Abstract
The bench drill is the metal cutting tools in mechanical machining, this paper is
transformation and design of the desktop machine, mainly through the introduction of
hydraulic system and PLC control system will be transformed into the automatic
drilling machine.
The design process is first carried out in accordance with the general machine
design steps, and then the feed system and control system were designed in details.
The design focuses on the design of feed system design and PLC control system. The
design of hydraulic system is based on the known conditions, to determine the design
of hydraulic project, hydraulic pump, hydraulic cylinder structure, control circuit. The
design of PLC control system is mainly the design of electrical control system of
hardware and software, including the choice of PLC models, the I\/O port assignment,
I\/O hardware wiring diagram, ladder diagram of PLC program design. Finally, the
programmable controller of the hydraulic circuit is controlled by PLC
Key words: Automatic drilling machine；Hydraulic feed system ； PLC
