JPH0667154B2 - Armature winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to an improved armature winding device for winding an armature such as a DC motor.

<Prior Art> Conventionally, a winding device of an armature has a means for supplying a wire to the armature in the axial direction as disclosed in Japanese Patent Publication No. 57-4179 and Japanese Patent Laid-Open No. 58-195455. The winding is performed by reciprocating in the circumferential direction and the radial direction.

For example, FIG. 2 shows another conventional winding device for an armature. In this winding device 51, a rotor unit 52 before winding is fixed by gripping an end portion of a rotor shaft 54 by a collet chuck 53 having an indexing function.
A cylindrical jig 56 is attached to the outside of the collet chuck 53 so as to cover the commutator 55. Rotor unit
A pair of opposed spindle shafts 59 located on a radial centerline 58 passing through the center of the core 57 of 52 are rotated in opposite directions. Then, the wire 61 is supplied from the tip of the flyer arm 60 fixed to each spindle shaft 59, guided by the guide jig 62 to the core slot 63, and wound around a predetermined core tooth 64. Further, the cylindrical jig 56 is moved back and forth to wire between the core 57 and the commutator 55, and the collet chuck 53 is rotated by a constant angle to sequentially wind the core teeth.

However, if the shape of the rotor unit, that is, the outer diameter of the core, the stacking length, the number of poles, or the outer diameter of the commutator and the rotor shaft, etc., differs depending on the model of the motor to be manufactured, a separate guide jig, cylindrical jig, flyer arm, etc. will be provided. , A collet chuck or indexing device is used, and jigs need to be replaced for each model, so the process is complicated, tedious, and time-consuming, which reduces productivity and increases manufacturing costs. there were.

<Problems to be Solved by the Invention> Therefore, an object of the present invention is to automatically perform winding by adapting rotor units of various shapes and sizes without changing jigs or the like depending on the model. An object of the present invention is to provide an armature winding device capable of improving productivity by saving labor and reducing manufacturing costs.

[Means for Solving the Problems] <Means for Solving the Problems> According to the present invention, the above object is to provide a wire supplying means for supplying a wire to a rotor unit through a nozzle, and an axial direction, a radial direction and a circumference of the rotor unit. A winding device for an armature, comprising: a drive means for relatively moving the nozzle and the rotor unit in a direction, wherein the nozzle is movable at least along a radial direction of the rotor unit, and the drive means is It has three servo motors for driving the nozzle or the rotor unit in the axial direction, the radial direction and the circumferential direction of the rotor unit, and each servo motor is pre-programmed according to the shape of the rotor unit. To provide an armature winding device characterized by being drive-controlled based on the winding path It is made.

<Operation> In this way, the relative movement of the nozzle and the rotor unit in the three directions becomes possible by driving and controlling each servo motor in accordance with the winding locus according to a predetermined program. Depending on the shape and dimensions, the armature can be automatically wound without replacing the jig.

<Embodiment> Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 schematically shows the entire structure of an armature winding device to which the present invention is applied. In this winding device, two guide rods 3 and 4 are installed in parallel between a pair of fixed walls 1 and 2 which are spaced apart and arranged in parallel on a base (not shown), and on the guide rods. The rotor unit support 5 is supported so as to be movable along the axial direction. A rotor shaft chuck 6 is attached to the front surface of the support 5 so as to rotate integrally with the main shaft 7 in the direction of arrow A.
The chuck 6 holds the end of the rotor shaft 9 of the rotor unit 8 that constitutes an armature. As is well known, the rotor unit 8 includes a core 10 formed by laminating a large number of thin plates and having core teeth divided by a plurality of core slots along the axial direction, and a core 10 insulated from each other in the circumferential direction. A commutator 11 having the same number of segments as the teeth is fixed coaxially with each other.

Between the fixed walls 1 and 2, a support base drive rod 12 is rotatably supported in parallel with the guide rods 3 and 4 and immediately below one of the guide rods 3. A thread groove 13 is engraved on the outer peripheral surface of the drive rod 12 at a constant pitch over the entire length of the ridge, and a well-known ball nut 14 fixed to the support 5 is engaged through a large number of steel balls. They are connected to each other by a ball screw structure. As a result, the rotational movement of the drive rod 12 is converted into a linear movement via the ball nut 14 and transmitted, and the support base 5 moves along the guide rods 3 and 4 in the direction of arrow B.

A wire supply device 15 for supplying a wire to the rotor unit 8 is arranged immediately in front of the front fixed wall 1. In the wire feeding device 15, two horizontal guide rods 18 are installed between a pair of left and right side frames 16 and 17 fixed on the base, and a pair of movable members 19 and 20 are provided on the guide rods. Are movably supported. Movable member 1
Nozzles 21 and 22 are arranged at the upper ends of the shafts 9 and 20 on a horizontal horizontal center line orthogonal to the axis of the rotor shaft 9, and wires 25 and 26 are respectively connected from the respective tip openings 23 and 24 facing each other to the rotor. It is supplied toward the unit 8.

A rack bar having a rack formed therein is coupled to the lower ends of the movable members 19 and 20, respectively, as will be described later, and they move together with the rack bar on the guide rod 18 in the direction of arrow C.

The above-described winding device according to the present invention includes three servo motors 32 to 34 electrically connected to a common control device (not shown).
Equipped with. The first servomotor 32 is arranged above the main shaft 7 of the support base 5 such that its axial direction and the output shaft 35 are parallel to each other. A pulley 36 is fixed to the end of the output shaft 35,
And the toothed belt 38 between it and the pulley 37 mounted on the main shaft 7.
Thus, the driving force of the first servomotor 32 is transmitted to the main shaft 7 and the rotor unit 8 can be rotated. The pulley 37 is spline-coupled to the main shaft 7 so that even if the main shaft 7 moves in the axial direction, the pulley 37 is always held at a predetermined position near the fixed wall 2 and integrally rotates.

The second servomotor 33 is arranged below the drive rod 12 such that its axial direction is parallel to the output shaft 39. A pulley 40 is fixed to the end of the output shaft 39, and a toothed belt 42 is wound around the pulley 40 fixed to the end of the drive rod 12 protruding from the fixed wall 2. As a result, the driving force of the second servo motor 33 is transmitted to the driving rod 12,
The support base 5 can be driven in the front-back direction. Further, the third servomotor 34 has a gear 44 fixed to the end of the output shaft 43 thereof, and meshes with a downward facing rack 46 of a rack bar 45 integrally formed at the lower end of one movable member 20. Further, the rack 46 is meshed with an upward rack (not shown) integrally formed at the lower end of the other movable member 19 at a position symmetrical with the rack 46. Therefore, when the third servomotor 34 is driven, the movable member 20 moves in the left-right direction on the guide rod 18, and at the same time, the other movable member 19 moves in the opposite direction.

In the control device, the shape and dimensions of the rotor unit 8 held by the chuck 6, that is, the outer diameter of the core 10, the axial length, the number of poles, the outer diameters of the commutator 11 and the rotor shaft 9, etc. are stored in advance as position information. The winding locus that is input and determined based on these pieces of information is recorded in advance. And
The control device determines the rotation angle of each of the servo motors 32 to 34 and controls the drive so that the winding locus is reproduced according to a predetermined program. As a result, the main shaft 7 is rotated to move the support base 5 in the front-back direction, or the movable member 1
Winding is performed by moving the rotors 9 and 20 in opposite directions and supplying the wires 25 and 26, while relatively moving the rotor unit 8 and the nozzles 21 and 22 in the axial, circumferential and radial directions.

Further, according to the present invention, also in the skew type rotor unit in which the core teeth and the core slot are twisted, each servo motor is driven based on the three-dimensional winding locus in which the shape and the dimension are connected as the position information. By doing so, the winding can be similarly provided. Furthermore, the present invention is not limited to the above-mentioned embodiments, and various other structures can be applied to the driving force transmission mechanism between each servo motor and the nozzle or the main shaft, for example.

[Effects of the Invention] As described above, according to the present invention, the nozzle and the chuck for gripping the rotor unit are driven by servo motors, respectively, and each servo is controlled by the controller in accordance with the winding locus along the shape of the rotor unit. By controlling the motor to move the nozzle and the rotor unit relative to each other in three directions, the rotor and the rotor unit are automatically wound in accordance with various shapes and sizes of the rotor unit without changing jigs or the like depending on the manufacturing model. Since the wire can be formed, the work is simple and labor-saving, the manufacturing cost can be reduced, and the productivity can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing an armature winding device according to the present invention. FIG. 2 is a perspective view schematically showing a conventional winding device. 1, 2 ...... fixed wall 3,4 ...... guide rod 5 …… support base, 6 …… chuck 7 …… spindle, 8 …… rotor unit 9 …… rotor shaft, 10 …… core 11 …… commutator, 12 …… Drive rod 13 …… Screw groove, 14 …… Ball nut 15 …… Wire feeder 16,17 …… Side frame 18 …… Guide rod, 19,20 …… Movable member 21,22 …… Nozzle, 23 , 24 …… Opening 25,26 …… Wire, 32-34 …… Servomotor 35 …… Output shaft, 36,37 …… Pulley 38 …… Toothed belt, 39 …… Output shaft 40,41 …… Pulley, 42 …… Toothed belt 43 …… Output shaft, 44 …… Gear 45 …… Rack bar, 46 …… Rack 51 …… Winding device, 52 …… Rotor unit 53 …… Collet chuck 54 …… Rotor shaft, 55 …… Commutator 56 …… Cylindrical jig, 57 …… Core 58 …… Center line, 59 …… Spindle axis 60 …… Flyer arm, 61 …… Wye 62 ...... Gaidojigu, 63 ...... core slots 64 ...... core teeth

Claims (2)

[Claims] 1. An armature comprising wire supplying means for supplying a wire to a rotor unit through a nozzle, and drive means for relatively moving the nozzle and the rotor unit in an axial direction, a radial direction and a circumferential direction of the rotor unit. The winding device according to claim 1, wherein the nozzle is movable at least along a radial direction of the rotor unit, and the drive means is the nozzle or the rotor in each of an axial direction, a radial direction, and a circumferential direction of the rotor unit. Driving unit 3
An armature winding device having a plurality of servo motors, wherein each of the servo motors is drive-controlled based on a winding locus preprogrammed along the shape of the rotor unit. 2. The armature winding device according to claim 1, wherein the rotation angle of the servo motor is numerically controlled.