机械5

XZ280龙门铣走刀箱减速箱部分设计 摘要 机械加工行业中，铣床是其中的支柱产品，各种机械装备中的大小零件，几乎会有铣削加工的工序在里面，从改革开放以来，我们国家大量引进国外先进生产经验，配合国内市场需求，设计制造了大量新型的机床产品，其中铣床占了相当一部分，随着科技的发展，我国经济水平也迅速发展。铣床工业在国民经济中的作用越来越明显，尤其是随着多轴CNC技术的普及发展，传统手工加工方式逐渐被计算机代替，一个完成的零件从预思构想，到成品出库越来越依赖计算机的控制，产品精度以及一致性相对以前的手动加工产品有了一个质的提高。因此铣床设计水平的高低直接影响产品的质量及生产要求。作为国家工业的基础，铣床的设计、制造、以及加工质量对其他的产业的发展也奠定了工业基础，起着十分重要的支柱作用。 龙门铣床在各种机加工工具中有刚性好、效率高、操作方便几大优点，特别适合大型零件的机加工，它的结构简单，性能全面且切削质量高。龙门铣床特别适用于各种机械上的大中型有色金属零件的平面、斜面沟槽的铣削加工，龙门铣床除了可以铣削平面，大多数的龙门铣床经过少量改装，还可以进行镗孔和钻孔加工，大大拓展了龙门铣床的加工范围，可以承接各类工件的制造加工。 本设计针对的是龙门铣床上横向走刀箱部件的整体设计，该走刀箱是控制龙门铣床的刀具进行横向移动的一部件，由于它直接控制了刀具的横向移动，因此走刀箱结构的设计精度对整个龙门铣床的加工精度有决定性的影响，设计这个龙门铣床的横向走刀箱，该走刀箱，采用三相交流变频电机控制转速，箱体内使用蜗轮蜗杆机构进行减速加载，整体设计可靠，工作稳定型高，具有较高的推广使用价值。 关键词：龙门铣床走刀箱，蜗轮蜗杆减速 Abstract For machi
ni
ng i
ndustry, milli
ng is o
ne of the pillars of products, all ki
nds of machi
nery a
nd equipme
nt i
n the size of the parts, therewill be almost milli
ng step i
nside, si
nce the reform a
nd ope
ni
ng up, our cou
ntry has a large
number of the i
ntroductio
n of foreig
n adva
nced productio
n experie
nce to meet domestic market dema
nd, desig
n a
nd ma
nufacture of a large
number of
new machi
ne tools, milli
ng machi
nes,which accou
nt for a co
nsiderable part of the developme
nt of tech
nology, the level of Chi
na's eco
nomy has developed rapidly. Role milli
ng i
ndustry i
n the
natio
nal eco
nomy is more a
nd more obvious, especiallywith the popularity of the developme
nt of multi-axis CNC tech
nology, the traditio
nal ma
nual processi
ng methods have bee
n gradually replaced by a computer, a fi
nished part from the pre-thi
nki
ng co
ncept to the fi
nished product more depe
nde
nt co
ntrol of the computer, product accuracy a
nd co
nsiste
ncy relative to the previous ma
nual processi
ng products has bee
n a qualitative improveme
nt. Therefore, the level of milli
ng machi
nes desig
ned direct impact o
n product quality a
nd productio
n requireme
nts. As a basis for
natio
nal i
ndustry, desig
n, ma
nufacturi
ng, milli
ng a
nd processi
ng quality of the developme
nt of other i
ndustries also laid the i
ndustrial fou
ndatio
n, the pillar plays avery importa
nt role. The milli
ng machi
ne has a machi
ni
ng tool i
n avariety of rigid, high efficie
ncy, easy to operate several major adva
ntages, especially for large parts machi
ni
ng, simple structure, high cutti
ng performa
nce a
nd overall quality. Milli
ng machi
ne is suited to avariety of mecha
nical a
nd medium-sized
no
n-ferrous metal parts of the pla
ne, bevel groove milli
ng, milli
ng machi
ne i
n additio
n to the milli
ng pla
ne, most of the milli
ng machi
nevia a small modificatio
n, ca
n also be bori
ng a
nd drilli
ng, greatly expa
ndi
ng the ra
nge of ga
ntry milli
ng machi
ne processi
ng, ca
n u
ndertake all types of ma
nufacturi
ng a
nd processi
ng aworkpiece. X280 is o
ne of the large milli
ng machi
ne ga
ntry milli
ng machi
ne tool pla
nt Koto origi
nal productio
n. This desig
n is for the X280 Milli
ng lateral pass housi
ng segme
nt overall desig
n, the pass box is co
ntrolled milli
ng machi
ne tool lateral moveme
nt of a member, because it directly co
ntrols the lateral moveme
nt of the tool, so take the k
nife box structure desig
n accuracy has a decisive i
nflue
nce o
n the accuracy of the e
ntire milli
ng machi
ne processi
ng, the desig
n of this horizo
ntal milli
ng machi
ne tool path box, the pass box, three-phase ACvariable freque
ncy motor speed co
ntrol, cabi
nets usi
ngworm gear deceleratio
n load, the overall desig
n reliable, stable type high, the promotio
n of highvalue. Keywords: milli
ng machi
ne; take the k
nife boxes;worm gear 目录 摘要1 Abstract 2 引言4 第一章、设计方案的确定5 1.1零件分析5 1.2工作原理分析5 第二章、主传动轴尺寸参数6 2.3蜗轮部分参数设计7 2.4蜗杆蜗轮的设计计算7 第三章、编制蜗杆轴机加工工艺14 3.1、设计工艺14 3.2、加工余量、工序尺寸以及公差的确定14 3.3、工艺尺寸链的确定15 3.4、时间定额以及提高生产效率15 3.5、车削加工工艺： 16 3.6、插键槽17 3.7、铣键槽17 3.8、车削蜗轮17 3.9、对蜗杆轮齿部分进行淬火热处理， 17 3.10、封油保存17 第四章、 PTC Creo仿真设计17 4.1、使用PTC Creo软件绘制零件图并试装配17 4.2、 3D打印验证18 总结20 参考文献21