基于单片机控制的便携式电火花打孔机的设计
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摘要
针对现有的便携式电火花打孔机质量太大、加工效率低等问题,在分析总结了现有的便携式电火花打孔机研究现状的基础上,提出了一种滑块静止而导轨运动的执行机构设计方案。基于单片机,研究了直接利用RC比较电路以简化放电回路的方法,使用了千分表座作为便携式电火花打孔机的底座以调整打孔面,制作出的便携式电火花打孔机重量减轻至10 kg以内,测得材料去除率达到了15 mm~3/min以上,且打孔面易于调整。设计结果表明:所优化的执行机构、放电回路、打孔面调整装置减轻了便携式电火花打孔机的重量,提高了加工效率,且工作稳定。
Aiming at weight and efficiency problems of portable EDM drilling machine, the research status of EDM drilling machine were analyzed and summarized, a design plan that keep the slider stay to let guideway movement was put forward. The way that single chip microcomputer directly take the advantages of RC comparison circuit to simplify discharge circuit was studied, micrometer pedestal was used as a base of portable EDM drilling machine to adjust the perforated surface. The weight of portable EDM drilling was made reduce to less than 10 kg, tested data showed the material removal rate up to 15 mm~3/min, and perforated surface easy to adjust. The results indicate that the optimized actuator, discharge circuit and perforated surface adjustment device reduce the weight of portable EDM drilling machine, improve working efficiency, the work is stable.
Aiming at weight and efficiency problems of portable EDM drilling machine, the research status of EDM drilling machine were analyzed and summarized, a design plan that keep the slider stay to let guideway movement was put forward. The way that single chip microcomputer directly take the advantages of RC comparison circuit to simplify discharge circuit was studied, micrometer pedestal was used as a base of portable EDM drilling machine to adjust the perforated surface. The weight of portable EDM drilling was made reduce to less than 10 kg, tested data showed the material removal rate up to 15 mm~3/min, and perforated surface easy to adjust. The results indicate that the optimized actuator, discharge circuit and perforated surface adjustment device reduce the weight of portable EDM drilling machine, improve working efficiency, the work is stable.
引文
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[3] 颜国正,赵国光,余承业.便携式电火花穿孔机性能研究[J].航空制造技术,1996(3):32-34.
[4] 第十三届中国国际模展评定评述专家组.第十三届中国国际模具技术和设备展览会现代模具制造技术及设备评述[J].模具工业,2010,36(11):1-10.
[5] 刘向前,刘永乐.便携式电火花机在风电制动钳通油孔加工中的应用[J].金属加工:冷加工,2014(7):71-72.
[6] 王彤,张广志.电火花间隙放电状态检测方法综述[J].哈尔滨理工大学学报,2012,17(3):100-104.
[7] 俞晓.便携式电火花取断丝锥机[P].中国:CN 302527161 S,2013.
[8] 刘向前,张少波,丁向阳.Portable electric spark machine guiding device[P].中国:CN 203526739 U,2014.
[9] 丁向阳,张少波.Portable type spark-erosion drilling machine[P].中国:CN 103878459 A,2014.
[10] 刘晋春,韦东波,自鹏翰,等.便携式、多功能、模块化、小型数控电火花加工机床系列的开发研制[J].电加工与模具,2015(6):55-58.
[11] WANG Xue-tao. Design of portable EDM machine tool[C].International Symposium on Knowledge Acquisition and Modeling,New York:IEEE,2015.
[12] 邹纯,祝锡晶,崔学良,等.工件超声振动对不同放电间隙电火花加工的影响[J].科学技术与工程,2018,18(1):222