一种弹簧端头厚度检测量规的设计
张志辉1，孙娜2
（1.山东康达集团有限公司，山东 龙口 265710；2.山东威龙集团公司，山东 龙口 265710）
摘要：螺旋压缩弹簧端头厚度的传统检测方法是：将塞尺插入弹簧端头的间隙处，用游标卡尺的尾部抵住塞尺，尺身垂直于端头，测出端头厚度。实践证明这种方法的检具误差在Δ＝1.5cotα之间。对于调压簧等旋绕比小的弹簧，卡尺与弹簧接触不稳定又会造成视觉误差，从而影响检测效果。提高弹簧端头的检测精确度，必须使用专用的检测量具准确读取数值。可将拧在（0～3 mm）百分表量杆上的量头改为有尖形刃口的方形柱状表头，制作测量座。测量时，先用校对块将表头对在平面位置，表针对零。然后将弹簧端头断口正面对准表头尖头面，推动弹簧，使弹簧端面与检具平面完全贴合，百分表即可显示出准确的端头厚度数值。
关键词：螺旋压缩弹簧；端头厚度；检测误差；百分表表头
中图分类号：TJ765.4+1 文献标识码：A 文章编号：1006－0316 (2012) 04－0070－02
A design of measuring meter used to measure the thickness of spring end
ZHANG Zhi-hui，SUN Na2
（1.Shandong Kangda Group Co.,Ltd，Shandong province，Longkou 265710，China；
2.Shandong Weilong Group Corportation，Shandong province，Longkou 265710，China）
Abstract：The traditional way of measuring the thickness of spiral pulling-spring end is to plug the plug-ruler into the between of spring-end, let the vernier caliper tail against the ruler, and let the vernier calliper vertical with the spring end, finally the thickness come out. However, practically proved , this way can make measurement error aboutΔ＝1.5cotα, and especially as to adjustable-pulling spring whose twist rate is small , the unstable touch of calliper and spring can also make ocular measurement error , and effect the measurement result. In order to improve the measuring accuracy , a special-purpose measuring meter must be used to show accurate measuring result . Here is the way, Unscrew the pole-top of percentage-meter, and change it by a square top with sharp-beaked edge, then measuring level occur. When you use the measuring meter to measure, firstly, level the measuring level by an accuracy-black, and adjust the poletop at the-zero beginning. Let the springend face to the meter’s top, push the spring, make them touch entirely, the percentage meter can show an exact number of the thickness of spring-end.
key words：spiral pulling spring；the thickness of spring-end；measuring error；percentage-meter top
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收稿日期：2011－10－08
作者简介：张志辉（1973－），山东龙口人，工程师，主要研究方向为弹簧设计与工艺制造及自动化改造。
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