Milling Spindles are important components of a variety of mechanical equipment. They are important in grinding machinery and other machines that use the principle of reciprocating motion to turn a device or part. Milling machines can either operate as stationary units or as mobile devices capable of moving about on a large amount of horizontal space. A miter saw is one example of a mowing machine that is classified as a milling machine.
Milling spindels, as the rotating spindle of a milling machine, are primarily responsible for machine turning a piece of material into a suitable shape. There are many different tool interfaces that are used to attach the spinning miter saw blade to the working machine. These different tool interface designs include, among others, the:
The first of the three major types of machine interface is known as HSK (short for Hollow Shaft Taper). This is a type of tool interface which has a cross-shaped groove on its edge, which is designed to hold the spinning blade within the groove when it is being turned. Different milling machine systems have different tool axes which are designed to hold different sized cutting edges such as, for instance, the cutting edges of the various kinds of grinders and rotary tools, as well as the cutting edges of some hand held milling instruments.
The second of the three major types of miter saw tool interface is called SK (Quick-release Taper). It is a different tool interface which has a cross-shaped groove on its edge that is designed to hold the rotating blade onto the work piece without the cross grooves of the HSK. SK tools have shorter blades that are designed to be mounted into the cross groves of the cross grooved machine interface. The SK tool interface was first used in a milling machine that made a high torque power miter saw known as a “Shaker” mill. SK tools were replaced by the new higher torque machines that used the HSK interface.
The third type of tool interface is called SKT (quick release tapes). It is a different tool interface that has a cross-shaped groove on its edge that is designed to hold the rotating blade onto the work piece without the cross grooves of the SK. SK tools have longer blades which are designed to be mounted onto the cross groves of the cross grooved machine interface. The SK tool interface was first used in a milling machine that made a high torque power miter saw called a “Shaker” mill. SK tools were replaced by the new high torque machines that used the HSK interface. The three different kinds of machine tool interfaces have different advantages and disadvantages.
The main purpose of all machine interface designs is to maintain a continuous rotation of the blades of a grinding machine. The main disadvantage is that the cutting edges of the different tools may be not sharpened at the exact same time, leading to inaccurate cutting and the formation of sharp cuts.