| 摘要 |
PURPOSE:To carry out a various sorts of spiral-groove working only by varying a broach by setting the driving ratio between the first driving apparatus which drives a cut article or the broach in straight-line form and the second driving apparatus for revolution-driving the broach according to the program by a controller. CONSTITUTION:The driving ratio between the servometer 34c of the first driving apparatus 3 and the servomotor 71 of the second driving apparatus 7 is set by setting the program for a controller 8. Therefore, the speed for lowering a cut article 1 by the servomotor 34c and the speed for turning a broach 4 by the servomotor 71 can be set freely. Therefore, a various sorts of spiral- groove working can be carried-out only by varying the broach. |
