本文選題：砂帶磨削 + 接觸輪　； 參考：《機(jī)械工程學(xué)報(bào)》2017年05期

【摘要】：機(jī)器人磨削系統(tǒng)能夠替代低效和高污染的手工曲面打磨作業(yè),降低生產(chǎn)準(zhǔn)備時(shí)間和設(shè)備成本,特別適用于小批量曲面零件的磨削加工。接觸輪為橡膠等柔性材質(zhì),工件與工具之間存在彈性接觸,有利于提高工件表面質(zhì)量,但接觸輪易變形,導(dǎo)致實(shí)際磨削量不易控制。研究砂帶張緊對(duì)接觸輪變形和磨削深度的影響,采用彈性力學(xué)平面問題的復(fù)變函數(shù)解法,建立模型并求解得到了接觸輪的變形分布規(guī)律,與商用有限元軟件的結(jié)果進(jìn)行對(duì)比,驗(yàn)證了解析模型的正確性。建立改進(jìn)的磨削深度預(yù)測(cè)模型,得到了接觸區(qū)域內(nèi)的磨削深度分布,試驗(yàn)驗(yàn)證了模型預(yù)測(cè)誤差小于3.1%。該方法可以更為準(zhǔn)確快速地預(yù)測(cè)機(jī)器人砂帶磨削深度,為提高復(fù)雜曲面磨削精度提供了理論指導(dǎo)。
[Abstract]:The robot grinding system can replace the low efficiency and high pollution manual surface grinding operation and reduce the production preparation time and equipment cost. It is especially suitable for the grinding of small batch curved surface parts. The contact wheel is a flexible material such as rubber, and there is elastic contact between the workpiece and the tool, which is helpful to improve the surface quality of the workpiece, but the contact wheel is easy to deform, resulting in the difficult to control the actual grinding quantity. The influence of belt tension on contact wheel deformation and grinding depth is studied. By using the complex variable function method of elastic plane problem, the model is established and the deformation distribution law of contact wheel is obtained, which is compared with the results of commercial finite element software. The correctness of the analytical model is verified. The improved grinding depth prediction model is established and the grinding depth distribution in the contact area is obtained. The experimental results show that the prediction error of the model is less than 3.1. This method can predict the grinding depth of robot belt more accurately and quickly, and provide theoretical guidance for improving the grinding accuracy of complex surface.
【作者單位】： 北京航空航天大學(xué)機(jī)械工程及自動(dòng)化學(xué)院;
【基金】：國家自然科學(xué)基金(51305008) 教育部博士點(diǎn)基金(20121102120020)資助項(xiàng)目
【分類號(hào)】：TG580.6

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