这(特开昭52—112875)是一项关于刀具破损或有无的检测,并在检测出刀具已经破损后使机床停止运转的装置的发明。 图(a)是这种装置的气压回路。检测器由气缸构成(如图(b)所示),在气缸中有一个能自由滑动的活塞,活塞的头部则装有一个检测棒。气缸的一端拧上一个带小孔的螺栓,在气缸侧面则设有检测口和压力口。 This (Japanese Unexamined Patent Publication No. 52-112875) is an invention of a device for detecting whether a tool is broken or not, and stopping a machine tool after it has been detected that the tool has been damaged. Figure (a) is the pneumatic circuit of this device. The detector consists of an air cylinder (Figure (b)). There is a free-slidable piston in the cylinder, and the head of the piston is equipped with a test rod. One end of the cylinder is screwed into a bolt with a small hole, and a test port and a pressure port are provided on the side of the cylinder.