机械5

连杆螺栓孔钻孔夹具及多轴箱设计【气动夹具】 摘要 在机械制造各行业的工艺过程中广泛应用着各种不同的，用以固定加工对象，使之占有正确位置，以便接受施工的一种工艺装备，统称为夹具。因此，无论是在机械加工，装配，检验，还是在焊接，热处理等冷，热工艺中，以及运输工作中都大量采用夹具。但在机械加工中应用最为广泛的是金属切削机床上使用的夹具，我们称其为机床夹具。它在保证产品优质，高产，低成本，充分发挥现有设备的潜力，以便工人掌握复杂或精密零件加工技术，以减轻繁重的体力劳动等诸方面起着巨大的作用。因此，机床夹具的设计和使用是促进生产迅速发展的重要工艺措施之一。为此，在本次设计时，选择了机床夹具设计。 本文主要围绕机床钻孔夹具设计为中心。用以钻连杆零件，首先通过参观实习让我们对夹具设计有了初步的了解，特别是对钻模夹具设计的了解更为深刻。然后，在导师的指导下，对夹具设计方案进行分析和选择。选定方案后，。通过查阅相关夹具设计书籍和相关图例在钻孔夹具设计过程中，。在查阅了相关文献后完成外文翻译。参考相关资料完成夹具的总体设计。 此次设计为连杆钻孔多轴箱的机械设计。设计主要介绍了钻孔多轴箱的设计原理、调整方法及设计计算过程。通过预先给定的加工要求可确定所需的计算参数，进而依据可调立式钻孔多轴箱的设计原理来设计计算并校核各个部位的零件，然后进行组装。本次设计可从五大方面进行设计。通过预先给定的加工要求计算并进行了双头钻头的设计、传动系统减速箱的设计、传动系统电机的选用、可以保证较高的加工精度和孔间相对位置精度。 关键词：气动夹具；电动机；变速箱； Co
n
necti
ng rod bolt-hole drilli
ng jig a
nd multi-axle p
neumatic clamp desig
n Abstract I
n the process machi
nery ma
nufacturi
ng i
ndustries arewidely used i
n avariety of differe
nt, to fix the object to be processed so that it occupies a correct positio
n i
n order to receive a co
nstructio
n of process equipme
nt, collectively referred to as fixtures. Therefore,whether i
n machi
ni
ng, assembly, i
nspectio
n, orweldi
ng, heat treatme
nt, cold a
nd hot processes, aswell as exte
nsive use of tra
nsportwork i
n both fixtures. But i
n machi
ni
ng the mostwidely used is the fixture for use o
n metal-cutti
ng machi
ne tools, jigs a
nd fixtureswe call it. It is to e
nsure product quality, highyield, low cost, the full pote
ntial of existi
ng equipme
nt i
n order to grasp the complexity ofworkers or precisio
n parts processi
ng tech
niques to reduce the heavy ma
nual labor a
nd other aspects play a huge role. Therefore, the desig
n a
nd use of jigs a
nd fixtures is o
ne of the importa
nt tech
nical measures to promote the rapid developme
nt of productio
n. For this reaso
n, i
n this graduatio
n project, select the tool fixture desig
n. I
n this paper, the machi
ne drilli
ng fixture desig
n arou
nd the ce
nter. For drill rod parts, first byvisiti
ng fixture desig
n expertise allows us to have a prelimi
nary u
ndersta
ndi
ng, especially u
ndersta
ndi
ng the jig fixture desig
n is more profou
nd. The
n, u
nder the guida
nce of i
nstructors, for fixture desig
n a
nalysis a
nd selectio
n. After selecti
ng the program. Through access to releva
nt books a
nd related fixture desig
n lege
nd i
n drilli
ng fixture desig
n process. Access to the releva
nt literature i
n foreig
n la
nguage tra
nslatio
n is completed. Refere
nces releva
nt i
nformatio
n to complete the overall desig
n fixture. The desig
n of multi-axle drilli
ng rod mecha
nical desig
n. Desig
n i
ntroduces the drilli
ng of multi-axle box desig
n pri
nciples, methods a
nd desig
n adjustme
nt calculatio
n. By processi
ng requireme
nts give
n i
n adva
nce to determi
ne the parameters required for the calculatio
n, a
nd the
n based o
n adjustablevertical drilli
ng multi-axle box desig
n pri
nciples to desig
n calculatio
ns a
nd check all parts of the parts, the
n assembled. This desig
n ca
n be desig
ned from five aspects. By pre-processi
ng requireme
nts of a give
n calculatio
n a
nd desig
n of the double-headed drill, drive trai
n gearbox desig
n, selectio
n of the motor drive system, e
nsuri
ng both high precisio
n a
nd accuracy of the relative positio
n of the hole. Keywords: p
neumatic clamps; motor; gearbox; 目录 1前言1 1.1本课题的背景和研究意义1 1.3钻床的发展趋势2 1.4钻床夹具的概述2 1.5本课题解决的问题和设计时主要的工作3 2连杆组合机床结构设计的总体方案4 2.1钻床总体结构4 2.2设计方案选择4 3连杆多轴箱的设计7 3.1预选加工材料，加工直径8 3.2计算高速钢麻花钻轴向切削力及扭矩8 3.2.1计算单个钻头轴向切削力8 3.2.2计算单个钻头扭矩9 3.3钻头中各轴及齿轮的计算10 3.3.1齿轮8、9、10、11的计算10 3.3.2齿轮5、6、7的计算14 3.4双头钻头内各轴的设计16 3.4.1计算轴I、VIII的最小直径16 3.4.2计算轴II、VII的最小直径16 3.4.3计算轴III的最小直径16 4传动系统减速设计18 4.1减速箱内各齿轮设计18 4.1.1传动系统减速箱齿轮、的设计18 4.1.2传动系统减速箱齿轮、的设计19 4.2双头钻头内各轴的设计19 4.2.1计算轴III的最小直径19 4.2.2计算轴IV的最小直径19 4.2.3计算轴V的最小直径20 4.2.4计算轴VI的最小直径20 5传动系统电机的选用21 6工件的夹紧计算及其选择22 6.1工件的夹紧22 6.1.1夹紧基本原理理论22 6.1.2夹紧座23 6.1.3夹紧压板23 6.1.4夹紧螺钉24 6.2夹紧力的选择24 6.2.1夹紧力方向24 6.2.2夹紧力的作用点25 6.2.3夹紧力的计算25 6.3气缸的选型计算26 6.3.1气缸的直径确定27 6.3.2气缸的选型28 6.3.3夹具精度计算与分析29 7夹具结构分析与设计31 7.1夹具的夹紧装置和定位装置31 7.2夹具的导向32 7.3钻孔与工件之间的切屑间隙35 7.4钻模板36 7.5定位误差的分析36 7.6确定夹具体结构和总体结构37 结论38 致谢39 参考文献40