JPH0719992U - Core wire crimping device at joint part - Google Patents

Abstract

(57) [Abstract] [Purpose] In a core wire crimping device in a joint portion, the core wire is accurately positioned in the crimping piece, and the core wire is prevented from protruding from the crimping piece. [Composition] The crimp terminal 11 is manufactured in a state in which the crimp piece 12 is connected to the connecting piece 13 via a bridge portion 14 having a length D. An upper press die 16 that bends the crimping piece 12 in cooperation with the lower press die 15 is provided above the lower press die 15 on which the crimping piece 12 is placed. A slide cutter 17 that cuts between the bridge portion 14 and the bridge portion 14 is provided. The slide cutter 17 is formed with a groove 17a into which the connecting piece 13 is fitted, a restricting surface 17b for restricting the position of the core wire tip portion 18b of the branch wire 18, and a mounting surface 17c on which the main wire 19 is mounted. The branch wire 18 is provided in the crimping piece 12 placed on the lower press die 15 and the tip portion 18b of the branch wire 18 is the regulating surface 1.
7b is arranged so that the bridge portion 14 is connected to the connecting piece 13
Cut at the near position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a core wire crimping device in a joint portion for connecting wires to each other by using a crimping terminal connected to a connecting piece via a bridging portion.

[0002]

[Prior art]

 Conventionally, when connecting core wires of a plurality of electric wires, a crimp terminal 1 is manufactured by connecting a plurality of crimp pieces 2 to one connecting piece 3 through a bridging portion 4 as shown in FIG. In the crimping piece 2, for example, first, the core wire portion 5a of the branch wire 5 is arranged as shown in FIG. At this time, the tip portion 5b is visually positioned, the core wire 6a of the main wire 6 is superposed on the core wire 5a of the branch wire 5 arranged in the crimping piece 2, and then the crimping piece 2 is folded by a crimping mechanism (not shown). The core wires 5a and 6a are bent and connected by crimping, and the crimping piece 2 is cut from the bridging portion 4 by the cutting portion 2a by a cutting mechanism. The core wires 5a and 6a thus connected via the crimping piece 2 are wound with an insulating tape or the like for insulation protection.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional example, since the core wire 5a of the branch wire 5 is visually positioned in the crimping piece 2, a skill is required for the work. Further, as shown in FIG. 4, when the core wire 5a of the branch wire 5 is positioned so as to project too much, a part of the tip end portion 5b of the core wire 5a made of a stranded wire is bent outward to break the insulating tape covered. This may cause a short circuit.

An object of the present invention is to solve the above-mentioned problems and to provide a core wire crimping device in a joint portion in which the end portion of the core wire is prevented from being bent.

[0005]

[Means for Solving the Problems]

 The core wire crimping device in the joint part according to the present invention for achieving the above-mentioned object includes a lower press die for sequentially mounting crimping pieces connected to a connecting piece through a band-shaped bridging portion, and the inside of the crimping piece. Insert the tip of the first core wire toward the bridging portion, and after accommodating the second core wire, bend the crimping piece in cooperation with the lower press die to crimp the first core wire. 1. An upper press die for electrically connecting the second core wires to each other, a cutting mechanism for cutting the bridging portion on the side closer to the connecting piece, and a tip position of the second core wire for the remaining bridging portion. It is characterized by having a regulation surface that regulates the length to be approximately the same as the section.

[0006]

[Action]

 In the core wire crimping device in the joint portion having the above-described configuration, the crimping piece is placed on the lower press die with a predetermined space between the crimping piece and the regulating surface, and the tip of the first core wire is the regulating surface. Place the second core wire on the first core wire so that they come into contact with each other, fold the crimp piece with the upper press die and crimp the two, and cut it at the same time or before and after it. The bridge section is cut by the mechanism at a position near the connecting piece.

[0007]

【Example】

 The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a side view of the embodiment, in which the crimp terminal 11 is manufactured in a state in which the crimp pieces 12 are individually connected to the connecting pieces 13 via the strip-shaped bridging portions 14 having a length D. It is adapted to be sequentially conveyed onto the lower press die 15. An upper press die 16 that bends the crimping piece 12 in cooperation with the lower press die 15 is movably arranged above the lower press die 15, and one side of the lower press die 15 has a connecting piece 13 and a bridge. A slide cutter 17 for cutting between the portions 14 is installed slidably in the vertical direction. A groove 17a for fitting the connecting piece 13b is provided on the side of the slide cutter 17 on the lower press die 15 side, and the tip of the core wire 18a of the branch wire 18 arranged in the crimping piece 12 is located above the groove 17a. A regulation surface 17b for regulation is provided. Further, on the upper surface of the slide cutter 17, there is provided a mounting surface 17c on which the main wire 19 to be superposed on the branch wire 18 is mounted.

With such a configuration, when the core wire 18 a of the branch wire 18 and the exposed core wire 19 a of the main wire 19 are connected via the crimping piece 12 by using the crimping terminal 11, the connecting piece 13 slides. The crimping piece 12 is conveyed onto the lower press die 15 while being positioned in the groove portion 14a of the slit 14, and the tip portion 18b of the core wire 18a of the branch wire 18 is inserted into the crimping piece 12 and the regulating surface 17b of the slide cutter 17 is held. Is arranged so as to abut. The core wire 19a of the main wire 19 is laid on the core wire 18a of the branch wire 18 so as to extend over the mounting surface 17c of the slide cutter 17, and then the upper press die 16 descends to break the crimping piece 12. The core wires 18a and 19a are bent and crimped to each other.

Simultaneously or before and after that, the slide cutter 17 descends, and the bridging portion 14 is cut by the cutting portion 14a at a position near the connecting piece 13. At this time, the bridging portion 14 having the length D is left below the core wire 18a of the branch wire 18.

[0010]

[Effect of device]

 As described above, the core wire crimping device in the joint portion according to the present invention is cut while leaving the bridging portion, and the longitudinal end position of the core wire is made substantially the same as the bridging portion, thereby crimping the core wire. It can be easily positioned at a predetermined position in the piece, and prevents the core wire from protruding too much from the crimping piece.

[Brief description of drawings]

FIG. 1 is a side view showing a cross section of a part of an embodiment.

FIG. 2 is a perspective view of a crimped state.

FIG. 3 is a perspective view of a conventional crimp terminal.

FIG. 4 is a perspective view of a conventional example in a crimped state.

[Explanation of symbols]

 11 Crimping Terminal 12 Crimping Piece 13 Connecting Piece 14 Bridging Section 14a Cutting Section 15 Lower Press Mold 16 Upper Press Mold 17 Slide Cutter 17b Control Surface 18 Branch Wires 18a, 19a Core Wire 19 Main Wire

Claims (1)

[Scope of utility model registration request] 1. A lower press die that sequentially mounts crimping pieces connected to a connecting piece via strip-shaped bridging portions, and a tip of a first core wire in the crimping pieces with the tip end facing the bridging portion. An upper press die for accommodating and further accommodating a second core wire, after which the crimping piece is bent in cooperation with the lower press die to electrically connect the first and second core wires to each other by crimping. And a cutting mechanism for cutting the bridging portion on the side closer to the connecting piece,
A core wire crimping device in a joint portion, comprising: a regulating surface that regulates the tip end position of the second core wire to be approximately the same length as the remaining bridging portion.