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河南理工大學本科畢業(yè)設計（論文）
摘 要
在普通機床上加工方頭軸類零件，工作效率低、勞動強度大。當其零件有一定的批量要求時，其生產就顯得力不從心了，為此設計了專用設備。車方機床用曲率半徑很大的橢圓短半軸曲線代替直線切削方形工件。生產率高,刀具成本低。選取適當的車頭行星輪的分度圓直徑,可以有效地控制車方原理的直線 度誤差。對實際工件進行了原理誤差的分析計算和行星輪系的設計計算。
本組合機床是針對單面雙工位臥式車削的組合機床，在完成組合機床總體設計的基礎上，主要完成液壓系統及滑臺的設計。在設計過程中借鑒了國內一些現有組合機床的設計資料，結合被加工零件的結構特征，在指導老師的幫助下設計而成。進給部分采用液壓滑臺形式，主要是因為液壓系統具有工作比較平穩(wěn)，反應快、沖擊小，能高速啟動、制動和換向；能在運動過程中實現無級調速，調速方便，而且調速性能好；控制、調節(jié)比較簡單，操縱比較方便，易于實現自動化，如與電氣控制相配合，可方便地實現復雜的程序動作和遠程控制等優(yōu)點。
關鍵詞: 車方 行星輪系 橢圓 方形 直線度 液壓
Abstract
Process the square shaft parts on the common machine tool, inefficient and labor-intensive. When a certain amount for their parts, their production becomes unable, for the design of specialized equipment. It illustrates a ellipse’s short semi - axial curved line with great cured radius , that can replace the straight line for cutting square work - pieces on the machine tool. The productivity of this rebuilt machine tool is higher and the cost of cutter is lower. The principle straightness error of cutting square in work - pieces can be controlled by choosing a suitable pitch diameter of the planetary gear in the machine tools. Analytic calculations of the error and design of this train have been given for a real work -piece.
This combination machine tools against unilateral double spaces horizontal turning combination machine tools, machine tool design in complete portfolio basis, the completion of the main hydraulic system and further Sliding workstations design. In the design process for some of the existing portfolio of domestic machine tool design data, the structural characteristics of the processed parts, with the help of teachers in guiding the design by. To the use of hydraulic slide into some form of Sliding workstations, mainly because of a hydraulic system work more stable, responsive, small shocks can speed up, brake and invert; And it can achieve infinitely variable speed control during the movement, speed control convenient, and the speed control performance is good; Controlling and regulating simpler, more convenient to manipulate, easy to automate, if compatible with the electrical control can easily achieve complex procedures, such as remote-control movements and strengths.
Key words : Square Cutting Planetary Gear Train Ellipse Square Straightness Hydraulic
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