Automatic proofreading method and system for hole feature machining program based on knowledge engineering

The invention provides a knowledge engineering-based hole feature machining program automatic proofreading method and system. The method comprises the following steps of: constructing a hole machining decision knowledge base; on the basis of the machining features and PMI information obtained in the MBD model, retrieving data in a machining decision knowledge base corresponding to holes one by one, obtaining a machining process adopted by the hole machining features with the PMI information, forming a process route decision result, and representing the process route decision result by using XML (Extensible Markup Language); the method comprises the following steps: analyzing XML process contents by using a CAM system, generating process elements which can be identified and defined by the CAM system according to process contents defined in the XML, generating operation elements by the process elements, and correspondingly generating processing operations by the operation elements; and according to the acquired