托辊管体止口专用夹具设计 毕业论文.docVIP

托辊管体止口专用夹具设计 摘要：托辊是带式输送机的主要部件之一，其作用是支撑输送带和带上的物料，减小允许阻力，并使带式输送机的垂度不超过一定限度，以保证输送机平稳运行。它的应用十分广泛，其生产属专业化大批量生产类型，那就要求其加工设备能满足大批量生产的要求。我们通过设计的夹具来实现托辊的大批量生产。托辊夹具用于一台同时加工四个工件的镗床上，并且能同时加工工件的两端，因此夹具必须满足四个工件的定位夹紧。夹具的最基本作用就是保证工件准确定位且夹紧以利于加工，由于托辊有不同的直径系列和不同的长度系列，因此此夹具必须在长度和直径方向可调，还必须保证在正确定位的基础上夹紧，而且使各工件所受夹紧力相同。除了让夹具满足上述要求外，还应尽量使夹具快速准确定位夹紧，以节省辅助时间提高自动化程度，减轻劳动强度；尽量结构简单，操作方便。本设计中通过自动定心夹紧机构来让定位夹紧同步进行；利用液压系统实现四个工件的同时夹紧，该夹具有效的减少了工件加工的辅助时间，提高了加工效率。 关键字： 托辊；镗床；夹具；液压回路；自动定心夹紧机构 Roller Tube Body Check Mouth Special Jig Design Abstract：Roller is the main component of belt conveyor one.Its role is supporting conveyor belt and bring materials, reduce resistance, and that allowed the belt conveyor sag does not exceed a certain limit, to ensure that the conveyor running smoothly. It used widely, its production of specialized high-volume production type, that requires its processing equipment can satisfy the demand for mass production. We through the design of fixture to realize the mass production of roller. For a while roller fixture of boring machine processing four workpiece, and can also machining, therefore fixture at opposite ends of the localization of four must satisfy the clamping workpiece. The most basic role is fixture ensure accurate orientation and clamping workpiece, favors the processing of roller have different because of different length and diameter of series, so this fixture must series in length and diameter direction is adjustable, it must be based on the correct orientation, and make each clamping workpiece by clamping force that same. Besides make fixture fulfill the above requirements outside, still should make fixture rapid accurate positioning clamping to save auxiliary time increased automation, reduce labor intensity; As far as possible simple structure, convenient operation. This design through self-centering clamping agencies to make positioning clamping synchronously; Using hydraulic system at the same time, the realization of the four workpiece clamping, t