Drilling Machine Parts

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 Parts of Drilling Machine:

Drill Machine

There are the main parts of drilling machine has given below:

1. Base
2. Column
3. Table
4. Arm
5. Drill head
6. Spindle speed and Feed mechanism.


Base:


The base is that part of the machine on which the vertical column is mounted. The base is made of casting. A base supports the column and worktable with other attachments.
The top of the base is round column section type upright drilling machined and has T-slots on it so that large workpieces and work holding devices may be set up and bolted to it. The base of the machine could also be mounted on a bench or on the ground.

Column:

The Column is the vertical member of the machine which supports the table and the head containing all the driving mechanism. It is a cylindrical casting mounted vertically at one end of the base and supports the radial arm, which slides up and down.
An electric motor at the top of the column helps in the vertical adjustment of the arm by rotating a screw passing through a nut attached to the arm.

Table:

The table is mounted on the column and is given T-slots for clamping the work directly on its face. A table is round or rectangular in shape.


Arm:

It is mounted on the column and extends horizontally over the bottom. It has guideways on which drill head slides. The radial arm moves around the column.


Drill head:

It is mounted on the redial arm and drives the drill spindle. In a number of the drill machines, the drill head could also be adjusted up or down for accommodating different heights of the add addition to the table adjustment.
It encloses all the mechanism for driving the drill at a different speed and feeds. In lighter machines, the driving motor is mounted at the rear end of the head counterbalancing the weight of the drill spindle.


Spindle speed and feed mechanism:

The motor at the top of the drill head drives the horizontal spindle and the motion is transmitted to the drill head through a group of bevel gears. With another group of gears, different spindle speed and feed are obtained.
The main advantage of this type of drilling machine is that holes of variable sizes at any point and at any angles can be drilled on the large-sized workpiece without moving the workpiece.



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