A three-way force measuring device for scratch test instrument

Abstract

The invention discloses a three-way force measuring device for a scratch test instrument. A miniature weighing sensor (2) is installed in a sensor connection block (1). The Z-axis miniature tension-compression sensor (3) is installed to the sensor connection block (1) through the threaded hole (7), and the X-axis miniature tension-compression sensor (5) is installed to the sensor connection block (1) through the threaded hole (8). Connect the Z-axis connecting rod (4) through the thread of the Z-axis miniature tension-pressure sensor (3). Connect the Z-axis connecting rod (4) to the balance pull rod (6) through the thread of the X-axis miniature tension and pressure sensor (5). The invention provides a three-way force measuring device for a scratch test instrument, which has the advantages of being able to measure forces in three directions (X axis, Z axis and Y axis) at the same time, easy to replace sensors, economical and practical, and the like.

Description

technical field [0001] The invention relates to a measuring device, in particular to a three-way force measuring device used for a scratch test instrument. Background technique [0002] At present, most of the scratch test instruments on the market have a relatively simple structure, and most of their functions are only to complete a simple single scratch test. During the test, different loads can only be completed by loading a constant weight on the scratch head. / Scratch test at different depths. However, after the test is completed, we can only rely on microscopic observation methods to judge the scratch resistance of the surface of the material, such as the shape, width, and depth, and cannot obtain the real-time normal force or tangential force during the scratch process. Data, and for a single complex form (circle, square) scratch, it is impossible to obtain effective real-time test data during the scratch test process. For some expensive scratch test instruments, a...

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Problems solved by technology

[0002] At present, most of the scratch test instruments on the market have a relatively simple structure, and most of their functions are only to complete a simple single scratch test. During the test, different loads can only be completed by loading a constant weight on the scratch head. / Scratch test at different depths

However, after the test is completed, we can only rely on microscopic observation methods to judge the scratch resistance of the surface of the material, such as the shape, width, and depth, and cannot obtain the real-time normal force or tangential force during the scratch process. Data, and for a single complex form (circle, square) scratch, it is impossible to obtain effective real-time test data during the scratch test

For some expensive scratch test instruments, although the data in the scratch test process can be measured in real time, the scope of application of the measurement system is limited, most of them can only measure the force in the two-axis direction, and cannot complete the single complex scratch Real-time data measurement in the form of traces; and the high price makes the cost significantly increased

[0003] In addition, the three-way force sensor is expensive to use alone, and limited by its own structure, the range and accuracy in each direction have certain limitations

Moreover, the measurement range and parameters of each axis cannot be changed during use, which limits its use range

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