In recent years, high speed processed the technology obtained the widespread promotion and the application in the components processing and the mold manufacture, at the same time, high speed processed the engine bed to support on both sides the technology and the equipment to the corresponding cutting tool (for example hilt and so on) set a higher request, moreover to transient equilibrium request also extremely high, not only requested the main axle module to need the precise transient equilibrium (above the G0.4 level), moreover requested the cutting tool and the attire clamps the organization also to need the precise transient equilibrium, but the transmission torque key and the key slot were very easy to destroy the transient equilibrium, but standard 7,/24 Awl-Handle longer, was very difficult to realize the span ceaseless coordination, generally only requested front the coordination the section above 70% to contact, therefore, After the fitting surface the section can have the certain gap, this gap can cause the cutting tool radial direction to beat, affects the transient equilibrium.

In the high rotational speed, in the high eccentricity situation, two-sided clamps the hilt (HSK) to be closer with the main axle union, also has the rigidity, has obtained the tangible effect in the enhancement processing efficiency aspect.

But when the main axle rotational speed reaches 30000r/min or above, main axle, hilt, cutting tool three when revolving should have extremely high Concentric-Angle and the transient equilibrium ability, otherwise rotational speed higher, the centrifugal force is bigger, after achieved the system the critical state, will be able to cause the hilt, the cutting tool phylogeny IntenseInspires-, its result will be processes the drop in quality, cutting tool loss of life, the main shaft bearing wears seriously even damages.

The cutting tool supports on both sides the technology always take unceasingly to improve and the enhancement as a core. Because two-sided clamps the cutting tool system very difficultly to have the new breakthrough in the high speed precision work aspect, in order to enhance the cutting tool, the hilt and the main axle joint precision, used the HSK hilt and the hot attire type tool clamps the system substitution spring to clamp, the side is solid and so on the system has more and more aroused people's interest.

Thermal expansion system principle

The thermal expansion system usually all is uses the hot induction coil enable the hilt to support on both sides partially in the short time internal heating, causes the hilt inside diameter along with it expansion, this time immediately loads the tool in the hilt, when hilt cooling contraction, then entrusts with the cutting tool to support on both sides the surface even pressure, thus has the very high radial direction to clamp the strength, firmly supports on both sides the tool. Therefore, the thermal expansion system is between one kind of cutting tool and the hilt does not involve any material the hot attire type tool to clamp the method, it may solve the high speed precision work Middle-Extremely for the important balance, inspires intensity question and so on suspends the precision and clamps.

The thermal expansion system use "Inductance Heats up", its characteristic is: Through has the goal to heat up causes the cutting tool replacement to complete in several seconds; Cause the jig service life through the material choice and the suitable technique to enhance; Intensity high, Tensity-Tight the strength is huge; Easy to operate, also safe is reliable; Is suitable to the flinty alloy steel and high speed alloy steel clamping; High strength jig; Through ties and causes the machine with the fitting the application scope to be extremely widespread; The circumference beats is smaller than 0.003 mm.

Take blue LMT-BILZ the thermal expansion system as the example, this series product uses has the high energy field Induction Heats up the coil, may complete the cutting tool replacement in the short time. As a result of the electromagnetic field part characteristic, in 4s then supports on both sides the hilt the spot to heat up, the hilt inside diameter along with it expansion, is very easy to carry on the cutting tool replacement. After installs or dismounts the cutting tool, cartridge rapid cooling, therefore, thermal extremely few conduction to cartridge other spots or cutting tool handle department. With the object which heats up with the flame or the steam body compares, the hot attire type cartridge may say is at a colder condition, the entire cartridge then completely cools (water-cooling system 30s in 30s, forced-air cooling system 60s).