JP2011250597A - Cable peeling device and rotary electric machine having coil pelt by the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable peeling device that can set a peeling length arbitrarily, facilitates centering of a notch mechanism and a rotation mechanism, can peel with little decentering, and requires no return spring.SOLUTION: A cable peeling device comprises: a cutting blade; a rotation mechanism to rotate the cutting blade in a circumferential direction of a cable to be cut; a notch mechanism to notch cable coating using the cutting blade; and a peeling mechanism to peel a cable coating using the cutting blade. A link mechanism is disposed in the notch mechanism to convert a motor drive into a reciprocate of the cutting blade in a vertical direction with regard to the cable, and cutting blades are arranged in a nearly equal interval on a circumference which is a concentric circle of the cable to be cut.

Description

  The present invention relates to a coated electric wire peeling device and a rotating electric machine having a coil peeled by the peeling device, and in particular, a device for accurately peeling a coated wire coating in a short time, and the coating accuracy by this device. The present invention relates to a highly reliable rotating electrical machine that uses a well-separated coated electric wire as a coil.

  Conventional stripped-wire stripping devices have, as means for stripping the sheath of the coated wire, two V-shaped blades arranged so as to be able to reciprocate, and these blades from the outside of the coated wire. In the state where the first motor is driven toward the wire and moved forward to the set position at the set speed, and the blade is cut into the coating material of the electric wire, and the blade is cut into the coating material of the electric wire, And a rotation mechanism that rotates the blade along the periphery of the electric wire by driving the second motor.

Since the two blades are V-shaped in this coated wire peeling device, the coating material is cut at four locations by the cutting mechanism, and in this state, the blade is rotated by the rotating mechanism, The covering material is cut into a ring shape and peeled off. After the peeling of the covering material is completed, the blade is returned to the original position by the return spring provided in the cutting mechanism.
Moreover, the length which peels the coating agent of a covered electric wire is set by making a covered electric wire contact the stopper member provided in the peeling length setting part of the peeling apparatus of a covered electric wire (for example, refer patent document 1). .

JP 2002-305822 A (page 3-4, FIG. 1)

In the conventional stripped-wire stripping device described in Patent Document 1, since the length for stripping the insulating material is set by the stopper member, an arbitrary stripping length cannot be set, and the degree of freedom of stripping treatment There was a problem of lack.
In addition, the forward movement of the blade used for peeling is performed by a motor, but the backward movement of the blade, that is, movement in the return direction, is performed by a return spring, and a return spring that is an extra part is required. In addition, there is a problem that the spring is inferior in durability.
Further, in this conventional coated wire peeling device, it is difficult to center the cutting mechanism and the rotation mechanism, and the core is likely to be misaligned. There was also a problem that caused trouble.

  The present invention has been made in order to solve the above-described problems. The purpose of the present invention is to arbitrarily set the peeling length, no return spring is required, and centering of the cutting mechanism and the rotation mechanism. It is an object to obtain a highly reliable rotating electrical machine having a stripping device for a covered electric wire and a coil stripped by the stripping device, which is easy and can be stripped with little eccentricity.

  The coated wire peeling apparatus according to the present invention includes a cutting blade, a rotating mechanism for rotating the cutting blade in the circumferential direction of the coated electric wire to be cut, and a cutting blade for cutting the coated blade into the coated electric wire. A stripping device for a covered electric wire comprising a mechanism and a peeling mechanism for peeling the coating of the covered electric wire with a cutting blade, wherein the rotating mechanism rotates the main shaft by the first motor, the main shaft, and the first motor. A hollow cylindrical opening / closing shaft that is formed simultaneously with the main shaft and is movable in the axial direction with respect to the main shaft is provided on the inner peripheral portion of the main shaft. A plurality of link mechanisms to which blades are attached are coupled, and the cutting blades are arranged at substantially equal intervals on a circumference that is concentric with the coated electric wire to be cut, and the cutting mechanism includes a second motor and A second transmitter that moves the opening and closing shaft in the axial direction by the opening and closing shaft and the second motor And a plurality of link mechanisms to which the cutting blade is attached, and the link mechanism converts the axial movement of the opening / closing shaft into a reciprocating motion in the vertical direction with respect to the covered electric wire of the cutting blade. The peeling mechanism is formed by a third motor, a base plate, and a third transmission mechanism that moves the base plate in the axial direction by the third motor. The base plate includes at least a rotation mechanism and a cutting mechanism. It is installed.

  The rotating electrical machine according to the present invention is formed by forming a coil with a covered electric wire that has been peeled off by the above-described covered wire peeling device.

  The coated wire peeling apparatus according to the present invention includes a cutting blade, a rotating mechanism for rotating the cutting blade in the circumferential direction of the coated electric wire to be cut, and a cutting blade for cutting the coated blade into the coated electric wire. A stripping device for a covered electric wire comprising a mechanism and a peeling mechanism for peeling the coating of the covered electric wire with a cutting blade, wherein the rotating mechanism rotates the main shaft by the first motor, the main shaft, and the first motor. A hollow cylindrical opening / closing shaft that is formed simultaneously with the main shaft and is movable in the axial direction with respect to the main shaft is provided on the inner peripheral portion of the main shaft. A plurality of link mechanisms to which blades are attached are coupled, and the cutting blades are arranged at substantially equal intervals on a circumference that is concentric with the coated electric wire to be cut, and the cutting mechanism includes a second motor and A second transmitter that moves the opening and closing shaft in the axial direction by the opening and closing shaft and the second motor And a plurality of link mechanisms to which the cutting blade is attached, and the link mechanism converts the axial movement of the opening / closing shaft into a reciprocating motion in the vertical direction with respect to the covered electric wire of the cutting blade. The peeling mechanism is formed by a third motor, a base plate, and a third transmission mechanism that moves the base plate in the axial direction by the third motor. The base plate includes at least a rotation mechanism and a cutting mechanism. It is mounted and the cutting mechanism is excellent in durability, and it is easy to align the coated wire at the cutting center, making it possible to easily cut with little eccentricity. The centering of the rotating mechanism is also easy.

  The rotating electrical machine according to the present invention is a coil formed of a covered electric wire peeled off by the above-described covered electric wire peeling device, and has good solderability when connecting the coil to another terminal member. Weldability is also improved and it has high reliability.

It is a schematic diagram which shows the whole structure of the peeling apparatus of the covered electric wire concerning Embodiment 1 of this invention. It is a cross-sectional schematic diagram which shows the link mechanism which is the principal part of the peeling apparatus of the covered electric wire concerning Embodiment 1 of this invention. It is a front schematic diagram which shows arrangement | positioning of the cutting blade attached to the link mechanism of the peeling apparatus of the covered electric wire concerning Embodiment 1 of this invention. It is a front schematic diagram which shows the base used for the link mechanism of the peeling apparatus of the covered electric wire concerning Embodiment 1 of this invention. It is a front schematic diagram which shows the link bar used for the link mechanism of the peeling apparatus of the covered electric wire concerning Embodiment 1 of this invention. It is a front schematic diagram which shows the swing plate used for the link mechanism of the peeling apparatus of the covered electric wire concerning Embodiment 1 of this invention. It is a cross-sectional schematic diagram which shows the structure of the coupling | bond part of the link bar in the link mechanism shown in FIG. 2 in the peeling apparatus of the covered electric wire concerning Embodiment 1 of this invention, a base, and a swing plate. In the peeling apparatus of the covered electric wire of this Embodiment, it is a perspective schematic diagram which shows the state in which a cutting blade is cut in the coating | cover of a covered electric wire coil.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of a stripping device for a covered electric wire according to the present invention will be described with reference to the drawings, and a preferred embodiment of a rotating electrical machine having a coil stripped by the peeling device will be described.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram showing an overall configuration of a covered wire peeling apparatus according to Embodiment 1 of the present invention.
As shown in FIG. 1, a stripped-wire stripping device (referred to as a stripping stripping device) 100 according to the present embodiment includes a first motor 1 of a three-phase AC motor and a first motor 1 attached to the first motor 1. 1 pulley 2, a hollow cylindrical main shaft (hereinafter referred to as a main shaft) 5 to which a main shaft side pulley 4 is integrally fixed, and a first pulley 2 and a main shaft side pulley 4. Is provided to the main shaft 5.

The main shaft 5 is rotatably supported by the first housing 9 via a bearing 6 and a sleeve 8, and the main shaft 5 is rotated by driving the first motor 1.
A second housing 11 is provided in contact with the wall portion opposite to the wall portion supporting the main shaft 5 of the first housing 9.

A hollow cylindrical opening / closing shaft 13 is mounted on the inner peripheral portion of the main shaft 5 via a bearing 14, and the opening / closing shaft 13 can move in the axial direction and can rotate with the main shaft.
A hollow cylindrical first coil guide 15 is inserted through the hollow portion of the opening / closing shaft 13. In FIG. 1, a coil of a covered wire (covered wire) is inserted into the inner peripheral portion of the first coil guide 15. 16) is held.
In addition, a second coil guide 17 is provided on the wall portion of the second housing 11 opposite to the wall portion in contact with the first housing 9.

Further, as shown in FIG. 1, the coating peeling apparatus 100 according to the present embodiment is attached to the second motor 26 of the servo motor and the second motor 26 via the first coupling 27, and The first ball screw 28 rotated by the second motor 26 and a first slide block 29 for converting the rotational force of the first ball screw 28 into a moving force in the axial direction are provided.
The first slide block 29 is provided with a bearing holder 30, and a holder guide 31 that is integrally fixed to the opening / closing shaft 13 is attached to the inner peripheral portion of the bearing holder 30 via a bearing 32. Yes.
That is, the first slide block 29, the bearing holder 30, the holder guide 31, and the bearing 32 are mechanisms that convert the rotation of the second motor 26 into the movement of the opening / closing shaft 13 in the axial direction.

  Further, as shown in FIG. 1, the coating peeling apparatus 100 of the present embodiment is attached to the third motor 33 of the servo motor and the third motor 33 via the second coupling 34, and And a base plate 36 provided with a second slide block 39 for converting the rotational force of the second ball screw 35 into movement in the axial direction.

That is, the base plate 36 moves in the axial direction by driving the third motor 33.
However, on the base plate 36, components constituting the coating peeling apparatus 100 except for the third motor 33, the second coupling 34, and the second ball screw 35 are placed. The covered electric wire 16 is also free for the movement of the base plate 36.
As the base plate 36 moves in the axial direction, the cutting blade 19 moves in the axial direction, and the axial length of the stripping of the covered electric wire 16 can be adjusted.
As shown in FIG. 1, the coating peeling apparatus 100 of the present embodiment is provided with three link mechanisms 18 to which cutting blades 19 are attached at the end of the opening / closing shaft 13 on the first housing 9 side. It has been.

FIG. 2 is a schematic cross-sectional view showing a link mechanism which is a main part of the covered wire peeling apparatus according to Embodiment 1 of the present invention.
FIG. 3 is a schematic front view showing the arrangement of cutting blades attached to the link mechanism of the apparatus for peeling a covered electric wire according to Embodiment 1 of the present invention.
FIG. 4 is a schematic front view showing a pedestal used in the link mechanism of the device for peeling a covered electric wire according to Embodiment 1 of the present invention.
FIG. 5 is a schematic front view showing a link bar used in the link mechanism of the covered electric wire peeling apparatus according to Embodiment 1 of the present invention.
FIG. 6 is a schematic front view showing a swing plate used in the link mechanism of the covered electric wire peeling apparatus according to Embodiment 1 of the present invention.

As shown in FIG. 2, in the coating peeling apparatus 100 of the present embodiment, the link mechanism 18 is engaged with a pedestal 20 to which a cutting blade 19 is attached at one end, and one end is engaged with the other end of the pedestal 20. The link bar 21 is disposed so as to be substantially orthogonal to the pedestal 20 and the other end is connected to the opening / closing shaft 13 via the link pin 22, and the engagement portion between the link bar 21 and the pedestal 20 is mounted. A pair of swing plates 23 that determine the mounting position of the base 20 with respect to the link bar 21 are provided.
The amount of cutting of the cutting blade 19 can be finely adjusted by changing the mounting position of the pedestal 20 with respect to the link bar 21 by the swing plate 23.

As shown in FIG. 3, in the coating peeling apparatus 100 according to the present embodiment, three link mechanisms 18 to which cutting blades 19 are attached are provided, and the three cutting blades 19 are concentric with the coated electric wires 16. The covered electric wire 16 is surrounded on the circumference to be arranged at substantially equal intervals.
As shown in FIG. 4, the pedestal 20 has a fulcrum 20 a formed at substantially the center thereof, and an engaging hole 20 b through which the eccentric pin 24 is movably inserted is formed at the other end.

Further, as shown in FIG. 5, the link bar 21 has an inverted L shape, and a link pin 22 for connecting the link bar 21 to the opening / closing shaft 13 at the other end which is the bottom side of the inverted L shape. An engagement hole 21c is formed through which is inserted. In addition, an engagement hole 21a that rotatably supports the eccentric pin 24 and a screw hole 21b into which the fixing bolt 25 is screwed are formed at one end on the head side of the inverted L shape.
As shown in FIG. 6, the swing plate 23 is provided with a long hole 23 b through which the fixing bolt 25 is movably inserted, and an engagement hole 23 a that rotatably supports the eccentric pin 24.

FIG. 7 is a schematic cross-sectional view showing the structure of the connecting portion of the link bar, pedestal, and swing plate in the link mechanism shown in FIG.
As shown in FIG. 7, the fixing bolt 25 screwed to the link bar 21 is movably inserted in the long hole 23 b of the swing plate 23, and the eccentric pin 24 is engaged with the engagement hole 21 a of the link bar 21. And the engagement hole 23a of the swing plate 23 are rotatably supported, and are inserted in the engagement hole 20b of the base 20 so as to be movable.

Next, operation | movement of the coating peeling apparatus 100 of this Embodiment is demonstrated.
The driving of the first motor 1 rotates the main shaft 5 via a first transmission mechanism that is formed by the first pulley 2, the belt 3, and the main shaft-side pulley 4 and rotates the main shaft 5. The rotation of the main shaft 5 simultaneously rotates the opening / closing shaft 13 and rotates the link mechanism 18 coupled to the opening / closing shaft 13 by the link pin 22. As a result, the cutting blade 19 attached to one end of the pedestal 20 forming the link mechanism 18 rotates.
That is, the first motor 1, the first transmission mechanism, and the main shaft 5 form a turning mechanism for the cutting blade 19.

  The second motor 26 is driven by an opening / closing shaft 13 formed by a first coupling 27, a first ball screw 28, a first slide block 29, a bearing holder 30, a holder guide 31 and a bearing 32. The opening / closing shaft 13 is moved in the axial direction via the second transmission mechanism that moves the shaft in the axial direction. This movement of the opening / closing shaft 13 is converted into a vertical reciprocation of the cutting blade 19 attached to the link mechanism 18 with respect to the covered electric wire 16 by the action of the link mechanism 18 coupled to the opening / closing shaft 13.

Specifically, when the opening / closing shaft 13 moves toward the first housing 9 in the axial direction by driving the second motor 26, the link bar 21 connected to the opening / closing shaft 13 in the link mechanism 18 moves in the axial direction. And pivots about the link pin 22 in the vertical direction. Then, the other end of the pedestal 20 engaged with the link bar 21 via the swing plate 23 moves upward, and one end to which the cutting blade 19 of the pedestal 20 is attached moves downward about the fulcrum 20a. Then, the cutting blade 19 is cut into the covering of the covered electric wire 16.
That is, the second motor 26, the second transmission mechanism, the opening / closing shaft 13, and the link mechanism 18 form a cutting mechanism.

By driving the third motor 33, the third transmission mechanism formed by the second coupling 34, the second ball screw 35, and the second slide block 39 for moving the base plate 36 in the axial direction is operated. The base plate 36 is moved in the axial direction. By the movement of the base plate 36, the cutting blade 19 moves in the axial direction, and the covering of the covered electric wire 16 whose axial length is adjusted is peeled off.
That is, the third motor 33, the third transmission mechanism, and the base plate 36 form a peeling mechanism.

Moreover, in the coating peeling apparatus 100 of this Embodiment, the attachment position of the base 20 with respect to the link bar 21 is adjusted by adjusting the position of the eccentric pin 24 attached to the link bar 21 and the engagement hole 20b of the base 20. Set arbitrarily, and finely adjust the cutting amount of the cutting blade 19 into the covering of the covered electric wire 16.
As a fine adjustment of the cutting amount of the cutting blade 19, after the positions of the eccentric pin 24 and the engagement hole 20b are determined, the bolt 25 is inserted into the long hole 23b of the swing plate 23 and screwed to the link bar 21. The relative position between the link bar 21 and the base 20 is fixed.

Next, the coating peeling process of the covered electric wire 16 will be described.
FIG. 8 is a schematic perspective view showing a state in which the cutting blade is cut into the covering of the covered electric wire in the covered electric wire peeling apparatus of the present embodiment.
In FIG. 8, only one of the cutting blades 19 attached to the base 20 of the three link mechanisms 18 is shown.
In the first step, the three cutting blades 19 rotate in the circumferential direction of the covered electric wire 16 by driving the first motor. In the second step, as shown in FIG. 8, by driving the second motor 26, the cutting blade 19 is cut to a predetermined depth in the covering of the rotating covered electric wire 16, and the cutting in the circumferential direction is cut into the covering. Form. In the third step, the cutting blade 19 moves in the axial direction by driving the third motor 33, and the covering of the covered electric wire 16 having a predetermined axial length is peeled off.

In the coating peeling apparatus 100 of the present embodiment, the peeling length by the cutting blade 19 can be arbitrarily set by the third motor 33 that is a servo motor, and thus, for example, a plurality of peelings within one workpiece (coil). The length can be set.
Further, by simultaneously operating the second motor 26 and the third motor 33, the depth of cut into the sheath can be changed during the stripping of the sheathed wire 16, and taper or stepped cutting is possible. It becomes.

Further, in the coating peeling apparatus 100 of the present embodiment, the second motor 26 performs the forward movement and the return movement of cutting the cutting blade 19 into the coating of the coated electric wire, and the return spring at the time of the backward movement is provided. It is not necessary and the durability of the cutting mechanism is excellent.
Further, although not shown, a mechanism for automatically measuring the cutting amount of the cutting blade 19 (referred to as a cutting amount automatic measuring mechanism) is provided, and a signal from the cutting amount automatic measurement mechanism is fed back to the second motor 26, By controlling the driving of the second motor 26, the cutting blade 19 can be automatically driven.
That is, even if the cutting blade 19 is worn, it is possible to automatically follow up the worn portion, and it is not necessary to readjust the link mechanism 18 and no trouble is required during automatic operation. Moreover, the peeling diameter of the covered electric wire 16 which is a coil does not fluctuate, leading to stabilization of coil quality.

Moreover, in the coating peeling apparatus 100 of this Embodiment, since the three cutting blades 19 are provided surrounding the covered electric wire 16, the alignment which arrange | positions the covered electric wire 16 in the cutting center is easy, and it is eccentric. Less cutting can be easily performed. In addition, centering of the cutting mechanism and the rotation mechanism is facilitated.
Further, since the link mechanism 18 rotates together with the cutting blade 19, cutting with a taper or a step is possible, and cutting with a single copper wire (without coating) is also possible.
In the coating peeling apparatus 100 of the present embodiment, three link mechanisms 18 to which cutting blades 19 are attached are provided, and the three cutting blades 19 are arranged on a circumference that is concentric with the coated electric wire 16. Although it surrounds the covered electric wire 16 and is arranged at substantially equal intervals, if a plurality of cutting blades 19 are similarly arranged, the number of link mechanisms 18 to which the cutting blades 19 are attached is not limited to three. There should be multiple.

Embodiment 2. FIG.
The rotating electrical machine according to the second embodiment of the present invention is a rotating electrical machine having a coil peeled off by the coating peeling apparatus according to the first embodiment.
That is, the rotating electric machine uses the covered electric wire from which the coating has been peeled off by the coating peeling device according to the first embodiment for the stator coil and the rotor coil.

In the rotating electrical machine of the present embodiment, since the coated electric wire having the coating peeled off by the coating peeling apparatus of the first embodiment is used for the stator coil and the rotor coil, the coating peeling is performed on the surface of the peeling portion of the coil. It contains a spiral pattern formed by the cutting blade of the device.
Therefore, in the rotating electrical machine of the present embodiment, the solderability when connecting the coil to another terminal member is good, the weldability is also improved, the manufacturing workability is excellent, and the high reliability is achieved. Have.
In particular, the alternator using the stator coil from which the coating of the lead wire is peeled off by the coating peeling apparatus of the first embodiment is particularly improved in manufacturing workability and reliability.

  The coated wire stripping apparatus according to the present invention is easy to set the stripping length of the coated wire and to center the coated wire to be arranged. Used.

1 first motor, 2 first pulley, 3 belt, 4 spindle side pulley, 5 spindle,
6 bearing, 8 sleeve, 9 first housing, 11 second housing,
13 open / close shaft, 14 bearing, 15 first coil guide, 16 covered wire,
17 second coil guide, 18 link mechanism, 19 cutting blade, 20 pedestal,
20a fulcrum, 20b engagement hole, 21 link bar, 21a engagement hole, 21b screw hole,
21c engagement hole, 22 link pin, 23 swing plate, 23a engagement hole,
23b long hole, 24 eccentric pin, 25 fixing bolt, 26 second motor,
27 1st coupling, 28 1st ball screw, 29 1st slide block,
30 Bearing holder, 31 Holder guide, 32 Bearing,
33 third motor, 34 second coupling, 35 second ball screw,
36 Base plate, 39 Second slide block, 100 Coating peeling device.

Claims (8)

With a cutting blade, a turning mechanism for rotating the cutting blade in the circumferential direction of the covered electric wire to be cut, a cutting mechanism for cutting the cutting blade into the covering of the covered electric wire, and the cutting blade, A stripping device for a covered electric wire, comprising a peeling mechanism for peeling the coating of the coated electric wire,
The rotation mechanism is formed by a first motor, a main shaft, and a first transmission mechanism that rotates the main shaft by the first motor, and an inner peripheral portion of the main shaft rotates simultaneously with the main shaft, A hollow cylindrical opening / closing shaft movable in the axial direction with respect to the main shaft is provided, and a plurality of link mechanisms to which the cutting blade is attached are coupled to the opening / closing shaft, and the cutting blade is cut. Are arranged at substantially equal intervals on a circumference that is concentric with the above-mentioned covered electric wire,
The cutting mechanism is coupled to the second motor, the opening / closing shaft, the second transmission mechanism for moving the opening / closing shaft in the axial direction by the second motor, and the opening / closing shaft, and the cutting blade is attached thereto. A plurality of link mechanisms, wherein the link mechanism converts the axial movement of the open / close shaft into a vertical reciprocating motion of the cutting blade with respect to the covered electric wire,
The peeling mechanism is formed by a third motor, a base plate, and a third transmission mechanism for moving the base plate in the axial direction by the third motor, and the base plate includes at least the turning mechanism and the cutting mechanism. And stripping device for coated electric wires.   The number of link mechanisms to which the cutting blades are attached is three.   The link mechanism has a fulcrum substantially in the center, a pedestal to which a cutting blade is attached at one end, one end engaged with the other end of the pedestal, the other end connected to an opening / closing shaft, and A link bar disposed so as to be substantially orthogonal to the pedestal; and a swing plate for determining a mounting position of the pedestal with respect to the link bar mounted on an engaging portion between the pedestal and the link bar, and the swing plate 3. The apparatus according to claim 1, wherein the mounting position of the base with respect to the link bar is changed to finely adjust the cutting amount of the cutting blade.   The covered electric wire according to any one of claims 1 to 3, wherein the third motor controls the movement of the base plate in the axial direction to adjust the peel length of the covered electric wire. Peeling device.   The stripping device for a covered electric wire according to any one of claims 1 to 4, wherein the second motor and the third motor are operated simultaneously.   An automatic cutting amount measuring mechanism for automatically measuring the cutting amount of the cutting blade is provided, and a signal from the automatic cutting amount measuring mechanism is fed back to the second motor to control the driving of the second motor. The stripping device for a covered electric wire according to any one of claims 1 to 5, wherein the stripping device is a stripping device.   A rotating electrical machine, wherein a coil is formed by a covered electric wire peeled off by the covered electric wire peeling device according to any one of claims 1 to 6.   The rotating electrical machine according to claim 7, wherein the coil is a stator coil of an AC generator.

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