Difference between milling machine and planer and boring machine

The difference between a milling machine and a planer.

Milling machine: It 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. Planer: A linear motion machine tool that uses a planer to plan a flat, groove, or formed surface of a workpiece. 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 bull head planer is named after the ram and the tool holder are shaped like bull heads. The planer is mounted on the tool holder of the ram for longitudinal reciprocating motion, and is mostly used for cutting various planes and grooves. The gantry planer is named after a gantry frame structure composed of a top beam and a column. The worktable carries the workpiece through the gantry frame for linear reciprocating motion, and is mostly used for processing large planes (especially long and narrow planes). To machine grooves or planes of several small and medium parts at the same time. Large gantry planers are often attached with components such as milling heads and grinding heads, so that the workpiece can be planed, milled and ground after one installation. The single-arm planer has a single column and a cantilever, and the worktable reciprocates longitudinally along the bed guide rails. It is mostly used for processing workpieces with large widths that do not need to be processed on the entire width.

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. Commonly used planers are: head planer, gantry planer and single-arm planer.

The difference between boring machine and milling machine

The working principle and properties of a boring machine and a 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 to process long through holes, large-diameter stepped holes, and holes in different positions on large box parts. 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 perform boring, but the machining range is smaller and the accuracy is lower. Milling machines are mostly used for processing planes, forming surfaces, grooves, etc.

The radial drill is a highly efficient hole processing machine, because its spindle can move quickly and arbitrarily within the processing range, while the workpiece is fixed. Therefore, it is very efficient to process holes and screw holes in different positions on large box parts.