JPH0982449A - Locating device of electric wire processing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locating device of an electric wire processing machine which makes automatic wire processing by performing location in good performance of a terminal and electric wire when a closed barrel terminal is to be attached by pressure to the end part of electric wire. SOLUTION: A terminal 1 is equipped with a cylindrical pressure attaching part 1b having an insert hole for electric wire, and a locating device 12 is equipped with a pair of guides 15 to be opened and closed. Each guide 15 is furnished with a terminal locating part which pushes the pressure attaching part 1b to guide it to the specified position on a pressure attachment bed 10 and hold it there. In such a way as split in two segments a tapered wire inserting guide path 17 is formed on the opposing surface of each guide 15 on the side with wire 3 to be inserted, wherein the guide path 17 is arranged concentrical with the center of the wire inserting hole in the pressure attaching part 1b held in the specified position on the bed 10 and spreading gradually toward the side with the core wire 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning device in a wire processing machine for positioning a wire and a terminal when crimping a so-called closed barrel terminal to the end of the wire.

[0002]

2. Description of the Related Art As a terminal to be crimped to an electric wire end whose coating is peeled off, an open barrel terminal having an upwardly open crimping portion or a closed barrel having a tubular crimping portion having an electric wire insertion port There is a terminal.

Conventionally, as an electric wire processing machine for crimping an open barrel terminal, an electric wire supply mechanism for sequentially supplying electric wires, a length measuring mechanism for measuring the electric wires at predetermined lengths, and cutting the electric wires at a predetermined length. A cutting and peeling mechanism that peels off the end cover, a crimping mechanism that crimps the terminal to the end of the wire, a wire transport mechanism that conveys the wire between the cutting and peeling mechanism positions and the crimping mechanism position, and the terminal is crimped. Equipped with a discharging mechanism for discharging the electric wire from the electric wire processing machine, and the crimping mechanism,
There has been a structure in which a terminal supply mechanism for supplying each terminal of the continuous terminals intermittently to the crimping position sequentially is appropriately provided in conjunction with the crimping operation.

In this electric wire processing machine, the coating portion at the end portions of the electric wires that are sequentially supplied is peeled by a cutting peeling mechanism, and then the wire end portion is crimped to the crimping portion of the terminal at the crimping mechanism position. Was said.

In the crimping process of this terminal, in the open barrel terminal, since the crimping portion is open upward, the wire end stripped from the upper side can be relatively easily placed at a predetermined position of the crimping portion of the terminal. It was possible to set it stably, and the electric wire processing was automated.

However, in the closed barrel terminal, if the center of the wire insertion opening of the crimping portion and the axis of the stripped core portion of the wire are not aligned, the core portion of the wire is properly inserted into the wire insertion opening. On the other hand, since the wire is easily bent, it is difficult to accurately position the wire side and the terminal side.Therefore, the wire processing is not automated, and the wire end is usually manually pressed. A method of performing a crimping process with a crimping machine after being inserted into the electric wire insertion port has been adopted.

[0007]

However, the method of manually inserting the end of the electric wire into the electric wire insertion port of the crimping portion is troublesome and has a drawback that the work efficiency is low.

[0008] Therefore, an object of the present invention is to provide a positioning device in an electric wire processing machine for automating the electric wire processing by properly positioning the terminal and the electric wire when crimping the closed barrel terminal to the end of the electric wire. It is in.

[0009]

Means for Solving the Problems According to the means for solving the above problems, a terminal includes a cylindrical crimp portion having an electric wire insertion port, and a stripped core wire portion of an electric wire end is inserted into the electric wire insertion port. A positioning device in an electric wire processing machine for performing a crimping process in cooperation with a crimping bed of a crimping mechanism and a crimping die, the positioning device includes a pair of positioning guide bodies that are opened and closed, and each positioning guide body is provided with A terminal positioning portion for guiding the crimping portion of the terminal to a predetermined position of the crimping bed during the closing operation and holding the crimping portion at a predetermined position of the crimping bed in a closed state of each positioning guide body, The core wire is concentric with the center of the wire insertion port of the crimping part held at a predetermined position of the crimping bed, on the facing surface of each positioning guide body on the side of the electric wire to be inserted from each terminal positioning part. Lies in that wire insertion guide path tapered to progressively flared side is formed respectively on the two-divided form.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 6, reference numeral 1 is a closed barrel terminal, one side of which has a flat connecting portion 1a and the other side of which is a cylindrical crimp. The structure is provided with the portion 1b. Then, as shown in FIGS. 4 and 5, the hole portion of the crimp portion 1b is configured as an electric wire insertion opening 1c into which the core wire portion 3a of the electric wire 3 is inserted.

Further, the connecting portions 1a of the terminals 1 are held by the carrier 4 with a predetermined space therebetween, and a so-called continuous terminal 5 having the terminals 1 in a continuous state is formed therein. In the present embodiment, the carrier 4 is composed of a double nylon sheet formed in a strip shape, and has a connecting portion 1 a of each terminal 1.
Has a structure in which it is sandwiched and held between double nylon sheets.

1 and 2 show the main part of the crimping mechanism 7 in the electric wire processing machine. The electric wire processing machine also measures the length of the electric wire supplying mechanism for sequentially supplying the electric wires 3 and the electric wires 3 at a predetermined length. A length measuring mechanism, a cutting and peeling mechanism that cuts the electric wire 3 and peels off the covering portion 3b at the end of the electric wire 3, and an electric wire conveying mechanism 8 that conveys the electric wire 3 between the cutting and peeling mechanism position and the crimping mechanism 7 position, The terminal 1 is provided with a discharging mechanism or the like for discharging the electric wire 3 that has been crimped from the electric wire processing machine.

Further, the crimping mechanism 7 is appropriately provided with a terminal supply mechanism which interlocks with the crimping operation of the crimping mechanism 7 and intermittently sequentially supplies each terminal 1 of the continuous terminals 5 to the crimping position.

The electric wire supply mechanism, the length measuring mechanism, the cutting and peeling mechanism, the electric wire conveying mechanism 8, the crimping mechanism 7, the discharging mechanism, the terminal supplying mechanism, etc. of the electric wire processing machine are conventional electric wire processing machines for open barrel terminals. It is configured to operate in the same manner as and to function in a substantially similar manner, and detailed description thereof will be omitted.

As shown in FIGS. 1 to 5, the crimping mechanism 7 includes a lower crimping bed 10 and an upper crimping die 11.
The pressure-bonding die 10 and the pressure-bonding die 11 cooperate with each other to perform the pressure-bonding treatment of the terminal 1 when the pressure-bonding die 11 is moved up and down.

Further, as shown in FIGS. 1 and 2, a positioning device 12 is mounted at the position of the crimping mechanism 7. The positioning device 12 is fixedly mounted on the crimping mechanism 7 side and its operation is performed. Air cylinders 14 having a pair of opening / closing arms 13 that are opened / closed by a pair, positioning guide bodies 15 coupled to the respective opening / closing arms 13 so as to project upward, and mounted on the upper ends of the respective positioning guide bodies 15. The terminal positioning body 16 is provided.

When the positioning device 12 is mounted, as shown in FIG. 3, the vertical contact lines of the facing surfaces 15a of the positioning guide bodies 15 facing each other are
The crimp bed 1 is arranged so as to coincide with the vertical direction of the crimp portion 1b of the terminal 1 set at a predetermined position, that is, the V groove portion 10a position as the crimp position.

Further, as shown in FIG. 2, each terminal positioning body 16 is constructed so as to be capable of projecting and retracting on the ascending / descending track of the crimping die 11, and as shown in FIG. 3 to FIG. In order to hold the crimping portion 1b at the position of the V groove portion 10a, an inclined terminal positioning portion 16a is formed so as to form an inverted V groove shape that faces the V groove portion 10a, at a portion facing the V groove portion 10a. ing.

When the air cylinder 14 is closed, the crimping portion 1b of the terminal 1 supplied near the V-groove portion 10a of the crimping bed 10 is pushed to a predetermined position of the V-groove portion 10a by the terminal positioning portion 16a of the terminal positioning body 16. The V-groove portion 10a and the terminal positioning portion 16a are moved in a closed state in which the facing surfaces 15a of the positioning guide bodies 15 are in contact with each other.
Thus, the crimping portion 1b is configured to be held in a positioning manner.

Further, as shown in FIGS. 1 to 3, the electric wire insertion port 1 is formed on the facing surface 15a of each positioning guide body 15.
An electric wire insertion guide path 17 which is concentric with the center of c is formed in two parts. This wire insertion guide path 17 is connected to the terminal 1
A wire holding portion 17a having a hole of the same diameter in the axial direction of the side,
It has a so-called funnel shape including a tapered positioning guide portion 17b which gradually expands to the side where the electric wire 3 is inserted.

At this time, the inner diameter of the wire holding portion 17a is slightly larger than the outer diameter of the wire 3.

The present embodiment is configured as described above, and the crimping operation of the terminal 1 at the position of the crimping mechanism 7 will be described.

The terminal 1 of the continuous terminal 5 is supplied to a predetermined position on the upper side of the crimping bed 10 by the operation of the terminal supply mechanism, and then the positioning guide body 15 in the open state is moved to the air cylinder 14.
It is closed sequentially by the closing operation of. By this closing operation of the positioning guide body 15, the crimping portion 1b of the terminal 1 is pushed and guided to a predetermined position by the terminal positioning portion 16a of each terminal positioning body 16, and is held in a predetermined positioning at the predetermined crimping position.

On the other hand, as shown in FIG. 2, the electric wire 3 whose end is stripped is conveyed by the electric wire conveying mechanism 8 to a portion facing the crimping position of the crimping mechanism 7, and the positioning guide body 15 is closed. When the crimping portion 1b is activated and positioned, the electric wire transport mechanism 8 operates so that the end portion of the electric wire 3 moves to the core wire portion 3
The wires are sequentially inserted into the wire insertion guide path 17 from the side a.

At this time, if the center of the wire insertion port 1c of the crimping portion 1b and the center of the core portion 3a are misaligned, they are sequentially guided by the inclined surface of the positioning guide portion 17b so as to become concentric as the wire 3 is inserted. Finally, the crimp part 1 in the concentric state
The core portion 3a is inserted into the wire insertion opening 1c of b.

In this state, the air cylinder 14 of the positioning device 12 is opened and both positioning guide bodies 15 are opened. In this open state, as shown in the phantom line in FIG. 4 and FIG. 5, both terminal positioning bodies 16 are retracted from the ascending / descending trajectory of the crimping die 11.

Then, the crimping dies 11 are lowered while the positioning guides 15 are open, and the crimping portion 1b is compressed and deformed by the cooperation of the crimping bed 10 and the crimping dies 11. The terminal 1 is crimped to the portion.

After that, the electric wire transport mechanism 8 pulls the electric wire 3 back to the initial position. At the time of this pullback, the connecting portion 1a of the electric wire 3 is pulled away from the carrier 4.

Thereafter, the pressure bonding operation is repeated in the same manner.

As described above, although the terminals 1 of the continuous terminal 5 are connected by the flexible carrier 4, the position of the terminal 1 supplied to the crimping position by the terminal supply mechanism is the position of the positioning device 12. The portion 16a enables accurate positioning at a predetermined crimping position.

Further, since the terminal positioning body 16 is mounted on the positioning guide body 15 and the electric wire insertion guide path 17 is formed on the positioning guide body 15, the crimping portion 1b of the terminal 1 is positioned at the same time as the positioning. The center of the wire insertion port 1c of the crimp portion 1b and the center of the wire insertion guide path 17 are concentric with each other, and the core wire portion 3a at the end of the wire 3 is formed.
The crimp portion 1b can be smoothly inserted into the electric wire insertion opening 1c.

Here, the closed barrel terminal 1 and the electric wire 3
There is an advantage that the processing of the electric wire crimped to the end can be automated and the work efficiency can be improved.

The shape of the terminal 1 and the structure of the continuous terminal 5 are not limited to the shape and structure of the above embodiment, and may be appropriately determined according to the purpose.

[0034]

As described above, according to the positioning device in the electric wire processing machine of the present invention, it is provided with a pair of positioning guide bodies which are operated to be opened and closed, and each positioning guide body is provided with the crimping portion of the terminal when the closing operation is performed. Each of the positioning guide bodies is provided with a terminal positioning portion that pushes and guides it to a predetermined position of the crimping bed and holds the crimping portion at a predetermined position of the crimping bed. One in which a taper-shaped wire insertion guide path that is concentric with the center of the wire insertion opening of the crimping part held at a predetermined position of the crimping bed and that gradually expands toward the wire to be inserted is formed in two parts. The crimping portion of the terminal can be accurately positioned at a predetermined position by the terminal positioning portion of the positioning device, and at the same time when the crimping portion of the terminal is positioned, the wire of the positioned crimping portion The center of the inlet and the center of the wire insertion guide path are concentric, the terminal and the wire can be positioned well here, and the crimping part of the core wire part of the wire end can be smoothly inserted into the wire insertion port. There is an advantage that the electric wire processing using the closed barrel terminal can be automated.

[Brief description of drawings]

FIG. 1 is a front view of essential parts showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a partially enlarged view of FIG. 1;

FIG. 4 is an explanatory diagram of the operation.

FIG. 5 is an explanatory diagram of the operation.

FIG. 6 is a perspective view of a continuous terminal.

[Explanation of symbols]

 1 Closed barrel terminal 1b Crimping part 1c Electric wire insertion port 3 Electric wire 3a Core wire part 3b Covering part 5 Continuous terminal 7 Crimping mechanism 8 Electric wire conveying mechanism 10 Crimping bed 11 Positioning device 14 Air cylinder 15 Positioning guide body 15a Opposing surface 16 terminal Positioning body 16a Terminal positioning part 17 Wire insertion guide path

Claims (1)

[Claims] 1. A terminal is provided with a tubular crimping portion having an electric wire insertion port, and a core wire portion of a wire end portion which is stripped off is inserted into the electric wire insertion port to cooperate with a crimping bed and a crimping die of a crimping mechanism. A positioning device for an electric wire processing machine that performs a crimping process by the action of the positioning device, which includes a pair of positioning guide bodies that are opened and closed. While pushing the guide to the position,
Each of the positioning guide bodies is provided with a terminal positioning portion that holds the crimping portion at a predetermined position of the crimping bed in a closed state. A taper-shaped electric wire insertion guide path that is concentric with the electric wire insertion port center of the crimping portion held at a predetermined position of the crimping bed and that gradually expands toward the core wire portion side is formed in two parts. Positioning device for electric wire processing machines.