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双语推荐：CA6140

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文章完成了对"CA6140支架"的加工工艺分析设计。支架类零件广泛应用于各种机械的变速箱中,本文在详细分析了(CA6140支架的生产工艺规程),从而实现定制中批量生产加工的工艺规程。就支架的加工工艺,分析了该零件的整套加工方案,最终确定了一套科学合理的加工路线,并在以后的计算过程中,验证了这套工序的合理性,最后,以(CA6140支架)夹具设计为例,进行了夹具的设计,并做了切削力、夹紧力的分析计算。
completed "CA6140 bracket" in process analysis and design. Bracket parts are widely used in various me-chanical gearbox, this paper analyzes the (CA6140 stent manufacturing process planning), in order to achieve mass cus-tomization in the process of order processing. On the bracket process, analysis of the complete set of parts machining pro-gram, and ultimately determine a set of scientific and rational processing line, and in the subsequent calculation process to verify the reasonableness of this process, and finally to (CA6140 bracket) fixture design, for example, conducted a fixture design, and made a cutting force, clamping force analysis and calculation.

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文章介绍了CA6140普通机床改造成为采用GSK980T数控系统控制的经济型简单数控机床的改造设计方案，可为广大普通设备的挖潜改造提供参考。
This article introduces the scheme of modifying the engine lathe CA6140 into economical numerically controlled lathe designed by GSK980T numerical control system, Which can be used as a reference of modifying and making better use of general equipment.

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本文首先指出了旧机床电气自动化系统改造的意义,分析了CA6140车床继电器接触器式电气控制系统,用S7-200设计了该车床的PLC控制系统,设计了原理图并编制了程序。
The significance of modification of electric control system of old machine is pointed out , and the old relay and contactor electric control system of CA6140 lathe is analyzed. The PLC control sys-tem of this machine is designed using S 7-200 , and then the principle diagram and program are de-signed .

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介绍CA6140车床主轴产品在机加工生产流程中的质量可追溯性管理，极大加强职工的责任感，提高员工生存技能，实现产品质量稳定的预期目的，使企业具有更完善、更有竞争力的生产过程和全面产品品质管理能力。
The traceability management for the quality of lathe spindle products in machining process of CA6140 was introduced , which greatly strengthened the staff''s sense of responsibility and im-proved employees'' skills , achieved the expected purposes of the stability of product quality , and made production process and management ability of product quality more perfect and more competitive for the enterprise.

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传统车床方刀架在使用中经常出现偏移现象，存在小滑板上销孔套筒磨损过大的问题，影响了加工精度，降低了工作效率。以CA6140车床为例，经研究分析，其销孔套筒的材料为45号钢，按传统热处理方式对其进行处理后耐磨度不够。探讨了采用现代表面处理工艺强化45号钢耐磨性能的可行性，并对实际生产中车床方刀架的故障进行了处理。
Deviation condition of traditional lathe carriage during operation was caused by over wear -out issue of sliding plate pin hole sleeve to affect process precision and reduce working efficiency .Taking CA6140 lathe as example and by research and analysis , it found that the wearability of pin hole sleeve material 45 steel was not sufficient by tra-ditional heat treatment process , further the realizability of 45 steel wearability strengthened by current surface treatment process has been discussed , meanwhile lathe carriage failure in operation has been handled .

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为了克服CA6140车床自身存在的弊端和不规范的数控化改造，探讨了CA6140数控化技术改造的相关问题。分析了车床数控化改造的原理，研究了车床数控化改造技术和实施方案，包括对主传动系统，进给传动系统以及机床导轨的改造，自动回转刀架的选择与安装，并介绍了数控系选择及其接口的定义。以普通车床CA6140为例，经实验验证，改造后机床的精度和稳定性较以往有大幅提升。实践应用表明：该方案是可行、有效的，适用于对普通车床的数控化改造。
In order to overcome the drawbacks of CA61 40 and abnormal NC reform,this paper explored the puzzle of related technology in NC reform of CA61 40.And it analyzed the principle of NC reform,researched on the technology and implementation plan of NC reform,including the reform of main drive system,feeding-drive system and machine guide,the selection and instal a-tion of automatic circular cutter holder,and introduced the instal ation and interface definition of NC system.It took the inspection of industrial parts as an example,and the experiment demon-strated that it had been greatly improved in stability and accuracy of the lathe.The application of related practice shows that the proposed solution is feasible and effective,and propitious to nu-merical control reform of universal lathe.

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采用田口实验方法在CA6140A车床上对经调质的40Cr钢进行了正交干切削实验，获得了不同切削用量下的切削力和工件表面粗糙度值．采用静态信噪比和方差分析方法对实验结果进行了分析，得到了切削速度、进给量和背吃刀量对切削过程中的切削力和工件表面粗糙度值的贡献度，根据分析结果对切削用量进行了优化，并对优化后的切削参数值进行了实验对比研究．结果表明：切削速度、进给量和背吃刀量对切削力的贡献度分别为3.656％，20.006％和72.396％，对工件表面粗糙度的贡献度分别为18.828％，60.287％和0.718％；为实际工业生产中切削加工的切削参数优化提供了重要参考．
In order to provide reference for cutting parameter optimization in practical industrial produc‐tion ,a research was made in which the orthogonal dry turning tests of 40Cr steel were carried out on the CA6140A lathe using Taguchi method .The variations of main cutting forces and surface roughness were obtained with different cutting parameters .The statistical methods of signal to noise ratio (SNR) and the analysis of variance (ANOVA) were employed to investigate the effects of cutting speed ,feed rate and depth of cut on F and Ra .Optimal cutting parameters for F and Ra were obtained according to the analysis results and were verified through experiments .The results of this study showed that the contribution de‐grees of cutting speed ,feed rate and depth of cut were 3.656% ,20.006% and 72.396% to cutting force , respectively ,and 18.828% ,60.287% and 0.718% to surface roughness ,respectively .

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传统车床方刀架在使用中经常出现偏移现象，存在小滑板上销孔套筒磨损过大的问题，影响了加工精度，降低了工作效率。以CA6140车床为例进行研究发现，其销孔套筒的材料为45号钢，按传统热处理方式对其进行处理后耐磨度不够。通过现代热处理工艺来强化45号钢的耐磨性能，从而解决了实际生产中车床方刀架的故障。
The conventional lathe carriage often appears the offset phenomenon in use,and there is excessive wear of pin hole sleeve of the smal skateboard,which affects the machining accura-cy and reduces the efficiency.CA61 40 lathe,for example,the pin hole sleeve is made of 45 steel,whose abrasion resistance is not enough by conventional heat treatment processing.Thus it is necessary to explore the modern heat treatment process to enhance the abrasion resistance of 45 steel,and resolve the actual production fault of lathe carriage.

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