Drilling is defined as making a hole or drill or make a hole big in an object or component by running a rotating tool known as drill bit is called Drilling Machine.The Dril bit known as twist drill , shank drill, it has a sharp edges formed around a tool ,The Sharp edges of the surfaces ground as the lower end of the rotating twist drill, cut the material by peeling it circularly layer by layer when forced against a work piece.
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Types of Drilling Machines
Portable Drilling Machine
Sensitive and upright Drilling Machine
Radial Drilling Machines
Multi spindle Drilling Machines
Gang Drilling Machines
Deep Hole Drilling Machines
Multiple Spindle Drilling Machines
Automatic Drilling Machines
Belt Drive Drilling Machines
Geared Drilling Machines
Automatic Geared Drilling Machines
Double Column Radial Drilling Machines
AutoFeed Radial Drilling Machines
All Geared Radial Drilling Machines
Single Double Radial Drilling Machine
Special Purpose Drilling Machine
Pillar Drilling Machine
Portable Drilling Machine is a small and handy drilling machine with self contained unit carrying a small electric motor inside it
It is very commonly used to drill holes in the component when it is bigger in size like not movable in size , or when the space is restricted so taht no other type of drilling machine can be used.
Sensitive and UpRight Drilling Machine
Sensitive Drilling machines are similar to pillar drilling machines, these are available is sizes from 12 mm to 50 mm.Normally called bench drilling machines because these machines can mount on work benches also.
The operator can do the cutting operation while putting pressure on hand lever,thats why it called sensitive drilling machine
Radial Drilling Machine can able to perform the drilling machine operations on the work pieces which are too heavy and also may be too big to mount them on the work table of the vertical spindle drilling machine
It consist of a heavy base and vertical column with a long horizontal radial arm extending from it and can be rapidly raised lowered and swing in horizontal plane about the main column to any desired location.
The Drilling head can move to any desired location, the drilling head can mover to and fro along the arm and can be swivelled only in the universal radial drilling macihnes, to drill holes at any angle . the combination of motions of the radial arm and drilling head offer a great deal of flexibility in moving the drill to any position
The Main Advantage of the radial drilling machine is that the drilling can be carried out on heavy workpieces in any position without moving them.
Multi Spindle Drilling Machines
These Machines are vertical type drilling machines. They oermit drilling of several holes of different diameters simultaneously..Generally the spindles more than 2 -3 -4 or even more are driven by only one gear in the head through universal joint linkages.Each spindle is mounted with a twist drill.
Gang Drilling Machines
When several drilling spindles are mounted on single table, it is known as gang drill machine, in this type of drill, each of these spindles can be independently set for different speed and depth of cut.
Deep Hole Drilling Machines
Deep Hole Drilling Machines are used for drilling holes whose depth exceed normal drill size. these machines are operated at high speed and low feed.
Deep Hole Drilling Machines are either horizontal or vertical. The work or the drill may revolve. Most Machines are of horizontal construction using a center cut gun drill , which has a single cutting edge with a straight flute running throughout its length, oil under high pressure is forced to the cutting edge through a length vise hole in the drill.
Automatic Drilling Machines
Automatic Drilling machines are production machines arranged in series to perform a number of different operations in sequence at successive work stations.The workpieces, after completion of an operation at one station are automatically transferred to the next station for another operation.it works as a transfer line. several different operations like drilling , boring , tapping ,milling,housing,etc. can be performed on ajob in succession on these machines.
Belt Drive Drilling Machines
Belt drive drilling machines are generally known as pillar drilling machines, bench drilling machines, autofeed radial drilling machines. In Belt drive drilling machines transmission to machines are by V-Belt system.
Geared Drilling Machines
Geared drilling machines are generally known as pillar drilling machines, bench drilling machines,Geared radial drilling machines. In Geardrive drilling machines transmission to machines are by Direct coupled Motor
Automatic Geared Drilling Machines
Automatic Geared Drilling machines fitted with Ac Drive motors , ac drive motor on Feed, ac drive motor on speed, ac drive motor on lifting Automatic Geared Drill machines are fully automatic equipped with coolant system, machine lamp , control panel to operate.Automatic Geared drill machines known as core drill machines.
Double Column Radial Drilling Machines
Double column radial drilling machine is big size drilling machine can do operations from 25 mm to 100 mm Drilling holes .Double column radial drilling machines sitted with 2 columns. columns inside column with taper rollers bearings fitted for smoothly movement of Radial Arm , Double column radial drilling machines are very much comfortable for operators.
Autofeed Radial Drilling machines
Auto feed radial drilling machines are widely use in all type of industries, feed system is automatic with motor drive, hand lever option is also available in the machine . Auto feed radial drill machine is cheaper than Double column radial drill machine.
Single Double Radial Drilling Machine
Single Double radial drill machine is very cheaper than auto feed radial and all geared radial drill machine. single double radial drill machine is known as fine feed radial drill machine