加工孔时被加工零件的测量,按其目的、用途所和要求的精度常常使用游标卡尺、千分尺、千分表、塞规等等。这样一些量具在很多场合都是由操作者用手直接操作。在多品种小批生产时也只好用这类量具测量,然而在自动化大量生产中就不能适应,这时需要考虑采用自动测量。本文主要介绍孔径的自动测量方法和自动测量装置。在自动化机床上,通常都设有检测钻孔深度、丝锥折断等检测装置。但是在孔的精密 Hole processing hole when the measurement of parts, according to their purpose, purpose and required accuracy often use vernier caliper, micrometer, dial indicator, plug gauge and so on. Such gauges are often manually operated by the operator on many occasions. In many small batch production also had to use this type of measuring tool, however, in the automated mass production can not be adapted, then need to consider the use of automatic measurement. This article describes the automatic measurement of aperture and automatic measurement device. In automated machine tools, usually with detection of drilling depth, tap broken detection device. But the precision of the hole