| Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2011: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
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| 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.
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