Manufacturing device and manufacturing method for hollow cup winding of micro motor

Abstract

The invention discloses a manufacturing device and a manufacturing method of a micro motor coreless winding. The manufacturing device comprises a winding component, a curing component, a bonding and flattening component, a rolling component and the like. The winding component is used for winding the finished lead into a single planar coil, so that the leads of adjacent turns are attached and fastened, and the problem that the size of the single planar coil is too large to finally affect the overall size and running performance of the micro motor due to the fact that a gap is reserved between the adjacent wound leads due to the curling stress of the finished lead is solved. The plurality of cured planar coils are bonded at fixed intervals through the bonding and flattening component, so that the connection (interval) precision of the adjacent planar coils is improved, and the problem that the conduction performance of a formed hollow cup winding and the overall running performance of a motor are affected due to the fact that errors exist in the overlapping width of the planar coils at present is solved. Therefore, the manufacturing precision of the coil can be improved in the manufacturing process of the hollow cup winding, and the running performance of the micro motor is finally improved.

Description

Technical Field

[0001] The invention relates to the technical field of micro motor manufacturing, and in particular to a manufacturing device and a manufacturing method for a micro motor hollow cup winding. Background Art

[0002] Micro motors are electric motors with relatively small size and power, usually used to drive small mechanical equipment or as actuators in control systems. Due to the miniaturization of micro motors, they are widely used in medical, aviation, automotive, electronics and other fields.

[0003] Hollow cup winding is a special winding form in micro motors. Its characteristic is that the winding coil is in the shape of a hollow cup. This winding form has the advantages of simple structure, light weight, and small moment of inertia. It is particularly suitable for micro motors that require fast response and high-precision control. Therefore, hollow cup winding is currently used more in micro motors.

[0004] At present, the production process of hollow cup winding usually includes coil design, winding, insulation treatment, shaping and packaging, etc., among which coil design is to design appropriate coil shape, number of turns, wire specifications and other parameters according to the performance requirements of the motor. Since the hollow cup winding is a cylindrical structure, there is no internal and external support after forming. Therefore, it is usually adopted to bond and roll multiple wound planar coils into a hollow cup coil with a cylindrical structure, and a single planar coil can usually be selected from rectangular, square and other structures. After bonding and forming, it has a higher surface strength than the structure of spirally winding the wire. Compared with spiral winding, the wire diameter and the overall specifications of the hollow cup winding can be reduced, so that the micro motor can be further miniaturized. In the high-speed rotation of the micro motor in the later stage, the higher body strength of the hollow cup motor can ensure the operation performance of the micro motor. Therefore, non-spirally wound hollow cup motor windings are widely used in micro motors.

[0005] At present, in the winding process of hollow cup winding, the single coil of the plane structure is wound first, and then the single coil is connected to form a coil of long strip structure, and the long strip coil is rolled to form the hollow cup winding. However, due to the high performance index requirements of micro motors, there are still the following deficiencies in the coil production process:

[0006] 1) In the process of manually winding a single coil, since the finished wire is usually a reel structure, when the wire is unwound and wound, due to the curling stress of the wire, the wires between different turns of the planar coil cannot be close together during winding, which leads to the following problems: Figure 9-10 The outward bending shown in the figure causes the wires wound later to bend outward uniformly, resulting in gaps between the planar coils and the problem of the coils being too large.

[0007] 2) There are connection (spacing) errors in the bonding process of multiple planar coils after winding, which leads to different overlap widths of adjacent planar coils, affecting the conduction performance of the hollow cup winding after forming and the overall operating performance of the motor.

[0008] Therefore, in the process of manufacturing hollow cup windings of micro motors, the quality control of the manufacturing process needs to be further improved, thereby improving the operating performance of the micro motors. Summary of the invention

[0009] In view of the above problems, the present invention aims to provide a manufacturing device and method for hollow cup windings of micro motors. The manufacturing device solves the problem that gaps are left between adjacent wound wires due to the curling stress of the finished wires, resulting in excessive specifications of a single planar coil, which ultimately affects the overall specifications and operating performance of the micro motor. And the bonding and flattening components solve the problem that the conduction performance of the hollow cup winding after forming and the overall operating performance of the motor are affected by the error in the overlap width of the planar coil.

[0010] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a manufacturing device for hollow cup winding of a micro motor, wherein the winding is formed by bonding and rolling a plurality of planar coils of planar structure, and the manufacturing device comprises:

[0011] A winding member, which is used to wind the finished wire into a single planar coil;

[0012] A curing component, curing the wound wires of each of the planar coils into a planar coil with an integrated structure;

[0013] 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;

[0014] The rolling component is used for rolling the flattened planar winding into the winding.

[0015] Preferably, the winding structure includes a left winding body and a right winding body which are detachably assembled and have a multi-petal structure. A winding protrusion that abuts against the left winding body is arranged at a circumferential interval near the center of the right winding body. When the winding protrusion is in contact with the left winding body, a winding space is formed between the left winding body and the right winding body.

[0016] Preferably, the bonding and flattening component includes an operating platform, on which spacing needles are arranged at intervals for supporting the sleeves of individual planar coils and driving adjacent planar coils to be spaced apart from each other, and also includes a pressing plate assembled and pressed against the operating platform.

[0017] Preferably, the winding member comprises a winding roller having the same inner diameter as the winding, and a winding belt is wound on the surface of the winding roller.

[0018] Preferably, 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.

[0019] A method for manufacturing a micro motor hollow cup winding comprises the following steps:

[0020] S1, winding the finished wire on the winding member to form a single planar coil;

[0021] S2, curing the winding wire of the planar coil into an integrated structure through a curing component;

[0022] 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;

[0023] S4, rolling the flattened planar winding into a winding by a rolling member.

[0024] Preferably, the winding structure includes a left winding body and a right winding body which are detachably assembled and have a multi-petal structure. A winding protrusion that abuts against the left winding body is arranged at a circumferential interval near the center of the right winding body. When the winding protrusion is in contact with the left winding body, a winding space is formed between the left winding body and the right winding body.

[0025] Preferably, the bonding and flattening component includes an operating platform, on which spacing needles are arranged at intervals for supporting the sleeves of individual planar coils and driving adjacent planar coils to be spaced apart from each other, and also includes a pressing plate assembled and pressed against the operating platform.

[0026] Preferably, the winding member comprises a winding roller having the same inner diameter as the winding, and a winding belt is wound on the surface of the winding roller.

[0027] Preferably, 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.

[0028] The beneficial effect of the present invention is that the manufacturing device is used to wind the finished wire into a single planar coil through a winding component. During the wire winding process, the guides of adjacent turns are tightly attached to each other to solve the problem that the curling stress of the finished wire causes gaps between adjacent wound wires, resulting in excessive specifications of the single planar coil and ultimately affecting the overall specifications and operating performance of the micro motor.

[0029] The winding wire of each planar coil is solidified into a planar coil with an integrated structure by a solidifying component, thereby preventing the wire of the planar coil from loosening during the bonding, flattening and rolling process described later, and improving the integrity of the planar coil and the final hollow cup winding.

[0030] By using a bonding and flattening component to bond multiple solidified planar coils at a fixed distance, the connection (spacing) accuracy of adjacent planar coils is improved, and the current problem of errors in the overlap width of the planar coils affecting the conduction performance of the hollow cup winding after molding and the overall operating performance of the motor is solved. In addition, the bonding and flattening component heats and flattens the bonded planar coils to form a planar winding (a long strip coil with a molded overall structure), which facilitates the smooth rolling operation described later.

[0031] The flattened planar winding is rolled into the winding by a rolling component, that is, the overlapped planar winding is rolled into a hollow cup winding product, thereby improving the production accuracy of the coil during the hollow cup winding production process and ultimately improving the operating performance of the micro motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural diagram of the hollow cup coil forming of the present invention.

[0033] Figure 2 For the present invention Figure 1 Side section view.

[0034] Figure 3 It is a diagrammatic view of the planar structure of the right winding body of the present invention.

[0035] Figure 4 For the present invention Figure 3 Side section view.

[0036] Figure 5 It is a three-dimensional structural diagram of the left winding body of the present invention.

[0037] Figure 6 It is a side view of the assembly of the left winding body and the right winding body of the present invention.

[0038] Figure 7 The present invention is shown in figure, that the wire winding is performed on the winding protrusion of the right winding body.

[0039] Figure 8 For the present invention Figure 7 Illustration of the planar coil structure wound on the basis.

[0040] Fig. 9 For the present invention Figure 7 The figure shows that the adjacent wound wires are not in contact with each other due to the curling stress of the wires during the winding process.

[0041] Fig.10 For the present invention Fig. 9 The dimensions of the planar coil wound on the base are enlarged as shown in the figure.

[0042] Fig.11 This is a diagrammatic illustration of the conductor structure during the winding process in which a pressing block is arranged on the right winding body of the present invention.

[0043] Fig.12 For the present invention Fig.11 Partial side section view.

[0044] Fig.13 For the present invention Fig.12 The wire winding and pressing operations are continued on this basis.

[0045] Fig.14 This is a diagram showing the operation of assembling the planar coil as a whole on the curing shaft for wind heat curing according to the present invention.

[0046] Fig.15 For the present invention Fig.14 After curing is completed, multiple planar coils are connected at a fixed distance on the operating platform as shown in the diagram.

[0047] Fig.16 For the present invention Fig.15 Multiple planar coils are spliced ​​together on the basis.

[0048] Fig.17 For the present invention, Fig.16 Illustration of the disassembly of a planar coil with a long strip structure that has been spliced ​​and solidified.

[0049] Fig.18 This is shown in the figure, because the planar coil of the present invention is deformed by the curling stress of the conductor and is difficult to be smoothly sleeved on the fixed distance needle body.

[0050] Fig.19 This is a diagram showing a conical structure in which the distance needle body is arranged to be convenient for the flat coil to be set.

[0051] Fig. 20 The diagram shows that the planar coil of the present invention is sleeved on a distance needle body with a conical structure.

[0052] Fig.21 The present invention shows that the distance needle body is arranged as a hinged structure.

[0053] Fig. 22 The present invention is a diagram showing the rolling operation of the adhesively formed long strip planar coil.

[0054] Fig.23 It is a schematic diagram of the coil structure formed by rolling of the present invention.

[0055] Fig.24 It is a diagrammatic illustration of the structure of the shaping component of the present invention.

[0056] Fig.25 The present invention is to assemble the wound coil on the shaping component to shape the diagram.

[0057] Fig.26 For the present invention Fig.25 Schematic diagram of the three-dimensional structure.

[0058] Fig. 27 This is a diagram of the finished hollow cup coil of the present invention after finalization.

[0059] Fig.28 The present invention further illustrates that the shaping shaft is configured as a plurality of cone blocks and a core shaft structure.

[0060] Fig.29 For the present invention Fig.28 The rotating mandrel on the structural base drives the cone block to press against the inner wall of the wound coil.

[0061] Fig.30 This is a diagram showing the coil disassembly process in which the core shaft is rotated in the reverse direction after the coil is shaped to drive the cone block to separate from the inner wall of the coil.

[0062] Fig.31 It is a physical illustration of the winding structure of the present invention.

[0063] Fig.32 This is a physical illustration of the wind-heat curing of the planar coil of the present invention.

[0064] Fig.33 It is a physical illustration of the bonding and flattening component of the present invention.

[0065] Fig.34 It is a physical illustration of the rolled component of the present invention.

[0066] Fig.35 This is a physical illustration of the hollow cup winding of the present invention.

[0067] In the figure: 1-left winding body; 2-right winding body; a-perforation; b-winding space; 21-winding protrusion; 22-single petal body; 2a-embedded groove; 3-pressing block; 3a-arc structure; 4-compression spring; 5-curing shaft; 6-operating platform; 61-distance needle body; 7-winding roller; 8-winding belt; 9-shaping shaft; 91-core shaft; 92-conical block; 9a-arc protrusion; 9b-oblique arc surface; 10-shaping pressing block; 11-hollow cup winding; 11a-planar coil; 11b-planar coil with long strip structure; 11c-wound hollow cup winding. DETAILED DESCRIPTION

[0068] 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 in conjunction with the accompanying drawings and embodiments.

[0069] See attached Figures 1 to 35 A manufacturing device for a hollow cup winding of a micro motor is shown, wherein the winding is formed by bonding and rolling a plurality of planar coils of a planar structure. The planar coil described in the present application is a diamond structure, such as Figure 8 The manufacturing device includes a winding component, which is used to wind the finished wire into a single planar coil. At the same time, the winding component makes the guides of adjacent turns close to each other during the wire winding process, so as to solve the problem that the curling stress of the finished wire causes gaps between adjacent wound wires, resulting in excessive specifications of the single planar coil, which ultimately affects the overall specifications and operating performance of the micro motor.

[0070] The curing component solidifies the wound wire of each planar coil formed by the winding into a planar coil with an integrated structure, thereby preventing the wire of the planar coil from becoming loose during the bonding, flattening and rolling process described later, and improving the integrity of the planar coil and the final hollow cup winding.

[0071] The bonding and flattening component is used to bond the plurality of solidified planar coils at fixed distances to improve the connection (spacing) accuracy of adjacent planar coils, and solve the problem that the conductive performance of the hollow cup winding after molding and the overall operating performance of the motor are affected by the error in the overlap width of the planar coils. The bonding and flattening component heats and flattens the bonded planar coils to form a planar winding (a long strip coil with an integral structure), which facilitates the smooth rolling operation described later.

[0072] The rolling component is used to roll the flattened planar winding into the winding, that is, to roll the overlapped planar winding into a hollow cup winding product.

[0073] Specifically, Figure 3-6 As shown, the winding member comprises a left winding body 1 and a right winding body 2 which are detachably assembled and have a multi-petal structure, and both of them have a through hole a in the center for connecting each other by passing a connecting bolt (not shown in the figure). Figure 3-4 As shown in Figures 6 and 7, a winding protrusion 21 is provided near the center of the right winding body 2 along the circumferential spacing to abut against the left winding body 1. When the winding protrusion 21 is in contact with the left winding body 1, a winding space b is formed between the left winding body 1 and the right winding body 2. When the left winding body 1 and the right winding body 2 are connected by the connecting bolt, the winding protrusion 21 separates the two, and after the separation, a winding space b for winding a wire is formed between the left winding body 1 and the right winding body 2.

[0074] like Figure 3As shown, there are four winding protrusions 21 arranged circumferentially, and the top ends are respectively located at the four vertices of the planar coil of the diamond structure, and the size of the winding protrusion 21 is generally two to three times the wire diameter, and the height (length) is determined by the height of the winding, and the thickness is 1 / 2 of the winding thickness (the finished winding is a double-layer structure, if the winding thickness is 2mm, the thickness of the single-layer wound planar coil (petal) is 1mm), and the winding space b is half of the winding thickness. When winding the planar coil, fix one end of the wire, and then perform circumferential winding in the winding space b with the top end of the winding protrusion 21 as the contact point. After winding for multiple turns, the planar coil is formed, and then the left winding body 1 and the right winding body 2 are disassembled, and the wound single planar coil can be removed, and the next planar coil can be wound.

[0075] In order to solve the problem that the adjacent winding wires are not close together when the planar coil is wound due to the curling stress of the finished wire, Figure 3 As shown, the right winding body 2 has a plurality of single-petal bodies 22 along the circumferential direction, and a pressing block 3 for pressing the wound wire is arranged on the single-petal bodies 22 symmetrically passing through the center of the right winding body 2. Fig.11 As shown, a pressing block 3 is arranged on a single symmetrical single-petal body 22, and further, the pressing block 3 can be continuously pressed against the wire with increasing winding turns, such as Fig.11 As shown, preferably, an embedding groove 2a for movably embedding the pressure block 3 is provided on the single-petal body 22, and a compression spring 4 connected to the pressure block 3 is arranged in the embedding groove 2a. Figure 12-13 As shown, after each turn of the wire is wound, the compression block 3 is driven to press against the wire by the compression springs 4 on both sides, and during the winding process, the wire is tightened to eliminate its curling stress. After the tightening and winding, the compression of the compression block 3 ensures that the wound wire is close to each other, avoiding the problem of the winding wire being loose due to the rotation of the wire during the winding process, and the problem of the winding not being close due to the curling stress. In order to improve the pressing force on the wound wire, the other single-valve body 22 can be further provided with an embedded groove 2a, a compression block 3 and a compression spring 4, and a plurality of pressing points can be used to achieve a multi-point pressing effect on the circumference of the winding coil, so as to further improve the pressing effect on the wound wire.

[0076] Since the pressure block 3 is pressed against each winding wire by the force of the compression spring 4, when the wire is continued to be wound, the pressure block 3 will block the newly wound wire during winding, and the wire cannot be wound smoothly again. It is necessary to drive the pressure block 3 to reversely squeeze the compression spring 4 to flow out of the winding gap. However, in this operation, the pressure block 3 squeezes the compression spring 4 to separate from the wound wire, and the pressing effect on the wire is cancelled. In order to solve this problem, Figure 12-13 As shown, the surface of the pressing block 3 close to the wire is set to an arc-shaped structure 3a with increasing height. On the basis of the pressing block 3 pressing the already wound wire through the compression spring 4, when the wire is wound again, as shown in FIG. Fig.12 As shown in the dotted winding path, the wire contacts the surface of the pressing block 3 of the arc structure 3a after entering the winding space b, and slides along the surface of the arc structure 3a to the end of the pressing block 3, and then utilizes the circular structure of the coil, as shown in FIG. Fig.13 The pressure block 3 is pressed downward in the direction indicated by the horizontal arrow, so that the currently wound wire is embedded between the wound wire and the end face of the pressing block 3, and the pressing block 3 is driven to reversely squeeze the compression spring 4 and move backward (as indicated by the vertical arrow in the figure). In this embedded winding manner, the pressing block 3 can rewind the new wire on the wound and pressed wire, and ensure that the wound wire is always in a pressed state to prevent the wound wire from loosening. The above winding component can realize the winding of the finished wire into a planar coil with a consistent shape and tight wire pressing.

[0077] After forming a plurality of planar coils as described above, since the coils are still formed by winding a plurality of turns of wire, in order to avoid the problem of the wires being loose after the planar coils are disassembled, the curing member is preferably as follows: Fig.14 As shown, the planar coil formed by winding on multiple winding members is passed through the through holes a of the left winding body 1 and the right winding body 2 on the curing shaft 5 without being disassembled, and the outer winding members are tightened by nuts. The curing shaft 5 is assembled on a rotating device for rotation. During the rotation, a hot air source is used to heat the planar coil, and the wire is preferably a self-adhesive wire. Under the action of the wind heat, the adjacent wires wound on each planar coil are bonded and cured to each other, and a planar coil with an integrated structure can be formed after cooling.

[0078] On the basis of the above-mentioned formed planar coil, multiple planar coils need to be bonded and connected, such as Fig.15 As shown, the bonding and flattening component includes an operating platform 6, on which are arranged spaced apart distance pins 61 for supporting the single planar coil and driving the adjacent planar coils to be spaced apart. The adjacent distance pins 61 are located at the inner vertices of the symmetrical planar coils, as shown in FIG. Fig.15 As shown, a single planar coil is sleeved on the adjacent distance needle body 61 to achieve the sleeve of a single planar coil, and then as shown Fig.16 As shown, multiple planar coils are assembled and spliced ​​at intervals through a spacing needle body 61. Before splicing, glue is applied at the joint position of each planar coil, and then the multiple planar coils can be bonded into an integral structure by gluing. Fig.17 To further achieve shaping of each planar coil, a distance pin 61 may be arranged again in the vertical direction of the planar coil, so that the four vertices in the planar coil are all provided with the distance pin 61 to further enhance the shaping effect.

[0079] In order to bond and tighten the planar coils that are spaced and glued together, the bonding and flattening component may also include a pressing plate (not shown in the figure) assembled and pressed against the operating platform 6. The pressing plate has a pinhole through which the spacing needle body 61 passes. By passing the spacing needle body 61 of the operating platform 6 through the pinhole, the pressing plate can be pressed against the upper surface of the planar coil, and the pressing plate is preferably connected to the operating platform 6 by bolts. Under the pressing effect for a certain period of time, the tightness of the bonding and the surface flatness of the multiple planar coils can be improved.

[0080] After the wire is wound into a planar coil by the winding member and removed from the winding member, the planar coil may be deformed due to the curling of the wire, such as shortening the distance between the inner vertices in the horizontal direction. After shortening, the planar coil cannot be smoothly mounted on the adjacent distance needles 61 on the operating platform 6 (e.g., Fig.18 The coil at the inner vertex on the right side is in contact with the top surface of the distance needle body 61, so in order to solve this problem, as shown in FIG. Fig.19 As shown, the spaced distance pins 61 are set to a conical structure, and the distance pins 61 of the conical structure have an outer diameter that gradually decreases from the bottom to the top, so that the outer distance between the top of the adjacent distance pins 61 is smaller than the distance between the inner vertices of the planar coil, so that the deformed planar coil can be easily inserted into the adjacent distance pins 61, solving the problem that the planar coil is difficult to smoothly insert into the distance pins 61 after removal. The bottom of the distance pins 61 with a conical structure is a normal cylindrical structure to avoid the problem that the planar coil slides upward after being installed due to the overall conical structure.

[0081] To further facilitate the insertion of the deformed planar coil, Fig.21 As shown, the needle body of each conical structure is hingedly reset to the operating platform 6 toward the adjacent distance needle body 61. The reset connection is a bidirectional torsion spring (not shown in the figure) provided at the hinge of the distance needle body 61. When the planar coil is not sheathed, the bidirectional torsion spring drives the distance needle body 61 to be in a vertical state. In the process of sheathing the deformed planar coil, as shown in FIG. Fig.21 As shown, the distance pin body 61 is driven to overcome the force of the bidirectional torsion spring and deflect the distance pin body 61. After deflection, the top distance between the adjacent distance pin body 61 can be greatly reduced, so that the deformed planar coil can be smoothly inserted, and then the distance pin body 61 is driven to reset to a vertical state, and the hinged distance pin body 61 is pulled from the left and right sides to balance to a vertical state through the adjacent planar coil. The above bonding and flattening components can be used to space multiple planar coils and bond and flatten them into a planar coil 11b with a long strip structure.

[0082] In order to roll the above-mentioned long strip-shaped planar coil 11b into a hollow cup winding with a cylindrical structure, as shown in FIG. Fig. 22As shown, the winding member includes a winding roller with the same inner diameter as the winding, and a winding belt 8 is wound on the surface of the winding roller 7. Fig. 22 As shown, the planar coil 11b with a long strip structure is placed on the horizontal plane of the winding belt 8, and then the winding belt 8 is moved in the direction of the arrow in the figure, so that the planar coil is driven to be wound on the winding roller 7. After the planar coil is wound on the winding roller 7, the winding belt 8 moves back and forth, so that the planar coil is rolled and shaped on the winding roller 7 for many times, and a hollow cup winding with a cylindrical structure is formed after the shaping. The winding roller 7 is preferably a horizontally adjustable sliding structure. After the planar coil is rolled and shaped, the winding roller 7 is driven to move and then separated from the winding belt 8, and the formed hollow cup winding can be removed from one side of the winding roller 7.

[0083] The ends of the hollow cup winding formed by rolling are not bonded, so in order to bond the ends of the hollow cup coil after rolling, the manufacturing device also includes a shaping component, such as Figure 24-25 As shown, it is composed of a shaping shaft 9 with the same inner diameter as the winding, and a shaping block 10 pressed against the outer peripheral surface of the winding. The rolled cylindrical coil is sleeved on the shaping shaft 9, and adhesive is coated at the connecting ends of the coil, and the coil is pressed against the shaping shaft 9 by a plurality of shaping blocks 10. After a certain curing time, the connecting ends of the rolled coil can be bonded, and the irregular shapes existing in the coil rolling process can be eliminated, so as to achieve the bonding and shaping of the coil ends (improving the roundness and inner and outer diameter dimensions of the hollow cup motor). The shaping block 10 can be clamped on a three-jaw chuck mechanism such as a machine tool for bonding and shaping.

[0084] Because the coil is shrunken and closely attached to the surface of the shaping shaft 9 under the shaping effect of the mechanical external force of the shaping block 10, it is difficult to remove it from the shaping shaft 9 after the shaping is completed. Therefore, in order to solve this problem, Fig.28 As shown, the shaping shaft 9 includes a core shaft 91, and a plurality of cone blocks 92 are axially distributed on the outer circumference of the core shaft 91, and gaps are left between each cone block 92. When disassembling the coil, the core shaft 91 can be axially disassembled from the plurality of cone blocks 92 first, and then, because of the gaps between the plurality of cone blocks 92, they can all move toward the center direction, so that each cone block 92 is out of close contact with the inner wall of the hollow cup coil, so that the shaped coil can be removed smoothly, avoiding the wear and deformation problems that occur when removing and removing in a close contact state with the shaping shaft 9.

[0085] Since a plurality of cone blocks 92 are pressed against the mandrel 91 during the coil shaping process, there is still a large friction resistance when the mandrel 91 is disassembled in advance, and the surface of the mandrel 91 and the cone block 92 that are in contact with each other will also be worn under the action of the external force of disassembly. Therefore, in order to solve this problem, Fig.28As shown, arc-shaped protrusions 9a with increasing heights along the circumferential direction are arranged at intervals on the circumferential surface of the core shaft 91, and the inner end surface of each cone block 92 is set as an oblique arc surface 9b that is flat against the arc-shaped protrusion 9a. The working principle is as follows Fig.29 As shown, when the coil shaping operation is performed, the coil is firstly sleeved on a plurality of cone blocks 92, and then the mandrel 91 is rotated in the direction indicated by the arc arrow in the figure, and the mandrel 91 contacts the oblique arc surface 9b of the cone block 92 with the arc-shaped protrusion 9a whose surface height gradually increases. As the arc-shaped protrusion 9a rotates, the height of the position corresponding to the oblique arc surface 9b gradually increases, and the distance between the oblique arc surface 9b and the surface of the arc-shaped protrusion 9a gradually decreases along the rotation direction of the arc-shaped protrusion 9a. Therefore, on the basis of the gradual increase in the height of the arc-shaped protrusion 9a and the gradual decrease in the spacing between the corresponding positions of the oblique arc surface 9b, each cone block 92 is driven to move outward by the arc-shaped protrusion 9a ( Fig.29 As shown by the straight arrow in the figure, the coil is pressed against the shaping block 10. After the bonding and shaping is completed, after the shaping block 10 is removed, the mandrel 91 is rotated in the opposite direction, so that each cone block 92 is radially retracted, as shown in FIG. Fig.30 As shown by the straight arrow in the middle, each cone block 92 can be separated from the inner wall of the cylindrical coil, so that the cylindrical coil can be smoothly removed from the cone block 92. The molding quality of the hollow cup winding can be further improved by the above manufacturing device.

[0086] According to the above manufacturing device, the present application also provides a method for manufacturing a micro motor hollow cup winding, comprising the following steps:

[0087] S1. Wrap the finished wire around the winding member to form a single planar coil. The specific operations are as follows:

[0088] When the planar coil is wound, one end of the wire is fixed, and then the wire is wound in a circular direction in the winding space b with the top of the winding protrusion 21 as the contact point, and each winding is pressed by the shaping block 10, and the planar coil is formed after winding multiple turns.

[0089] S2, curing the winding wire of the planar coil into an integrated structure through a curing component, the specific operation is:

[0090] A plurality of winding components and the wound planar coils are sleeved on the curing shaft 5 and rotated so that the adjacent wires wound by each planar coil are bonded and cured to each other, and a planar coil with an integrated structure can be formed after cooling.

[0091] S3, a bonding and flattening component is 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. The specific operation is as follows:

[0092] A single planar coil is sleeved on an adjacent distance needle body 61. If the planar coil is deformed, the corresponding distance needle body 61 can be driven to rotate, so that the planar coil can be smoothly sleeved. After the distance sleeve is completed, the pressing plate is connected to the operating platform 6 to flatten and solidify the multiple planar coils to form a long strip structure planar coil 11b.

[0093] S4, rolling the flattened planar winding into a winding by a rolling member, the specific operation is:

[0094] The planar coil 11b with a long strip structure is placed on the horizontal plane of the winding belt 8, and then the winding belt 8 moves in the direction of the arrow in the figure, driving the planar coil to be wound on the winding roller 7. After the planar coil is wound on the winding roller 7, the winding belt 8 moves back and forth, so that the planar coil is rolled and shaped on the winding roller 7 for many times, and a hollow cup winding with a cylindrical structure is formed after the shaping. The winding roller 7 is preferably a horizontally adjustable sliding structure. After the planar coil is rolled and shaped, the winding roller 7 is driven to move and then separated from the winding belt 8, and the formed hollow cup winding can be removed from one side of the winding roller 7.

[0095] S5. The unloaded and wound cylindrical coil is sleeved on the shaping shaft 9, and the end of the wound coil is bonded and shaped after being clamped from the outside by the shaping block 10. After the shaping is completed, the core shaft 91 of the shaping shaft 9 is rotated so that the circumference of the cone block 92 is out of contact with the inner wall of the coil, thereby forming a winding with a hollow cup structure.

[0096] The above shows and describes the basic principle, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention claimed.

Claims

1. A device for manufacturing hollow cup windings of micro motors, wherein the windings are formed by bonding and rolling a plurality of planar coils of planar structure, characterized in that: The production 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 manufacturing device according to claim 1, 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. A winding protrusion that abuts against the left winding body is arranged at a circumferential interval near the center of the right winding body. When the winding protrusion is in contact with the left winding body, a winding space is formed between the left winding body and the right winding body.

3. The manufacturing device according to claim 2, characterized in that: The bonding and flattening component comprises an operating platform, on which spacing needles are arranged at intervals to support the sleeve of a single planar coil and drive adjacent planar coils to be spaced apart and connected, and also comprises a pressing 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 having the same inner diameter as the winding wire, and a winding tape is wound around the surface of the winding roller.

5. The manufacturing device according to claim 4, 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: The following steps are involved: 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 using a rolling component.

7. The method according to claim 6, 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. A winding protrusion that abuts against the left winding body is arranged at a circumferential interval near the center of the right winding body. When the winding protrusion is in contact with the left winding body, a winding space is formed between the left winding body and the right winding body.

8. The method according to claim 7, characterized in that: The bonding and flattening component comprises an operating platform, on which spacing needles are arranged at intervals to support the sleeve of a single planar coil and drive adjacent planar coils to be spaced apart and connected, and also comprises a pressing plate assembled and pressed against the operating platform.

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

10. The manufacturing method according to claim 9, 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.

Images