the intake pipe to simultaneously control the second air vent pipes to blow away the residual wire materials inside the clip assemblies, achieving synchronization.

[0021] A further solution is that the wire clamping drive assembly includes a first linear cylinder, a mounting block, and a second linear cylinder. The first linear cylinder is arranged on the mounting block, the second linear cylinder drives the mounting block to move, the first linear cylinder drives the clip assembly to move, and the driving direction of the first linear cylinder and the driving direction of the second linear cylinder are perpendicular.

[0022] It can be seen that the wire clamping drive assembly enables the clip assembly to move in two different directions only through two linear cylinders, with a simple structure.

[0023] To achieve the above second objective, the wire winding spot welding device provided by the present invention includes the miniaturized wire clamping assembly as described above. Description of the Drawings

[0024] Figure 1 It is a structural diagram of an embodiment of the wire winding spot welding device of the present invention.

[0025] Figure 2 It is a structural diagram of the feeding assembly in an embodiment of the wire winding spot welding device of the present invention.

[0026] Figure 3 It is a structural diagram of the ejecting assembly in an embodiment of the wire winding spot welding device of the present invention.

[0027] Figure 4 It is a structural diagram of the main shaft assembly in an embodiment of the wire winding spot welding device of the present invention.

[0028] Figure 5 It is a structural diagram of the connection between the moving shaft assembly and the fixed shaft assembly in an embodiment of the wire winding spot welding device of the present invention.

[0029] Figure 6 It is a structural diagram of the wire winding assembly in an embodiment of the wire winding spot welding device of the present invention.

[0030] Figure 7 It is a structural diagram of the wire clamping assembly in an embodiment of the wire winding spot welding device of the present invention.

[0031] Figure 8 It is a structural diagram of the clip assembly in the embodiment of the wire winding spot welding device of the present invention.

[0032] Figure 9 It is a structural diagram of the clip assembly from another angle in the embodiment of the wire winding spot welding device of the present invention.

[0033] Figure 10 It is a cross-sectional view of two clip assemblies in the embodiment of the wire winding spot welding device of the present invention.

[0034] Figure 11 It is a structural diagram of the fixed block in the clip assembly in the embodiment of the wire winding spot welding device of the present invention.

[0035] Figure 12 It is a structural diagram of the spot welding assembly in the embodiment of the wire winding spot welding device of the present invention.

[0036] Figure 13 It is a structural diagram of the spot welding assembly from another angle in the embodiment of the wire winding spot welding device of the present invention.

[0037] Figure 14 It is a structural diagram of the cutter assembly in the embodiment of the wire winding spot welding device of the present invention.

[0038] Figure 15 It is a structural diagram of the grinding block assembly in the embodiment of the wire winding spot welding device of the present invention.

[0039] Figure 16 It is a structural diagram of the wire pressing assembly in the embodiment of the wire winding spot welding device of the present invention.

[0040] Figure 17 is Figure 16 An enlarged view of location A.

[0041] Figure 18 It is a structural diagram of the blanking assembly in the embodiment of the wire winding spot welding device of the present invention.

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Specific embodiments

[0043] The wire winding spot welding device of the present invention is used to process a skeleton wire winding into an inductance coil by spot welding, and the inductance coil can be used in a transformer. A wire clamping assembly is provided in the wire winding spot welding device. The clip assembly in the wire clamping assembly drives the wire clamping end of the first clip block to move towards or away from the second clip block to clamp a thinner wire through a wire clamping driving assembly, and the wire clamping driving assembly is arranged in the fixed block, making the clip assembly small in volume and more convenient to set the moving track of the clip assembly.

[0044] See Figure 1The winding spot welding device includes a mounting platform 10, a feeding component 1, a spindle component 2, a winding component 5, a spot welding component 6, a wire clamping component 7, a wire pressing component 8 and a feeding component 9. The feeding component 1, the spindle component 2, the winding component 5, the spot welding component 6, the wire clamping component 7, the wire pressing component 8 and the feeding component 9 are respectively arranged on the mounting platform 10. The feeding component 1 is used to convey the skeleton to the spindle component 2. A winding place is arranged on the spindle component 2. The spindle component 2 includes a moving shaft component 3 and a fixed shaft component 4. A winding place is arranged between the moving shaft component 3 and the fixed shaft component 4. The moving shaft component 3 and the fixed shaft component 4 are used to clamp the skeleton and drive the skeleton to rotate at the winding place. A wire nozzle 51 is arranged on the winding component 5. The wire passes through the wire nozzle, and the wire nozzle drives the wire to move to the spindle component 2. The wire clamping component 7 is used to clamp the wire to facilitate the wire winding. The wire pressing component 8 is used to press the wire on the skeleton to facilitate the spot welding of the spot welding component 6. The spot welding assembly 6 is used to weld the wire to a fixed object, and the unloading assembly 9 is used to remove the spot-welded coil from the winding spot welding device.

[0045] See also Figure 2 The feeding assembly 1 includes a vibration plate 11, a feeding assembly 12 and a feeding conveying assembly. A linear track 13 is arranged on the vibration plate 11, and the feeding assembly 12 is arranged in the extension direction of the linear track 13. Figure 3 The ejection assembly 12 includes an ejection block 121 and an ejection drive assembly 122. The ejection block 121 is provided with a loading position 1211, a stopper 1212 and two side plates 1213. The stopper 1212 and the two side plates 1213 enclose the loading position 1211, and one loading position 1211 corresponds to one skeleton. The loading position 1211 is provided with an opening 1214 toward the linear track 13, and the opening 1214 connects the loading position 1211 with the linear track 13. The ejection drive assembly drives the ejection block 121 to move toward or away from the linear track 13. The materials on the vibration plate 11 are orderly arranged on the linear track 13 and moved to the loading position 1211. One skeleton is placed in one loading position 1211. The ejection drive assembly drives the ejection block 121 to move away from the linear track 13, so that the loading position 1211 is staggered from the linear track 13, and the ejection block 121 blocks the skeleton of the linear track 13 from continuing to move. The feeding and conveying assembly includes a suction nozzle and a suction nozzle moving driving assembly, and the suction nozzle moving driving assembly drives the suction nozzle to move between the loading position 1211 and the spindle assembly 2. The suction nozzle is used to suck the skeleton in the loading position 1211 tightly and move the skeleton to the winding position. For a small skeleton, the skeleton can be transferred by the suction nozzle to make the skeleton more stable.

[0046] In this embodiment, the ejector driving assembly 122 includes a cylinder 1221, a compression spring 1222, and a mounting bracket 1223. The cylinder 1222 is disposed on the mounting bracket 1223. A limiting plate 1224 is provided on the mounting bracket 1223. The compression spring 1222 abuts between the cylinder 1221 and the limiting plate 1224. The cylinder 1221 drives the ejector block 121 to move. The arrangement of the compression spring 1222 can buffer the driving force of the cylinder 1221.

[0047] See Figure 4 and Figure 5 , a winding area is formed between the moving shaft assembly 3 and the fixed shaft assembly 4, and winding of the skeleton starts at the winding area. The moving shaft assembly 3 includes a first fixing bracket 31, a moving shaft 32, and a moving shaft driving assembly 33. The moving shaft 32 and the moving shaft driving assembly are disposed on the first fixing bracket 31. The moving shaft driving assembly drives the moving shaft 32 to move toward or away from the fixed shaft assembly 4.

[0048] The fixed shaft assembly 4 includes a second fixing bracket 41 and a fixed shaft 42. The fixed shaft 42 is disposed on the second fixing bracket 41. The moving shaft 32 and the fixed shaft 42 are collinearly arranged and rotate synchronously in the same direction.

[0049] A first positioning groove 321 is provided at the end of the moving shaft 32 facing the fixed shaft 42, and a second positioning groove 421 is provided at one end of the fixed shaft 42 facing the moving shaft 32. The first positioning groove 321 communicates with the second positioning groove 421. When the moving shaft 32 and the fixed shaft 42 clamp the skeleton, both ends of the skeleton are respectively located in the first positioning groove 321 and the second positioning groove 421. The first positioning groove 321 and the second positioning groove 421 position the skeleton and provide sufficient space for winding on the skeleton, improving the stability of the skeleton.

[0050] The moving shaft driving assembly 33 includes a translation driving assembly. The translation driving assembly includes a mounting bracket 331, a first compression spring 332, a moving plate 333, and a translation driving device 334. The translation driving device 334 is a cylinder. The moving shaft 32 rotates within the mounting bracket 331. The first compression spring 332 abuts between the mounting bracket 331 and the moving plate 333. The translation driving device 334 drives the moving plate 333 to move. Since the moving shaft 32 rotates within the mounting bracket 331 and the translation driving device 334 drives the moving plate 333 to move, driving the first compression spring 332 and the mounting bracket 331 to move, the movement of the moving shaft 32 is achieved. The first compression spring 332 can buffer the driving force of the translation driving device 334, avoiding damaging the skeleton while clamping the skeleton between the moving shaft 32 and the fixed shaft 42.

[0051] The moving shaft drive assembly 33 includes a rotating shaft drive assembly. The rotating shaft drive assembly includes a rotary drive device 335, a rotating connecting rod 336, and a plurality of drive belts 337. The rotating connecting rod 336 extends between the moving shaft assembly 3 and the fixed shaft assembly 4. The rotary drive device is connected to one axial end of the rotating connecting rod 336 through the drive belt 337. The moving shaft 32 and the fixed shaft 42 are respectively connected to two axial ends of the rotating connecting rod 336 through the drive belt 337. By driving the rotation of the rotating connecting rod 336 by the rotary drive device 335, the moving shaft 32 and the fixed shaft 42 connected to the rotating connecting rod 336 at the same time are driven to rotate, realizing the synchronous rotation of the moving shaft 32 and the fixed shaft 42. In this embodiment, sawteeth 338 are respectively arranged at both axial ends of the fixed shaft 42, the moving shaft 32, and the rotating connecting rod 336, and the sawteeth 338 respectively extend along the axial direction of the component where they are located. The fixed shaft 42 is connected to the first axial end of the rotating connecting rod 336 through the drive belt 337, and the moving shaft 32 is connected to the second axial end of the rotating connecting rod 336 through the drive belt 337. The rotary drive device 335 is a servo motor, and the rotary drive device 335 is connected to the first axial end of the rotating connecting rod 336 through the drive belt 337. Since the translation drive assembly drives the movement of the moving shaft 32, the sawteeth 338 on the moving shaft 32 are arranged with sufficient length along the axial direction of the moving shaft 32, so that after the moving shaft 32 moves, it still remains connected to the drive belt 337.

[0052] The main shaft assembly 2 includes a limit detection assembly 21. The limit detection assembly 21 includes a first sensor 211, a second sensor 212, a first detection block 213, and a second detection block 214. The first sensor 211 and the second sensor 212 are arranged side by side along a first direction, and the first direction intersects with the moving direction of the moving shaft 32. The first detection block 213 and the second detection block 214 are arranged on the moving plate. Along the moving direction of the moving shaft 32, the first sensor 211 and the second sensor 212 are respectively arranged between the first detection block 213 and the second detection block 214. Detection grooves 215 are respectively arranged on the first sensor 211 and the second sensor 212. The first detection block 213 passes through the detection groove 215 of the first sensor 211, and the second detection block 214 passes through the detection groove 215 of the second sensor 212. In the limit detection assembly 21, the first sensor 211 and the second sensor 212 are located between the first detection block 213 and the second detection block 214. Along the moving direction of the moving shaft 32, the first detection block 213 and the second detection block 214 are staggeredly arranged, so that when the moving shaft 32 moves towards the fixed shaft 42, the first detection block 213 passes through the detection groove 215 of the first sensor 211, and when the moving shaft 32 moves away from the fixed shaft 42, the second detection block 214 passes through the detection groove of the second sensor. The first detection block 213 and the second detection block 214 respectively detect the forward or backward movement of the moving shaft 32, so as to better control the displacement of the movement of the moving shaft 32 and better clamp the skeleton.

[0053] In this embodiment, the wire winding assembly 5 is arranged on the first fixing frame 31. Along the vertical direction, the wire winding assembly 5 is arranged above the moving shaft assembly 3. Refer to Figure 6 , the wire winding assembly 5 includes at least one wire nozzle 51 and a wire nozzle moving assembly. The wire nozzle 51 extends along the vertical direction, and the wire nozzle moving assembly drives the wire nozzle 51 to move towards or away from the main shaft assembly 2. When the number of wire nozzles 51 is only one, a wire passes through the wire nozzle 51, and when the skeleton starts to rotate, single-wire winding is carried out. When the number of wire nozzles 51 is two, and each wire nozzle 51 correspondingly penetrates a wire, when the wire nozzle moving assembly moves to drive the two wire nozzles 51 to rotate simultaneously, since the moving shaft 32 and the fixed shaft 42 are collinear in the horizontal direction, the two wires start to be twisted, and at the same time, the skeleton rotates for winding. This kind of wire twisting structure is simple and occupies little space, making it easier to reasonably layout the device.

[0054] The wire nozzle moving assembly includes a moving plate 52, a fifth fixing frame 53, a wire nozzle translation driving assembly 54, and a wire nozzle rotation driving assembly 55. The wire nozzle rotation driving assembly 55 is arranged on the moving plate 52, and the wire nozzle translation driving assembly 54 drives the moving plate 52 to move. In this embodiment, the wire nozzle translation driving assembly 54 includes an X-direction moving assembly, a Y-direction moving assembly, and a Z-direction moving assembly. The X-direction moving assembly includes a first rotating motor 541 and a first lead screw 542. The first lead screw 542 extends along the X direction. The fifth fixing frame 53 is provided with a through hole 531, and the first lead screw 542 passes through the through hole 531. The first lead screw 542 and the first rotating motor 541 are arranged on the first fixing frame 31. The first rotating motor 541 is connected to drive the first lead screw 542 through a transmission belt 543, driving the connection of the fifth fixing frame connected to the first lead screw 542. Since the wire nozzle 51, the Y-direction moving assembly, and the Z-direction moving assembly are arranged on the fifth fixing frame 53, the movement of the wire nozzle 51 in the X direction is realized. The Y-direction moving assembly includes a sixth fixing frame 544, a second rotating motor, and a second lead screw 545. The second lead screw 545 extends along the Y direction. The X direction and the Y direction are perpendicular in the horizontal plane. The second lead screw 545 passes through the sixth fixing frame 544. The second rotating motor drives the second lead screw 545 to rotate through a transmission belt, driving the movement of the sixth fixing frame 544 on the fifth fixing frame 53. The Z-direction moving assembly is arranged on the sixth fixing frame 544. The Z-direction moving assembly includes a third rotating motor 546 and a third lead screw 547. The third lead screw 547 extends along the Z direction. The Z direction is perpendicular to the horizontal plane where the X direction is located. The third lead screw 547 is connected to the moving plate 52. The third rotating motor 546 drives the third lead screw 547 to rotate through a transmission belt 548, driving the movement of the moving plate 52.

[0055] The nozzle rotation driving assembly 55 includes a fourth rotary motor 551, a connecting rod 552, a rotating rod 553, a sixth fixed frame 554 and a protruding plate 555. The protruding plate 555 is arranged on the side wall of the moving plate 52 away from the Z-direction moving assembly, and the connecting rod 552 is arranged between the fourth rotary motor 551 and the protruding plate 555 in the vertical direction. The nozzle 51 passes through the rotating rod 553, and the rotating rod 553 is arranged in the sixth fixed frame 554. The fourth rotary motor 551 drives the connecting rod 552 to rotate. Since the rotating rod 553 is connected to the connecting rod 552 through the transmission belt 556, the rotation of the connecting rod 552 drives the rotating rod 553 to rotate in the sixth fixed frame 554, thereby driving the nozzle 51 to rotate.

[0056] In this embodiment, the clamping assembly 7 can be located between the moving shaft 32 and the thread nozzle 51. Figure 7 The clamp assembly 7 includes a clamp assembly 71, a connection block 72, and a clamp drive assembly 73. The clamp assembly 71 is used to clamp the wire. The clamp assembly 71 is arranged on the connection block 72. The clamp drive assembly 73 drives the connection block 72 to move, thereby driving the clamp assembly 71 to move. In this embodiment, there are two clamp assemblies 71, and one clamp assembly 71 is used to clamp the wire in one wire nozzle 51.

[0057] See also Figure 8 , Figure 9 and Figure 10 The clamp assembly 71 includes a first clamp block 711, a second clamp block 712, a fixed block 713 and a clamp block driving assembly 714. The first clamp block 711 includes a fixed end and a wire clamping end. The first clamp block 711 is elastic. The fixed end of the first clamp block 711 and the second clamp block 712 are fixedly arranged on the fixed block 713. The clamp block driving assembly 714 drives the wire clamping end of the first clamp block 711 to move toward or away from the second clamp block 712. In this embodiment, the first clamp block 711 is a spring sheet. The fixed end of the first clamp block 711 is fixed to the fixed block 713. When the clamp block driving assembly 714 drives the wire clamping end of the first clamp block 711 to move away from the second clamp block 712, the fixed end of the first clamp block 711 stores energy. After the clamp block driving assembly 714 stops driving, the first clamp block 711 clamps the thinner wire with the second clamp block 712 under the action of its own elastic force.

[0058] In this embodiment, the clamp block driving assembly 714 drives the fixed end of the first clamp block 711 to move by means of a cylinder. Figure 11, a limiting groove 7131, a first mounting groove 7132, and a second mounting groove 7133 are provided on the side wall of the fixed block 713 in one clip assembly 71 facing the other clip assembly 71. Along the vertical direction, the first mounting groove 7132 and the second mounting groove 7133 are collinearly arranged along the extending direction of the limiting groove 7131. The second mounting groove 7133 is arranged between the first mounting groove 7132 and the limiting groove 7131, and the second mounting groove 7133 is arranged above the limiting groove 7131. The limiting groove 7131 communicates with the first mounting groove 7132 and the second mounting groove 7133 respectively. The first clip block 711 is arranged in the limiting groove 7131, and the fixed end of the first clip block 711 is arranged below the second mounting groove. The second clip block 712 covers the limiting groove 7131. The first clip block 711 is arranged between the second clip block 712 and the clip driving assembly 714. The wire clamping end of the first clip block 711 moves in the limiting groove 7131. The second clip block 712 is arranged between the first clip block 711 and the other clip assembly 71. The clip driving assembly 714 includes a first cylinder 7141, a first air inlet 7142, and a second cylinder 7143. The first cylinder 7141 is arranged in the first mounting groove 7132, and the second cylinder 7143 is arranged in the second mounting groove 7133. The first cylinder 7141 and the second cylinder 7143 respectively drive the wire clamping end of the first clip block 711 to move. A first air pipe 7134 is arranged in the fixed block 713. The first air pipe 7134 is respectively connected with the first air inlet 7142 and the first cylinder 7141. The first air pipe 7134 is connected with the second cylinder. When the wire clamping end of the first clip block 711 is driven to move by two cylinders simultaneously, the cylinders and the air pipes are all arranged inside the fixed block 713, so that the volume of the clip assembly 71 becomes smaller, which is convenient for the design of the moving track of the clip assembly 71 in the wire winding spot welding device. The first air inlet 7142 is arranged on the side wall of the connecting block 72 away from the wire clamping end of the first clip block. Two air pipes are arranged in the connecting block 72, and the two air pipes are respectively communicated with the first air pipes 7134 in the two clip assemblies 71.

[0059] In this embodiment, the second clip block 712 includes a wire clamping plate 7121 and a fixing plate 7122, and the wire clamping plate 7121 and the fixing plate 7122 are integrally formed and connected. The width of the fixing plate 7122 is equal to the width of the side wall of the fixed block 713 provided with the first clip block 711. The width of the wire clamping plate 7121 is smaller than the width of the fixing plate 7122. The width of the wire clamping plate 7121 of the second clip block 712 is equal to the width of the wire clamping end of the first clip block 711. Two protruding blocks 7135 are provided on the side wall of the fixed block 713 facing the second clip block 712. The limiting groove 7131 is arranged between the two protruding blocks 7135. The middle part of the fixing plate 7122 of the second clip block 712 is arranged between the two protruding blocks 7135. The arrangement of the two protruding blocks 7135 positions the installation of the first clip block 711.

[0060] A first inclined surface 7111 is provided on the side wall of the first clamping block 711 facing the second clamping block 712. The first inclined surface 7111 inclines away from the second clamping block 712. A second inclined surface 7123 is provided on the side wall of the second clamping block 712 facing the second clamping block 712. The second inclined surface 7123 inclines away from the first clamping block 711. The first inclined surface 7111 and the second inclined surface 7123 are arranged oppositely. The arrangement of the first inclined surface 7111 and the second inclined surface 7123 forms a notch 715 with a larger width between the first clamping block 711 and the second clamping block 712. The notch 715 can be used to guide the wire entering between the first clamping block 711 and the second clamping block 712.

[0061] In this embodiment, the second clamping blocks 712 in the two clamping assemblies 71 are arranged close to each other. The wire clamping driving assembly 73 drives the connecting block 72 to move, driving the two clamping assemblies 71 to rotate simultaneously. The second clamping blocks 712 in the two clamping assemblies 71 are arranged close to each other to adapt to the distance between the two wire nozzles 51 in the wire winding spot welding device. And the two second clamping blocks 712 are arranged close to each other, which can reduce the distance between the two wires and ensure the effect of wire winding.

[0062] A second air pipe 7136 is arranged in the fixing block 713. The air outlet 7137 of the second air pipe 7136 is communicated with the limiting groove 7131, and the air outlet 7137 of the second air pipe 7136 is located between the first clamping block 711 and the second clamping block 712. The second air pipe 7136 is used to blow away the wire heads remaining between the first clamping block 711 and the second clamping block 712, avoiding the remaining wire heads sticking in the clamping assembly 71. Since the number of the clamping assemblies 71 is two, a second air connection port 721 is arranged on the connecting block 72. The air inlet pipe 721 in the connecting block 72 is connected to the two second air pipes 7136 at the same time, so that the air inlet pipe 721 can control the second air pipes 7136 to blow away the residual wires in the clamping assembly 71 at the same time, realizing synchronism.

[0063] The wire clamping driving assembly 73 includes a first linear cylinder 731, a mounting block 732 and a second linear cylinder 733. The first linear cylinder 731 is arranged on the mounting block 732. The second linear cylinder 733 drives the mounting block 732 to move. The first linear cylinder 731 drives the clamping assembly 71 to move. The driving direction of the first linear cylinder 731 is perpendicular to the driving direction of the second linear cylinder 733. The wire clamping driving assembly 73 realizes the movement of the clamping assembly 71 along two different directions only through two linear cylinders, and the structure is simple.

[0064] Before the clip component 71 clamps the wire, the clip driving component 714 drives the wire clamping end of the first clip block 711 to move away from the second clip block 712, causing the wire clamping end of the first clip block 711 to deviate relative to the fixed end of the first clip block 711, and the wire clamping end of the first clip block 711 stores energy. After the wire enters between the first clip block 711 and the second clip block 712, under the elastic force of the wire clamping end of the first clip block 711, the wire clamping end of the first clip block 711 moves towards the second clip block 712, and the clamping force between the first clip block 711 and the second clip block 712 is increased to clamp the thinner wire, thereby ensuring the stability of the thinner wire.

[0065] The spot welding component 6 is arranged on the second fixing frame 41. In the vertical direction, the spot welding component 6 is arranged above the fixed shaft component 4, and the wire clamping component 7 and the spot welding component 6 are arranged oppositely. Refer to Figure 12 and Figure 13, the spot welding assembly 6 includes a spot welding head 61 and a spot welding moving assembly 62. The spot welding moving assembly 62 drives the spot welding head 61 to move towards or away from the main shaft assembly 2. The spot welding assembly 6 is arranged above the fixed shaft assembly 4. The spot welding moving assembly 62 includes an X-direction spot welding moving assembly, a Y-direction spot welding moving assembly, and a Z-direction spot welding moving assembly. Among them, the X-direction spot welding moving assembly, the Y-direction spot welding moving assembly, and the Z-direction spot welding moving assembly drive the spot welding head to move in the XYZ directions respectively. The X-direction spot welding moving assembly includes a seventh fixing bracket 621, a fifth rotating motor 622, and a fourth lead screw 623. The X-direction spot welding moving assembly is arranged on the second fixing bracket 41, and the Y-direction spot welding moving assembly and the Z-direction spot welding moving assembly are arranged on the seventh fixing bracket 621. The fourth lead screw 623 passes through the through hole 6211 on the seventh fixing bracket 621. The fifth rotating motor 622 drives the fourth lead screw 623 to rotate through a transmission belt 624, driving the seventh fixing bracket 621 to move. The Y-direction spot welding moving assembly includes an eighth fixing bracket 625, a sixth rotating motor 626, and a fifth lead screw 627. The Z-direction spot welding moving assembly is arranged on the eighth fixing bracket 625. The fifth lead screw 627 passes through the eighth fixing bracket 625. The sixth rotating motor 626 drives the fifth lead screw 627 to rotate through a transmission belt 6261, driving the eighth fixing bracket 625 to move. The Z-direction spot welding moving assembly includes a spot welding driving device 628, a first moving bracket 629, a third fixing bracket 6210, a second compression spring 6211, a second moving bracket 6212, a fourth fixing bracket 6213, and a third compression spring 6214. The spot welding driving device 628 drives the first moving bracket 629 to move. The spot welding head 61 is arranged on the first moving bracket 629. The second compression spring 6211 abuts between the third fixing bracket 6210 and the spot welding head 61. The first moving bracket 629 moves on the second moving bracket 6212. The spot welding driving device 628 is arranged on the fourth fixing bracket 6213. The third compression spring 6214 abuts between the fourth fixing bracket 6213 and the second moving bracket 6212. The spot welding driving device 628 drives the first moving bracket 629 to move, driving the spot welding head 61 to move. The second compression spring 6211 can buffer the driving force of the spot welding driving device 628. The second compression spring 6211 between the first moving bracket 629 and the fourth fixing bracket 6213 can enable the spot welding driving device 628 and the first moving bracket 629 on the second moving bracket 6212 to maintain a better connection.

[0066] In this embodiment, the spot welding head 61 includes two heating blocks 611. Two electrode rods 612 respectively extend from the two heating blocks 611. The two electrode rods 612 are connected to form a spot welding end face 613.

[0067] The wire winding spot welding device includes a cutting tool assembly 63. The cutting tool assembly 63 is arranged on the second fixing bracket 41. The cutting tool assembly 63 can also be arranged on the eighth fixing bracket 625. See Figure 14, the cutter assembly 63 includes a cutter 631, a cutter movement driving assembly, and a ninth fixing bracket 632. The ninth fixing bracket 631 can be arranged on the second fixing bracket 41 or the eighth fixing bracket 625, and the cutter movement driving assembly is arranged on the ninth mounting bracket 632. The cutter movement driving assembly drives the cutter 631 to move in the vertical direction. The cutter movement driving assembly includes a cylinder 633, a connecting plate 634, and a mounting block 635. The mounting block 635 is connected to the cutter 631 and the connecting plate 634 respectively, and the cylinder 633 is fixed on the ninth fixing bracket 632; the connecting plate 634 is arranged between the mounting block 635 and the cylinder 633. The cylinder 633 drives the connecting plate 634 to move, driving the movement of the mounting block 635, so as to realize the movement of the cutter 631.

[0068] A grinding block assembly 64 is arranged on the second fixing bracket 41. See Figure 15 , the grinding block assembly 64 includes a grinding stone 641 and a grinding stone mounting bracket 642. The grinding stone mounting bracket 642 is arranged on the second fixing bracket 41, and the grinding stone 641 is arranged on the grinding stone mounting bracket 642. A grinding flat end face 6411 is arranged on the grinding stone 641. The grinding flat end face 6411 extends in the horizontal direction, and the spot welding head 61 is adjacent to the grinding flat end face 6411. The setting of the grinding block assembly 64 is used to adjust the flatness of the spot welding end face 613 of the spot welding head 61, and at the same time, it can also remove the substances that may remain on the spot welding end face 613. The grinding stone 641 can be immovable or movable. If the grinding stone 641 moves, a grinding stone driving assembly can be arranged on the grinding stone mounting block 642. The grinding stone driving assembly includes a driving device, a moving block 643, and a compression spring 644. The driving device drives the moving block 643 to move. The moving block 643 is connected to the grinding stone 641, and the compression spring 644 abuts between the grinding stone 641 and the grinding stone mounting bracket 642. The setting of the compression spring 644 buffers the driving force of the driving device.

[0069] The wire pressing assembly 8 is used to press the coil on the coil, facilitating the spot welding assembly 6 to weld the wire head of the wire on the skeleton. See Figure 16 , the wire pressing assembly 8 includes a pressing block 81, a connecting bar 82, and a wire pressing driving assembly 83. The pressing block 81 is located between the moving shaft assembly 3 and the fixed shaft assembly 4. The pressing block 81 is arranged on the connecting bar 82, and the wire pressing driving assembly 83 drives the connecting bar 82 to move towards the winding position, driving the movement of the pressing block 81. After the main shaft assembly 2 finishes winding, the wire pressing driving assembly 83 drives the pressing block 81 to move towards the winding position. After the pressing block 81 presses the coil, the spot welding head 61 starts spot welding. Spot welding is carried out after wire pressing, so that the wire head and wire tail of the wire are more accurately welded on the skeleton, better ensuring the welding area of the wire on the skeleton, avoiding problems such as too large welding area resulting in too large error and too small welding area resulting in insecure welding. In this embodiment, see Figure 17, on the side wall of the briquetting block 81 facing the moving shaft assembly 3 and the side wall facing the fixed shaft assembly 4, avoiding grooves 811 are respectively provided. A right-angle portion 812 is provided on the avoiding groove 811, and the right-angle portion 812 is arranged close to the winding position. The setting of the avoiding groove 811 enables the briquetting block 81 to fit the shape of the skeleton. The right-angle portion 812 on the avoiding groove 811 allows the wire to extend along the right-angle portion 812, and the welding effect of the wire head outside the briquetting block 81 is better. The wire pressing driving assembly 83 drives the briquetting block 81 to move in the XYZ direction. A bending portion 821 is provided in the middle of the connecting bar 82, and the setting of the bending portion 821 enables the briquetting block 81 to face the mounting table 10.

[0070] The blanking assembly 9 is used to remove the wound coil from the winding position. Refer to Figure 18 , the blanking assembly 9 includes an inclined chute 91, a blanking driving assembly 92 and a collection chute 93. The inclined chute 91 is inclined based on the vertical direction. The blanking driving assembly 92 drives the inclined chute 91 to move away from or towards the winding position. The collection chute 93 is located below the inclined chute 91, and the outlet of the inclined chute 91 is located inside the collection chute 93. After the coil completes spot welding, the blanking driving assembly 92 drives the inclined chute 91 to move towards the winding position. The coil drops into the inclined chute 91 and slides down along the inclined chute 91 into the collection box 93, completing the blanking of the coil. This blanking assembly 9 has a simple structure, occupies a small area, and can quickly achieve blanking.

[0071] The feeding assembly 1 moves the skeleton to the winding position between the moving shaft assembly 3 and the fixed shaft assembly 4. The moving shaft driving assembly drives the moving shaft 32 to move towards the fixed shaft assembly 4. The two ends of the skeleton are respectively located in the first positioning groove 321 and the second positioning groove 421. The moving shaft 32 and the fixed shaft 42 clamp the skeleton. The wire passes through the wire nozzle 51 and is clamped by the clip assembly 71. The wire nozzle 51 drives the wire to move to the winding position to start winding. After winding is completed, the spot welding driving assembly 62 drives the spot welding head 61 to weld the wire on the skeleton, and then blanking can be completed after spot welding; by clamping the skeleton with the moving shaft 32 and the fixed shaft 42 simultaneously, the skeleton with a smaller volume is more stable compared to being fixed by a single shaft. The spot welding assembly 6 or the winding assembly 5 and the moving shaft assembly 3 or the fixed shaft assembly 4 are respectively arranged in pairs on the first fixing frame 31 or the second fixing frame 41, making the layout of the device components more reasonable.

[0072] Finally, it should be emphasized that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Miniaturized wire clamping assembly, Characterized in that: It includes a clip assembly and a wire clamping drive assembly, and the wire clamping drive assembly drives the clip assembly to move; The clip assembly includes a first clip block, a second clip block, a fixed block and a clip block drive assembly. The first clip block includes a fixed end and a wire clamping end. The fixed end of the first clip block and the second clip block are fixedly arranged on the fixed block. The clip block drive assembly drives the wire clamping end of the first clip block to move towards or away from the second clip block, and the wire clamping end of the first clip block moves elastically; A limiting groove is arranged on the side wall of the fixed block. The first clip block is arranged in the limiting groove. The second clip block covers the limiting groove. The clip block drive assembly passes through the fixed block to drive the wire clamping end of the first clip block to move. The first clip block is arranged between the second clip block and the clip block drive assembly; The clip block drive assembly includes a first air cylinder and a first air inlet. A first installation groove and a first ventilation pipe are arranged in the fixed block. The first installation groove is communicated with the limiting groove. The first air cylinder is arranged in the first installation groove. The first ventilation pipe is respectively connected with the first air inlet and the first air cylinder. The first air cylinder drives the wire clamping end of the first clip block to move; A second ventilation pipe is arranged in the fixed block. The air outlet of the second ventilation pipe is located between the first clip block and the second clip block.

2. The miniaturized wire clamping assembly according to claim 1, Characterized in that: The clip block drive assembly includes a second air cylinder. A second installation groove is arranged on the fixed block. The second installation groove is communicated with the limiting groove. The second air cylinder is arranged in the second installation groove. The first ventilation pipe is connected with the second air cylinder. The second air cylinder drives the wire clamping end of the first clip block to move; The first installation groove and the second installation groove are arranged collinearly along the extending direction of the limiting groove.

3. The miniaturized wire clamping assembly according to claim 1, Characterized in that: The wire clamping assembly includes two of the clip assemblies and a connecting block. The two clip assemblies are arranged on the connecting block. The wire clamping drive assembly drives the connecting block to move. The second clip blocks in the two clip assemblies are arranged close to each other.

4. The miniaturized wire clamping assembly according to claim 1, Characterized in that: A first inclined surface is arranged on the side wall of the first clip block facing the second clip block. The first inclined surface is inclined away from the second clip block. A second inclined surface is arranged on the side wall of the second clip block facing the first clip block. The second inclined surface is inclined away from the first clip block. The first inclined surface and the second inclined surface are arranged opposite to each other.

5. The miniaturized wire clamping assembly according to claim 1, Characterized in that: The number of the clip assemblies is two. The second ventilation pipes in the two clip assemblies are simultaneously connected to an air inlet pipe.

6. The miniaturized wire clamping assembly according to any one of claims 1 to 5, Characterized in that: The wire clamping drive assembly includes a first linear cylinder, a mounting block, and a second linear cylinder. The first linear cylinder is disposed on the mounting block. The second linear cylinder drives the mounting block to move, and the first linear cylinder drives the clip assembly to move. The driving direction of the first linear cylinder is perpendicular to the driving direction of the second linear cylinder.

7. The wire winding spot welding device, characterized in that: it includes the miniaturized wire clamping assembly according to any one of claims 1 to 6.

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