发明名称 |
CONTROL METHOD OF MACHINE TOOL AND MACHINE TOOL |
摘要 |
A machine tool includes a machine tool main body, a ram which is supported with respect to the machine tool main body in a movable manner, a main shaft which is supported by the ram in a drivable and rotatable manner, an attachment which can be attached to and detached from a tip end portion of the ram and includes a driving shaft rotated according to rotation of the main shaft and a tool provided on the driving shaft, and a NC device which performs a numerical control based on machining data, and performs machining of a processing target. The control method of a machine tool includes a step of decreasing at least one of a ram overhang amount or a feeding amount when stress applied to the attachment is larger than allowable stress of the attachment based on a machining condition including a diameter, a depth of cut, and a feeding amount of the tool, and information including the ram overhang amount, a shape of the attachment, and a material of the processing target. |
申请公布号 |
US2015030405(A1) |
申请公布日期 |
2015.01.29 |
申请号 |
US201314384620 |
申请日期 |
2013.03.21 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
Tsuruta Megumu;Komatsu Naotaka;Takeuchi Katsuyoshi;Shibutani Takashi;Furutate Satoshi |
分类号 |
B23Q15/007 |
主分类号 |
B23Q15/007 |
代理机构 |
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代理人 |
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主权项 |
1. A control method of a machine tool which includes: a machine tool main body;
a ram which is supported with respect to the machine tool main body in a movable manner; a main shaft which is supported by the ram in a drivable and rotatable manner; an attachment which can be attached to and detached from a tip end portion of the ram and includes a driving shaft rotated according to rotation of the main shaft and a tool provided on the driving shaft; and a NC device which performs a numerical control based on machining data, and performs machining of a processing target, comprising: a step of decreasing at least one of a ram overhang amount or a feeding amount when stress applied to the attachment is larger than allowable stress of the attachment based on a machining condition including a diameter, a depth of cut, and a feeding amount of the tool, and information including the ram overhang amount, a shape of the attachment, and a material of the processing target. |
地址 |
Tokyo JP |