CN111069072A - Detection system for multiple cameras and multiple threads - Google Patents
Detection system for multiple cameras and multiple threads Download PDFInfo
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- CN111069072A CN111069072A CN201911406839.4A CN201911406839A CN111069072A CN 111069072 A CN111069072 A CN 111069072A CN 201911406839 A CN201911406839 A CN 201911406839A CN 111069072 A CN111069072 A CN 111069072A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
- B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/38—Collecting or arranging articles in groups
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Closed-Circuit Television Systems (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a detection system and a detection method for multiple threads of multiple cameras, wherein the detection system comprises a rack, a PLC (programmable logic controller) and an industrial personal computer, wherein a vibration disc which enables the direction of a workpiece to be detected to be uniform is arranged on the rack; a discharging channel of the vibrating disc is connected to the feeding mechanism; the device also comprises a transparent turntable driven to rotate by a stepping motor; a feeding area, a photographing area and a blanking area are sequentially arranged along the periphery of the transparent turntable; a plurality of stations are uniformly arranged on the transparent turntable, and each station is used for placing a product; the photographing area at the side of the transparent turntable is sequentially provided with two photographing positions; the blanking area is provided with three blanking boxes in sequence: OK blanking box, NG blanking box and tail box. The system has the following advantages: 1) the plasticity is strong: the test device can be modified into a product similar to the test device, and the hardware part basically does not need to be replaced, so that the cost is further saved. 2) The operation is simple: the system develops a parameter setting window, is convenient to debug and can be completed by production personnel.
Description
Technical Field
The invention discloses a detection system, in particular to a detection system with a plurality of cameras and a plurality of threads.
Background
In the process of metal powder metallurgy, the production of MIM components and parts needs large procedures such as injection molding, sintering and the like. In the process, the quality of the product is most dependent on the quality of the corresponding technologies such as grinding tool and sintering, and the inspection-free product is difficult to achieve at present, so that the detection of the product is an essential link. At present, the following detection methods are mainly adopted:
the introduction of machine vision has also developed rapidly in the industry.
1) The traditional detection methods, such as calipers, diaphragms and the like, have low efficiency and cannot meet the production requirements.
2) An automated visual inspection method is adopted. The method can automatically feed materials, and utilize the PLC to control the camera to take pictures, test, automatically feed materials and the like.
In the process of researching and practicing the size of the product, the inventor finds that the manual operation efficiency is low, when the automatic test is adopted, a large test space is remained when one camera tests one part, the space waste is easy to cause, and in order to meet the production requirement, the number of machines needs to be increased by several times, so that the invention provides the test method for multiple threads of one camera, and the production requirement can be met on the premise of reducing the number of machines.
Disclosure of Invention
The present invention is directed to a multiple-camera multiple-thread detection system, so as to solve the above technical problems of the prior art.
The purpose of the invention is realized by the following technical scheme.
The detection system comprises a rack, a PLC and an industrial personal computer, wherein a vibration disc which enables the direction of a workpiece to be detected to be uniform is arranged on the rack; a discharging channel of the vibrating disc is connected to the feeding mechanism; the device also comprises a transparent turntable driven to rotate by a stepping motor; a feeding area, a photographing area and a blanking area are sequentially arranged along the periphery of the transparent turntable; a plurality of stations are uniformly arranged on the transparent turntable, and each station is used for placing a product; the photographing area of the transparent turntable side is sequentially provided with two photographing positions: the first photographing component and the second photographing component; the blanking area is provided with three blanking boxes in sequence: an OK blanking box, an NG blanking box and a tailing box; vibration dish, crossing rule device, step motor, feed mechanism and subassembly of shooing respectively with PLC, industrial computer electric connection.
The station be provided with four, four products are once only gone up to feed mechanism.
The photographing component comprises a camera, a lens, a storage for storing photos and a transmission unit for transmitting photo information to the industrial personal computer.
The detection method of the detection system comprises the following steps:
(1) four products are fed at one time through a feeding mechanism and are placed on a glass disc, a stepping motor drives the glass disc and the products on the glass disc to rotate, two cameras are triggered once at the same time when rotating one step, internal threads start to operate, the products do not run under a lens when the operation starts and run idle, and the sizes of the products are judged when the products are positioned under the lens;
(2) in this process, the material is divided into corresponding equal parts inside the camera according to the number of the material loading (here, 4) designed in the normal state, and the equal parts are sorted.
(3) Each part in the ordered sequence is set into a parallel thread, so that each thread can operate simultaneously, and the operation time is reduced.
(4) After the product is tested, each thread generates a result according to OK and NG of the product, the results are combined according to the sequence of the threads, and finally the combined result is sent to the PLC, and the PLC performs blanking according to the combined result.
In the step (2), the camera internal sorting method comprises: from left to right, from right to left, from top to bottom, or from bottom to top, etc.
The preferred sequencing method is: in left to right order.
The software is most suitable for products with smaller size and larger yield, and aims to more reasonably utilize and allocate resources. The method is mainly realized through the following technical scheme.
1) The hardware part mainly comprises two cameras, lenses and other accessories.
2) And C #. net is a software development environment.
3) And the tested result is sent to the PLC in a serial port communication mode, and the PLC blows OK and NG products into the corresponding blanking boxes according to the sent result.
As can be seen from the above solution, the system has the following advantages:
1) the plasticity is strong: the test device can be modified into a product similar to the test device, and the hardware part basically does not need to be replaced, so that the cost is further saved.
2) The operation is simple: the system develops a parameter setting window, is convenient to debug and can be completed by production personnel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1, a frame; 2. a vibrating pan; 3. a feeding mechanism; 4. a transparent turntable; 5. a camera assembly; 6. a camera component II; 7. OK blanking box; 8. NG a blanking box; 9. a tail material box.
FIG. 2 is a block diagram of a decision process of the present invention;
FIG. 3 is a schematic diagram of multi-camera multithreading during test software operation
FIG. 4 is a schematic diagram of the multi-camera multi-thread test software when off-line
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the specific embodiment.
The system for detecting multiple threads by multiple cameras as shown in fig. 1 comprises a frame, a PLC (programmable logic controller) and an industrial personal computer, wherein a vibration disc which enables a workpiece to be detected to have a uniform direction is arranged on the frame; a discharging flow channel of the vibrating disc passes through the over-gauge device to the feeding mechanism; the device also comprises a transparent turntable driven to rotate by a stepping motor; a feeding area, a photographing area and a blanking area are sequentially arranged along the periphery of the transparent turntable; a plurality of stations are uniformly arranged on the transparent turntable, and each station is used for placing a product; the photographing area of the transparent turntable side is sequentially provided with two photographing positions: the first photographing component and the second photographing component; the blanking area is provided with three blanking boxes in sequence: an OK blanking box, an NG blanking box and a tailing box; vibration dish, crossing rule device, step motor, feed mechanism and subassembly of shooing respectively with PLC, industrial computer electric connection.
The station be provided with four, four products are once only gone up to feed mechanism.
The photographing component comprises a camera, a lens, a storage for storing photos and a transmission unit for transmitting photo information to the industrial personal computer.
The detection method of the detection system comprises the following steps:
(1) four products are fed at one time through a feeding mechanism and are placed on a glass disc, a stepping motor drives the glass disc and the products on the glass disc to rotate, two cameras are triggered once at the same time when rotating one step, internal threads start to operate, the products do not run under a lens when the operation starts and run idle, and the sizes of the products are judged when the products are positioned under the lens;
(2) in the process, the number of the materials to be loaded is four according to the design under the normal state, the materials are divided into corresponding equal parts in the camera, and the equal parts are sequenced from left to right.
(3) Each part in the ordered sequence is set into a parallel thread, so that each thread can operate simultaneously, and the operation time is reduced.
(4) After the product is tested, each thread generates a result according to OK and NG of the product, the results are combined according to the sequence of the threads, and finally the combined result is sent to the PLC, and the PLC performs blanking according to the combined result.
The whole judging process is shown in figure 2. Wherein, sending 0 in the judgment result of each thread represents that the product is an NG product, 1 represents that the product is an OK product, and 2 represents that the product is abnormal in material discharging (such as material returning and the like) in the material loading process. FIG. 3 is a schematic diagram of the multi-camera multi-thread test software in operation, in which the operation result of the first thread is displayed on the display window; the first process is OK, the second process is NG, the third process is NG, the fourth process is OK, the final output result is 1001, finally the corresponding first product and fourth product will fall into OK box, and the second product and third product will fall into NG box. According to actual requirements, different NG products are sometimes required to be classified, for example, the total length NG is one type, the width NG is one type and the like, can be classified; in addition, the proportion of the NG products of different types can be counted, so that the process in the subsequent production process can be improved conveniently. Fig. 4 is a schematic diagram of the multi-camera multi-thread test software when the test software is off-line, and when a test window of a certain thread is selected, the test software is displayed on a display window.
The principles and embodiments of the present invention are explained in detail by specific examples applied herein, which are merely used to help understand the method and the core idea of the present invention; can be increased or decreased according to specific requirements. Meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. The detecting system of a plurality of threads of a plurality of cameras, including frame, PLC and industrial computer, its characterized in that: a vibration disc which enables the direction of the workpiece to be measured to be uniform is arranged on the frame; a discharging channel of the vibrating disc is connected to the feeding mechanism; the device also comprises a transparent turntable driven to rotate by a stepping motor; a feeding area, a photographing area and a blanking area are sequentially arranged along the periphery of the transparent turntable; a plurality of stations are uniformly arranged on the transparent turntable, and each station is used for placing a product; the photographing area of the transparent turntable side is sequentially provided with two photographing positions: the first photographing component and the second photographing component; the blanking area is provided with three blanking boxes in sequence: an OK blanking box, an NG blanking box and a tailing box; vibration dish, crossing rule device, step motor, feed mechanism and subassembly of shooing respectively with PLC, industrial computer electric connection.
2. The multiple-camera multiple-thread detection system of claim 1, wherein: the station be provided with four, four products are once only gone up to feed mechanism.
3. The multiple-camera multiple-thread detection system of claim 1, wherein: the photographing component comprises a camera, a lens, a storage for storing photos and a transmission unit for transmitting photo information to the industrial personal computer.
4. A method for detecting a multi-camera multi-thread detection system according to any one of claims 1-3, comprising the steps of:
(1) four products are fed at one time through a feeding mechanism and are placed on a glass disc, a stepping motor drives the glass disc and the products on the glass disc to rotate, two cameras are triggered once at the same time when rotating one step, internal threads start to operate, the products do not run under a lens when the operation starts and run idle, and the sizes of the products are judged when the products are positioned under the lens;
(2) in the process, according to the number (4 here) of the materials loaded in the normal state, dividing the materials into corresponding equal parts in the camera and sequencing the equal parts;
(3) each part in the ordered sequence is set into a parallel thread, so that each thread can operate simultaneously, and the operation time is reduced;
(4) after the product is tested, each thread generates a result according to OK and NG of the product, the results are combined according to the sequence of the threads, and finally the combined result is sent to the PLC, and the PLC performs blanking according to the combined result.
5. The method of claim 4, wherein the method comprises: in the step (2), the camera internal sorting method comprises: from left to right, from right to left, from top to bottom, or from bottom to top, etc.
6. The method of claim 4, wherein the method comprises: in the step (2), the camera internal sorting method comprises: in left to right order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406839.4A CN111069072A (en) | 2019-12-31 | 2019-12-31 | Detection system for multiple cameras and multiple threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406839.4A CN111069072A (en) | 2019-12-31 | 2019-12-31 | Detection system for multiple cameras and multiple threads |
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| CN111069072A true CN111069072A (en) | 2020-04-28 |
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| CN201911406839.4A Pending CN111069072A (en) | 2019-12-31 | 2019-12-31 | Detection system for multiple cameras and multiple threads |
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Citations (7)
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| CN104142328A (en) * | 2014-07-21 | 2014-11-12 | 重庆颖泉标准件有限公司 | System for standard fastener detection |
| CN204656967U (en) * | 2015-02-13 | 2015-09-23 | 焯越朗智能设备有限公司 | A kind of button checkout gear |
| CN105032788A (en) * | 2015-07-16 | 2015-11-11 | 成都宝利根自动化技术有限公司 | Product appearance defect detection equipment |
| CN207479024U (en) * | 2017-08-29 | 2018-06-12 | 广东宇星众鼎精密科技有限公司 | Cellphone Accessories detection device |
| CN208076411U (en) * | 2017-10-30 | 2018-11-09 | 杭州智感科技有限公司 | A kind of comprehensive detection device of open defect |
| CN109675832A (en) * | 2019-01-21 | 2019-04-26 | 深圳精创视觉科技有限公司 | A kind of ndfeb magnet size and open defect detection device |
| CN209034894U (en) * | 2018-10-10 | 2019-06-28 | 布塔（苏州）精密科技有限公司 | It is a kind of to utilize glass plate detection device |
-
2019
- 2019-12-31 CN CN201911406839.4A patent/CN111069072A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142328A (en) * | 2014-07-21 | 2014-11-12 | 重庆颖泉标准件有限公司 | System for standard fastener detection |
| CN204656967U (en) * | 2015-02-13 | 2015-09-23 | 焯越朗智能设备有限公司 | A kind of button checkout gear |
| CN105032788A (en) * | 2015-07-16 | 2015-11-11 | 成都宝利根自动化技术有限公司 | Product appearance defect detection equipment |
| CN207479024U (en) * | 2017-08-29 | 2018-06-12 | 广东宇星众鼎精密科技有限公司 | Cellphone Accessories detection device |
| CN208076411U (en) * | 2017-10-30 | 2018-11-09 | 杭州智感科技有限公司 | A kind of comprehensive detection device of open defect |
| CN209034894U (en) * | 2018-10-10 | 2019-06-28 | 布塔（苏州）精密科技有限公司 | It is a kind of to utilize glass plate detection device |
| CN109675832A (en) * | 2019-01-21 | 2019-04-26 | 深圳精创视觉科技有限公司 | A kind of ndfeb magnet size and open defect detection device |
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Application publication date: 20200428 |