本文将介绍一种由机械手技术，可编程控制（ＰＬＣ）技术和气动技术组成的铅笔刀组装线控制系统。其中，机械手指、电动改锥、螺钉盘、机械手与ＰＬＣ控制器间的通讯及双方软件协调方面的设计都具有一定的特点。对设计方案及其工作原理都做了详尽的阐述，关键之处配以框图说明。 This article introduces a pencil sharpener assembly line control system consisting of robotics, programmable logic (PLC) technology, and pneumatic technology. Among them, the mechanical fingers, electric screwdriver, screwdriver, manipulator and PLC controller communication between the two sides and the coordination of software design has certain characteristics. The design scheme and its working principle are exhaustively elaborated, the key points with the block diagram.