Virtual coordinate measurer based on data image treating and its measuring method

A technology of virtual coordinates and data images, applied in the field of machinery, can solve the problems of low cost, high price, and high cost, and achieve the effect of reducing construction cost, low-cost measurement, and simplifying the overall structure

A technology of virtual coordinates and data images, applied in the field of machinery, can solve the problems of low cost, high price, and high cost, and achieve the effect of reducing construction cost, low-cost measurement, and simplifying the overall structure

CN1786661AInactive Publication Date: 2006-06-14天津海达奥普光电技术股份有限公司
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  • Virtual coordinate measurer based on data image treating and its measuring method
  • Virtual coordinate measurer based on data image treating and its measuring method
  • Virtual coordinate measurer based on data image treating and its measuring method

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Experimental program
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Effect test

Embodiment 1

[0046] Such as figure 2 As shown, the present invention, as a virtual coordinate measuring machine based on data image processing, includes a working platform, a mechanical body, a measuring head, a computer and its peripherals, the measuring head is installed on the vertical shaft of the mechanical body, and an image acquisition device is also included. The granite platform is used as the working platform 1, because the deformation of the granite due to the influence of temperature is small. The main body of the machine is mainly composed of an air-floating slide 6, a vertical shaft 4, a measuring head 3 and a CCD camera 8. The image acquisition device is mainly composed of a CCD camera 8, a light source and an acquisition card 9. The air-floating slide 6 is perpendicular to the granite workbench. The vertical shaft 4, the cylinder and the measuring head are installed on the vertical shaft 4, which can move up and down along the vertical shaft and can be locked at any positi...

Embodiment 2

[0049] The overall composition and connection relationship are the same as in Embodiment 1, and there are 6 holes downwards on the air bearing slide 6 of the virtual coordinate measuring machine based on data and image processing, see image 3 , there are three holes evenly distributed along two different radial directions, and the three large holes are equipped with three air bearing sliders, that is, air static pressure bearings, which specifically adopt the circular air static pressure bearings developed by Xi'an Industrial Institute; The CCD camera 8 in the image acquisition device is installed in the hole. In order to ensure the high reliability of the measurement system, the present invention adopts an air-floating slide seat, a mechanism carrying multiple technical elements, on which a vertical shaft 4 and a measuring head 3 are installed, and a camera 8 and an air-floating block are installed under it, and the air-floating block That is, the aerostatic bearing has the ...

Embodiment 3

[0051] Overall composition and connection relation are the same as embodiment 1, as figure 2 As shown, the laser scanning probe is installed at the position where the probe 3 is installed in the figure, and the laser scanning probe is mainly used for non-contact measurement of soft materials or some characteristic surfaces. The measuring head is at a certain distance (such as 50mm) from the detection workpiece, and measures within a certain range of its focal point, and the sampling rate is above 200 points / second. Higher accuracy is obtained through the average processing function of a large amount of collected data. The application aspect of the present invention is expanded by installing the laser scanning measuring head, and the measuring ability for special materials is improved.

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Abstract

The invention relates to unreal coordinate measuring machine and method based on data image processing. It replaces traditional measuring machine mechanical type three coordinates measurement axis by unreal axis measuring machine and device. It includes working platform, mechanic main body, feeler pin, computer and its peripheral equipment, and image collecting device. The image collecting device is made up of CCD pickup camera, light source, and collection card. Gas float slide rest is set vertical shaft. The vertical shaft is set at the feeler pin. The bottom of the gas float slide rest is set light source and CCD pickup camera. The invention combines gas float technique and unreal shaft measuring, contacting measuring and non contacting measuring to create unreal coordinate measuring machine and method based on data image processing. The whole form is very simplify that the object and measuring system are set at the platform to finish low cost middle accuracy measuring cooperated with computer control and hand pushing measuring system.

Description

technical field [0001] The invention relates to precision measurement in the mechanical field, and mainly relates to a measurement device based on the concept of a virtual coordinate axis, which can realize medium-precision and low-cost three-coordinate size measurement. Specifically, it is a virtual coordinate measuring machine and its measuring method based on data image processing. Background technique [0002] The main method for detecting the size and contour of the workpiece is: by measuring the relative displacement between the probe and the workpiece, the spatial coordinate size of the workpiece is obtained, and the measurement result is given by computer processing. The essence of the coordinate measuring machine is to obtain the displacement information of the probe or the workpiece. The traditional displacement (coordinate) measurement is realized by the coordinate axis of the coordinate machine. The coordinate axes are all composed of mechanical components, and...

Claims

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Application Information

Patent Timeline
14 Jun 2006
Publication
CN1786661A
IPC
G01B21/04; G01B11/03
Inventors
张君安; 方舟