Title:
NUMERICAL CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2015/162739
Kind Code:
A1
Abstract:
A numerical control apparatus (1) is provided with: a phase difference calculation unit (481) which, when a path of movement for machining with vibration is to be formed, calculates, from a vibration-amplitude-to-feed ratio, a phase difference which corresponds to the difference between a vibration-induced forward position and a vibration-induced backward position that is obtained by subtracting the vibration amplitude from the vibration-induced forward position, wherein the vibration-amplitude-to-feed ratio is the ratio of the vibration amplitude to the rate of feed of the tool relative to the object to be machined, and wherein the vibration-induced forward position varies with time and follows a path of movement determined on the basis of a command block; a movement path generation unit (482) which, on the basis of the phase difference, obtains, for each drive axis, a path of movement formed by the vibration-induced forward position and a path of movement formed by the vibration-induced backward position; a vibration waveform generation unit (483) which, on the basis of vibration conditions, generates, for each drive axis, a reference vibration waveform to be superimposed on each path of movement; a vibration distance generation unit (484) which calculates, for each drive axis, the vibration distance along each path of movement using the reference vibration waveform; and a travel distance combination unit (485) which generates, for each drive axis, a combined travel distance by combining the vibration distance with each path of movement.
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Inventors:
WATANABE MITSUO (JP)
SAGASAKI MASAKAZU (JP)
HIRATA YUKI (JP)
MATSUMOTO HITOSHI (JP)
SAGASAKI MASAKAZU (JP)
HIRATA YUKI (JP)
MATSUMOTO HITOSHI (JP)
Application Number:
PCT/JP2014/061488
Publication Date:
October 29, 2015
Filing Date:
April 23, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
CITIZEN HOLDINGS CO LTD (JP)
CITIZEN MACHINERY CO LTD (JP)
CITIZEN HOLDINGS CO LTD (JP)
CITIZEN MACHINERY CO LTD (JP)
International Classes:
G05B19/4093; B23Q15/013
Domestic Patent References:
| WO2003086688A1 | 2003-10-23 |
Foreign References:
| JP2009190119A | 2009-08-27 | |||
| JPS62140702A | 1987-06-24 | |||
| JP5033929B1 | 2012-09-26 | |||
| JP5139591B1 | 2013-02-06 | |||
| JP5139592B1 | 2013-02-06 |
Other References:
See also references of EP 2957972A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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