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數控車床翻譯

車床翻譯,機床翻譯,數控機床翻譯,機床安裝調試手冊翻譯
車床(機床)作為機械行業的重要組成部分，在翻譯的過程中，我司涉及車床翻譯/機床翻譯的範圍包括數控機械、機電、切割設備、機床工具等產品的生產和加工資料說明翻譯，手冊，安裝調試說明翻譯，等。隨著我國經濟的迅速發展，加上車床在整個國民經濟中佔有重要的地位。國內公司和企業在世界範圍內的貿易往來越來越頻繁，如國外機床設備的購進，國內設備的出口等，在這些國際貿易往來中，翻譯承擔著溝通的橋樑，由此對車床(機床)翻譯的需求也就日益增多起來。
　　 隨著翻譯需求的增加，客戶對翻譯服務的要求也就會相應地提高，為了滿足客戶對車床類翻譯的特殊需求，全意翻譯公司除了整合車床行業的專業翻譯資源外，在行業資訊的更新及處理上也做出了創新。因此，公司在全國範圍內積累了眾多的客戶，並以高品質的翻譯服務贏得了客戶的青睞與好評。

數控機床翻譯

1 引言
1 Foreword
機床的床身是整個機床的支承件，一般用來放置導軌、主軸箱等重要部件[1]。為了滿足數控機床高速度、高精度、高生產率、高可靠性和高自動化程度的要求，與普通機床相比，數控機床應有更高的靜、動剛度，更好的抗振性[2]。由於床身結構形狀較複雜,採用一般方法對其進行靜、動態特性計算比較困難[3]。隨著有限元理論的成熟和電腦技術的發展，目前通常利用三維軟體建模再導入有限元軟體ANSYS中進行靜動態特性分析[4]，但是這樣容易造成資料的丟失，需要耗費大量時間進行模型的修復。而利用PTC公司的Pro/MECHANICA模組可以直接對Pro/ENGINEER模型進行結構分析的事實卻鮮為人知。本文首先對某數控機床的床身進行設計並利用Pro/ENGINEER建模，然後運用Pro/MECHANICA對其進行有限元分析，結果表明：有限元分析等手段可以進行最優化的設計，避免結構存在先天上的缺陷和不足。
As a supporting member for the entire lathe, a lathe-bed is generally used for placing such important components as lead rail and headstock [1]. In order to meet the high requirements of computer numerical control (CNC) for speed, accuracy, productivity, reliability and automation degree. Compared with the ordinary lathes, CNC lathes are superior in static and dynamic stiffness and vibration resistance [2]. Due to the bed’s great complexity with regard to structural shape, it will be very difficult to carry out calculations for its static/dynamic characteristics by means of common methods [3]. With the gradual maturity of theory of finite element and the development of computer techniques, the currently universally employed method is to perform a static/dynamic characteristic analysis by making three dimensional software for modeling and introducing finite element software ANSYS [4]. But this method is easy to lead in data loss and therefore needs plenty of time for model repairing. It is rarely known by people that the Pro/MECHANICA module of company PTC can realize the said structural analysis for Pro/ENGINEE model. In this paper, design is first conducted for the bed of a CNC lathe and Pro/ENGINEER is employed for modeling, then Pro/MECHANICA is used for finite element analysis. It is shown by the result that measures like finite element analysis can be employed for optimization design, thereby avoiding the inherent structural defects and disadvantages.
2床身的部分結構及其尺寸的確定
2 Confirmation of partial structure and dimensions of lathe-bed
2.1 床身的形體結構及尺寸
2.1 Structure and dimensions of lathe-bed
床身按佈局方式的不同分有正置床身、斜置床身、正置床身斜滑板和立式床身，選擇正置床身有工藝性好、加工方便、易於保證刀具運動精度和承受工件重力條件良好等的優點。本設計選用正置床身。
In accordance with layout manner, lathe-beds may be classified to be upright lathe-beds, inclined lathe-beds, taper slide based upright lathe-beds and vertical lathe-beds. Among these types, the upright lathe-beds have the advantages of good manufacturability, easy processing, great assurance for the kinematic accuracy of cutting tools and great ability in bearing the gravity of workpieces, etc. For that reason, upright lathe-bed is adopted in this paper for study.
2.2 床身加強肋的設計
2.2 Design of strengthening ribs of lathe-bed
床身加強肋是由3種基本類型組合而成，不同類型肋的組合就可以得到不同的力學性能，而且在不同的機床部件裏就有不同的肋結構[5]。各種加強肋對於柔度、結構材料和焊縫長度等都有不同程度的影響。The strengthening ribs of a lathe-bed pertain to three basic types. The combination of strengthening ribs of different types will lead to different mechanical properties and different rib structures in different lathe parts [5]. Different types of strengthening ribs will affect the flexibility, structural material, length of weld and other aspects to different extents.
對於普通數控車床的床身而言，因為其載荷不是十分的大，所以對抗彎和抗扭剛度沒有太多的要求，如果採用箱體結構，床身的結構就會變得複雜化，增加製造的成本，而採用垂直隔板型，不但排屑不方便，剛度的性能也不及其他類型的佈局。所以本機床床身採用人字肋，肋的厚度設定為12mm。Due to its load which is not so great, the lathe-bed of a common CNC lathe doesn’t require too much for bending resisting stiffness and torsional stiffness. Given a box structure is adopted, the lathe-bed’s structure will become complicated, thus making escape of chips difficult and the stiffness performance inferior to that of other kinds of layouts. Therefore, the lathe-bed of the lathe involved in this paper employs a herringbone rib with a thickness of 12mm.
2.3 板壁孔設計
2.3 Design of batten wall pore
為了減輕床身的重量和保證床身的剛度要求，設計了板壁孔結構。為了保證有足夠的剛度，機床對板壁孔的形狀、位置和大小都提出了相應的要求。
從床身的受力角度看來，床身主要受到垂直方向上的力，而且床身不是細長的結構，切應力的方向不能忽略。試驗表明，當板壁孔開在與彎曲平面垂直的方向上時比開在與彎曲平面平行的方向上時的結構對剛度的影響大，也就是說板壁孔與彎曲平面平行的方向上時對剛度影響最小，而對於本床身受到垂直方向上的力作用，彎曲平面為上腹板，所以板壁孔應該設計在上腹板裏。而當孔的位置是位於彎曲中性軸附近的時候，其對彎曲剛度的影響比較小，而當其遠離中性軸即靠近邊緣的時候，對彎曲剛度的影響就越大，所以應該將板壁孔佈置在彎曲中性軸附近，這樣可以減少孔對床身剛度的影響。
To reduce the lathe-bed and assure its stiffness requirement, a batten wall pore structure is designed. In order to assure adequate stiffness, the lathe has relevant requirements for the shape, location and size of the batten wall pore.
Analyzed from the stress angle, the lathe-bed is mainly imposed by a vertically upward force, moreover, the lathe-bed is not slender, so the direction of tangential stress should not be ignored. It is proved in the test that the influence of a structure for the stiffness will be greater when the batten wall pore is made in the direction vertical to the bending plane rather than in the direction parallel to, that is to say, the influence of structure for the stiffness will be the minimum when the batten wall pore is made in the direction parallel to the bending plane. And for the stress in the directional direction, which is imposed on the lathe-bed, the bending plane is an epiplastron, therefore, the batten wall pore should be designed in the epiplastron. When the batten wall pore is arranged at a place near the axis of center of bending, its impact on the bending resisting stiffness will be very little; and when it is arranged far away from the axis of center of bending and near the edge, the impact will be greater. For that reason, the batten wall pore should be arranged near the axis of center of bending, thereby weakening its impact on the lathe-bed’s stiffness.