The widespread application of ball screws in the machine tool industry has driven the rapid development of the machining machine tool industry. However, the limitations of mechanical transmission make it impossible to cope with the increasing trend of high-speed and efficient cutting. The linear motor type is a high-speed and efficient transmission method that has emerged under the demand of this trend, especially in the development of high-speed transmission of machine tools, which has reached a new level. As a pioneer of advanced machine tools in the world, Germany began the research and development of high-speed milling and turning technology in the 

當(dāng)進給速度為20m/min時，其輪廓精度可達0.004mm。美國的Ingersoll公司緊接著推出了HVM-800型高速加工，大進給速度達到75.20m/m i n。

When the feed speed is 20m/min, the contour accuracy can reach 0.004mm. Ingersoll Company in the United States immediately launched the HVM-800 high-speed machining center, with a large feed speed of 75.20m/min.

1996年開始，日本相繼研制成功采用直線電動機的臥式加工、高速機床、超高速小型加工、超精密鏡面加工機床、高速成形機床等。從此以后，直線電動機在高速數(shù)控機床的應(yīng)用如雨后春筍般地迅速發(fā)展起來。近十年來，世界上各工業(yè)發(fā)達紛紛投入巨資，大力研究、開發(fā)成功不少直線電動機驅(qū)動的高速數(shù)控機床，并逐漸有搶占傳統(tǒng)滾珠絲杠市場的態(tài)勢。

Since 1996, Japan has successively developed horizontal machining centers using linear motors, high-speed machine tools, ultra high-speed small machining centers, ultra precision mirror machining machines, high-speed forming machines, etc. From then on, the application of linear motors in high-speed CNC machine tools has rapidly developed like mushrooms after rain. In the past decade, various industrialized countries around the world have invested heavily in researching and developing many high-speed CNC machine tools driven by linear motors, and gradually have a trend of seizing the traditional ball screw market.

直線電動機加工在國外的寶馬、通用等汽車公司已經(jīng)有成熟的應(yīng)用，在國內(nèi)上汽通用、東風(fēng)雪鐵龍、昌河鈴木、海馬汽車等也有整線的應(yīng)用實例。本文從技術(shù)分析和應(yīng)用實例上進行了直線電動機和滾珠絲杠驅(qū)動加工的對比。圖1為Comau Urane25直線電動機高速加工。

The linear motor machining center has mature applications in famous automobile companies such as BMW and General Motors abroad, and has also been applied in whole lines in China, such as SAIC General Motors, Dongfeng Citroen, Changhe Suzuki, and Haima Motors. This article compares the linear motor and ball screw driven machining centers through technical analysis and application examples. Figure 1 shows the Comau Urane25 linear motor high-speed machining center.