"普通车床刀架PLC控制设计与应用全解析"

The future development of ordinary lathes will trend towards the mid-to-high end, with mid-range lathes utilizing standard tool holders and power tool holders being used in higher-end lathes. In addition to this, lathe tool holders also include hydraulic tool holders, servo tool holders, and vertical tool holders. It is predicted that with the rapid economic and technological development in recent years, the demand for lathe tool holders in the industry has sharply increased. Currently, the development trend of lathe tool holders is shifting towards servo-driven, quick tool change, and electro-hydraulic combination drives in line with the rapid development of lathes. This paper mainly focuses on the PLC control of a turret-style four-station lathe tool holder design, as well as the design of the electrical circuit part of the lathe tool holder. The work principle and structure of the tool holder are analyzed, and the research involved in the PLC control of ordinary lathe tool holders, electrical control principles, and mechanical structures have been studied, as well as the principle and application of Hall elements. The tool change process of the four-station tool holder is divided into three parts: raising the tool disc, rotating the tool disc, and locking the tool holder. The rotating action of the tool disc is composed of the following parts: the control center sends out the tool change command → the three-phase asynchronous motor receives the command and starts → the turbine worm begins to work → the main spindle of the lathe tool holder is driven to rotate → the tool disc is positioned. The tool disc rotation is driven by a three-phase asynchronous motor. Keywords: Four-station tool holder; turret-style tool holder; PLC control circuit