JP6586348B2 - Terminal crimping apparatus and terminal crimping method - Google Patents

Description

  The present invention relates to a terminal crimping apparatus and a terminal crimping method.

  2. Description of the Related Art Conventionally, as a terminal crimping device, an anvil that supports a terminal and a crimper that is arranged to be movable up and down with respect to the anvil and crimps a crimping portion of the terminal to an electric wire are known (for example, Patent Documents). 1).

  In this terminal crimping apparatus, an anvil supporting the terminal is rotatably arranged, and a plurality of terminals connected in a chain are cut into a plurality of terminals, and the anvil is rotated to be crimped into one terminal. Crimp the wire with.

  In such a terminal crimping device, terminal holding means for holding the terminal connection portion is provided above the anvil, and the terminal is positioned and fixed on the anvil.

JP 2007-123189 A

  By the way, in the terminal crimping apparatus like the above-mentioned patent document 1, when crimping the electric wire to the crimping part of the terminal by the crimper, the terminal connection part is held by the terminal holding jig such as the terminal holding means. .

  However, in the terminal holding jig as described in Patent Document 1, the terminal holding jig can easily hold the terminal if the terminal connecting portion is a rectangular tube shape, but the terminal connecting portion is cylindrical. In a certain round terminal, a terminal connection portion is rotated, and the holding of the terminal is not stable, and there is a possibility that a crimping failure between the electric wire and the terminal is caused by a crimper.

  Therefore, an object of the present invention is to provide a terminal crimping apparatus and a terminal crimping method that can stabilize the holding of the terminal and prevent the crimping failure of the terminal.

The invention according to claim 1 is an anvil that supports the crimp portion of a round terminal having a cylindrical connection portion and a crimp portion that is provided integrally with the connection portion and to which a wire is crimped, and is raised and lowered relative to the anvil. A terminal crimping device comprising a crimper that is arranged so as to crimp the crimping portion to the electric wire, and a pair of terminal holding jigs that sandwich the connecting portion at a portion where the connecting portion of the round terminal is located Is arranged, and at least one of the pair of terminal holding jigs is inserted into a hole provided in the connection portion when the connection portion is sandwiched between the hole portion and the round terminal in the rotation direction. An engaging protrusion is provided.

  In this terminal crimping device, since at least one of the pair of terminal holding jigs is provided with a protrusion that is inserted into a hole provided in the connecting portion when the connecting portion is sandwiched, the pair of terminal holding jigs are provided. In a state where the connecting portion of the round terminal is sandwiched by the jig, the round terminal does not rotate, and the round terminal can be stably held on the anvil.

  For this reason, when the electric wire is crimped to the crimping portion of the round terminal by the crimper, the round terminal does not rotate, and the crimping between the electric wire and the round terminal can be stably performed. Defects can be prevented.

  Therefore, in such a terminal crimping apparatus, the holding of the round terminal can be stabilized, and the crimping failure of the round terminal can be prevented.

  A second aspect of the present invention is the terminal crimping apparatus according to the first aspect, wherein a plurality of the hole portions and the protrusion portions are provided in a circumferential direction of the connection portion.

  In this terminal crimping apparatus, since a plurality of holes and protrusions are provided in the circumferential direction of the connecting portion, it is possible to stabilize the rotation of the connecting portion in the rotating direction, and further hold the round terminal against the anvil. Can be stabilized.

  A third aspect of the present invention is the terminal crimping apparatus according to the first or second aspect, wherein a plurality of the hole portions and the protrusion portions are provided in a length direction of the connection portion. .

  In this terminal crimping device, a plurality of holes and protrusions are provided in the length direction of the connection portion, so that it is possible to stabilize the movement restriction in the direction intersecting the length direction of the connection portion, The holding of the round terminal with respect to the anvil can be further stabilized.

According to a fourth aspect of the present invention, there is provided an anvil for supporting the crimping portion of a round terminal having a cylindrical connecting portion and a crimping portion provided integrally with the connecting portion and to which a wire is crimped, and ascending and descending with respect to the anvil. A terminal crimping method comprising: a crimper capable of crimping the crimping portion to the electric wire; and a pair of terminal holding jigs arranged at a portion where the connection portion of the round terminal is located. A first step of disposing the connection portion of the round terminal between the pair of terminal holding jigs, and a protrusion provided on at least one of the pair of terminal holding jigs provided on the connection portion. A second step of inserting the connecting portion between the pair of terminal holding jigs so that the protrusion and the hole engage with each other in the rotation direction of the round terminal, and supported by the anvil. The crimping part of the round terminal is And having a third step of crimping the wire in damper.

  In this terminal crimping method, in the second step, the connecting portion is connected with the pair of terminal holding jigs so that the protrusion provided on at least one of the pair of terminal holding jigs is inserted into the hole provided on the connecting portion. Since the round terminal does not rotate with the pair of terminal holding jigs sandwiching the connection portion of the round terminal, the round terminal can be stably held on the anvil.

  For this reason, in the third step of crimping the crimping portion of the round terminal supported by the anvil to the electric wire with a crimper, the round terminal does not rotate, and the crimping of the electric wire and the round terminal can be performed stably. Crimping failure between the electric wire and the round terminal can be prevented.

  Therefore, in such a terminal crimping method, the holding of the round terminal can be stabilized, and the crimping failure of the round terminal can be prevented.

  According to the present invention, there is an effect that it is possible to provide a terminal crimping apparatus and a terminal crimping method that can stabilize the holding of the round terminal and prevent the crimping failure of the round terminal.

It is a perspective view of a round terminal of a terminal crimping device concerning an embodiment of the invention. It is a disassembled perspective view of the round terminal of the terminal crimping apparatus which concerns on embodiment of this invention. It is sectional drawing of the connection part of the round terminal of the terminal crimping apparatus which concerns on embodiment of this invention. It is a perspective view when inserting a mating terminal in a round terminal of a terminal crimping device concerning an embodiment of the invention. It is a front view when inserting a mating terminal in a round terminal of a terminal crimping device concerning an embodiment of the invention. It is sectional drawing when inserting a mating terminal in the round terminal of the terminal crimping apparatus which concerns on embodiment of this invention. 1 is a perspective view of a terminal crimping apparatus according to a first embodiment of the present invention. It is a perspective view of one terminal holding jig and a round terminal of a terminal crimping device concerning a 1st embodiment of the present invention. It is a front view when the connection part of the round terminal of the terminal crimping apparatus which concerns on 1st Embodiment of this invention is pinched | interposed with a pair of terminal holding jig. It is sectional drawing when the connection part of the round terminal of the terminal crimping apparatus which concerns on 1st Embodiment of this invention is pinched | interposed with a pair of terminal holding jig. It is a perspective view of the terminal crimping apparatus which concerns on 2nd Embodiment of this invention. It is a perspective view of one terminal holding jig and a round terminal of a terminal crimping device concerning a 2nd embodiment of the present invention. It is a top view of the other terminal holding jig and round terminal of the terminal crimping device concerning a 2nd embodiment of the present invention. It is a front view when the connection part of the round terminal of the terminal crimping apparatus which concerns on 2nd Embodiment of this invention is pinched | interposed with a pair of terminal holding jig. It is sectional drawing when the connection part of the round terminal of the terminal crimping apparatus which concerns on 2nd Embodiment of this invention is pinched | interposed with a pair of terminal holding jig.

  A terminal crimping apparatus and a terminal crimping method according to an embodiment of the present invention will be described with reference to FIGS.

(First embodiment)
The first embodiment will be described with reference to FIGS.

  A terminal crimping apparatus 1 according to the present embodiment is an anvil that supports a crimping part 5 of a round terminal 7 having a cylindrical connecting part 3 and a crimping part 5 that is provided integrally with the connecting part 3 and to which a wire is crimped. 9 and a crimper 11 disposed so as to be movable up and down with respect to the anvil 9 and crimping the crimping portion 5 to the electric wire.

  In addition, a pair of terminal holding jigs 13 and 15 that sandwich the connection portion 3 are disposed in a portion where the connection portion 3 of the round terminal 7 is located.

  Then, one terminal holding jig 13 of the pair of terminal holding jigs 13 and 15 is provided with a protrusion 19 that is inserted into the hole 17 provided in the connection part 3 when the connection part 3 is sandwiched. It has been.

  A plurality of holes 17 and protrusions 19 are provided in the circumferential direction of the connecting portion 3.

  Furthermore, the terminal crimping method according to the present embodiment is provided in the first step of arranging the connecting portion 3 of the round terminal 7 between the pair of terminal holding jigs 13 and 15 and the one terminal holding jig 13. The second step of sandwiching the connecting portion 3 between the pair of terminal holding jigs 13 and 15 so that the protruding portion 19 is inserted into the hole portion 17 provided in the connecting portion 3, and the round terminal 7 supported by the anvil 9. And a third step of crimping the crimping portion 5 to the electric wire by the crimper 11.

  As shown in FIGS. 1 to 6, the round terminal 7 is made of a conductive material, and includes a cylindrical connection portion 3 and a crimping portion 5 formed of a single member continuous with the connection portion 3.

  The connection unit 3 includes an inner terminal 21 and a sleeve 23. The inner terminal 21 is formed in a cylindrical shape by bending a conductive material, and a contact portion 25 is provided inside the inner terminal 21 so as to be elastically deformable.

  The sleeve 23 is made of a conductive material, is formed in a cylindrical shape, is disposed so as to cover the outer periphery of the inner terminal 21, and prevents the opening of the inner terminal 21 formed by bending.

  The opening on one end side of the sleeve 23 is a tapered portion 27 that is bent toward the inner side of the opening edge and inclines in a mortar shape from the outer diameter side toward the inner diameter side.

  By providing the taper portion 27 in this way, when the mating terminal 29 made of a male terminal having a tab-shaped connection portion is inserted into the connection portion 3, the mating terminal 29 is guided along the taper portion 27, So-called mating of the mating terminal 29 can be prevented.

  A mating terminal 29 is inserted into the connecting portion 3 from the tapered portion 27 side, and the mating terminal 29 and the contact portion 25 come into contact with each other, whereby the round terminal 7 and the mating terminal 29 are electrically connected. .

  In the sleeve 23 of the connecting portion 3, a plurality (two in this case) of the hole portions 17 penetrating the sleeve 23 are provided in the circumferential direction at the same position in the length direction of the sleeve 23. The inner terminal 21 whose outer periphery is covered with the sleeve 23 is formed of a single member continuous with the crimping portion 5.

  The crimping part 5 includes a conductor crimping part 31 and an electric wire crimping part 33. The conductor crimping portion 31 is formed of a single member that is continuous with the inner terminal 21 of the connecting portion 3 and has a pair of crimping pieces.

  The conductor crimping portion 31 is crimped to the conductor portion by crimping a pair of crimping pieces to the conductor portion exposed from the insulating coating at the terminal portion of the electric wire (not shown), and electrically connects the round terminal 7 and the electric wire. Connect.

  The wire crimping portion 33 is formed of a single member that is continuous with the inner terminal 21 and the conductor crimping portion 31, and has a pair of crimping pieces as with the conductor crimping portion 31.

  The electric wire crimping portion 33 is fixed to the insulating coating by crimping a pair of crimping pieces to the insulating coating that covers the conductor portion at the end portion of the electric wire, and fixes the round terminal 7 to the electric wire.

  Such a round terminal 7 is crimped to the terminal portion of the electric wire by the terminal crimping apparatus 1 having the anvil 9, the crimper 11, and the pair of terminal holding jigs 13 and 15.

  7-10, the anvil 9 is arrange | positioned in the part in which the crimping part 5 of the round terminal 7 is located, the conductor crimping part 31 and the electric wire crimping part 33 of the crimping part 5 are arrange | positioned on the upper surface, and round The crimping part 5 of the terminal 7 is supported.

  The crimper 11 is disposed above the anvil 9 so as to be movable up and down, and has a processed surface in which the surface facing the anvil 9 is formed in an oval shape. Crimp and crimp on the wire.

  In addition, although the two crimpers 11 are arrange | positioned independently with respect to the conductor crimping | compression-bonding part 31 and the electric wire crimping | compression-bonding part 33 of the crimping | compression-bonding part 5, not only this but one crimper 11 which connected two is also used. Good.

  The pair of terminal holding jigs 13 and 15 are arranged in a portion where the connection portion 3 of the round terminal 7 is located, the opposing surfaces are formed in a semicircular shape, and the terminal holding jig 13 located on the upper side is the lower side. It is arrange | positioned so that raising / lowering is possible with respect to the terminal holding jig 15 located in this.

  The pair of terminal holding jigs 13 and 15 are arranged in such a manner that the connecting portion 3 of the round terminal 7 is sandwiched between the crimping portion 11 and the crimping portion 5 of the round terminal 7 before the electric wire is crimped. Hold position.

  Here, since the connecting portion 3 of the round terminal 7 is cylindrical, the round terminal 7 is rotated during crimping by the crimper 11 if it is simply sandwiched between the pair of terminal holding jigs 13 and 15. There was a risk of causing poor crimping.

  Therefore, one terminal holding jig 13 (here, the terminal holding jig 13 positioned on the upper side) of the pair of terminal holding jigs 13 and 15 is provided at the connection part 3 when the connection part 3 is sandwiched therebetween. A protrusion 19 that is inserted into the hole 17 is provided.

  The projecting portion 19 has a plurality of projections 19 facing the connecting portion 3 in a portion that coincides with the hole portion 17 provided in the connecting portion 3 on the semicircular surface facing the connecting portion 3 of the terminal holding jig 13 positioned on the upper side. There are two (in this case).

  The projecting portion 19 is inserted into the hole portion 17 of the connection portion 3 when the connection portion 3 of the round terminal 7 is sandwiched between the pair of terminal holding jigs 13 and 15.

  By inserting the protrusion 19 into the hole 17, the round terminal 7 does not rotate on the anvil 9, the round terminal 7 can be stably held with respect to the anvil 9, and crimping by the crimper 11 can be performed. It can be performed stably.

  In addition, since the hole portion 17 and the projection portion 19 are provided in a plurality (two in this case) in the circumferential direction of the connection portion 3, the rotation prevention portion in the circumferential direction of the connection portion 3 can be increased. The rotation of the round terminal 7 can be prevented stably.

  In the terminal crimping method in the terminal crimping apparatus 1 configured as described above, first, the crimping part 5 of the round terminal 7 is arranged on the anvil 9 and the terminal holding jig in which the connection part 3 of the round terminal 7 is positioned on the lower side. It arrange | positions on the tool 15, and the connection part 3 of the round terminal 7 is arrange | positioned between a pair of terminal holding jigs 13 and 15 (1st process).

  Next, the terminal holding jig 13 positioned on the upper side is lowered toward the terminal holding jig 15 positioned on the lower side, and the protruding portion 19 of the terminal holding jig 13 positioned on the upper side is connected to the connecting portion 3 of the round terminal 7. The connection portion 3 is sandwiched between the pair of terminal holding jigs 13 and 15 so as to be inserted into the hole portion 17 and the round terminal 7 is held on the anvil 9 (second step).

  Then, the crimper 11 is lowered toward the crimping portion 5 of the round terminal 7 supported on the anvil 9, and the crimping portion 5 is crimped by the crimper 11 to be crimped to the electric wire, thereby completing the crimping of the round terminal 7 and the electric wire. (Third step).

  In such a terminal crimping device 1, when one of the terminal holding jigs 13 is provided with the projection 19 inserted into the hole 17 provided in the connection 3 when the connection 3 is sandwiched, In a state where the connection portion 3 of the round terminal 7 is sandwiched between the pair of terminal holding jigs 13 and 15, the round terminal 7 does not rotate, and the round terminal 7 can be stably held on the anvil 9.

  For this reason, when crimping the electric wire to the crimping part 5 of the round terminal 7 by the crimper 11, the round terminal 7 does not rotate, and the electric wire and the round terminal 7 can be stably crimped. Crimping failure with the round terminal 7 can be prevented.

  Therefore, in such a terminal crimping apparatus 1, the holding of the round terminal 7 can be stabilized, and the crimping failure of the round terminal 7 can be prevented.

  Moreover, since the hole part 17 and the protrusion part 19 are provided with two or more in the circumferential direction of the connection part 3, the holding | maintenance of the rotation direction of the connection part 3 can be stabilized, and holding | maintenance of the round terminal 7 with respect to the anvil 9 is possible. Can be further stabilized.

  Further, in the terminal crimping method in the terminal crimping apparatus 1, in the second step, a pair of projections 19 provided on one terminal holding jig 13 is inserted into the holes 17 provided on the connection part 3. Since the connection portion 3 is sandwiched between the terminal holding jigs 13 and 15, the round terminal 7 does not rotate in a state where the connection portion 3 of the round terminal 7 is sandwiched between the pair of terminal holding jigs 13 and 15. 7 can be stably held on the anvil 9.

  For this reason, in the third step of crimping the crimping portion 5 of the round terminal 7 supported by the anvil 9 to the electric wire by the crimper 11, the round terminal 7 is not rotated, and the crimping of the electric wire and the round terminal 7 is stabilized. It is possible to prevent the crimping failure between the electric wire and the round terminal 7.

  Therefore, in such a terminal crimping method, the holding of the round terminal 7 can be stabilized, and the crimping failure of the round terminal 7 can be prevented.

(Second Embodiment)
A second embodiment will be described with reference to FIGS.

  In the terminal crimping apparatus 101 according to the present embodiment, a plurality of holes 103 and protrusions 105 are provided in the length direction of the connection part 3.

  The same components as those of the first embodiment are denoted by the same reference numerals, and the description of the configuration and functions will be omitted with reference to the first embodiment. However, the configuration is the same as that of the first embodiment. The effect achieved is the same.

  As shown in FIGS. 11 to 15, the hole 103 is provided through the sleeve 23 in the sleeve 23 constituting the connecting portion 3 of the round terminal 7, and a plurality (four in this case) are arranged on the outer periphery of the sleeve 23. Has been.

  The plurality of hole portions 103 are provided in the circumferential direction at the same position in the length direction of the sleeve 23 (two in this case), and are provided in a plurality of rows (here, two rows) in the length direction of the sleeve 23. Yes.

  The protrusion 105 is formed on a semicircular surface facing the connection portion 3 of one terminal holding jig 13 (here, the terminal holding jig 13 located on the upper side) of the pair of terminal holding jigs 13 and 15. A plurality (four in this case) protrudes toward the connecting portion 3 at a portion corresponding to the hole portion 103 provided in the connecting portion 3.

  The plurality of projecting portions 105 are inserted into the plurality of hole portions 103 of the connecting portion 3 when the connecting portion 3 of the round terminal 7 is sandwiched between the pair of terminal holding jigs 13 and 15.

  The insertion of the plurality of protrusions 105 into the plurality of holes 103 prevents the round terminal 7 from rotating on the anvil 9 and moves the round terminal 7 in a direction intersecting the length direction. Therefore, the round terminal 7 can be held more stably with respect to the anvil 9, and the crimping by the crimper 11 can be performed more stably.

  In addition, the terminal crimping method in the terminal crimping apparatus 1 configured as described above is the same as the terminal crimping method in the first embodiment. In the second step, the connection portion 3 is connected by the pair of terminal holding jigs 13 and 15. Since the plurality of protrusions 105 are inserted into the plurality of holes 103 when sandwiched, the description thereof is omitted.

  In such a terminal crimping device 101, a plurality of the holes 103 and the protrusions 105 are provided in the length direction of the connection portion 3, and thus movement restriction in a direction intersecting the length direction of the connection portion 3 is performed. It is possible to stabilize, and the holding of the round terminal 7 with respect to the anvil 9 can be further stabilized.

  In the terminal crimping apparatus according to the embodiment of the present invention, two holes and protrusions are provided in the circumferential direction of the connection part. However, the present invention is not limited thereto, and the hole and protrusions are connected to the connection part. Two or more may be provided in the circumferential direction, or one hole and a protrusion may be provided in the circumferential direction of the connecting portion.

  In addition, two holes and protrusions are provided in the length direction of the connection part, but not limited thereto, two or more hole parts and protrusions are provided in the length direction of the connection part, or One hole and one protrusion may be provided in the length direction of the connecting portion.

  Further, the protrusion is provided on one terminal holding jig of the pair of terminal holding jigs, but the present invention is not limited to this, and a pair of terminal holding jigs provided with a protrusion on the other terminal holding jig. Any terminal holding jig may be provided with the protrusion as long as the position where the protrusion is provided is the same as the hole provided in the connection portion.

  In addition, the connection portion of the round terminal is configured by the inner terminal and the sleeve, but is not limited thereto, and may be configured by only the inner terminal. If the connection portion is formed in a cylindrical shape, the connection portion Any configuration may be used.

DESCRIPTION OF SYMBOLS 1,101 ... Terminal crimping device 3 ... Connection part 5 ... Crimping part 7 ... Round terminal 9 ... Anvil 11 ... Crimper 13, 15 ... Terminal holding jig 17, 103 ... Hole part 19, 105 ... Projection part

Claims (4)

An anvil that supports the crimping portion of the round terminal having a cylindrical connection portion and a crimping portion that is integrally provided with the connection portion and to which the electric wire is crimped, and the crimping portion that is arranged to be movable up and down relative to the anvil. A terminal crimping device comprising a crimper for crimping the electric wire,
A pair of terminal holding jigs that sandwich the connection portion is disposed in a portion where the connection portion of the round terminal is located,
At least one of the pair of terminal holding jigs is inserted into a hole provided in the connection portion when the connection portion is sandwiched, and is engaged in a rotation direction of the hole portion and the round terminal. A terminal crimping device provided with a protrusion. The terminal crimping device according to claim 1,
The terminal crimping device, wherein a plurality of the hole portions and the protrusion portions are provided in a circumferential direction of the connection portion. The terminal crimping device according to claim 1 or 2,
The terminal crimping device, wherein a plurality of the holes and the protrusions are provided in a length direction of the connection portion. An anvil that supports the crimping portion of the round terminal having a cylindrical connection portion and a crimping portion that is integrally provided with the connection portion and to which the electric wire is crimped, and the crimping portion that is arranged to be movable up and down relative to the anvil. A terminal crimping method comprising: a crimper to be crimped to the electric wire; and a pair of terminal holding jigs that are disposed in a portion where the connection portion of the round terminal is located and sandwich the connection portion.
A first step of disposing the connection portion of the round terminal between the pair of terminal holding jigs, and a hole provided in at least one of the pair of terminal holding jigs provided in the connection portion; A second step of inserting the connecting portion with the pair of terminal holding jigs so that the protruding portion and the hole portion are engaged with each other in the rotation direction of the round terminal, and the round supported by the anvil. And a third step of crimping the crimping portion of the terminal to the electric wire with the crimper.

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