I believe that friends in the industry are familiar with five axis machining center. Five axis machining center has five motion coordinate axes, namely two motion rotation axes and three straight-line motion coordinate axes. Generally speaking, according to the different installation positions of two rotation movements, it can be divided into AC combined rotation axis and BC combined rotation axis. Next, I will introduce the working range of AC rotation axis of five axis machining center 。
Working range and advantages of AC rotating axis of CNC five axis machining center
Generally, the axis around the x-axis of the five axis CNC machining center is defined as the a-axis, whose working range is + 30 ° to – 120 °. The worktable of the five axis machining center is equipped with a rotation axis, which rotates around the Z axis. We define it as the C rotation axis. The working range of the C rotation axis is 360 degrees. For the five axis machining center with a rotating axis and C rotating axis, the workpiece can be clamped once to finish machining other than the mounting surface. Generally, the minimum graduation value of a-axis and c-axis is 0.001 degrees, so that there is no angle on other surfaces except the installation surface, and complex processes such as machining inclined surface and inclined hole can be carried out. It can be realized that a-axis and c-axis and XYZ linear three-axis can do five axis linkage machining, and then complex curved workpiece can be processed. Of course, good CNC system, servo motor system and software support are required.
Structure advantage of AC rotating axis setting in five axis machining center
The advantages of the above AC rotating shaft are simple structure, good rigidity of the main shaft and low manufacturing cost. Generally, the worktable can not be set too large, and the bearing capacity is also relatively small, especially when the rotating axis a rotates to 90 degrees or more, it will bring great bearing moment to the worktable when processing workpieces.