设计简介
摘 要
本文是对ZT003支架零件加工应用及加工的工艺性分析，主要包括对零件图的分析、毛坯的选择、零件的装夹、工艺路线的制订、刀具的选择、切削用量的确定、加工工艺文件的填写。选择正确的加工方法，设计合理的加工工艺过程。此外还对ZT003支架零件的一道工序的加工设计了专用夹具.
机床夹具的种类很多，其中，使用范围最广的通用夹具，规格尺寸多已标准化，并且有专业的工厂进行生产。而广泛用于批量生产，专为某工件加工工序服务的专用夹具，则需要各制造厂根据工件加工工艺自行设计制造。本论文夹具设计的主要内容是设计ZT003支架钻床夹具设计。
关键词：ZT003支架零件，工艺，工序，切削用量，夹紧，定位，误差
本文是对ZT003支架零件加工应用及加工的工艺性分析，主要包括对零件图的分析、毛坯的选择、零件的装夹、工艺路线的制订、刀具的选择、切削用量的确定、加工工艺文件的填写。选择正确的加工方法，设计合理的加工工艺过程。此外还对ZT003支架零件的一道工序的加工设计了专用夹具.
机床夹具的种类很多，其中，使用范围最广的通用夹具，规格尺寸多已标准化，并且有专业的工厂进行生产。而广泛用于批量生产，专为某工件加工工序服务的专用夹具，则需要各制造厂根据工件加工工艺自行设计制造。本论文夹具设计的主要内容是设计ZT003支架钻床夹具设计。
关键词：ZT003支架零件，工艺，工序，切削用量，夹紧，定位，误差
Abstract
This paper is the analysis of technology of ZT003 bracket machining application and processing, mainly including the parts diagram analysis, the choice of blank, parts of the clamping, the craft route formulation, tool selection, the determination of cutting conditions, process documents. Choose the correct methods for processing, processing process design reasonable. In addition, processing of a procedure of ZT003支架 parts of the design of the fixture.
Many types of machine tool fixture, wherein, universal fixture used the most widely, size has been standardized, and professional factory production. But widely uses in the volume production, specially for a special fixture workpiece machining process service, then needs various manufacturing plant according to the workpiece processing technology to design and manufacture. The main content of this paper is the design of drilling jig fixture design ZT003 bracket design.
Keywords: parts, process, procedure, cutting, clamping, positioning
This paper is the analysis of technology of ZT003 bracket machining application and processing, mainly including the parts diagram analysis, the choice of blank, parts of the clamping, the craft route formulation, tool selection, the determination of cutting conditions, process documents. Choose the correct methods for processing, processing process design reasonable. In addition, processing of a procedure of ZT003支架 parts of the design of the fixture.
Many types of machine tool fixture, wherein, universal fixture used the most widely, size has been standardized, and professional factory production. But widely uses in the volume production, specially for a special fixture workpiece machining process service, then needs various manufacturing plant according to the workpiece processing technology to design and manufacture. The main content of this paper is the design of drilling jig fixture design ZT003 bracket design.
Keywords: parts, process, procedure, cutting, clamping, positioning
目录
摘 要··········································································································· I
Abstract········································································································· II
1 绪论··········································································································· 1
1.1机械加工工艺流程··········································································· 1
1.2夹具概述························································································· 2
1.3机床夹具的功能·············································································· 3
1.4机床夹具的发展趋势······································································· 4
2 加工工艺规程设计···················································································· 5
2.1 零件的分析···················································································· 5
2.1.1 零件的作用··············································································· 5
2.1.2 零件的工艺分析········································································· 5
2.2 ZT003支架加工的主要问题和工艺过程设计所应采取的相应措施··· 6
2.2.1 孔和平面的加工顺序··································································· 6
2.2.2加工方案选择············································································· 6
2.3 ZT003支架加工定位基准的选择····················································· 7
2.3.1 粗基准的选择············································································ 7
2.3.2 精基准的选择············································································ 7
2.4 ZT003支架加工主要工序安排························································· 7
2.5 机械加工余量、工序尺寸及毛坯尺寸的确定·································· 9
2.6确定切削用量及基本工时（机动时间）········································· 10
2.7 时间定额计算及生产安排····························································· 15
3 钻ø12孔床夹具设计············································································· 18
3.1 夹具的设计··················································································· 18
3.1.1 定位分析················································································· 18
3.1.2 定位原理················································································· 18
3.1.3 定位元件的分析······································································· 19
3.1.4 夹紧元件的选择······································································· 19
3.1.5定位误差的分析········································································ 20
3.1.6切削力及夹紧力的计算······························································· 21
3.2 夹具设计及操作的简要说明························································· 22
结 论··········································································································· 23
参考文献······································································································ 24
致 谢······································································································ 25
