Usually, the CNC cutting system automatically processes the machined parts according to the pre-programmed machining program (common drawing software AOTOCAD). We process the machining process of the parts, process parameters, tool trajectory, displacement, cutting parameters (spindle revolutions, feed, backfeed, etc.) and auxiliary functions (tool change, spindle forward, reverse, The cutting fluid is opened, closed, etc., and is programmed into a machining program according to the instruction code and program format specified by the CNC cutting system, and then the contents of the program list are recorded on the control medium (such as punched tape, tape, disk, magnetic bubble). The memory) is then input into the numerical control unit of the CNC machine to direct the machine to machine the parts.
This process from the analysis of the part drawing to the preparation of the control medium is called the preparation of the NC program. The difference between CNC cutting equipment and ordinary hand and semi-automatic cutting equipment in machining parts is that CNC cutting equipment automatically processes parts according to the program, while ordinary hand and semi-automatic cutting equipment needs to be operated by humans. We only need to change the control of machine tool movement. The program can achieve the purpose of processing different parts. Therefore, CNC cutting equipment is especially suitable for machining parts with small batch sizes and complex shapes and high precision!
Since the CNC cutting equipment has to process the parts according to the program, after the programmer has programmed the program, it is input into the numerical control system to direct the machine tool work. The input to the program is through the control medium. In this way, using the numerical control system to control the finished machining parts can be modified by the drafting personnel in time, and the use of the workpiece is more arbitrary, and the precision of the workpiece parts is greatly improved compared with the precision of the semi-automatic cutting equipment!