The ram reciprocates on the column guideways and carries the tool head with a single-point cutting tool.In heavier type shaper the table clamped with table support to make it more rigid.In a universal shaper, the table may be swiveled on a horizontal axis and the upper part of the table may be fitted up or down.The table can be swiveled at any required angle.T-bolts are used for clamping on top and sides.The table is bolted to the saddle and receives crosswise and vertical movements from saddle cross rail.The horizontal movement is given to the table by moving the saddle using the crossfeed screw.The vertical movement is given to the table by raising or lowering the cross rail using the elevating screw.Cross rail is mounted on the front vertical surface of the column on which saddle is mounted.The column acts as a cover to the drive mechanism and also supports the reciprocating ram and the worktable.two accurately machined guideways are provided on the top of the column on which the ram reciprocates.This is made of cast iron, which is a box-like and is mounted on the base.It is so designed that is can take up the entire load of the machine and the forces set up by cutting tool over the work.The base is hollow casting made of cast iron to resist vibration and on which all parts of the shaper are mounted.The base is the necessary bed or support required for all machines tools.The arrangement of the shaper machine is made as shown in the figure. Read also: Shaper machine operations the complete guide The work is fed at right angles to the direction of the ram in small increments, at the end of the return stroke. The shaper process can be defined as a process for removing metal from the surface in horizontal, vertical and angular planes by the use of a single-point cutting tool held in a ram that reciprocates the tool in a linear direction across the workpiece held on the table of the machine. You might like: Different Types of Cutting Tools & Their Uses Shaper Machine Process If you haven’t read about the shaper machine mechanism you can read it from here. This can be achieved by a mechanism called a quick return mechanism. Therefore in order to reduce the total machine time, It allows the ram holding the tool should move slower during forwarding cutting stroke and it comes faster in return stroke. In the shaper machine, the rotary motion of the drive is converted into the reciprocating motion of the ram holding the tool. During the return stroke, No metal is cutting. The shaper holds the single-point cutting tool in ram, and the workpiece is fixed in the table.ĭuring the forward stroke, the ram is holding the tool is reciprocating over the workpiece to cut into the required shape. The shaper machine is a reciprocating type of machine used for producing horizontal, vertical or flat surfaces.
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