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Shaper machine parts discussed with its uses.
in tamil
ME8451 -Manufacturing Technology 2
Base-
The base is the necessary bed or support required for all machines tools.
All other parts are mounted on and above the base.
The bed takes up the total dead weight of the machine as well as the dynamic load during machining operations.
Cross rail-
The cross rail is mounted on the front of the body frame.
The vertical movement of the cross rail permits jobs of different heights to be accommodated.
Sliding along the cross rail is a saddle which carries the work table with cross feed screw
by rotating cross feed screw the work piece table moves horizontally.
Column-
The column of the shaper is a hollow casting and is mounted on the base.
It houses the drive mechanism for the ram and the table.
Table-
The worktable of a shaper is fastened to the front of the column.
The table moves across the column on crossrails to give the feed motion to the job.
Ram
The ram carries the tool head at its front end and travels in “guideways” to give straight line reciprocating motion to the tool. A single point tool is fastened in the tool post.
The ram is either mechanically driven or hydraulically operated (direction control valve).
Every return stroke velocity is high.
Change in stroke of ram occurs at when ever the crank and rocker arm becames tangent.