Clamping device for measurement of broken tensile test sample and use method of clamping device

Abstract

The invention discloses a clamping device for measurement of a broken tensile test sample and a use method of the clamping device. The clamping device comprises a base plate, a first stud, a second stud, a first nut, a second nut, a first spring, a second spring, a first butterfly nut, a second butterfly nut and a pressing plate, wherein the first stud and the second stud both have top ends and bottom ends which are opposite; the base plate is mounted at the bottom ends of the first stud and the second stud respectively; the first nut and the first spring are mounted on the first stud; the first spring is located on the upper side of the first nut; the second nut and the second spring are mounted on the second stud; the second spring is located on the upper side of the second nut; a firstthrough hole and a second through hole are formed in the pressing plate; the top end of the first stud penetrates through the first through hole, and then is matched with the first butterfly nut; thetop end of the second stud penetrates through the second through hole, and then is matched with the second butterfly nut. The clamping device disclosed by the invention is easy and convenient to operate; the labor intensity is relieved, and the working efficiency is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of measurement, in particular to a clamping device for measuring after a tensile sample is broken and a use method thereof. 【Background technique】 [0002] China Utility Model Announcement No. CN203745301U patent discloses an auxiliary device for measuring after a tensile sample is broken, including a carriage, a slider, a spring, a positioning rod, and a stopper. One end of the carriage is fixed with a stopper, and the other end is connected to the positioning rod Fixedly connected, the slide block is slidably connected with the slide frame, and a spring is arranged on the positioning rod. Support the sample by sliding the V-shaped slider, and then adjust the stud and spring, so that the two ends of the sample are respectively against the stopper and the baffle for axial fixing, and then use the V-shaped slider to support the fracture position of the sample , after which the measurement operation is comp...

AI Technical Summary

Problems solved by technology

The V-shaped slider with a fixed angle supports the specimens with different diameter reduction conditions and fracture positions after fracture. It is difficult to make the centerlines of the two specimens at the horizontal position, so it is difficult to ensure the horizontal fit. Accuracy, thus affecting the accuracy of detection, also makes the operation inconvenient

For a sample in a horizontal position, use a V-shaped slider to support the fracture fitting position, then the measurement operation of the minimum neck diameter at this position is limited, which affects the measurement quality

In addition, the V-shaped slider blocks the line of sight, which also affects the overall observation and adjustment of the sample fitting and central axis alignment quality, and also affects the accuracy of the final measurement

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