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汽车 制动 圆柱面 专用 铣床 总体 夹具 设计 CAD

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汽车制动蹄圆柱面专用铣床总体及夹具设计含7张CAD图,汽车,制动,圆柱面,专用,铣床,总体,夹具,设计,CAD

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摘要专用机床是通过缩小机床的工艺用途来实现高效率的机床。这类机床结构较简单，调整和操作方便，自动化程度较高，易于保证质量并有较高的生产率。适于成批生产。根据制动蹄圆柱面的加工要求，采用专用机床加工该工件比较适合。根据制动蹄圆柱面的加工要求，本设计的主要任务是制动蹄圆柱面专用铣床的总体及夹具设计。全面的考虑整台机床所需的部件以及各个部件的布局，明确各个部件的作用以及技术要求等。从工件出发，分析及确定加工用量，根据切削用量选择动力部件，设计传动链，选择电机的型号。另一方面，夹具的设计是工件能否在这台机床上加工的关键。根据工件的技术要求，分析工件的定位，采用定位销、挡板和支承块定位，限制了工件的六个自由度，保证加工要求。本设计圆满设计出了一台专门加工制动蹄圆柱面的铣床，解决了工件在车床以及磨床上难加工的问题。另一方面，设计的夹具解决了工件如何定位及夹紧在机床上等问题，从而保证加工稳定，达到加工精度要求。 关键词 专用；总体；制动；自由度 AbstractSpecial machine is a machine by reducing the use of technology to achieve high efficiency of the machine. Such machines structure is relatively simple, easy adjusted, higher degree of automation , easy to guarantee quality and has higher productivity. So its suitabled for mass production. According to the processing requirements of the brake cylinder, its more suitable using a special machine to process the work-piece. According to the processing requirements of the brake cylinder, The main tasks of the design are to overall design a special milling machine of brake cylinder and the fixture. Roundly considers the necessary components of the whole machine and the layout of the various components. Explicits the function and the technical requirements of each parts. The overall design of this special milling machine begins from the workpiece, analyse and determine the dosage of the process, then choose the motivity parts, design the drive chain, and final choose the choice of the motor base the dosage of the process. The other hand, its the key whether the work-pieces can be done in this machine processing that the fixture is designed. According to the technical requirements of the work-piece, this fixture uses pins and supporting baffle block positioning to limit the work-pieces 6-DOF and guarantee the processing requirements.A specialized machine for processing brake cylinder is satisfactorily designed. This machine solves the problem that the work-piece is difficult processed on the lathe and on the grinding machine. The other hand, the fixture solves the problem that how to orientate the work-piece and clamp on the machine. It can ensure the stability of the processing and make to arrive at the precision machining.Keywords special overall brake DOFII目 录1 绪论11.1 设计意义11.2 专用机床概述12 零件分析和加工方案的确定32.1 零件分析32.1.1 零件介绍32.1.2 零件的功用32.1.3 零件的毛坯材料42.2 加工方案的确定43 专用机床总体设计63.1 机床设计的步骤63.2 刀具与工件相对位置的确定63.2.1 设定相对位置尺寸63.2.2 铣削后圆柱面的侧母线73.2.3 参数、值大小及精度93.2.4 确定相对位置尺寸103.3铣削用量的确定103.4 确定制蹄片专用铣床总体方案123.5 确定制动蹄片专用铣床的传动143.5.1 减速器的类型与选择153.5.2 电动机的类型与选择153.5.3 传动装置的总传动比及分配173.5.4 计算传动装置的运动和动力参数173.5.4.1 各轴转速173.5.4.2 各轴的输入功率183.5.4.3 各轴的输入转矩183.5.5 V型带的设计与选择183.5.6 齿轮传动设计203.5.6.1 选择模数203.5.7 轴的校核223.5.8 轴承的选择与校核243.5.9 键的校核254 专用机床夹具的设计264.1机床