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现有加工中心因主轴转速所限,使切削加工能力受到了一定的限制,于是,各种增速主轴应运而生,主要驱动方式有:气动驱动式——可获得高转速,且体积小,但扭矩不足;齿轮传动式——受力或振动时噪音很强,转速亦有限;带传动式——体积庞大且扭矩不足;高频电动式——增速效果好,但因带有激振装置,故难以适应ATC系统。 为了克服这些缺点,日本圣和精机公司和光洋精工公司合作开发了这种新型牵引驱动增速主轴,分为标准型、超高速型和高刚性型,其最高转速依次为30,000、50,000、120,000min~(-1) 。其传动原理是利用受.压的接触位置的摩擦力实施牵引(traction)。如图所示,用于连接机床主轴的输入轴上装有三个行星,行星
Due to the limitation of the spindle speed in the existing machining centers, the cutting ability has been limited. Therefore, various growth spindles emerge as the times require. The main driving modes are as follows: Pneumatic drive - high speed, small volume, But less torque; gear-driven - strong noise or vibration when the force or vibration, the speed is limited; belt drive - bulky and torque inadequate; high-frequency electric - good growth effect, but with excitation Device, it is difficult to adapt ATC system. To overcome these shortcomings, Japan’s S & G and Koyo Seiko co-developed this new traction drive spindle, divided into standard, super high speed and high rigidity type, the maximum speed of 30,000,50,000,120,000 min ~ (-1). The principle of its transmission is to use traction by pressure of the contact position of the traction (traction). As shown in the figure, three planets and planets are installed on the input shaft for connecting the machine tool spindle