凸轮式圆形线材拉拔试验机设计+CAD图纸
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