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公开(公告)号:EP3450906A1
公开(公告)日:2019-03-06
申请号:EP18175909.3
申请日:2018-06-05
发明人: Wu, Fuzhong , Huang, Xi´nan , Lei, Guixian , Chen, Jindao , Wang, Xiutao , Lan, Bangyin , Cai, Ailing
摘要: A bar length detection tool and a method for detecting a length of a bar (14) are provided, the bar length detection tool comprises: a substrate (1), a first bearing seat (2) and a second bearing seat (2') oppositely disposed on the substrate (1), and a micrometer (3); wherein a positioning device (5) is rotatably connected to the first bearing seat (2), a mounting plate (6) is rotatably connected to the second bearing seat (2'), and the first bearing seat (2) and the second bearing seat (2') are each provided with at least two needle bearings (12).