Vertical and horizontal spindles of five-axis machining centers

There are also two structures for vertical and horizontal spindles. One is to use a 45° inclined plane to convert the spindle vertically or horizontally (Figure 4). Its advantages are a large 45° bevel contact surface, good spindle rigidity, a mouse tooth plate for positioning, high repeatability, and the position of the tool center point remains unchanged after vertical and horizontal conversion, making it easy to program. Of course, its disadvantage is that it has no negative impact angle.

Another form is the A-axis. Its advantage is that it has a large X angle, which is especially suitable for processing large-angle impellers. However, its shortcomings are very obvious. The vertical and horizontal conversion will eat up the Z-axis travel. Generally speaking, the Z axis is the shortest among the X, Y, and Z axes of the machine tool. If it is eaten a little longer, it will greatly reduce the processing range of the machine tool.

Figure 4 Figure 6

Of course, some users hope to achieve clamping without affecting machine tool processing, so double worktables, multi-workstations (FMS), etc. are available as options (Figure 6).

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