Transformer coil winding equipment

Abstract

The present invention relates to the technical field of transformer production, and in particular to a transformer coil winding device, comprising a base, a winding mechanism and a pay-off mechanism; the winding mechanism is installed at one end of the base to wind the copper wire around the outside of the magnetic core; the pay-off mechanism is installed at the other end of the base to pay out the copper wire to the winding mechanism. The magnetic core of the present invention can translate the same distance along the axial direction after one rotation, so that the spacing of the copper wire in each circle is the same, which greatly improves the quality of the overall coil.

Description

Technical Field

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

[0002] Transformers are important equipment in power networks, mainly used for stepping up and down voltage. In the production process of transformers, coils need to be wound on the outside of the iron core. Traditional coil winding can only be used for winding cylindrical objects, and cannot achieve winding of annular iron cores. Moreover, the above winding process is mostly done manually, which has low work efficiency and high work intensity, and cannot meet the needs of mass production. In the prior art, there are many devices for automatically winding iron core coils.

[0003] For example, Chinese patent application number CN201920252561.9 discloses “a winding mechanism for a transformer coil, comprising a base, an XYZ transmission mechanism and a winding motor, wherein the XYZ transmission mechanism is mounted on the base, wherein: the XYZ transmission mechanism comprises an X-axis transmission device, a Y-axis transmission device and a Z-axis transmission device, the X-axis transmission device is mounted on the base, the Y-axis transmission device and the Z-axis transmission device are arranged above the X-axis transmission device, and the X-axis transmission device is in transmission connection with the Y-axis transmission device”;

[0004] This patent combines the "X-axis transmission device", "Y-axis transmission device" and "Z-axis transmission device" to enable the winding motor to drive the winding shaft to move back and forth in the horizontal direction, front-to-back direction and vertical direction to achieve winding on the iron core; however, the horizontal translation of the winding shaft determines the spacing between the copper wires wound on the iron core, and the moving speed of the "X-axis transmission device" must be highly coordinated with the rotation speed of the motor. Once the moving speed of the "X-axis transmission device" is too fast, the spacing between the copper wires on the iron core will become larger, which will affect the quality of the transformer coil. Summary of the invention

[0005] The purpose of the present invention is to solve the disadvantage of the prior art that the spacing between the copper wires of the iron core is difficult to control, and to propose a transformer coil winding device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A transformer coil winding device is designed, comprising a base, a winding mechanism and a pay-off mechanism; the winding mechanism is installed at one end of the base to wind the copper wire around the outside of the magnetic core; the pay-off mechanism is installed at the other end of the base to pay out the copper wire to the winding mechanism.

[0008] Preferably, the winding mechanism includes a screw, a guide rod, a movable seat, a first motor and a magnetic core mounting piece; the screw is rotatably mounted on the inner side of the base, the guide rod is fixedly mounted on the inner side of the base and is arranged parallel to the screw, one end of the bottom of the movable seat is threadedly connected to the screw, and the other end of the bottom of the movable seat is slidably connected to the guide rod, the first motor is fixedly mounted on the movable seat, and the magnetic core mounting piece is rotatably mounted on the movable seat and fixedly connected to the output shaft of the first motor.

[0009] Preferably, the magnetic core mounting component includes a first clamping plate, a mounting shaft, a connecting screw, a second clamping plate and a fastening nut; one end of the mounting shaft is fixedly connected to the first clamping plate, the other end of the mounting shaft is fixedly connected to the output shaft of the first motor, one end of the connecting screw is fixedly connected to the first clamping plate, the second clamping plate is sleeved on the connecting screw and is slidably connected to the connecting screw, and the fastening nut is threadedly installed on the connecting screw.

[0010] Preferably, the winding mechanism also includes a transmission member, which includes a gear, a connecting shaft, an incomplete gear, a first pulley and a second pulley; the gear is fixedly mounted on the end of the screw rod, the connecting shaft is rotatably mounted on the outer side of the movable seat, the incomplete gear is fixedly mounted on one end of the connecting shaft and intermittently meshed with the gear, the first pulley is fixedly mounted on the connecting shaft, and the second pulley is fixedly mounted on the output shaft of the first motor and meshed with the first pulley.

[0011] Preferably, the connecting shaft comprises a sleeve shaft, an insertion shaft and a clamping strip; the sleeve shaft is rotatably mounted on a movable seat, the clamping strip is fixedly mounted on the outside of the insertion shaft, the insertion shaft and the clamping strip are both inserted into the sleeve shaft and slidably connected to the sleeve shaft.

[0012] Preferably, a slot matching the clamping strip is provided on the inner side of the sleeve shaft, and the clamping strip can slide along the slot.

[0013] Preferably, the winding mechanism also includes a clamping member, which includes a mounting seat, a first pressure roller, a fixed plate and a tension spring; one end of the mounting seat is rotatably connected to the movable seat through a pin shaft, the first pressure roller is rotatably installed on the inner side of the mounting seat and can contact the magnetic core, the fixed plate is fixedly installed on the outer side of the movable seat, the bottom end of the tension spring is fixedly connected to the fixed plate, and the top end of the tension spring is fixedly connected to the mounting seat.

[0014] Preferably, the wire-paying mechanism includes a fixed seat, a wire-paying reel, a second motor and a tensioning member; the fixed seat is fixedly mounted on the base, and the wire-paying reel is rotatably mounted on the inner side of the fixed seat through a rotating shaft to pay out the copper wire; the second motor is fixedly mounted on the outer side of the fixed seat, and the output shaft is fixedly connected to the wire-paying reel, and the tensioning member is mounted on the outer side of the wire-paying reel to compress the copper wire.

[0015] Preferably, the tensioning member includes a ring, a rotating rod, a coil spring and a second pressure roller; the ring is sleeved on the rotating shaft of the pay-off reel and is rotatably connected to the pay-off reel, the coil spring is sleeved on the rotating shaft of the pay-off reel, one end of the coil spring is fixedly connected to a fixed seat, the other end of the coil spring is fixedly connected to the ring, one end of the rotating rod is fixedly connected to the ring, the other end of the rotating rod is rotatably connected to the second pressure roller, and the second pressure roller is in contact with the copper wire.

[0016] The transformer coil winding device proposed in the present invention has the beneficial effect that: after the output shaft of the first motor rotates one circle, the magnetic core mounting part can drive the magnetic core to rotate one circle, so that the magnetic core wraps the copper wire around one circle; then the incomplete gear is meshed with the gear, so that the lead screw rotates a certain angle, which makes the movable seat drive the magnetic core mounting part and the magnetic core to translate, so that the copper wire switches the winding position on the magnetic core and fits with the copper wire of the previous circle; in this cycle, the magnetic core can translate the same distance axially after rotating one circle, so that the spacing of the copper wire in each circle is the same, which greatly improves the quality of the overall coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a transformer coil winding device proposed by the present invention;

[0018] Figure 2 A schematic structural diagram of a winding mechanism of a transformer coil winding device proposed by the present invention;

[0019] Figure 3 A schematic structural diagram of a magnetic core mounting member of a transformer coil winding device proposed by the present invention;

[0020] Figure 4 A schematic diagram of the structure of a transmission component of a transformer coil winding device proposed by the present invention;

[0021] Figure 5 A schematic structural diagram of a connecting shaft of a transformer coil winding device proposed by the present invention;

[0022] Figure 6 A schematic structural diagram of a pressing member of a transformer coil winding device proposed by the present invention;

[0023] Figure 7 A schematic structural diagram of a wire-releasing mechanism of a transformer coil winding device proposed by the present invention;

[0024] Figure 8 This is a schematic structural diagram of a tensioning member of a transformer coil winding device proposed by the present invention.

[0025] In the figure: base 1, winding mechanism 2, screw 21, guide rod 22, movable seat 23, first motor 24, magnetic core mounting member 25, first clamping plate 251, mounting shaft 252, connecting screw 253, second clamping plate 254, fastening nut 255, transmission member 27, gear 271, connecting shaft 272, sleeve shaft 2721, plug shaft 2722, clamping strip 2723, clamping groove 2724, incomplete gear 273, first pulley 274, second pulley 275, clamping member 28, mounting seat 281, first pressure roller 282, fixing plate 283, tension spring 284, unwinding mechanism 3, fixing seat 31, unwinding reel 32, second motor 33, tensioning member 34, collar 341, rotating rod 342, coil spring 343, second pressure roller 344, magnetic core 4. Implementation

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0027] Reference Figure 1-5 A transformer coil winding device comprises a base 1, a winding mechanism 2 and a pay-off mechanism 3; the winding mechanism 2 is installed at one end of the base 1 to wind the copper wire around the outside of the magnetic core 4; the pay-off mechanism 3 is installed at the other end of the base 1 to pay out the copper wire to the winding mechanism 2.

[0028] The winding mechanism 2 includes a screw 21, a guide rod 22, a movable seat 23, a first motor 24, a core mounting member 25 and a transmission member 27; the screw 21 is rotatably mounted on the inner side of the base 1, the guide rod 22 is fixedly mounted on the inner side of the base 1 and is arranged parallel to the screw 21, one end of the bottom of the movable seat 23 is threadedly connected to the screw 21, and the other end of the bottom of the movable seat 23 is slidably connected to the guide rod 22, the first motor 24 is fixedly mounted on the movable seat 23, and the core mounting member 25 is rotatably mounted on the movable seat 23 and is fixedly connected to the output shaft of the first motor 24; the guide rod 22 can guide and limit the movable seat 23, and when the screw 21 rotates, the movable seat 23 rotates relative to the screw 21 under the restriction of the guide rod 22, which can make the movable seat 23 move along the axial direction of the guide rod 22, so that the core mounting member 25 drives the magnetic core to move horizontally, and then the copper wire can be wound in the axial direction of the magnetic core 4;

[0029] The magnetic core mounting member 25 includes a first clamping plate 251, a mounting shaft 252, a connecting screw 253, a second clamping plate 254 and a fastening nut 255; one end of the mounting shaft 252 is fixedly connected to the first clamping plate 251, the other end of the mounting shaft 252 is fixedly connected to the output shaft of the first motor 24, one end of the connecting screw 253 is fixedly connected to the first clamping plate 251, the second clamping plate 254 is sleeved on the connecting screw 253 and is slidably connected to the connecting screw 253, and the fastening nut 255 is threadedly installed on the connecting screw 253; when the magnetic core is mounted, the first clamping plate 251 is fixedly connected to the output shaft of the first motor 24, and the second clamping plate 254 is sleeved on the connecting screw 253 and is slidably connected to the connecting screw 253. The fastening nut 255 is threadedly installed on the connecting screw 253. 4, the magnetic core 4 is sleeved on the connecting screw 253 and one end of the magnetic core 4 is fitted with the first clamping plate 251, and then the second clamping plate 254 is sleeved on the connecting screw 253 and fitted with the other end of the magnetic core 4, and finally the second clamping plate 254 is fixed by threading the fastening nut 255 on the connecting screw 253, so that the magnetic core 4 is fixedly installed between the first clamping plate 251 and the second clamping plate 254, so that the magnetic core 4 keeps synchronous rotation with the first clamping plate 251 and the second clamping plate 254, so that the magnetic core 4 can be wound by self-rotation;

[0030] The mounting shaft 252 can be rotated by the first motor 24, so that the first clamping plate 251, the second clamping plate 254 and the magnetic core 4 can rotate synchronously. When the magnetic core 4 rotates, the copper wire released by the pay-off mechanism 3 can be reeled in, so that the copper wire can be wound around the outside of the magnetic core 4 to form a coil. The entire process realizes automatic winding without manual winding, which greatly reduces the amount of manual labor.

[0031] The transmission member 27 includes a gear 271, a connecting shaft 272, an incomplete gear 273, a first pulley 274, and a second pulley 275; the gear 271 is fixedly mounted on the end of the screw rod 21, the connecting shaft 272 is rotatably mounted on the outer side of the movable seat 23, the incomplete gear 273 is fixedly mounted on one end of the connecting shaft 272 and intermittently meshes with the gear 271, the first pulley 274 is fixedly mounted on the connecting shaft 272, and the second pulley 275 is fixedly mounted on the output shaft of the first motor 24 and meshes with the first pulley 274; the second pulley 275 can be rotated by the first motor 24, so that the first pulley 274 drives the connecting shaft 272 to rotate, and this belt transmission can make the rotation speed of the connecting shaft 272 the same as the rotation speed of the first motor 24, and then make the rotation speed of the incomplete gear 273 the same as the rotation speed of the first motor 24;

[0032] When the incomplete gear 273 is meshed with the gear 271, the gear 271 will rotate a certain angle; when the incomplete gear 273 is disengaged from the gear 271, the gear 271 stops rotating; when the incomplete gear 273 is meshed with the gear 271 again, the gear 271 will rotate the same angle again; in this cycle, the gear 271 can rotate periodically, which makes the screw rod 21 rotate periodically, so that the movable seat 23 translates periodically;

[0033] During the whole process, after the output shaft of the first motor 24 rotates one circle, the core mounting part 25 can drive the core 4 to rotate one circle, which means that the core 4 will wrap the copper wire around one circle; then the incomplete gear 273 engages with the gear 271, which makes the screw rod 21 rotate a certain angle, which makes the movable seat 23 drive the core mounting part 25 and the core 4 to translate, so that the copper wire switches the winding position on the core 4 and fits with the copper wire of the previous circle; in this way, the core 4 can translate axially by the same distance after rotating one circle, so that the spacing of the copper wire in each circle is the same, which greatly improves the quality of the overall coil.

[0034] The connecting shaft 272 includes a sleeve shaft 2721, an insert shaft 2722 and a clamping strip 2723; the sleeve shaft 2721 is rotatably mounted on the movable seat 23, and the clamping strip 2723 is fixedly mounted on the outer side of the insert shaft 2722. The insert shaft 2722 and the clamping strip 2723 are both inserted into the sleeve shaft 2721 and slidably connected with the sleeve shaft 2721; a clamping groove 2724 matching the clamping strip 2723 is opened on the inner side of the sleeve shaft 2721, and the clamping strip 2723 can be moved along the clamping groove 27 24 slides; during the movement of the movable seat 23, relative sliding will occur between the sleeve shaft 2721 and the plug shaft 2722, and the clamping strip 2723 can limit the plug shaft 2722 to avoid relative rotation between the plug shaft 2722 and the sleeve shaft 2721, so that the plug shaft 2722 and the sleeve shaft 2721 can always maintain synchronous rotation, and the movable seat 23 will not affect the matching relationship between the incomplete gear 273 and the gear 271 during the movement. Example

[0035] In Example 1, after the magnetic core 4 is wound with a circle of copper wire, it becomes loose when the magnetic core 4 is translated to wind the next circle of copper wire, resulting in different diameters of each circle, thereby affecting the quality of the entire coil;

[0036] Reference Figure 1-6As another preferred embodiment of the present invention, the difference from embodiment 1 is that the winding mechanism 2 also includes a clamping member 28, which includes a mounting seat 281, a first pressure roller 282, a fixed plate 283 and a tension spring 284; one end of the mounting seat 281 is rotatably connected to the movable seat 23 through a pin shaft, the first pressure roller 282 is rotatably mounted on the inner side of the mounting seat 281 and can contact the magnetic core 4, the fixed plate 283 is fixedly mounted on the outer side of the movable seat 23, the bottom end of the tension spring 284 is fixedly connected to the fixed plate 283, and the top end of the tension spring 284 is fixedly connected to the mounting seat 281; the tension spring 284 is in a tensioned state; under the action of the tension spring 284, the mounting seat 281 can be rotated downward, so that the first pressure roller 282 is always in close contact with the magnetic core 4, and when the magnetic core 4 is wound with copper wire, the first pressure roller 282 will press the wound copper wire, so that the problem of loosening of the copper wire when the magnetic core 4 is translated can be avoided, thereby improving the overall quality of the coil. Example

[0037] In Example 1 or Example 2, the winding mechanism 2 in the prior art mainly releases the copper wire through the bobbin, and when the magnetic core 4 reels the copper wire by self-rotation, the copper wire needs to be completely in contact with the outer wall of the magnetic core 4. Since the copper wire is not a flexible material, the reeling force of the self-rotation of the magnetic core 4 is insufficient to make the copper wire completely in contact with the outer wall of the magnetic core 4, which results in poor quality of the coil.

[0038] Reference Figure 1-8 As another preferred embodiment of the present invention, the difference from embodiment 1 or embodiment 2 is that the wire-releasing mechanism 3 includes a fixed seat 31, a wire-releasing drum 32, a second motor 33 and a tensioning member 34; the fixed seat 31 is fixedly mounted on the base 1, and the wire-releasing drum 32 is rotatably mounted on the inner side of the fixed seat 31 through a rotating shaft to release the copper wire; the second motor 33 is fixedly mounted on the outer side of the fixed seat 31, and the output shaft is fixedly connected to the wire-releasing drum 32, and the rotation speed of the second motor 33 is the same as that of the first motor 24; the wire-releasing drum 32 can be rotated by the drive of the second motor 33, which causes the copper wire on the wire-releasing drum 32 to be released, and at the same time, the first motor 24 drives the magnetic core mounting member 25 and the magnetic core 4 to rotate, so that the magnetic core 4 reels the released copper wire, thereby ensuring that the copper wire can be stably wound on the magnetic core 4.

[0039] The tensioning member 34 is installed on the outside of the wire-paying drum 32 to compress the copper wire; the tensioning member 34 includes a sleeve 341, a rotating rod 342, a coil spring 343 and a second pressing roller 344; the sleeve 341 is sleeved on the rotating shaft of the wire-paying drum 32 and is rotatably connected to the wire-paying drum 32, the coil spring 343 is sleeved on the rotating shaft of the wire-paying drum 32, one end of the coil spring 343 is fixedly connected to the fixing seat 31, the other end of the coil spring 343 is fixedly connected to the sleeve 341, and one end of the rotating rod 342 is fixedly connected to the fixing seat 31. The ring 341 is fixedly connected, and the other end of the rotating rod 342 is rotatably connected to the second pressure roller 344, and the second pressure roller 344 is in contact with the copper wire; under the action of the coil spring 343, the ring 341 can drive the rotating rod 342 to rotate downward all the time, which makes the second pressure roller 344 press the copper wire released by the pay-off drum 32, which makes the copper wire in a tensioned state, so that the copper wire keeps in contact with the magnetic core 4 after being wound on the magnetic core 4, thereby greatly improving the overall quality of the coil.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A transformer coil winding device, characterized in that: Including base (1), A winding mechanism (2), the winding mechanism (2) being mounted on one end of the base (1) so as to wind the copper wire around the outside of the magnetic core (4); A wire-releasing mechanism (3), the wire-releasing mechanism (3) being mounted on the other end of the base (1) for releasing the copper wire toward the winding mechanism (2); The winding mechanism (2) comprises a screw (21), a guide rod (22), a movable seat (23), a first motor (24) and a magnetic core mounting member (25); the screw (21) is rotatably mounted on the inner side of the base (1); the guide rod (22) is fixedly mounted on the inner side of the base (1) and is arranged parallel to the screw (21); one end of the bottom of the movable seat (23) is threadedly connected to the screw (21); the other end of the bottom of the movable seat (23) is slidably connected to the guide rod (22); the first motor (24) is fixedly mounted on the movable seat (23); and the magnetic core mounting member (25) is rotatably mounted on the movable seat (23) and is fixedly connected to the output shaft of the first motor (24); The winding mechanism (2) further comprises a transmission member (27), the transmission member (27) comprising a gear (271), a connecting shaft member (272), an incomplete gear (273), a first pulley (274) and a second pulley (275); the gear (271) is fixedly mounted on the end of the screw rod (21), the connecting shaft member (272) is rotatably mounted on the outside of the movable seat (23), the incomplete gear (273) is fixedly mounted on one end of the connecting shaft member (272) and is intermittently meshed with the gear (271), the first pulley (274) is fixedly mounted on the connecting shaft member (272), and the second pulley (275) is fixedly mounted on the output shaft of the first motor (24) and is meshed with the first pulley (274).

2. The transformer coil winding equipment according to claim 1, characterized in that: The magnetic core mounting member (25) comprises a first clamping plate (251), a mounting shaft (252), a connecting screw (253), a second clamping plate (254) and a fastening nut (255); one end of the mounting shaft (252) is fixedly connected to the first clamping plate (251), the other end of the mounting shaft (252) is fixedly connected to the output shaft of the first motor (24), one end of the connecting screw (253) is fixedly connected to the first clamping plate (251), the second clamping plate (254) is sleeved on the connecting screw (253) and is slidably connected to the connecting screw (253), and the fastening nut (255) is threadedly mounted on the connecting screw (253).

3. The transformer coil winding equipment according to claim 1, characterized in that: The connecting shaft (272) comprises a sleeve shaft (2721), an insert shaft (2722) and a clamping strip (2723); the sleeve shaft (2721) is rotatably mounted on the movable seat (23), the clamping strip (2723) is fixedly mounted on the outside of the insert shaft (2722), and the insert shaft (2722) and the clamping strip (2723) are both inserted into the sleeve shaft (2721) and slidably connected to the sleeve shaft (2721).

4. The transformer coil winding equipment according to claim 3, characterized in that: A clamping groove (2724) matching the clamping strip (2723) is provided on the inner side of the sleeve shaft (2721), and the clamping strip (2723) can slide along the clamping groove (2724).

5. The transformer coil winding equipment according to claim 4, characterized in that: The winding mechanism (2) further comprises a clamping member (28), the clamping member (28) comprising a mounting seat (281), a first pressure roller (282), a fixed plate (283) and a tension spring (284); one end of the mounting seat (281) is rotatably connected to the movable seat (23) via a pin shaft, the first pressure roller (282) is rotatably mounted on the inner side of the mounting seat (281) and can contact the magnetic core (4), the fixed plate (283) is fixedly mounted on the outer side of the movable seat (23), the bottom end of the tension spring (284) is fixedly connected to the fixed plate (283), and the top end of the tension spring (284) is fixedly connected to the mounting seat (281).

6. The transformer coil winding equipment according to claim 5, characterized in that: The wire-releasing mechanism (3) comprises a fixed seat (31), a wire-releasing drum (32), a second motor (33) and a tensioning member (34); the fixed seat (31) is fixedly mounted on the base (1); the wire-releasing drum (32) is rotatably mounted on the inner side of the fixed seat (31) via a rotating shaft to release the copper wire; the second motor (33) is fixedly mounted on the outer side of the fixed seat (31), and the output shaft is fixedly connected to the wire-releasing drum (32); the tensioning member (34) is mounted on the outer side of the wire-releasing drum (32) to compress the copper wire.

7. The transformer coil winding equipment according to claim 6, characterized in that: The tensioning member (34) comprises a sleeve (341), a rotating rod (342), a coil spring (343) and a second pressure roller (344); the sleeve (341) is sleeved on the rotating shaft of the wire-paying drum (32) and is rotatably connected to the wire-paying drum (32); the coil spring (343) is sleeved on the rotating shaft of the wire-paying drum (32); one end of the coil spring (343) is fixedly connected to the fixing seat (31); the other end of the coil spring (343) is fixedly connected to the sleeve (341); one end of the rotating rod (342) is fixedly connected to the sleeve (341); the other end of the rotating rod (342) is rotatably connected to the second pressure roller (344); and the second pressure roller (344) contacts the copper wire.

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