Patent ID: 11914339
Assignee: CHENGDU AIRCRAFT INDUSTRIAL (GROUP) CO., LTD.
Field: Control (Instruments)
Classification: CPC G  Y | IPC G

Claim 2:
3. The datum selection method according to claim 2, wherein in the step (1), the type of the CNC machine tool includes a five-axis CNC machine tool of an AC pendulum angle type, and the five-axis CNC machine tool includes a machine tool bed, an X-axis motion unit, a Y-axis motion unit, a Z-axis motion unit, a C-axis motion unit, and an A-axis motion unit; and
the topological structure of the CNC machine tool is as follows: the machine tool bed→the X-axis motion unit→the Y-axis motion unit→the Z-axis motion unit→the C-axis motion unit→the A-axis motion unit, wherein the C-axis motion unit is pivotally connected to the Z-axis motion unit, the A-axis motion unit is pivotally connected to the C-axis motion unit, a machining spindle is solidly connected to the A-axis, and a tool is placed to be clamped on the machining spindle.