Indentation measuring device for detecting Brinell hardness tester

Abstract

The invention provides an indentation measuring device for detecting a Brinell hardness tester, and relates to the technical field of indentation measurement. The indentation measuring device for detecting the Brinell hardness tester comprises a mounting base, wherein a fixing block is fixedly mounted on the upper surface of the mounting base; and the top of the fixing block is fixedly connected with a sleeving rod; the outer surface of the sleeving rod is sleeved with a sleeving block; one side of the sleeving block is fixedly provided with a reading microscope; the other side of the sleevingblock is in threaded connection with a locking bolt; and the inner side wall of the mounting base is rotatably connected with a first rotating rod through a bearing. According to the invention, through the cooperation of structures such as a first transmission assembly, a second transmission assembly and a third transmission assembly, a clamped standard hardness block is enabled to be always located under the reading microscope, the deviation condition is avoided, and the indentation measurement accuracy is improved. Meanwhile, the four clamping blocks can be suitable for standard hardness blocks with different diameters, the universality of the whole device is improved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of indentation measurement, in particular to an indentation measurement device for Brinell hardness tester detection. Background technique [0002] Brinell hardness tester is mainly used to measure the hardness of cast iron, steel, non-ferrous metals and soft alloys. It is mainly to use a hard metal ball with a certain diameter to press into the surface of the test piece under the action of the specified test force, remove the test force after a certain test force holding time, and then measure the diameter of the indentation left on the surface of the test piece. The Brinell hardness value is expressed as the average pressure on the indentation surface area. When testing the Brinell hardness tester, apply the specified test force on the standard hardness block with the tested hardness tester, measure the indentation diameter on the surface of the standard hardness block, and then obtain the corresponding t...

AI Technical Summary

Problems solved by technology

[0003] When measuring the indentation, in order to accurately measure the diameter of the indentation, the relative position of the reading microscope and the indentation must be fixed. The ordinary reading microscope directly places the standard hardness block under it when reading, and then manually checks it. Auxiliary fixation and adjustment, during the fixation and adjustment process, the small influence of manual changes will change the relative position of the reading microscope and the indentation, thus greatly affecting the measurement accuracy of the indentation diameter

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