The difference between dynamic balance shank and ordinary shank

What is the difference between dynamic balance shank and ordinary shank? Why do we need dynamic balancing on the handle? Technicians from HAIMER, the manufacturer of the tool handle and dynamic balancing machine in Germany, have done experiments. By balancing the inserted tool and handle, the service life of the spindle can be doubled, the cutting amount can be increased by 10%, and the tool life can be extended by more than 10%. Machining surface quality and accuracy are improved, chatter and waste are reduced. At the same time. The test shows that. Balancing tools yield positive results at any speed (r/min) range, with high speed machines (especially those with spindle speeds greater than 8000r/min) benefiting the most from tool balancing.

Why the big difference? Because in the process of cutting tool movement, tool imbalance will cause chatter and form surface ripples. High frequency flutter can also result in poor surface finish. Imbalances can also lead to an inability to maintain tighter tolerances, leading to an increase in reject rates. On machine tools, unbalance can lead to premature spindle bearing failure, resulting in costly downtime. With a balanced handle and tool, the tool life can be extended by 50%. The tool, handle and stop knob shall be balanced as one unit. However, not all knives need to be balanced. Each tool in a process should be evaluated to determine if the application needs to adjust the tight tolerance balance. Tool speed (r/min), tool weight, tool operation, and stress applied to the spindle should be considered.

The cause of the imbalance may come from inherent factors. Including the characteristics of the shank; It can also come from random causes, such as the position of the chuck or the position of the chuck screw, or the cutting tool, or the fastening screw used on the shank of the end milling cutter. Unbalance from inherent factors is usually resolved by the shank manufacturer through design and prebalance; Random unbalance may change each time the cutting tool is changed or when the chuck is loosened and retightened. A shank with no moving parts (such as a heat-shrinkable shank), when prebalanced, is often not easy to lose its equilibrium state. The hydraulic chuck is also easy to balance and can be easily rebalanced in use.
Regardless of spindle speed and shank type, the return on investment can be quickly achieved by using a balanced shank and tool with reduced costs and smaller tolerances and other benefits.

Pingyuan Huanyu Precision Machinery Co., Ltd. was founded in 2005, is located in Longmen Economic and Technological Development Zone, Pingyuan County, Shandong Province, is a professional production of CNC tool clamping system manufacturers. The company's main products are DIN69893(HSK), DIN69871(SK), DIN2080(NT), MAS403(BT), CAT, ISO, R8 and other standard interface of high precision knife handle series high precision SDC, GSK, ER collet series and other products, product accuracy is stable, clean and beautiful appearance, Complete specifications.