Automation of Rack Milling Machine

Abstract

Our project is about automation of old milling machine by replacing its control circuitry with PLC logic. There is one old Germen rack milling machine in the power tools manufacturing industry named Eibenstock Positron Ltd. Tardal for making the racks of metal bar. This machine was working on old hard wired control logic. This control logic had difficulties in troubleshooting problems, modification of system could not be done easily and control box was large, also complicated. In that machine, we replaced hard wire control logic by PLC based control logic. The mechanical components remained same but we used new electrical components to make compatible with PLC. The ‘Eibenstock Positron’ is power tools manufacturing industry; there, different types of machines are assembled. These machines include drilling, screwing, mixing, cutting etc. In magnetic drill machines, for vertical movement of drill head, instead of smooth slider, racked slider is used. Rack slider helps not only for momentary action but also stays in steady position while operating against vibrations created by the drilling action.

Keywords: PLC, relay, reed switch, 3-phase motor, SMPS, proximity sensor, contactors

Cite this Article

Suraj Deshmane, Mayuresh Kadam, Patil PR et al. Automation of Rack Milling Machine. Trends in Electrical Engineering. 2017; 7(1): 48–50p.