Planer workpiece i.e. micro component, bending method for manufacturing set of stators of micro motor, involves pressing planer workpiece slightly at mandrel by direction belt that is moved with mandrel over predetermined wrap angle

摘要

The method involves bending a planer workpiece (15) by a rotary mandrel (16). The planer workpiece is pressed slightly at the rotary mandrel by a direction belt (10) that is moved with the rotary mandrel over predetermined wrap angle. The direction belt is guided around the rotary mandrel over predetermined wrap angle of 90 to 310 degree. The planer workpiece is arranged on the direction belt during idle condition of the direction belt, where a storage area is formed in front of the rotary mandrel in a running direction of the direction belt. An independent claim is also included for a device for bending a planar workpiece to manufacture of stators of an electric machine with a stator diameter of 4 mm or less than 4 mm, comprising a rotary mandrel.