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題 名 | 磨床振動之研究=The Research of Grinder Vibration |
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作 者 | 周志忠; 張浮明; | 書刊名 | 修平學報 |
卷 期 | 21 2010.09[民99.09] |
頁 次 | 頁267-282 |
分類號 | 446.8954 |
關鍵詞 | 磨削加工; 振動; 頻譜分析儀; 表面粗糙度; Grinding; Vibration; Spectrum analyzer; Surface roughness; |
語 文 | 中文(Chinese) |
中文摘要 | 磨削加工受機床結構、主軸轉速、進給速度與工件材料等作用,磨床會產生振動,影響磨削加工品質,使工件表面形成顫動紋、相異波紋或瑕痴等缺點。本文使用小型鞍座平面磨床,取不同主軸轉速、切削深度與切削力為實驗參數,研究影響磨床性能之因素,並比較砂輪修整前後之加工狀態,使用頻譜分析儀與表面粗糙度儀,量測不同參數加工後之表面,分析切削力之振動、結構振動模態、空轉與切削時之振動差異,並比較工件表面振紋。由實驗中發現,馬達驅動之進給伺服系統為主要振動源,會引起定位精度不良與表面粗糙度較大等缺陷,需要從切削力、機床結構與砂輪強制振動等振動源中補償,降低振動頻率,配合機座立柱與工作檯之剛性,減小振幅差異與彎曲變形,如此可提高磨削精度,改善工件表面粗糙度及延長整台磨床機構之使用壽命。 |
英文摘要 | In grinding process, the grinder is produced the vibration by bed structure, spindle speed, feed rate and work piece material. It affects the abrasive machining quality, causes the work piece surface shortcomings to form of vibration pattern, the different ripple and corrugated, flaw. This paper uses a small saddle surface grinding machine and takes the experiment parameter of the different spindle speed, the cutting depth and the cutting force and compares the processing condition before and after of grinding wheel. Measurement influence grinder performance with different parameters and analysis of vibration use a spectrum analyzer and surface analyzer. Cutting vibration, structure vibration modal, the idle and the cutting force of the vibration difference, and compares the roughness of the work piece surface. Discovered by the experiment the main vibration source come from servo motor in feed process, will cause the bad of pointing accuracy and surface roughness. It needs from vibration sources such as cutting force, bed structure and grinding wheel forced vibration compensates, reduction the vibration frequency, rigidity of the coordinate seats on a plane column and the work table, will reduce the oscillation amplitude difference and the bending strain, so may increase the grinding precision, to improve surface roughness and the extension the life of the whole grinder institutions. |
本系統中英文摘要資訊取自各篇刊載內容。