What is the selection principle of NC milling machine?

What is the selection principle of Zaozhuang CNC milling machine? Weihao machine tool editor will explain to you.

The lifting table Zaozhuang CNC milling machine with small specification has a worktable width of less than 400mm. It is suitable for the processing of small and medium-sized parts and the contour milling of complex surfaces. For larger specifications, such as gantry milling machine, the worktable is more than 500-600mm, which is used to solve the processing needs of large-size and complex parts.

1. Select according to the accuracy requirements of machined parts

China has formulated the precision standard of Zaozhuang CNC milling machine, among which the CNC vertical milling machine and lifting table milling machine have professional standards. The standard stipulates that the positioning accuracy of its linear motion coordinate is 0.04/300mm, the repeated positioning accuracy is 0.025mm, and the milling precision is 0.035mm. In fact, the factory accuracy of the machine tool has a considerable reserve, which is about 20% less than the standard tolerance. Therefore, from the perspective of precision selection, the general Zaozhuang CNC milling machine can meet the processing needs of most parts.

2. Select according to the processing characteristics of the processed parts

If the machining part is a frame plane or steps of different heights, Zaozhuang CNC milling machine with point position linear system can be selected. If the machining part is a curved surface contour, the two coordinate linkage and three coordinate linkage system shall be selected according to the geometry of the curved surface. According to the part processing requirements, on the basis of the general Zaozhuang NC milling machine, the NC dividing head or NC rotary table can also be added. At this time, the system of the machine tool is a four coordinate NC system, which can process spiral groove, blade parts, etc.

3. Select according to the batch of parts or other requirements

For large quantities, users can use special milling machines. If it is small batch and frequently repeated operation, it is very appropriate to use Zaozhuang CNC milling machine, because the first batch is ready to be stored and reused for many work fixtures and programs.

4. Select according to the size of the processed parts

The lifting table NC milling machine with small specification, whose worktable width is mostly less than 400mm, is suitable for the machining of small and medium-sized parts and the contour milling of complex surfaces. For larger specifications, such as gantry milling machine, the worktable is more than 500-600mm, which is used to solve the processing needs of large-size and complex parts.

5. Select according to the accuracy requirements of machined parts

China has formulated the accuracy standard of CNC milling machine, among which the CNC vertical milling machine and lifting table milling machine have professional standards. The standard stipulates that the positioning accuracy of its linear motion coordinate is 0.04/300mm, the repeated positioning accuracy is 0.025mm, and the milling precision is 0.035mm.