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精密导軌的质量問題是精密机械和仪器仪表行业所共同关注的,而对导軌的檢驗,目前还有异議。本文就这个問題加以探討。按零件的运动軌迹,可将导軌分成两类:(1)直綫运动导軌——保証零件的各点作直綫运动;(2)轉旋运动导軌——保証零件的各点作旋轉运动。导軌质量的指标为:方向精度、运动的灵敏性和平稳性、对温度变化的敏感性、載荷、耐磨性和成本等。本文专門討論直綫运动导軌的方向精度問題。
The quality of precision guide rail is precision machinery and instrumentation industry common concern, and rail test, there are still objections. This article explores this issue. According to the parts of the track, the rails can be divided into two categories: (1) linear motion guide - to ensure that the parts of the linear motion for the point; (2) rotary motion guide - to ensure that the components of the rotating motion . Rail quality indicators are: direction accuracy, motion sensitivity and stability, sensitivity to temperature changes, load, wear resistance and cost. This article devoted to discussing the direction accuracy of the linear guide.