JP3119432B2 - Wire sheath removal device with trimming mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing a wire covering provided with a trimming mechanism used in manufacturing a wire with terminals constituting a wire harness.

[0002]

2. Description of the Related Art Conventionally, an electric wire trimming device and a sheath removing device have been installed independently. FIG. 7 shows a conventional trimming device a. When the electric wire 31 is intermittently transported in front of the device a with the electric wire 31 locked by the electric wire clip 32, the trimming device main body 33 moves forward as indicated by the arrow.
Then, the apparatus main body 33 stops at a position where the pair of upper and lower trimming blades 34 has reached a predetermined trimming length (the length L ₁ from the wire clip 32). At this position, the electric wire retainers 35, 35 and the trimming blades 34, 34 are simultaneously closed to perform trimming.

When the trimming is completed, the wire clip 32 is intermittently moved by a predetermined distance by a transport device (not shown). Then, as shown in FIG. 8, the apparatus main body 36 of the coating removing apparatus b moves to the trimmed electric wire 31 'side as indicated by the arrow. Apparatus main body 36 stops at a desired position by the stepping motor 37 and the ball screw 38, the peeling length L ₂ can be set freely. In this position, the peeling blades 34 ', 34' are closed while the electric wires 31 'are guided by the electric wire retainers 35', 35 ', and the device main body 36 is retracted in the state opposite to the arrow in a state of being cut into the insulating coating. Thereby, the electric wire 31 'is peeled.

[0004]

Conventionally, two devices such as a trimming device a and a coating removing device b are used before the terminal crimping, so that the installation space is large and the cost is increased. However, there is a problem that the trimming length cannot be freely set. The present invention has been made in view of the above problems, and an object of the present invention is to provide an electric wire coating removing apparatus having a trimming mechanism that can perform trimming and coating removal by one unit and can save space and cost. And

[0005]

In order to achieve the above object, according to the present invention, an apparatus main body is provided so as to be capable of moving back and forth in parallel with an axis of the device, facing a terminal portion of the electric wire.
The apparatus main body is provided with a pair of upper and lower wire holders and a pair of upper and lower wire cutters, a lifting device for simultaneously opening and closing these wire holders and the wire cutters, and a means for moving the wire cutters back and forth in parallel with the axis. in the coating removing apparatus, characterized in that the lifting means independently of the provided lifting means of the wire cutter to adjust the output size of the wire cutter from a wire clamping position by the wire retainer.

According to the present invention, a trimming mechanism and a peeling mechanism are provided side by side in one apparatus, and the mechanism for moving the apparatus body forward and backward with respect to the electric wire during trimming and peeling is the same. Can perform both trimming and peeling. Thereby, space saving and cost reduction of the apparatus can be reliably achieved.

[0007]

FIG. 1 is a side view of a coating removing apparatus according to an embodiment of the present invention. In FIG. 1, a coating removing device A is a device main body 1 which can be freely moved toward and away from an electric wire clip 32.
And a pair of upper and lower electric wire holders 2 and 2 mounted on the apparatus main body 1 so as to be able to move up and down, and a pair of upper and lower electric wire cutters 3 and 3 mounted so as to be able to move up and down and advance and retreat.

The apparatus main body 1 has a nut portion 4 at a lower end thereof. The nut portion 4 is screwed into a ball screw 6 which is rotated by the driving of a stepping motor 5. It moves forward and backward with respect to the wire clip 32 like a wire. The apparatus body 1 has a frame plate 7 on its front surface.
A vertical guide groove 8 is provided on the side surface, and an opening / closing cylinder 9 for opening and closing the electric wire retainers 2 and 2 is provided at the inner rear.
A peeling cylinder 10 for moving the electric wire cutters 3 and 3 forward and backward is provided.

Reference numeral 11 denotes a support arm extending horizontally from the base end of the upper and lower wire retainers 2. The free end of the support arm 11 is slidably engaged with the vertical guide groove 8 via a guide roller 12, The intermediate part of the support arm 11 is a joint head 13
Is slidably supported with respect to. That is, the joint head 13 has the first slide groove 1 on the upper (or outer) side.
4, has a second slide groove 15 in the lower (or inside),
An intermediate portion of the support arm 11 is slidably mounted in the second slide groove 15. Also, joint head 13
A cutter air cylinder 16 that raises and lowers the cutter 3 is mounted on the front surface of the device 1. A ring holder 18 is fixed to the center of the guide post 17, and the ring holder 18 is attached to the cylinder 1 for peeling.
0 piston rod 19.

On the other hand, one end of the driven side link 20 is inserted into the first slide groove 14 of the joint head 13 by a roller 21.
Are slidably connected via a. Follower link 20
Is pivotally connected to the apparatus main body 1 by a shaft 22, and the other end is connected to one end of a T-shaped drive side link 24 via an intermediate link 23 by a pin 25, and the center of the drive side link 24 is It is connected to a piston rod 26 of the opening / closing cylinder 9.

Next, the trimming of the electric wire will be described with reference to FIGS. FIG. 2 shows a side view of the coating removing apparatus A in a trimming start state, and the upper and lower electric wire holders 2, 2 and the electric wire cutters 3, 3 are both open. In this state, the electric wire 31 is inserted in front of the device A with the electric wire clip 32.
When supplied by the apparatus main body 1 is advanced toward the wire 31 as indicated by an arrow by a stepping motor 5 and the ball screw 6 is stopped at a position of a predetermined trimming length L _1. Setting the trimming length L ₁ is optional. Then, at this position, trimming is performed by the wire cutters 3 and 3 while holding the terminal portion of the wire 31 by the upper and lower wire retainers 2 and 2.

That is, as shown in FIG. 3, when the opening / closing cylinder 9 is operated and its piston rod 26 extends, the driven side link 2 and the intermediate link 23 cause the driven side link 2 to move.
0 rotates around the shaft 22 as indicated by an arrow P, and
7, the upper joint head 13 is lowered and the lower joint head 13 is raised, so that the upper and lower wire holders 2, 2 are closed, and the wires 31 are clamped.

[0013] upper and lower wire cutter 3,3 descent of the upper and lower joint head 13, from which follows the rise and shear the wire 31 at the position of the trimming length L ₁ (trimming). At this time, the wire cutter 3 is lowered (or raised) in advance by the operation of the cutter air cylinder 16, as shown in FIG. 6 (A), the cutter out dimension H ₁ is wire-pressing second end surface 2a, i.e. wire previously set to be longer than the diameter of the wire 31 from the clamping position H ₀ of the.

Next, peeling of the electric wire will be described with reference to FIGS. FIG. 4 shows a side view of the peeling start state, in which the upper and lower wire holders 2, 2 and the wire cutters 3, 3 are both open. That is, after the wire retainers 2 and 2 and the wire cutters 3 and 3 return to the original state (FIG. 2),
Advanced toward the wire 31 in the same manner as described above, and stops at a position of a predetermined peeling length L _2. Configuring the peeler length L ₂ is arbitrary. Then, the peeling in the set simultaneously with or immediately after a length L _2, wherein the actuating the cutter air cylinder 16 in the same manner, as shown in FIG. 6 (B), the cutter out clamping position of the dimension H ₂ is wire It is set so as to be longer than H ₀ by the thickness t of the insulating coating of the electric wire 31.

In FIG. 5, as in the case of FIG. 3, the operation of the opening / closing cylinder 9 causes the upper joint head 1 to move.
3 goes down, the lower joint head 13 goes up,
The upper and lower wire retainers 2 and 2 are closed to clamp the wire 31. The wire cutter 3,3 vertical clamp and at the same time the wire 31 is cut into the insulating coating of the amount corresponding wires 31 of the dimension H ₂ leaving the cutter, to partially cut. Therefore, when the peeling cylinder 10 is operated and its piston rod 19 is retracted, the guide column 17 is also retracted, so that the wire cutter 3 is also retracted by the joint heads 13 externally inserted at the upper and lower ends of the guide column 17. And then peeling is performed. After the peeling is completed, the operation is returned to the initial state in FIG. 2 by the reverse operation.

[0016]

As described above, according to the present invention,
Since the trimming and coating removal of the electric wire can be performed by one device, the space for the conventional trimming device and the coating removing device can be saved, and the production cost can be significantly reduced. In addition, by integrating the trimming device and the coating removing device, the tact time when trimming and coating removing the electric wire can be substantially reduced, and the productivity can be increased. Furthermore, unlike conventional trimming devices,
The trimming length can be adjusted arbitrarily.

[Brief description of the drawings]

FIG. 1 is a side view of an electric wire sheath removing apparatus having a trimming mechanism according to an embodiment of the present invention.

FIG. 2 is a side view showing a process of starting trimming by the apparatus of FIG. 1;

FIG. 3 is a side view showing a final step of FIG. 2;

FIG. 4 is a side view showing a step of starting peeling by the apparatus of FIG. 1;

FIG. 5 is a side view showing a final step of FIG. 2;

6 (A) and 6 (B) are explanatory views of the protrusion dimensions of the wire cutter 3 with respect to the wire presser 2 during trimming and peeling, respectively.

FIG. 7 is a side view of a conventional trimming device.

FIG. 8 is a side view of a conventional peeling apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 2 Electric wire holding 3 Electric wire cutter 5 Stepping motor 6 Ball screw 8 Vertical guide groove 9 Opening / closing cylinder 10 Peeling cylinder 11 Support arm 12 Guide roller 13 Joint head 14 First slide groove 15 Second slide groove 16 For cutter Air cylinder 17 Guide column 18 Ring holder 20 Follower link 21 Roller 23 Intermediate link 24 Drive link

Claims (1)

(57) [Claims] An apparatus main body is provided so as to be able to advance and retreat in parallel with an axis thereof opposite to a terminal portion of an electric wire, and a pair of upper and lower electric wire holders and a pair of upper and lower electric wire cutters are provided on the apparatus main body. And an elevating means for simultaneously opening and closing the wire cutter and a means for moving the wire cutter forward and backward in parallel with the axis, wherein the wire cutter from the wire clamp position by the wire presser independently of the elevating means. A wire cutter removing means for raising and lowering a wire cutter for adjusting an output dimension of the wire.