Mathematical modeling for screw rotor form grinding on vertical multi-axis computerized numerical control form grinder

Yu Ren Wu, Chung Wen Fan

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The pair of screw rotors is a key element of a twin-screw compressor, and rotor tooth modification has gradually received attention because it can reduce operating compressor noise. Current rotor machining references are mainly related to forming tool design or abrasion of the "horizontal" grinder, but little attention has been paid to form grinding using a "vertical" grinder and simulating the machining flexibility of each grinder axis. Therefore, this paper established a general coordinate system for the screw rotor form grinding and connected it to a vertical five-axis computerized numerical control form grinder to simulate rotor grinding and tooth modification. Further, the influence of a form grinding wheel contour designed by different declination angles of a rotor tooth profile on a grinding rotor tooth and the influence of the motion parameter of each axis on the machining precision of the rotor and the tooth shape are proposed in this paper.

Original languageEnglish
Article number051020
JournalJournal of Manufacturing Science and Engineering, Transactions of the ASME
Volume135
Issue number5
DOIs
StatePublished - 2013

Keywords

  • Form grinding
  • Screw rotor
  • Tooth modification
  • Vertical grinder

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