360 Degree Flexible Drilling Machine Ed Project Review.pptx

T.A.ABDUL MUJEEB A.CLARSON PRAKASH K.ADHIYAMAN J. KEERTHI NATHAN



In previous drilling machine many of the problems arise during drilling. Some parts cannot drill due to small work space between drill bit and work piece. So we use hand drills in this cases but it cause alignment problems.







In this drilling machine,if the work piece is larger there is no need to change the position of the work piece In normal drilling machine,small work piece are not easily drilled because the alighnment or cracks were obtained. But we use 360 degree flexible drilling machine ,for drilling we can reduce the alignment and cracks for the given workpiece.

*Reduce the problem for cracks and alignment *We here propose a 360 degree flexible drill that can be mounted on a table or wall and can be used to drill holes horizontally, vertically or even upside down.so this make it possible for easy drilling in even complicated parts and surfaces.





Holes can be created in many ways, but even after the technology advances of the last decade, the most popular method remains drilling High-speed steel (HSS), solid-carbide, indexable, and interchangeable-head drills all have their place in manufacturing. But for shops looking to create different hole sizes quickly, interchangeable-head drills can provide the needed flexibility.

 



APPLICATION OF INTERCHANGEBLE HEAD DRILLS 1. Productivity. Productivity is improved thanks to reduced setup and changeover times. These drills also typically enable higher penetration rates than, for example, indexable insert drills, which increases throughput. 2. Cost. These tools are cheaper because the tool body is made of steel and doesn't need to be replaced for every tool change. The body can stay in the machine for many indexes of the head—as many as 50 indexes. This makes the cost of the drill body a very small part of total tool costs.



3. New technology. New interchangeable-head drills are coming to the market that eliminate the need for a spot-drilling cycle. This removes one entire operation, eliminates a tool change, and also reduces costs



The kinematic structure varies from machine tool to machine tool requiring different type and number of tool-work motions. Even for the same type of machine tool, say column drilling machine, the designer may take different kinematic structure depending upon productivity, process capability, durability, compactness, overall cost etc

1.Cutting motion The cutting motion in drilling machines is attained by rotating the drillat different speeds (rpm.). Like centre lathes, milling machines etc, drilling machines also need to have a reasonably large number of spindle speeds to cover the useful ranges of work material, tool material, drill diameter, machining and machine tool conditions. It is that the drill gets its rotary motion from the motor through the speed gear box (SGB) and a pair of bevel gears.

Feed motion In drilling machines, generally both the cutting motion and feed motion are imparted to the drill. Like cutting velocity or speed, the feed (rate) also needs varying (within a range) depending upon the tool-work materials and other conditions and requirements. The drill receives its feed motion from the output shaft through the feed gear box (FGB), and the clutch

Tool work The taper shank drills are fitted into the taper hole of the spindle either directly or through taper socket(s). Small straight shank drills are fitted through a drill chuck having taper shank. The work piece is kept rigidly fixed on the bed (of the table). Small jobs are generally held in vice and large or odd shaped jobs are directly mounted on the bed by clamping tools using the T-slots made in the top and side surfaces of the bed.



  



  

1) To put holes with high precision on engine heads, 2) Used in furniture making. 1) It is used in industries. 2) It is used with automation for automatic drilling. 3) In future it is used in every field where drilling is required. 4) Also use this method of rotation of arm in other machining operation.