Portable full digital direct testing universal hardness meter

An all-digital, hardness tester technology, applied in the direction of testing material hardness, which can solve the problems of poor accuracy, poor consistency, inability to perform, and the inability of handheld Shore hardness testers to obtain test results online, achieving a high degree of digitization and versatility Strong, wide-ranging effect

Inactive Publication Date: 2004-12-22
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these hardness testers can be carried to the field and used to detect large samples, they have obvious defects, such as: 1. They are all dynamic load test hardness testers, and the test results are only relative, and the accuracy and consistency are poor; 2. Hammer-type Brinell hardness testers and hand-held Shore hardness testers cannot obtain test results online; 3. If the on-site sample requires direct measurement of hardness values ​​​​of other commonly used scales, the existing portable hardness testers mentioned above cannot

Method used

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  • Portable full digital direct testing universal hardness meter
  • Portable full digital direct testing universal hardness meter
  • Portable full digital direct testing universal hardness meter

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Embodiment Construction

[0019] The present invention is further described as follows in conjunction with accompanying drawing and embodiment:

[0020] Figure 1-12 Among them, the names corresponding to each drawing number are: 1-beam, 2-column, 3-top cover, 4-worm gear, 5-frame, 6-worm gear shaft, 7-force sensor seat, 8-force sensor, 9 -set screw, 10-displacement sensor, 11-guide rail, 12-pressure plate, 13-extension sleeve, 14-stop pin, 15-pressure head bushing, 16-sample, 17-pressure head, 18-sheath , 20-pressure head seat, 21-pillar, 22-support plate, 24-shaft sleeve, 25-worm screw lower support, 26-shaft support, 27-worm screw, 28-worm screw upper support, 30-support bottom plate, 31-magnetic Seat, 32-magnetic switch, 33-handwheel, 34-connecting cover plate, 35-locking handwheel, 36-locking plate, 37,38-amplifier, 39-clock driver, 40,41-sampling and holding device ( S / H) and analog / digital (A / D) converter, 42-random access memory (RAM), 43-keyboard, 44-microcomputer, 45-display, 46,47-V block,...

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Abstract

The sclerometer includes following parts: (1) cabinet rack; (2) frame in force-closed structure including at least two columns to support frame, and a magnetic holder for fixing a supporting bottom board or sample to be tested through magnetic connection; (3) unit for loading test force composed of worm, worm wheel, force sensor, replaceable press head etc; (4) displacement sensor for press head (5) processing system for treating signal and data of sensors. The invention possesses features: suitable to test hardness of sample in different shapes and situations on site; determining testing validity online; each general hardness test can be carried out after press head is replaced.

Description

technical field [0001] The invention relates to a portable all-digital direct-test universal hardness tester, which belongs to the technical field of material mechanical performance testing instruments. Background technique [0002] Commonly used instruments for testing metal hardness include Brinell hardness tester, Rockwell hardness tester, Superficial Rockwell hardness tester, Shore (Leeb) hardness tester and Vickers hardness tester. All types of metal hardness testers only correspond to one metal hardness test method, or are mainly based on one hardness test method, and the other one or two are supplementary (and only a few scale hardness tests can be done) , so they are not universal; although there are digital display Brinell, Rockwell, superficial Rockwell, and Leeb hardness testers put into use, they only relieve the indentation measurement, the average hardness of the sample, the fluctuation of hardness indication, etc. The manual operation and calculation of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/42
Inventor 邢思明
Owner WUHAN UNIV
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