Title:
TOOL TRAJECTORY GENERATION DEVICE, TOOL TRAJECTORY COMPUTATION METHOD, AND TOOL TRAJECTORY GENERATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2011/122621
Kind Code:
A1
Abstract:
By taking into account a chatter-vibration increase/decrease influence value when determining machining conditions, where said value influences the increase/decrease of chatter vibration, the disclosed method can determine a highly-efficient tool trajectory in which chatter vibration is minimized. In step S100 of the disclosed machining-conditions determination method, an operator inputs the following via an input unit (28): information to the effect that the vibration characteristics of a machine tool device (8), including a tool and a work piece, are unknown; information to the effect that the direction of chatter vibration that occurs in the machine tool device (8) is unknown; information to the effect that the magnitude and direction of the relative cutting resistance of the work piece with respect to the tool are unknown; and a cutting width tolerance or regeneration width tolerance. Next, in step S110, a maximum allowable feed amount (one of the machining conditions) is selected. Then, in step S120, a combination of cut depth (d), pick feed (p), and tool orientation that maximizes machining efficiency (or delivers a required efficiency while maximizing machining system stability) is computed. After that, the machining-conditions information is sent to a tool trajectory computation unit (32), and the tool trajectory generation device outputs information including a tool trajectory.
Inventors:
SHAMOTO Eiji (Furo-cho Chikusa-k, Nagoya-shi Aichi 01, 〒4648601, JP)
Application Number:
JP2011/057801
Publication Date:
October 06, 2011
Filing Date:
March 29, 2011
Export Citation:
Assignee:
OKUMA CORPORATION (5-25-1, Shimo-oguchi Oguchi-cho, Niwa-gu, Aichi 93, 〒4800193, JP)
オークマ株式会社 (〒93 愛知県丹羽郡大口町下小口５丁目２５番地の１ Aichi, 〒4800193, JP)
National University Corporation Nagoya University (1 Furo-cho, Chikusa-ku Nagoya-shi Aichi, 01, 〒4648601, JP)
オークマ株式会社 (〒93 愛知県丹羽郡大口町下小口５丁目２５番地の１ Aichi, 〒4800193, JP)
National University Corporation Nagoya University (1 Furo-cho, Chikusa-ku Nagoya-shi Aichi, 01, 〒4648601, JP)
International Classes:
B23Q15/00; B23Q15/12; G05B19/4093
Attorney, Agent or Firm:
ISHIDA Yoshiki (10-30, Higashisakura 1-chome Higashi-k, Nagoya-shi Aichi 05, 〒4610005, JP)
Claims:
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