Water-supply cable for point welding machine

Abstract

The invention provides a water-supply cable for a point welding machine. The technical scheme adopted by the water-supply cable is as follows: cabling conductors in pairs and isolating layers form a conductive cable core; a water channel sheath is arranged outside the cable wire; a heat-resistant insulating layer and a nylon silk screen wrap the exterior of the conductors; and a cooling water channel is arranged between the water channel sheath and the cable core. The water-supply cable can be used for overcoming the defects of a matched cable for a point welding machine in production of vehicle engineering and certain engineering products that the possibility of friction between two poles is high, the conductors emit heat, fracture of wire occurs, the water channel is blocked, and the conductors are dispersed because the compactness of conductor cabling twisting does not reach the requirement; and the water-supply cable is suitable for being used as a matched cable of a point welding machine for various special engineering test platforms and heavy-current equipment, such as the matched cable of point welding equipment used in various defense engineering equipment testing platforms, various automobiles, motor bicycles, tractors, household appliances, environment protection, machine manufacturing and special engineering, and is especially suitable for being used as a matched cable of DN3-series suspended movable point welding machines, DN2-series fixed point welding machines and defense engineering equipment.

Description

Technical field [0001] The invention relates to a water-passing cable for spot welding machines, in particular to a water-passing cable for spot welding machines for special engineering. Background technique [0002] The existing ordinary cables are only suitable for general current and voltage equipment, and their structure and appearance are characterized by "silly, large, black, thick, and hard". For the welding machine used in vehicle engineering and some special projects, such as the welding of thin steel plates in the automobile manufacturing industry, it not only requires cables with large capacity and large current, but also requires small size, light weight, long life, safe and reliable use. It also requires flexible, lightweight, and flexible removable cables. This type of cable will inevitably cause the cable to heat up due to the large current that it bears. The main measure to prevent heat at present is to cool the conductor through water. However, the water-cooled ...

AI Technical Summary

Problems solved by technology

Due to the large current that this type of cable bears, it will inevitably cause the cable to heat up. At present, the main measure to prevent heat generation is the method of cooling the conductor through water. However, due to the unreasonable structure of the water-cooled cable, it is vulnerable to high current, water corrosion and The combined effects of various elements such as mechanical movement lead to the debris falling off when the conductor monofilament of the water-through cable is damaged or broken to block the waterway, or cause the cable to be damaged due to dry burning without water, or the water in the cable to boil. , to generate steam, causing the rubber hose to burst, causing personal injury accidents; in order to solve this kind of problem, the developers first set up a blocking net directly on the bare wire to control the friction between the cable strands and reduce the broken wire; Secondly, a transparent rubber tube is used to facilitate the judgment of broken wires in the rubber tube; however, these have not completely solved the problems that still exist in the use of cables: friction between the two poles, heat generation, and loose strands due to unsatisfactory twisting tightness , The long-term work of the spot welding machine causes the cable conductor to heat up, break the wire, and even block the water channel.

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