Question

A device/mechanism used to position a work piece in the same position, cycle after the cycle is called

• A. Indexing device
• B. Guiding device
• C. Clamping device
• D. Locating device

Hint:

- Locating establishes the initial spatial orientation of the part. - Indexing shifts or repositions the part through precise, uniform steps or intervals across consecutive machining cycles.

Answer 1

The Correct Option is A

Concept: Jigs and fixtures incorporate several distinct functional components to manage workpieces during production runs:

• Locating elements: Establish the initial correct orientation and position of the workpiece by restricting its degrees of freedom relative to the cutting tool.

• Clamping elements: Apply holding forces to keep the workpiece firmly positioned against the locators under machining loads.

• Guiding elements: Physically steer and support the cutting tool (e.g., drill bushings).

• Indexing mechanisms: Rotate or translate the workpiece through precise, repeatable angular or linear increments, allowing identical features to be machined at regular intervals around a common center or line cycle after cycle.

Step 1: Analyze the phrase "position a workpiece in the same position, cycle after cycle". While basic locators fix a single static location, manufacturing operations often require machining multiple identical features across repetitive rotational cycles (such as cutting gear teeth, drilling holes around a circular flange, or shifting a part sequentially through automated stations). A mechanism that moves and repositions the workpiece into precise, repeatable locations across successive operational cycles is called an Indexing device.