Design of an Instrumented Lathe Tool Post for Vibration Monitoring Studies

Abstract

The research presented here details the development of an instrumented lathe tool post which has potential use in conducting a wide range of vibration monitoring studies, including condition-based maintenance or prognostic health management. The system developed allows for the modular mounting of instruments in differing configurations on an industry-standard tool post, which was developed in collaboration with a first-year graduate class in sensors and signals at the Colorado School of Mines. Data acquisition and the development of an interactive data analysis tool used for post-processing is discussed using results from a case study obtained by turning 304 stainless steel on a shop lathe. It is shown that chatter can be detected using a novel bi-level FFT approach at low computational cost. Potential future applications for the developed system are introduced, including real-time tool condition analysis and the development of a fully instrumented machine shop.

The Design and Simulation of Main Tool Carrier System in a Condition of Large Vertical Lathe

“…The structures of machine tool carrier system are different because of different nature of work of the machine tool, but it's important position is the same in a variety of machine tools [3]. Practical tool carrier system of large vertical lathe is more complex, containing some of accessory structure, such as driving devices, monitoring devices, etc [4,5]. In order to achieve the purpose of analysis, as shown in Figure 1, design simplifily tool carrier system of the large vertical lathe, it includes ram, sliding plate, binding screws and tools.…”