机械式粉末冶金压机结构设计与仿真研究
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摘要
粉末冶金压机作为粉末冶金生产工艺中压制成形的关键设备,市场需求量大,已成为国内外高校、科研院所和生产企业研究的热点。通过分析国内外机械式粉末冶金压机的产品结构和技术研究现状,并以此为基础,对机械式粉末冶金压机整机结构、压力传动"曲柄-摆杆-滑块"机构、脱模位置恒定机构、机械手工艺动作和智能控制系统进行了设计和仿真研究。"曲柄-摆杆-滑块"机构设计由于存在"保压区",使得压机运行更加平稳,振动减少,能较好地保证压机的精度。脱模位置恒定机构设计可通过主轴驱动单独控制脱模动作,在压制不同产品时,无需重新调整脱模行程,操作便捷,且脱模位置恒定,压制产品精度高。该设计可以为机械式粉末冶金压机的设计和研究提供参考。
As the key equipment for pressing and forming in powder metallurgy production process,powder metallurgy press has become a hotspot research topic in universities,research institutes and production enterprises at home and abroad. Based on the analysis of the product structure and technology research status of mechanical powder metallurgy press at home and abroad,the design and simulation of mechanical powder metallurgy press structure,pressure transmission"crank-pendulum-slider"mechanism,demoulding position constant mechanism,mechanical handicraft action and intelligent control system were carried out. The design of"crank-pendulum-slider"mechanism makes the press more stable movement,vibration reduction,due to the existence of"dwell zone",which can better ensure the accuracy of the press. The design of the demoulding position constant mechanism can independently control the demoulding action through the drive of the main shaft,so that the demoulding stroke does not need to be readjusted when pressing different products,the operation is convenient,the demoulding position is constant,and the precision of pressed products is high. This design can provide a reference for the design and research of mechanical powder metallurgy press.
As the key equipment for pressing and forming in powder metallurgy production process,powder metallurgy press has become a hotspot research topic in universities,research institutes and production enterprises at home and abroad. Based on the analysis of the product structure and technology research status of mechanical powder metallurgy press at home and abroad,the design and simulation of mechanical powder metallurgy press structure,pressure transmission"crank-pendulum-slider"mechanism,demoulding position constant mechanism,mechanical handicraft action and intelligent control system were carried out. The design of"crank-pendulum-slider"mechanism makes the press more stable movement,vibration reduction,due to the existence of"dwell zone",which can better ensure the accuracy of the press. The design of the demoulding position constant mechanism can independently control the demoulding action through the drive of the main shaft,so that the demoulding stroke does not need to be readjusted when pressing different products,the operation is convenient,the demoulding position is constant,and the precision of pressed products is high. This design can provide a reference for the design and research of mechanical powder metallurgy press.
引文
[1] Paul Beis.粉末冶金零件的粉末成形压机·模架及成形能力发展趋向[J].粉末冶金工业,2011,21(5):12.
[2]曹晓辉,秦亮,沈伏葆.超大型、高精度机械式数控干粉压机应用进展研究[J].企业科技与发展,2013(24):14.
[3]沈福保,许云灿.国内机械式粉末成形压机发展历程及展望[J].机械制造与自动化,2014(3):86.
[4] Kitamura M,Oda Y,Takahashi S. Powder press forming apparatus and method of powder press forming:US,US7056111[P]. 2006-06-06.
[5] Dukler S,Tsygan L,Levin M. Tablet formation system for fully loaded presses:US,WO/2011/014387[P]. 2011-02-03.
[6] Tsuru H. Double step compaction of multi-level parts with electric drive CNC press[J]. Metal Powder Report,1992,47(11):54.
[7]彭涛,李震宇,陈磊.机械式双向全自动粉末成型机:中国,CN202669011U[P]. 2013-01-16.
[8]崔奇,许云灿.偏心滑块式全自动干粉压机:中国,CN2928480[P]. 2007-08-01.
[9]吴洋洋,赵宇,吴洪涛,等.多连杆高速精密压力机:中国,CN202781866U[P]. 2013-03-13.
[10]孙国勋.粉末冶金全自动压机粉末提升装置设计[J].粉末冶金工业,2012,22(4):51.
[2]曹晓辉,秦亮,沈伏葆.超大型、高精度机械式数控干粉压机应用进展研究[J].企业科技与发展,2013(24):14.
[3]沈福保,许云灿.国内机械式粉末成形压机发展历程及展望[J].机械制造与自动化,2014(3):86.
[4] Kitamura M,Oda Y,Takahashi S. Powder press forming apparatus and method of powder press forming:US,US7056111[P]. 2006-06-06.
[5] Dukler S,Tsygan L,Levin M. Tablet formation system for fully loaded presses:US,WO/2011/014387[P]. 2011-02-03.
[6] Tsuru H. Double step compaction of multi-level parts with electric drive CNC press[J]. Metal Powder Report,1992,47(11):54.
[7]彭涛,李震宇,陈磊.机械式双向全自动粉末成型机:中国,CN202669011U[P]. 2013-01-16.
[8]崔奇,许云灿.偏心滑块式全自动干粉压机:中国,CN2928480[P]. 2007-08-01.
[9]吴洋洋,赵宇,吴洪涛,等.多连杆高速精密压力机:中国,CN202781866U[P]. 2013-03-13.
[10]孙国勋.粉末冶金全自动压机粉末提升装置设计[J].粉末冶金工业,2012,22(4):51.