CN216389064U

CN216389064U - Transverse magnetic field two-dimensional curved surface coil winding tool

Info

Publication number: CN216389064U
Application number: CN202122867550.1U
Authority: CN
Inventors: 吕以亮; 李亮; 杨宇平; 陈荣刚
Original assignee: Huazhong University of Science and Technology
Current assignee: Huazhong University of Science and Technology
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-26
Anticipated expiration: 2031-11-22

Abstract

The utility model provides a transverse magnetic field two-dimensional curved surface coil winding tool, belongs to the field of two-dimensional curved surface coil winding, and comprises a limiting ring, a central pressing plate and a winding base station. Center clamp plate and wire winding base station are from last to setting up down, wire winding base station appearance and the coil appearance matching of treating the coiling, center clamp plate closely laminates in wire winding base station central authorities department, center clamp plate's shape with treat that the central cavity department shape of wire winding coil is unanimous, be used for treating that the coiling wire centers on self and the shaping of laminating wire winding base station appearance, the spacing ring is the half-ring form, the half-ring form matches with the appearance of wire winding base station, the spacing ring is fixed in center clamp plate top and is pressed close to the wire winding base station, a plurality of spacing rings are parallel to each other and are separated by the interval, the spacing ring is pressed close to the internal face of wire winding base station and is kept somewhere between the outer wall of wire winding base station with the hole that supplies to treat the coiling wire to walk the coiling. The utility model has simple structure and convenient use and can be suitable for winding various coils.

Description

Transverse magnetic field two-dimensional curved surface coil winding tool

Technical Field

The utility model belongs to the field of winding of two-dimensional curved surface coils, and particularly relates to a winding tool for a two-dimensional curved surface coil of a transverse magnetic field.

Background

The solenoid coil is widely applied to the fields of motors, transformers, magnetizing and the like, in the winding process of a general solenoid coil, a lead is wound on a winding mold with a certain shape, a magnetic field inner cavity with a corresponding shape can be formed after demolding, and magnetic lines of force in the inner cavity are parallel to the central axis of the inner cavity. In some specific occasions, the magnetic force lines of the solenoid coil need to be perpendicular to the central axis of the inner cavity, and in order to improve the utilization efficiency of magnetic field energy, the shape of the solenoid coil needs to be close to the shape of a permanent magnet or a magnetic pole of a motor rotor as much as possible. Most of the existing winding methods adopt a round section wire to wind a planar coil, then the planar coil is bent into a required curved surface, and finally the planar coil is spliced into a closed cavity.

Fig. 1 and 2 show the external shapes of several curved surface solenoid coils, specifically, fig. 1 is a schematic diagram of the external shape of an arc-shaped coil, and fig. 2 is a schematic diagram of a square coil, and as can be seen from the two diagrams, the coil is formed by bending a square or racetrack-shaped planar coil in the axial direction. However, in the actual manufacturing process, the way of manufacturing the planar coil first and then bending and forming the planar coil leads to the following disadvantages:

1. the lead has certain toughness, which can cause the problems of difficult bending and rebound after bending;

2. when the cable is bent, the cable cannot be controlled, wires are bent, and the turn-to-turn gap is uneven, so that the wires between layers are embedded into each other, and the reinforcing treatment is difficult;

3. when the wound coil is bent, collision of the conducting wires is unpredictable, and mutual friction and damage of insulation between wires can be caused, so that waste parts are generated.

Therefore, in the winding stage of the coil, a proper tooling die and a proper technological means are required to be prepared to realize the one-step forming of the winding of the curved-surface coil. Therefore, a set of suitable winding tools and process means need to be developed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide a winding tool for a transverse magnetic field two-dimensional curved surface coil, which realizes convenient and quick winding of the two-dimensional curved surface coil by designing the shapes and the structures of a limiting ring, a central pressing plate and a winding base station.

In order to achieve the aim, the utility model provides a transverse magnetic field two-dimensional curved surface coil winding tool, which comprises a limiting ring, a central pressing plate and a winding base station, wherein the limiting ring, the central pressing plate and the winding base station are arranged from top to bottom, the appearance of the winding base station is matched with the appearance of a coil to be wound, so that the lead to be wound can be attached to the winding base station and shaped according to the shape of the outer wall of the winding base station, the central pressing plate is tightly attached to the center of the winding base station, the shape of the central pressing plate is consistent with the shape of the central cavity of the coil to be wound, the wire winding base station is used for winding wires, the limiting rings are in a half-ring shape, the half-ring shape is matched with the shape of the wire winding base station, the limiting rings are fixed above the central pressing plate and close to the wire winding base station, the limiting rings are parallel to each other and spaced at intervals, and the limiting rings are close to the inner wall surface of the wire winding base station and are kept between the inner wall surface and the outer wall surface of the wire winding base station to form holes for the wires to be wound to pass through for winding.

Further, it still includes the wire winding bottom plate, and the wire winding bottom plate is the rectangle, and the wire winding bottom plate sets up in wire winding base station below, is provided with a plurality of pilot holes on the wire winding bottom plate, and central clamp plate and wire winding base station also are provided with the pilot hole.

Further, it still includes the cardboard, the cardboard is rectangular form, the back on the cardboard is provided with a plurality of draw-in grooves, be provided with a bail in every draw-in groove, every draw-in groove includes a pair of relative latch that sets up, the bail is between a pair of latch, the latch has certain elasticity, distance between the latch slightly is less than the width of spacing ring, the quantity of draw-in groove is the same with the quantity of spacing ring, the draw-in groove is used for the fixed spacing ring of block, the bail is used for from last to passing the pilot hole on central clamp plate, wire winding base station and the wire winding bottom plate down to fix the spacing ring, central clamp plate, wire winding base station and wire winding bottom plate as an organic whole.

Further, the wire winding machine further comprises a pin, wherein the pin is a screw or a bolt with a screw thread-free screw, and the pin is used for fixing the limiting ring, the central pressing plate, the wire winding base table and the wire winding bottom plate into a whole.

Furthermore, two ends of the limiting ring are provided with chamfers.

Furthermore, the distance between the two end heads of the limiting ring and the winding bottom plate is 1.2 to 1.4 times of the diameter of the wire to be wound.

Further, the cross section of the winding base station is rectangular or semicircular with two adjacent chamfers.

Furthermore, the cross section of the limiting ring is matched with that of the winding base station, and correspondingly, the central pressing plate is in a saddle shape and used for winding a saddle-shaped coil in a matching mode, or the central pressing plate is in a rectangular shape and used for winding a rectangular coil in a matching mode.

Furthermore, the distance between the inner wall surface of the limiting ring close to the winding base and the outer wall surface of the winding base is 1.1 to 1.3 times of the diameter of the lead to be wound.

Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

1. the transverse magnetic field two-dimensional curved surface coil winding tool is simple in structure, low in cost, durable and easy to achieve, can be formed by single winding aiming at a single-layer curved surface coil, and can be matched with automatic equipment to a certain extent.

2. The winding requirements of wires of various sizes and coils of different sizes with the same bending radian can be met by replacing the central pressing plate; the winding requirements of various bending radians and various bending shapes can be met by replacing the winding base station and the limiting ring.

3. In the winding process, the wire to be wound is positioned by the combined action of the winding base station, the central pressing plate and the limiting ring, so that the function of the die is realized, namely the conductors are closely arranged, and meanwhile, the opening of the die can be properly enlarged from the end face of the limiting ring, so that the conductors can correctly enter the die.

4. Spacing rings are separated by intervals, so that the visual degree of the winding process is high, and the winding quality of the coil is conveniently monitored.

5. The utility model can meet the winding requirement of the large-section rectangular section wire, the coil winding displacement is regular, and the duty ratio is high.

6. The tool is low in cost and small in size, and planning and preparation are facilitated under the actual production condition.

Drawings

FIG. 1 is a schematic view of an arc coil;

FIG. 2 is a schematic diagram of a square coil;

FIG. 3 is a schematic structural diagram of a transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model;

FIG. 4 is a schematic structural diagram of a winding base plate of the transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model;

FIG. 5 is a schematic structural diagram of a winding base of the transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model;

FIG. 6 is a schematic structural diagram of a central pressing plate of the transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model;

FIG. 7 is a schematic structural diagram of a limiting ring of a transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model;

FIG. 8 is a schematic structural diagram of the transverse magnetic field two-dimensional curved surface coil winding tool during working after being assembled;

fig. 9 is a schematic structural diagram of a coil winding process completed by using a transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Fig. 3 is a schematic structural diagram of a winding tool for a transverse magnetic field two-dimensional curved surface coil in an embodiment of the utility model, and it can be seen from the figure that the utility model provides a winding tool for a transverse magnetic field two-dimensional curved surface coil, which includes a pin 1, a limiting ring 2, a central pressing plate 3, a winding base 4 and a winding bottom plate 5. Wherein, spacing ring 2, central clamp plate 3 and wire winding base station 4 from last to setting up down, 4 appearances of wire winding base station match with the coil appearance of treating the coiling, so that the wire of treating the coiling is attached on wire winding base station 4 and according to the shaping of 4 outer wall shapes of wire winding base station, central clamp plate 3 closely laminates in wire winding base station 4 central authorities department, central clamp plate 3's shape and treat that the central cavity department shape of coiling is unanimous, be used for treating the coiling wire around self and laminate 4 appearances shaping of wire winding base station, spacing ring 2 is half annular form, half annular shape matches with the appearance of wire winding base station, spacing ring 2 is fixed in central clamp plate 3 top and is pressed close to wire winding base station 4, a plurality of spacing rings 2 are parallel to each other and are separated by the interval, spacing ring 2 is pressed close to the internal face of wire winding base station 4 and is kept somewhere with wire winding base station 4 outer wall face and is used for treating the hole that the coiling wire winding was walked through. The winding bottom plate 5 is rectangular, the winding bottom plate is arranged below the winding base platform, a plurality of assembling holes are formed in the winding bottom plate, and the central pressing plate 3 and the winding base platform 4 are also provided with assembling holes. The pin is used for fixing the limiting ring 2, the central pressing plate 3, the winding base 4 and the winding bottom plate 5 into a whole.

Fig. 4 is a schematic structural view of a winding base plate of the winding tool for the transverse magnetic field two-dimensional curved surface coil according to the embodiment of the utility model, and it can be seen from the figure that the winding base plate is provided with four base plate screw holes 6, the base plate screw holes 6 are spaced at the same intervals, and the center of the winding base plate is provided with a screw hole 7 matched with the winding machine, so that the winding tool for the transverse magnetic field two-dimensional curved surface coil is fixedly connected with the winding machine through the screw hole 7 matched with the winding machine.

Fig. 5 is a schematic structural view of a winding base of the winding tool for a transverse magnetic field two-dimensional curved surface coil according to the embodiment of the present invention, and it can be seen from the figure that, in this embodiment, the cross section of the winding base 4 is semicircular, the entire winding base 4 is semicircular, four assembly holes 8 are formed in the top surface of the winding base, and the intervals between the four assembly holes 8 are the same as the bottom plate screw holes on the winding bottom plate. In fact, in engineering practice, the cross section of the winding base 4 can also be a rectangle with two adjacent chamfers for winding a rectangular coil.

Fig. 6 is a schematic structural diagram of a central pressing plate of the winding tool for a transverse magnetic field two-dimensional curved surface coil according to the embodiment of the present invention, and it can be seen from the diagram that, in the embodiment, the central pressing plate is in a saddle shape, and four pressing plate assembling holes 9 are formed in the central pressing plate, and the interval between the four pressing plate assembling holes 9 is the same as that of a bottom plate screw hole on the winding bottom plate 5, and is also the same as that between four assembling holes 8 formed in the top surface of the winding base 4.

Fig. 7 is a schematic structural diagram of a limiting ring of a transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model, and fig. 8 is a schematic structural diagram of a transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model when the assembly is completed and the working is performed, as can be seen from the two diagrams, the cross section of the limiting ring 2 is matched with that of a winding base station, and in the embodiment, a central pressing plate is saddle-shaped to be matched with and wound with a saddle-shaped coil. In engineering practice, the central platen is rectangular to match the winding of a rectangular coil. The distance between the inner wall surface of the limiting ring close to the winding base station and the outer wall surface of the winding base station is 1.1 to 1.3 times of the diameter of the lead to be wound. In the embodiment of the utility model, the number of the limiting rings is the same as the number of the pressure plate assembling holes 9, the number of the bottom plate screw holes and the number of the assembling holes 8 formed in the top surface of the winding base 4. The distance between the two ends of the limiting ring and the winding bottom plate is 1.2 times to 1.4 times of the diameter of the wire to be wound, and the two ends of the limiting ring are separated from the winding bottom plate by a small distance and are used as a wire inlet 13. During winding, the lead wire is inserted or slid into a hole reserved between the inner wall surface of the limiting ring 2 and the outer wall surface of the winding base 4 from the lead wire inlet 13 to be wound. The two ends of the winding base 4 are winding areas 12, and the wire is bent at the winding areas to be wound to the other side for continuous winding.

Fig. 9 is a schematic structural view of a coil wound by using the transverse magnetic field two-dimensional curved surface coil winding tool in the embodiment of the utility model, and it can be seen from the figure that the pin 1 fixes the limiting ring, the central pressing plate, the winding base station and the winding bottom plate into a whole, the coil is wound and attached to the outer wall of the winding base station, the limiting ring is limited between the inner wall surface of the limiting ring and the outer wall surface of the winding base station, the wound coil surrounds the central pressing plate, and the central assembling hole of the wound coil has the same shape as the central pressing plate.

In yet another embodiment of the present invention, a snap plate may be used in place of the pin. Specifically, the cardboard is rectangular form, the back on the cardboard is provided with a plurality of draw-in grooves, be provided with a bail in every draw-in groove, every draw-in groove includes the latch of a pair of relative setting, the bail is between a pair of latch, the latch has certain elasticity, distance between the latch slightly is less than the width of spacing ring 2, the quantity of draw-in groove is the same with the quantity of spacing ring 2, the draw-in groove is used for the fixed spacing ring 2 of block, the bail is used for from last to passing central clamp plate 3 down, the pilot hole on wire winding base station 4 and the wire winding bottom plate 5, with spacing ring 2, central clamp plate 3, wire winding base station 4 and wire winding bottom plate 5 are fixed as an organic whole.

In another embodiment of the present invention, the pin is a screw or a bolt with a non-threaded screw rod, and the screw or the bolt with a non-threaded screw rod can pass through the pressure plate assembly hole, the bottom plate screw hole, the assembly hole formed on the top surface of the winding base and the limit ring assembly hole on the top of the limit ring to fix the pressure plate assembly hole, the bottom plate screw hole, the assembly hole formed on the top surface of the winding base and the limit ring assembly hole into a whole.

In the utility model, the winding base plate can be fixed with a rotating device (such as a winding machine) through the screw holes 7, and the winding base plate and the limiting ring jointly restrain the conductor from entering the range of a mold in the winding process of the coil. The winding base station plays a role in restricting conductor arrangement, and the shape of the cross section of the winding base station determines the bending shape and angle of the coil. The thickness of the central pressing plate influences the diameter of the wound wire, and the shape of the long edge of the central pressing plate influences the winding shape of the coil. The limiting ring plays a role in restricting conductor arrangement, the cross section appearance of the limiting ring is matched with the winding base station to realize accurate positioning of specific coil appearance, and the inlet of the conductor is provided with rounding transition to prevent the conductor from excessively rubbing and damaging insulation with a tool. The limiting ring is split, and a space between the limiting ring and the limiting ring can be used for monitoring and correcting the shape of the conductor;

the winding process by adopting the tool comprises the following steps:

1. assembling the tool and connecting the tool with a winding machine (or winding by pure hands);

2. the head end of the lead is lapped at a position of a limiting ring at one end part and is bent and fixed by the limiting ring;

3. starting the rotating equipment, aligning the conducting wire to the inlet, embedding the conducting wire in a circle by circle, and if the conducting wire cannot be tightly attached due to toughness, correcting the shape by adopting modes such as beating and the like;

4. after the winding of the corresponding turns is finished, the limiting ring is removed, the coil is taken down, and then the limiting ring is installed, so that the production can be repeated.

In practical engineering practice, the sectional arrangement of the limiting ring may cause that the conductors cannot be completely attached to each other due to insufficient winding tension, and at this time, a tapping method can be adopted for control.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A transverse magnetic field two-dimensional curved surface coil winding tool is characterized by comprising a limiting ring (2), a central pressing plate (3) and a winding base table (4), wherein,

the limiting ring (2), the central pressing plate (3) and the winding base station (4) are arranged from top to bottom, the shape of the winding base station (4) is matched with the shape of a coil to be wound, so that the lead to be wound can be attached to the winding base station (4) and is formed according to the shape of the outer wall of the winding base station (4), the central pressing plate (3) is tightly attached to the center of the winding base station (4), the shape of the central pressing plate (3) is consistent with the shape of the central hollow part of the coil to be wound, the utility model provides a be used for treating that the coiling wire centers on self and laminating wire winding base station (4) appearance shaping, spacing ring (2) are the half-ring form, the half-ring form matches with the appearance of wire winding base station, spacing ring (2) are fixed in central clamp plate (3) top and are pressed close to wire winding base station (4), a plurality of spacing rings (2) are parallel to each other and are separated by the interval, spacing ring (2) press close to the internal face of wire winding base station (4) and with wire winding base station (4) outer wall between keep somewhere with the hole that supplies to treat that the coiling wire to walk the coiling.

2. The winding tool for the transverse magnetic field two-dimensional curved surface coil according to claim 1, further comprising a winding base plate (5), wherein the winding base plate is rectangular and is disposed below the winding base, the winding base plate is provided with a plurality of assembling holes, and the central pressing plate (3) and the winding base (4) are also provided with assembling holes.

3. The winding tool for the transverse magnetic field two-dimensional curved surface coil according to claim 2, further comprising a clamping plate, wherein the clamping plate is long, a plurality of clamping grooves are formed in the back surface of the clamping plate, a clamping nail is arranged in each clamping groove, each clamping groove comprises a pair of clamping teeth which are oppositely arranged, the clamping nail is arranged between the pair of clamping teeth, the clamping teeth have certain elasticity, the distance between the clamping teeth is slightly smaller than the width of the limiting ring (2), the number of the clamping grooves is the same as that of the limiting ring (2), the clamping grooves are used for clamping and fixing the limiting ring (2), and the clamping nail is used for penetrating through assembling holes in the central pressing plate (3), the winding base (4) and the winding bottom plate (5) from top to bottom so as to fix the limiting ring (2), the central pressing plate (3), the winding base (4) and the winding bottom plate (5) into a whole.

4. The winding tool for the transverse magnetic field two-dimensional curved surface coil is characterized by further comprising a pin, wherein the pin is a screw or a bolt with a screw without threads, and the pin is used for fixing the limiting ring (2), the central pressing plate (3), the winding base table (4) and the winding bottom plate (5) into a whole.

5. The winding tool for the transverse magnetic field two-dimensional curved surface coil according to claim 3 or 4, wherein two ends of the limiting ring are provided with chamfers.

6. The tool for winding the transverse magnetic field two-dimensional curved surface coil according to claim 5, wherein the distance between the two ends of the limiting ring and the winding bottom plate is 1.2 to 1.4 times of the diameter of the wire to be wound.

7. The tool for winding the transverse magnetic field two-dimensional curved surface coil according to claim 6, wherein the cross section of the winding base is rectangular or semicircular with two adjacent chamfers.

8. The winding tool for the transverse magnetic field two-dimensional curved surface coil of claim 7 is characterized in that the cross section of the limiting ring (2) is matched with that of the winding base, and correspondingly, the central pressing plate is saddle-shaped to be matched with the winding base for winding the saddle-shaped coil, or the central pressing plate is rectangular to be matched with the winding base for winding the rectangular coil.

9. The tool for winding the transverse magnetic field two-dimensional curved surface coil according to claim 8, wherein the distance between the inner wall surface of the limiting ring close to the winding base and the outer wall surface of the winding base is 1.1 to 1.3 times of the diameter of the wire to be wound.