Design of Jig and Fixtures for Productivity Improvement of Stirrup Making Activity

The successful running of any mass production depends upon the interchangeability to facilitate easy assembly and reduction of unit cost. Mass production methods demand a fast and easy method of positioning work for accurate operations on it. Jigs and fixtures are production tools used to accurately manufacture duplicate and interchangeable parts. Jigs and fixtures are specially designed so that large numbers of components can be machined or assembled identically, and to ensure interchangeability of components. The activity which we are considering is the “Stirrup Manufacturing�. Stirrups are the rectangular or square shaped frame which bounds the rods in the foundation pillars and beams. Traditionally stirrups are manufactured on a wooden platform provided with pins with respect to which the rod is bent with the help of lever. The force is applied in the form of torque and the pin works as a fulcrum point for the torque. So a special platform is being designed with jig and fixtures to improve the production rate, accuracy and comfort of the activity.