实现二维精密调整的双偏心机构理论及试验

给出一种用于特殊结构要求下进行精密的二维调整的双偏心机构的结构和工作原理,建立了精确的数学模型,并用仿真模型对理论模型进行了仿真和相关分析,同时对实际机构进行了相关的试验.分析研究表明,该双偏心二维精密调整机构的工作原理及数学模型是正确的,在一定加工精度和控制精度的条件下,其调整误差能满足使用的要求;实验数据初步分析表明圆度误差、偏心量误差是调整误差的主要来源.

Theory and Testing Research on Realizing Two-dimension Precision Adjustment with Double Eccentric Mechanism

This paper introduces the structure and operating principle of double eccentric mechanism used in a special environment to realize the two-dimension precision adjustment, establishes its precise mathematic model, analyzes the theory model with simulation model, and researches it by test. All of which indicate that the operating principle and mathematic model of double eccentric two-dimension precision adjustment mechanism are right. Under the condition of some processing and control accuracy, the adjusting error can satisfy the requirement. Through analyzing on the test data, it shows the circular degree and eccentric errors are the main sources of adjusting errors.