Talking about the large lead multi-thread thread hanging wheel and the dividing method
Large lead screw, worm, spiral spline, etc. all use multi-thread thread to ensure fast transmission. In the turning, the multi-thread thread splitting method has axial line dividing method (percent dial, block gauge branch) , small knife holder scale line) and circumferential line method (hanging tooth tooth split line and indexing plate split line) and so on. The key to turning a multi-thread thread is the exact line of the thread, which is simple and precise, and does not add accessories. If the split line is not allowed, the split line error will occur, which will make the pitch different, which will seriously affect the precision of the thread fit.
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