Slotter
The slotter or slotting machine is also a reciprocating type of machine tool similar to a shaper or a planer. It may be considered as a vertical shaper. The chief difference between a shaper and a slotter is the direction of the cutting action. The machine operates in a manner similar to the shaper, however, the tool moves vertically rather than in a horizontal direction. The job is held stationary. The slotter has a vertical ram and a hand or power operated rotary table.
Principle parts of Slotter
1. Base: It is made up of cast iron. It supports column, tables, ram, driving mechanism etc. The top of the bed carries horizontal ways along which the worktable can traverse.
2. Table: It holds the workpiece and is adjustable in longitudinal and crosswise directions. The table can be rotated about its centre.
3. Hand wheels: They are provided for rotating the table and for longitudinal and cross traverse.
4. Column is the vertical member: They are made up of cast iron and it houses the driving mechanism. The vertical front face of the column is accurately finished for providing ways along which the ram moves up and down.
5. Ram: It is provided to reciprocate vertically up and down. At its bottom, it carries the cutting tool. It is similar to the ram of a shaper but it is more massive and moves vertically, at right angle to the worktable, instead of having the horizontal motion of a shaper.
6. Cross slide: It can be moved parallel to the face of the column. The circular work table is mounted on the top of the cross slide.
Operations performed on a Slotting Machine
A slotter is a very economical machine tool when used for certain classes of work given as under
- It is used for machining vertical surfaces
- It is used angular or inclined surface
- It is used to cut slots, splines keyways for both internal and external jobs such as machining internal and external gears
- It is used for work as machining concave, circular, semi circular and convex surfaces
- It is used for shaping internal and external forms or profiles
- It is used for machining of shapes which are difficult to produce on shaper
- It is used for internal machining of blind holes
- It is used for machining dies and punches
- This is a light machine
- The tool uses here is a single-point cutting tool
- Low cost machine
- Low maintenance
- Accurate surface finish
- Machine efficiency is more
- Rigid in construction
- Skilled worker requires to operate
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