CNC milling machine cutting process, the cause of many processing errors, caused by the tool runout which is an important factor, which directly affects the shape of the smallest error processing machines under ideal conditions can be achieved and the machined surface geometry accuracy. In the actual cutting, the radial runout tool affect machining accuracy, surface roughness, tool wear and unevenness characteristics of multi-tooth cutting process tool. Tool runout, the more unstable the processing status of the tool, the more influence the processing results.

Second, the runout causes

Tool manufacturing error and spindle unit, clamping error caused by drift and eccentricity between the tool axis and the rotation axis of the spindle over, as well as specific processing technology, tooling and so may produce CNC milling tool in the processing of the runout.

1, spindle runout itself the impact

The main reason spindle runout are each journal concentricity error of the spindle, bearing their own kinds of errors, concentricity error between the bearings, shaft deflection, etc., which radial rotary precision spindle effect size with different processing methods and different. These factors are the machine manufacturing and assembly process of the formation as a machine operator is difficult to avoid the impact they bring.