International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 05 | May 2022
p-ISSN: 2395-0072
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A Review on Fabrication of Universal Drilling Machine ROHAN KUMAR1, SAATVIK SAGAR2, AK MADAN3 Student, Mechanical Engineering, Delhi Technological University, New Delhi Professor, Mechanical Engineering department, Delhi Technological University, New Delhi ------------------------------------------------------------------------***---------------------------------------------------------------------Abstract 1, 2,
3
A lot of work is being done to get the final product out of immature products. These activities are carried out with the help of various machines. Mining is one of the most important industries. These operations are usually performed on two types of drilling machines, namely the Bench Drilling Machine and the other is a Hand Drill Machine. A bench piercing machine can be used for heavy tasks but to perform many tasks fails. It requires a lot of spinning machines to do the same. In the case of a hand drill, a great deal of effort from man is needed, and the machine survives. This world-class drilling rig is a combination of both a hand drill and a bench drill, which is designed to get the best results with reduced effort and time as well. This machine provides additional flexibility to travel in any direction due to its contact and construction. This machine can work on all sides provided by the operator. There are various connections and joints made in their construction that bring more flexibility to operation. A straight column is designed in such a way that it can rotate in a circular motion. The arm provides angular movement up and down and the latter provides precise stability and holds the engine and other joints to perform the function.
Introduction The drilling machine is one of the most common and is one of the most common and useful machines employed in industry for producing, forming and finishing holes in a work piece. The unit essentially consists of: 1. The spindle which turns the tool (called drill) which can be advanced in the work piece either automatically or by hand 2. A work table which holds the workpiece rigidly in position. Working principle: The Rotating edge of the drill exerts a large force on the work piece and the holes generated. The removal is by shearing and extrusion. History : About 35,000 BCE, Homo sapiens discovered the benefits of the use of rotating tools. This would involve a sharp sickle twisted between the hands of a person to pierce a hole in something. This led to the piercing of the hand, a smooth stick that was sometimes attached to a sandbar, rubbed between the hands. This was used by many ancient civilizations around the world including Mayors. The earliest known artifacts, such as bone, ivory, shells, and anecdotes have been found, dating to the Upper Paleolithic period. Bow drill (strap-drill) is a first-of-its-kind machine drill, as it converts back and forth motion into a rotating motion, and can be traced back about 10,000 years ago. It was found that tying a rope to a stick, and then connecting the ends of the rope to the end of the rod (bow), allows the wearer to pierce quickly and effectively. Mainly used to create fires, bow-drills were also used in ancient wooden, stone, and dental works. Archaeologists have unearthed Neolithic tombs in Mehrah, Pakistan since the time of the Harappa, about 7,500-9,000 years ago, consisting of 9 adult teeth with 11 teeth already bound. There are hieroglyphs depicting Egyptian carpenters and bead makers in Thebes tomb using archery tools. The earliest evidence of such tools used in Egypt dates back to about 2500 BCE The use of bow-drills was widespread in Europe, Africa, Asia, and North America, in ancient times, and it is still used today. Over the years a small variety of bow and string piercings have been developed for the use of boring materials by means of building materials or fires.
PROBLEM DEFINITION As we know, a drilling operation is a heart of many industries as well as it is also an important machine in domestic use. But if you want to have more number of holes on a same work piece, you have to use multi spindle drilling machine having a combination with radial drilling machine which become more costly and expensive. So it cannot be affordable for all. It also requires varying the positions of the work piece then it also affects the accuracy of the operation. If we are going to use a hand
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