紡織用併條機上蓋三維無縫彎管成形 之最佳參數研究

The Research of Drawing Frame for Textile Machine Top Cover Three-Dimensional Seamless Steel Tube Bending Parameters Optimization

陳玉純(Yu-Chun Chen)

指導教授 ： 林瑞璋

共同指導教授 ： 王永成

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2011年)

https://doi.org/10.6827/NFU.2011.00153

摘要

紡織用併條機的入料彎管內壁需平順才能使後續併條情形能順利進行，並要能與機具做裝配，故需依實際上下接點位置做三維管路之設計。如上蓋三維彎管直接由CNC彎管成型，其有比較平滑表面與節省開發模具成本之優點。但彎曲加工之半徑與行程卻需經由經驗判斷及試誤法成型，而造成人力與原料的浪費。一般影響管件成形之原因包含管件外徑、厚度、材質與彎曲半徑，本文針對一紡織用併條機的上蓋三維無縫彎管做彎曲行程之參數做研究。
本研究根據田口實驗法，依照彎曲行程建立L18直交表，再使用CAE軟體ABAQUS進行有限元素分析其彎曲行為，並探討其應力應變結果以及成形情形，進而得到最佳之行程參數。依照最佳行程參數執行三維彎管加工，將加工之彎管使用應變規進行量測實驗，比對有限元素法之最佳化數據結果誤差量在7%左右，判斷結果趨勢相近，將可達到減少試彎次數、人力、原料浪費。

關鍵字

三維彎管成形 ； 田口實驗法 ； CAE ； 有限元素法

並列摘要

Textile and the machine's feed pipe wall to be smooth in order to make follow-up and smooth running of the case, and to be able to do with the equipment assembly, it is required to do by actually three-dimensional position of the next junction piping design. Such as three-dimensional cover directly from the CNC Tube bending shape, its smooth surface and a relatively cost-saving advantages of developing mold. However, the bending radius and the itinerary has to be through experience and trial and error method to determine the shape, resulting in waste of manpower and raw materials. Generally affect the shape of the tube causes include pipe diameter, thickness, material and bend radius, textile and paper for a cover of the machine to do three-dimensional seamless pipe bending journey of parameters to do research.
This study is based Taguchi method, in accordance with bending journey to establish L18 orthogonal array, then use the CAE software ABAQUS finite element analysis of the bending behavior, and to explore the stress-strain results and forming the case, then get the best travel parameters. Perform three-dimensional parameters in accordance with the best travel bending processing, processing of the bends will be measured using strain gauge experiments, finite element method than the optimal amount of data error results in about 7%, similar trends to determine the results will be achieved try to reduce the number of bends, manpower, raw material waste.

並列關鍵字

pipe forming ； Taguchi method ； CAE ； finite element method

參考文獻

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