设计描述：

文档包括:

Word说明书1份，共33页，约15000字

CAD版本图纸，共16张

目  录
1 前言 1
1.1 总体设计 1
1.2 本课题拟解决的问题 1
1.3 解决方案及预期效果决方案 2
1.3.1解决方案 2
1.3.2预期效果 3
2 总体概述 4
2.1工艺路线的确定 4
2.2机床配置型式的选择 5
2.3定位基准的选择 5
2.4滑台型式的选择 5
2.5刀具的选择 6
2.6 切削用量 6
2.6.1切削用量的选择 6
2.6.2计算切削力、切削扭矩及切削功率 6
2.6.3确定主轴类型、尺寸、外伸长度 8
2.7 动力部件工作循环及行程的确定 8
2.8 动力部件的选择 9
2.9 三图一卡 9
2.9.1被加工零件工序图 9
2.9.2加工示意图 10
2.9.3机床尺寸联系图 11
3 组合机床主轴箱设计 12
3.1 概述 14
3.2 绘制主轴箱设计原始依据图 14
3.3 主轴结构形式选择及动力计算 16
3.3.1 主轴结构型式选择 16
3.3.2 主轴材料的选择确定 16
3.3.3 主轴的大致尺寸和形状的确定 17
3.3.4 主轴箱的动力计算 17
3.4  主轴箱传动系统的设计与计算 18
3.4.1 主轴的位置分析 18
3.4.2 花键套的确定 18
3.5 主轴前端密封装置的选用 19
3.6 主轴的强度校核计算 19
3.7 主轴支承轴承的选用 20
3.8 主轴轴承 21
3.9 主轴箱润滑系统的设计 21
4 组合机床传动设计 22
4.1 传动方案拟订 22
4.2 同步带类型的确定 23
4.3带轮的设计 24
4.4带轮挡圈选择 25
5．结论 27
参考文献 28
致   谢 29
附   录 30

双孔支架镗铰组合机床刚性镗削头及主轴箱设计
摘要：随着生产的发展和专业化程度的提高，很多企业的产品产量越来越大，精度也越来越高。首先，加工时，同时参加工作的刀具少，限制了机床生产率的提高；其次，在加工多孔的工件时，需要对工件进行多次的定位和夹紧，使零件的加工精度和生产率降低；第三，因为在一台机床上总是加工一种工件，使通用机床的部件和机构造成冗余。因此，为了提高生产效率，满足加工要求，本课题设计了用于加工双筋蹄零件的镗铰组合机床之镗削主轴箱。根据被加工零件确定加工孔的数量、位置、切削用量及主轴类型，拟订了主轴箱的传动方式，应用最优化方法传递功率，削减振动，确定传动参数，设计轴的结构，进行如轴、轴承等相关零件的强度校核计算。通过以上设计，实现了两个双筋蹄零件一次加工完成，较好地达到了设计要求。
关键词：组合机床；镗床；主轴箱
 
The design of the modular machine tool for double rebar and feet parts boring and drilling
Abstract: With the development of industry and improvement of the specialization, the products output of enterprise, is growing, the precision is increased precise high. First, fewer tool in the work at the same time that limiting machine tool productivity; Secondly, it is needed to clamp and position many times in processing that reduce the accuracy and productivity; Third, parts and body of lead to machine tool will lead to redundant if process only one work in some machine tool. Therefore, to improve the machining efficiency and satisfy the processing requirements, the boring headstocks are designed which are used for the unit machine tool, which is used to roughly bore the holes of the double rebar and feet parts. Based on the processed accessory, the number, the position and the machining data of the holes and the form of the principal axis are determined; The driving way of the headstocks are drawn, the power is transmits by the methods of optimization, the driving parameter are determined, the structure of the principal axis are designed and the strength of the parts, such as the strength and the bears, are checked. Trough the design, the four holes of two parts can be finished at one time, and can fulfill the design requirements better.
Key words: unit machine tool; boring machine tool; headstock