CNC machining numerical control machine operation essentials and precautions

Numerical control machine tool operation essentials and precautions

(1) The power supply is connected. To check whether each meter is normal, whether the barometer is normal, and whether the oil and water meter is normal. If there is no problem, you can press the POWER ON button to connect the power supply. After a few seconds, the machine will self-check and the CRT will display the coordinates. If there is an alarm message, analyze and eliminate it yourself first. If it cannot be solved, immediately report it to the superior and ask a professional to deal with it. If it is normal, the next operation can be carried out.

(2) The machine returns to the reference zero point, either manually or automatically, in order to ensure the normal operation of the machine.

(3) Analyze the numerical control program sheet, compare the programming graphics, understand the entire knife situation, tool setting and clamping mode; prepare tools, measuring tools and fixtures; clamp the workpiece as required on the machine tool.

(4) The workpiece is corrected in the middle, and the mechanical value of the zero point of the workpiece coordinate system is input into the memory such as G54 and G55.

(5) Install the tool setting and enter the length compensation value into the H value.

(6) Copy the numerical control program and modify the head and tail of the program according to the existing knife number and compensation number.

(7) Turn on the high-pressure air dryer.

(8) In the DNC state, the numerical control program is transmitted through the DNC network.

(9) At the beginning, the knife should be fed slowly, and when the knife cuts into the workpiece, the feed rate switch will be adjusted to the normal speed when the cutting is smooth and normal. Adjust the speed switch to make the sound loud and the cutting is smooth. Determine the appropriate speed S and feed F according to the requirements, so that the cutting volume of each edge can reach the reasonable and efficient requirements.

(10) If machining steel parts, pay close attention to the degree of wear of the knife particles when opening, and adjust or replace them in time if any problems are found.

(11) It is necessary to have a good understanding of the machine tool accuracy, tool rotation accuracy, and machining errors you use, and to communicate closely with the programmer to ensure that there is enough margin for light cutting.

(12) After the processing is completed, it should be measured on the machine tool against the programming graphics. If it does not pass, the reason should be analyzed. It should be reprogrammed by adjusting the programming allowance or adjusting the compensation number until it passes. Remove it after passing. Clean the machine tool and prepare to process the next piece.