Under the demand for high-torque cutting, what is the path to improve the power transmission efficiency of the mechanical powered tool holder?
Publish Time: 2024-12-16
In the field of metal processing, facing increasingly complex workpieces with strict requirements on precision and efficiency, high-torque cutting has become the norm, and the mechanical powered tool holder is the key connecting component between the tool and the machine tool power source, and its power transmission efficiency is directly related to the processing results.
Optimizing the transmission structure is the primary path. Traditional gear transmission is prone to problems such as tooth surface wear and increased meshing clearance under high torque, resulting in power loss. The use of new spiral bevel gears or hypoid gears can evenly disperse torque, reduce impact and energy loss, and ensure that power is transmitted from the machine tool spindle to the tool almost losslessly with a greater overlap and a more reasonable tooth surface contact form. At the same time, the introduction of high-precision planetary gear mechanisms, using multiple planetary gears to share the load together, achieves high torque amplification in a compact space, just like a group of "power assistants" working together, allowing the tool holder to instantly obtain strong cutting power.
The selection of high-performance connectors cannot be ignored. The quality of the coupling between the tool holder and the spindle has a huge impact. Under high torque conditions, the elastic elements of the elastic coupling are prone to deformation and fatigue, while the rigid coupling needs to strictly control the coaxiality. The metal diaphragm coupling is used. Its ultra-thin stainless steel diaphragm can accurately transmit torque and compensate for minor installation deviations. It can also maintain extremely low hysteresis deformation during high torque torsion. It is like a sensitive and efficient "power link", which accurately transmits every bit of power of the spindle to avoid efficiency loss caused by "drag" of the connection link.
Lubrication management is an invisible "synergist". Under the continuous action of high torque, the friction heat generated by the transmission parts increases sharply, and the inferior lubricant quickly fails, aggravating wear and hindering transmission. Suitable for high-viscosity, extreme-pressure and anti-wear special grease, its special additives form a strong lubricating film under high pressure, separating the meshing tooth surfaces, bearing balls and raceways, reducing the friction coefficient by more than 50%, ensuring smooth operation of components, and reducing the conversion of internal power consumption into useless heat energy, so that the tool holder is always in a "full power" state, with a continuous cutting force, which helps to efficiently process large-size, high-strength metal materials and greatly improve production efficiency and economic benefits.
