2105泵体多轴钻床设计.rar

2105泵体多轴钻床设计

【摘要】根据厂里现有自制的2105机油泵体九孔钻专机的工作原理，传动系统机械结构，在只有少部分维修用测绘零件图纸外，没有任何其他的图纸资料和对专机不便拆卸观看测量箱体内部装配关系、零件尺寸的情况下，重新设计一台新的只钻泵体平面六孔的专机。本机床的工作进给是通过两凸轮的转速差来实现的，快速退回是通过凸轮的急回特性和弹簧作用来实现的。该装置的结构简单，制造周期短，能进行各种加工，加工时传动平稳性好、排屑快、效率高，能较好的完成2105泵体上的六孔加工工步。本机床还通过改变减速箱的结构和箱内齿轮配合关系，从而通过加工其他的平面孔工件也可通过其来完成攻丝工步。                    本课题设计的机床是为加工2105泵体平面上的六孔（2-M6和4-φ9）而设计的多轴钻孔专机，其的工作原理是：
1.刀具的旋转运动
刀具的旋转运动是通过皮带，花键传动和齿轮变速直接驱动钻头作旋转运动，通过变速箱获得相应的切削速度。从而可加工不同孔径的孔。
2.刀具的进给运动
刀具的进给运动是通过变速箱里的齿轮转动，使得与齿轮联接的螺旋凸轮转速慢于主轴联接的螺旋凸轮。这样使慢的凸轮推动快的凸轮前进，使钻头完成进给运动，其进给速度为两凸轮转速差的行程。
本机床的工作进给是通过两凸轮的转速差来实现的。快速退回是通过凸轮的急回特性和弹簧作用来实现的。该装置结构简单，制造周期短，能进行各种加工，加工时，传动平稳性较好，排屑快；效率高，能较好地完成该2105泵体上的六孔加工工步。刀具的进给运动是通过变速箱里的齿轮转动，使得与齿轮联接的螺旋凸轮转速慢于主轴联接的螺旋凸轮。这样使慢的凸轮推动快的凸轮前进，使钻头完成进给运动，其进给速度为两凸轮转速差的行程。
本机床的工作进给是通过两凸轮的转速差来实现的。快速退回是通过凸轮的急回特性和弹簧作用来实现的。该装置结构简单，制造周期短，能进行各种加工，加工时，传动平稳性较好，排屑快；效率高，能较好地完成该2105泵体上的六孔加工工步。

【关键词】：凸轮；减速箱；专机；六孔

Pump body 2105 multiracial drilling machine design
           
［abstract］according to existing homemade 2105 machine factory in the pump body nine drill machine working principle, structure, mechanical transmission system of surveying and mapping in only a few maintenance with drawings, without any other drawings and special inconvenience to remove the assembly relation watch measuring the size and the circumstances, to design a new only six hole drilling pump body special plane. This machine to work into two CAM is through the rotation difference, quick return CAM rush through to characteristic and function to realize spring, The device manufacturing cycle is short, simple in structure, and can perform various, processing and transmission stability scraps discharge, high efficiency, fast can better finish on pump body of six 2105 hole processing work. This machine also by changing the structure and reducer gear box, and the relationship with other flat face through processing of work piece can also be accomplished by tapping the work the subject of design for the processing machine 2105 tin pump body plane (2-M6, and 4-φ9) designed for multi-axis drilling jet, and its working principle is:
1. cutting tool rotary motions
The cutting tool rotary motion is through the leather belt, the spline transmission and the gear changing direct drive drill bit makes the rotary motion, obtains the corresponding cutting speed through the gear box.Thus may process the different aperture the hole.
2. cutting tool feed motions
The cutting tool feed motion is through the gear box in gear-driven, causes with the gear coupling spiral cam rotational speed slowly the spiral cam which joins in the main axle.Like this causes the slow cam to impel the quick cam advance, causes the drill bit to complete the feed motion, its feed rate is two cam rotational speed difference traveling schedule.
This engine bed work feed is realizes through two cam rotational speed difference.Returns is fast comes back promptly the characteristic and the spring function through the cam realizes.This equipment structure is simple, the manufacture cycle is short, when can carry on each kind of processing, the processing, the transmission stability is good, the escape of chips is quick; The efficiency is high, can complete on this 2105 pump bodies six to process the labor step well.

［Keywords］：cam；reduction gearbox；special machine；Six holes

2105泵体多轴钻床设计 …………………………….0
前言 6
第1章  绪论 7
第2章 设计前的准备及要求 8
第3章 电动机、皮带的选择 9
3.1 电动机的选择 9
3.2 带轮和皮带的选择 10
3.3 选择V带型号 11
3.4 确定带轮的基准直径 11
3.5 验算带速 11
3.6 确定带的基准长度和实际中心距 11
3.7检验小带轮包角 12
3.8确定V带的根数 12
3.9 求初拉力及带轮轴上的压力 12
3.10 带轮结构设计 12
第四章  齿轮的设计 14
4.1 齿轮模数的确定 14
4.2 确定传动比 14
4.3 确定齿轮的齿数及有关尺寸计算 15
4.4 齿轮的校核 18
4.5 验算齿轮的圆周速度 20
第5章   轴的设计 22
5.1 选择轴的材料，确定许用应力 22
5.2  按扭转强度估算轴径 22
5.3 设计轴的结构并绘制结构草图 22
5.4 按弯曲合成强度校核轴径 23
5.5 求合成弯矩并做出合成弯矩图 25
5.6 求当量弯矩 25
5.7 确定危险截面及其强度的校核 26
第6章 轴承和键的选择 27
6.1 轴承的选择 27
6.2 轴承的验算 27
6.3 键的选择 29
6.4 键的校核 29
第7章  工件的定位、加紧及进给系统 30
7.1 工件的定位 30
7.2 工件的加紧 31
7.3 机床的进给系统设计 31
第8章 专机总体设计 32
8.1 机床的启动、进给、退回 32
8.2 弹簧和行程开关碰块的调整 32
8.3 钻头的安装 32
8.4 机床的润滑 32
8.5 机床电气控制图 33
8.6 本机床的传动系统 33
8.7 轴承的安装 33
8.8 键的联接 33
8.9 箱体、支柱的结构设计 34
第9章  设计总结 35
参考文献： 36