How to choose tool for CNC machining center
CNC machining center is a CNC machine tool equipment with automatic tool change device, all the tools are pre-installed in the knife library, through the NC program of knife selection and knife change instructions for the corresponding automatic tool change action. Therefore, the choice of cutting tools is one of the important contents of CNC machining center processing technology, not only affects the processing efficiency of machine tools, but also directly affects the processing quality of parts.
The general principle of tool selection is: easy installation and adjustment, good rigidity, durability and high precision. On the premise of meeting the processing requirements, shorter shank is selected as far as possible to improve the rigidity of tool processing.
When selecting a cutter, it is necessary to make the size of the cutter adapt to the surface size of the workpiece being processed.
In production, plane parts peripheral contour processing, often use end milling cutter; When milling plane, should choose carbide blade milling cutter;
Processing boss, groove, choose high speed steel end milling cutter;
When machining blank surface or rough machining hole, corn milling cutter with cemented carbide blade can be selected;
For some vertical surface and bevel contour shape processing, often used ball milling cutter, ring milling cutter, conical milling cutter and disc milling cutter.
In the machining center, all kinds of tools are installed on the knife library, according to the program at any time to choose and change the knife action. Therefore, the standard tool holder must be used in order to make the standard tool used in drilling, boring, expanding, milling and other processes, quickly and accurately installed to the machine tool spindle or tool library programming personnel should understand the tool holder used on the machine tool size, adjustment method and adjustment range, in order to determine the radial and axial dimensions of the tool in programming.
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