Lathe Machines

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Lathe Machines
Types of Lathes

• Center Lathe
• Engine Lathe
• Bench Lathe
• Capstan Turret Lathes
• Automatic Lathes
• Multi Spindle Lathes
• Vertical Turret Lathes
• CNC Lathes

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Kinematic Scheme of Lathe Machine
Speed Gear Box Headstock
Tool Post
Saddle
Chuck
Tail Stock
Feed rod
Feed Gear Box
Lathe Bed
Lead Screw
Half Nut
Apron
Carriage
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Lathe Machine Pulley driven (Light Duty)
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Lathe All Geared High Speed Precision
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Lathe All geared (X- Y Movements)
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The machining operations generally carried out in
centre lathes are Facing Centering
Rough and finish turning Chamfering,
shouldering, grooving, recessing etc Axial
drilling and reaming by holding the cutting tool
in the tailstock barrel Taper turning by
offsetting the tailstock swivelling the
compound slide using form tool with taper over
short length using taper turning attachment if
available combining longitudinal feed and cross
feed, if feasible. Boring (internal turning)
straight and taper Forming external and
internal Cutting helical threads external and
internal Parting off Knurling
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A Turret Locking Handle, B Turret, C -
Capstan Slide, E - Capstan Slide Block,
D - Capstan Rest, F - Sliding Bridge
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• The capstan lathe, having a relatively short
  stroke of the tool head and automatic indexing,
  results in a rapid presentation of the tools to
  the work.
• The turret lathe, on the other hand, is suitable
  for long and heavy work, the larger size of
  machines having a capacity for bar work up to 200
  mm diameter X 1500 mm long or for chuck work up
  to 750 mm diameter. Capstan lathes are limited to
  a maximum of 300 mm diameter chuck works.
• It is clear that turret lathes are larger, in
  size as compared to capstan lathes. Unlike
  capstans, the turret and dead stops on turret
  lathes have to be indexed into position by hand.
• Capstan and turret lathes give quite effectively
  the normal accuracy required for interchangeable
  mass production. The dimensional accuracy may be
  within 0.002 mm for turning and boring and within
  0.005 mm for reaming.

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A Headstock, B Spindle, C - Pilot Bar, D
Tool post, E - Rear Tool post, F - Cross slide, G
- Intermediate saddle, H Turret, I - Turret
Clamp Lever, J - Saddle Looking Lever, K - Star
Handle for Turret Operation, L - Turret Apron, M
- Turret saddle, N - Intermediate saddle Apron, O
- Feed Gearbox
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Mini Turret Lathe
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Mini Capstan Lathe
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Mini Capstan Lathe Specs

• Max. Collet Cap (Round) mm 25 32 32 42
• Spindle Bore dia mm 32 38 40
  50
• No. Range of Speeds RPM 3/ 650 to 1600, 3/ 650
  to 1600
• 4/560 to 1600, 4/560 to 1600
• Length of Bed mm 980 980 1210 1210
• Max. Dist. Between Spindle -to Turret Face mm
  275 275 400 400
• Effective Travel of Capstan Slide mm 95 95
  130 130
• Power Required HP 2 2 2 3

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Vertical Turret Lathe CNC 16 dia
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Vertical Turret Lathe 88 Dia Table (2 Turret
heads)
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Vertical Turret Lathe CNC 46 dia
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Multi Spindle Lathe 6 Spindles
Shimada Machinery Co. Ltd, www.smd.co.jp
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• The 6-Spindle Automatic Lathe uses one spindle
  for loading and unloading.
• The other five spindles are used for turning

• The Multi-Spindle Automatic Lathe moves work
  pieces between 6 or 8 stations (processing
  locations), with processes such as boring,
  turning, chamfering, screw cutting, grooving, and
  drilling conducted at separate stations.

• Pos1 loading/unloading requires the most time.
  This longest position time becomes the cycle time
  when using a 6 or 8 spindle automatic lathe

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