Machine tool magnetic chuck - has flexible bag filled with magnetic powder to bear against uneven work

摘要

The magnetic chuck is for a machine tool etc., attracting a workpiece magnetically into the desired position. The atttracting portion of the chuck incorporates one or more flexible bags(36A, 36B), filled with magnetic powder(38) to distort on coming into contact with the workpiece(40). The chuck can have a U-shaped magnetisable body with a coil wound round it, and a bag on each pole.