We can often see some applications of drilling machines or milling machines in the machining process. In most cases, milling machines belong to the main processing machine, while drilling machines are called auxiliary equipment. Both milling machines and drilling machines are processing machines, so what is the difference between them?
The biggest difference between a milling machine and a drilling machine is the difference in functions: a milling machine is a machine tool that can perform milling, drilling, and boring processing on various plane and curved workpieces with high precision; a drilling machine has a simple structure and lower machining precision, it can machine through holes and blind holes only on the flat surface but with higher production efficiency.
1. Drilling machine
Drilling machine usually uses the rotation of the drill bit as the main movement, and the axial movement of the drill bit is the feed movement. The drilling machine has a simple structure and relatively low machining accuracy. It can drill through holes and blind holes, replace special tools, and can expand, countersink, ream or tap. The workpiece does not move during machining, the tool is moved, the center of the tool is aligned with the center of the hole, and the tool is rotated (main motion). The feature of the drilling machine is that the workpiece is fixed and the tool rotates.
2. Milling machine
The milling machine is usually the main movement of the milling cutter is the rotation movement, and the movement of the workpiece and the milling cutter is the feed movement. It can process planes, grooves, and various curved surfaces, gears, etc. A milling machine is a machine tool that uses a milling cutter to mill a workpiece. In addition to milling planes, grooves, gear teeth, threads and spline shafts, milling machines can also process more complex profiles, with higher efficiency than planers, and are widely used in machinery manufacturing and repair departments. A milling machine is a versatile machine tool that can process planes (horizontal, vertical), grooves (keyways, T-slots, dovetails, etc.), toothed parts (gears, spline shafts, sprockets), Helical surfaces (threads, helical grooves) and various curved surfaces. In addition, it can also be used to process the surface of the revolving body, the inner hole and the cutting work.