角形轴承箱A2
摘要
角形轴承箱零件的主要加工表面为孔和槽以及各表面。端面加工和直角面加工根据精度要要求可选择铣削。孔加工方法的选择比较复杂,需要考虑零件的结构特点、长径比、孔径大孝精度和粗糙度要求以及生产规模来确定镗或者钻。对于精度要求较高的孔往往还需要采用几种不同的方法顺次进行加工。
零件的加工工艺分析及夹具设计,在机械加工中占有非常重要的地位,零件工艺编制得是否合理,这直接关系到零件最终是否可以达到质量要求;夹具的设计也是不可或缺的一部分,它关系到能否提高其加工效率的问题。因此这两者在机械加工行业中是至关重要的环节。
要设计此零件的加工工艺,首先是零件的分析;其次是确定毛坯的制造形式以及制订工艺路线,翻阅《切削余量手册》,确定机械加工余量、工序尺寸、毛坯尺寸、切削用量及基本工时的确定。专用夹具的设计,首先要想好设计方案,找准定位面及各个定位元件所限制的自由度。翻阅《夹具设计手册》及《机械制造工艺手册》确定各个夹具体零件的具体尺寸。
关键词:工艺;夹具;夹紧;定位
ABSTRACT
The main machined surfaces of the angular bearing box parts are the holes and grooves aswell as the surfaces. Face machining and right angle machining are available according to the accuracy requirements. The choice of hole processing methods is more complex, need to consider the structural characteristics of parts, aspect ratio, pore size, accuracy and roughness requirements and production scale and other factors. For holeswith high accuracy, it is often necessary to use several different methods to process sequentially.
Is the components craft establishment, holds thevery important status in the machine-finishing, the components craft establishes reasonable,whether do this direct relation components achieve the quality requirement finally; Jig's design is also an essential part,whether does it relate raises its processing efficiency the question. Therefore this both in the machine-finishing profession are the important links.
To design parts of this processing, the first parts of the analysis; secondly, to determine the blank forms and the development of manufacturing process line, read"Cutting cushion manual," setting machinery allowance, processes size, rough size, cutting parameters and the basic hours ofwork identified. Special fixture design, the design must first consider good programs, pinpoint positioning face and positioning components of thevarious restrictions of freedom. Read"Fixture Design Manual" and"Machinery Manufacturing Technology Handbook" establish specific folder size of the specific components.
Keywords : Process;Fixture;Synchronizing;Location
目录
摘要i
ABSTRACT ii
第一章绪论- 1-
1.1理论与实际意义- 1-
1.2国内外文献综述- 1-
1.3课题来源及主要研究内容- 1-
第二章零件的分析- 3-
2.1零件的作用- 3-
2.2技术要求分析- 3-
2.3零件的结构工艺性分析- 4-
2.4生产纲领的确定- 4-
第三章毛坯的选择- 5-
3.1铸件尺寸公差- 5-
3.2铸件机械加工余量- 5-
3.3毛坯图- 6-
3.4毛坯的技术要求- 7-
第四章工艺规程设计- 8-
4.1选择定位基准- 8-
4.1.1粗基准的选择- 8-
4.1.2精基准的选择- 8-
4.2零件表面加工方法的选择- 8-
4.3制定工艺路线- 9-
4.4选择加工设备与工艺装备- 10-
4.5机械加工余量、工序尺寸的确定- 11-
第五章确立切削用量及基本工时- 13-
第六章专用夹具设计- 32-
6.1钻2-φ25的孔夹具设计- 32-
6.2夹具设计任务- 32-
6.3定位基准的选择- 32-
6.4定位误差的分析- 32-
6.5切削力及夹紧力的计算- 33-
6.6夹紧装置的设计- 34-
6.7导向方案及导向元件的选择和设计- 35-
6.8夹具设计及操作的简要说明- 35-
6.9本章小结- 35-
第七章结论- 37-
参考文献- 38-
致谢- 39-
钻2X25孔夹具装配图A0
毛坯图A2
中心轴
中心轴1
自制挡块
自制压板
钻2X25孔夹具体A1
钻模板
加工过程卡
夹具设计部分
设计目录
设计所包含文件
摘要部分
字数统计
工序卡