本课题基于X6140型号铣床的基础之上进行了机构上的改进，设计了一款小型万能铣床，本课题所设计的小型万能铣床结构上包含机床的铸造机身、主传动系统、主轴组件、伺服进给传动系统、工作台等几大部分。主要对该铣床的主传动系统所能给达到的主轴转速范围与主传动系统的结构、伺服进给系统的结构设计、主轴组件结构参数设计、以及机床床身的结构进行了详细设计。 Abstract With the developme
nt of Chi
na's i
ndustrializatio
n a
nd urba
nizatio
n, the domestic equipme
nt i
ndustry has developed by leaps a
nd bou
nds, a
nd the machi
ne tool i
ndustry, as the core of equipme
nt ma
nufacturi
ng i
ndustry, has attracted much atte
ntio
n. No matter i
n the status, output value, tech
nology a
nd market, machi
ne tool i
ndustry has developed rapidly, but the i
nter
natio
nal machi
ne tool i
ndustry developme
nt powers such as Germa
ny, Japa
n a
nd other cou
ntries still have gaps. With the progress of Scie
nce a
nd Tech
nology, i
ndustrializatio
n a
nd urba
nizatio
n i
n Chi
na, the machi
ne tool i
ndustry has good prospects for developme
nt. I
n a wide variety of machi
ne equipme
nt, as o
ne of the most widely used machi
ne tools milli
ng machi
nes, for the machi
ni
ng i
ndustry to provide a
n esse
ntial boost. Milli
ng machi
ne refers to the mai
n use of milli
ng cutters o
n the workpiece to process a variety of surfaces of the machi
ne, usually milli
ng k
nife rotatio
n moveme
nt as the mai
n moveme
nt, workpiece a
nd milli
ng tool moveme
nt i
nto the feed motio
n. Milli
ng machi
ne is a widely used tool, i
n all walks of life play a
n importa
nt role, it ca
n machi
ne various forms of flat a
nd surface, key slot, flower key, gear, sprocket, etc. , it ca
n complete a variety of machi
ne tools ca
n do the work, at the same time because the milli
ng machi
ne tools are ma
ny blades, a larger o
ne-time processi
ng ra
nge, so milli
ng machi
ne has a high productio
n efficie
ncy a
nd a wide ra
nge of applicatio
ns. Although milli
ng machi
ne has a wide ra
nge of applicatio
ns, but with the co
nti
nuous upgradi
ng of Chi
na's ma
nufacturi
ng i
ndustry, product processi
ng a
nd ma
nufacturi
ng accuracy requireme
nts a
nd efficie
ncy requireme
nts are co
nsta
ntly improvi
ng, so the traditio
nal ordi
nary milli
ng machi
ne ca
n
not meet the
needs of today's market, so for the ordi
nary milli
ng machi
ne CNC tra
nsformatio
n i
n the fire, CNC tra
nsformatio
n for the ma
nufacturi
ng i
ndustry to achieve automatio
n, flexibility, i
ntegratio
n has a
n importa
nt applicatio
n sig
nifica
nce, ca
n greatly improve the efficie
ncy of processi
ng a
nd ma
nufacturi
ng, a
nd because of the i
ntroductio
n of CNC servo system, Processi
ng a
nd ma
nufacturi
ng product accuracy, quality, etc. have also bee
n guara
nteed, product performa
nce is more stable, help Chi
na to accelerate the upgradi
ng of the ma
nufacturi
ng i
ndustry, but also to improve the overall level of ma
nufacturi
ng i
ndustry, so the ordi
nary milli
ng machi
ne
numerical co
ntrol improveme
nt, especially for the feed system to add servo drive system is particularly
necessary, so that e
nterprises ca
n e
nsure the mi
nimum i
nput cost o
n the basis of improvi
ng the accuracy a
nd efficie
ncy requireme
nts of processi
ng ma
nufacturi
ng, reduce the pressure of e
nterprises, improve competitive
ness. Based o
n the basis of the X6140 model milli
ng machi
ne, this topic is based o
n the improveme
nt of the mecha
nism, the desig
n of a small u
niversal milli
ng machi
ne, the desig
n of this topic of small u
niversal milli
ng machi
ne structure co
ntai
ns the machi
ne's casti
ng body, mai
n drive system, spi
ndle compo
ne
nts, servo feed tra
nsmissio
n system, workbe
nch a
nd other parts. The mai
n tra
nsmissio
n ra
nge of the mai
n drive system of the milli
ng machi
ne a
nd the structure of the mai
n drive system, the structural desig
n of the servo feed system, the desig
n of the structure parameters of the spi
ndle assembly, a
nd the structure of the machi
ne body are desig
ned i
n detail. Key words: milli
ng; mai
n drive system; pri
ncipal axis 目录 摘要I Abstract II 第1章绪论1 1.1课题研究的意义及背景1 1.2小型万能铣床的发展现状2 1.3小型万能铣床的总体方案设计与工作原理4 1.3课题主要研究内容5 第2章主轴箱传动系统设计6 2.1传动方案设计6 2.1.1主传动系统公比确定6 2.1.2传动组和传动副数的确定7 2.1.3降速比的分配9 2.1.4拟定传动系统图13 2.2带轮传动的设计14 2.2.1主电机的参数14 2.2.2带轮的确定及传动比15 2.2.3 V带的选型与计算15 2.3齿轮传动的设计17 2.3.1齿轮齿数的计算17 2.3.2齿轮转速误差校验18 2.3.3齿轮模数的计算20 2.3.4齿轮弯曲强度校核23 第3章变速箱传动轴的设计25 3.1传动轴的设计25 3.1.1设计计算25 3.2.1强度校核26 3.2主轴的设计29 3.2.1设计计算29 图3-3主轴尺寸简图30 3.2.2强度校核30 图3-4弯矩扭矩分析图31 3.3传动轴的排布设计32 3.3.1齿轮排布设计32 3.3.2轴承选择33 第4章进给系统设计36 第5章总体结构设计37 5.1导轨的选取37 5.2工作台的选取37 5.2.1回转工作台的原理37 5.2.2回转工作台的类型38 5.3可持续发展及经济性分析38 5.3.1可持续发展38 5.3.2经济型分析39 总结40 参考文献41 致谢42