The CNC machining feed path refers to the path of the turning tool returning from the tool setting point (or the fixed origin of the machine tool) to this point and completing the machining program, including cutting paths such as cutting in and cutting out of the tool and non-cutting empty travel paths. The feed path of finishing is basically carried out in sequence along the generalization of the parts. Therefore, the point of confirming the feed path is to confirm the feed path for rough machining and idle stroke.
CNC machining refers to the use of CNC machining plastic tools for machining. CNC is an exponential control machine tool is programmed and controlled by CNC machining language, usually g code. The CNC machining g-code language tells which Cartesian position coordinate of the CNC machine tool to use, and controls the feed rate and spindle speed of the tool, as well as the tool changer, coolant and other functions. The CNC machining feed path should be able to ensure the accuracy and surface roughness of the processed workpiece. The CNC machining feed path should make the machining path shorter, reduce the idle time, and increase the machining power. The CNC machining feed path should try to simplify the numerical calculation workload and simplify the machining process. For some reusable programs, subroutines should be used.
CNC machining has great advantages over manual machining. For example, parts produced by CNC machining plastic are very accurate and repeatable. CNC machining can produce messy-shaped parts, and these parts cannot be done by hand. CNC machining technology has been widely promoted. Most machining workshops have CNC machining capabilities. The more common CNC machining methods in typical machining workshops are CNC milling, CNC lathes and CNC wire cutting (EDM wire cutting).
CNC machining can greatly reduce the number of tooling, and the machining of messy-shaped parts does not require messy tooling. If you want to change the shape and size of the part, you only need to modify the part machining program, which is suitable for the development and modification of new products. The CNC machining quality is stable, the machining accuracy is high, and the repeat accuracy is high, which meets the machining requirements of the aircraft. Under the conditions of various types and small batch production, CNC add-ins have higher production power, which can reduce the time of production preparation, machine tool adjustment and process inspection, and reduce the cutting time due to the use of better cutting volume. CNC machining plastic can process messy generalizations that are difficult to process with traditional methods, and even process some unobservable processed parts.