加工中心换技术.doc

常州机电职业技术学院 毕业设计（论文）说明书 作 者： 王秋晓 学 号： 系 部： 机械工程系 专 业： 数控设备应用与维护 题 目： 加工中心自动换刀技术及发展趋势 指导者： 评阅者： 毕业设计（论文）中文摘要 摘 要 90年代以来，数控加工技术得到迅速的普及及发展，高速加工中心作为新时代数控机床的代表，已在机床领域广泛使用。自动换刀刀库的发展俨然已超越其为数控加工中心配套的角色，在其特有的技术领域中发展出符合机床高精度、高效率、高可靠度及多任务复合等概念的独特产品。刀库作为加工中心最重要的部分之一，它的发展也直接决定了加工中心的发展。本论文完成的是盘式刀库的总体设计、传动设计、结构设计以及传动部分的运动和动力设计。这种刀库在数控加工中心上应用非常广泛，其换刀过程简单，换刀时间短，定位精度高；总体结构简单、紧凑，动作准确可靠；维护方便，成本低。本刀库减速传动部分分两级减速，一级传动部分采用齿轮减速装置，二级传动部分采用蜗轮蜗杆减速装置，此种设计方案可提高输出轴的传动平稳性能，即提高刀盘的运转平稳性。本刀库满载装刀24把，采用单环排列方式排放，按就近选刀原则选刀。 关键词：加工中心；刀库；数控加工 毕业设计（论文）外文摘要 Since 90 time, NC machining technique get rapid popularization and development, high speed machining center as a new era of the representatives of NC machine tools, has been in the field of machine tool widely used. Automatic knife library development has already gone beyond the NC Center for supporting the role, in its unique in the field of technology development to meet the high-precision machine tools, high efficiency, high reliability and more complex tasks such as the concept of unique products. The knife as a processing center one of the most important part, its development also determines the development of machining center. This paper completed the overall design is a disc cutter, transmission design, structure design and the transmission part of the movement and dynamic design. This kind of cutter in NC machining center is widely used, the tool change is simple, tool change time is short, high positioning precision; the overall structure is simple, compact, accurate and reliable operation; easy maintenance, low cost. The knife the deceleration transmission part is divided into two stage speed reduction, a part of the transmission gear device, two transmission part adopts a worm gear reducer, such design can increase the output shaft of the transmission smooth performance, improve the operation stability of the disc cutter. The knife with knife24, using