In chapter 3 , empirical model of the thermal boundary conditions is analyzed on the cnc milling machine . process and method of thermal behaviors is discussed on xk717 cnc milling machine and its spindle system 第三章着重分析了数控铣床热边界条件的模型，以及讨论了数控铣床整机热特性和主轴系统热特性分析的过程与方法。
In chapter 4 , thermal characteristics of xk717 cnc milling machine are simulated and the result provides the basis to improve thermal behaviors for design of cnc milling machines compared with xk510 cnc milling machine 第四章对xk717数控铣床进行整机热特性分析，并与现有xks10数控铣床的分析结果进行比较，从而为进一步采取措施，改善机床热特性提供了依据。
Focusing on present defects of cnc milling machine tools specializing in machining the roller gear indexing cam , two design projects of simultaneous five - axis movements of cnc milling machine tools specializing in machining the roller gear indexing cam are raised 摘要针对当前国内弧面凸轮加工专用数控铣床的缺陷，提出两种五轴联动的加工弧面凸轮专用数控铣床的设计方案。
( 5 ) some novel tactics , such as a vision sensitivity - based arrangement tactic of level of details , are presented to improve the real - time rendering efficiency of the vr system . an image - based virtual workshop and a model - based virtual cnc milling machine are developed （ 5 ）提出了基于视觉敏感度的渲染细节水平分配、远虚近实、时间优先、以及并行渲染等策略以提高基于internet的虚拟环境的实时渲染效率。
In the last , the software appearance is shown , which shows the main information included in the step - nc files , nc programs and the error information , then the output files is operated on the hit - cnc milling machine and examines the feasibility of the translator 最后介绍了系统界面, step - nc文件主要包含信息的显示、 nc程序的显示和文件语法检查信息的显示,并且将输出的文件在hit - cnc数控系统三轴铣床上进行加工实验,验证了step - nc解释器的可行性。
In chapter 5 , thermal characteristics of spindle system with cooling jacket are analyzed on xk717 cnc milling machine by combining 3d finite element model with the temperature model of cooling water between spindle system and water tank . the effect factors to thermal behavior of the main spindle system are studied by analyzing both cooling parameters and structure . finally , the main conclusions and prospects for the future research are presented 第五章建立了xk717数控铣床主轴及主轴箱的三维有限元模型，结合普通水箱进行冷却时冷却水温升的数学模型，对带有冷却套冷却的铣床主轴系统进行热特性分析，得出了各种参数(如冷却泵的流量、水箱的大小、散热状况及冷却水的温度)对主轴热特性的影响规律;并提出了对主轴冷却套的布局进行改进的想法，从而为数控铣床的设计提供了理论依据。
On the base of digesting the optimil ' s technology of omat company in israel , the paper summarizes the developments on cnc adaptive control in china and in other countries . by analyzing and modeling machine tool , the paper developes a control scheme and a control algorithm which is used on cnc milling machines for machining operations 本论文在充分消化吸收以色列omat优铣装置技术的基础上总结了国内外在数控机床自适应监控方面的研究动态及趋势并对数控机床进行了系统的分析和建模，提出了一套应用于数控铣床的自适应控制方案及控制算法。
As a chinese saying goes , the mechanic , who wishes to do his work well , must first sharpen his tools . modern company . it has domestically advanced fixed - girder machining center , cnc milling machines , cnc line - cutting machine tools and so on , which could guarantee the machining qualigy and meet the designing q qualification and standard of the industry “工欲善其事，必先利其器” ，现代科技拥有国内最先进的加工设备加工中心、数控机床、数控线切割等，能有效保证加工精度，确保每件产品产品均达到设计要求和行业标准。
Jingyijia was established in 1998 , who is professional in manufaturing plastic mould , die - casting products . the workshop is more than 2000 cm2 . the moulds was started to be exported to south asia and europe in 2001 using cnc milling machine , electrospark , wire - electrode cutting , etc . technique is unending while no the best in moulds . only by untiring working , reserching and improving , can we design good moulds . we welcome every old and new friend both at home and abroad to visit us and building business relationship 厦门精艺佳公司成立于98年,百分百开发生产塑胶产品,压铸产品,制造各类塑胶压铸模具.模具厂使用面积两千多平方米,多台大型cnc铣床及电火花,线切割能加工制造, 3 . 5米以下各类模具. 2001年开始模具出口东南亚及欧洲.技术永无止境,模具永远没有第一,只有不懈努力,研发,改进才能设计好模具.我们真诚期望国内外朋友,同行莅厦交流指导,为繁荣经济推动民族工业科学进步和伟大复兴作应有贡献
Its main products are dongwei brand woodworking machinery and metal - cutting lathes , among which cnc rotary lathe in bqk series has been assessed as " famous brand in shandong province " , cnc slicer in bbk series has been assessed as " important new products in state rate " and cnc milling machine , cnc grinding machine , and radial drilling machine has become very popular in the market 主要生产经营"东维"牌木工机械和金切机床等产品，其中bqk系列数控旋切机被评为"山东省名牌产品" ， bbk系列数控刨切机被评为"国家级重点新产品" ，数控龙门铣、龙门磨和摇臂钻床已成为市场热销产品。
