Automatic adding and discharging carrier of sclerometer and measuring cell

A technology of measurement unit and hardness tester, which is applied in the direction of testing the hardness of materials, etc., can solve the problems of low precision, actual depth measurement error, and bulky volume, and achieve the effects of high precision, no conversion deviation, and high repeatability

Inactive Publication Date: 2007-05-16
莱州华银试验仪器有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] (2) The application and removal of the test force of the conventional hardness tester is carried out through a set of complex mechanical system, which is lifted by the standard weight weight with the buffer system, and amplified by the lever, so that the force generated by the weight acts on the indenter In this way, the loading and unloading mechanism becomes complex in structure, bulky, and the accuracy cannot be reliably guaranteed. At the same time, the conversion between different test forces needs to be controlled by a complex load-changing mechanism.
[0004] (3) The indentation depth measurement mechanism of the traditional hardness tester is usually fixed on a rigid frame, which cannot realize tracking measurement
The indentation depth measurement mechanism is in contact with the main shaft equipped with the indenter, and the data measured by the indentation depth measurement mechanism is actually the displacement of the indenter relative to the frame, so when the rigidity of the workbench carrying the test piece is insufficient and the test piece is deformed Or when the rigidity of the frame is insufficient and relative deformation occurs before and after the test force is applied and removed, the dat

Method used

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  • Automatic adding and discharging carrier of sclerometer and measuring cell
  • Automatic adding and discharging carrier of sclerometer and measuring cell

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Design concept of the present invention is:

[0030] (1) In order to facilitate the connection with the frame, a supporting frame with an outer square and an inner circle is adopted.

[0031] (2) Stepping drive mechanism, high-precision pressure sensor and electric control system are adopted, and the gear transmission mechanism is driven by the stepping motor, thereby driving the ball screw to clamp the test piece, apply and remove the test force. Another function of the stepping drive mechanism to drive the ball screw is to realize the up and down movement of the indenter to adapt to the different heights of the test pieces.

[0032] (3) The test force spring is compressed by the ball screw, and the test force is transmitted to the spindle indenter through the test force spring; the application of the test force is realized i...

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Abstract

This invention discloses one metal and non metal hardness test and study meter automatic load and measurement unit, which comprises supportive rack, step drive structure, main axis loading structure, and main axis structure, clamping structure, print deepness measurement structure and electricity control structure. This invention can automatically trace print deepness to eliminate rack deformation and impact on test parts and can exert initial test force under slow impact status and can automatic clamp test parts free of size and weight impact.

Description

1. Technical field: [0001] The invention relates to a durometer used for testing and researching the hardness of metals and nonmetals, more specifically, it relates to an automatic load-unloading and measuring unit for the durometer. 2. Background technology: [0002] (1) The conventional hardness tester is to apply the test force on the spindle to the test piece through the indenter to form an indentation, and then calculate the hardness value of the metal and non-metal according to the size and depth of the indentation. [0003] (2) The application and removal of the test force of the conventional hardness tester is carried out through a set of complex mechanical system, which is lifted by the standard weight weight with the buffer system, and amplified by the lever, so that the force generated by the weight acts on the indenter In this way, the loading and unloading mechanism becomes complex in structure, bulky, and the accuracy cannot be reliably guaranteed. At the same ...

Claims

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Application Information

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IPC IPC(8): G01N3/42
Inventor 王英君王敬涛杨凤鸣曲广军
Owner 莱州华银试验仪器有限公司
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