JP2023097179A - Coil winding/inserting apparatus - Google Patents

Abstract

To provide a coil winding/inserting apparatus with which a work for winding a wire to form a coil and inserting the coil into holding grooves in a transfer block can be efficiently performed.SOLUTION: A coil winding/inserting apparatus includes a winding frame 101, a support shaft 103 mounted on the winding frame, a holder 120 holding the support shaft in a rotatable manner, a support portion 125 having a circulation path on which the holder can move, driving means for moving the holder along the circulation path, a winding device 140 that performs winding while rotating the winding frame when the holder is positioned in one point on the circulation path, and a transfer device 160 that inserts a coil C wound around the winding frame into a plurality of holding grooves in a transfer block 163 which entirely has a columnar shape, when the holder is positioned in another point on the circulation path. The holding grooves are formed radially so as to be open toward the outer circumference from the axial center portion.SELECTED DRAWING: Figure 17

Description

In the present invention, a coil is formed by winding through a winding frame, and the coil has a cylindrical shape as a whole, and a plurality of holding grooves are radially formed so as to open from the axial center toward the outer periphery. It relates to a coil winding and insertion device adapted to be inserted into a transfer block having

In Patent Document 1 by the applicant of the present application, U-phase, V-phase, and W-phase coils are respectively wound to form a cylindrical shape as a whole. Each of the U-phase, V-phase, and W-phase coils is inserted into the holding grooves of a coil holding jig (hereinafter referred to as a "transfer block") having a plurality of holding grooves formed in the coil so as to overlap in a spiral manner. The coil holding jig is inserted into the inner circumference of the stator core, and the side portion of the coil held in the holding groove is pushed outward in the radial direction toward a predetermined slot of the stator core. A coil inserting method is disclosed in which the coil is inserted into the slot from the inner peripheral side.

JP 2019-195268 A

According to the method of Patent Document 1, the coils already held in a helically overlapped state on the transfer block are pushed out radially outward toward a predetermined slot of the stator core, and are pushed out from the inner peripheral side of the stator core. By inserting it into the slot, it is possible to manufacture a helically wound stator core that is inserted into the slot so that a plurality of coils are helically overlapped one side at a time.

However, in order to efficiently perform the work of forming a coil by winding and inserting the coil into the holding groove of the transfer block, further ingenuity has been required.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to form a coil by winding the coil, which has a cylindrical shape as a whole and has a plurality of radially formed holding grooves opening from the axial center toward the outer periphery. To provide a coil winding/inserting device capable of efficiently inserting the above-wound coil into a holding groove of a transfer block.

In order to achieve the above object, the coil winding/insertion device of the present invention includes:
a winding frame;
a spindle attached to the bobbin;
a holder that rotatably holds the support shaft;
a support portion having a circular path along which the holder can move;
a driving means for moving the holder along the circular path;
a winding device that performs winding by rotating the winding frame when the holder is positioned at one point on the winding path;
The holding of the transfer block, which has a plurality of holding grooves radially formed so as to be cylindrical as a whole and open from the axial center to the outer circumference when the holder is positioned at another part of the circular path. a transfer device for inserting the coil wound around the winding frame into the groove,
A pair of the winding frames are provided on the winding path, and when one winding frame is positioned at the winding device and the winding is performed, the other winding frame is positioned at the transfer device and the winding is performed. the coil is configured to be inserted into the holding groove of the transfer block,
The winding frame has three pairs of winding frames for winding the U-phase, V-phase, and W-phase coils, respectively. and the winding device is provided,
The transfer device is characterized in that a rotating mechanism is provided for rotating the winding frame so that the end surface of the winding frame of each phase faces the peripheral surface of the transfer block.

In the coil winding/inserting device of the present invention, the support portion includes an outer frame having a pair of parallel portions and a pair of folded portions connecting both ends of each parallel portion, and a coil parallel to the parallel portions inside the outer frame. the circulating path is formed between the outer frame and the partition, and the rollers attached to the holder are fitted between the outer frame and the partition. The holder is movably supported along the winding path, the winding device is provided on one of the pair of folded portions, and the transfer device is provided on the other of the pair of folded portions. preferably.

Further, pressing members that reciprocate in parallel with the parallel portions are provided outside the pair of parallel portions of the outer frame, respectively, and the pressing members are engaged with the holder only when moving in one direction. A push lever is provided to move the holder in a predetermined direction along the circulating path, and a reverse movement prevention lever is provided at the folded portion to prevent the holder from moving backward and move the holder only in one direction. is preferably provided.

Further, the winding frame has an elongated shape having a major axis and a minor axis when viewed from the axial direction of the support shaft, and is arranged such that the major axis direction is parallel to the parallel part when moving the parallel part. Preferably, the transfer block is supported so that its axis is parallel to the parallel portion.

Furthermore, in a state in which the winding frame wound by the winding device is moved to the transfer device, and the winding frame that has finished inserting the coil into the transfer block by the transfer device is moved to the winding device, Each winding frame is held so that its long axis direction is parallel to the parallel portion, and the connecting wire connected to the winding frame moved to the transfer device is arranged along the long axis direction of the winding frame moved to the winding device. It is preferable that the clamp-cum-cutter device is arranged adjacent to the side surface of the connecting wire, and the clamp-cum-cutter device is arranged on the path of the connecting wire.

Further, the connecting wire is cut by the clamp/cutter device after the coil wound around the tip of the winding frame moved to the transfer device is inserted into the holding groove of the transfer block. It is preferable that

According to the coil winding/inserting device of the present invention, the work of winding the coil on the bobbin by the winding device and the work of inserting the wound coil into the holding groove of the transfer block by the transfer device are carried out in parallel. Since the winding and insertion work of the coil can be performed quickly. In addition, there are three pairs of winding frames for winding the U-phase, V-phase, and W-phase coils, respectively, and a holder, a support portion, a driving means, and a winding device are provided for each winding frame of each phase. Therefore, the coils of each phase can be wound simultaneously, moved to the transfer device, and the coils of each phase can be sequentially inserted.

1 is a front view showing an embodiment of a coil winding/inserting device of the present invention; FIG. FIG. 2 is an enlarged view of part A of FIG. 1; FIG. 4 is a plan view showing a supporting portion having a winding path used in the same coil winding/inserting device; 4 is an enlarged view of a portion B of FIG. 3; FIG. It is a front view which shows the winding device of the same coil winding and insertion apparatus. FIG. 6 is an enlarged view of a coil C portion of FIG. 5; It is a side view of the winding device. It is the elements on larger scale which show the structure of the conductor retainer of the same winding apparatus. It is a front view which shows the winding start state of the same winding apparatus. It is a front view which shows the winding completion|finish state of the same winding device. It is a front view which shows the winding frame movement state of the same coil winding and insertion apparatus. It is a top view which shows the winding frame movement state of the same coil winding and insertion apparatus. 13 is an enlarged view of part D of FIG. 12; FIG. FIG. 3 is a plan view showing a state in which a wound winding frame is moved to a transfer device and an empty winding frame after coil insertion is moved to the winding device in the same coil winding/inserting device; FIG. 10 is a front view showing a state in which a wound winding frame is moved to the transfer device and an empty winding frame after coil insertion is moved to the winding device in the same coil winding/inserting device; FIG. 10 is a side view showing a state in which a wound winding frame is moved to the transfer device and an empty winding frame after coil insertion is moved to the winding device in the same coil winding/inserting device; FIG. 10 is a front view showing a state in which a transfer block is arranged below the winding frame moved to the transfer device in the same coil winding/inserting device; 3 is a side view showing a state in which the winding frames are rotated so that the end surfaces of the winding frames on which the U-phase, V-phase, and W-phase coils are wound face the corresponding holding grooves of the transfer block. FIG. In the same coil winding/insertion device, a transfer block is arranged below the winding frame moved to the transfer device, and the end face of each winding frame on which the U-phase, V-phase, and W-phase coils are wound corresponds to the transfer block. FIG. 11 is a side view showing a state in which the bobbin has been rotated so as to face the holding groove; It is a side view which shows the principal part of the coil insertion apparatus in the same coil winding and insertion apparatus. FIG. 4 is a front view showing a state in which the first coil of the U-phase winding frame is inserted into the corresponding holding groove of the transfer block in the same coil winding/insertion device;

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, this coil winding/inserting device 100 has a winding frame 101 . Also referring to FIG. 5 , the winding frame 101 has a frame main body 102 and a support shaft 103 . Further, as shown in FIG. 4, the bobbin 101 has an elongated boat-like shape with flat both side surfaces and both tapered end surfaces when viewed in a plan view.

As shown in FIGS. 5 and 6, a plurality of tilting pieces 104 arranged vertically are attached to both end surfaces of the bobbin 101 . Each tilting piece 104 is rotatably supported by a support shaft 105 and is normally rotated outward by a predetermined angle by a spring 106 so that the lower edge projects outward. When the conductor wire 112 is wound around the winding frame 101 to form the coil C, the lower edge of the tilting piece 104 protrudes outward to prevent the coil C from slipping down. A pushing member 107 is inserted through each of the tilting pieces 104 arranged in the vertical direction, and as shown in FIG. , when the coil C is inserted into the holding groove 168 of the transfer block 163, the pushing member 107 is pushed by the operation of the pushing device 113, and the tilting piece 104 rotates inward against the biasing force of the spring 106. , the coil C can be moved downward. The tilting piece 104 on the right side of FIG. 5 represents a state in which the tilting piece 104 has been rotated inward in order to explain the above state.

As shown in FIGS. 7 and 8, a pair of conductor retainers 108 are rotatably attached to the upper ends of opposite sides of the winding frame 101 by support shafts 109 . The conductor retainer 108 is normally biased to be closed by a spring 110 so that the winding start end of the conductor 112 is clamped between a retaining portion 111 provided at one end and the side surface of the winding frame 101 . It has become. The conducting wire 112 is composed of a plurality of parallel wires arranged in a line to form a belt-like shape and wound around the bobbin 101 . As shown in FIG. 20, when the winding frame 101 moves to the transfer device 160 in a manner described later and the coil C is inserted into the holding groove 168 of the transfer block 163 as shown in FIG. By the operation, the other end of the conductor retainer 108 is pushed, the conductor retainer 108 is opened, and the winding start end of the conductor 112 is released.

Next, the holder 120 that supports the winding frame 101 and the support portion 125 that movably supports the holder 120 will be described. As shown in FIGS. 1 and 2, the winding frame 101 is rotatably supported by a holder 120 holding a spindle 103 . The holder 120 has a bearing 121 that holds the support shaft 103 , and the bearing 121 is rotatably connected to the movable base 122 via a rotation shaft 173 . A rotating shaft 123 is inserted through the movable base 122 , and rollers 124 are attached to both ends of the rotating shaft 123 .

The holder 120 is supported by a support portion 125 having a circular path. Also referring to FIG. 3 , the support portion 125 has an outer frame 126 . The outer frame 126 has a parallel portion 126a and a folded portion 126b connecting both ends of the parallel portion 126a. and a widened portion that extends to form a straight line and is connected to the parallel portion 126a.

Between a pair of parallel portions 126a extending parallel, a partition portion 127 extending parallel to the parallel portions 126a is arranged. The interval between the parallel portion 126a and the partition portion 127 is set to the interval to which the roller 124 fits. It is rotatably supported along the outer frame 126 via the outer frame 126 .

As shown in FIGS. 3 and 4, a reverse movement prevention lever 129 is attached to both ends of the partition 127 via a rotating shaft 128, and the reverse movement prevention lever 129 is moved by a spring (not shown) to the direction indicated by the arrow in FIG. It is biased to rotate as indicated by A. When the roller 124 of the holder 120 supporting the bobbin 101 reaches the end of the partition 127, the anti-reverse lever 129 is rotated as shown by the imaginary line in FIG. 4 against the biasing force of the spring. , passes through the end of the anti-reverse lever 129 and reaches the arcuate end of the folded portion 126b, as indicated by the arrow B in FIG. After the roller 124 has passed, the anti-reverse lever 129 returns to the position indicated by the solid line in FIG. 4 by the biasing force of the spring.

A pair of rodless air cylinders 130 extending parallel to the parallel portion 126a are arranged on both sides of the outer frame 126. As shown in FIG. Each rodless air cylinder 130 is attached with a slider that slides by air pressure, and this slider constitutes the pushing member 131 of the present invention. A push lever 132 is rotatably attached to the push member 131 . The push lever 132 is biased by a spring (not shown) so as to open at a right angle to the rodless air cylinder 130, and as shown by the imaginary line in FIG. It is possible to close.

In the state of FIG. 4, when the pushing member 131 moves toward the opposite end of the rodless air cylinder 130, the pushing lever 132 engages with the rotating shaft 123, and the roller 124 moves along the parallel portion 126a. , moves as indicated by the arrow b in FIG. At this time, since the anti-reverse lever 129 has returned to the position indicated by the solid line in FIG. 4, the roller 124 is guided by the anti-reverse lever 129 as shown in FIG. move along. Along with the movement of the roller 124, the winding frame 101 supported via the holder 120 also moves.

This operation is performed by the pushing members 131 provided on the pair of rodless air cylinders 130 simultaneously and in opposite directions. That is, in FIG. 1, the winding device 140 is arranged at one end of the outer frame 126 that constitutes the support portion 125, and the transfer device 160 is arranged at the other end. A pair of winding frames 101 are supported by the supporting portion 125 via a holder 120, and in FIGS. , the winding frame 101 to which the coil has been inserted and the coil is not attached is arranged at the end on the transfer device 160 side. In this state, when the pushing member 131 attached to one rodless air cylinder 130 (upper rodless air cylinder 130 in FIG. 3) and positioned on the transfer device 160 side moves toward the winding device 140 side, the pushing member 131 moves toward the winding device 140 side. A push lever 132 attached to a member 131 is engaged with the rotating shaft 123 (see FIG. 4), and the winding frame 101 with no coil attached moves to the winding device 140 side. Further, when the pushing member 131 (lower pushing member 131 in FIG. 3) attached to the other rodless air cylinder 130 and positioned on the winding device 140 side moves toward the transfer device 160 side, the pushing member A push lever 132 attached to 131 is engaged with the rotating shaft 123, and the winding frame 101 with the coil wound thereon moves to the transfer device 160 side.

In this way, the winding frame 101 moves to the opposite end of the outer frame 126, and after the winding frame 101 arranged on the winding device 140 side and the winding frame 101 arranged on the transfer device 160 side are exchanged, The pushing member 131 moved to the opposite side is turned back by the operation of the rodless air cylinder 130 to return to its original position. At this time, the pushing lever 132 of the pushing member 131 collides with the rotating shaft 123. As described with reference to FIG. It rotates in the closing direction with respect to the rodless air cylinder 130 against the biasing force of a spring (not shown), and after passing through the rotating shaft 123, it opens perpendicularly to the rodless air cylinder 130 again due to the biasing force of the spring. It's like

Next, the winding device 140 will be described. As shown in FIGS. 5 and 7, the winding device 140 includes a support plate 141 erected from the substrate 115 (see FIG. 1) of the coil winding and insertion device 100, and an air cylinder 155 provided on the support plate 141. and a motor 142 attached to the lifting base 154 and movable up and down by the air cylinder 155 . A rotating arm 143 is attached to the rotating shaft of the motor 142 , and pins 144 projecting upward are provided at both ends of the rotating arm 143 . This pin 144 is inserted into an engaging hole 145 provided in the lower end surface of the bobbin 101 when the motor 142 is raised, so that the rotation of the rotary arm 143 is transmitted to the bobbin 101 .

Referring to FIGS. 1 and 3 again, a first elevating rail 146 extending vertically is installed on one side of the support plate 141 via a frame (not shown). 1 lift base 147 is installed so that it can be lifted. Also, a motor 149 is provided to move the first lifting base 147 up and down. A pair of guide rollers 148 are attached to the first elevating base 147, and the conductor wire 112 drawn out from a conductor reel (not shown) is sandwiched between the pair of guide rollers 148 so as to guide the winding position of the conductor wire 112. It's becoming

Further, on the opposite side of the support plate 141, a second elevating rail 150 extending vertically is installed via a frame (not shown). installed as possible. A cutting and clamping device 152 is attached to the second elevating base 151 . Also, a motor 153 is provided to move the second lifting base 151 up and down. Therefore, the cutting and clamping device 152 is moved up and down together with the second lifting base 151 by the motor 153 . The cutting and clamping device 152 includes a cutter that cuts the conductor wire 112 and a clamper that clamps one end of the cut conductor wire 112 (the end connected to the conductor reel). Since the structure of the cutting and clamping device 152 is known as disclosed in, for example, Japanese Patent No. 6867236, detailed description thereof will be omitted.

Next, the transfer device 160 will be described. As shown in FIGS. 11, 15, 17, and 19, the transfer device 160 includes a base 161 installed on the substrate 115 and a pair of air cylinders 174 installed on the top of the base 161 which extend in parallel. and a rod 162 . A rotating support shaft 164 extending parallel to the telescopic rod 162 is rotatably supported at one end of the telescopic rod 162 via a support plate 165 . The rotary support shaft 164 forms a spline shaft and is inserted through a spline hole at the center of the transfer block 163 to support the transfer block 163 . The rotary support shaft 164 is rotated at a set angle by a motor 166 provided on a support plate 165, and a transfer block 163 supported by spline fitting on the rotary support shaft 164 is also attached. It is designed to rotate. Particularly, as shown in FIG. 19, the transfer block 163 has a cylindrical shape as a whole. It has a plurality of blades 169 protruding radially and holding grooves 168 formed between the blades 169 . The structure of this transfer block 163 is described in detail in the above-mentioned Patent Document 1 (Japanese Patent Application Laid-Open No. 2019-195268), so detailed description thereof will be omitted.

As shown in FIG. 16, the coil winding/insertion device 100 has a U-phase coil winding/insertion unit 170, a V-phase coil winding/insertion unit 171, and a W-phase coil winding/insertion unit 172. , a pair of winding frames 101 are rotatably supported via the above-described support portion 125 at each coil winding/insertion portion, and the above-described winding device 140 is installed at one end of the support portion 125. ing. Then, the transfer device 160 transfers each of the UVW coils C wound by the U-phase coil winding/insertion portion 170, the V-phase coil winding/insertion portion 171, and the W-phase coil winding/insertion portion 172. As shown in Patent Document 1 (Japanese Unexamined Patent Application Publication No. 2019-195268), it is inserted and held in the holding groove 168 of the block 163 so as to overlap spirally.

The bearing 121 of the holder 120 is rotatably supported with respect to the movable base 122 via the rotation shaft 173 as described above, and the winding frame 101 around which the VW coil C is wound is driven by a drive (not shown). 18 and 19, the lower end surface of each winding frame 101 of the UVW is adapted to the peripheral surface of the transfer block 163 by the apparatus. In addition, the lower end surface of the winding frame 101 forms an arc-shaped curved surface that fits the peripheral surface of the transfer block 163 when viewed from the axial direction. The transfer block 163 is supported by a rotary support shaft 164, and after the bearing 121 of the winding frame 101 around which the VW coil C is wound rotates as described above, the transfer block 163 is moved below each winding frame 101 by the movement of the telescopic rod 162. It is designed to move to Four coils C are wound on each winding frame 101 of the UVW at predetermined intervals in the longitudinal direction.

In particular, as shown in FIG. 19, a pair of slide bars 180 are arranged on both sides of each winding frame 101 in this state. is installed. Each push-down claw 181 has its base end pivotally supported by the slide bar 180 and its tip end urged downward by a spring (not shown). It is designed not to engage coil C when 180 is raised. Before the coil C is inserted into the transfer block 163, the push-down claw 181 is positioned on the base end side of the winding frame 101 with respect to the coil C, and the slide bar 180 moves to move the push-down claw 181 to the winding frame. When moving to the tip side of 101, the coil C is pushed and sent out to the tip side of the winding frame 101. - 特許庁Further, when the slide bar 180 moves in the opposite direction and the push-down claw 181 moves toward the base end of the winding frame 101, the push-down claw 181 rotates against the biasing force of the spring, causing the coil C to rotate. It is arranged so as to be overridden and located on the base end side thereof.

The transfer device 160 also has the pressing device 113 described above. The pressing device 113 rotates the tilting piece 104 of the winding frame 101 inwardly against the biasing force of the spring 106 (see FIGS. 5 and 6) so that the coil C can move downward. The transfer device 160 also has the opening device 114 described above. The opening device 114 pushes the other end of the conductor retainer 108 of the bobbin 101 to open the conductor retainer 108 and release the winding start end of the conductor 112 .

Next, a coil winding/inserting method using this coil winding/inserting apparatus 100 will be described. The coil winding/insertion device 100 is formed by winding U-phase, V-phase, and W-phase coils C, as disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2019-195268), for example. , the U-phase, V-phase, and W-phase coils C are inserted and held in the holding grooves 168 of the transfer block 163 so as to be spirally overlapped, and the transfer block 163 is inserted into the inner circumference of the stator core (not shown) and held. The side portions of the coils C held in the grooves 168 are pushed radially outward toward predetermined slots of the stator core, and are inserted into the slots from the inner peripheral side of the stator core, whereby the plurality of coils are assembled together. It is applied to the coil winding/insertion method in which the coils are inserted into the slots so that each side overlaps spirally, and it is a device for performing the work from winding to inserting the coils into the holding grooves 168 of the transfer block 163 . .

First, as shown in FIG. 20, the winding operation is started with the empty winding frame 101 moved to the winding device 140 . During the winding operation, as shown in FIG. 6, the tilting piece 104 of the winding frame 101 is opened outward at a predetermined angle with respect to the frame main body 102 to prevent the wound coil C from slipping down. there is In this state, the motor 142 shown in FIGS. 5, 7, and 9 is raised, and the pin 144 provided on the rotating arm 143 is inserted into the engaging hole 145 (see FIG. 5) of the bobbin 101, and the rotating arm 143 and The winding frame 101 is connected, and the rotational force of the motor 142 is transmitted to the winding frame 101 .

A conductor wire 112 drawn out from a conductor reel (not shown) is sandwiched between a pair of guide rollers 148 and guided to a winding position with respect to the bobbin 101 . The guide roller 148 is moved up and down by the operation of the motor 149 to guide the winding position of the conducting wire 112 . The winding start end of the conductor wire 112 is held by a conductor retainer 108 shown in FIG. When the motor 142 is operated to rotate the winding frame 101, the conductor wire 112 is wound around the winding frame 101 to form the coil C. As shown in FIG. At this time, the guide roller 148 is moved from the top to the bottom of the winding frame 101 so that the conducting wire 112 is wound side by side without overlapping. When one coil C is wound, the conductor wire 112 can be wound by changing the winding direction through a hook portion (not shown) provided on the winding frame 101, if necessary. Thus, a plurality of coils C are formed from the top to the bottom of the winding frame 101, and the winding operation ends when the winding position approaches the lower end of the winding frame 101. FIG.

On the other hand, as shown in FIGS. 17 and 20, the winding frame 101 on which the wound coil C is mounted is moved to the transfer device 160, and concurrently with the winding operation by the winding device 140, A coil insertion operation to the transfer block 163 is performed. When the winding operation by the winding device 140 and the coil insertion operation by the transfer device 160 are completed, the state shown in FIG. 1 is reached. That is, the winding frame 101 on which the wound coil C is mounted is arranged on the winding device 140 side, and the winding frame 101 emptied by inserting the coil into the transfer block 163 is arranged on the transfer device 160 side. It is

In this state, the winding frame 101 arranged on the winding device 140 side and the winding frame 101 arranged on the transfer device 160 side are exchanged. 3 moves from the transfer device 160 side (left side in the drawing) to the winding device 140 side (right side in the drawing), and the pushing member 131 at the bottom of the drawing moves to the winding device. It moves from the 140 side (right side in the figure) to the transfer device 160 side (left side in the figure). As a result, as shown in FIG. 4, the push lever 132 attached to the push member 131 is engaged with the rotating shaft 123 to move the winding frames 101 in the above direction. At this time, the movement direction is regulated as indicated by arrows B in FIGS. The winding frame 101 placed on the side of the winding device 140 passes through the lower part of the outer frame 126 in the figure. At this time, each winding frame 101 is supported by a support mechanism (not shown) so as to be parallel to the parallel portion 126a of the outer frame 126, and the pair of winding frames 101 can pass each other with a narrow width.

14 and 15 show a state in which the winding frame 101 on which the coil C wound in this way is mounted moves to the transfer device 160 side and the empty winding frame 101 moves to the winding device 140 side. At this time, the conducting wire 112 connected to the winding frame 101 on which the wound coil C is mounted from the conducting wire reel (not shown) through the guide roller 148 moves along the side of the empty winding frame 101 moved to the winding device 140 side. pulled out to pass. This facilitates holding of the conductor 112 by the conductor retainer 108 described above. Note that the cutting and clamping device 152 is arranged below the portion of the conductor wire 112 that serves as a connecting wire. In this state, the winding operation described above is performed on the winding device 140 side, and the coil is inserted into the transfer block 163 on the transfer device 160 side.

The coil insertion operation by the transfer device 160 will be described. First, from the state shown in FIG. As a result, the winding frame 101 of the V-phase coil winding/insertion portion 171 and the W-phase coil winding/insertion portion 172 rotates as shown in FIGS. Then, the transfer block 163 shown in FIG. 16 is attached to the rotary support shaft 164, and the telescopic rod 162 is moved to a position where the transfer block 163 comes close to or comes into sliding contact with the lower end surface of the winding frame 101 of each phase. 18 and 19, when the rotary support shaft 164 is rotated by the operation of the motor 166, the transfer block 163 spline-engaged with the rotary support shaft 164 is also rotated, and the predetermined holding groove 168 of the transfer block 163 is held. , the end face of a predetermined winding frame 101 is aligned.

Prior to inserting the coil, the pressing device 113 is actuated to rotate the tilting piece 104 of the winding frame 101 inward against the biasing force of the spring 106 (see FIGS. 5 and 6), so that the coil C moves downward. allowed to move. Further, the opening device 114 is actuated to push the other end of the conductor retainer 108 of the bobbin 101 to open the conductor retainer 108 and release the winding start end of the conductor 112 .

The coils are inserted by the transfer device 160 by controlling the motor 166 so that the end face of the winding frame 101 of each phase is sequentially aligned with the predetermined holding groove 168 of the transfer block 163, and the coils C of each phase are inserted in a predetermined order. done. When the slide bars 180 arranged on both sides of the corresponding winding frame 101 slide downward, the coil C is pushed down by the depressing claws 181 attached to the slide bars 180, and the transfer block 163 is moved to a predetermined position. by inserting it into the retaining groove 168 . When one coil C is inserted, the slide bar 180 slides upward and returns to its original position. It climbs over the coil C and reaches its upper part. As a result, when the slide bar 180 moves downward again, the next coil C is inserted into the holding groove 168 of the transfer block 163 . Each time one coil C is inserted, the motor 166 is actuated to rotate the transfer block 163, and the next coil C is rotationally positioned so as to be aligned with the predetermined holding groove 168. FIG. In this way, the UVW phase coils C are inserted into the holding grooves 168 of the transfer block 163 so as to be spirally overlapped.

As described above, the winding operation by the winding device 140 and the coil insertion operation by the transfer device 160 are performed in parallel. moves and the winding frame 101 is replaced.
Thus, according to the present invention, the winding operation by the winding device 140 and the coil insertion operation by the transfer device 160 can be performed in parallel, so that the coil winding and insertion work can be performed quickly. can be done. It also has three pairs of winding frames 101 for winding U-phase, V-phase, and W-phase coils, respectively. Since the airless cylinders 130 and 131, the push lever 132, and the winding device 140 are provided, the winding of each phase is performed simultaneously, and the transfer device 160 is moved to sequentially insert the coils C of each phase. be able to.

Further, according to this embodiment, the support portion 125 includes an outer frame 126 having a pair of parallel portions 126a and a pair of folded portions 126b connecting both ends of each parallel portion 126a, and the parallel portions 126a inside the outer frame 126. and a partition portion 127 arranged in parallel with the outer frame 126, a circular path is formed between the outer frame 126 and the partition portion 127, and a roller 124 mounted on a rotating shaft 123 of the holder 120 separates the outer frame 126 127 and the holder 120 is supported so as to be movable along the winding path. Therefore, the winding path can be formed narrow, and the U-phase, V-phase, and W-phase winding paths can be arranged at relatively narrow intervals. Alignment with the holding groove 168 of the transfer block 163 can be facilitated.

Furthermore, according to this embodiment, pushing members 131 that reciprocate parallel to the parallel portion 126a are provided outside the parallel portion 126a of the outer frame 126, and the pushing members 131 move in one direction. A pushing lever 132 is provided that engages with the holder 120 only when the holder 120 moves in a predetermined direction along the circulating path, and the folded portion 126b prevents the holder 120 from moving backward and only moves in one direction. Since the reverse movement prevention lever 129 is provided, the holder 120 can be moved along the circular path with a simple structure by the pushing member 131 that reciprocates in parallel with the parallel portion 126a.

Further, according to this embodiment, the bobbin 101 has an elongated shape having a long diameter and a short diameter when viewed from the axial direction of the support shaft 103, and when moving the parallel portion 126a, the long diameter direction is parallel to the parallel portion 126a. 126a, and the transfer block 163 is supported so that its axis is parallel to the parallel portion 126a. , the holding groove 168 of the transfer block 163 and the winding portion of the bobbin 101 can be easily aligned.

Furthermore, according to this embodiment, the holder 120, the support portion 125, and the drive means for the holder 120 (rodless air cylinders 130, 131, push lever 132) are provided for each winding frame 101 of each phase of UVW. Since the transfer device 160 is provided with a rotating mechanism (bearing 121, movable base 122) that rotates so that the end surface of the winding frame 101 of each phase of UVW is adapted to the peripheral surface of the transfer block 163, It is possible to efficiently insert the coils C for each phase of the UVW.

100 Coil winding/insertion device 101 Winding frame 102 Frame main body 103 Support shaft 104 Tilting piece 105 Support shaft 106 Spring 107 Pressing member 108 Lead wire retainer 109 Support shaft 110 Spring 111 Presser portion 112 Lead wire 113 Depressing device 120 Holder 121 Bearing 122 Movable Base 123 Rotating shaft 124 Roller 125 Supporting portion 126 Outer frame 126a Parallel portion 126b Folding portion 127 Partitioning portion 128 Rotating shaft 129 Reverse movement prevention lever 130 Rodless air cylinder 131 Push member 132 Push lever 140 Winding device 141 Support plate 142 Motor 143 Rotating arm 144 Pin 145 Engagement hole 147 First elevating base 148 Guide roller 149 Motor 150 Second elevating rail 151 Second elevating base 152 Cutting and clamping device 153 Motor 154 Elevating base 155 Air cylinder 160 Transfer device 161 Base 162 Expansion rod 163 Transfer block 164 Rotating shaft 165 Support plate 166 Motor 167 Cylindrical portion 168 Holding groove 169 Blade portion 170 U-phase coil winding/insertion portion 171 V-phase coil winding/insertion portion 172 W-phase coil winding/insertion portion 173 Rotating shaft 174 Air cylinder 180 Slide bar 181 Pressing claw C Coil

Claims (6)

a winding frame;
a spindle attached to the bobbin;
a holder that rotatably holds the support shaft;
a support portion having a circular path along which the holder can move;
a driving means for moving the holder along the circular path;
a winding device that performs winding by rotating the winding frame when the holder is positioned at one point on the winding path;
The holding of the transfer block, which has a plurality of holding grooves radially formed so as to be cylindrical as a whole and open from the axial center to the outer circumference when the holder is positioned at another part of the circular path. a transfer device for inserting the coil wound around the winding frame into the groove,
A pair of the winding frames are provided on the winding path, and when one winding frame is positioned at the winding device and the winding is performed, the other winding frame is positioned at the transfer device and the winding is performed. the coil is configured to be inserted into the holding groove of the transfer block,
The winding frame has three pairs of winding frames for winding the U-phase, V-phase, and W-phase coils, respectively. and the winding device is provided,
A coil winding, wherein the transfer device is provided with a rotation mechanism for rotating the winding frame so that the end surface of the winding frame of each phase faces the peripheral surface of the transfer block. insertion device. The support portion has an outer frame having a pair of parallel portions and a pair of folded portions connecting both ends of each parallel portion, and a partition portion disposed parallel to the parallel portions inside the outer frame, The circular path is formed between the outer frame and the partition, the rollers attached to the holder are fitted between the outer frame and the partition, and the holder moves along the circular path. 2. The coil winding device according to claim 1, wherein said winding device is provided on one of said pair of turn-back portions, and said transfer device is provided on the other of said pair of turn-back portions. insertion device. Pushing members that reciprocate parallel to the parallel portions are provided outside the pair of parallel portions of the outer frame, respectively, and the pushing members are engaged with the holder only when moving in one direction. A push lever is provided to move the holder in a predetermined direction along the circulating path, and a reverse movement prevention lever is provided to the folded portion to prevent the holder from moving backward and move the holder only in one direction. 3. The coil winding and inserting device according to claim 1 or 2, wherein The winding frame has an elongated shape having a major axis and a minor axis when viewed from the axial direction of the support shaft, and is held so that the major axis direction is parallel to the parallel section when moving the parallel section. The coil winding according to any one of claims 1 to 3, wherein the transfer block is supported so that its axis is parallel to the parallel portion. • Insertion device. The winding frame wound by the winding device is moved to the transfer device, and the winding frame whose coil has been inserted into the transfer block by the transfer device is moved to the winding device. is held so that its major axis direction is parallel to the parallel portion, and the connecting wire connected to the winding frame moved to the transfer device is a side surface along the major axis direction of the winding frame moved to the winding device 5. The coil winding according to any one of claims 1 to 4, wherein the clamp and cutter device is arranged on the path of the connecting wire. • Insertion device. After the coil wound around the tip of the winding frame moved to the transfer device is inserted into the holding groove of the transfer block, the connecting wire is cut by the clamp and cutter device. 6. The coil winding and insertion device of claim 5, wherein

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