| 引用本文: | 罗怡,王东辉,王晓东,张涛,王密信,严卫.多零件轴孔精密过盈装配[J].哈尔滨工业大学学报,2013,45(2):111.DOI:10.11918/j.issn.0367-6234.2013.02.020 |
| LUO Yi,WANG Donghui,WANG Xiaodong,ZHANG Tao,WANG Mixin,YAN Wei.Multi-peg-hole precision assembly based on interference fit[J].Journal of Harbin Institute of Technology,2013,45(2):111.DOI:10.11918/j.issn.0367-6234.2013.02.020 |
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| 摘要: |
| 为了实现多圆环零件的高精度轴孔过盈配合装配,研制了基于力传感器、光栅尺和工业内窥镜的精密装配及检测系统．设计了柔顺夹持机构,克服了被装配零件与模具装配孔之间的径向定位偏差所引起装配卡阻,提出了装配力/刚度位置补偿方法,在被装配零件外径有10 μm制造公差的情况下实现了精确定位．对狭小无照明空间内零件的在线检测,应用内窥镜解耦视觉检测方法,通过控制内窥镜移动的光栅尺的位置信息和采集到的图像信息获得被装配环片的精确位置信息．装配和检测实验表明:圆环零件装配的误差在-9.4~6.1 μm之间,内窥镜检测的不确定度在-1.7～8.2 μm之间．所研制的系统能够满足圆环类零件的精密装配及检测要求． |
| 关键词: 轴孔过盈装配 内窥镜检测 精密装配 装配力/刚度位置补偿 柔顺夹持 |
| DOI：10.11918/j.issn.0367-6234.2013.02.020 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(51075058). |
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| Multi-peg-hole precision assembly based on interference fit |
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LUO Yi1, WANG Donghui2, WANG Xiaodong1, ZHANG Tao1, WANG Mixin1, YAN Wei2
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(1. Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, 116024 Dalian, Liaoning, China; 2. Xi’an Aviation Automatic Control Institute, Aviation Industry Corporation of China, 710065 Xi’an, China)
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| Abstract: |
| A precise assembly and measurement system was developed and fabricated for multi-peg-holes assemble based on interference fit, in which a compliant gripping mechanism was designed to avoid the assembly jam, the force/stiffness position compensation was proposed to eliminate the fabrication tolerance deflection of 10 μm, and the ring components were precisely positioned in the assembly mold. Borescope decouple vision measurement was proposed to measure the position of assembled components in narrow and dark environment. The position information of assembled components was measured combining the information of captured image and grating rule which assembled on the linear guide driving the borescope. The experimental results show that using the developed system, the position errors of assembly were from -9.4 to 6.1 μm and the measurement errors were from -1.7 to 8.2 μm, it could meet the requirement of the precise assembly and measurement. |
| Key words: peg-hole interference fitting assembly borescope measurement precision assembly force/stiffness position compensation compliant gripping
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