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Combined hardness measuring instrument

A measuring instrument and combined technology, applied in the direction of testing the hardness of materials, etc., can solve the problems of incorrect distribution of sensors, poor measurement accuracy, manual driving, etc.

Active Publication Date: 2015-11-25
吴绍明 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When implementing this patent, due to the incorrect distribution position of the sensor and the manual driving method, non-linear measurement results are generated, and the measurement accuracy is poor

Method used

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Embodiment Construction

[0056] Refer below Figure 1 to Figure 12 The specific implementation of the combined hardness measuring instrument of the present invention will be described in detail.

[0057] The combined hardness measuring instrument of the present invention includes a measuring body 10 and a set of frames that can be connected with the measuring body 10 . figure 1 Shown is a hardness tester consisting of a measuring body 10 and a cylindrical frame 20 . like figure 1 As shown, the column frame 20 is composed of a box member 201 , a connecting plate 202 , a screw 203 , an anvil 204 , a second nut 205 and a base 206 . The measuring body 10 is fixed on the frame 20 through the connecting plate 202 . Equidistant grooves 48 are formed on the box-shaped member 201 , and a positioning key is provided on the connecting plate 202 , and the connecting plate 202 is inserted into any equidistant groove 48 through the positioning key and fixed on the box-shaped member 201 with screws 203 . The anv...

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Abstract

The invention provides a combined hardness measuring instrument. The combined hardness measuring instrument is composed of a measuring main body and a group of different frameworks; the measuring main body has a cavity and a positioning groove, and a user selects different frameworks according to measuring needs and installs the selected frameworks on the positioning groove of the measuring main body; a probe is installed in the cavity of the measuring main body, a force cell sensor equipped with a through hole in its end surface is mounted in the probe, one end of a drive pin contacts with a displacement measuring sleeve, and the other end of the drive pin penetrates the through hole and contacts with a driving plate; a motor connected with a speed reducer is installed at the other end of the measuring main body, and the speed reducer reduces the speed of the motor and is installed on a screw of a bearing pedestal in a driving manner so as to drive the probe to move. With such a structure, the user can select a corresponding framework according to a to-be-detected workpiece and assembles the framework and the measuring main body into a specific hardness measuring instrument which can measure hardness of a to-be-detected workpiece with a complex shape; thus, the application scope of the combined hardness measuring instrument is widened, and testing requirements of the user are substantially met.

Description

technical field [0001] The invention relates to a material hardness testing device, in particular to a combined hardness measuring instrument. Background technique [0002] As we all know, in order to ensure the quality of products, factories and laboratories must test and analyze the hardness of metal products to control the hardness of products to meet the quality requirements of products. For this reason, both NIST (National Institute of Standards and Technology) and ASTM (American Society for Testing and Materials) stipulate the hardness standard of metal materials, the transmission standard of the carrier of hardness and the test instrument standard of hardness test. [0003] Taking the traditional Rockwell hardness tester as an example, it includes a frame on which an indenter and a dial indicator are installed, and a weight is installed in the frame, and the force of the weight is transmitted to the indenter through a lever, and the indenter is opposite to the indente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/40
Inventor 吴绍明吴查理
Owner 吴绍明
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