丝杠车床改光杠键槽铣专机进给系统设计【22张图/12000字】【优秀机械毕业设计论文】

文档包括:
说明书一份,37页,12000字左右.
任务书一份.

图纸共22张:
A0-进给系统装配图.dwg
A1-箱体图.dwg
A2-箱盖121.dwg
A3-齿轮104.dwg
A3-齿轮110.dwg
A3-齿轮111.dwg
A3-齿轮115.dwg
A3-齿轮117.dwg
A3-齿轮119.dwg
A3-齿轮-116.dwg
A3-齿轮-122.dwg
A3-皮带轮.dwg
A3-轴105.dwg
A3-轴107.dwg
A3-轴109.dwg
A3-轴112.dwg
A3-轴118.dwg
A3-轴承盖103.dwg
A3-轴承透盖113.dwg
A4-油塞101.dwg
A4-轴套114.dwg
A4-轴套123.dwg

摘要

针对在一般的企业生产实践中经常会遇到对已有的机床进行更专业化改造的问题，进而达到节约成本，提高产品质量的目的。此文系统的阐述了利用原有丝杠车床、床身、床鞍，丝杠进行改光杠键槽铣专机。此键槽铣专机是专为铣长键槽光杠类零件，并可铣各种宽度的键槽。其设计方案主要从总体方案设计、各主要部件技术参数的确定，及其空间的合理布置、传动方案的比较选择、各种典型零件的设计计算、校核、电动机选型等。进给系统作为机床的主要功能系统，对之有较高的运动速度，精度要求。此进给系统主要实现工进与快退的两大基本功能，速度的切换采用电控式、从而避免了停止时铣刀对已加工的表面擦伤。电机仍选用旋转式电机，电机带有电磁制动器。这项机床的改造的具体措施始终遵循着实用性和经济性的原则，进行工厂的内部改造，完全具有可操作性和可行性。

关键词：　机床改造　进给系统　　光杠键槽铣专机　　电磁制器

Abstract

To often can meet and go on specialized problem of transformation to existing lathe among general enterprise production practices, then reach and economize the cost, the purpose to raise product quality. Gentle exposition of system this utilize original leading screw lathe, lathe bed, bed saddle, Guide screw go on change smooth thick stick keyway mill the special plane. Keyway this mill special plane to for mill long keyway mere thick stick part, can mill of different widths keyway specially. Plan of design its mainly from conceptual design, every main part sureness of technical parameter, And space assign rationally, transmission comparative choice, various kinds of typical design calculate, check, motor selecting type,etc. of part of scheme. system as main function system of lathe, have higher sport speed to their, The precision is required. This enter and give system realize worker stock with two major basic functions that retreat soon mainly, To switch over and adopt getting automatically controlled, thus avoid between milling cutter and surface scotch that has process already when stopping speed. The electrical machinery still selects the rotating type electrical machinery for use, the electrical machinery has electromagnetic brakes. This lathe transformation concrete measure is really followed the using and economic principle all the time, Carry on the inside transformation of the factory, totally have effectiveness and feasibility, Invest and produce and operate and examine and have obvious result and economic benefits actually through it.

Keyword: The lathe transforming Enter to the system The mere thick stick keyway mills the special plane Electromagnetic brake

0 引言 1
1 进给系统总体设计方案 3
1.1 机床外形结构(见图1) 3
1.2 主要技术参数　(原始数据) 3
1.3 设计方案的比较 4
1.4进给系统结构的运动简图： 5
2 电动机的选用 7
2.1 电动机选型 7
2.2其额定的功率选择 7
2.3 确定电动机的转速 8
2.4 电磁离合器的选用 8
3 箱体结构的设计 10
3.1加工工艺 10
3.2 箱体尺寸确定（见下图） 10
4 齿轮的设计计算 11
4.1 设计原则 11
４.2 基本参数得计算 11
4.2.1 齿轮设计计算程序（用ＶＢ编的简单的程序实现齿轮的基本参数的电算化） 11
4.2.2 源程序代码程序清单代码为 12
４.3 齿轮的传动设计 15
4.3.1 设计的原则 15
4.3.2 许用应力的计算 16
４.4 齿轮的精度设计 18
4.4.1 选择的原则 18
4.4.2 误差检验组的选择及其公差值得确定 18
4.4.3 计算齿轮副侧隙和确定齿厚极限偏差代号 18
4.4.4 确定齿胚公差及表面粗糙度 20
4.4.5 公法线平均长度极限偏差的换算 21
5 轴与花键轴的设计 22
5.1 轴的最小直径得计算 22
5.2 轴的结构分析及轴上零件的固定 22
5.3 轴（花键轴）的结构分析及其上零件的固定安装 24
5.4 轴的强度校核 25
5.5 轴的刚度校核 31
6 轴承的设计和润滑 34
7 结论 35
致谢 36
参考文献 37