文档介绍：外文出处: Proceedings of SPIE Vol. 4222 (2000) • 0277-786X!
外文原文
Quick and dynamic measurements of geometric errors C machines
ABSTRACT
In this paper, a system that is used to measure dynamically all kinds of geometric errors C machines is introduced, and some experiment results are given. The experiment results showed some significant differences between the static and dynamic error characteristics. Through analyses of the dynamic signals in both time and space fields, some error resources of C machines can be found. In addition, any shape of contouring errors can be directly measured by this system without using a ball bar or other devices, which provides a simple and practical way to evaluate contouring errors C machines.
Key Words: Machine Tool Metrology, Geometric Errors, and Dynamic Measurement
1. INTRODUCTION
Calibration of machine tools has e increasingly important for both machine tool builders and users over the past few years, and each country has its own standard to evaluate the performance C machines [13]• However, in these standards almost all the geometric errors are measured C machines are in a static state or a quasi-static state. That is, the machine axis is moved to target positions, stopped and a measurement recorded. This process is obviously very time-consuming, and may be labor-intensive. Nowadays, many modern measurement systems, such as HP 5529A la