This document discusses different types of lathe machines and their parts. It describes engine lathes, turret lathes, and automatic lathes. It then explains the main parts of a lathe, including the headstock, quick-change gearbox, carriage, and tailstock. The headstock houses the spindle and uses stepped pulleys or gears to control rotation. The gearbox allows for various speeds using different sized gears. The carriage moves the cutting tool along the lathe bed using the saddle, cross-slide, and apron. Speed is measured in revolutions per minute and controlled via pulleys, gears or back gears.

1. WELCOME
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2. Name & ID
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Hasan al Noman ID: 131-23-3461
Dept. of Textile Engineering
Daffodil int. University

3. Topic
Lathe machine
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4. Types of Lathes
• Engine lathe
– Not production lathe, found in school labs,
tool rooms, and job shops
• Turret lathe
– Used when many duplicate parts required
• Single- and multiple-spindle automatic
lathes
– Six or eight different operations may be
performed on many parts at the same time
• Tracer lathes
– Used where a few duplicate parts required
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5. Types of Lathes
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Engine Lathe
Tracer lathe
Turret lathe

6. Parts of the Lathe
Headstock
Quick
Change
Gearbox
Tailstock
Carriage
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7. Headstock
• Headstock spindle
• Driven by stepped
pulley or transmission
gears
• Feed reverse lever
– Reverses rotation of
feed rod and lead
screw
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8. Headstock Speed ratio
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9. Quick-Change Gearbox
• Contains number of
different-size gears
• Provides feed rod
and lead-screw with
various speeds for
turning and thread-
cutting operations
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10. Carriage
• Used to move
cutting tool along
lathe bed
• Consists of three
main parts
– Saddle
– Cross-slide
– Apron
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11. Tailstock
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12. Speed measurement
• Speeds measured in revolutions per
minute
– Changed by stepped pulleys or gear
levers
• Belt-driven lathe
– Various speeds obtained by changing flat
belt and back gear drive
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13. Stepped pulleys or gear levers
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14. Belt-driven lathe
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15. THANK YOU
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