| 摘要 |
Disclosed is a method for machining a component using a CNC or an NC machine. The method includes the steps of mounting the component at a location on the machine and providing a pair of datum points, e.g., "locating holes" or dowels, on the component. A first base line is defined to extend through the datum points and a second base line is defined to intersect the first base line at an intersection. While retaining the component at its mounting location, such component is machined using dimensions measured from the base line intersection. The new method avoids the inaccuracies, e.g., tolerances and tolerance "buildup," that often results from the use of jigs, fixtures and the like. In other words, the component itself becomes the reference for machining. The method is particularly useful in making parts such as detachable, unevenly-wearing gear segments which can be turned end-for-end for greatly improved service life. |
