False quintuple or true quintuple? What's the difference with triaxial?

With the rise of the automobile industry, more and more five-axis CNC machine tools. But in the current market, true five-axis (with RTCP function) machine tools are few, false five-axis (only do indexing function) machine tools are many. What is the true five axes, what is the false five axes, and what is the difference between three axes? The following description is as follows.

The true five axes have the RTCP function. It can be converted automatically according to the pendulum length of the spindle and the mechanical coordinates of the rotating table. When programming, only need to consider the coordinates of the workpiece, do not need to consider the pendulum length of the spindle and the position of the rotating table.

Whether it is true five axes, not to see whether the five axes linkage, false five axes can also be five axes linkage. If the main axis has RTCP true five axis algorithm. Is to do indexing processing, with RTCP function of the true five axis as long as the set of a coordinate system, only need to set the knife coordinates once. The false quintuple is a lot of trouble.

The CNC system with RTCP function can be programmed directly using the tool tip, without considering the distance from the center of the rotation axis. After the application of RTCP mode, programming 5 coordinate machining can be directly aimed at the tool tip rather than the center of the rotating spindle head, so programming will become simple and efficient.

As can be seen from the figure, multiple coordinates need to be set for the dual turntable false five-axis to achieve the purpose of indexing processing. But if it is a swinging head quintuple axis, then indexing machining is impossible, because the swinging head quintuple axis, when machining down, does not move Z alone, but Z moves with X or Y. At this time, the false five axis, programming will be very troublesome, debugging more difficult, at this time can not use the three-axis G51 offset function.