STM Journals Peer-reviewed research from Consortium e-Learning Network

Trends in Electrical Engineering

Automation of Rack Milling Machine

  1. Suraj Deshmane
  2. Mayuresh Kadam
  3. Prashant Sarapure
  4. Tejash Arage
  5. Safdar Mujawar
  6. P. R. Patil

Abstract

Our project is about automation of old milling machine by replacing its control circuitry withPLC logic. There is one old Germen rack milling machine in the power tools manufacturingindustry named Eibenstock Positron Ltd. Tardal for making the racks of metal bar. Thismachine was working on old hard wired control logic. This control logic had difficulties introubleshooting problems, modification of system could not be done easily and control boxwas large, also complicated. In that machine, we replaced hard wire control logic by PLCbased control logic. The mechanical components remained same but we used new electricalcomponents to make compatible with PLC. The ‘Eibenstock Positron’ is power toolsmanufacturing industry; there, different types of machines are assembled. These machinesinclude drilling, screwing, mixing, cutting etc. In magnetic drill machines, for verticalmovement of drill head, instead of smooth slider, racked slider is used. Rack slider helps notonly for momentary action but also stays in steady position while operating against vibrationscreated by the drilling action.Keywords: PLC, relay, reed switch, 3-phase motor, SMPS, proximity sensor, contactors
Support