Microcomputer Control of a General Purpose NC Drill for Printed Circuit Boards
The paper discusses the application of microcomputer in point-to-point positioning of an NC drill. A technique for minimization of the amount of programming required in a general purpose drill for printed circuit boards is the main concern. Active and passive electronic devices are categorized according to their types and pin connections. A subroutine is developed for each group of components and stored in the microcomputer permanent memory. Identification of the components and their initial positions are the only information required at the input of the microcomputer. A great reduction in programming efforts has been achieved and avoidance of the electromechanical tape readers has led to the elimination of much of their probable errors. The application can be regarded as an addition to the development facilities of electronic control research laboratory.
KeywordsPrint Circuit Board Register Unit Microcomputer System Microcomputer Control Control Drilling
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- 1.C.P.Miller (1977) Harnessing the Microprocessor, Tool & Production 7, P. 64–6Google Scholar
- 2.J.F.Mason (1975) Smart Machines in Industrial Electronics, Microprocessors New Directions for Designers, Heyden book company P. 26–9Google Scholar
- 3.G.Lee (1978) Designing Printed Circuit Boards for Production, Engineering 2 P. 120Google Scholar
- 6.A.H. AL-Anbuky & G.A. Swadi A Microcomputer Based Position Control System, To Be PublishedGoogle Scholar
- 7.A.B. Terco (1974) Numerical Control, Text BookGoogle Scholar
- 9.C.J. Charnley (1977) “Numerical Control” Present status and Future Potential of Numerical Engineering Methods 38 8 P. 21–6Google Scholar
- 10.S.C. Lapidge & A.D. Roberts (1977) Manufacturing Processes, McGraw Hill Book Company.Google Scholar