Machine vision is used for cable appearance inspection

Power cable is mainly used in urban underground power grid, power station leading lines, industrial and mining enterprises internal power supply and across the river, sea of underwater transmission lines and other occasions, control power cable is a kind of power cable, mainly used to transmit control, measurement signals. It is very important to control the appearance quality of power cables, and good products often pay attention to the appearance quality. What are the main aspects of the appearance inspection of control power cables?

1, round aluminum rod: it is required to check the degree of roundness, whether there are wrinkles, wrong circles, cracks, inclusions, kinks and other defects and serious mechanical damage scars, pits, peeling, flash, corrosion spots and so on.

2, round copper wire: check whether the surface is smooth, there is no triangle mouth, burrs, cracks, folding and inclusions and serious spot scars, pits, mechanical damage corrosion spots and so on. It is worth proposing that there is also the degree of oxidation of copper wire, the copper wire of wire and cable is generally golden yellow, which is a normal color, light red for slight oxidation, the surface is deep red, blue for serious oxidation, where serious oxidation should be judged as waste disposal. Aluminum wire in the manufacturing process there are more ways, do overhead power lines should be strictly controlled.

3, the surface of the aluminum line: the wire should be twisted tightly and neatly, there can be no loose, single line kink, single line jump out or convex and single line fracture phenomenon. In addition, the joint welding of the single wire should be rounded and the welding has been required to do anti-corrosion treatment, the increased part of the joint is generally not more than twice the diameter tolerance, the distance between the two welding joints of the single wire should also meet the standard, the same single wire two welding joints should not be less than 15 meters, the same layer of non-the same single wire two welding spacing is not less than 5 meters, the outer layer is not less than 15 meters. When the copper core is a single copper wire, welding is not allowed.

4, the appearance of the cable structure size: the appearance of the cable, structure size inspection is generally interspersed or carried out at the same time, the quality of the product quality, on the one hand, depending on its performance is good, but the quality of its appearance, structure size also accounts for a certain proportion, the appearance of the product, structure size has an impact on the performance of the cable.

The appearance quality of cable products is very important, because the appearance can often give customers the first impression, so for the appearance quality of products, production workers and inspectors can not be ignored, should be strictly controlled to ensure the appearance quality of cable products.