JPH06537U - Electric wire bending machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an electric wire bending machine capable of bending electric wires of various thicknesses easily and with high dimensional accuracy without damaging the surface by the same device. [Structure] Main body 1 and movable ring 2 that can rotate around it
The projection 13 on the upper surface of the main body 1 and the projection 15 on the upper surface of the movable ring 2 are fixed in a polygonal shape in which the distance from the fitting hole to the side surface is changed according to the thickness of the electric wire W to be bent. Top 14
And the movable top 16 are attached. By changing the mounting direction of these, it is possible to correspond to the electric wires W of various thicknesses.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

The present invention relates to an electric wire bending machine capable of easily and accurately dimensionally bending electric wires having different cross-sectional areas of about 22 to 100 mm ² .

[0002]

[Prior art]

 Conventionally, when bending electric wires used for switchboards and the like, relatively thin wires have been bent using the fingernails, and relatively thick wires have been bent using the corners of a desk or the like. However, when a thin electric wire is bent using the nail of a thumb, there is a drawback that the fingertip becomes painful, and the shape of the electric wire is easily changed by an operator, so that the electric wire shape cannot be reproducible.

On the other hand, when a thick electric wire is bent using the corners of a desk, there is a defect that the surface of the electric wire is scratched. Further, when it is necessary to perform complex bending, dimensional accuracy cannot be obtained, so that the electric wire must be re-bent. Sometimes the shape went messed up and it was remade from the beginning, resulting in wasted quality, materials, and work time. Since thicker and shorter electric wires are difficult to bend, a method of cutting and bending them long and then cutting off the ends was used, resulting in wasted material.

[0004]

[Problems to be solved by the device]

 The present invention solves the above-mentioned conventional problems and provides an electric wire bending machine capable of easily bending a relatively thin electric wire and a comparatively thick electric wire without scratching the surface and with high dimensional accuracy. It has been completed.

[0005]

[Means for Solving the Problems]

 The present invention, which has been made to solve the above-mentioned problems, includes a main body and a movable ring that can rotate around the main body, and a protrusion provided on the upper surface of the main body and the movable ring, depending on the thickness of the wire to be bent. It is characterized in that a polygonal fixed piece and a movable piece having different distances from the fitting hole to the projection to the side surface are attached.

[0006]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. In FIG. 1, reference numeral 1 is a main body of the wire bending machine, and 2 is a movable ring that can rotate around the main body 1. The main body 1 comprises a cylindrical portion 1a in contact with the movable ring 2, a central flange portion 1b, and a lower end projection 1c. If the workbench has a vise, the main body 1 can be fixed by using the projection 1c. If the workbench does not have a vise, the projection 1c is fitted into the recess 3a on the upper surface of the holder 3 to It can be fixed to the workbench using the screw 4 at the bottom of 3. In order to prevent the recess 3a from shifting in the longitudinal direction, the movement preventing pin 5 on the upper surface of the holder 3 can be fitted into the hole 6 of the flange portion 1b of the main body 1.

The movable ring 2 is attached so as to be rotatable around the cylindrical portion 1 a of the main body 1, and has a handle 7. The rotation angle of the movable ring 2 can be read by a scale on the upper surface of the main body 1, but in the embodiment, a stopper ring 8 is attached above the flange portion 1b of the main body 1 in order to improve work efficiency. The position of the stopper ring 8 can be adjusted by loosening the bolt 9 and rotating it and then tightening the bolt 9 again at a predetermined position. Further, the stopper pin 10 on the upper surface of the stopper ring 8 comes into contact with the pin 11 on the movable ring 2 side so that the rotation of the movable ring 2 can be stopped at a predetermined position. Therefore, if the position of the stopper ring 8 is first set, then the rotation angle of the movable ring 2 can be regulated simply by rotating the handle 7.

A pin 12 that comes into contact with the inner surface of the electric wire W to be bent is provided at the center of the cylindrical portion 1a of the main body 1 described above. The pin 12 has a small diameter portion 12a and a large diameter portion 12b as shown by the one-dot chain line, and a columnar portion so that either end portion protrudes on the upper surface of the main body 1 depending on the thickness of the electric wire W. Replace with the hole of 1a.

In addition, a polygonal projection 13 for fitting a fixed top 14 is provided at an eccentric position of the cylindrical portion 1 a of the main body 1. A polygonal fixing piece 14 having a fitting hole 14a is fitted into the projection 13 and the side surface of the fixing piece 14 is applied to the outer surface of the base of the electric wire W to be bent. The distance from the fitting hole 14a to the four side surfaces of the fixed top 14 is changed according to the thickness of the electric wire. In the case of the embodiment, the four side surfaces have cross-sectional areas of 22 mm ² , 38 mm ² , 60 mm ² , respectively. It is configured to support four types of 100 mm ² electric wires. Then, the direction can be changed so that the side surface corresponding to the electric wire W contacts the electric wire W, and the protrusion 13 can be replaced. In addition, it is preferable to display the thickness of the electric wire on the fixed top 14 for easy identification.

Further, a projection 15 for the movable piece is also provided on the upper surface of the movable ring 2, and the polygonal movable piece 16 is replaced according to the thickness of the electric wire W in the same manner as described above. The movable top 16 also has different distances from the fitting hole 16a to the four side surfaces. The movable piece 16 is applied to the outer surface of the tip of the electric wire W to be bent.

In the embodiment, a rail 17 with a scale is provided on the side of the main body 1, and a movable table 18 is placed on the rail 17. The base 18 can be positioned by means of fixing thumbscrews 19. Further, a rotatable ate 20 is provided at the tip of the table 18 so that the base end face of the electric wire W to be bent is brought into contact with the ate 20 so that the bending position can be accurately determined. Reference numeral 21 is a pedestal for the bent electric wire W when performing complex bending.

[0012]

[Action]

 In order to bend the electric wire W with the electric wire bending machine of the present invention configured as described above, first, the upper and lower sides of the pin 12 are adjusted according to the thickness of the electric wire W, and the fixed top 14 and the movable comma 16 are connected to each other. Change the direction according to the thickness of W and insert it into the protrusion 13 and the protrusion 15 and adjust the position of the ate 20. Further, adjust the position of the stopper ring 8 according to the bending angle. Next, the handle 7 is operated to rotate the movable ring 2 until the side surface of the fixed piece 14 on the pin 12 side and the side surface of the movable piece 16 are substantially on the same straight line.

Next, the electric wire W to be bent is passed between the pin 12, the fixed piece 14 and the movable piece 16, and the base end surface of the electric wire W is applied to the ate 20 to determine the position. Then, when the movable ring 2 is rotated by the handle 7 until the pin 11 hits the stopper pin 10 of the stopper ring 8, the tip side of the electric wire W is forcibly pressed by the side surface of the movable piece 16 as shown in the drawing, and the pin 12 Can be bent around.

As described above, according to the present invention, since the fixed piece 14 and the movable piece 16 are used by changing their directions according to the thickness of the electric wire W and fitting them into the projection 13 and the projection 15, the thick electric wire W is used. In this case, the distance between the pin 12 and the side surface of the fixed piece 14 can be widened, and in the case of the thin wire W, the distance between the pin 12 and the side surface of the fixed piece 14 can be narrowed. Further, the side surface of the movable piece 16 can be aligned with the side surface of the fixed piece 14 to start the bending. Therefore, the electric wires W having various thicknesses can be bent by the same electric wire bending machine. Moreover, since the bending is performed around the cylindrical pin 12, the electric wire W is not damaged, and it is possible to bend the electric wire W from an accurate position by merely applying the base end face of the electric wire W to the ate 20. Further, once each part is set, a large number of electric wires W can be bent efficiently and accurately by only operating the handle 7. It should be noted that compound bending can be easily performed.

[0015]

[Effect of device]

 As described in detail above, the electric wire bending machine of the present invention has a polygonal fixed piece and a movable piece that change the distance from the fitting hole to the protrusion to the side surface according to the thickness of the wire to be bent. Since the cable is used, the wire can be easily and accurately bent regardless of the thickness of the wire. Further, the electric wire bending machine of the present invention does not have the risk of damaging the operator's nails as in the conventional case. Therefore, the present invention has an extremely large practical value as an electric wire bending machine that solves the conventional problems.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

[Explanation of symbols] 1 main body 2 movable ring 13 protrusion 14 fixed piece 14a fitting hole 15 protrusion 16 movable piece 16a fitting hole

Claims (1)

[Scope of utility model registration request] 1. A protrusion formed on a top surface of the main body and the movable ring, which comprises a main body and a movable ring capable of rotating around the main body, and a side surface from a fitting hole to the protrusion according to a thickness of an electric wire to be bent. An electric wire bending machine, which is equipped with a polygonal fixed top and a movable top with different distances.