JPH02231946A - Rotor winder for motor - Google Patents

Abstract

PURPOSE:To automate hooking to the riser of a commutator by providing an arm body having a wire supply port, a rotary shaft for guiding the wire supply port reciprocally in the axial direction, and means for driving a pair of coupling shafts pivoted to the arm body. CONSTITUTION:Upon variation of undulation on the cam face of a cam 46, a driver 25 is displaced to cause arched motion of a capillary tube 23 thus causing curved motion of a coupling pin 36 around the axis. Upon rotation of a cam 49, a slide lever reciprocates to cause rolling motion of the capillary tube 23 around the axis of a spindle 4. The capillary tube 23 can perform various motions through rotation of the cams 45, 46, 49. By such arrangement, hooking to the riser of a commutator can be automated.

Description

[Detailed Description of the Invention] [Object of the Invention] <Industrial Application Field> The present invention relates to a winding device for a motor rotor, and particularly to a winding device for easily hooking a commutator to a riser. .

<Prior art> Conventional motor rotor winding devices include, for example, the
As disclosed in Publication No. 4179, the copper wire is supplied from a supply nozzle toward the rotor, and the supply nozzle is reciprocated in each of the axial direction, circumferential direction, and radial direction with respect to the rotor. Some wires are wound. When winding a flat motor rotor using this winding device, the winding part of the armature and the hooking part of the riser are relatively far apart in the radial direction of the rotor. must be moved at an acute angle between the armature and riser. In addition, if the riser has a locking pawl, the copper wire must be hooked to the locking pawl to connect the wire to the riser. The problem was that the manufacturing process was complicated because the copper wire was pulled out in the amount necessary for hooking to the corresponding riser, and then hooked to the riser by hand after all the windings to the armature were completed. Ta. Note that although a robot hand can be used instead of a human hand, there are problems in that the device becomes larger and the cost increases.

<Problems to be Solved by the Invention> In view of the problems of the prior art, the main purpose of the present invention is to automatically hook the commutator to the riser, and to reduce the cost of winding work. An object of the present invention is to provide a winding device for a motor rotor that can be inexpensive.

[Structure of the Invention <Means for Solving the Problems> According to the present invention, an apparatus for winding a wire around a motor rotor is provided, the wire being wound toward the motor rotor. an arm body having a wire supply port at its free end for supplying the wire; and the arm body is reciprocably guided in an axial direction along the direction of contact and separation in order to move the wire supply port toward and away from the motor rotor. a rotation shaft that can be rotated about the axis along with the arm body, a pair of connecting shafts that are pivotally attached to the arm body at a radial distance from each other, and both of the connecting shafts can be individually pushed and pulled in the axial direction. This is achieved by providing a motor rotor winding device characterized by having a pair of driving means. In particular, the arm body has an L-shape consisting of a long side and a short side, the wire supply port is provided at a free end of the long side, and the wire supply port is provided at both ends of the short side. It is preferable that both connecting shafts are pivotally connected to each other.

<Function> In this way, by rotating the rotation shaft by a predetermined angle, the wire supply port can be swung, and by fixing one of the pair of connecting shafts and pushing and pulling the other,
The wire supply port can be moved in a curve around the axis of the pivot point of one of the connecting shafts, and by appropriately combining these, the wire supply port can be moved three-dimensionally, resulting in a simple structure. The hooking operation to the riser of the commutator can be performed automatically. Moreover, by forming the arm body into an L-shape, the above-mentioned movement of the wire supply port can be easily performed.

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

In FIG. 1, a spindle mechanism section 1 of a winding device according to the present invention is shown broken along its axis, and on the right side of the figure, it is rotatably supported by a motor support device (not shown). A relatively flat motor 2 is arranged. A pair of ball bearings 5a are mounted on end walls facing each other at a distance from the left and right in the drawing of the frame 3 of the spindle mechanism section 1.
, 5b are provided coaxially with each other, and a hollow spindle shaft 4 is rotatably supported by these ball bearings 5a and 5b. In addition, the spindle shaft 4 and the motor 2
and their respective axes are orthogonal to each other.

A rod 7 is provided in an axial hole 4a coaxially formed in the spindle shaft 4, and is supported at both ends in the axial direction by a pair of bearings 6a and 6b so as to be able to reciprocate in the axial direction. On the left side of the rod 7 in the figure, there is an annular groove 7 in the circumferential direction.
A is recessed, and an annular disc-shaped driver 8 is coaxially fitted into a corresponding portion of the outer peripheral surface of the spindle shaft 4 so as to be slidable only in the axial direction. An annular groove 8a is recessed in the outer periphery of the disc-shaped driver 8 in the circumferential direction, and a fork lever 9 is arranged outside the disc-shaped driver 8 so as to sandwich the disc-shaped driver 8 in the diametrical direction. At both free ends of the fork lever 9 facing each other,
A pair of cam followers 11a and 11b are provided so as to be movably received within the annular groove 8a.

Further, the disk-shaped driver 8 is integrally provided with a small cam follower 12 that protrudes radially inward from its inner peripheral surface, and the small cam follower 12 is connected to the spindle shaft 4.
It faces into the annular groove 7a of the rod 7 through a slot 13 opened in the radial direction in the peripheral wall of the rod 7, and is received in a movable manner. Therefore, when the fork lever 9 is driven to swing by a drive device (not shown),
Since the disc-shaped driver 8 reciprocates in the direction of arrow A in the figure, the rod 7 reciprocates in the axial direction indicated by arrow B in the figure via the small cam follower 12.

FIG. 2 is an exploded perspective view showing the main parts of the spindle mechanism section 1, and as shown in FIGS. 1 and 2, from the middle part of the spindle shaft 4 to the ball bearing on the right side in FIG. 5a is formed with an enlarged diameter portion 14 that is larger in diameter than the left side portion, and a portion of the spindle shaft 4 that protrudes outward from the right end wall of the frame 3 in FIG. A large diameter portion 15 is formed. The enlarged diameter portion 14 has an axial slot 16 recessed in two directions as shown in FIG.
is provided until it reaches the large diameter part 15, and the large diameter part 15
is provided with a widened portion 17 that communicates with the slot 16 and is wider than the slot 16. This widened part 17
is open toward the right end surface of the large diameter portion 15 in the axial direction. Note that the slot 16 marked with -1 on the spindle shaft 4
On the opposite side to the widened portion 17, a cutout portion 18 is provided for maintaining rotational balance.

A capillary arm 22 is provided in the widened portion 17 . This capillary arm 22 is formed in an L-shape, and its bent portion is used as a connecting shaft (described later) so that the free end of its long side portion 22a can move in an arc on a plane including the axis of the spindle shaft 4. The first driving lever 33 is pivotally connected via a connecting pin 35 connected to the front end of the first driving lever 33. A capillary tube 23 made of cemented carbide and having a mirror-finished inner surface is fixed to the free end of the long side 22a in order to supply the winding copper wire 21 to the motor 2. There is.

A guide groove portion 22c is formed in the short side portion 22b of the capillary arm 22, passing through the short side portion 22b in the thickness direction thereof and perpendicular to the axis of the connecting pin 35.

A connecting pin 36 connected to the front end of a second drive lever 34, which will be described later as a connecting shaft, is in the guide groove 22c.
The capillary arm 22 is relatively slidably engaged with the spindle shaft 4 in the radial direction, and the capillary arm 22 is also pivotally connected via the connecting pin 36 .

By the way, as clearly shown in FIG. 2, the spindle shaft 4 is cut with a key groove portion 26 that extends along the entire longitudinal length of the slot 16 and the widened portion 17 and passes through the center line of the bottom wall. In 26, a Kipart shrine 27 consisting of nine sticks is received so as to extend over the entire length. Via this key member 27, the disc-shaped driver 8 is restricted so that it can slide only in the axial direction as described above.

A first annular driver 24 guided in the axial direction by a key member 27 is slidably fitted into the left side portion of the enlarged diameter portion 14 of the spindle shaft 4 in FIG. First driver 24 of diameter section 14 and large diameter section 1
A second driver 25 having the same shape as the first driver 24 is similarly fitted into the middle portion of the driver 5 . In the outer peripheral surfaces of both of these drivers 24 and 25, annular grooves 24a and 25a are respectively provided in the circumferential direction similarly to the disk-shaped member 8 described above, and each of the annular grooves 24a and 25a has a second As shown in the figure, cam followers 31 and 32 provided at each pair of fork-shaped free ends of cam handles 28 and 29 are engaged with each other in a movable manner. As clearly shown in FIG. 2, the cam levers 28 and 29 have their intermediate portions pivoted by pivots 41 and 42 along an axis perpendicular to the spindle shaft 4, and the drivers 24 and 25 are connected to the pivots 41 and 42 from the pivots. A cam follower 43 is provided at the free end of a portion of each lever extending toward the opposite side.
, 44 are provided.

A cam mechanism section is arranged side by side on the side of the spindle mechanism section 1, and a pair of end cams 45 and 46 are coaxially fixed to a cam shaft which is rotationally driven by a drive means (not shown). On each cam surface of these end cams 45 and 46,
Corresponding cam followers 43, 44 are removably engaged. Note that the cam followers 43 and 44 are connected to each end cam 45.
, 46 so as to follow the cam surfaces of each cam follower 4.
Each of the cam levers 28 and 29 is resiliently biased by a spring means (not shown) in a direction to press the cam levers 3 and 44 toward each cam surface.

The rear end of a relatively long first drive lever 33 received in the slot 16 is fixed to the first driver 24 with a screw, and the front end of the first drive lever 33 is fixed to the widened part 17. has reached.

The first drive lever 33 has a relatively long U-shape with an open front end, as clearly shown in FIG. 2
-1
It is slidably received within the U-shaped portion. Therefore, both drive levers 33, 34 are connected to each corresponding driver 24.
, 25 and can be displaced in the axial direction of the spindle shaft 4 independently of each other.

At the front end of the first drive lever 33, there is a pair of support parts 33 that rise upwards from the widened part 17 and face each other.
A is formed, and both ends of the connecting bin 35 along the axis perpendicular to the spindle shaft 4 are supported by the supporting portion 33a. Further, the above-described connecting pin 36 is supported in a clevis-shaped portion formed at the front end of the second drive lever 33 so as to be parallel to the connecting pin 35 . A slit 22d is formed in the short arm portion 22b of the capillary arm 22 in a direction perpendicular to the guide groove 22c, that is, along the axis of the spindle shaft 4. A pivoted roller 37 is rotatably received. This roller 37
A circumferential groove is provided on the outer circumferential surface of the second drive lever 34, and when the circumferential groove engages with the above-mentioned lug 27 and the roller 37 rolls, the front end of the second drive lever 34 is rotated. are guided, and the displacement of each connecting pin 35, 36 is regulated.

An annular disk 47 is fixed coaxially to the left end surface of the enlarged diameter portion 14 of the spindle shaft in FIG. 1 with a screw.
The disk 47 has a pin 4 protruding from its left end surface.
8 is fixed. In addition, the above-mentioned both end surface cams 45,
One end of a slide lever 50 whose both ends are slidably supported is engaged with the outer circumferential surface of a cam 49 coaxially and integrally provided with a camshaft having a camshaft 46 via a cam follower 53. , the slide lever 50 reciprocates in accordance with the rotation of the cam 49.

A slider 51, which is biased in a direction protruding along the end surface of the disk 47 and toward the pin 48, is slidably supported on the main body provided in the middle of the slide lever 50. A U-shaped groove 52 formed in the protruding end of the slider 51 in the protruding direction allows the pin 4 to be
8 are slidably engaged so as to be sandwiched in the diametrical direction. Therefore, the disk 47 can rotate in response to the slide lever 50 reciprocating due to the rotation of the cam 49.

Next, the operation procedure of this embodiment will be described below.

By driving the cam shaft and rotating each end cam 45, 46, each cam lever 28, 29 swings according to the shape of each cam surface, and each corresponding driver 24, 25
moves back and forth along the axial direction of the spindle shaft 4. Therefore, the capillary arm 22 can be caused to perform various movements shown below.

For example, since the first driver 24 is not displaced in a section where the undulations of the cam surface of the end cam 45 do not change, the connecting pin 3
5 is in a fixed state, and when the undulation of the cam surface of the end cam 46 changes during that time, the second driver 25 is displaced in the direction of arrow C shown in FIG. 2, and the connecting pin 36 is driven. Therefore, the capillary tube 23 can be moved in an arc around the axis of the connecting pin 35 as shown by the arrow D in FIG. Contrary to the above, if the connecting pin 35 is driven while the connecting pin 36 is in a fixed state, the distance between the two connecting pins 35 and 36 changes, so the capillary tube 23 is rotated around the connecting pin 36. Although not an arcuate movement, it is possible to similarly make a curved movement around the axis of the connecting pin 36, as shown by arrow D in FIG. Furthermore, by driving both connecting pins 35 and 36 in the same direction while maintaining their relative positional relationship, the capillary tube 23 is moved closer to and away from the motor 2 as shown by arrow F in FIG. It can be moved linearly in the front-back direction.

Further, due to the rotation of the cam 49, the slide lever 50 reciprocates as shown by the arrow G in FIG. The spindle shaft 4 can be rotated by a predetermined angle by rotating it as shown by the arrow H. In this case, the capillary tube 23 can also be swung around the axis of the spindle shaft 4 as shown by the arrow H. It can be exercised.

In this way, the rotation of each cam 45, 46, and 49 allows the capillary tube 23 to perform various movements depending on the shape of each cam surface, so that, for example, as shown in FIG. When hooking the copper wire 21 to the riser 54, first move the tip of the capillary tube 23 from the initial position toward point (2) by moving the connecting pin 35 forward while rotating the connecting pin 36. Can be done. Next, when moving from point (2) toward point (2), both the connecting pins 35 and 36 are both advanced, and when moving from point (2) toward point (2), only the connecting pin 36 is advanced. When moving from point ■ to point ■, rotate the spindle shaft 4 and move the connecting pin 3.
5 is moved forward, and when moving from point ■ toward point ■, the connecting pin 36 is moved backward, and when moving from point ■ to point ■, the spindle shaft 4 is moved from point ■ to ■. are rotated in opposite directions and by approximately the same amount, and when moving from point (■) toward point (2), both connecting pins 35, 36 are both moved backward. Then, while rotating the spindle shaft 4, both connecting pins 35 and 36 are moved toward the initial position of the next winding operation, and the hooking operation is completed.

A wire guide jig 55 is fixed to the right front end of the rod 7 in FIG. by the way,
When winding wires around the armature of the motor 2, a predetermined number of core teeth are used as one set, and the wire is wound by rotating the capillary arm 22 together with the spindle shaft 4. It has an arcuate inner circumferential surface that can come into contact with the outer circumferential surface of the core teeth, and is formed in a substantially trapezoidal cross-sectional shape so that the copper wire 21 can be guided into the corresponding core slot 1. That is, the wire guide jig 5 is attached to the outer peripheral surface of one set of core teeth.
Winding operation is performed by bringing the arcuate inner peripheral surfaces of No. 5 into contact with each other. In addition, during this winding, each cam 4 is fixed by fixing the camshaft with an electromagnetic clutch (not shown).
5, 46, and 49, the capillary arm 22 can perform the winding operation on the armature.

[Effects of the Invention] As described above, according to the present invention, the wire supply port can be moved three-dimensionally by appropriately driving the rotation shaft and the pair of connecting shafts, so that the structure is simple. This makes it easy not only to wind the motor armature, but also to hook the commutator to the rider.The hooking work can be done automatically without manual intervention, and the winding work can be done easily. The effects are extremely large, such as improving efficiency and reducing costs.

[Brief explanation of the drawing]

FIG. 1 is an axial sectional view showing the rear part of a spindle machine of a winding device according to the present invention. FIG. 2 is a perspective view of a main part of the rear part of the spindle machine. FIG. 3 is an explanatory diagram showing the hooking operation. 1... Spindle machine rear part 2... Motor 3... Frame 4... Spindle shafts 5a, 5b... Ball bearings 6a, 6b... Bearing 7... Rod
7a... Annular groove 8... Disc-shaped driver 8a...
Annular groove 9...Fork lever 11...Cam follower 12...Small cam follower 13...Slots 1 and 14
...Enlarged diameter part 15...Large diameter part 16...Slot 17...Enlarged width part 18...Removed part
21... Copper wire 22... Capillary arm 22a... Long side part 22b... Short side part 22c.
...Guide groove portion 22a...Slit 23...Capillary tube 24...First driver 25...Second driver 2
4 a, 2 5 a... Annular groove 26... Key groove portion 27... Key part shrine 28, 2
9...Cam levers 31, 32...Cam follower 33...First drive lever 33a...Support part 34...Second drive lever 35, 36...Connection pin 37...Roller 4L42・
...ltb 43, 44...cam follower 45,
46... End cam 47... Disc 48... Pin
49...Cam 50...Slide lever 51.
... Slider 52 ... U-shaped groove 53 ... Cam follower 54 ... Riser 55 ... Wire guide jig procedure amendment (voluntary) September 21, 1999 1. Case Description 1999 Patent Application No. 50927 2. Name of the invention: Motor circuit winding device 3. Person making the amendment Name of relationship to the case 4. Agent residence 〒102

Claims (2)

[Claims] (1) A device for winding a wire around a motor rotor, comprising: an arm body having a wire supply port at a free end for supplying the wire toward the motor rotor; A rotation shaft that guides the arm body in a reciprocating manner in an axial direction along the direction of contact and separation in order to move the arm body toward and away from the motor rotor, and a rotation shaft that can rotate about the axis, and a rotation shaft that is spaced apart from each other in the radial direction of the arm body. 1. A winding device for a motor rotor, comprising: a pair of connecting shafts pivotally mounted at a distance; and a pair of driving means capable of individually pushing and pulling both the connecting shafts in the axial direction. (2) The arm body has an L-shape consisting of a long side and a short side, the wire supply port is provided at a free end of the long side, and the wire supply port is provided at both ends of the short side. 2. The motor rotor winding device according to claim 1, wherein both of the connecting shafts are pivotally connected to each other.