A CNC machining center is a CNC machine tool with a tool magazine that can automatically change tools, and can perform various machining operations on the workpiece within a specified range. It was developed from CNC milling machines. The biggest difference from CNC milling machines is that the machining center has the ability to automatically exchange machining tools. By installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changer in one clamping. processing function.
In CNC lathe processing, the determination of the processing route generally follows the following principles:
①It should be able to ensure the accuracy and surface roughness of the workpiece to be processed.
② Make the processing route Z short, reduce the idle travel time, and improve the processing efficiency.
③ Try to simplify the workload of numerical calculation and simplify the processing program.
④ For some repetitive programs, subroutines should be used.
CNC machining has the following advantages:
① The number of tooling is greatly reduced, and complex tooling is not required to process parts with complex shapes. If you want to change the shape and size of the part, you only need to modify the part processing program, which is suitable for new product development and modification.
②Stable processing quality, high processing precision and high repeatability, which can meet the processing requirements of aircraft.
③ The production efficiency is high in the case of multi-variety and small batch production, which can reduce the time for production preparation, machine tool adjustment and process inspection, and the cutting time is reduced due to the use of the best cutting amount.
④ It can process complex profiles that are difficult to process by conventional methods, and even process some unobservable processing parts.
The disadvantage of CNC machining is that the machine tool is expensive and requires a high level of maintenance personnel.
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