齿厚游标卡尺都有哪些参数及技术要求?

2025-03-17 00:39:47
推荐回答(1个)
回答1:

齿厚游标卡尺的技术要求:
1、齿厚游标卡尺的外部表面不应有明显的外观缺陷。
2、齿厚游标卡尺的尺框和微动装置应能沿主尺平稳移动,无卡滞和松动现象。
3、齿厚游标卡尺测量面的硬度应不低于以下规定。
齿高尺测量面材料:碳素钢工具钢或工具钢;硬度:664HV(≈58HRC)。
不锈钢材料:550HV(≈52.5HRC)。
齿厚尺测量面材料:硬质合金。
齿厚游标卡尺的相关参数:
1、测量范围
1mm~25mm
2、测量精度
由于不同的尺精度有较大区别,不同测量精度的状况下需要选择不同规格的尺。
3、示值误差
指示值与两测量面实际分隔的距离之差。
齿厚游标卡尺利用游标原理,以齿高尺定位对齿厚尺两测量爪相对移动分隔的距离进行读数的齿厚测量工具。是游标卡尺的一种。游标卡尺(VERNIERCALLIPER),是一种测量长度、内外径、深度的量具。游标卡尺由主尺和附在主尺上能滑动的游标两部分构成。主尺一般以毫米为单位,而游标上则有10、20或50个分格,根据分格的不同,游标卡尺可分为十分度游标卡尺、二十分度游标卡尺、五十分度格游标卡尺等,游标为10分度的有9mm,20分度的有19mm,50分度的有49mm。游标卡尺的主尺和游标上有两副活动量爪,分别是内测量爪和外测量爪,内测量爪通常用来测量内径,外测量爪通常用来测量长度和外径。

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