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介绍了一种小尺寸棒料通过车床主轴通孔送料的自动化装置，该装置由料仓、落料及预送机构、送料气缸及下料卡爪等组成。各传动环节布置了一系列安全及到位检测开关。控制系统由一片８７Ｃ５１单片机完成，并可实现与数控车床（下称ＮＣ车床）的通讯。该装置结构紧凑，控制简单，适合对现有普通ＮＣ车床的改造，实现供料和加工自动化。
This paper introduces a kind of automatic device for feeding small size bar through the hole of lathe spindle. The device consists of silo, blanking and pre - delivery mechanism, feeding cylinder and feeding claw. The transmission links arranged a series of safety and in-place detection switch. The control system is completed by a 87C51 single-chip microcomputer, and can realize the communication with CNC lathe (hereinafter NC lathe). The device has the advantages of compact structure and simple control, and is suitable for the transformation of the existing common NC lathe to realize the automation of feeding and processing.