The application discloses a method for
processing a fine boring support hole and belongs to the technical field of
machining; the method is based on the user
macro program function of a
numerical control system, a general
macro program with structure solidification and no
mode selection variable is called, and self-adaptive fine boring
processing of an intermittent coaxial hole
system is realized; the method comprises the following steps: positioning to a
processing starting point; calling a
macro program and inputting an initial tool relief
distance parameter and alternately appearing hole section thickness and hole gap parameters in a sequential assignment mode; a sequential execution state
machine based on parameter existence is adopted in the macro program, a processing section number is automatically identified through continuous IF condition judgment, and corresponding processing units are executed; after one side processing is completed, a coordinate
mirror image function is automatically activated to process the other side hole
system. According to the application, an operator can directly input parameters according to drawing size without any calculation, the program body is not modified with the change of the number of processing holes,
programming efficiency and program universality are remarkably improved, and the processing efficiency and precision are improved through air block rapid movement and
mirror image processing.