JPH06105429A - Exfoliation of insulated cable - Google Patents

Abstract

PURPOSE:To raise the accuracy in adjustment of the quantity of bite into the insulator for a cable of an exfoliating edge and facilitate it. CONSTITUTION:A cable holder 11 and a pair of exfoliating edges 12a and 12b are provided on a device base 10, and these exfoliating edges 12a and 12b in a pair strip off the insulator of an insulated cable P, being brought close to or separating from each other at the same stroke by an air cylinder 15. The stroke is adjusted by the quantity of projection from a mount 13a of an adjusting bolt 14 being screwed in the exfoliating edge mount 13a. An adjusting gear 18 and a fixed gear 17 are fixed to the adjusting bolt 14, and inside the exfoliating edge mount 13a, a stopper engaging with the fixed gear 17 is provided capably of advance to and retreat from the fixed gear 1 7. A stepping motor 24 is brought into contact with or separated from the adjusting gear 18 by an air cylinder 23, and by its approximation, a pinion 26 engages with the adjusting gear 18, and by a motor 24, the adjusting bolt 14 is rotated. At this time, the stopper is pressed by a pressing piece 22, and the stopper and the fixed gear 17 come off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to insulation stripping of an insulated wire, and a method and apparatus for adjusting the amount of the stripping blade biting into the insulation.

[0002]

[Technical background] In general, automatic insulation peeling of insulated wires is shown in Fig. 1.
This will be described as follows. That is, on the device base 10, the insulated wire P is arranged in order in the length direction of the insulated wire P, and the pair of peeling blades 12a and 12b facing each other with the insulated wire P interposed therebetween are arranged. To lower the wire P to grip the wire P, and in that state, the peeling blades 12a and 12b are brought close to each other to cause the cutting edge to bite into the insulation of the wire end and pull back, thereby stripping the insulation, Insulation core) is exposed (see Examples).

[0003]

In this peeling device, when the thickness of the electric wire P changes, the peeling blades 12a, 12b
It is necessary to adjust the amount of insulating bite, that is, the contact / separation stroke of the peeling blades 12a and 12b.
Generally, as shown in FIGS. 1 and 7, the mounting body 1 of the peeling blade 12a is mounted.
Adjusting the screwing amount of the adjusting screws (bolts) 14 and 34 threaded through 3a, that is, the protruding amount from the mounting body 13a,
Adjustment screws 14 and 34 when the peeling blades 12a and 12b approach each other
This is done by adjusting the time of contact between the tips 14a and 34a of the peeling blade base 15 (see FIG. 3).

As shown in FIG. 7, adjustment of the conventional adjusting screw 34 is performed by removing the screw from a hexagonal bolt, turning the screw 34 by a required amount with a spanner or the like and adjusting the screw 34 to a fixed position, and then using a nut 35. It is locked.

The screwdriver using such a wrench is inaccurate and cannot be adjusted accurately, and the operation is troublesome. Incorrect stroke adjustment of the peeling blades 12a and 12b leads to damage to the insulating core wire or the core wire.

An object of the present invention is to improve the accuracy of stroke control of the above-mentioned peeling blade and to facilitate it.

[0007]

In order to solve the above problems, in the present invention, in the insulation separation of the above-mentioned insulated wire, the stroke adjusting bolt of the separation blade is rotated by a stepping motor, and the motor is used. The control unit controls the number of revolutions of the blade to adjust the proximity distance (stroke) of the pair of peeling blades to switch the bite amount of the blade into the insulation.

As a device capable of carrying out the method, the pair of peeling blades are attached to and separated from the peeling blade base provided on the device base via the mounting body and movable in the insulated wire length direction. The adjustment bolt and the fixed gear are fixed to the adjustment bolt, and a stopper that engages with the fixed gear is provided on the peeling blade mounting body so that the fixed gear can advance and retreat. The stepping motor shaft pinion is positioned on the same line as the adjusting gear when the pair of separating blades is opened, and can engage with the adjusting gear. Can be adopted.

[0009]

According to the present invention thus constructed, the rotation speed of the adjusting bolt is determined by the number of pulses input to the stepping motor. Therefore, the stroke of the peeling blade can be adjusted by controlling the stepping motor, and the number of rotations of the stepping motor can be accurately adjusted even if it is extremely small.

The adjustment is performed after removing the stopper from the fixed gear, moving the stepping motor toward the peeling blade mounting body, and engaging the pinion with the adjusting gear.

When the adjustment is completed, the stepping motor is released and the stopper is engaged with the fixed gear to lock the adjusting bolt. In this state, the normal insulation peeling action is performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a pair of peeling blades 12a, 12b are arranged on a device base 10 in the lengthwise direction of an insulated electric wire P so as to face each other with the electric wire gripping tool 11 and the insulated electric wire P interposed therebetween.
The electric wire gripping tool 11 moves back and forth toward the insulated electric wire P by the air cylinder 11a, and the electric wire P is attached to the pedestal 11b.
Grip by pressing.

The peeling blades 12a and 12b are attached to the base 15 through attachment bodies 13a and 13b, and the base 15
An air cylinder having upper and lower plungers 15a and 15b is incorporated therein. The plunger 15a,
Mounting bodies 13a and 13b are fixed to 15b, and the peeling blades 12a and 12b move and come into contact with and separate from each other by the same stroke by an air cylinder. The peeling blade base 15 is the air cylinder 1.
It is supported by 6 and moves back and forth.

One mounting body 13a is divided into upper and lower parts,
The adjusting bolt 14 is screwed through the lower piece. About one third of the lower part of the adjusting bolt 14 is an external thread, and a fixed gear 17 is fixed in the middle and an adjusting gear 18 is fixed to the upper end by a key 14b (see FIGS. 4 and 5).

As shown in FIGS. 4 and 5, the fixed gear 17 is vertically movable in a recess 17a between upper and lower pieces of the mounting body 13a, and a stopper 19 is fitted in the recess 17a. The stopper 19 is biased toward the fixed gear 17 by the spring 20. The stopper 19 is plate-shaped, and the inner surface 19a of the semicircular recess that fits into the fixed gear 17 is formed on the same tooth surface as the tooth surface of the fixed gear 17, and when the stopper 19 presses against the fixed gear 17, the tooth surface changes. The rotation of the fixed gear 17, that is, the adjustment bolt 14 is locked by meshing with each other.

On the opposite side of the stopper 19 in the recess 17a of the mounting body 13a, a release piece 21 is movably fitted toward the fixed gear 17. Usually, this release piece 21
As shown in FIG.
When it is pushed to the right together with it, and is pushed to the left by a pressing piece 22 to be described later, as shown in FIG. 5, the stopper 19 is pushed to the left, the engagement between the stopper 19 and the fixed gear 17 is released, and the adjustment bolt 14 rotates. Will be free. Release piece 21
The pin 21a and the elongated hole 17b of the mounting body 13a are fitted together to prevent the pin from coming off.

An air cylinder 23 is mounted above the air cylinder 16 of the apparatus base 10. The stepping motor 2 is attached to the plunger of the air cylinder 23.
Four mounting bases 25 are provided. A pinion 26 is fixed to the shaft of the stepping motor 24, and the pinion 26 adjusts the gear 1 when the pair of peeling blades 12a and 12b are opened.
It is on the same line as 8.

The mounting base 25 is also provided with a pressing piece 22 on the same line as the releasing piece 21 when opened, and the peeling blade mounting body 13a is pulled by the air cylinder 16 as shown by the chain line in FIG. When the air cylinder 23 pushes out the mounting base 25, the pinion 26 engages with the adjustment gear 18, and the pressing piece 22 pushes the releasing piece 21 so that the stopper 19 and the fixed gear 17 move. Remove the mesh.

When the stepping motor 24 rotates in this state, the adjusting bolt 14 rotates via the pinion 26 and the adjusting gear 18, and the amount of protrusion of the lower end 14a from the lower surface of the mounting body 13a changes. That is, the peeling blade 12a,
The stroke of 12b is adjusted.

Here, the adjustment gear 18 and the fixed gear 17 have the same number of teeth, and 360 degrees / (motor 24
Step angle) × (number of teeth of the pinion 26) = integer, for example, step angle: 10 degrees, number of teeth: 36, which allows the fixed gear 17 to move to the stopper 19 at any rotation angle of the motor 24. Stop at the position where it meshes with the teeth. The degree of adjustment of the adjusting bolt 14 depends on the adjusting bolt 1
It is determined by the screw pitch of 4 and the one step angle of the motor 24, and the number of teeth of the various gears 17 and 18, the pinion 26 and the stopper 19 is determined based on the determined values.

As shown in FIG. 6, the stepping motor 24 is connected to a controller C via a motor driver D, and the signal from the controller C causes the stepping motor 24 to rotate left and right as required. The setting device A, the electric wire selector B, and the display device E are connected to the controller C.
By setting the approach distance (insulation bite depth) of 2a and 12b while observing the display E, and setting it as a wire of quality A, for example, by setting it as quality A, control is performed. Vessel C remembers it. Similarly, quality B to D
Set.

Therefore, the operator can perform the required insulation peeling by pressing the corresponding button of the wire selector B depending on the type of the insulated wire P. That is, by this button operation, the controller C causes the motor 24 to rotate in the normal and reverse directions, moves the adjusting bolt 14 forward and backward, and causes the desired peeling blade 1 to move.
The amount of insulation digging (strip amount) of 2a and 12b.

This embodiment is constructed as described above and is usually used as an insulating stripper for a terminal (plug) mounting machine to the insulated electric wire P.
As indicated by the arrow, the aligned electric wires P are guided from the lateral direction.

Then, the electric wire P is grasped by the grasping tool 11, and the peeling blades 12a and 12b descend to bite into the insulation. In this state, the air cylinder 16 moves to the right to peel off the insulation. take. By repeating this action, insulation feeding of the fed insulated wire P is continuously performed, and the wire P shifts to the next terminal crimping step.

To adjust the stroke of the peeling blades 12a and 12b by changing the type of the insulated wire P, the controller C is used.
Is operated to retreat the peeling blade base 15 to the right and to move the stepping motor 24 to the left to engage the pinion 26 with the adjusting gear 18 and to move the stopper 19 and the fixed gear 17 together as shown by the chain line in FIG. This is done by releasing the mesh and operating the wire selector B and the like.

In the embodiment, the fixed gear 19 is fixed / released by the spring 20 and the pressing piece 22. However, the stopper 19 may be directly moved by an air cylinder. Also, the stepping motor 2
4 can also be directly attached to the attachment body 13a.

[0027]

As described above, according to the present invention, the stepping motor is used to adjust the amount of insulating bite of the peeling blade, so that the accuracy of the adjustment is improved and the operation thereof is facilitated.

Further, if the stepping motor is controlled by the controller, the above-mentioned operation becomes simpler and the working efficiency is dramatically improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a partial plan view of the embodiment.

FIG. 3 is a partial front view of the embodiment.

FIG. 4 is a cutting plan view for explaining the operation of the embodiment.

FIG. 5 is a cutting plan view for explaining the operation of the embodiment.

FIG. 6 is an operation explanatory diagram of the embodiment.

FIG. 7 is a partial perspective view of a conventional example.

[Explanation of symbols]

 10 Device Base 11 Electric Wire Gripping Tool 11a, 16, 23 Air Cylinder 11b Cradle 12a, 12b Peeling Blade 13a, 13b Peeling Blade Mounting Body 14 Adjustment Bolt 15 Peeling Blade Base 17 Fixed Gear 18 Adjustment Gear 19 Stopper 20 Spring 21 Release Piece 22 Pressing piece 24 Stepping motor 25 Stepping motor mounting base 26 Pinion A Setting device B Electric wire selector C Controller D Motor driver E Indicator P Insulated electric wire

Claims (2)

[Claims] 1. A pair of peeling blades 12a, 12b from both sides of the insulated electric wire P for holding the insulated electric wire P to insulate the end of the electric wire.
The pair of peeling blades 12a, 12b for stripping the insulation by pulling in and pulling in the wire length direction. When adjusting the contact distance, the adjustment bolt 14 is rotated by the stepping motor 24, the rotation speed of the motor 24 is controlled by the controller C, and the proximity distance of the pair of peeling blades 12a, 12b is adjusted. A method of adjusting the amount of cutting of the blades 12a, 12b into the electric wire terminal insulation. 2. The apparatus base 10 is provided with a wire gripping tool 11 and a pair of peeling blades 12a, 12b facing each other with the insulated wire P interposed therebetween in order along the length of the insulated wire P. The gripper 11 has an insulated wire P on the device base 10.
The pair of peeling blades 12a, 12b are attached to the mounting bodies 13a, 13
b, the insulated wire P is provided on the device base 10 through
The peeling blade base 15 that is movable in the lengthwise direction is attached so that its blade edge can come into contact with the peeling blade mounting body 13a.
The adjusting bolt 14 in the contacting / separating direction of 2b is screwed in so that the tip of the adjusting bolt 14 can come into contact with the peeling blade base 15 so as to come into contact therewith.
The peeling blade mounting body 13a is provided with a stopper 19 that meshes with the fixed gear 17 so as to be able to move forward and backward with respect to the fixed gear 17, and a stepping motor 24 can be attached to and separated from the device base 11 toward the peeling blade mounting body 13a. The pinion 26 of the shaft of the stepping motor 24 is attached to the pair of peeling blades 12.
It is located on the same line as the adjusting gear 18 when a and 12b are opened, and is capable of meshing with the adjusting gear 18.