| 摘要 |
PROBLEM TO BE SOLVED: To provide a device recovering CO<SB>2</SB>and machined chips at a high recovery rate without leaving machined chips after machining, in a CO<SB>2</SB>blasting device. SOLUTION: A nozzle part and a recovery part of CO<SB>2</SB>and machined chips are formed in chamber structure, and a bottom face of a blade section surrounding in frame shape an opening part, facing a machined surface, of the chamber structure, is sealed while maintaining a micro clearance with clearance constant control by the feedback of a non-contact displacement sensor. The flow direction of a CO<SB>2</SB>blast collision jet is changed upward by the blade section. The internal pressure of a hole formed in the blade part to lead into the chamber from the machined surface is made negative by the dynamic pressure of the collision jet flowing on the upper face of the blade section. Further, the machined chips left on the machined surface are positively blown off by a blow nozzle and sucked. COPYRIGHT: (C)2006,JPO&NCIPI
|
