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System and method used for realizing online three-coordinate equipment measurement

A three-coordinate measurement and measurement system technology, which is applied in the direction of measuring devices, instruments, and optical devices, can solve problems such as inability to measure, distortion of measurement data, and accumulation of measurement errors.

Inactive Publication Date: 2018-08-24
IAT AUTOMOBILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, different three-coordinate measuring equipment has defects in its own design, which makes it impossible to measure the characteristic elements required for large parts at one time. For example: ①Double cantilever three-coordinate measuring machine: usually used in major OEMs Skeleton accuracy measurement, however, some hidden feature elements in the body-in-white frame cannot be measured due to the interference between the body-in-white frame and the measuring arm; When measuring the body frame, due to its own design, the effective distance of the arm length is usually within 3m, and multiple coordinate transformations are required to complete the measurement task of the body frame in white; however, the accuracy level of each coordinate transformation will decrease, and the measurement error will accumulate. , resulting in distortion of measurement data, which is not conducive to the resolution of precision matching problems

Method used

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  • System and method used for realizing online three-coordinate equipment measurement
  • System and method used for realizing online three-coordinate equipment measurement
  • System and method used for realizing online three-coordinate equipment measurement

Examples

Experimental program
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Effect test

Embodiment 1

[0035] like figure 1 As shown, the online measurement system for three-coordinate equipment in this embodiment includes a body-in-white measurement platform 10, a body-in-white frame assembly 20, three standard balls 30, and a double cantilever three-coordinate The measuring device 40 is a portable laser measuring device 50; the steps of online and synchronous measurement of the double cantilever three-coordinate measuring device 40 and the portable laser measuring device 50 are as follows:

[0036] Use the double-cantilever three-coordinate measuring device 40 to establish the component coordinate system; within the measuring stroke range of the portable laser measuring device 50, fix at least 3 standard spheres 30, and the positions of the 3 standard spheres 30 should cover the measurement characteristic range to the greatest extent .

[0037] Measure the position of the center of the fixed standard ball 30 under the component coordinate system, and record the value;

[00...

Embodiment 2

[0042] like Figure 2-3 As shown, the online measurement system for three-coordinate equipment in this embodiment includes a body-in-white measurement platform 10, a body-in-white frame assembly 20, six standard balls 30, and a double cantilever three-coordinate Measuring device 40, a portable laser tracker 50 and a portable multi-joint measuring device 60; the one double-cantilever three-coordinate measuring device 40 is located on the body-in-white measuring platform 10, and the portable multi-joint measuring device 60 is located on the body-in-white skeleton On the body-in-white measurement platform 10 at the front end of the assembly 20, the portable laser tracker measurement device 50 is located on the measurement platform 10 at the rear end of the body-in-white frame assembly 20, and the six standard balls 30 are also respectively arranged on the body-in-white frame assembly 20 The front end and the rear end, and any three of them are not on the same straight line. The ...

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Abstract

The invention relates to a system and method used for realizing online three-coordinate equipment measurement and belongs to the technical field of body-in-white precision measurement. The system comprises a body-in-white measurement platform, a body-in-white framework assembly arranged on the body-in-white measurement platform and at least three standard balls and N pieces of three-coordinate measurement equipment, wherein the N is a natural number not smaller than 2, the N pieces of three-coordinate measurement equipment are in the same coordinate through fitting, different technical advantages of the N pieces of three-coordinate measurement equipment can be performed, measurement tasks of the N pieces of three-coordinate measurement equipment can be simultaneously carried out, and thereby all the body-in-white measurement characteristics and all the dimensions can be monitored.

Description

technical field [0001] The present invention relates to the technical field of precision measurement of body-in-white, and more specifically, the present invention relates to a system and method for realizing on-line measurement of three-coordinate equipment. Background technique [0002] In the existing technology, all large automobile OEMs purchase different types of three-coordinate measuring equipment to monitor the accuracy of the body-in-white skeleton. The commonly used types mainly include double-cantilever three-coordinate measuring machines, portable multi-joint three-coordinate measuring machines, portable laser tracking Instruments, etc., and choose different equipment according to the parts and characteristics that need to be measured. However, different three-coordinate measuring equipment has defects in its own design, which makes it impossible to measure the characteristic elements required for large parts at one time. For example: ①Double cantilever three-co...

Claims

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Application Information

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IPC IPC(8): G01B21/00G01B11/00
CPCG01B11/005G01B21/00
Inventor 陈天放底朝龙段士蕊
Owner IAT AUTOMOBILE TECH
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