Volumetric Error Model for Multi-Axis Machine Tools

Indirect Measurement of Volumetric Accuracy for Three-Axis and Five-Axis Machine Tools: A Review

Real-Time Interpolators for Multi-Axis CNC Machine Tools

This paper presents a new real-time interpolation architecture for CNC machine tools. The real-time approach calculates new commands for the control loops during a short period of one sampling time. This makes the real-time interpolator capable of generating accurate references for the axes and eliminates unneeded in-segment accelerations and decelerations. Consequently, it produces smoother pa...

A Generic Kinematic Error Model for Machine Tools

A generic kinematic error model is proposed to characterize the geometric error of machine tools. Firstly, modeling was made on a moving bridge gantry machine, a moving table machine and a horizontal spindle machine respectively by means of the conventional homogeneous coordinate transformation. Then these models were generalized to derive the generic error model which is able to accommodate th...

Remote Servo Tuning System for Multi-Axis CNC Machine Tools Using a Virtual Machine Tool Approach

Servo systems affect the performances of machining in accuracy and surface quality for high speed and precision machine tools. This study introduces an efficient servo tuning technique for Computer Numerical Control (CNC) feed drive systems using particle swarm optimization (PSO) algorithm by virtual machine tool approach. The proposed approach contained a system identification phase and a serv...

Error Model and Accuracy Calibration of 5-Axis Machine Tool

To improve the machining precision and reduce the geometric errors for 5-axis machinetool, error model and calibration are presented in this paper. Error model is realized by the theory of multi-body system and characteristic matrixes, which can establish the relationship between the cutting tool and the workpiece in theory. The accuracy calibration was difficult to achieve, but by a laser appr...