毕业设计摘要 柴油机机体顶面攻丝专用机床主轴箱设计

机械 毕业设计 论文 课程设计 柴油机机体顶面攻丝专用机床主轴箱设计柴油机机体顶面攻丝专用机床主轴箱设计 摘要 D3115 柴油机机体顶面攻丝机床总体及夹具设计的目的是使在 3115 柴油机机体上加工 14 个螺纹孔 M14 6H 时 在 14 个螺纹 孔间符合 43 83 71 尺寸要求 且为了满足生产率的要求 顶面 的螺纹孔数量较多 特采用立式单工位形式的组合机床对多孔进行 攻丝加工 总体设计中设置了电气装置 动力箱 主轴箱 靠模装 置 床身 立柱 立柱底座等一系列装置 并且满足结构合理 简 单 实用的要求 夹具设计的目的是使工件在机床上定位准确 夹 紧可靠 本次夹具在设计过程中 在分析被加工零件的基础上根据 六点定位原则 基准选择的基本原则 实现工件在夹具中的定位合 理 减消或消除工件的定位误差 以此来保证工件的加工精度 在 合理定位的基础上 根据加工过程中的受力状态和夹紧力的布置原 则 来制定夹紧力合理的布置方案 通过相关计算公式 对加工过 程中夹紧力大小进行估算 来选择尺寸结构合理的夹紧动力元件 根据工件自身结构和加工的要求以及加工过程中受力的特点 来选 择设计合理的夹紧机构以达到保证工件的定位的准确 快速 本次 设计采用一面两销的定位方案 和液压夹紧机构等 刀具采用丝锥 来攻螺纹孔 所以精度要求较高 总而言之 机床总体及夹具设计 达到了设计任务书的要求 提高了整台机床整体的性价比 具有良 好的经济效益 关键词 总体及夹具设计 六点定位原理 定位误差 夹紧力 Abstract The purpose of the gross and the clamps design for assailing silk on the body crest face of the D3115 diesel engine machine is to be accord with the size request of 43 83 and 71 when processing the 14 threads For satisfying the request of producing rate and because of the number of the threads is numerous we adopt the single work form combination machine to carry out processing of the threads It established the electricity eqoipment motive box depending the mold device bed body singn pillar and sign pillar base etc a series of equipments It satisfied with the request that the struct is reasonable sime and practical Combine the tool machine special clamps design the purpose is a high accuracy tongs that designs a pair and the combination tool machines to match mutually with it to carry out the work piece of high quantity process In Clamps designed process at being analytical to be process the foundation of the spare parts up position the principle according to six points the basic principle of the basis choice carrying out the work piece reasonable in the fixed position in the tongs reducing to eliminate or removing the fixed position error margin of the work piece guaranteing that the work piece processes the accuracy with it On the foundation of the reasonable fixed position according to process the process in of be subjected to the dint appearance and clip the tight dint to arrange the principle drawing up to clip the tight dint to arrange the project reasonablely Passing the related calculation formula cliping the tight dint size to carry on estimate towards process in the process choosing the size structure to clip the tight motive component reasonablely according to an oneself of work structure and processed requests and process to be characteristics by the dint in the process choosing the design to clip the tight organization to guarantee by attain that the work piece positions accurate reasonablely fast This clamps design adopt the fixed position project that a face two tab canvels And the liquid pressing clip tight organization etc The knige has to adopt the silk awl to offend the threads So the accuracy have a higher reques To sum it up the whole tongs comes to a the request of design the mission book raising the whole function price with whole tool machine having a good economic performance Key word The total and clamps design Position the principle six points Fixed position error margin Clip the tight dint 目 录 第一章 引 言 1 1 组合机床概述 1 2 夹具概述 第二章 D311