Device and method for detecting mechanical properties of solid wood boards by online analysis of fiber angle measured by laser

A technology of laser measurement and fiber angle, which is used in measurement devices, analysis materials, and material analysis by optical means. Low, the effect of increasing the detection speed and increasing the detection efficiency

Inactive Publication Date: 2019-10-18
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems that the existing mechanical testing machine will destroy the test piece when measuring the mechanical properties of the plate, and at the same time, it cannot carry out general inspection on the whole batch of plates, resulting in waste and large detection errors in the actual operation process. Device and method for detecting mechanical properties of solid wood boards by online analysis of fiber angle measured by laser

Method used

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  • Device and method for detecting mechanical properties of solid wood boards by online analysis of fiber angle measured by laser
  • Device and method for detecting mechanical properties of solid wood boards by online analysis of fiber angle measured by laser
  • Device and method for detecting mechanical properties of solid wood boards by online analysis of fiber angle measured by laser

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Experimental program
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specific Embodiment approach 1

[0025] Specific implementation mode one: combine figure 1 Describe this embodiment, the device that utilizes the on-line analysis of laser to measure the fiber angle of this embodiment to detect the mechanical properties of solid wood panels includes a workbench 1, a test bench main support frame 2, a laser generator 3, a camera 4 (with a lens), and the height of the camera Adjusting frame 5, synchronous drive shaft 6, horizontal motion stepping motor 8, longitudinal motion stepping motor, mobile clamping device 12 (including pneumatic clamping device) and two-axis slide table;

[0026] The two-axis slide table includes two longitudinal guide rail modules 9 and a transverse guide rail module 13, and the two longitudinal guide rail modules 9 are fixedly arranged on the board surface of the workbench 1; The longitudinal guide rail module 9, and the two longitudinal guide rail modules 9 move synchronously through the synchronous drive shaft 6; each longitudinal guide rail module...

specific Embodiment approach 2

[0030] Specific implementation mode two: combination figure 2 Describe this embodiment, the difference between this embodiment and specific embodiment 1 is: the mobile clamping device (including pneumatic clamping device) 12 includes:

[0031] Hand wheel 12-1, hand wheel lock 12-2, sliding table 12-3, first splint slide rail 12-4, cylinder 12-5, movable splint 12-6, rubber strip 12-7, static splint 12-8 , the second splint slide rail 12-9, the splint slider 12-10, the support frame 12-11, the main base plate 12-12 of the mobile clamping device;

[0032] The first splint slide rail 12-4 and the second splint slide rail 12-9 are respectively symmetrically fixed on the main base plate 12-12 of the mobile clamping device through two supports 12-11; the first splint slide rail 12-4 and the second splint slide rail 12-4 A splint slider 12-10 is respectively arranged on the two splint slide rails 12-9, and two splint slide blocks 12-10 slide on the second splint slide rail 12-9 and...

specific Embodiment approach 3

[0037] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that: the device also includes a loading platform limit rib 10 and a loading platform 11, and the loading platform 11 is located on the workbench 1, and the loading The stage limit rib 10 is located on one side of the object stage 11 and is used to limit the position of the plate to be measured on the object stage 11 .

[0038] The mobile clamping device 12 moves to the loading position, the loading position is the position where the edge of the stationary splint 12-8 is aligned with the sidewall 10 of the stage, and the plate to be measured on the stage 11 is manually pushed into the mobile clamping device 12, until the front end of the plate to be tested touches the front end of the stationary splint 12-8; turn the pneumatic switch 7 to the clamping position of the movable splint 12-6; the movable splint 12-6 is pushed forward by the cylinder 12-5, Clamp the plate t...

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Abstract

The invention provides a device and method for online analysis and detection of the mechanical property of a solid wood board by utilizing a laser measurement fiber angle, relates to a device and method for online analysis and detection of the mechanical property of a solid wood board and aims to solve the problem that a test piece is damaged and meanwhile a whole batch of boards cannot be screened when an existing mechanical testing machine determines the mechanical property of the board, and waste and large detection errors are produced in the actual operating process. The device for online analysis and detection of the mechanical property of the solid wood board by utilizing the laser measurement fiber angle comprises a worktable, a test table main supporting frame, a laser generator, a camera, a camera height adjusting frame, a synchronous drive shaft, a transverse moving stepping motor, a longitudinal moving stepping motor, a movable clamping device and a two-shaft slide table. The device is used in the field of mechanical property detection of the solid wood board.

Description

technical field [0001] The invention relates to a device and a method for on-line analysis and detection of the mechanical properties of solid wood boards. Background technique [0002] The current test method for the mechanical properties of the plate usually processes the plate to be tested into a standard pattern, and then uses a mechanical press to perform a compression (tension) experiment on the standard pattern, and calculates the standard by measuring the corresponding relationship between the tensile force and the deformation of the standard sample. The corresponding mechanical properties of the test pieces are used to determine the corresponding mechanical properties of the same batch of samples sent. However, since the mechanical testing machine usually destroys the test piece during the experiment, and cannot perform general inspection on the entire batch of plates, waste and large detection errors are generated in the actual operation process. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84
Inventor 张怡卓侯弘毅李超梁玉亮潘屾刘林张淼
Owner NORTHEAST FORESTRY UNIVERSITY
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