CN110953986B - Non-contact type automatic plate size measuring equipment - Google Patents

Non-contact type automatic plate size measuring equipment Download PDF

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Publication number
CN110953986B
CN110953986B CN201911185695.4A CN201911185695A CN110953986B CN 110953986 B CN110953986 B CN 110953986B CN 201911185695 A CN201911185695 A CN 201911185695A CN 110953986 B CN110953986 B CN 110953986B
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detection
plate
primary
light source
size
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CN110953986A (en
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刘怀广
周诗洋
刘安逸
杨金堂
崔可涛
蔡煜
李佳
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Wuhan University of Science and Engineering WUSE
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Wuhan University of Science and Engineering WUSE
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/02Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention discloses non-contact automatic measuring equipment for the size of a plate, which comprises a primary detection device, a secondary detection device and a control device, wherein the primary detection device is used for carrying out primary detection on the size of the plate and consists of a primary detection linear array camera, a primary detection photoelectric switch, a primary detection system support, a primary detection linear array light source and a primary detection light source shading plate; the size precise detection device is used for precisely measuring the size of the plate and consists of a left detection linear array camera, a movable right detection linear array camera, a precise detection photoelectric switch, a precise detection linear array light source, a precise detection system support, a precise detection light source shading plate, a servo motor, a lead screw and a linear guide rail; the detection machine table is provided with a plate delivery device and is used for conveying plates; and the control cabinet is connected with the primary detection device and the size fine detection device and used for processing and analyzing images to obtain the accurate size of the plate and finish the recording and counting work of size information. The non-contact automatic plate size measuring equipment has good flexibility, and solves the problems of low manual detection efficiency and incapability of real-time detection.

Description

Non-contact type automatic plate size measuring equipment
Technical Field
The invention relates to the technical field of plate measurement, in particular to non-contact type plate size automatic measuring equipment.
Background
The wood board is a common commodity raw material in daily life of people and is also an important component of furniture, and the size of the wood board has important influence on the quality of the assembled finished furniture. Therefore, the realization of automatic detection of the plate size and the improvement of the size detection precision has profound influence on the improvement of the production efficiency of enterprises and the guarantee of the product quality. The specification and the size of plank are not of uniform size (200 ~ 2000mm) on the present processing production assembly line, and change at any time, and the automatic degree of difficulty that detects is big, and it detects mainly to lean on artifical sampling to detect, and it just is influenced by staff's mood to detect still has the hysteresis quality, greatly reduced production efficiency. However, the increasing production capacity (high speed, large format) and quality level (high precision dimension inspection) make manual inspection unsatisfactory. The method is mainly characterized in that:
(1) the speed is low, and missing detection and false detection are easy to generate;
(2) occupy a large amount of resources and cannot ensure a uniform quality standard.
The patent with application number 201810811772.1 discloses a plank size short-term test device, has adopted gear and belt drive to carry out mechanical measurement's mode, and the process is loaded down with trivial details, and the flexibility is poor. Patent application No. 201810017643.5 discloses a plank size detection device for building monitoring, utilizes chain drive and worm gear transmission to measure building board, and the device is a contact measurement mode, and efficiency is lower, and the precision is poor. In order to improve the production efficiency and the product quality of the plate industry and avoid causing labor waste, some non-contact means are required for measurement.
Disclosure of Invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a non-contact automatic measuring device for sheet material dimensions, which can perform real-time dimension detection on a sheet material on a production line, complete the recording and statistics of dimension information, and solve the problems of low manual detection efficiency and incapability of real-time detection.
In order to solve the technical problem, the invention provides a non-contact type automatic plate size measuring device, which comprises:
the primary detection device is used for carrying out primary detection on the size of the plate and consists of a primary detection linear array camera, a primary detection photoelectric switch, a primary detection system support, a primary detection linear array light source and a primary detection light source shading plate;
the size precise detection device is used for precisely measuring the size of the plate and consists of a left detection linear array camera, a right detection linear array camera capable of moving rapidly, a precise detection photoelectric switch, a precise detection linear array light source, a precise detection system support, a precise detection light source shading plate, a servo motor, a lead screw and a linear guide rail;
the detection machine table is provided with a plate delivery device and is used for conveying plates;
and the control cabinet is connected with the primary detection device and the size fine detection device and used for processing and analyzing images to obtain the accurate size of the plate and finish the recording and counting work of size information.
In one implementation of the present invention, the preliminary inspection system support is of a gantry structure, and is disposed on the inspection machine and spans two sides of the inspection machine;
a first box body is arranged at the top of the initial detection system support and is positioned right above the detection machine table, the initial detection linear array camera is arranged in the first box body right above the detection machine table, and the initial detection linear array light source is positioned at the lower side of the detection machine table and is used for illuminating in a rear projection mode;
the primary inspection light source shading plate is arranged on the primary inspection system bracket and spans the detection machine platform; the primary inspection photoelectric switch is fixed on the left side of the detection machine table and below the primary inspection light source light shading plate.
Furthermore, the fine inspection system support is of a gantry structure and is arranged on the detection machine table and spans two sides of the detection machine table;
the servo motor and the linear guide rail are arranged on a support right above the detection machine table, the left linear detection camera is installed on one side of the linear guide rail, the right linear detection camera is arranged on the other side of the linear guide rail, the right linear detection camera can move on the linear guide rail, and the position of the right linear detection camera is accurately controlled by the servo motor;
the fine inspection light source shading plate is arranged on the fine inspection system bracket and spans the detection machine table;
the fine inspection linear array light source is arranged on the lower side of the inspection machine table, and is used for illuminating in a rear projection mode and polishing upwards from the bottom side of the plate.
In one implementation of the invention, a second box body is arranged at the top of the fine inspection system bracket and right above the detection machine table, the lower part of the second box body is provided with a linear opening, and positive pressure gas is introduced into the second box body; the servo motor and the linear guide rail are arranged in the second box body.
Furthermore, the lower end of the first box body is a linear opening, and positive pressure gas is filled in the first box body.
In one embodiment of the present invention, the precise inspection photoelectric switch is fixed on the left side of the inspection machine and below the light shielding plate of the precise inspection light source.
The implementation of the invention has the following beneficial effects:
the non-contact automatic measuring equipment for the plate size can detect the size of the plate on a production line in real time, record and statistic work of size information is completed, the initial detection device is used for performing initial detection on the plate, and then the fine detection device camera is automatically moved according to the initial size of the plate to adapt to size detection of plates of different models.
Drawings
FIG. 1 is a schematic structural diagram of an automatic non-contact measuring device for sheet material dimensions provided by the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a flow chart of the detection of the automatic non-contact measuring equipment for the sheet material dimension provided by the invention.
In the figure: 1-detection machine table, 2-fine detection linear array light source, 3-fine detection photoelectric switch, 4-fine detection light source shading plate, 5-fine detection system support, 6-left detection linear array camera, 7-preliminary detection photoelectric switch, 8-lead screw, 9-right detection linear array camera, 10-preliminary detection system support, 11-preliminary detection linear array camera, 12-servo motor, 13-preliminary detection light source shading plate, 14-plate to be detected, 15-preliminary detection linear array light source, 16-control cabinet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the non-contact type automatic measuring equipment for the plate size of the present invention includes a primary inspection device, a size fine inspection device, a detection machine 1 and a control cabinet 16, wherein the detection machine 1 is provided with a plate delivery device for transporting plates, and the control cabinet 16 is provided with a computer and a circuit control system.
The initial inspection device is used for initially detecting the size of a plate and comprises an initial inspection linear array camera 11, an initial inspection photoelectric switch 7, an initial inspection system support 10, an initial inspection light source shading plate 13 and an initial inspection linear array light source 15. The primary detection system support 10 is of a gantry structure and is arranged on the detection machine table 1 and stretches across two sides of the detection machine table 1, a box body structure is arranged at the upper end of the primary detection system support 10, the primary detection linear array camera 11 is arranged in a first box body right above the detection machine table 1, the lower end of the box body is a linear opening, positive pressure gas is arranged inside the box body, dust prevention and cooling are achieved, a primary detection light source light shading plate 13 is further installed on the primary detection system support 10, the primary detection light source light shading plate 13 stretches across the detection machine table 1 to prevent external light interference, the primary detection light source 15 is located on the lower side of the machine table and illuminates in a back projection mode, and the primary detection photoelectric switch 7 is fixed on the left side of the detection machine table 1 and below the primary.
The size precise detection device is used for precisely measuring the size of a plate and consists of a left detection linear array camera 6, a movable right detection linear array camera 9, a precise detection photoelectric switch 3, a precise detection linear array light source 2, a precise detection system bracket 5, a precise detection light source shading plate 4, a servo motor 12, a lead screw 8 and a linear guide rail. The precise detection system support 5 is of a gantry structure and is arranged on the detection machine table 1 and stretches across two sides of the machine table, the servo motor 12 and the linear guide rail are arranged on the support right above the detection machine table, the precise detection light source light shielding plate 4 is further arranged on the support, the precise detection light source light shielding plate 4 stretches across the detection machine table 1, and the precise detection photoelectric switch 3 is fixed on the left side of the detection machine table 1 and below the precise detection light source light shielding plate 4. The left detection linear array camera 6 is installed on one side of the linear guide rail, the right detection linear array camera 9 is arranged on the other side of the linear guide rail, the right detection linear array camera 9 can move on the linear guide rail, the position of the right detection linear array camera is accurately controlled by a servo motor 12, the fine detection linear array light source 2 is arranged on the lower side of the detection machine table 1, illumination is carried out in a rear projection mode, and light is emitted upwards from the bottom side of a plate.
In addition, a second box body is arranged at the top of the fine detection system bracket 5 and right above the detection machine table 1, the lower part of the second box body is provided with a linear opening, and positive pressure gas is introduced into the second box body; the servo motor 12 and the linear guide rail are arranged in the second box body.
The invention can carry out real-time size detection on the plates on the production line, complete the recording and statistical work of size information, carry out preliminary detection on the plates by the preliminary detection device, and then automatically move the fine detection device camera according to the preliminary sizes of the plates to adapt to the size detection of the plates with different models.
The working principle of the non-contact type automatic plate size measuring equipment is as follows:
after starting up, the plates on the production line move to the left after edge sealing (the right side is sealed and then the left side is sealed), when the plates on the production line pass through the detection machine table 1, the primary detection photoelectric switch 7 in the primary detection device detects that the plates generate an electric signal, the switch of the primary detection linear array light source 15 is triggered, the primary detection linear array camera 11 is started to start photographing at the same time, after the completion, the images are transmitted to the computer in the control cabinet 16 to be processed to obtain the primary width size of the plates, the servo motor 12 is controlled according to the primary size of the plates to drive the movable right detection camera 9 in the size fine detection device to move to the right linear array boundary position of the plates to be photographed, when the plates pass through the size fine detection device, the fine detection photoelectric switch 3 in the size fine detection device detects that the plates generate an electric signal, the fine detection light source 2 and the left and right detection cameras in the size fine detection device are started to be synchronized, the two, and finally, processing the image by using a computer, calculating to obtain the accurate size of the plate, and finishing the recording and counting work of the size information.
The foregoing is directed to the preferred embodiment of the present invention, and it is understood that various changes and modifications may be made by one skilled in the art without departing from the spirit of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.

Claims (4)

1. A non-contact automatic measuring device for the dimension of a sheet material is characterized by comprising:
the primary detection device is used for carrying out primary detection on the size of the plate and consists of a primary detection linear array camera, a primary detection photoelectric switch, a primary detection system support, a primary detection linear array light source and a primary detection light source shading plate;
the size precise detection device is used for precisely measuring the size of the plate and consists of a left detection linear array camera, a movable right detection linear array camera, a precise detection photoelectric switch, a precise detection linear array light source, a precise detection system support, a precise detection light source shading plate, a servo motor, a lead screw and a linear guide rail;
the detection machine table is provided with a plate delivery device and is used for conveying plates;
the control cabinet is connected with the primary detection device and the size fine detection device and is used for processing and analyzing images to obtain the accurate size of the plate and finish the recording and counting work of size information;
the initial detection system support is of a gantry structure and is arranged on the detection machine table and stretches across two sides of the detection machine table;
a first box body is arranged at the top of the initial detection system support and is positioned right above the detection machine table, the initial detection linear array camera is arranged in the first box body right above the detection machine table, and the initial detection linear array light source is positioned at the lower side of the detection machine table and is used for illuminating in a rear projection mode;
the primary inspection light source shading plate is arranged on the primary inspection system bracket and spans the detection machine platform; the primary inspection photoelectric switch is fixed on the left side of the inspection machine platform and below the primary inspection light source shading plate;
the fine detection system bracket is of a gantry structure and is arranged on the detection machine table and stretches across two sides of the detection machine table;
the servo motor and the linear guide rail are arranged on a support right above the detection machine table, the left linear detection camera is installed on one side of the linear guide rail, the right linear detection camera is arranged on the other side of the linear guide rail, the right linear detection camera can move on the linear guide rail, and the position of the right linear detection camera is accurately controlled by the servo motor;
the fine inspection light source shading plate is arranged on the fine inspection system bracket and spans the detection machine table;
the fine inspection linear array light source is arranged on the lower side of the inspection machine table, and is used for illuminating in a rear projection mode and polishing upwards from the bottom side of the plate.
2. The non-contact automatic measuring equipment for the plate dimension as claimed in claim 1, wherein a second box body is arranged at the top of the fine detection system bracket and right above the detection machine table, the lower part of the second box body is a linear opening, and positive pressure gas is introduced into the second box body; the servo motor and the linear guide rail are arranged in the second box body.
3. The non-contact type automatic measuring equipment for the plate dimension as claimed in claim 1, wherein the lower end of the first box body is a linear opening, and positive pressure gas is filled in the first box body.
4. The non-contact type automatic measuring equipment for the plate dimension as claimed in claim 1, wherein the fine inspection photoelectric switch is fixed on the left side of the inspection machine and below a light shielding plate of a fine inspection light source.
CN201911185695.4A 2019-11-27 2019-11-27 Non-contact type automatic plate size measuring equipment Active CN110953986B (en)

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Publication number Priority date Publication date Assignee Title
CN111829438A (en) * 2020-07-14 2020-10-27 江苏力维智能装备有限公司 High-efficient plate size through type survey station
CN113532292B (en) * 2021-09-17 2022-02-18 中科元象(常州)智能装备有限公司 Online size detection system for plates and working method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005156431A (en) * 2003-11-27 2005-06-16 Jfe Steel Kk Apparatus and method of measuring plate width
CN103075962A (en) * 2013-01-07 2013-05-01 电子科技大学 Automatic equipment for detecting plate holes and slot positions of furniture plate and realization method thereof
CN106181981A (en) * 2016-09-28 2016-12-07 天津工业大学 A kind of three-dimensional machinery arm configuration measured for camera scanning steel plate
CN207050671U (en) * 2017-05-23 2018-02-27 洛阳兰迪玻璃机器股份有限公司 A kind of glass sheet size detection means
CN110346298A (en) * 2019-07-30 2019-10-18 北京允升吉电子有限公司 A kind of SMT steel plate automatic checkout equipment and its detection method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005156431A (en) * 2003-11-27 2005-06-16 Jfe Steel Kk Apparatus and method of measuring plate width
CN103075962A (en) * 2013-01-07 2013-05-01 电子科技大学 Automatic equipment for detecting plate holes and slot positions of furniture plate and realization method thereof
CN106181981A (en) * 2016-09-28 2016-12-07 天津工业大学 A kind of three-dimensional machinery arm configuration measured for camera scanning steel plate
CN207050671U (en) * 2017-05-23 2018-02-27 洛阳兰迪玻璃机器股份有限公司 A kind of glass sheet size detection means
CN110346298A (en) * 2019-07-30 2019-10-18 北京允升吉电子有限公司 A kind of SMT steel plate automatic checkout equipment and its detection method

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基于视觉显著性和稀疏表示的钢板表面缺陷图像检测方法研究;周诗洋;《中国博士学位论文全文数据库 工程科技Ⅰ辑》;20190115(第01期);B022-25 *

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