Drilling Machines The Basic Drilling operation Types of

Drilling Machines The Basic Drilling operation. Types of Drilling machines. Operations of Drilling Machines Types of Drilling Machines

Drilling is the operation of originating a hole

Old Modern

Hand Drill Machine A Set of Drills

Heavy duty Hand Drilling Machine

Drill bits

Sensitive Drill Machine

Bench Drilling Machine This type of Machine is short in height. Feeding Lever Drill Chuck Drill Column Auxiliary Table Base It is usually mounted on a Bench ( Work table)

Basic Parts of a Drilling Machine • Base – It supports the entire structure & vertical column • Column – It supports the work table & driving mechanism. It bears the entire cutting pressure of the drill. • Table – It is mounted on the column. Provided with T slots to clamp the work piece. It may be circular or rectangular in shape. It can be moved up & down. • Head – It is mounted on the top of the column. It consists of driving & feeding mechanism for the spindle • Spindle & feed mechanism – Spindle holds the drill tool & is rotated at multiple speeds by a step cone pulley drive or by gear mechanism