JP2019000931A - Clamp and cutter device for conductor wire - Google Patents

Abstract

To provide a clamp and cutter device which releases an end part of a clamped conductor wire in a straight state after finishing winding.SOLUTION: A clamp and cutter device 100 includes a body 101, a conductor wire pulling member 124 extending from the body 101 and having a hook 125 at a tip; a slide block 106 for advancing/retreating with respect to the body 101; a clamper 110 mounted on the slide block 106; a cutting blade 112; and a pressing plate 118. When the slide block 106 moves toward the hook 125, a conductor wire W is clamped by the clamper 110 and is cut by the cutting blade 112. At this time, the conductor wire W is held at side surfaces 131 of the hook 125 by the pressing plate 118. When the slide block 106 is made to retreat until the clamp by the clamper 110 is released and the conductor wire W is pulled out in that state, curve of the conductor wire W is reformed by the pressing plate 118, and an end part becomes straight.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a wire clamp and cutter device used in a winding machine or the like.

  For example, as shown in Patent Document 1 below, in a winding device for making a stator of an electric motor, a plurality of coils are continuously wound, and after winding one coil The wire between the winding nozzle and the coil is pulled out by a clamp and cutter device, the coil side of the drawn wire is cut and separated, and the winding nozzle side is clamped to Winding work is started.

  Such a clamp and cutter device includes a hook for hooking a conducting wire, a clamp for clamping the hooked conducting wire between the hook, and a cutting blade that slides between the hook and cuts the conducting wire. Is used.

Japanese Patent No. 4456173

  However, in the conventional clamp and cutter device, the end of the clamped conductor is released in a bent state after the end of winding, so that the end Wb of the conductor W is bent as shown in FIG. It has become. For this reason, in order to protect the end portion Wb of the conducting wire W with the resin tube 17, when the end portion Wb of the conducting wire W is to be covered with the resin tube 17, it is necessary to insert the end portion Wb of the conducting wire W after extending straight. There was a problem that workability was bad.

  Accordingly, an object of the present invention is to provide a clamp / cutter device in which the end of the clamped conductor is opened in a straight state after the end of winding.

  In order to achieve the above object, the lead wire clamping and cutter device of the present invention includes a main body movably supported by a driving device, a base end portion fixed to the main body and extended from the main body, and a distal end portion. A conductor drawing member in which a hook for hooking a conductor is formed, a slide block supported by the main body and moving forward and backward with respect to the main body, and held by a predetermined distance with respect to the slide block. A biasing force is normally applied in the protruding direction, and when the slide block moves in the direction of the hook, a clamper that elastically clamps a lead wire between the hook and the base is fixed to the slide block. The slide block is supported so as to protrude from the slide block, the slide block moves in the direction of the hook, and the conductor is led by the clamper. When clamped, a cutting blade that slidably contacts the hook and cuts the conducting wire hooked on the hook, and a base end side is fixed to the slide block and supported so as to extend from the slide block. When the slide block moves in the direction of the hook, the slide block is pressed against at least the side surface of the side surface of the hook through which the conductive wire clamped by the clamper passes and is hooked on the hook between the side surface A first position that allows the lead wire to be introduced between the hook and the clamper so that the cutting blade, the clamper, and the presser plate are separated from the hook. And a second position where the conductor is clamped by the clamper, the conductor is cut by the cutting blade, and the conductor is clamped by the presser plate, While clamping conductors by serial clamper is released, between a third position in which clamping of the conductor by the pressing plate is not released, characterized in that it is at least movable.

  According to the lead wire clamp and cutter device of the present invention, after the slide block is in the first position, the lead wire is hooked on the hook and pulled, and then the slide block is brought close to the hook and moved to the second position. Then, the conductor is clamped by the clamper, the conductor is cut by the cutting blade, and the conductor is sandwiched between the side surfaces of the hook by the presser plate. Next, when the slide block is moved backward with respect to the hook and moved to the third position, the lead wire clamp by the clamper is released. In this state, when the end of the clamped lead wire is pulled out, the lead wire is pulled out while being stretched by the presser plate, so that the end portion of the lead wire is opened in a state where it is straightened. After that, the slide block is moved backward with respect to the hook and moved to the first position, so that a space in which the conductor can be inserted is formed between the hook, the clamper, and the cutting blade. It can be drawn. Thus, according to the present invention, when opening the conducting wire, the conducting wire is pulled out while being stretched by the presser plate, so that the end portion of the conducting wire can be opened in a straightened state, and the end portion of the conducting wire can be opened. The work of covering the resin tube or the like or connecting the end of the conductor to the terminal can be facilitated.

  According to a preferred aspect of the lead wire clamp and cutter device of the present invention, an insertion groove of the cutting blade is formed on a surface to which the lead wire of the hook is hooked, and the cutting blade is located inside the insertion groove. The conductor is configured to slidably contact the wall and cut the conductive wire. According to this aspect, since the cutting blade is inserted into the insertion groove from the direction intersecting the conductive wire in a state where the conductive wire is arranged so as to cross the insertion groove at the hooking surface of the clamp, the cutting end surface of the conductive wire is The surface is perpendicular to or close to the axis, the end of the conductor is not sharpened, and the risk of injury to the operator can be reduced. Incidentally, in the conventional clamp and cutter device, the cutting blade slides against the side surface of the hook to cut the conducting wire, so that the cut end surface Wa of the conducting wire W is cut obliquely as shown in FIG. The tip was sharp.

  Furthermore, in the said aspect, when the conducting wire is hooked on the said hook, it is preferable that a pair of said pressing plates is provided so that it may contact | abut on the both sides | surfaces of the said hook through which a conducting wire passes. According to this aspect, the slide block is moved from the first position to the second position, the conductor is clamped by the clamper, and the conductor is clamped by the cutting blade, and the side where the conductor is clamped is also The side where the conductive wire is separated is also sandwiched between the press plate and the side surface of the hook. Accordingly, when the side where the conductor is cut out is pulled out in this state, the conductor is pulled out while being stretched by the holding plate, so that the end of the conductor is opened in a state where the end of the conductor is straightened.

  According to a preferred aspect of the lead wire clamp and cutter device of the present invention, the hook is formed with one or a plurality of holding grooves into which the lead wire enters when the lead wire is hooked. According to this aspect, when the conducting wire is hooked on the hook, the conducting wire enters the holding groove and is held, so that the conducting wire is less likely to be displaced with respect to the hook, and is clamped by a later clamper, cutting by a cutting blade, When sandwiched by the pressing plate, the lead wire is prevented from being displaced with respect to the hook, and each operation can be performed reliably.

  When opening the lead wire, the lead wire is pulled out while being stretched by the holding plate, so the end of the lead wire can be opened in a straightened state, and the end of the lead wire can be covered with a resin tube or the like. The operation | work which connects an edge part to a terminal can be made easy.

It is a disassembled perspective view which shows one Embodiment of the clamp / cutter apparatus of the conducting wire which concerns on this invention. It is a perspective view of the clamp and cutter apparatus. It is a front view of the clamp and cutter device. It is a top view of the clamp and cutter apparatus. In the clamp and cutter apparatus, it is front sectional drawing of a state in which a slide block exists in a 1st position. In the clamp and cutter apparatus, it is a front sectional view of a state where a slide block is in a first position and a conductor is hooked. In the clamp and cutter apparatus, it is front sectional drawing of the state in the middle of a slide block moving to a 2nd position. In the clamp and cutter apparatus, it is front sectional drawing of the state which the slide block moved to the 2nd position. In the clamp and cutter device, after the slide block moves to the second position, it is a front cross-sectional view in a state in which the separated conducting wire is pulled out. In the clamp and cutter apparatus, it is front sectional drawing of the state which the slide block moved to the 3rd position. In the clamp and cutter device, after the slide block has moved to a third position, the released conducting wire is drawn out in a front sectional view. It is explanatory drawing for demonstrating operation | movement of the clamp and cutter apparatus in a winding apparatus. It is explanatory drawing which shows the state which covers a resin tube on the edge part of conducting wire. It is principal part sectional drawing which shows other embodiment of the clamp / cutter apparatus of the conducting wire which concerns on this invention. It is explanatory drawing which shows the state which covers a resin tube on the edge part of the conducting wire cut | disconnected by the conventional clamp and cutter apparatus.

  As shown in FIGS. 1 to 5, the clamp / cutter device 100 includes a main body 101 having a rectangular tube shape. A flange 102 is formed at the base end of the main body 101, and the flange 102 is fixed to the air cylinder 103 by a bolt 104.

  The inside of the main body 101 forms a storage portion 105, and the slide block 106 is slidably received in the storage portion 105. In addition, notches 108 are formed at the upper and lower edges of the opening 107 of the main body 101.

  A fitting groove 109 is formed on the base end surface of the slide block 106, and the cylinder rod 136 of the air cylinder 103 is fitted and connected to the fitting groove 109 (see FIG. 5). The slide block 106 moves forward and backward by the operation of the air cylinder 103.

  An insertion hole 111 into which the clamper 110 is inserted is formed in the slide block 106 along the axial direction. A mounting groove 113 in which the cutting blade 112 is mounted is formed on the inner periphery of the insertion hole 111. A screw hole 114 is formed in the cutting blade 112, and a hole 115 is formed in the slide block 106 correspondingly. Then, the cutting blade 112 is fixed to the slide block 106 by inserting the base end portion of the cutting blade 112 into the mounting groove 113, inserting the bolt 116 through the hole 115, and screwing it into the screw hole 114. As shown in FIG. 5, the head end surface of the bolt 116 is flush with the outer surface of the slide block 106 so that the slide block 106 does not become an obstacle when sliding in the housing portion 105 of the main body 101. Yes.

  Further, the slide block 106 is formed with a stepped portion 117 (see FIG. 1), and the base end portion of the presser plate 118 is attached to the stepped portion 117. That is, a hole 119 is formed in the base end portion of the presser plate 118, and a screw 120 is inserted into the hole 119 and screwed into a screw hole 121 formed in the stepped portion 117, so that the stepped portion 117 slides. Attached to the block 106. A guide surface 122 bent outward is formed at the distal end portion of the presser plate 118, and a bent portion at the base end of the guide surface 122 forms a presser portion 123. In this embodiment, the pressing plate 118 is fixed to the top end portion of the slide block 106 and the front end portion of the bottom surface, respectively.

  A conductor drawing member 124 is attached to the main body 101. The conducting wire drawing member 124 has a hook 125 and a base end portion 126 extending from the hook 125 in a rod shape. A screw hole 127 is formed at the distal end of the base end portion 126, and a bolt (not shown) inserted from the outside of the main body 101 is screwed into the screw hole 127 so that the lead wire drawing member 124 is fixed to the main body 101. It has become. The hook 125 has a hooking surface 128 that forms a base end surface, an insertion groove 129 formed in the hooking surface 128, and a pair of side surfaces 131. In the case of this embodiment, the pair of side surfaces 131 of the hooks 125 are surfaces arranged vertically as shown in FIG. In this embodiment, three holding grooves 130 into which the conductive wire W hooked on the hook 125 is introduced are formed at the corner portion of the one side surface 131 and the hooking surface 128. Note that at least one holding groove 130 may be provided, but preferably two or more, and more preferably three, in order to be inserted into one of the holding grooves 130 even if the position of the conductor W is shifted. It is good to provide the above. The cutting groove 112 is inserted into the insertion groove 129 so that the cutting edge of the cutting blade 112 is in sliding contact with the inner wall of the insertion groove 129, and the conductive wire W hooked on the hooking surface 128 of the hook 125 is cut. .

  On the other hand, the clamper 110 has a pressing block 132 for clamping the conductive wire W between the hook 125 and the hooking surface 128, a support shaft 133 extending from the center of the base end surface of the pressing block 132, and an outer periphery of the support shaft 133. A spring 134 that is mounted and a spring pin 135 that is mounted on the base end of the support shaft 133 are provided. As shown in FIG. 5, the support shaft 133 is inserted through a bearing plate 137 and a bearing plate 138 disposed inside the insertion hole 111, and is supported so as to be slidable in the axial direction. The spring 134 is disposed between the bearing plate 137 and the pressing block 132 and constantly biases the clamper 110 in the protruding direction. However, the spring pin 135 engages with the bearing plate 137 and further protrudes. Is regulated.

  The clamper 110 is used in a winding machine as shown in FIG. 12, for example. In this winding machine, a coil C is formed by winding a conductive wire W around a winding frame 13 mounted on a tooth portion 11 of a stator core 10. This winding machine has a conducting wire introducing cylinder 16 into which a conducting wire W is introduced, a winding head 14 attached to the upper end portion thereof, and a nozzle 15 extending from the winding head 14 in the outer diameter direction. ing. Then, when the lead wire introducing cylinder 16 is reciprocated in the axial direction by a driving device (not shown) and the nozzle 15 passes through the slot of the stator core 10, it is rotated by a predetermined angle and is moved to the slot opposite to the tooth portion 11. When the nozzle 15 is lowered and exited downward, the nozzle 15 rotates around the tooth portion 11 by repeating the operation of rotating again and entering the slot opposite to the tooth portion 11 and rising again. As a result, the coil C is formed.

  In such a winding operation, the clamp and cutter device 100 plays a role of holding the starting end portion of the conducting wire W from the start of winding until the conducting wire W is wound a predetermined number of times. When a predetermined number of windings are performed to form one pole coil C, the clamp and cutter device 100 is unwound from the nozzle 15 and extended to the coil C for the next winding operation. Get the lead wire W. At this time, the nozzle 15 is located at a position where it is pulled out from the lower side of the stator core 10, and the clamp and cutter device 100 is arranged so that the lead wire W stretched between the stator core 10 and the nozzle 15 is pulled by the hook 125. Moving. In this way, in a state where the conductive wire W is hooked on the hook 125 of the clamp and cutter device 100, the end of the conductive wire connected to the coil C already wound is cut at the same time as the conductive wire W is clamped in the manner described later. The end of the conductive wire W that is separated and connected to the nozzle 15 is held by the clamp and cutter device 100. Then, the nozzle 15 starts rotating around the other tooth portion 11 of the stator core 10 again, and the winding of the other tooth portion 11 is started. The clamp / cutter device 100 is moved by moving the entire clamp / cutter device 100 shown in FIGS. 2 to 4 by a drive mechanism (not shown) provided in the winding device.

  Next, with reference to FIGS. 5-11, the effect | action of the clamp and cutter apparatus 100 of this invention is demonstrated.

  FIG. 5 shows a state in which the slide block 106 is in the first position where it is retracted to the maximum extent with respect to the main body 101. At this time, the pressing block 132, the cutting blade 112, and the pressing plate 118 are separated from the hook 125, and the lead wire W can be introduced into the space between them and the hook 125. In this state, as described above, the clamp and cutter device 100 moves, and the lead wire W stretched between the stator core 10 and the nozzle 15 is hooked on the hook 125 and pulled.

  FIG. 6 shows a state in which the conducting wire W is hooked on the hook 125 in this way. The conducting wire W is hooked on the hooking surface 128 of the hook 125, extends through the insertion grooves 129 formed in the hooking surface 128, and passes through both side surfaces 131. Further, it is inserted into any one of the three holding grooves 130 (see FIG. 1), and is prevented from shifting laterally.

  When the cylinder rod 136 is pushed out by the operation of the air cylinder 103 in this state and the slide block 106 moves toward the hook 125, the pressing block 132 comes into contact with the conductor W as shown in FIG. The conducting wire W is sandwiched between the hook 125 and the pressing block 132. Further, the holding plate 118 rides on both side surfaces 131 of the hook 125 via the guide surfaces 122, the holding portion 123 presses the conductive wire W, and a portion passing through the both side surfaces 131 of the conductive wire W is between the both side surfaces 131. Hold it.

  When the cylinder rod 136 is further pushed and the slide block 106 moves toward the hook 125, the spring 134 is compressed and the pressing block 132 causes the lead wire W to be hooked on the hooking surface 128 of the hook 125 as shown in FIG. The cutting blade 112 and the presser plate 118 fixed to the slide block 106 further move toward the hook 125 while maintaining the state of being sandwiched between the second and the slide block 106 being close to the hook 125 to the maximum. To the position. At this time, the cutting blade 112 is inserted into the insertion groove 129, is brought into sliding contact with the inner surface of the insertion groove 129, and the conductor W across the insertion groove 129 is cut. Since the conducting wire W is cut by the cutting blade 112 from a substantially right angle direction, as shown in FIG. 13, the cutting end surface Wa is a surface substantially perpendicular to the axis. Even if the conducting wire W is cut, one end portion of the conducting wire W is clamped by the pressing block 132 and is pressed against the one side surface 131 by the one holding plate 118, and the other end of the conducting wire W is Since the portion is pressed against the other side surface 131 by the other presser plate 118, it is not immediately released.

  In this state, when the entire clamp / cutter device 100 is retracted by a drive mechanism (not shown), the end portion of the conductor W that is cut and not clamped is pressed against the side surface 131 of the hook 125 as shown in FIG. It is pulled out from between the plates 118 and released. At this time, the bending of the lead wire W is corrected by the presser plate 118, and the lead wire W has a shape extending straight. In addition, the edge part of the conducting wire W which is not cut | disconnected and clamped is an edge part connected with the coil C side (refer FIG. 12) already wound.

  The other end of the cut wire W is clamped between the hooking surface 128 of the hook 125 and the pressing block 132, and the winding introducing cylinder 16 shown in FIG. The nozzle 15 starts winding the other tooth portion 11 of the stator core 10. When the coil 11 is formed by winding the tooth portion 11, the slide block 106 is slightly retracted to the third position by the operation of the air cylinder 103 as shown in FIG. The clamp is released. At this time, the cutting blade 112 is also extracted from the insertion groove 129. Even if the clamp of the conducting wire W is released, the conducting wire W is held between the side surfaces 131 of the hooks 125 by the holding plate 118, so that the conducting wire W is not immediately released.

  Then, as shown in FIG. 11, the entire clamp and cutter device 100 is retracted by a drive mechanism (not shown), and the conductive wire W held by the presser plate 118 is extracted from between the presser plate 118 and the side surface 131. As a result, the end of the conductive wire W is in a state in which the bending is corrected by the presser plate 118 and straightened.

  As shown in FIG. 13, the end portion of the conducting wire W wound in this way extends straight, and the cut end surface Wa is a surface substantially perpendicular to the axis of the conducting wire W. For this reason, when it is going to cover the end part of the conducting wire W with the resin tube 17, it becomes easy to insert the conducting wire W in the resin tube 17, and the end part of the conducting wire W becomes a surface substantially perpendicular to the axis. Therefore, it is possible to perform the work safely without piercing the operator's hand. In addition, when connecting the end portion of the conducting wire W to a connector or the like (not shown), the end portion of the conducting wire W extends straight, so that the operation can be facilitated.

FIG. 14 shows another embodiment of the clamp and cutter device according to the present invention. It should be noted that substantially the same parts as those of the above-described embodiment are denoted by the same reference numerals and description thereof is omitted. FIG. 14 shows a state where the slide block 106 has moved to the second position.
In the clamp and cutter device 100a, the cutting blade 112 is slidably brought into contact with one side surface 131 of the hook 125 to cut the conductive wire W. As a result, the ends of the conductors that are released without being clamped are not bent originally, and thus are released in a straight state. On the other hand, the end portion of the conductive wire W clamped between the side surface 131 and the pressing block 132 is bent along the corner portion of the hook 125. And it is pressed and clamped by the other side 131 by the pressing plate 118.

  Therefore, when the next winding is finished, the slide block 106 is moved to the third position, the clamp is released, the clamp / cutter device 100a is retracted, and the end of the conductor W is pulled out. The end of the head is corrected by the presser plate 118 to be in a straight line state.

DESCRIPTION OF SYMBOLS 100 Clamp and cutter device 101 Main body 102 Flange 103 Air cylinder 104 Bolt 105 Housing part 106 Slide block 107 Opening part 108 Notch part 109 Fitting groove 110 Clamper 111 Insertion hole 112 Cutting blade 113 Mounting groove 114 Screw hole 115 Hole 116 Bolt 117 Step Portion 118 holding plate 119 hole 120 screw 121 screw hole 122 guide surface 123 holding portion 124 conductor drawing member 125 hook 126 base end portion 127 screw hole 128 hooking surface 129 insertion groove 130 holding groove 131 side surface 132 pressing block 133 support shaft 134 spring 135 Spring Pin 136 Cylinder Rod 137 Bearing Plate 138 Bearing Plate

Claims (4)

A main body movably supported by a drive device;
A lead wire drawing member in which a base end portion is fixed to the main body and is extended from the main body, and a hook for hooking the lead wire is formed on the tip portion;
A slide block supported by the main body and moving forward and backward with respect to the main body;
The slide block is held so as to be able to move in and out by a predetermined distance, and is normally urged in a protruding direction by a spring, and when the slide block moves in the direction of the hook, the conductive wire elastically moves with the hook. A clamper to clamp,
The base end side is fixed to the slide block and is supported so as to protrude from the slide block.When the slide block moves in the direction of the hook and the conductor is clamped by the clamper, A cutting blade that is in sliding contact and cuts the conductive wire hooked on the hook; and
The base end side is fixed to the slide block and is supported so as to extend from the slide block. When the slide block moves in the direction of the hook, it is clamped by at least the clamper on the side surface of the hook. A pressing plate that is pressed against a side surface through which the conducting wire is passed and sandwiches the conducting wire hooked to the hook between the side surface,
The slide block has a first position where the cutting blade, the clamper, and the presser plate are separated from the hook, and a conductive wire can be introduced between the hook and the clamper, and the conductive wire is clamped by the clamper, A second position where the conducting wire is cut by the cutting blade and the conducting wire is clamped by the holding plate, and a third position where the clamping of the conducting wire by the clamper is released but the holding of the conducting wire by the holding plate is not released Conductor clamp and cutter device, characterized in that it is at least movable between them.   An insertion groove of the cutting blade is formed on a surface to which the conductive wire of the hook is hooked, and the cutting blade is configured to slidably contact an inner wall of the insertion groove and cut the conductive wire. The lead wire clamping and cutter device according to claim 1.   3. The conductor clamp / cutter device according to claim 2, wherein a pair of the pressing plates are provided so as to come into contact with both side surfaces of the hook through which the conductor passes when the conductor is hooked on the hook.   4. The conductor clamp / cutter device according to claim 1, wherein one or a plurality of holding grooves into which the conductor is inserted when the conductor is hooked are formed on the hook. 5.

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