Mathematical Model of CNC Rotary Table Driven by Worm Gear

• Taniyama Yuuki

  Tokyo University Agriculture and Technology

• Sato Ryuta

  Tokyo University Agriculture and Technology

• Tsutsumi Masaomi

  Tokyo University Agriculture and Technology

Bibliographic Information

Other Title

• ウォームギヤ駆動CNC回転テーブルの数学モデル

Abstract

In this study, a mathematical model for the rotary table driven by worm gear generally applied for 5-axis machining centers is proposed. The mechanism is modeled as a vibration model which has four degrees of freedom. The model consists of the inertia AC servo motor, the inertia of the worm, the mass of the worm, and the inertia of the worm wheel and the table. In order to evaluate the effectiveness of the model, the frequency response, the step response, the synchronous accuracy of the translational and rotary axes, the pitch error of uniform velocity motion, and the influence of the signal delay of rotary encoder are measured and simulated. The influences of the unbalanced mass have also been investigated.

Journal

• Proceedings of JSPE Semestrial Meeting

  Proceedings of JSPE Semestrial Meeting 2007A (0), 167-168, 2007

  The Japan Society for Precision Engineering

Keywords

• rotary table
• worm gear
• mathematical model
• 5-axis machining center

Details

• CRID: 1390001205651265920
• NII Article ID: 130005027769
• DOI: 10.11522/pscjspe.2007a.0.167.0
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed