1. Good flexibility
The control function of hard wired NC machine tool is realized by hardware circuit. If you want to change the processing control function of the system, you must rewire. CNC machine tools can flexibly change or increase the functions of the CNC system through the programming of software, which has great flexibility.
2. Powerful function
CNC machine tools make use of the high computing and processing ability of computers to realize many complex numerical control functions, such as quadratic curve interpolation, multi axis linkage, fixed cycle machining, coordinate offset, graphic display, tool compensation, etc., so that the tool can realize any trajectory in three-dimensional space and complete the machining process of complex surfaces. Hard wired NC device can only carry out simple straight-line and arc interpolation calculation to complete the processing of straight-line and arc.
3. Good versatility
CNC machine tools can be programmed with different software to meet the different processing requirements of various machine tools. In this way, the same CNC device can be used to meet the requirements of various CNC machine tools, reflecting strong versatility. However, due to different functions and types of hard wired NC machine tools, NC devices are different and cannot be used in general.
4. High reliability
The part program of hard wired NC machine tool is read and processed in sections in the processing process. Frequent startup of photoelectric reader may cause faults and cause part program errors, which is the main reason for the low reliability of hard wired NC device. CNC machine tools can use tape, floppy disk and other input devices to input the part processing program into the memory at one time, which avoids the errors caused by frequently opening the photoelectric reader in the processing process and improves the reliability. CNC machine tools are also easy to set up various diagnostic programs, which can carry out fault pre inspection and automatic search, facilitate maintenance and reduce downtime.
5. Easy to realize electromechanical integration
CNC machine tool adopts large-scale integrated circuit and advanced printing and typesetting technology. The whole control system can be formed by using several printed circuit boards, which greatly reduces the size of its hardware structure, and can be combined with the machine tool to reduce the floor area and realize electromechanical integration.
