臺灣博碩士論文加值系統

現在工具機漸以高速化發展，而高轉速內藏式主軸所引發的高熱容易產生熱變形，進而導致加工時的精度，為解決此一問題，中華民國專利號I622255提出流道鰭片的新設計，以不改變主軸主體設計只在原來的冷卻水流道中加裝了鰭片設計，既不影響動平衡而又能有效達到熱抑制的效果。其鰭片設計理念為增加冷卻液在流道之擾動使其增加在流道中形成紊流，另外複數鰭片設計能夠使冷卻液增加更多的接觸面積，可以帶走更多的熱量。
為驗證I622255專利的效能，本研究方法利用有限元素軟體(ANSYS)來模擬分析平面水流道設計的模具，觀察其結果在做模擬測試驗證其模擬分析有效理論模型，最後再對實際主軸水套進行CAE模擬分析，觀察實際主軸的降溫效果。若未來進行主軸水套流道鰭片開發，不適合直接以實驗研究的最佳化，主由是主軸造價不斐成本太高。應當先以模擬分析並建立出一套有效的理論模型，接著再進行模擬最佳化分析後，才進行實體實驗的部分。
本研究證實具鰭片的流道有相對較好的降溫效果。在平面水流道模具模擬分析上設定70℃的加熱溫度，有、無鰭片降溫效果相差3.5K。而模擬測試實驗當中有無、鰭片模具也有相差在3℃的溫度差異，模擬分析與測試有一定的有效性，因此得以建立成為主軸水套之理論參數及模型。對於主軸水套冷卻系統分析，有無、鰭片水套模擬分析結果從表面個點溫度及出水口和流體矢量圖來看，有鰭片水套設計較無鰭片水套模型能夠使表面溫度較低的範圍，從結果顯示有鰭片較無鰭片水套各點溫度都有相差7K左右的溫度差異，使建立其有效之理論模型也能知道有無鰭片水套模型之降溫差異。

Nowadays, the machine tool is gradually developing at a high speed, and the high heat caused by the high-speed built-in spindle is prone to thermal deformation, which leads to the precision during processing. To solve this problem, the Republic of China Patent No. I622255 proposes a new flow fin. Designed to not change the main shaft design, only the fin design is added to the original cooling water flow channel, which does not affect the dynamic balance and can effectively achieve the thermal suppression effect. The fin design concept is to increase the turbulence of the coolant in the flow channel to increase the turbulence in the flow channel. In addition, the multiple fin design can increase the contact area of the coolant and take more heat.
In order to verify the performance of the I622255 patent, this research method uses the finite element software (ANSYS) to simulate and analyze the mold of the planar water flow channel design, observe the results and verify the effective theoretical model of the simulation analysis by simulation test, and finally carry out the actual spindle water jacket. CAE simulation analysis to observe the cooling effect of the actual spindle. If the development of the spindle water jacket fins is carried out in the future, it is not suitable for the optimization of the experimental research directly. The main reason is that the cost of the main shaft is too high. The part of the physical experiment should be performed after the simulation analysis and the establishment of an effective theoretical model, followed by the simulation optimization analysis.
This study confirmed that the finned flow channel has a relatively good cooling effect. The heating temperature of 70 °C was set on the simulation analysis of the plane water channel mold, and the effect of cooling with or without fins was 3.5K. However, the presence or absence of the simulation test and the fin mold also have a temperature difference of 3 °C. The simulation analysis and test have certain validity, so it is possible to establish the theoretical parameters and model of the spindle water jacket. For the analysis of the spindle water jacket cooling system, the simulation results of the fin water jacket are obtained from the surface temperature and the water outlet and the fluid vector diagram. The fin water sleeve design can make the surface temperature better than the finless water jacket model. The low range shows that there is a temperature difference of about 7K between the fins and the finless water jacket at different points, so that the theoretical model can be used to know the difference between the fins and the fins

摘要....i
Abstract....ii
誌謝....iv
目錄....v
表目錄....vii
圖目錄....viii
第一章　緒論....1
1.1 研究背景....1
1.2 研究動機與目的....2
1.3 文獻回顧....3
1.4專利技術介紹....6
1.4.1 前置準備及實驗....7
1.4.2主軸水套冷卻功能實驗結果....8
1.5研究方法....9
1.6論文架構....10
第二章 基礎理論....11
2.1 熱傳遞原理....11
2.1.1 熱傳導....11
2.1.2 熱傳導方程式....11
2.2 流體力學方程式....12
2.2.1 連續方程式....12
2.2.2 流場熱對流係數....12
2.3 順序耦合分析....13
2.4 流體分析類型....13
2.4.1 Reynolds–Averaged Navier–Stoke Equations....13
2.4.2 K–ε介紹....14
2.4.3 Spalart–Allmaras介紹....15
2.5 Flunt運算法則....15
第三章 模擬分析及測試設計....17
3.1模擬測試設備....17
3.1.1電腦硬體規格....17
3.1.2商用軟體Soildworks 3D設計....17
3.1.3商用分析軟體Ansys Fluent....18
3.1.4流量計....18
3.1.5溫度測量器(BTM–4208)....19
3.1.6水循環模溫機....19
3.1.7電熱板控制箱....20
3.1.8直線型平面有無鰭片模具組....20
3.1.9主軸水套模型圖檔建立....21
3.2模擬分析參數設計....21
3.2.1材料參數設定....22
3.2.2網格劃分....22
3.2.3熱源分布....23
3.2.4流體初始條件與邊界條件設定....24
第四章 模擬分析方法及模擬實驗驗證....26
4.1 直線型平面模具有限元素分析....26
4.2 直線型平面水道實驗測試....30
4.3直線型平面水道網格最佳化....31
第五章 液冷式主軸水套CAE分析....34
5.1 主軸水套模型有限元素分析....34
5.1.1主軸水套模型材料與邊界條件設定....34
5.1.2 網格劃分....34
5.1.3 熱源分布....35
5.1.4 流體初始條件與邊界條件設定....36
5.1.5 分析結果....37
第六章 結論與未來展望....43
6.1結論....43
6.2未來展望...43
參考文獻....44
Extended Abstract....46

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