CN119341298A

CN119341298A - A manufacturing device and method for hollow cup winding of a micro motor

Info

Publication number: CN119341298A
Application number: CN202411527579.7A
Authority: CN
Inventors: 王雪
Original assignee: Shaanxi Topda Precision Equipment Co ltd
Current assignee: Shaanxi Topda Precision Equipment Co ltd
Priority date: 2024-10-30
Filing date: 2024-10-30
Publication date: 2025-01-21
Anticipated expiration: 2044-10-30
Also published as: CN119341298B

Abstract

The invention discloses a device and a method for manufacturing a miniature motor hollow cup winding, the manufacturing device comprises a winding component, a curing component, an adhesive flattening component, a rolling component and the like. The winding component is used for winding the finished wire into a single planar coil, so that the adjacent turns of the guide are fastened in a pasting manner, and the problem that the whole specification and the running performance of the miniature motor are finally influenced due to overlarge specification of the single planar coil caused by the clearance between the adjacent wound wires due to the curling stress of the finished wire is solved. The fixed planar coils are fixed at fixed intervals through the bonding flattening component, so that the connection (interval) precision of the adjacent planar coils is improved, the problems that the conduction performance of the molded hollow cup winding and the overall running performance of the motor are affected due to errors in the lap joint width of the planar coils at present are solved, the manufacturing precision of the coils can be improved in the manufacturing process of the hollow cup winding, and the running performance of the miniature motor is finally improved.

Description

Manufacturing device and manufacturing method for miniature motor hollow cup winding

Technical Field

The invention relates to the technical field of miniature motor manufacturing, in particular to a device and a method for manufacturing a miniature motor hollow cup winding.

Background

Micromotors refer to motors of relatively small volume and power, typically used to drive small mechanical devices or as actuators in control systems. Due to the miniaturization characteristic of the miniature motor, the miniature motor is widely applied to the fields of medical treatment, aviation, automobiles, electronics and the like.

The hollow cup winding is a special winding form in the miniature motor, and is characterized in that the winding coil is hollow cup-shaped, and the winding form has the advantages of simple structure, light weight, small moment of inertia and the like, and is particularly suitable for miniature motors needing quick response and high-precision control, so that the miniature motor at present adopts the hollow cup winding more.

The current manufacturing process of the hollow cup winding generally comprises coil design, winding, insulation treatment, shaping, packaging and the like, wherein the coil design is to design proper parameters such as coil shape, turns, wire specification and the like according to the performance requirement of a motor. Because the hollow cup winding is of a cylindrical structure and is free of internal and external supports after forming, a plurality of winding planar coils are usually bonded and rolled into the hollow cup winding of the cylindrical structure at present, and a single planar coil can be of rectangular, square and other structures, after bonding forming, the hollow cup winding has higher surface strength compared with a structure in which a wire is spirally wound, and further the wire diameter of the wire and the overall specification of the hollow cup winding can be reduced compared with spiral winding, so that the miniature motor can be further miniaturized, and in the high-speed rotation of the miniature motor at a later stage, the higher body strength of the hollow cup motor can ensure the running performance of the miniature motor, and therefore, the non-spiral winding hollow cup motor winding is widely applied to miniature motors.

At present, in the winding manufacturing process of the hollow cup winding, a single coil with a planar structure is wound firstly, then the single coil is connected with a coil with a long strip structure, and the long strip coil is wound, so that the hollow cup winding can be formed. The performance index of the micro motor is high, so that the following defects exist in the manufacturing process of the coil:

1) In the process of manually winding the single coil, because the finished wire is generally in a reel structure, when the wire is uncoiled and wound, the wires between different coils cannot be closely attached in the process of winding the planar coil due to the curling stress of the wire, and further the wires which are wound later are outwards bent as shown in figures 9-10, so that the problem that gaps between the planar coils and the coils are overlarge is caused,

2) The plurality of planar coils after winding and forming have phase connection (interval) errors in the bonding process, so that the adjacent planar coils are different in lap joint width, and the conduction performance of the hollow cup winding after forming and the overall running performance of the motor are affected.

Therefore, in the current process of manufacturing the coreless winding of the micro motor, the quality control of the manufacturing process is still further required to be improved, and thus the running performance of the micro motor is improved.

Disclosure of Invention

The invention aims to solve the problems that the specification of a single planar coil is too large to finally influence the overall specification and the running performance of a miniature motor due to the fact that gaps are reserved between adjacent wound wires due to the curling stress of finished wires. And the problems that the conduction performance of the molded hollow cup winding and the overall running performance of the motor are affected due to errors in the lap joint width of the planar coil are solved by bonding the flattening component.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows, the manufacturing device of the miniature motor hollow cup winding, wherein the winding is formed by bonding and rolling a plurality of planar coils with planar structures, and the manufacturing device comprises:

A winding member for winding the finished wire into a single said planar coil;

a curing member curing the wound wire of each of the planar coils into a planar coil of an integral structure;

The bonding flattening component is used for bonding the plurality of solidified planar coils at fixed intervals, and heating, flattening and forming the bonded planar coils to form planar windings;

And the rolling component is used for rolling the flat winding formed by flattening into the winding.

Preferably, the winding member includes a left winding body and a right winding body which are detachably assembled and have a multi-petal structure, winding protrusions which are abutted against the left winding body are arranged at the position, close to the center, of the right winding body along the circumferential distance, and winding spaces are formed between the left winding body and the right winding body in a state that the winding protrusions are in contact with the left winding body.

Preferably, the bonding flattening component comprises an operation platform, a distance needle body which is used for sleeving and supporting the single plane coil and driving the adjacent plane coils to be connected at a distance is arranged at an interval on the operation platform, and a pressing plate which is assembled and pressed with the operation platform.

Preferably, the winding member includes a winding roller having the same inner diameter as the winding coil, and a winding tape is wound around a surface of the winding roller.

Preferably, the manufacturing device further comprises a shaping member, which is composed of a shaping shaft with the same inner diameter as the winding and a pressing block pressed on the outer peripheral surface of the winding.

A manufacturing method of a miniature motor hollow cup winding comprises the following steps:

s1, winding a finished wire on a winding member to form a single planar coil;

s2, curing the winding wires of the planar coil into an integral structure through a curing member;

s3, bonding flattening members, which are used for bonding the plurality of solidified planar coils at fixed intervals through the bonding flattening members, and heating, flattening and forming the bonded planar coils to form planar windings;

s4, coiling the flat winding formed by flattening into a winding through a coiling component.

The manufacturing device has the beneficial effects that the winding component is used for winding the finished wire into the single planar coil, and the adjacent turns of the guide are fastened in a pasting manner in the wire winding process, so that the problem that the whole specification and the running performance of the miniature motor are finally influenced due to overlarge specification of the single planar coil due to the clearance between the adjacently wound wires caused by the curling stress of the finished wire is solved.

The winding wires of each planar coil formed by winding are solidified into the planar coil with an integral structure through the solidifying component, so that the problem that the wires of the planar coil are loose in the bonding flattening and rolling process, which is described later, is avoided, and the integrity of the planar coil and the final hollow cup winding is improved.

The bonding flattening component bonds a plurality of solidified planar coils at fixed intervals, so that the connection (interval) precision of adjacent planar coils is improved, the problems that the conduction performance of the molded hollow cup winding and the overall running performance of a motor are affected due to errors in the lap joint width of the planar coils at present are solved, and the bonded planar coils are heated and flattened to be molded by the bonding flattening component to form planar windings (strip-shaped coils with integral structures), so that smooth rolling operation is facilitated.

The flat winding formed by flattening is rolled into the winding through the rolling component, namely, the lap-formed flat winding is rolled into a hollow cup winding finished product, so that the manufacturing precision of the coil can be improved in the manufacturing process of the hollow cup winding, and the running performance of the miniature motor is finally improved.

Drawings

FIG. 1 is a hollow of the present invention cup coil forming structure diagram.

Fig. 2 is a side cross-sectional view of fig. 1 in accordance with the present invention.

Fig. 3 is a plan view of the right winding body of the present invention.

Fig. 4 is a side cross-sectional view of fig. 3 in accordance with the present invention.

Fig. 5 is a perspective view of the left winding body of the present invention.

Fig. 6 is an assembled side view of the left and right windings of the present invention.

Fig. 7 is a diagram showing the wire winding performed on the winding protrusion of the right winding body according to the present invention.

Fig. 8 is a schematic view of a planar coil formed by winding on the basis of fig. 7 according to the present invention.

Fig. 9 is a diagram showing the non-attachment of adjacent wound wires due to the curling stress of the wires during the winding process of fig. 7 according to the present invention.

Fig. 10 is a view showing an enlarged outline of a planar coil wound on the basis of fig. 9 according to the present invention.

Fig. 11 is a diagram showing the structure of a wire in the process of pressing and winding by arranging a pressing block on a right winding body.

Fig. 12 is a partial side cross-sectional view of fig. 11 in accordance with the present invention.

Fig. 13 is a diagram illustrating the continuous wire winding and pressing operation of the present invention based on fig. 12.

Fig. 14 is a diagram showing the wind-heat curing operation of the planar coil integrally assembled on the curing spindle according to the present invention.

FIG. 15 is a schematic illustration of the present invention after curing of FIG. 14, with a plurality of planar coils spaced apart from one another on the operating platform.

Fig. 16 is a diagram of a plurality of planar coils spliced on the basis of fig. 15 in accordance with the present invention.

Fig. 17 is a plan view coil disassembly of the splice-cured strip structure of fig. 16 in accordance with the present invention.

Fig. 18 is a view showing that the planar coil is difficult to be smoothly fitted over the distance needle body due to the curling stress deformation of the lead wire.

Figure 19 is a diagram of the tapered configuration of the present invention with the distance needle set to facilitate planar coil nesting.

FIG. 20 is a drawing of a planar coil of the present invention sleeved over a tapered spacing needle.

Figure 21 is a schematic view of the distance needle according to the invention arranged as a hinge.

Fig. 22 is a diagram illustrating a winding operation of the adhesive-molded elongated planar coil according to the present invention.

Fig. 23 is a diagram showing a coil structure of the roll-formed coil of the present invention.

Fig. 24 is a structural illustration of a styling member of the present invention.

Fig. 25 is a shaping illustration of the present invention with a rolled coil assembled on a shaping member.

Fig. 26 is a perspective view of fig. 25 according to the present invention.

Fig. 27 is a schematic representation of the finished hollow cup coil of the present invention after shaping.

FIG. 28 is a schematic view of the present invention further providing a shaped shaft as a plurality of cone blocks and a mandrel.

Fig. 29 is a diagram illustrating the pressing operation of the cone blocks against the inner wall of the rolled coil by rotating the mandrel based on the structure of fig. 28.

FIG. 30 is a diagram of the invention after the coil is shaped, the mandrel is rotated in a reverse direction to drive the cone block to separate from the inner wall of the coil for coil disassembly.

Fig. 31 is a pictorial view of a winding member of the present invention.

FIG. 32 is a diagram of a planar coil wind-heat cured embodiment of the present invention.

FIG. 33 is a pictorial view of an adhesive flattening member of the present invention.

Fig. 34 is a physical illustration of the rolling member of the present invention.

Fig. 35 is a pictorial representation of a coreless winding of the present invention.

In the figure, 1-left winding body, 2-right winding body, a-perforation, b-winding space, 21-winding bulge, 22-single-petal body, 2 a-embedded groove, 3-pressing block, 3 a-arc structure, 4-pressure spring, 5-curing rotating shaft, 6-operating platform, 61-distance needle body, 7-winding roller, 8-winding belt, 9-shaping shaft, 91-mandrel, 92-cone block, 9 a-arc bulge, 9 b-oblique arc surface, 10-shaping pressing block, 11-hollow cup winding, 11 a-plane coil, 11 b-plane coil with strip structure and 11 c-wound hollow cup winding.

Detailed Description

In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and examples.

Referring to fig. 1-35, a device for manufacturing a miniature motor hollow cup winding is disclosed, wherein the winding is formed by bonding and rolling a plurality of planar coils with planar structures, and the planar coils are of diamond structures, as shown in fig. 8. The manufacturing device comprises a winding component, wherein the winding component is used for winding a finished wire into a single planar coil, and meanwhile, the winding component is used for enabling the adjacent turns of the wire to be fastened in a guiding way, so that the problem that gaps are reserved between the adjacent wound wires due to the curling stress of the finished wire, and the specification of the single planar coil is overlarge, so that the overall specification and the running performance of the miniature motor are finally influenced is solved.

And the solidifying component solidifies the winding wires of each planar coil formed by winding into a planar coil with an integrated structure, so that the problem that the wires of the planar coil are loose in the bonding flattening and rolling processes, which are described later, is avoided, and the integrity of the planar coil and the final hollow cup winding is improved.

The bonding flattening component is used for bonding a plurality of solidified planar coils at fixed intervals, improves the connection (interval) precision of adjacent planar coils, solves the problem that the conduction performance of the molded coreless winding and the overall running performance of the motor are affected due to errors in the lap joint width of the planar coils at present, and heats and flattens the bonded planar coils to form planar windings (strip-shaped coils with integral structures), so that smooth rolling operation is facilitated.

And the rolling component is used for rolling the flat winding formed by flattening into the winding, namely rolling the lap-formed flat winding into a hollow cup winding finished product.

Specifically, as shown in fig. 3-6, the winding member includes a left winding body 1 and a right winding body 2 which are detachably assembled and have a multi-petal structure, and the centers of the left winding body and the right winding body are provided with a through hole a for carrying out the attachment connection by penetrating through a connecting bolt (not shown in the drawings). As shown in fig. 3 to 4, 6, a winding protrusion 21 is provided at a circumferential distance from the right winding body 2 near the center thereof to be abutted against the left winding body 1, and a winding space b is formed between the left winding body 1 and the right winding body 2 in a state where the winding protrusion 21 is in contact with the left winding body 1. When the left winding body 1 and the right winding body 2 are connected by the connecting bolt, a winding space b for winding the wire is formed between the left winding body 1 and the right winding body 2 after the separation by separating the two winding protrusions 21.

As shown in fig. 3, four winding protrusions 21 are circumferentially arranged, the top ends of the winding protrusions are respectively located at four vertexes of a planar coil with a diamond structure, the size of the winding protrusions 21 is generally two to three times of the wire diameter, the height (length) is determined according to the height of the winding, the thickness is 1/2 of the thickness of the winding (the thickness of a finished winding is a double-layer structure, if the thickness of the winding is 2mm, the thickness of a single-layer winding planar coil (flap) is 1 mm), and the winding space b is half of the thickness of the winding. When the planar coil is wound, one end of the wire is fixed, then the winding space b is used for carrying out circumferential winding by taking the top end of the winding bulge 21 as a contact point, the planar coil is formed after winding for a plurality of circles, then the left winding body 1 and the right winding body 2 are disassembled, and the single planar coil formed by winding can be taken out and unloaded to carry out the winding of the next planar coil.

In order to solve the problem that the adjacent winding wires are not tightly adhered when the planar coil is wound due to the curling stress of the finished wire, as shown in fig. 3, the right winding body 2 is provided with a plurality of single-petal bodies 22 along the circumferential direction, and pressing blocks 3 for pressing the winding wires are arranged on the single-petal bodies 22 which are symmetrical with each other at the center of the right winding body 2. As shown in fig. 11, the pressing block 3 is arranged on the single symmetrical single-petal body 22, further, in order to enable the pressing block 3 to be continuously pressed on a wire with increased winding turns, as shown in fig. 11, an embedded groove 2a for moving and embedding the pressing block 3 is preferably arranged on the single-petal body 22, and a pressure spring 4 connected with the pressing block 3 is arranged in the embedded groove 2 a. As shown in fig. 12 to 13, after each turn of the wire is wound, the pressing block 3 is driven to press against the wire by the pressure springs 4 at both sides, and the wire is tensioned during the wire winding process to eliminate the curling stress, after the wire is tensioned and wound, the wound wire is ensured to be attached by the pressing block 3, so that the problems of loosening of the wound wire caused by the rotation of the wire and non-adhesion of the winding caused by the curling stress during the wire winding process are avoided. In order to improve the pressing force to the winding wire, the other single-petal body 22 can be further provided with an embedded groove 2a, a pressing block 3 and a pressure spring 4, and the circumferential multi-point pressing action to the winding coil is realized through a plurality of pressing points so as to further improve the pressing action to the winding wire.

Since the pressing block 3 is pressed and stuck on each winding wire by the action force of the pressure spring 4, when the wire is continuously wound, the pressing block 3 can block the newly wound wire during winding, and winding of the wire cannot be smoothly performed again, the pressing block 3 needs to be driven to reversely extrude the pressure spring 4 to flow out of the winding gap, but in the operation, the pressing block 3 extrudes the pressure spring 4 to be separated from the wound wire, so that the pressing and sticking action on the wire is cancelled, and further, in order to solve the problem, as shown in fig. 12-13, the surface of the pressing block 3, which is close to the wire, is provided with an arc-shaped structure 3a with gradually increased height. When the pressing block 3 is used for pressing and pasting the wound wire through the pressure spring 4, as shown in a broken line winding path in fig. 12, the wire is enabled to contact the surface of the pressing block 3 of the arc-shaped structure 3a after entering the winding space b and slide to the end part of the pressing block 3 along with the surface of the arc-shaped structure 3a, then the current wound wire is enabled to be embedded between the wound wire and the end surface of the pressing block 3 by utilizing the circular structure of the coil in the direction shown by a transverse arrow in fig. 13, the pressing block 3 is driven to reversely extrude the pressure spring 4 to move backwards (shown by a vertical arrow in the figure), and the new winding operation of the pressing block 3 on the wound and pressed wire is realized in the embedded winding mode, so that the wound wire is always in a pressed and pasting state, and loosening of the wound wire is avoided. The winding component can wind the finished wire to the planar coil which has consistent shape and is tightly pressed by the wire.

After the above-mentioned forming of a plurality of planar coils, since the coils are still formed by winding the wire for a plurality of turns, in order to avoid the problem of loosening the wire after the planar coils are disassembled, the curing member preferably, as shown in fig. 14, wears the planar coils wound and formed on the plurality of winding members through the perforations a of the left winding body 1 and the right winding body 2 on the curing spindle 5 in a state of not being disassembled, tightly pushes the outer winding members against the nuts, and assembles the curing spindle 5 on the rotating device to rotate, and uses the hot air source to wind and heat the planar coils during the rotation, while the wire preferably adopts the self-adhesive wire, under the wind and heat effect, the adjacent wires wound by each planar coil are mutually bonded and cured, and the planar coil with an integral structure can be formed after cooling.

On the basis of the above-mentioned formed planar coils, it is necessary to connect a plurality of planar coils by bonding, as shown in fig. 15, the bonding and flattening member includes an operation platform 6 on which spacing pins 61 for sleeving and supporting the individual planar coils and for driving the adjacent planar coils to be spaced apart from each other are provided. Wherein adjacent distance needle bodies 61 are positioned at symmetrical inner vertexes of the planar coils, as shown in fig. 15, a single planar coil is sleeved on the adjacent distance needle bodies 61 to realize sleeving of the single planar coil, then as shown in fig. 16, a plurality of planar coils are assembled and spliced at intervals through the distance needle bodies 61, before splicing, glue is applied to the joint position of each planar coil, and then the plurality of planar coils can be bonded into an integral structure through glue application, as shown in fig. 17. In order to further realize the shaping of each planar coil, the distance needle body 61 can be arranged in the vertical direction of the planar coil again, so that the shaping effect of the planar coil can be further improved through the distance needle body 61 at four vertexes in the planar coil.

In order to bond and fasten the planar spacing and the bonded plurality of planar coils, the bonding flattening member may further include a pressing plate (not shown in the figure) assembled with the operation platform 6 and pressed against the operation platform, the pressing plate has a pinhole through which the spacing needle 61 passes, the pressing plate can be pressed against the upper surface of the planar coils by passing the spacing needle 61 of the operation platform 6 through the pinhole, and the pressing plate is preferably connected with the operation platform 6 by a bolt, so that the bonding tightness and the surface flatness of the plurality of planar coils can be improved under the pressing action for a certain period of time.

After the wire is wound into the planar coil by the winding member and removed from the winding member, there is a deformation effect of the removed planar coil due to the curling effect of the wire, such as a reduction in the distance between the transversely opposite inner vertices, and the wire cannot be smoothly sleeved on the adjacent distance needle 61 on the operation platform 6 after the reduction (the coil at the right inner vertex contacts the top end surface of the distance needle 61 as shown in fig. 18), so that the problem is solved, the distance needle 61 at intervals is provided with a tapered structure, the outer diameter of the distance needle 61 of which gradually decreases from the lower part to the upper part, and the distance between the top end of the distance needle 61 and the adjacent top end of the distance needle 61 is smaller than the distance at the inner vertex of the planar coil, thereby facilitating the insertion of the deformed planar coil on the adjacent distance needle 61 and solving the defect that the planar coil is difficult to be smoothly inserted on the distance needle 61 after the removal. The bottom of the distance needle body 61 with the conical structure is of a normal cylindrical structure, so that the problem that the planar coil slides upwards after being sleeved due to the conical structure as a whole is avoided.

To further facilitate nesting of the deformed planar coils, the needle of each conical structure is hingedly connected in reset with the operating platform 6 toward the adjacent spaced needle 61, as shown in fig. 21. The reset connection is a bidirectional torsion spring (not shown in the figure) arranged at the hinge position of the distance needle body 61, in the state that the planar coil is not sleeved, the distance needle body 61 is driven to be in a vertical state through the bidirectional torsion spring, in the process of sleeved deformation of the planar coil, as shown in fig. 21, the distance needle body 61 is driven to overcome the acting force of the bidirectional torsion spring, so that the distance needle body 61 deflects, the top distance between the distance needle body 61 and the adjacent distance needle body 61 can be greatly reduced after deflection, the deformed planar coil is smoothly sleeved, then the distance needle body 61 is driven to be reset to be in a vertical state, and the hinged distance needle body 61 is pulled and balanced to be in a vertical state from the left side and the right side through the adjacently sleeved planar coil. The above bonding and flattening member can distance and bond and flatten the plurality of planar coils into the planar coil 11b having a long structure.

In order to wind the planar coil 11b of the above-described bonded long structure into a hollow cup winding of a cylindrical structure, as shown in fig. 22, the winding member includes a winding roller having the same inner diameter as the winding roller, and a winding belt 8 is wound around the surface of the winding roller 7. In operation, as shown in fig. 22, the planar coil 11b of a long strip structure is placed on the horizontal surface of the winding belt 8, then the planar coil is driven to be wound on the winding roller 7 by the movement of the winding belt 8 in the arrow direction in the drawing, and after the planar coil is wound on the winding roller 7, the winding belt 8 is reciprocated so that the planar coil is wound on the winding roller 7 for a plurality of times, and after the winding, the hollow cup winding of a cylindrical structure is formed. The winding roller 7 is preferably a sliding structure with adjustable level, after the planar coil is wound and formed, the winding roller 7 is driven to displace and then separated from the winding belt 8, so that the formed coreless winding can be removed from one side of the winding roller 7.

The end of the wound coreless coil is not bonded, and thus, in order to bond the end of the wound coreless coil, the manufacturing apparatus further includes a shaping member, as shown in fig. 24 to 25, which is composed of a shaping shaft 9 having the same inner diameter as the winding and a shaping pressing block 10 pressed against the outer circumferential surface of the winding. The coiled cylinder coil is sleeved on the shaping shaft 9, the joint end of the coil is coated with adhesive, and 10 coils are pressed on the shaping shaft 9 through a plurality of shaping pressing blocks, after a certain curing time, the joint end of the coiled coil can be bonded, irregular shapes in the coil coiling process are eliminated, and the effects of bonding and shaping the end of the coil (improving the roundness and the inner diameter and outer diameter of the hollow cup motor) are realized. The shaping press 10 can be clamped on a three-jaw chuck mechanism of a machine tool for bonding shaping.

In order to solve the problem, as shown in fig. 28, the shaping shaft 9 comprises a mandrel 91, a plurality of cone blocks 92 are axially distributed on the outer peripheral surface of the mandrel 91, and gaps are reserved between each cone block 92, because the coil is tightly attached to the surface of the shaping shaft 9 after the coil is reduced under the shaping action of the mechanical external force of the shaping press block 10, and thus is difficult to detach from the shaping shaft 9 after shaping is completed. When the coil is detached, the mandrel 91 can be preferentially detached axially from the cone blocks 92, and then gaps are reserved among the cone blocks 92, so that the cone blocks 92 can move towards the center direction, each cone block 92 is separated from close contact with the inner wall of the hollow cup coil, the shaped coil can be smoothly detached, and the abrasion and deformation problems existing in the state of close contact with the shaping shaft 9 are avoided.

Since the plurality of cone blocks 92 are pressed against the mandrel 91 during the coil shaping process, there is still a large frictional resistance when the mandrel 91 is disassembled in advance, and abrasion of the surface of the mandrel 91 against which the cone blocks 92 are pressed is also caused by the external force of disassembly, in order to solve this problem, as shown in fig. 28, arc-shaped protrusions 9a having a height gradually increasing in the circumferential direction are provided on the circumferential surface of the mandrel 91 at intervals, and the inner end surface of each cone block 92 is provided as an inclined arc surface 9b which is in flat contact with the arc-shaped protrusions 9 a. The principle of action is shown in fig. 29, when the coil is set in the shape forming operation, the coil is first sleeved on the plurality of cone blocks 92, then the mandrel 91 is rotated in the direction shown by the arc arrow in the figure, the mandrel 91 contacts the inclined arc surface 9b of the cone block 92 by the arc-shaped protrusions 9a with the gradually increased surface height, and the distance between the inclined arc surface 9b and the surface of the arc-shaped protrusions 9a is gradually reduced along the rotation direction of the arc-shaped protrusions 9a because the height of the arc-shaped protrusions 9a is gradually increased when the arc-shaped protrusions 9a rotate and the distance between the corresponding positions of the inclined arc surfaces 9b is gradually reduced, so that the coil is pressed on the setting pressing block 10 by driving each cone block 92 to move outwards (shown by the straight arrow in fig. 29) through the arc-shaped protrusions 9 a. After the bonding and shaping are completed, the mandrel 91 is reversely rotated after the shaping pressing block 10 is disassembled, so that each cone block 92 radially retracts, as shown by the straight arrow in fig. 30, and each cone block 92 can be separated from contact with the inner wall of the cylindrical coil, so that the cylindrical coil can be smoothly removed from the cone block 92, and the forming quality of the hollow cup winding can be further improved through the manufacturing device.

According to the manufacturing device, the application also provides a manufacturing method of the miniature motor hollow cup winding, which comprises the following steps:

S1, winding a finished wire on a winding member to form a single planar coil, wherein the specific operation is as follows:

When the planar coil is wound, one end of the wire is fixed, then the winding space b is used for carrying out circumferential winding by taking the top end of the winding bulge 21 as a contact point, and the winding is tightly pressed by the shaping pressing block 10 for one circle, and the planar coil is formed after winding for a plurality of circles.

S2, curing the winding wires of the planar coil into an integrated structure through a curing component, wherein the integrated structure is specifically operated as follows:

The plurality of winding members and the wound planar coils are sleeved on the solidification rotating shaft 5 to rotate, so that adjacent wires wound by each planar coil are mutually adhered and solidified, and the planar coil with an integrated structure can be formed after cooling.

S3, bonding flattening members, which are used for bonding a plurality of cured planar coils at fixed intervals through the bonding flattening members, and heating, flattening and forming the bonded planar coils to form planar windings, wherein the specific operation is as follows:

the single planar coil is sleeved on the adjacent distance needle bodies 61, if the planar coil deforms, the corresponding distance needle bodies 61 can be driven to rotate, so that the planar coil is smoothly sleeved, after the distance sleeve is completed, the pressing plate is connected with the operation platform 6, and the planar coils are flattened and solidified to form the planar coil 11b with the strip structure.

S4, coiling the flat winding formed by flattening into a winding through a coiling component, wherein the specific operation is as follows:

The flat coil 11b of a long strip structure is placed on the horizontal plane of the winding belt 8, then the flat coil is driven to be wound on the winding roller 7 by the movement of the winding belt 8 in the arrow direction in the figure, and after the flat coil is wound on the winding roller 7, the winding belt 8 is reciprocated, so that the flat coil is wound on the winding roller 7 for a plurality of times, and after the winding is shaped, the hollow cup winding of a cylindrical structure is formed. The winding roller 7 is preferably a sliding structure with adjustable level, after the planar coil is wound and formed, the winding roller 7 is driven to displace and then separated from the winding belt 8, so that the formed coreless winding can be removed from one side of the winding roller 7.

S5, the cylindrical coil after being disassembled and rolled is sleeved on the shaping shaft 9, the end part of the rolled coil is adhered and shaped after being clamped from the outer side through the shaping pressing block 10, and after the shaping is finished, the peripheral surface of the cone block 92 is separated from contact with the inner wall of the coil through rotating the mandrel 91 of the shaping shaft 9, so that the winding of the hollow cup structure is formed.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. The present invention is subject to various changes and modifications without departing from the spirit and scope thereof, and such changes and modifications fall within the scope of the invention as hereinafter claimed.

Claims

1. A manufacturing device for a hollow cup winding of a micro motor, wherein the winding is formed by bonding and rolling a plurality of planar coils of a planar structure, wherein the manufacturing device comprises:

A winding member, which is used to wind the finished wire into a single planar coil;

A curing component, curing the wound wires of each of the planar coils into a planar coil with an integrated structure;

A bonding and flattening component is used to bond the plurality of solidified planar coils at a fixed distance, and heat and flatten the bonded planar coils to form a planar winding;

The rolling component is used for rolling the flattened planar winding into the winding.

2. The production device according to claim 1 is characterized in that: the winding component includes a left winding body and a right winding body which are detachably assembled and have a multi-petal structure, and a winding protrusion that abuts against the left winding body is arranged at a circumferential interval near the center of the right winding body, and the winding protrusion is in contact with the left winding body, forming a winding space between the left winding body and the right winding body.

3. The manufacturing device according to claim 2 is characterized in that: the bonding and flattening component includes an operating platform, on which spacing needles are arranged at intervals to support the individual planar coils and drive adjacent planar coils to be connected at a fixed distance, and also includes a pressure plate assembled and pressed against the operating platform.

4. The manufacturing device according to claim 3, characterized in that the winding member includes a winding roller with the same inner diameter as the winding, and a winding tape is wound on the surface of the winding roller.

5. The manufacturing device according to claim 4 is characterized in that: the manufacturing device also includes a shaping component, which is composed of a shaping shaft with the same inner diameter as the winding, and a pressing block pressed against the outer peripheral surface of the winding.

6. A method for manufacturing a micro motor hollow cup winding, characterized in that it comprises the following steps:

S1, winding the finished wire on the winding member to form a single planar coil;

S2, curing the winding wire of the planar coil into an integrated structure through a curing component;

S3, a bonding and flattening component, used to bond the plurality of solidified planar coils at a fixed distance through the bonding and flattening component, and heat and flatten the bonded planar coils to form a planar winding;

S4, rolling the flattened planar winding into a winding by a rolling member.

7. The manufacturing method according to claim 6 is characterized in that: the winding component includes a left winding body and a right winding body which are detachably assembled and have a multi-petal structure, and a winding protrusion that abuts against the left winding body is arranged at a circumferential interval near the center of the right winding body, and the winding protrusion is in contact with the left winding body, forming a winding space between the left winding body and the right winding body.

8. The manufacturing method according to claim 7 is characterized in that: the bonding and flattening component includes an operating platform, on which spacing needles are arranged at intervals to support the individual planar coils and drive adjacent planar coils to be connected at a fixed distance, and also includes a pressure plate assembled and pressed against the operating platform.

9. The manufacturing method according to claim 8, characterized in that the winding member comprises a winding roller having the same inner diameter as the winding, and a winding tape is wound on the surface of the winding roller.

10. The manufacturing method according to claim 9, characterized in that: the manufacturing device further comprises a shaping member, which is composed of a shaping shaft having the same inner diameter as the winding, and a pressing block pressed against the outer peripheral surface of the winding.