Device and method for manufacturing coreless motor winding

Abstract

The invention discloses a coreless motor winding manufacturing device and method, and relates to the technical field of machining. According to the specific implementation mode, a winding tool 1, a shaping tool 2 and a forming tool 3 are included, the winding tool 1 is used for winding a single coil, and the single coil is of a rhombic plane structure; pressing the single coil into an arc shape by using a shaping tool 2; and the forming tool 3 is used for gluing, fastening and forming the single coils. According to the invention, the problem of manufacturing the coreless motor winding with a larger wire diameter is solved, a smaller coreless winding can be manufactured, the precision is high, and the operation is convenient.

Description

Technical Field

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

[0002] The coreless motor has the characteristics of simple structure, high efficiency, high power density, simple control and good stability. It can achieve high-efficiency energy conversion and represents one of the future development directions of motors. A core technology of the coreless motor is the motor winding. The difference in wire thickness and number of winding turns leads to large differences in motor parameters such as winding resistance, starting current and speed constant. The motor winding is an important part of the motor. The quality of the winding determines the quality of the coreless motor and directly affects the motor reliability and operating performance. The existing coreless motor coil winding method in China is mainly the winding coil production method. This process method is suitable for the production of coils with thinner enameled wires. For coils with a diameter of more than 0.2 mm, it is more difficult to make them using the winding method. Summary of the invention

[0003] The present invention designs a manufacturing device and method for relatively high-power hollow cup motor windings. The device and method have high dimensional accuracy of the manufactured hollow cup windings and can manufacture hollow cup windings with thick wire diameters for use in high-power hollow cup motors.

[0004] In view of this, according to one aspect of an embodiment of the present invention, a hollow cup motor winding manufacturing device is provided, comprising: a winding tool 1, a shaping tool 2 and a forming tool 3;

[0005] The winding tool 1 also includes a disc 11, a winding portion 12 and a through hole 13, wherein the winding portion 12 is protrudingly arranged on one side of the disc 11, the winding portion 12 and the disc 11 share a central point, the through hole 13 is arranged at the central point, the winding portion 12 is a rhombus-shaped planar structure, and the winding portion 12 is provided with a winding groove in a circumferential direction;

[0006] The shaping tool 2 also includes a first base 21, a first pressing plate 22, a second pressing plate 28, a clamp 23, a bolt 24, a first pin 25, a second pin 26, and a nut 27; a cylindrical protrusion is provided on one side of the first base 21, and the axial direction of the cylindrical protrusion is parallel to the first base 21; a pin hole perpendicular to the first base 21 is provided on the cylindrical protrusion for passing the first pin 25, and a groove parallel to the first base 21 and perpendicular to the axial direction of the cylindrical protrusion is also provided for passing the second pin 26, the first pressing plate 22 and the second pressing plate 28 are relatively arranged and covered on the outside of the cylindrical protrusion, and the inner sides of the first pressing plate 22 and the second pressing plate 28 are enclosed to form a cylindrical cavity; the clamp 23 is clamped on the outside of the first pressing plate 22 and the second pressing plate 28, and is fixed to the first base 21 by bolts 24 and nuts 27, and the first pin 25 and the second pin 26 are also respectively passed through the first pressing plate 22 and the second pressing plate 28;

[0007] The forming tool 3 also includes a core shaft 4, a second base 31, a third pressure plate 32 and a fixing clamp 33. The second base 31 is provided with a socket for plugging one end of the core shaft 4. A plurality of third pressure plates 32 are circumferentially arranged around the core shaft 4 and fixed by the fixing clamp 33.

[0008] Optionally, openings are provided at the tops of the first pressing plate 22 and the second pressing plate 28, and the grooves are provided at the openings.

[0009] Optionally, the first base 21 is provided with a wire groove.

[0010] Optionally, the wire grooves are arranged at the top and bottom ends of the cylindrical protrusion.

[0011] Optionally, the other end of the core shaft 4 is connected to the third pressing plate 32 via a key.

[0012] According to another aspect of an embodiment of the present invention, a method for manufacturing a hollow cup motor winding is provided, comprising: using any device as described in claims 1-5, performing step S1: using a winding tool 1 to wind a single coil, the single coil being a diamond-shaped planar structure; step S2: using a shaping tool 2 to press the single coil into an arc shape; step S3: using a molding tool 3 to glue and fasten a plurality of single coils into shape.

[0013] Optionally, step S2 also includes: placing the single coil on the cylindrical raised surface, positioning the two ends of the inner side of the single coil with two first pins 25, pressing the groove in the middle of the single coil with the second pin 26 for positioning, lightly pressing the single coil to fit the cylindrical raised surface with the left pressure plate 22 and the right pressure plate 28, fixing it with the clamp 23, and then fixing the clamp 23 with the bolt 24, and drying at 80°C.

[0014] Optionally, step S3 also includes: inserting the core shaft 4 into the socket of the second base 31; evenly arranging multiple single coils shaped into arc shapes on the surface of the core shaft 9; pressing these coils with a third pressing plate 32; fixing with a fixing clamp 33, and drying at 80°C.

[0015] The invention solves the problem of manufacturing hollow cup motor windings with thicker wire diameters, and can manufacture smaller hollow cup windings with high precision and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a winding tool for a coreless cup motor winding manufacturing device according to an embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a shaping tool for a hollow cup motor winding manufacturing device according to an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the assembly structure of a shaping tool of a hollow cup motor winding manufacturing device according to an embodiment of the present invention;

[0019] Figure 4 It is a structural schematic diagram of a forming tool for a hollow cup motor winding manufacturing device according to an embodiment of the present invention;

[0020] Figure 5 It is a schematic diagram of the assembly structure of a forming tool of a hollow cup motor winding manufacturing device according to an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of a circular arc-shaped single coil structure after shaping in a method for manufacturing a hollow cup motor winding according to an embodiment of the present invention;

[0022] Figure 7 A schematic diagram of a structure for forming a hollow cup motor winding according to an embodiment of the present invention;

[0023] Description of reference numerals:

[0024] 1-winding tool, 2-shaping tool, 3-molding tool, 11-disc, 12-winding part, 13-through hole, 21-first base, 22-first pressure plate, 23-clamp, 24-bolt, 25-first pin, 26-second pin, 27-nut, 28-second pressure plate, 4-core shaft, 31-second base, 32-third pressure plate, 33-fixing clamp, 34-second bolt, 35-second nut. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] A hollow cup motor winding manufacturing device, comprising: a winding tool 1, a shaping tool 2 and a forming tool 3, Figure 1 FIG. 1 is a schematic diagram of the structure of a winding tool for a coreless cup motor winding manufacturing device according to an embodiment of the present invention. Figure 1 As shown, the winding tool 1 also includes a disc 11, a winding portion 12 and a through hole 13, wherein the winding portion 12 is protrudingly arranged on one side of the disc 11, the winding portion 12 and the disc 11 share a center point, the through hole 13 is arranged at the center point, the winding portion 12 is a diamond-shaped plane structure, the winding portion 12 is circumferentially provided with winding grooves, the winding grooves are used to place the coil for winding, and the through hole 13 is used to be penetrated on a rotating mechanism such as a winding machine, so that the disc 11 can rotate for winding, thereby improving the winding efficiency.

[0027] Figure 2 is a structural schematic diagram of a shaping tool for a hollow cup motor winding manufacturing device according to an embodiment of the present invention, Figure 3 FIG. 1 is a schematic diagram of the assembly structure of a shaping tool for a hollow cup motor winding manufacturing device according to an embodiment of the present invention. Figure 2-3 As shown, the shaping tool 2 also includes a first base 21, a first pressing plate 22, a second pressing plate 28, a clamp 23, a bolt 24, a first pin 25, a second pin 26, and a nut 27; a cylindrical protrusion is provided on one side of the first base 21, and the axial direction of the cylindrical protrusion is parallel to the first base 21; a pin hole perpendicular to the first base 21 is provided on the cylindrical protrusion for passing the first pin 25, and a groove parallel to the first base 21 and perpendicular to the axial direction of the cylindrical protrusion is provided for passing the second pin 26, the first A pressure plate 22 and a second pressure plate 28 are arranged opposite to each other and cover the outer side of the cylindrical protrusion. The inner sides of the first pressure plate 22 and the second pressure plate 28 are enclosed to form a cylindrical cavity for accommodating a single coil. The clamp 23 is clamped on the outer sides of the first pressure plate 22 and the second pressure plate 28, and is fixed to the first base 21 by bolts 24 and nuts 27. The first pin 25 and the second pin 26 are also respectively penetrated through the first pressure plate 22 and the second pressure plate 28, and are used to fix the entire first pressure plate 22, the second pressure plate 28, the base 21 and the single coil to prevent relative movement and dislocation.

[0028] According to an embodiment of the present invention, openings are provided on the tops of the first pressing plate 22 and the second pressing plate 28, and grooves are provided at the openings. The openings are used to observe whether the coils are fixed to the correct positions.

[0029] According to an embodiment of the present invention, the first base 21 is provided with a wire groove. Further, the wire groove is provided at the top and bottom ends of the cylindrical protrusion for placing the wire of the coil.

[0030] According to one embodiment of the present invention, the other end of the core shaft 4 is connected to the third pressing plate 32 via a key and is placed in a misaligned manner.

[0031] According to one embodiment of the present invention, the diameter of the cylindrical protrusion is the same as the diameter of the hollow cup motor winding to be manufactured.

[0032] Figure 4 is a structural schematic diagram of a forming tool for a hollow cup motor winding manufacturing device according to an embodiment of the present invention, Figure 5 FIG. 1 is a schematic diagram of the assembly structure of a forming tool for a hollow cup motor winding manufacturing device according to an embodiment of the present invention. Figure 4-5 As shown, the forming tool 3 also includes a core shaft 4, a second base 31, a third pressure plate 32 and a fixing clamp 33. The second base 31 is provided with a socket, which is used to plug in one end of the core shaft 4. Multiple third pressure plates 32 are circumferentially arranged along the core shaft 4 and fixed by the fixing clamp 33.

[0033] According to another aspect of an embodiment of the present invention, a method for manufacturing a coreless motor winding is provided, comprising: using any device as described in claims 1 to 5, performing step S1: using a winding tool 1 to wind a single coil, the single coil being a diamond-shaped planar structure; step S2: using a shaping tool 2 to press the single coil into an arc shape, such as Figure 6 Schematic diagram of a circular arc-shaped single coil structure after shaping according to a method for manufacturing a hollow cup motor winding according to an embodiment of the present invention; Step S3: using a molding tool 3 to glue and fasten a plurality of single coils into shape, such as Figure 7 The figure is a schematic structural diagram of a hollow cup motor winding manufacturing method according to an embodiment of the present invention.

[0034] According to an embodiment of the present invention, step S2 further includes: placing a single coil on the cylindrical raised surface, positioning the two ends of the inner side of the single coil with two first pins 25, pressing the groove in the middle of the single coil with a second pin 26 for positioning, lightly pressing the single coil with a left pressing plate 22 and a right pressing plate 28 to fit the cylindrical raised surface, fixing it with a clamp 23, and then fixing the clamp 23 with a bolt 24, and drying at 80°C. Specifically, it can be placed in a temperature box and dried at 80°C for two hours and then taken out.

[0035] According to an embodiment of the present invention, step S3 further includes: inserting the mandrel 4 into the insertion hole of the second base 31; evenly arranging a plurality of single coils shaped into arc shapes on the surface of the mandrel 9; pressing the coils with a third pressing plate 32; fixing with a fixing clamp 33, which can be fixed by a second bolt 34 and a second nut 35, and drying at 80°C. Specifically, it can be placed in a temperature box and dried at 80°C for two hours and then taken out.

[0036] According to one embodiment of the present invention, the first pressing plate 22 and the second pressing plate 28 are provided with openings at the top, and the grooves are provided at the openings.

[0037] According to an embodiment of the present invention, the first base 21 is provided with a wire groove. Further, the wire groove is provided at the top and bottom ends of the cylindrical protrusion.

[0038] According to one embodiment of the present invention, the other end of the core shaft 4 is connected to the third pressing plate 32 via a key.

[0039] The above is only a specific embodiment of the present invention, and the present invention is described in detail. The unexhausted part is a conventional technology. However, the protection scope of the present invention is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A hollow cup motor winding manufacturing device, characterized in that: include: Winding tool (1), shaping tool (2) and forming tool (3); The winding tool (1) further comprises a disc (11), a winding portion (12) and a through hole (13), wherein the winding portion (12) is protrudingly arranged on one side of the disc (11), the winding portion (12) and the disc (11) share a common center point, the through hole (13) is arranged at the center point, the winding portion (12) is a rhombus-shaped planar structure, and a winding groove is provided in the circumferential direction of the winding portion (12); The shaping tool (2) also includes a first base (21), a first pressing plate (22), a second pressing plate (28), a clamp (23), a bolt (24), a first pin (25), a second pin (26), and a nut (27); a cylindrical protrusion is provided on one side of the first base (21), and the axial direction of the cylindrical protrusion is parallel to the first base (21); a pin hole is provided on the cylindrical protrusion and is perpendicular to the first base (21) for passing the first pin (25); and a second pin hole is provided which is parallel to the first base (21) and perpendicular to the cylindrical protrusion. The groove in the axial direction of the protrusion is used to penetrate the second pin (26); the first pressing plate (22) and the second pressing plate (28) are arranged opposite to each other and covered on the outer side of the cylindrical protrusion; the inner sides of the first pressing plate (22) and the second pressing plate (28) are enclosed to form a cylindrical cavity; the clamp (23) is clamped on the outer sides of the first pressing plate (22) and the second pressing plate (28), and is fixed to the first base (21) by bolts (24) and nuts (27); the first pin (25) and the second pin (26) are also penetrated by the first pressing plate (22) and the second pressing plate (28) respectively; The forming tool (3) also includes a core shaft (4), a second base (31), a third pressing plate (32) and a fixing clamp (33); the second base (31) is provided with a plug hole, the plug hole is used to plug one end of the core shaft (4); a plurality of third pressing plates (32) are arranged to surround the core shaft (4) circumferentially and are fixed by the fixing clamp (33).

2. The device according to claim 1, characterized in that The first pressing plate (22) and the second pressing plate (28) are provided with openings at the top, and the grooves are provided at the openings.

3. The device according to claim 1, characterized in that The first base (21) is provided with a wire groove.

4. The device according to claim 3, characterized in that The wire grooves are arranged at the top and bottom ends of the cylindrical protrusion.

5. The device according to claim 1, characterized in that The other end of the core shaft (4) is connected to the third pressing plate (32) via a key.

6. A method for manufacturing a coreless motor winding, characterized in that: include: Using any device as described in claims 1-5, Step S1: using the winding tool (1) to wind a single coil, wherein the single coil has a diamond-shaped planar structure; Step S2: using a shaping tool (2) to press the single coil into an arc shape; Step S3: Use the molding tool (3) to glue and fasten the multiple single coils into shape.

7. The method according to claim 6, characterized in that Step S2 also includes: Place the single coil on the cylindrical raised surface, use two first pins (25) to locate the two ends of the inner side of the single coil, use the second pin (26) to press the groove in the middle of the single coil for positioning, use the left pressure plate (22) and the right pressure plate (28) to gently press the single coil to fit the cylindrical raised surface, fix it with a clamp (23), and then fix the clamp (23) with a bolt (24), and dry it at 80°C.

8. The method according to claim 6, characterized in that Step S3 also includes: Insert the mandrel (4) into the insertion hole of the second base (31); evenly arrange a plurality of single coils shaped into arc shapes on the surface of the mandrel (9); press the coils with a third pressing plate (32); fix them with a fixing clamp (33), and dry them at 80°C.

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