2014 Fiscal Year Final Research Report
Ultra-precision machine system feedback-controlled with measurement device for six-degree-of-freedom relative motions between tool and workpiece
Project/Area Number |
23360110
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Intelligent mechanics/Mechanical systems
|
Research Institution | Shizuoka University |
Principal Investigator |
OIWA Takaaki 静岡大学, 工学研究科, 教授 (00223727)
|
Co-Investigator(Kenkyū-buntansha) |
ASAMA Junichi 静岡大学, 工学研究科, 准教授 (70447522)
|
Project Period (FY) |
2011-04-01 – 2015-03-31
|
Keywords | 精密機械システム / 6自由度運動誤差補正 / パラレルメカニズム / 工作機械 / 超精密加工機 / 三次元座標測定機 |
Outline of Final Research Achievements |
This research aims to realize a feedback-controlled precision machine system based on a hexapod-type measurement device for six-degree-of-freedom relative motions between the tool and work piece. The hexpod consisting of six extensible struts accurately measures the motions for the feedback control of the machine regardless with temperature fluctuation and external forces because each strut has a compensation device for elastic and thermal deformations of the joints and links. First, an improved strut equipped with a laser interferometer length measurement system has been developed instead of the strut with a linear encoder. Second, a test apparatus has been improved to shorten a dead path of the interferometer system to reduce the influence of temperature and air pressure fluctuation. Finally, the research deals with kinematic parameter identification based on distance errors among spheres on a three-dimensional ball plate calibrated by a coordinate measurement machine.
|
Free Research Field |
精密メカトロニクス,精密機構,精密計測,精密位置決め装置,パラレルメカニズム
|