Grinding machine for scissors blade - with rotary motion about longitudinal axis superimposed on longitudinal motion of blade engaging dished grinding disc

摘要

A scissors blade is ground by means of a dished grinding disc which engages on a mounting. After positioning in the dished disc, the blade is moved in a longitudinal traction plane which is set at an angle gamma greater than 90 deg. to the dish grinding disc axis. A rotary motion about its longitudinal axis is superimposed on the longitudinal traction motion and the blade carries out a helical motion. On termination of the longitudinal motion, the scissors blade is swivelled away on an arc. A support carries the workpiece via a support plate with a grinding base and a tensioning device. The support can be moved along a slide table.