Jig for servo motor stator winding

Abstract

The jig comprises a fixing plate, a rotating shaft, winding dies, a mandrel and a telescopic rod, the rotating shaft is installed in a middle shaft hole of the fixing plate, linear long holes are formed in the two ends of the fixing plate, the detachable winding dies are installed at the two ends of the fixing plate, and the distance between the two winding dies can be adjusted. The winding die is installed at the position of the linear long hole through a mandrel, and a telescopic rod capable of being clamped into the linear long hole is installed on the winding die. By means of the mode, the positioning distance can be adjusted according to products of different specifications, applicability is wide, coils can be bound conveniently, and the coils can be taken down rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a fixture for stator winding of a servo motor. Background Art

[0002] With the refinement of the application market, diverse requirements for servo motors have emerged. To meet the diverse needs of the market for servo motors, the models and winding schemes of servo motors have increased rapidly. Generally, for new schemes, manufacturers usually adopt several methods to handle the newly added prototypes, that is, using fixed rectangular clips. The large rectangular clip serves as the partition 01, the partition 01 is installed on the central shaft 02, and the small rectangular clip serves as the winding board 03. Then, by repeating continuously, a multi-layer winding mold can be made. When disassembling, loosen the nut 04 and remove the clips together, as Figure 1 shown. The disadvantage is that the winding length cannot be changed arbitrarily, which is not friendly to the modification of the scheme. Therefore, fewer manufacturers use this winding method.

[0003] Another commonly used winding mold is an integral semi-circular winding mold. When removing the coil, loosen the fixed bolt 05 and remove the semi-circular winding mold 06, as Figure 2 and Figure 3 shown. The disadvantage is that for coils of the same specification, the fixed bolt 05 in the slotted hole 07 needs to be loosened every time during disassembly, which is inconvenient to operate.

[0004] Based on the above defects and deficiencies, it is necessary to improve the existing technology and design a fixture for stator winding of a servo motor. Summary of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a fixture for stator winding of a servo motor, which can adjust the positioning distance according to different specifications of products, has a wide applicability, is convenient for binding coils, and can quickly remove the coils.

[0006] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a fixture for stator winding of a servo motor, which includes a fixing plate, a rotating shaft, a winding mold, a core shaft, and a telescopic rod. The rotating shaft is installed in the middle shaft hole of the fixing plate. The two ends of the fixing plate are provided with linear long holes. Removable winding molds are installed at the two ends of the fixing plate, and the distance between the two winding molds can be adjusted. The winding mold is installed at the linear long hole through the core shaft, and a telescopic rod that can be inserted into the linear long hole is installed on the winding mold.

[0007] Preferably, the winding die includes a winding part and a partition plate. The winding part is in the shape of a rotating body, and a central shaft hole is designed in the center of the winding part. A plurality of equally spaced partition plates are arranged at the outer end of the winding part and extend outward. V-shaped wire threading grooves are arranged on the plurality of partition plates, and the bottom surface of the V-shaped wire threading groove is lower than the rotating surface of the winding part. The rotating surface of the winding part is designed as a conical surface convenient for taking the coil.

[0008] Preferably, the conical surface angle is 0.43°.

[0009] Preferably, the mandrel is designed with a step. The mandrel includes a mounting part locked to the fixing plate, a mounting part for threading the winding die, and a limiting part located between the mounting part and the mounting part and extending around. The shaft diameter of the mounting part is smaller than the central shaft hole of the winding die, so that when the mandrel is locked to the fixing plate, the winding die is not affected and can rotate freely. External threads are arranged at both ends of the mandrel, and locking nuts are installed at the external threads.

[0010] Preferably, the telescopic rod includes a rod part installed inside the winding die and a spherical part elastically connected to the rod part. The telescopic rod is installed along the axial direction.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] The design of the V-shaped wire threading groove of the winding die is beneficial for the operator to bind the wound coil group;

[0013] The telescopic rod is designed on the winding die, which helps to quickly position the winding die without cumbersome operations;

[0014] The design of the taper on the semi-circular side of the winding die facing away from the partition plate helps the coil group to slide out smoothly. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the existing rectangular clip winding.

[0016] Figure 2 It is a schematic structural diagram of an integral semi-circular winding die.

[0017] Figure 3 It is a side view of an integral semi-circular winding die.

[0018] Figure 4 It is a schematic structural diagram of a fixture for servo motor stator winding.

[0019] Figure 5 It is a front view of a fixture for servo motor stator winding.

[0020] Figure 6 It is a schematic structural diagram of the winding die of a fixture for servo motor stator winding.

[0021] Figure 7 The side view of the winding die of a fixture for the stator winding of a servo motor.

[0022] Figure 8 The schematic diagram of the mandrel structure of a fixture for the stator winding of a servo motor.

[0023] Wherein, 1. fixed plate, 10. slotted long hole in shape of a straight line, 2. rotating shaft, 3. winding die, 31. winding part, 310. central shaft hole, 32. partition plate, 320. V-shaped wire threading groove, 4. mandrel, 41. installation part, 42. threading part, 43. limiting part, 44. external thread, 5. telescopic rod, 51. rod part, 52. spherical part, 6. locking nut. Specific embodiments

[0024] The following combines the drawings to elaborate on the preferred embodiments of the present utility model, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0025] Please refer to Figures 4 to 8 , the embodiments of the present utility model include:

[0026] A fixture for the stator winding of a servo motor, the fixture for the stator winding of a servo motor includes a fixed plate 1, a rotating shaft 2, a winding die 3, a mandrel 4 and a telescopic rod 5. The rotating shaft 2 is installed in the middle shaft hole of the fixed plate 1. The two ends of the fixed plate 1 are provided with slotted long holes 10 in shape of a straight line. The two ends of the fixed plate 1 are installed with detachable winding dies 3, and the distance between the two winding dies 3 is adjustable. The winding die 3 is installed at the slotted long hole 10 through the mandrel 4. The telescopic rod 5 that can be clamped into the slotted long hole 10 is installed on the winding die 3.

[0027] The winding die 3 includes a winding part 31 and a partition plate 32. The winding part 31 is in a rotary body shape. The center of the winding part 31 is designed with a central shaft hole 310. A plurality of equally spaced partition plates 32 are extended outward at the outer end of the winding part 31. A V-shaped wire threading groove 320 is arranged on the plurality of partition plates 32. The bottom surface of the V-shaped wire threading groove 320 is lower than the rotary surface of the winding part 31. The rotary surface of the winding part 31 is designed as a conical surface convenient for taking the coil, and the taper is 0.43°.

[0028] The mandrel 4 is designed with steps. The mandrel 4 includes a mounting portion 41 locked to the fixed plate 1, a mounting portion 42 for passing through the winding die 3, and a limiting portion 43 located between the mounting portion 41 and the mounting portion 42 and extending around. The shaft diameter of the mounting portion 42 is smaller than the central shaft hole 310 of the winding die 3. When the mandrel 4 is locked to the fixed plate 1, the winding die 3 is not affected and can rotate freely. External threads 44 are provided at both ends of the mandrel 4, and locking nuts 6 are installed at the external threads 44.

[0029] The telescopic rod 5 includes a rod portion 51 installed inside the winding die 3 and a spherical portion 52 elastically connected to the rod portion. The telescopic rod 5 is installed along the axial direction.

[0030] When the fixture for servo motor stator winding of the present utility model works, two winding dies 4 are installed on the fixed plate 1 through the mandrel 4. After adjusting the distance between the two winding dies 3 and locking them, the partition plates 32 of the winding die 3 face away from the central hole of the fixed plate 1 at 180°. The spherical portion 52 of the telescopic rod 5 is positioned in the linear hole 10 of the fixed plate 1, and winding starts. The copper wire is wound around the partition between two adjacent partition plates 32 one by one. After a partition is filled with coils, the copper wire is led to the next partition to continue winding the coils until all the partitions 32 are filled with coils, forming coil groups separated by the partition plates 32. When the coils are wound, the coil groups are tied one by one through the V-shaped wire grooves 320 to prevent the coils from loosening when taking the coil groups. After the tying is completed, the locking nut 6 outside the winding die 3 is loosened, and the winding die 3 is rotated so that the partition plate 32 faces the central hole of the fixed plate 1. The telescopic rod 5 is repositioned in the linear long hole 10. Because the radius of the winding die 3 decreases along the axis, the wound coils can be smoothly removed along the axial direction.

[0031] The fixture for servo motor stator winding of the present utility model can adjust the positioning distance according to different specifications of products, has a wide applicability, is convenient for tying coils, and can quickly remove the coils.

[0032] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A fixture for servo motor stator winding, characterized in that: The invention comprises a fixed plate (1), a rotating shaft (2), a winding die (3), a core shaft (4) and a telescopic rod (5), wherein the rotating shaft (2) is installed in the middle shaft hole of the fixed plate (1), two ends of the fixed plate (1) are provided with a straight-line long hole (10), two ends of the fixed plate (1) are provided with a detachable winding die (3), the distance between the two winding dies (3) is adjustable, the winding die (3) is installed at the straight-line long hole (10) through the core shaft (4), and the winding die (3) is provided with a telescopic rod (5) which can be inserted into the straight-line long hole (10).

2. The jig for servo motor stator winding according to claim 1, characterized in that: The winding mold (3) comprises a winding portion (31) and a partition plate (32); the winding portion (31) is in the shape of a rotating body; a central axis hole (310) is provided at the center of the winding portion (31); a plurality of partition plates (32) are provided at equal intervals extending outward from the outer end of the winding portion (31); a plurality of the partition plates (32) are provided with V-shaped threading grooves (320); the bottom surface of the V-shaped threading grooves (320) is lower than the rotating surface of the winding portion (31); and the rotating surface of the winding portion (31) is designed to be a conical surface that is convenient for taking a coil.

3. The jig for servo motor stator winding according to claim 2, characterized in that: The cone angle is 0.43°.

4. The jig for servo motor stator winding according to claim 1, characterized in that: The core shaft (4) is designed with a step. The core shaft (4) comprises a mounting portion (41) locked to the fixed plate (1), a mounting portion (42) for mounting the winding die (3), and a limiting portion (43) located between the mounting portion (41) and the mounting portion (42) and extending in all directions. The mounting portion (42) has an axial diameter smaller than a central axial hole (310) of the winding die (3), so that when the core shaft (4) is locked to the fixed plate (1), the winding die (3) is not affected and can rotate freely. External threads (44) are provided at both ends of the core shaft (4), and locking nuts (6) are installed at the external threads (44).

5. The jig for servo motor stator winding according to claim 1, characterized in that: The telescopic rod (5) comprises a rod portion (51) installed inside the winding mold (3) and a spherical portion (52) elastically connected to the rod portion. The telescopic rod (5) is installed along the axial direction.

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