PATHAK PILLER DRILL MACHINE

COMPONENTS OF DRILLING MACHINE

Spindle:

                       The spindle holds the drill or cutting tools and revolves in a fixed position in a sleeve.

Sleeve:

The sleeve or quill assembly does not revolve but may slide in its bearing in a direction parallel to its axis. When the sleeve carrying the spindle with a cutting tool is lowered, the cutting tool is fed into the work: and when it’s moved upward, the cutting tool is withdrawn from the work. Feed pressure applied to the sleeve by hand or power causes the revolving drill to cut its way into the work a fraction of an mm per revolution.

Column:

 The column is cylindrical in shape and built rugged and solid. The column supports the head and the sleeve or quill assembly.

Head:

The head of the drilling machine is composed of the sleeve, a spindle, an electric motor and feed mechanism. The head is bolted to the column.

Worktable:

The worktable is supported on an arm mounted to the column. The worktable can be adjusted vertically to accommodate different heights of work or it can be swung completely out of the way. It may be tilted up to 90 degree in either direction, to allow long pieces to be end or angle drilled.

Base

The base of the drilling machine supports the entire machine and when bolted to the floor, provides for vibration-free operation and best machining accuracy. The top of the base is similar to the worktable and may be equipped with t- slot for mounting work too larger for the table.

Hand Feed:

The hand- feed drilling machines are the simplest and most common type of drilling machines in use today. These are light duty machine that are operated by the operator, using a feed handled, so that the operator is able to “feel” the action of the cutting tool as it cuts through the work piece. These drilling machines can be bench or floor mounted.

Power feed:

The power feed drilling machine are usually larger and heavier than the hand feed ones they are equipped with the ability to feed the cutting tool in to the work automatically, at preset depth of cut per revolution of the spindle these machines are used in maintenance for medium duty work or the work that uses large drills that require power feed larger work pieces are usually clamped directly to the table or base using t –bolts and clamps by a small work places are held in a vise. A depth –stop mechanism is located on the head, near the spindle, to aid in drilling to a precise depth.

Sensitive or Bench Drilling Machine

• This type of drill machine is used for very light works. Fig.1 illustrates the sketch of sensitive drilling machine.
• The vertical column carries a swiveling table the height of which can be adjusted according to the work piece height.
• The table can also be swung to any desired position.
• At the top of the column there are two pulleys connected by a belt, one pulley is mounted on the motor shaft and other on the machine spindle.
• Vertical movement to the spindle is given by the feed handle by the operator.
• Operator senses the cutting action so sensitive drilling machine.
• Drill holes from 1.5 to 15mm

 Regards,

 MR. JAGDISH  PATHAK , MD
 MR. RITESH PATHAK  , DIRECTOR SALES 

PATHAK MACHINE TOOLS  PVT. LTD

“Pyaradham” NH-6 (Bombay Road)

Prosastha Howrah – 711 302

Tel: (033) 2669 0475 ,  Fax. (033) 2669 1144

E-mail: sales@pathakmachines.com ,

 ritesh12@hotmail.com