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Which five axis linkage CNC machine tool refers to

2023-07-04(90)

In addition to the X, Y, and Z axes, the...
In addition to the X, Y, and Z axes, there is also a rotation axis and a swing axis. The rotation axis can be either the A-axis or the B-axis or the C-axis. The rotation axis can rotate 360 degrees, while the swing axis is defined in addition to the rotation axis (such as the A-axis). One of the remaining two axes (such as B or C) can only swing within a certain angle (such as plus or minus 90 degrees) and cannot rotate 360 degrees.
Which five axis linkage CNC machine tool refers to?
For 5-axis horizontal machining centers, 5-axis composite machining centers, etc., the axis rotating around X is called the A-axis, and the axis rotating around Y and Z is called the B and C-axis.
The five axis linkage machining center has the characteristics of high efficiency and precision, and the workpiece can be machined into a pentahedron with just one clamping. If equipped with a five axis linkage CNC system, it can also perform high-precision machining on complex spatial surfaces, which is more suitable for the processing of modern molds such as automotive components and aircraft structural components.
There are two ways to rotate the axis of a vertical five axis machining center. One is the worktable axis, which is set on the bed and can rotate around the X-axis, defined as the A-axis. The A-axis generally operates within a range of+30 degrees to -120 degrees.
The use of five axis linkage machine tools makes it easy to clamp workpieces. There is no need for special fixtures during processing, which reduces the cost of fixtures, avoids multiple clamping, and improves the accuracy of mold processing. Using five axis technology to process molds can reduce the number of fixtures used.
In addition, due to the fact that the five axis linkage machine tool can save many special tools in processing, the tool cost is reduced. Five axis linkage machine tools can increase the effective cutting edge length of cutting tools, reduce cutting force, improve tool service life, and reduce costs in machining.
In traditional mold processing, vertical machining centers are generally used to complete the milling of workpieces. With the continuous development of mold manufacturing technology, some weaknesses of vertical machining centers themselves are becoming increasingly apparent. Modern mold processing generally uses ball end milling cutters for processing. The benefits of ball end milling cutters in mold processing are very obvious. However, if a vertical machining center is used, the linear velocity of its bottom surface is zero, resulting in poor surface smoothness. If four or five axis linkage machine tool processing technology is used to process molds, the above shortcomings can be overcome.


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