叶片砂带磨削机构的设计与实现

The design and implementation of blade abrasive belt grinding mechanism

首先,根据叶片技术要求,选取合适磨削方式、砂带与工件的接触形式以及砂带磨削的走刀方式。其次,根据被磨削叶片的材质和结构形状,选择合理的磨削工艺参数,以达到理想的磨削效果。最后,针对汽轮机叶片的复杂特性,设计了一个砂带磨削机构。该机构的加工精度高,加工后的叶片表面粗糙度可达0.8μm。解决了以汽轮机叶片为代表的复杂曲面磨削抛光的技术难题,提高了叶片型面的几何精度和表面质量。

First of all,according to the blades' technical requirements,the appropriate grinding method,the contact form of belt and work piece,and the tool path pattern of abrasive belt grinding were selected.Secondly,according to the material and structural shape of the blades,the reasonable grinding process parameters were selected to achieve the ideal grinding effect.Finally,according to the complex characteristics of the turbine blade,an abrasive belt grinding mechanism was designed.It has a high machining accuracy,which the roughness of processed blade surface can reach 0.8 μm.It solves the grinding and polishing problems of complex surface,and the geometric accuracy and surface quality of the blades was improved.