CNC programming of Dalian CNC machining
CNC machining center is an efficient automatic machine tool composed of mechanical equipment and CNC system, which is suitable for machining complex parts. CNC machining center is one of the most widely used CNC machine tools with the highest output in the world. Its comprehensive processing capacity is strong. After the workpiece is clamped once, it can complete more processing contents. With high processing accuracy, the batch of workpieces with medium processing difficulty is 5 to 10 times more efficient than ordinary equipment. In particular, it can complete processing that many ordinary equipment cannot complete. It is more suitable for single piece processing with complex shape and high accuracy requirements or small to medium batch and multi variety production. According to the machining accuracy, there are ordinary machining centers and high-precision machining centers. Common machining center, resolution 1 μ m. Maximum feed speed: 15 ～ 25m/min, positioning accuracy: l0 μ M or so.
The routine processing program consists of the start character (single column and one segment), program name (single column and one segment), program body and program end instruction (generally single column and one segment). There is also a program terminator at the end of the program. The program start character is the same as the program end character:% in ISO code and ER in EIA code. The program end command can be M02 (program end) or M30 (paper tape end). At present, CNC machine tools generally use stored programs to run. At this time, the common point of M02 and M30 is to stop the spindle, coolant and feed and reset the control system after completing all other commands in the program section. A program segment is a continuous word group that can be processed as a unit. It is actually a segment of the NC machining program. The main body of the part processing program consists of several program segments.