Flange flatness measurement instrument

The utility model discloses a flange flatness measurement instrument, the on -line screen storage device comprises a base, base side level has set firmly two at least spinal branch vaulting poles, beequipped with rotatable pivot on the base perpendicularly, the lower extreme of pivot is extended and is connected with the table pole that the level set up from the base, the one end of table pole isequipped with the percentage table that is used for measuring flange plane degree, the upper end of pivot is equipped with the rocker, still include to wear the dress on the bracing piece and throughthe fixed threaded stand column of two the 1st lock nut of matched with locking, the threaded stand column cartridge is in waiting to detect flange connecting hole and through locking fixedly throughtwo the 2nd lock nut of matched with. The utility model discloses simple structure, convenient to use, whole measuring tool realizes fixed position through the threaded stand column cooperation locknut of cartridge in waiting t