JPH06536U - Electric wire bending machine - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an electric wire bending machine capable of easily bending electric wires of various thicknesses without damaging the surface and with high dimensional accuracy. [Structure] Main body 1 and movable ring 2 that can rotate around it
The main body 1 is provided with a pin 12 in contact with the inner surface of the electric wire W at the center of the upper surface thereof, and a fixed piece 14 is provided at the eccentric position. A movable piece 16 is provided on the upper surface of the movable ring 2, and the electric wire W is bent around the pin 12 by the fixed piece 14 and the movable piece 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

The present invention relates to an electric wire bending machine capable of easily and accurately bending an electric wire having a cross-sectional area 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, has a pin for contacting the inner surface of an electric wire at the center of the upper surface of a main body, a fixed piece at an eccentric position, and an upper surface of a movable ring capable of rotating the main body It is characterized by the provision of a movable top.

[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 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 a bolt 9. 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.

Further, a quadrangular fixed piece projection 13 is provided at an eccentric position of the cylindrical portion 1 a of the main body 1. A rectangular fixed piece 14 is fitted into the fixed piece projection 13 and the side surface of the fixed piece 14 is used by contacting the outer surface of the base of the electric wire W to be bent. The fixing piece 14 has different distances from the central hole 14a to the four side surfaces. For example, the side surface corresponding to four types of wires with cross-sectional areas of 22 mm ² , 38 mm ² , 60 mm ² , and 100 mm ² is fixed in the direction of hitting the wire W. It can be replaced with the frame projection 13.

Further, a movable piece projection 15 is also provided on the upper surface of the movable ring 2, and the rectangular movable piece 16 is used by being replaced according to the thickness of the electric wire W in the same manner as described above. This movable comma 16 also has different distances from the central 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.

A rail 17 with a scale is provided on the side of the main body 1, and a movable base 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, and the base end surface 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 top and bottom 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 fixed. Insert it into the top projection 13 and the movable top projection 15, and adjust the position of the ate 20. Further, the position of the stopper ring 8 is adjusted 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. When the movable ring 2 is rotated by the handle 7 until it hits the stopper pin 10 of the stopper ring 8, the tip end of the electric wire W is forcibly pressed by the movable piece 16 and bent around the pin 12 as shown in the figure. At this time, since the base end surface of the electric wire W is merely applied to the ate 20, the surface of the electric wire W is not scratched and can be bent from an accurate position. 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.

[0014]

[Effect of device]

 As described above in detail, the wire bending machine of the present invention can bend the wire easily and with good dimensional accuracy regardless of the thickness of the wire, and also damages the surface of the wire as in the conventional method. There is no fear. Further, there is an advantage that the operator's fatigue can be prevented without requiring strong force unlike the conventional case. Therefore, the present invention has an extremely great 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 12 Pin 14 Fixed piece 16 Movable piece

Claims (1)

[Scope of utility model registration request] 1. A pin provided in contact with an inner surface of an electric wire is provided at a central position of an upper surface of a main body, and a fixed piece is provided at an eccentric position.
The electric wire bending machine is characterized in that a movable ring is provided on the upper surface of a movable ring that can rotate around the main body.