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    • 4. 发明专利
    • Numerical control equipment and production systems
    • JP5268974B2
    • 2013-08-21
    • JP2010053569
    • 2010-03-10
    • 三菱電機株式会社
    • 慎哉 西野直樹 中村智典 佐藤
    • G05B19/4103B23Q15/00
    • PROBLEM TO BE SOLVED: To provide, in a numerical control device configured to perform processing by compressing a plurality of instruction paths having short path lengths into one, the numerical control device which can perform the processing without deteriorating the processing accuracy at high speed by preventing change in the feed rate of a tool due to the compression. SOLUTION: The device includes a determination allowable feed rate calculation part 3, a compression propriety determination part 4, a compression processing part 5, and an interpolation allowable feed rate calculation part 7. The determination allowable feed rate calculation part 3 calculates, based on an instruction path 12 or/and an after-compression instruction path, a determination pre-compression allowable feed rate or/and a determination after-compression allowable feed rate. The compression propriety determination part 4 determines the propriety of compression based on the determination pre-compression allowable feed rate or/and the determination after-compression allowable feed rate. The compression processing part 5 forms an after-compression instruction path 16 by compressing a plurality of instruction paths into one path based on a compression propriety determination result 15 in the compression propriety determination part 4, and the interpolation allowable feed rate calculation part 7 calculates an interpolation allowable feed state based on the after-compression instruction path 16. COPYRIGHT: (C)2011,JPO&INPIT