锻压技术

搅拌机叶片冲压成形滑移量预测及试验研究

英文标题：Experimental research and slip prediction of mixing

作者：陈泷王祥陈炜徐雪来袁豹

单位：江苏大学

分类号：

出版年,卷(期):页码：2014,39(10):38-42

摘要：

搅拌机叶片的现有生产方式是自由弯曲成形，无压边装置定位夹紧，叶片在成形中会因受力不均而发生滑移，影响叶片的精度。但根据滑移量进行前期形状补偿能减小甚至消除滑移产生的精度问题，而且准确、快速地获得滑移量能保证产品质量，提高生产效率。本文通过对搅拌机叶片冲压成形的数值模拟，预测了成形后的叶片滑移量；同时，进行了叶片冲压成形试验并测量其实际滑移量。对比发现滑移量预测值和实测值的变化趋势基本吻合，表现为叶片四角滑移较大、中部滑移较小，滑移量预测值和实测值两者之间误差稳定；模拟量经处理后基本能代表实际量，验证了有限元模拟方法在搅拌机叶片冲压成形滑移量预测中的有效性。

The present production method of mixing blade in blender is free bending, and the blade will be shifted in the bending process because of the uneven force without a blank holder, so the bending precision of blade is affected greatly. The shape compensation in advance according to the slip can decrease or even avoid the shaping error, which can get an accurate slip quickly, and the quality and efficiency can be greatly improved. The blade slip was predicted by the numerical simulation about the bending process, and the bending experiment was carried out at the same time and the blade slip was measured. The variation trend of the calculated values and the measured values was generally in agreement with the measured values. The result shows that the slip value on the blade corner is larger and the slip value in the middle is smaller，and the error between them is stable through comparison. The simulated results after processing can represent experimental data generally, which shows that the finite element simulation method is effective in the prediction of the blade slip during bending.

基金项目：

2012年江苏大学工业中心大学创新实践基金资助项目

陈泷(1990-)，男，硕士研究生

参考文献：

[1]张海强，张克延，翟云峰，等. 基于UG的混凝土搅拌输送车搅拌叶片的参数化设计[J]. 机械设计与制造，2009，30(4)：4-6.

Zhang H Q, Zhang K Y, Zhai Y F, et al. Parametric designing for the mixing blades of the concrete-mixer truck based on UG[J]. Machinery Design & Manufacture, 2009, 30(4): 4-6.

[2]张慧. 混凝土搅拌车搅拌筒结构设计及流场仿真[D]. 重庆：重庆大学，2012.

Zhang H. Flow Field Simulation and Structure Design of the Concrete Mixer Mixing Canister[D]. Chongqing: Chongqing University, 2012.

[3]王磊明，陈滔. 混凝土搅拌机叶片结构及曲面形状研究探讨[J]. 江西建材，2007，14(1)：22-25.

Wang L M, Chen T.The study for the structure and surface shape of the mixing blades of the concrete-mixer truck[J]. Jiangxi Building Materials, 2007, 14(1): 22-25.

[4]Chen W, Liu Z J, Hou B, et al.Study on multi-stage sheet metal forming for automobile structure-pieces[J]. Journal of Materials Processing Technology, 2007, 187: 113-117.

[5]Wei C, Shan C, Yi D, et al. Establishment andapplication of forming limit diagram of multi-gauge laser tailor-welded blanks[J]. Advanced Materials Research, 2010, 97-101: 420-425.

[6]张国君，潘龙勋，陈保钢. 搅拌车搅拌叶片曲面建模及展开[J]. 专用汽车，2011，30(1)：74-75.

Zhang G J, Pan L X, Chen B G.Surface modeling and flattening of mixing blade in concrete mixer[J]. Special Purpose Vehicle, 2011, 30(1): 74-75.

[7]李小华，马力，王元良，等. 基于UG的混凝土搅拌运输车搅拌叶片三维造型[J]. 专用汽车，2006，25(5)：37-39.

Li X H, Ma L, Wang Y L, et al.Three dimensional modeling for the mixing blades of the concrete transportation truck based on UG[J]. Special Purpose Vehicle, 2006, 25(5): 37-39.

[8]陈磊，杨继昌，陈炜，等. 考虑接触演变的板材回弹过程建模与优化[J]. 机械工程学报，2005，41(11)：189-193.

Chen L, Yang J C, Chen W, et al.Modeling and optimization of spring-back with contact evolution in sheet metal forming[J]. Chinese Journal of Mechanical Engineering, 2005, 41(11): 189-193.

[9]林忠钦. 车身覆盖件冲压成形仿真[M]. 北京: 机械工业出版社，2005.

Lin Z Q. The Simulation of Forming for Automobile Panel[M]. Beijing: China Machine Press, 2005.

[10]周泰安，冯杨，阮锋. 基于正交试验的螺旋叶片冲压成形模拟优化研究[J]. 模具工业，2009，35(12)：14-18.

Zhou T A, Feng Y, Ruan F. Simulation and optimization of the stamp forming of multi-curvature component based on orthogonal experiment[J]. Die & Mould Industry, 2009, 35(12): 14-18.

[11]王锦红，钟燕锋. 混凝土搅拌叶片冲压成形工艺的有限元数值模拟优化设计[J]. 机床与液压，2004，33(8)：22-24.

Wang J H, Zhong Y F.The technical optimization design of numerical simulation for the blade stamping process of a large concrete mixer truck[J]. Hydromechatronics Engineering, 2004, 33(8): 22-24.

[12]黎振东，阮锋，刘成军. 复杂曲面冲压件回弹评价参考点选定方法研究[J]. 机械设计与制造，2010，31(6)：226-228.

Li Z D, Ruan F, Liu C J.Research on spring-back evaluate reference points selecting of complex surface sheet material stamping[J]. Machinery Design & Manufacture, 2010, 31(6): 226-228.

服务与反馈：

【文章下载】【加入收藏】