Top-to-top wire-winding spot welding device

Abstract

The present invention provides a top-to-top type winding spot welding device, comprising a loading assembly, a main shaft assembly, a winding assembly, a spot welding assembly, a wire clamping assembly and a unloading assembly, wherein the loading assembly is used to move a skeleton to a winding location; the main shaft assembly comprises a moving shaft assembly and a fixed shaft assembly, the moving shaft assembly comprises a moving shaft and a moving shaft driving assembly, the fixed shaft assembly comprises a fixed shaft, the moving shaft driving assembly drives the moving shaft to move toward the winding location, the moving driving assembly drives the moving shaft to be colinear with the fixed shaft and to rotate synchronously in the same direction, a first positioning groove is arranged on the moving shaft, a second positioning groove is arranged on the fixed shaft, the first positioning groove is communicated with the second positioning groove, and the winding location is located between the first positioning groove and the second positioning groove; the winding assembly is used for wire guiding; the spot welding assembly is used for spot welding the wire; the clamping assembly is used for clamping the wire, and the unloading assembly is used for completing the winding coil and moving it away from the winding location. The above structure is adopted, compared with a skeleton with a small volume fixed by a single shaft, the stability is better.

Description

Technical Field

[0001] The invention relates to the field of coil processing equipment, in particular to a top-to-top type winding spot welding device. Background Art

[0002] Common-mode inductors are commonly used in switching power supplies to filter common-mode electromagnetic interference signals. Existing common-mode inductors have various shapes, including rectangular or circular, but most common-mode inductors are very small. For example, the length of a rectangular common-mode inductor skeleton is ≈1.3cm, the width is ≈0.8cm, and the height is ≈0.8cm. In the existing winding device, the skeleton is fixed by rotating the main shaft, and then the skeleton is driven to rotate to start winding. The rotating main shaft fixes the skeleton in different ways, including penetrating through holes on the skeleton or grasping the skeleton with multiple claws, but the size of the skeleton is too small, and it is difficult to fix the skeleton more firmly before winding. Summary of the invention

[0003] The main purpose of the present invention is to provide a top-to-top type wire-wound inductor device with a small frame that is firmly fixed.

[0004] In order to achieve the above-mentioned main purpose, the top-to-top winding spot welding device provided by the present invention includes: a loading assembly, a spindle assembly, a winding assembly, a spot welding assembly, a wire clamping assembly and a unloading assembly, the loading assembly is used to move the skeleton to the winding position; the spindle assembly includes a movable shaft assembly and a fixed shaft assembly, the movable shaft assembly includes a first fixed frame, a movable shaft and a movable shaft driving assembly, the movable shaft and the movable shaft driving assembly are arranged on the first fixed frame, the fixed shaft assembly includes a second fixed frame and a fixed shaft, the fixed shaft is arranged on the second fixed frame, the movable shaft driving assembly drives the movable shaft to move toward or away from the winding position, the movable driving assembly drives the movable shaft to be arranged colinearly with the fixed shaft and rotate synchronously in the same direction, the end of the movable shaft facing the fixed shaft is provided with a first positioning groove, and the fixed shaft is provided with a first positioning groove. A second positioning groove is provided at the end of the fixed axis toward the movable axis, the first positioning groove is connected to the second positioning groove, and the winding place is located between the first positioning groove and the second positioning groove; the winding assembly includes at least one wire nozzle and a wire nozzle moving assembly, and the wire nozzle moving assembly drives the wire nozzle to move toward or away from the spindle assembly; the spot welding assembly includes a spot welding head and a spot welding moving assembly, and the spot welding moving assembly drives the spot welding head to move toward or away from the spindle assembly, one of the winding assembly or the spot welding assembly is arranged on the first fixed frame, and the other of the wire assembly or the spot welding assembly is arranged on the second fixed frame; the wire clamping assembly includes a clamping assembly and a wire clamping drive assembly, the clamping assembly is used to clamp the wire, and the wire clamping drive assembly drives the clamping assembly to move; the unloading assembly is used to complete the coil of winding and move it away from the winding place.

[0005] It can be seen from the above scheme that the loading assembly moves the skeleton to the winding location between the movable shaft assembly and the fixed shaft assembly, the movable shaft driving assembly drives the movable shaft to move toward the fixed shaft assembly, the two ends of the skeleton are respectively located in the first positioning groove and the second positioning groove, the movable shaft and the fixed shaft clamp the skeleton, the wire is clamped by the clamp assembly after passing through the wire nozzle, the wire nozzle drives the wire to move to the winding location to start winding, after the winding is completed, the spot welding driving assembly drives the spot welding head to weld the wire on the skeleton, and the material can be unloaded after the spot welding is completed; the skeleton is clamped by the movable shaft and the fixed shaft at the same time, which is more stable than a skeleton with a small volume fixed by a single axis, and the spot welding assembly or the winding assembly is respectively arranged on the first fixed frame or the second fixed frame corresponding to the movable shaft assembly or the fixed shaft assembly, so that the layout of the device components is more reasonable, and the spot welding head and the wire nozzle have a more reasonable moving route.

[0006] A further solution is that the loading assembly includes a vibration plate, a lifting assembly and a loading conveying assembly, the vibration plate is provided with a linear track, the lifting assembly is arranged in the extension direction of the linear track, the lifting assembly includes a lifting block and a lifting drive assembly, the lifting block is provided with a loading position, the loading position is connected with the linear track, the lifting drive assembly drives the lifting block to move toward or away from the linear track, and the loading conveying assembly includes a suction nozzle, and the suction nozzle moves between the loading position and the spindle assembly.

[0007] It can be seen that the materials on the vibration plate are arranged in an orderly manner on the linear track and moved to the loading position. A skeleton is placed at one loading position. The ejection drive assembly drives the ejection block to move away from the linear track. The ejection block blocks the skeleton on the linear track from continuing to move, while making it easier for the suction nozzle to suck the skeleton tightly and move the skeleton to the winding position. For skeletons with small size, the skeleton can be transferred through the suction nozzle to make the skeleton more stable.

[0008] A further solution is that the moving axis driving assembly includes a translation driving assembly, the translation driving assembly includes a mounting frame, a first compression spring, a moving plate and a translation driving device, the moving axis rotates in the mounting frame, the first compression spring abuts between the mounting frame and the moving plate, and the translation driving device drives the moving plate to move.

[0009] It can be seen that since the movable shaft rotates in the mounting frame, the translation drive device drives the movable plate to move, driving the first compression spring and the mounting frame to move, thereby realizing the movement of the movable shaft. The first compression spring can buffer the driving force of the translation drive device, so that the movable shaft and the fixed shaft clamp the skeleton while avoiding the situation of damaging the skeleton.

[0010] A further solution is that the movable axis drive assembly includes a rotating axis drive assembly, the rotating axis drive assembly includes a rotation drive device, a rotating connecting rod and multiple transmission belts, the rotating connecting rod extends between the movable axis assembly and the fixed axis assembly, the rotation drive device is connected to one axial end of the rotating connecting rod through the transmission belt, and the movable axis and the fixed axis are connected to the two axial ends of the rotating connecting rod one by one through the transmission belt.

[0011] It can be seen that the rotating connecting rod is driven to rotate by the rotary driving device, which drives the movable shaft and the fixed shaft connected to the rotating connecting rod to rotate, thereby realizing the synchronous rotation of the movable shaft and the fixed shaft.

[0012] A further solution is that the spindle assembly includes a limit detection assembly, the limit detection assembly includes a first sensor, a second sensor, a first detection block and a second detection block, the first sensor and the second sensor are arranged side by side along a first direction, the first direction intersects with the moving direction of the moving axis, the first detection block and the second detection block are arranged on the moving plate, along the moving direction of the moving axis, the first sensor and the second sensor are respectively arranged between the first detection block and the second detection block, the first sensor and the second sensor are respectively provided with detection slots, the first detection block passes through the detection slot of the first sensor, and the second detection block passes through the detection slot of the second sensor.

[0013] It can be seen that the first sensor and the second sensor in the limit detection assembly are located between the first detection block and the second detection block. Along the moving direction of the moving axis, when the moving axis moves toward the fixed axis, the first detection block passes through the detection slot of the first sensor, and when the moving axis moves away from the fixed axis, the second detection block passes through the detection slot of the second sensor. The first detection block and the second detection block respectively detect the forward or backward movement of the moving axis to better control the displacement of the moving axis and better clamp the skeleton.

[0014] A further solution is that the winding assembly is arranged above the moving shaft assembly, and the length extension direction of the wire nozzle is perpendicular to the moving direction of the moving shaft; the winding assembly includes at least two wire nozzles and a wire nozzle mounting frame, the wire nozzle is arranged in the wire nozzle mounting frame, and the length extension directions of at least two wire nozzles are arranged in parallel, and the wire nozzle moving assembly includes a wire nozzle rotation drive assembly, and the wire nozzle rotation drive assembly drives the wire nozzle mounting frame to rotate.

[0015] It can be seen that wires are respectively passed through the two wire nozzles. When the wire nozzle rotation driving assembly drives the wire nozzle mounting frame to rotate, the two wire nozzles are driven to rotate simultaneously, so that the wires in the two wire nozzles are twisted, and the winding in the main shaft assembly is coordinated to realize the winding of the two wires in the coil. The twisted wire winding structure is simple and convenient.

[0016] A further solution is that the spot welding assembly is arranged above the fixed shaft assembly, and the spot welding mobile assembly includes a spot welding drive device, a first mobile frame, a third fixed frame, a second compression spring, a second mobile frame, a fourth fixed frame and a third compression spring, the spot welding drive device drives the first mobile frame to move, the spot welding head is arranged on the first mobile frame, and the second compression spring abuts between the third fixed frame and the spot welding head; the first mobile frame is arranged to move on the second mobile frame, the spot welding drive device is arranged on the fourth fixed frame, and the third compression spring abuts between the fourth fixed frame and the second mobile frame.

[0017] It can be seen that the spot welding drive device drives the first mobile frame to move, driving the spot welding head to move, the second compression spring can buffer the driving force of the spot welding drive device, and the second compression spring between the first mobile frame and the fourth fixed frame can better maintain the connection between the spot welding drive device and the first mobile frame on the second mobile frame.

[0018] A further solution is that the material discharge component includes an inclined chute, a material discharge drive component and a collecting trough. The inclined chute is tilted based on the vertical direction. The material discharge drive component drives the inclined chute to move away from or toward the winding position. The collecting trough is located below the inclined chute, and the outlet of the inclined chute is located in the collecting trough.

[0019] It can be seen that after the spot welding of the coil is completed, the unloading drive assembly drives the inclined chute to move toward the winding position, the coil falls into the inclined chute, and slides along the inclined chute into the collection box to complete the unloading of the coil. The unloading assembly has a simple structure, occupies a small area, and can quickly realize unloading.

[0020] A further solution is that the top-to-top wire winding spot welding device includes a wire pressing assembly, the wire pressing assembly includes a pressing block and a wire pressing drive assembly, the pressing block is located between the movable shaft assembly and the fixed shaft assembly, and the wire pressing drive assembly drives the pressing block to move toward the winding location.

[0021] It can be seen that when the spindle assembly completes the winding, the wire pressing drive assembly drives the pressing block to move toward the winding location. After the pressing block presses the coil, the spot welding head starts spot welding. Spot welding is then performed after the wire is pressed, so that the wire ends and wire tails can be more accurately welded to the skeleton, better ensuring the welding area of ​​the wire on the skeleton, avoiding problems such as excessive errors caused by excessive welding area and loose welding caused by too small welding area.

[0022] A further solution is that avoidance grooves are respectively provided on the side walls of the pressing block facing the movable shaft assembly and / or the side walls facing the fixed shaft assembly, and the avoidance grooves are provided with right-angled portions, which are provided close to the winding position.

[0023] It can be seen that the setting of the avoidance groove can make the pressing block fit the shape of the frame, and the right-angled part on the avoidance groove allows the wire to extend around the right-angled part, so that the welding effect of the wire end outside the pressing block is better. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0026] Figure 3 It is a structural diagram of the top material assembly in the embodiment of the top-to-top type 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 top-to-top winding spot welding device of the present invention.

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

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

[0031] Figure 8 It is a structural diagram of a clamp assembly in an embodiment of a top-to-top wire winding spot welding device of the present invention.

[0032] Fig. 9 It is a structural diagram of the clamp assembly at another angle in the embodiment of the top-to-top wire winding spot welding device of the present invention.

[0033] Fig.10 It is a cross-sectional view of two clamp assemblies in an embodiment of the top-to-top wire winding spot welding device of the present invention.

[0034] Fig.11 It is a structural diagram of a fixing block in a clamp assembly in an embodiment of a top-to-top wire winding spot welding device of the present invention.

[0035] Fig.12 It is a structural diagram of a spot welding assembly in an embodiment of a top-to-top wire winding spot welding device of the present invention.

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

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

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

[0039] Fig.16 It is a structural diagram of the wire pressing assembly in an embodiment of the top-to-top wire winding spot welding device of the present invention.

[0040] Fig.17 yes Fig.16 Enlarged view of point A.

[0041] Fig.18 It is a structural diagram of the unloading assembly in an embodiment of the top-to-top wire winding spot welding device of the present invention.

[0042] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0043] The top-to-top type wire spot welding device of the present invention is used to process the wire spot welding of the skeleton into an inductor coil, which can be used in a transformer. The top-to-top type wire spot welding device can process skeletons of different sizes, and is particularly suitable for the wire spot welding process of skeletons with smaller volumes. The skeleton is clamped relatively by the movable axis and the fixed axis, thereby improving the stability of the skeleton fixation.

[0044] See also Figure 1 The top-to-top 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 3The 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 drive assembly 122 includes a cylinder 1221, a compression spring 1222 and a mounting frame 1223. The cylinder 1222 is disposed on the mounting frame 1223. A limit plate 1224 is disposed on the mounting frame 1223. The compression spring 1222 abuts between the cylinder 1221 and the limit plate 1224. The cylinder 1221 drives the ejector block 121 to move, and the compression spring 1222 can buffer the driving force of the cylinder 1221.

[0047] See also Figure 4 and Figure 5 A winding place 20 is formed between the moving shaft assembly 3 and the fixed shaft assembly 4, and the skeleton starts to be wound at the winding place 20. The moving shaft assembly 3 includes a first fixed frame 31, a moving shaft 32 and a moving shaft driving assembly 33. The moving shaft 32 and the moving shaft driving assembly are arranged on the first fixed frame 31, and the moving shaft driving assembly drives the moving shaft 32 to move toward or away from the winding place 20 and the fixed shaft assembly 4.

[0048] The fixed shaft assembly 4 includes a second fixed frame 41 and a fixed shaft 42 . The fixed shaft 42 is disposed on the second fixed frame 41 . The movable shaft 32 and the fixed shaft 42 are colinearly disposed and rotate synchronously and in the same direction.

[0049] The end of the movable shaft 32 facing the fixed shaft 42 is provided with a first positioning groove 321, and the end of the fixed shaft 42 facing the movable shaft 32 is provided with a second positioning groove 421, the first positioning groove 321 is communicated with the second positioning groove 421, and the winding part 20 is located between the first positioning groove 321 and the second positioning groove 421. When the movable shaft 32 and the fixed shaft 42 clamp the skeleton, the two 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 there is enough space on the skeleton for winding, thereby improving the stability of the skeleton.

[0050] The moving shaft driving assembly 33 includes a translation driving assembly, which includes a mounting frame 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 in the mounting frame 331. The first compression spring 332 abuts between the mounting frame 331 and the moving plate 333. The translation driving device 334 drives the moving plate 333 to move. As the moving shaft 32 rotates in the mounting frame 331, the translation driving device 334 drives the moving plate 333 to move, driving the first compression spring 332 and the mounting frame 331 to move, thereby realizing the movement of the moving shaft 32. The first compression spring 332 can buffer the driving force of the translation driving device 334, so that the moving shaft 32 and the fixed shaft 42 can clamp the skeleton while avoiding the situation of clamping the skeleton.

[0051] The moving shaft driving assembly 33 includes a rotating shaft driving assembly, which includes a rotation driving device 335, a rotating connecting rod 336 and a plurality of transmission belts 337. The rotating connecting rod 336 extends between the moving shaft assembly 3 and the fixed shaft assembly 4. The rotation driving device is connected to one axial end of the rotating connecting rod 336 through the transmission belt 337. The moving shaft 32 and the fixed shaft 42 are connected to the two axial ends of the rotating connecting rod 336 through the transmission belt 337 in a one-to-one correspondence. The rotating connecting rod 336 is driven to rotate by the rotation driving device 335, so as to drive the moving shaft 32 and the fixed shaft 42 connected to the rotating connecting rod 336 to rotate, thereby realizing the synchronous rotation of the moving shaft 32 and the fixed shaft 42. In this embodiment, the axial ends of the fixed shaft 42, the moving shaft 32 and the rotating connecting rod 336 are respectively provided with saw teeth 338, and the saw teeth 338 extend along the axial direction of the components where they are located. The fixed shaft 42 is connected to the axial first end of the rotating connecting rod 336 through the transmission belt 337, and the movable shaft 32 is connected to the axial second end of the rotating connecting rod 336 through the transmission belt 337. The rotation driving device 335 is a servo motor, and the rotation driving device 335 is connected to the axial first end of the rotating connecting rod 336 through the transmission belt 337. Since the translation driving assembly drives the movable shaft 32 to move, the saw teeth 338 on the movable shaft 32 are provided with a sufficient length along the axial direction of the movable shaft 32, so that the movable shaft 32 remains connected to the transmission belt 337 after moving.

[0052] The spindle assembly 2 includes a limit detection assembly 21, which 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, 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, the first sensor 211 and the second sensor 212 are respectively provided with detection slots 215, the first detection block 213 passes through the detection slot 215 of the first sensor 211, and the second detection block 214 passes through the detection slot 215 of the second sensor 212. The first sensor 211 and the second sensor 212 in the limit detection assembly 21 are located between the first detection block 213 and the second detection block 214. Along the moving direction of the movable shaft 32, the first detection block 213 and the second detection block 214 are staggered so that when the movable shaft 32 moves toward the fixed shaft 42, the first detection block 213 passes through the detection slot 215 of the first sensor 211, and when the movable shaft 32 moves away from the fixed shaft 42, the second detection block 214 passes through the detection slot of the second sensor 212. The first detection block 213 and the second detection block 214 respectively detect the forward or backward movement of the movable shaft 32 to better control the displacement of the movable shaft 32 and better clamp the skeleton.

[0053] In this embodiment, the winding assembly 5 is arranged on the first fixing frame 31, and in the vertical direction, the winding assembly 5 is arranged above the moving shaft assembly 3. Figure 6 The winding assembly 5 includes at least one wire nozzle 51 and a wire nozzle moving assembly. The wire nozzle 51 extends in the vertical direction, and the wire nozzle moving assembly drives the wire nozzle 51 to move toward or away from the main shaft assembly 2. When there is only one wire nozzle 51, a wire is passed through the wire nozzle 51, and the skeleton rotates to start winding the single wire. When there are two wire nozzles 51, when one wire nozzle 51 corresponds to a wire passing through, when the wire nozzle moving assembly moves and drives the two wire nozzles 51 to rotate at the same time, since the moving shaft 32 and the fixed shaft 42 are arranged in the same line in the horizontal direction, the two wires begin to twist, and the skeleton rotates for winding. This type of twisted wire structure is simple and occupies little space, making it easier to lay out the device reasonably.

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

[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 7The 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 , Fig. 9 and Fig.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. Fig.11The fixing block 713 in one clamp assembly 71 is provided with a limiting groove 7131, a first mounting groove 7132 and a second mounting groove 7133 on the side wall facing the other clamp assembly 71. In the vertical direction, the first mounting groove 7132 and the second mounting groove 7133 are arranged in a colinear manner 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 is communicated with the first mounting groove 7132 and the second mounting groove 7133 respectively. The first clamp block 711 is arranged in the limiting groove 7131, and the fixed end of the first clamp block 711 is arranged below the second mounting groove. The second clamp block 712 covers the limiting groove 7131, the first clamp block 711 is arranged between the second clamp block 712 and the clamp block driving assembly 714, the clamping end of the first clamp block 711 moves in the limiting groove 7131, and the second clamp block 712 is arranged between the first clamp block 711 and another clamp assembly 71. The clamp block 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 installation groove 7132, and the second cylinder 7143 is arranged in the second installation groove 7133. A first ventilation pipe 7134 is arranged in the fixing block 713, and the first ventilation pipe 7134 is connected to the first air inlet 7142 and the first cylinder 7141 respectively. The first ventilation pipe 7134 is connected to the second cylinder. When the clamping end of the first clamp block 711 is driven to move by two cylinders at the same time, the cylinder and the vent pipe are both arranged inside the fixed block 713, so that the volume of the clamp assembly 71 becomes smaller, which is convenient for designing the moving track of the clamp assembly 71 in the winding spot welding device. The first air inlet 7142 is arranged on the side wall of the connecting block 72 away from the clamping end of the first clamp block, and two vent pipes are arranged in the connecting block 72, and the two vent pipes are respectively connected to the first vent pipes 7134 in the two clamp assemblies 71.

[0059] In this embodiment, the second clamping block 712 includes a clamping plate 7121 and a fixed plate 7122, and the clamping plate 7121 and the fixed plate 7122 are integrally formed and connected. The width of the fixed plate 7122 is equal to the width of the side wall of the fixed block 713 provided with the first clamping block 711, the width of the clamping plate 7121 is smaller than the width of the fixed plate 7122, and the width of the clamping plate 7121 of the second clamping block 712 is equal to the width of the clamping end of the first clamping block 711. Two protruding blocks 7135 are provided on the side wall of the fixed block 713 facing the second clamping block 712, the limiting groove 7131 is provided between the two protruding blocks 7135, and the middle part of the fixed plate 7122 of the second clamping block 712 is provided between the two protruding blocks 7135, and the provision of the two protruding blocks 7135 positions the installation of the first clamping 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, and the first inclined surface 7111 is inclined 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, and the second inclined surface 7123 is inclined away from the first clamping block 711. The first inclined surface 7111 and the second inclined surface 7123 are arranged opposite to each other. 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, and 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 clamping drive assembly 73 drives the connecting block 72 to move and drives 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 spacing 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 spacing between the two wires and ensure the effect of winding.

[0062] A second vent pipe 7136 is provided in the fixing block 713, and an air outlet 7137 of the second vent pipe 7136 is communicated with the limiting groove 7131, and the air outlet 7137 of the second vent pipe 7136 is located between the first clamp block 711 and the second clamp block 712. The second vent pipe 7136 is used to blow away the thread ends remaining between the first clamp block 711 and the second clamp block 712 to prevent the remaining thread ends from sticking to the clip assembly 71. Since there are two clip assemblies 71, a second air inlet 721 is provided on the connecting block 72, and the air inlet pipe 721 in the connecting block 72 is connected to the two second vent pipes 7136 at the same time, so that the air inlet pipe 721 simultaneously controls the second vent pipe 7136 to blow away the remaining wires in the clip assembly 71, thereby achieving synchronization.

[0063] The wire clamping drive assembly 73 includes a first linear cylinder 731, a mounting block 732 and a second linear cylinder 733. The first linear cylinder 731 is set on the mounting block 732, and the second linear cylinder 733 drives the mounting block 732 to move. The first linear cylinder 731 drives the clamp 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 drive assembly 73 only uses two linear cylinders to realize the movement of the clamp assembly 71 in two different directions, and the structure is simple.

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

[0065] The spot welding assembly 6 is arranged on the second fixing frame 41. In the vertical direction, the spot welding assembly 6 is arranged above the fixing shaft assembly 4. The wire clamping assembly 7 and the spot welding assembly 6 are arranged opposite to each other. Fig.12 and Fig.13, the spot welding assembly 6 includes a spot welding head 61 and a spot welding moving assembly 62, and the spot welding moving assembly 62 drives the spot welding head 61 to move toward or away from the spindle assembly 2. The spot welding assembly 6 is arranged above the fixed shaft assembly 4, and 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, wherein the X-direction spot welding moving assembly, the Y-direction spot welding moving assembly and the Z-direction spot welding moving assembly respectively drive the spot welding head to move in the XYZ direction. The X-direction spot welding moving assembly includes a seventh fixed frame 621, a fifth rotating motor 622 and a fourth screw rod 623, the X-direction spot welding moving assembly is arranged on the second fixed frame 41, and the Y-direction spot welding moving assembly and the Z-direction spot welding moving assembly are arranged on the seventh fixed frame 621. The fourth screw rod 623 passes through the through hole 6211 on the seventh fixed frame 621, and the fifth rotating motor 622 drives the fourth screw rod 623 to rotate through the transmission belt 624, thereby driving the seventh fixed frame 621 to move. The Y-direction spot welding moving assembly includes an eighth fixed frame 625, a sixth rotating motor 626 and a fifth screw rod 627. The Z-direction spot welding moving assembly is arranged on the eighth fixed frame 625. The fifth screw rod 627 runs through the eighth fixed frame 625. The sixth rotating motor 626 drives the fifth screw rod 627 to rotate through the transmission belt 6261, thereby driving the eighth fixed frame 625 to move. The Z-direction spot welding moving assembly includes a spot welding drive device 628, a first moving frame 629, a third fixed frame 6210, a second compression spring 6211, a second moving frame 6212, a fourth fixed frame 6213 and a third compression spring 6214. The spot welding drive device 628 drives the first moving frame 629 to move, the spot welding head 61 is arranged on the first moving frame 629, and the second compression spring 6211 abuts between the third fixed frame 6210 and the spot welding head 61; the first moving frame 629 is arranged on the second moving frame 6212 to move, the spot welding drive device 628 is arranged on the fourth fixed frame 6213, and the third compression spring 6214 abuts between the fourth fixed frame 6213 and the second moving frame 6212. The spot welding drive device 628 drives the first mobile frame 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 drive device 628. The second compression spring 6211 between the first mobile frame 629 and the fourth fixed frame 6213 can enable the spot welding drive device 628 to better maintain the connection with the first mobile frame 629 on the second mobile frame 6212.

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

[0067] The top-to-top wire spot welding device includes a cutter assembly 63, which is disposed on the second fixing frame 41. The cutter assembly 63 may also be disposed on the eighth fixing frame 625. Fig.14The cutter assembly 63 includes a cutter 631, a cutter moving drive assembly and a ninth fixed frame 632. The ninth fixed frame 631 can be set on the second fixed frame 41 or the eighth fixed frame 625. The cutter moving drive assembly is set on the ninth mounting frame 632. The cutter moving drive assembly drives the cutter 631 to move in the vertical direction. The cutter moving drive 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. The cylinder 633 is fixed on the ninth fixed frame 632; the connecting plate 634 is set 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, thereby realizing the movement of the cutter 631.

[0068] The second fixing frame 41 is provided with a grinding block assembly 64, see Fig.15 The grinding block assembly 64 includes a grinding stone block 641 and a grinding stone block mounting frame 642. The grinding stone block mounting frame 642 is arranged on the second fixing frame 41, and the grinding stone block 641 is arranged on the grinding stone block mounting frame 642. The grinding stone block 641 is provided with a flattened end surface 6411, and the flattened end surface 6411 extends in the horizontal direction. The spot welding head 61 is adjacent to the flattened end surface 6411. The setting of the grinding block assembly 64 is used to adjust the flatness of the spot welding end surface 613 of the spot welding head 61, and can also remove the substances that may remain on the spot welding end surface 613. The grinding stone block 641 may not move or may move. If the grinding stone block 641 moves, a grinding stone block driving assembly may be set on the grinding stone block mounting block 642. The grinding stone block 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 block 641. The compression spring 644 abuts between the grinding stone block 641 and the grinding stone block mounting frame 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, so that the spot welding assembly 6 can weld the wire ends of the wire to the frame. Fig.16 The wire pressing assembly 8 includes a pressing block 81, a connecting strip 82 and a wire pressing drive assembly 83. The pressing block 81 is located between the movable shaft assembly 3 and the fixed shaft assembly 4. The pressing block 81 is arranged on the connecting strip 82. The wire pressing drive assembly 83 drives the connecting strip 82 to move toward the winding location 20, thereby driving the pressing block 81 to move. When the spindle assembly 2 completes the winding, the wire pressing drive assembly 83 drives the pressing block 81 to move toward the winding location 20. After the pressing block 81 presses the coil, the spot welding head 61 starts spot welding. After the wire is pressed, spot welding is performed again, so that the wire ends and wire tails are more accurately welded to the skeleton, and the welding area of ​​the wire on the skeleton is better guaranteed, so as to avoid the problem of excessive errors due to excessive welding area and loose welding due to too small welding area. In this embodiment, refer to Fig.17, the side walls of the pressing block 81 facing the movable shaft assembly 3 and the side walls facing the fixed shaft assembly 4 are respectively provided with avoidance grooves 811, and the avoidance grooves 811 are provided with right angle portions 812, and the right angle portions 812 are provided near the winding part 20. The setting of the avoidance grooves 811 can make the pressing block 81 fit the shape of the skeleton, and the right angle portions 812 on the avoidance grooves 811 allow the wire to extend around the right angle portions 812, so that the welding effect of the wire ends outside the pressing block 81 is better. The wire pressing drive assembly 83 drives the pressing block 81 to move in the XYZ direction. A bending portion 821 is provided in the middle portion of the connecting strip 82, and the setting of the bending portion 821 enables the pressing block 81 to be set toward the mounting table 10.

[0070] The unloading assembly 9 is used to remove the completed coil from the winding place 20. Fig.18 The unloading assembly 9 includes an inclined chute 91, an unloading driving assembly 92 and a collecting trough 93. The inclined chute 91 is tilted based on the vertical direction. The unloading driving assembly 92 drives the inclined chute 91 to move away from or toward the winding position 20. The collecting trough 93 is located below the inclined chute 91, and the outlet of the inclined chute 91 is located in the collecting trough 93. When the coil is spot welded, the unloading driving assembly 92 drives the inclined chute 91 to move toward the winding position 20, and the coil falls into the inclined chute 91, slides along the inclined chute 91 into the collecting box 93, and the unloading of the coil is completed.

[0071] The loading component 1 moves the skeleton to the winding location 20 between the movable shaft component 3 and the fixed shaft component 4, and the movable shaft driving component drives the movable shaft 32 to move toward the fixed shaft component 4. The two ends of the skeleton are respectively located in the first positioning groove 321 and the second positioning groove 421, and the movable shaft 32 and the fixed shaft 42 clamp the skeleton. The wire is clamped by the clamp component 71 after passing through the wire nozzle 51. The wire nozzle 51 drives the wire to move to the winding location 20 to start winding. After the winding is completed, the spot welding driving component 62 drives the spot welding head 61 to weld the wire to the skeleton. After the spot welding is completed, the material can be unloaded; the skeleton is clamped by the movable shaft 32 and the fixed shaft 42 at the same time. Compared with a skeleton with a small volume fixed by a single axis, it is more stable. The spot welding component 6 or the winding component 5 is respectively arranged on the first fixed frame 31 or the second fixed frame 41 corresponding to the movable shaft component 3 or the fixed shaft component 4, so that the layout of the device components is more reasonable.

[0072] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Top-to-top wire-winding spot welding device, characterized in that: include: A loading assembly, the loading assembly is used to move the skeleton to the winding location; A spindle assembly, wherein the spindle assembly comprises a movable shaft assembly and a fixed shaft assembly, wherein the movable shaft assembly comprises a first fixed frame, a movable shaft and a movable shaft driving assembly, wherein the movable shaft and the movable shaft driving assembly are arranged on the first fixed frame, wherein the fixed shaft assembly comprises a second fixed frame and a fixed shaft, wherein the fixed shaft is arranged on the second fixed frame, wherein the movable shaft driving assembly drives the movable shaft to move toward or away from the winding location, wherein the movable shaft driving assembly drives the movable shaft to be arranged colinearly with the fixed shaft and to rotate synchronously in the same direction, wherein a first positioning groove is arranged at an end of the movable shaft facing the fixed shaft, and a second positioning groove is arranged at an end of the fixed shaft facing the movable shaft, wherein the first positioning groove is communicated with the second positioning groove, and wherein the winding location is located between the first positioning groove and the second positioning groove; A winding assembly, the winding assembly comprising at least one wire nozzle and a wire nozzle moving assembly, the wire nozzle moving assembly driving the wire nozzle to move toward or away from the spindle assembly; A spot welding assembly, the spot welding assembly comprising a spot welding head and a spot welding moving assembly, the spot welding moving assembly drives the spot welding head to move toward or away from the spindle assembly, one of the winding assembly or the spot welding assembly is arranged on a first fixed frame, and the other of the winding assembly or the spot welding assembly is arranged on the second fixed frame; A wire clamping assembly, the wire clamping assembly comprising a clamping assembly and a wire clamping drive assembly, the clamping assembly is used to clamp the wire, and the wire clamping drive assembly drives the clamping assembly to move; A blanking assembly, the blanking assembly is used to remove the completed coil from the winding location; The feeding assembly comprises a vibration plate, a feeding assembly and a feeding conveying assembly, the vibration plate is provided with a linear track, the feeding assembly is arranged in the extension direction of the linear track, the feeding assembly comprises a feeding block and a feeding driving assembly, the feeding block is provided with a loading position, the loading position is communicated with the linear track, the feeding driving assembly drives the feeding block to move toward or away from the linear track, the feeding conveying assembly comprises a suction nozzle, and the suction nozzle moves between the loading position and the spindle assembly; The moving axis driving assembly includes a translation driving assembly, and the translation driving assembly includes a mounting frame, a first compression spring, a moving plate and a translation driving device. The moving axis rotates in the mounting frame, the first compression spring abuts between the mounting frame and the moving plate, and the translation driving device drives the moving plate to move.

2. The top-to-top wire-winding spot welding device according to claim 1 is characterized in that: The movable axis driving assembly includes a rotating axis driving assembly, and the rotating axis driving assembly includes a rotation driving device, a rotating connecting rod and a plurality of transmission belts. The rotating connecting rod extends between the movable axis assembly and the fixed axis assembly, and the rotation driving device is connected to one axial end of the rotating connecting rod through the transmission belt. The movable axis and the fixed axis are connected to the two axial ends of the rotating connecting rod through the transmission belt in a one-to-one correspondence.

3. The top-to-top wire-winding spot welding device according to claim 1 is characterized in that: The spindle assembly includes a limit detection assembly, and the limit detection assembly includes a first sensor, a second sensor, a first detection block and a second detection block. The first sensor and the second sensor are arranged side by side along a first direction, and the first direction intersects with the moving direction of the moving axis. The first detection block and the second detection block are arranged on the moving plate. Along the moving direction of the moving axis, the first sensor and the second sensor are respectively arranged between the first detection block and the second detection block. The first sensor and the second sensor are respectively provided with detection slots, and the first detection block passes through the detection slot of the first sensor, and the second detection block passes through the detection slot of the second sensor.

4. The top-to-top wire-winding spot welding device according to claim 1, characterized in that: The winding assembly is arranged above the moving shaft assembly, and the length extension direction of the wire nozzle is perpendicular to the moving direction of the moving shaft; The winding assembly includes at least two wire nozzles and a wire nozzle mounting frame, the wire nozzle is arranged in the wire nozzle mounting frame, and the length extension directions of at least two of the wire nozzles are arranged in parallel. The wire nozzle moving assembly includes a wire nozzle rotation drive assembly, and the wire nozzle rotation drive assembly drives the wire nozzle mounting frame to rotate.

5. The top-to-top wire-winding spot welding device according to claim 1, characterized in that: The spot welding assembly is arranged above the fixed shaft assembly, the spot welding moving assembly comprises a spot welding driving device, a first moving frame, a third fixed frame, a second compression spring, a second moving frame, a fourth fixed frame and a third compression spring, the spot welding driving device drives the first moving frame to move, the spot welding head is arranged on the first moving frame, and the second compression spring abuts between the third fixed frame and the spot welding head; The first movable frame is arranged to move on the second movable frame, the spot welding driving device is arranged on the fourth fixed frame, and the third compression spring is abutted between the fourth fixed frame and the second movable frame.

6. The top-to-top wire-winding spot welding device according to claim 1, characterized in that: The unloading assembly includes an inclined chute, a unloading drive assembly and a collecting trough. The inclined chute is tilted based on the vertical direction. The unloading drive assembly drives the inclined chute to move away from or toward the winding location. The collecting trough is located below the inclined chute, and the outlet of the inclined chute is located in the collecting trough.

7. The top-to-top wire-winding spot welding device according to any one of claims 1 to 6, characterized in that: The top-to-top wire winding spot welding device includes a wire pressing assembly, which includes a pressing block and a wire pressing drive assembly. The pressing block is located between the movable shaft assembly and the fixed shaft assembly, and the wire pressing drive assembly drives the pressing block to move toward the winding location.

8. The top-to-top wire-winding spot welding device according to claim 7, characterized in that: The side wall of the pressing block facing the movable shaft assembly and / or the side wall facing the fixed shaft assembly are respectively provided with avoidance grooves, and the avoidance grooves are provided with right-angled portions, and the right-angled portions are provided close to the winding position.

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