JP2019212570A - Terminal crimping device and terminal crimping method - Google Patents

Abstract

To provide a terminal crimping device and a terminal crimping method, capable of suppressing an increase in cost while reducing mutual intervals of terminals to make a collective crimp connection to a wire.SOLUTION: A terminal crimping device 1 includes: a bending part 12 for bending an inter-terminal connecting part 214 to shorten terminal intervals L11 for at least one terminal set 23 while maintaining the shape of an inter-set connecting part 213 in a carrier 21 of a terminal connecting body 2; and a crimping part 13 for making a collective crimp connection of respective two terminals 22 to a covered conductor 31, the two terminals belonging to the terminal set 23 after bending.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a terminal crimping apparatus and a terminal crimping method for crimping and connecting each terminal of a terminal coupling body in which a plurality of terminals are coupled by a band-plate-like carrier to an electric wire.

  2. Description of the Related Art Conventionally, a technique is known in which a terminal coupling body in which a plurality of terminals are coupled by a strip-shaped carrier is supplied as a material, and each terminal in the terminal coupling body is crimped and connected to an electric wire (for example, see Patent Document 1). .)

  In the technique described in Patent Document 1, a plurality of terminals connected by a carrier are collectively crimp-connected to an electric wire. At this time, in recent years, with respect to electric wires arranged according to the terminal arrangement in a connector that is becoming smaller in size, in many cases, the mutual interval between terminals in a terminal connector supplied as a material is widened. For this reason, in the technique described in Patent Document 1, in order to make the mutual spacing of the terminals coincide with the arrangement interval of the electric wires prior to the crimping connection, the connecting portion positioned between the terminals in the carrier is bent and the terminal spacing is increased. Is supposed to be shortened.

JP 2010-003429 A

  Here, there are cases where a predetermined number of terminals, such as two, are provided for crimping connection from the terminal coupling body. In this case, the crimping connection is collectively performed for each predetermined number of terminals. At this time, if the terminal interval is shortened, the subsequent terminal may interfere with the device part that performs the crimping connection, and the crimping connection may be difficult. On the other hand, there is also a situation that the apparatus part for performing the crimping connection cannot be downsized so much in order to obtain a certain crimping force. For this reason, in order to avoid the interference as described above, for example, it is necessary to perform a crimping connection after separating a predetermined number of terminals to be crimped from subsequent terminals by cutting the terminal coupling body or the like. . Such an operation may complicate a terminal crimping apparatus that performs crimping connection collectively and increase the number of man-hours for the terminal crimping method, which may lead to an increase in cost.

  Accordingly, the present invention pays attention to the above problems, and a terminal crimping apparatus and a terminal crimping method capable of suppressing an increase in cost while shortening the mutual interval between terminals and performing a batch crimping connection to an electric wire. The purpose is to provide.

  In order to solve the above-described problems, the terminal crimping apparatus of the present invention crimps each terminal of a terminal coupling body in which a plurality of terminals are coupled to an electric wire so that each terminal extends from one side edge of a band plate-like carrier. A terminal crimping device to be connected, wherein when the plurality of terminals are divided into a plurality of terminal sets for each of two or more terminals adjacent to each other, the inter-set connecting portion located between the plurality of terminal sets in the carrier The bent portion that shortens the terminal interval by bending the inter-terminal connecting portion positioned between the two or more terminals in the carrier with respect to at least one terminal set while maintaining the shape of the bent, and bending by the bent portion And a crimping part that crimps and connects the two or more terminals belonging to the one terminal set collectively to the electric wire.

  In order to solve the above-mentioned problem, the terminal crimping method of the present invention is a method in which each terminal of a terminal coupling body in which a plurality of terminals are coupled so that each terminal extends from one side edge of a belt-like carrier A terminal crimping method for crimping and connecting the plurality of terminals to each other between the plurality of terminal sets in the carrier when the plurality of terminals are divided into a plurality of terminal sets for every two or more adjacent terminals. A bending step of shortening a terminal interval by bending an inter-terminal connecting portion positioned between the two or more terminals in the carrier with respect to at least one terminal set while maintaining a shape of the connecting portion; and the bending step A crimping step of collectively crimping and connecting each of the two or more terminals belonging to the one terminal set that have been bent by the method.

  In the terminal crimping apparatus and the terminal crimping method of the present invention, the crimping connection to the electric wire is performed collectively for two or more terminals belonging to one terminal set that have undergone bending of the inter-terminal connecting portion located between the terminals. . At this time, according to the terminal crimping apparatus and the terminal crimping method of the present invention, the bending is performed while the shape of the inter-set connecting portion located between the plurality of terminal sets is maintained. That is, the terminal subsequent to the terminal set to be crimped is separated from the terminal set to be crimped by a wide interval corresponding to the length of the unbent connecting portion between sets. For this reason, there is no need to consider interference with subsequent terminals for crimping connections, and it is possible to perform with sufficient space, so that the terminal assembly is accompanied by excessive downsizing of the crimping part and cost increase. No separation process is required. As described above, according to the terminal crimping apparatus and the terminal crimping method of the present invention, it is possible to suppress an increase in cost while shortening the mutual distance between the terminals and performing the crimping connection of the electric wires collectively.

It is a mimetic diagram showing a terminal crimping device concerning one embodiment of the present invention. It is a schematic diagram which shows the process performed by the terminal crimping apparatus shown by FIG. It is a schematic diagram which shows the internal operation | movement of the bending part shown by FIG. It is a figure which shows the terminal coupling body before and behind the bending process by the bending part shown by FIG.1 and FIG.3. It is a figure which shows the modification with respect to the bending | flexion in the bending part shown by FIG.1 and FIG.3.

  Hereinafter, an embodiment of the present invention will be described.

  FIG. 1 is a schematic view showing a terminal crimping apparatus according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing processing performed by the terminal crimping apparatus shown in FIG.

  In the terminal crimping apparatus 1 according to this embodiment, each terminal 22 of the terminal coupling body 2 in which a plurality of terminals 22 are coupled by a carrier 21 is crimped and connected to a pair of covered electric wires 31 (electric wires) that are core wires of the multicore cable 3. It is a device to do.

  In the present embodiment, the multicore cable 3 is a two-core cable, and a pair of covered electric wires 31 are covered with an insulating sheath 32. The insulating sheath 32 is removed at one end of the multi-core cable 3 to expose the pair of covered electric wires 31, and the covering of the end of each covered electric wire 31 is removed to expose the conductor portion 311. The terminal 22 is crimped and connected to the end including the conductor portion 311 of each covered electric wire 31.

  The terminal connector 2 includes a plurality of terminals so that each of the terminal plates 2 extends from one side edge 211 of the band plate-like carrier 21 in the extending direction D11 perpendicular to the side edge 211 and along the in-plane direction. 22 is connected. Each terminal 22 is a female terminal accommodated in a connector (not shown), and includes a cylindrical electrical connection portion 221 into which a mating male terminal is inserted and connected, a conductor crimping portion 222, a covering crimping portion 223, It is equipped with. The conductor crimping part 222 is crimped by being crimped to the conductor part 311 exposed at the end of the covered electric wire 31. The cover crimping part 223 is crimped by being crimped to the cover part adjacent to the conductor part 311. The terminal 22 is crimped and connected to the covered electric wire 31 by crimping these two crimping portions.

  The terminal connector 2 is wound around a reel (not shown), and is supplied to the terminal crimping device 1 from this reel. The terminal crimping apparatus 1 crimps and connects each terminal 22 connected to the carrier 21 by feeding the terminal coupling body 2 in a predetermined transport direction D12 to the covered electric wire 31. Here, in the present embodiment, the crimping of the terminals 22 is collectively performed on the pair of covered electric wires 31 in the multicore cable 3. The terminal crimping device 1 is positioned at the front end in the transport direction D12 when the crimping connection of the terminals 22 is divided into a plurality of terminal sets 23 for each of the two terminals 22 adjacent to each other in the terminal coupling body 2. Sequentially from the terminal set 23. Two terminals 22 belonging to each terminal set 23 are collectively crimped to a pair of covered electric wires 31. In addition, the two terminals 22 are separated from the carrier 21 together with the crimp connection.

  The terminal crimping device 1 includes a conveyance unit 11, a bending unit 12, a crimping unit 13, an electric wire setting unit 14, and a cutting unit 15.

  The transport unit 11 is a part that feeds the terminal connection body 2 from a reel (not shown) in the transport direction D <b> 12 and feeds each terminal set 23 to the bent part 12 or the crimping part 13. In the present embodiment, the carrier 21 in the terminal connector 2 is provided with a through hole 212 for conveyance. The transport unit 11 includes a transport claw 111 that fits into the through hole 212. In FIG. 1, the drive unit 11 other than the conveyance claw 111 is not illustrated for the conveyance unit 11. The conveyance part 11 conveys the terminal coupling body 2 to the conveyance direction D12 by moving the conveyance nail | claw 111 fitted to the through-hole 212 to the conveyance direction D12.

  The bent portion 12 shortens the terminal interval by bending the inter-terminal connecting portion 214 located between the two terminals 22 in the carrier 21 for one terminal set 23 fed by the transport portion 11. At this time, the inter-set connecting portion 213 positioned between the plurality of terminal sets 23 in the carrier 21 is maintained in its shape.

  FIG. 3 is a schematic diagram showing the internal operation of the bent portion shown in FIG. FIG. 4 is a view showing the terminal connection body before and after the bending process by the bending portion shown in FIGS. 1 and 3.

  The bent portion 12 includes a pressing portion 121 and a receiving mold 122. The pressing part 121 is a member having a rectangular cross-sectional shape perpendicular to the in-plane direction of the carrier 21 and along the transport direction D12. The pressing part 121 is lowered and pressed in the bending direction D13 in the drawing to the inter-terminal connecting part 214 in the carrier 21 of the terminal set 23 that has been sent in the transport direction D12. At this time, the receiving mold 122 is provided with a fitting groove 122a having a rectangular cross section to be fitted to the pressing portion 121, and the inter-terminal connecting portion 214 pressed by the pressing portion 121 is pressed into the fitting groove 122a. Accept 121. By being sandwiched between the pressing portion 121 and the fitting groove 122a, the inter-terminal connecting portion 214 is bent into a rectangular shape. In the present embodiment, the bending is performed so that a certain surface side is always convex among the front and back surfaces of the carrier 21. Due to the bending of the inter-terminal connecting portion 214, the distance between the terminals of the two terminals 22 belonging to the terminal set 23 is shortened from the pre-bending terminal distance L11 to the post-bending terminal distance L12. On the other hand, since the inter-set connecting portion 213 is not bent, the inter-set distance L13 between the adjacent terminal sets 23 is maintained as it is.

  The process performed in this bending part 12 becomes a bending process in the terminal crimping method executed by the terminal crimping apparatus 1 of the present embodiment.

  The terminal set 23 that has been bent by the bent portion 12 is sent to the crimping portion 13 by the transport portion 11 as shown in FIGS. 1 and 3.

  The crimping part 13 interferes with each of the two terminals 22 belonging to the terminal set 23 that has been sent in to the terminals 22 that are separated from the terminal set 23 by an inter-set distance L13 according to the length of the inter-set connecting part 213. Without crimping, it is crimped and connected to the covered electric wire 31 at once. The crimping portion 13 includes an anvil 131 and a crimper 132.

  The anvil 131 has two rows of support bases 131a that support the two terminals 22 from below. The transport unit 11 performs transport so that the two terminals 22 belonging to the terminal set 23 are placed on the two rows of support bases 131a. The bending by the bending portion 12 is a process of reducing the distance between the terminals of the two terminals 22 belonging to the terminal set 23 to the distance L12 between the terminals after bending, which matches the arrangement interval of the two rows of the support bases 131a. It has become.

  At this time, the arrangement interval of the two rows of support bases 131a in the anvil 131 coincides with the arrangement interval of the pair of covered electric wires 31 arranged at the time of crimping. And the arrangement | positioning space | interval of this covered electric wire 31 is a space | interval according to the terminal arrangement | sequence in the connector not shown in which the two terminals 22 after crimping are accommodated.

  The crimper 132 includes a conductor crimper 132a for crimping the conductor crimping portion 222 of the terminal 22 and a covering crimper 132b for crimping the coating crimping portion 223. The conductor crimper 132a and the covering crimper 132b are arranged from the front side to the back side in FIG. 1 according to the positions of the conductor crimping part 222 and the coating crimping part 223 in the terminal 22 on the support base 131a. They are arranged in the order of the crimpers 132a. The conductor crimper 132a is provided with two conductor concave molds 132a-1 for receiving the conductor crimping portions 222 of the two terminals 22 mounted on the two rows of support bases 131a. The covering crimper 132b is provided with two covering concave molds 132b-1 that receive the covering crimping portions 223 of the two terminals 22, respectively.

  When the ends of the two terminals 22 and the pair of covered wires 31 are set on the two rows of support bases 131a, the conductor crimper 132a and the covered crimper 132b are integrated, and the terminals 22 and the ends of the covered wire 31 are formed. Toward the crimping direction D14. By this lowering, the respective coating crimping portions 223 are accommodated in the respective coating concave molds 132b-1 of the coating crimper 132b, and the respective conductor crimping portions 222 are accommodated in the respective conductor concave molds 132a-1 of the conductor crimper 132a. After the fitting, the conductor crimper 132a and the coating crimper 132b continue to apply a constant pressing force in the crimping direction D14, so that the coating crimping part 223 and the coating crimping part 223 are crimped.

  In addition, the arrangement of the end portion of the covered electric wire 31 with respect to the terminal 22 set in the crimping portion 13 is performed by the electric wire setting portion 14.

  The electric wire setting unit 14 holds the portion of the insulating sheath 32 in the multi-core cable 3 so that the end portions of the pair of covered electric wires 31 exposed from one end face the crimping portion 13. Then, when the two terminals 22 belonging to one terminal set 23 are placed on the two rows of support bases 131a in the anvil 131 by the transport unit 11, they move in the setting direction D15 in FIG. This movement is performed until the conductor portion 311 at the ends of the pair of covered electric wires 31 is placed on the conductor crimping portions 222 of the two terminals 22.

  When the end setting of the pair of covered electric wires 31 by the electric wire setting part 14 is completed, the crimper 132 is lowered in the crimping direction D14 in the crimping part 13 and the crimping connection is performed.

  The process performed in the crimping part 13 is a crimping process in the terminal crimping method executed in the terminal crimping apparatus 1 of the present embodiment.

  Here, in this embodiment, the cutting part 15 which cuts off the two terminals 22 from the carrier 21 is arranged on the front side of the crimping part 13 in FIG. In addition, in FIG. 1, the cutting part 15 is shown with the dotted line so that the anvil 131 in the crimping | compression-bonding part 13 can be seen.

  The cutting part 15 includes an upper part 151 located on the upper side of the carrier 21 and a lower part 152 containing an upward blade located on the lower side of the carrier 21 and hitting the boundary between the carrier 21 and the terminal 22 from the back side. ing. The cutting part 15 is a so-called shear blade in which the upper part 151 is lowered in the same direction as the crimping direction D14 of the crimper 13 so that a cutting process by shearing is performed by an upward blade of the lower part 152. In the present embodiment, the lowering of the upper portion 151 is performed in synchronization with the movement of the crimper 132, and the two terminals 22 are separated from the carrier 21 at the timing of the crimping of the covering crimping portion 223 and the covering crimping portion 223. It is. As described above, the cutting portion 15 of the present embodiment separates the terminal 22 from the carrier 21 at almost the same time as the crimping by the crimping portion 13 at any point in time from the bending by the bending portion 12 to after the crimping by the crimping portion 13. It has become.

  In this cutting part 15, not only the cutting of the terminal 22 but also the cutting process for removing the carrier 21 after the terminal 22 is cut off in the terminal set 23 provided to the crimping part 13 together with the inter-set connecting part 213 that follows in the transport direction D12. Is also done. For this cutting process, the lower part 152 in the cutting part 15 is connected to the boundary between the inter-set connecting part 213 following the terminal set 23 provided to the crimping part 13 and the terminal set 23 further following from the back side. There is also a built-in upward blade. When the upper portion 151 is lowered, the carrier 21 is also cut along with the disconnection of the terminal 22.

  The process performed by the cutting unit 15 is a cutting process in the terminal crimping method executed by the terminal crimping apparatus 1 of the present embodiment.

  With the cutting by the cutting part 15, the crimping connection of the two terminals 22 in one terminal set 23 to the pair of covered electric wires 31 in one multi-core cable 3 is completed. Then, the conveyance part 11 conveys the terminal coupling body 2 to the conveyance direction D12, and sets the next terminal set 23 to the crimping | compression-bonding part 13. FIG. At this time, the terminal set 23 before being bent is set in the bent portion 12 and the inter-terminal connecting portion 214 is bent.

  In the terminal crimping apparatus 1 and the terminal crimping method according to the present embodiment, the crimping connection to the covered electric wire 31 is performed by two terminals belonging to one terminal set 23 that have undergone bending of the inter-terminal connecting portion 214 located between the terminals 22. This is performed for the terminals 22 at once. At this time, according to the terminal crimping apparatus 1 and the terminal crimping method according to the present embodiment, the bending is performed while the shape of the inter-set connecting portion 213 located between the plurality of terminal sets 23 is maintained. That is, the terminal 22 following the terminal set 23 to be crimped is separated from the terminal set 23 to be crimped by a wide interval corresponding to the length of the unbent inter-set connecting portion 213. For this reason, it is not necessary to consider interference with the subsequent terminal 22 for the crimping connection, and it can be performed with a sufficient space. Therefore, the crimping part 13 is forced to be downsized and the cost is increased. The separation process of the connection body 2 etc. becomes unnecessary. As described above, according to the terminal crimping apparatus 1 and the terminal crimping method of the present embodiment, it is possible to suppress an increase in cost while shortening the mutual distance between the terminals 22 and performing the crimping connection of the covered wires 31 collectively. it can.

  Further, according to the present embodiment, since the shape of the inter-set connecting portion 213 positioned between the plurality of terminal sets 23 is maintained, internal stress accumulated in the carrier 21 due to bending is reduced. The For this reason, the deformation | transformation of the curvature etc. which generate | occur | produce in the carrier 21 after bending | flexion resulting from an internal stress will also be reduced. Thereby, the terminal 22 can be crimped and connected to the covered electric wire 31 in a state where the positional deviation of the terminal 22 in the terminal set 23 to be crimped is suppressed.

  Here, examples of the multi-core cable 3 include a twisted cable in which a pair of covered electric wires 31 are twisted inside an insulating sheath 32, a shielded cable in which a shield is provided between the insulating sheath 32 and the covered electric wires 31, and the like. Is mentioned. These cables are high-frequency cables used for high-frequency signal transmission, and are twisted or shielded for the purpose of improving high-frequency characteristics by reducing noise. In such a high-frequency cable, the noise reduction effect is reduced for the exposed portion of the insulating sheath 32 removed, and as a result, the high-frequency characteristics of the high-frequency cable are reduced. For this reason, for the high-frequency cable, even if the covered electric wire 31 must be exposed to some extent for the crimping connection of the terminal 22 and the subsequent terminal insertion into the connector, the exposed length can be kept as short as possible. desirable.

  In this embodiment, since the distance between terminals is shortened about the terminal set 23 set to the crimping | compression-bonding part 13 as mentioned above, when a pair of covered electric wire 31 is exposed from the insulation sheath 32 and divided into two, it exposes Shorter length and distance between wires. For this reason, according to this embodiment, the terminal 22 can be crimped and connected to the covered electric wire 31 of the high-frequency cable while suppressing the deterioration of the high-frequency characteristics.

  In the present embodiment, the bent portion 12 bends the inter-terminal connecting portion 214 in a bending direction D13 that is a thickness direction intersecting the in-plane direction of the carrier 21, as shown in FIG. As described above, since the bending direction D13 is set to the thickness direction of the carrier 21, the bending can be easily performed as compared with the case where the bending direction D13 is bent along the in-plane direction of the carrier 21, for example. Further, the internal stress accumulated in the carrier 21 can be further reduced due to the ease of bending.

  Moreover, in this embodiment, the bending part 12 bends in the bending direction D13 in which a certain surface side is always convex among the front and back surfaces of the carrier 21. Thus, by making the bending direction D13 a fixed direction, the device configuration of the bent portion 12 can be simplified, and the cost of the terminal crimping device 1, that is, the cost required for crimping the terminal 22 can be reduced. It can be further suppressed.

  Next, a modified example of this embodiment will be described. In the following modification, the bent portion 12 in the present embodiment is a rectangular shape in which the cross-sectional shape along the longitudinal direction of the carrier 21 is downward as shown in FIGS. It is a modification with respect to bending so that.

  FIG. 5 is a view showing a modified example with respect to bending at the bent portion shown in FIGS. 1 and 3.

  FIG. 5 schematically shows the carriers 51, 52, 53, 54, 55, 56, 57, 58, 59 after bending in nine types of modifications. In FIG. 5, these carriers 51, 52, 53, 54, 55, 56, 57, 58, 59 are shown in a classification table classified by the bending direction and the bending shape. That is, with respect to the bending direction, the bending surface is different from that of the above-described embodiment, the bending direction is different from the top and the bottom, the bending direction that alternately changes the convex surface between the front and back surfaces of the carrier, and upward. A wide bending direction that is different in distance from the embodiment is shown. As for the bent shape, a rectangular bent shape, a V-shaped bent shape, and a U-shaped bent shape having the same rectangular cross section as the above-described embodiment are shown.

  In the first modification, the carrier 51 is bent so as to have a quadrangular bending shape in an upward bending direction D51 in which the upper surface side is convex. In the second modification, the carrier 52 is bent so as to have a V-shaped bending shape in the upward bending direction D51. In the third modification, the carrier 53 is bent so as to have a U-shaped bending shape in the upward bending direction D51.

  In the fourth modification, the carrier 54 is bent in bending directions D51 and D52 in which the convex surfaces between the adjacent terminal sets 543 are alternately changed. In other words, in the fourth modification, the bending portion 12 changes the bending directions D51 and D52 each time one terminal set 543 is bent. Further, in the fourth modified example, the bending is performed so that the bending shape becomes a square bending shape. In the fifth modification, the carrier 55 is bent so as to have a V-shaped bending shape in bending directions D51 and D52 that alternately change between adjacent terminal sets 553. In the sixth modification, the carrier 56 is bent so as to have a V-shaped bending shape in bending directions D51 and D52 that alternately change between adjacent terminal sets 563.

  In the seventh modification, the carrier 57 is bent so as to have a wide square bending shape in the upward bending direction D51. In the eighth modification, the carrier 58 is bent so as to have a wide V-shaped bent shape in the upward bending direction D51. In the ninth modification, the carrier 59 is bent so as to have a wide U-shaped bent shape in the upward bending direction D51.

  Even if the bent portion 12 is bent in any of the modified examples, as in the above-described embodiment, it is possible to reduce the mutual distance between the terminals 22 and perform the collective crimping connection of the covered electric wires 31 while reducing the cost. Needless to say, the rise can be suppressed.

  Here, in the fourth to sixth modified examples, each time the bending portion 12 bends with respect to one terminal set 543, 553, 563, the bending direction so that the convex surface of the front and back surfaces of the carrier 21 changes. D51 and D52 are to be changed. According to such a modification, by changing the bending directions D51 and D52 as described above, the direction of the internal stress accumulated in the carriers 54, 55, and 56 can be changed each time the bending is performed, thereby canceling each other. Thereby, deformations such as warpage caused by internal stress can be further reduced.

  In addition, embodiment described above and the 1st-9th modification only showed the typical form of this invention, and this invention is not limited to these. That is, various modifications can be made without departing from the scope of the present invention. Of course, such modifications are included in the scope of the present invention as long as the terminal crimping apparatus and the terminal crimping method of the present invention are configured.

  For example, in the above-described embodiment and the first to ninth modifications, as an example of the terminal crimping apparatus and the terminal crimping method according to the present invention, two terminals 22 are used as a terminal set 23 and two terminals 22 are batched together. The terminal crimping apparatus 1 and the terminal crimping method for crimping connection are illustrated. However, the terminal crimping apparatus and the terminal crimping method referred to in the present invention are not limited to these. In the terminal crimping apparatus and the terminal crimping method according to the present invention, the number of terminals belonging to one terminal set can be arbitrarily determined as long as the terminals are collectively crimped and connected using two or more terminals as a terminal set. Can be set to

  Moreover, in embodiment mentioned above and the 1st-9th modification, as an example of the terminal coupling body said to this invention, the terminal coupling body 2 by which the several terminal 22 which is each a female type terminal was connected with the carrier 21 is. Illustrated. However, the terminal connector referred to in the present invention is not limited to this. The terminal connection body referred to in the present invention may be one in which a plurality of terminals each of which is a male terminal are connected by a carrier.

  Further, in the above-described embodiment and the first to ninth modifications, as an example of the bending portion and the bending step referred to in the present invention, the bending portion 12 and the bending step for bending one terminal set 23, 543, 553, 563. Is illustrated. However, the bent portion and the bending process referred to in the present invention are not limited to these. The number of terminal sets to be bent can be arbitrarily set as long as the bending portion and the bending step referred to in the present invention bend the inter-terminal connecting portion with respect to at least one terminal set.

  In the fourth to sixth modifications described above, as an example of the bent portion and the bending process referred to in the present invention, the bending directions D51 and D52 are changed every time one terminal set 543, 553, and 563 is bent. Illustrated. However, the method of changing the bending direction in the bending portion and the bending step according to the present invention is not limited to this. This method of changing the bending direction is such that when three or more terminals belong to one terminal set and there are two or more inter-terminal connection portions, the bending direction is changed each time one inter-terminal connection portion is bent. It may be a thing.

  For example, in the above-described embodiment and the first to ninth modifications, as an example of the cutting part, the cutting part 15 that detaches the terminal 22 from the carrier 21 substantially simultaneously with the crimping connection of the terminal 22 is illustrated. However, the cutting portion referred to in the present invention is not limited to this. As long as the cutting part according to the present invention is such that the terminal is separated at any point in time from the bending by the bending part to after the crimping by the crimping part, the separation timing can be appropriately set. Also, for this separation, the terminal may be separated from the carrier in a single process, or may be separated in two steps as follows. That is, for example, the terminal set to be crimped may be separated from the subsequent terminal set at the first timing after the bending and before the crimping, and then the terminal may be separated at any time after the crimping. .

DESCRIPTION OF SYMBOLS 1 Terminal crimping apparatus 2 Terminal coupling body 3 Multi-core cable 11 Conveying part 12 Bending part 13 Crimping part 14 Electric wire set part 15 Cutting part 21, 51, 52, 53, 54, 55, 56, 57, 58, 59 Carrier 22 Terminal 23, 543, 553, 563 Terminal set 31 Insulated wire 32 Insulating sheath 111 Conveying claw 121 Pressing part 122 Receiving mold 122a Fitting groove 131 Anvil 131a Support base 132 Crimper 132a Conductor crimper 132a-1 Conductor recessed mold 132b Covered crimper 132b-1 Covering concave part 211 One side edge 212 Through hole 213 Connecting part 214 Connecting part 221 Electrical connecting part 222 Conductor crimping part 223 Covering crimping part 311 Conductor part D11 Extending direction D12 Conveying direction D13, D51, D52 Bending Direction D14 Crimping direction D15 How to set Direction L11 Distance between terminals before bending L12 Distance between terminals after bending L13 Distance between sets

Claims (5)

A terminal crimping device that crimps and connects each terminal of a terminal coupling body in which a plurality of terminals are coupled so that each extends from one side edge of a band-plate-shaped carrier,
When the plurality of terminals are divided into a plurality of terminal sets for each of two or more terminals adjacent to each other, at least one of the inter-set connecting portions located between the plurality of terminal sets in the carrier is maintained. For one terminal set, a bent part that shortens a terminal interval by bending an inter-terminal connecting part located between the two or more terminals in the carrier;
A crimping part that collectively crimps and connects the two or more terminals belonging to the one terminal set that have undergone bending by the bending part;
A terminal crimping apparatus comprising:   The terminal crimping device according to claim 1, wherein the bent portion bends the inter-terminal connecting portion in a thickness direction of the carrier.   The terminal crimping apparatus according to claim 2, wherein the bent portion bends so that a constant surface side is always convex among both front and back surfaces of the carrier.   The bending portion is bent while changing the convex surface of the front and back surfaces of the carrier every time the one terminal set is bent or each time the one inter-terminal connecting portion is bent. The terminal crimping apparatus according to claim 2. A terminal crimping method for crimping and connecting each terminal of a terminal coupling body in which a plurality of terminals are coupled so that each extends from one side edge of a band-plate-shaped carrier,
When the plurality of terminals are divided into a plurality of terminal sets for each of two or more terminals adjacent to each other, at least one of the inter-set connecting portions located between the plurality of terminal sets in the carrier is maintained. For one terminal set, a bending step of bending the inter-terminal connecting portion positioned between the two or more terminals in the carrier to shorten the terminal interval;
A crimping step of collectively crimping and connecting each of the two or more terminals belonging to the one terminal set that has been bent by the bending step;
A terminal crimping method characterized by comprising:

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