具非線性效應之線性滑軌輔助滑塊之創新研究與開發

Innovative Design and Development of a Nonlinear Auxiliary Sliding Block for Rolling Linear Guideways

黃偉瑄(Wei-Hsuan Huang)

指導教授 ： 黎文龍

國立臺北科技大學/機電學院/機電整合研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00543

摘要

在現今對於高科技廠房或精密機檯或儀器，振動無疑是必然要面對的問題，為了保有工具機價格競爭優勢，如何減少線軌於切削時之顫振(chattering)與提升工具機之加工精度是個重要的課題。因此，本研究之將探討永進機械所提供之工具機FV56A之線軌驅動時之振動現象，提出附加制振機構於工具機的可行性並評估其減振效益，針對線性滑軌振動特性進行改善，利用幾何尺寸，負載力，變形量作為依據設計出一具有非線性效應之減振滑塊，當線性滑軌在移動之時，利用非線性效應低剛性的部分，使線軌之精度不受加裝減振滑塊而影響精度，當靜止狀態且加工之時，利用非線性高剛性的部分提高剛性，希望目標能提高剛性100%，使線軌具有減振效果並且增加加工精度。在根據易安裝，製作成本低廉，和易加工的前提下，在眾多設計中選取最符合需求者。
在靜態剛性模擬中，施加外力，模擬觀察設計之輔助滑塊變形量，是否符合設計之非線性特性。而在頻率分析中，觀察輔助滑塊之自然頻率預估及線性模態分析。在實驗驗證方面，本研究製作此減振滑塊出來，在模擬工具機之靜態動態情況下之靜剛性變形，在和模擬之數據結果印證討論和分析。而在實驗數據上可發現到此設計之減振滑塊具有非線性的特性和提高剛性與目標值吻合，並且此設計已申請專利中。

關鍵字

線性滑軌 ； 減振 ； 非線性

並列摘要

In today's high-tech plant for questions or precision machine or instrument, vibration is undoubtedly bound to face, in order to maintain price competitiveness of machine tools, how to reduce rail line to flutter cutting the (chattering) and upgrading of the processing machine tools accuracy is an important issue. Therefore, this study will explore the vibration phenomenon line tools provided by Yongjin mechanical machine FV56A the track driving the proposed additional damping mechanism to assess the feasibility of machine tools and their damping effectiveness with vibration characteristics for the linear slide improve the use of geometry, load force, the amount of deformation as the basis for the design of a nonlinear effect of having a damping slider, when you move the slide in linear, nonlinear effects of low rigidity portion, so that the accuracy of the rail line is not affected by the installation of precision damping slider, and when the stationary state for processing, the use of nonlinear partial increase the rigidity of high rigidity, want the target to improve the rigidity of 100%, so that the rail line has a damping effect and increases machining accuracy. In accordance with easy installation, low production cost, and easy of processing of the premise, select the design that best meets the needs of many persons.
In the static rigidity simulations, external force is applied to simulate the observed deformation of the auxiliary slider design is consistent with non-linear characteristics of the design. In the frequency analysis, observation of the natural frequency estimates auxiliary slider and linear modal analysis. In the experiments, this research produced the damping slider out in the static rigidity of static deformation dynamics simulation machine under the tool in and simulated data confirms the results of the discussion and analysis. The experimental data can be found on this damping slider design with non-linear characteristics and improve the rigidity consistent with the target, and this design has applied for patents.

並列關鍵字

linear slide ； damping ； nonlinear

參考文獻

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