FIELD: measuring equipment.
SUBSTANCE: device contains two coaxially located shafts (1) and (2) connected by a housing (3), in the hole of which a two-arm lever (6) is installed. One of the arms of the lever (6) contacts the flat end of the plunger (7) centered by the bushings (8) and (9) in the shaft hole (2), when the second arm of the lever (6) interacts with the inner rotation surface of the middle of the five controlled holes. On the shafts (1) and (2) there are three centering units (10), (11), (12), a measuring unit (13) with an indicator (14). Each of the centering units (10), (11), (12) is made in the form of a cylindrical stepped body (15). The measuring unit (13) installed with the centering unit (12) on the hollow shaft (2) is in the form of a cylindrical body (31) with an axial hole and a cover (32) fixed to the end face of the body.
EFFECT: providing the ability to control coaxiality with accuracy within the tolerance of the middle and intermediate holes relative to the extreme in the body parts relative to their common axis.
7 dwg
