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Which component of Lathe serves the following purposes?  1. Giving an outer bearing and support the circular job being turned on centers.  2. Set or adjusted for alignment or non-alignment with respect to the spindle center and carries a center called dead center for supporting one end of the work.

Which component of Lathe serves the following purposes?  1. Giving an outer bearing and support the circular job being turned on centers.  2. Set or adjusted for alignment or non-alignment with respect to the spindle center and carries a center called dead center for supporting one end of the work. Correct Answer Tail stock

Explanation:

Lathe:

  • A lathe is one of the oldest and perhaps most important tool ever developed.
  • The job to be machined is rotated and the cutting tool is moved relative to the job, so they are also called "turning machines".

Parts of the lathe:

Its major parts are-

  • Bed
  • Headstock
  • Tailstock
  • Carriage
  • Feed mechanism

Bed:

  • base or foundation of a lathe.
  • the majority of the cases it is made up of grey cast iron-nodular cast iron.
  • holds or supports all parts of the lathe.

Headstock:

  • permanently fastened to the innerways at the left end of the bed.
  • support the spindle and driving arrangements.
  • receive their power through the headstock.
  • in order to allow the long bar or work holding devices to pass through, the headstock spindle is made hollow.

Tailstock:

  • situated at the right-hand end of the bed.
  • used for supporting the right end of the job.
  • also used for holding and feeding the tools such as drills, reamers, tap etc.
  • giving an outer bearing and support the circular job being turned on centers.
  • set or adjusted for alignment or non-alignment with respect to the spindle center and carries a center called dead center for supporting one end of the work.

Carriage:

  • control and supports the cutting tool. It has 5 major parts-
    • saddle: H-shaped casting fitted over the bed and moves along the guideways.
    • cross-slide: carries the compound slide and tool post, can be moved by hand and power both.
    • compound rest: marked in degrees, used for taper turning.
    • tool-post: tool is clamped on the tool-post.
    • apron: attached to the saddle and hangs in-front of the bed, has gears, levers and clutches for moving the carriage with the lead screw for thread cutting.

Feed mechanism:

  • employed for imparting various feeds (longitudinal, cross or angular) to the cutting tool.
  • consists of feed reverse layer, tumbler reverse mechanism, change gear, feed gearbox, quick-change gear box, lead screw, feed rod, apron mechanism and half-nut mechanism.

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