JP2016143575A - Terminal crimping device and method of manufacturing electric wire with terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology in which, when a closed barrel type terminal is separated from a chain terminal and crimped to an electric wire, the terminal can be made likely to be crimped to the electric wire while making the tip vicinity of a core wire unlikely to be injured.SOLUTION: A terminal crimping device 50 is provided in a carrier 22 formed in a belt shape so that a terminal 30 can be crimped to a core wire exposure part 14 of an electric wire 12 after separating the terminal 30 from a plurality of chain terminals protrusively provided. In a carrier separation part 80 capable of separating the terminal 30 of the chain terminal and the carrier 22, a guide recess 84 is formed which guides the core wire exposure part 14 to a crimping part 40 placed on a lower die 60. The carrier separation part 80 is provided so as to be capable of standing-by in an electric wire insertion posture in which the core wire exposure part 14 can be arranged and installed at the crimping part 40 along the guide recess 84 after the carrier 22 is separated.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a terminal crimping apparatus for crimping a terminal to an electric wire.

  For example, Patent Document 1 and Patent Document 2 are technologies in which a so-called closed barrel type terminal in which a crimping portion is formed in a cylindrical shape is separated from a chain terminal in which a plurality of the terminals are provided in parallel and is crimped to an electric wire. Is disclosed.

  The electric wire crimping device described in Patent Literature 1 is a space on the carrier side in the terminal axis direction with respect to the carrier, and is a space on the side where the conductor tip is attached to the crimping portion in the thickness direction of the carrier. The space is set to an electric wire arrangement space that allows the arrangement of the covered electric wires so that the conductor tip can be attached to the crimping portion. In addition, the carrier separation means is arranged at a non-interference position that does not interfere with the electric wire arrangement space outside the terminal fitting.

  The method for manufacturing a terminal-attached electric wire described in Patent Document 2 includes a dividing step of dividing the vicinity of the insulating coating tip to expose the vicinity of the core wire tip, and a compression for compressing at least the vicinity of the core wire tip in the cross-sectional direction of the core wire. And a connecting step of connecting the vicinity of the tip end of the core wire to the connecting portion.

JP 2014-164835 A JP 2014-164868 A

  However, in the electric wire crimping device described in Patent Document 1, since the carrier is cut along the direction orthogonal to the thickness direction of the carrier, the burr generated by the cutting of the carrier is located in the electric wire arrangement space, and the vicinity of the end of the core wire is There is a risk of injury. In addition, since the direction in which the carrier is cut and the direction in which the crimping part is crimped are different, the apparatus may be complicated when both are performed by one drive mechanism part.

  Moreover, in the manufacturing method of the electric wire with a terminal described in Patent Document 2, even when the vicinity of the core wire tip is compressed in the cross-sectional direction of the core wire, the carrier is cut after the core wire is inserted into the crimping portion. There remains a risk of interference with the carrier cutter. Moreover, when there is little quantity which can compress a coating | coated part, there exists a possibility that sufficient carrier cut space cannot be ensured.

  Therefore, the present invention has an object to provide a technique capable of making crimping easy while making the vicinity of the end of the core wire less likely to be damaged even when a closed barrel type terminal is separated from a chain terminal and crimped to an electric wire. To do.

  In order to solve the above-mentioned problem, a terminal crimping apparatus according to a first aspect is a terminal crimping method in which a terminal is separated from a chain terminal in which a plurality of terminals are projected from a band-shaped carrier and is crimped to a core wire exposed portion of an electric wire. An apparatus, wherein the crimping portion provided on the terminal is placed opposite to the lower die, the lower die capable of being placed in a posture in which the crimping portion is positioned above the carrier, and the lower die An upper mold for crimping the crimping part placed on the core wire exposed part, an insertion recess for inserting the carrier, and a movable relative to the lower mold. The carrier separating portion provided so that the carrier can be separated by moving downward with respect to the lower mold in a state where the crimping portion is placed on the carrier and the carrier is inserted into the insertion recess, and the carrier separation The carrier separating part by pressing the part A pressing portion provided movably downward with respect to the lower mold, and a driving mechanism portion provided movably with respect to the carrier separating portion and the lower mold. A guide recess is formed in the carrier separation part for guiding the core wire exposure part to the crimping part placed on the lower mold, and the carrier separation part is configured to move the core wire exposure part along the guide recess. It is provided so that it can stand by in the electric wire insertion position which can be arrange | positioned in a crimping | compression-bonding part.

  The terminal crimping apparatus according to the second aspect is the terminal crimping apparatus according to the first aspect, and is placed on the upper surface of the guide recess and the lower mold during the wire insertion posture. The inner surface of the crimping part is set so as to be flush with at least a part of the surface including the lowermost surface.

  A terminal crimping device according to a third aspect is the terminal crimping device according to the first or second aspect, wherein the drive mechanism portion moves the upper die and the pressing portion against the lower die and the carrier separating portion. The movement from the wire insertion posture to the next wire insertion posture is performed in one action of the drive mechanism portion, and during the period from the end of one action to the start of the next one action, the drive mechanism portion It is set to wait for insertion.

  A terminal crimping apparatus according to a fourth aspect is the terminal crimping apparatus according to any one of the first to third aspects, wherein the pressing part is pressing the carrier separating part. A guide hole through which the core wire exposed portion can be inserted is formed between the guide separating portion and the carrier separating portion, and the guide concave portion forms part of the guide hole.

  A terminal crimping apparatus according to a fifth aspect is the terminal crimping apparatus according to any one of the first to fourth aspects, and is located on the side where the electric wire is inserted on the inner peripheral surface of the guide recess. The surface is formed in a tapered shape.

  According to a sixth aspect of the present invention, there is provided a method of manufacturing a terminal-attached electric wire comprising: a terminal formed by separating a terminal from a chain terminal in which a plurality of terminals project from a band-shaped carrier; In the manufacturing method, (a) the crimping portion of the terminal is placed on the lower mold, and the carrier is inserted into the insertion recess of the carrier separation portion, and is disposed to face the carrier separation portion. A step of separating the carrier by moving the carrier separation portion downward with respect to the lower die by a pressing portion; and (b) after the step (a), the carrier separation portion is moved relative to the lower die. The guide wire provided in the carrier separating portion in a state of being moved downward and disposing the core wire exposed portion on the inner peripheral surface of the crimping portion placed on the lower mold, (C) After the step (b), the lower mold The oppositely disposed upper mold is moved toward the lower mold for, and a step of crimping the crimping portion into the exposed core portion.

  The manufacturing method of the electric wire with a terminal which concerns on a 7th aspect is a manufacturing method of the electric wire with a terminal which concerns on a 6th aspect, Comprising: In the case of the said process (b), the said carrier separation part is with respect to the said lower mold | type. In a state of moving downward, the upper surface of the guide recess and the inner surface of the crimping part placed on the lower mold are flush with at least a part of the surface including the lowest surface. It is set to become.

  The manufacturing method of the electric wire with a terminal which concerns on an 8th aspect is a manufacturing method of the electric wire with a terminal which concerns on the 6th or 7th aspect, Comprising: The said terminal is crimped | bonded after the said process (c). And discharging the terminal-attached electric wire from above the lower mold, feeding the chain terminal, and disposing the next terminal on the lower mold, and the step (b) by one action of the drive mechanism section. The step (c), the step (d), and the step (a) are performed in this order, and the drive mechanism unit is provided in a standby state between the step (a) and the step (b). It has been.

  The manufacturing method of the electric wire with a terminal which concerns on a 9th aspect is a manufacturing method of the electric wire with a terminal which concerns on any one aspect of the 6th-8th, Comprising: The said press part is pressing the said carrier separation part. In the state, a guide hole through which the core wire exposed portion can be inserted is formed between the pressing portion and the carrier separating portion, and the guide concave portion forms a part of the guide hole, and the step (b) (B1) includes a step of inserting the core wire exposed portion into the guide hole so that the core wire exposed portion that has passed through the guide hole is disposed in the crimping portion.

  According to the terminal crimping apparatus according to the first to fifth aspects, the carrier separating portion is formed so as to be movable relative to the lower mold while being formed with the insertion concave portion through which the carrier is inserted, and the crimping portion is provided on the lower mold. Since the carrier is separable by moving downward with respect to the lower mold in a state where the carrier is inserted into the insertion recess, the burr generated in the portion of the terminal where the carrier is separated is an electric wire. Since it faces to the opposite side, the part is hard to damage the vicinity of the tip of the core wire. In addition, a guide recess is formed in the carrier separating portion that guides the core wire exposed portion to the crimping portion placed on the lower mold, and the carrier separating portion can be disposed in the crimping portion along the guide recess. Since it is provided so that it can stand by in the electric wire insertion posture, it is easy to dispose the core wire exposed portion in the crimping portion. Accordingly, even when the closed barrel type terminal is separated from the chain terminal and is crimped to the electric wire, it is possible to facilitate the crimping while making the vicinity of the end of the core wire more difficult to be damaged.

  In particular, according to the terminal crimping apparatus according to the second aspect, when the electric wire is inserted, the upper surface of the guide recess and the inner surface of the crimping portion placed on the lower mold are positioned on the lowermost side. Since it is set to be flush with at least a part of the surfaces including the core wire exposed portion, the core wire exposed portion is easily disposed by the crimping portion.

  In particular, according to the terminal crimping apparatus according to the third aspect, the drive mechanism unit reciprocates the upper mold and the pressing unit with respect to the lower mold and the carrier separation unit, and the drive mechanism from the wire insertion posture to the next wire insertion posture. Since the drive mechanism is set to wait for the insertion of the electric wire between the end of one action and the start of the next one action, the wire is crimped after the carrier separation. Even in the case of disposing, the tact-up associated with one press can be reduced.

  In particular, according to the terminal crimping apparatus according to the fourth aspect, a guide hole is formed between the pressing portion and the carrier separation portion so that the core wire exposed portion can be inserted in a state where the pressing portion presses the carrier separation portion. And since the guide recessed part has comprised a part of guide hole, a core wire exposure part can be easily arrange | positioned in a crimping | compression-bonding part by inserting a core wire exposure part in a guide hole.

  In particular, according to the terminal crimping apparatus according to the fifth aspect, since the surface located on the side where the electric wire is inserted is formed in a tapered shape among the inner peripheral surface of the guide concave portion, the electric wire is easily guided to the guide concave portion. Become.

  According to the method for manufacturing a terminal-attached electric wire according to the sixth to ninth aspects, the carrier is inserted in the insertion recess of the carrier separation portion while the crimp portion of the terminal is placed on the lower mold. Since the step (a) of separating the carrier by moving the separating portion downward with respect to the lower mold is provided, the portion of the terminal where the carrier is separated is hardly damaged near the tip of the core wire. In addition, after the step (a), the carrier separation portion is moved downward with respect to the lower die, and is guided through the guide recess provided in the carrier separation portion, so that the crimping portion placed on the lower die is Since the step (b) of disposing the core wire exposed portion on the inner peripheral surface is provided, the core wire exposed portion is easily disposed in the crimping portion. Accordingly, even when the closed barrel type terminal is separated from the chain terminal and is crimped to the electric wire, it is possible to facilitate the crimping while making the vicinity of the end of the core wire more difficult to be damaged.

  In particular, according to the method for manufacturing a terminal-attached electric wire according to the seventh aspect, in the step (b), the carrier separation portion moves downward with respect to the lower mold, Since the inner surface of the crimping part placed on the mold is set to be flush with at least a part of the surface including the lowest surface, the core wire exposed part is arranged in the crimping part. It's easy to do.

  In particular, according to the method for manufacturing a terminal-attached electric wire according to the eighth aspect, after step (c), the terminal-attached electric wire with the terminal crimped is discharged from the lower mold, and the chain terminal is fed to The step (d) for arranging the next terminal is further provided, and the step (b), the step (c), the step (d), and the step (a) are performed in this order by one action of the drive mechanism unit. Since the drive mechanism unit is provided so as to be able to stand by between the step (a) and the step (b), it is possible to reduce tact-up related to the crimping of the electric wire.

  In particular, according to the method for manufacturing the terminal-attached electric wire according to the ninth aspect, the guide capable of inserting the core wire exposed portion between the pressing portion and the carrier separating portion while the pressing portion presses the carrier separating portion. A hole is formed, and the guide concave portion forms a part of the guide hole. In the step (b), the core wire exposed portion passing through the guide hole is arranged in the crimping portion by inserting the core wire exposed portion into the guide hole. Since the step (b1) to be provided is included, it is easy to dispose the core wire exposed portion in the crimping portion.

It is a perspective view which shows an electric wire with a terminal. It is a perspective view which shows a chain terminal. It is a perspective view which shows the terminal crimping apparatus which concerns on embodiment. It is a side view which shows the terminal crimping apparatus which concerns on embodiment. It is explanatory drawing which shows 1 process of the manufacturing method of an electric wire with a terminal. It is explanatory drawing which shows 1 process of the manufacturing method of an electric wire with a terminal. It is explanatory drawing which shows 1 process of the manufacturing method of an electric wire with a terminal. It is explanatory drawing which shows 1 process of the manufacturing method of an electric wire with a terminal. It is explanatory drawing which shows 1 process of the manufacturing method of an electric wire with a terminal. It is explanatory drawing which shows 1 process of the manufacturing method of an electric wire with a terminal. It is explanatory drawing which shows 1 process of the manufacturing method of an electric wire with a terminal. It is explanatory drawing which shows 1 cycle of the manufacturing method of an electric wire with a terminal.

  Hereinafter, the terminal crimping apparatus according to the embodiment will be described. Here, for convenience of explanation, the terminal crimping apparatus will be explained after the electric wire with terminal 10 and the chain terminal 20 are explained first.

<Wire with terminal>
First, the terminal-equipped electric wire 10 manufactured by crimping the terminal 30 to the electric wire 12 by the terminal crimping device 50 will be described. FIG. 1 is a perspective view showing a terminal-attached electric wire 10.

  The terminal-attached electric wire 10 includes an electric wire 12 and a terminal 30 that is crimped to the electric wire 12. As described above, the terminal 30 is crimped to the electric wire 12 by the terminal crimping device 50.

  The electric wire 12 has a configuration in which a coating portion 16 is formed by extrusion coating of resin on the outer periphery of the core wire. A covering portion 16 is peeled off at the end of the electric wire 12 to form a core wire exposed portion 14 where the core wire is exposed. And the terminal 30 is crimped | bonded to the part containing the said core wire exposed part 14 of the edge part of the electric wire 12. FIG. Here, the terminal 30 is also crimped to a part of the covering portion 16 on the rear end side of the core wire exposed portion 14.

  The terminal 30 includes a connection portion 32 and a crimping portion 40. Here, a description will be given assuming that a so-called closed barrel type terminal in which the crimping portion 40 is formed in a cylindrical shape is used as the terminal 30. However, the terminal 30 is not limited to a closed barrel type terminal. As the terminal, a so-called open barrel type terminal having a pair of crimping pieces standing on the bottom may be used. However, a closed barrel type terminal is used as the terminal 30, and the crimping part 40 covers the covering part 16, so that water splash on the core wire exposed part 14 can be suppressed.

  The connection part 32 is a part connected to the other conductive part. Here, the connection part 32 is formed in the terminal shape connected to a counterpart terminal. More specifically, the connection portion 32 is formed in a cylindrical shape (here, a rectangular tube shape), and a spring contact portion 33 is formed therein. That is, the connection part 32 is formed in a so-called female terminal shape. Then, the pin-shaped or tab-shaped connecting portion of the counterpart terminal is inserted and connected into the connecting portion 32, so that the spring contact portion 33 contacts the connecting portion of the counterpart terminal, so that the terminal 30 and the counterpart terminal are electrically connected. Connected. The connection part may be formed in a pin-like or tab-like shape, so-called male terminal shape. In addition, the connecting portion does not have to be in a shape that can be inserted and connected to the mating terminal, for example, a shape that is formed in an annular shape and is connected to the conductive portion on the mating side by a screwing structure (so-called round terminal shape) It may be.

  The crimping portion 40 is a portion that is crimped to a portion of the electric wire 12 including the core wire exposed portion 14 and is electrically connected to the electric wire 12. Here, the crimping part 40 is formed so as to be continuous with one end of the connection part 32. Here, as described above, the crimping portion 40 is formed in a cylindrical shape (here, a cylindrical shape).

  More specifically, here, the crimping part 40 includes a cylindrical part 42 into which an end of the electric wire 12 can be inserted, and a connecting part 48 that connects the cylindrical part 42 and the connection part 32.

  A crushed crushing portion 44 is formed at the end of the crimping portion 40 on the connection portion 32 side so as to close the end of the cylindrical portion 42 on the connection portion 32 side. The crushing portion 44 is formed with a welded portion 46 that is bent at least partially and that faces from one side portion of the crushing portion 44 to the other side portion. Accordingly, the cylindrical portion 42 is formed in a shape that is open on the opposite side of the connecting portion 32 but sealed in other portions. At this time, the inner diameter dimension of the opening of the cylindrical portion 42 is set to be the same as or larger than the outer dimension of the electric wire 12 (here, slightly larger). Accordingly, the covering portion 16 of the electric wire 12 can also be inserted into the cylindrical portion 42.

  Here, the cylindrical part 42 is formed by rounding a part obtained by punching the conductive plate into a square shape and joining the both side edges by laser welding, brazing, soldering, or the like. Accordingly, a joining portion 43 extending along the axial direction is formed on a part of the outer periphery of the cylindrical portion 42.

  Here, the cylindrical portion 42 is formed in a cylindrical shape. In addition, the cylindrical portion 42 may be an elliptical cylindrical shape, a polygonal cylindrical shape, or the like. If the cylindrical part 42 is a cylindrical shape, there exists an advantage that it is easy to make it close to the whole outer periphery of the coating | coated part 16 of the electric wire 12.

  Here, the terminal 30 is crimped to the electric wire 12 after being separated from the chain terminal 20 in which the plurality of terminals 30 are continuous by the terminal crimping device 50.

<Chain terminal 20>
Next, the chain terminal 20 in which a plurality of terminals 30 to be crimped to the electric wire 12 by the terminal crimping device 50 is described. FIG. 2 is a perspective view showing the chain terminal 20.

  The chain terminal 20 includes a plurality of terminals 30 and a carrier 22 in which one ends of the plurality of terminals 30 are connected.

  The carrier 22 includes a carrier main body portion 24 and a connecting portion 26. Here, the carrier main body 24 is formed in a long band shape. A plurality of connecting portions 26 are provided in parallel so as to protrude from the end in the width direction of the carrier body 24 to the outside in the width direction. And the terminal 30 is provided in the front-end | tip of each connection part 26, respectively, and the several terminal 30 is connected with the carrier 22 in parallel. Here, the end edge of the terminal 30 in the longitudinal direction on the crimping part 40 side, that is, the inner peripheral edge of the opening of the cylindrical part 42 is formed so as to be continuous with the connecting part 26 of the carrier 22. Further, here, the lower side of the crimping part 40 is connected to the connecting part 26 when the side of the crimping part 40 where the crushing part 44 is crushed is the upper side. Here, a plurality of feed recesses 28 are formed in the carrier body 24.

  The feed recess 28 is formed in a form that is recessed from one main surface to the other main surface of the carrier main body 24 (here, a through-hole shape penetrating from one main surface to the other main surface of the carrier main body 24). Here, the plurality of feed recesses 28 are formed at the same pitch as the pitch of the plurality of terminals 30 along the longitudinal direction of the carrier body 24. More specifically, here, feed recesses 28 are respectively formed in portions of the carrier main body 24 where the connecting portions 26 protrude along the longitudinal direction of the carrier main body 24.

  In a state where the feeding claw of the terminal feeding device is hooked on the feeding recess 28, the portion of the feeding claw that is hooked on the terminal 30 is moved in the longitudinal direction of the carrier body 24 by one of the terminals 30. Can be sent one by one. Thereby, the next terminal 30 connected to the chain terminal 20 can be disposed on the lower mold 60. By repeating this, the terminal 30 connected to the chain terminal 20 can be continuously arranged in the lower mold 60.

<Terminal crimping device 50>
Next, the terminal crimping apparatus 50 according to the embodiment will be described. FIG. 3 is a perspective view showing the terminal crimping apparatus 50 according to the embodiment. FIG. 4 is a side view showing the terminal crimping apparatus 50 according to the embodiment.

  First, after describing the overall configuration of the terminal crimping apparatus 50 according to the embodiment, each part of the terminal crimping apparatus 50 will be described in detail.

  The terminal crimping device 50 includes a lower mold 60 and an upper mold 70 disposed to face the lower mold 60. In addition, the terminal crimping device 50 includes a carrier separating unit 80 and a pressing unit 90 disposed to face the carrier separating unit 80. In addition, the terminal crimping device 50 includes a drive mechanism unit 110 that can move the carrier separation unit 80 downward relative to the lower mold 60.

  Here, the lower mold 60 and the carrier separating unit 80 are attached to the base 52, the upper mold 70 and the pressing unit 90 are attached to the ram member 54, and the drive mechanism unit 110 drives the ram member 54 to move up and down. It is provided as possible.

  The base 52 is formed in a plate shape, and is fixed on a device base (not shown) in a substantially horizontal posture.

  The ram member 54 is formed in a substantially rectangular parallelepiped shape that can be disposed between a pair of guide frame pieces (not shown). In particular, the width of the ram member 54 is narrower than the distance between the pair of guide frame pieces (here, Is slightly narrow). The ram member 54 is guided between the pair of guide frame pieces in a fixed posture so as to be movable up and down between the raised position and the lowered position.

  Above the ram member 54, a drive mechanism 110 constituted by an actuator such as an air cylinder is disposed. The ram member 54 receives the driving force of the driving mechanism unit 110 via the rod portion 112 and is driven to move up and down. The drive mechanism 110 moves them relatively close to each other so that the crimping portion 40 is crimped between the upper die 70 and the lower die 60 (here, the upper die 70 is lowered toward the lower die 60). ) Is configured as follows.

  An upper die 70 and a pressing portion 90 are attached to the lower portion of the ram member 54. Further, a lower die 60 and a carrier separating portion 80 are attached to the upper surface of the base 52 and below the ram member 54 (that is, the lower position facing the upper die 70 and the pressing portion 90). As the ram member 54 moves up and down, the upper die 70 and the pressing portion 90 move toward and away from the lower die 60 and the carrier separating portion 80 (that is, reciprocate in the approaching direction and the moving away direction). It has become.

  Then, the upper die 70 approaches the lower die 60 in a state where the crimping portion 40 is disposed on the lower die 60 and the core wire exposed portion 14 of the electric wire 12 is disposed on the crimping portion 40. Then, when the crimping portion 40 is pressed between the upper die 70 and the lower die 60, the crimping portion 40 is crushed and crimped to the electric wire 12.

  The carrier separation part 80 is formed so that the carrier 22 can be inserted. The pressing part 90 is formed so as to press the carrier separating part 80 and to move the carrier separating part 80 downward relative to the lower mold 60. Then, with the terminal 30 connected to the carrier 22 disposed on the lower mold 60 and the carrier 22 being inserted into the carrier separating section 80, the pressing section 90 moves the carrier separating section 80 downward with respect to the lower mold 60. By moving, the terminal 30 disposed on the lower mold 60 is separated from the carrier 22.

  The upper mold 70 and the pressing part 90 have been described as being configured to move closer to and away from the lower mold 60 and the carrier separating part 80. However, the lower mold 60 is not necessarily required even if both of them move. And the structure which the carrier separation part 80 moves toward and away from the upper mold | type 70 and the press part 90 may be sufficient. In short, it is sufficient if they are relatively close to and away from each other.

  The drive mechanism unit 110 may include two drive units that drive the upper mold 70 and the pressing unit 90 up and down separately.

  Next, each part of the terminal crimping device 50 will be described in detail.

<Lower mold 60>
The lower mold 60 is formed so that the crimping portion 40 provided on the terminal 30 can be placed in a posture in which the crimping portion 40 is positioned above the carrier 22.

  Specifically, the lower mold 60 is fixed to the base 52 so as to protrude upward. A lower mold surface 62 on which the crimping part 40 can be placed is formed on the upper surface of the lower mold 60. The lower mold surface is formed in, for example, a cross-sectional arc-shaped groove shape. The lower mold surface 62 is configured to mount and support the crimping portion 40 (specifically, the crimping portion 40 with the end of the electric wire 12 including the core wire exposed portion 14 disposed therein). . The lower mold 60 is also called an anvil.

<Upper mold 70>
The upper mold 70 is disposed to face the lower mold 60. The upper die 70 is provided so that the crimping portion 40 placed on the lower die 60 can be crimped to the core wire exposed portion 14. The upper mold 70 is also called a crimper.

  Specifically, here, since the crimping portion 40 is crimped to the core wire exposed portion 14 and the covering portion 16 at the rear end of the core wire exposed portion 14 of the electric wire 12, the upper die 70 is the core wire upper die 72. And an upper die 74 for coating.

  The core wire upper die 72 is formed in an elongated plate shape, and a core wire upper die surface 73 extending in a notch groove shape from the distal end portion toward the base end portion is formed. The core wire upper mold surface 73 faces the lower mold surface 62 of the lower mold 60. Both side surfaces on the distal end side of the core wire upper mold surface 73 are formed in a shape that sequentially expands toward the distal end side. The innermost (upper) portion of the core wire upper mold surface 73 is formed in, for example, an arcuate circumferential surface that protrudes downward, or a flat surface that is orthogonal to the moving direction of the core wire upper mold 72.

  Here, in the longitudinal direction of the core wire upper mold surface 73 (in the extending direction of the groove and in the longitudinal direction of the core wire exposed portion 14 to be disposed between the lower mold 60 and the core wire upper mold 72) The length along the direction) is shorter than the length along the longitudinal direction of the crimping portion 40 to be disposed between the lower die 60 and the core wire upper die 72.

  The core wire upper mold surface 73 is located at the end of the core wire upper mold surface 73 in the longitudinal direction and at the end on the covering upper mold 74 side at the innermost portion of the groove of the core wire upper mold surface 73. An inclined surface region that inclines in a direction toward the base end as it goes toward the end in the longitudinal direction may be formed. By forming the inclined surface region at the end of the core wire upper mold surface 73, the crimped portion 40 is deformed into a gently bulging shape from the portion crimped to the core wire exposed portion 14 to the portion crimped to the coating. The Rukoto. In the portion excluding the inclined surface region, the core wire upper mold surface 73 has substantially the same cross-sectional shape along the longitudinal direction.

  The core wire upper die 72 is disposed by the drive mechanism 110 so as to be movable toward and away from the lower die 60 above the lower die 60 (that is, reciprocally movable in the approaching direction and away from the lower die 60). ing. By moving the upper core wire mold 72 toward the lower mold 60 in a state where the crimping portion 40 is disposed on the lower mold surface 62 of the lower mold 60, the lower mold surface 62 and the core cable for the lower mold 60 are moved. The crimp portion 40 (specifically, the portion of the crimp portion 40 on the connection portion 32 side where the core wire exposed portion 14 is positioned) is sandwiched between the upper die surface 73 for the core wire of the upper die 72. With the core wire upper mold 72 closest to the lower mold 60, the crimping part 40 is sandwiched between the lower mold surface 62 and the core wire upper mold surface 73 and is crushed. That is, the crimping portion 40 is deformed so as to be in close contact with the core wire exposed portion 14. As a result, the crimping portion 40 is crimped to the core wire exposed portion 14.

  The covering upper die 74 is disposed at a position adjacent to the core wire upper die 72. Here, the covering upper die 74 is disposed so that the opening side of the tubular portion 42 of the crimping portion 40 can be crimped to the electric wire 12.

  The covering upper die 74 is formed in an elongated plate shape, and a covering upper die surface 75 extending in a notch groove shape from the distal end portion toward the base end portion is formed. The upper mold surface 75 for coating faces the lower mold surface 62 of the lower mold 60. Both side surfaces on the distal end side of the upper mold surface 75 for covering are formed in a shape that sequentially expands toward the distal end side. The innermost (upper) portion of the upper mold surface 75 for covering is formed in, for example, an arcuate circumferential surface that is convex upward. Further, the innermost (upper) portion of the upper mold surface 75 for covering is provided at a position farther from the lower mold 60 than the innermost (upper) portion of the upper mold surface 73 for core wire.

  The upper die 74 for covering is provided so as to be able to move closer to and away from the lower die 60 in synchronization with the upper die 72 for core wire by the drive mechanism 110. When the tip end side of the crimping portion 40 is crimped to the core wire exposed portion 14 between the lower die 60 and the core wire upper die 72, the covering upper die 74 also moves closer to the lower die 60, and the crimping portion 40 is moved. The crimp part 40 is deformed to be crimped to the covering part 16 of the electric wire 12.

<Carrier separation unit 80>
The carrier separation part 80 is formed with an insertion recess 82 through which the carrier 22 is inserted. The carrier separation unit 80 is provided so as to be movable relative to the lower mold 60. The carrier separating unit 80 is configured such that the carrier separating unit 80 moves downward with respect to the lower die 60 in a state where the crimping portion 40 is placed on the lower die 60 and the carrier 22 is inserted into the insertion recess 82. The carrier 22 is provided so as to be separable.

  The carrier separating portion 80 is a position corresponding to the carrier 22, and the lower position of the covering portion 16 which is the electric wire 12 disposed on the terminal 30 and extends outward from the crimping portion 40 with respect to the electric wire 12. It is arranged. A pressing portion 90 is disposed above the carrier separation portion 80. A stopper 56 is provided below the carrier separation unit 80.

  More specifically, the carrier separating portion 80 is formed in a solid block shape, and an insertion recess 82 through which the carrier 22 is inserted is formed in a portion adjacent to the lower mold 60 inside thereof. . More specifically, the carrier separation portion 80 is provided with a facing surface facing the lower mold 60 side. The insertion recess 82 is formed such that a part of the facing surface is recessed toward the surface on the opposite side of the facing surface. The insertion recess 82 is formed in a groove shape that is recessed from one end in the width direction to the other end on the opposing surface.

  The insertion recess 82 is formed along the track of the carrier 22 of the chain terminal 20 fed by the terminal feeding device. The width dimension of the insertion recess 82 (the dimension of the insertion recess 82 in the moving direction of the carrier separation portion 80) is set to be equal to or larger than the thickness dimension of the carrier 22 (here, slightly larger). The carrier 22 is introduced into the insertion recess 82 by the terminal feeding device.

  Then, the carrier separating portion 80 moves the terminal 30 from the carrier 22 (more specifically, between the upper edge portion 82e of the opening portion of the insertion recess 82 and the edge portion 64e of the lower mold surface 62 on the pressing portion 90 side. In order to pass the connecting portion 26) of the carrier 22 in such a manner that it can be sheared, it is disposed so as to be movable up and down at a position adjacent to the lower mold 60. Here, the carrier separation part 80 is made to be movable up and down by being attached to the base 52 via an elastic member 86 such as a spring.

  In addition, a guide recess 84 that guides the core wire exposed portion 14 to the crimping portion 40 placed on the lower mold 60 is formed in the carrier separating portion 80.

  Specifically, the guide recess 84 is formed on the upper surface of the carrier separation unit 80. The guide recess 84 has a substantially semicircular cross section. And when the electric wire 12 is inserted in the cylindrical part 42 of the crimping | compression-bonding part 40, the electric wire 12 goes along the said guide recessed part 84, and is mounted in the cylindrical part 42. FIG.

  Furthermore, the surface located in the side in which the electric wire 12 is inserted among the internal peripheral surfaces of the guide recessed part 84 here is formed in the taper shape. Specifically, the guide recess 84 is formed such that the diameter of the semicircle gradually increases toward the end on the side where the electric wire 12 is inserted. That is, the guide recess 84 is configured by a portion formed in a substantially semi-cylindrical shape and a portion formed in a substantially semi-conical truncated cone shape, and is provided so that the larger diameter side of the truncated cone faces the outside. Yes.

  The carrier separating portion 80 is provided so as to be able to wait in an electric wire insertion posture in which the core wire exposed portion 14 can be disposed in the crimping portion 40 along the guide recess 84 after the carrier 22 is separated. Furthermore, the time for inserting the electric wire 12 is ensured before the crimping is started in a state where the carrier separation unit 80 is waiting in the electric wire insertion posture.

  Specifically, here, the stopper 56 is provided on the base 52, and the carrier separation unit 80 comes into contact with the stopper 56 in the electric wire insertion posture, so that the carrier separation unit 80 can stand by in the electric wire insertion posture.

  More specifically, here, when the electric wire is inserted, the upper surface of the guide recess 84 (the surface that faces the electric wire 12 when the electric wire 12 is inserted) and the crimping portion placed on the lower mold 60. The inner surface of 40 (the surface that faces the electric wire 12 when the electric wire 12 is inserted) is set to be flush with at least a part of the surface including the lowermost surface. That is, the position where the upper surface of the guide recess 84 is positioned above the lower mold surface 62 of the lower mold 60 by the thickness dimension of the crimping section 40 is the wire insertion posture here. And the position of the front-end | tip of the stopper 56 is set so that it may contact | abut to the stopper 56, when the carrier separation part 80 is pushed down to the said position with respect to the lower mold | type 60. FIG. Then, the carrier separation part 80 comes into contact with the stopper 56, so that the carrier separation part 80 cannot be pushed down any more.

  In this case, the drive mechanism 110 is provided in a standby state in a state where the carrier separating unit 80 is in the wire insertion posture. Thereby, the time for electric wire 12 insertion can be ensured.

  However, it is not essential to provide the stopper 56 as a configuration in which the carrier separation unit 80 is provided so as to be able to stand by in an electric wire insertion posture. Further, even when the carrier separation unit 80 is provided so as to be able to stand by in the wire insertion posture, the drive mechanism unit 110 is provided so as to wait while the carrier separation unit 80 is waiting in the wire insertion posture. Is not required. However, the insertion time for inserting the wire is set between the time when the carrier separating portion 80 first takes the wire insertion posture and the time when the upper mold 70 comes into contact with the crimping portion 40 and the crimping starts. It is preferable.

  As a configuration in which the carrier separation unit 80 is provided so as to be able to stand by in an electric wire insertion posture, for example, even if the stopper 56 is not provided, the drive mechanism unit 110 waits in a state where the carrier separation unit 80 assumes the electric wire insertion posture It may be provided to do. Further, for example, a cam mechanism may be provided so that the drive mechanism 110 does not temporarily push down the ram member 54 in a state in which the carrier separation unit 80 takes the electric wire insertion posture.

  In addition, as a configuration for securing the insertion time for inserting the electric wire, for example, a position where the upper mold 70 is separated from the lower mold 60 to the extent that the insertion time can be secured with respect to the lower mold 60 after the stopper 56 is provided. The structure provided in can be considered. Further, for example, as described above, a configuration in which a cam mechanism is provided so that the drive mechanism unit 110 does not push down the ram member 54 when the carrier separating unit 80 takes an electric wire insertion posture is conceivable.

  Here, the pressed portion 85 of the carrier separating portion 80 that is pressed by the pressing protrusion 92 of the pressing portion 90 protrudes above the portion of the carrier separating portion 80 that is pressed by the guide protruding portion 94. However, this is not essential. The shape of the pressed portion may be determined as appropriate in consideration of the pressing protrusion 92 and the guide protrusion 94.

<Pressing part 90>
The pressing part 90 is provided so as to press the carrier separating part 80 and move the carrier separating part 80 downward with respect to the lower mold 60.

  The pressing portion 90 has a pressing protrusion 92 that protrudes downward through the side of the electric wire 12. This presser protrusion 92 abuts against the pressed portion 85 located on the side of the upper surface of the carrier separating portion 80 and where the guide recess 84 is provided before the crimping portion 40 is crimped. The separation part 80 is formed to have a projecting dimension capable of descending. Further, here, the presser protrusion 92 is set to a protruding dimension that allows the carrier separating portion 80 to abut against the stopper 56 before the crimping portion 40 is crimped.

  Further, here, the pressing portion 90 is connected to the ram member 54 via an elastic member 98 such as a spring. Thereby, the ram member 54 can be moved downward even when the carrier separating portion 80 is pressed by the pressing portion 90 and abuts against the stopper 56 and cannot move downward.

  A guide hole 100 through which the core wire exposed portion 14 can be inserted is formed between the pressing portion 90 and the carrier separation portion 80 in a state where the pressing portion 90 is pressing the carrier separation portion 80. The guide recess 96 forms part of the guide hole 100.

  Specifically, here, the pressing portion 90 has a guide protrusion 94 positioned on the side of the pressing protrusion 92 and above the guide recess 84. A guide recess 96 having a shape symmetrical to the guide recess 84 is formed at the lower end surface of the guide protrusion 94. A guide hole 100 is formed by combining the guide recess 84 and the guide recess 96.

<Drive mechanism 110>
The drive mechanism section 110 is provided so that the carrier separation section 80 can be moved downward relative to the lower mold 60. The drive mechanism unit 110 is provided so as to be able to reciprocate using, for example, an air cylinder or a hydraulic cylinder having an intermediate stop function as a drive source. But the drive mechanism part 110 is good also considering the motor etc. which was set to stop in the middle as a drive source.

  Here, the drive mechanism unit 110 reciprocates the ram member 54 in the vertical direction, so that the upper mold 70 and the pressing unit 90 connected to the ram member 54 reciprocate in the vertical direction. At this time, the driving mechanism 110 moves the ram member 54 downward while the pressing portion 90 is in contact with the carrier separating portion 80, so that the carrier separating portion 80 moves downward.

  Here, from the wire insertion posture to the next wire insertion posture is performed by one action of the drive mechanism unit 110. Here, one action refers to an operation in which the drive mechanism unit 110 moves without stopping. In other words, here, the drive mechanism 110 continues to move without stopping from the state in which the carrier separating portion 80 takes a certain wire insertion posture to the next wire insertion posture. In addition, the drive mechanism part 110 may perform the stop which is unavoidable on the structure of the drive mechanism part 110, such as the stop concerning the change of the moving direction at the top dead center and the bottom dead center, in one action. . During one action, one cycle including the steps of crimping the terminal, discharging the electric wire with terminal, feeding the terminal, and separating the carrier is performed. Further, as described above, the drive mechanism unit 110 is set to wait for the insertion of the electric wire between the end of one action and the start of the next one action.

  However, it is not essential that the driving mechanism unit 110 is stopped only when the electric wire is inserted. For example, the driving mechanism unit 110 may be stopped when the electric wire is discharged or when the electric wire is not inserted.

<Manufacturing method>
Next, the manufacturing method of the electric wire 10 with a terminal is demonstrated along with operation | movement of the terminal crimping apparatus 50. FIG. 5-11 is explanatory drawing which shows 1 process of the manufacturing method of the electric wire 10 with a terminal. FIG. 12 is an explanatory view showing one cycle of the method of manufacturing the terminal-attached electric wire 10. FIG. 6 is a schematic cross-sectional view of FIG. Similarly, FIG. 8 is a schematic sectional view of FIG. 7, and FIG. 10 is a schematic sectional view of FIG. FIG. 12 is an explanatory view showing the up-and-down movement of the ram member 54 and the relationship between the steps.

  Hereinafter, as shown in FIGS. 3 and 4, a description will be given from the state in which the terminal 30 connected to the chain terminal 20 is disposed on the lower mold 60 until the state returns to the state of FIGS. 3 and 4 again after one cycle. .

  First, the pressing portion 90 disposed opposite to the carrier separation portion 80 in a state where the crimp portion 40 of the terminal 30 is placed on the lower mold 60 and the carrier 22 is inserted into the insertion recess 82 of the carrier separation portion 80. Thus, the carrier separation unit 80 is moved downward with respect to the lower mold 60 to separate the carrier 22 (step (a)).

  Specifically, as shown in FIGS. 3 and 4, the drive mechanism 110 lowers the ram member 54 from the state in which the terminal 30 connected to the carrier 22 of the chain terminal 20 is newly disposed on the lower mold 60. To go. Then, the pressing portion 90 comes into contact with the carrier separation portion 80, lowers the carrier separation portion 80, and eventually comes into contact with the stopper 56. In this process, the carrier 22 inserted through the insertion recess 82 is sheared by the carrier separation unit 80.

  More specifically, the ram member 54 is disposed to lower the upper die 70 in a state where the carrier 22 is disposed in the insertion recess 82 and the crimping portion 40 of one terminal 30 is disposed above the lower die 60. Is lowered. Then, the pressing protrusion 92 of the pressing portion 90 comes into contact with the upper surface of the pressed portion 85 of the carrier separating portion 80 and lowers the carrier separating portion 80. That is, the pressing portion 90 also descends in response to the driving force of the driving mechanism 110 that lowers the upper mold 70. Then, the connecting portion 26 of the carrier 22 is sandwiched between the upper edge portion 82e of the insertion recess 82 and the edge portion 64e of the lower mold 60 and is eventually sheared, so that the terminal 30 and the carrier 22 are separated. The separated terminals 30 are placed on the lower mold 60.

  Next, after the step (a), the carrier separation portion 80 is moved downward with respect to the lower die 60 and is guided on the guide recess 84 provided in the carrier separation portion 80 to be mounted on the lower die 60. The core wire exposed part 14 is disposed on the inner peripheral surface of the placed crimping part 40 (step (b)).

  Specifically, after the carrier 22 is separated, the carrier separation unit 80 stands by in a wire insertion posture as shown in FIGS. Here, the carrier separation unit 80 comes into contact with the stopper 56 to stand by in a wire insertion posture.

  While the carrier separation unit 80 stands by in the electric wire insertion posture, the electric wire 12 is disposed on the crimping unit 40 as shown in FIGS. 7 and 8. Here, the core wire exposed portion 14 and the covering portion 16 positioned at the rear end of the core wire exposed portion 14 are inserted into the cylindrical portion 42.

  In this electric wire insertion posture, at least a surface of the guide recess 84 facing the electric wire 12 side and a surface of the crimping portion 40 placed on the lower mold 60 facing the electric wire 12 side include a surface positioned at the lowest position. It is set to be the same in some aspects. Thereby, it can suppress that a part of electric wire 12 contacts the periphery of the opening of the cylindrical part 42, and insertion to the cylindrical part 42 of the electric wire 12 becomes easier.

  Further, here, a guide hole 100 through which the core wire exposed portion 14 can be inserted is formed between the pressing portion 90 and the carrier separating portion 80 in a state where the pressing portion 90 is pressing the carrier separating portion 80. Yes. And the core wire exposure part 14 which passed the guide hole 100 is arrange | positioned by the crimping | compression-bonding part 40 by inserting the core wire exposure part 14 in the guide hole 100 (process (b1)).

  Next, after the step (b), the upper die 70 disposed facing the lower die 60 is moved toward the lower die 60, and the crimping portion 40 is crimped to the core wire exposed portion 14 (step (c)). ).

  Specifically, after the electric wire 12 is disposed in the crimping portion 40, the ram member 54 is moved downward by the drive mechanism portion 110 to further move the upper die 70 toward the lower die 60. Then, the upper mold 70 comes into contact with the crimping part 40 and starts to press the crimping part 40. Then, as shown in FIGS. 9 and 10, the ram member 54 moves to the lowest point, so that the upper mold 70 comes closest to the lower mold 60, and the crimping portion 40 is most deformed. Thereby, the crimping | compression-bonding to the crimping | compression-bonding part 40 of the terminal 30 is completed, and the electric wire 10 with a terminal is completed.

  Next, after the step (c), the terminal-attached electric wire 10 to which the terminal 30 is crimped is discharged from the lower mold 60, and the chain terminal 20 is sent to arrange the next terminal 30 on the lower mold 60. (Step (d)).

  Specifically, when the ram member 54 moves to the lowest point and the crimping of the terminal 30 to the crimping portion 40 is completed, the ram member 54 is moved upward, and the upper mold 70 is moved as shown in FIG. Move away from the lower mold 60. When the ram member 54 moves to the uppermost point and the upper mold 70 is farthest from the lower mold 60, the ram member 54 is moved downward again and the upper mold 70 approaches the lower mold 60. Move. While the ram member is moving downward from the lowest point where the crimping is completed through the highest point, the completed electric wire with terminal 10 is discharged and the terminal is fed. And it returns to the state of FIG.

  As described above, here, the steps (a), (b), (c), and (d) are defined as one cycle, and the one cycle is repeatedly performed to continuously manufacture the terminal-attached electric wire 10. Is done.

  At this time, here, one cycle of the drive mechanism 110 is performed in the order of step (b), step (c), step (d), and step (a). And between the process (a) and the process (b), the drive mechanism part 110 is provided so that standby is possible.

  According to the terminal crimping apparatus 50 according to the embodiment, the carrier separation portion 80 is provided with the insertion recess 82 through which the carrier 22 is inserted and is provided so as to be relatively movable with the lower die 60. 40 is placed and the carrier 22 is detachable by moving downward with respect to the lower mold 60 in a state where the carrier 22 is inserted into the insertion recess 82. Since the burr generated in the separated portion faces the opposite side to the electric wire 12, the portion is unlikely to damage the vicinity of the tip of the core wire. Also, a guide recess 84 that guides the core wire exposed portion 14 to the crimping portion 40 placed on the lower mold 60 is formed in the carrier separating portion 80, and the carrier separating portion 80 extends along the guide recessed portion 84. Since the core wire exposed portion 14 can be easily disposed in the crimping portion 40 since the core wire exposure portion 14 can be placed on the crimping portion 40. Accordingly, even when the closed barrel type terminal 30 is separated from the chain terminal 20 and is crimped to the electric wire 12, it is possible to facilitate crimping while making the vicinity of the end of the core wire less likely to be damaged.

  In addition, when the electric wire is inserted, the surface of the guide recess 84 facing the electric wire 12 side and the surface of the crimping portion 40 placed on the lower mold 60 facing the electric wire 12 side are positioned at the lowest position. Therefore, the core wire exposed portion 14 can be easily disposed by the crimping portion 40.

  Further, the drive mechanism unit 110 reciprocates the upper mold 70 and the pressing unit 90 with respect to the lower mold 60 and the carrier separation unit 80, and the operation from the wire insertion posture to the next wire insertion posture is performed by one action of the drive mechanism unit 110. Since the drive mechanism 110 is set to wait for the insertion of the electric wire 12 between the end of one action and the start of the next one action, the electric wire 12 is moved to the crimping portion 40 after the carrier 22 is separated. Even in the case of disposition, it is possible to reduce tact-up related to one press bonding.

  Further, a guide hole 100 through which the core wire exposed portion 14 can be inserted is formed between the pressing portion 90 and the carrier separation portion 80 in a state where the pressing portion 90 is pressing the carrier separation portion 80, and the guide recess 84 is Since the guide hole 100 is partially formed, the core wire exposed portion 14 can be easily disposed in the crimping portion 40 by inserting the core wire exposed portion 14 through the guide hole 100.

  Moreover, since the surface located in the side in which the electric wire 12 is inserted among the internal peripheral surfaces of the guide recessed part 84 is formed in the taper shape, the electric wire 12 becomes easy to be guide | induced to the guide recessed part 84. FIG.

  Further, according to the method for manufacturing the electric wire with terminal 10 according to the embodiment, the crimping portion 40 of the terminal 30 is placed on the lower mold 60 and the carrier 22 is inserted into the insertion recess 82 of the carrier separation portion 80. Thus, since the carrier separation portion 80 is moved downward with respect to the lower mold 60 and the step (a) for separating the carrier 22 is provided, the portion of the terminal 30 where the carrier 22 is separated is hardly damaged near the tip of the core wire. In addition, after the step (a), the carrier separation unit 80 is moved down with respect to the lower mold 60, and is placed on the lower mold 60 through the guide recess 84 provided in the carrier separation unit 80. Since the step (b) of disposing the core wire exposed portion 14 on the inner peripheral surface of the crimped portion 40 is provided, the core wire exposed portion 14 is easily disposed in the crimped portion 40. Accordingly, even when the closed barrel type terminal 30 is separated from the chain terminal 20 and is crimped to the electric wire 12, it is possible to facilitate crimping while making the vicinity of the end of the core wire less likely to be damaged.

  Further, during the step (b), the carrier separation portion 80 is moved downward with respect to the lower die 60 and placed on the surface facing the electric wire 12 side of the guide recess 84 and the lower die 60. Since the surface of the crimping portion 40 facing the electric wire 12 side is set to be flush with at least a part of the surface including the lowermost surface, the core wire exposed portion 14 is connected to the crimping portion 40. Easy to install.

  Further, after the step (c), the terminal-attached electric wire 10 to which the terminal 30 is crimped is discharged from the lower mold 60, the chain terminal 20 is sent, and the next terminal 30 is disposed on the lower mold 60. (D) is further provided, and the process (b), the process (c), the process (d), and the process (a) are performed in this order by one action of the drive mechanism unit 110, and the process (a) and the process (b) ), The drive mechanism 110 is provided so as to be able to stand by, so that it is possible to reduce tact-up related to the crimping of the electric wires 12.

  Further, a guide hole 100 through which the core wire exposed portion 14 can be inserted is formed between the pressing portion 90 and the carrier separation portion 80 in a state where the pressing portion 90 is pressing the carrier separation portion 80, and the guide recess 84 is In the step (b), the core wire exposed portion 14 that has passed through the guide hole 100 is disposed in the crimping portion 40 by inserting the core wire exposed portion 14 into the guide hole 100. Since the step (b1) is included, it is easy to dispose the core wire exposed portion 14 in the crimping portion 40.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Electric wire with a terminal 12 Electric wire 14 Core wire exposed part 16 Covering part 20 Chain terminal 22 Carrier 30 Terminal 40 Crimp part 50 Terminal crimping device 60 Lower mold | type 70 Upper mold | type 80 Carrier separation part 82 Insertion recessed part 84 Guide recessed part 90 Press part 100 Guide hole 110 Drive mechanism

Claims (9)

A terminal crimping device that separates a terminal from a chain terminal in which a plurality of terminals project from a carrier formed in a band shape and crimps the terminal to an exposed portion of the core of the electric wire,
A lower mold capable of placing the crimping portion provided on the terminal in a posture in which the crimping portion is positioned above the carrier;
An upper mold that is arranged opposite to the lower mold and that crimps the crimped part placed on the lower mold to the core wire exposed part;
A state in which an insertion recess is formed through which the carrier is inserted and is provided so as to be movable relative to the lower mold. The crimping portion is placed on the lower mold and the carrier is inserted into the insertion recess. A carrier separating portion provided to be able to separate the carrier by moving downward with respect to the lower mold,
A pressing portion provided to press the carrier separating portion and move the carrier separating portion downward relative to the lower mold;
A driving mechanism provided to move the pressing part and the upper mold relative to the carrier separating part and the lower mold;
With
A guide recess is formed in the carrier separation part to guide the core wire exposed part to the crimping part placed on the lower mold,
The carrier separating unit is a terminal crimping device provided so as to be able to stand by in an electric wire insertion posture in which the core wire exposed portion can be disposed in the crimping portion along the guide recess. The terminal crimping device according to claim 1,
In the wire insertion posture, the upper surface of the guide recess and the inner surface of the crimping portion placed on the lower mold are flush with at least a part of the surface including the lowest surface. A terminal crimping device that is set to be. The terminal crimping device according to claim 1 or 2,
The drive mechanism section reciprocates the upper mold and the pressing section with respect to the lower mold and the carrier separating section,
From the wire insertion posture to the next wire insertion posture is performed by one action of the drive mechanism portion, and the drive mechanism portion waits for the wire insertion between the end of one action and the start of the next one action. Terminal crimping device set to do. The terminal crimping apparatus according to any one of claims 1 to 3,
In the state where the pressing portion presses the carrier separating portion, a guide hole is formed between the pressing portion and the carrier separating portion so that the core wire exposed portion can be inserted. A terminal crimping device that forms part of the hole. The terminal crimping device according to any one of claims 1 to 4,
A terminal crimping apparatus, wherein a surface of the inner circumferential surface of the guide recess located on a side where the electric wire is inserted is tapered. A method for producing a terminal-attached electric wire, wherein the terminal is separated from a chain terminal in which a plurality of terminals project from a carrier formed in a band shape and is crimped to a core wire exposed portion of the electric wire,
(A) The carrier separation is performed by the pressing portion disposed opposite to the carrier separation portion in a state where the crimping portion of the terminal is placed on the lower mold and the carrier is inserted into the insertion recess of the carrier separation portion. Separating the carrier by moving a part downward with respect to the lower mold;
(B) After the step (a), the carrier separation portion is moved downward with respect to the lower die, and is guided on the guide recess provided in the carrier separation portion, and placed on the lower die. Disposing the core wire exposed portion on the inner peripheral surface of the placed crimping portion;
(C) After the step (b), the step of moving the upper die arranged to face the lower die toward the lower die, and crimping the crimping portion to the core wire exposed portion;
The manufacturing method of the electric wire with a terminal provided with. It is a manufacturing method of the electric wire with a terminal according to claim 6,
In the state of the step (b), the carrier separating portion is moved downward with respect to the lower mold, and the upper surface of the guide recess and the crimping portion placed on the lower mold are The manufacturing method of the electric wire with a terminal set so that an inner surface may become flush | planar with at least one part surface including the surface located in the lowest part. It is a manufacturing method of the electric wire with a terminal according to claim 6 or claim 7,
(D) After the step (c), discharging the terminal-attached electric wire with the terminal crimped from the lower mold, feeding the chain terminal, and disposing the next terminal on the lower mold Further comprising
By one action of the drive mechanism unit, the step (b), the step (c), the step (d) and the step (a) are performed in this order,
The manufacturing method of the electric wire with a terminal by which the said drive mechanism part is provided so that it can wait between the said process (a) and the said process (b). It is a manufacturing method of the electric wire with a terminal given in any 1 paragraph of Claims 6-8,
In the state where the pressing portion presses the carrier separating portion, a guide hole is formed between the pressing portion and the carrier separating portion so that the core wire exposed portion can be inserted. Part of the hole,
The step (b)
(B1) A method of manufacturing a terminal-attached electric wire, including a step of inserting the core wire exposed portion into the guide hole so that the core wire exposed portion that has passed through the guide hole is disposed in the crimping portion.

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