The invention discloses a high-precision tool setting device for
numerical control machining, which belongs to the technical field of
numerical control machining and comprises a
control system, a worktable, a tool arranged on the worktable, a tool setting gauge fixedly mounted on the worktable and a driving mechanism arranged on the worktable. The blow-off
drying mechanism comprises fixing bases symmetrically and fixedly installed on the two sides of the tool setting gauge, a blowing
assembly arranged on the two fixing bases, a first sensor and a second sensor, wherein the first sensor and the second sensor are arranged at the top and the bottom of the blowing
assembly respectively. According to the
numerical control machining high-precision tool setting device, the blow-off
drying mechanism, the shielding
protection mechanism and the driving mechanism are matched, air blowing, liquid removing and
drying can be conducted on a tool
nose of a tool firstly, meanwhile, an umbrella-shaped cover is used for protecting and shielding a tool setting gauge, contact tool setting is completed after resetting and avoiding are conducted, capillary acting force generated by a
cutting liquid film is fundamentally eliminated, and the working efficiency is improved. Real and reliable contact between the tool
nose and the tool setting gauge is guaranteed, and tool setting precision and repeated reliability are improved.