LATHE MACHINE
DEFINATIONIN HINDI AND URDU
lathe machine ek mechanical Device Hai Lathe machine metal, plastic, wood ya dosare machinery mawad ko matlooba kam hasil krne liye use hoti hai. is mein workpiece ek axis k gird ghoomta hai.
is me ghoomne wale workpiece ka axis aur spindle axis ek hi waqt me ghoom rahe hote hai. jis ko ek motor belt ya gear kimadad se chala rahi hoti hai.
in english
A LATHE IS A MACHINE TOOL WHICH IS USED TO ROTATE A WORK PIECE TO PERFORM VARIOUS OPERATIONS SUCH AS TURNING, FACING, KNURLING, GROOVING ETC., WITH THE HELP OF TOOLS THAT ARE APPLIED TO THE WORK PIECE
Types OF LATHE MACHINE
Types OF LATHE MACHINE
parts of lathe
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- 1. Head stock
- 2. Head stock spindle
- 3. Speed change gear lever
- 4. Feed chang gear lever
- 5. Back and farward knob
- 6. Pulley
- 7. V Belt
- 8. Gear Box
- 9. Electric Motor
- 10. On / off awitch
- 11. Carriage
- 12. Compound slide
- 13. Compound rest
- 14. cross slide
- 15. Tool post
- 16. Apron
- 17. Feed engugment lever
- 18. Cross & longitudinal knob
- 19. Half nut
- 20. Thread dial indicator
- 21. Graduation collar
- 22. Bed
- 23. Leading screw
- 24. Rack
- 25. Feed shaft
- 26. Chips tray
- 27.Coolant pump
- 28. Tail stock
- 29. Tail stock spindle
- 30. Tail stock locking lever
in mein se chand ki details neeche beyan ki gayi hai
LEG ye neeche flowr k sath connect hoti hai. jo cost iron se bani hoti hai. aur cost iron k through bnai jati hai. puri lathe machine ka weight in legs pe hota hai. is liye ye lathe machine ka boht ahm hissa hoti hai. in legs ko is tarah design kiya jata hai. k lathe machine ki vibration aur weight ko brdasht kr sake
TRAY ye chips ko store krti hai. chips kaya hoti hai ? lathe machine pe hum jo b kam krte hai. turning, facing, drilling waghaira. is kam k duran job me se jo b material utrata (remove) hota hai. use chips kahte hai. aur ye chips neeche legs k uper lagi tray me girte hai. is tarah ye tray chips ko store b krti hai. aur Bikharne se b bachati hai.
BED ye b cost iron ka bna hota hai. aur ise b cost iron k through hi bnaya jata hai.is k oper different assembly nasab hoti hoti hai. feed bar, feed rod, lead screw
HEAD STOCK is k under gear lage hote hai. jin ko different tarteeb se different function operate krwane k liye lgaya jata hai. is k ilawa is k oper motor ko on off krne k kiye button lga hota hai.
SPINDLE ye head stock wale hissa me lga hota hai. spindle under se hollow ( khali ) hota hai. is k oper thread katte hote hai. is thread k oper chuck ko tite (fit) kiya jata hai. yani ye kaha ja skta hai. k spindle ek bolt ka kam krti hai. aur chuck ek bolt ka. jnmb in dono ko ek dusare k sath tite kiya jata hai. to ye ek assembly bn jati hai.
CHUCK chuck job ko clamp krne liye use kiya jata hai. ye chuck 2 tarah k hote hai. i) 3 jaws chuck ii) 4 jaws chuck 3 jaws chuck ko hum universal jaws chuck b kahte hai. q k jb hum ek jaws ko harkat krwate hai. to ye 3 jaws ek sath harkt krne lg jate hai. ye gol type k job ko hold krne liye use hote hai.. jab k 2nd type k chuck se hum square, rectangular job ko clamp kr skte hai. is ka hr ek jaws alg alg move krta hai. in dono me ye farq clear hai
TAIL STOCK ye chuck k opposite yani right hand ki janib lga hota hai. ye b cost iron ka bana hota hai. ye moveable hota hai. jo chuck ki taraf chalta hai. kam k mutabiq is ko age peeche kiya ja skta hai. jb lathe machine pr ek long shaft ya rod ko clamp kiya jata hai. to 2nd side se tail stock ise sport krta hai. is k sath dead center laga hota hai. jise hand wheel ki madad se age peeche kiya ja skta hai. aur dead center ko khas limit tk le ja kr lock b kiya ja skta hai. jise ram clamp kahte hai.
PULLY ye head stock k sath ka hissa hai. jo gear ko chlati hai. ise main drive pully b kahte hai. jo belt k zriye motor se connect hoti hai.
CARRAIGE is k 5 hisse hote hai.
i) apron
ii) cross slide
iii) compound slide
iv) tool post
v) saddle
is k oper ek hand wheel lga hota hai. jo carriage ko age peeche move krta hai. is wheel k sath kek lever kga hota hai. jis k use se carriage ko auto feed di ja skti hai. is slide k kiye gae proces ko turning kaha jata gai.
CROSS SLIDE ye carriage k oper lgi hoti hai. jis ko hand wheel ki madad se ise age peeche harkt di jati hai.slide se kiye gae process ko facing kaha jata hai. Manuel b aur auto b
COMPOUND REST ye cros slide k oper lgi hoti hai. ye tool ko suport ka kam krti hai. is ko kisi b degree b ghumaya ja sakta hai. jab taper turning krna ho. to is slide ka use kia jata hai.
TOOL POST ye compound slide k oper lagi hoti hai. is k ander hum tools ko hold kr skte hai.
APRON carriage ka wo hissa jaha wheel aur auto lever lga hota hai. is front wale hissa ko apron kaha jata hai
Lathe machine Tools
Lathe Machine Tools ki iqsaam (types) aur un ka use
1. Tip Tools Inko Kisi b Shank Pr Breeze kiya Ja sakta hai.
2. Bit Tools grinde kr k shape Bnai Jati hai Bareek works k liye use Hote Hai
3. Solid Tools In ki shape b Grinde Kr k Bnai Jati hai. Internal aur Enternal works k Liye use Hote hai
Shape aur Size K Lehaz Se
i) V shape Tools
ii) Square shape Tools
iii) L. H side Tools
iv) R. H side Tools
v) Boring Tools
vi) Parting Tools
vii) Knife Edge Tools
viii) Rediaus Tools
Lathe Machine operation
1. Turning
2. Facing
3. Parting
4. Drilling
5. Reaming
6. Boring
7. Knurling
8. Grooving
9. Threading
10. Forming
11. Chamfering
12. Filling and Polishing
13. Taper Turning
>>Turning
ye ek Aisa work hai Jis mein hum Kisi gol workpiece ka Dia Km krte hai. Zrurt K mutabiq ya final size Hasil Krne K Liye. Is opration K doran Tool Workpiece k oper chlta hai. Jo K Machine K Axis K Paralell Hota hai. is waja se workpiece ka Dia pori lambai me ek jaisa rehta hai.
>>Facing
aisa opration jis mein kisi workpiece k end se yani akhir wale hisse se material kata jaye. ya us k face ko seeda kiya jaye. use facing kahte hai. is amal k doran workpiece ki lenth km ki jati hai.
>>Boring
pahle se kiye gaye hole ko khula karne ka amal Boring kehlata hai. ye opration 2 method se kiya jata hai.
1) Drill
2) Boring tool
>>Threading
Lathe machine pr thread cutting krne liye thread pitch aur thread number ki setting head stock pr lage chart se ki jati hai
.
>>Taper cutting
ye lathe machine ka aisa amal hai. jis me workpiece ki turning ki jati hai. yani jb Dia (qutr) km kiya jata hai. to ek cone ki shape bn jati hai. ye shape workpiece k dono side pe bnai ja skti hai.
Cutting Speed
Machine shop k kisi b amal me cutting speed ko hamesha fee minute / meter fee minute beyan kiya jata hai. Lathe Machine pr kam krte waqt worpiece 1 minute mein jitni bar cutting karne wale tool ki noke se takraye ga. wo daira (circle) is ki raftar ho gi. Tool ka job ki satah pr akai waqt mein teh krda fasla Cutting speed kehlata hai. cutting speed meter/minute mein hoti hai.
cutting speed maloom krne ka farmoola.
cs= Dia × Π × rpm / 1000
RPM maloom krne ka farmoola
cs × 1000 / Π × Dia
METEL . CUTTING SPEED
1)Cost iron 14-17 mpm
2)Mild steel 18-24 mpm
3)Alloy steel upto 60 tons tensile 14-17mpm
4)Alloy steel 80. to 60. tons tensile 12. T0 10. mpm
5)Alloy steel over 80 tons tensile 04-08 mpm
6)Tool steel 10-12 mpm
7)Bross 61-122 mpm
8)Bronze 24-25 mpm
9)Hard Brass 30-42 mpm
10)Copper 46-92 mpm
11)Aluminium 92-150 mpm mpm means meter/minute
Cutting Material Coolents
Lathe Machine per operation k doran use kiye jane wale cutting oil
Ye bat yad rahe k cutting oil job meterial ki sakhti narmi aur is ki properties dekh kar use kiye jate hai
Hard Steel Cutting Oil
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