Selection and installation of CNC milling machine
The principle of selection of CNC milling machines . According to the size of the parts to be machined, the smaller-sized lifting table CNC milling machine has a table width of less than 400mm. It is most suitable for the machining of small and medium-sized parts and contour milling of complex shapes. For larger specifications, such as gantry milling machines, the workbench is above 500-600mm, which is used to solve the processing needs of large and complex parts.
. According to the precision requirements of machined parts, China has established the accuracy standard of CNC milling machine. Among them, CNC vertical milling machine has a professional standard for lifting table milling machine. The standard stipulates that the linear motion coordinate positioning accuracy is 0.04/300mm, the repeat positioning accuracy is 0.025mm, and the milling precision is 0.035mm. In fact, the machine tool factory precision has a considerable reserve, which is about 20% smaller than the tolerance of the national standard. Therefore, from the perspective of accuracy selection, the general CNC milling machine can meet the processing needs of most parts. For parts with higher precision requirements, you should consider the use of precision CNC milling machines.
. According to the processing characteristics of the machined parts, if the machining parts are frame-shaped planes or unequal height steps, then the CNC milling machine with the point---linear system can be used. If the machining part is a curved surface profile, it should be based on the geometry of the surface. The shape determines the system that selects two coordinate linkages and three coordinate linkages.
According to the requirements of parts processing, on the basis of the general CNC milling machine, the numerical control indexing head or the numerical control rotary table can be added. At this time, the system of the machine tool is a four-coordinate numerical control system, which can process spiral grooves and blade parts.
. According to the batch size or other requirements of the parts, for the large batch, the user can use a special milling machine. If it is a small and medium batch and it is often repeated periodically, then CNC milling machines are very suitable, because the multi-tools, programs, etc. in the first batch can be stored and reused.
In the long run, the high degree of automation of milling machines replaces ordinary milling machines, and it is inevitable to reduce labor labor and increase productivity.
CNC milling machine installation
The general CNC milling machine is a mechatronics design. It is shipped from the manufacturer to the user. It is shipped from the whole machine and does not need to be disassembled. Therefore, after receiving the machine tool, the user only needs to follow the instructions. Pay attention to the following aspects:
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