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Multi-workpiece contour real-time measurement method and measurement system

A technology of real-time measurement and multiple workpieces, which is applied in the field of motion trajectory planning and real-time three-dimensional display of data, can solve the problems of inability to meet the needs of various workpiece measurement, poor user experience, and inability to flexibly expand the measurement workpiece, so as to improve the measurement Efficiency and accuracy, the effect of easy operation

Pending Publication Date: 2021-12-17
EAST CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional workpiece measurement software still has the following shortcomings: Most of them only measure a single workpiece, such as a specific component such as an aviation blade, which cannot meet the measurement requirements for multiple workpieces, that is, it cannot flexibly expand the measurement workpiece
[0005] In addition, most of the current workpiece measurement software only realizes the function of saving real-time data in the background of the software, and cannot display the discrete point information of the current measurement on the software interface in three dimensions in real time, and cannot allow users to visually view the current measurement process; in addition, most workpiece measurement The software also has the disadvantages of backward design of user graphical interface and poor user experience

Method used

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  • Multi-workpiece contour real-time measurement method and measurement system
  • Multi-workpiece contour real-time measurement method and measurement system
  • Multi-workpiece contour real-time measurement method and measurement system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Arched body, for example, bus arch equation used when measured like figure 1As shown, the rectangular coordinate system, provided X-axis moving step is 1mm, z = 0 to make available the X coordinate range [-120,120] for x = 0, for example, x = 0 is substituted into the trajectory of the present invention planning method step in equation 4, the value obtained triplet (θ, Z, X) are (0,0,0), corresponding to the first point, i.e. a planned trajectory B, Z, X triaxial specific location, then the mobile unit step x, calculating a second three-axis corresponding to specific location points, the process cycle, until x 120 is moved to the border, has been computed for the upper arch from each layer corresponding to the actuator the specific location information of three control axes X / Z / B, and returns a list of all triplets, i.e., the planning completed arcuate track body, the automatic measuring three control axes X / Z / B according to the measurement to complete the automati...

Embodiment 2

[0048] To the sphere, for example, the bus equation used to measure spheres Z = 0 can be obtained so x∈ [-44,44], the subsequent process comprising: x = 0, for example, x = 0 is substituted into the trajectory planning method according to the present invention, the step of formula 4 can be obtained by triple ( value θ, Z, x) are (0,0,0), corresponding to the specific position of the first point, i.e. a planned trajectory B, Z, x of the three-axis, then the mobile unit step x, the second point is calculated three-axis position corresponding to the specific cycle of the process until a boundary 44 is moved to the x, it has been calculated for the ball from the actuation information of the specific location of each layer corresponding to three control axes x / Z / B returns list of all triplets, i.e., the completion of the planning of the track ball, the automatic control of three measurement axes X / Z / B continues to move to each triplet in the list represents the logic flow of t...

Embodiment 3

[0050] Three-dimensional real-time display function, automatic measurement process to obtain real-time data will not only be saved to a local file, will be sent to the Handler processing data, but the data transfer between them is to use the Prism framework publish / subscribe model to pass first posted good uniform and subscriber defined above the data transmission format, such as double [] type, publisher publishing functions continue to deliver real-time call data, the recipient use the callback function receives the data and trigger processing, publishing the model to achieve Fang and decoupling of subscribers. Handler is calculated as the logic of the received data, the coordinates of discrete points obtained at the current measurement of the spatial rectangular coordinate system (x, y, z), publish and subscribe model by the coordinates to maintain the three-dimensional display of the UI control the bottom of the code, the code then calls the bottom distal end pushes the code...

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Abstract

The invention discloses a multi-workpiece contour real-time measurement method. The method comprises the following steps of: (1) firstly, acquiring a generatrix equation Z=f(x) of an object to be measured; (2) solving a differential f'(x) of the generatrix equation; (3) defining the step length x of the horizontal movement of a measurement point in a rectangular coordinate system; (4) calculating positions corresponding to B / X / Z three axes of the current measurement point by using a formula, and adding a calculation result, namely position information of the B / X / Z three axes, into a list; (5) moving the unit step length to a next measurement point, and repeating the steps 4 and 5 until all measurement points are traversed; and (6) determining a list containing the B / X / Z three-axis position information corresponding to all the measurement points to be a measurement track of the object. The invention further discloses implementation of a real-time three-dimensional echo module. The invention further discloses a system for implementing the measurement method. According to an abstract trajectory planning algorithm provided by the invention, the defect that workpiece measurement software can only measure a single workpiece is overcome, and the requirement of using unified software to measure various workpieces is met.

Description

Technical field [0001] The present invention belongs to the field of software development industry, relates to trajectory planning and real-time data flow and the data transfer three-dimensional display technology. Background technique [0002] Shaft holes workpiece is typical of machinery parts aerospace field, shipbuilding, energy and power, such matching hole accuracy of the workpiece, the shaft is one of the homeostasis affect fuel efficiency and key technical indicators, it is directly related to performance parts and durability. [0003] High-quality, high-precision machining of complex components can not be separated with high precision and high efficiency detection. Workpiece detecting measurement techniques become more important as a result of the production of security. High precision measurement technology requires not only a variety of hardware support, such as spectral confocal sensor, laser interferometer, the grating and other optical instruments, also requires spe...

Claims

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Application Information

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IPC IPC(8): G01B11/24
CPCG01B11/2441
Inventor 王江涛邬梓健
Owner EAST CHINA NORMAL UNIVERSITY
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