Appliance for forming a needle point used for measurement/testing purposes in biological and engineering oscillates point in grinding powder on oscillating plate

摘要

The needle is held in a holder (3). A hard rubber support plate (5) is mounted on a carrier (4), grinding powder (6), e.g. aluminium oxide, being deposited on it, in which the needle point (2) is immersed during the sharpening process. Circular and transverse movements can be imparted to the plate and carrier by actuators (7) controlled by a programmable control unit (8), providing very fine control of the movements