Basic format and precautions for CNC lathe programming

CNC latheBefore programming

First of all, you need to understand the basic format of the program segment, the format, function and purpose of commonly used instructions. In fact, there are not many basic processing instructions, such as G00, G01, G02, G03, etc.;

Secondly, determine the processing route and try to mark the coordinate values ​​of the points on the route so that it is not easy to travel during programming;

Then write the program.

The general steps of program writing are summarized as follows: program number - program content - program end.

The content of the program usually consists of three parts:

(1) Preparation stage: establishment of workpiece coordinate system (must be programmed when absolute programming) - selection of tool - spindle rotation - rapid positioning (positioning to a few millimeters close to the workpiece);

(2) Processing stage: Prepare according to specific processing requirements;

(3) Ending stage: The tool quickly returns (usually returns to the starting tool position) - cancels tool data compensation.

If it is multi-tool processing, the processing process of each tool repeats the above three stages.

You have to become familiar with these steps of programming and then adapt to the changes.

For workpieces (bars) with complex shapes, multiple tools are usually required to complete the processing. When programming, analyze the process first, determine the fixture, tools and their processing routes. When writing the program, first write the processing content of one tool, and then consider the processing of another tool. This will make programming easier.