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UG三维夹具 十字头 零件 车床 夹具 设计 UG 三维

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十字头零件的车床夹具设计【UG三维夹具】,UG三维夹具,十字头,零件,车床,夹具,设计,UG,三维

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摘摘 要要根据任务书的要求，本次任务主要是针对十字头零件的加工设计两套专用的车床夹具，完成相应的加工要求。主要内容包括：加工零件的分析、分析其结构、各部分相关尺寸、加工工艺过程及工序、零件图的绘制、加工各面、孔等内容。具体任务是针对车85 外圆和挖 24 槽设计两套专用车床夹具，确定其定位、夹紧方案和误差、切削力的计算。在此之前，首先要拟定一套高效的加工方案，进行工序及工步的确定，进而根据所选定的方案完善相应的计算和加工工艺卡片，再由所需要求，设计出夹具的尺寸，根据查找的资料，实现理论的设计。在得到理论设计的尺寸和方案之后，利用 UG 进行三维建模，并对所画的各部件做装配、爆炸及运动仿真等工作，最后，将所有零部件及装配图生产工程图。通过 UG 的虚拟设计，来说明各部分零件之间的结构和装配关系，同时为了清楚的表示出组装夹具的内部联系，还需要绘制出相应的剖视图，以加深对设计内容的理解和直观感觉。在最后的运动仿真，分析可得到所设计的夹具符合零件要求。关键词：关键词：车床夹具；UG；虚拟设计；运动仿真AbstractAccording to the requirements of specifications, the main task is to design two special lathe fixtures for machining crosshead part, to complete the corresponding processing requirements. The important tasks are analysis of processing parts, analysis of its structure and the partial correlation dimension, process technology and process, drawing of spare parts, machining of the part of spaces and holes, and so on. The particular tasks are to design two special lathe fixtures for turning the circle of 85 and 24, to make sure the scheme of positioning and clamping, and to calculate the error and cutting force. First of all is to achieve high speed and efficient processing scheme, to determine the working procedure and step, then according to the selected scheme to complete the corresponding counting and processing cards, according to the requirements to design the size of fixtures, to realize the theory design. When we obtain the size of the theory design and the scheme, we use UG to create three-dimensional modeling and assemble all parts and explode all parts and motion simulation, and so on. All parts and assembly draws production engineering drawings. We illustrate the structure and assembly relation between the parts by the virtual design of UG. At the same time, we use it to clear out the internal relations of assembly fixture and need to draw the sectional view of the corresponding to readers, which give the most intuitive feel for readers at a glance. After the motion simulation, the fixtures which I design can meet requirements of parts.Key words: turning machine fixture; UG; virtual design; motion simulation目目 录录摘 要.IIIABSTRACT.IV目 录 .V1 绪论.11.1 本课题研究的目的和意义.11.2 国内外研究现状，发展动态.11.3 本课题的主要内容.22 零件的分析及工艺规程设计.42.1 零件的功用.42.2 零件的工艺分析.42.3 确定毛坯的制造形式.52.4 基面的选择.52.5 制定工艺路线.52.6 机械加工余量、工序尺寸及毛坯尺寸的确定.52.7 确定切削用量及基本工时.63 夹具设计.153.1 车 85 外圆的夹具设计.153.1.1 问题的提出.153.1.2 定位方式和定位基准的选择.153.1.3 切削力及夹紧力计算.153.1.4 定位误差分析.163.1.5 夹具设计及操作简要说明.163.2 挖 24 槽的夹具设计.183.2.1 问题的提出.183.2.2 定位方式和定位基准的选择.183.2.3 切削力及夹紧力计算.183.2.4 定位误差分析.193.2.5 夹具设计及操作简要说明.