A winding device for a transformer core

Abstract

The application discloses a kind of winding devices of transformer core, belong to the technical field of core winding, including the inner clamping mechanism for clamping and fixed iron core and main frame, main frame is provided with the feeding mechanism for sending out and cutting copper wire and the traction mechanism for the traction of copper wire;The inner clamping mechanism of the application is linked by inner slide column, outer clamping rod and compression spring, in combination with the cooperation of clamping cylinder and contact piece, automatic holding and locking of iron core are realized, and the stability of equipment is improved;The traction mechanism of the application can accurately grasp the end of copper wire through multi-axis cooperation, and automatically complete the whole process from insertion through the hole, temporary fastening by internal wire clamp, to winding end from the hole leading out, without manual intervention, improve threading efficiency and precision, avoid the problems such as uneven winding, loose and other problems caused by end loose in traditional way.

Description

Technical Field

[0001] This invention relates to the field of core winding technology, and in particular to a winding device for transformer cores. Background Technology

[0002] As the core equipment for power transmission and conversion, the manufacturing quality of the transformer core directly affects the transformer's energy efficiency and performance. During the core production process, copper wire is often wound around its exterior or in specific locations. Traditional core winding operations mostly rely on manual labor or semi-automated equipment, which presents the following main problems.

[0003] Iron cores typically have an annular cross-section and require stable clamping during winding to prevent displacement. Existing clamps are mostly unidirectional or rigid structures, making it difficult to accommodate iron cores of different sizes. Furthermore, centrifugal force or vibration during rotation can cause the clamps to loosen, affecting winding accuracy. The iron core surface often has holes for copper wires to pass through. Manual wire threading is cumbersome, requires a high level of operator skill, and makes it difficult to ensure that the copper wire end is accurately guided into the hole and temporarily fixed. This can easily lead to loosening in the early stages of winding, resulting in uneven winding. Existing equipment often lacks a coordinated mechanism for automatic copper wire feeding, tension control, and precise guidance. Copper wire position adjustment during winding relies on manual or simple mechanical pushing, making it difficult to achieve multi-layer uniform wire arrangement. This can easily produce gaps or overlaps, affecting the tightness and consistency of the winding. The multiple processes, from iron core clamping, wire threading, winding to cutting and threading out, are usually carried out in segments. The equipment integration is low, requiring multiple manual interventions, resulting in low production efficiency. Moreover, manual operation can easily introduce quality fluctuations. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention discloses a winding device capable of automatically clamping the iron core, precisely pulling and threading the copper wire, continuously and stably feeding and cutting the wire, and achieving fully automated and coordinated operation. The technical solution adopted by this invention is as follows: a winding device for a transformer iron core, comprising an inner clamping mechanism for clamping and fixing the iron core and a main frame, wherein the iron core is provided with an upper through hole and a lower through hole, and the main frame is provided with a feeding mechanism for feeding and cutting the copper wire and a pulling mechanism for pulling the copper wire;

[0005] The inner clamping mechanism includes a rotating clamp, on which two positioning plates are fixedly installed. An inner sliding column is slidably installed inside the rotating clamp, and two end rods are fixedly installed at the ends of the inner sliding column. Two outer clamping rods are rotatably installed on the rotating clamp, and the inner sides of the outer clamping rods are rotatably installed with the end rods.

[0006] Furthermore, the inner clamping mechanism also includes a motor base fixedly mounted on a rotating clamping frame, on which two wire clamps are rotatably mounted. The wire clamps are provided with teeth and mesh with each other. A wire clamping motor is fixedly mounted on the motor base, and a wire clamping gear is fixedly mounted on the motor shaft of the wire clamping motor. The wire clamping gear meshes with one of the wire clamps.

[0007] Furthermore, the inner clamping mechanism also includes a raised ring fixedly installed on the inner sliding column, a compression spring is provided between the raised ring and the motor base, the inner sliding column slides in the motor base, a contact piece is fixedly installed at the end of the inner sliding column, a clamping frame is fixedly installed on the main frame, a clamping electric cylinder is fixedly installed on the clamping frame, and a ball is rotatably installed on the output end of the clamping electric cylinder, the ball is in contact with the contact piece.

[0008] Furthermore, the inner clamping mechanism also includes a vertical rotating frame fixedly installed on the clamping frame, a sleeve fixedly installed on the rotating clamping frame, a rotating bevel gear fixedly installed on the sleeve, a rotating motor fixedly installed on the vertical rotating frame clamping frame, an output bevel gear fixedly installed on the motor shaft of the rotating motor, and the output bevel gear meshing with the rotating bevel gear.

[0009] When in use, the iron core is placed on the outside of the rotating clamp. At this time, the outer clamping rod is in the retracted state and will not block the iron core from being inserted. After the iron core is inserted, its end contacts the positioning plate. Then the clamping electric cylinder extends, and the ball pushes the contact plate, inner sliding column, protruding ring and end rod to move. The compression spring is compressed, and the end rod drives the two outer clamping rods to rotate, so that the outer clamping rods press the outer end of the iron core, thereby achieving the clamping and fixing of the iron core.

[0010] The rotating motor drives the output bevel gear to rotate, which in turn drives the rotating bevel gear, sleeve, and rotating clamp to rotate, thereby causing the clamped iron core to rotate as well. When the rotating clamp rotates, it drives the contact piece to rotate as well. When the contact piece rotates, the outer surface of the contact piece is always in contact with the ball, and the rolling of the ball along the outer surface of the contact piece prevents the compression spring from rebounding, thus keeping the two outer clamping rods clamping the iron core.

[0011] Furthermore, the feeding mechanism includes a traversing seat, on which two wire-passing posts are fixedly installed. Each wire-passing post has a wire-passing hole for copper wires to pass through, and the wire-passing holes on the two wire-passing posts are aligned. A cutting electric cylinder is fixedly installed on the wire-passing post, and a cutter is fixedly installed on the output end of the cutting electric cylinder. The cutter slides between the two wire-passing posts.

[0012] In use, the end of the copper wire is pulled out, and the drum motor drives the drum to rotate, so that the end of the copper wire passes through the through holes on the two threading posts. Then, the traction mechanism inserts the end of the copper wire from the inside to the outside into the lower insertion hole on the iron core. The drum motor then drives the drum to rotate, feeding out the copper wire. At the same time, the traverse motor rotates, driving the traverse screw to rotate, causing the traverse seat to slide along the cross column. The copper wire is guided through the through holes of the threading posts and wound around the outside of the iron core, with a total of two layers.

[0013] After use, the new end of the copper wire is inserted into the through hole of the wire threading post by the traction mechanism. Then the drum motor rotates, driving the drum to rotate and completely pass the end of the copper wire through the two through holes, ready for the next use.

[0014] Furthermore, the traction mechanism includes inner and outer slides, on which a lifting electric cylinder is fixedly installed. A rotating sleeve is fixedly installed on the output end of the lifting electric cylinder, and a lifting cylinder is fixedly installed on the rotating sleeve. A vertical sliding groove is provided on the inner and outer slides, and a side guide column is fixedly installed on the lifting cylinder. The side guide column slides in the vertical sliding groove. A rotating sleeve is rotatably installed below the lifting cylinder. An inner rotating motor is fixedly installed inside the lifting cylinder. The rotating sleeve is fixedly installed on the motor shaft of the inner rotating motor. A gripper electric cylinder is fixedly installed inside the rotating sleeve. A movable gripper is fixedly installed on the extended end of the gripper electric cylinder, and a fixed gripper is fixedly installed at the lower end of the rotating sleeve.

[0015] Furthermore, the traction mechanism also includes a fixed frame fixedly installed on the main frame, a movable motor fixedly installed on the fixed frame, a movable lead screw rotatably installed on the fixed frame, the movable lead screw being fixedly installed with the motor shaft of the movable motor, a movable frame slidably installed on the fixed frame, the movable frame and the movable lead screw forming a threaded transmission, inner and outer electric cylinders fixedly installed on the movable frame, inner and outer slide seats slidably installed in the movable frame, and the inner and outer slide seats being fixedly installed with the output ends of the inner and outer electric cylinders.

[0016] The rotation of the moving motor drives the moving lead screw to rotate, and the rotation of the moving lead screw drives the moving frame and inner and outer slides to slide along the fixed frame. The extension and retraction of the inner and outer electric cylinders can drive the inner and outer slides to slide along the moving frame. The extension and retraction of the lifting electric cylinder can drive the lifting cylinder and side guide column to rise and fall along the vertical slide groove. The rotation of the inner rotating motor drives the rotating sleeve to rotate relative to the lifting cylinder. The extension and retraction of the gripper electric cylinder can drive the movable gripper to move.

[0017] After the iron core is clamped and fixed, the moving frame first slides along the fixed frame, and the inner and outer slide blocks slide along the moving frame, so that the movable jaws and fixed jaws reach both sides of the end of the copper wire. Then, the jaw cylinder retracts, driving the movable jaws to move towards the fixed jaws, clamping the end of the copper wire through the movable and fixed jaws. At this time, the copper wire extends a certain length beyond the fixed and movable jaws, moving the copper wire to the inside of the iron core. Then, the moving frame slides along the fixed frame, moving the end of the copper wire above the iron core through the fixed and movable jaws. Then, the inner rotating motor drives the rotating sleeve to rotate relative to the lifting cylinder, from... The copper wire end is rotated 90 degrees by the movable and fixed clamps. Then, the lifting cylinder extends and retracts, raising and lowering the lifting cylinder so that the copper wire end is aligned with the lower insertion hole. Then, the inner and outer cylinders extend, causing the inner and outer slides to slide along the moving frame. The copper wire end is inserted into the lower insertion hole from the inside out by the fixed and movable clamps. At this time, the end of the copper wire reaches between the two wire clamps. Then, the wire clamping motor drives the wire clamping gear to rotate, causing the two wire clamps to rotate inward. The wire clamps hold the end of the copper wire to prevent it from loosening when the copper wire is wound around the iron core later.

[0018] Then, the gripper cylinder extends, causing the movable and fixed grippers to no longer hold the copper wire. Then, the lifting cylinder retracts, driving the lifting cylinder and rotating sleeve to rise. Then, the rotating clamp drives the iron core to rotate, and the drum motor drives the drum to rotate, feeding out the copper wire. In conjunction with the rotation of the traverse motor, the traverse screw rotates, causing the traverse seat to slide along the horizontal column. The copper wire is guided through the through hole of the wire threading post, and the copper wire is wound around the outside of the iron core, with a total of two layers.

[0019] After winding is complete, the movable and fixed clamps move to the threading post and clamp the copper wire. The cutting cylinder extends, causing the cutter to rise and cut the copper wire. At this time, the movable and fixed clamps, with the ends of the copper wire, move to the upper through-hole. Then, the fixed and movable clamps, with the ends of the copper wire, rotate 90 degrees, inserting the ends of the copper wire from the inside to the outside into the upper through-hole. Then, the clamping motor drives the clamping gear to rotate, causing the clamping clamp to rotate outward, so that the clamping clamp no longer clamps the copper wire. Then, the clamping cylinder retracts, the compressed spring rebounds, and the end rod drives the two outer clamping rods to rotate inward, so that the outer clamping rods no longer clamp the iron core. At this time, the wound iron core is removed.

[0020] Furthermore, the feeding mechanism also includes a movable rail fixedly installed on the main frame, a traverse motor fixedly installed on the movable rail, two horizontal columns fixedly installed on the movable rail, a traverse seat slidably installed on the horizontal columns, a traverse screw rotatably installed on the movable rail, the traverse screw being fixedly installed with the motor shaft of the traverse motor, and the traverse seat and the traverse screw forming a threaded transmission.

[0021] Furthermore, the feeding mechanism also includes a winch seat fixedly installed on the main frame, a drum rotatably mounted on the winch seat, a drum motor fixedly mounted on the winch seat, the drum and the motor shaft of the drum motor being fixedly installed, and copper wire being wound around the outside of the drum.

[0022] The beneficial effects of this invention compared with the prior art are: (1) The internal clamping mechanism of this invention achieves automatic clamping and locking of the iron core through the linkage of the inner sliding column, the outer clamping rod and the compression spring, combined with the cooperation of the clamping electric cylinder and the contact plate. During the rotation, the clamping force is kept in place and the iron core is ensured to be free from displacement during the winding process, thus improving the stability of the equipment; (2) The traction mechanism of this invention can accurately grab the end of the copper wire through multi-axis coordination and automatically complete the insertion from the insertion hole, temporary fastening by the wire clamp inside, and exiting after winding. The entire process of drawing out the hole does not require manual intervention, which improves the efficiency and accuracy of threading and avoids problems such as uneven winding and loosening caused by loosening of the end in the traditional method; (3) The feeding mechanism set in this invention integrates the functions of feeding out, guiding and cutting copper wires. With the traction mechanism and the rotation of the iron core, the copper wires can be automatically wound in two layers on the surface of the iron core. The horizontal motor drives the threading column to move at a uniform speed to ensure that the copper wires are evenly distributed on the surface of the iron core. The drum motor can control the wire release. The coordinated action with the traction mechanism effectively maintains the appropriate tension of the copper wires during the winding process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the core structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the internal clamping mechanism of the present invention. Figure 1 .

[0026] Figure 4 This is a schematic diagram of the internal clamping mechanism of the present invention. Figure 2 .

[0027] Figure 5 This is a schematic diagram of the internal clamping mechanism of the present invention. Figure 3 .

[0028] Figure 6 This is a schematic diagram of the internal clamping mechanism of the present invention. Figure 4 .

[0029] Figure 7 This is a schematic diagram of the feeding mechanism of the present invention. Figure 1 .

[0030] Figure 8 This is a schematic diagram of the feeding mechanism of the present invention. Figure 2 .

[0031] Figure 9 This is a schematic diagram of the traction mechanism structure of the present invention. Figure 1 .

[0032] Figure 10 This is a schematic diagram of the traction mechanism structure of the present invention. Figure 2 .

[0033] Reference numerals: 101-Main frame; 102-Clamping frame; 103-Vertical rotating frame; 104-Rotating motor; 105-Clamping electric cylinder; 106-Rotating clamp; 107-Rotating bevel gear; 108-Contact piece; 109-Inner sliding column; 110-Sleeve; 111-Motor base; 112-Raised ring; 113-Compression spring; 114-End rod; 115-Outer clamping rod; 116-Wire clamping motor; 117-Wire clamping gear; 118-Wire clamp; 119-Ball bearing; 120-Output bevel gear; 121-Positioning plate; 201-Winch base; 202-Drum; 203-Drum motor; 204-Moving track; 2 05-Horizontal column; 206-Horizontal motor; 207-Horizontal lead screw; 208-Horizontal seat; 209-Cutting electric cylinder; 210-Cutter; 211-Wire threading post; 301-Fixed frame; 302-Moving lead screw; 303-Moving motor; 304-Moving frame; 305-Inner and outer electric cylinders; 306-Inner and outer slides; 307-Lifting electric cylinder; 308-Swivel sleeve; 309-Vertical slide groove; 310-Lifting cylinder; 311-Side guide column; 312-Inner rotating motor; 313-Rotating sleeve; 314-Fixed gripper; 315-Gripper electric cylinder; 316-Movable gripper; 4-Iron core; 5-Copper wire; 6-Upper through hole; 7-Lower through hole. Detailed Implementation

[0034] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0035] Example: Reference Figures 1-10 A winding device for a transformer core includes an inner clamping mechanism for clamping and fixing the core 4 and a main frame 101. The core 4 is provided with an upper through hole 6 and a lower through hole 7. The main frame 101 is provided with a feeding mechanism for feeding out and cutting copper wire 5 and a traction mechanism for pulling copper wire 5.

[0036] The inner clamping mechanism includes a rotating clamp 106, on which two positioning plates 121 are fixedly installed. An inner sliding column 109 is slidably installed inside the rotating clamp 106. Two end rods 114 are fixedly installed at the ends of the inner sliding column 109. Two outer clamping rods 115 are rotatably installed on the rotating clamp 106. The inner side of the outer clamping rods 115 is rotatably installed with the end rods 114.

[0037] like Figures 3-6As shown, the inner clamping mechanism also includes a motor base 111 fixedly mounted on the rotating clamp 106. Two wire clamps 118 are rotatably mounted on the motor base 111. The wire clamps 118 are provided with teeth and mesh with each other. A wire clamping motor 116 is fixedly mounted on the motor base 111. A wire clamping gear 117 is fixedly mounted on the motor shaft of the wire clamping motor 116 and meshes with one of the wire clamps 118.

[0038] like Figures 3-6 As shown, the inner clamping mechanism also includes a raised ring 112 fixedly installed on the inner sliding column 109. A compression spring 113 is provided between the raised ring 112 and the motor base 111. The inner sliding column 109 slides in the motor base 111. A contact piece 108 is fixedly installed at the end of the inner sliding column 109. A clamping frame 102 is fixedly installed on the main frame 101. A clamping electric cylinder 105 is fixedly installed on the clamping frame 102. A ball bearing 119 is rotatably installed on the output end of the clamping electric cylinder 105. The ball bearing 119 is in contact with the contact piece 108.

[0039] like Figures 3-6 As shown, the inner clamping mechanism also includes a vertical rotating frame 103 fixedly installed on the clamping frame 102, a sleeve 110 fixedly installed on the rotating clamping frame 106, a rotating bevel gear 107 fixedly installed on the sleeve 110, a rotating motor 104 fixedly installed on the vertical rotating frame clamping frame 102, an output bevel gear 120 fixedly installed on the motor shaft of the rotating motor 104, and the output bevel gear 120 meshes with the rotating bevel gear 107.

[0040] In use, the iron core 4 is placed on the outside of the rotating clamp 106. At this time, the outer clamping rod 115 is in the retracted state and will not block the iron core 4 from being inserted. After the iron core 4 is inserted, its end contacts the positioning plate 121. Then the clamping electric cylinder 105 extends and pushes the contact piece 108, inner sliding column 109, protruding ring 112 and end rod 114 to move through the ball 119. The compression spring 113 is compressed and the end rod 114 drives the two outer clamping rods 115 to rotate, so that the outer clamping rods 115 press the outer end of the iron core 4, thereby achieving the clamping and fixing of the iron core 4.

[0041] The rotating motor 104 drives the output bevel gear 120 to rotate, which in turn drives the rotating bevel gear 107, the sleeve 110, and the rotating clamp 106 to rotate, thereby causing the clamped iron core 4 to rotate together. When the rotating clamp 106 rotates, it will drive the contact piece 108 to rotate together. When the contact piece 108 rotates, the outer surface of the contact piece 108 is always in contact with the ball 119. The rolling of the ball 119 along the outer surface of the contact piece 108 prevents the compression spring 113 from rebounding, thus keeping the two outer clamping rods 115 in a clamping state on the iron core 4.

[0042] like Figure 7 , Figure 8As shown, the feeding mechanism includes a traverse base 208, on which two wire-passing posts 211 are fixedly installed. The wire-passing posts 211 are provided with wire-passing holes for copper wires 5 to pass through, and the wire-passing holes on the two wire-passing posts 211 are aligned. A cutting electric cylinder 209 is fixedly installed on the wire-passing post 211, and a cutter 210 is fixedly installed on the output end of the cutting electric cylinder 209. The cutter 210 slides between the two wire-passing posts 211.

[0043] like Figure 7 , Figure 8 As shown, the feeding mechanism also includes a moving track 204 fixedly installed on the main frame 101. A traverse motor 206 is fixedly installed on the moving track 204. Two horizontal columns 205 are fixedly installed on the moving track 204. A traverse seat 208 is slidably installed on the horizontal columns 205. A traverse screw 207 is rotatably installed on the moving track 204. The traverse screw 207 is fixedly installed with the motor shaft of the traverse motor 206. The traverse seat 208 and the traverse screw 207 form a threaded transmission.

[0044] like Figure 7 , Figure 8 As shown, the feeding mechanism also includes a winch seat 201 fixedly installed on the main frame 101. A drum 202 is rotatably installed on the winch seat 201. A drum motor 203 is fixedly installed on the winch seat 201. The drum 202 is fixedly installed with the motor shaft of the drum motor 203. Copper wire 5 is wound around the outside of the drum 202.

[0045] In use, the end of the copper wire 5 is pulled out, and the drum motor 203 drives the drum 202 to rotate, so that the end of the copper wire 5 passes through the through holes on the two threading posts 211. Then, the traction mechanism inserts the end of the copper wire 5 from the inside to the outside into the lower insertion hole 7 on the iron core 4. Then, the drum motor 203 drives the drum 202 to rotate, sending out the copper wire 5. With the rotation of the iron core 4, the traverse motor 206 rotates, driving the traverse screw 207 to rotate, causing the traverse seat 208 to slide along the cross post 205. The copper wire 5 is guided through the through holes of the threading posts 211, and the copper wire 5 is wound around the outside of the iron core 4, with a total of two layers.

[0046] After use, the new end of the copper wire 5 is inserted into the through hole of the threading post 211 by the traction mechanism. Then the drum motor 203 rotates, driving the drum 202 to rotate, so that the end of the copper wire 5 is completely passed through the two through holes, ready for the next use.

[0047] like Figure 9 , Figure 10As shown, the traction mechanism includes inner and outer slides 306, a lifting cylinder 307 is fixedly installed on the inner and outer slides 306, a rotating sleeve 308 is fixedly installed on the output end of the lifting cylinder 307, a lifting cylinder 310 is fixedly installed on the rotating sleeve 308, a vertical sliding groove 309 is provided on the inner and outer slides 306, a side guide post 311 is fixedly installed on the lifting cylinder 310, the side guide post 311 slides in the vertical sliding groove 309, a rotating sleeve 313 is rotatably installed below the lifting cylinder 310, an inner rotating motor 312 is fixedly installed inside the lifting cylinder 310, the rotating sleeve 313 is fixedly installed with the motor shaft of the inner rotating motor 312, a gripper cylinder 315 is fixedly installed inside the rotating sleeve 313, a movable gripper 316 is fixedly installed on the extended end of the gripper cylinder 315, and a fixed gripper 314 is fixedly installed at the lower end of the rotating sleeve 313.

[0048] like Figure 9 , Figure 10 As shown, the traction mechanism also includes a fixed frame 301 fixedly installed on the main frame 101. A movable motor 303 is fixedly installed on the fixed frame 301. A movable lead screw 302 is rotatably installed on the fixed frame 301. The movable lead screw 302 is fixedly installed with the motor shaft of the movable motor 303. A movable frame 304 is slidably installed on the fixed frame 301. The movable frame 304 and the movable lead screw 302 form a threaded transmission. An inner and outer electric cylinder 305 is fixedly installed on the movable frame 304. Inner and outer slide blocks 306 are slidably installed in the movable frame 304. The inner and outer slide blocks 306 are fixedly installed with the output ends of the inner and outer electric cylinders 305.

[0049] The rotation of the moving motor 303 drives the moving lead screw 302 to rotate. The rotation of the moving lead screw 302 drives the moving frame 304 and the inner and outer slide blocks 306 to slide along the fixed frame 301. The extension and retraction of the inner and outer electric cylinders 305 can drive the inner and outer slide blocks 306 to slide along the moving frame 304. The extension and retraction of the lifting electric cylinder 307 can drive the lifting cylinder 310 and the side guide column 311 to rise and fall along the vertical slide groove 309. The rotation of the inner rotating motor 312 drives the rotating sleeve 313 to rotate relative to the lifting cylinder 310. The extension and retraction of the gripper electric cylinder 315 can drive the movable gripper 316 to move.

[0050] After the iron core 4 is clamped and fixed, the movable frame 304 first slides along the fixed frame 301, and the inner and outer slide blocks 306 slide along the movable frame 304, so that the movable jaw 316 and the fixed jaw 314 reach both ends of the copper wire 5. Then, the jaw cylinder 315 retracts, driving the movable jaw 316 to move towards the fixed jaw 314, clamping the end of the copper wire 5 through the movable jaw 316 and the fixed jaw 314. At this time, the copper wire 5 extends a certain length beyond the fixed jaw 314 and the movable jaw 316, so that the copper wire 5 moves to the inside of the iron core 4. Then, the movable frame 304 slides along the fixed frame 301, and the fixed jaw 314 and the movable jaw 316 move the end of the copper wire 5 to the top of the iron core 4. Then, the inner rotating motor 312 drives the rotating sleeve 313 relative to the lifting mechanism. The cylinder 310 rotates, thereby causing the end of the copper wire 5 to rotate 90 degrees through the movable jaw 316 and the fixed jaw 314. Then, the lifting cylinder 307 extends and retracts, causing the lifting cylinder 310 to rise and fall, so that the end of the copper wire 5 is aligned with the lower insertion hole 7. Then, the inner and outer cylinders 305 extend, causing the inner and outer slides 306 to slide along the moving frame 304. Through the fixed jaw 314 and the movable jaw 316, the end of the copper wire 5 is inserted into the lower insertion hole 7 from the inside out. At this time, the end of the copper wire 5 reaches between the two wire clamps 118. Then, the wire clamping motor 116 drives the wire clamping gear 117 to rotate, causing the two wire clamps 118 to rotate inward. The wire clamps 118 clamp the end of the copper wire 5 to prevent the copper wire 5 from loosening when it is subsequently wound around the iron core 4.

[0051] Subsequently, the gripper cylinder 315 extends, causing the movable gripper 316 and the fixed gripper 314 to no longer hold the copper wire 5. Then, the lifting cylinder 307 retracts, driving the lifting cylinder 310 and the rotating sleeve 313 to rise. Then, the rotating clamp 106 drives the iron core 4 to rotate, and the drum motor 203 drives the drum 202 to rotate, sending out the copper wire 5. In conjunction with the rotation of the traverse motor 206, the traverse screw 207 rotates, causing the traverse seat 208 to slide along the cross column 205. The copper wire 5 is guided through the through hole of the wire threading post 211, and the copper wire 5 is wound around the outside of the iron core 4, with a total of two layers.

[0052] After winding is complete, the movable jaw 316 and the fixed jaw 314 move to the side of the threading post 211, clamping the copper wire 5. The cutting cylinder 209 extends, causing the cutter 210 to rise and cut the copper wire 5. At this time, the movable jaw 316 and the fixed jaw 314, carrying the end of the copper wire 5, move to the side of the upper through hole 6. Then, the fixed jaw 314 and the movable jaw 316, carrying the end of the copper wire 5, move to the side of the upper through hole 6. The part is rotated 90 degrees, and the end of the copper wire 5 is inserted into the upper through hole 6 from the inside to the outside. Then the wire clamping motor 116 drives the wire clamping gear 117 to rotate, which drives the wire clamp 118 to rotate outward, so that the wire clamp 118 no longer clamps the copper wire 5. Then the clamping electric cylinder 105 retracts, the compression spring 113 rebounds, and drives the two outer clamping rods 115 to rotate inward through the end rod 114. The outer clamping rods 115 no longer clamp the iron core 4. At this time, the wound iron core 4 is removed.

[0053] Working principle: When in use, the iron core 4 is placed on the outside of the rotating clamp 106. At this time, the outer clamping rod 115 is in the retracted state and will not block the iron core 4 from being inserted. After the iron core 4 is inserted, its end contacts the positioning plate 121. Then the clamping electric cylinder 105 extends and pushes the contact piece 108, inner sliding column 109, protruding ring 112 and end rod 114 to move through the ball 119. The compression spring 113 is compressed and the end rod 114 drives the two outer clamping rods 115 to rotate, so that the outer clamping rods 115 press the outer end of the iron core 4, thereby achieving the clamping and fixing of the iron core 4. The rotating motor 104 drives the output bevel gear 120 to rotate, which in turn drives the rotating bevel gear 107, the sleeve 110, and the rotating clamp 106 to rotate, thereby causing the clamped iron core 4 to rotate together. When the rotating clamp 106 rotates, it will drive the contact piece 108 to rotate together. When the contact piece 108 rotates, the outer surface of the contact piece 108 is always in contact with the ball 119. The rolling of the ball 119 along the outer surface of the contact piece 108 prevents the compression spring 113 from rebounding, thus keeping the two outer clamping rods 115 in a clamping state on the iron core 4.

[0054] The rotation of the moving motor 303 drives the moving lead screw 302 to rotate. The rotation of the moving lead screw 302 drives the moving frame 304 and the inner and outer slide blocks 306 to slide along the fixed frame 301. The extension and retraction of the inner and outer electric cylinders 305 can drive the inner and outer slide blocks 306 to slide along the moving frame 304. The extension and retraction of the lifting electric cylinder 307 can drive the lifting cylinder 310 and the side guide column 311 to rise and fall along the vertical slide groove 309. The rotation of the inner rotating motor 312 drives the rotating sleeve 313 to rotate relative to the lifting cylinder 310. The extension and retraction of the gripper electric cylinder 315 can drive the movable gripper 316 to move.

[0055] After the iron core 4 is clamped and fixed, the movable frame 304 first slides along the fixed frame 301, and the inner and outer slide blocks 306 slide along the movable frame 304, so that the movable jaw 316 and the fixed jaw 314 reach both ends of the copper wire 5. Then, the jaw cylinder 315 retracts, driving the movable jaw 316 to move towards the fixed jaw 314, clamping the end of the copper wire 5 through the movable jaw 316 and the fixed jaw 314. At this time, the copper wire 5 extends a certain length beyond the fixed jaw 314 and the movable jaw 316, so that the copper wire 5 moves to the inside of the iron core 4. Then, the movable frame 304 slides along the fixed frame 301, and the fixed jaw 314 and the movable jaw 316 move the end of the copper wire 5 to the top of the iron core 4. Then, the inner rotating motor 312 drives the rotating sleeve 313 relative to the lifting mechanism. The cylinder 310 rotates, thereby causing the end of the copper wire 5 to rotate 90 degrees through the movable jaw 316 and the fixed jaw 314. Then, the lifting cylinder 307 extends and retracts, causing the lifting cylinder 310 to rise and fall, so that the end of the copper wire 5 is aligned with the lower insertion hole 7. Then, the inner and outer cylinders 305 extend, causing the inner and outer slides 306 to slide along the moving frame 304. Through the fixed jaw 314 and the movable jaw 316, the end of the copper wire 5 is inserted into the lower insertion hole 7 from the inside out. At this time, the end of the copper wire 5 reaches between the two wire clamps 118. Then, the wire clamping motor 116 drives the wire clamping gear 117 to rotate, causing the two wire clamps 118 to rotate inward. The wire clamps 118 clamp the end of the copper wire 5 to prevent the copper wire 5 from loosening when it is subsequently wound around the iron core 4.

[0056] Subsequently, the gripper cylinder 315 extends, causing the movable gripper 316 and the fixed gripper 314 to no longer hold the copper wire 5. Then, the lifting cylinder 307 retracts, driving the lifting cylinder 310 and the rotating sleeve 313 to rise. Then, the rotating clamp 106 drives the iron core 4 to rotate, and the drum motor 203 drives the drum 202 to rotate, sending out the copper wire 5. In conjunction with the rotation of the traverse motor 206, the traverse screw 207 rotates, causing the traverse seat 208 to slide along the cross column 205. The copper wire 5 is guided through the through hole of the wire threading post 211, and the copper wire 5 is wound around the outside of the iron core 4, with a total of two layers. After winding is complete, the movable jaw 316 and the fixed jaw 314 move to the side of the threading post 211, clamping the copper wire 5. The cutting cylinder 209 extends, causing the cutter 210 to rise and cut the copper wire 5. At this time, the movable jaw 316 and the fixed jaw 314, carrying the end of the copper wire 5, move to the side of the upper through hole 6. Then, the fixed jaw 314 and the movable jaw 316, carrying the end of the copper wire 5, move to the side of the upper through hole 6. The part is rotated 90 degrees, and the end of the copper wire 5 is inserted into the upper through hole 6 from the inside to the outside. Then the wire clamping motor 116 drives the wire clamping gear 117 to rotate, which drives the wire clamp 118 to rotate outward, so that the wire clamp 118 no longer clamps the copper wire 5. Then the clamping electric cylinder 105 retracts, the compression spring 113 rebounds, and drives the two outer clamping rods 115 to rotate inward through the end rod 114. The outer clamping rods 115 no longer clamp the iron core 4. At this time, the wound iron core 4 is removed.

[0057] After use, the copper wire 5 is moved to the side of the drum 202 by the fixed clamp 314 and the movable clamp 316. The new end of the copper wire 5 is clamped by the fixed clamp 314 and the movable clamp 316. Then the end of the copper wire 5 is inserted into the through hole of the threading post 211. After that, the fixed clamp 314 and the movable clamp 316 no longer clamp the copper wire 5, but only guide the copper wire 5. Then the drum motor 203 rotates, driving the drum 202 to rotate, so that the end of the copper wire 5 is completely passed through the two through holes, ready for the next use.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A winding device of a transformer core, comprising an inner clamping mechanism and a main frame (101) for clamping and fixing the core (4), the core (4) being provided with an upper through-out hole (6) and a lower through-in hole (7), characterized in that: The main frame body (101) is provided with a feeding mechanism for feeding and cutting the copper wire (5) and a traction mechanism for pulling the copper wire (5); The inner clamping mechanism comprises a rotating clamping frame (106), a positioning plate (121) fixedly installed on the rotating clamping frame (106), an inner slide column (109) slidably installed in the rotating clamping frame (106), an end rod (114) fixedly installed at the end of the inner slide column (109), and two outer clamping rods (115) rotatably installed on the rotating clamping frame (106), the inner side of the outer clamping rod (115) being rotatably installed with the end rod (114); The inner clamping mechanism further comprises a motor seat (111) fixedly installed on the rotating clamping frame (106), two wire clamping clamps (118) rotatably installed on the motor seat (111), teeth provided on the wire clamping clamp (118), the two wire clamping clamps (118) being meshed with each other, a wire clamping motor (116) fixedly installed on the motor seat (111), a wire clamping gear (117) fixedly installed on the motor shaft of the wire clamping motor (116), and the wire clamping gear (117) being meshed with one wire clamping clamp (118); The inner clamping mechanism further comprises a protruding ring (112) fixedly installed on the inner slide column (109), a compression spring (113) provided between the protruding ring (112) and the motor seat (111), the inner slide column (109) sliding in the motor seat (111), a contact sheet (108) fixedly installed at the end of the inner slide column (109), a clamping frame (102) fixedly installed on the main frame body (101), a clamping cylinder (105) fixedly installed on the clamping frame (102), a ball (119) rotatably installed on the output end of the clamping cylinder (105), and the ball (119) being attached to the contact sheet (108); The inner clamping mechanism further comprises a vertical rotating frame (103) fixedly installed on the clamping frame (102), a sleeve (110) fixedly installed on the rotating clamping frame (106), a rotating bevel gear (107) fixedly installed on the sleeve (110), a rotating motor (104) fixedly installed on the vertical rotating frame clamping frame (102), an output bevel gear (120) fixedly installed on the motor shaft of the rotating motor (104), and the output bevel gear (120) being meshed with the rotating bevel gear (107).

2. A winding device for transformer cores according to claim 1, characterized in that: The feeding mechanism comprises a traversing seat (208), two wire passing columns (211) fixedly installed on the traversing seat (208), wire passing through holes provided on the wire passing column (211) for the copper wire (5) to pass through, the wire passing through holes on the two wire passing columns (211) being aligned, a cutting cylinder (209) fixedly installed on the wire passing column (211), a cutter (210) fixedly installed on the output end of the cutting cylinder (209), and the cutter (210) sliding between the two wire passing columns (211).

3. A winding device for transformer cores according to claim 1, characterized in that: The traction mechanism comprises inner and outer slides (306), the inner and outer slides (306) are fixedly installed with lifting electric cylinders (307), the output ends of the lifting electric cylinders (307) are fixedly installed with rotating sleeves (308), the rotating sleeves (308) are fixedly installed with lifting barrels (310), the inner and outer slides (306) are provided with vertical sliding grooves (309), the lifting barrels (310) are fixedly installed with side guide columns (311), the side guide columns (311) slide in the vertical sliding grooves (309), the lifting barrels (310) are rotatably installed with rotating sleeves (313) below, the lifting barrels (310) are fixedly installed with inner rotating motors (312) inside, the rotating sleeves (313) are fixedly installed with the motor shafts of the inner rotating motors (312), the rotating sleeves (313) are fixedly installed with clamping jaw electric cylinders (315) inside, the extending ends of the clamping jaw electric cylinders (315) are fixedly installed with movable clamping jaws (316), the lower ends of the rotating sleeves (313) are fixedly installed with fixed clamping jaws (314).

4. A winding device for transformer cores according to claim 3, characterized in that: The traction mechanism further comprises a fixed frame (301) fixedly installed on the main frame body (101), the fixed frame (301) is fixedly installed with a moving motor (303), the fixed frame (301) is rotatably installed with a moving screw rod (302), the moving screw rod (302) is fixedly installed with the motor shaft of the moving motor (303), the fixed frame (301) is slidably installed with a moving frame (304), the moving frame (304) is in threaded transmission with the moving screw rod (302), the moving frame (304) is fixedly installed with inner and outer electric cylinders (305), the inner and outer slides (306) are slidably installed in the moving frame (304), and the inner and outer slides (306) are fixedly installed with the output ends of the inner and outer electric cylinders (305).

5. A winding device for transformer cores according to claim 2, characterized in that: The feeding mechanism further comprises a moving rail (204) fixedly installed on the main frame body (101), the moving rail (204) is fixedly installed with a traversing motor (206), the moving rail (204) is fixedly installed with a horizontal column (205), a traversing seat (208) is slidably installed on the horizontal column (205), the moving rail (204) is rotatably installed with a traversing screw rod (207), the traversing screw rod (207) is fixedly installed with the motor shaft of the traversing motor (206), and the traversing seat (208) is in threaded transmission with the traversing screw rod (207).

6. A winding device for transformer cores according to claim 5, characterized in that: The feeding mechanism further comprises a winding seat (201) fixedly installed on the main frame body (101), the winding seat (201) is rotatably installed with a winding drum (202), the winding seat (201) is fixedly installed with a winding drum motor (203), the winding drum (202) is fixedly installed with the motor shaft of the winding drum motor (203), and the winding drum (202) is wound with copper wires (5).

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