Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
  • H01R43/048—Crimping apparatus or processes
  • H01R43/052—Crimping apparatus or processes with wire-feeding mechanism
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21F—WORKING OR PROCESSING OF METAL WIRE
  • B21F23/00—Feeding wire in wire-working machines or apparatus
  • B21F23/005—Feeding discrete lengths of wire or rod
  • B21F23/007—Feeding discrete lengths of wire or rod using pick-up means, e.g. for isolating a predefined number of wires from a bundle

Definitions

• the present invention relates to a device for transferring an electric wire, which is provided in a device that crimps an outer sleeve passing over an outer periphery of the electric wire, and relates to a method for manufacturing the electric wire.
• Patent Literature 1 discloses a technique related to a device for crimping a shielded terminal of this type to an electric wire.
• an outer sleeve When this type of shielded terminal is attached to an end of an electric wire by an automatic machine, an outer sleeve may be crimped and attached to an outer periphery of the electric wire.
• the outer sleeve is conveyed by an automatic machine from a previous step to a next crimping step in a state where the outer sleeve loosely passes over the outer periphery of the electric wire. Accordingly, in the crimping step, it is necessary to position the outer sleeve, which is in a state of loosely passing over the outer periphery of the electric wire, at a predetermined position and crimp the outer sleeve on the electric wire.
• Patent Literature 1 JP3456422B2
• the outer sleeve since the outer sleeve loosely passes over the outer periphery of the electric wire, the outer sleeve may slide and move relatively to a rear side of the electric wire due to an acceleration when the electric wire is conveyed forward, and the outer sleeve cannot be crimped at a desired position in the crimping step, and there is a need for easily positioning the outer sleeve.
• the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a device for transferring an electric wire and a method for manufacturing an electric wire, which can easily position an outer sleeve.
• a device for transferring an electric wire and a method for manufacturing an electric wire according to the present invention have the following features.
• a device for transferring an electric wire attached with an outer sleeve includes: a front chuck and a rear chuck configured to grip the electric wire delivered from a previous step; and a sleeve chuck configured to grip the outer sleeve.
• the front chuck is opened from a state of gripping the electric wire by the front chuck and the rear chuck.
• the sleeve chuck grips the outer sleeve and slides the outer sleeve to a predetermined position on a distal end side of the electric wire. And then, the front chuck grips the electric wire again and transfers the electric wire to a next step.
• a method for manufacturing an electric wire includes: gripping the electric wire attached with an outer sleeve by a front chuck and a rear chuck; gripping the outer sleeve by a sleeve chuck; opening the front chuck from a state of gripping the electric wire together with the rear chuck, gripping the outer sleeve by the sleeve chuck and sliding the outer sleeve to a predetermined position on a distal end side of the electric wire, and then gripping the electric wire again by the front chuck; transferring the electric wire to an applicator that includes a guide space for guiding a distal end portion of the electric wire, a positioning portion for positioning the outer sleeve, and a crimping portion for crimping the outer sleeve to the electric wire; and inserting the distal end portion of the electric wire into the guide space, and crimping the outer sleeve to the electric wire by
• the present invention even in a state where the outer sleeve is not crimped, it is possible to transfer the electric wire avoiding a situation where the outer sleeve is moved to a rear end side from a predetermined crimping position when the electric wire is transferred forward.
• FIG. 1 is a schematic side view showing a state where an electric wire gripped by a conveyance chuck is lifted by a front chuck and a rear chuck in a transfer device 100 according to the present embodiment
• FIG. 2 is a schematic side view showing a state where an outer sleeve is gripped by a sleeve chuck in the transfer device 100 according to the present embodiment
• FIG. 3 is a schematic side view showing a state where the gripped outer sleeve is moved forward by the sleeve chuck in the transfer device 100 according to the present embodiment
• FIG. 4 is a schematic side view showing a state where the electric wire is held again by the front chuck and the rear chuck in the transfer device 100 according to the preset embodiment
• FIG. 5 is a schematic side view showing a state where the electric wire gripped by the front chuck and the rear chuck is to be returned to the conveyance chuck in the transfer device 100 according to the embodiment.
• the device 100 for transferring an electric wire is a device for transferring an electric wire W having an outer sleeve S that loosely passing over an outer periphery of the electric wire W in advance.
• the electric wire W is used for, for example, a wire harness.
• the transfer device 100 includes a front chuck 10 and a rear chuck 20 that grip and lift the electric wire W transferred by a conveyance chuck 1.
• the conveyance chuck 1 is a chuck for conveying the electric wire W to be processed among a plurality of processing devices including the transfer device 100. Accordingly, each processing device grips the electric wire W conveyed by the conveyance chuck 1 using a chuck of each device, and returns the electric wire W to the conveyance chuck 1 again when the electric wire W is processed.
• the front chuck 10 includes a chuck portion 11 that is opened and closed by 180°, and an elevating mechanism 12 that lifts and lowers the chuck portion 11.
• the rear chuck 20 includes a chuck portion 21 that is opened and closed in parallel, and an elevating mechanism 22 that lifts and lowers the chuck portion 21.
• the front chuck 10 grips an electric wire distal end side in the vicinity of an end of the electric wire W
• the rear chuck 20 grips the electric wire W at a position in the rear of the front chuck 10 (on a side opposite to the electric wire distal end side).
• Types of the chuck portions 11 and 21 of the front chuck 10 and the rear chuck 20 can be freely selected as long as the chuck portions 11 and 21 do not interfere with other components.
• the chuck portion 11 of the front chuck 10 may be a chuck portion of a parallel opening and closing type
• the chuck portion 21 of the rear chuck 20 may be a chuck portion of a 180° opening and closing type.
• the transfer device 100 includes a sleeve chuck 30 that grips an outer sleeve S that passes over an outer periphery of the electric wire W in advance in a previous step.
• the front chuck 10 is opened when the rear chuck 20 grips the electric wire W
• the sleeve chuck 30 grips the outer sleeve S without interfering with the opened front chuck 10, and the outer sleeve S can be slid to a predetermined position on the electric wire distal end side.
• the sleeve chuck 30 includes a chuck portion 31 that grips the outer sleeve S and a movement mechanism 32 that slides the outer sleeve S to a predetermined position in a length direction of the electric wire W.
• the front chuck 10 is closed, and the electric wire W is gripped again by both the front chuck 10 and the rear chuck 20. Thereafter, as shown in FIG. 5 , the front chuck 10 and the rear chuck are lowered to transfer the electric wire W to the conveyance chuck 1 in order to proceed to a next step.
• FIG. 6 is a schematic side view showing a state before the electric wire attached with the outer sleeve is inserted into a crimping applicator by a transfer chuck in the transfer device 100 according to the present embodiment
• FIG. 7 is a schematic side view showing a state where the electric wire attached with the outer sleeve is inserted into the crimping applicator by the transfer device 100
• FIG. 8 is an enlarged view showing a portion A in FIG. 7
• FIG. 9 is a schematic side view showing a state where the outer sleeve is crimped.
• the transfer device 100 includes an electric wire transfer chuck 40 that receives the electric wire W attached with the outer sleeve S from the conveyance chuck 1.
• the electric wire transfer chuck 40 is a device that receives the electric wire W from the conveyance chuck 1 and sets the electric wire W in an applicator 50.
• the electric wire transfer chuck 40 includes a temporary stopping guide 41 that prevents the outer sleeve S from sliding and moving toward a rear side of the electric wire W due to an inertial force when a distal end portion of the electric wire W is conveyed toward the inside of the applicator 50, and the temporary stopping guide 41 serves to push the outer sleeve S forward.
• the temporary stopping guide 41 automatically returns to an original position after temporary stopping is performed.
• the applicator 50 has a function of crimping the outer sleeve S after positioning the outer sleeve S.
• the applicator 50 includes a guide space 51 for guiding the electric wire distal end portion, a positioning portion 52 for positioning the outer sleeve S, and a crimping portion 53 for crimping the outer sleeve S.
• a distal end side of an upper wall 51a of the guide space 51 is lower than an opening side.
• the positioning portion 52 can project and retract between a projecting position where the positioning portion 52 projects toward a position where the electric wire W extends when the distal end portion of the electric wire W is inserted into the guide space 51 and a retracted position where the positioning portion 52 is not in contact with the electric wire when the electric wire W is moved to a position along a surface of the crimping portion 53, as shown in FIG. 9 .
• a reference numeral T in FIG. 8 denotes a terminal.
• the electric wire W having the outer sleeve S loosely passed over an outer periphery in a previous step is conveyed to a position below the front chuck 10 and the rear chuck 20 by the conveyance chuck 1. Then, the front chuck 10 and the rear chuck 20 grip front and rear positions of the electric wire W gripped by the conveyance chuck and lift the electric wire W.
• the front chuck 10 is closed, and the electric wire W is gripped by both the front chuck 10 and the rear chuck 20.
• the outer sleeve S is located in front of a position shown in FIG. 4 .
• the electric wire W is returned to a conveyance line. That is, when the front chuck 10 and the rear chuck 20 are opened, the conveyance chuck 1 is opened and then closed, and the conveyance chuck 1 receives the electric wire W.
• the electric wire W is transferred to the electric wire transfer chuck 40. That is, the electric wire transfer chuck 40 receives the electric wire W from the conveyance chuck 1. Then, the electric wire transfer chuck 40 presses the outer sleeve S using the temporary stopping guide 41 such that the outer sleeve S does not slidably move backward. Next, as shown in FIG. 7 , in this state, the electric wire transfer chuck 40 inserts and sets a distal end of the electric wire W into the applicator 50. At this time, the temporary stopping guide 41 protrudes forward so that the outer sleeve S does not move due to an inertial force.
• the electric wire W When the distal end of the electric wire W is inserted into the applicator 50, the electric wire W is guided downward by the guide space 51. At this time, since the positioning portion 52 projects to the projecting position, the outer sleeve S is positioned by the positioning portion 52.
• the positioning portion 52 retracts to the retracted position, and in this state, the outer sleeve S is crimped to the electric wire W at the positioned position by the action of a clipper and an anvil of the crimping portion 53.
• the outer sleeve is adopted in electric wires of various communication standards such as a shielded electric wire and coaxial electric wires, and can be crimped while being positioned simply by using an existing applicator.
• the positioning portion 52 may be fixed at the projecting position without projecting and retracting between the projecting position and the retracted position.
• the positioning portion 52 is formed by a plate-shaped member, and a U-shaped groove is formed downward from an approximate center of an upper portion of the plate-shaped member. A bottom portion of the groove extends to a position where the inserted electric wire W can be in a horizontal state as shown in FIG. 9 .
• the groove passes through the plate-shaped member in a plate thickness direction, and is wider than an outer diameter of the distal end portion of the electric wire W and narrower than an outer diameter of the outer sleeve S.
• the positioning portion 52 is installed such that a plate direction is parallel to a projection line of an insertion direction of the electric wire onto a horizontal plane. Accordingly, when the electric wire W is inserted into the applicator 50, the positioning portion 52 allows the distal end portion of the electric wire W to pass through the groove and enter the guide space 51. On the other hand, since the outer diameter of the outer sleeve S is larger than that of the groove, entry of the outer sleeve S into the guide space 51 is prevented by the groove, and as a result, the outer sleeve S is positioned by the positioning portion 52.
• the outer sleeve S can be easily positioned not only when the positioning portion 52 is employed in an automatic machine but also when an operator grips an electric wire and inserts the electric wire into the applicator 50.
• the transfer device 100 can also transfer the electric wire W in the same manner in a case where an annular member such as a rubber plug, a terminal cover, and a retainer passes over the electric wire W in advance, in addition to the outer sleeve S.
• the features of the device 100 for transferring an electric wire and a method for manufacturing an electric wire according to the embodiment of the present invention described above are briefly summarized and listed in the following first to fourth aspects.
• a device (100) for transferring an electric wire attached with an outer sleeve (S) includes: a front chuck (10) and a rear chuck (20) configured to grip the electric wire (W) delivered from a previous step; and a sleeve chuck (30) configured to grip the outer sleeve (S).
• the front chuck (10) is opened from a state of gripping the electric wire (W) by the front chuck (10) and the rear chuck (20).
• the sleeve chuck (30) grips the outer sleeve (S) and slides the outer sleeve (S) to a predetermined position on a distal end side of the electric wire. And then, the front chuck (10) grips the electric wire (W) again and transfers the electric wire (W) to a next step.
• the device (100) for transferring an electric wire in the above first aspect even in a state where the outer sleeve (S) is not crimped, it is possible to transfer the electric wire (W) avoiding a situation where the outer sleeve (S) is moved to a rear end side from a predetermined crimping position when the electric wire (W) is transferred forward.
• the device (100) further includes: an applicator (50) configured to crimp the outer sleeve (S) to the electric wire (W).
• the applicator (50) includes a guide space (51) for guiding a distal end portion of the electric wire (W), a positioning portion (52) for positioning the outer sleeve (S), and a crimping portion (53) for crimping the outer sleeve (S).
• a distal end side of the guide space (51) is lower than an opening side of the guide space (51).
• the outer sleeve (S) can be crimped to the electric wire while being positioned at an appropriate position simply by inserting and setting a distal end of the electric wire (W) into the applicator (50).
• the positioning portion (52) is formed by a plate-shaped member that is formed with a groove having a width wider than an outer diameter of the distal end portion of the electric wire (W) and narrower than an outer diameter of the outer sleeve (S).
• the positioning portion (52) since the positioning portion (52) can be retracted, the positioning portion (52) does not interfere with other members when the outer sleeve (S) is crimped. Accordingly, positioning of the outer sleeve (S) and crimping of the outer sleeve (S) along a line can be performed at the same position.
• a method for manufacturing an electric wire includes: gripping an electric wire (W) attached with an outer sleeve (S) by a front chuck (10) and a rear chuck (20); gripping the outer sleeve (S) by a sleeve chuck (30); opening the front chuck (10) from a state of gripping the electric wire (W) by the front chuck (10) and the rear chuck (20), gripping the outer sleeve (S) by the sleeve chuck (30) and sliding the outer sleeve (S) to a predetermined position on a distal end side of the electric wire, and then gripping the electric wire (W) again by the front chuck (10); transferring the electric wire (W) to an applicator (50) that includes a guide space (51) for guiding a distal end portion of the electric wire (W), a positioning portion (52) for positioning the outer sleeve (S), and a crimping portion (53) for crimping the

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Manufacturing Of Electrical Connectors (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=90274869

Family Applications (1)

Country Status (5)

Family Cites Families (7)

• 2022
  • 2022-09-12 JP JP2022144780A patent/JP7509837B2/ja active Active
• 2023
  • 2023-08-09 EP EP23865154.1A patent/EP4589788A4/fr active Pending
  • 2023-08-09 CN CN202380058796.3A patent/CN119605041A/zh active Pending
  • 2023-08-09 WO PCT/JP2023/029196 patent/WO2024057795A1/fr not_active Ceased
• 2025
  • 2025-02-07 MX MX2025001585A patent/MX2025001585A/es unknown

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