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机械类毕业设计说明书范例

机械类毕业设计说明书范例
机械类毕业设计说明书范例

浙江工贸职业技术学院

毕业设计(论文)课题名称:水路模块主阀体的加工工艺及编程

系部:汽车与机电工程系

专业:数控技术

班级:数控0601

姓名:陈孙立

学号: 06124120

指导教师:韦志钢

教师职称:高级工程师

完成时间 2009 年 4 月 23 日

目录

1、零件分析 (1)

1.1零件作用(产品简介) (1)

1.2零件的工艺分析 (2)

2、确定生产类型 (2)

3、确定毛胚 (2)

3.1确定毛胚种类 (2)

3.2确定锻件加工余量及形状 (3)

3.3绘制锻模零件图 (3)

4、工艺规程设计 (3)

4.1选择定位基准 (3)

4.2制定工艺路线 (3)

4.2.1 工序的划分 (4)

4.2.2 切削加工顺序的安排 (4)

5、切削用量的选择 (7)

6、夹具介绍及设计 (9)

6.1夹具的选择要求 (9)

6.2问题的提出 (10)

6.3夹具的设计 (11)

6.4夹具的加工 (11)

6.5夹具操作的简要说明 (11)

6.6螺纹心轴夹具的装配图 (11)

7、刀具的选择及成形刀介绍 (12)

7.1结构分析 (13)

7.2刀具的设计 (14)

7.3刀具的加工 (14)

8、量具的选择及量规的设计 (14)

8.1量规的设计原则及其结构 (15)

8.2量规的技术要求 (15)

8.3量规工作尺寸的计算 (16)

设计小结 (19)

参考文献 (20)

水路模块主阀体的加工工艺及编程

陈孙立

浙江工贸职业技术学院汽机系,班级:数控0601

摘要:本课题针对水路模块主阀体的机械加工工艺进行设计计算,根据其工艺的要求和加工工艺的可行性,根据具体的生产条件选用最适当的加工方法,制定出最佳的加工工艺路线,加工出符合图样技术要求的零件,并获得最好的经济效益。填写加工工艺工序卡片并进行数控编程,进行加工。同时还简单的介绍和设计了专用夹具、刀具和量具,结合社会实践,最终达到本课题要求。

关键词:阀体;车加工;加工工艺;编程

水路模块主阀体属于浙江春晖智能有限公司生产的燃气壁挂炉水路控制系统中的水路控制阀组的A阀体,是本人在春晖外协工厂——上虞五金仪器厂实习两个月间的工作零件,由于课题来源于实践,加工工艺设计比较典型,也有重要的实际意义。

本文以培养“专而博”的知识结构为出发点,简述了数控专业学生应该具备的职业技能,并以水路摸块主阀体的工艺分析及加工为例阐述的数控加工的方法。机械零件加工的工艺分析与编程部分,是这次零件加工对我们加工零件综合工艺分析及加工的可行性和编程理论知识和技能水平的综合考察,也是我们对所学内容的一次深入综合性链接,它在我们大学生活中占有十分重要的地位,通过这次亲身适应性的实践,锻炼自己分析问题的能力,为以后的进一步深造打下一个良好的基础。

1、零件的分析

1.1 零件的作用(产品的简介)

壁挂炉是一种以燃气为主要能源,提供温暖舒适的居家供暖及生活热水的家用设备,它可以接驳散热片、地暖和风机盘管等多种散热系统,也可以安装在厨房、阳台、地下室或阁楼内。

壁挂炉技术诞生于欧洲,自第一台壁挂炉推向欧洲市场之时,它的舒适性、节能性和环保性受到了欧洲消费者的极大赞赏和欢迎。经过半个多世纪的发展,欧洲壁挂炉技术已处于世界领先水平,壁挂炉也成为了欧洲家庭的必备采暖设备。

壁挂炉采暖具有强大的家庭中央供暖功能,能满足多居室的采暖需求,各个房间能够根据需求随意设定舒适温度,也可根据需要决定某个房间单独关闭供暖,并且能够提供大流量恒温卫生热水,供家庭沐浴、厨房等场所使用。同时可以外接室内温度控制器,以实现个性化温度调节和达到节能的目的。

表1 产品要求

产品代号WV20-A, 与c阀配合形成水路控制阀组。如图所示:

图1 产品实物

1.2 零件的工艺分析

零件的材料为Hpb59-1,黄铜具有较好的机械性能和物理性能,以及良好的冷、热加工性能和切削性能,且价格低廉,因而广泛地应用于仪器仪表、电子、电器、日用五金、饮用水系统等领域,尤以HPb59—1用量最大,铅黄铜(HPb59—1),铜含量在57-60,铅0.8-1.9,锌余量,杂质1左右,布氏硬度149HB(硬的)

由上面分析可知,可以先加工Φ36圆柱以及与此孔相通的Φ34圆柱,然后以此作

孔和孔口平面及为基准采用专用夹具内阀口Φ45进行加工,然后以用加工的Φ4515.0

侧面共同定位,加工其他加工面,并且保证位置精度要求。再根据各加工方法的经济精度及机床所能达到的位置精度,并且此阀体零件没有复杂的加工曲面,所以根据上述技术要求采用常规的加工工艺均可保证。

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utilization (空一行) room places the furniture, the decoration goods or the daily life thing all have the color. Therefore must carry on the unification to them, enables them to carry on the slight change in the identical tone, achieves the harmonious effect. The color utilization can receive human's age, the sex and so on each kind of factor influence, but human's psychological feeling and the association and the color relational question also is closely linked.The color also can create the different sense of space, each room is all impossible alone to have one kind of tone, the different region is dissimilar to the color request. When room arrangement should choose suitably “joyful” the color, can be helpful after gets off work gets in the home to relax the tense nerve, thought the relaxation is comfortable.The different room function is different, the color should not be same; Is the same function room, like is similarly the living difference differently. (空一格) Color ;Space ;

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[副导师姓名][职称]XXXX年XX月XX日

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