Plane precision correction device when surface milling machining with variable rotation speed

摘要

(57) Abstract Objective To grip work with the hydraulic chuck, fixed circumferential speed controlSo with cutting speed almost as fixed the end face the occasion where it cuts, the grip pawlThe plane surface precision defectiveness which is generated with change of centrifugal force operation it is not,Doing, you obtain the plane surface precision which it stabilizes. Constitution In hydraulic chuck 2 air nozzle 8 work this connectionTo provide the arrival seat patch 7 aperture to the surface, the air to the air nozzleProviding air sensor 13 on the middle of supply path 12, the arrival seat applyingDetecting the change of the path internal pressure power with the opening change of the gold and workTo do, with this detection signal with voltage control section 21 output voltage varyingObtaining, it supplies to the solenoid SOL1 of electromagnetic proportional pressure reducing valve 17The retention span which it does, changes to fixed circumferential speed control with ru rpm changeTo hold down change, with the displacement of Z axial position of work as minute satisfactoryProfile irregularity is obtained.