REVIEW ON SPECIAL PURPOSE MACHINE FOR DRILING AND TAPPING

Abstract

The growth of Indian manufacturing sector depends largely on its productivity & quality. Productivity can be improved by reducing the total machining time, combining the operations etc. In case of mass production where variety of jobs is less and quantity to be produced is huge, it is very essential to produce the job at a faster rate. This is not possible if we carry out the production by using general purpose machines. The best way to improve the productivity along with quality is by use of special purpose machine. SPMs or Special Purpose Machines offer tremendous scope for high volume production at low investment and at low cost of production when compared to VMC machines. SPM, Special Purpose Machines is a high productivity machine, with specially designed tooling and fixture, dedicated for mass producing the same component day in and day out. This paper show the way of development of SPM for drilling and riveting operation. The concept of SPM is that the plate having different size and thickness are drill on drilling spindle first and then tapped on tapping spindle latter, with the use of guide ways. Both the operation performs on same machine having two separate spindles. This machine is containing automation by using pneumatic system