摘要:本文列举了几种典型的微型材料拉伸试验方法,具体介绍了其驱动方式、力和位移测试原理,并且介绍实验中的难点。提出了两种微型拉伸试验机构的设计方案,并设计微型拉伸试验机构的细节构造,由滚珠丝杠、直齿锥齿轮、微型试样夹具等部件组成。滚珠丝杆选用台湾PVP品牌产品,直径12mm,导程2mm。文中涉及对滚珠丝杠、锥齿轮轴、直齿锥齿轮、轴承、键和电机的强度校核、寿命校核和能力校核等。论文进一步提出了该微型拉伸试验机构的下一步改进方案和发展方向。包括单向拉伸变为双向拉伸;拉伸夹具改进为可以进行拉伸、压缩、疲劳、弯曲和剪切等实验的夹具;在热台中对试样进行加热的材料性能试验。9862
关键字:微型拉伸;机构设计;滚珠丝杠;夹具
Abstract: This paper enumerates several typical micro material tensile test method, detailed introduces the drive way, the force and displacement of the testing principle, and the difficulty in the experiment. Proposes two design scheme of micro tensile testing agencies, and the design details of micro tensile testing institutions structure, the ball screw, straight bevel gear, such as micro clamp sample parts. Ball screw choose product of brand of a Taiwan PVP, diameter of 12 mm, 2 mm lead. Also involved to the ball screw, straight bevel gear, bevel gear, shaft, bearing, key and the intensity, the life of the motor and capacity respectively, etc. Paper further put forward the micro tensile test agency of improvements and development direction of next step. Including one-way stretch into a two-way stretch. Stretching jig improvement for can do tensile, compression, fatigue, bending and shearing experiment of fixture; Heat in taichung for heating of the material performance test sample.
Key words: The micro stretch; Organization design; Ball screw; Fixture
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