| 摘要 |
<p>The reference surface (10) is moved past the machine tool (1) before and during contact with the tool. The position of the machine tool is determined in relation to a reference surface on a workpiece (8) or a body (9) joined to the workpiece. The tool and/or body can be moved so that they move towards or away from each other, and the rotary speed for the tool motor is set low enough for its speed to be measurably reduced when the reference surface contacts the tool. An Independent claim is also included for the apparatus used to carry out this method, comprising a spindle for the workpiece, at least one spindle for at least one rotary tool with a work surface on its face, and motors for the spindles and rotating the tool, where at least one reference surface is provided on the workpiece (holder) or a body joined to the workpiece, which comes into contact with the work surfasce of the tool, at which point a signal is generated for determining the tool starting position. A drive mechanism is provided for moving the reference surface along the work surface during forwards movement of the tool, defining an asymmetric contact surface with vectors in the forwards and radial directions extending over only part of its circumference.</p> |
