Device and method of controlling machine tool, to control synchronized operation of spindle axis and feed axis
US10065255B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2016 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Jul 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/50232
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A controller for controlling a synchronized operation of spindle and feed axes. A spindle-axis control section includes an initial-motion control section for making a spindle axis perform an accelerated rotation at maximum capacity from a process start position; a maximum-acceleration detecting section for detecting a maximum acceleration of the spindle axis; a residual rotation-amount detecting section for detecting a residual rotation amount of the spindle axis; a current-speed detecting section for detecting a current speed of the spindle axis; a positioning-motion control section for making the spindle axis perform a decelerated rotation so as to reach the target thread depth after the accelerated rotation; and an overshoot detecting section for detecting an overshoot of the spindle axis during the decelerated rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.