JP2007250801A - Winding terminal processing method and apparatus - Google Patents

Abstract

【Task】
It automates the winding terminal processing of the end of winding of a rectangular wire without the need for equipment such as jigs and mechanisms with complicated operations.
[Solution]
A nozzle 2 for restricting four surfaces of the rectangular wire rod is provided at the supply end of the rectangular wire rod W, and the winding end terminal of the rectangular wire rod W wound around the bobbin B by the three-dimensional movement and rotation of the nozzle 2 Wb is pulled out through the groove Bb of the bobbin B.
[Selection] Figure 1

Description

  The present invention belongs to a technical field related to a winding terminal process for drawing a winding end terminal of a rectangular wire wound around a bobbin through a groove of a bobbin.

  In a relatively large bobbin, a flange is provided at the end of the body part around which the wire is wound, and the winding start end and end end of the wire are passed through a groove (slit) formed in the flange from the body side. Winding terminal processing for drawing and connecting to a lead piece or the like is performed. Therefore, in order to automate the winding end processing, equipment such as jigs and mechanisms having complicated operations is required. In particular, for the end of winding of the wire, when the wire is cut, the tension applied to the wire is released and the winding is loosened, which requires equipment such as jigs and mechanisms that set more complicated operations. .

  Recently, in order to increase the winding density, a rectangular wire (for example, a flat wire) has been frequently used. This rectangular wire has a characteristic that it cannot be easily changed in direction by twisting like a round wire.

  For this reason, there is a demand for the development of a technique that can automate the winding terminal processing of the winding end terminal of a rectangular wire without the need for equipment such as jigs and mechanisms that have complicated operations.

Conventionally, as a winding device, for example, those described below are known.
Japanese Patent Application Laid-Open No. 2004-343951 discloses a winding device provided with a roller-shaped nozzle for forming a round wire into a square wire at the supply end of the wire. As one form of the roller-shaped nozzle, a technique of combining two pairs of rollers that are in contact with four surfaces of a rectangular wire is disclosed.

  The winding device according to Patent Document 1 is intended to perform winding while forming a round wire into a square wire, and how to make a roller-shaped nozzle function with respect to winding terminal processing. No new technology has been proposed.

  The winding device according to Patent Document 1 meets the above-described demand for automating the winding end processing of the winding end of a rectangular wire without the need for equipment such as jigs and mechanisms that have complicated operations. There is a problem that can not be.

  The present invention has been made in view of such problems, and does not require equipment such as jigs and mechanisms that have complicated operations, and can perform winding terminal processing of winding end terminals of rectangular wire rods. It is an object of the present invention to provide a winding terminal processing method that can be automated and a winding terminal processing apparatus that is suitable for carrying out this winding terminal processing method.

  In order to solve the above-described problem, the winding terminal processing method according to the present invention employs means described in claims 1 and 2.

  That is, according to the first aspect of the present invention, a nozzle that regulates four surfaces of the rectangular wire is provided at the supply end of the rectangular wire, and the rectangular wire wound around the bobbin is wound by three-dimensional movement and rotation of the nozzle. Pull the end terminal through the bobbin groove.

  In this method, the four surfaces of the rectangular wire are regulated by the nozzle, so that the rectangular wire can be accurately twisted by three-dimensional movement and rotation of the nozzle without cutting the winding end of the rectangular wire. The direction is changed, and the winding end terminal of the rectangular wire can be surely passed through the bobbin groove.

  According to a second aspect of the present invention, in the winding terminal processing method according to the first aspect, the rectangular wire is bent over the groove of the bobbin, and then the rectangular wire is pushed into the bobbin groove.

  With this means, the winding end terminal of the rectangular wire rod can be surely passed through the groove of the bobbin by performing a two-step work of bending and pushing.

 In order to solve the above-described problems, the winding terminal processing apparatus according to the present invention employs means according to claims 3 to 6 of the claims.

  That is, according to the third aspect of the present invention, a nozzle that is provided at the supply end of the rectangular wire rod and restricts the four surfaces of the rectangular wire rod, and a drive unit that is connected to the nozzle and moves the nozzle three-dimensionally and rotates relative to the bobbin And comprising.

  In this means, the nozzle is three-dimensionally moved and rotated with respect to the bobbin by the drive unit, so that the rectangular wire regulated by the nozzle is twisted and accurately oriented without cutting the winding end of the rectangular wire. The end of winding of the rectangular wire can be reliably passed through the groove of the bobbin.

  According to a fourth aspect of the present invention, in the winding terminal processing apparatus according to the third aspect, the nozzle is composed of two pairs of rollers that rotate in contact with four surfaces of a rectangular wire.

  In this means, a roller that is a rolling element that does not damage the rectangular wire is selected as the rectangular wire restricting means.

  According to a fifth aspect of the present invention, in the winding terminal processing apparatus according to the fourth aspect of the present invention, the two pairs of rollers are arranged so as to intersect with each other via a rectangular wire.

  In this means, the restricting force of the rectangular wire rod is strengthened by the crossed arrangement of the rollers, and unnecessary deflection is prevented.

  According to a sixth aspect of the present invention, in the winding terminal processing apparatus of the fifth aspect, the pair of rollers includes a narrow ring portion that comes into contact with a relatively large area surface of the rectangular wire rod, and the other one of the rollers. The pair is characterized in that it extends to the base side of the ring portion of the roller that abuts and intersects the surface of the rectangular wire rod with a relatively small area.

  With this means, the intersections of the rollers become tight, and the regulating force of the rectangular wire rod is further strengthened, so that unnecessary vibration is surely prevented.

  In the winding terminal processing method according to the present invention, the four sides of the rectangular wire are regulated by the nozzle, so that the rectangular shape is obtained by three-dimensional movement and rotation of the nozzle without cutting the winding end of the rectangular wire. The direction of the wire can be twisted to change the direction accurately, and the winding end of the rectangular wire can be passed through the bobbin groove, so there is no need for equipment such as jigs and mechanisms with complicated operations. There is an effect that it is possible to automate the winding terminal processing of the winding end terminal of the rectangular wire.

  In the winding terminal processing apparatus according to the present invention, the nozzle is three-dimensionally moved and rotated with respect to the bobbin by the driving unit, so that the rectangular terminal wire is regulated by the nozzle without cutting the winding end terminal of the rectangular wire. Since the wire rod can be twisted to change the direction accurately and the winding end of the rectangular wire can be surely passed through the groove of the bobbin, it can be carried out without impairing the effect of the above-described winding terminal processing method. Thus, there is an effect that it can be manufactured inexpensively and easily by using a three-dimensional movement and rotation mechanism widely used in the field of winding.

  The best mode for carrying out a winding terminal processing method and apparatus according to the present invention will be described below with reference to the drawings.

  In this embodiment, the bobbin B is a relatively large one provided as a coil component arranged radially around the axle of the hybrid car.

  The bobbin B is provided with a flange Ba at the end of the body portion around which the rectangular wire W is wound, and the winding start terminal Wa and the winding end terminal Wb of the rectangular wire W are pulled out from the body portion side to the flange Ba. Grooves (slits) Bb and Bc are engraved. On the outside of the flange Ba of the bobbin B, a curved lead piece R to which a winding start terminal Wa and a winding end terminal Wb of a rectangular wire W are connected is attached. The bobbin B is rotated around an axis L by a rotation mechanism (not shown) and winds a rectangular wire W.

  This form is a device configuration of the winding start terminal holder 1, the nozzle 2, and the drive unit 3.

  The winding start terminal holder 1 is attached to a work table (not shown) that mounts and rotates the bobbin B, and holds the winding start terminal Wa of the rectangular wire W by a chuck mechanism. That is, the winding start terminal holder 1 rotates integrally with the bobbin B.

  The nozzle 2 is disposed at the supply end of the rectangular wire W and supplies the rectangular wire W wound around the bobbin B. As shown in detail in FIGS. 6 and 7, the nozzle 2 is rotatably supported in an arrangement in which two pairs of rollers 22 and 23 intersect the frame 21. The pair of rollers 22 has a relatively wide area of a vertically divided roller body 22b rotatably supported by a pin 22a penetrating vertically and a rectangular wire W sandwiched and fitted between the roller bodies 22b. And a narrow ring portion 22c that comes into contact with the surface. The other pair of rollers 23 is disposed in the left-right direction, and a roller body 23b is rotatably supported by a pin 23a that is secured to the pin 22a of the roller 22 described above. The roller body 23b of the roller 23 is in contact with the surface of the rectangular wire W having a relatively small area and extends toward the base side of the ring portion 22c of the roller 22 described above. Note that two sets of these rollers 22 and 23 are arranged on the frame body 21 with a slight gap therebetween.

  The drive unit 3 includes a motor, a cylinder, and the like connected to the nozzle 2, and can move and rotate the nozzle 2 in a three-dimensional direction. The drive unit 3 can use a three-dimensional movement and rotation mechanism that is widely used in the field of winding, and can be manufactured inexpensively and easily.

  According to this device configuration, since the four surfaces of the rectangular wire W are regulated by the two pairs of rollers 22 and 23 of the nozzle 2, the supply of the rectangular wire W to the bobbin B is held straight. The Therefore, the winding of the rectangular wire W to the bobbin B does not cause unnecessary twist and the like, and a precise winding shape can be formed. In addition, since the rollers 22 and 23 of the nozzle 2 are rolling elements, even if the square wire W is a soft material such as a copper material, it is not damaged and damaged.

  In the winding process of the rectangular wire W, the nozzle 2 moves forward and backward with respect to the winding start terminal holder 1 and the bobbin B by driving the driving unit 3 to realize delivery of the winding start terminal Wa of the rectangular wire W, 2 moves up and down with respect to the rotating bobbin B to realize multilayer winding.

  When the winding process of the rectangular wire W is completed, the winding terminal process is executed. Prior to the winding terminal process, the winding end terminal Wb of the rectangular wire W is not cut.

  First, as shown in FIG. 2, the rotation of the bobbin B is stopped, and the driving unit 3 moves the nozzle 2 in the lateral direction. As a result, the winding end terminal Wb of the rectangular wire W is wired on the groove Bc of the bobbin B.

  Next, as shown in FIG. 3, the drive unit 3 rotates the nozzle 2. As a result, the winding end terminal Wb of the rectangular wire W is twisted. At this time, since the four surfaces of the rectangular wire W are restricted (to maintain a straight shape) by the rollers 22 and 23 of the nozzle 2, the winding end terminal Wb of the rectangular wire W is formed in the groove Bc of the bobbin B. It will be twisted near the top. Further, the rollers 22 and 23 of the nozzle 2 are arranged so as to intersect with each other, and the ring portion 22c of one roller 22 surely contacts the surface of a relatively wide area of the rectangular wire W so that the rollers 22 and 23 intersect. Since it is tight, the regulating force of the rectangular wire W is strengthened, and unnecessary shake is reliably prevented.

  Next, as shown in FIG. 4, the driving unit 3 moves the nozzle 2 to the vicinity of the lower side of the bobbin while maintaining the position after the rotation. As a result, the winding end terminal Wb of the rectangular wire W that has been twisted near the top of the groove Bc of the bobbin B is hooked and bent at the end of the groove Bc. At this time, a part of the winding end Wb of the rectangular wire W enters the inside of the groove Bc of the bobbin B.

  Next, as shown in FIG. 5, the drive unit 3 moves the nozzle 2 in the lateral direction on the bobbin B side. As a result, the winding end terminal Wb of the bent rectangular wire W is completely pushed into the groove Bc of the bin B and passed therethrough. At this time, an appropriate jig can be used in cooperation to assist in pushing the winding end terminal Wb of the rectangular wire W into the groove Bc of the bobbin B.

  By performing such a two-step bending and pushing operation, the winding end terminal Wb of the rectangular wire W can be surely passed through the groove Bc of the bobbin B.

  According to the above winding terminal processing, the winding terminal processing of the winding end terminal Wb of the rectangular wire W can be automated without requiring equipment such as jigs and mechanisms that set complicated operations.

  After this, cutting of the winding end terminal Wb of the rectangular wire W is executed.

  As described above, it is possible to apply to the bobbin B having other shapes by changing the driving setting of the driving unit 3 in addition to the illustrated form.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a winding terminal processing method and apparatus according to the present invention in the best mode immediately before the winding terminal processing. It is a perspective view of the first process of the winding terminal process following FIG. FIG. 3 is a perspective view of a process following FIG. 2. FIG. 4 is a perspective view of a process following FIG. 3. FIG. 5 is a perspective view of a process following FIG. 4. It is sectional drawing of the principal part of FIG. FIG. 7 is a side view of FIG. 6.

Explanation of symbols

2 Nozzle 3 Drive B B Bobbin Ba Flange Bb, Bc Groove W Square wire Wb End of winding

Claims (6)

  A nozzle that regulates the four sides of the rectangular wire is provided at the supply end of the rectangular wire, and the winding end terminal of the rectangular wire wound around the bobbin is moved to the bobbin groove by three-dimensional movement and rotation of the nozzle. Winding terminal processing method to pull through.   The winding terminal processing method according to claim 1, wherein the rectangular wire is bent by being hooked on the bobbin groove, and then the square wire is pushed into the bobbin groove.   A winding provided with a nozzle that is provided at a supply end of a rectangular wire and regulates four surfaces of the rectangular wire, and a drive unit that is connected to the nozzle and moves and rotates the nozzle with respect to a bobbin. Terminal processing device.   4. The winding terminal processing apparatus according to claim 3, wherein the nozzle is composed of two pairs of rollers that rotate in contact with four surfaces of a rectangular wire.   5. The winding terminal processing apparatus according to claim 4, wherein the two pairs of rollers are arranged so as to intersect with each other via a rectangular wire.   6. The winding end processing apparatus according to claim 5, wherein the pair of rollers includes a narrow ring portion that abuts against a surface of a relatively large area of the rectangular wire, and the other pair of rollers is a relative of the rectangular wire. A winding terminal processing device, characterized in that it extends to the base side of the ring portion of the roller that abuts and intersects the surface of a narrow area.

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