Wire winding device for inclined slot iron core

Abstract

The present invention relates to the technical field of winding equipment, and provides a winding device for a skewed slot iron core, which includes a main bracket, a main shaft, a die head assembly, a winding assembly, and a wire guiding assembly. The main shaft is supported on the main bracket; the die head assembly includes a die head seat and a positioning seat, and the positioning seat is elastically connected to one end of the die head seat and can move relative to the die head seat; the wire guiding assembly includes an upper wire guiding ear and a lower wire guiding ear for guiding the enameled wire to the tooth part of the iron core; the upper wire guiding ear extends along a first direction, and the first direction is inclined relative to the longitudinal section, the lower wire guiding ear extends along a second direction, and the second direction is inclined relative to the longitudinal section. An upper guiding groove for the upper wire guiding ear to move along the first direction and a lower guiding groove for the lower wire guiding ear to move along the second direction are formed on the positioning seat. Compared with the prior art, the iron core can have a higher magnetic field intensity, ensuring the magnetism of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of winding equipment, and particularly to a winding device for a skewed slot iron core. Background Art

[0002] The motor iron core is an important component in a motor. It bears the magnetic field and mechanical force of the motor and has a crucial impact on the performance and efficiency of the motor. The motor iron core usually adopts a laminated structure, which is composed of multiple thin silicon steel sheets laminated together. Each silicon steel sheet is specially treated to reduce iron loss and hysteresis loss, thereby improving the efficiency of the motor.

[0003] Currently, for a motor, winding the stator iron core and the rotor iron core is an important link, which is related to the quality of the product. For the stator and rotor iron cores with the slot openings facing outward, a flying fork winding machine is often used for winding. The traditional winding machine includes a central shaft, a flying fork, and a wire support ear. The flying fork is rotatably arranged on the central shaft with the axis of the central shaft as the axis. The wire support ear is connected to the front end of the central shaft. The wire support ear extends along the axial direction of the central shaft and moves along this axial direction. The wire support ear has an arc-shaped wire surface that can guide the enameled wire to the iron core. However, since the wire support ear extends along the axial direction of the central shaft, when winding a skewed slot iron core, there is an inclined angle between the wire support ear and the slot wall of the teeth of the iron core. In this way, when winding coils, it is easy to form a large gap between the wire and the teeth and between adjacent wires, which will reduce the number of winding turns, resulting in a smaller magnetic field intensity and thus affecting the magnetism. Summary of the Invention

[0004] The purpose of the present invention is to provide a winding device for a skewed slot iron core to solve the technical problem in the prior art that when winding a skewed slot iron core, the number of winding turns is reduced, resulting in a smaller magnetic field intensity and thus affecting the magnetism.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A wire winding device for an inclined slot iron core is provided, including: a main bracket movably arranged on a substrate; a main shaft supported on the main bracket; a die head assembly including a die head seat connected to the main shaft and having a longitudinal section passing through the axis of the main shaft, and a positioning seat for abutting against the tooth portion of the iron core to be wire-wound, the positioning seat being elastically connected to the other end of the die head seat opposite to the end connected to the main shaft and being able to move relative to the die head seat in the axial direction of the main shaft; a wire winding assembly including a wire winding member for winding enameled wire around the tooth portion of the iron core to be wire-wound, the wire winding member being arranged on the periphery of the die head assembly and being able to rotate relative to the die head assembly with the axis of the main shaft as the axis; and a wire guiding assembly including an upper wire guiding ear and a lower wire guiding ear for guiding the enameled wire onto the tooth portion, the upper wire guiding ear and the lower wire guiding ear being respectively arranged on the die head seat and being spaced apart in a direction perpendicular to the surface of the substrate; the upper wire guiding ear extends in a first direction, the first direction being inclined relative to the longitudinal section, and an upper guiding groove is formed on the positioning seat for causing the upper wire guiding ear to move in the first direction when the positioning seat and the die head seat move relative to each other; the lower wire guiding ear extends in a second direction, the second direction being inclined relative to the longitudinal section, and a lower guiding groove is formed on the positioning seat for causing the lower wire guiding ear to move in the second direction when the positioning seat and the die head seat move relative to each other.

[0006] In some embodiments, the upper wire guiding ear and the lower wire guiding ear are symmetrically arranged relative to the axis of the main shaft.

[0007] In some embodiments, the die head assembly further includes a wire hanging plate arranged on the die head seat and movable relative to the die head seat along the axial direction of the main shaft, the wire hanging plate including a wire hanging portion for fixing the enameled wire on the iron core.

[0008] In some embodiments, the wire winding device for an inclined slot iron core further includes a driving assembly for causing the upper wire guiding ear and the lower wire guiding ear to move relative to the die head seat in a direction perpendicular to the surface of the substrate; the main shaft is of a hollow structure; the driving assembly includes: a hollow driving shaft built in the main shaft and coaxial with the main shaft, and the driving shaft is arranged to be movable relative to the main shaft but not rotatable relative to the main shaft, the driving shaft having a first end portion and a second end portion extending beyond the two end portions of the main shaft; a driving power member connected to the first end portion and used for driving the driving shaft to move; a connecting seat movably arranged in the die head seat along the axial direction of the main shaft, the second end portion being connected to the connecting seat and being able to rotate relative to the connecting seat; and an operating rod for driving the upper wire guiding ear and the lower wire guiding ear to move in a direction perpendicular to the surface of the substrate, the operating rod being fixedly connected to the connecting seat.

[0009] In some embodiments, the die head assembly further includes an upper control block connected to the upper wire lug and a lower control block connected to the lower wire lug; the die head base is provided with an upper chamber and a lower chamber, the upper control block is movably disposed in the upper chamber along a direction perpendicular to the surface of the substrate, and the lower control block is movably disposed in the lower chamber along a direction perpendicular to the surface of the substrate; the upper control block has an upper concave cavity for the operating rod to extend into and an upper driving surface located at the bottom surface of the upper concave cavity and abutting against the end of the operating rod, the upper driving surface includes an upper horizontal portion and an upper inclined portion that extends obliquely from the upper horizontal portion towards the connecting seat and towards the main shaft; the lower control block has a lower concave cavity for the operating rod to extend into and a lower driving surface located at the bottom surface of the lower concave cavity and abutting against the end of the operating rod, the lower driving surface includes a lower horizontal portion and a lower inclined portion that extends obliquely from the lower horizontal portion towards the connecting seat and towards the main shaft.

[0010] In some embodiments, an upper sliding groove extending in a direction orthogonal to the axial direction of the main shaft is formed on the end face of the upper control block, and the upper wire lug has an upper engaging portion that is engaged with and slidably disposed in the upper sliding groove; a lower sliding groove extending in a direction orthogonal to the axial direction of the main shaft is formed on the end face of the lower control block, and the lower wire lug has a lower engaging portion that is engaged with and slidably disposed in the lower sliding groove.

[0011] In some embodiments, the positioning seat has a positioning groove for the outer end of the tooth portion to be placed therein, the positioning groove has a positioning surface located at its bottom surface and for abutting against the tooth portion, the upper guiding groove extends from one end of the positioning seat facing the die head base along a first direction to the positioning surface, and the lower guiding groove extends from one end of the positioning seat facing the die head base along a second direction to the positioning surface.

[0012] In some embodiments, the winding assembly further includes a winding bracket fixed on the main shaft and a winding power member for driving the main shaft to rotate, the winding power member is supported on the main bracket, and the winding member is fixed on the winding bracket and supported by the winding bracket.

[0013] In some embodiments, a wire guiding tube for the external enameled wire to move is provided inside the driving shaft, the wire guiding tube has a wire inlet and a wire outlet at both ends thereof, the wire inlet allows the enameled wire to enter the inside of the wire guiding tube, and the wire outlet allows the internal enameled wire to pass through; a main wire through groove is formed on the main shaft, a driving wire through groove is formed on the driving shaft, the main wire through groove, the driving wire through groove, and the wire outlet are sequentially communicated, and a wire wheel member for guiding the enameled wire onto the winding member is provided in the main wire through groove of the main shaft.

[0014] In some embodiments, the driving assembly further includes a driving support seat that can move relative to the main bracket along the axial direction of the main shaft, the first end of the driving shaft is rotatably but non - relatively movably supported on the driving support seat, and the driving power member is fixed on the driving support seat and supported by the driving support seat.

[0015] Compared with the prior art, the winding device for a skewed slot iron core provided by the present invention includes a main shaft, a die head assembly, a winding assembly, a wire guiding assembly, and a driving assembly. The die head assembly includes a die head seat connected to the main shaft and having a longitudinal section passing through the axis of the main shaft, and a positioning seat for abutting against the tooth portion of the iron core to be wound with wire. The positioning seat is elastically connected to the die head seat and can move relative to the die head seat in the axial direction of the main shaft; the wire guiding assembly includes an upper wire guiding ear and a lower wire guiding ear for guiding the enameled wire onto the tooth portion. The upper wire guiding ear extends in a first direction, and the first direction is inclined with respect to the longitudinal section. An upper guiding groove for moving the upper wire guiding ear in the first direction is formed on the positioning seat; the lower wire guiding ear extends in a second direction, and the second direction is inclined with respect to the longitudinal section. A lower guiding groove for moving the lower wire guiding ear in the second direction is formed on the positioning seat.

[0016] The beneficial effect of the winding device for a skewed slot iron core provided by the present invention is that: compared with the prior art, the present invention adopts a structure in which the upper wire guiding ear and the lower wire guiding ear are respectively inclined with respect to the longitudinal section, and a method in which the upper wire guiding ear and the lower wire guiding ear move along their respective extending directions. The smaller the angle between the upper wire guiding ear, the lower wire guiding ear and the tooth portion at the adjacent end on the iron core, the neater and more compact the arrangement of each turn of the enameled wire during winding, which can ensure that more enameled wire turns are wound in the slot, enabling the iron core to have a higher magnetic field intensity and guaranteeing the magnetism of the motor. Description of the Drawings

[0017] Figure 1 is a three-dimensional schematic diagram of the winding device for a skewed slot iron core and a substrate provided by an embodiment of the present invention;

[0018] Figure 2 is a sectional schematic diagram of the winding device for a skewed slot iron core and a substrate provided by an embodiment of the present invention;

[0019] Figure 3 is Figure 2 an enlarged view of part A in

[0020] Figure 4 is a top view schematic diagram of the die head assembly, main shaft, winding assembly, wire guiding assembly and iron core assembly of the winding device for a skewed slot iron core provided by an embodiment of the present invention;

[0021] Figure 5 is a front view schematic diagram of the die head assembly, main shaft, winding assembly, wire guiding assembly and iron core assembly of the winding device for a skewed slot iron core provided by an embodiment of the present invention;

[0022] Figure 6 is a side view schematic diagram when the iron core assembly is removed from the winding device for a skewed slot iron core provided by an embodiment of the present invention.

[0023] Description of the Main Component Symbols

[0024] 100 - Wire winding device; 101 - Substrate; 10 - Main bracket; 11 - Main bracket power component; 20 - Main shaft; 21 - Main wire passing groove; 30 - Die head assembly; 31 - Die head seat; 311 - Upper chamber; 312 - Lower chamber; 313 - Middle through chamber; 314 - Upper cover plate; 315 - Lower cover plate; 32 - Positioning seat; 321 - Upper guiding groove; 322 - Lower guiding groove; 323 - Positioning groove; 323a - Positioning surface; 33 - Guide post; 34 - First elastic element; 35 - Wire hanging plate; 351 - Wire hanging part; 352 - Wire hanging groove; 36 - Upper control block; 361 - Upper concave cavity; 362 - Upper driving surface; 363 - Upper horizontal part; 364 - Upper inclined part; 365 - Upper sliding groove; 37 - Lower control block; 371 - Lower concave cavity; 372 - Lower driving surface; 373 - Lower horizontal part; 374 - Lower inclined part; 375 - Lower sliding groove; 38 - Second elastic element; 40 - Wire winding assembly; 41 - Wire winding component; 42 - Wire winding bracket; 43 - Wire winding power component; 50 - Wire guiding assembly; 51 - Upper wire supporting ear; 511 - Upper guiding plane; 512 - Upper guiding inclined plane; 513 - Upper engaging part; 52 - Lower wire supporting ear; 521 - Lower guiding plane; 522 - Lower guiding inclined plane; 523 - Lower engaging part; 60 - Driving assembly; 61 - Driving shaft; 611 - First end; 612 - Second end; 613 - Driving wire passing groove; 62 - Driving power component; 63 - Connecting seat; 64 - Operating rod; 65 - Adapter bushing; 66 - Driving support seat; 70 - Wire tube; 71 - Wire inlet; 72 - Wire outlet; 200 - Iron core assembly; 201 - Iron core; 2011 - Tooth part; 201a - End piece; 201b - Center piece; 202 - Core shaft; 203 - Hook sleeve; 2031 - Hook; 300 - Guide wheel assembly; 400 - Iron core mounting frame; 500 - Baffle; NN - Axis; P - Longitudinal section; F1 - First direction; F2 - Second direction; a1 - First included angle; a2 - Second included angle. Detailed implementation mode

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the implementation of the present invention will be described in detail below with reference to specific drawings.

[0027] For convenience of description, the "front", "rear", "left", "right", "upper" and "lower" referred to hereinafter are consistent with the front, rear, left, right, upper and lower directions of the accompanying drawings themselves, but do not limit the structure of the present invention.

[0028] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The "first", "second" and similar terms used in the specification and claims of this patent application for invention do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one.

[0029] As Figure 1 shown, the winding device 100 for the inclined slot iron core provided in this embodiment includes: a main bracket 10 movably arranged on a substrate 101; a main shaft 20 supported on the main bracket 10; a die head assembly 30 including a die head seat 31 connected to the main shaft 20 and having a longitudinal section P passing through the axis NN of the main shaft 20, and a positioning seat 32 for abutting against the tooth portion 2011 of the iron core 201 to be wound with wire. The positioning seat 32 is elastically connected to the other end of the die head seat 31 opposite to the end connected to the main shaft 20 and can move relative to the die head seat 31 in the axial direction of the main shaft 20; a winding assembly 40 including a winding member 41 for winding an enameled wire (not shown in the figure) around the tooth portion 2011 of the iron core 201 to be wound. The winding member 41 is arranged on the periphery of the die head assembly 30 and can rotate relative to the die head assembly 30 with the axis NN of the main shaft 20 as the axis; and a wire guiding assembly 50 including an upper wire guiding ear 51 and a lower wire guiding ear 52 for guiding the enameled wire to the tooth portion 2011. The upper wire guiding ear 51 and the lower wire guiding ear 52 are respectively arranged on the die head seat 31 and are spaced apart in the direction perpendicular to the surface of the substrate 101. The upper wire guiding ear 51 extends along a first direction F1, and the first direction F1 is inclined with respect to the longitudinal section P. An upper guiding groove 321 is formed on the positioning seat 32 for moving the upper wire guiding ear 51 along the first direction F1 when the positioning seat 32 and the die head seat 31 move relative to each other. The lower wire guiding ear 52 extends along a second direction F2, and the second direction F2 is inclined with respect to the longitudinal section P. A lower guiding groove 322 is formed on the positioning seat 32 for moving the lower wire guiding ear 52 along the second direction F2 when the positioning seat 32 and the die head seat 31 move relative to each other.

[0030] The above-mentioned winding device 100 for a skewed slot iron core provided by the present invention has an upper wire lug 51 of the wire assembly 50 extending along a first direction F1, and the first direction F1 is inclined relative to the longitudinal section P. An upper guiding groove 321 for moving the upper wire lug 51 along the first direction F1 is formed on the positioning seat 32; a lower wire lug 52 extends along a second direction F2, and the second direction F2 is inclined relative to the longitudinal section P. A lower guiding groove 322 for moving the lower wire lug 52 along the second direction F2 is formed on the positioning seat 32. In this way, since the included angles between the upper wire lug 51 and the lower wire lug 52 and the edges of the corresponding tooth parts 2011 at one end of the iron core 201 are small, the enameled wires in each turn are arranged more neatly and compactly during winding, ensuring that a larger number of enameled wire coils can be wound in the slot, enabling the iron core 201 to have a higher magnetic field strength and guaranteeing the magnetism of the motor.

[0031] See Figures 1 to 3 For the winding device 100 for a skewed slot iron core provided in this embodiment, it is movably arranged on the substrate 101 and supported by the substrate 101. A guide wheel assembly 300 and an iron core mounting frame 400 are arranged on the substrate 101. The winding device 100 for a skewed slot iron core is arranged between the guide wheel assembly 300 and the iron core mounting frame 400. The guide wheel assembly 300 is used to guide the enameled wire in a wire barrel (not shown in the figure) into the winding device 100 (the wire assembly 50), and the iron core mounting frame 400 is used to place and support the iron core assembly 200 to be wound. In this embodiment, the iron core assembly 200 includes a core shaft 202, a hook sleeve 203 mounted on the core shaft 202, and an iron core 201 with a laminated structure. The iron core 201 is rotatably supported on the iron core mounting frame 400 in a manner that the core shaft 202 is substantially perpendicular to the surface of the substrate 101. The iron core 201 has tooth parts 2011 arranged at equal intervals in the axial direction NN of the core shaft 202. The number of tooth parts 2011 is six but not limited to this. The iron core 201 includes a plurality of iron core sheets arranged in sequence along the axial direction of the core shaft 202. The plurality of iron core sheets are divided into end sheets 201a at both ends of the iron core 201 and a central sheet 201b at the central position of the iron core 201 in the axial direction of the core shaft 202.

[0032] See Figures 1 to 3 For the iron core mounting frame 400 provided in this embodiment, a baffle 500 is arranged on the periphery. The baffle 500 is used to block the teeth adjacent to the tooth part 2011 to be wound, so as to prevent the enameled wire from entering other slots, and can ensure that the winding can be evenly wound into the slots on both sides of the tooth part 2011 during winding.

[0033] See Figures 1 to 3, the winding device 100 for the inclined slot iron core provided in this embodiment includes a main bracket 10, a main shaft 20, a die head assembly 30, a winding assembly 40, a wire guiding assembly 50, and a driving assembly 60. The main bracket 10 is movably arranged on a substrate 101, and a main bracket power member 11 is arranged on the substrate 101. In this embodiment, the surface of the substrate 101 has an X-axis direction (the direction of the X-axis shown in the figure) and a Y-axis direction (the direction of the Y-axis shown in the figure) that are perpendicular to each other. The main bracket 10 is movably mounted on the substrate 101 along the X-axis direction. The main bracket power member 11 is fixedly mounted on the substrate 101. The main bracket power member 11 is, but not limited to, a motor, and it drives the main bracket 10 to move relative to the iron core mounting bracket 400 along the X-axis direction on the substrate 101 through a lead screw and a nut seat.

[0034] See Figures 1 to 3 , the main shaft 20 provided in this embodiment extends along the X-axis direction. The main shaft 20 is a hollow structure. The main shaft 20 is rotatably supported on the main bracket 10 through bearings. The main shaft 20 is connected to the main bracket 10 in a relatively rotatable but non-movable manner. In this way, driven by the main bracket power member 11, the main bracket 10 drives the main shaft 20 to move together on the substrate 101.

[0035] See Figures 1 to 3 , the winding assembly 40 provided in this embodiment includes a winding member 41 for winding enameled wire around the tooth portions 2011 of the to-be-wound iron core 201. The winding member 41 is arranged on the periphery of the die head assembly 30 and can rotate relative to the die head assembly 30 with the axis NN of the main shaft 20 as the axis. In this embodiment, the winding assembly 40 includes a winding member 41, a winding bracket 42 fixed on the main shaft 20, and a winding power member 43 for driving the main shaft 20 to rotate. The winding power member 43 is supported on the main bracket 10. The winding member 41 is fixed on the winding bracket 42 and supported by the winding bracket 42. The wire guiding wheel assembly 300 guides the enameled wire through the inside of the main shaft 20 to the winding member 41. The winding power member 43 is, but not limited to, a motor. It is installed on the top of the main bracket 10 and drives the main shaft 20 to rotate around the axis NN of the main shaft 20 through a belt drive method, and drives the winding member 41 installed on the main shaft 20 through the winding bracket 42 to rotate around the axis NN of the main shaft 20, so as to wind the enameled wire around the respective tooth portions 2011 of the iron core 201.

[0036] See Figures 1 to 6, the die head assembly 30 provided in this embodiment is installed at one end of the main shaft 20 close to the iron core mounting bracket 400 and is supported by the main shaft 20. The die head assembly 30 includes a die head seat 31 connected to the main shaft 20 and a positioning seat 32 for abutting against the tooth portion 2011 of the to-be-wound iron core 201. The positioning seat 32 is elastically connected to the other end of the die head seat 31 opposite to the end connected to the main shaft 20 and can move relative to the die head seat 31 in the axial direction of the main shaft 20. In this embodiment, the positioning seat 32 is movably installed at the front end of the die head seat 31 (the end facing the iron core mounting bracket 400 in the direction of the illustrated X axis). The positioning seat 32 is connected to the die head seat 31 through a guide post 33. The guide post 33 extends along the axial direction of the main shaft 20. The positioning seat 32 and the die head seat 31 can move relative to each other on the guide post 33. A first elastic element 34 is provided between the positioning seat 32 and the die head seat 31. The first elastic element 34 is, but not limited to, a spring, and it extends along the axial direction of the main shaft 20. In this way, the main bracket 10 drives the die head assembly 30 to move to the position of the iron core 201, and the positioning seat 32 abuts against the tooth portion 2011 of the iron core 201. When the die head seat 31 moves towards the iron core 201, it compresses the first elastic element 34, causing it to be compressed and form an elastic reset force. When the die head seat 31 moves away from the iron core 201, the positioning seat 32 continues to maintain contact with the iron core 201 through the elastic reset force of the first elastic element 34. It should be noted that the wire outlet end of the winding component 41 is located behind the end face where the positioning seat 32 contacts the iron core 201 (in the direction away from the iron core mounting bracket 400 in the direction of the illustrated X axis). When the winding component 41 rotates for winding, the enameled wire is rotationally wound around the iron core 201 in a way that is pulled backward and tightened by the winding component 41.

[0037] See Figures 1 to 3, the wire assembly 50 provided in this embodiment includes an upper wire lug 51 and a lower wire lug 52 for guiding the enameled wire to the tooth portion 2011. The upper wire lug 51 and the lower wire lug 52 are respectively arranged on the die head seat 31 and are spaced in a direction perpendicular to the surface of the substrate 101. A driving assembly 60 is arranged on the main bracket 10 for moving the upper wire lug 51 and the lower wire lug 52 relative to the die head seat 31 in a direction perpendicular to the surface of the substrate 101. The upper wire lug 51 and the lower wire lug 52 are both movably installed in the die head seat 31 and can move relative to the positioning seat 32 driven by the die head seat 31. They can also move relative to each other in a direction perpendicular to the surface of the substrate 101 driven by the driving assembly 60. It should be noted that when winding the enameled wire of the same layer, the die head seat 31 drives the upper wire lug 51 and the lower wire lug 52 to move relative to the positioning seat 32 from the initial position, and at the same time, the winding component 41 rotates. For each rotation of the winding component 41, the die head seat 31 advances a distance equal to the diameter of the enameled wire. After the winding of this layer of coil is completed, the die head seat 31 drives the upper wire lug 51 and the lower wire lug 52 to return to the initial position, and the driving assembly 60 moves the upper wire lug 51 and the lower wire lug 52 in opposite directions in a direction perpendicular to the surface of the substrate 101 by a distance equal to the diameter of the enameled wire respectively, so as to spread open the upper wire lug 51 and the lower wire lug 52 to guide the winding component 41 to wind the next layer (outer layer) of coil.

[0038] See Figures 4 to 6, the die head base 31 provided in this embodiment has a longitudinal section P passing through the axis NN of the main shaft 20. The upper wire lug 51 extends along the first direction F1, and the first direction F1 is inclined with respect to the longitudinal section P. An upper guide groove 321 is formed on the positioning base 32 for causing the upper wire lug 51 to move along the first direction F1 when the positioning base 32 and the die head base 31 move relative to each other; the lower wire lug 52 extends along the second direction F2, and the second direction F2 is inclined with respect to the longitudinal section P. A lower guide groove 322 is formed on the positioning base 32 for causing the lower wire lug 52 to move along the second direction F2 when the positioning base 32 and the die head base 31 move relative to each other. In this embodiment, one end of the upper wire lug 51 is connected to the die head base 31, and the other end extends along the first direction F1. The first direction F1 is inclined with respect to the longitudinal section P and forms a first included angle a1 with the longitudinal section P. The range of the first included angle a1 can be but is not limited to 2° to 15°, preferably 5° to 7°. An upper guide groove 321 extending along the first direction F1 is formed on the positioning base 32. When the die head base 31 drives the upper wire lug 51 to move relative to the positioning base 32, it drives the upper wire lug 51 to move along the first direction F1 on a plane above the iron core 201 and parallel to the upper end face of the iron core 201; one end of the lower wire lug 52 is connected to the die head base 31, and the other end extends along the second direction F2. The second direction F2 is inclined with respect to the longitudinal section P and forms a second included angle a2 with the longitudinal section P. The range of the second included angle a2 can be but is not limited to 2° to 15°, preferably 5° to 7°. A lower guide groove 322 extending along the second direction F2 is formed on the positioning base 32. When the die head base 31 drives the lower wire lug 52 to move relative to the positioning base 32, it drives the lower wire lug 52 to move along the second direction F2 on a plane below the iron core 201 and parallel to the lower end face of the iron core 201.

[0039] Please continue to refer to Figures 4 to 6, in this embodiment, the slopes of the upper wire lug 51 and the lower wire lug 52 are relatively small. That is, the upper wire lug 51 includes an upper guiding plane 511 at its inner end (the end close to the iron core mounting frame 400) and an upper guiding inclined plane 512 located on its top surface and extending obliquely downward from the end far from the iron core mounting frame 400 towards the iron core mounting frame 400 to the upper guiding plane 511. The included angle between the upper guiding inclined plane 512 and the bottom surface of the upper wire lug 51 is preferably 30°; the lower wire lug 52 includes a lower guiding plane 521 at its inner end (the end close to the iron core mounting frame 400) and a lower guiding inclined plane 522 located on its top surface and extending obliquely downward from the end far from the iron core mounting frame 400 towards the iron core mounting frame 400 to the lower guiding plane 521. The included angle between the lower guiding inclined plane 522 and the bottom surface of the lower wire lug 52 is preferably 30°. After the positioning seat 32 abuts against the tooth portion 2011 of the iron core 201, the contact between the upper wire lug 51 and the end piece 201a at the upper end of the iron core 201 (the uppermost end of the iron core 201 in the direction perpendicular to the surface of the substrate 101) aligns with the tooth of the positioning seat 32, such that the first direction F1 is parallel to the two side surfaces of the tooth (the surfaces of the groove walls located in the groove), and the upper guiding plane 511 is substantially perpendicular to the two side edges of the tooth (i.e., the edges formed on the end surface where the groove walls are located); similarly, the contact between the lower wire lug 52 and the end piece 201a at the lower end of the iron core 201 (the lowermost end of the iron core 201 in the direction perpendicular to the surface of the substrate 101) aligns with the tooth of the positioning seat 32, such that the second direction F2 is parallel to the two side surfaces of the tooth, and the lower guiding plane 521 is substantially perpendicular to the two side edges of the tooth. That is to say, after the positioning seat 32 contacts the iron core 201, the extending direction and the moving direction of the upper wire lug 51 are consistent with the extending direction of the end piece 201a at the upper end of the iron core 201, and the extending direction and the moving direction of the lower wire lug 52 are consistent with the extending direction of the end piece 201a at the lower end of the iron core 201. The slopes of the upper wire lug 51 and the lower wire lug 52 are relatively small, and the wire drops more smoothly. The enameled wire slides from the upper guiding inclined plane 512 onto the upper guiding plane 511. Since the upper guiding plane 511 is substantially perpendicular to the two side edges, and the two remain perpendicular during the movement of the upper wire lug 51, the clearance between the enameled wire and the tooth is relatively small when the enameled wire moves along the upper guiding plane 511 to the tooth. Similarly, the enameled wire slides from the lower guiding inclined plane 522 onto the lower guiding plane 521. Since the lower guiding plane 521 is substantially perpendicular to the two side edges, and the two remain perpendicular during the movement of the upper wire lug 51, the clearance between the enameled wire and the tooth is also relatively small when the enameled wire moves along the lower guiding plane 521 to the tooth. In this way, the enameled wire is wound more densely, ensuring a larger number of enameled wires in each layer, which can increase the number of turns, resulting in a larger number of wires in each slot and enhancing the magnetic field strength.

[0040] See Figure 4 and Figure 6, the upper wire lug 51 and the lower wire lug 52 provided in this embodiment are symmetrically arranged with respect to the axis NN of the main shaft 20. In this embodiment, the first direction F1 forms a first included angle a1 with the longitudinal section P, and the second direction F2 forms a second included angle a2 with the longitudinal section P, and the first included angle a1 is equal to the second included angle a2. The upper wire lug 51 and the lower wire lug 52 are arranged in a manner that the first direction F1 and the second direction F2 intersect perpendicular to the surface of the substrate 101.

[0041] See Figure 3 and Figure 6 , the die head assembly 30 provided in this embodiment further includes a wire hanging plate 35 disposed on the die head base 31 and movable relative to the die head base 31 along the axial direction of the main shaft 20. The wire hanging plate 35 includes a wire hanging portion 351 for fixing the enameled wire on the iron core 201. In this embodiment, the wire hanging plate 35 is connected to the driving assembly 60 and can move relative to the die head base 31. A wire hanging groove 352 is formed at the bottom of the wire hanging portion 351 to avoid the hook 2031 on the hook sleeve 203. It is worth mentioning that before winding, the wire hanging plate 35 is driven to move out of the positioning seat 32 and then move to the position of the corresponding hook 2031. The enameled wire on the winding member 41 is guided to the hook 2031 of the hook sleeve 203 through the inclined surface on the surface of the wire hanging portion 351. After the winding member 41 rotates one circle, the enameled wire can be "knotted" and fixed on the hook 2031, and then the iron core mounting frame 400 is driven to rotate the iron core 201 by an angle of one tooth and then winding is performed.

[0042] See Figure 2 , Figure 3 and Figure 5, the driving component 60 provided in this embodiment includes a hollow driving shaft 61, a driving power member 62, a connecting seat 63, and an operating rod 64. The driving shaft 61 is disposed inside the main shaft 20 and coaxial with the main shaft 20. The driving shaft 61 and the main shaft 20 are arranged to be relatively movable but non-rotatable relative to each other along the axial direction of the main shaft 20. The driving shaft 61 has a first end 611 and a second end 612 extending beyond the two end portions of the main shaft 20. The driving power member 62 is connected to the first end 611 and is used to drive the driving shaft 61 to move. The connecting seat 63 is movably disposed along the axial direction of the main shaft 20 within the die head seat 31. The second end 612 is connected to the connecting seat 63 through a transfer shaft sleeve 65 and can rotate relative to the connecting seat 63 but cannot move. The operating rod 64 is used to drive the upper wire lug 51 and the lower wire lug 52 to move relative to the die head seat 31 in a direction perpendicular to the surface of the substrate 101 when the connecting seat 63 moves. The operating rod 64 is fixedly connected to the connecting seat 63. In this embodiment, the connecting seat 63 is generally in the shape of a cuboid. A transfer shaft sleeve 65 is connected to the second end 612 of the driving shaft 61, and a bearing is provided between the two, which can rotate relative to each other. One end of the transfer shaft sleeve 65 is rotatably but non-movably installed on the connecting seat 63. The driving component 60 further includes a driving support seat 66 that can move relative to the main support 10 along the axial direction of the main shaft 20. The first end 611 of the driving shaft 61 is rotatably but non-relatively movably supported on the driving support seat 66. The driving power member 62 is fixed on the driving support seat 66 and supported by the driving support seat 66. The driving power member 62 is, but not limited to, a motor. The driving power member 62 is fixed to the driving support seat 66 by screws. The output shaft of the driving power member 62 is coaxial and fixedly connected to the lead screw. A nut seat threadedly connected to the lead screw is fixedly installed on the main support 10. It can be understood that under the drive of the driving power member 62, the driving support seat 66 will drive the driving shaft 61, the connecting seat 63, and the operating rod 64 installed on the connecting seat 63 to move relative to the main shaft 20 together.

[0043] See Figure 3 , in this embodiment, one end of the wire hanging plate 35 is fixedly connected to the operating rod 64. A hole for the wire hanging plate 35 to pass through is formed in the upper wire lug 51. The wire hanging plate 35 and the upper wire lug 51 can move relative to each other. In this way, the structure of the die head assembly 30 can be made more compact and the volume can be smaller.

[0044] See Figure 3 and Figure 5, the die head base provided in this embodiment is provided with an upper chamber 311 and a lower chamber 312. The die head assembly 30 further includes an upper control block 36 connected to the upper wire lug 51 and a lower control block 37 connected to the lower wire lug 52; the upper control block 36 is movably arranged in the upper chamber 311 along a direction perpendicular to the surface of the substrate 101, and the lower control block 37 is movably arranged in the lower chamber 312 along a direction perpendicular to the surface of the substrate 101; the upper control block 36 has an upper concave cavity 361 for the operating rod 64 to extend into and an upper driving surface 362 located at the bottom surface of the upper concave cavity 361 and abutting against the end of the operating rod 64, and the upper driving surface 362 includes an upper horizontal portion 363 and an upper inclined portion 364 that extends obliquely from the upper horizontal portion 363 towards the connecting seat 63 and towards the main shaft 20; the lower control block 37 has a lower concave cavity 371 for the operating rod 64 to extend into and a lower driving surface 372 located at the bottom surface of the lower concave cavity 371 and abutting against the end of the operating rod 64, and the lower driving surface 372 includes a lower horizontal portion 373 and a lower inclined portion 374 that extends obliquely from the lower horizontal portion 373 towards the connecting seat 63 and towards the main shaft 20. In this embodiment, an upper chamber 311, a middle through cavity 313, and a lower chamber 312 are sequentially arranged in the die head base 31 along a direction perpendicular to the surface of the substrate 101, the upper chamber 311, the middle through cavity 313, and the lower chamber 312 are communicated in sequence, the connecting seat 63 is movably arranged in the middle through cavity 313 along the axial direction of the main shaft 20, the upper control block 36 is movably installed in the upper chamber 311 along a direction perpendicular to the surface of the substrate 101, the lower control block 37 is movably installed in the lower chamber 312 along a direction perpendicular to the surface of the substrate 101, and the end of the operating rod 64 is formed with a guide angle. It can be understood that when the operating rod 64 moves along the axial direction of the main shaft 20 towards the iron core 201, the end of the operating rod 64 abuts against the upper horizontal portion 363 and the lower horizontal portion 373 of the upper control block 36 and the lower control block 37, and the movement of the operating rod 64 does not drive the upper control block 36 and the lower control block 37 to move in a direction perpendicular to the surface of the substrate 101; when the operating rod 64 moves along the axial direction of the main shaft 20 away from the iron core 201, the end of the operating rod 64 abuts against the upper inclined portion 364 and the lower inclined portion 374 of the upper control block 36 and the lower control block 37, thereby driving the upper control block 36 connected to the upper wire lug 51 and the lower control block 37 connected to the lower wire lug 52 to move away from each other.

[0045] Please continue to refer to Figure 3 and Figure 5, in this embodiment, an upper cover plate 314 is connected to the die head base 31 at the opening of the upper chamber 311, and a lower cover plate 315 is connected to the die head base 31 at the opening of the lower chamber 312. Second elastic elements 38 are provided between the upper cover plate 314 and the upper control block 36 and between the lower cover plate 315 and the lower control block 37. The second elastic elements 38 are, but not limited to, springs. In this way, under the action of the second elastic elements 38, when the operating rod 64 moves axially along the main shaft 20 towards the iron core 201 on the upper inclined part 364 and the lower inclined part 374, and after sliding away from the upper inclined part 364 and the lower inclined part 374, it will respectively push the upper control block 36 and the lower control block 37 to move back to the connecting seat 63.

[0046] In other embodiments, the die head base 31, the upper cover plate 314, and the lower cover plate 315 can be integrally formed.

[0047] See Figure 5 , an upper sliding groove 365 extending in a direction orthogonal to the axial direction of the main shaft 20 (i.e., the Y-axis direction) is formed on the end face of the upper control block 36 provided in this embodiment. The upper wire lug 51 has an upper engaging portion 513 that is engaged with and slidably disposed in the upper sliding groove 365; a lower sliding groove 375 extending in a direction orthogonal to the axial direction of the main shaft 20 is formed on the end face of the lower control block 37. The lower wire lug 52 has a lower engaging portion 523 that is engaged with and slidably disposed in the lower sliding groove 375. It can be understood that when the die head base 31 drives the upper wire lug 51 to move towards the iron core 201 in the X-axis direction, the upper wire lug 51 will move along the first direction F1 while moving relative to the upper control block 36 in the Y-axis direction under the guidance of the upper sliding groove 365 and the upper guiding groove 321. When the die head base 31 drives the lower wire lug 52 to move towards the iron core 201 in the X-axis direction, the lower wire lug 52 will move along the second direction F2 while moving relative to the lower control block 37 in the Y-axis direction under the guidance of the lower sliding groove 375 and the lower guiding groove 322.

[0048] See Figure 3 and Figure 6, the positioning seat 32 provided in this embodiment has a positioning groove 323 for the outer end of the tooth portion 2011 to be inserted. The positioning groove 323 has a positioning surface 323a located at its bottom surface and used to abut against the tooth portion 2011. The upper guiding groove 321 extends from one end of the positioning seat 32 facing the die head seat 31 along the first direction F1 to the positioning surface 323a, and the lower guiding groove 322 extends from one end of the positioning seat 32 facing the die head seat 31 along the second direction F2 to the positioning surface 323a. In this embodiment, the shape of the positioning groove 323 is adapted to the end face shape of the tooth portion 2011. It is generally parallelogram-shaped along the axial direction of the main shaft 20, and has an arc-shaped positioning surface 323a with a middle depression therein. In the direction perpendicular to the surface of the substrate 101, the center of the positioning surface 323a is basically aligned with the center of the iron core 201. That is to say, after the positioning seat 32 contacts the iron core 201, the center of the positioning groove 323 basically coincides with the center piece 201b of the iron core 201. The edge of the outer end of the tooth portion 2011 is covered by the groove wall of the positioning groove 323. In this way, the positioning of the iron core 201 can be improved, and the outer surface of the tooth can be avoided from being scratched by the enameled wire during winding.

[0049] See Figure 3 , a wire guiding tube 70 for the movement of the external enameled wire is provided inside the driving shaft 61 provided in this embodiment. The wire guiding tube 70 has a wire inlet 71 and a wire outlet 72 at its two ends. The wire inlet 71 allows the enameled wire to enter the inside of the wire guiding tube 70, and the wire outlet 72 allows the internal enameled wire to pass through. A main wire through groove 21 is opened on the main shaft 20, and a driving wire through groove 613 is opened on the driving shaft 61. The main wire through groove 21, the driving wire through groove 613, and the wire outlet 72 are sequentially communicated. A wire wheel member for guiding the enameled wire to the winding member 41 is provided in the main wire through groove 21 of the main shaft 20. It can be understood that the movement of the enameled wire can be facilitated through the wire guiding tube 70. The main shaft 20 and the driving shaft 61 rotate together, and the enameled wire passing through the wire outlet 72 can be prevented from being broken.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, or improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A winding device for a skewed slot core, characterized in that: include: A main support is movably disposed on a base plate; A main shaft, supported on the main support; The die assembly comprises a die seat connected to the spindle and having a longitudinal section passing through the axis of the spindle, and a positioning seat for abutting against the tooth portion of the iron core to be wound, wherein the positioning seat is elastically connected to the other end of the die seat opposite to the end connected to the spindle and can move relative to the die seat in the axial direction of the spindle; A winding assembly, comprising a winding component for winding the enameled wire around the teeth of the core to be wound, the winding component being arranged on the peripheral side of the die assembly and being rotatable relative to the die assembly with the axis of the main shaft as the axis; as well as A wire assembly, comprising an upper wire lug and a lower wire lug for guiding the enameled wire to the tooth portion, wherein the upper wire lug and the lower wire lug are respectively disposed on the die head seat and spaced apart in a direction perpendicular to the surface of the substrate; The upper wire support lug extends along a first direction, the first direction is inclined relative to the longitudinal section, and an upper guide groove is formed on the positioning seat for moving the upper wire support lug along the first direction when the positioning seat and the die head seat move relative to each other; The lower wire support lug extends along a second direction, the second direction is inclined relative to the longitudinal section, and a lower guide groove is formed on the positioning seat for moving the lower wire support lug along the second direction when the positioning seat and the die head seat move relative to each other.

2. The winding device for the skewed slot core according to claim 1, characterized in that: The upper conductor lug and the lower conductor lug are arranged symmetrically with respect to the axis of the main shaft.

3. The winding device for the skewed slot core according to claim 1, characterized in that: The die assembly also includes a wire hanging plate which is arranged on the die seat and can move relative to the die seat along the axial direction of the main shaft. The wire hanging plate includes a wire hanging part for fixing the enameled wire on the iron core.

4. The winding device for the skewed slot core according to claim 1, characterized in that: Also included is a driving assembly for moving the upper wire support lug and the lower wire support lug relative to the die head holder in a direction perpendicular to the surface of the substrate; The main shaft is a hollow structure; the driving assembly comprises: A hollow drive shaft is built into the main shaft and is coaxial with the main shaft, and the drive shaft and the main shaft are arranged to be relatively movable but not relatively rotatable, and the drive shaft has a first end and a second end extending beyond the two ends of the main shaft; A driving power member connected to the first end portion and used to drive the driving shaft to move; A connecting seat is movably disposed in the die head seat along the axial direction of the main shaft, and the second end portion is connected to the connecting seat and can rotate relative to the connecting seat; and An operating rod is used to drive the upper wire support lug and the lower wire support lug to move in a direction perpendicular to the surface of the substrate, and the operating rod is fixedly connected to the connecting seat.

5. The winding device for the skewed slot core according to claim 4, characterized in that: The die head assembly also includes an upper control block connected to the upper wire support ear and a lower control block connected to the lower wire support ear; the die head seat is provided with an upper chamber and a lower chamber, the upper control block can be movably arranged in the upper chamber along a direction perpendicular to the surface of the substrate, and the lower control block can be movably arranged in the lower chamber along a direction perpendicular to the surface of the substrate; the upper control block has an upper concave cavity for the operating rod to extend into and an upper driving surface located on the bottom surface of the upper concave cavity and abutting against the end of the operating rod, the upper driving surface includes an upper horizontal part and an upper inclined part extending obliquely from the upper horizontal part toward the connecting seat and in the direction of the main shaft; the lower control block has a lower concave cavity for the operating rod to extend into and a lower driving surface located on the bottom surface of the lower concave cavity and abutting against the end of the operating rod, the lower driving surface includes a lower horizontal part and a lower inclined part extending obliquely from the lower horizontal part toward the connecting seat and in the direction of the main shaft.

6. The winding device for the skewed slot core according to claim 5, characterized in that: An upper slide groove is formed on the end surface of the upper control block and extends in a direction orthogonal to the axial direction of the main shaft, and the upper wire support ear has an upper engaging portion that is engaged with the upper slide groove and slidably arranged in the upper slide groove; a lower slide groove is formed on the end surface of the lower control block and extends in a direction orthogonal to the axial direction of the main shaft, and the lower wire support ear has a lower engaging portion that is engaged with the lower slide groove and slidably arranged in the lower slide groove.

7. The winding device for the skewed slot core according to any one of claims 1 to 6, characterized in that: The positioning seat has a positioning groove for the outer end of the tooth portion to be placed in, and the positioning groove has a positioning surface located on its bottom surface and used to abut against the tooth portion, the upper guide groove extends from one end of the positioning seat facing the die head seat along the first direction to the positioning surface, and the lower guide groove extends from one end of the positioning seat facing the die head seat along the second direction to the positioning surface.

8. The winding device for the skewed slot core according to any one of claims 1 to 6, characterized in that: The winding assembly also includes a winding bracket fixed on the main shaft and a winding power member for driving the main shaft to rotate, the winding power member is supported on the main bracket, and the winding component is fixed on and supported by the winding bracket.

9. The winding device for the skewed slot core according to any one of claims 4 to 6, characterized in that: A wire tube for moving the external enameled wire is arranged in the driving shaft, and the wire tube has a wire inlet and a wire outlet at both ends thereof, the wire inlet is for the enameled wire to enter the wire tube, and the wire outlet is for the internal enameled wire to pass through; a main wire groove is arranged on the main shaft, and a driving wire groove is arranged on the driving shaft, the main wire groove, the driving wire groove and the wire outlet are connected in sequence, and a wire wheel component for guiding the enameled wire to the winding component is arranged in the main wire groove of the main shaft.

10. The winding device for the skewed slot core according to any one of claims 4 to 6, characterized in that: The driving assembly also includes a driving support seat that can move relative to the main bracket along the axial direction of the main shaft. The first end of the driving shaft is supported on the driving support seat rotatably but not relatively movably, and the driving power member is fixed on the driving support seat and supported by the driving support seat.

Images