Machining apparatus and cutting method
US12427578B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 1, 2021 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | May 13, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41256
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotation mechanism rotates a spindle to which a cutting tool or a workpiece is attached. A rotation controller controls the rotation of the spindle by the rotation mechanism. A feed mechanism moves the cutting tool relative to the workpiece. The rotation controller alternately exercises acceleration control under which the rotation of the spindle is accelerated to make a speed fluctuation ratio between the current cutting speed and a cutting speed one rotation before at the same rotation position equal to or greater than the first value that is greater than 1 and deceleration control under which the rotation of the spindle is decelerated to make the speed fluctuation ratio equal to or less than the second value that is less than 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.