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Introduce a self-made 5-axis machine tool which is applicable to complex 3D micro-milling. Machine linear axis processing capacity is 250 mm Ã? 250 mm Ã? 150 mm, resolution is 0.1 Â¿m, turn table trip of A-axis is Â± 90Â°, and C-axis is Â± 180Â°, their resolutions are 2 angular second, so the machine can achieve micron-level precise machining. The key components of machine tool use a water-cooled high-speed spindle, precise ball screws and rails, servo motors, precise turn table, a 300 times industrial microscope and UMAC (Universal Motion and Automation Controller) multi-axis motion controller. UMAC and IPC (Industrial Personal Computer) constitute a dual-CPU system. CNC system that can implement G-code is researched, which can implement large-capacity program of process complex 3D parts based on rotary buffer. Using the PID controller with the feed-forward feedback algorithm makes the machine have high dynamic performance. Test results show that the milling machine tool has the capability of machining complex meso-scale 3D parts.
Date of Conference: 9-12 Aug. 2009