Monday, January 5, 2015

Introduction To Lathe

Lathe Machine

  • machine tool which spins a block of material to perform various operations such as cutting, sanding , knurling, drilling or deformation with tools that are applied to the work piece to create an object which has symmetry about an axis or rotation.
  • usually lathe is used in wood turning, metal working, metal spinning and glass working.
  • lathe also can be used to shape pottery and lathe is the best known design being the potter's wheel.
  • Bed is mainly support the whole machine
  • Carriage is assembly that moves the tool post and cutting tool along the ways
  • Carriage Hand wheel is a wheel with a handle used to move the carriage by hand by means of a rack and ponion drive
  • A chuck is a clamping device for holding work in the lathe
  • Apron is the front part of the carriage assembly on which carriage hand wheel is mounted
  • Cross slide is a platform that moves perpendicular to the lathe axis under control of the cross slide hand wheel
  • Cross slide hand wheel is a wheel with handle used to move the cross slide in and out.
  • Halfnut lever is the lever to engage the carriage with leadscrew to move the carriage under power
  • lead screw is a precision screw that runs the length of the bed. it is used to drive the carriage under power for turning and thread cutting operations.
  • swing is a dimension representing the largest diameter work piece that a lathe can rotate
  • tailstock is a cast iron assembly that can be slide along the ways and be locked in place. used to hold long work in place or mount a drill chuck for drilling into end of the work
  • Ram is a piston type shaft that can be moved in and out of the tailstock by turning the tailstock hand wheel.
  • Tool is a cutting tool used to remove metal from the work piece and usually made of high speed steel or carbide.
  • ways is a precision ground surfaces along top of the bed on which saddle rides. the ways are precisely aligned with the centerline of the lathe


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