In: Mechanical Engineering
Explain SIMPLE INDEXING in Manufacturing of gears with an example
In simple indexing , an index plate selected for the particular application, is fitted on the worm shaft and locked through a locking pin.
To index the work through any required angle, the index crank pin is withdrawn from the hole of the ondex plane than the work is indexed through the required angle by turning the index crank through a calculated number of whole revolutions and holes on one of the hole circles , after which the index pin is relocated in the required hole.
Example : suppose it is desired to mill a gear with 8 equally spaced teeth.1/8 th of 40 or 5 turns of the crank after each cut , will space the gear for 8 teeth.