CAJ | 학술논문

为了便于调整大型龙门数控加工中心 Z 轴滑枕滑鞍的间隙，设计出一种基于液压致变形原理的间隙补偿装置。该装置通过调整其密封腔内的压力，使装置表面产生微变形，进而补偿滑枕滑鞍的间隙。理论分析了间隙补偿器的补偿特性，并依据机床的现有结构尺寸，研制不同材料和结构参数的间隙补偿器。理论分析和试验结果表明：间隙补偿器的变形量与密封腔内压力有显著的线性关系，线性度优秀，无明显回滞；间隙补偿器的位移特性曲线与材料、圆形薄壁结构尺寸相关；理论计算结果符合试验结果。
위료편우조정대형룡문수공가공중심 Z 축활침활안적간극，설계출일충기우액압치변형원리적간극보상장치。해장치통과조정기밀봉강내적압력，사장치표면산생미변형，진이보상활침활안적간극。이론분석료간극보상기적보상특성，병의거궤상적현유결구척촌，연제불동재료화결구삼수적간극보상기。이론분석화시험결과표명：간극보상기적변형량여밀봉강내압력유현저적선성관계，선성도우수，무명현회체；간극보상기적위이특성곡선여재료、원형박벽결구척촌상관；이론계산결과부합시험결과。
This paper proposed one solution using elastic deformation of thin-plate actuated by hy-draulic pressure in order to compensate the gap between ram and saddle of gantry type milling ma-chine Z axis which might lead to bad stability and consistency during machining.Compensators with different materials or dimensions were designed according to one certain CNC machine.Performance of these compensators was researched both in theory and experiments,the outcome of which shows a linear correlation between deformation and pressure as well as negligible hysteresis for each specific compensator while varies among ones with different materials or dimensions.