JP4619057B2 - Winding device for armature - Google Patents

Description

  The present invention relates to an armature winding device.

Conventionally, there are various types of winding devices for winding a coil around an armature of an electric motor. For example, nozzles having the same number as the number of core slots are arranged radially with respect to the axis of the armature. There is one in which a coil wire is wound between core slots by relative movement (displacement in the axial direction and circumferential direction) between the armature and the armature (see, for example, Patent Document 1).
JP-A-12-308315

  However, in the winding device as described above, the same number of coil bobbins as the nozzles are arranged in order to pass the coil wires through each of the nozzles, and the coil wires are drawn from the coil bobbins and supplied to the nozzles for winding. I was making a line. In that case, since it is necessary to arrange many coil bobbins, there existed a problem that the storage place of a coil bobbin will become large. In addition, a coil wire supply magazine is provided between the nozzle and the coil bobbin, thereby drawing out the coil wire from the coil bobbin, feeding it to the nozzle, and cutting the coil wire. There was a problem that the same number would be provided, resulting in an increase in the size of the apparatus.

In order to solve such a problem and realize a narrow space for the coil bobbin and a compact device, in the present invention, a nozzle capable of relative displacement in the axial direction and circumferential direction with respect to the armature is provided. A winding device for an armature, wherein a plurality of coil strands are drawn out from the plurality of nozzles to wind the coil strands between core slots of the armature, A plurality of magazine pipes provided in the same number as the nozzles adjacent to the side opposite to the winding side of the armature and stocking the coil strands, and the coil wires are fed out from the coil bobbins and put into the magazine pipe to a coil wire moving means provided displaceably while gripping the coil wire to move up, the coil wire that has been placed in the magazine pipe and the coil wire To a cutting means for cutting, have a coil wire delivery means for delivering said coil wire to the nozzle from the magazine pipe, the plurality of nozzles, radially and circumferentially with respect to the axis of the armature A movable nozzle that can be reciprocated linearly arranged at equal pitches in the direction, and a fixed that is formed to be continuous with the movable nozzle and curved in an arc shape and parallel to the axis of the armature The plurality of magazine pipes are arranged so as to be parallel to the axis of the armature and to be cylindrical as a whole .

  In particular, the magazine and the nozzles can be relatively displaced in the arrangement direction of the plurality of nozzles, and at least the coil wire moving means and the cutting means are provided in a number smaller than the total number of the nozzles. good. Further, it is preferable that the number of the coil strands that can be put into the magazine at a time is smaller than the total number of the nozzles. Moreover, it is preferable that a peeling means for removing the coating of the coil wire is provided.

  Alternatively, a plurality of nozzles that can be displaced relative to the armature in the axial direction and the circumferential direction are arranged, and a plurality of coil strands are drawn out from the plurality of nozzles, and the coil strands are disposed between the core slots of the armature. A magazine for winding the coil, wherein the same number of nozzles are provided adjacent to the opposite side of the nozzle as to the winding side of the armature, and the coil wire is stocked. A coil wire having a number smaller than the number of the nozzles is put into the magazine from a coil bobbin, and the coil wire put in the magazine is cut to become a coil wire, and the coil wire put in the magazine When the number of coil strands is the same as the number of nozzles, the coil strands may be moved from the magazine to the nozzles.

  As described above, according to the present invention, the magazine and the nozzle can be relatively displaced, and the coil wire displacing means for displacing the coil wire from the coil bobbin to the magazine side and the cutting for cutting the coil wire to be a coil wire. By providing the means, the next coil wire can be cut and stocked in the magazine as a coil wire while the armature is wound by the nozzle. The stock work for the magazine can be performed in multiple steps, and there is no need to prepare a coil bobbin for each nozzle. Therefore, the coil bobbin can be placed in a small space, saving space for the entire device. Can be promoted. Further, since the cut coil wire is supplied to the magazine and the coil wire is not routed from the coil bobbin to the tip of the nozzle as in the prior art, the burden on the winding device due to the tension of the coil wire can be reduced. In addition, since the coil strand cut | disconnected to the length used for one time of winding is supplied to a nozzle and it winds so that the coil strand may be pulled out from a nozzle, a thick coil strand is electrically It is suitable for those wound around the child.

  In particular, since the magazine and the nozzle can be relatively displaced in the arrangement direction of the plurality of nozzles, and at least the coil wire moving means and the cutting means are provided in a number smaller than the total number of nozzles, Reduction and reduction of installation space can be promoted. Further, it is preferable that the number of coil wires that can be put into the magazine at a time is smaller than the total number of nozzles. The magazine is relatively displaceable with respect to the nozzle, and the coil wire placed in the magazine can be aligned with the nozzle on which no coil wire is set. By sending the wire to the nozzle, the coil wire can be set on the nozzle. By repeating this several times, the coil strands can be set to all the nozzles, so the number of coil strands that can be put into the magazine at a time can be less than the total number of nozzles, and the magazine can also be made compact. .

  Further, by disposing a peeling means for removing the coating of the coil wire, for example, in front of the magazine, when the coil wire is sent to the magazine by the coil wire displacing means (for example, both ends of the coil wire). Part) can be removed, and there is no need to perform a peeling operation in a separate process.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view of an essential part showing the entire winding device to which the present invention is applied, and FIG. 2 is a schematic partial side view thereof. In the figure, the frame and the like are omitted, and the fixed part and the movable part are shown in the description of each part.

  As shown in FIG. 1, the same number (for example, 21) of nozzles 2 as the number of core slots of the armature 1 to be wound are arranged. As shown in FIG. 2, the nozzle 2 is a straight line that is perpendicular to the core slot of the armature 1 and is arranged radially at an equal pitch in the circumferential direction with respect to the axis of the armature 1. And a fixed nozzle 2b which is continuous with the movable nozzle 2a and is bent in a ¼ arc shape so as to be parallel to the axis of the armature 1.

  The coil wire 3a fed out from the coil bobbin 3 is delivered so as to reach the fixed nozzle 2b. The coil wire 3b cut to a predetermined length used for one winding from the coil wire 3a is set to all the nozzles 2.

  Further, the armature 1 is supported by the both ends of the motor shaft being gripped by the rotary chucks 4a and 4b, and the rotary chucks 4a and 4b are rotated as indicated by an arrow A in FIG. As shown by B, it can be linearly moved so that it can rotate forward and backward around the axis or reciprocate in the axial direction. The movable nozzle 2a is supported by, for example, a piston type actuator so as to reciprocate as indicated by an arrow C in FIG. Winding is performed while pulling out the coil wire 3b from the nozzle 2 by a movement combining the displacement of the movable nozzle 2a and the above-described displacement of the armature 1. For the winding, for example, a winding method based on the movement of the nozzle and the armature shown in the patent document shown in the background art may be used, and detailed description thereof will be omitted. A pusher 5 is provided for fixing the armature 1 to the commutator.

  On the coil wire supply side (hereinafter referred to as the upstream side) opposite to the winding side of the armature 1 of the fixed nozzle 2b, a plurality of magazine pipes 6a constituting the magazine 6 are nozzles in the illustrated example. 2 and the same number are arranged at equal circumferential pitches. These magazine pipes 6 a are arranged in parallel to the axis of the armature 1 and are formed in a cylindrical shape as a whole, and each intermediate portion is supported by a circular support plate 7. The support plate 7 rotates around the axis of the armature 1 as shown by the arrow D in FIG. 2 and reciprocates in the axial direction as shown by the arrow E. It is driven by an actuator. Therefore, the magazine pipe 6a can be similarly rotated and displaced in the axial direction.

  A cutting cutter 8 as a cutting means is provided in the immediate vicinity of the upstream side of the magazine 6. The cutting cutter 8 only needs to be capable of cutting the coil wire 3a. In the illustrated example, the cutting blade 8 can move reciprocatingly as indicated by the arrow F in FIG. 2, and the coil wire 3a in the protruding direction of the moving blade. It is configured by combining with a fixed blade located between.

  A peeling cutter 9 as a peeling means is provided on the upstream side of the cutting cutter 8. The peeling cutter 9 may be any one that strips off the necessary portion of the coil wire 3a. In the illustrated example, as shown by a cylindrical body having an insertion hole that can guide the coil wire 3a and an arrow G in FIG. A rotary blade that can rotate coaxially with respect to the insertion hole is combined. For example, when the rotary blade is a plurality of spiral blades and the rotary blade is rotated while displacing the coil wire 3a, the coating of the coil wire 3a at that portion can be peeled off.

  These cutting cutters 8 and peeling cutters 9 may be provided in a number smaller than the total number of nozzles 2. When the number of core slots (number of nozzles 2) is as large as 21 as shown in the figure, for example, it is better to provide 7 units, which are 1 / integer of the total number of nozzles 2. Not what you want.

  The number of coil bobbins 3 may be seven according to the number of cutting cutters 8 and peeling cutters 9. In the vicinity of the coil bobbin 3, a straightening machine 11 composed of a pulley row is arranged to correct the bending or twisting of the coil wire 3a fed out from the coil bobbin 3, and the outlet side of the straightening machine 11 (which is opposite to the coil bobbin 3). The feeder 12 is provided on the side. There may be seven straightening machines 11 and feeders 12 each.

  The feeder 12 includes a slider that can reciprocate in the longitudinal direction of the coil wire 3a as shown by an arrow H in FIG. 2 and a clamp mechanism that can grip the coil wire 3a. As the clamping mechanism, for example, two members having V-shaped grooves may be provided so that both V-shaped grooves face each other. By passing the coil wire 3a through the opening formed between the V-shaped grooves and bringing the two members close to and away from each other, the coil wire 3a can be selectively gripped or released by the V-shaped grooves.

  Further, the same number of delivery rods 13 as the nozzles 2 are arranged between the cutting cutters 8 and the peeling cutters 9 so as to be parallel to the axis of the armature 1 and to be cylindrical as a whole. A proximal end portion on the coil bobbin 3 side of the delivery rod 13 is supported by a movable support member 14, and an extending direction end portion on the magazine 6 side is held by a guide pipe 15. The guide pipes 15 are the same number as the nozzles 2 and are arranged at the same pitch as the magazine pipes 6a.

  Next, the supply procedure of the coil wire in the winding device configured as described above will be described below. It is assumed that the coil wire 3a is cut by the cutting cutter 8.

  First, as shown in FIG. 3 (a), the coil wire 3a is gripped by the feeder 12 positioned at the standby position, and the gripped feeder 12 is directed toward the magazine 6 as shown by the arrow H in the figure. The fixed amount L1 is displaced (imaginary line in the figure). As a result, the tip end of the coil wire 3a moves to the magazine 6 side by a predetermined amount L1, and the coil wire 3a corresponding to that amount is fed out from the coil bobbin 3. The predetermined amount L1 is substantially the same as the entire length of the magazine pipe 6a.

  Next, as shown in FIG. 3 (b), the cutting cutter 8 cuts the coil wire 3a from the magazine pipe 6a. Thereby, as described above, the coil strand 3b having a length of the predetermined amount L1 is set in the magazine pipe 3b. At this time, after releasing (releasing) the gripping state of the coil wire 3a, the feeder 12 is returned to the standby position (imaginary line in the figure) as indicated by an imaginary line arrow H in the figure.

  When the coil wire 3a is moved by the feeder 12, the tip of the coil wire 3a that is the winding start side of the coil wire 3b is applied to the coil wire 3a by the peeling cutter 9 along with the movement of the coil wire 3a. The work to remove the coating of the part to be performed is performed at the same time. In this case, the operation start and end timing of the peeling cutter 9 can be determined by, for example, providing a displacement sensor or a limit switch for detecting the displacement of the feeder 12 to detect that the peeling cutter 9 is displaced to a predetermined position. Note that, as described above, the present invention is not limited to peeling only the tip portion of the coil wire 3a, and the coating at the rear end of the coil wire 3b that does not need to be peeled off because the coating is removed during fusing. May be peeled off in advance. Thereby, the fusing efficiency can be improved.

  In the case of the illustrated example, the above operation is performed on the seven coil wires 3a with respect to the 21 nozzles. Therefore, when the seven coil wires 3b are stocked in the magazine 6, the magazine 6 is placed in FIG. As shown by arrow D, the magazine pipe 6a is rotated seven times. Since the magazine 6 is rotated in this manner, in this work process, a slight amount is interposed between the magazine pipe 6a and each of the fixed nozzle 2b and the cutting cutter 8 in order to prevent interference due to the rotation of the magazine pipe 6a. The magazine 6 is positioned so that a gap is generated.

  Then, the above operation is performed on seven new magazine pipes 6a, the coil wire 3a is cut into a predetermined amount L1, and new seven coil wires 3a are stocked in those magazine pipes 6a. Further, the same process is performed for the next seven wires, and 21 coil elements 3b necessary for one armature 1 are stocked in the magazine 6.

  Next, the magazine 6 is rotated by a predetermined angle so that the magazine pipe 6a and the guide pipe 15 are aligned, and the feeding rod 13 is moved to move the coil wire 3b stocked in the magazine pipe 6a to the nozzle 2. As shown by the arrow I in 3 (c), it is displaced toward the magazine 6 side. At this time, the support plate 7 is displaced as shown by an arrow E as shown in FIG. 3C so that the coil wire 3b moves smoothly, so that the gap between the magazine pipe 6a and the nozzle 2 is reduced. It is good to eliminate it. In the illustrated example, since the magazine pipes 6a and the guide pipes 15 are both arranged in the same number as the nozzles 2, the magazine 6 may be rotated by the half pitch of the arrangement of the magazine pipes 6a.

  Due to the displacement of the delivery bar 13, the coil wire 3b is completely moved to the nozzle 2 as shown in FIG. The moving distance L2 at that time may be a distance necessary for moving the coil wire 3b stocked in the magazine 6 from the magazine pipe 6a to the nozzle 2 and exposing the tip of the coil strand 3b from the tip of the movable nozzle 2a by a predetermined amount. . After the coil wire 3b is moved to the nozzle 2, the delivery rod 13 is returned to the standby position as shown by the imaginary line arrow I in the figure.

  When the coil strand 3b is moved to the nozzle 2a and the coil strand 3b is set in all the nozzles 2 as shown in FIG. 2, the coil strand 3b is exposed from the movable nozzle 2a. The front end of the armature 1 is engaged with the riser of the commutator, temporarily fixed by the pusher 5, and the coil wire 3 b is pulled out from the nozzle 2 by the relative movement between the movable nozzle 2 a and the armature 1, and between the core slots of the armature 1. Wind the wire around. When the winding is performed, the magazine 6 and the mechanisms upstream thereof can be operated separately from the sleeve 2, so that the coil wire 3b can be created during the winding. it can. Thereby, efficiency improvement of a winding process can be promoted.

  Since the winding can be performed in this way, the total number of nozzles 2 is set in the winding in which the coil wire 3b is set in the plurality of nozzles 2 and the winding is performed by the combination of the movement of the nozzle 2 and the armature 1. It is not necessary to provide the coil bobbin 3 for a minute, and the installation space for the coil bobbin 3 that takes up a large space when all are placed can be reduced.

  Similarly, in the illustrated example, seven coil wires 3a are processed by 1/3 of the total number of nozzles 2, so that the correction machine 11, the feeder 12, the peeling cutter 9, and the cutting cutter 8 related to the processing are also 7 each. It is only necessary to provide a table, and a significant reduction in size can be achieved with respect to a device in which all of them are provided. Further, since the winding is performed by using the coil wire 3b having a length used for one winding, the coil length and weight at the time of winding can be reduced and quantified. The drawing resistance from the nozzle 2 of the coil wire 3b can be reduced. A large pull-out resistance causes damage to the armature core of the armature 1, but such a problem can be solved.

  Since there is a vacant space in the coil wire supply section from the coil bobbin 3 to the magazine 6, for example, two sets of coil wire diameter differences can be provided, which can be changed immediately when changing the type of coil wire. Setup loss at the time of change can be eliminated. Further, the number of coil bobbins 3 is small, and the replacement work can be performed easily and quickly.

  In the illustrated example, the same number of magazine pipes 6a as the nozzles 2 are provided. However, since the arbitrary magazine pipes 6a can be aligned with the arbitrary nozzles 2 by rotating the magazine 6, the number of magazine pipes 6a can be set to an arbitrary number. It can also be reduced to a number. In that case, after cutting with the cutting cutter 8, the magazine 6 is rotated to the position of the predetermined nozzle 2, and the coil wire 3 b in the magazine pipe 6 a is sent to the target nozzle 2 with the feed rod 13, and the next coil wire Return to the position to align with the cutting cutter 8 for 3a. Hereinafter, it may be repeated until the total number of nozzles 2 is reached.

  The lengths of the coil strands 3b do not have to be the same, and different lengths can be wound depending on the winding specifications. In this case, the end (rear end) of the coil wire that has been wound first is engaged with the riser of the commutator, and the operation of winding the remaining coil wire that has not been wound is continued. All the coil strands may be wound around the child.

It is a typical principal part perspective view which shows the whole winding apparatus with which this invention was applied. It is a typical partial side view of a winding device. (A) is a figure which shows the state before putting a coil wire in a magazine, (b) is a figure which shows the state which put a coil wire in the magazine, (c) was aligning a nozzle and a magazine pipe. It is a figure which shows a state, (d) is a figure which shows the state which moved the coil strand from the magazine to the nozzle with the sending rod.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Armature 2 Nozzle 3 Coil bobbin, 3a Coil wire, 3b Coil wire 6 Magazine, 6a Magazine pipe 8 Cutting cutter 9 Peeling cutter 12 Feeder 13 Sending rod

Claims (4)

A plurality of nozzles that can be displaced relative to the armature in the axial direction and the circumferential direction are arranged, and a plurality of coil strands are drawn out from the plurality of nozzles, and coil strands are wound between core slots of the armature. A winding device for an armature adapted to rotate,
A plurality of magazine pipes that are provided in the same number as the nozzles adjacent to the armature winding side of the nozzles and stock the coil strands, and the magazines that are fed out from the coil bobbins. a coil wire moving means provided movably while gripping the coil wire to move to put the pipe, and a cutting means for cutting so as to obtain the coil wire encased in said magazine pipe the coil wire, have a coil wire delivery means for delivering said coil wire to the nozzle from the magazine pipe,
The plurality of nozzles are linearly movable with respect to the axis of the armature and arranged in a uniform pitch in the circumferential direction, and are movable in a circular arc so as to be continuous with the movable nozzle. A fixed nozzle that is bent and formed to be parallel to the axis of the armature;
The armature winding apparatus, wherein the plurality of magazine pipes are arranged in parallel with the axis of the armature and in a cylindrical shape as a whole . The magazine pipe and the nozzle can be relatively displaced in the arrangement direction of the plurality of nozzles, and at least the coil wire moving means and the cutting means are provided in a number smaller than the total number of the nozzles. The armature winding device according to claim 1, wherein: 3. The armature winding device according to claim 1, wherein the number of the coil strands put into the magazine pipe at a time is smaller than the total number of the nozzles.   The armature winding device according to any one of claims 1 to 3, wherein a peeling means for removing the coating of the coil wire is provided.