Both boring and drilling machines are hole processing machines. The main difference between them is that they use different cutting tools. Boring machine uses boring cutter to process holes, and drilling machine uses drill bit to drill holes. In detail, the drilling machine is usually used to process holes with small size and low accuracy requirements. When drilling on the drilling machine, the workpiece is generally fixed, and the tool rotates and feeds along the axial direction. The boring machine is usually used to process holes with large size and high accuracy requirements, especially for holes distributed on different surfaces, with high requirements for hole spacing and position accuracy, such as holes on various boxes, engine cylinder blocks and other parts. Generally, the rotation of boring tool is the main motion, and the movement of boring tool or workpiece is feed motion.
1. Boring machine
A machine tool that mainly uses boring cutter to bore the pre-existing holes of the workpiece. Generally, boring tool rotation is the main motion, and the movement of boring tool or workpiece is feed motion. It is mainly used for machining high-precision holes or finishing multiple holes at one time. In addition, it can also be used for machining other machining surfaces related to hole finishing.
2. Drilling machine
Drilling machine refers to the machine tool which mainly uses the drill bit to process holes on the workpiece. Generally, the rotation of the drill bit is the main motion, and the axial movement of the drill bit is the feed motion. The drilling machine has simple structure and relatively low machining accuracy. It can drill through holes and blind holes, replace special tools, expand, countersink, ream or tap.
During the machining process, the workpiece does not move and the tool moves. The tool center is aligned with the hole center and the tool is rotated (main motion). The characteristic of drilling machine is that the workpiece is fixed and the tool rotates.