设计描述:
文档包括:
Word说明书一份,共50页,约16000字
CAD版本图纸,共7张:
摘 要
应用多工位机床加工大批量零件,快捷高效,是机械加工的发展方向。本次设计的四工位专用机床主要用于机械零件的钻孔,是在四个工位上分别完成相应的装卸工件、钻孔、扩孔、铰孔工作。它的执行机构有两个:一是装有四工位工件的回转工作台,二是装有专用电动机带动的三把刀具的主轴箱。主轴箱每向左移动送进一次,在四个工位上分别完成相应的装卸工件、钻孔、扩孔、铰孔工作。当主轴箱右移退回到刀具离开工件后,工作台回转90度,然后主轴箱再次左移。四次工作循环后完成装 、钻、扩、铰、卸等工序。一个循环就有一个工件完成上述全部工序。本机床适用于中小型大批量生产零件的工厂企业,可以加工直径在26mm以下的孔,可加工的零件的最大直径为120mm。本设计说明书对电动机的选择、各零部件的设计计算校核及刀具的选择安装进行了详细的阐述。
关键词:四工位;专用机床;回转工作台;主轴箱;钻孔;扩孔;铰孔
Abstract
The development direction of maching is to improve the efficienly of maching by applying the multi-locations machine tool. The corresponding and unloading workpiece,the drilling hole,the broahing and the reaming can be finfished in four locations separately. It has two actuating mechanisms: One is rotary table with four locations work piece; the other is headstock with three cutters driven by the special electric motor. The headstock moves towards left each time and the machine tool will complete the corresponding loading and unloading work piece, the drilling hole, the broaching and reaming separately in four locations. After the headstock returns towards right to make the cutter leave the work piece, the work table rotates 90 degrees, then the headstock shifts towards left once more. After four operating cycles, loading, drilling, broaching, reaming and unloading are achieved. In a circulation, a work piece will complete the above working procedure. This machine tool is suitable for the middle and small scale mass production enterprise, may process the hole with diameter below the 26mm, and may process components with most large 120mm diameter. In this design instruction book selection of the electric motor, design calculation and examination of various parts and selection and installment of the cutter have been expatiated.
Keywords: Four locations; Special machine; Rotary table; Headstock;Drill hole; Broahing; Reaming
目 录
第1章 绪论 1
1.1 组合机床的发展与现状 1
1.2 机床的作用与分类 1
1.3 本课题的研究方向 2
1.4 本课题的任务要求 3
第2章 总体方案的设计 4
2.1 本课题的设计要求 4
2.2 总体方案的确定 4
第3章 传动系统的设计 8
3.1 电动机1的选择 8
3.2 V带及带轮的设计 9
3.3 减速带轮的设计 11
3.4 变速传动轴承 11
3.5 齿轮的设计 14
3.6 移动推杆圆柱凸轮机构设计 25
3.7 轴的设计与校核 26
3.8 回转工作台的技术参数的确定 33
第4章 进给系统的设计 34
4.1 电动机2的选择 34
4.2 确定各传动机构的传动比 34
4.3 计算各轴功率 34
4.4 齿轮的结构设计 34
第5章 刀具的选择与安装 44
第6章 多轴箱的设计 45
6.1 确定多轴箱轮廓尺寸 45
6.2 主轴箱的原始依据图 46
6.3 主轴结构型式的选择及动力计算 46
结论 48
致谢 49
参考文献 50
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