Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅
度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒
銑刀
銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片
銑刀
銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難
度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難
度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片
銑刀直徑選擇、
銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義
( 3 ) a category - based dynamic graph. ( cdg ) structure, which supports the novel tactic of relation - oriented collision detection, is presented to improve the efficiency of collision detection and realize the attached motion in vr scene. ( 4 ) a dynamic 8 - tree structure and a relative self - similar recursion algorithm are presented to model a dynamic workpiece object, which is machinable
（ 3 ）提出並實現了基於分類的動態圖結構（ cdg ） ，該結構支持面向關系的碰撞檢測，很好的解決了虛擬cnc
銑床環境下碰撞檢測的唯一性和完全性問題，在很大程
度上提高了碰撞檢測的實時性，並實現了虛擬環境下的關聯運動。
It has the multi - function of cutting side, rotating angles, grinding side and milling stone line. as a durable equipment with sealed lubricant tracks, it can cut stone to the very precision
本機具有切邊、倒角、磨邊，
銑石線功能，導軌採用油浸式密封防護，切割精
度高，經久耐用。
Bridge type plano - milling machines - testing of the accuracy
橋型龍門
銑床.精
度測試
The structure character of chain nest is analyzed. a set of easy structure and easy usage milling tool are designed and made. the processing precision is ensured and design standard is reached
分析了鏈輪鏈窩的結構特點，設計、製造了一套結構簡單、使用方便的
銑削工裝，保證了加工精
度，達到了設計要求。
They had never been worn, my mother said. under that, the miscellany began - a quadrant, a tin canikin, several sticks of tobacco, two brace of very handsome pistols, a piece of bar silver, an old spanish watch and some other trinkets of little value and mostly of foreign make, a pair of compasses mounted with brass, and five or six curious west indian shells
在那套衣服的下面，開始出現了各式各樣的東西：一個四分儀，一個錫制的小酒杯，幾顆煙，兩對非常漂亮的手
銑，一根銀條，一隻西班牙老懷表，還有其他一些不值錢的小裝飾品，大多是外國製造的，一副黃銅桿的圓規，還有五六個珍奇的西印
度貝殼。
The effect of cutting speed, cutting thickness, cutting knife and materials on the working power capacity is discussed. finally tractive property of road plane milling machine is also studied. through the comparison of the results of theory calculation and experimental results the equation of working power capacity of milling machine is modified
本文對冷式瀝青路面
銑刨機的動力學工作過程進行了理論分析與試驗研究，並利用金屬材料切削的基本原理，研究了主切削力，並從能量轉化守恆的角
度推導了
銑刨機
銑刨作業阻力和功率計算公式，討論了機器切削速
度、
銑刨厚
度以及刀具與材料特性對
銑刨作業阻力和功率的影響規律，最後討論了
銑刨機牽引性能，且通過試驗研究驗證了
銑刨作業阻力和功率公式。
Aspheric optical compound machine tool ( aocmt ) which integrates grinding, lapping and polishing is developed. the influences of motion errors on grinding accuracy are analyzed. according to homogeneous coordinate transition model, the postposition processing algorithm in multi - axis numerical control machining is deduced
3 、研製了集
銑磨成型、研磨、拋光於一體的光學非球面復合加工機床（ aocmt ） ，分析了各種運動誤差對
銑磨精
度的影響；根據空間齊次坐標的變換模型，推導出多軸數控加工的後置處理演算法；通過五軸數控聯動， aocmt機床能夠以法向方式加工出任意復雜的光學表面，
銑磨精
度穩定在8 m之內。
Since several advantages ( for example : direct cutting of high hardness die materials is possible, decrease cutting time, simplize die manufacturing process, . . etc ) can be achieved easily, high speed milling is very suitable for die manufacturing
高速
銑削加工具有高加工效率，可直接加工高硬
度模具材料，可縮短加工時間、簡化模具加工流程等優點，相當適合模具製作。
Compared with the traditional edge milling machines, this machine series is dismountable in their tracks, more rational in structure by heat - treatment of the bench, more reliable and stable in the milling & turning head ' s running. the feed and feed - back systems are fully independent respectively. the feed - back is quick and is highly efficient. the angle of the milling tool ' s tray is convenient in adjustment, and the custom - built tool rest and the normal tool rest can be inter - converted. they are the updated products of the traditional edge milling machine
該系列
銑邊機與傳統
銑邊機相比，其導軌安裝形式為可拆裝式，並通過熱處理，床身結構更合理，
銑削頭運行更平穩可靠，其進給系統與返程系統完全獨立，返程速
度快、效率高、
銑刀盤的角
度調整方便，定製刀盤與標準刀盤可互換，是傳統
銑邊機的更新換代產品。
In this study, based on bispectrum and bicoherence extraction of vibration acceleration signals at spindle end of a vertical machining center while milling operation, change rules of bispectrum and bicoherence of the signals were analyzed for the progressive wearing process of the flank wear land of the milling cutters
通過提取
銑削加工過程中機床主軸端振動加速
度信號的雙譜及其雙相干系數，分析了
銑刀后刀面漸進磨損過程雙譜及其雙相干系數的變化規律。
The heng zhong group found in 80 ' s, owns several years produce manufacturing experience of many years, is a profession group that produce the ganting boring and milling machine, and heavy type lather of business enterprise, gather a tool machine development, produce, sell, service at the whole body, own strong technique strength, high accuracy of large process an equipments, strict of examination means, the quality of science management system, modern of design principle, provide more high - quality productions for you
恆重集團創立於八十年代，擁有多年生產製造經驗，是一家專業生產重型龍門龍門鏜、
銑、磨、刨以及重型車床的企業，集機床開發、生產、銷售、服務於一身，擁有雄厚的技術力量，高精
度的大型加工設備，嚴格的檢測手段，科學的質量管理體系，現代化的設計理念，為您提供更優質的產品。
Knee type vertical milling machines - testing of the accuracy
升降臺型立式
銑床.精
度測試
Knee type horizontal milling machines - testing of the accuracy
升降臺型臥式銑床.精度測試
