JP7222773B2 - Terminal crimping device, twisted cable terminal processing device, crimp connection method, and twisted cable terminal processing method - Google Patents

Description

The present invention relates to, for example, a terminal crimping device for crimping a terminal to an end of a twisted cable for vehicle use, a twisted cable terminal processing device, a crimping connection method, and a twisted cable terminal processing method.

For example, in order to connect a terminal to an end of a twisted cable covered with a sheath, generally, a cutting process for cutting the twisted cable, a sheath stripping process for removing the sheath of the twisted cable, an exposed electric wire (core wire) An untwisting step of untwisting the wires, a core wire coating stripping step of removing the insulating coating of the wires, and a terminal connecting step of connecting the terminals to the conductors of the wires are performed.

Further, the untwisting process of untwisting the electric wires is a process of separating the electric wires, for example, in order to secure an interval for crimp connection of terminals to the ends of the electric wires in a pair configuration or a quad configuration.
The length of untwisting in the untwisting process is preferably as short as possible because noise resistance is lowered, and in CAN (controller area network), which is an in-vehicle network, a relatively long length of 40 mm to 50 mm is allowed. Therefore, the work of crimping the connection of the terminals and the work of accommodating the twisted cable with the terminals connected to it in the connector housing could be performed relatively without any trouble.

However, in the in-vehicle high-speed Ethernet (registered trademark) communication standard such as OABR (OPEN Alliance BroadR-Reach), the untwisting length is set shorter than in the case of CAN.
If the untwisted length is short, the range in which the terminal can move becomes narrower, in other words, the degree of freedom decreases. There was a risk of defects.

In view of this, Patent Literature 1 proposes a crimping device that divides and crimps two wires.
Specifically, in the crimping device described in Patent Document 1, a separator is provided between the wire crimper and the insulation crimper. It is said that proper crimping connection can be achieved by positioning and crimping connection.

However, since the separator provided between the wire crimper and the insulation crimper enters between the two wires and widens the gap during the press-down process for crimping and connecting the terminals, There is a concern that connection failure may occur due to the other wire being caught in the other wire.

JP 2018-106812 A

Accordingly, the present invention provides a terminal crimping device, a twisted cable terminal processing device, a crimping connection method, and a twisted cable terminal processing method that can reliably crimp-connect a terminal to an end of an electric wire even if the untwisted length is short. intended to provide

The present invention is a terminal crimping device having a crimping section for crimping and connecting a terminal to an end of an electric wire of a twisted cable, wherein the electric wire to which the terminal is crimped is directed toward the crimping section and the terminal is crimped to the crimping connection. A direction regulating portion is provided closer to the electric wire than the crimping portion for sorting and regulating the electric wires other than the crimping portion so that the electric wires are separated from the crimping portion. A pre-crimping wire regulating portion that regulates, a crimped wire regulating portion that faces the crimping portion and regulates the direction of the wire connected to the terminal, and a post-crimping wire regulating portion that regulates the direction of the wire connected to the terminal. are arranged in this order, and the direction regulating portion is configured in a groove shape capable of accommodating the electric wire, and the electric wire accommodated in the direction regulating portion configured in the groove shape is directed toward the crimping portion and a wire holding portion for holding the wire housed in the crimping wire regulating portion for connecting the terminal, wherein the wire housed in the pre-crimping wire regulating portion or the post-crimping wire regulating portion holds the wire. It is characterized in that it is not held by the holding part .

The present invention also provides a crimping connection method for crimping and connecting a terminal using a terminal crimping device having a crimping portion at the end of a wire of a twisted cable, wherein the direction of the wire to which the terminal is not connected is regulated. A pre-crimping wire regulating part, a crimping wire regulating part facing the crimping part for regulating the direction of the wire connecting the terminal, and a post-crimping wire regulating part for regulating the direction of the wire to which the terminal is connected, By the direction regulating portions arranged in this order, the directions of the two electric wires are sorted so that one faces the crimping portion and the other is separated from the crimping portion, and the directions of the electric wires are regulated, and the electric wires are accommodated. Among the electric wires accommodated in the direction restricting portion configured in a groove shape, the electric wire accommodated in the crimping electric wire restricting portion connecting the terminal toward the crimping portion is crimped while being held by the electric wire holding portion. The electric wire connected and housed in the pre-crimping wire restricting portion or the post-crimping wire restricting portion is not held by the wire holding portion.

The above-mentioned direction regulating portion may distribute the electric wires in at least two directions, and may distribute the electric wires in the same number as the number of electric wires. .
According to the present invention, the terminal can be securely crimped to the end of the electric wire even if the untwisted length is short.

More specifically, the directions of the ends of the two electric wires in the twisted cable can be controlled by dividing them into two by the direction regulating portion, and one of the two electric wires divided into two can be controlled by the crimping portion. Since the direction is regulated so as to face the direction, even if the untwisted length is short, the terminal can be reliably crimped and connected to the end of the electric wire at the crimping portion.
Also, a twisted cable includes a plurality of (basically an even number) of wires, with or without a sheath. In other words, the direction of the tip of the electric wire exposed by removing the sheath may be sorted.

As an aspect of the present invention, the direction regulating portion is a pre-crimping wire regulating portion that regulates the direction of the wire to which the terminal is not connected, and the direction of the wire that faces the crimping portion and is connected to the terminal is regulated. A crimped wire restricting portion and a post-crimping wire restricting portion that restricts the direction of the wire to which the terminal is connected may be arranged in this order.

Further, as an aspect of the present invention, the direction regulating portion includes a pre-crimping wire regulating portion that regulates the direction of the wire to which the terminal is not connected, and a wire regulating portion that faces the crimping portion and regulates the direction of the wire that connects the terminal. and a post-crimping wire regulating portion for regulating the orientation of the wire to which the terminal is connected are arranged in this order. The terminal is crimp-connected by the crimping portion in a state where the electric wire of is regulated by the crimping electric wire regulating portion, and the other electric wire to which the terminal is crimped is regulated by the after-crimping electric wire regulating portion, and one of The terminal may be crimp-connected by the crimping portion while the electric wire is regulated by the crimping electric wire regulating portion.

According to the present invention, even if the untwisted length is short, the terminal is more reliably crimped to the end of the electric wire while the direction of the electric wire is regulated by the direction regulating portion without twisting the twisted cable before crimping connection. can be connected.

More specifically, by using the direction regulating portion in which the pre-crimping wire regulating portion, the crimping wire regulating portion, and the post-crimping wire regulating portion are arranged in this order, one of the wires is regulated by the pre-crimping wire regulating portion. After crimping and connecting the terminal by the crimping portion in a state where the other wire is regulated by the crimping wire regulating portion, the direction of the twisted cable is changed, and the other terminal to which the terminal is crimped is changed. The wire can be regulated by the wire regulating portion after crimping, and the terminal can be crimp-connected by the crimping portion while one of the wires is regulated by the crimping wire regulating portion.

Further, as an aspect of the present invention, the direction regulating portion is configured in a groove shape capable of accommodating the electric wire, and among the electric wires accommodated in the direction regulating portion configured in the groove shape, the direction is directed toward the crimping portion, An electric wire holding portion may be provided for holding the electric wire for connecting the terminal.

Further, as an aspect of the present invention, among the electric wires accommodated in the direction regulating portion configured in a groove shape capable of accommodating the electric wires, the electric wires facing the crimping portion and connecting the terminals are held by the electric wire holding portion. It may be connected by crimping.

The electric wire holding portion includes a holding portion that presses and holds the electric wire housed in the direction regulating portion formed in a groove shape from outside the groove, and a holding portion that holds the electric wire housed in the direction regulating portion formed in a groove shape as the direction regulating portion. It may be configured by a holding portion or the like that is fixed and held outside the portion.

According to the present invention, the terminal can be crimped and connected to the end of the electric wire more reliably.
Specifically, after the electric wire is accommodated in the direction restricting portion configured in a groove shape capable of accommodating the electric wire, the electric wire is moved to the crimping portion, and the electric wire to be connected to the terminal is held by the electric wire holding portion while the electric wire is crimped. Since the crimping connection is performed at the crimping portion, the terminal can be more reliably crimped to the end of the electric wire without the electric wire to be connected being displaced with respect to the crimping portion.

In addition, since the electric wire that is accommodated in the groove-shaped direction restricting portion but is not to be connected is not held by the electric wire holding portion, the crimping portion acts when crimping and connecting the terminal to the electric wire that is not to be connected by the crimping portion. No load. In other words, as in the case where the wire holding portion holds not only the wire to be connected but also the wire to be connected, the load acting when the terminal is crimped and connected by the crimping portion passes through the wire to be connected. Since there is no effect on the wire that is not the object of connection, the terminal can be crimped and connected to the end of the wire that is the object of connection while preventing deformation of the wire that is not the object of connection.

Further, as an aspect of the present invention, a carrier cutter for cutting a connecting portion between the terminal and the carrier in the chain terminal in which the terminal is connected to the belt-shaped carrier at a predetermined interval is provided closer to the electric wire than the crimping portion. may be

The direction restricting portion may be provided on the upper portion of the carrier cutter, and the depth of the direction restricting portion may correspond to the vertical displacement when the carrier cutter cuts the connecting portion of the chain terminal. It may be formed with a depth equal to or greater than the sum of the radii of the electric wire to be crimped, or to a depth equal to or greater than the outer diameter of the electric wire to be crimped.

Further, as an aspect of the present invention, a carrier cutter that moves downward cuts a connecting portion between the terminal and the carrier of the chain terminal, in which the terminals are connected to the belt-shaped carrier at a predetermined interval, and the carrier cutter moves downward. The wire may be connected by crimping while the direction of the electric wire is restricted by a direction restricting portion provided on the upper portion of the wire.

According to the present invention, the terminal cut in the carrier can be crimp-connected to the end of the wire while the direction of the wire is regulated by the direction regulating portion provided on the upper portion of the carrier cutter.
More specifically, the carrier cutter moves downward to cut the connecting portion between the terminal of the chain terminal connected to the belt-shaped carrier by the connecting portion and the carrier. The terminal separated from the carrier by the carrier cutter can be crimp-connected to the end of the electric wire more reliably while the orientation of the electric wire is regulated by the direction regulating portion.

At this time, by making the depth of the direction restricting portion equal to or greater than the outer diameter of the wire, it is possible to prevent the wire from coming off the direction restricting portion during crimping. Further, the depth of the direction restricting portion is set to a depth equal to or greater than the sum of the vertical displacement when the carrier cutter cuts the connecting portion of the chain terminal and the radius of the wire to be crimped, so that during carrier cutting Therefore, it is possible to suppress the electric wire from coming off the direction restricting portion. It is preferable that the depth of the direction restricting portion satisfies at least one of the above conditions.

The present invention also provides a twisted cable terminal processing apparatus for processing the terminal of a sheathed twisted cable in which a twisted cable serving as a core electric wire is sheathed with a sheath, wherein the sheath is removed from the terminal of the sheathed twisted cable. The stripping section, the terminal coating removal section for removing the coating of the terminal of the core electric wire, and the above-described terminal crimping device are twisted cable terminal processing devices arranged in this order from the upstream side.

Further, the present invention further comprises a coating stripping step of untwisting the wires of the twisted cable and removing the insulation coating from the ends of the wires, and a crimping connection step of crimping and connecting the terminals to the wires by the crimping connection method described above. , in this order.

Further, the present invention includes a sheath stripping step of removing the sheath from the end portion of a sheathed twisted cable that is sheathed, and untwisting the wire exposed by removing the sheath to remove the insulating coating from the end of the wire. It is characterized by a twisted cable terminal processing method in which a step of stripping the wire covering and a step of crimping and connecting the terminals to the wires by the crimping connection method described above are carried out in this order.

According to the present invention, a terminal is reliably crimp-connected to an end of the wire while the direction of the wire from which the insulation coating is removed from the end of the twisted cable is regulated by a direction regulating portion provided on the upper portion of the carrier cutter. can be done.

Further, the wire exposed by removing the sheath at the terminal portion of the sheathed in-vehicle twisted cable with the sheath is untwisted, and the direction of the wire from which the insulation coating of the terminal is removed is changed by the carrier cutter. The terminal can be reliably crimped and connected to the end of the electric wire in a state of being regulated by the direction regulating portion provided at the top.

The term "end processing" refers to the general processing and processing of twisted cable ends, and includes not only the process of crimping and connecting the terminal to the end of the electric wire, but also the process of housing the connected terminal in the connector housing. shall be taken.

After the sheath stripping step and before the terminal connecting step, an orientation adjustment step of adjusting the orientation of the wire in the circumferential direction to be suitable for terminal connection, and a straightening step of straightening the twist of the wire. Furthermore, a tip position adjustment step of aligning the longitudinal positions of the tips of the wires and a length adjustment step of adjusting the length of the wires protruding from the end of the sheath to an appropriate length may be performed.

In the direction adjustment process, remove the insulation coating of the wire and connect the terminals after making the direction of the wire in the circumferential direction suitable for terminal connection.Even if the untwisted length is short, the insulation coating is removed. and terminal connection work can be performed with high accuracy. Also, the connected terminals can be accommodated in the connector housing without changing the attitude.

In addition, by performing the process of correcting the twist of the electric wire, the twist of the electric wire is corrected and straightened, so that the work of removing the insulation coating of the electric wire and connecting the terminal can be performed at the desired position, The desired dimensions can be achieved with higher accuracy.

By performing the tip position adjusting step, the terminal can be crimped and connected to the electric wire with high accuracy, and can be easily housed in the housing. Further, by performing the length adjustment process, the protruding length of the electric wire is set to an appropriate length, so that the terminals can be crimped and connected with high accuracy, and noise resistance can be ensured.

In addition, by performing the tip position adjustment step and/or the length adjustment step after performing the habit correction step, the twist is corrected and the length of the straight wire is adjusted. can be adjusted to fit.

The present invention provides a terminal crimping device, a twisted cable terminal processing device, a crimping connection method, and a twisted cable terminal processing method that can reliably crimp-connect a terminal to an end of an electric wire even if the untwisted length is short. intended to

The schematic perspective view which shows the structure of the terminal crimping apparatus which manufactures a vehicle-mounted twisted cable with a terminal. 1 is a perspective view of an in-vehicle twisted cable with terminals and a connector housing; FIG. The top view of a vehicle-mounted twisted cable. The flowchart of the manufacturing method of the vehicle-mounted twisted cable with a terminal. The schematic block diagram of the manufacturing apparatus of a vehicle-mounted twisted cable with a terminal. The perspective view of an electric wire regulation unit. Explanatory drawing of an electric wire regulation unit. Explanatory drawing which shows a carrier cut. The perspective view of the state before setting a vehicle-mounted twisted cable with respect to an electric wire control unit. Explanatory drawing of the state which the vehicle-mounted twisted cable was set with respect to an electric wire control unit, and the holding state. Explanatory drawing of the state which the vehicle-mounted twisted cable was set with respect to an electric wire control unit, and the holding state. Explanatory drawing of the state which the vehicle-mounted twisted cable was set with respect to an electric wire control unit, and the holding state.

One mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows a schematic perspective view showing the configuration of a terminal crimping device 1 for manufacturing an in-vehicle twisted cable 100 with a terminal, FIG. 2 shows a perspective view of the in-vehicle twisted cable 100 with a terminal and a connector housing 103, and FIG. FIG. 4 shows a plan view of the cable 101, FIG. 4 shows a flow chart of the manufacturing method of the in-vehicle twisted cable 100 with terminals, and FIG.

6 shows a perspective view of the wire regulating unit 6, and FIG. 7 shows an explanatory diagram of the wire regulating unit 6. As shown in FIG. Specifically, FIGS. 6, 7(a), and 7(b) are perspective views of the wire regulating unit 6 composed of the carrier cutter 60, the cutoff punch 70, and the wire holder 80. The configuration of the carrier cutter 60 is shown in FIG. 6 illustrates the cutoff punch 70 and the wire holding portion 80 in a transparent state, and FIG. 7B, which illustrates the configuration of the wire holding portion 80, the carrier cutter 60 and the cutoff punch 70 are shown in a see-through state.

FIG. 8 shows an explanatory diagram of carrier cutting. Specifically, FIG. 8(a) shows a perspective view of a state before the carrier cutter 60 of the wire regulating unit 6 cuts the connection portion Xb that connects the terminal 102 to the carrier Xa, and FIG. 8(b) shows the carrier cutter 60. is moved downward by a cut-off punch 70 to cut the connecting portion Xb. 8 to 11, the terminal 102 connected to the terminal band X by the carrier Xa on the upstream side of the wire regulating unit 6 is shown only partially on the terminal band X side, and is cut off and placed on the anvil portion 3. Illustration of the placed terminals 102 is omitted.

FIG. 9 shows a perspective view of the state before setting the in-vehicle twisted cable 101 to the wire regulating unit 6, and FIGS. is an explanatory diagram of.

Specifically, FIG. 10(a) shows a core wire 105a (referred to below as a first connection core 105a), the on-vehicle twisted cable 101 is set in the direction restricting portion 90 provided on the upper surface 60a of the carrier cutter 60. FIG. 10 is a perspective view showing a state in which a wire holding portion 80 holds a pre-connected core wire 105a in the in-vehicle twisted cable 101. FIG.

Further, FIG. 11A shows a core wire 105b for connecting the terminal 102 later of the two core wires 105 of the in-vehicle twisted cable 101 in which the terminal 102 is connected to the front connection core wire 105a (hereinafter referred to as a rear connection core wire). 105b), and FIG. 105b is a perspective view showing a state in which the wire holding portion 80 holds the wire 105b.

12(a) shows a plan view of the state of FIG. 9, FIG. 12(b) shows a plan view of the state of FIG. 10(a), and FIG. 12(c) shows a plan view of the state of FIG. 11(a). Figure shows.
The width direction of the terminal crimping device 1 is indicated by W, the right side is indicated by Wr, and the left side by Wl. The vertical direction (height direction) is indicated by H, the upward direction by Hu, the downward direction by Ud, the depth direction by D, the near side by Df, and the far side by Db.

First, the terminal-equipped cable 100 manufactured by the vehicle-mounted twisted cable manufacturing apparatus 31 and the vehicle-mounted twisted cable 101 constituting the terminal-equipped cable 100 will be described.
As shown in FIGS. 2 and 3, the in-vehicle twisted cable 100 with terminals (hereinafter referred to as "cable 100 with terminals") is an in-vehicle twisted cable 101 (hereinafter referred to as "twisted cable 101") that constitutes the cable with terminals 100. ) is connected to a terminal 102 accommodated and held in a connector housing 103 .

Although the terminal 102 has both a male type and a female type, the illustrated example illustrates the female type terminal 102 .
The twisted cable 101 is used to provide noise immunity, and the core electric wires 105 configured as a pair are twisted at a predetermined pitch, and the sheath 104 is provided around the twisted core electric wires 105. It is an armored, sheathed twisted cable.

The core electric wire 105 is configured by covering the conductor 106 with an insulating coating 107, and the sheath 104 that covers the core electric wire 105 that is stranded is classified into a filled type and a non-filled type. , any type of sheath construction.

Moreover, the core electric wire 105 is not limited to a pair as in the illustrated example, and may have two or more pairs of core electric wires 105 . In the illustrated example, the unshielded twisted cable 101 is shown because it is for vehicle use and needs to be lightweight, but the presence or absence of a shield does not matter.

In the terminal-equipped cable 100, the untwisted length of the twisted core electric wires 105 is set short as shown in FIG. For example, the untwisted length was about 40 mm to 50 mm in CAN (controller area network), but in OABR (OPEN Alliance BroadR-Reach: BroadR-Reach Automotive Ethernet (registered trademark) communication standard), it is about 10 mm to 20 mm. There is a need to. Here, the untwisted length L is the untwisted length of the core electric wire 105 that protrudes from the end of the sheath 104 and extends straight as shown in the twisted cable 101 in FIG. 3, and is set to 10 mm to 20 mm. .

The terminal 102 connected to the end of the core wire 105 of the twisted cable 101 is composed of an insulation barrel 102a fixed to the insulation coating 107 of the core wire 105 and a wire barrel 102b electrically conductively connected and fixed to the conductor 106. and a box portion 102c arranged on the distal end side of the barrel portion and capable of accommodating and connecting another terminal (a male terminal in this embodiment where the terminal 102 is a female terminal). there is

The terminal 102 configured in this way is connected in a direction orthogonal to one side edge of the strip-shaped carrier Xa via the connecting portion Xb, and is predetermined with respect to the length direction of the carrier Xa. A plurality of terminals 102 are arranged in parallel at intervals and form a terminal band X in which a large number of terminals 102 are chained in a band shape.

Such a terminal-equipped cable 100 is manufactured by a terminal-equipped twisted cable manufacturing apparatus 31 (hereinafter referred to as "manufacturing apparatus 31") shown in FIG.

Specifically, a sheath stripping step of removing the sheath 104 from the end of the twisted cable 101 to which the sheath 104 is armored, an untwisting step of untwisting the core electric wire 105, and a twisting process of the untwisted core electric wire 105. a length adjustment step of adjusting the length of the core wire 105 protruding from the end of the sheath 104 to an appropriate length; and a core wire coating stripping step of removing the insulation coating 107 from the end of the core wire 105. Then, an orientation adjustment step of adjusting the orientation of the core wire 105 in the circumferential direction to be suitable for terminal connection, and a terminal connection step of connecting the terminal 102 to the core wire 105 are performed in this order. If the untwisting process for untwisting the core electric wire 105 is provided before the terminal connection process, and the length adjustment process is provided after the sheath strip process, after the straightening process and before the terminal connection process. good. Note that the order of the above steps may be changed as appropriate.

The manufacturing apparatus 31 for manufacturing the terminal-equipped cable 100 in such a process removes the sheath 104 from the end of the twisted cable 101 in order from the upstream side of the conveying path 32 for sending the twisted cable 101, as shown in FIG. a sheath strip portion 33 that untwists the core wire 105 exposed by removing the sheath 104; A direction adjusting/tightening portion 35 for correcting the twist of the core electric wire 105, a length adjusting portion 36 for adjusting the length of the core electric wire 105 protruding from the end of the sheath 104 to an appropriate length, and a terminal of the core electric wire 105. A core wire coating stripping portion 37 for removing the insulating coating 107 and a terminal crimping device 1 for crimping and connecting the terminal 102 to the end of the core wire 105 are provided.

Next, the terminal crimping device 1 for crimping and connecting the terminal 102 to the core wire 105 will be described in detail. The conveying path 32, the sheath strip portion 33, the loosening portion 34, the adjusting and straightening portion 35, the length adjusting portion 36, and the core wire covering strip portion 37 may have conventional structures or other characteristic structures. However, detailed description thereof is omitted in this specification.

The terminal crimping apparatus 1 separates the terminal 102 connected to the carrier Xa through the connecting portion Xb in the terminal band X by cutting the connecting portion Xb with the carrier cutter 60 constituting the wire regulating unit 6, and separates the core wire. It is a device for crimping connection to the tip of 105 .

As shown in FIG. 1, the terminal crimping apparatus 1 has an anvil portion that substantially horizontally supports terminals 102 connected to one side edge of a carrier Xa on an apparatus main body 2 placed on a pressing device (not shown). 3 and a crimper portion 4 for crimping the terminal 102 in cooperation with the anvil portion 3 are provided above and below (see FIG. 1).

A wire regulating unit 6 having a carrier cutter 60 for cutting the connecting portion Xb of the terminal band X to separate the terminal 102 from the carrier Xa is provided on the front side Df of the anvil portion 3 in the device main body 2 .

The anvil part 3 provided on the lower side supports a carrier cutter 60 supporting the terminal 102 in the vicinity of the connecting part Xb and the insulation barrel 102a of the terminal 102 on the base 5 arranged in the lower part of the device main body 2. An insulation anvil (not shown because it is on the back side of the carrier cutter 60), a wire anvil (not shown because it is on the back side of the carrier cutter 60) that supports the wire barrel 102b of the terminal 102, and a box portion of the terminal 102 Anvil holders (parts visible as the anvil portion 3) that support 102c are arranged in this order.

The crimper part 4 provided on the upper side has a shank 10 arranged on the upper part of the device main body 2, a cutoff punch 70 for shearing the connection part Xb of the terminal 102 in cooperation with the carrier cutter 60, and a direction restricting part 90. A wire holding portion 80 for holding the accommodated core wire 105, an insulation crimper 12 for crimping the insulation barrel 102a of the terminal 102 in cooperation with the insulation anvil of the anvil portion 3, and a wire barrel 102b of the terminal 102. A wire crimper (not shown because it is located on the back side of the insulation crimper 12) for crimping in cooperation with the wire anvil, and a spacer (not shown) for substantially horizontally supporting the box portion 102c of the terminal 102 in cooperation with the anvil holder. ) are arranged in this order perpendicular to the conveying direction of the terminal conveying device 18, which will be described later.

The carrier cutter 60 is arranged at a position facing the insulation barrel 102a of the terminal 102, and slides up and down with respect to the holding groove 16a in the center and front side Df in the width direction W of the cut holder 16 arranged on the base 5. It is movably held and arranged below a cut-off punch 70, which will be described later.
Further, the carrier cutter 60 is constantly urged upward Hu by the restoring force of the coil spring 17 (see FIG. 1) compressed between the base 5 and the carrier cutter 60 .

An upper surface 60 a of the carrier cutter 60 is provided with a receiving portion 61 with which the contact portion 71 of the cutoff punch 70 abuts, and a direction restricting portion 90 that restricts the direction of the core electric wire 105 .
The receiving portion 61 is formed in a shape corresponding to the contact portion 71 of the cut-off punch 70 on the left side Wl of the upper surface 60a of the carrier cutter 60 in the width direction W, and protrudes upward from the upper surface 60a of the carrier cutter 60. is provided.

As shown in FIG. 6, the direction restricting portion 90 is a sheath concave portion 91 provided on the front side Df of the center in the width direction of the upper surface 60a of the carrier cutter 60, and is above the bottom surface of the sheath concave portion 91 and above the upper surface 60a. Concave groove-shaped accommodation grooves 92 (92a, 92b, 92c) and distribution convex portions 93 (93a, 93b) provided between the accommodation grooves 92 are provided.

The housing groove 92 has a groove shape capable of housing the core electric wire 105 exposed on the tip side from the terminal 102 of the twisted cable 101, and extends from the near side Df to the far side Db (where the anvil portion 3 and the crimper portion 4 are arranged) at the center in the width direction. A central housing groove 92b extending toward the front side), and a lateral housing that is arranged on both sides in the width direction W of the central housing groove 92b and forms a V-shape in plan view that spreads from the front side Df toward the back side Db. There are grooves 92a, 92c.

The side housing grooves 92a and 92c are formed in a groove shape with a rectangular cross section, and the central housing groove 92b has a lower portion that is arc-shaped corresponding to the outer circumference of the core wire 105, and a substantially V-shaped cross section that expands upward at the upper portion. It is formed in a groove shape that becomes a shape.

The central accommodation groove 92b configured in this manner is formed so that the directional angle in plan view direction is along the depth direction D (from the left front side to the right rear side in FIG. 6), and the side accommodation grooves 92a and 92c are formed in plan view. The direction angles of the directions are 30 degrees with respect to the depth direction D, respectively. Therefore, the lateral accommodation grooves 92a and 92c are formed in a direction that makes the intersection angle of 60 degrees in the planar view direction.

A distribution convex portion 93a is provided between the side accommodation groove 92a and the central accommodation groove 92b, and a distribution convex portion 93b is provided between the central accommodation groove 92b and the side accommodation groove 92c. The distribution convex portion 93 formed between the accommodation grooves 92 in this way has a plane in which the central accommodation groove 92b side is along the depth direction D and the lateral accommodation groove 92a (92c) side outside the width direction W is inclined. It is a substantially trapezoidal projection, and the outer corners of the upper surface in the width direction W are chamfered, and the front side Df of the upper portion is also chamfered so as to incline toward the front side Df. The distribution convex portion 93a and the distribution convex portion 93b formed in this manner are provided symmetrically with respect to the center in the width direction in plan view.

In the present embodiment, the accommodation groove 92 in the direction restricting portion 90 configured in this manner has a depth of the accommodation groove 92 (a vertical distance defined by the accommodation groove 92 and the distribution convex portion 93). , the depth is greater than the outer diameter of the wire to be crimped, or the depth is greater than the sum of the vertical displacement of the carrier cutter 60 and the radius of the wire to be crimped. At the position where the carrier cutter 60 is pushed downward Hd by being pressed by 70, the bottom of the accommodation groove 92 is formed at a height that substantially coincides with (or is substantially horizontal to) the upper surface of the insulation anvil.

A carrier guide groove 62 in which the carrier Xa of the terminal band X is guided in the conveying direction is formed horizontally in parallel with the conveying direction of the terminal conveying device 18 to be described later on the back side Db of the upper portion of the carrier cutter 60 . ing.

The carrier guide groove 62 is formed to have a dimension in the vertical direction H that accommodates the entire thickness of the carrier Xa, and is formed to have a dimension in the depth direction D that accommodates the entire lateral width of the carrier Xa (including the connecting portion Xb). ing. The carrier guide groove 62 is open on the far side and has a slight margin so that the terminal band X can be conveyed smoothly.

The shank 10 is held slidably in the vertical direction H on the upper portion of the apparatus main body 2, and the cutoff punch 70, the insulation crimper 12 and the wire crimper are vertically moved by a pressing device (not shown).

The cut-off punch 70 is held vertically slidably with respect to the front portion of the shank 10, and is formed in an inverted L shape in a plan view and in a lying L shape in a front view. are placed above and facing each other. Also, the restoring force of a coil spring (not shown) always urges the shank 10 in the direction of protruding downward Hd from the lower end of the shank 10 . A contact portion 71 that contacts the receiving portion 61 of the carrier cutter 60 protrudes from one side lower end portion of the cut-off punch 70 formed in an L-shape in a lying position when viewed from the front.

The electric wire holding portion 80 is arranged between the shank 10 and the cutoff punch 70 on the front side Df of the shank 10 and is held vertically slidably with respect to each of the shank 10 and the cutoff punch 70 .

The electric wire holding portion 80 has a horizontally long rectangular parallelepiped shape in the width direction W, and holds the core electric wire 105 in the central accommodation groove 92b by pressing the core electric wire 105 accommodated in the central accommodation groove 92b of the later-described direction restricting portion 90 from above. A holding protrusion 81 is provided.

In a state in which the core wire 105 is held in the central housing groove 92b by the holding projection 81, the gap between the wire holding portion 80 and the distribution projection 93 of the direction regulating portion 90 is filled with the core wire 105 to be crimped. Making it smaller than the outer diameter is preferable from the viewpoint of preventing the wires to be crimped from entering the central housing groove 92b. The same applies when the depth of the receiving groove 92 in the direction restricting portion 90 is shallower than the outer diameter of the core electric wire 105 to be crimped.

A recessed barrel crimping portion 121 for crimping the insulation barrel 102a of the terminal 102 toward the inside is formed at the center portion of the lower end side of the insulation crimper 12 .
Both inner wall surfaces of the barrel crimping portion 121 are formed in a planar shape that gradually narrows from the open portion on the lower end side to the closed portion on the upper end side, and the insulation barrel 102a of the terminal 102 gradually tapers inward. It is slanted at an angle to which it is drawn.

On the other hand, a recessed barrel crimping portion (not shown) for crimping the wire barrel 102b of the terminal 102 toward the inner side is also formed in the center portion of the lower end side of the wire crimper. Since the structure of the barrel crimping portion is substantially the same as that of the barrel crimping portion 121, detailed description thereof will be omitted.

A terminal conveying device 18 for feeding the terminals 102 of the terminal band X onto the anvil portion 3 is arranged on the upstream side portion of the anvil portion 3 (on the left side in FIG. 1).
The terminal conveying device 18 moves each terminal 102 of the terminal band X on the anvil part 3 composed of an insulation anvil, a wire anvil, and an anvil holder in conjunction with the operation of a press mechanism (not shown) that moves the crimper part 4 up and down. are intermittently supplied one by one.

The wire regulating unit 6 in the terminal crimping device 1 configured in this way will be described with reference to FIGS. 6 and 7. FIG.
The wire regulating unit 6 includes the above-described carrier cutter 60, the above-described direction regulating portion 90 provided on the upper portion of the carrier cutter 60, and the above-described direction regulating portion 90 disposed above the carrier cutter 60 for moving the carrier cutter 60 downward Hd. and the above-described wire holding portion 80 for holding the core wire 105 set in the direction restricting portion 90 .

As described above, the carrier cutter 60 is configured to be movable in the vertical direction H with respect to the base 5 while being urged upward by the coil spring 17. The cutoff punch 70 and the wire holder 80 are not shown. Each of them can be independently moved in the vertical direction H with respect to the shank 10 by the driving mechanism.
Therefore, the cut-off punch 70 and the wire holding portion 80 are configured to be movable in the vertical direction H relative to the carrier cutter 60 .

Next, a terminal connection process for connecting the terminal 102 to the core wire 105 by the terminal crimping apparatus 1 configured as described above will be described.
In the terminal connection step, the core wires 105 exposed by removing the sheath 104 from the ends of the twisted cables 101 in the previous step are untwisted, and the terminals are connected to the ends of the two core wires 105 from which the insulation coating 107 of the ends has been removed. 102 are crimped.
Specifically, the terminal 102 is connected to one of the two core wires 105, the pre-connection core wire 105a, and then the terminal 102 is connected to the other post-connection core wire 105b.

Therefore, first, as shown in FIG. 8A, the carrier cutter 60 positioned above the carrier Xa inserted into the carrier guide groove 62 is moved downward Hd by the cutoff punch 70 to cut the connecting portion Xb. and separate the terminal 102 from the carrier Xa (see FIG. 8B).

As described above, the terminal 102 separated from the terminal band X is not shown in FIGS. The terminal 102 is placed on the (see FIGS. 12(b) and 12(c)).

At this time, the carrier cutter 60 is moved downward Hd until the bottom of the receiving groove 92 in the direction restricting portion 90 is substantially level with the bottom of the terminal 102 .
Then, as shown in FIG. 9, the twisted cable 101 to which the terminal 102 is not connected to both core wires 105 is arranged on the front side Df of the wire regulation unit 6 where the carrier cutter 60 has been moved downward Hd by the cut-off punch 70. do. At this time, both core wires 105 to which the terminal 102 is not connected are oriented so as to form a V-shape in plan view at an angle of 30 degrees, although the untwisted length L exposed from the tip of the sheath 104 is short.

In the description of the present embodiment, among the core wires 105 oriented to have a V shape in plan view at an angle of 30 degrees, the core wire 105 on the right side in plan view is referred to as the pre-connected core wire 105a. The core wire 105 on the substitute side is used as the post-connection core wire 105b, and the terminal 102 is connected from the pre-connection core wire 105a on the right side in plan view.

Therefore, first, the twisted cable 101 is directed in the direction of the arrow R with respect to the wire regulating unit 6 as shown in FIGS. 9 and 12(a). By orienting the twisted cable 101 in the direction of the arrow R in this way, the pre-connection core wire 105a is oriented in the depth direction D, and the post-connection core wire 105b is oriented 30 degrees to the left in the width direction W with respect to the depth direction D. becomes.

In this state, the rear connection core wire 105b is accommodated in the side accommodation groove 92a of the direction restricting portion 90, and the front connection core wire 105a extending in the depth direction D is accommodated in the central accommodation groove 92b. At this time, assuming that the forward connection core wire 105a and the rear connection core wire 105b of the twisted cable 101 are oriented in a direction approaching each other because the distribution convex portion 93a is between the side housing groove 92a and the central housing groove 92b. , the distribution convex portion 93a is inserted between the front connection core wire 105a and the rear connection core wire 105b, the front connection core wire 105a is accommodated in the central accommodation groove 92b, and the rear connection core wire 105b is accommodated in the side accommodation groove 92a. Can be sorted to accommodate.

In this way, when the rear connection core wire 105b is accommodated in the side accommodation groove 92a and the front connection core wire 105a is accommodated in the central accommodation groove 92b, the tip of the sheath 104 of the terminal 102 is positioned in the sheath concave portion 91. Also, the conductor 106 of the pre-connected core wire 105a housed in the central housing groove 92b is positioned in the wire barrel 102b of the terminal 102 on the far side Db of the wire regulating unit 6, and the tip of the insulating coating 107 is located in the insulation barrel. A twisted cable 101 is arranged so as to be positioned at 102a.

Then, the wire holding portion 80 moves downward Hd with respect to the previously connected core electric wire 105a of the twisted cable 101 arranged as described above, and the previously connected core electric wire 105a accommodated in the central accommodation groove 92b is removed from above. The pre-connection core wire 105a to which the terminal 102 is connected is held at a predetermined position by pressing with the holding projection 81 (see FIG. 10(b)).

In this manner, the anvil portion 3 and the crimper portion 4 work together to hold the insulation barrel 102a and the wire barrel 102b of the terminal 102 against the end of the pre-connected core wire 105a held at a predetermined position by the wire holding portion 80. By crimping, the terminal 102 can be crimped.

Next, in order to crimp-connect the terminal 102 to the post-connection core wire 105b of the twisted cable 101 having the terminal 102 crimp-connected to the pre-connection core wire 105a, the twisted cable 101 is once removed from the wire-regulating unit 6, and the And, as shown in FIG. By orienting the twisted cable 101 in the direction of the arrow L in this way, the rear connection core wire 105b is oriented in the depth direction D, and the front connection core wire 105a to which the terminal 102 is connected is oriented in the width direction W with respect to the depth direction D. It is oriented 30 degrees to the right.

In this state, the rear connection core wire 105b is accommodated in the side accommodation groove 92a of the direction restricting portion 90, and the front connection core wire 105a extending in the depth direction D is accommodated in the central accommodation groove 92b. At this time, assuming that the forward connection core wire 105a and the rear connection core wire 105b of the twisted cable 101 are directed toward each other because the distribution convex portion 93b exists between the central housing groove 92b and the side housing groove 92c. , the distribution convex portion 93b is inserted between the front connection core wire 105a and the rear connection core wire 105b, the front connection core wire 105a is accommodated in the lateral accommodation groove 92c, and the rear connection core wire 105b is accommodated in the central accommodation groove 92b. Can be sorted to accommodate.

In this way, when the rear connection core wire 105b is housed in the central housing groove 92b and the front connection core wire 105a is housed in the side housing groove 92c, the tip of the sheath 104 of the terminal 102 is positioned in the sheath recess 91. Also, the conductor 106 of the rear connection core wire 105b housed in the central housing groove 92b is positioned in the wire barrel 102b of the terminal 102 on the far side Db of the wire regulating unit 6, and the tip of the insulating coating 107 is located in the insulation barrel. A twisted cable 101 is arranged so as to be positioned at 102a.

Then, the wire holding portion 80 is moved downward Hd with respect to the rear connection core wire 105b of the twisted cable 101 arranged as described above, and is rear-connected to the central accommodation groove 92b accommodated by the holding convex portion 81. The position of the post-connection core wire 105b to which the terminal 102 is connected is held by pressing the core wire 105b from above with the holding protrusion 81 (see FIG. 11B).

In this way, the anvil part 3 and the crimper part 4 cooperate to press the insulation barrel 102a and the wire barrel 102b of the terminal 102 against the end of the connection core wire 105b whose position is held by the wire holding part 80. It can be tightened to crimp the terminal 102 .

Thus, the terminal crimping device 1 having the anvil portion 3 and the crimper portion 4 for crimping and connecting the terminals 102 to the ends of the core wires 105 exposed by removing the sheath 104 in the twisted cable 101 has two core wires 105 facing each other. are provided in the twisted cable 101 side from the anvil portion 3 and the crimper portion 4, and the two core electric wires 105 The untwisted lengths of the tip portions of the two core wires 105 are reduced by crimping and connecting the two core wires 105 in a direction-regulated state in which the direction is divided into two directions by the direction regulating portion 90 so that one direction is directed to the anvil portion 3 and the crimper portion 4. The terminal 102 can be securely crimped to the end of the core electric wire 105 even if the length is short.

More specifically, the directions of the two core wires 105 exposed by removing the sheath 104 in the twist cable 101 can be controlled by the direction regulating portion 90 by bifurcating them, and the two cores distributed in the bifurcated shape can be regulated. Since the direction of the wire 105 is regulated so that one of the wires 105 is directed toward the anvil portion 3 and the crimper portion 4, even if the untwisted length of the tip portion of the two core wires 105 is short, the anvil portion 3 and the crimper At the portion 4, the terminal 102 can be securely crimped to the end of the core electric wire 105. FIG.

Further, the direction regulating portion 90 faces the lateral accommodation groove 92a for regulating the direction of the core wire 105 to which the terminal 102 is not connected, the anvil portion 3, and the crimper portion 4, and regulates the direction of the core wire 105 to which the terminal 102 is connected. A central accommodation groove 92b for regulation and a lateral accommodation groove 92c for regulating the direction of the core wire 105 to which the terminal 102 is connected are arranged in this order. Then, while the other core wire 105 is regulated by the central accommodation groove 92b, the terminal 102 is crimped and connected by the anvil portion 3 and the crimper portion 4, and the other core wire 105 to which the terminal 102 is crimp-connected is placed in the side accommodation groove. Since the terminal 102 is crimp-connected by the anvil portion 3 and the crimper portion 4 in a state where one core electric wire 105 is regulated by the central housing groove 92b, the twisted cable 101 can be connected even if the untwisted length is short. The terminal 102 can be crimp-connected to the end of the core electric wire 105 more reliably while the orientation of the core electric wire 105 is regulated by the direction regulating portion 90 without twisting.

More specifically, for example, the core wire 105 and the terminal 102 to which the terminal 102 is not connected are connected to the central housing groove 92b that regulates the orientation of the core wire 105 that connects the terminal 102 toward the anvil portion 3 and the crimper portion 4. In the case of a bifurcated direction regulating portion configured with a lateral wire regulating portion for regulating the direction of the core electric wire 105, after crimping connection of the terminal 102 to one of the core electric wires 105, the terminal is crimped to the other core electric wire 105. 102, the direction of the other core wire 105 to which the terminal 102 is connected is regulated by the central housing groove 92b, and the direction of the one core wire 105 to which the terminal 102 is connected is regulated by the lateral wire regulating portion. Therefore, the twisted cable 101 needs to be twisted. 105b is regulated by the side accommodation groove 92a, and the terminal 102 is crimped and connected by the anvil portion 3 and the crimper portion 4 in a state where the pre-connected core wire 105a is regulated by the central accommodation groove 92b, and then the twist cable 101 is not twisted. Then, by changing the orientation of the twisted cable 101, the front connection core wire 105a to which the terminal 102 is crimped and connected is regulated by the side housing groove 92c, and the anvil portion is regulated in the state where the rear connection core wire 105b is regulated by the central housing groove 92b. 3 and the crimper portion 4 allow the crimp connection of the terminal 102 .

Further, the direction regulating portion 90 is configured in a groove shape capable of accommodating the core electric wire 105, and among the core electric wires 105 accommodated in the direction regulating portion 90 configured in the groove shape, the direction is directed toward the anvil portion 3 and the crimper portion 4, An electric wire holding portion 80 for holding a core electric wire 105 for connecting a terminal 102 is provided. , the terminal 102 can be crimped and connected to the end of the core electric wire 105 more reliably by crimping while holding the core electric wire 105 to which the terminal 102 is to be connected by the electric wire holding portion 80 .

Specifically, after the core electric wire 105 is accommodated in the groove-shaped direction restricting portion 90 capable of accommodating the core electric wire 105, the core electric wire 105 to be connected to the terminal 102 is moved toward the anvil portion 3 and the crimper portion 4 to hold the electric wire. Since the anvil portion 3 and the crimper portion 4 are crimped and connected while being held by the portion 80, the core wire 105 to be connected is not displaced with respect to the anvil portion 3 and the crimper portion 4, and the core wire 105 is further reliably connected. A terminal 102 can be crimped to the terminal.

In addition, since the core electric wire 105 that is housed in the groove-shaped direction restricting portion 90 but is not to be connected is not held by the electric wire holding portion 80, the core electric wire 105 that is not to be connected is also included in addition to the core electric wire 105 that is to be connected. When the terminal 102 is crimped and connected by the anvil portion 3 and the crimper portion 4, the load acting when the terminal 102 is crimped is applied to the core wire 105 not to be connected via the core wire 105 to be connected, as in the case where the wire is held by the wire holding portion. The terminal 102 can be crimped to the end of the core wire 105 without any action.

Further, a carrier cutter 60 for cutting a connecting portion Xb connecting the terminals 102 arranged at predetermined intervals to the belt-shaped carrier Xa is provided on the side of the twist cable 101 from the anvil portion 3 and the crimper portion 4, and is arranged downward Hd. A direction regulating portion 90 is provided on the upper surface 60a of the carrier cutter 60 that moves to cut the connecting portion Xb, and the connecting portion Xb that connects the terminals 102 arranged at a predetermined interval to the belt-shaped carrier Xa is downward Hd. The carrier cutter 60 is provided on the upper surface 60a of the carrier cutter 60 to perform crimping connection while the direction is regulated by the direction regulating portion 90 provided on the upper surface 60a of the carrier cutter 60 that moves and cuts the connecting portion Xb. In a state where the direction of the core electric wire 105 is regulated by the direction regulating portion 90 , the terminal 102 with the carrier cut can be crimped to the end of the core electric wire 105 .

More specifically, the terminal 102 connected to the band-shaped carrier Xa at the connecting portion Xb is provided on the upper surface 60a of the carrier cutter 60 which moves downward Hd, cuts the connecting portion Xb, and moves downward Hd. The terminal 102 separated from the carrier Xa by the carrier cutter 60 can be crimp-connected to the end of the core electric wire 105 more reliably while the direction of the core electric wire 105 is regulated by the direction regulating portion 90 .

Further, since the direction regulating portion 90 is provided on the upper surface 60a of the carrier cutter 60 that has moved downward Hd to cut the connecting portion Xb, the direction regulating portion 90 does not need to be separately set after the carrier is cut. can be set at a predetermined position, and can be configured with a simpler structure than when the direction restricting portion 90 is separately configured and set at a predetermined position.

If the direction restricting portion 90 is provided above the carrier cutter 60 and the depth of the containing groove 92 in the direction restricting portion 90 is greater than the diameter of the wire to be crimped, the wire will be crimped when the core wire is crimped. Detachment from the direction control portion can be suppressed. Further, if the depth of the accommodation groove 92 is equal to or greater than the sum of the vertical displacement when the carrier cutter 60 cuts the connecting portion Xb of the terminal band X and the radius of the wire to be crimped, the carrier Even if the wire holding part 80 does not hold the wire during cutting, the core wire 105 does not come off from the housing groove 92, and the terminal separated from the carrier Xa by the carrier cutter is more reliably attached to the end of the core wire 105. 102 can be crimp connected.

In addition, the manufacturing apparatus 31 includes a sheath strip section 33 for removing the sheath 104 from the end of the twisted cable 101 with the sheath 104 armored, and a core electric wire 105 by untwisting the core electric wire 105 exposed by removing the sheath 104 . The core wire coating strip part 37 for removing the insulation coating of the end of the wire and the terminal crimping device 1 described above are arranged in order from the upstream side, and the sheath 104 is attached to the end of the twisted cable 101 that is sheathed. A sheath stripping step of removing, a core wire coating stripping step of untwisting the core wire 105 exposed by removing the sheath 104 and removing the insulation coating of the end of the core wire 105, and connecting the terminal 102 to the core wire 105 by crimping. In order to perform the above-described crimp connection method in this order, the core electric wire 105 exposed by removing the sheath 104 from the end of the twist cable 101 is untwisted, and the core electric wire from which the insulation coating 107 of the end is removed The carrier-cut terminal 102 can be securely crimp-connected to the end of the core wire 105 while the direction of the terminal 105 is regulated by the direction regulating portion 90 provided on the upper surface 60 a of the carrier cutter 60 .

In correspondence with the configuration of the present invention and the above-described embodiments, the twisted cable of the present invention corresponds to the twisted cable 101,
and so on,
The sheath corresponds to sheath 104,
The wires correspond to the core wire 105, the pre-connection core wire 105a, and the post-connection core wire 105b,
The terminal corresponds to the terminal 102,
The crimping part corresponds to the anvil part 3 and the crimper part 4,
The terminal crimping device corresponds to the terminal crimping device 1,
The direction restricting portion corresponds to the direction restricting portion 90,
The wire restricting portion before crimping corresponds to the lateral accommodation groove 92a,
The crimped wire restricting portion corresponds to the central accommodation groove 92b,
After crimping, the wire regulating portion corresponds to the lateral accommodation groove 92c,
The wire holding portion corresponds to the wire holding portion 80,
The carrier corresponds to carrier Xa,
The connecting part corresponds to the connecting part Xb,
The carrier cutter corresponds to the carrier cutter 60,
The sheath strip portion corresponds to the sheath strip portion 33,
The wire covering strip portion corresponds to the core wire covering strip portion 37,
Although the twisted cable terminal processing device corresponds to the manufacturing device 31,
The present invention is not limited only to the configurations of the above-described embodiments, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

For example, the above-described wire holding portion 80 presses and holds the core wire 105 housed in the groove-shaped central housing groove 92b from above. , the holding portion may be fixed and held independently of the direction restricting portion 90 .

The above-described direction restricting portion 90 has a groove shape extending in three directions with the side receiving grooves 92a and 92c and the central receiving groove 92b. After crimp connection of one core wire, the groove-shaped direction restricting portion extending in two directions is rotated like a turntable, and then the terminal is connected to the other core wire. can be configured to

Further, in the above description, the in-vehicle twisted cable 101 in which a pair of core electric wires 105 are twisted together and covered with a sheath 104 constitutes the cable with terminal 100. However, a cable constructed by covering two or more electric wires with a sheath 104 The terminal 102 may be connected by crimping to the core electric wire, or the terminal 102 may be connected by crimping to the untwisted core electric wire. Alternatively, a terminal may be connected by crimping to a pair of core electric wires 105 that are not covered with the sheath 104 . Furthermore, if the twisted cable 101 does not have a sheath 104, the sheath stripping process can be omitted.

Reference Signs List 1 Terminal crimping device 3 Anvil portion 4 Crimper portion 31 Manufacturing device 33 Sheath strip portion 37 Core wire covering strip portion 60 Carrier cutter 80 Wire holding portion 90 Direction restricting portions 92a, 92c Side accommodation Groove 92b Central accommodation groove 101 Twisted cable 102 Terminal 104 Sheath 105 Core electric wire 105a Pre-connection core electric wire 105b Rear-connection core electric wire Xa Carrier Xb Connecting portion

Claims (10)

A terminal crimping device having a crimping portion for crimping and connecting a terminal to an end of an electric wire of a twisted cable,
The direction regulating portion sorts and regulates the electric wires to which the terminals are crimp-connected toward the crimping portion, and the electric wires other than the electric wires to which the terminals are crimp-connected to be separated from the crimping portion. provided on the side ,
The direction control section is
a pre-crimping wire restricting portion that restricts the direction of the wire to which the terminal is not connected;
a crimped wire regulating portion that faces the crimped portion and regulates the direction of the wire connecting the terminal;
A post-crimping wire regulating portion for regulating the direction of the wire to which the terminal is connected,
arranged in this order,
The direction control section is
Constructed in a groove shape that can accommodate the electric wire,
An electric wire holding portion is provided for holding the electric wire accommodated in the crimped electric wire regulating portion facing the crimping portion and connecting the terminal, among the electric wires accommodated in the direction regulating portion configured in a groove shape. ,
The wire held in the pre-crimping wire restricting portion or the post-crimping wire restricting portion is not held by the wire holding portion.
Terminal crimping device. 2. The method according to claim 1 , further comprising a carrier cutter for cutting a connecting portion between the terminal and the carrier in the chain terminal in which the terminal is connected to the belt-like carrier at a predetermined interval, provided closer to the electric wire than the crimping portion. terminal crimping device. 3. The terminal crimping device according to claim 2 , wherein said direction restricting portion is provided above said carrier cutter. The depth of the direction control portion is
A depth equal to or greater than the sum of the vertical displacement when the carrier cutter cuts the connecting portion of the chain terminal and the radius of the wire to be crimped, or
4. The terminal crimping device according to claim 3 , wherein the terminal crimping device is formed to have a depth equal to or greater than the outer diameter of the electric wire to be crimped. a terminal coating removal unit for removing the coating of the terminal of the twisted cable;
The terminal crimping device according to any one of claims 1 to 4 ,
A terminal processing device for twisted cables arranged in order from the upstream side. A twisted cable terminal processing device for processing the terminal of a sheathed twisted cable in which a twisted cable serving as an electric wire is sheathed with a sheath,
a sheath strip portion for removing the sheath at the end of the sheathed twisted cable;
a terminal coating removing unit for removing coating from the terminal of the electric wire;
The terminal crimping device according to any one of claims 1 to 4 ,
A terminal processing device for twisted cables arranged in order from the upstream side. A crimping connection method for crimping and connecting a terminal to an end of an electric wire of a twisted cable using a terminal crimping device having a crimping portion,
A pre-crimping wire regulating portion that regulates the direction of the wire to which the terminal is not connected, a crimped wire regulating portion that faces the crimping portion and regulates the direction of the wire that connects the terminal, and the terminal is connected. The post-crimping wire regulating portion for regulating the direction of the electric wire is arranged in this order so that one of the two electric wires faces the crimping portion and the other is separated from the crimping portion. In addition to controlling the direction by distributing
Among the electric wires accommodated in the groove-shaped direction regulating portion capable of accommodating the electric wire, the electric wire accommodated in the crimped electric wire regulating portion that faces the crimping portion and connects the terminal is moved by the electric wire holding portion. Crimp connection while holding
The wire held in the pre-crimping wire restricting portion or the post-crimping wire restricting portion is not held by the wire holding portion.
Crimp connection method. cutting a connecting portion between the terminal and the carrier of the chain terminal in which the terminal is connected to the belt-shaped carrier at a predetermined interval with a carrier cutter that moves downward;
8. The crimp connection method according to claim 7 , wherein crimp connection is performed in a state in which the direction of the electric wire is regulated by a direction regulating portion provided on the upper portion of the carrier cutter. a coating stripping step of untwisting the wires of the twisted cable and removing the insulation coating from the ends of the wires;
9. A twisted cable terminal processing method in which the crimping connection step according to the crimping connection method according to claim 7 or 8, wherein the terminal is crimpedly connected to the electric wire, is performed in this order. a sheath stripping step of removing the sheath from the end portion of the sheathed twisted cable with the sheath sheathed;
a wire coating stripping step of untwisting the wire exposed by removing the sheath and removing the insulation coating from the end of the wire;
9. A twisted cable terminal processing method in which the crimping connection step according to the crimping connection method according to claim 7 or 8, wherein the terminal is crimpedly connected to the electric wire, is performed in this order.

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