JP2502205B2 - Electric wire bending machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire bending correction machine which is mainly used in an electric wire processing step and can easily cope with various electric wires having different thicknesses.

[0002]

2. Description of the Related Art FIG. 5 is a schematic view showing an electric wire processing process described in Japanese Patent Publication No. 64-5405. That is, the electric wire 65 passes through the pair of electric wire bending correction machines N arranged in the orthogonal direction, and the length is measured by the measuring roller 66,
It is sent to a cutting and automatic peeling machine (not shown) through the sending roller 67.

As shown in an enlarged view in FIG. 6, the electric wire bend correcting machine N is one in which a plurality of small rollers 68 are vertically and horizontally opposed to each other, and an electric wire 65 is inserted between them. The left and right rollers 68 are biased in the compression direction by spring members (not shown).

However, in the above-mentioned structure, since the compressing spring force is constant, when the electric wire 65 is thin, it may be deformed into a corrugated shape, and when it is thick, it may not be bent completely. Therefore, in the automatic peeling machine in the subsequent step, there is a problem that the insulating coating of the electric wire 65 cannot be removed or the conductor portion is scraped off.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide an electric wire bend correcting machine which can surely correct the bend even when the wire diameter changes.

[0006]

In order to achieve the above object, the present invention comprises a fixed support having one correction roller and a movable support having the other correction roller facing the correction roller. A means for urging the fixed support and the movable support in a direction of approaching each other, a cam rod penetrating the fixed support and the movable support, and a plurality of cam surfaces contacting both ends of the cam rod, An electric wire bend correcting machine is adopted which is constituted by two dial type cam bodies pivotally attached to the fixed support body and the movable support body.

[0007]

By operating the two dial type cam bodies, the distance between the fixed support and the movable support, that is, the distance between the opposing correction rollers can be selectively adjusted via the cam rod. Therefore, it can be applied to electric wires of various diameters. At the time of bending correction, both correction rollers are biased in the compression direction by the biasing means.

[0008]

1 is a front view showing an embodiment M of an electric wire bend correcting machine according to the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG. In the figure, 1 is a fixed support body on which a plurality of lower correction rollers 2 are axially supported, 3 is a movable support body on which the upper correction roller 4 is axially supported so as to face the lower roller 2, and 5 is An electric wire which is bent and corrected by passing between both rollers 2 and 4 is shown. The fixed support 1 and the movable support 3 are composed of a pair of guide rods 6,
An air cylinder 7 is connected via 6.

Further, a cam rod 8 is provided by penetrating the fixed support 1 and the movable support 3, and a dial type cam body for selecting an electric wire diameter having a plurality of cam surfaces 9 under the fixed support 1. 10 and a dial type cam body 11 for selecting the type of electric wire is rotatably and pivotally mounted on the upper part of the movable support body 3, and the cam surfaces 9, 12 of the respective cam bodies 10, 11 are pivotally mounted.
The end surfaces 8a and 8b of the cam rod 8 are in contact with each other.

The structure of the wire bending correction machine M will be described in more detail. The fixed support 1 is made of a metal material, and a rectangular lower cam is formed at the rear portion of the lower wall 14 of the rectangular columnar main body 13. The body pivot attachment part 15 is provided so as to project. The body 1
A plurality of screw holes 17 are provided in parallel on the upper portion of the front wall 16 of No. 3, and the bearing portion 19 of the lower correction roller 2 is fixed by a bolt 20 via a disc spring 18. Further, a pair of fixing holes 22 are provided in the upper wall 21 of the main body 13, and a pair of guide rods 6 are fixed to the fixing holes 22 with lock screws (not shown) or the like. An insertion hole 23 for the cam rod 8 is provided near the front wall 16 between both fixing holes 22.

Further, a commercially available air cylinder 7 having a rectangular housing 25 is fixed to the rear wall 24 of the main body 13 with bolts (not shown). The air cylinder 7 can pressurize the piston rod 27 in both expansion and contraction directions by switching a solenoid (not shown). A commercially available floating joint 30 is fastened to the tip screw portion 28 of the piston rod 27 via a lock nut 29.

The guide rod 6 and the cam rod 8 are
It is preferable that the cam rod 8 is formed of a metal material in a columnar shape, and particularly the cam rod 8 and the cam bodies 10 and 11 are hard to wear or a surface treatment is selected.

A pivot hole 32 is formed in the front wall 31 of the lower pivot portion 15, and a shaft portion 34 of the dial type cam body 10 for selecting an electric wire diameter is provided in the pivot hole 32 via a bush 33. To insert. The shaft portion 34 is provided with a circumferential groove 35, so that the pivot portion 1
The side wall 36 of No. 5 is provided with a screw hole (not shown) for the lock screw 37 for engaging the tip portion 37a with the circumferential groove 35.

The dial type cam body 10 is made of a metal material and has a cylindrical dial portion 40 and the dial portion 4.
It is composed of a cam portion 41 having a plurality of cam surfaces 9 integral with 0, and a shaft portion 34 protruding from the center of the cam portion 41. As shown in the rear view of the cam body 10 in FIG. 3, the cam surface 9 has a distance (notch height) h gradually from the center in the circumferential direction.
In this example, six faces are set in order to accommodate six types of wire diameters (cross-sectional areas of 0.2 to 2.0 mm ² are displayed on the dial portion). As shown in FIG. 2, the lower end surface 8a of the cam rod 8 that has passed through the insertion hole 23 of the fixed support 1 contacts the cam surface 9.

1 and 2, reference numeral 3 indicates a movable support. The movable support 3 is formed of a metal material, and a rectangular upper cam body pivoting portion 44 is provided on a rear portion of an upper wall 43 of a quadrangular prism-shaped main body 42, and a rear wall 45 of the main body 42 is provided.
Further, a receiving plate portion 48 for fixing the tip screw portion 46 of the floating joint 30 fastened to the air cylinder 7 with a nut 47 is provided in a protruding manner.

Below the front wall 49 of the main body 42, a plurality of upper correction rollers 4 are rotatably supported by bolts 51 via disc springs 50. In addition, a pair of through holes 5 in the vertical direction
2 is provided, and a bearing 53 for inserting the guide rod 6 is press-fitted into the through hole 52. Further, an insertion hole 54 for the cam rod 8 is provided near the front wall 49 between the pair of bearings 53.

The upper pivot portion 44 is fixed to the main body 42 by a bolt 55, and a front wall 56 is provided with a pivot hole 57 in the same manner as the fixed support body 1 side, and a bush 58 is provided in the pivot hole 57. A dial type cam body 11 for selecting the type of electric wire is rotatably and pivotally attached via. Reference numeral 63 is a lock screw that engages the distal end portion with the circumferential groove 60 of the shaft portion 59.

The dial type cam body 11 is similar to the cam body 10 for selecting the electric wire diameter in that the dial portion 61 and the cam portion 6 are provided.
2 and the shaft portion 59, and as shown in the rear view of the cam body 11 in FIG. 4, a plurality of cam surfaces 12 having different notch heights h are formed at four positions on the circumference of the cam portion 62. Has been formed. The letter AV displayed on the dial portion 61 means a low-voltage electric wire for an automobile, and AVS is also a thin-wall type, CAVS.
Means a compression conductor thin-wall type, and US means a compression conductor ultra-thin type low-voltage electric wire. The upper end surface 8b of the cam rod 8 contacts the cam surface 12.

After being assembled as shown in FIGS. 1 and 2, the rod 27 of the air cylinder 7 is pressed in the extending direction to set the gap between the upper and lower correction rollers 2 and 4, and the electric wire 5 is set and further contracted. The electric wire 5 is sandwiched between the rollers 2 and 4 by pressing in the direction. A biasing means such as a spring may be used instead of the air cylinder 7. Here, the distance s between the rollers 2 and 4 is determined by the cam rod 8 contacting and supporting the cam surfaces 9 and 12 of the two cam bodies 10 and 11 pivotally mounted on the fixed support body 1 and the movable support body 3. It is determined. The distance s can be adjusted by selectively rotating both cam bodies 10, 11.

According to this embodiment, twenty-four combinations are possible by combining the six cam surfaces 9 for selecting the wire diameter and the four cam surfaces 12 for selecting the wire type. Note that the notch height h and the number of the cam surfaces of the cam bodies 10 and 11 can be set appropriately, and the number of combinations can be increased or decreased accordingly.

[0021]

As described above, according to the present invention, it is possible to easily and finely adjust the distance between the correction rollers by operating the two dial type cam bodies, so that the present invention can be applied to electric wires of various diameters. Therefore, it is possible to surely correct the bend.

[Brief description of drawings]

FIG. 1 is a front view showing an electric wire bending correction machine according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a rear view showing a dial type cam body for selecting an electric wire diameter.

FIG. 4 is a rear view showing the dial type cam body for selecting the type of electric wire.

FIG. 5 is a schematic view showing a conventional electric wire processing step.

FIG. 6 is a front view showing a conventional wire bending correction machine.

[Explanation of symbols]

 1 Fixed Support 2, 4 Correction Roller 3 Movable Support 7 Air Cylinder 8 Cam Rod 9, 12 Cam Surface 10, 11 Dial Type Cam 27 Piston Rod M Wire Bending Correction Machine

Claims (1)

(57) [Claims] 1. A fixed support having one correction roller, a movable support having the other correction roller facing the correction roller, and a direction in which the fixed support and the movable support are brought close to each other. Two biasing means, a cam rod penetrating the fixed support and the movable support, and a plurality of cam surfaces contacting both ends of the cam rod, and two pivotally mounted on the fixed support and the movable support. An electric wire bending correction machine characterized by being configured with a dial type cam body.