φ245圆锥螺旋齿轮摆辗成形工艺及模具设计(含CAD零件图装配图)(任务书,开题报告,外文翻译,论文说明书11000字,CAD图6张)
摘 要
圆锥螺旋齿轮摆辗成形工艺是一种较为先进的齿轮精密塑性成形工艺，主要优点有：省力、能源消耗低、投资少、模具寿命高、产品精度高、产品成形性能质量较好、生产效益高、易于实现机械化及自动化等优点。齿轮传统的加工方法是采用金属的切削加工工艺，材料的利用率低，生产的效率低，生产的成本较高，加工出的产品强度不高，寿命不长，相对于传统切削加工，精密塑性成形工艺有着巨大优势。
摆辗是一种在局部的连续的压力下的塑性成形工艺，相对于精密模锻，他成形力较小，摆辗工艺作为一种新型的加工方法，能以较小的力成形较大的零件，成形的大多为对称零件，工作切削量少或者不需要切削、生产效率高、节省成本等特点，摆辗工艺有着广阔的应用前景。
本文主要研究成果如下（1）对圆锥螺旋齿轮进行了建模；（2）设计计算了圆锥螺旋齿轮的摆辗工艺参数；（3）设计圆锥螺旋齿轮的模具；（4）利用有限元软件分析了摆辗过程中成形与载荷之间关系，促进摆辗成形工艺的进一步发展和实施，同时也促进了我国工业的发展。
关键词：摆辗；螺旋锥齿轮；有限元模拟；模具设计
Abstract
Orbital Forming conical helical gear technology is a more advanced gear precision plastic forming process, the main advantages are: saving, low energy consumption, low investment, die life, high precision products, product quality and forming better performance, high production efficiency , easy to implement mechanization and automation advantages. Gear traditional processing method is to use metal cutting technology, low utilization of materials, low production efficiency, high cost of production, processing of the product strength is not high, life is not long compared to conventional machining, precision plastic forming process has a huge advantage.
Orbital is a partial under continuous pressure plastic forming process, with respect to precision forging, forming his force is small, rotary forging process as a new processing method, forming a small force can be larger parts, forming mostly symmetrical parts, the work does not require cutting or less cutting, high production efficiency, cost savings and other characteristics, Orbital technology has broad application prospects.
The main results are as follows (1) of the conical helical gears modeled; (2) the design calculations Orbital parameters conical helical gears; (3) mold design conical helical gears; (4) the use of finite element analysis software the pendulum run over the relationship between Cheng Zhongcheng load shape and promote the further development and implementation of Orbital forming process, but also to promote the development of China's industry.
Key Words：Orbital; spiral bevel gear; finite element simulation; mold design
目 录
第1章 绪论 1
1.1 引言 1
1.2 国内外研究的现状和发展趋势 1
1.2.1 国外摆动辗压技术发展状况 1
1.2.2 国内摆动辗压技术发展状况 2
第2章 摆辗工艺 4
2.1 摆动辗压的工作原理和特点 4
2.2 摆头倾角的选择 5
2.3 摆头运动轨迹的选择 5
2.4 平均每转进给量 6
2.5面积接触率的计算 6
2.6 摆头转速 7
2.7 摆辗机公称压力 7
2.8摆辗机的选择 8
第3章 摆辗模具的设计 9
3.1 模具的特点 9
3.2 模具材料 9
3.3 模具的设计 10
3.3.1 摆动碾压件的设计 10
3.3.3 摆辗模具模膛设计 10
3.3.4 摆头与凹模间的间隙 11
3.4 模具的润滑与冷却 11
3.5 分型面的设计 11
3.6 摆辗凸模设计 12
3.7 摆辗凹模设计 13
第4章 有限元模拟 15
4.1 引言 15
4.2 DEFORM-3D的特点 15
4.3 圆锥螺旋齿轮的建模 16
4.4 圆锥螺旋齿轮的摆辗过程模拟 18
4.5有限元数值模拟结果及分析 19
第5章 总结与展望.........................................................................................................21
5.1 总结...................................................................................................................21
5.2 展望...................................................................................................................21
参考文献 22
致谢..................................................................................................................................23
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