Precision machining method and device

精密加工方法および装置

Abstract

(57)【要約】 【課題】 自動工具交換を含む加工や主軸回転速度が異 なる加工を連続して行う場合、主軸一時停止による主軸 熱変位の変化や、加工回転速度の違いによる主軸発熱量 の差によって主軸に装着した工具の刃先位置が変動する が、短時間に刃先位置の安定化を図る。 【解決手段】 主軸7の前回転速度および次回転速度に 応じ、主軸冷却液供給手段17の起動タイミング、主軸7 の起動タイミング、次回転速度での加工開始タイミング を、記憶手段31に記憶されている主軸熱変位量、主軸回 転停止時間などより制御手段29を介して最適制御する。
PROBLEM TO BE SOLVED: To stabilize the blade edge position of a tool by calculating the cooling liquid supply start timing, the spindle start timing and the machining start timing according to the front and next spindle rotational speeds and based on each stored data and then performing the start of supply of the cooling liquid, the start of a spindle and the start of the machining. SOLUTION: The displaced variable of a spindle 7 is previously calculated and stored in a storage means 31 in its each state that is set when the thermal deformation of the spindle 7 is almost stabilized against its each rotational speed. Then the data are acquired and stored in the means 31 for the cooling liquid supply start timing of a cooling liquid supply means 17, the spindle start timing and the machining start timing which are decided with respect to the displaced variable of the spindle 7. A control means 29 calculates the cooling liquid supply start timing, the main spindle start timing and the machining start timing according to the front and next main spindle rotational speeds and based on those stored data. Thus, the supply of the cooling liquid, the spindle 7 and the machining are started in each calculated timing. COPYRIGHT: (C)1999,JPO

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    JP-2001259961-ASeptember 25, 2001Disco Abrasive Syst Ltd, 株式会社ディスコ加工装置
    JP-2014223705-ADecember 04, 2014株式会社ジェイテクト, Jtekt Corp, 株式会社 豊幸, Houkou:Kk, 株式会社 豊幸Rotary shaft device