Patent ID: 9134106
Filing Date: 2015-09-15
Classification: G01B

Abstract:
1. A testing device for testing coaxial tolerance of at least one columnar portion of an article relative to an axis of the article, and the testing device comprising: a position assembly comprising a fixing base and a position member movably mounted on the fixing base; a benchmark assembly positioned spacedly from the position assembly, the benchmark assembly comprising a mounting base oppositely configured to the fixing base of the position assembly, and a benchmark member rotatably positioned on the mounting base; and a measuring assembly positioned on the mounting base, wherein the benchmark member comprises a rotating portion and a locating portion coaxially connected with the rotating portion, the rotating portion is movably received in the mounting base, the locating portion protrudes from the mounting base towards the position member, the measuring assembly comprises a loading member movably positioned on the mounting base and a gauge, the gauge is mounted on the loading member, the gauge contacts an peripheral wall of the at least one columnar portion of the article to measure coaxial tolerance of the at least one columnar portion relative to the axis of the article when the article is located between the locating portion and the position member, and an axis of the benchmark member is coaxial with an axis of the article.