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    • 7. 发明授权
    • Rotary cutter
    • 旋转刀
    • US08876442B2
    • 2014-11-04
    • US12889959
    • 2010-09-24
    • Manabu SaitoTatsuo NakahataHideharu Takahashi
    • Manabu SaitoTatsuo NakahataHideharu Takahashi
    • B23B51/06B23B31/20B23Q11/10
    • B23B31/20B23B2231/24B23B2250/12B23Q11/1023B23Q11/103Y10T279/17111Y10T408/455Y10T409/304032
    • The object of the invention is to stably spray cutting fluid in a good mist form, when cutting fluid and air are supplied from the surrounding area and cutting fluid is sprayed in a mist form from the tip end section of a rotary cutting tool. The rotary cutter of the present invention sequentially feeds a mixture of cutting fluid and air through a supply pipe 4, first supply path b in a cover 3, second supply paths c, d in a chuck 2, a hollow center cavity (front throttle chamber d, throttle 24a, and rear throttle chamber e) in the chuck, and a third supply path g in a rotary cutting tool 1. The first supply path and second supply path are intermittently connected when the respective openings thereof face each other as the cover and chuck turn relative to each other; the second supply path sprays fluid toward the throttle; the front throttle chamber is formed such the diameter thereof expands from the second supply path; the throttle is formed such that the diameter thereof is less than the smallest diameter of the second supply path; the rear throttle chamber is formed by the rear end surface of the rotary cutting tool and the inner conical surface on the down-flow side of the throttle when that rear end surface and inner conical surface on the down-flow side come in close contact with each other; and the front throttle chamber is formed such that the capacity thereof is greater than that of the rear throttle chamber.
    • 本发明的目的是在切割流体和从周围区域供应空气并且从旋转切削工具的末端部分以雾状喷射切削流体时,以良好的雾状来稳定地喷射切削液。 本发明的旋转切割机通过供给管4,第一供给路径b,盖3,卡盘2的第二供给路径c,d,中空中心腔(前节流室 d,节流阀24a和后节流室e)以及旋转切削工具1中的第三供给路径g。当其各个开口彼此面对时,第一供给路径和第二供给路径间歇地连接,作为盖 并相对于卡盘转动; 第二供应路径朝向节气门喷射流体; 前节气门腔形成为其直径从第二供应路径膨胀; 节气门形成为使得其直径小于第二供给路径的最小直径; 后节流室由旋转切削工具的后端面和节流阀的下流侧的内圆锥面形成,该下端面与下流侧的内圆锥面紧密接触 彼此; 并且前节气门腔形成为使得其能力大于后节气门腔的容量。