Page 606 - Sensors and Control Systems in Manufacturing
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Economic and Social Inter ests in the Workplace











































                     FIGURE 11.10  A dynamic manufacturing operation.                  559


                          Then the data will be fed back to the database and compared with
                          data for the workpiece that are to be machined, and full dimensional
                          data on the workpiece will be accessed. The vision sensor will then
                          scan the workpiece, and its dimensions will be compared with those
                          of the finished part in the parts library.
                             The data will then be fed back to the controller, which will instruct
                          the machine how to start machining, by reference to the database and
                          not to a specific program. When necessary, the workpiece will be
                          transferred to other places for automatic heat treatment or grinding,
                          and later to assembly. In this way, machining without programming
                          and without manual intervention will be practical. Lathes are unlikely
                          to need such a control system, and instead, the database would
                          contain a vast number of programs, the best one being selected
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