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Milling Machine Parts and their Function

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The principle parts of milling machine are given:

  • Base

The base of the machine is Grey iron casting accurately machined on its top and bottom surface and serves as a foundation member for all the other parts which rest upon it. It carries the column at its one end. In some machines, the bage is hollowed and working as a reservoir for cutting fluid.

  • Column

The column is the main supporting frame mounted vertically on the bage. The column is box shaped. Heavily ribbed inside and houses all the driving mechanisms for the spindle and table feed. The front vertical face of the column is accurately machined and is provided with dovetail guide ways of supporting knee. The top of the column is finished to hold an over-arm that extends outward at the front of the machine.

  • Knee

The knee is the rigid gray iron casting that slides up and down on the vertical way of the column face. The adjustment of height is effected by elevating screw on the base that also supports the knee. The knee houses the feed mechanism of the table, and in different controls to operate it. The top face of the knee forms slid way for the saddle to provide cross travel of the table.

  • Saddle

The saddle is placed on the top of the knee, which slides on guide ways set exactly at 90 to column face. A cross feed screw near the top of the knee engages a nut of the bottom of the saddle to move it horizontally, by hand or power, to apply cross feed. The top of the saddle is accurately machined to provide guide ways for the table.

  • Table

The table rest on ways on the saddle and travels longitudinally. The top of the table is accurately finished and T-slots are provided for clamping the work and other fixtures on it. A lead screw under the table engages a nut on the saddle to move the table horizontally by hand or power. The longitudinal travel of the table may be limited by fixing trip dogs on the side of the table. In universal machines, the table may also be swiveled horizontally. For this purpose the table is mounted on a circular bage which in its turn is mounted on the saddle. The circular bage is graduated in the degree.

  • Over hanging arm

Over hanging arm is mounted on the top of column extends beyond the column face and serve as a bearing support may be provided nearest to the cutter. More than one bearing support may be provided for the arbor.

Milling Machine

Milling Machine

Milling Machine

  • Front Brace

The front brace is an extra support that is fitted between the knee and over arm to ensure further rigidity to the arbor and the knee. The front brace is slotted to allow for adjustment of the height of the knee relative to over arm.

  • Spindle

    The spindle of the machine is locates in the upper part of the column and receive power from the motor through belts, gears and clutches and transmit it to the arbor the front end of the spindle just projects from the column face and it is provided with a tapered hole into to which various cutting tools and arbors may be inserted. The accuracy in metal machining by the cutter depends on primarily accuracy, strength and rigidity of the spindle.

  • Arbor

    An arbor is considered as an extension of the machine spindle on which cutters are securely mounted and rotated. The arbors are made with taper shanks for proper alignments with machine spindles having taper hole on their nose. The taper shank of the arbor conforms to the Morse taper or self release taper whose value is 7:24. The arbor may be supported at the farthest end from the over hanging arm or may be of cantilever type which is called stub arbor.

Milling Machine Construciton

  • Milling Machine Construciton
    Milling machine may be defined as the type of machine in which the metal is removed by causing the job to be fed against a revolving cutting tool called the milling cutter, which has one or more cutting...

Comments

Genesis bulus on February 14, 2020:

Perfect

MOSES MOPSES on November 07, 2019:

THE INFORMATION I WANTED........NOT THE ONE YOU PROVIDE BURE KABISA

PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP on July 02, 2019:

ninfendo

Kandekande on April 28, 2019:

Elaborate. Thanks

Tori on May 30, 2018:

Wooooow

PJ on September 19, 2017:

This has nothing to do with a surface grinder

lordma on July 21, 2016:

thanks bro, your work is fabulous

junaid on October 05, 2015:

Its so nice and helpfull to me

abduhussen@hotmail.com on March 23, 2015:

i like to know about milling machine

Anonymous on March 10, 2015:

thanks man

Leones on December 02, 2014:

kulang sayang.....

awais ali engineer on November 18, 2014:

Havea good website

Animesh barman on November 13, 2014:

please tell me details about milling machine

clyde on October 15, 2014:

MET of MSU-IIT

thank you i learn something and i want more.

GBU :)

noel on June 27, 2014:

kulang man oi,, pero salamat nga bulig sa akong assignment

kb second2 on January 30, 2014:

i am student of mechanical.(i am bangladeshi)

rhin on December 03, 2013:

maraming kulang.....

pero atleast mai 6 na parts and its function

i am proud to be a mechanical students (AMETS) :)

yuvaraj on November 19, 2013:

its very usefull thanks

meludy on September 24, 2013:

Kahit na po kulang sya . Be thankful nalng po , atleast the other parts are there . :) , i'm an Mechanical Tech. student .

Thanks for the help . GBU .

poor engineer on September 19, 2013:

thanks thanks. it's so helpful for my internship report

s on September 12, 2013:

Dr.Acula

yeah on September 02, 2013:

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hero on August 27, 2013:

hui ano ba 'yan parang kulang naman yong ginawa may gana pang ipinost

rightman on July 09, 2013:

what is your function?

ling on February 03, 2013:

kuwang pa jd btw guro ne ui.,.,?

JOKING on February 03, 2013:

KULANG MAN GURU NI PWD DUGANGAN???????

pakUjuan on January 06, 2013:

pak u ka juan!

lester on December 12, 2012:

kulang kau puta!!!!!!!!!!!!!!!!!!!!!

juan on December 12, 2012:

mga pilipino maners naman

pambihira ka on December 03, 2012:

kulang

h on November 24, 2012:

please give the other parts and functions of milling machine

heheheh

:)

Dean Bern on November 22, 2012:

salamat sa konting kaalaman. :))

MR. on November 14, 2012:

tnx

po..............................

xenon on November 13, 2012:

its more informative.tnx

wosenu on November 09, 2012:

i am intreasted

limor on October 05, 2012:

nice info.but need more than you hav

lyn on September 18, 2012:

tnx s info, kht ejo confused pa rn

aw on September 17, 2012:

ok lang yan

jhay ar on September 04, 2012:

kulang ung parts -.-" !!!!

DEM on July 26, 2012:

AHHHHHHHHH......... WOW NA INCOUTER Q N 2.

jm sumague on June 30, 2012:

kulang pa toh

JOSHUA SALVADOR on June 27, 2012:

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CHAVET RAMISCAL on June 27, 2012:

pogi ko tlga

CHAVET RAMISCAL MABANTOT on June 27, 2012:

AYYYYY.... NAKOW.... ICP BATA

JOSHUA SALVADOR on June 27, 2012:

PUTANG INA NYO ANG DAMI NYONG ALAM KANTUTAN NALANG OH MAS MAGANDA, BY JOSH SALVADOR

Mike Tyson on June 27, 2012:

ang pogi tlga ni CHAVITA

CHAVZ on June 27, 2012:

MAGANDA NGUNIT SANA MAY NAKALAGAY NA MGA PICTURE PARA MAS MAINTINDIHAN . VERY THANKFUL AKO AS MECHANICAL ENG'G MALAKI ANG TULONG NITA SA AMIN!

may be on June 27, 2012:

kulang mga mukha nyo

ney on June 24, 2012:

kulang nmn ung function

axil on June 20, 2012:

saun...,kulang man tawon neh oi..hahaixt,,,

joeph on May 30, 2012:

it is very good for my course

joeph on May 30, 2012:

it is very good for course

mervin on May 24, 2012:

walang nakalagay na picture sa bawat parts para malinaw..

navale sachin on May 16, 2012:

good information

pra on April 28, 2012:

good job

livinghost on April 15, 2012:

please die

Louis on March 31, 2012:

Its really good for Technologist and engineers

mhariz on March 02, 2012:

kulang

..

jejaka cinta on March 01, 2012:

its really important for those who is taking engineering courses...its helping,,

roland patatag on February 29, 2012:

kulang ng index head and its parts...

roland patatag on February 29, 2012:

walang index crank...

ali mugheri on February 29, 2012:

its helps a lot

mujahid rahujo on February 21, 2012:

that's really a niice information ...it has helped me a lot in my electrical engineering course

yaw amoh on February 09, 2012:

honestly is great info it really helped me to doing my assignment easy ...my course is Mechanical engineering practice.please wonderful sit keep it up.so other dreams will come through indeed.by this sit..May all ur heart desire come indeed...increase the peace

, on December 07, 2011:

why willl u kill us all

jay on December 01, 2011:

i am a trainee of a lathe and milling machine,and i want to know and to learn about more to machining.

joy on November 28, 2011:

thanks who behind this

w3w on November 27, 2011:

kulang assignment ko pa naman yan..

john on November 24, 2011:

honestly speaking, may kulang, how about the other parts and its functions?

raldz on November 21, 2011:

anu ba yankulang2x naman

seanus on November 06, 2011:

this is great info it really helped with an assignment that was going to be late. thanks.

seanus on November 06, 2011:

this is great info it really helped with an assignment that was going to be late. thanks.

annapurna on September 29, 2011:

I AM PARTCIPAT IN THE SEMANER CNC MILLING MACHIN

Maruf on September 27, 2011:

I am a student of mechanical.i am bangladeshi.

jabazi on September 25, 2011:

enyewe iko poa...imenisaidia kuandika report...

jmabZ on September 23, 2011:

kulang pa yan eh!!!

nel on September 13, 2011:

kulang pa

Obashi john on August 28, 2011:

Thank God for this site, and thanks also to the uploader of this information, because it has help me a lot. Thanks am greatful

Frank on August 26, 2011:

This is nice it has helped me a lot in doing my assignment.Thanks

Lawal samuel on August 02, 2011:

Its great it helps in my course Mechanical engineering practice.

mechanical 2J de chavez on June 24, 2011:

kulang ng parts eh ,.,.,.

,.,.

Tim on February 15, 2011:

I will kill you all

tae on January 17, 2011:

kulang walay table spot ug tripdog

machine parts on October 27, 2010:

You have give a lot info. I really like it.

Richmond on August 10, 2010:

yut's kulang man ni!!!!!

Richmond on August 10, 2010:

yut's kulang man ni!!!!!

ninjacraze (author) from Pakistan on January 08, 2010:

No I am from Pakistan.I like these apprenticeship type program.

50 Caliber from Arizona on January 08, 2010:

I'm a 32 year machinist with extensive machinery back ground of operations and repair.

Are you a US citizen? or just here attending school? I ask because I know of some hands on training you might qualify for. It is an apprenticeship type program