At the beginning of the CNC machine tool, the aircraft parts with complex surface are selected as the processing object, which is difficult to solve the key problem that ordinary processing methods are difficult to solve. The big feature of CNC machining is to use perforated tape (or tape) to control the machine tool for automatic processing. Aircraft, rocket and engine parts have different characteristics: aircraft and rocket zero, component size is large, complex shape; Zero engine, small component size, high precision. Therefore, the CNC machine tools selected by the aircraft, rocket manufacturing department and the engine manufacturing department are different. In aircraft and rocket manufacturing, large-scale CNC milling machines with continuous control are used, and in engine manufacturing, both continuously controlled CNC machine tools are used, and point-controlled CNC machine tools are used (such as CNC drilling machines, CNC boring machines, machining centers, etc.).
Process concentration
CNC machine tools generally have a tool holder and a tool library that can automatically change the tool, and the tool change process is automatically controlled by the program, so the process is more concentrated. Process concentration brings huge economic benefits:
(1) Reduce the area of the machine tool and save the plant.
(2) Reduce or have no intermediate links (such as intermediate testing of semi-finished products, temporary storage handling, etc.), saving both time and manpower.
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