Parts of Milling Machine

Hello friends, Today we are going to discuss about milling machine in which we will know all aspects related to milling machine like parts of milling machine

1. Hello friends, Today we are going to discuss about milling machine in which we
will know all aspects related to milling machine like parts of milling machine.

The most commonly used machine after lathe machine is the milling machine.

It is also a type of manufacturing machine like drilling machine, shaper machine,
planer machine,etc.

Basically milling machine is used for making a flat surface, slots, splines, keyways,
sprockets and gears through using different types of milling cutters.

Splines, slots and keyways can also be made by slotting machine which I have
already discussed.

What is Milling?

Milling is a method in which the material is cut by feeding the workpiece under a
rotating multiple tooth cutter and produces machined surface which may be flat,
angular or curved.

The cutting action of teeth on milling cutters can be quickly machined.

Parts of Milling Machine

The main parts of milling machine are following

Base

Column

Knee

Saddle

Work Table

Spindle

2. Overarm

Arbor

Brace

Milling Cutter


Base

It is made up of gray cast iron whose top and bottom surfaces are machined in
precision and it acts as a foundation member for all other parts of the machine.


Column

A column is the vertical member that is cast with the base.

In these parts of milling machine has an all driving mechanisms for spindle and
table feeds.

Its front vertical face is machined in precision and the top of the column is
finished to hold the over arm.


Knee

It is a strong casting of gray cast iron that slides up and down on the vertical
wedge of the column.

It consists of table feed mechanism and various controls.

A knee is used to support saddles, work tables and workpiece clamping devices.

Saddle

3. The top of the knee is fitted with a saddle, which slides on the face of
the column on the guideways set at exactly 90°.

The top of the saddle is machined in precision to provide guideways for the table.

Work Table

Work table is the most important parts of milling machine on which the
workpiece or a job hold tightly and performs many operation.

The top of the table is finished in precision and 'T' slots are made to clamp
the work and other fixtures.

Spindle

Spindle is located at the top of the column and rotates
through receives power from belts, gears and clutches and transmits it to
the arbor.

Overarm

It is mounted at the top of the column and rises in front of the column face.

It is commonly used to support arbor and spindle.

Arbor

It is the extension parts of spindles on which milling cutters are held or rotated.

Brace

Brace is an additional support that is fitted between the knee and the
over arm to ensure greater strength for the arm and knee.

Milling Cutter

4. It is the very most important parts of milling machine because
though milling cutters different types of milling operation performed.

It is a multipoint cutting tool in a milling machine.