在我们的工作中,常会遇到长孔、深盲孔母线直线度的检测问题。其中对于孔直径大于30mm的通孔,目前尚可应用专用的弯曲度检查仪,但这种仪器只能测较大直径的通孔,且制造困难价格昂贵,一般工厂不具备这个条件,为此我厂自行设计制造了一种经济实用的简易检具,满足了生产的需要。其结构原理如图1。 In our work, often encounter the long hole, deep blind hole bus straightness detection problems. For the hole diameter greater than 30mm, can still be applied to a dedicated curvature tester, but this instrument can only measure the large diameter of the through-hole, and difficult to manufacture expensive, the general factory does not have this condition, to this end Our factory designed and manufactured a kind of economical and practical simple gage to meet the production needs. The structure of the principle shown in Figure 1.