Description of a Boring Machine

Definition of a Boring Machine

• Boring machines create a bore in the shortest possible time and provide the highest quality surface finishes and tolerances. A boring machine is used for precision drilling and welding and is often found in fabrication and mechanical workshops. Workers use boring machines for doweling, pile top driving, and in the concentric boring of holes in backhoes, endloaders and dozers.

Types of Boring Machine

• Line boring machines bore holes in heavy construction equipment, including cranes and endloaders. Tunnel boring machines drill through rocky terrain to create smooth tunnel walls. Cylinder boring machines rebore engine cylinders in automobiles. Finally, jig boring machines enlarge existing bore holes and increase the accuracy of their dimensions.

Other Boring Machine Types

• Other types of boring machine include the portable boring machines, which possess a pneumatic or hydraulic drive, and vertical boring machines, which are large tools equipped with a drill chuck for manual vertical drilling in tunnels or large steam engine turbine castings. Coupling boring machines bore precision couplings, and direction boring machines are equipped with a frame and drive mechanism that can be mounted to a frame and is slideable.

Features of Boring Machines

• Boring machines function in a number of ways. Tunnel boring machines are constructed from one or two shields and trailing support mechanisms. Line boring machines accurately measure bores because of internal and external micrometer measures, with diameter sizes ranging from 50 mm to 2,000 mm.