Tool path generation device, tool path calculation method, and tool path generation program
AssigneesOkuma Corporation, National University Corporation Nagoya University
InventorEiji Shamoto
Life of this patent
Estimating the term…
Abstract
A tool path generation device that calculates a tool path to be used by a machine tool device, and that provides a high machining efficiency with suppressed occurrence of chatter vibration by calculating machining conditions in consideration of a chatter vibration increase and decrease affecting value that affects increase and decrease in chatter vibration.
Claims19
A tool path generation device that calculates a tool path to be used by a machine tool device that machines a workpiece using at least one tool, said tool path generation device comprising:
- an affecting value calculation section that calculates a chatter vibration increase and decrease affecting value that affects increase and decrease in chatter vibration caused in a structure formed by the tool, the workpiece, and the machine tool device;
- a machining condition decision section that decides machining conditions based on the chatter vibration increase and decrease affecting value calculated by the affecting value calculation section, the machining conditions comprising at least one of feed direction, pick feed and tool attitude;
- and
- a tool path calculation section that calculates the tool path based on the machining conditions decided by the machining condition decision section, wherein:
- if a direction of the chatter vibration and the vibration characteristics of the structure are not known, the chatter vibration increase and decrease affecting value is based on a cutting width or a regenerative width,
- if a direction of the chatter vibration or vibration characteristics of the structure is known, the chatter vibration increase and decrease affecting value is based on the chatter vibration increase width, and
- wherein the machine tool uses the at least one tool to machine the workpiece with the calculated tool path.
A tool path generation method for calculating a tool path to be used by a machine tool device that machines a workpiece using at least one tool, the method comprising:
- calculating a chatter vibration increase and decrease affecting value that affects increase and decrease in chatter vibration caused in a structure formed by the tool, the workpiece, and the machine tool device;
- deciding machining conditions based on the calculated chatter vibration increase and decrease affecting value, the machining conditions comprising at least one of feed direction, pick feed and tool attitude;
- and
- calculating the tool path based on the decided machining conditions, wherein:
- if a direction of the chatter vibration and the vibration characteristics of the structure are not known, the chatter vibration increase and decrease affecting value is based on a cutting width or a regenerative width,
- if a direction of the chatter vibration or vibration characteristics of the structure is known, the chatter vibration increase and decrease affecting value is based on the chatter vibration increase width, and
- wherein the machine tool uses the at least one tool to machine the workpiece with the calculated tool path.
A non-transitory computer readable medium containing a tool path generation program for calculating a tool path to be used by a machine tool device that machines a workpiece using at least one tool, the program comprising computer instructions which, when executed by a computer, perform a method that comprises:
- calculating a chatter vibration increase and decrease affecting value that affects increase and decrease in chatter vibration caused in a structure formed by the tool, the workpiece, and the machine tool device;
- deciding machining conditions based on the calculated chatter vibration increase and decrease affecting value, the machining conditions comprising at least one of feed direction, pick feed and tool attitude;
- and
- calculating the tool path based on the decided machining conditions, wherein:
- if a direction of the chatter vibration and the vibration characteristics of the structure are not known, the chatter vibration increase and decrease affecting value is based on a cutting width or a regenerative width,
- if a direction of the chatter vibration or vibration characteristics of the structure is known, the chatter vibration increase and decrease affecting value is based on the chatter vibration increase width, and
- wherein the machine tool uses the at least one tool to machine the workpiece with the calculated tool path.
Dependencies are inferred from the claim text.