Machining centers have different spindle forms, there are three commonly used, respectively, is the belt type spindle, direct knot spindle, spindle.

Processing center belt spindle

Belt spindle is widely used, small to small machining center, large to large vertical machining center and longmen machining center.Belt spindle speed is generally not more than 8000 revolution, the greater the speed of noise, but the belt spindle strength is larger, very suitable for heavy cutting, so it is widely used in large machining centers.

Machining center straight knot spindle

Direct spindle in the high speed machining center and drilling and tapping center are used more, usually can reach 12,000 RPM.Speed and cutting force into an inverse ratio function, basically the larger the speed of the cutting force is smaller, so the straight knot spindle cutting force is not as belt spindle.Belt spindle wins in more stable, processing some of the surface finish requirements of the workpiece has a great advantage.The processing center that USES direct knot type spindle basically is to be given priority to with processing small-sized part and product, do not do heavy cutting.

Machining center spindle

Spindle relative to the above two kinds of spindle is the most new spindle, this spindle speed is very high, even if it is 50000 revolution is not difficult, but also mentioned above, the greater the speed of cutting force is smaller, this spindle speed is indeed the fastest, but the cutting force is the smallest, almost can only be used for milling.Foreign spindle can be said to be the overall leading in the country, the largest speed of the spindle abroad to hundreds of thousands of also have, this installation of ultra-high speed spindle machining center is called ultra-high speed machining center.But it may not be as useful as a straight spindle.

Mechanical spindle refers to the machine tool on the workpiece or tool rotation shaft.Usually by the spindle, bearing and transmission parts (gear or belt wheel) and other components of the spindle.In the machine is mainly used to support the transmission parts such as gear, belt wheel, transfer movement and torque, such as the machine spindle;Some are used for clamping workpieces, such as mandrel.In addition to planer, broaching machine tool and other main movement for linear movement of the machine tool, most machine tools have spindle parts.

Mechanical spindle is characterized by three high and one low (namely: high speed, high precision, high efficiency, low noise).

1, high speed: mechanical spindle CNC engraving and milling machine selection of precision and high-speed matching bearing, elastic/rigid pre-tightening structure, can achieve a high speed, can make the tool to achieve the best cutting effect.

2, high speed: 7:24 taper hole for the installation of even radial runout can be guaranteed to be less than 0.005mm.Because high precision plus high precision parts manufacturing can be assured.

3, high efficiency: can use continuous micro high to change the speed, so that the cutting speed can be controlled at any time in the processing process, so as to achieve high machining efficiency.

4, low noise: balance test shows that: all reached the G1/G0.4(iso1940-1 level, the spindle in high speed operation, has the characteristics of low noise.