Thermal compensation system for a milling machine
US8845247B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 28, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | May 4, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309744
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A milling machine has a base, a work platform mounted movably on the base, and a ruler mounted on the work platform. The work platform is movable relative to a base axis. The thermal compensation system includes a sensor and a control unit. The sensor is configured to be mounted on the base for sensing a position of each of the work platform and the ruler relative to the base axis. The control unit is coupled to the sensor, and determines a work platform displacement and a ruler displacement according to the positions sensed by the sensor. The control unit further calculates a compensation value based on the work platform displacement and the ruler displacement. The control unit is configured to correct the position of the work platform relative to the base axis according to the compensation value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.