Correct option is B
An indexing fixture is a specialized device used to rotate a workpiece by precise angular increments during machining. This is essential in operations such as gear cutting, spline milling, and flute cutting on milling machines, where accurate division of a workpiece is required.
The indexing head (dividing head) allows the workpiece to be divided into equal or required angular divisions, making it crucial for gear cutting operations on a milling machine.
Applications of Indexing Fixtures:
· Gear cutting (involute, spur, helical, and bevel gears).
· Milling splines, flutes, and keyways.
· Rotary milling of bolt heads, cam profiles, and tool shanks.
