Milling Machine Parts and their Function

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.

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Comments 90 comments

50 Caliber profile image

50 Caliber 6 years ago from Arizona

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


ninjacraze profile image

ninjacraze 6 years ago from Pakistan Author

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


Richmond 6 years ago

yut's kulang man ni!!!!!


Richmond 6 years ago

yut's kulang man ni!!!!!


machine parts 6 years ago

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


tae 5 years ago

kulang walay table spot ug tripdog


Tim 5 years ago

I will kill you all


mechanical 2J de chavez  5 years ago

kulang ng parts eh ,.,.,.

,.,.


Lawal samuel 5 years ago

Its great it helps in my course Mechanical engineering practice.


Frank 5 years ago

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


Obashi john 5 years ago

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


nel 5 years ago

kulang pa


jmabZ 5 years ago

kulang pa yan eh!!!


jabazi 5 years ago

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


Maruf 5 years ago

I am a student of mechanical.i am bangladeshi.


annapurna 5 years ago

I AM PARTCIPAT IN THE SEMANER CNC MILLING MACHIN


seanus 5 years ago

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


seanus 5 years ago

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


raldz 5 years ago

anu ba yankulang2x naman


john 5 years ago

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


w3w 5 years ago

kulang assignment ko pa naman yan..


joy 5 years ago

thanks who behind this


jay 5 years ago

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


5 years ago

why willl u kill us all


yaw amoh 4 years ago

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


mujahid rahujo 4 years ago

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


ali mugheri 4 years ago

its helps a lot


roland patatag 4 years ago

walang index crank...


roland patatag 4 years ago

kulang ng index head and its parts...


jejaka cinta 4 years ago

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


mhariz 4 years ago

kulang

..


Louis 4 years ago

Its really good for Technologist and engineers


livinghost 4 years ago

please die


pra 4 years ago

good job


navale sachin 4 years ago

good information


mervin 4 years ago

walang nakalagay na picture sa bawat parts para malinaw..


joeph 4 years ago

it is very good for course


joeph 4 years ago

it is very good for my course


axil 4 years ago

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


ney 4 years ago

kulang nmn ung function


may be 4 years ago

kulang mga mukha nyo


CHAVZ 4 years ago

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


Mike Tyson 4 years ago

ang pogi tlga ni CHAVITA


JOSHUA SALVADOR 4 years ago

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


CHAVET RAMISCAL MABANTOT 4 years ago

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


CHAVET RAMISCAL 4 years ago

pogi ko tlga


JOSHUA SALVADOR 4 years ago

MET 1C TECHNOLOGICAL UNIVERSITY OF THE PHIL. MGA ENGOT ITS BETTER TO USE BOOKS THAN INTERNET, WALANG KWENTA TO UMASA NALANG KAU SA NET KAYA PURO NET ANG ANG LAMAN NG MGA UTAK NYO


jm sumague 4 years ago

kulang pa toh


DEM 4 years ago

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


jhay ar 4 years ago

kulang ung parts -.-" !!!!


aw 4 years ago

ok lang yan


lyn 4 years ago

tnx s info, kht ejo confused pa rn


limor 4 years ago

nice info.but need more than you hav


wosenu 4 years ago

i am intreasted


xenon 4 years ago

its more informative.tnx


MR. 4 years ago

tnx

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


Dean Bern 4 years ago

salamat sa konting kaalaman. :))


4 years ago

please give the other parts and functions of milling machine

heheheh

:)


pambihira ka 4 years ago

kulang


juan 3 years ago

mga pilipino maners naman


lester 3 years ago

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


pakUjuan 3 years ago

pak u ka juan!


JOKING 3 years ago

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


ling 3 years ago

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


rightman 3 years ago

what is your function?


hero 3 years ago

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


yeah 3 years ago

follow me on twitter =)) @rjmonteclaro


3 years ago

Dr.Acula


poor engineer 3 years ago

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


meludy 3 years ago

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 .


yuvaraj 3 years ago

its very usefull thanks


rhin 3 years ago

maraming kulang.....

pero atleast mai 6 na parts and its function

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


kb second2 2 years ago

i am student of mechanical.(i am bangladeshi)


noel 2 years ago

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


clyde 2 years ago

MET of MSU-IIT

thank you i learn something and i want more.

GBU :)


Animesh barman 2 years ago

please tell me details about milling machine


awais ali engineer 2 years ago

Havea good website


Leones 2 years ago

kulang sayang.....


Anonymous 21 months ago

thanks man


abduhussen@hotmail.com 20 months ago

i like to know about milling machine


fajardo 17 months ago

kulang,2 man ni mn


astrologo 17 months ago

kulang kulang gd ya!!!!!!


RASTAMAN 16 months ago

YUT ITOT KULANG MAN DYAN TAE


junaid 14 months ago

Its so nice and helpfull to me


Michael Jackson 12 months ago

Ooogiewoogieoogleboogle


salma ibrahim 11 months ago

how do you copy it nne


lordma 4 months ago

thanks bro, your work is fabulous


MESINA JOMEL 3 months ago

ANG GWAPO NI PAPA P PERO MAS GWAPO AKO


EVAN 2 months ago

TY PO


hsdfsdfsd 5 weeks ago

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