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Japan Seiko develops ball screws for high-speed precision machining machine tools

by：Gewinn 2022-05-06

Seiko has developed the 'HMS series' of ball screws for machine tools. Mainly suitable for machine tools that perform high-speed machining, it is said to help reduce machine noise and vibration. Sales will begin in April 2011, with a sales target of 1 billion yen in 2013. The new product is a small pitch (movement per revolution, lead) type, and is mainly used for machine tools such as molds that place importance on precision. In recent years, such high-speed precision machining machines have been increasingly required to be quiet and low-vibration based on considerations such as improving the working environment. Nippon Seiko adopts the 'SRC circulation method' mechanism that can smoothly circulate the balls, under the condition that the noise and vibration are controlled within the allowable range, the maximum dn value [shaft diameter d (mm) × rotation speed n (min-1)] It reached 160,000, which is about 20% higher than the original 'tube circulation method'. As a result, the maximum feed rate reached 48m/min (when the shaft diameter is 40mm and the thread pitch is 12mm). In addition, the use of SRC cycle method also reduces the noise by a maximum of 6dB (A), and the vibration is also reduced to about half of the original.

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