Which type of jig, suits best for drilling of holes in hollow cylindrical components, such as bushes?

Explanation:

• A jig is a device in which a workpiece/component is held and located for a specific operation in such a way that it will guide one or more cutting tools to the same zone of machining.
• Types of drill jigs
• Drill jigs may be divided into two types
  • Open
  • Closed
• Open jigs are used when the operation is to be done only on one side of the piece. Closed jigs (Box jig) are used when the operations are to be done on more than one side of the piece. Jigs are identified according to the way they are built. The most commonly used jigs are:
  • Pot jig
  • Template jig
  • Plate jig
  • Table jig
  • Sandwich jig
  • Angle plate jig
  • Modified angle plate jig
  • Box jig
  • Channel jig
  • Leaf jig
  • Indexing jig
  • Solid jig
  • Post jig
  • Trunnion jig

Pot type jig

• This type of jig is used for drilling holes in circular components, which have both internal and external diameters.
• The body of the jig is in the form of a pot.
• The workpiece is located in the pot of the jig and is properly clamped with the help of a post type locating pins, a clamping plate, and a clamping device.

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