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滑片式壓縮機汽缸型線設計與數控加工

Geometry Design and NC Machining for Cylinder Profile of Sliding Vane Type Compressor

作者:邱仁宏
畢業學校:正修科技大學
出版單位:正修科技大學
核准日期:2010-02-23
類型:Electronic Thesis or Dissertation
權限:Copyright information available at source archive--CSU University....

中文摘要

本論文針對雙工作腔滑片式旋轉壓縮機之汽缸型線設計進行研究。滑片式壓縮機的泵部分,主要機件為汽缸、轉子和滑片。因汽缸型線決定滑片運動特性(包含位移、速度、加速度及急跳度)。因此,根據滑片運動的限制條件,來決定合乎運動要求的汽缸型線,是設計旋轉壓縮機中相當重要的一環。
一般而言,設計汽缸型線必須先根據設計要求,來決定汽缸型線的限制條件,其次在依這些條件的特性選擇適當運動曲線加以組合。本文配合所設計的運動曲線,運用嚙合理論來推導出汽缸型線。
所建立的汽缸型線,透過幾何資料轉換,輸入CAM軟體中,以產生切削路徑。切削路徑選擇以圓弧插補輸出,而不是以直線插補輸出,可避免加工後,汽缸表面會有不連續面產生,導致壓縮機運轉時的噪音、振動與洩漏。所產生的刀具路徑經實體切削模擬加工確認後,經由後處理程式轉成NC碼,經由三軸數控工具機進行加工驗證。
藉由本研究之方法與技術,探討汽缸型線的設計與製造方法,以提升滑片式旋轉壓縮機的設計能力,並減少開發時程。

英文摘要

This paper study of this essay is the design for cylinder profile of two chamber sliding vane type compressor. The main part of sliding vane type compressor are stator, rotor and vane. Because cylinder profile decides the characters of motion vane, including displacement, speed, acceleration and jerk, it is the most critical point to decide the cylinder profile that meets motion based on limitation of motion vane.
In general, on designing cylinder profile, we have to decide the limitation of cylinder profile based on the design request. Second, according to these characters of limitations to choose and assemble proper motion curve. In this essay, we use well-designed motion curve and meshing to infer cylinder profile.
Then we put the inferred cylinder profile into CAM software to get tool path. We choose to output the tool path by circular interpolator, not by line interpolator to prevent from non-continuous surface after production that will cause noise, vibration and to leak out. After checking the simulate production, the postprocessor into NC code and then enter into the 3-axis machining to produce by digital operation.
Based on the method and technique, we study the design of cylinder profile and the process way to raise the ability of designing sliding vane type compressor to shorten the development.

 

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