| 摘要 |
PROBLEM TO BE SOLVED: To efficiently carry out the cleaning treatment of a suction groove 2 in a work retaining device which vacuum-sucks a work w placed on the work retaining surface 1a of a work retaining table 1 through the suction groove 2 formed on the work retaining surface 1a. SOLUTION: Outside air is flowed in from the first communication port 3 of the suction groove 2 and the suction groove 2 is purged and cleaned by suction from the second communication port 4 of the suction groove 2 in a state where the whole suction groove is closed by the work w of a closing member placed on the work retaining surface 1a. COPYRIGHT: (C)2009,JPO&INPIT |
