February 25, 2013

Lathe Machine

lathe machine in machine manufacturing workshop banner

A lathe is a powered mechanical device in which the work is held and rotated against a suitable cutting tool for producing cylindrical forms in the metal, wood or any other suitable machinable material.


Principle of working


principle of working of lathe machine in machine manufacturing workshop

The principle of lathe machine is that it holds the work between two strong supports called as centers  or in a check or face plate which revolves. The chuck or the center is mounted on the main spindle of the machine. The cutting tool is rigidly supported in a tool port and it is fed against the rotating job. The job rotates in its axis and the tool is moved either parallel or to an inclination with its axis as such a cylindrical or tapered surface is produced.


Types of lathe

There are various types of lathe. They are as follows:
a. Precision lathe
b. Tool room lathe
c. Capstan and turret lathe
d. Automatic lathe
e. Speed lathe
f. Engine lathe
g. Bench lathe
h. Special purpose lathe



The principle parts of lathe are discussed:


parts of lathe machine in machine manufacturing workshop having bed, head stock, tail stock, spindle, carriage, legs


Bed: 

The bed is the function of the lathe. It is supported on board box columns and is made of cast iron. It consist of two heavy metal slides running lengthwise with ways. Units which are mounted on the bed are the head-stock, the tail-stock and the carriage. Lathe bed is made of high grade special cast iron having high vibration damping qualities. It is secured rigidly over cabinet leg and leg. In its use care should be taken to avoid formation of scratches, nicks and dents by falling tools. It should be lubricated regularly.

Gap beds: 
Some beds have a gap just adjacent to the front of the head stock. It is gap beds. This type of bed can accommodate jobs which are bigger in diameter, but it is true for jobs of shorter length only.



Head stock: 

It supports the main spindle in the bearings and aligns it properly. It also houses necessary transmission mechanism with speed changing levers to obtain different speeds. Cone pulleys or gears could be used to change the speed of spindle. Holding devices which are mounted on head-stock spindle:


various head stocks chucks (three jaw chuck, four jaw chuck, face plate, collet chuck, magnetic shuck, lathe dog) in machine manufacturing workshop

a. Three jaw chuck
b. Four jaw chuck
c. Face plate
d. Collet chuck
e. Magnetic chuck
f. Lathe dog



Main spindle: 

It is a hollow cylindrical shaft and long cylindrical jobs can pass through the main spindle. The spin end facing the tail-stock is called the spindle nose. The spindle nose has a mores taper hole (self locking taper) and threads on outside. The mores taper is used to accommodate center or collet chuck or threaded portion of chuck.



Tail-stock: 

It is a movable part located opposite to head-stock on the ways of the bed. It is capable of sliding along the bed maintaining its alignment with head-stock. On medium size and smaller lathe it is moved along the bed manually, whereas in heavier lathes it is moved by hand wheel through a pinion that meshes with rack provided in front of lathe bed. It is used for four purposes:
a. To support free end during machining.
b. To hold tool for performing operations like drilling, reaming, tapping etc.
c. To center the job and the tool before any lathe operations.
d. To help in the operation of taper turning by tail stock set over method.



Carriage: 

It is located between head-stock and tail-stock. It can slide along bed guide ways and be locked at any position by tightening the carriage lock screws. It consist of following five main parts


a. APRON: 

It is fastened to saddle. It contains gears and clutches for transmitting motions from feed rod and hand wheel to the carriage. Also split nut which engages with the lead screws during threading. The clutch mechanism is used for transmitting motion from feed rod whereas the split nut along with the lead screw moves the carriage during thread cutting.


b. SADDLE: 

It is made up of H-shaped casting. It aids saddle to slide on bed guide ways by operating hand wheel. 


c. COMPOUND REST: 

It supports the tool post and cutting tool in its various positions. It may be swiveled on the cross-slide to any angle in the horizontal plane.


d. CROSS-SLIDE: 

It is provided with a female dovetail one side and assembled on top of saddle having a male dovetail.


e. TOOL POST: 

It is used to hold various tool holders and tools. Three types of tool post commonly used are:
Ring and rocker tool post
Square head tool post
Quick change tool post



Legs: 

They are supports which carry entire load of the machine. Legs are casted and it is placed on the floor of the shop of foundation by grouting. The left leg acts as a housing for the motor, the pulleys and the counter shaft at the same time the right leg acts as a housing or the coolant tank, pump and the connecting pipes.




SPECIFICATION OF LATHE

The size of the lathe is specified by one of the following ways:
a. Length of the bed (Bed length will include head-stock)
b. Distance between centers (Maximum job length that can be held between centers)
c. Diameter of the work which can be turned between the ways (Maximum diameter that can be rotated)
d. Heights of centers
e. Swing over carriage


specification of lathe like its length, height, width, distance, diameter, swing over carriage in lathe machine workshop





OPERATIONS PERFORMED ON LATHE MACHINE


1. Facing
2. Rough Turning
3. Shouldering
4. Radius Turning
5. Necking
6. Taper turning
7. Thread cutting
8. Forming
9. Chamfering
10. Knurling
11. Drilling
12. Boring
13. Counter sinking
14. Counter boring

operations (facing, turning, shouldering, necking, cutting, forming, chamfering, knurling, drilling, boring, counter sinking) with the help of lathe machine



DIFFERENT METHODS OF TAPER TURNING

Compound rest method: 


compound rest method in taper turning attachment in lathe machine workshop

Compound rest method is used for turning steeps and short tapers. It is having a circular base graduated in degree. When taper of required degrees is turned, the base of compound rest is swiveled through an angle equal to half of the taper angle.





Tapper turning attachment: 

taper turning attachment in lathe machine workshop
It is bolted on the back of the lathe and has a guide bar which may be set at the desired angle of taper. As the carriage moves along the bed length, a slide over the bar causes the tool to move in and out according to the setting of the bar. Lathe center remains aligned and same taper can be given on various jobs.




Form tool method: 




When the length of the taper is very short it can be turned by a bored nosed tool consisting of cutting edge half the taper angle. While using this type of tool lot of chattering is there, as such this type of tool is used specially when the machine have a very rigid base.

39 comments:

  1. I am found many companies of machine on internet world so thanks for share great information of your business and we are also leading machinery company in the world...



    Lathe Machine In Ludhiana

    Wood Working Machine In Ludhiana

    Power, Hydraulic Press Machine In Ludhiana

    Chain Mortising Machine In Ludhiana

    Welding Set In Ludhiana

    Drill Machine In Ludhiana

    ReplyDelete
  2. Broach India - Techcellence is a leading manufacturer and exporter of broach, broaching machines and optimum quality industrial spline gauges in India.

    round broaches















    ReplyDelete
  3. A group of highly dedicated and experienced employees form a dynamic team, The manufacture of Gear Cutting Tools, Broaches and Allied Products.

    Gear Chamfering Cutters


























    ReplyDelete
  4. Dedicated Impex is leading gear cutting tools Manufacturers Company in India, we are manufacturers and suppliers of gear cutting tools, CNC router bits, keyway broaches, router bits and slotting cutters in all over India.

    Threading Taps



















    ReplyDelete
  5. nice information for this lathe machine please added some type of cnc lathe machine if you know coding cnc lathe machine then added cnc coding and upload other mechanical machine information
    mechanical!

    ReplyDelete
  6. Thank You for share great information about lathe machine also check best lathe machine manufacturer of Rajkot machine

    ReplyDelete
  7. Great post. I was once checking constantly this weblog and I'm impressed! Extremely useful information specially the closing part. I maintain such information much. I was once seeking this specific information for a very long time. Many thanks and best of luck.


    Fabrication equipment

    ReplyDelete
  8. This is a blog to watch for sure. I think you have a really awesome writing style by the way. Very easy to read. Your blog design is so clean too! Thank you all the hard work!

    hydraulic service and repair

    ReplyDelete
  9. H-Frame shop press

    American made hydraulic shop presses available in 20 ton, 40 ton, 50 ton, 100 ton and 150 ton models with manual, air or electric pump

    to get more - https://tuckerhydraulics.com

    ReplyDelete
  10. Thank You For Sharing This Important Information With Us, Quite Helpful Content Regarding Machine Tools. I Would Like To Add That Bore Finishing Is A Very Crucial Process In Manufacturing Of Auto Components, Hydraulics Valves And Accessories, Aerospace Components, Defense Equipment Etc. Day By Day Bore Accuracy And Surface Finish Required Is Becoming More Precise. Single Pass Honing Process, As The Name Indicates, Is Just Passing The Honing Tool Once In The Bore. Khushbu Engineers Manufactures Single Pass Honing Machines In India. Established In 1994, Khushbu Honing Machines Are Extensively Used By The Leading Names Of Industries Like Godrej, MICO, Indo MIM, Eaton, Preciforge and Gears, Bajaj Motors. CNC Honing Machine Manufacturer

    ReplyDelete
  11. Wow!
    Excellent Post. We also manufacturing different type of machines. For more details click here
    http://www.italiaautomations.com/
    https://italiaautomations.blogspot.com

    ReplyDelete
  12. Such a nice writing. The style you have narrated is simple beautiful and well authored. The quality of writing can be seen from the beginning until the end.
    hydraulic services , hydraulic service and repair

    ReplyDelete
  13. Thank you for sharing this useful information, I will regularly follow your blog.Excellent post, thanks for sharing, it’s indeed very helpful for new blogger like me

    Aluminum Machining

    ReplyDelete
  14. I was searching about these tools and finally found your blog amazing list thanks admin.
    Easeus data recovery

    ReplyDelete
  15. Very nice information of product,
    Labultimaprocess - we will offer high quality lab spray dryer machine& freeze dryer machine at an affordable price range. mini spary dryer, laboratory Spray dryer, food freeze dryer machine

    ReplyDelete



  16. This is really nice article. I like this article ... nice job admin
    can hair removal cream be used on private parts

    ReplyDelete
  17. Thanks for shareing this kind of informative article. If you want to make passive income, You can check this out
    Earn $1000 In a Week

    ReplyDelete
  18. I?m not that much of a internet reader to be honest but your blogs really
    nice, keep it up! I’ll go ahead and bookmark your site to come back in the future.
    Cheers.
    IDM
    Easeus Data Recovery
    Windows 7 activator
    4k video downloader
    Microsoft office 365
    Windows 10 activator
    xforce keygen

    ReplyDelete
  19. This is the perfect blog for anyone who is looking for topics like this. It has got it all, information, benefits, and overview. A perfect piece of writing. Good job.
    Industrial Equipment Supplier in Dubai

    ReplyDelete
  20. Measuring News is only news portal for measuring and machine tools industries.

    ReplyDelete
  21. I’m impressed with your blog. It's an interesting post. I will definitely share this kind of informative post with my friends. It's a valuable post for everyone. I hope you post again soon. Thank you so much for the useful info. I recommend you the best machine tools in dubai

    ReplyDelete
  22. Prosper Machine Tool Announce Reseller Support Agreement With API – API Metrology Press Release The inventor of the Laser Tracker is partnering with the full-service machine tool distributor to offer diverse metrology hardware and services in Texas. Dimensional Metrology pioneer and inventor of the Laser Tracker, API Metrology has announced their partnership with Prosper Machine Tool, a family-owned machine tool distributor, to provide premium metrology services.

    ReplyDelete

  23. Rod-wire drawing machine is basically considered the very first phase of all the manufacturing unit. It plays a very important role in the manufacturing process of wire, strands, and conductors of all types.
    Rod Break Down Machine Manufacturer

    ReplyDelete
  24. Nice post! This is a very nice blog that I will definitively come back to more times this year! Thanks for informative post.상주출장아로마
    안동출장아로마
    영천출장아로마
    영주출장아로마

    ReplyDelete
  25. Fiquei lisonjeado com a sua visita e comentário, Adriana! Meu tempo anda limitado com a ocupação do trabalho, excluindo um pouco a atenção com os amigos, gosto muito do seu blog com matérias incentivadoras e educativas.Nossa amizade é eterna!!!Beijos!!!장수노블홈타이
    임실노블홈타이
    순창노블홈타이
    고창노블홈타이
    부안노블홈타이
    의령노블홈타이
    함안노블홈타이
    창녕노블홈타이

    ReplyDelete
  26. Amazing Article! Thanks for sharing a helpful & interesting article about Lathe Machines, including their working principle, types, Main spindle, specification, operations & methods. I found this article very useful, which is helpful to increase high productivity and durability. I am waiting for more articles, keep sharing.

    ReplyDelete
  27. This is a great post, with such a good source of information related to the Lathe Machine. Thanks for posting it. Surelia Industries is known as, valued, and respected for manufacturing, supplying, and retailing Lathe Machine.

    ReplyDelete
  28. Thank you for such an insightful and thought-provoking post! Your ability to delve into specific topic like this enhance such clarity and depth truly resonates with me. I particularly appreciated your emphasis on this topic, which shed new light on the subject for me. Keep up the excellent work and I eagerly anticipate reading more from your blog in the future! Although, Don't forget to explore my blogs also:

    Maximizing-Growth-Potential-Value-of-Business-Advisory-Services


    /The-Strategic-Benefits-of-Business/b>

    ReplyDelete
  29. This article provides a clear and concise overview of the main parts of a lathe machine. Understanding these components is essential for anyone wishing to effectively operate or maintain a lathe. Thanks for breaking it down in such an accessible way! and Leader Machine Tools is a prominent manufacturer and exporter of various machines like lathe machines, bandsaw machines, and more. And dont forget to explore our website:

    Lathe Machine In Punjab
    Lathe Machine In Rajkot
    Lathe Machine In Gujarat
    Lathe Machine In Batala

    ReplyDelete
  30. Hello Blogger's Network,

    I stumbled upon this blog while researching something else, and I must say, I'm impressed! Your insightful analysis on this topic really caught my attention. It's clear that you have a deep understanding of the subject matter, and your writing style makes it both informative and engaging.

    Keep up the excellent work! I'll definitely be checking back for more updates. For anyone interested in Commercial Property Maintenance, Property Maintenance Company and Commercial Kitchen Vinyl Flooring Contact us Now!

    ReplyDelete
  31. https://kriimpasindia.com//Kriimpas India Pvt. Ltd>..Welcome to Kriimpas India Pvt. Ltd., where we offer comprehensive solutions for all your material processing needs. Since 2012, we have been dedicated to providing top-notch machinery and services to our valued customers.Contact

    ReplyDelete