The accuracy of CNC gantry milling machine refers to the original accuracy of the machine tool without external load. The accuracy is usually represented by its opposite value, which deviates from the ideal state. The smaller the error, the higher the accuracy; On the contrary, the greater the error, the lower the accuracy. Now the use of machine tools has been very popular, but in recent years, a series of high-precision machine tools, such as the newly introduced CNC gantry milling machine, have been ignored in daily maintenance. Some faults of CNC gantry milling machine can be avoided by maintenance. When using CNC gantry milling machine, formulate rules and regulations for daily maintenance of CNC gantry milling machine. In this way, the accuracy and life of the machine tool can be guaranteed to be longer, and good time efficiency can be created!
The test operation of the CNC gantry milling machine also needs to check the accuracy. The specific method is as follows:
1. Start the CNC gantry milling machine to move the workbench, check whether the moving direction is consistent with the rotating direction of the motor, and observe the lubrication of the workbench guide rail. If the lubrication is not good, please add lubricant in time.
2. Test the lifting movement of the crossbeam: before starting. Adjust the clearance of each sliding guide surface. Then loosen the screws to test the lifting movement.
3. Test feeding movement: before the test. Adjust the gap between the sliding guide surfaces of the tool holder, and check the sealing of each sliding surface by shaking the tool holder by hand; Then inject oil into each sliding surface to start the manipulation test, before the test. Adjust the gear or handle connected to the oil supply to the neutral position; Then observe whether the feeding mechanism operates normally, check whether there are obstacles, and then adjust each tool rest. To perform the electric feeding test in the horizontal and vertical feeding states.
4. After the test run is completed. Check the accuracy and adjust it item by item according to the qualification certificate. If necessary, the "t" shaped groove of the workbench can be improved.
CNC gantry milling machine is an automatic processing equipment developed on the basis of ordinary milling machine. Its principle is basically the same as that of ordinary milling machine. It can be divided into two types, without tool magazine and with tool magazine. The CNC gantry milling machine has high machining accuracy, stable and reliable quality, reduces the labor intensity of the operator, and is conducive to the automation of production management. Generally, there is no need to use special process equipment such as special fixtures. The CNC gantry milling machine has a variety of machine functions, which makes the processing highly centralized, greatly improves the production efficiency, and greatly shortens the production cycle.