锻压技术

多排链轮的半精热锻制坯及其模具设计

英文标题：Semi-precision hot forging blocking and die design of multi-row chain wheel

作者：赵日红池成忠卫春娟程旺军梁伟

单位：太原理工大学

分类号：TG316

出版年,卷(期):页码：2014,39(6):20-23

摘要：

针对链轮传统机械加工中的切削量大和材料利用率低等缺点，基于链轮结构提出了多排链轮的半精热锻制坯新工艺。阐述了半精模锻制坯工艺中的链轮锻件图形成、毛坯尺寸计算及其在凹模中的定位等技术要点，重点对链轮锻件的齿形设计做了详述，并设计出一套完整的链轮半精热锻制坯模具。通过某三排链轮的精锻工艺计算表明，采用半精密模锻制坯+滚齿切削加工生产单个零件，原材料能节约32.7%，切削加工量减少50.8%。

Aiming to the weaknesses of traditional machining technology for chain wheel, such as big cutting output, low utilization rate of material, etc., a new technology of semi-precision hot forging blocking of multi-row chain wheel was put forward based on the structure of chain wheel. The key technologies in the process of semi-precision die forging blocking, such as the formation of chain wheel forging figure, size calculation and fixed position in the die of blank, etc., were elaborated, and the design of tooth profile of chain wheel forging was recounted emphatically, meanwhile a set of integral semi-precision hot forging blocking die for chain wheel was designed. The process calculation of precise forging for a three-rows chain wheel shows that the raw material is saved by 32.7% and the cutting volume is reduced by 50.8% with semi-precision die forging blocking and hobbing machining to produce single part.

基金项目：

国家自然科学基金资助项目（51274149）

参考文献：

［1］夏巨谌，丁永祥，胡国安. 闭式模锻[M]. 北京：机械工业出版社，1993.Xia Juchen, Ding Yongxiang, Hu Guoan. Closed Die Forging[M]. Beijing: China Machine Press, 1993.
［2］陈丰，陈次昌. 直齿圆柱齿轮冷精锻成形的实验研究[J]. 锻压技术，2007,32(2):60-62.Chen Feng, Chen Cichang. Experimental research on cold precision forging of cylindrical spur gear[J]. Forging & Stamping Technology, 2007，32(2):60-62.
［3］吕炎. 锻压成形理论与工艺[M]. 北京：机械工业出版社，1991.Lv Yan. Forging Forming Theory and Technology[M]. Beijing: China Machine Press,1991.
［4］邱德花，边翊，钟志平，等. 直齿锥齿轮预锻齿形优化设计[J]. 锻压技术，2012,37(3):7-10.Qiu Dehua, Bian Xu, Zhong Zhiping,et al. Gear tooth profile optimization of pre-forging spur bevel gear[J]. Forging & Stamping Technology, 2012，37(3):7-10.
［5］池成忠，许树勤. 齿轮半热精锻件的齿形设计[J]. 锻压机械，1997,(5):15-17.Chi Chengzhong, Xu Shuqin. Designing the tooth profile of hot semi-precise forgings of gear[J]. Metalforming Machinery, 1997，(5):15-17.
［6］GB/T 12362-2003.钢质模锻件公差及机械加工余量[S].GB/T 12362-2003.Steel die forgings tolerances and machining[S].
［7］Chitkara N R,Bhutta M A. Near-net shape forging of spur gear forms: An analysis and some experiments[J]. Int. J.Mech. Sci,1996,(38):891-895.
［8］凌文凯，许洪斌，胡建军. 直齿锥齿轮冷精锻工艺的优化设计[J]. 锻压技术，2012,37(5):176-179.Ling Wenkai, Xu Hongbin, Hu Jianjun. Optimization design of precision cold forging for spur bevel gear[J]. Forging & Stamping Technology, 2012，37(5):176-179.
［9］郑红，吴国锐. 基于浮动凹模的航空斜齿轮锻造模具设计[J]. 热加工工艺，2013,42(11):156-158.Zhen Hong, Wu Guorui. Design of aviation helical gear forging die based on floating concave die[J]. Hot Working Technology, 2013，42(11):156-158.
［10］Choi J C,Choi Y, Hur K D,et al. A study on the forging of spur gears[J]. Int. J. Mech. Sci.,1996,(38):1333-1338.

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