Before we begin to take apart the drilling machines and their types, let’s take a closer look at the construction of this equipment.
A drilling machine consists of:
The drilling head. It contains the spindle headstock of the machine, which is started by an electric motor through a belt drive. In the spindle headstock there is a chuck for fastening the tooling. Also in this part of the machine there are control elements (start/stop button, regulators, feed levers).
Rack pillar. The column performs a supporting function in machines and connects the drilling head with the base.
Base frame. The supporting part of the machine. It can be attached to the workbench in table-top models or can be well balanced due to its heavy weight. Under the massive production models, a platform can be additionally installed, so that the machine stood on a flat surface and less vibration during operation.
This modification of drilling machines is not universal. Depending on the specifics, they can be equipped with a rotary head, several spindles or have a horizontal arrangement of the main units.
The design of most varieties of drilling machines allows moving the working part up and down relative to the workpiece. This creates the possibility of adjusting the depth of cut.
