JP6572936B2 - Terminal crimping device - Google Patents

Description

  The present invention relates to a technique for holding a terminal during terminal crimping.

  A terminal may be connected to the end of the electric wire in the wire harness. The terminal concerned is crimped | bonded to an electric wire using the terminal crimping apparatus etc. of patent document 1 or patent document 2, etc., for example.

  In the terminal crimping apparatus described in Patent Document 1, a terminal to be crimped is supplied in a chained form in which a plurality of terminals are linked to a chain band (also referred to as a carrier). Detach operation is performed. At this time, in the terminal crimping device described in Patent Document 1, it is possible to perform the operation from the supply of the terminal to the crimping and detachment fully automatically by interlocking the terminal feeding mechanism and the crimping mechanism with one drive unit. .

  On the other hand, the terminal crimping device described in Patent Document 2 is a manual crimping tool that manually performs terminal supply and crimping operations. In this case, the terminals are manually supplied one by one.

  Here, it is desired that the positioning accuracy between the terminal and the electric wire is high when the terminal is crimped. At this time, in the terminal crimping device described in Patent Document 1, it is possible to improve the positioning accuracy of the terminal on the feeding mechanism side. On the other hand, when the manual crimping tool described in Patent Document 2 is supplied to the terminal crimping device as a single unit, such as a terminal to be crimped, in order to increase the positioning accuracy between the terminal and the wire, It is conceivable that a part of the terminal is held by the holding part and pressed while the front end surface along the longitudinal direction of the terminal abuts against the positioning part.

JP 2014-211958 A JP 2005-190829 A

  However, the terminal may be plastically deformed by the press at the time of crimping and extend in the longitudinal direction. In this case, if the tip end surface along the longitudinal direction of the terminal is pressed against the positioning member, the positioning member may hinder the elongation, and the terminal may be deformed into an unintended shape.

  Therefore, an object of the present invention is to provide a technique capable of allowing the terminal to extend along the longitudinal direction during crimping while making it possible to improve the positioning accuracy of the terminal.

In order to solve the above-described problem, a terminal crimping apparatus according to a first aspect includes a terminal holder that holds a terminal while positioning the terminal including a crimping portion to crimp an electric wire, and the terminal that the terminal holder holds. A mold for sandwiching and crimping to the electric wire, and a support jig in a state of supporting the electric wire, so that the end of the electric wire supported by the support jig is located at a position corresponding to the mold A support jig mounting portion that can be mounted on the terminal holder, the terminal holder being capable of holding a portion of the terminal different from the crimping portion, and a longitudinal direction of the terminal held by the holding portion A positioning portion provided so as to be able to abut against the front end surface and capable of moving toward and away from the holding portion, and a biasing portion for biasing the positioning portion in a direction approaching the holding portion. .

Terminal crimping apparatus according to a second aspect, there is provided a terminal crimping apparatus according to the first aspect, the holding portion is individually capable of holding a plurality of said terminals aligned in a direction intersecting the longitudinal direction.

The terminal crimping device according to a third aspect is the terminal crimping device according to the first or second aspect , wherein the support jig is configured to remove a plurality of the electric wires covered with one sheath from the sheath. Each exposed end portion can be supported so as to be located at a position corresponding to the mold .

A terminal crimping apparatus according to a fourth aspect is the terminal crimping apparatus according to any one of the first to third aspects, and an input unit through which an operator can input a force and the input unit A conversion unit that converts the force into a force that relatively moves the upper mold and the lower mold in the mold in the approaching and separating directions;

  A terminal crimping apparatus according to a fifth aspect is the terminal crimping apparatus according to the fourth aspect, wherein the input unit is formed so that it can be grasped by a hand and can be opened and closed. It includes two rod-shaped handle portions formed, and the conversion portion converts the opening / closing operation of the two rod-shaped handle portions into relative movement in the approaching / separating direction of the upper mold and the lower mold.

A terminal crimping apparatus according to a sixth aspect is the terminal crimping apparatus according to any one of the first to third aspects, further comprising a drive unit that moves the upper mold and the lower mold in the mold closer to and away from each other. Prepare.

A terminal crimping apparatus according to a seventh aspect is the terminal crimping apparatus according to the sixth aspect, wherein the support jig mounting portion is provided to be slidable in the longitudinal direction with respect to the upper mold.

According to each aspect, when the terminal is set, a portion different from the crimping portion in the terminal is held by the holding portion, and the positioning portion is abutted against the distal end surface along the longitudinal direction of the terminal, thereby raising the terminal relative to the terminal holder. Positioning with accuracy is possible. Further, when the tip of the terminal presses the positioning portion while the terminal is about to extend in the longitudinal direction when the terminal is crimped, the positioning portion is separated from the holding portion against the biasing force of the biasing portion. For this reason, the terminal can extend in the longitudinal direction. As a result, it is possible to allow the terminal to extend along the longitudinal direction during crimping while making it possible to improve the positioning accuracy of the terminal.

  In particular, according to the second aspect, when a plurality of terminals are crimped simultaneously by one crimping device, the plurality of terminals to be crimped simultaneously can be positioned and held.

  In particular, according to the fourth aspect, even in the case of a terminal crimping device that is operated by human power, it is possible to improve the positioning accuracy of the terminal and allow the terminal to extend along the longitudinal direction during crimping. it can.

  In particular, according to the fifth aspect, even when the terminal crimping apparatus is a so-called hand tool type that is held and operated by hand, it is possible to improve the positioning accuracy of the terminal while the terminal is aligned along the longitudinal direction during crimping. Can be allowed to stretch.

Moreover , according to each aspect, the positioning accuracy of an electric wire can be improved.

In particular, according to the sixth aspect, even in the case of a terminal crimping device operated by a drive unit, it is possible to improve the positioning accuracy of the terminal and allow the terminal to extend along the longitudinal direction during crimping. Can do.

In particular, according to the seventh aspect, when the terminal is supplied to the terminal holder, the supply work is facilitated by supplying the support jig mounting portion while moving the support jig mounting portion in the longitudinal direction with respect to the upper mold.

It is an example of the electric wire with a terminal manufactured with a terminal crimping device. It is a front view which shows the terminal crimping apparatus which concerns on 1st Embodiment. It is a side view which shows the terminal crimping apparatus which concerns on 1st Embodiment. It is an enlarged front view which shows the terminal crimping apparatus which concerns on 1st Embodiment. It is a disassembled perspective view which shows the terminal holder which concerns on 1st Embodiment. It is a top view which shows the terminal holder which concerns on 1st Embodiment. It is sectional drawing cut | disconnected along the VII-VII line of FIG. It is a disassembled perspective view which shows a support jig. It is explanatory drawing which shows the state which closed the terminal crimping apparatus. It is sectional drawing which shows the state of the terminal holder after crimping | compression-bonding. It is explanatory drawing which shows the state of the terminal holder before crimping. It is explanatory drawing which shows the state of the terminal holder after crimping | compression-bonding. It is a side view which shows the terminal crimping apparatus which concerns on 2nd Embodiment. It is a top view which shows the terminal crimping apparatus which concerns on 2nd Embodiment. It is a disassembled perspective view which shows the terminal holder which concerns on 2nd Embodiment. It is a disassembled perspective view which shows a support jig. It is explanatory drawing which shows a mode that the support jig mounting part was slid. It is explanatory drawing which shows a mode that the support jig mounting part was slid.

{First embodiment}
Hereinafter, the terminal holder according to the first embodiment and the terminal crimping apparatus including the terminal holder will be described.

<Wire with terminal>
First, the electric wire 1 with a terminal manufactured with a terminal crimping apparatus is demonstrated previously. Drawing 1 shows an example of electric wire 1 with a terminal manufactured by a terminal crimping device.

  The electric wire with terminal 1 includes an electric wire 3 and a terminal 7 that is crimped to an end of the electric wire 3. In this embodiment, two electric wires 3 are twisted together to form a twisted electric wire 2. Furthermore, in this embodiment, it demonstrates using the case where the electric wire 1 with a terminal is provided with the jacket 6 which covers the circumference | surroundings of the twist electric wire 2. FIG.

  Each electric wire 3 includes a core wire 4 and an insulating coating 5 that covers the periphery of the core wire 4. The core wire 4 is formed of a conductive material such as copper or aluminum. The core wire 4 may be composed of one strand or may be composed of a plurality of strands. When the core wire 4 is composed of a plurality of strands, the plurality of strands may be twisted or may not be twisted. The insulating coating 5 is formed by, for example, extruding an insulating material such as resin (for example, polyethylene or polyvinyl chloride) around the core wire 4.

  The jacket 6 is also called a sheath or the like, and is formed by extrusion molding around two electric wires 3 in which an insulating material such as a resin (for example, polyethylene or polyvinyl chloride) is twisted.

  The jacket 6 does not exist at the end of the terminal-attached electric wire 1, such as being peeled off. For this reason, the two electric wires 3 are exposed in the edge part of the electric wire 1 with a terminal. After twisting is unwound at the exposed ends of the two electric wires 3, the insulating coating 5 is peeled off. Thereby, the edge part of the core wire 4 is exposed. A terminal 7 is connected to a region including the exposed end portion of the core wire 4.

  The terminal 7 includes a crimping portion 8 and a counterpart connection portion 9. The crimping portion 8 includes a core wire crimping portion 8a and a covering crimping portion 8b. Each crimping portion 8 includes a bottom portion and a crimping piece that is formed standing on the bottom portion. Each crimping portion 8 is pressed while being sandwiched by a die of the terminal crimping device together with a portion to be crimped of the electric wire 3 (the core wire crimping portion 8a is the core wire 4 and the covering crimping portion 8b is the insulating coating 5). Thereby, each crimping | compression-bonding piece is crimped | bonded by the state which wound the part used as crimping | bonding object among the electric wires 3, and, thereby, the terminal 7 and the electric wire 3 are connected. For example, the mating side connection part 9 may be formed in a male terminal shape or may be formed in a female terminal shape. Here, the other side connection part 9 demonstrates in the example currently formed in the shape of a female terminal. Therefore, the other party connection part 9 has the box part formed in the box shape. And the contact part which can be connected with the tab terminal of the other party inserted in the inside of the said box part is formed in the inside of the said box part.

  The twisted electric wire 2 processed in this way is incorporated in a wire harness mounted on a vehicle, and is used as, for example, a cable for high-speed communication conforming to the Ethernet (registered trademark) standard.

  But the electric wire 3 used as manufacture object is not restricted above. For example, there may be a case where only one electric wire 3 exists. Further, for example, even when a plurality of electric wires 3 are provided, they may not be twisted together. Further, for example, there may be a case where the plurality of core wires 4 do not include the single insulation coating 5, and the plurality of core wires 4 share one insulation coating 5. For example, the electric wire 3 may not include the jacket 6. Further, the terminal 7 is not limited to the above. For example, the crimping part 8 of the terminal 7 may be the core crimping part 8a only, without the covering crimping part 8b.

<Terminal crimping device>
Next, a terminal crimping apparatus for crimping the terminal 7 to the end of the electric wire 3 will be described. FIG. 2 is a front view showing the terminal crimping apparatus 10 according to the first embodiment. FIG. 3 is a side view showing the terminal crimping apparatus 10 according to the first embodiment. FIG. 4 is an enlarged front view showing the terminal crimping apparatus 10 according to the first embodiment.

  The terminal crimping device 10 includes a terminal holder 60 and a mold. The present embodiment is an example in which the terminal crimping device 10 is a so-called manual crimping tool, and in particular, a case in which the operator inputs a force related to crimping by hand. Therefore, here, the terminal crimping apparatus 10 further includes a hand tool body 20. In the terminal crimping apparatus 10, a terminal holder 60 and a mold are incorporated as part of the upper unit 40 and the lower unit 50 attached to the hand tool main body 20.

  First, the hand tool main body 20 will be described. The hand tool body 20 includes an input unit 22 and a conversion unit 30.

  The input unit 22 allows an operator to input force. Here, the input unit 22 includes two bar-shaped handle portions 23 and 24 for the operator to input force by hand. The two rod-like handle portions 23 and 24 are formed so that an operator can hold them with hands. The two rod-like handle portions 23 and 24 are formed so that an operator can manually open and close them. Specifically, each of the rod-like handle portions 23 and 24 is formed in a long rod shape, and is rotatably connected by a rotation pin 26 at one end side. The operator can relatively move the portion in the approaching / separating direction while grasping the other end side portion from the portion connected by the rotation pin 26. Hereinafter, the state where the other end portions of the two rod-like handle portions 23 and 24 are separated (state shown in FIG. 2) is referred to as an open state, and the state where they are close (state shown in FIG. 9) is referred to as a closed state. At this time, the operator can close the two bar-shaped handle parts 23 and 24 by inputting a force in such a direction that the other end parts of the two bar-shaped handle parts 23 and 24 in the open state approach each other. The

  The conversion unit 30 converts the force input to the input unit 22 into a force that relatively moves the upper mold 42 and the lower mold 52 in the mold in the approaching / separating direction. In particular, here, the conversion unit 30 converts the opening / closing operation of the two bar-shaped handle units 23 and 24 into relative movement of the upper mold 42 and the lower mold 52 in the approaching / separating direction. Specifically, the conversion unit 30 includes an upper frame 32, a lower frame 34, and a link 36.

  In the upper frame 32, one end is rotatably supported on one end of the rod-like handle portion 23 by a rotation pin 33. The upper frame 32 is formed to be shorter than the rod-shaped handle portion 23. An upper unit 40 is attached to the other end side of the upper frame 32. The upper unit 42 is provided with an upper mold 42 in the mold. As shown in FIG. 4, the tip of the upper mold 42 protrudes toward the lower frame 34 with respect to the upper frame 32.

  In the lower frame 34, one end portion is rotatably supported by one end portion of the rod-like handle portion 24 by a rotation pin 35. The lower frame 34 is formed to be shorter than the rod-like handle portion 24. A lower unit 50 is attached to the other end side of the lower frame 34. The lower unit 50 is provided with a lower mold 52 in the mold. The tip of the lower mold 52 protrudes toward the upper frame 32 with respect to the lower frame 34.

  The link 36 is a portion that connects the upper frame 32 and the lower frame 34. The link 36 is rotatably supported on the upper frame 32 by a rotation pin 37 on one end side. The link 36 is rotatably supported on the lower frame 34 by a rotation pin 38 on the other end side. By providing the link 36, when the rod-like handle portions 23 and 24 are opened and closed, the upper frame 32 and the lower frame 34 change their postures without changing the interval between the portions connected by the link 36. To do.

  More specifically, here, the two rotation pins 33 and 35 (operation points) for rotatably holding the upper frame 32 and the lower frame 34 respectively hold the two handle portions 23 and 24 rotatably. With respect to the rotation pin 26 (fulcrum), it is located on the tip side of the position held by the operator, that is, the position where the force is input (force point). For this reason, when the two rod-like handle portions 23 and 24 shift from the open state to the closed state, the two rotation pins 33 and 35 that respectively hold the upper frame 32 and the lower frame 34 so as to be rotatable move apart. At this time, the distance between the intermediate portions of the upper frame 32 and the lower frame 34 to which the links 36 are connected does not change. For this reason, the other end portions of the upper frame 32 and the lower frame 34 approach each other, so that the upper unit 40 including the upper mold 42 and the lower unit 50 including the lower mold 52 are relatively movable in the approaching direction. (See FIG. 9). Further, when the two rod-like handle portions 23 and 24 are shifted from the closed state to the open state, the upper frame 32 and the lower frame 34 are opposite to each other while the respective one end portions approach each other. Therefore, the upper unit 40 including the upper mold 42 and the lower unit 50 including the lower mold 52 are relatively movable in a direction in which they are separated from each other.

  It is conceivable that the conversion unit 30 further includes a ratchet unit (not shown). The ratchet portion limits the operating direction of the rod-like handle portions 23 and 24 by the operator to a direction from the open state to the closed state. Thereby, it does not change from a closed state to an open state suddenly during crimping, and crimping failure can be suppressed.

  At this time, the conversion unit 30 may further include a ratchet part releasing unit (not shown) that releases the operation of the ratchet part. Thereby, the transition from the closed state to the open state of the rod-like handle portions 23 and 24 regulated by the ratchet portion can be performed. As such a ratchet part release part, for example, in a state where the two bar-shaped handle parts 23 and 24 are closed and the crimping operation is completed, the operator further moves the two bar-shaped handle parts 23 and 24 closer to each other. It may be configured to operate by applying force. Thereby, it is suppressed that a ratchet part cancellation | release part obstructs a crimping | compression-bonding operation | movement. In this case, in order to operate the ratchet part release portion in a state where the crimping operation is completed, even when the operator applies a force in the direction in which the two rod-like handle portions 23 and 24 are brought closer, A stopper 46 may be provided so that the mold 52 does not approach any more. The stopper portion 46 will be described later.

  Further, at this time, it is conceivable that the conversion unit 30 further includes an urging unit (not shown) that urges the two bar-shaped handle portions 23 and 24 to the open state. Thereby, when the operation of the ratchet portion is released by the ratchet portion, the two bar-shaped handle portions 23 and 24 can be quickly returned to the open state.

  However, the hand tool main body 20 only needs to be able to convert the force input by the operator by hand into a force in a direction in which the upper mold 42 and the lower mold 52 are moved toward and away from each other, and the configuration is limited to the above. It is not a thing.

  The upper unit 40 is provided on the upper frame 32. The upper unit 40 includes an upper mold 42 and an upper mold guide portion 44. Here, the tip of the upper frame 32 is divided into two parts, and the upper mold 42 and a part of the upper mold guide part 44 are supported while being sandwiched between the upper frame 32 divided into two parts.

  The upper mold 42 forms a mold for sandwiching the terminal 7 held by the terminal holder 60 together with the lower mold 52 described later and crimping it to the electric wire 3. The upper mold 42 is formed with a terminal deformation portion 43 that deforms the terminal 7 when the terminal 7 is sandwiched together with the lower mold 52. The upper die 42 includes a core wire crimping portion upper die 42a and a covering crimping portion upper die 42b. The upper mold is formed in a rectangular plate shape, and a concave portion serving as a terminal deforming portion 43 is formed at the lower end in the longitudinal direction. The terminal deformed portion 43 in the core wire crimping portion upper mold 42a is formed in a shape corresponding to the core wire crimping portion 8a, and the terminal deformed portion 43 in the coated crimping portion upper mold 42b is formed in a shape corresponding to the coated crimping portion 8b. Is done. Further, the upper die 42 is supported by the upper frame 32 by being screwed to the upper frame 32 using a through hole formed in the intermediate portion. Therefore, the upper mold 42 can be attached to and detached from the upper frame 32 and can be exchanged. At this time, the upper mold 42 is preferably supported so as to be movable in the longitudinal direction with respect to the upper frame 32 so that the pressure-bonding height can be adjusted. For example, the upper mold is movable in the longitudinal direction with respect to the upper frame 32 because the through hole is a long hole. The movement of the upper mold 42 along the longitudinal direction is performed, for example, by an adjusting unit (not shown).

  The upper mold guide portion 44 is fixed to the upper frame 32. The upper mold guide part 44 includes, for example, an intermediate part superimposed on the upper mold 42 and both end parts 45 projecting on both sides of the intermediate part. The intermediate portion is fixed to the upper frame 32 with the same screw as the screw that holds the upper die 42. Both end portions 45 are formed thick and sandwich the upper mold 42 from both sides. Thereby, the attitude | position of the upper mold | type 42 is stabilized. Further, as shown in FIG. 3, the lower portion 45a of the both end portions 45 is formed thicker than the upper portion, and is hooked on the upper frame 32 divided into two. As a result, the upper mold guide portion 44 is positioned (rotated) with respect to the upper frame 32. Further, the adjusting portion is provided on the upper surface of the upper mold guide portion 44.

  For example, an adjustment screw may be used as the adjustment unit. More specifically, the adjusting portion includes a connecting plate portion that connects the upper surfaces of both end portions 45 of the upper die 42, a screw that is passed through a through hole formed in the connecting plate portion, a nut that holds the screw, and an upper die. And an urging portion that urges 42 upward (in a direction away from the lower mold 52). The urging portions are provided between both side portions of the upper die 42 and both end portions 45 of the upper die guide portion 44, respectively. The tip of the screw extending from the through hole of the connecting plate portion is in contact with the upper mold 42, and the position of the upper mold 42 relative to the upper frame 32 can be adjusted by adjusting the length of the screw extending from the through hole. The

  The lower unit 50 is provided on the lower frame 34. The lower unit 50 includes a lower mold 52, a terminal holder 60, and a support jig mounting portion 80, which are fixed to the lower frame 34. Here, the tip of the lower frame 34 is bifurcated, and a part of the lower mold 52 is sandwiched between the bifurcated lower frame 34. Further, the terminal holder 60 protrudes outwardly from one side of the bifurcated lower frame 34. Further, the jig mounting portion protrudes outward from the other side of the lower frame 34 which is divided into two.

  The lower mold 52 is disposed opposite to the upper mold 42. The lower mold 52 forms a mold for sandwiching the terminal 7 held by the terminal holder 60 together with the upper mold 42 and crimping the terminal 7 to the electric wire 3. The lower die 52 includes a core wire crimping portion lower die 52a and a covering crimping portion lower die 52b. The lower mold 52 has a base end portion 53 that is formed in a rectangular plate shape, and a terminal support portion 54 that supports the terminal 7 in a manner that protrudes upward (in the direction toward the upper mold 42) from the intermediate portion in the width direction of the base end portion 53. Is formed. The terminal support portion 54 in the core wire crimping portion lower mold 52a is formed in a shape corresponding to the core wire crimping portion 8a, and the terminal support portion 54 in the coated crimping portion lower mold 52b is formed in a shape corresponding to the coated crimping portion 8b. Is done. Each lower mold 52 is supported by the lower frame 34 by, for example, screwing the base end portion 53 to the lower frame 34. Therefore, each lower mold | type 52 can be attached or detached with respect to the lower side frame 34, and is replaceable. Further, the protrusions 55 are formed so as to protrude upward (in the direction toward the upper mold 42) from both ends in the width direction of the base end portion 53. As shown in FIG. 3, the protrusion 55 is formed thicker than the base end portion 53 and is hooked on the lower frame 34 which is divided into two. As a result, the lower mold 52 is positioned (stopped) with respect to the lower frame 34.

  Here, as shown in FIGS. 3 and 4, a stopper portion 46 protrudes from the lower surface of the lower portion of both end portions 45 of the upper mold guide portion 44. The stopper portion 46 can adjust the projecting dimension from the lower portion of the both end portions 45 of the upper mold guide portion 44. As a configuration that makes this possible, for example, a configuration that includes a screw that is screwed into a screw hole formed in a lower portion of both end portions 45 of the upper mold guide portion 44 and a nut that is screwed to the screw or the like can be considered. The stopper portion 46 contacts the upper surface of the protrusion 55 of the lower die 52 when the crimping is completed, and prevents the upper die 42 and the lower die 52 from approaching further. Thus, even when force is further applied in the direction in which the two bar-shaped handle portions 23 and 24 approach each other after the completion of crimping, for the purpose of releasing the ratchet portion or unintentionally, the upper die 42 and the lower die 52 are This approach is suppressed.

  The terminal holder 60 is disposed on the distal end side of the terminal 7 supported by the lower mold 52 with respect to the lower mold 52. Hereinafter, the terminal holder 60 will be described in detail with reference to FIGS. 5 to 7. FIG. 5 is an exploded perspective view showing the terminal holder 60 according to the first embodiment. FIG. 6 is a plan view showing the terminal holder 60 according to the first embodiment. 7 is a cross-sectional view taken along line VII-VII in FIG.

  The terminal holder 60 holds the terminal 7 while positioning the terminal 7 including the crimping portion 8 when the terminal 7 is crimped to the electric wire 3. Here, the terminal holder 60 can hold the two terminals 7 while positioning them side by side. Specifically, the terminal holder 60 includes a base body 62, a lid part 64, a positioning part 68, an urging part 70, and a retaining part 72.

  The base body 62 is fixed to the lower frame 34. The base body 62 is fixed to the lower frame 34 by, for example, a mounting portion 62 a extending downward being screwed to the lower frame 34. The upper surface 62b of the base body 62 located on the opposite side of the mounting portion 62a has a rectangular first flat surface 62c, a rectangular second flat surface 62d protruding outward from the first flat surface 62c, and a first The guide surface 62e is formed by chamfering one end edge of the upper surface 62b of the base body 62, which is one end edge of the flat surface 62c. A recess 63 is formed on the upper surface 62 b of the base body 62.

  For example, the recess 63 is formed so as to be recessed in the normal direction of the first flat surface 62c. Here, as the recess 63, a terminal accommodating recess 63a, a positioning portion accommodating recess 63b, and an urging portion accommodating recess 63c are formed. Further, here, a rotation mechanism accommodating recess 63 d is also formed as the recess 63.

  The terminal accommodating recess 63 a is formed so as to accommodate the mating connection portion 9 in the terminal 7. Specifically, the terminal accommodating recess 63a is formed in a rectangular hole shape that is long in the first direction along the direction in which the first flat surface 62c and the second flat surface 62d are arranged. One end of the terminal receiving recess 63a in the first direction is opened outward from the guide surface 62e. Thereby, the crimping | compression-bonding part 8 can be extended outside through the said opening in the state in which the other party connection part 9 was stored in the terminal accommodation recessed part 63a. The other end in the first direction of the terminal receiving recess 63a communicates with the positioning portion receiving recess 63b. Thereby, the front-end | tip of the terminal 7 accommodated in the terminal accommodation recessed part 63a can come out to the positioning part accommodation recessed part 63b.

  In the present embodiment, a plurality (two in this case) of terminal receiving recesses 63a are formed. The two terminal accommodating recesses 63a are formed side by side along a second direction that intersects the first direction in the direction in which the first flat surface 62c extends. Each of the two terminal accommodating recesses 63a can accommodate one counterpart connection portion 9. The length dimension of the terminal accommodating recess 63a is set, for example, to be equal to or less than the length dimension of the mating connection portion 9 (here, slightly smaller than the length dimension of the mating connection portion 9). The width dimension of the terminal accommodating recess 63a is set, for example, to be approximately the same as the width dimension of the mating connection portion 9 (here, slightly larger than the width dimension of the mating connection portion 9). For example, the depth dimension of the terminal accommodating recess 63a is set to be approximately the same as the height dimension of the mating connection portion 9 (slightly larger here).

  The positioning portion accommodating recess 63b is formed on the first flat surface 62c so as to accommodate the positioning portion 68. Here, the positioning portion accommodating recess 63b is formed in a rectangular hole shape that is long in the second direction. The length dimension (dimension along the second direction) of the positioning portion receiving recess 63b is set to be larger than the length dimension of the positioning portion 68 (here, slightly larger than the length dimension of the positioning portion 68). . The width dimension (dimension along the first direction) of the positioning part accommodating recess 63 b is set to be larger than the width dimension of the positioning part 68. Thereby, the positioning part 68 becomes movable in the width direction in the state accommodated in the positioning part accommodation recessed part 63b. The positioning portion receiving recess 63b communicates with the terminal receiving recess 63a in the middle portion in the length direction. Further, the positioning portion receiving recess 63b communicates with the biasing portion receiving recess 63c on the opposite side of the terminal receiving recess 63a in the longitudinal intermediate portion.

  The urging portion accommodating recess 63c is formed so as to accommodate the urging portion 70. The urging portion accommodating recess 63 c is formed in a shape corresponding to the urging portion 70. Here, since a compression coil spring is provided as the urging portion 70, the urging portion accommodating recess 63c is formed in a groove shape long in the first direction.

  The rotation mechanism accommodating recess 63d is formed so as to accommodate a mechanism for rotating the retaining plate portion 73 in the retaining portion 72.

  The lid part 64 is formed in a rectangular plate shape. The lid portion 64 is fixed to the base body 62 with, for example, a screw (not shown). The lid part 64 covers the upper part of the terminal accommodating recess 63a. Therefore, here, the periphery of the mating connection portion 9 in the terminal 7 can be covered from four directions by the inner peripheral surface of the terminal accommodating recess 63a and the lower surface of the lid portion 64. Here, the portion of the terminal 7 that covers the periphery of the counterpart connection portion 9 from four directions is a holding portion 66 that can hold a portion of the terminal 7 that is different from the crimping portion 8. Here, since a plurality (two in this case) of terminal receiving recesses 63a are formed, the holding portion 66 can individually hold a plurality (here, two) of terminals 7 arranged in a direction intersecting the longitudinal direction. is there.

  The positioning portion 68 is provided so as to be able to abut on the tip surface along the longitudinal direction of the terminal 7 held by the holding portion 66. Further, the positioning unit 68 is provided so as to be movable toward and away from the holding unit 66. Here, the positioning portion 68 is formed in a rod shape and is housed in the positioning portion receiving recess 63b. At this time, the positioning portion 68 is movable in the width direction with respect to the positioning portion receiving recess 63b. As a result, the positioning unit 68 can move toward and away from the holding unit 66.

  The urging unit 70 urges the positioning unit 68 in a direction approaching the holding unit 66. As described above, here, the biasing portion 70 will be described as a compression coil spring. However, as the urging portion 70, another spring member such as a leaf spring or a member formed of an elastic material such as rubber may be used. The urging portion 70 is accommodated in the urging portion accommodating recess 63c. At this time, the urging unit 70 is in a natural state or a compressed state in a state in which the positioning unit 68 is closest to the holding unit 66 (here, a state in which the tip of the positioning unit 68 is in contact with the side surface of the positioning unit receiving recess 63b). It is good to be.

  The retaining portion 72 is a portion that prevents the terminal 7 held by the retaining portion 66 from coming off. The removal portion includes a retaining plate portion 73 and an opening / closing operation portion 75.

  The retaining plate portion 73 includes a wide portion 73a and a narrow portion 73b connected to the wide portion 73a. The base portion 73c of the wide portion 73a and the narrow portion 73b are formed in a flat plate shape, and the distal end portion 73d of the narrow portion 73b is bent with respect to the base end portion 73c. The retaining plate portion 73 is pivotally supported by the rotation pin 74 so as to be rotatable with respect to the base body 62. The retaining plate portion 73 is opened and closed by rotating with respect to the base body 62. In the following, the state where the retaining plate 73 can retain the terminal 7 as shown by the solid line in FIG. 7 is the closed posture, and the posture rotated from the closed posture as shown by the phantom line in FIG. An attitude in which the terminal can be removed from the terminal receiving recess 63a is defined as an open attitude. In the closed posture, the base ends 73c of the wide portion 73a and the narrow portion 73b are parallel to the upper surface 62b of the base body 62, and the distal end portion 73d of the narrow portion 73b closes at least a part of the opening of the terminal accommodating recess 63a. . At this time, if the mating connection portion 9 of the terminal 7 is accommodated in the terminal accommodating recess 63a, the leading end portion 73d of the narrow portion 73b can be hooked on the rear end portion of the mating connection portion 9, and thus the terminal 7 It is in a state in which it is prevented from coming off. In the open posture, the base end portions 73c of the wide portion 73a and the narrow portion 73b are separated from the upper surface 62b of the base 62, and the state where the distal end portion 73d of the narrow portion 73b blocks the opening of the terminal accommodating recess 63a is released. Is done. The rotation angle of the retaining plate portion 73 with respect to the base body 62 from the closed posture is such that the state where the distal end portion 73d of the narrow portion 73b of the retaining plate portion 73 blocks the opening of the terminal accommodating recess 63a is released. If there is, it will not be specifically limited.

  The opening / closing operation unit 75 allows the retaining portion 72 to be opened and closed. Here, the opening / closing operation unit 75 includes an operation dial 76 and two gears 77 and 78. The operation dial 76 is provided on the side surface of the base body 62. The two gears 77 and 78 are housed in the rotation mechanism housing recess 63d in a state of being engaged with each other. The gear 77 is non-rotatably supported by a shaft connected to the operation dial 76, and the gear 78 is fixed to the retaining plate portion 73. A rotation pin 74 is passed through the gear 78. When the operation dial 76 is turned, the gear 77 is turned. As a result, the gear 78 meshing with the gear 77 rotates, and the retaining plate portion 73 to which the gear 78 is fixed rotates. In addition, the opening / closing operation part 75 is good to be able to maintain the retaining plate part 73 in an open state. Moreover, the opening / closing operation part 75 is good to be able to maintain the retaining plate part 73 in a closed state.

  The support jig mounting portion 80 can mount the support jig 90 that supports the electric wire 3 so that the end of the electric wire 3 supported by the support jig 90 is located at a position corresponding to the mold. The support jig mounting portion 80 is disposed on the opposite side to the terminal holder 60 with respect to the lower mold 52. Specifically, the support jig mounting portion 80 includes a stage 82 and a mounting portion 84.

  The stage 82 is formed in a rectangular plate shape. A support jig 90 is placed on the upper surface of the stage 82. At this time, a recess 83 is formed on the upper surface of the stage 82. A convex portion 98 formed in the support jig 90 is accommodated in the concave portion 83. When the convex portion 98 is accommodated in the concave portion 83, the support jig mounting portion 80 and the support jig 90 are positioned. A plurality of the concave portions 83 and the convex portions 98 are preferably formed. Thereby, the rotation prevention of the support jig mounting part 80 and the support jig 90 can be aimed at.

  The attachment portion 84 protrudes from both sides of the base end of the stage 82. The attachment portion 84 is overlapped with the protrusion 55 of the lower mold 52. Then, the support jig mounting portion 80 is fixed to the lower mold 52 by, for example, screwing the attachment portion 84 to the protrusion 55, and is fixed to the lower frame 34. However, the support jig mounting portion 80 may be directly fixed to the lower frame.

  Here, the support jig 90 mounted on the support jig mounting portion 80 will be described with reference to FIG. FIG. 8 is an exploded perspective view showing the support jig 90.

  The support jig 90 is a member that supports the electric wire 3 when the terminal is crimped to the electric wire 3. Here, since the twisted electric wire 2 is assumed as the electric wire 3 and the two-terminal simultaneous crimping is assumed as the crimping mode of the terminal 7, the support jig 90 positions the ends of the two electric wires 3 in the twisted electric wire 2. Can be held. Specifically, the support jig 90 includes a first member 91 and a second member 94.

  The first member 91 is a part that partitions the tip of the twisted electric wire 2. The first member 91 includes a rod-shaped portion 92 formed in the shape of a long rod, and a protruding piece 93 provided in a manner that protrudes in a direction intersecting the extending direction of the rod-shaped portion 92 at the tip end on one end side of the rod-shaped portion 92. Including. The protruding piece 93 is formed with two groove portions 93a that are recessed from the front edge portion toward the proximal end side. Thereby, the front-end | tip of the protrusion piece 93a is formed in the comb shape which has three teeth. Each groove part 93a is formed so that the part in which the insulation coating 5 of the electric wire 3 exists can be inserted. Therefore, the end portions of the two electric wires 3 are respectively inserted into the respective groove portions 93a, whereby the two electric wires 3 are partitioned and held. That is, here, the portion of the protruding piece 93 where the two groove portions 93a are formed constitutes a partition portion. At this time, it is preferable that the width dimension of the groove part 93a is set to the dimension which can press-fit the electric wire 3. FIG. Thereby, even when the support jig 90 is used in a state where the groove portion 93a faces vertically downward, the state where the partition portion holds the electric wire 3 can be more reliably maintained.

  The second member 94 is a portion that holds an intermediate portion (here, a portion having the jacket 6) of the twisted electric wire 2. The second member 94 is formed in a long rectangular parallelepiped shape. The second member 94 is formed so that a cross section cut along a plane orthogonal to the longitudinal direction is wide. A first groove 95 in which the first member 91 is accommodated is formed on one main surface of the second member 94. The width dimension of the first groove 95 is set to be approximately the same as the width dimension of the first member 91. In addition, a second groove 96 in which the twisted electric wire 2 is received and held is formed on the other main surface of the second member 94 facing away from the one main surface. Here, the 1st groove | channel 95 and the 2nd groove | channel 96 are formed over the whole length direction of the 2nd member 94, ie, from the one end side edge part of the 2nd member 94 to the other end side edge part. ing. The width dimension of the second groove 96 is set to be approximately the same as the width dimension of the region where the jacket 6 exists in the twisted electric wire 2. Preferably, the width dimension of the second groove 96 is set to a dimension capable of press-fitting a portion of the twisted electric wire 2 where the jacket 6 exists. This makes it difficult for the twisted electric wire 2 to fall off the second groove 96 even when the second groove 96 is directed vertically downward.

  The 1st member 91 and the 2nd member 94 are united by the uniting mechanism part. Here, screw holes 91a and 94a and screws are assumed as such a uniting mechanism. Screw holes 91a and 94a are formed in the first member 91 and the second member 94, respectively. The screw hole 91a formed in the first member 91 is formed in the base end portion of the rod-shaped portion 92 so as to penetrate both side surfaces along the width direction. For example, two screw holes 91 a are formed along the extending direction of the rod-shaped portion 92. The screw hole 94a formed in the second member 94 is formed so as to penetrate from the inner peripheral surface to the side surface of the first groove 95 along the width direction. Two screw holes 94 a are also formed along the extending direction of the second member 94. Then, the first member 91 is accommodated in the first groove 95 and the two screw holes 91a and 94a are aligned, and the first member 91 and the second member 94 are tightened by tightening the screws in the screw holes 91a and 94a. Are united. Further, when the screw is removed, the locking of the first member 91 and the second member 94 is released, and it becomes a detachable state. Here, the screw hole 94a is formed in a long hole. Thereby, the positions of the first member 91 and the second member 94 can be adjusted. However, the configuration of the uniting mechanism is not limited to the above. For example, a fitting structure of a convex part and a concave part may be used, or a locking mechanism such as a snap lock described later may be used.

  Further, the second member 94 is formed with a convex portion 98 for positioning to the support jig mounting portion 80. The convex portion 98 is formed so as to protrude from the other main surface of the second member 94. The convex portion 98 is formed at a position avoiding the second groove 96 along the width direction of the second member 94. The convex portion 98 is formed between the two screw holes 94 a along the longitudinal direction of the second member 94. For example, two convex portions 98 are formed at intervals along the width direction of the second member 94.

  The support jig mounting portion 80 and the support jig 90 may be maintained in a mounting state in which the convex portion 98 is fitted in the concave portion 83. For example, a magnet can be used as the mounting state maintaining unit that maintains the supporting jig mounting unit 80 and the supporting jig 90 in the mounting state. In this case, for example, a configuration is conceivable in which permanent magnets that attract each other are fixed to both the tip of the convex portion 98 and the bottom of the concave portion 83. Further, a configuration in which the permanent magnet is fixed only to one of the tip of the convex portion 98 or the bottom of the concave portion 83 and the contact portion of the counterpart member with the permanent magnet is formed of a magnetic material such as stainless steel.

  But it is not restricted to the structure which used the permanent magnet as a mounting state maintenance part which maintains the support jig mounting part 80 and the support jig 90 in a mounting state, For example, by press-fitting with the recessed part 83 and the convex part 98 etc. For example, the structure using the snap lock mentioned later may be sufficient.

<Operation>
Next, a terminal crimping operation example using the terminal crimping apparatus 10 will be described.

  First, the terminal 7 is set in the terminal holder 60 fixed to the terminal crimping apparatus 10. Specifically, the two terminals 7 are inserted into the terminal accommodating recess 63a in a state where the opening / closing operation part 75 is operated to open the retaining part 72. Then, while the leading end surface of the terminal 7 is abutted against the positioning portion 68, the retaining portion 72 is closed and the distal end of the retaining portion 72 is hooked on the rear end of the mating connection portion 9. As a result, the terminal 7 is positioned and set on the terminal crimping device 10 with high accuracy. That is, when the terminal 7 is set in the terminal holder 60, the crimping portion 8 extending from the mating connection portion 9 held by the terminal holder 60 among the terminals 7 is placed on the lower mold 52 or the lower mold. 52 is located slightly above the position 52.

  Next, the electric wire 3 is set in the terminal crimping device 10.

  In setting the electric wire 3 to the terminal crimping device 10, first, the electric wire 3 is set on the support jig 90. Specifically, in the support jig 90, the first member 91 and the second member 94 are in a combined state in advance. In this state, the two electric wires 3 exposed at the tip of the twisted electric wire 2 are untwisted and inserted into each groove 93 a of the first member 91. Further, the intermediate portion of the twisted electric wire 2 is inserted into the second groove 96 of the second member 94. Thereby, the setting of the electric wire 3 to the support jig 90 is completed.

  When the setting of the electric wire 3 to the support jig 90 is completed, the support jig 90 with the electric wire 3 set is attached to the terminal crimping apparatus 10. Specifically, the convex portion 98 protruding from the lower surface of the second member 94 of the support jig 90 is stored in the concave portion 83 formed on the upper surface of the stage 82 of the support jig mounting portion 80. At this time, the support jig 90 and the support jig mounting portion 80 are fixed by the permanent magnet provided at least one of the tip of the convex portion 98 or the bottom of the concave portion 83 as described above. When the mounting of the support jig 90 on which the electric wire 3 is set to the terminal crimping device 10 is completed, the setting of the electric wire 3 to the terminal crimping device 10 is completed. As a result, the end of the electric wire 3 is placed on the bottom of the crimping portion 8 or is positioned slightly above the bottom within a range that fits between the crimping pieces.

  Therefore, when the setting of the terminal 7 and the electric wire 3 to the terminal crimping device 10 is completed, the crimping portion 8 of the terminal 7 is located between the upper die 42 and the lower die 52, and the bottom portion of the crimping portion 8 and the upper die 42. It will be in the state where electric wire 3 is located between. When this state is reached, the operator starts the crimping operation.

  Specifically, as shown in FIG. 9, the operator inputs a force in a direction approaching each other while grasping the two bar-shaped handle portions 23 and 24. When the two bar-shaped handle portions 23 and 24 approach each other by this force, as described above, the tip portions of the upper frame 32 and the lower frame 34 approach, and the upper unit 40 and the lower unit 50 approach each other. Thereby, the upper mold | type 42 and the lower mold | type 52 approach, and the crimping | compression-bonding part 8 and the electric wire 3 are inserted | pinched, and it presses in time, and it changes to the shape according to the shape of the deformation | transformation part of the crimping | compression-bonding part 8.

  When the terminal 7 tries to extend in the longitudinal direction during this deformation, the tip surface of the terminal 7 presses the positioning portion 68. The positioning portion 68 receives the pressing force and moves away from the holding portion 66 as shown in FIG. 10 against the urging force. Thereby, the terminal 7 can be extended in the longitudinal direction.

  When the operation of the positioning unit 68 before and after the crimping is viewed in a plan view, it is as shown in FIGS. In other words, in a state before the press bonding, as shown in FIG. When the terminal 7 tries to extend in the longitudinal direction along with the crimping, the tip surface of the terminal 7 presses the positioning portion 68. The positioning portion 68 moves away from the holding portion 66 as shown in FIG. Note that the amount of movement of the positioning portion 68 depends on the amount of elongation of the terminal 7. Therefore, it is preferable that the difference between the width dimension of the positioning portion accommodating recess 63b and the width dimension of the positioning portion 68 is set to be equal to or larger than the expected maximum elongation of the terminal 7. In FIG. 12, the two terminals 7 are similarly extended, but the two terminals 7 may have different extension amounts. In this case, it is possible that only the terminal 7 with the larger extension amount presses the positioning portion 68.

  When the terminal crimping is completed, the terminal-attached electric wire 1 is taken out. Specifically, the operator inputs further force in a direction approaching each other while grasping the two bar-shaped handle portions 23 and 24. Thereby, a ratchet part is cancelled | released and the two rod-shaped handle parts 23 and 24 transfer to an open state. In this state, the support jig 90 on which the terminal-attached electric wire 1 is set is removed from the support jig mounting portion 80 while the retaining portion 72 of the terminal holder 60 is opened. And the electric wire 1 with a terminal as shown in FIG. 1 can be obtained by removing the electric wire 1 with a terminal from the support jig 90. FIG.

  According to the above aspect, when the terminal 7 is set, the portion different from the crimping portion 8 in the terminal 7 is held by the holding portion 66, and the positioning portion 68 is abutted against the distal end surface along the longitudinal direction of the terminal 7, thereby The terminal 7 can be positioned with respect to 60 with high accuracy. When the terminal 7 is about to extend in the longitudinal direction when the terminal 7 is crimped and the tip surface pushes the positioning portion 68, the positioning portion 68 is separated from the holding portion 66 against the biasing force of the biasing portion 70. For this reason, the terminal 7 can extend in the longitudinal direction. Accordingly, it is possible to allow the terminal 7 to extend along the longitudinal direction during crimping while making it possible to improve the positioning accuracy of the terminal 7.

  Moreover, when the crimping | compression-bonding operation | movement of the two terminals 7 is simultaneously performed with the one terminal crimping apparatus 10, it can hold | maintain, positioning the two terminals 7 to which the terminal holder 60 is crimped simultaneously. In particular, when the crimping operation of two terminals 7 is simultaneously performed by one terminal crimping device 10 and each terminal 7 is supplied as a single unit, as a positioning mode along the longitudinal direction, the positioning unit 68 is pushed. The mode of hitting is effective. Even in this case, when the terminal 7 is about to be stretched when the terminal 7 is crimped, the terminal 7 can be stretched against the urging force of the urging portion 70.

  Further, even when the terminal crimping device 10 is a type that is operated manually, particularly a so-called hand tool type that works by hand, it is possible to improve the positioning accuracy of the terminal 7 while the terminal 7 is in the longitudinal direction during crimping. Can be allowed to stretch along.

  Further, by supporting the electric wire 3 by the support jig 90, it is possible to improve the positioning accuracy of the electric wire 3 along the longitudinal direction.

{Second Embodiment}
Next, the terminal holder 160 which concerns on 2nd Embodiment, and the terminal crimping apparatus 110 provided with this are demonstrated. FIG. 13 is a side view showing the terminal crimping apparatus 110 according to the second embodiment. FIG. 14 is a plan view showing the terminal crimping apparatus 110 according to the second embodiment. In the description of the present embodiment, the same components as those described above are denoted by the same reference numerals, and the description thereof is omitted.

  The present embodiment is an example in which the terminal crimping device 110 is a type driven by a drive unit. Accordingly, here, the terminal crimping device 110 includes a driving main body 120 instead of the hand tool main body 20.

  The driving main body 120 includes a frame 122 and a driving unit 130. Further, here, the driving main body 120 includes a stage 124 and a guide 126. In the terminal crimping apparatus 110 according to the present embodiment, the terminal holder 160 and the mold are components of the upper unit 140 and the lower unit 150 that are attached to the drive main body 120.

  The drive unit 130 relatively moves the upper mold 42 and the lower mold 52 in the mold in the approaching / separating direction. Here, the drive unit 130 includes a drive source 132 and a transmission mechanism. The drive source 132 is fixed to the frame 122. The drive source 132 is configured by an actuator such as a cylinder or a motor. The transmission mechanism transmits the driving force of the drive source 132 to the upper mold 42 and causes the upper mold 42 to reciprocate with respect to the lower mold 52. The transmission mechanism includes a ram member 134 coupled to the upper unit 140, a cam mechanism (not shown) that is interposed between the ram member 134 and the drive source 132 and reciprocates the ram member 134.

  In the upper unit 140, the upper die 42 is guided by an upper die guide portion (not shown) similar to the upper die guide portion 44. In addition, the side surface of the adjustment shaft of the adjustment unit that can adjust the position of the upper mold 42 with respect to the lower mold 52 is brought into contact with the upper surface of the upper mold 42. For example, the side surface of the adjusting shaft is formed in a spiral shape whose diameter gradually changes with respect to the center. Thus, by rotating the adjustment shaft, the distance between the center of the adjustment shaft and the upper surface of the upper mold 42 can be adjusted, and thus the position of the upper mold 42 relative to the lower mold 52 can be adjusted.

  The stage 124 is formed in a square plate shape and is fixed to the frame 122. The stage 124 is located below the upper unit 140. The lower unit 150 is supported on the upper surface of the stage 124. A guide portion 126 is fixed to the upper surface of the stage 124.

  The lower unit 150 includes a lower mold 152, a terminal holder 160, and a support jig mounting portion 180. The support jig mounting portion 180 of the lower unit 150 is provided to be slidable in the longitudinal direction of the electric wire 3 with respect to the upper mold 42. Here, description will be made assuming that the support jig mounting portion 180 is integrally connected to the lower mold 152 and the terminal holder 160. Therefore, here, the lower mold 152 and the terminal holder 160 are integrated with the support jig mounting portion 180 so as to be slidable in the longitudinal direction of the electric wire 3 with respect to the upper mold 42. However, it is not essential that the terminal holder 160 is slidable in the longitudinal direction of the electric wire 3 with respect to the upper mold 42. Furthermore, it is not essential that the lower mold 152 is slidable in the longitudinal direction of the electric wire 3 with respect to the upper mold 42.

  As shown in FIG. 15, the main change with respect to the terminal holder 160 is that the base body 162 is formed in a substantially rectangular parallelepiped shape and can be easily placed on the stage 124. In addition, a third flat surface 162e that is recessed from the first flat surface 62c is formed on the upper surface 162b of the base body 162 in place of the chamfered and inclined guide surface 62e.

  The main change point of the lower mold 152 is that the protrusion 55 is formed in a shape omitted.

  The support jig mounting portion 180 is formed in a shape in which two rectangular parallelepipeds 181a and 181b having different sizes are arranged, and the support jig 190 is supported on the upper surface of the large rectangular parallelepiped 181a. The lower mold 52 is connected to the tip of the small rectangular parallelepiped 181b. At this time, a convex portion 183 that protrudes into the concave portion 198 formed in the support jig 190 protrudes from the upper surface of the large rectangular parallelepiped 181a. The convex portion 183 and the concave portion 198 are used for positioning the support jig 190 and the support jig mounting portion 180 in place of the convex portion 98 and the concave portion 83. In the example shown in FIG. 18, two convex portions 183 and concave portions 198 are provided along the longitudinal direction of the electric wire 3. Of course, two protrusions 183 and two recesses 198 may be provided along the width direction of the electric wire 3. Further, the support jig mounting unit 180 includes an operation unit 185 that is operated to be gripped when the operator moves the support jig mounting unit 180. For example, the operation unit 185 is formed in a U-shaped bar shape, and protrudes from a side surface of the large rectangular parallelepiped 181a.

  At this time, the support jig 90 and the support jig mounting portion 80 are fixed using magnets, but here, the support jig 190 and the support jig mounting portion 180 are the lock portion 186 and the lock receiver. It is fixed by the part 199. One of the lock part 186 and the lock receiving part 199 is fixed to the support jig 90, and the other is fixed to the support jig mounting part 80. For example, as the lock unit 186 and the lock receiving unit 199, it is conceivable to employ a lock mechanism such as a so-called snap lock.

  FIG. 16 is an exploded perspective view showing the support jig 190. A main change point of the support jig 190 mounted on the support jig mounting portion 180 is that the second member 194 is longer than the second member 94. At this time, unlike the first groove 195, the first groove 195 extends only to the position of the intermediate portion in the longitudinal direction of the second member 194. Similar to the second groove 96, the second groove 96 extends from one end of the second member 94 to the other end. In addition, as described above, the second member 94 has a recess 198 instead of the protrusion 98. Here, the recess 198 is formed in the shape of a through hole, but may be formed in a bottomed shape. Furthermore, a lock receiving portion 199 is formed on the second member 94.

  The guide part 126 restricts the movement of the support jig mounting part 180, here, the movement of the lower unit 150 including the support jig mounting part 180 and moving together. In particular, here, the guide part 126 restricts the moving direction of the lower unit 150 in one direction. The lower unit 150 is supported so as to be capable of reciprocating between the first position and the second position in the direction. The first position is a position where the lower mold 152 is located directly below the upper mold 42 as shown in FIGS. The crimping operation is performed with the lower unit 150 in this position. The second position is a position where the lower mold 152 is separated from the upper mold 42 as shown in FIGS. In a state where the lower unit 150 is in this position, it is preferable that the terminal 7 is set with respect to the terminal holder 160 and the support jig 190 that supports the electric wire 3 is set with respect to the support jig mounting portion 180. Thereby, when performing the setting of the terminal 7 and the support jig 190 that supports the electric wire 3, the upper unit 140, in particular, the upper mold 42 can be prevented from interfering. The guide portion 126 is formed in a U shape here and is fixed to the upper surface of the stage 124.

<Operation>
Next, a terminal 7 crimping operation example using the terminal crimping apparatus 110 will be described.

  First, as shown in FIGS. 17 and 18, the lower unit 150 is pulled out to the second position. In this state, the terminal 7 is set in the terminal holder 160 fixed to the terminal crimping device 110. Specifically, the two terminals 7 are inserted into the terminal accommodating recess 63a in a state where the opening / closing operation part 75 is operated to open the retaining part 72. Then, while the leading end surface of the terminal 7 is abutted against the positioning portion 68, the retaining portion 72 is closed and the distal end of the retaining portion 72 is hooked on the rear end of the mating connection portion 9. As a result, the terminal 7 is positioned and set on the terminal crimping device 110 with high accuracy. That is, when the terminal 7 is set in the terminal holder 160, the crimping portion 8 extending from the mating connection portion 9 held by the terminal holder 160 among the terminals 7 is placed on the lower mold 152, or the lower mold It comes to be located at a position slightly floating above 152.

  Next, the electric wire 3 is set in the terminal crimping device 110.

  In setting the electric wire 3 to the terminal crimping apparatus 110, first, the electric wire 3 is set on the support jig 190. Specifically, in the support jig 190, the first member 91 and the second member 194 are in a combined state in advance. In this state, the two electric wires 3 exposed at the tip of the twisted electric wire 2 are untwisted and inserted into each groove 93 a of the first member 91. Further, the intermediate portion of the twisted electric wire 2 is inserted into the second groove 196 of the second member 194. Thereby, the setting of the electric wire 3 to the support jig 190 is completed.

  When the setting of the electric wire 3 to the support jig 190 is completed, the support jig 190 on which the electric wire 3 is set is then attached to the terminal crimping device 110. Specifically, the convex portion 183 protruding from the upper surface of the support jig mounting portion 180 is received in the concave portion 198 formed in the second member 194 of the support jig 190. Thereby, the edge part of the electric wire 3 is mounted in the bottom part in the crimping | compression-bonding part 8, or comes to be located in the position which floated slightly with respect to the bottom part within the range settled between crimping pieces. In this state, the lock portion 186 provided on the support jig mounting portion 180 is locked to the lock receiving portion 199 provided on the second member 194. Thereby, the setting of the support jig 190 is completed.

  When the terminal 7 is set in the terminal holder 160 and the support jig 190 on which the electric wire 3 is set is mounted on the support jig mounting portion 180, the lower unit 150 is pushed into the first position. Thereby, the setting of the terminal 7 and the electric wire 3 to the terminal crimping apparatus 110 is completed. In this state, the crimp portion 8 of the terminal 7 is located between the upper die 42 and the lower die 152, and the electric wire 3 is located between the bottom portion of the crimp portion 8 and the upper die 42. If it will be in this state, an operator will drive the drive part 130 and will start crimping | compression-bonding operation | movement.

  Specifically, the operator drives the drive unit 130 by turning on a crimping start switch. At this time, the drive unit 130 is configured to drive one reciprocation, that is, one cycle. More specifically, for example, the ram member 134 is stopped near the top dead center, and when the crimping start switch is turned on, the ram member 134 receives the driving force of the driving source 132 and descends toward the bottom dead center. While the ram member 134 is moving from the top dead center to the bottom dead center, the upper die 42 contacts the crimping portion 8 of the terminal 7. As the transition of the ram member 134 proceeds, the deformation of the crimping portion 8 proceeds. When the ram member 134 reaches the bottom dead center, the pressing of the crimping portion 8 and the electric wire 3 by the upper die 42 and the lower die 152 is completed, and the crimping portion 8 is deformed into a desired shape.

  When the terminal 7 tries to extend in the longitudinal direction during this deformation, the tip surface of the terminal 7 presses the positioning portion 68. The positioning portion 68 receives the pressing force and moves away from the holding portion 66 against the urging force. Thereby, the terminal 7 can be extended in the longitudinal direction. The elongation of the terminal 7 is the same as that of the terminal crimping device 10.

  The ram member 134 that has reached the bottom dead center moves toward the top dead center as it is. And the drive of the drive part 130 stops in the state which the ram member 134 reached the top dead center.

  When the drive of the drive unit 130 stops, the terminal-attached electric wire 1 is taken out. Specifically, the operator pulls out the lower unit 150 to the second position. In this state, the support jig 190 on which the terminal-attached electric wire 1 is set is removed from the support jig mounting portion 180 while the retaining portion 72 of the terminal holder 160 is opened. And the electric wire 1 with a terminal as shown in FIG. 1 can be obtained by removing the electric wire 1 with a terminal from the support jig 190. FIG.

  According to this aspect, even in the case of the terminal crimping device 110 operated by the drive unit 130, it is possible to improve the positioning accuracy of the terminal 7, and allow the terminal 7 to extend along the longitudinal direction during crimping. Can do.

  Further, by supporting the electric wire 3 at the time of crimping by the support jig 190, the positioning accuracy of the electric wire 3 can be improved.

  Further, since the support jig mounting portion 180 is slidable, particularly here, the lower unit 150 is slidable, so that when the terminal 7 is manually supplied to the terminal holder 160, the support jig is supported. Supplying the tool mounting portion 180 in a state of moving in the longitudinal direction with respect to the upper mold 42 facilitates the supply operation.

{Modification}
So far, the terminal holders 60 and 160 have been described as holding the two terminals 7, but this is not an essential configuration. For example, the terminal holders 60 and 160 may hold one terminal 7. In this case, one electric wire 3 to be crimped to the terminal 7 may exist alone, or a plurality of electric wires 3 may exist integrally as in the twisted electric wire 2 described above. When the terminal holders 60 and 160 hold one terminal 7 and there are a plurality of wires 3 to be crimped together, it is natural that the terminals 7 are crimped one by one against the plurality of wires 3. Is done. For example, the terminal holders 60 and 160 may hold three or more terminals 7.

  In the above description, the holding portion 66 is described as being configured to surround the terminal 7, but this is not an essential configuration. For example, the holding portion may be a chuck portion that can chuck the terminal 7. Further, even when the holding portion surrounds the periphery of the terminal 7, the lid portion 64 may be omitted and the holding portion may be configured to surround three sides.

  In the above description, it has been described that one positioning portion 68 can be abutted against the tips of the plurality of terminals 7, but this is not an essential configuration. For example, a plurality of positioning portions that can be brought into contact with the tip of one terminal 7 may be provided.

  In addition, each structure demonstrated by said each embodiment and each modification can be suitably combined unless it mutually contradicts.

  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 1 Electric wire with a terminal 2 Twisted electric wire 3 Electric wire 4 Core wire 5 Insulation coating 6 Jacket 7 Terminal 8 Crimp part 8a Core crimp part 8b Cover crimp part 9 Opposite side connection part 10, 110 Terminal crimping device 22 Input part 23, 24 Rod-like handle part 30 Conversion part 32 Upper frame 34 Lower frame 36 Link 40, 140 Upper unit 42 Upper mold 43 Terminal deformation part 50, 150 Lower unit 52, 152 Lower mold 60, 160 Terminal holder 62, 162 Base 63 Recess 63a Terminal receiving recess 63b Positioning portion accommodating recess 63c Energizing portion accommodating recess 64 Lid portion 66 Holding portion 68 Positioning portion 70 Energizing portion 72 Stopping portion 73 Stopping plate portion 80, 180 Support jig mounting portion 90, 190 Electric wire support jig 91 First member 94 , 194 Second member 95, 195 First groove 96, 196 Second groove

Claims (7)

A terminal holder that holds the terminal while positioning it when crimping the terminal having the crimping part to the electric wire ;
A mold for sandwiching the terminal held by the terminal holder and crimping to the electric wire;
A support jig mounting portion that can be mounted so that an end portion of the electric wire supported by the support jig is positioned at a position corresponding to the mold, the support jig in a state of supporting the electric wire,
With
The terminal holder is
A holding part capable of holding a portion different from the crimping part in the terminal;
A positioning portion provided so as to be able to abut against a distal end surface along the longitudinal direction of the terminal held by the holding portion, and to be movable toward and away from the holding portion;
A biasing portion that biases the positioning portion in a direction approaching the holding portion;
A terminal crimping device . The terminal crimping device according to claim 1,
The terminal crimping apparatus , wherein the holding unit is capable of individually holding a plurality of the terminals arranged in a direction crossing the longitudinal direction. The terminal crimping device according to claim 1 or 2 ,
The terminal pressing device is capable of supporting the plurality of electric wires covered with one sheath so that each end exposed from the sheath is located at a position corresponding to the mold . The terminal crimping device according to any one of claims 1 to 3,
An input unit through which an operator can input force;
A conversion unit that converts the force input to the input unit into a force that relatively moves the upper mold and the lower mold in the mold in an approaching and separating direction; and
A terminal crimping apparatus. The terminal crimping device according to claim 4,
The input unit includes two bar-shaped handle portions that are formed so that an operator can hold them by hand and can be opened and closed.
The said conversion part is a terminal crimping | compression-bonding apparatus which converts the opening / closing operation | movement of the said 2 rod-shaped handle part into the relative movement to the approach / separation direction of the said upper mold | type and the said lower mold | type. The terminal crimping device according to any one of claims 1 to 3,
A terminal crimping apparatus, further comprising: a drive unit that moves the upper mold and the lower mold in the mold closer to and away from each other. The terminal crimping device according to claim 6 ,
The terminal crimping apparatus, wherein the support jig mounting portion is provided to be slidable in the longitudinal direction with respect to the upper mold.

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