Machine tool has spindle head with lubricant feed passage and pump and pressurized air feed to mixer in spindle shaft

摘要

The machine tool lubricant feed has a spindle head (10) with a fluid lubricant feed passage (30) and a pressurized air feed passage (31). The lubricant and air are mixed in a mixer (22) inside the spindle shaft (14). The fluid feed has a volumetric pump (35) with a controllable feed rate. The feed rate is selected to match a tool head supplied from the tool magazine.