TOOLS FOR PRECISION WORKING, OF VALVE SEATS, FOR EXAMPLE

摘要

The present invention relates to a tool for precision machining, for example for the grinding of thermal-engine valve seats. The tool according to the invention comprises a housing (2), a sleeve (3) equipped with a spherical orientation plug (3a) mounted inside the housing, a one-piece machining shaft (6) mounted freely in terms of rotational and translation motion in the sleeve, and a means for adjusting the height of the shaft (6), comprising a means for fixing said shaft in terms of rotation to a bush (17) movable in terms of translational motion relative to the sleeve.