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美国Giddings ＆ Lewis公司耗时6年研制成功的VARIAX加工中心,以其独具新颖的结构,优良的性能,被称为是本世纪以来机床设计的最大突破.VARIAX加工中心采用聚合运动原理.其结构的最大特点是采用最强的三角形构架结构取代了传统的床身、立柱等支撑部件,可以伸缩的6条“腿”支撑并连接上平台(装有主轴头)与下平台(装有工作台).每条“腿”均由各自的伺服电机与滚珠丝杠驱动,伸缩这6条“腿”就可使装有主轴头的上平台进行6坐标轴的运动,从而改变主轴与工件的相对空间位置.满足加工中刀具运动轨迹的要求.一般机床中由于结构几何造成的误差在VARIAX中并不存在.它利用数学对正的虚拟轴来使自己与工件对正,因此也被称为“虚轴机床”(Virtual axis machine).
The 6-year-old VARIAX machining center developed by Giddings & Lewis in the United States is known for its unique structure and excellent performance, and is the biggest breakthrough in machine tool design since the turn of the century .VARIAX machining center adopts the principle of aggregate motion. The most prominent feature of the structure is the use of the strongest triangular structure to replace the traditional bed, column and other support components, telescopic 6 “legs” support and connect the platform (equipped with spindle head) and the lower platform (equipped with work Taiwan). Each “leg” by their respective servo motor and ball screw drive, stretching the six “legs” can be installed with the spindle head on the platform 6 axis movement, thereby changing the spindle and the workpiece Relative spatial position Meet tool path requirements in machining In general, errors due to structural geometry in machine tools do not exist in VARIAX. It uses math to align a positive virtual axis with a workpiece and is therefore also referred to as “Virtual axis machine”.