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Granite step gauge measuring device

A measuring device, granite technology, applied in the direction of measuring devices, mechanical measuring devices, mechanical devices, etc., can solve the problems of easy rust, inconvenient operation, temperature deformation, etc., and achieve the effect of high measurement accuracy, simple structure and low cost

Inactive Publication Date: 2006-10-25
GUANGDONG OCEAN UNIVERSITY
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AI Technical Summary

Problems solved by technology

Due to the influence of manufacturing accuracy, temperature deformation, easy to rust, and inconvenient operation, ordinary steel step rails only played a certain role in the early measurement of the axial scale error of machine tools, and have not been widely promoted and applied.

Method used

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  • Granite step gauge measuring device
  • Granite step gauge measuring device
  • Granite step gauge measuring device

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Experimental program
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Effect test

Embodiment Construction

[0011] Such as figure 1 , 2 Shown in , 3, the granite step distance gauge that granite (marble) is made. Granite is made from high-quality underground rock layers. After hundreds of millions of years of natural aging, the shape is extremely stable, and there is no need to worry about deformation due to conventional temperature differences. The general steel line expansion coefficient is 1.17×10 -5 / ℃, cast iron is 1.0×10 -5 / ℃, copper is 1.7×10 -5 / °C. That is to say, when the temperature rises by 1°C, a 1-meter-long steel will elongate by 11.7 μm, a 1-meter-long cast iron will elongate by 10.0 μm, and a 1-meter-long copper will elongate by 17.0 μm. If the above materials are used as standard parts to measure the error of the machine tool, there will undoubtedly be a large measurement error. The granite material selected through rigorous physical tests has fine crystallization, hard texture, compressive strength of 2290-3750 kg / cm2, and hardness of Ta Mok's hardness of 6...

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Abstract

A granite step-pitch gage measuring device is composed of the granite step-pitch gage and the displacement sensor. Because of the accuracy of the granite step-pitch gage and the sensor, it can be used in the workshop to measure the error of the machine axis to a series discrete point. So it can reach the evaluation of the machine accuracy and the compensation of the pitch error. The invention can resist the wearing, acid, alkali, rust and cost little, especially it has the high measurement accuracy.

Description

technical field [0001] The invention belongs to a device for measuring the single-axis axial positioning error of a numerical control device, in particular to a measuring device for a granite step gauge. Background technique [0002] For the measurement and evaluation of the position accuracy of CNC machine tools, the international standard IS0230-2: 1997 (test code for machine tools-part 2: Determination of accuracy and repeatability of positioning numerically controlled axes) and the national standard GB10931-89 both recommend the use of laser interferometers (Laser Interferometer ). The laser interferometer has high measurement accuracy, which can generally reach 0.1 μm. However, the laser interferometer takes a long time to measure, requires special personnel to operate, and has high environmental requirements. It is generally not suitable for use in a workshop environment, and it is expensive. Therefore, it is not an ideal measuring device. At present, it is also rec...

Claims

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Application Information

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IPC IPC(8): B23Q17/00G01B5/02G01B21/02
Inventor 刘焕牢
Owner GUANGDONG OCEAN UNIVERSITY
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