Method for positioning a workpiece carrying member in a machining apparatus and a workpiece carrying member adapted to be positioned in a machining apparatus

摘要

The present invention relates to a method of positioning a workpiece carrying member with respect to a machining apparatus and inserting the workpiece carrying member into the machining apparatus and fixing at least approximately at a position corresponding to a predetermined position. The effective position of the workpiece carrying member is therefore provided by scanning two reference marks provided on the workpiece carrying member. The determination of the exact position of the workpiece contained in the workpiece carrying member is performed in a separate measuring and alignment station. The determined position data is thus transmitted to the machining device. The effective position of the workpiece accommodated in the workpiece carrying member can be calculated based on the position of the reference mark.;The present invention also provides a workpiece carrying member comprising at least two reference marks positioned at a certain receiving distance from each other. Thereby, the exact actual position of the workpiece carrying member can be easily determined in the X and Y directions as well as in the angular direction around the Z direction. Thereby, there is no need to move the workpiece carrying member to the exact predetermined position by the machining device.