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  • 學位論文

線上匹配式曲線誤差補償系統與整線自動化之研究

Study of in-process matching error compensation for curve-type mating for a precision machining process

指導教授 : 陳夏宗 王世明
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摘要


由於工業4.0的到來與物聯網的發展,使得在產線上提高精度與高效率的生產模式顯得更加可行。而其首先必須將生產資訊透明化,且能夠在機器間快速自動傳遞相關資訊,可即時掌控產線上的異常資訊並做及時的製程控到修正並提升加工精度與生產效率。將現經用到加工精度提升上時,則需可即時回傳加工製程匹配誤差,並做即時的補償,就達到智能誤差補償效果。針對曲線加工路徑進行研究,透過系統可從關鍵量測參數設定到誤差匹配補償都能線上有效完成,設計上也搭配自動化功能,可節省傳統匹配製程中的人力與時間,達到低成本快速量產的效果。具體研發整合(1)針對組裝匹配及製程匹配兩種模式建立線上匹配誤差計算及補償法;(2)透過線上自動檢測及加工程式自動修正方法作到線上快速加工誤差修正功能,使生產可依照匹配誤差及時生產出正確的匹配組裝件;(3)根據(1)(2)建立具備友善人機介面的電腦輔助誤差補償系統;(4)實機驗證,證明所建立的方法與系統的準確性及實用性。最後再經由實驗驗證可以得知: 本系統可依照量測件的誤差同時進行加工件的尺寸與幾何誤差的調整,在初次補償時尺寸誤差為0.377mm可以縮小到0.053mm以內,可提升85%,初次角度誤差為0.93∘修正後縮小至0.118∘以內,可提升87%,而再次進行複合式製程匹配初始誤差為0.183mm修正後縮小至0.028mm,誤差補償率更提升至82%。

並列摘要


Due to the arrival of Industry 4.0 and the development of the Internet of Things, it is more feasible to improve the precision and high efficiency of production mode on the production line. First of all, it must transparently produce production information, and can quickly and automatically transfer relevant information between machines, which can instantly control abnormal information on the production line and make timely process control to correct and improve processing precision and production efficiency. When the machining accuracy is increased, it is necessary to immediately return the machining process matching error and perform immediate compensation to achieve the intelligent error compensation effect. Research on the curve processing path, through the system can be effectively completed from the key measurement parameter setting to the error matching compensation, and the design is also equipped with automation function, which can save manpower and time in the traditional matching process, and achieve low-cost and fast mass production. Effect. Specific research and development integration(1) Establishing online matching error calculation and compensation method for the two methods of assembly matching set process matching; (2) Through the online automatic detection and automatic correction method of the processing program to make the online fast processing error correction function, so that the production can produce the correct matching assembly in time according to the matching error; (3) according to(1)(2) Establish a computer-aided error compensation system with a friendly human-machine interface.; (4) Real machine verification, proving the accuracy and practicability of the established method and system. Finally, it can be known through experimental verification: The system can simultaneously adjust the size and geometric error of the workpiece according to the error of the measuring component. In the initial compensation, the dimensional error is 0.377mm, which can be reduced to less than 0.053mm. The initial angle error is 0.93∘, and the correction is reduced to 0.118∘. However, the initial error of the composite process matching is 0.183mm, which is reduced to 0.028mm, and the error compensation rate is increased to 82%.

參考文獻


參考文獻
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[3] V. S. B. Kiridena and P. M. Ferreira, “Kinematic Modellng of Quasistatic Errors of Three-Axis Machining Centers”,Int. J. Mach. Tools Manufact, vol.34, pp.85-100,1994.
[4] P.D.Lin, K.F. Ehmann, "Direct Volumetric Error Evaluation for Multi-Axis Machines", Int J. Mach.Tools Manufact, Vol.33 No.3 pp.675-693, 1993.

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