CN112295938A - Visual equipment for detecting size based on double telecentric lens and use method thereof - Google Patents
Visual equipment for detecting size based on double telecentric lens and use method thereof Download PDFInfo
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- CN112295938A CN112295938A CN202010951125.8A CN202010951125A CN112295938A CN 112295938 A CN112295938 A CN 112295938A CN 202010951125 A CN202010951125 A CN 202010951125A CN 112295938 A CN112295938 A CN 112295938A
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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
- B07C5/04—Sorting according to size
- B07C5/10—Sorting according to size measured by light-responsive 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
- B07C5/02—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
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
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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
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The application discloses a visual device for detecting size based on a double telecentric lens, which comprises a conveyer belt, a device bracket, an automatic material distribution device, a material conveying wheel assembly, a camera detection device, a visual display device, an energy supply component and a control unit; the automatic material distributing device has the functions of gathering, orienting and conveying the materials to be detected to the material conveying wheel assembly at regular time; the material conveying wheel assembly plays a role in conveying a material to be detected to a detection area of the camera detection device and keeping the material to be detected static during detection; the camera detection device is positioned right above the material conveying wheel assembly and plays a role in detecting the size of the material through shooting; the technical problems of low measurement precision and low measurement efficiency which are easily caused when the camera detection device is used in cooperation with the conveyor belt and the automatic material distribution device to measure the size of the material in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to visual equipment for detecting size based on a double telecentric lens.
Background
Machinery used in industry, especially precision instruments all have strict dimensional requirements to the use of accessory, and manual work utilizes the instrument to detect, appears the error easily, causes the unqualified of accessory manufacturing, along with the vigorous development of science and technology, detects the more intelligent, automatic of size vision equipment.
In order to realize the one-by-one detection of single materials in the carrying process of products, the size detection visual equipment in the prior art generally comprises a conveying belt, an automatic material distribution device, a camera detection device and a visual display unit, and the camera detection device is matched with the conveying belt and the automatic material distribution device for use to measure the sizes of the materials.
When the camera detection device is used in cooperation with the conveyor belt and the automatic material distribution device, the camera detection device directly measures that materials on the conveyor belt can affect the measurement result due to continuous conveying of the conveyor belt and uncontrollable shaking of the conveyor belt (pictures shot by the camera detection device are easy to blur, and then the measurement result is affected); however, the above method can significantly slow down the detection speed, which affects the detection efficiency.
Disclosure of Invention
The embodiment of the application provides a based on two telecentric mirror heads detect size vision equipment, solves the technical problems of low measurement accuracy and slow measurement efficiency easily occurring when camera detection device is used with conveyer belt and automatic feed divider in cooperation for carrying out size measurement of materials in the prior art, realizes the technical effect of carrying out size measurement of materials with high efficiency and high precision by using the camera detection device in cooperation with the conveyer belt and the automatic feed divider.
The embodiment of the application provides a visual device for detecting the size based on a double telecentric lens, which is characterized by comprising a conveying belt, a device bracket, an automatic material distributing device, a material conveying wheel assembly, a camera detection device, a visual display device, an energy supply component and a control unit;
the conveyer belt plays a role in conveying materials;
the equipment support plays a role in positioning the material conveying wheel assembly and the camera detection device;
the automatic material distributing device has the functions of gathering, orienting and conveying the materials to be detected to the material conveying wheel assembly at regular time;
the material conveying wheel assembly plays a role in conveying a material to be detected to a detection area of the camera detection device and keeping the material to be detected static during detection;
the material conveying wheel assembly comprises a material conveying wheel frame, a material carrying plate positioning assembly, a feeding assembly, a material dumping assembly and a material conveying wheel driving assembly;
the material conveying wheel frame is a frame of the material conveying wheel assembly and plays a role in bearing the material carrying plate and the material carrying plate positioning component;
the material carrying plate plays a role in carrying and transporting materials to be detected;
the material carrying plate is positioned on the material conveying wheel frame through the material carrying plate positioning assembly;
a torsion spring is positioned between the material carrying plate and the material carrying plate positioning component and plays a role in maintaining the material carrying plate to be horizontal relative to the conveying belt;
the feeding assembly plays a role in exerting acting force on the material carrying plate closest to the conveying belt to enable the material carrying plate to incline around the material carrying plate positioning assembly so as to facilitate the material to be detected to enter the material carrying plate;
the material dumping assembly plays a role in conveying the detected material to the conveying belt;
the material conveying wheel driving assembly is positioned on the equipment support and plays a role in driving the material conveying wheel frame to rotate intermittently;
the camera detection device is positioned right above the material conveying wheel assembly and plays a role in detecting the size of the material through shooting;
the visual display device is used for displaying the detection result.
The camera detection device further comprises a double high-beam lens and a material carrying plate leveling assembly;
the double high beam lenses play a role in correcting lens parallax and ensuring that the image magnification ratio is not changed within a certain object distance range;
the material carrying plate leveling assembly plays a role in leveling the material carrying plate which is loaded with the material to be tested and is positioned under the double high-beam lens;
the structure of the material carrying plate leveling assembly is two rollers which are equal in height and symmetrically arranged and fixedly connected to the camera detection device;
and the connecting line of the lowest points of the two rollers is tangent to the motion trail of the material carrying plate.
The main body of the material conveying wheel frame is circular and comprises a rotating shaft, a support ring and support ring spokes;
the rotating shaft is rotatably and fixedly connected to the material conveying wheel bracket;
the support rings are two rings and play a role in supporting and positioning the plurality of material carrying plates and the material carrying plate positioning assemblies;
the support ring spokes are used for positioning the support ring;
the material carrying plate positioning component is a shaft penetrating through the material carrying plate;
the axial direction of the material loading plate positioning assembly is the same as the axial direction of the material conveying wheel frame;
the material carrying plates are distributed on the material conveying wheel frame in a plurality of numbers.
The material loading plate comprises a material loading plate feeding hole and a material limiting assembly;
the feeding hole of the material carrying plate plays a role in facilitating the material to be detected to enter the material carrying plate;
the material limiting assembly is a skirt edge of the material carrying plate and plays a role in preventing the material to be detected from falling.
The feeding component is a rod which is rotatably and fixedly connected to the material conveying wheel bracket;
the axial direction of the rotating shaft of the feeding component is the same as the axial direction of the material conveying wheel assembly, and a torsion spring is positioned between the rod body of the feeding component and the material conveying wheel bracket;
the feeding assembly can rotate by three to five degrees;
the material dumping component is structurally a rod fixedly connected to the material conveying wheel bracket;
when the conveying wheel frame rotates, one of the material loading plates is inclined due to the rotation of the conveying wheel frame after touching the material dumping assembly, so that the material is dumped back to the conveying belt.
Preferably, the material conveying wheel assembly further comprises a material discharging component;
the structural inclined plate of the discharge assembly plays a role in relieving the impact of materials on the conveying belt;
the equipment support comprises a support main body, a material conveying wheel support, a camera detection device support and a material discharging assembly support;
the bracket main body comprises a bracket base and a bracket rod;
the bracket base plays a role in supporting the bracket rod, is cylindrical or conical in shape, and has a plane or roller wheel in the bottom surface structure;
the support rod is a straight rod;
the material conveying wheel support and the camera detection device support are positioned on the support rod in a sliding mode;
the axial direction of the material conveying wheel bracket is vertical to the axial direction of the bracket rod;
the delivery wheel bracket is cylindrical;
the discharging component support is positioned on the support main body in a sliding mode and plays a role in positioning the discharging component.
The preferable material conveying wheel assembly also comprises a parallel light source generator;
the material carrying plate is made of a transparent material;
the parallel light source generator is positioned on the material conveying wheel bracket and provides a parallel light source for shooting of the double telecentric lens.
Preferably, the conveying wheel assembly further comprises a defective product processing component;
the unqualified product processing assembly is structurally a long rod which is positioned on the discharging assembly and controlled to rotate, and the unqualified product is removed into a waste bin or subjected to secondary detection through controlled rotation when passing through the discharging assembly.
Preferably, the conveying wheel assembly further comprises a material carrying plate cleaning component;
the material carrying plate cleaning assembly plays a role in cleaning the material carrying plate;
the material carrying plate cleaning assembly is positioned on the material conveying wheel support, the structure of the material carrying plate cleaning assembly is a fan, and the material carrying plate is blown clean by blowing when passing through an air outlet of the fan.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the automatic material distributing device, the material conveying wheel assembly and the camera detection device are arranged on the conveying belt, materials to be detected are distributed and stopped by the automatic material distributing device and enter the material conveying wheel assembly in order, the materials to be detected are conveyed to the position right below a lens of the camera detection device by the material conveying wheel assembly in an intermittent mode, and the materials are detected when the materials are static; the technical problems that in the prior art, when the camera detection device is used in cooperation with the conveyor belt and the automatic material distribution device to measure the size of the material, the measurement precision is low and the measurement efficiency is low are solved, and therefore the technical effects that the camera detection device is used in cooperation with the conveyor belt and the automatic material distribution device to measure the size of the material with high efficiency and high precision are achieved.
Drawings
FIG. 1 is an isometric view of a double telecentric lens based sizing vision apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a double telecentric lens-based dimension detection vision apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a carrier plate according to an embodiment of the present invention;
FIG. 4 is a schematic view of a material delivery wheel assembly according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a moving track of a loading plate according to an embodiment of the present invention;
in the figure:
a conveyor belt 10;
an equipment stand 20;
the device comprises a support main body 21, a material conveying wheel support 22, a camera detection device support 23 and a discharging assembly support 24;
an automatic feed divider 30;
a feed delivery wheel assembly 40;
a material conveying wheel frame 41, a material loading plate 42, a material loading plate feeding hole 421, a material limiting component 422, a material loading plate positioning component 43, a material feeding component 44, a material dumping component 45, a material conveying wheel driving component 46, a material discharging component 47, a defective processing component 48 and a material loading plate cleaning component 49;
a camera detection device 50;
a double high beam lens 51, a material carrying plate leveling assembly 52 and a parallel light source generator 53;
a visual display device 60.
Detailed Description
In order to facilitate an understanding of the embodiments of the present invention, the embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an axonometric view of a vision apparatus for detecting size based on a double telecentric lens according to an embodiment of the present invention is shown; the vision equipment for detecting the size based on the double telecentric lens comprises a conveyer belt 10, an equipment bracket 20, an automatic material distribution device 30, a material conveying wheel assembly 40, a camera detection device 50, a vision display device 60, an energy supply component and a control unit; according to the invention, the automatic material distributing device 30, the material conveying wheel assembly 40 and the camera detection device 50 are arranged on the conveying belt 10, the automatic material distributing device 30 is used for distributing and blocking materials to be detected, so that the materials to be detected sequentially enter the material conveying wheel assembly 40, the material conveying wheel assembly 40 intermittently conveys the materials to be detected to the position right below a lens of the camera detection device 50, and the materials are detected when the materials are static.
As shown in fig. 1 and 2, the conveyor belt 10 functions to convey materials, which is prior art.
The equipment bracket 20 plays a role in positioning the material conveying wheel assembly 40 and the camera detection device 50; preferably, the equipment support 20 comprises a support main body 21, a material conveying wheel support 22 and a camera detection device support 23; the support main body 21 comprises a support base and a support rod, the support base plays a role in supporting the support rod and can be cylindrical or conical, and the bottom surface structure of the support base can be a plane or a roller; the support rod can be a straight rod, and the material conveying wheel support 22 and the camera detection device support 23 are positioned on the support rod in a sliding mode; the axial direction of the material conveying wheel bracket 22 is vertical to the axial direction of the bracket rod, and the material conveying wheel bracket 22 is in a column shape.
The automatic material distributing device 30 has the functions of gathering, orienting and conveying the materials to be detected to the material conveying wheel assembly 40 at regular time; the automatic material distributing device 30 is positioned above the conveyer belt 10, and since the automatic material distributing devices for different materials to be measured are slightly different and are the prior art, the detailed description is omitted here.
As shown in fig. 1-4, the material conveying wheel assembly 40 is used for conveying a material to be detected to the detection area of the camera detection device 50 and keeping the material to be detected still during detection; the material delivery wheel assembly 40 comprises a material delivery wheel frame 41, a material loading plate 42, a material loading plate positioning component 43, a feeding component 44, a material dumping component 45 and a material delivery wheel driving component 46.
The material conveying wheel frame 41 is a frame of the material conveying wheel assembly 40 and plays a role of bearing the material loading plate 42 and the material loading plate positioning assembly 43; the main body of the material conveying wheel frame 41 is circular and comprises a rotating shaft, a support ring and support ring spokes; the rotating shaft is rotatably and fixedly connected to the material conveying wheel support 22, the support rings are two rings and play a role in supporting and positioning a plurality of material carrying plates 42 and material carrying plate positioning assemblies 43, and spokes of the support rings are used for positioning the support rings.
The material carrying plate 42 plays a role in carrying the material to be tested; the material loading plate 42 is positioned on the material conveying wheel frame 41 through the material loading plate positioning component 43, the material loading plate positioning component 43 is a shaft penetrating through the material loading plate 42, and a torsion spring is positioned between the shaft and the material loading plate 42; the axial direction of the material carrying plate positioning assembly 43 is the same as that of the material conveying wheel frame 41; the material carrying plates 42 are distributed on the material conveying wheel frame 41 uniformly; the torsion spring plays a role in maintaining the loading plate 42 to be horizontal relative to the conveying belt 10; in order to prevent the material to be detected from falling off due to the change of the spatial position of the material carrying plate 42 when the material to be detected is conveyed, preferably, the structure of the material carrying plate 42 is as shown in fig. 3, and the material carrying plate 42 includes a material carrying plate feeding port 421 and a material limiting component 422; the feeding hole 421 of the material carrying plate has the function of facilitating the material to be measured to enter the material carrying plate 42, and the material limiting component 422 is the skirt edge of the material carrying plate 42 and has the function of preventing the material to be measured from falling; the number of the material loading plates of the material loading plate 42 is preferably 8-15.
The feeding assembly 44 is shown in fig. 4 and is structured as a rod rotatably and fixedly connected to the feed wheel support 22; the feeding assembly 44 plays a role in exerting an acting force on the material carrying plate 42 closest to the conveying belt 10 to enable the material carrying plate to incline around the material carrying plate positioning assembly 43 so as to facilitate the material to be detected to enter the material carrying plate 42; the axial direction of the rotating shaft of the feeding component 44 is the same as the axial direction of the material conveying wheel assembly 40, and a torsion spring is positioned between the rod body of the feeding component 44 and the material conveying wheel bracket 22; preferably, the feeding assembly 44 can rotate through an angle of three to five degrees.
The material dumping component 45 plays a role in conveying detected materials to the conveying belt; the structure of the material dumping assembly 45 is shown in fig. 4, which can be a rod fixedly connected to the material delivery wheel support 22; when the feed wheel frame 41 is rotated, one of the carrier plates 42 is inclined by the rotation of the feed wheel frame 41 after touching the material pouring unit 45, thereby pouring the material back to the conveyor belt 10.
Considering that the material is easy to impact the conveyor belt 10 in the dumping process and affect the service life of the conveyor belt 10, the material conveying wheel assembly 40 of the present invention further includes a discharging component 47, and the structure of the discharging component 47 is shown in fig. 1 or 2 and is an inclined plate to play a role in relieving the impact of the material on the conveyor belt 10; the equipment support 20 further comprises a discharging component support 24, and the discharging component support 24 is slidably positioned on the support main body 21 and plays a role in positioning the discharging component 47.
The feed delivery wheel driving assembly 46 is positioned on the equipment support 20 and plays a role in driving the feed delivery wheel frame 41 to rotate intermittently; the feed wheel drive assembly 46 can be a combination motor and transmission assembly.
The camera detection device 50 is positioned right above the material conveying wheel assembly 400 and plays a role in detecting the size of the material through shooting; the camera detection device 50 comprises a double high-beam lens 51 and a material carrying plate leveling assembly 52; the double high beam lenses 51 play a role in correcting lens parallax and ensuring that the image magnification is not changed within a certain object distance range; the material carrying plate leveling assembly 52 has the function of leveling the material carrying plate 42 carrying the material to be measured under the double high beam lenses 51 (the material carrying plate 42 is easy to deflect when carrying the material); the material loading plate leveling assembly 52 is shown in fig. 2 or fig. 4, and is structurally composed of two equal-height and symmetrically-arranged rollers fixedly connected to the camera detection device 50, wherein a connecting line of lowest points of the two rollers is tangent to a motion track of the material loading plate 42 (the motion track of the material loading plate 42 when the material conveying wheel frame 41 rotates is shown in fig. 5, and a dotted line in the figure is the motion track).
The visual display device 60 is used for displaying the detection result, and is positioned on the equipment support 20 to receive the information from the camera detection device 50.
The energy supply assembly is used for operating functions of equipment, and the control unit is used for coordinating and controlling the operation of each component.
In consideration of that the telecentric lens only receives parallel light, almost all diffuse reflection light sources are filtered, imaging is dark under a natural environment, and in order to increase detection precision and improve equipment performance; the invention adds a parallel light source generator 53 and replaces the material of the material carrying plate 42 with transparent material; the parallel light source generator 53 is positioned on the delivery wheel bracket 22 and provides a parallel light source for shooting by the double telecentric lens 51; preferably, the material of the material carrying plate 42 is scratch-resistant glass, and further the material of the material carrying plate 42 is sapphire glass.
In consideration of the problem of processing unqualified materials detected by the equipment, the invention is additionally provided with a unqualified product processing assembly 48 on the basis of the above specific embodiment; as shown in fig. 2, the reject handling assembly 48 is configured as a controlled rotating, long rod positioned on the discharge assembly 47; controlled rotation rejects into a scrap bin or secondary inspection as they pass through the discharge assembly 47.
Preferably, the reject handling assembly 48 is an inkjet marking unit that is positioned on the equipment rack 20 and inkjet marks the rejects after the inkjet marking unit detects the rejects.
Considering that the material loading plate 42, especially the material loading plate 42 made of transparent material, is easy to deposit dust and dirt during the material transportation process so as to influence the detection result; the invention is additionally provided with a material loading plate cleaning component 49 on the basis of the specific embodiment; the material carrying plate cleaning assembly 49 plays a role in cleaning the material carrying plate, as shown in fig. 1 or 2, the material carrying plate cleaning assembly 49 is positioned on the material conveying wheel bracket 22, the structure of the material carrying plate cleaning assembly 49 is a fan, the material carrying plate 42 is dried and blown clean when the material carrying plate 42 passes through an air outlet of the fan, and the accuracy of a detection result is guaranteed;
in consideration of the detection efficiency, the vision equipment for detecting the size based on the double telecentric lens can use a plurality of material conveying wheel assemblies 40 and a camera detection device 50.
The invention discloses a visual device for detecting size based on a double telecentric lens, which comprises the following specific operation steps and action cycle:
laying detection dimension visual equipment (adjusting a gap between the material conveying wheel assembly 40 and the conveyor belt 10 and a gap between the material conveying wheel assembly 40 and the camera detection device 50 through an equipment support) according to the height of the conveyor belt 10 and the size of the material to be detected; an automatic material distributing device 30 is arranged on the conveying belt 10; the conveyer belt 10 is operated to convey the material to be measured to the automatic material distributing device 30; the automatic material distributing device 30 gathers, orients and regularly conveys the materials to be detected to the material conveying wheel assembly 40; the material conveying wheel assembly 40 intermittently rotates to convey the materials to be detected to the position right below the double high beam lens 51 one by one and stops rotating; the camera detection device 50 performs shooting detection; after the detection is finished, the material conveying wheel assembly 40 continues to rotate, and the detection result is transmitted to the visual display device 60 to be displayed; the detected materials are conveyed to the conveyer belt 10 through the material dumping component 45 and the discharging component 47; the conveyor belt 10 carries away the material behind the side.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the technical problems of low measurement precision and low measurement efficiency which are easily caused when the camera detection device is used in cooperation with the conveyor belt and the automatic material distribution device to measure the size of the material in the prior art are solved, and the technical effects of using the camera detection device in cooperation with the conveyor belt and the automatic material distribution device to measure the size of the material with high efficiency and high precision are achieved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A visual device for detecting size based on a double telecentric lens is characterized by comprising a conveyer belt, a device bracket, an automatic material distribution device, a material conveying wheel assembly, a camera detection device, a visual display device, an energy supply component and a control unit;
the conveyer belt plays a role in conveying materials;
the equipment support plays a role in positioning the material conveying wheel assembly and the camera detection device;
the automatic material distributing device has the functions of gathering, orienting and conveying the materials to be detected to the material conveying wheel assembly at regular time;
the material conveying wheel assembly plays a role in conveying a material to be detected to a detection area of the camera detection device and keeping the material to be detected static during detection;
the material conveying wheel assembly comprises a material conveying wheel frame, a material carrying plate positioning assembly, a feeding assembly, a material dumping assembly and a material conveying wheel driving assembly;
the material conveying wheel frame is a frame of the material conveying wheel assembly and plays a role in bearing the material carrying plate and the material carrying plate positioning component;
the material carrying plate plays a role in carrying and transporting materials to be detected;
the material carrying plate is positioned on the material conveying wheel frame through the material carrying plate positioning assembly;
a torsion spring is positioned between the material carrying plate and the material carrying plate positioning component and plays a role in maintaining the material carrying plate to be horizontal relative to the conveying belt;
the feeding assembly plays a role in exerting acting force on the material carrying plate closest to the conveying belt to enable the material carrying plate to incline around the material carrying plate positioning assembly so as to facilitate the material to be detected to enter the material carrying plate;
the material dumping assembly plays a role in conveying the detected material to the conveying belt;
the material conveying wheel driving assembly is positioned on the equipment support and plays a role in driving the material conveying wheel frame to rotate intermittently;
the camera detection device is positioned right above the material conveying wheel assembly and plays a role in detecting the size of the material through shooting;
the visual display device is used for displaying the detection result.
2. The double telecentric lens based sizing vision apparatus according to claim 1, wherein the camera inspection device comprises a double high beam lens and a charge carrier leveling assembly;
the double high beam lenses play a role in correcting lens parallax and ensuring that the image magnification ratio is not changed within a certain object distance range;
the material carrying plate leveling assembly plays a role in leveling the material carrying plate which is loaded with the material to be tested and is positioned under the double high-beam lens;
the structure of the material carrying plate leveling assembly is two rollers which are equal in height and symmetrically arranged and fixedly connected to the camera detection device;
and the connecting line of the lowest points of the two rollers is tangent to the motion trail of the material carrying plate.
3. The apparatus according to claim 2, wherein the feed wheel frame body is circular and comprises a rotation axis, a support ring and support ring spokes;
the rotating shaft is rotatably and fixedly connected to the material conveying wheel bracket;
the support rings are two rings and play a role in supporting and positioning the plurality of material carrying plates and the material carrying plate positioning assemblies;
the support ring spokes are used for positioning the support ring;
the material carrying plate positioning component is a shaft penetrating through the material carrying plate;
the axial direction of the material loading plate positioning assembly is the same as the axial direction of the material conveying wheel frame;
the material carrying plates are distributed on the material conveying wheel frame in a plurality of numbers.
4. The double telecentric lens based sizing vision apparatus of claim 1, wherein said double telecentric lens based sizing vision apparatus
The material loading plate comprises a material loading plate feeding hole and a material limiting assembly;
the feeding hole of the material carrying plate plays a role in facilitating the material to be detected to enter the material carrying plate;
the material limiting assembly is a skirt edge of the material carrying plate and plays a role in preventing the material to be detected from falling.
5. The vision apparatus for inspecting dimensions based on double telecentric optics according to claim 1, wherein the feeding assembly is a rod rotatably and fixedly connected to the feed wheel support;
the axial direction of the rotating shaft of the feeding component is the same as the axial direction of the material conveying wheel assembly, and a torsion spring is positioned between the rod body of the feeding component and the material conveying wheel bracket;
the feeding assembly can rotate by three to five degrees;
the material dumping component is structurally a rod fixedly connected to the material conveying wheel bracket;
when the conveying wheel frame rotates, one of the material loading plates is inclined due to the rotation of the conveying wheel frame after touching the material dumping assembly, so that the material is dumped back to the conveying belt.
6. The vision apparatus for inspecting dimensions based on double telecentric optics according to any one of claims 1 to 5, wherein said feed wheel assembly further comprises a discharge assembly;
the structural inclined plate of the discharge assembly plays a role in relieving the impact of materials on the conveying belt;
the equipment support comprises a support main body, a material conveying wheel support, a camera detection device support and a material discharging assembly support;
the bracket main body comprises a bracket base and a bracket rod;
the bracket base plays a role in supporting the bracket rod, is cylindrical or conical in shape, and has a plane or roller wheel in the bottom surface structure;
the support rod is a straight rod;
the material conveying wheel support and the camera detection device support are positioned on the support rod in a sliding mode;
the axial direction of the material conveying wheel bracket is vertical to the axial direction of the bracket rod;
the delivery wheel bracket is cylindrical;
the discharging component support is positioned on the support main body in a sliding mode and plays a role in positioning the discharging component.
7. The vision equipment for inspecting dimensions based on double telecentric lenses of claim 6, wherein the feed wheel assembly further comprises a parallel light source generator;
the material carrying plate is made of a transparent material;
the parallel light source generator is positioned on the material conveying wheel bracket and provides a parallel light source for shooting of the double telecentric lens.
8. The double telecentric lens-based inspection dimensional vision apparatus of claim 6, wherein the transport wheel assembly further comprises a reject handling component;
the unqualified product processing assembly is structurally a long rod which is positioned on the discharging assembly and controlled to rotate, and the unqualified product is removed into a waste bin or subjected to secondary detection through controlled rotation when passing through the discharging assembly.
9. The double telecentric lens based dimension vision apparatus of claim 7, wherein the delivery wheel assembly further comprises a material carrying plate cleaning component;
the material carrying plate cleaning assembly plays a role in cleaning the material carrying plate;
the material carrying plate cleaning assembly is positioned on the material conveying wheel support, the structure of the material carrying plate cleaning assembly is a fan, and the material carrying plate is blown clean by blowing when passing through an air outlet of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010951125.8A CN112295938A (en) | 2020-09-11 | 2020-09-11 | Visual equipment for detecting size based on double telecentric lens and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010951125.8A CN112295938A (en) | 2020-09-11 | 2020-09-11 | Visual equipment for detecting size based on double telecentric lens and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624774A (en) * | 2021-07-29 | 2021-11-09 | 桂林电子科技大学 | Welding point crack detection device for machine vision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624774A (en) * | 2021-07-29 | 2021-11-09 | 桂林电子科技大学 | Welding point crack detection device for machine vision |
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