Abstract
Daido Steel Co., Ltd. installed an automatic continuous inspection and conditioning line for small round bar for the purpose of improving accuracy of quality assurance and efficiency at Chita Plant. The line consists of an automatic products conveyance system and automatic inspection devices.We developed and installed an automatic profile inspection system in the line. The system measures the diameter, the roundness and the bend of each product, and makes a judgement whether the measured values are fit with the customer's specification.This system consists of a main frame computer, a mini-computer, a micro-computer and a size measuring device as a hierarchy system. The mini-computer controls measuring conditions, such as position of the measuring device, turning speed of product and etc., for accuracy, and the micro-computer gathers measured values and judges the data.This system has been working successfully since 1987.
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