ø19焊接型深孔钻头结构设计与受力分析.doc

中北大学2010届毕业设计说明书 PAGE 第 PAGE 3页 共 NUMPAGES 52页 ?19焊接型深孔钻头结构设计与受力分析 摘要：随着机械工业的发展，深孔加工技术在机械制造业中运用越来越广泛，发挥的作用越来越重要。在我国的29个制造行业中，至少有一半对深孔加工技术和装备有直接需求，1/3以上有迫切需求。在深孔加工技术中，深孔刀具的结构，性能对深孔加工技术的水平提高起非常关键的作用，所以对深孔刀具的结构设计的研究非常必要，能更好的提高其排屑能力和加工质量。 因此，在总结过去深孔加工技术及经验和吸收国外先进技术的基础上，大力进行深孔刀具和加工技术研究，努力提高我国深孔加工技术和装备水平，已成为深孔加工技术工艺人员的重要任务，这也是开展本课题研究的目的所在。 本设计分析了BTA钻削的工作原理，结构设计和受力分析。根据深孔加工中分屑、断屑和导向条等方面进行了详细的讨论。设计深孔钻的结构并对其在深孔加工过程中的受力情况进行了分析。更好的改善和完善其结构。 关键词：BTA深孔钻，深孔加工，枪钻，切削性能，力学特性 ?19 drill hole welded structure design and stress analysis Abstract: With the machinery industry, deep processing technology in the machinery manufacturing industry used more and more widespread, more and more important role. In the 29 manufacturing industries in China, at least half of the deep hole processing technology and equipment has a direct demand, 1 / 3 or more urgent needs. In the deep processing technology, the hole cutter structure, performance level of pairs of Deep Hole Machining Technology played a key role to improve, so the hole in the structure design of the tool is necessary, to better improve the chip removal Nengli and processing quality. Therefore, summing up the last hole processing technology and experience and absorption of foreign advanced technology, based on deep processing technology to vigorously carry out research, aise Chinas deep processing technology and equipment level, has Chengwei deep processing techniques and the important task of staff This is the purpose of carrying out this research project lies. The design of the BTA drilling works, structural design and stress analysis. According to carve deep processing chip, chip breaking and oriented articles and other aspects are discussed in detail. Design of the structure of deep drilling in the deep processing of its force in the situation analyzed. Better, and improve its structure. Keywords: BTA deep hole，drilling deep hole， cutting ，mechanical properties 1 绪论 1.1 深孔加工技术简介 深孔钻削加工技术是在18世纪后期，由于制造的枪管和炮管要求有较精密的孔，由早期的枪匠们开始发展起来的。