文档介绍：内螺纹球阀攻丝机机械部分设计
学生:
指导老师:
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摘要:随着人民生活水平的提高, 内螺纹球阀的使用量正逐年上升。本课题是为中小企业研究一种新型的内螺纹球阀攻丝机,以求克服了以住车床、钻床或手动攻丝的局限和不足,提高内螺纹球阀攻丝机加工的精度和生产效率,而且结构简单,容易操作。内螺纹球阀攻丝机是专用螺纹孔加工设备,攻丝机由床身、攻丝头、传动系统、夹具等组成,本设计主要内容是内螺纹球阀攻丝机的机械部分设计,主要对攻丝过程进行加工工艺分析,对攻丝机的机械部分进行总体方案设计、攻丝机的夹具、传动系统进行选型和详细的计算和结构设计等。
关键词:攻丝机;内螺纹球阀;靠模装置;夹具设计;
The Design on Mechanical Part of Internal Thread Ball Valve Tapping Machine
Student:Leng Dong
Tutor:Xiang Yang
Abstract:Along with the advancement of science and technology the ball valve's use is year after year continues to climb in. This topic is for small and medium-sized enterprise research a new type of threaded ball valve tapping machine, in order to e in order to live lathe, drilling or manual tapping limitations and the insufficiency, improve threaded ball valve tapping machining precision and production efficiency, but also simple structure, easy to operate. Threaded ball valve tapping machine is special threaded hole processing equipment, tapping machines by lathe bed, tapping head, transmission system, fixture and ponents, this design main content is threaded ball valve tapping machine mechanical parts design, main processing tapping process analysis, tapping machine mechanical parts in overall scheme design, tapping machine fixture, transmission system for selection and detailed calculation and structure design, etc
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Keywords:Tapping machine; threaded ball valve; modeling device; fixture design
1 前言
攻丝机的原理及类型
攻丝机是一种在机件壳体、设备端面、螺母、法兰盘等各种具有不同规格的通孔或盲孔的零件的孔的内侧面加工出内螺纹、螺丝或叫牙扣的机械加工设备。攻丝机也叫攻牙机、螺纹攻牙机、螺纹攻丝机、自动攻丝机等。根据驱动动力种类的不同,攻丝机可以分为手动攻丝机、气动攻丝机、电动攻丝机和液压攻丝机等;根据攻丝机主轴数目不同,可分为单轴攻丝机、二轴攻丝机、四轴攻丝机、六轴攻丝机、多轴攻丝机等;根据加工零件种类不同,攻丝机又可分为模内攻丝机、万能攻丝机、热打螺母攻丝机、法兰螺母攻丝机、圆螺母攻丝机、六角螺母攻丝机、盲孔螺母攻丝机、防盗螺母攻丝机等多种型号;根据攻丝机加工过程的自动化程度不同,攻丝机可分为全自动攻丝机、半自动攻丝机和手动攻丝机等;根据攻丝机攻牙时是否同时钻孔,攻丝机又分钻孔攻丝机、扩孔攻丝机等。全自动攻丝机自动化程度最高,工作时,只要把零件毛坯放入料斗中即可自动进料,自动定位,自动夹紧,自动攻牙、自动卸料,一个工人可以同时操作多台设备,生产效率高,可显著节约劳动力成本!优质攻丝机具有设计新颖、结构合理、简便易用、自动化程度高、使用方便、效率高、免维护、性价比极高等特点,优质的螺母攻丝机加工出的各种螺母螺纹光洁度