Correct option is C
A
fixture is a device used to
hold, support, and locate the workpiece securely during machining operations. Fixtures ensure that the workpiece remains fixed in a precise position to achieve accurate and repeatable results. Unlike jigs, fixtures do not guide the cutting tool; they only hold the workpiece in place.
Purpose of Fixtures:
· To maintain the correct position of the workpiece during machining.
· To increase productivity by enabling quicker and more accurate clamping.
Difference Between Jig and Fixture:
·
Jig: Guides the tool and holds the workpiece (e.g., drill jigs).
·
Fixture: Only holds and positions the workpiece but does not guide the tool (e.g., milling fixtures).
Common Types of Fixtures:
·
Milling Fixture: Used for holding workpieces during milling.
·
Turning Fixture: Holds the workpiece during turning on a lathe.
·
Grinding Fixture: Used for holding workpieces during grinding operations.
Advantages:
· Ensures accuracy and repeatability.
· Reduces setup time.
· Improves safety during machining.
