First, the difference between a milling machine and a planer
Milling machine: a machine tool that uses a milling cutter to mill a workpiece. In addition to milling planes, grooves, gear teeth, threads and splined shafts, milling machines can also process more complex profiles. When the milling machine is working, the workpiece is mounted on the table or on the accessories such as the indexing head. The rotation of the milling cutter is the main movement, supplemented by the feed movement of the table or the milling head, and the workpiece can obtain the required machining surface. Due to the multi-blade interrupted cutting, milling machines have high productivity and are widely used in machinery manufacturing and repair departments.
Planer: A linear motion machine that uses a planer to plan a flat, groove, or formed surface of a workpiece. The reciprocating linear motion is performed by the tool or the workpiece, and the intermittent feed motion is performed by the workpiece and the tool perpendicular to the main motion. Using planer processing, the tool is simpler, but the productivity is low (except for processing long and narrow planes), so it is mainly used for single-piece, small batch production and machine repair workshops, and is often replaced by milling machines in mass production. According to the structure and performance, planers are mainly divided into bull-head planers, gantry planers, single-arm planers and specialized planers (such as edge planers for planing the edge of large steel plates, planing punches and planing machines for complex-shaped workpieces), etc.
The difference between a drilling machine and a milling machine
A drilling machine refers to a machine tool that mainly uses a drill to machine holes in a workpiece. Usually the rotation of the drill bit is 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. A milling machine is a machine tool that uses a milling cutter to mill a workpiece.
Three, the difference between boring machine and milling machine
The working principle and nature of boring machine and milling machine are similar. The rotation of the tool is the main motion, and the movement of the workpiece is the feed motion.
Boring machines are mostly used for machining long through holes, large diameter stepped holes, holes in different positions on large box parts, etc. Due to the high rigidity of the cutter head and boring bar of the boring machine, the straightness, cylindricity and position of the machined hole are all high.
Milling machines can also do boring, but with a smaller range and less precision. Milling machines are mostly used for processing planes, forming surfaces, grooves, etc.
The radial arm drill is a highly efficient hole machining machine, because its spindle can move quickly and arbitrarily within the machining range, while the workpiece is fixed. Therefore, it is very efficient to process holes and screw holes in different positions on large box parts.
