Three-axis machining center, four-axis machining center, five-axis machining center, what are the differences between these types of machine tools?
In a three-axis machining center, the most effective processing surface is only the top surface of the workpiece, so multiple clampings are required when processing parts. Therefore, the processing speed of parts is slow and the accuracy is low.
Four-axis linkage machining. The so-called four-axis linkage machining generally adds a rotation axis, which is usually called the fourth axis. This can automatically index and drill oblique holes, mill bevel edges, etc. Four sides can be processed, reducing the number of clamping times. Reduce accuracy loss.
In a five-axis machining center, the worktable set on the bed can rotate around the X-axis, which is defined as the A-axis. The general working range of the A-axis is +30 degrees to -120 degrees. There is also a rotary table in the middle of the worktable, which revolves around the Z-axis. Rotation is defined as the C axis. The C axis rotates 360 degrees. In this way, through the combination of the A axis and the C axis, except for the bottom surface of the workpiece fixed on the workbench, the remaining five surfaces can be processed by the vertical spindle. ·The minimum indexing value of the A-axis and C-axis is generally 0.001 degrees, which allows the workpiece to be subdivided into any angle and to process inclined surfaces, inclined holes, etc. The five-axis machining center can process complex parts while ensuring accuracy.