CNC旋盤チャックの回転に起因する閉鎖空間内の空気流観察(機械要素,潤滑,工作,生産管理など)

概要

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In order to solve some problems relating to airflow caused by rotating chuck of a CNC lathe or turning center, the airflow in a closed space assumed a machining space is observed by means of the tuft and tracer methods. Flow visualizations are carried out when chuck rotating speeds are 2 000, 3 000, and 4 000min^<-1>, and also the rotating directions of chuck are clockwise and counterclockwise. The investigation shows some characteristic airflow patterns in the closed space; (1) The radial-like flow exists in the region where the airflow blown from chuck or passed through concave area formed by two panels collides vertically with the panel. (2) The vortex-like flow is occurred by the interference of the flow near the tailstock panel side. (3) The region of weak airflow due to the separation exists on the upper, right, slant, and bottom panels. Furthermore, it is clearly that these characteristic airflow are closely related to the accumulation of chip and the leakage of chip or cutting fluid in the CNC lathe.
一般社団法人日本機械学会の論文
2007-12-25