JPH07296935A - Terminal-crimped electric wire transferring device - Google Patents

Abstract

PURPOSE:To prevent an electric wire crimped with a terminal from touching the inner surface of a wire clip to cause inclination of the terminal likely when the wire is transferred from a transfer hand to the clip. CONSTITUTION:A transfer hand 23 is furnished with a blade 25, which opens a pair of pinching arms 23 of a wire clop 15 when the hand has sunk, and a pair of grasping pawls 27 which are capable of being opened and closed and grasp an electric wire 9 with a terminal 10. The blade 25 is given a thickness T larger than the wire diameter and is provided at the tip with a recess 25a where the wire 9 comes in touch with.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device used for an automatic terminal crimping and inserting device, and more specifically, an electric wire with a terminal sandwiched by a pair of gripping claws is tilted at the terminal. The present invention relates to a transfer device that transfers the electric wire clip to the electric wire clip.

[0002]

2. Description of the Related Art A technique relating to an automatic terminal crimping and inserting apparatus for crimping terminals to both ends of an electric wire and inserting the crimped terminals into a terminal accommodating chamber of a connector housing is disclosed in Japanese Patent Laid-Open No. 5-2494.
No. 5, gazette and Japanese Patent Application No. 5-287966. FIG. 6 is a schematic diagram of a carrier of the automatic terminal crimping / inserting device, in which the second wire carrier 2 is arranged on the downstream side of the first wire carrier 1.

In the first electric wire carrier 1, a plurality of electric wire clips 4 are provided on a two-belt conveyor 3 at a predetermined pitch, and a tip cutting machine 5 and a terminal are provided outside the two-belt conveyor 3, respectively. Crimping machine 6, electric wire chuck 8 (Fig. 7
The terminal reversing device 7 having the (see (A)) is provided. The tip cutting machine 5 is a device for cutting the electric wires 9 to align the tip positions thereof, the terminal crimping machine 6 is a device for crimping the terminals 10 to both ends of the cut electric wires 9, and the terminal reversing device 7 is
This is a device that twists the electric wire 9 to reverse the direction of the terminal 10 by 180 degrees.

Transfer hands 11 are provided above the carry-out ends of the two-belt conveyors 3, respectively. The transfer hand 11 is provided with a pair of grip claws 12 that can move in the vertical and horizontal directions and that can be opened and closed, and a blade 13 that projects between the grip claws 12 (see FIG. 9).

The second electric wire conveyor 2 has a two-belt conveyor 1 having a narrower interval than the two-belt conveyor 3.
4, a plurality of electric wire clips 15 are provided at a predetermined pitch narrower than the arrangement interval of the electric wire clips 4. A connector housing 22 is positioned on the outer side of the two-belt conveyor 3 of the second electric wire carrier 2.

The structure of the electric wire clip 4 is the electric wire clip 15.
Since it is the same as,
Holder 1 fixed to the belt conveyor 14 with pins 28
Two pins 17 penetrate through 6, and the lower ends of the pair of holding arms 18 are pivotally attached to the pins 17, respectively. The pair of holding arms 18 that can be opened and closed are biased by a leaf spring (not shown) in the closing direction. An inclined surface 19 for insertion is formed at the upper end portion on the opposite surfaces of the pair of clamping arms 18, and below the inclined surface 19 for insertion, a projection 21 provided on the opposing surface of the clamping arm 18 has a concave shape. The wire holding portion 20 is formed (see FIG. 8).

When the connector housing 22 is a multi-pole type connector housing having upper and lower terminal accommodating chambers, since the upper and lower terminal accommodating chambers are symmetrical, the upper and lower terminal accommodating chambers are The electric wire 9 with one terminal 10 of the terminals 10 to be inserted is
The terminal 10 is turned upside down by being twisted by 80 degrees. The electric wire 9 is transferred from the terminal reversing device 7 to the electric wire clip 15 of the second electric wire carrier 2 by the transfer hand 11, and when the electric wire clip 15 reaches the connector housing 22,
The terminal 10 is inserted and locked in the connector housing 22.

Next, the operation of transferring the electric wire 9 twisted 180 degrees by the terminal reversing device 7 from the first transfer device 1 to the second transfer device 2 by the transfer hand 11 will be described.
The belt conveyor 3 rotates, and the wire clip 4 holding the end portion of the wire 9 with the terminal 10 moves to the right in FIG. 7A. When the two pairs of front and rear electric wire clips 4 reach the terminal reversing device 7 in which the electric wire chuck 8 is opened (see FIG. 7A), the electric wire chuck 8 is closed to clamp the electric wire 9 and the terminal reversing device 7 When is raised, the electric wire 9 held by the electric wire clip 4 having a weak clamping force is transferred to the terminal reversing device 7 (see FIG. 7B).

Next, the terminal reversing device 7 rotates 180 degrees,
The grip claw 12 is moved below the opened transfer hand 11.
Next, the transfer hand 11 descends to the position of the terminal reversing device 7, and the grip claws 12 close to grip the electric wire 9 (FIG. 7C).
reference). At this time, the tip of the blade 13 is in contact with the electric wire 9.

Next, the wire chuck 8 of the terminal reversing device 7 is opened, and then the transfer hand 11 is raised (see FIG. 7D), so that the wire 9 is transferred to the transfer hand 11. The transfer hand 11 horizontally moves to reach the electric wire clip 15 of the belt conveyor 14 (see FIG. 7E). next,
The transfer hand 11 descends, and the blade 13 causes the electric wire 9
Is pushed into the wire holding portion 20 of the holding arms 18 and 18 (see FIG. 9).

Next, the grip claws 12 are opened and the transfer hand 11 is opened.
Rises, moves horizontally, and returns to the old position shown in FIG. 7 (A). Thus, one cycle of the transfer operation of the electric wire 9 from the first transfer device 1 to the second transfer device 2 is completed. 18
In the case of the electric wire 9 which is not twisted by 0 degree, the terminal reversing device 7 does not rotate, but other transfer operations are the same as above.

[0012]

When the transfer hand 11 descends and pushes the electric wire 9 into the holding arms 18 and 18 at the tip of the blade 13, the electric wire 9 comes into contact with the inner surface of one holding arm 18. As a result, the electric wire 9 slightly rotates as indicated by an arrow R in FIG.
A degree of inclination is generated (see FIGS. 10 and 11). If the terminal 10 is tilted, there is a problem that the terminal 10 is not automatically inserted into the terminal housing chamber of the connector housing 22. The present invention is intended to solve such problems.

[0013]

In order to achieve the above object, the present invention provides an electric wire clip in which an inclined surface for insertion is formed at the tips of a pair of holding arms which are biased in a closing direction, and the electric wire. A pair of gripping claws movably provided in the direction of approaching and separating from the clip and capable of being opened and closed so as to hold the electric wire with a terminal when closed; and a transfer hand provided with a blade whose tip surface serves as a pressing surface of the electric wire. In the apparatus for transferring an electric wire with a terminal, the thickness dimension of the tip portion of the blade is larger than the diameter of the electric wire with a terminal. It is preferable that the pressing surface of the blade is formed as a concave surface with which the electric wire with the terminal contacts.

[0014]

In the electric wire transfer device with the terminal configured as described above, the transfer hand descends from above the pair of holding arms of the electric wire clip, the blade pushes the holding arms open, and the pressing surface of the blade is pressed. The pushed wire is inserted into the open clamp arm. Since the thickness of the blade tip is larger than the diameter of the wire, a gap wider than the diameter of the wire is created on the inner surface of the pair of holding arms pushed by the blade, and the wire does not come into sliding contact with the holding arm. , Because it is inserted in the clamping arm,
There is no risk of the electric wire turning. If the pressing surface of the blade is formed as a concave surface with which the electric wire with a terminal comes into contact, the concave surface serves as a friction surface for the electric wire, so that the certainty of preventing the electric wire from rotating further increases.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a main part of a transfer hand 23 before transferring an electric wire 9 to an electric wire clip 15, and FIG. It is a front view of the transfer hand 23 at the time of mounting. As shown in Figure 1,
The transfer hand 23 is provided with a drive unit 24 and a blade 25 fixed to a main body (not shown). Drive unit 24
Is for driving a pair of left and right open / close arms 26 in a direction in which they approach and separate from each other, and two grip claws 27 extending downward are provided on the lower surfaces of both open / close arms 26.

The grip claws 27 are positioned in front of and behind the blade 25, and the left and right distance C ₁ between the tip ends of the grip claws 27 is smaller than the distance C ₂ between the pair of open / close arms 25. Therefore, the grip claw 27 does not interfere with the blade 25 even when the wire 9 is gripped. The thickness T of the tip of the blade 25 is larger than the diameter of the electric wire 9 (see FIG.
), A concave surface 25a is formed on the tip surface of the blade 25.

The first electric wire carrier 1, the terminal reversing device 7,
The second electric wire transport device 2, the plurality of electric wire clips 15 provided on the belt conveyor 14 and the like are the same as in the conventional case. Next, the electric wire 9 with the terminal 10 is attached to the transfer hand 2
The operation of transferring from 3 to the wire clip 15 will be described.

As shown in FIG. 7E, the transfer hand 23 holding the electric wire 9 with the terminal 10 descends from above the pair of holding arms 18 of the electric wire clip 15, and the blade 25 inserts the holding arm 18. The clamping arm 18 is pushed open by hitting the inclined surface 19 for use, and the electric wire 9 pressed by the pressing surface 25a of the blade 25 is inserted into the opened clamping arm 18 (FIG. 4).
(See (A)).

Since the thickness T of the tip of the blade 25 is larger than the diameter of the electric wire 9, the distance between the inner surfaces of the pair of holding arms 18 pressed by the blade 25 is wider than the diameter of the electric wire 9. Electric wire 9 held at the approximate center of the concave surface 25a
Is inserted into the wire holding portion 20 without contacting the inner surface of the holding arm 18. Next, when the transfer hand 23 rises, the electric wire 9 with the terminal 10 is clamped by the pair of clamping arms 18 (see FIG. 4B).

Therefore, there is no risk that the electric wire 9 will rotate due to the frictional resistance of the inner surface of the holding arm 18, and the terminal 10 will be held in a posture capable of being inserted into the terminal accommodating chamber of the connector housing 22 (see FIG. 5). The electric wire 9 is changed to 18 by the terminal reversing device 7.
When it is twisted by 0 degree, the posture of the terminal 10 in FIG. 5 is held in the upside down state.

[0021]

Since the present invention is configured as described above, when the electric wire with the terminal is transferred from the transfer hand to the electric wire clip, the inner surface width of the electric wire holding portion opened by the blade is the diameter of the electric wire. The inserted wire does not come into contact with the inner surface of the wire holding part. Therefore,
The problem of the terminal tilting has been resolved, and the terminal is now reliably and automatically inserted into the connector housing. If the pressing surface of the blade is formed as a concave surface with which the electric wire with a terminal comes into contact, the certainty of preventing the electric wire from rotating further increases.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a transfer hand before transferring an electric wire to an electric wire clip.

FIG. 2 is a front view of a transfer hand during electric wire transfer.

FIG. 3 is a perspective view of a main part of a blade.

FIG. 4 (A) and FIG. 4 (B) are explanatory views of an electric wire transfer operation.

FIG. 5 is a front view of the electric wire clip on which the terminals are transferred without tilting.

FIG. 6 is a perspective view of an automatic terminal crimping / inserting apparatus equipped with the electric wire transfer device with terminals of the present invention.

FIG. 7A to FIG. 7E are explanatory diagrams of the transfer operation.

FIG. 8 is a cross-sectional view of an electric wire clip holding an electric wire.

FIG. 9 is an explanatory diagram illustrating a problem that the electric wire rotates when the electric wire is transferred.

FIG. 10 is a perspective view illustrating a state in which a terminal of the electric wire has been tilted after being transferred.

11 is a front view of FIG. 10.

[Explanation of symbols]

 9 Electric Wire 10 Terminal 14 Belt Conveyor 15 Electric Wire Clip 18 Clamping Arm 19 Inclined Surface for Inserting 20 Electric Wire Clamping Section 23 Transfer Hand 25 Blade 25a Concave Surface 27 Gripping Claw

Claims (2)

[Claims] 1. An electric wire clip in which an inclined surface for insertion is formed at the tips of a pair of holding arms urged in the closing direction, and a movable clip provided in the contacting and separating direction of the electric wire clip so as to be opened and closed. A transfer device for an electric wire with a terminal, comprising: a pair of gripping claws for sandwiching the electric wire with a terminal when provided and a transfer hand provided with a blade whose front end surface serves as a pressing surface of the electric wire. A transfer device for an electric wire with a terminal, wherein a thickness dimension of a portion is made larger than a diameter of the electric wire with a terminal. 2. The transfer device for an electric wire with a terminal according to claim 1, wherein the pressing surface of the blade is formed as a concave surface with which the electric wire with a terminal comes into contact.