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转台校准用精密角度分度系统设计

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转台校准用精密角度分度系统设计(中文3700字,英文2500字)
摘要
分度台是为机床上的角度测量而开发的。本文所述的测量技术目前在制造工程中可用于校准角度测量。概述了每种设备的测量原理,并讨论了其功能。设计并制造了使用6点运动学概念和使用球和V形槽位置的新分度台,以使用激光干涉仪校准旋转台的角度误差。评估制造方法以制造精确的V形槽。设计和制造了一个特殊的凸轮,以便将旋转运动转换成提升和旋转运动。CNC加工中心和分度头用于制造凸轮。新的分度台的所有部件均按制造公差制造,按照图纸,方形和平行度检查,以遵守6点运动学概念。而且这些因素控制着新分度台的可重复性。在安装新的分度台之后,使用在水平和垂直方向操作的旋转工作台来评估性能。

Design of precision angular indexing system for calibration of rotary tables†
Mechatronics & Manufacturing Center, Samsung Electronics Co. LTD., Suwon-city, 443-742, Korea
Abstract
The indexing table was developed for angle measurements on machine tools. The measuring techniques, which have been reviewed in this paper, are currently available in manufacturing engineering to calibrate the angle measurement. The measuring principles of each equipment are outlined and their capabilities are also discussed. The new indexing table using 6 points kinematic concept and employing ball and vee grooves location was designed and manufactured to calibrate angle errors of rotary tables using a laser interferometer. The manufacturing method was evaluated to manufacture the accurate vee grooves. A special cam was designed and manufactured to trans-late rotation movement into lift-up and rotation movement. A CNC machining centre and indexing head were used to manufacture the cam. All parts of the new indexing table were manufactured with a manufacturing tolerance according to drawings, squareness and paral-lelism checked to obey the 6 points kinematic concept. Also these factors controlled the repeatability of the new indexing table. After installing the new indexing table, the performance was evaluated using rotary table operating in both the horizontal and vertical orienta-tions.

【本文来自56doc.com QQ:869918441】

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