苏联研制成一种用于检查端面对平面的垂直度检查仪。它由梁3、恒定支柱4、装有支承6的基座5和装有百分表2的支杆1所组成。检查垂直度时,首先将仪器以基准面B放置到被检查零件的平面上,然后用A面与零件的端面相接触,并把百分表示数调整到零,完成以后,再以基准面将仪器放置到被检查零件的平面上,則端面相对于 The Soviet Union developed a kind of verticality checker for checking end-to-plane. It consists of a beam 3, a constant pillar 4, a base 5 with a support 6 and a support rod 1 with a dial indicator 2. When checking the verticality, first place the instrument on the plane of the part to be inspected with the reference plane B, and then make contact with the end face of the part with the A surface and adjust the percentage indicator to zero. After the completion, The instrument is placed on the plane of the part to be inspected, with the end face opposite