Analyzing and Characterizing Interference of Involute Spline Cold Roll-beating
-
摘要: 针对渐开线花键连续分度冷滚打过程中滚打轮与工件之间的干涉现象,分析了滚打轮在打入和打出过程对工件干涉现象的形成机理,分析表明:打入和打出过程干涉现象分别出现在键槽轮廓的两侧。建立了计算冷滚打干涉量的数学模型,提出了利用齿厚误差表征干涉量的方法。计算结果表明:渐开线花键连续分度冷滚打具有展成法的特点;干涉现象主要集中在渐开线根部,键槽轮廓两侧干涉量相等。利用DEFORM软件对冷滚打过程进行了有限元模拟,分析了工件变形力分布情况,得到了键槽截面轮廓曲线,验证了分析和计算的正确性。进一步计算表明:干涉量与花键模数成正比,与滚打轮回转半径和齿形压力角成反比。干涉量的定量表征为滚打轮安装角计算和滚打轮轮廓设计奠定了理论基础。Abstract: The paper analyzed the formation mechanisms of interference on the beating-in and beating-out process of the roller according to the interference of roller and workpiece on the continuous-division cold roll-beating process of an involute spline. The analysis indicates that the interference on the beating-in and beating-out processes respectively appear on the two sides of the keyway contour. The mathematical model for calculating the interference of cold roll-beating is established, and the method for interference characterization with tooth thickness error was put forward. The calculation results indicate that the continuous-division cold roll-beating process of the involute spline has generation characteristics, and the interference mainly concentrates in the bottom part of the involute spline and that the interference is equal on the two sides of keyway contour. The finite element simulation of cold roll-beating process was carried out with DEFORM. The distribution of deformation force was analyzed, the section keyway contour curve was given, and the correctness of analysis and calculation was verified. Further calculation indicates that the interference was proportional to the number of modules of the involute spline and was inversely proportional to the radius of roller gyration and the pressure angle of the involute spline. The quantitative characterization of interference laid the theoretical foundation for angle calculation and roller contour design.
-
Key words:
- cold roll-beating /
- continuous division /
- interference /
- finite element analysis /
- tooth thickness error
-
[1] 崔凤奎,李言,周彦伟,等.渐开线花键轴冷滚轧工艺试验[J].农业机械学报,2006,37(12):189-172 Cui F K, Li Y, Zhou Y W, et al. Technologic research on rolling involute spline axis[J]. Transactions of the Chinese Society for Agricultural Machinery, 2006,37(12):189-172(in Chinese) [2] Amirkhanlou S, Rezaei M R, Niroumand B, et al. High-strength and highly-uniform composites produced by compocasting and cold rolling processes[J]. Materials & Design, 2011,32(4):2085-2090 [3] Csiszar G, Balogh L, Misra A, et al. The dislocation density and twin-boundary frequency determined by X-ray peak profile analysis in cold rolled magnetron-sputter deposited nanotwinned copper[J]. Journal of Applied Physics, 2011,110(4):043502 [4] Smirnov-Alyaev G A. Study of finite plastic deformation in cold form rolling of splines on shafts[R]. AD0727926. FTD-HC-23-154-71. London:Macmillan, 1971:1-7 [5] 刘志奇,宋建丽,李永堂,等.渐开线花键冷滚压精密成形工艺分析及试验研究[J].机械工程学报,2011,47(14):32-38 Liu Z Q, Song J L, Li Y T, et al. Analysis and experimental study on the precision cold rolling process of involute spline[J]. Journal of Mechanical Engineering, 2011,47(14):32-38(in Chinese) [6] 崔凤奎,李言,周彦伟,等.渐开线花键滚轧轮建模及其修正[J].南京航空航天大学学报,2005,37(S1):90-93 Cui F K, Li Y, Zhou Y W, et al. Roller modeling for involute spline and its amendment[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2005,37(S1):90-93(in Chinese) [7] 杨建玺,崔凤奎,王晓强,等.冷滚轧滚轮设计理论及实验修正[J].中国机械工程,2004,15(24):2168-2171 Yang J X, Cui F K, Wang X Q, et al. Design theory and experimental amends of involute spline roller[J]. China Mechanical Engineering, 2004,15(24):2168-2171(in Chinese) [8] 崔凤奎,李言.渐开线花键滚轧轮CAD及磨削仿真[J].机械工程学报,2005,41(12):210-215 Cui F K, Li Y. CAD system of roller for involute spline and simulation of grinding process[J]. Journal of Mechanical Engineering, 2005,41(12):210-215(in Chinese) [9] 葛便京,杨有亮,冯春英,等.渐开线花键轴冷滚轧轮的设计[J].工具技术,1998,(12):24-26 Ge B J, Yang Y L, Feng C Y, et al. Design of cold rolling tools for involute splined shafts[J]. Tool Engineering, 1998,(12):24-26(in Chinese) [10] 林苗兴.冷打花键工艺[J].拖拉机,1989,(4):36-41 Lin M X. Process for cold beating spline[J]. Tractor, 1989,(4):36-41(in Chinese) [11] 广州拖拉机厂.冷打花键轴工艺[J].机械科技动态,1976,(1):1-12 Guang Zhou Tractor Factory. Process for cold beating spline shaft[J]. Developments in Mechanical Science and Technology, 1976,(1):1-12(in Chinese) [12] Grob E, Krapfenbauer H. Roller head for cold rolling of splined shafts or gears:United States, US3818735 A[P]. 1974-06-25 [13] 李言,杨明顺,李玢,等.丝杠冷滚打成形动力学仿真及分析[J].西安理工大学学报,2009,25(4):383-387 Li Y, Yang M S, Li F, et al. Dynamics simulation and analysis of lead screw cold roll-beating[J]. Journal of Xi'an University of Technology, 2009,25(4):383-387(in Chinese) [14] 崔凤奎,朱文娟,王晓强,等.高速冷滚打成形技术研究现状与发展趋势[J].河南理工大学学报(自然科学版),2012,31(2):191-195(in Chinese) Cui F K, Zhu W J, Wang X Q, et al. Current research and development trends of high-speed cold rolling technology[J]. Journal of Henan Polytechnic University (Natural Science), 2012,31(2):191-195(in Chinese) [15] 崔凤奎.高速精密冷滚打成形技术研究[D].西安:西安理工大学,2007 Cui F K. Study of high-speed precise forming with cold roll-beating technique[D]. Xi'An:Xi'an University of Technology, 2007(in Chinese) [16] 彭树杰,彭劭闻.渐开线圆柱齿轮体积的算法研究[J].模具技术,2011,(6):1-4 Peng S J, Peng S W. Algorithms research on tooth profile volume of involute profile cylindrical part[J]. Die and Mould Technology, 2011(6):1-4(in Chinese)
点击查看大图
计量
- 文章访问数: 115
- HTML全文浏览量: 20
- PDF下载量: 6
- 被引次数: 0