What is true five axis, what is false five axis?

Release time:

2020-12-03

In the current market, there are few true five-axis (with RTCP function) machine tools, and many false five-axis (only do indexing function) machine tools. What is the true five axis, what is the false five axis, and what is the difference between the three axis? The following instructions are as follows. True five axis is to have RTCP function. It can be automatically converted according to the swing length of the spindle and the mechanical coordinates of the rotating table. In the preparation of the program, only need to consider the coordinates of the workpiece, do not need to consider the spindle length and the position of the rotary table. Whether it is true five-axis, not to see whether the five axis linkage, false five-axis can also be five-axis linkage. If the main axis has RTCP true five-axis algorithm. Is to do indexing processing, the real five-axis with RTCP function only needs to set a coordinate system, and only needs to set the coordinates once. And false five axis is a lot of trouble. The CNC system with RTCP function can be programmed directly with the tool tip without considering the center distance of the rotation axis. After applying RTCP mode, programming 5-coordinate machining can be directly aimed at the tool tip instead of the center of the rotating spindle head, so programming will become much simpler and more efficient. From the figure, we can see that for the false five-axis of the double turntable, it is necessary to set multiple coordinates to achieve the purpose of indexing processing. However, if it is a pendulum head type five-axis, indexing processing cannot be completed, because the pendulum head five-axis, in the downward processing, is not a separate Z movement, Z and X or Y together. At this time of the false five-axis, programming will be very troublesome, debugging is more difficult, at this time can not use the three-axis G51 offset function.

True five axis is to have RTCP function. It can be automatically converted according to the swing length of the spindle and the mechanical coordinates of the rotating table. In the preparation of the program, only need to consider the coordinates of the workpiece, do not need to consider the spindle length and the position of the rotary table.

Whether it is true five-axis, not to see whether the five axis linkage, false five-axis can also be five-axis linkage. If the main axis has RTCP true five-axis algorithm. Is to do indexing processing, the real five-axis with RTCP function only needs to set a coordinate system, and only needs to set the coordinates once. And false five axis is a lot of trouble.

The CNC system with RTCP function can be programmed directly with the tool tip without considering the center distance of the rotation axis. After applying RTCP mode, programming 5-coordinate machining can be directly aimed at the tool tip instead of the center of the rotating spindle head, so programming will become much simpler and more efficient.

From the figure, we can see that for the false five-axis of the double turntable, it is necessary to set multiple coordinates to achieve the purpose of indexing processing. However, if it is a pendulum head type five-axis, indexing processing cannot be completed, because the pendulum head five-axis, in the downward processing, is not a separate Z movement, Z and X or Y together. At this time of the false five-axis, programming will be very troublesome, debugging is more difficult, at this time can not use the three-axis G51 offset function.