Look at the program
Each operation of the CNC machine tool is determined according to the instructions. By checking the program statement and program name, find out the existing problems and correct them in time. When checking the procedure, in order to avoid repetition and omission, it should be carried out in accordance with the specified inspection sequence:
1. Check the program name. Because the completion of the basic operation of numerical control requires a large number of program instructions to control, a large number of program files will be stored in the system of single chip microcomputer, and the program name will be lowered in the automatic mode, especially the suffix of the program name and the program format should be checked.
2. Check the program fragment. Use the form of computer software simulation to check the specific statements. If there is a problem in the upper and lower logic of the statement, the simulation software will automatically point out the existing problems, so that programmers can modify the program in time until there is no problem in the operating program.
2、 Workpiece coordinates
The contents displayed on the screen include: the machine coordinate, workpiece coordinate and other details of the current tool. When checking, pay attention to comparing the screen value with the actual tool tip position to ensure that the coordinate values between the two correspond. Due to the influence of machine tool fixtures, tool wear and other factors, workpiece coordinates often have certain errors. If the error exceeds the standard range, it will affect the machining progress of the machine tool and cause collision problems. Therefore, the problem can be effectively avoided by comparing the workpiece coordinates.
3、 Tip position
The cutting tool is one of the important parts of the equipment. The machining and cutting operations of the NC machine tool are completed by the cutting tool. Therefore, when checking the machine tool, we should focus on the position of the tool tip. Because the tool will be worn after a period of use, on the premise of not affecting the machining quality of the machine tool, the machine tool operator needs to regularly adjust the tool position to prevent the tool from colliding with the workpiece or chuck. In addition, the actual position of the tool tip should also be compared with the data displayed on the screen. If there is a large error between the two values, it is necessary to stop the operation immediately, exit the tool after shutdown, and reinstall and adjust.