JP2013229974A - Coil winding/setting method and coil winding/setting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent coils from being stacked when the coils are set in a coil holding tool in a spirally overlapped state as a whole.SOLUTION: A lead wire supplied from a lead wire supply device 120 is wound to an outer periphery of a winding holding tool 140 by the prescribed number of times. A plurality of coils are formed along a longitudinal direction of the winding holding tool. A diameter of the winding holding tool is reduced while both sides of the coil wound to the outer periphery of the winding holding tool are pressed by a presser plate. The coil is hung diagonally so that one side of the coil is positioned lower than the other side. One side of the coil which is diagonally hung is matched with a prescribed gap of a guide rod of a coil holding tool 220, and the one side of the coil is dropped in the prescribed gap of the guide rod. The coil holding tool is rotated if needed, the other side of the coil which is diagonally hung is matched with the other prescribed gap of the guide rod of the coil holding tool and the other side of the coil is dropped in the other prescribed gap of the guide rod.

Description

  The present invention relates to a coil winding / setting method and a coil winding / setting device for forming a coil by winding a conducting wire and setting the coil in a spirally overlapping state as a whole on a coil holder.

  As a method for mounting the coil on the stator core, a direct winding method in which the coil is directly wound around the inner teeth of the stator core, and the wound coil is held in a coil insertion jig and inserted into the stator core slot by a coil insertion device. The coil insertion method is adopted.

  However, since the conventional coil insertion method can only form coils that are concentrically wound with respect to each magnetic pole, a motor using such a stator core has torque unevenness due to the phenomenon that the magnetomotive force density in the circumferential direction becomes non-uniform. Occur. This torque unevenness causes motor vibration and noise, and also reduces efficiency.

  In order to solve such a problem, there is known a stator (hereinafter referred to as “spiral winding stator”) in which coils are spirally overlapped when viewed from the end face of the stator core. This stator has excellent characteristics that the coil end is short, the height thereof is relatively uniform and compact, the torque unevenness when the motor is made is small, and the vibration and noise of the motor can be reduced. doing.

  And in order to make such a stator, the following patent document 1 has proposed the method of setting a coil to the coil holder in the state which overlapped spirally as a whole. In this method, a coil is set on a coil holder while sequentially superimposing in a coil setting direction, which is a predetermined one direction, with a starting stator coil to be set first as a reference, and a setting position on one side of the starting stator coil On the other hand, the end side stator coil that is set to the same position or the position beyond the other side is set such that the stator coil is inserted into the start side stator coil.

JP 2007-336720 A

  However, in the method described in Patent Document 1, when the coils are set in the coil holder while sequentially superimposing in the coil setting direction, which is a predetermined direction with respect to the initial stator coil to be set first, Coils gradually pile up toward the tip of the guide rod of the coil holder, so if you try to hook all the coils, you will need a very long guide rod, which makes it difficult to manufacture the guide rod. In addition, there is a problem that the strength is insufficient and the coil insertion operation cannot be performed.

  Accordingly, an object of the present invention is to provide a coil winding / setting method in which when a coil is set in a spirally overlapped state as a whole on a coil holder in order to make a spirally wound stator, the coil does not pile up. And providing a coil winding and setting device.

To achieve the above object, one aspect of the present invention is a coil holder having a plurality of guide rods arranged in an annular shape corresponding to inner teeth of a stator core by winding a conductive wire to form a coil. The coil is sequentially dropped into the predetermined gap of the guide rod, and one side of the coil is below the adjacent coil and enters the predetermined gap, and the other side of the coil is superimposed on the coil adjacent to the opposite side and enters the predetermined gap. In the coil winding and setting method of setting the coil in a state of overlapping in a spiral as a whole,
A winding step of winding a conductive wire supplied from the conductive wire supply device around the outer periphery of the winding holder a predetermined number of times, and forming a plurality of coils along the longitudinal direction of the winding holder;
While holding both sides of the coil wound around the outer periphery of the winding holder with a pressing plate, the winding holder is contracted so that one side of the coil is at a lower position than the other side. A coil tilting process,
One side of the slanted coil is aligned with a predetermined gap of the guide rod of the coil holder, and one side of the coil is dropped into the predetermined gap of the guide rod, and then the coil holder is attached as necessary. A coil dropping step of rotating, aligning the other side of the obliquely coiled coil with another predetermined gap of the guide rod of the coil holder, and dropping the other side of the coil into another predetermined gap of the guide rod; A coil winding and setting method is provided.

  According to the above invention, after winding around the outer periphery of the winding holder to form a plurality of coils, the diameter of the winding holder is reduced so that one side of the coil is positioned lower than the other side. In this state, one side and the other side of the coil are sequentially dropped into a predetermined gap of the guide rod of the coil holder, so that one side of the coil is inserted into a lower position of the guide rod, The other side is inserted into the high position of the guide bar. Therefore, when one side of the coil enters under the other side of the adjacent coil and the other side of the coil overlaps with one side of the coil adjacent to the opposite side, the coil is piled up. Therefore, the length of the guide rod of the coil holder can be kept low, and the coil insertion operation can be easily performed.

  In addition, since one side of the coil is slanted so that one side is at a lower position than the other side, the one side and the other side of the coil can be sequentially dropped into a predetermined gap of the guide rod of the coil holder. After one side of the coil is dropped into a predetermined gap, the coil holder is rotated, and the other side of the coil is dropped in alignment with another predetermined gap. It can be dropped into an arbitrary gap of the holder.

  In the coil winding and setting method of the present invention, when starting to drop a coil from a predetermined position of the guide rod, the coil is placed on the other side of the first coil and several subsequent coils, the last coil and the previous coil. About what interferes when dropping one side of some coils, and what the other side of the previous coil is dropped into an irregular gap, and when it falls into the regular gap, the other side of the previous coil can not be extracted, Drop into an irregular gap that does not interfere with them, and after the last coil is dropped, pull out the other side of the first coil and several subsequent coils dropped into the irregular gap. It is preferable to drop it into

  According to the above aspect, the other side of the first coil and several subsequent coils are dropped into an irregular gap so that the last coil and several preceding coils do not interfere with each other. From the predetermined position of the guide rod gap, the U-phase, V-phase, and W-phase coils can be dropped in sequence at predetermined intervals until reaching the coil. Then, after dropping the last coil, the other side of the first coil and several other coils that were dropped into the non-normal gap are extracted and dropped into the normal gap so that one side of the coil is adjacent to the coil. The coil can be set in a state where the coil enters the predetermined gap and the other side of the coil overlaps with the adjacent coil on the opposite side to the predetermined gap and overlaps spirally as a whole. .

  In this way, the end coil that overlaps the other side of the first coil and several subsequent coils can be dropped as it is without lifting the first coil and several subsequent coils. It can be set, and it becomes easy to automate the setting operation by a machine.

  In the coil winding / setting method of the present invention, as the winding holder, a movable tool composed of a pair of movable plates whose mutual distance can be changed by a parallel link, and the movable tool in the winding process. A winding former that is inserted and holds the movable plate in an expanded state; and an insertion former that is inserted into the movable tool and holds the movable plate in a reduced diameter state during the coil tilting step. The holding plate is disposed on both sides of the winding holder, and the winding winding mold is extracted and the insertion winding mold is inserted during the coil tilting process, It is preferable that the distance between the pair of movable plates of the movable tool is narrowed while pressing both sides of the coil with a plate, and the coil is slanted so that one side of the coil is lower than the other side.

  According to the above aspect, by using a combination of the movable tool, the winding winding mold, and the insertion winding mold, the winding plate is inserted into the movable tool during winding, and the movable plate is expanded in diameter. When the coil is dropped, the movable plate can be maintained in a reduced diameter state by extracting the winding form and inserting the insertion form.

  Further, as the winding holder, a guide groove is formed on the outer surface of the movable plate of the movable tool, and a slide plate having a retractable claw portion for hooking the coil is used. It is preferable that the side of the corresponding coil is dropped into the predetermined gap of the guide bar by lowering the slide plate and pushing down the coil by the claw portion.

  According to the above aspect, since the coil can be pushed down by the claw portion by lowering the slide plate mounted on the movable plate outer surface of the movable tool, the side portion of the coil is stably dropped into the predetermined gap of the guide groove. be able to.

  In the coil winding and setting method of the present invention, at least one set of three winding holders corresponding to the U-phase, V-phase, and W-phase coils is used as the winding holder. , Winding around the outer circumference of each winding holder a predetermined number of times, forming a plurality of coils along the longitudinal direction of the winding holder, then, during the coil dropping process, the U phase, It is preferable to drop the V-phase and W-phase coils in order.

  According to the above aspect, the U-phase, V-phase, and W-phase coils can be dropped into the predetermined gap of the guide rod of the coil holder efficiently in order.

Another aspect of the present invention is that a coil is formed by winding a conducting wire, and a predetermined gap of the guide rod of the coil holder having a plurality of guide rods arranged in an annular shape corresponding to the inner teeth of the stator core. The coil is sequentially dropped, and one side of the coil is under the adjacent coil and enters the predetermined gap, and the other side of the coil is superimposed on the coil adjacent to the opposite side and enters the predetermined gap, and is spirally as a whole. In the coil winding and setting device that sets coils in an overlapping state,
The coil holder, a winding holder for winding a conductor around the outer periphery to form a coil, a conductor supply device for supplying the conductor to the winding holder while moving relative to the winding holder, and a winding A first rotating device that rotates the coil winding holder during wiring, a presser plate that is disposed on both sides of the winding holder and presses both sides of the coil held by the winding holder, and the winding holding Coil matching means for aligning the coil held by the tool with a predetermined gap of the guide rod of the coil holder, and coil dropping means for dropping the coil held by the winding holder into the predetermined gap of the coil holder. Prepared,
The winding holder includes a movable tool composed of a pair of movable plates whose distance can be changed by a parallel link, and a winding that is inserted into the movable tool during winding to hold the movable plate in an expanded state. A wire former, and an insertion former inserted into the movable tool when the coil is dropped to hold the movable plate in a reduced diameter state,
In the state where the winding form is inserted into the movable tool and a coil is formed by winding a conductive wire around the outer periphery of the winding holder, the winding reel is extracted from the movable tool and the insertion tool is inserted. By inserting a winding mold into the movable tool and rotating the parallel link while pressing both sides of the coil with the presser plate to reduce the distance between the pair of movable plates, the one side of the coil is reduced. It is configured to be slanted at a low position relative to the other side,
The coil matching means includes: a winding holder moving means for moving the winding holder to a predetermined position on the coil holder; and a side portion of each of the coils held obliquely by the winding holder. And a second rotating device for rotating the coil holder so as to be aligned with a predetermined gap of the guide rod of the coil holder. It is.

  According to the above invention, with the winding reel inserted into the movable tool, the end of the conductor drawn from the conductor supply device is held by the winding holder, and the winding holder is attached by the first rotating device. By rotating, a coil can be formed. At that time, a plurality of coils can be formed along the longitudinal direction of the winding holder by supplying the conducting wire to the winding holder while moving the conductor supply means relative to the winding holder.

  When the winding operation is completed and the coil is formed, the winding frame is extracted from the movable tool and the insertion winding mold is inserted, and the parallel link is rotated while holding both sides of the coil by the holding plate. By narrowing the distance between the pair of movable plates so as to reduce the diameter, one side of the coil can be placed at a lower position than the other side and can be in an obliquely hung state.

  In this state, the winding holder is moved to a predetermined position on the coil holder by the winding holder moving means, and one side of the coil held by the winding holder is moved to a predetermined gap of the guide rod of the coil holder. To match.

  Then, one side of the coil is dropped into the predetermined gap of the guide rod by the coil dropping means. Further, if necessary, the coil holder can be rotated to align the other side of the coil with another predetermined gap of the guide rod, and the other side of the coil can be dropped into the gap by the coil dropping means.

  When one side of the coil diagonally hung on the winding holder is aligned with the predetermined gap of the guide groove of the coil holder, and the other side of the coil is also aligned with another predetermined gap to be dropped. Can continuously drop the coil on one side and the other side without rotating the coil holder.

  However, when one side of the coil that is slanted on the winding holder is aligned with the predetermined gap of the guide rod of the coil holder and the other side of the coil is not aligned with another predetermined gap to be dropped , After dropping one side of the coil and before dropping the other side of the coil, the coil holder can be rotated to drop the other side of the coil in alignment with another predetermined gap to be dropped, thereby One side and the other side of the coil can be dropped into an arbitrary gap without being restricted by the shape of the winding holder.

  Thus, by dropping the coil sequentially into the predetermined gap of the guide rod of the coil holder while dropping one side and the other side of the coil that is diagonally hung into the predetermined gap of the guide rod of the holder, one side of the coil is The coil can be set in a state where it enters the predetermined gap under the adjacent coil, the other side of the coil overlaps the adjacent coil on the opposite side to the predetermined gap, and overlaps spirally as a whole. it can.

  In the coil winding and setting device of the present invention, the coil dropping means includes a guide groove formed on an outer surface of the movable plate of the movable tool, a slide plate mounted slidably along the guide groove, A claw portion mounted on the slide plate so as to protrude and retract, the slide plate is lowered with the claw portion protruding, and a coil wound around the outer periphery of the winding holder by the claw portion is provided. It is preferable that the side portion of the corresponding coil is dropped into a predetermined gap of the guide rod by being pushed down.

  According to the above aspect, the coil wound around the outer periphery of the winding holder can be pushed down by the claw portion and lowered into the predetermined gap of the guide rod by lowering the slide plate with the claw portion protruding. . Further, when the slide plate is raised, the claw portion is immersed in the slide plate, so that even if another coil is wound around the upper portion, it passes through the inside of the coil and protrudes again at the upper portion of the coil. Therefore, by lowering the slide plate again, the next coil can be dropped into a predetermined gap of the guide rod.

  Further, a plurality of the claw portions are provided along the length direction of the slide plate corresponding to each coil wound around the outer periphery of the winding holder, and when the slide plate is lowered, each coil When the slide plate is raised by being pushed down by the corresponding claw portion, the claw portion is immersed in the slide plate and passes through the inside of the coil located above so as to engage with the upper portion of the coil. It is preferable that it is comprised.

  According to the said aspect, the several coil formed along the length direction of the coil | winding holder can be dropped in order from a lower thing only by moving a slide plate up and down.

  In the coil winding and setting device of the present invention, the winding holder is provided with at least one set of three corresponding to each of the U-phase, V-phase, and W-phase coils. The holding plates are arranged between and on both sides of the holding tool, respectively, so that the winding holding tools and the holding plate on both sides can move their end portions close to and away from the central winding holding tool. The winding holders are rotatably supported by the first winding device at positions where the winding holders on both sides and the presser plate are turned away from the central winding holder. The winding operation is performed by rotation of the coil, and the coil dropping operation is performed at a position rotated so that the winding holders on both sides and the presser plate are close to the central winding holder. It is preferable that it is comprised.

  According to the said aspect, it corresponds to each coil of a U phase, a V phase, and a W phase in the position rotated so that the winding holders on both sides and the presser plate may be separated from the central winding holder. Winding three winding holders at the same time, and in that state, rotate the winding holders on both sides and the press plate so that they are close to each other. The U-phase, V-phase, and W-phase coils can be sequentially dropped into the predetermined gap of the guide rod while the coil holder is in a positional relationship that can be aligned with the gap of the guide rod of the coil holder and the coil holder is rotated and positioned. .

  According to the present invention, after winding around the outer periphery of the winding holder to form a plurality of coils, the diameter of the winding holder is reduced so that one side of the coil is positioned lower than the other side. In this state, one side and the other side of the coil are sequentially dropped into a predetermined gap of the guide rod of the coil holder, so that one side of the coil is inserted into a lower position of the guide rod, The other side is inserted into the high position of the guide bar. Therefore, one side of the coil is under the adjacent coil and enters the predetermined gap, and the other side of the coil is overlapped with the adjacent coil on the opposite side and enters the predetermined gap, and as a whole overlaps spirally. Since it can suppress that a coil piles up when setting a coil, the length of the guide rod of a coil holder can be restrained low, and it becomes possible to perform coil insertion operation easily.

It is a front view which shows one Embodiment of the coil winding and setting apparatus by this invention. It is a right view of the same apparatus. It is a top view of the apparatus. It is a front view which shows the state which assembled | attached the movable tool of the coil | winding holder used for the apparatus, and the winding form for winding. It is a side view of the diameter-expanded state of the movable tool of the coil | winding holder used for the apparatus. It is a top view which shows the state which assembled | attached the movable tool of the coil | winding holder used for the apparatus, and the winding form for winding. It is a front view which shows the winding form for winding of the winding holder used for the apparatus. It is a front view which shows the state which assembled | attached the movable tool and winding form for insertion of the coil | winding holder used for the apparatus. It is a side view of the diameter-reduced state of the movable tool of the coil | winding holder used for the apparatus. It is a top view which shows the state which assembled | attached the movable tool of the coil | winding holder used for the apparatus, and the winding form for insertion. It is a front view which shows the winding form for insertion used for the apparatus. It is an enlarged plan view which shows the state which set each winding holder of U, V, and W used for the apparatus above the guide rod of a coil holder. In the coil winding and setting method according to one embodiment of the present invention using the same device, a state in which the conductor drawn from the conductor supply device is fixed to the winding holder is shown, 01a is a plan view, and 01b is a front view. It is. In the same method, the winding tool is inserted into the movable tool of the winding holder from below, 02a is a plan view, and 02b is a front view. In the same method, the winding holder is rotated to wind the conductive wire around the outer circumference of the winding holder to form a first coil, where 03a is a plan view and 03b is a front view. In this method, a state in which a plurality of coils are formed along the longitudinal direction of the winding holder is shown, in which 04a is a plan view and 04b is a front view. In the same method, the winding reel is extracted from the movable tool of the winding holder, and the insertion reel is inserted. 05a is a plan view and 05b is a front view. In this method, U, V, and W winding holders are shown close to each other through presser plates disposed on both sides thereof, 06a being a plan view, and 06b being a front view. In this method, U, V, and W winding holders are moved above the coil holder, where 07a is a plan view and 07b is a front view. In this method, one side of the first coil is aligned with a predetermined gap of the guide rod of the coil holder, and one side of the coil is dropped, and 08a is a plan view and 08b is a front view. FIG. 5 is a partially enlarged side view showing a state where one side of the first coil is aligned with a predetermined gap of a guide rod of a coil holder and one side of the coil is dropped. In this method, the other side of the first coil is aligned with a predetermined gap of the guide rod of the coil holder, and the other side of the coil is dropped, where 09a is a plan view and 09b is a front view. FIG. 5 is a partially enlarged side view showing a state in which the other side of the first coil is aligned with a predetermined gap of the guide rod of the coil holder and the other side of the coil is dropped. It is explanatory drawing which shows the 1st step in a coil winding and setting method. It is explanatory drawing which shows the 2nd step in the coil setting method. It is explanatory drawing which shows the 3rd step in the coil setting method. It is explanatory drawing which shows the 4th step in the coil setting method. It is explanatory drawing which shows the 5th step in the coil setting method. It is explanatory drawing which shows the 6th step in the coil setting method. It is explanatory drawing which shows the 11th step in the coil setting method. It is explanatory drawing which shows the 12th step in the coil setting method. It is explanatory drawing which shows the 13th step in the coil setting method. It is explanatory drawing which shows the 14th step in the coil setting method. It is explanatory drawing which shows the 15th step in the coil setting method. It is explanatory drawing which shows the 16th step in the coil setting method. It is sectional drawing which shows the state which has arrange | positioned the coil insertion jig which has the coil set by the same coil setting method in the coil insertion apparatus, and mounted | wore the stator core. FIG. 37 is a cross-sectional view showing a state where the coil insertion jig is raised from the state shown in FIG. 36 and the tip of the blade protrudes from the upper end surface of the stator core. It is sectional drawing which shows the state which raised the stripper from the state shown in FIG. 37, and inserted the upper half part of the coil in the slot of the stator core. FIG. 39 is a cross-sectional view showing a state where the stripper is further raised from the state shown in FIG. 38 and the coil is completely inserted into the slot of the stator core. It is a top view of the stator core which attached the coil by the said method.

  Hereinafter, an embodiment of a coil winding / setting device and a coil winding / setting method according to the present invention will be described with reference to the drawings. 1 to 23 show an embodiment of a coil winding and setting apparatus according to the present invention.

  As shown in FIGS. 1-3, this coil winding and setting apparatus 100 has a base 110, and a support wall 111 is erected on one side thereof. Then, three first guide rails 112 extending vertically are attached to the support wall 111 in parallel at a predetermined interval. The three first guide rails 112 are attached with U-phase, V-phase, and W-phase conductor supply devices 120U, 120V, and 120W, respectively, via an elevating base 121. Each conducting wire supply device 120U, 120V, 120W has a tension device 122 and a nozzle 123, and the conducting wire is drawn out from the nozzle 123. In addition, each of the conducting wire supply devices 120U, 120V, and 120W can be moved up and down along the first guide rail 112 by a driving device (not shown).

  A second guide rail 131 that extends horizontally from the support wall 111 is disposed on the base 110 via a support 130. On the second guide rail 131, a movable frame 132 is installed so as to be movable along the second guide rail 131 by a driving mechanism (not shown). The movable frame 132 includes a slide plate 133 movable along the second guide rail 131 and an upper plate 134 supported in parallel above the slide plate 133.

  Further, an elevating plate 136 is supported on the upper plate 134 via a guide bar 135 so as to be able to move up and down horizontally. A rod 139 of an air cylinder 138 (see FIG. 2) attached to the upper plate 134 is connected to the lifting plate 136, and the lifting plate 136 is moved up and down by the operation of the air cylinder 138. .

  In addition, three third guide rails 137 extending vertically are attached to the support wall 111 in parallel corresponding to the U-phase, V-phase, and W-phase conductor supply devices 120U, 120V, and 120W. . A first motor 192 is mounted on each third guide rail 137 via a lifting base 190 so as to be lifted and lowered.

  The movable frame 132 and the first motor 192 include U-phase, V-phase, and W-phase winding holders 140U corresponding to the U-phase, V-phase, and W-phase conductor supply devices 120U, 120V, and 120W. 140V, 140W are attached. Each winding holder 140U, 140V, 140W includes a movable tool 150 supported by the upper plate 134, a winding form 170 supported by the rotating shaft of the first motor 192, and an insertion supported by the lifting plate 136. The winding mold 180 is used.

  As shown in FIGS. 4 to 6, the movable tool 150 includes movable plates 151 and 152 that are supported in parallel on a support shaft 153 via two parallel upper and lower links 154. The movable plate 151 and the movable plate 152 can be moved closer to and away from each other by rotating the link 154, so that the diameter-expanded state and the diameter-reduced state can be taken. The other movable plate 152 is formed slightly longer than the one movable plate 151. The upper end of the support shaft 153 is rotatably supported by the upper plate 134.

  Guide grooves 155 are formed on the outer peripheries of both side edges of the movable plates 151 and 152, and a slide plate 160 is slidably mounted in the guide grooves 155. The slide plate 160 is provided with a plurality of claw portions 161 at predetermined intervals along the vertical direction, and each claw portion 161 protrudes obliquely so that the protrusion amount increases toward the lower side, and is not illustrated. Although it always protrudes outward by the means, it can be sunk inward by being pressed from the outside. Each slide plate 160 is normally urged upward by an urging means (not shown), and its upper end is held at a position regulated by a stopper (not shown).

  As shown in FIG. 7, the winding former 170 includes a support plate 171 fixed to the rotating shaft of the first motor 192, and a front reel 172 and a rear reel 173 that are erected from both ends thereof. Each of the front winding frame 172 and the rear winding frame 173 is supported by the support plate 171 so as to be tiltable by a predetermined angle by the support shaft 176, and is normally tilted inward by the spring 175. Further, the winding former 170 can be moved up and down together with the first motor 192 by moving the lifting base 190 up and down along the third guide rail 137.

  4 and 6, the winding mold 170 is inserted between the movable plate 151 and the movable plate 152 of the movable tool 150 by inserting a front winding frame 172 and a rear winding frame 173 from below. The movable plate 150 is assembled to the movable tool 150 to hold the movable plate 151 and the movable plate 152 in an expanded state. At this time, the front winding frame 172 and the rear winding frame 173 urged so as to tilt inward by the spring 175 are slightly expanded and assembled in close contact with the movable plate 151 and the movable plate 152. Further, by operating the first motor 192 with the winding former 170 inserted into the movable tool 150, the winding former 170 and the movable tool 150 rotate together in an assembled state. It is supposed to be.

  In addition, a plurality of protrusions 174 are formed on the rear winding frame 173 so as to appear and retract at predetermined intervals in the vertical direction. When one coil winding is finished and this projection 174 moves downward and winds the next coil, the conductor 174 is hooked on the projection 174 and rotated in the opposite direction. It is for making it possible. When the coil winding is completed and the winding mold 170 is extracted from the movable tool 150, the protrusion 174 can be immersed in the rear winding frame 173.

  As shown in FIGS. 8 to 11, the insertion mold 180 includes a support plate 181 that is detachably supported by the elevating plate 136, and a front frame body that hangs downward substantially in parallel from both ends of the support plate 181. 182 and a rear frame 183. When the lifting plate 136 is moved up and down by the operation of the air cylinder 138, the insertion mold 180 is moved up and down together therewith. When the winding mold 170 is extracted downward from the movable tool 150, the winding tool 170 is inserted into the movable tool 150 from above, and the front frame body 182 and the rear frame body 183 are disposed between the movable plate 151 and the movable plate 152. It has become so. In this state, the link 154 is rotated by the holding plate 210 so that the distance between the movable plate 151 and the movable plate 152 is reduced and brought into contact with the front frame body 182 and the rear frame body 183, so that the movable tool 150 is in a reduced diameter state. Is supposed to be retained. At this time, the lower ends of the movable plate 151 and the movable plate 152 are positioned on substantially the same horizontal plane.

  A pusher device 200 is installed on the lifting plate 136. The pusher device 200 has a support plate 202 installed horizontally through a plurality of support columns 201 erected on an elevating plate 136. On this support plate 202, three air cylinders 203 are installed corresponding to the U-phase, V-phase, and W-phase winding holders 140U, 140V, and 140W, and at the lower ends of their operating rods, A long pusher 204 and a short pusher 205 are attached to each other via a flange-shaped holder so as to hang substantially in parallel, two each. The pusher 204 is attached to the movable plate 151 on one side of the movable tool 150 when the U-phase, V-phase, and W-phase winding holders 140U, 140V, and 140W move so as to approach each other in a manner described later. The pusher 205 is provided at a position where the slide plate 160 mounted on the movable plate 152 on the other side of the movable tool 150 can be pushed from above. Yes. That is, in the above state, when the air cylinder 203 is operated and the pusher 204 and the pusher 205 are lowered, the corresponding slide plate 160 is pushed down, and the corresponding coil holder 161 is provided by the claw portion 161 provided on the slide plate 160. A coil wound around 140U, 140V, and 140W is pushed down. In this embodiment, the pusher device 200 and the slide plate 160 constitute the coil dropping means in the present invention.

  A coil holder 220 is installed on the upper surface of the base 110 opposite to the support wall 111. In this embodiment, the coil holder 220 serves as a coil insertion jig, is held in a cylindrical holder 221, and has a circular shape corresponding to an inner tooth of a stator core to be applied (not shown). A plurality of guide rods (blades) 222 arranged and a wedge guide 223 arranged on the outside thereof are provided. The coil holder 220 is rotatably installed on the base 110 and is rotated by a second motor 224 installed on the base 110.

  As described above, the movable frame 132 is movable along the second guide rail 131. By moving the movable frame 132 in the direction of the coil holder 220, each winding holder 140U, 140V, 140W is moved. It is arranged on the coil holder 220.

  As shown in FIGS. 3 and 12, the U-phase, V-phase, and W-phase winding holders 140U, 140V, and 140W are arranged in parallel with each other at a predetermined interval, and one end is brought close to each other. It is arranged to be able to move to the state. That is, the winding holder 140V is supported by the center plate 216 fixedly disposed on the lower surface of the upper plate 134, and the winding holders 140U and 140W on both sides of the winding holder 140V support the support shaft 212 with respect to the center plate 216. And is supported by a movable plate 211 mounted so as to be rotatable. Also, on both sides of each of the winding holders 140U, 140V, 140W, presser plates 210 whose base end portions are rotatably attached to the central plate 216 and the movable plate 211 via the support shaft 212 and the support shaft 213, respectively. Is arranged. Each presser plate 210 is constantly urged so as to open outwardly away from each other by urging means (not shown), and the bases of the presser plates 210 arranged on the most sides are stoppers attached to the movable plate 211. The opening angle to the outside is regulated by 217. Further, the rod 215 of the air cylinder 214 attached to the upper plate 134 is connected to the outer surface of the presser plate 210 arranged on the most both sides.

  When the winding tool 170 is inserted into the movable tool 150 and winding is performed, the winding holders 140U, 140V, and 140W are arranged in parallel with each other at a predetermined interval, and the presser plate 210 is also in parallel with each other. Supported. Therefore, even if each winding holder 140U, 140V, 140W rotates by the 1st motor 192, it does not interfere with each other.

  On the other hand, the winding is finished, the winding mold 170 is extracted from the movable tool 150, the insertion mold 180 is inserted into the movable tool 150, and the movable frame 132 moves along the second guide rail 131. When the winding holders 140U, 140V, and 140W are arranged above the coil holder 220, the rod 215 of the air cylinder 214 is pushed out, and the movable plate 211 moves the support shaft 212 as shown in FIG. The holding plate 210 is also rotated about the support shafts 212 and 213, and the front end portions of the respective winding holders 140U, 140V, and 140W are brought close to each other.

  At this time, the link 154 of the movable tool 150 is rotated at the same time, the distance between the movable plates 151 and 152 is narrowed to reduce the diameter, and the winding holders 140U, 140V, and 140W are in close contact with the insertion mold 180. It becomes a reduced diameter shape. The coils wound around the outer circumferences of the respective winding holders 140U, 140V, 140W are moved on both sides along the moving direction of the movable plates 151, 152 arranged inside them, and one side of the coil (the movable plate 151). The side of the coil is located on the lower side, and the other side of the coil (side on the movable plate 152) is located on the upper side. Further, when each winding holder 140U, 140V, 140W is reduced in diameter, the coil is loosened, but since both sides of the coil are pressed by the holding plate 210, the corresponding winding holder 140U, 140V, In close contact with 140W, it can be slanted.

  Next, an embodiment of the coil winding / setting method of the present invention using the coil winding / setting apparatus 100 will be described.

  As shown in FIG. 13, first, the conductor W is held and pulled out from each of the conductor supply devices 120U, 120V, and 120W by a gripper (not shown), and fixed to the movable tool 150 of the corresponding winding holder 140U, 140V, and 140W. . At this time, the winding former 170 and the insertion former 180 are extracted from the movable tool 150. Further, the movable frame 132 is in a position close to the conductor supply devices 120U, 120V, and 120W, and the movable tool 150 of each winding holder 140U, 140V, and 140W is positioned above the corresponding winding form 170. ing.

  As shown in FIG. 14, along the third guide rail 137, the first motor 192 and the winding form 170 rise, and the corresponding windings 140U, 140V, and 140W are moved to the corresponding movable tool 150. A winding mold 170 is inserted. As a result, as shown in FIGS. 4 and 6, the movable plates 151 and 152 of the movable tool 150 are held in an expanded state by the winding former 170.

  As shown in FIG. 15, the winding mold 170 is rotated by the first motor 192, and thereby the movable tool 150 integrated with the winding mold 170 is also rotated. Then, each of the conducting wire supply devices 120U, 120V, 120W is gradually lowered, and the winding position is moved downward while winding the conducting wire W around the outer periphery of the movable tool 150 and the winding die 170 for winding. A coil C1 is formed.

  As shown in FIG. 16, when the winding of one coil is completed, the conductor W is hooked on the protrusion 174 (see FIGS. 4 and 7) of the winding former 170, and each of the conductor supply devices 120U, 120V, 120W. Is lowered, the first motor 192 is rotated in the opposite direction to the previous time, and the next coil is wound. In this way, winding is performed by alternately changing the winding direction, and a plurality of coils C1, C2, C3, and C4 are formed along the axial direction of the winding holders 140U, 140V, and 140W.

  As shown in FIG. 17, when the winding operation for the winding holders 140U, 140V, and 140W is completed, the first motor 192 and the winding form 170 are moved down along the third guide rail 137, and the movable tool is moved. The winding mold 170 is extracted from 150, and the elevating plate 136 is lowered by the air cylinder 138 (see FIG. 2), and the insertion mold 180 corresponding to the movable tool 150 is inserted from above.

  As shown in FIG. 18, the insertion mold 180 is separated from the lifting plate 136, the lifting plate 136 is lifted at one end, and in this state, the rod 215 of the air cylinder 214 is pushed out. As shown in FIG. 211 rotates about the support shaft 212, and the presser plate 210 also rotates about the support shafts 212 and 213, so that the front end portions of the winding holders 140U, 140V, and 140W are close to each other.

  At this time, as shown in FIGS. 8, 9, and 10, the link 154 of the movable tool 150 is rotated, the distance between the movable plates 151 and 152 is reduced, and the diameter is reduced. Each winding holder 140U, 140V, 140W becomes a reduced diameter shape. The coils wound around the outer circumferences of the respective winding holders 140U, 140V, and 140W are moved on both sides along the moving direction of the movable plate 151 and the movable plate 152 arranged on the inner side thereof, and one side of the coil (movable) The side portion that abuts the plate 151 is located below, and the other side of the coil (the side portion that abuts the movable plate 152) is located above and is in an obliquely hung state. Further, when each winding holder 140U, 140V, 140W is reduced in diameter, the coil is loosened, but since both sides of the coil are pressed by the holding plate 210, the corresponding winding holder 140U, 140V, In close contact with 140W, it can be slanted. Thereafter, the elevating plate 136 descends again and returns to the position immediately above the winding holders 140U, 140V, 140W.

  As shown in FIG. 19, the movable frame 132 moves along the second guide rail 131, and the respective winding holders 140 </ b> U, 140 </ b> V, 140 </ b> W are disposed above the coil holder 220. At this time, as shown in FIG. 12, both sides of each winding holder 140U, 140V, 140W correspond to a predetermined gap of the guide rod (blade) 222 of the coil holder (coil insertion jig) 220. ing. Further, the gap where both sides of each winding holder 140U, 140V, and 140W are aligned can be freely changed by rotating the coil holder 220 by the second motor 224.

  As shown in FIGS. 20 and 21, pushers 204 and 205 are lowered halfway by an air cylinder 203 corresponding to one winding holder 140U, and the tip of the pusher 204 and 205 slides the movable tool 150 of the winding holder 140U. 160 (see FIGS. 8 and 10) is pushed down, and one side of the coil C4 wound at the lowermost position is inserted into a predetermined gap of the guide rod 222 of the coil holder 220.

  As shown in FIG. 23, the coil holder 220 is rotated by the second motor 224, and another predetermined gap of the guide rod (blade) 222 of the coil holder 220 is set to the coil C4 held by the winding holder 140U. Align to the other side. In this state, the pusher 204 and the pusher 205 are further lowered by the air cylinder 203, and the other side of the coil C4 is inserted into another predetermined gap of the guide rod 222 of the coil holder 220.

  In this way, the dropping of one side of the coil and the dropping of the other side of the coil can be sequentially performed. Therefore, the coil holding member 220 is rotated between them so that the other side of the coil is aligned. The gap between the guide bars 222 can be changed, and both sides of the coil can be dropped into an arbitrary gap between the guide bars 222. Further, since the coil is obliquely hung on the winding holder 140U, one side thereof is inserted into a low position of the guide rod 222 and the other side is inserted into a high position.

  Thus, when the dropping of the lowermost coil C4 held by the winding holder 140U is finished, the pusher 204, 205 is raised by the air cylinder 203, so that the slide plate 160 is raised by the urging means (not shown). Return to position. At this time, the claw portion 161 of the slide plate 160 is pressed by the coils C2, C3, and C4 disposed above the slide plate 160 and sunk into the slide plate 160, and passes through the inside of the coils C2, C3, and C4. The coils C2, C3, and C4 are pulled out and engaged with the corresponding coils C2, C3, and C4. Therefore, the next coil C2 can be dropped by lowering the slide plate 160 again, and the dropping operation can be sequentially performed from the lower coil by repeating such an operation.

  When the dropping operation of the coil C4 held by the winding holder 140U is completed, the dropping operation of the coil C4 held by the winding holder 140V is performed, and subsequently held by the winding holder 140W. The operation of dropping the coil C4 is performed. Then, the coil C3 held by the winding holder 140U is dropped, and the coils U, V, and W held by the winding holders 140U, 140V, and 140W are similarly viewed from below. The coils are dropped sequentially so that one side of each coil enters below and the other side overlaps with one side of the adjacent coil.

  24 to 35 show an embodiment of a procedure for setting the coil holder 220 while dropping the wound coils one by one by repeating the above operation. (A) of each figure is a top view, (b) is explanatory drawing which expand | deploys and shows the guide rod (blade) 222. FIG.

  In this embodiment, as the coil holder 220 (coil insertion jig), a total of 48 guide rods (blades) 222 arranged in an annular shape are used. However, in (b) of FIGS. 24 to 35, three guide rods (blades) at both ends are shown in an overlapping manner in order to clearly indicate the holding position of the coil.

  Further, a total of 48 gaps are provided in the total of 48 guide rods (blades) 222, but a gap (see FIG. 9) into which one side (side part held at a low position) of the coil U1 is dropped is S1. Hereinafter, S2... S48 are displayed counterclockwise.

  In the following description, the first coil, the second coil, the third coil,... In this embodiment, the two coil winding / set devices 100 described above are used, and the dropping operation is started simultaneously from two opposite locations in the circumferential direction in the counterclockwise direction. Therefore, there are two coils in each order, and the last coil is the 12th.

  In the figure, U1 to U8 are U-phase coils, V1 to V8 are V-phase coils, W1 to W8 are W-phase coils, and the U-phase, V-phase, and W-phase coils are respectively dropped in order. It is supposed to be. That is, as shown in FIG. 35, a total of 24 coils are held for each of the eight phases. In addition, each coil is inserted into a gap between the guide rod 222 in which one side is inserted, and the other side is inserted into a gap that is five distances away from each other (five guide rods 222 are inserted between both sides of the coil. )

  As shown in FIG. 24, in this embodiment, the coil dropping operation is started simultaneously from two locations facing the circumferential direction of the coil holder 220, and the dropping operation is performed counterclockwise starting from each starting location. proceed. The first coils U1 and U5 have their one side (side part held at a low position) dropped into the regular gaps S1 and S25, and the other side (side part held at a high position) It is dropped into the non-regular gaps S48 and S24 adjacent to the gaps S1 and S25. In the following description, “one side” means a side portion held at a low position, in other words, a side portion that enters under an adjacent coil, and “other side” means a side portion held at a high position. In other words, it means the side portion that overlaps the adjacent coil on the opposite side.

  In this case, the coils held by the winding holders 140U, 140V, and 140W are configured such that both sides thereof are aligned with the regular gaps of the guide rods 222 of the coil holder 220. Therefore, the coils U1, U5 After dropping one side into the regular gaps S1 and S25, the coil holder 220 is rotated so that the other sides of the coils U1 and U5 are aligned with the non-regular gaps S48 and S24. This is done by dropping the other side in the state. In the following coils, the same operation can be performed when the other side is dropped into a non-regular gap.

  FIG. 25 shows a state in which the second coils V1 and V5 are dropped, and the second coils V1 and V5 have one side dropped into the regular gaps S3 and S27, and the other side has the gap S3, It is dropped into the non-regular gaps S1 and S25, which are two distances from S27.

  FIG. 26 shows a state in which the third coils W1 and W5 are dropped, and the third coils W1 and W5 have one side dropped into the regular gaps S5 and S29, and the other side has the gap S5, It is dropped into the non-regular gaps S2 and S26, which are three distances from S29.

  FIG. 27 shows a state in which the fourth coils U2, U6 are dropped, and the fourth coil U2, U6 has one side dropped into the regular gaps S7, S31, and the other side has the gap S7, It is dropped into the non-regular gaps S3 and S27, which are four distances from S31.

  FIG. 28 shows a state in which the fifth coils V2 and V6 are dropped, and the fifth coil V2 and V6 has one side dropped into the regular gaps S9 and S33, and the other side also has the gap S9, It is dropped into regular gaps S4 and S28, which are five distances from S33.

  In this way, since both sides of the coil can be dropped into the regular gap from the fifth coil, both sides of the coil held by the second winding frame 35 are aligned with the regular gap of the guide rod 222. The entire coil can be dropped at once.

  FIG. 29 shows a state in which the sixth coils W2 and W6 are dropped. The sixth coils W2 and W6 have one side dropped into the regular gaps S11 and S35, and the other side also has the gap S11, It is dropped into regular gaps S6 and S30, which are five distances from S35.

  Hereinafter, such a process is repeated, and one side of the coil is dropped into the regular gap without overlapping the other coil, and the other side of the coil is dropped into the regular gap so as to overlap the other coil. As a result, the coils are arranged in a spiral while being obliquely overlapped.

  At this time, the coils held by the winding holders 140U, 140V, and 140W are slanted with one side held at a low position and the other side held at a high position. Even if it is dropped while piled up, the other side of the adjacent coil inserted in the high position is put on one side of the coil inserted in the low position, so that the coil does not pile up and the guide rod Even if 222 is relatively short, all the coils can be inserted.

  FIG. 30 shows a state where the eleventh coils V4 and V8 are dropped by repeating the above operation. The eleventh coils V4 and V8 have one side dropped into the regular gaps S21 and S45, and the other side falls into the regular gaps S16 and S40, which are five distances away from the gaps S21 and S45. It is.

  The regular gaps S21 and S45 into which one side of the eleventh coils V4 and V8 is dropped are more counterclockwise than the regular gaps S20 and S44 into which the other sides of the first coils U5 and U1 are to be dropped. If it is in the advanced position and the other side of the first coils U5, U1 is dropped into the regular gap, it will overlap the other side of the first coils U5, U1. Since the other sides of the second coils U5 and U1 are dropped into the non-regular gaps S24 and S48, they can be dropped without overlapping with the first coils U5 and U1.

  FIG. 31 shows a state where the twelfth coils W4 and W8, that is, the last coils adjacent to the first coils U1 and U5 are dropped. The twelfth coils W4 and W8 have one side dropped into the regular gaps S23 and S47, and the other side falls into the regular gaps S18 and S42, which are five away from the gaps S23 and S47. It is.

  The regular gaps S23 and S47 into which one side of the twelfth coils V4 and V8 is dropped are the regular gaps S20 and S44 into which the other side of the first coils U5 and U1 should be dropped, and the second coil V5. , The other side of V1 is in a position advanced in the counterclockwise direction with respect to the regular gaps S22 and S46 to be dropped, and the other side of each coil U5, U1, V5, V1 is dropped into the regular position. If there is, the other side of the coils U5, U1, V5, V1 is dropped into the non-regular gaps S24, S48, S25, S1, so that the first The coils U5, U1, and the second coils V5, V1 can be dropped as they are without overlapping.

  In this way, by inserting the other side of the first coil and several subsequent coils into the non-regular gap, it is possible to drop it into the regular gap as it is until the last coil. In addition, since it is not necessary to extract the other side of the coil and the other side of the coil and insert it in a lifted state, the workability is improved and the work can be easily automated.

  FIG. 32 shows a state in which the other sides of the first coils U1 and U5 are extracted from the irregular gaps S48 and S24 and inserted into the regular gaps S44 and S20. As a result, the other sides of the first coils U1, U5 are held over the eleventh coils V4, V8 and the twelfth (last) coils W4, W8. At this time, the other side of the second coil V1, V5, the third coil W1, W5, the fourth coil U2, U6 is inserted into the non-regular gap as described above, so that the first coil U1. , U5 can be extracted from the non-regular gaps S48, S24.

  FIG. 33 shows a state in which the other sides of the second coils V1, V5 are extracted from the non-regular gaps S1, S25 and inserted into the regular gaps S46, S22. As a result, the other sides of the second coils V1, V5 are held over the twelfth (last) coils W4, W8 and the first coils U1, U5. At this time, the other sides of the third coils W1, W5 and the fourth coils U2, U6 are inserted into the non-regular gap as described above, so that the other sides of the second coils V1, V5 are made regular. Can be extracted from the gaps S1 and S25.

  FIG. 34 shows a state in which the other sides of the third coils W1 and W5 are extracted from the non-regular gaps S2 and S26 and inserted into the regular gaps S48 and S24. As a result, the other sides of the third coils W1, W5 are held over the first coils U1, U5 and the second coils V1, V5. At this time, the other side of the fourth coils U2, U6 is inserted into the non-regular gap as described above, whereby the other side of the third coils W1, W5 is extracted from the non-regular gaps S2, S26. Can do.

  FIG. 35 shows a state where the other sides of the fourth coils U2 and U6 are extracted from the non-regular gaps S3 and S27 and inserted into the regular gaps S2 and S26. As a result, the other sides of the fourth coils U2, U6 are held over the second coils V1, V5 and the third coils W1, W5.

  In this way, all the coils can be set in a state of being inserted into a predetermined gap of the guide rod (blade) 222 of the coil holder 220 while being spirally overlapped. That is, each coil is inserted into a predetermined gap with one side under the other side of the adjacent coil, and the other side is overlapped with one side of the coil adjacent to the opposite side and separated from the gap by a predetermined number. It is set in a state where it is inserted into a gap (in this embodiment, five gaps away from the gap).

  The number of coils to be dropped into the non-regular gap is the number of stator core slots to be applied, the number of coils, the number of guide rods (blades in this embodiment) inserted between the gaps where both sides of the coil are inserted, etc. It depends on.

  Further, the coil dropping direction is not limited to the counterclockwise direction, and may be advanced in the clockwise direction. Furthermore, the dropping of the coil may be performed so as to start from one place and make one round, or may start from three places and end at a position advanced by 120 degrees.

  Further, as described above, the other side of the coil that has been dropped into the non-regular gap may be extracted from the non-normal gap and inserted into the regular gap one by one from the first coil. These coils can be simultaneously extracted from the non-normal gap and simultaneously inserted into the normal gap.

  Next, with reference to FIGS. 36 to 40, an embodiment of a method for inserting a coil set as described above into a stator core by a coil insertion device will be described. 36 to 39, the coil holder 220 will be described as an example using a coil insertion jig 60. The coil insertion jig 60 includes a blade 61 (corresponding to the guide bar 222 in the present invention) and a wedge guide 62. In addition, when using what has only a guide rod like a transfer jig as the coil holder 220, after changing to a coil insertion jig, it can set to a coil insertion apparatus and can carry out.

  As a coil insertion apparatus, it can carry out using a normal coil insertion apparatus, and the example is shown by FIGS. The coil insertion device 70 has a coil insertion jig 72 installed on a table 71. The coil insertion jig 72 has a substantially cylindrical main body case 73 having a flange 74 formed on the outer periphery, a plurality of wedge guides 62 arranged in the main body case 73, and an inner side thereof. And a blade 61. The coil insertion jig 72 is installed with the flange portion 74 of the main body case 73 supported by the table 71.

  The blade 61 and the wedge guide 62 are arranged in an annular shape corresponding to internal teeth (not shown) of the stator core 65. The wedge guide 62 has its base portion inserted into the inner periphery of the main body case 73 and is fixed by bolts. The bases of the blades 61 are fixed to the cylindrical blade holder 75 with bolts, and are disposed inside the blades 61 corresponding to the wedge guides 62. An annular substrate 76 is attached to the lower surface of the main body case 73 to support the blade 61 and the blade holder 75.

  A stripper 77 is disposed further inside the blade 61. The stripper 77 has a plurality of push teeth inserted into the gap of the blade 61 on the outer periphery thereof, and serves to insert the coil C hooked on the blade 61 into the slot of the stator core 65. A guide rod 78 for avoiding interference between coil ends is erected at the center of the upper surface of the stripper 77, and a cylindrical adapter 79 is attached to the lower surface of the stripper 77.

  A cylindrical first drive shaft 80 and a second drive shaft 81 inserted into the first drive shaft 80 are inserted into the central opening of the substrate 76. The upper end of the first drive shaft 80 can be connected to the blade holder 75, and the upper end of the second drive shaft 81 can be connected to the cylindrical adapter 79 of the stripper 77. That is, when the first drive shaft 80 is raised, the blade 61 is raised via the blade holder 75, and when the second drive shaft 81 is raised, the stripper 77 is raised via the cylindrical adapter 79.

  Next, a procedure for inserting the coil C set in a predetermined gap of the blade 61 by the above method into the stator core 65 using the coil insertion device 70 will be described.

  First, as shown in FIG. 36, the upper end portion of the blade 61 is inserted into the stator core 65, and the stator core 65 is disposed at a position where the tip of the wedge guide 62 contacts the lower end surface of the stator core 65.

  Next, as shown in FIG. 37, the first drive shaft 80 and the second drive shaft 81 are pushed up to raise the blade 61 and the stripper 77, so that the tip of the blade 61 protrudes slightly from the upper end surface of the stator core 65. .

  In this state, as shown in FIG. 38, only the second drive shaft 81 is further pushed up to raise the stripper 77, and the coil C set by being hooked on the blade 61 by the pushing teeth (not shown) of the stripper 77 is set to the stator core. Insert into 65 slots. The coil C is guided by the blade 61 and inserted into a slot corresponding to the gap of the blade 61 in which both sides thereof are inserted.

  As shown in FIG. 39, when the stripper 77 is pushed up until it protrudes from the upper end surface of the stator core 65, the upper end of the coil C protrudes from the upper end surface of the stator core 65 and goes over the upper end of the blade 61 to the outside. The coil C is completely inserted into the slot of the stator core 65.

  Finally, the first drive shaft 80 and the second drive shaft 81 are lowered, the stripper 77 and the blade 61 are returned to their original positions, and the stator core 65 is removed from the tip of the blade 61, thereby completing the coil insertion operation.

  As shown in FIG. 40, the stator core 65 with a coil manufactured in this way has a shape in which ends (coil ends) of the coils C protruding from the end face of the stator core 65 are spirally overlapped, and the height thereof is Relatively uniform and compact shape. Therefore, it has excellent characteristics that the torque unevenness when it is used as a motor is small, the vibration and noise of the motor are reduced, and the efficiency of the motor can be improved.

35 Winding frame 60 Coil insertion jig 61 Blade 62 Wedge guide 65 Stator core 70 Coil insertion device 71 Table 72 Coil insertion jig 73 Main body case 74 Flange part 75 Blade holder 76 Substrate 77 Stripper 78 Guide rod 79 Cylindrical adapter 80 Drive shaft 81 Drive shaft 100 Coil winding / set device 110 Base 111 Support wall 112 Guide rail 120 Conductor supply device 120U, 120V, 120W Conductor supply device 121 Lifting base 122 Tension device 123 Nozzle 130 Prop 131 Guide rail 132 Movable frame 133 Slide plate 134 Upper plate 135 Guide rod 136 Lift plate 137 Guide rail 138 Air cylinder 139 Rod 140 Winding holders 140U, 140V, 140W Winding holder 150 Movable tools 151, 152 Movable plate 153 Support shaft 154 Link 155 Guide groove 160 Slide plate 161 Claw portion 170 Winding mold 171 Support plate 172 Front winding frame 173 Rear winding frame 174 Projection 175 Spring 176 Support shaft 180 Inserting winding 181 Support plate 182 Front Frame 183 Rear frame 190 Elevating base 192 Motor 200 Pusher device 201 Post 202 Support plate 203 Air cylinder 204, 205 Pusher 210 Press plate 211 Movable plate 212 Support shaft 214 Air cylinder 215 Rod 216 Center plate 220 Coil holder 221 Holder 222 Guide rod 223 Wedge guide 224 Motor C Coils C1, C2, C3, C4 Coils S1 to S48 Gap U1 to U8, V1 to V8, W1 to W8 Coil W Conductor

Claims (9)

A coil is formed by winding a conducting wire, and the coil is sequentially dropped into a predetermined gap of the guide rod of the coil holder having a plurality of guide rods arranged in an annular shape corresponding to the inner teeth of the stator core. Set the coil so that one side is under the adjacent coil and enters the predetermined gap, the other side of the coil overlaps the adjacent coil on the opposite side and enters the predetermined gap, and the entire coil overlaps spirally In coil winding and setting method,
A winding step of winding a conductive wire supplied from the conductive wire supply device around the outer periphery of the winding holder a predetermined number of times, and forming a plurality of coils along the longitudinal direction of the winding holder;
While holding both sides of the coil wound around the outer periphery of the winding holder with a pressing plate, the winding holder is contracted so that one side of the coil is at a lower position than the other side. A coil tilting process,
One side of the slanted coil is aligned with a predetermined gap of the guide rod of the coil holder, and one side of the coil is dropped into the predetermined gap of the guide rod, and then the coil holder is attached as necessary. A coil dropping step of rotating, aligning the other side of the obliquely coiled coil with another predetermined gap of the guide rod of the coil holder, and dropping the other side of the coil into another predetermined gap of the guide rod; Coil winding and setting method characterized by including.   When starting to drop the coil from a predetermined position of the guide rod, interference occurs when dropping the last coil and one side of several coils before and after the first coil and several other coils. If the other side of the previous coil is dropped into a non-regular gap and the other side of the previous coil cannot be extracted when dropped into the regular gap, it is dropped into a non-normal gap that does not interfere with them, The coil winding set according to claim 1, wherein after the last coil has been dropped, the other side of the first coil and several subsequent coils that have been dropped into an irregular gap are extracted and dropped into the regular gap. Method.   As the winding holder, a movable tool composed of a pair of movable plates whose distance can be changed by a parallel link, and inserted into the movable tool during the winding process, the movable plate is held in an expanded state. Using a winding form for winding, and an insertion form that is inserted into the movable tool and holds the movable plate in a reduced diameter state during the coil tilting step. The holding tool is disposed on both sides, and the winding tool is pulled out and the insertion tool is inserted in the coil tilting step, and the movable tool is pressed while pressing the both sides of the coil with the pressing plate. The coil setting method according to claim 1 or 2, wherein the distance between the pair of movable plates is narrowed so that one side of the coil is slanted so as to be lower than the other side.   As the winding holder, a guide groove is formed on the outer surface of the movable plate of the movable tool, and a slide plate having a retractable claw portion for hooking a coil is used. 4. The coil winding and setting method according to claim 3, wherein a side of the corresponding coil is dropped into a predetermined gap of the guide rod by lowering the slide plate and pushing down the coil by the claw portion.   As the winding holder, at least one set of three winding holders corresponding to the U-phase, V-phase, and W-phase coils is used, and a predetermined number of times is provided on the outer periphery of each winding holder in the winding step. Winding while changing the winding direction one by one, forming a plurality of coils along the longitudinal direction of the winding holder, and then dropping the U-phase, V-phase, and W-phase coils in order during the coil dropping step The coil winding / setting method according to any one of claims 1 to 4. A coil is formed by winding a conducting wire, and the coil is sequentially dropped into a predetermined gap of the guide rod of the coil holder having a plurality of guide rods arranged in an annular shape corresponding to the inner teeth of the stator core. Set the coil so that one side is under the adjacent coil and enters the predetermined gap, the other side of the coil overlaps the adjacent coil on the opposite side and enters the predetermined gap, and the entire coil overlaps spirally In coil winding and setting equipment,
The coil holder, a winding holder for winding a conductor around the outer periphery to form a coil, a conductor supply device for supplying the conductor to the winding holder while moving relative to the winding holder, and a winding A first rotating device that rotates the coil winding holder during wiring, a presser plate that is disposed on both sides of the winding holder and presses both sides of the coil held by the winding holder, and the winding holding Coil matching means for aligning the coil held by the tool with a predetermined gap of the guide rod of the coil holder, and coil dropping means for dropping the coil held by the winding holder into the predetermined gap of the coil holder. Prepared,
The winding holder includes a movable tool composed of a pair of movable plates whose distance can be changed by a parallel link, and a winding that is inserted into the movable tool during winding to hold the movable plate in an expanded state. A wire former, and an insertion former inserted into the movable tool when the coil is dropped to hold the movable plate in a reduced diameter state,
In the state where the winding form is inserted into the movable tool and a coil is formed by winding a conductive wire around the outer periphery of the winding holder, the winding reel is extracted from the movable tool and the insertion tool is inserted. By inserting a winding mold into the movable tool and rotating the parallel link while pressing both sides of the coil with the presser plate to reduce the distance between the pair of movable plates, the one side of the coil is reduced. It is configured to be slanted at a low position relative to the other side,
The coil matching means includes: a winding holder moving means for moving the winding holder to a predetermined position on the coil holder; and a side portion of each of the coils held obliquely by the winding holder. And a second rotating device for rotating the coil holder so as to align with a predetermined gap of the guide rod of the coil holder.   The coil dropping means includes a guide groove formed on an outer surface of the movable plate of the movable tool, a slide plate slidably mounted along the guide groove, and a claw portion mounted on the slide plate so as to be able to appear and retract. And lowering the slide plate in a state in which the claw portion is protruded, and pushing down the coil wound around the outer periphery of the winding holder by the claw portion, the side portion of the corresponding coil is 7. The coil winding / setting device according to claim 6, wherein the coil winding / setting device is configured to drop into a predetermined gap of the guide rod.   A plurality of the claw portions are provided along the length direction of the slide plate corresponding to each coil wound around the outer periphery of the winding holder, and each coil corresponds when the slide plate is lowered. When the slide plate is raised by being pushed down by the claw portions to be moved, the claw portion is immersed in the slide plate and passes through the inside of the coil positioned above to engage with the upper portion of the coil. The coil winding and setting device according to claim 7.   The winding holder is provided with at least one set of three corresponding to the U-phase, V-phase, and W-phase coils, and the press plate is provided between and on both sides of the three winding holders. The winding holders on both sides and the holding plate are rotatably supported so that their ends can be moved close to and away from the central winding holder. With respect to the winding holder, the winding holder is rotated by the first rotating device at the position where the winding holders on both sides and the holding plate are turned away from each other, and the winding operation is performed at the center. The coil holding operation is performed at a position where the winding holders on both sides and the presser plate are rotated so as to approach each other. The coil winding and setting device according to any one of the above.