Strict Requirements for Five-Axis Simultaneous Machining Machine Tools

Five-axis simultaneous machining machine tools impose strict requirements on the NC interpolation controller and servo drive system. Why is that? Below, let's explore together with the editor what these strict requirements are.

The motion of a five-axis simultaneous machine tool is a synthesis of the movements of five coordinate axes. The addition of rotary axes not only increases the burden of interpolation calculations, but also makes the accuracy highly sensitive to rotary axis errors. As a result, the controller must offer higher operational precision. The motion characteristics of a five-axis machine tool demand that the servo drive system possess excellent dynamic response and a wide speed regulation range.

Furthermore, the NC program for five-axis machining is particularly critical. To improve machining efficiency, the traditional trial-cut verification method must be eliminated. In five-axis CNC machining, verification of the NC program becomes extremely important because the workpieces machined on five-axis CNC machine tools are usually very expensive. During five-axis CNC machining, collisions are a common problem, such as: the tool gouging into the workpiece, high-speed impact between the tool and the workpiece, collision between the tool and equipment like the machine tool or fixtures within the working envelope, and collision between moving parts and fixed components or the workpiece on the machine tool.

In five-axis CNC, collisions are difficult to predict, and the verification program must comprehensively analyze the machine tool kinematics and the control system.