Structural Modeling and Simulation of Miniaturized Machine Tool: 3-Axis Vertical Micro-End-Milling System

Abstract

The emphasis on structural design of miniaturized machine tool (mMT) used in micro-machining process is different from that of conventional machine tool due to requirement of higher precision and stable performance. In this paper, structural modeling and simulation of 3-axis vertical micro-end-milling system is presented. Based on different components combination, three models of linear multi-degree-of-freedom vertical milling systems are constructed theoretically using high precision stages. The most suitable model is chosen by volumetric error calculation. Finite element method (FEM) is used for simulation of those numerical solid models. Static and dynamic analysis with different joint stiffness and loads is simulated by ANSYS. Prototype model is assembled according to the selected structure. Finally, surface roughness of the bottom of micro slots, which are machined by prototype model, is analyzed to verify the performance of mMT.

Parameter identification when designing a solid-modeling-based grinding-machine controller

“…Basic tuning rules, based on the system responses, have been analyzed [14,15], but there have been very few reports on performing servo tuning within a virtual environment. An FEM model has been used for volumetric error estimation [16], and a design and tuning process has been attempted within a virtual solid-modeling environment [17]. However, no research effort has addressed the actual implementation of a controller interface.…”