What is the automatic programming method of NC milling machine?

What are the automatic programming methods of NC milling machine and what should be paid attention to in the machining process. Next, Weihao machine tool manufacturer will give you a brief explanation.

The automatic programming methods of NC milling machine mainly include NC language programming method and graphic interactive programming method. Automatic programming is that in the process of computer programming, except for the part of manual programming, all the rest are completed automatically by computer. Automatic programming effectively avoids the error problems prone to manual programming, improves the work efficiency of the program, and solves the programming difficulties of many complex parts that cannot be solved by manual programming. Automatic programming is that the computer automatically calculates the data required by the part according to the specific programming language, automatically draws the part graphics and tool path, automatically checks and modifies it, and formulates the correct machining program by itself. Moreover, in this series of processes, the speed of automatic programming is dozens of times or even more faster than manual programming, which greatly saves processing time and improves accuracy.

1. Types of NC automatic programming

The widely used automatic programming method is graphic NC automatic programming; NC language is used to represent the geometric dimensions of machined parts and the cutting parameters required by the process. The NC machining program obtained after input into the computer is NC language automatic programming; The voice recognizer is used to convert the processing voice command sent by the programmer into the processing program, which is the voice NC automatic programming.

2. Common instruction programming skills

(1) The functions of tool compensation parameters D and H are similar and can usually be interchanged. However, in order to prevent errors, h is generally set as the compensation address of tool length and D is the compensation address of tool radius.

(2) M02 and M30. The functions of the two are also similar. The difference is that when M02 is executed, the program cursor stops at the end of the program. When M30 is executed, the cursor returns to the program head position, whether there are other program segments or not.

3. Safe operation and processing, several points needing attention in processing

(1) Effective utilization of computer simulation system.

(2) Pay attention to the simulation display function of the machine tool.

(3) The empty running function of the machine tool shall check the correctness of the tool path.

(4) Make good use of the locking function. After the NC machine tool enters the input program, lock the z-axis. The coordinate value of z-axis can judge whether the machine tool will collide.

(5) The tool length compensation and coordinate system setting shall be accurate. The coordinate system must be consistent with that during programming when the machine tool is started, otherwise the milling cutter and workpiece may collide.