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A method for cutting a PVC board based on a Mark point position function

A PVC board and point positioning technology, applied in the direction of instruments, image feedback, manufacturing tools, etc., can solve the problems of large errors, low efficiency, and long time consumption, and achieve the effects of small loss of accuracy, strong robustness, and improved operating efficiency

Active Publication Date: 2019-02-01
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0004] In order to overcome the disadvantages of the existing engraving and milling machine positioning methods, such as low efficiency, long time consumption, large errors and excessive manual intervention, the present invention proposes a method for cutting PVC boards based on the Mark point positioning function

Method used

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  • A method for cutting a PVC board based on a Mark point position function
  • A method for cutting a PVC board based on a Mark point position function
  • A method for cutting a PVC board based on a Mark point position function

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Embodiment Construction

[0056] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0057] refer to Figure 1 to Figure 6 , a method for cutting PVC boards based on the Mark point positioning function, comprising the following steps:

[0058] 1) First, if figure 1 As shown, install the industrial camera near the spindle of the engraving and milling machine, such as figure 2 As shown, the relative offset between the camera and the main axis is calculated by the function of camera offset tool setting X s and Y s . The ratio P between the coordinates of the known cutting file program and the actual working coordinate system 1 :1, the conversion ratio between the camera coordinate system and the cutting file program is calculated by the Mark point imaging of the current height camera as P 2 :1, where image 3 The maximum range of the shown camera coordinate system is (X c ,Y c ).

[0059] 2) Secondly, the engraving and milling machine formula...

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Abstract

A method for cutting a PVC board based on a Mark point position function features that an industrial camera is installed near that main axis of engraving and mil machine, and the relative deviation between the camera and the main axis is calculated by the function of biasing cutter of the camera. The engraving and milling machine formulates the strategy of searching Mark point according to the cutting procedure file; By searching Mark point strategy, four pairs of Mark point center coordinates and the current spindle coordinates fed back when the control board finds Mark point are obtained byindustrial camera respectively, and the coordinates of current camera coordinate system are converted into the coordinate system of cutting program file according to the Formosan rock; and the coordinate system of current camera coordinate system is converted into the coordinate system of cutting program file by industrial camera. The coordinates of the four converted Mark points are compared withthe coordinates of the Mark points in the coordinate system of the cutting program file. If no offset occurs, the position of the PVC material is normal. If there is an offset, the position of the PVC material is corrected. The method of the invention can improve the running efficiency of the machine.

Description

technical field [0001] The invention belongs to the technical field of high-precision numerical control equipment automation, and relates to a method of combining machine vision and Mark point auxiliary positioning in an engraving and milling machine, so that the method can effectively improve the cutting accuracy when cutting PVC boards. Background technique [0002] Engraving and milling machine is a kind of CNC machine tool widely used in major factories and enterprises in China. It has the advantages of small tool, high power, high-speed spindle and the ability to process relatively hard materials, making up for the shortcomings of cutting machines and engraving machines. place. Its appearance greatly reduces the production cost of processing high-hardness materials, improves the automation level of the engraving and milling industry, and reduces the manual work. Users can also adjust the parameters to adapt to different production needs and improve the quality of finis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/73G06T1/00B23C3/00B26D1/00
CPCB23C3/00B26D1/00G06T1/0014G06T7/73
Inventor 董辉张斌豪毛小海俞立张文安滕游
Owner ZHEJIANG UNIV OF TECH
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