凸轮式圆形线材拉拔试验机设计+CAD图纸
时间:2019-01-26 16:40 来源:毕业论文 作者:毕业论文 点击:次
| 摘要这次设计的是圆形线材凸轮式拉拔试验机，包括对拔模，以及对可沿轨道移动的拉拔小车和与拉拔小车连接的牵引装置，牵引装置包括拖板，设在箱体内的凸轮，花键轴，电机和与电机连接的减速器，在拖板轨道上设有压紧装置，细钢丝绳的一端连接拉拔小车的后端，另一段钢材无限延伸。本产品的优点是操作简单方便，成本低，而且可实现连续拉拔，加工效率高。本文主要介绍了拉拔机的发展，国内外的现状，以及拉拔机在使用过程中经常出现的问题。介绍了拉拔机的运动原理和设计方法。它主要用于从毛坯直径3.5mm到直径3.0mm的拉拔工作，并介绍了拉拔试验机的一些相关概念，分析了它的选材与计算，详细给出了拉拔试验机的的计算过程，由此确定出其外形尺寸、传感器、减速器箱，轴承等的计算及运动参数。33095 毕业论文关键词：拉拔机试验机 设计 计算 Abstract This design is the circular wire type cam pull-out test machine, including the draft, and to move along the track of drawing carriage and connected with the drawing vehicle traction device, traction device comprises a planker, located in the box body of the cam, spline shaft, motor and is connected with the motor and the speed reducer, in that the slide track is provided with a clamping device, one end of the thin steel wire rope is connected with the rear end of the drawing of the car, another steel unlimited extension. The advantages of this product are simple operation, low cost, and can realize continuous drawing, high machining efficiency This paper mainly introduces the development of the drawing machine, the status quo at home and abroad, and the problem that the drawing machine often appears in the course of using The movement principle and design method of the drawing machine are introduced It is mainly used for drawing work from the blank diameter of 3.5 mm to 3.0 mm in diameter, and introduces some concepts related to the pull-out test machine, material and calculation of it are analyzed, calculation process is given in detail drawing testing machine, which determine the the dimensions, sensor gear box, bearing calculation and motion parameters. Keywords: drawbench machine design and calculation 目 录 1、绪论.1 1.1课题背景 1 1.2课题的价值.1 1.3课题目的与要求2 1.4课题的研究范围2 1.5课题的发展状况3 2、设备的简介3 2.1凸轮式拉拔机的工作原理3 2.2重要指数.5 3、各部件单元的功能设计5 3.1 动力装置及其控制功能设计.5 3.2 凸轮的功能设计.5 3.3 运动小车的功能设计.6 3.4 工件夹具的功能设计.6 3.5 拉模与模具座7 4、零部件结构设计与计算7 4.1 凸轮运动轨迹及结构设计7 4.1.1 运动轨迹要求与选择设计7 4.1.2 运动参数设计选择7 4.1.3 凸轮曲线分析7 4.1.4 凸轮压力角计算9 4.1.5 凸轮结构设计10 4.2主轴的设计.10 4.3轴承的选择.12 4.4传动机构的选择14 4.5 连接轴与联轴器设计.15 4.6 拖板结构设计16 4.7 小车运动导杆的结构设计与计算.17 4.8 夹紧结构设计17 4.9 模具座结构设计19 4.9.1拉模的选择19 (责任编辑：qin) |