The precision of the portal milling machine. How much precision is required, but if the user buys the machine, it is mainly used to perform finishing on the workpiece. With one or a half filaments even smaller, the precision of the portal milling machine is the primary core achievement. To perform rough machining on the blanks, it should be a measure of the force of the machine, which is the maximum amount of feeds at a time. Because he roughs the rough machining, the accuracy is not too high, but the efficiency is very high. So he demanded that the machine be powerful and the amount of knife should be large. Of course, the main force of the gantry milling machine is mainly the engine, but there is still an important place that cannot be ignored. That is the screw. If the quality of the screw is not reached or the screw is too small, if the machine power is too large, the machine speed is too high. Faster, larger knife, so the screw is very likely to deform or even break. Therefore, under such circumstances, it is also necessary to take into account the carrying capacity of the screw. The user's attention area should be irrelevant to the machined part. If the user buys this machine tool, it has an important purpose to process the blank. Now the use of machine tools has become very popular, but in recent years, a series of high-precision machine tools such as the new gantry milling machines have been neglected by the people. Some failures of the gantry milling machines can be avoided during maintenance. In the use of portal milling machines, the rules and regulations for daily maintenance of CNC machine tools have been formulated. Always check the grid voltage used by CNC machine tools. After 5 minutes boot, check everything is normal before you can use it normally. Turn on the normal automatic lubrication system. Check rail protection and timely oil. Shut off the machine dirt in time. Clean the guide rails and the table in time. Turn off the power in a timely manner. The above are some of the details of the attention in the daily use process. After paying attention to and maintaining the details, we can ensure the work efficiency and working accuracy of the portal milling machine.