JPH044326Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to electric wires such as power supply wires used in robot welding machines and the like.

(Prior Art) Generally, power wires made of solid materials such as copper wires or copper plates are used. However, when such power wires are used in devices that instantaneously use high currents, such as robotic welding machines, they repeatedly bounce due to the shock they receive every time a high current is applied, causing them to break. Put it away.

Therefore, as a wire for a high current power supply for a robot welding machine, etc., for example, as shown in FIGS. 6 and 7, thin copper wire 1 is braided and terminals 2, 2 are crimped to both ends of the wire. things are used.

(Problem that the invention aims to solve) However, even with wires made of braided copper wires, it still cannot solve the problem that wires often break due to constant bouncing when high current is applied. As a result, there was an inconvenience that the operating rate of the robot welding machine etc. decreased.

(Means for Solving the Problems) In order to solve the above problems, the present invention aims to solve the above-mentioned problems by adding a high A non-solid reinforcing material with tensile strength is passed through the length of the wire.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

1 and 2 are a plan view and a sectional view of a power supply wire embodying this invention.

As shown in FIG. 2, this power wire 10 has a non-solid (not dense) shape with high tensile strength.
The thin copper wire 11 is braided around the reinforcing material 13 around the outer periphery of the reinforcing material 13.

Further, this power supply wire 10 has terminals 12, 12 crimped to both ends thereof, respectively. In addition,
As the reinforcing material 13 having high tensile strength used in this power supply wire 10, for example, synthetic fibers such as polyester fibers and polyamide fibers, carbon fibers, glass fibers, and the like can be used.

In addition, the thickness, number, and amount of the copper wires 11 to be braided and the method of braiding can be changed in accordance with the current value used, and the thickness and number of fibers of the reinforcing material 13 can be changed. You can also do that.

FIG. 3 shows another embodiment in which the electric wire according to the present invention is used as a cable, and the cable wire is made of a non-solid (not dense) reinforcing material 13 made of polyester or the like as described above. It is constructed by braiding thin copper wires 11 around its outer periphery.

In this way, in electric wires such as power supply wires, a reinforcing material with high tensile strength is passed through the braided copper wire, so that the impact caused by bouncing when the wire is energized is absorbed by the braid, which is a conductor. This is not applied to the wire that has been removed, but is transmitted to the reinforcing material with high tensile strength passed through the wire, which greatly reduces the chance of wire breakage.

(Effects of the invention) As explained above, according to this invention, a non-solid (not dense) wire with high tensile strength can be used in electric wires such as power supply wires for devices that move in three dimensions such as robot welding machines. ), the reinforcing material is passed through gently, allowing the wire to bend flexibly according to the three-dimensional movement of the device, and also significantly reducing wire breakage even when used for high current applications, greatly extending the life of the wire. become longer.

Furthermore, as a result, it is possible to significantly reduce the loss time required to stop the robot welding machine or the like and replace the wire with a new one every time a wire breaks, thereby significantly improving the operating rate of the robot welding machine or the like.

[Brief explanation of drawings]

1 and 2 are a plan view and a cross-sectional view of one embodiment of the present invention, and FIG. 3 is a diagram showing another embodiment,
4 and 5 are a plan view and a cross-sectional view of a conventional example. In addition, 10 is a power supply wire, 11 is a copper wire, 1
2 is a terminal, 13 and 14 are reinforcing materials, and 16 is an outer covering.

Claims (1)

[Scope of utility model registration request] Electric wires used for power supply wires of devices that move in three dimensions, such as robot welding machines, are characterized by having a non-solid reinforcing material with high tensile strength passed through the wire in the length direction of the wire. electric wire.