Characteristics and Selection of Five-Axis Machining Machine Tools

Whether it is a five-sided processing machine tool or a five-axis linkage processing machine tool, they all add at least two of the three rotary motion axes A, B, and C to the three linear motion axes of X, Y, and Z. This exports various layout plans for five-axis machining machines. The appropriate machine tool structural layout can be determined based on factors such as the shape, size, weight, required accuracy, mechanical properties of the material, and cutting load of the workpiece.

Table 1 lists 10 common layouts based on the three-linear axis structural layout of vertical machining centers and horizontal machining centers configured with different rotary motion types and their applicable applications. There are two types of rotary axis types in the table: the split type means that the tool and the workpiece have one rotary motion axis respectively, while the integrated type means that both rotary axes are configured for the tool or the workpiece, which is often called a double pendulum milling head or a double pendulum turntable.

Number 6 in the table has two double swing turntables, A/C and B/C. Although the working principle is the same, the A/C turntable has left and right supports and is more rigid. However, when the table is turned backwards, due to the narrow space, it is generally difficult to prevent interference. The swing angle is small, while the B/C turntable is usually a single-arm support with less rigidity, but the swing angle range is large and easy to observe, so it is suitable for processing small parts.

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