Constructional Detail of Planer

A constructional detail of planer is shown in Figure 19.27. Following are the components of the planer:

Figure 19.27 Constructional Details of Planer

Bed: Bed is a cast iron structure; it is very large and heavy and supports whole structure of the machine over it.

Table: Table is made of cast iron. At its top, it carries longitudinal T-slots and holes to accommodate the clamping bolts and other devices. Under the table, chip pockets are provided for collecting and removing the chips. On its side, the table carries adjustable stops to reverse its motion at the end of each stroke. At its both ends, it carries a trough to collect the chips.

Housing or Columns: The vertical members situated on both side or single side of the planer are housing or column. Inside them they carry the different mechanisms for power transmission to the upper part of the machine, from the main drive. At their front, there are very accurately machined vertical ways along which the cross-rail slides up and down where side tool heads are used; they also slide vertically along the same guideways.

Cross-rail: It connects two housings and provides additional rigidity to the machine. It can slide up and down on the guideways provided on the column; there is provision of guideways in front side of cross-rail to move the two tool heads horizontally from one end to other end of the table.

Tool Heads: Maximum four tool heads can be fitted in a planer, two in vertical position on cross-rail and two in horizontal position on columns. All of them can be used at the same time.