JP2008234925A - Manufacturing method of electric cable with terminal and terminal crimping member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of an electric cable with a terminal, wherein a work of cutting off a coupling part of a carrier and a crimping terminal in a desired length, and a work of crimping and connecting the crimping terminal to an end of the cable, are surely and stably carried out and also to provide a terminal crimping member. <P>SOLUTION: Guide faces 12c, 12c formed at an insulation crimper 12 of a crimper part 4 are pressed onto an insulation barrel Ab of the crimping terminal A fed on an anvil part 3, and the crimping terminal A as a whole is moved in a horizontal direction by horizontal component of force. After the insulation barrel Ab of the crimping terminal A is positioned by pressing it onto a terminal guide part 6b of a slide cutter 6, a coupling part Aa of the carrier B and the crimping terminal A is sheared by the slide cutter 6 to separate the crimping terminal A from the carrier B. Each barrel Ab, Ac of the crimping terminal A is caulked by each crimper 12, 13 of the crimper part 4 in cooperation with each anvil 7, 8 of the anvil part 3 to have the crimping terminal A crimped and connected to an end part of the cable. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a terminal-attached electric wire and a terminal crimping member used when, for example, a conductive metal crimp terminal is crimped and connected to an end of an electric wire.

Conventionally, as a method of crimping and connecting the above-described crimp terminal to the end portion of the electric wire, for example, as shown in FIG. Each crimp terminal A connected to B is supplied one by one on the anvil part 23 of the press part 20. The crimp terminal A supplied on the anvil part 23 is held by the terminal guide part 26 arranged at the front part (left side in the figure) of the anvil part 23 and the terminal guide part 27 arranged at the rear part (right side in the figure). After the positioning, the connecting portion Aa inserted into the guide groove 26 a of the terminal guide portion 26 is sheared by the terminal guide portion 26 to separate the crimp terminal A from the carrier B. In addition, the insulation barrel Ab and the wire barrel Ac of the crimp terminal A are crimped by the insulation crimper 24a and the wire crimper 24b of the crimper portion 24 in cooperation with the insulation anvil 23a and the wire anvil 23b of the anvil portion 23. There is a terminal crimping applicator of Patent Document 1 in which a crimp terminal A is crimped and connected to an end of an electric wire (not shown).
Japanese Patent No. 3440849

  However, in order to supply the crimp terminals A one by one without being deformed with respect to the anvil portion 23, the crimp terminals A are appropriately provided between the terminal guide portions 26 and 27 and the crimp terminals A supplied on the anvil portion 23. However, when the insulation barrel Ab of the crimp terminal A is caulked in the vertical direction by the insulation crimper 24a of the crimper portion 24, either one of the terminal guide portions 26 and 27 is provided by the gap. The position of the crimp terminal A is likely to be displaced in the direction in which it is pressed toward the wire, and the operation of crimping and connecting the crimp terminal A to the end of the electric wire cannot be performed stably. If the position of the crimp terminal A is not stable, the cut-off tab length of the connection part Aa remaining at the connection side end of the crimp terminal A varies when the connection part Aa is sheared. Further, if the connecting portion Aa, which is a cut-off tab, remains at the connecting side end portion of the crimp terminal A, for example, when the crimp terminal A is inserted into the terminal insertion portion of a connector or the like, damage or loss may occur in the terminal insertion portion. It is easy to happen and causes connection failure.

  In view of the above problems, the present invention provides an electric wire with a terminal capable of accurately and stably performing an operation of cutting a connecting portion between a carrier and a crimp terminal into a desired cut-off tab length and an operation of crimp-connecting the crimp terminal to an end of the electric wire. An object of the present invention is to provide a manufacturing method and a terminal crimping member.

  The manufacturing method of the electric wire with a terminal of the invention described in claim 1 is connected to the belt-like carrier in a state of protruding in the width direction, and the crimp terminals arranged in parallel to the length direction of the carrier. One by one on the terminal receiving member, the connecting portion connecting the carrier and the crimp terminal is sheared by a shearing means to separate the crimp terminal from the carrier, and the barrel of the crimp terminal supplied on the terminal receiving member A method of manufacturing a terminal-attached electric wire in which the crimping terminal is crimped and connected to an end portion of the electric wire by cooperating with the terminal receiving member in cooperation with the terminal receiving member, and the terminal crimping member is lowered. When crimping the barrel portion of the crimp terminal, the guide surface formed on the terminal crimp member is pressed against the barrel portion of the crimp terminal, the entire crimp terminal is horizontally moved, and pressed against a predetermined member for positioning. Or And wherein the positioning just before press devoted.

  According to this invention, the guide surface of the terminal crimping member is pressed against the barrel portion of the crimping terminal supplied on the terminal receiving member, and the entire crimping terminal is horizontally moved and pressed against a predetermined member for positioning or pressing. After positioning just before the contact, the connecting portion connecting the carrier and the crimp terminal is sheared by the shearing means to separate the crimp terminal from the carrier. And the barrel part of the crimp terminal supplied on the terminal receiving member is crimped by the terminal crimping member in cooperation with the terminal receiving member, and the crimp terminal is crimped and connected to the end of the electric wire.

  That is, since the relative position of the crimping terminal with respect to the terminal crimping member is determined, the operation of crimping and connecting the crimping terminal to the end of the electric wire can be performed stably. In addition, when the connecting portion is sheared, the work of cutting the connecting portion between the carrier and the crimp terminal into a desired cut-off tab length can be stably performed. For example, when the connection part which is a cut-off tab is unnecessary, it can also shear in the state where a connection part does not remain. Further, for example, if a bell mouth is formed on the barrel portion of the crimp terminal in a state where the barrel portion of the crimp terminal is pressed against a predetermined member and positioned, the position of the bell mouth is stabilized.

  The crimp terminal is connected in a direction projecting in the width direction or perpendicular to one side edge of the carrier formed in a band shape, for example, via a connection portion that is a cut-off tab, and is connected in the length direction of the carrier. On the other hand, they are arranged in parallel at predetermined equal intervals. Moreover, the barrel part of a crimp terminal can be comprised with an insulation barrel, a wire barrel, etc., for example. Further, the terminal receiving member can be constituted by, for example, an anvil insulation anvil, a wire anvil, or the like. Further, the terminal crimping member can be constituted by, for example, an insulation crimper or a wire crimper of the terminal crimping member. Further, the guide surface of the terminal crimping member can be constituted by, for example, a tapered surface, a smooth curved surface, or the like. Further, the shearing means can be constituted by a unit that generates a shearing force such as a slide cutter, a cut holder, an insulation crimper, or the like. Further, the predetermined member can be constituted by, for example, a terminal guide part, a pressing part, or the like.

  The method for manufacturing an electric wire with a terminal according to a second aspect of the present invention is directed to the predetermined member disposed at a position facing the barrel portion in combination with the configuration according to the first aspect. Then, it is moved horizontally in the pressing direction, and the barrel portion of the crimp terminal is pressed against a predetermined member for positioning.

  According to the present invention, the entire crimp terminal is horizontally moved in a direction in which it is pressed against a predetermined member, and the barrel portion of the crimp terminal is pressed against the predetermined member to be positioned. The excision can be performed accurately so as not to remain.

  According to a third aspect of the present invention, there is provided a method of manufacturing a terminal-attached electric wire, wherein the barrel portion of the crimp terminal is constituted by an insulation barrel and a wire barrel in addition to the configuration according to the first or second aspect. The surface is formed in a portion that is pressed against the insulation barrel of the terminal crimping member.

  According to the present invention, the guide surface of the terminal crimping member is pressed against the insulation barrel of the crimping terminal, and the entire crimping terminal is horizontally moved in the direction in which it is pressed against the predetermined member. That is, the insulation barrel of the crimp terminal is usually higher than the wire barrel of the crimp terminal to which the conductor of the electric wire is connected. More specifically, since the diameter of the covering portion covered by the conductor is larger than the conductor constituting the electric wire, the insulation barrel of the crimp terminal is inevitably high. Therefore, when positioning, the insulation barrel side is more preferable than the wire barrel side to first press the guide surface of the terminal crimping member. In order to perform the positioning on the wire barrel side of the crimping terminal, a part of the terminal crimping member protrudes by the height difference between the insulation barrel and the wire barrel. In terms of positional accuracy and adjustment in which a crimper, a wire crimper, etc. are arranged, it is somewhat more difficult than when using an insulation barrel.

  A method for manufacturing a terminal-attached electric wire according to a fourth aspect of the invention is a barrel caulking in which the guide surface is formed on the terminal crimping member in combination with the configuration according to any one of the first to third aspects. It is formed in the lower edge part of the both sides of the said terminal crimping member pressed outside the lower end side open part of a part, and pressed on the barrel part of the said crimping terminal.

  According to this invention, the guide surfaces formed on the lower edge portions on both sides of the terminal crimping member are pressed against the barrel portion of the crimping terminal, and the entire crimping terminal is horizontally moved in the direction pressed against the predetermined member. When the guide surface is formed on the barrel crimping part of the terminal crimping member where the barrel part of the crimping terminal is directly crimped, the crimping terminal is pressed against the specified member while being crimped to the end of the wire. The position of the crimp terminal becomes unstable. Considering these, it is better to form the guide surface only on the lower edge portions on both sides of the terminal crimping member than the barrel crimping portion for directly crimping the barrel portion of the crimp terminal. In addition, when the barrel portion of the crimp terminal is pressed against the barrel crimping portion of the terminal crimp member, it moves to a position where the barrel portion of the crimp terminal is pressed against a predetermined member or a position close to the position. It is good to be done. From the close state, a portion other than the guide surface (for example, a flat portion) is preferably pressed against the barrel portion of the crimp terminal, and the total pressure of the terminal crimp member is applied from above to below.

  According to a fifth aspect of the present invention, there is provided a method for manufacturing an electric wire with a terminal, wherein the guide surface of a terminal crimping member is pushed against a barrel portion of the crimp terminal together with the configuration according to any one of the first to fourth aspects. When the contact is completed, the terminal receiving member and the terminal crimping member are horizontally moved to a position where the barrel portion of the crimp terminal is pressed against the predetermined member or a position immediately before being pressed against the predetermined member. It is characterized by comprising.

  According to this invention, when the barrel portion of the crimp terminal is pressed against the predetermined member from the state where the guide surface of the terminal crimp member is pressed against the barrel portion of the crimp terminal, the force generated during the pressing is applied to the crimp terminal. For this reason, there is a greater possibility that deformation, distortion, breakage, etc. will occur in the crimp terminal. Therefore, when the guide surface of the terminal crimping member is pressed against the barrel portion of the crimp terminal, the barrel portion of the crimp terminal is horizontally moved to a position where it is pressed against a predetermined member or a position just before the pressing. Is preferred (see FIG. 8). If the entire crimp terminal is not moved in the direction in which it is pressed against the predetermined member and is not excessively separated from the predetermined member, the barrel portion of the crimp terminal is strongly pressed against the predetermined member. Or being separated from a predetermined member more than necessary.

  According to the terminal crimping member of the invention described in claim 6, the barrel portion of the crimp terminal supplied onto the terminal receiving member is crimped by the terminal crimping member in cooperation with the terminal receiving member, and the crimp terminal is connected to the electric wire. A terminal crimping member to be crimped and connected to the end of the terminal crimping member, and a portion of the terminal crimping member that is pressed against the barrel portion of the crimping terminal, wherein the entire crimping terminal is disposed at a position facing the barrel portion. A guide surface that is horizontally moved in a direction to be pressed toward the member is formed.

  According to this invention, the guide surface formed on the terminal crimping member is vertically pressed against the barrel portion of the crimping terminal supplied on the terminal receiving member, and against the pressing force in the vertical direction, Since the horizontal component force which horizontally moves in the direction where the whole crimp terminal is pressed toward a predetermined member is produced, the manufacturing method of the electric wire with a terminal according to claim 1 is realizable.

  According to this invention, the crimp terminal supplied onto the terminal receiving member is horizontally moved in a direction in which the crimp terminal is pressed against the predetermined member, and the barrel portion of the crimp terminal is pressed against the predetermined member to Since the relative position of the crimp terminal is determined, the work of cutting the connecting portion of the carrier and the crimp terminal to a desired cut-off tab length can be accurately performed. Further, when crimping the terminal, the position of the crimp terminal is not displaced in the horizontal direction, and the work of crimping and connecting the crimp terminal to the end of the electric wire can be performed stably. Further, not only the labor and work of adjusting the position of the predetermined member can be saved, but also the occurrence of terminal clogging in the predetermined member can be prevented.

  The object of the present invention is to provide a terminal receiving member that can accurately and stably perform an operation of cutting a connecting portion between a carrier and a crimp terminal into a desired cut-off tab length and an operation of crimp-connecting the crimp terminal to an end of an electric wire. This can be achieved by horizontally moving the crimp terminal supplied above in a direction to be pressed against a predetermined member, and pressing the barrel portion of the crimp terminal against the predetermined member for positioning.

  An embodiment of the present invention will be described in detail with reference to the drawings.

  The drawings show a manufacturing method of a terminal-attached electric wire and a terminal crimping member used when a crimping terminal is crimped and connected to an end of the electric wire. In FIGS. 1, 2, and 3, the manufacturing method of this electric wire with a terminal is shown. While the carrier B of the terminal band C is inserted into the guide groove 6c formed in the terminal guide portion 6b of the slide cutter 6, each crimp terminal A ... connected to the carrier B is placed on the anvil portion 3 which is a terminal receiving member. Supply one by one.

  The guide surfaces 12c and 12c formed on the insulation crimper 12 of the crimper portion 4 which is a terminal crimping member are pressed against the insulation barrel Ab of the crimp terminal A supplied on the anvil portion 3, and the entire crimp terminal A is It moves horizontally in a direction in which it is pressed toward the terminal guide portion 6b of the slide cutter 6 protruding above the holding groove 16a of the cut holder 16.

  After the insulation barrel Ab of the crimp terminal A is pressed against the terminal guide portion 6b and positioned, the connecting portion Aa inserted into the guide groove 6c of the terminal guide portion 6b is sheared by the slide cutter 6 to be crimped from the carrier B. Separate A. In addition, the insulation barrel Ab and the wire barrel Ac of the crimp terminal A are crimped by the insulation crimper 12 and the wire crimper 13 of the crimper portion 4 in cooperation with the insulation anvil 7 and the wire anvil 8 of the anvil portion 3. The metal crimp terminal A having electrical conductivity is crimped and connected to the end of an electric wire (not shown).

  The crimp terminal A is connected in a direction protruding in the width direction or orthogonal to one side edge portion of the carrier B formed in a band shape via the connection portion Aa, and is predetermined in the length direction of the carrier B. They are arranged in parallel at equal intervals (see FIG. 3). Usually, a terminal band C formed by linking a large number of crimp terminals A in a belt shape is wound in a reel shape.

  The terminal-attached electric wire manufacturing apparatus 1 used for manufacturing the terminal-attached electric wire supports the crimping terminal A connected to one side edge of the carrier B substantially horizontally on the apparatus main body 2 mounted on a press apparatus (not shown). The crimper part 4 which crimps the anvil part 3 which crimps and the crimp terminal A in cooperation with the anvil part 3 is provided up and down (refer FIG. 1, FIG. 2).

  As shown in FIG. 6, the anvil portion 3 provided on the lower side includes a slide cutter 6 that supports the vicinity of the connecting portion Aa of the crimp terminal A, and a crimp terminal A on the base 5 disposed at the lower part of the apparatus body 2. An insulation anvil 7 that supports the insulation barrel Ab, a wire anvil 8 that supports the wire barrel Ac of the crimp terminal A, and an anvil holder 9 that supports the insertion portion Ad of the crimp terminal A are connected to the terminal transport device 18 described later. They are arranged in the above order from the left end in FIG. 6 perpendicular to the transport direction.

  The crimper portion 4 provided on the upper side includes a cut-off punch 11 that shears the connecting portion Aa of the crimp terminal A in cooperation with the slide cutter 6 on the shank 10 disposed on the upper portion of the apparatus main body 2, and the insulation of the crimp terminal A. An insulation crimper 12 for crimping the installation barrel Ab in cooperation with the insulation anvil 7 of the anvil part 3; a wire crimper 13 for fastening the wire barrel Ac of the crimp terminal A in cooperation with the wire anvil 8; Spacers 14 and 15 that support the insertion portion Ad of A in a substantially horizontal manner in cooperation with the anvil holder 9 are arranged in the above order from the left end shown in FIG. ing.

  The slide cutter 6 is disposed at a position facing the insulation barrel Ab of the crimp terminal A, and is held slidably up and down with respect to a holding groove 16a of a cut holder 16 disposed on the base 5, and a cut described later. Opposite to the off punch 11, it is arranged below. Further, the terminal guide portion 6b (guide groove formed in the terminal guide portion 6b) formed on the upper portion of the slide cutter 6 by the restoring force of the coil springs 17 and 17 (see FIG. 1) compressed and loaded between the base 5 and the slide cutter 6. 6c) is always biased in a direction in which the cut holder 16 protrudes upward from the holding groove 16a.

  The terminal guide portion 6b of the slide cutter 6 is generally a height where the bottom surface of the guide groove 6c of the terminal guide portion 6b and the top surface of the insulation anvil 7 are substantially coincident (or substantially horizontal) until the terminal guide portion 6b is pushed down by the cut-off punch 11. It protrudes to the height to be measured (see FIG. 6). In addition, a receiving portion 6 a with which the abutting portion 11 a of the cut-off punch 11 is abutted is formed at one upper end portion of the slide cutter 6.

  On the guide surface of the terminal guide portion 6b against which the insulation barrel Ab of the crimp terminal A is pressed, as shown in FIG. 6, a guide groove 6c in which the carrier B of the terminal band C is guided in the transport direction, It is formed horizontally in parallel with the conveyance direction of a terminal conveyance device 18 to be described later. Further, the height H of the guide groove 6c is formed to a dimension that allows the entire thickness of the carrier B to be inserted, and the entire width of the carrier B (including the connecting portion Aa) is allowed to be inserted into the depth W of the guide groove 6c. The dimensions are In addition, the height H and the depth W of the guide groove 6c have some allowance so that the terminal band C can be smoothly transported.

  That is, the cut-off punch 11 of the crimper portion 4 is lowered vertically, the abutment portion 11a of the cut-off punch 11 is brought into contact with the receiving portion 6a of the slide cutter 6, and the slide cutter 6 is brought into the holding groove 16a of the cut holder 16. Push down vertically along. The terminal guide portion 6b of the slide cutter 6 in which the carrier B of the terminal band C is inserted in the transport direction is lowered to a height at which at least the entire guide groove 6c is immersed in the holding groove 16a of the cut holder 16 (see FIG. 9). Then, a shearing force is generated at the corners of the long side parallel to the conveying direction of the guide groove 6c and the corners of the insulation crimper 12, and the connecting part Aa inserted into the guide groove 6c pushes against the terminal guide part 6b. It is sheared along the end face of the insulation barrel Ab of the applied crimp terminal A.

  Further, shear forces are also generated at the short side corners orthogonal to the conveyance direction of the guide groove 6c and the short side corners orthogonal to the conveyance direction of the holding groove 16a of the cut holder 16, and the carry-in side of the guide groove 6c. The carrier B protruding to the carry-out side is sheared in the width direction (see FIG. 3).

  The shank 10 is held so as to be vertically slidable with respect to the upper part of the apparatus main body 2, and the cut-off punch 11, the insulation crimper 12, and the wire crimper 13 are integrally moved up and down by a pressing device (not shown).

  The cut-off punch 11 is held so as to be slidable up and down with respect to the front portion of the shank 10, and is disposed above the slide cutter 6. In addition, the restoring force of a coil spring (not shown) always urges the shank 10 to protrude downward from the lower end portion. Further, a contact portion 11 a that is in contact with the receiving portion 6 a of the slide cutter 6 protrudes from the lower end portion on one side of the cut-off punch 11.

  As shown in FIGS. 4 and 5, a concave barrel caulking portion 12 a for caulking the insulation barrel Ab of the crimp terminal A inward is formed in the central portion on the lower end side of the insulation crimper 12. ing.

  The inner wall surfaces on both sides of the barrel caulking portion 12a are formed in a planar shape gradually becoming narrower from the lower end side opening portion toward the upper end side closing portion, and the insulation barrel Ab of the crimp terminal A gradually becomes inward. It is inclined at an angle to be widened.

  Further, the inner wall surface of the lower end side open part is formed to be slightly narrower than the insulation barrel Ab of the crimp terminal A, and the barrel of the insulation barrel Ab of the crimp terminal A pressed against guide surfaces 12c and 12c described later is barreled. It corrects in the width-shifting state in which insertion is permitted along the inner wall surfaces on both sides of the caulking portion 12a. The inner wall surface of the upper end side blocking portion is formed in a smooth curved surface shape in which the insulation barrel Ab of the crimp terminal A is caulked inward.

  In addition, the skirt portions 12b and 12b formed on the lower edge portions on both sides of the insulation crimper 12 that are pressed against the insulation barrel Ab of the crimp terminal A and outside the lower end opening portion of the barrel crimping portion 12a When pressed against the upper end of the insulation barrel Ab of the crimp terminal A, guide surfaces 12c and 12c are formed that generate a horizontal component force against the vertical pressing force.

  The guide surfaces 12c and 12c are formed in a tapered surface that is formed continuously from the lower end opening portion of the barrel crimping portion 12a and is inclined at a gradually decreasing angle from the front surface side to the rear surface side of the insulation crimper 12. ing.

  As shown in FIG. 5, the guide surfaces 12 c, 12 c viewed from the bottom surface are gradually narrower from the front side (upper side of FIG. 5) to the rear side (lower side of FIG. 5) of the insulation crimper 12. It is inclined to. Further, when viewed from the side, as shown in FIG. 6, it is inclined at an angle that gradually decreases from the front side (left side in FIG. 6) to the rear side (right side in FIG. 6) of the insulation crimper 12.

  That is, when the crimper portion 4 is vertically lowered as indicated by the arrows shown in FIG. 6, the skirt portions 12 b and 12 b of the insulation crimper 12 are placed on the insulation barrel Ab of the crimp terminal A supplied onto the anvil portion 3. The guide surfaces 12c, 12c formed in the above are pressed vertically, and a horizontal component force indicated by an arrow in FIG. 7 is generated.

  The crimp terminal A supplied onto the anvil part 3 is insulated by the horizontal component force toward the terminal guide part 6b of the slide cutter 6 protruding upward from the holding groove 16a of the cut holder 16. It is horizontally moved in the direction in which the barrel Ab is pressed (to the left as indicated by the arrow in FIG. 7).

  Since the insulation barrel Ab of the crimp terminal A is pressed against the terminal guide part 6b of the slide cutter 6, the relative position of the crimp terminal A with respect to the crimper part 4 is determined. The relative position refers to the connection portion of the terminal band C when the connection portion Aa which is a cut-off tab is not left at the connection side end portion of the crimp terminal A (that is, when the cut-off tab length is substantially zero). The carrier B including Aa is inserted into the holding groove 16 a of the cut holder 16, and the connecting portion Aa inserted into the guide groove 6 c is pressed against the terminal guide portion 6 b of the slide cutter 6. It is a position where shearing is performed along the end face of the ration barrel Ab. In addition, you may comprise the guide surfaces 12c and 12c with smooth curved surfaces, such as a circular arc and an ellipse, for example.

  On the other hand, a concave barrel caulking portion 13a for caulking the wire barrel Ac of the crimp terminal A toward the inner side is also formed in the central portion on the lower end side of the wire crimper 13. In addition, since the structure of the barrel caulking part 13a is substantially the same as the barrel caulking part 12a, its detailed description is omitted.

  On the side of the anvil part 3 (left side shown in FIG. 1), a terminal transport device 18 for supplying the respective crimp terminals A ... of the terminal band C onto the anvil part 3 is arranged. The terminal conveying device 18 is connected to the operation of a pressing mechanism (not shown) that moves the crimper unit 4 up and down to connect each crimp terminal A of the terminal band C from the insulation anvil 7, the wire anvil 8, and the anvil holder 9. One by one is intermittently supplied to the anvil unit 3.

  As shown in FIG. 6, a terminal guide portion 19 for guiding the crimp terminal A conveyed by the terminal conveying device 18 onto the anvil portion 3 is disposed on the anvil holder 9 of the anvil portion 3. The terminal guide portion 19 is formed in a shape that allows the wire barrel Ac of the crimp terminal A and the valley portion of the insertion portion Ad to be locked, and the crimp terminal A that is transported by the terminal transport device 18 is on the anvil portion 3. Guide to be supplied to. Note that the terminal guide portion 19 is retracted from the anvil holder 9 at the time of crimping.

  The illustrated embodiment is configured as described above, and a method for manufacturing a terminal-attached electric wire by the terminal-attached electric wire manufacturing apparatus 1 will be described below.

  First, as shown in FIGS. 1 to 3 and FIG. 6, the terminal conveying device 18 is driven, and one crimp terminal A of the terminal strip C wound in a reel shape is provided on the anvil portion 3. The carrier B of the terminal strip C is inserted intermittently and inserted in the conveying direction into the guide groove 6c formed in the terminal guide portion 6b of the slide cutter 6 protruding above the holding groove 16a of the cut holder 16. To do.

  Next, before crimping the crimp terminal A, the wire from which the coating material at the connection side end (not shown) is removed is applied to the insulation barrel Ab of the crimp terminal A supplied onto the anvil part 3. The removed conductor portion is positioned, and the wire covering portion is set on the wire barrel Ac.

  Next, as shown in FIG. 7, the crimper part 4 is lowered by a press mechanism (not shown), and the skirt part 12 b of the insulation crimper 12 is placed on the insulation barrel Ab of the crimp terminal A supplied onto the anvil part 3. The guide surfaces 12c and 12c formed on 12b are pressed to generate a horizontal component force indicated by an arrow in FIG.

  Next, as shown in FIG. 8, the terminal guide portion 6b of the slide cutter 6 that projects the crimp terminal A supplied on the anvil portion 3 upward from the holding groove 16a of the cut holder 16 by the horizontal component force. Is moved horizontally in the direction in which it is pressed toward the left (to the left indicated by the arrow in FIG. 8).

  When the guide surfaces 12c, 12c of the insulation crimper 12 are pressed against the insulation barrel Ab of the crimp terminal A, is the position where the insulation barrel Ab of the crimp terminal A is pressed against the terminal guide 6b of the slide cutter 6? The relative position of the crimp terminal A with respect to the crimper portion 4 is determined by horizontally moving to a position immediately before being pressed. That is, when it is made not to leave the connection part Aa which is a cut-off tab in the connection side edge part of the crimp terminal A, the connection part Aa is the insulation of the crimp terminal A pressed against the terminal guide part 6b of the ride cutter 6. The position is sheared along the end surface of the barrel.

  Next, as shown in FIG. 9, the crimper portion 4 is pressed while the insulation barrel Ab of the crimp terminal A is pressed against the terminal guide portion 6 b of the slide cutter 6 protruding upward from the holding groove 16 a of the cut holder 16. The cut-off punch 11 is lowered, the contact portion 11a of the cut-off punch 11 is brought into contact with the receiving portion 6a of the slide cutter 6, and the slide cutter 6 is pushed down vertically.

  The terminal guide portion 6b in which the carrier B of the terminal band C is inserted is lowered to a height at which at least the entire guide groove 6c is immersed in the holding groove 16a of the cut holder 16 (see FIG. 9), and the longitudinal side of the guide groove 6c The connecting portion Aa inserted into the guide groove 6c is sheared along the end surface of the insulation barrel Ab of the crimp terminal A pressed against the terminal guide portion 6b by the corner portion and the corner portion of the insulation crimper 12.

  Further, the carrier B protruding to the carry-in side and the carry-out side of the guide groove 6c is sheared in the width direction by the short-side corner portion of the guide groove 6c and the short-side corner portion of the holding groove 16a of the cut holder 16 (see FIG. 3) to separate the crimp terminals A from the carrier B one by one.

  At the time of shearing, the crimper portion 4 is lowered to a crimping position by a press mechanism (not shown), and the insulation barrel Ab and the wire barrel Ac of the crimp terminal A on which an electric wire (not shown) is set are connected to the insulation anvil 7 and the anvil portion 3 and Cooperating with the wire anvil 8 and crimping with the insulation crimper 12 and the wire crimper 13 of the crimper portion 4 to crimp the crimp terminal A to the end of the wire, so that the electric wire with terminal is continuously manufactured. Can do.

  As described above, the crimp terminal A supplied on the anvil part 3 is horizontally moved in a direction to be pressed against the terminal guide part 6b of the slide cutter 6, and the insulation barrel Ab of the crimp terminal A is moved to the terminal guide part. Since the relative position of the crimp terminal A with respect to the crimper part 4 is determined by pressing against 6b, the work of cutting the connecting part Aa of the carrier B and the crimp terminal A to the desired cut-off tab length can be performed accurately. In addition, when the terminal is crimped, the position of the crimp terminal A is not displaced in the horizontal direction, and the operation of crimping and connecting the crimp terminal A to the end of the electric wire can be performed stably. Further, not only can the labor and work for adjusting the position of the terminal guide portion 6b be saved, but also the occurrence of terminal clogging in the terminal guide portion 6b can be prevented.

  Further, since the bell mouth is formed on the wire barrel Ac of the crimp terminal A in a state where the insulation barrel Ab of the crimp terminal A is pressed and positioned on the terminal guide portion 6b of the slide cutter 6, the bell mouth is formed at a predetermined position. Since the position of the bell mouth is stabilized, it is possible to prevent the occurrence of a crimping failure in which a crack or a crack occurs in the vicinity of the wire barrel Ac.

  FIG. 10 shows another example in which guide surfaces 13c and 13c are formed on the skirt portions 13b and 13b of the wire crimper 13, and the guide of the wire crimper 13 is attached to the wire barrel Ac of the crimp terminal A supplied on the anvil portion 3. The surfaces 13c and 13c are pressed vertically, and the entire crimp terminal A is horizontally moved in a direction to be pressed toward the terminal guide portion 6b of the slide cutter 6 protruding above the holding groove 16a of the cut holder 16. Since the insulation barrel Ab of the crimp terminal A is pressed against the terminal guide portion 6b of the slide cutter 6 and positioned, the operation and effect substantially the same as those of the above embodiment can be achieved. In this case, the heights of the insulation crimper 12 and the wire crimper 13 are adjusted so that the wire barrel Ac of the crimp terminal A is crimped before the insulation barrel Ab.

  11 shows another example in which guide surfaces 13c and 13c opposite to those in FIG. 10 are formed on the skirt portions 13b and 13b of the wire crimper 13, and the wire barrel of the crimp terminal A supplied on the anvil portion 3 is shown. The guide surface 13c, 13c of the wire crimper 13 is pressed against Ac in the direction opposite to that in FIG. 10, and the entire crimp terminal A protrudes upward from the holding groove 16a of the cut holder 16. The insulation barrel Ab of the crimp terminal A is horizontally moved from 6b to a direction in which the insulation barrel Ab is separated (right direction in the figure) and pressed against the pressing portion 20. In this way, after the insulation barrel Ab of the crimp terminal A is regulated at a position spaced apart from the terminal guide portion 6b of the slide cutter 6 by a predetermined distance, the connecting portion Aa protruding from the guide groove 6c of the terminal guide portion 6b is slid. Since shearing is performed by the cutter 6, it can be used when the connection portion Aa that is a cut-off tab is left at the connection side end portion of the crimp terminal A.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The shearing means of the present invention corresponds to the slide cutter 6 and the insulation crimper 12 of the embodiment,
Similarly,
The terminal receiving member corresponds to the insulation anvil 7 of the anvil part 3 and the wire anvil 8,
The terminal crimping member corresponds to the insulation crimper 12 and the wire crimper 13 of the crimper portion 4,
The predetermined member corresponds to the terminal guide portion 6b and the pressing portion 20,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

  For example, the wire crimper 13 in which the guide surfaces 13c and 13c opposite to those in FIG. 10 are formed may be used in combination with the insulation crimper 12 in which the guide surfaces 12c and 12c in the above embodiment are formed.

  The manufacturing method of the present invention is also applicable to the case where a bell mouth (not shown) is not formed on the wire barrel Ac of the crimp terminal A and the case where the connection part Aa which is a cut-off tab is left at the connection side end of the crimp terminal A. Can be used.

  The manufacturing method of the embodiment is such that the guide surfaces 12c, 12c of the insulation crimper 12 are pressed against the insulation barrel Ab of the crimp terminal A, or the guide surfaces 13c, 13c of the wire crimper 13 are pressed against the wire barrel of the crimp terminal A. For example, the guide surfaces 12c and 12c of the insulation crimper 12 and the guide surfaces 13c and 13c of the wire crimper 13 are simultaneously pressed against the insulation barrel Ab and the wire barrel Ac of the crimp terminal A. As shown, the height of the insulation crimper 12 and the wire crimper 13 may be adjusted.

The perspective view which shows the structure of the electric wire manufacturing apparatus with a terminal which manufactures the electric wire with a terminal. The front view which shows the manufacturing method of the electric wire with a terminal by the electric wire manufacturing apparatus with a terminal. The top view which shows the sheared state of the carrier and connection part by a slide cutter. The perspective view which shows the example which formed the guide surface in the skirt part of the crimper. The bottom view which shows the guide surface formed in the skirt part of the crimper. The side view which shows the state which mounted the crimp terminal on the anvil part. The side view which shows the state which pressed the guide surface against the barrel part of the crimp terminal. The side view which shows the state which pressed the barrel part of the crimp terminal against the terminal guide part. The side view which shows the shearing state of the connection part which connects a carrier and a crimp terminal. The side view which shows the other example which formed the guide surface in the wire crimper. The side view which shows the other example which formed the guide surface in the reverse direction to FIG. The side view which shows the manufacturing method of the electric wire with a terminal of a prior art example.

Explanation of symbols

A ... Crimp terminal Aa ... Connection part Ab ... Insulation barrel Ac ... Wire barrel B ... Carrier C ... Terminal belt 1 ... Electric wire manufacturing device with terminal 2 ... Device body 3 ... Anvil part 4 ... Crimper part 6 ... Slide cutter 6b ... Terminal Guide part 6c ... Guide groove 7 ... Insulation anvil 8 ... Wire anvil 11 ... Cut-off punch 12 ... Insulation crimper 13 ... Wire crimper 12a, 13a ... Barrel caulking part 12b, 13b ... Skirt part 12c, 13c ... Guide surface 16 ... Cut holder 16a ... Holding groove 20 ... Pressing part

Claims (6)

Each of the crimp terminals connected to the belt-like carrier so as to project in the width direction and arranged in parallel with respect to the length direction of the carrier is supplied onto the terminal receiving member one by one. The crimping terminal is sheared by the shearing means to separate the crimping terminal from the carrier, and the barrel part of the crimping terminal supplied onto the terminal receiving member is cooperated with the terminal receiving member by the terminal crimping member. It is a method for producing a terminal-attached electric wire which is crimped and connected to the end of the electric wire by crimping,
When crimping the barrel portion of the crimp terminal by lowering the terminal crimp member, the guide surface formed on the terminal crimp member is pressed against the barrel portion of the crimp terminal, and the entire crimp terminal is moved horizontally, A method of manufacturing a terminal-attached electric wire, wherein positioning is performed by pressing against a predetermined member or immediately before pressing. The entire crimp terminal is horizontally moved in a direction to be pressed against a predetermined member disposed at a position facing the barrel portion, and the barrel portion of the crimp terminal is pressed against the predetermined member to be positioned. The manufacturing method of the electric wire with a terminal of 1. While constituting the barrel portion of the crimp terminal with an insulation barrel and a wire barrel,
The manufacturing method of the electric wire with a terminal of Claim 1 or 2 which formed the said guide surface in the part pressed against the said insulation barrel of the said terminal crimping member. The guide surface is formed outside the lower end side opening portion of the barrel crimping portion formed on the terminal crimping member, and is formed on both lower edge portions of the terminal crimping member pressed against the barrel portion of the crimping terminal. The manufacturing method of the electric wire with a terminal as described in any one of Claims 1-3. When the guide surface of the terminal crimping member is pressed against the barrel portion of the crimp terminal, the barrel portion of the crimp terminal is horizontally moved to a position where it is pressed against a predetermined member or just before the pressing. The manufacturing method of the electric wire with a terminal as described in any one of Claims 1-4 which comprised the said terminal receiving member and the terminal crimping | compression-bonding member. A crimping terminal for crimping and connecting the crimping terminal to the end of the electric wire by crimping the barrel portion of the crimping terminal supplied on the terminal receiving member in cooperation with the terminal receiving member,
When a portion of the terminal crimping member that is pressed against the barrel portion of the crimp terminal is pressed perpendicularly to the barrel portion of the crimp terminal, a horizontal component force is generated with respect to the pressing force in the vertical direction. A terminal crimping member characterized in that a guide surface is formed.

Images