Machine Tool Automation
Numerical control (NC) is the greatest innovation in the achievement of machine tool automation in manufacturing. In this chapter, first a history of the development up to the advent of NC machine tools is briefly reviewed (Sect. 48.1 ). Then the machinin
- PDF / 3,876,168 Bytes
- 21 Pages / 547.087 x 685.984 pts Page_size
- 30 Downloads / 191 Views
Keiichi Shirase, Susumu Fujii
Numerical control (NC) is the greatest innovation in the achievement of machine tool automation in manufacturing. In this chapter, first a history of the development up to the advent of NC machine tools is briefly reviewed (Sect. 48.1). Then the machining centers and the turning centers are described with their key modules and integration into flexible manufacturing systems (FMS) and flexible manufacturing cells (FMC) in Sect. 48.2. NC part programming is described from manual programming to the computer-aided manufacturing (CAM) system in Sect. 48.3. In Sect. 48.4 and Sect. 48.5, following the technical innovations in the advanced hardware and software systems of NC machine tools, future control systems for intelligent CNC machine tools are presented.
48.1 The Advent of the NC Machine Tool ........ 48.1.1 From Hand Tool to Powered Machine................... 48.1.2 Copy Milling Machine.................. 48.1.3 NC Machine Tools .......................
839
48.2 Development of Machining Center and Turning Center............................... 48.2.1 Machining Center ....................... 48.2.2 Turning Center ........................... 48.2.3 Fully Automated Machining: FMS and FMC.............................. 48.3 NC Part Programming............................ 48.3.1 Manual Part Programming........... 48.3.2 Computer-Assisted Part Programming: APT and EXAPT ....... 48.3.3 CAM-Assisted Part Programming... 48.4 Technical Innovation in NC Machine Tools 48.4.1 Functional and Structural Innovation by Multitasking and Multiaxis ............................ 48.4.2 Innovation in Control Systems Toward Intelligent CNC Machine Tools......................................... 48.4.3 Current Technologies of Advanced CNC Machine Tools.... 48.4.4 Autonomous and Intelligent Machine Tool .............................
841 841 843 843 844 845 846 846 847
847
848 849 853
48.5 Key Technologies for Future Intelligent Machine Tool ........ 856
839 840 840
48.6 Further Reading ................................... 857
Numerical control (NC) is the greatest innovation in the achievement of machine tool automation in manufacturing. Machine tools have expanded their performance and ability since the era of the Industrial Revolution; however all machine tools were operated manually until the birth of the NC machine tool in 1952. Numerical control enabled control of the motion and sequence of machining operations with high accuracy and repeatability. In the 1960s, computers added even greater flexibility and reliability of machining operations. These machine tools which had computer numerical control were called CNC machine tools. A machining center, which is a highly automated NC
milling machine performing multiple milling operations, was developed to realize process integration as well as machining automation in 1958. A turning center, which is a highly automated NC lathe performing multiple turning operations, was also developed. These machine tools contributed to realize the flexible manufacturing s
Data Loading...
