Three-point force tester for cylindrical elastic element

Abstract

The invention discloses a three-point force tester for a cylindrical elastic element, which is characterized by comprising a frame, a test part, a transmission part and a test circuit, the test part comprises a base plate, a turntable and a panel, the base plate and the panel are fixed onto the frame, the turntable is arranged between the base plate and the panel through a central shaft and driven to reciprocate by the transmission part, three arc grooves are arranged on the turntable, three sliders are arranged on the panel, a shaft is arranged at the bottom of each slider, a lower section of each shaft is positioned in the corresponding arc groove of the turntable, and the test circuit comprises a pressure sensor, a stroke sensor, a data acquisition module, a data compilation module, a data processing module, a curve output module and a display module, wherein the data acquisition module is used for receiving output signals of the pressure sensor and the stroke sensor, the data compilation module is used for converting analog signals into digital signals, the data processing module is used for recording the position of each datum outputted by the data compilation module on a coordinate and converting the position into a curve trace, the curve output module is used for outputting continuous curves, and the display module is used for displaying curve results. The three-point force tester has the advantages of simplicity and convenience in operation, accuracy in testing and capability of outputting the continuous curves.

Description

Technical field [0001] The invention relates to an elastic element force measuring machine, in particular to a cylindrical elastic element three-point force measuring machine. Background technique [0002] In order to test the clamping ability of the elastic element, especially the cylindrical elastic element, such as a clamp spring, a force test is generally performed on the clamp spring. The existing spring force measuring machine has the following problems due to its structure: [0003] 1. The spring dynamometer uses four chucks. If the layout is slightly uneven, it will cause deviation of the test point and make the collected data inaccurate; [0004] 2. The four chucks are clamped or loosened by bevel gears, with poor accuracy; [0005] 3. The existing dynamometer uses readings to display the test results. Because the readings are delayed, the test results cannot be collected continuously, which affects the analysis results. Summary of the invention [0006] The present inventio...

AI Technical Summary

Problems solved by technology

[0003] 1. The spring force measuring machine uses four chucks. If the layout is slightly uneven, it will cause deviations in the test points and make the collected data inaccurate;

[0004] 2. The four chucks are clamped or loosened by bevel gears, and the precision is poor;

[0005] 3. The existing dynamometer uses readings to display the test results, because the readings are delayed, so the test results cannot be collected continuously, thus affecting the analysis results

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