1. Dimensions of machined parts
Select the milling machine according to the dimensions of the parts to be machined.Such as smaller specifications of the lifting platform milling machine, the width of the table is more than 400mm, the most suitable for small and medium-sized parts processing and complex profile milling tasks.And larger specifications such as gantry type milling machine, table in 500-600mm or more, can be used to solve the processing needs of large size complex parts.Users should also pay attention to this point when choosing the universal milling machine model.
2. Precision requirements of machining parts
According to the precision of the parts to be machined to choose the North milling machine.Our country has developed the milling machine accuracy standard, which vertical milling machine lifting platform milling machine has professional standards: the standard provides that the positioning accuracy of the linear motion coordinates is 0.04/300mm, repeated positioning accuracy is 0.025mm, milling precision 0.035mm.In fact, the factory accuracy of the machine tools have a considerable amount of storage, than the national standard allowable value of about 20 compression.Therefore, from the point of precision selection, the general milling machine can meet the processing needs of most parts.For high precision parts, we should consider the selection of precision CNC milling machine.
3. Processing characteristics of the machined parts
Choose according to the processing characteristics of the processed parts.For the processing parts of the frame plane or different heights of the steps, the selection of point-linear system milling machine can be.If the machining part is a curved surface contour, two coordinate linkage and three coordinate linkage system should be selected according to the geometric shape of the curved surface.In addition, according to the parts processing requirements, on the basis of the general milling machine, increase the head or CNC rotary table, can process spiral groove, blade parts, etc.
4. Batch of parts
For large quantities, buyers can choose a special milling machine.If it is a small and medium-sized batch and regular, periodic repeated production, then the use of ordinary milling machine is very appropriate, because the first batch of a lot of ready fixtures, procedures and so on can be stored and reused.
Post time: Jul-22-2021