CN115236086A - Polyhedral workpiece visual detection equipment - Google Patents
Polyhedral workpiece visual detection equipment Download PDFInfo
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- CN115236086A CN115236086A CN202210894403.XA CN202210894403A CN115236086A CN 115236086 A CN115236086 A CN 115236086A CN 202210894403 A CN202210894403 A CN 202210894403A CN 115236086 A CN115236086 A CN 115236086A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
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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
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9515—Objects of complex shape, e.g. examined with use of a surface follower device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/0099—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor comprising robots or similar manipulators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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Abstract
The invention relates to a polyhedral workpiece visual inspection device which comprises a straight conveyor belt, an annular conveyor belt, an inspection platform, a mechanical arm, a sorting mechanism, a liquid crystal control display screen, a top camera, a side camera and a bottom camera, wherein the straight conveyor belt is arranged on the top of the conveyor belt; the tail end of the straight conveyor belt is connected with the head end of the annular conveyor belt, and the tail end of the annular conveyor belt is positioned right above the head section of the straight conveyor belt; the detection platform, the mechanical arm and the liquid crystal control display screen are positioned on one side of the straight conveyor belt, and the sorting mechanism is positioned on one side of the detection platform; the detection platform comprises a rotating platform which is transparent at the bottom and used for supporting the workpiece; the mechanical arm comprises a sucker for sucking the workpiece from the straight conveyor belt to the rotating platform; the top camera is located straight type conveyer belt top, and the side camera is located rotating platform one side, and the bottom camera is located the rotating platform below. The invention has the advantages of simple structure, high detection speed and high detection precision, and belongs to the technical field of workpiece visual detection equipment.
Description
Technical Field
The invention relates to workpiece visual detection equipment, in particular to polyhedral workpiece visual detection equipment.
Background
The machine vision analysis and detection is to use machine to replace naked eye to detect defects, and the machine vision system is to extract workpiece features, convert them into image signals, input them into an image processing system, and convert them into digital signals according to the information of pixel distribution, brightness and color. Image recognition system software or the like performs various operations by analyzing these digitized signals to extract the characteristics of the target, and further detects whether the workpiece has defects. The detection system adopts an industrial camera to convert the surface of a workpiece into image signals, the image signals are converted into digital signals according to information such as pixel distribution, brightness and color, and the image processing system performs various operations on the signals to extract characteristics of a target, such as area, dimension and the like. And the detection platform outputs a result after detecting according to the training model. However, when workpiece precision inspection equipment based on machine vision analysis is used, certain disadvantages exist, and when some workpieces with smooth surfaces are inspected, the smooth surfaces of the workpieces may reflect light to affect the shooting definition of a camera, so that the detection precision is affected.
CN113109345A discloses a multi-station simultaneous appearance automatic detection device for polyhedral products, which first performs top shooting, then performs bottom shooting, and finally performs side shooting, wherein the bottom detection and the side detection are realized at different stations. In order to realize the bottom surface detection, the workpiece needs to be clamped above the bottom surface camera by a mechanical arm to stay. In order to perform side inspection, the robot needs to be moved away without shielding the side of the workpiece. And after shooting is finished, transferring the workpiece from the side shooting station to a feed opening for feeding through another group of manipulators. Such a detection device has the following drawbacks: 1. bottom surface shooting and side surface shooting cannot be carried out synchronously, and workpiece detection consumes long time; 2. two groups of mechanical arms are needed, and the actions of the mechanical arms are complex; 3. the workpiece is moved in a clamping mode, once the clamp is designed, the clamp is not easy to adjust, the equipment has no good universality, and the application range is narrow.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: the polyhedral workpiece visual detection equipment is simple in structure and high in detection efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a visual detection device for polyhedral workpieces comprises a straight conveyor belt, an annular conveyor belt, a detection platform, a mechanical arm, a sorting mechanism, a liquid crystal control display screen, a top camera, a side camera and a bottom camera; the tail end of the straight conveyor belt is connected with the head end of the annular conveyor belt, and the tail end of the annular conveyor belt is positioned right above the head section of the straight conveyor belt; the detection platform, the mechanical arm and the liquid crystal control display screen are positioned on one side of the straight conveyor belt, and the sorting mechanism is positioned on one side of the detection platform; the detection platform comprises a rotating platform with a transparent bottom for supporting the workpiece; the mechanical arm comprises a sucker for sucking the workpiece from the straight conveyor belt to the rotating platform; the top camera is located straight type conveyer belt top, and the side camera is located rotating platform one side, and the bottom camera is located the rotating platform below.
Preferably, the endless conveyor is connected end to end with the straight conveyor, the unabsorbed work pieces falling down from the end of the straight conveyor fall onto the endless conveyor, and the work pieces fall back from the end of the endless conveyor to the straight conveyor to be detected again.
Preferably, a portal frame is arranged above the annular conveyor belt and the straight conveyor belt, a top camera is arranged on the portal frame, a lens of the top camera faces downwards, the top camera above the straight conveyor belt is used for collecting images of the top surface of the workpiece, and the top camera above the annular conveyor belt is used for counting the number of the workpieces.
Preferably, the detection platform comprises a motor, a turntable, a connecting rod, a grooved wheel and a transparent bottom plate; the grooved wheel comprises a central part, four slotted parts and four connecting parts, wherein the four slotted parts are circumferentially and uniformly distributed on the periphery of the central part, the four connecting parts are positioned among the four slotted parts, the slotted parts are provided with grooves which are outwards arranged along the radial direction, and the outer sides of the connecting parts are in an inwards concave arc shape; the turntable is in a disc shape, an arc notch is formed in one side of the turntable, and the radius of the turntable is equal to the arc radius of the outer side of the connecting part; the connecting rod is fixedly connected with the turntable, the connecting rod is arranged along the radial direction, the connecting rod is positioned in the middle of the arc-shaped notch, and a pin shaft is arranged on the outer side of the connecting rod; the rotary table and the grooved pulley are rotatably mounted on the transparent bottom plate, the motor drives the rotary table and the connecting rod to synchronously rotate, and the pin shaft drives the grooved pulley to intermittently rotate through being matched with the groove.
Preferably, an annular groove is formed below the central part, and a ball is arranged in the annular groove to realize that the grooved wheel rotates relative to the transparent bottom plate; the central part for placing the workpiece is transparent, the bottom camera is positioned below the transparent bottom plate, and the lens faces upwards to the central part and is used for acquiring the bottom surface image of the workpiece.
Preferably, the mechanical arm comprises a mechanical arm base, a large arm main rod, a small arm main rod and a tail end main body; the sucking disc is installed in terminal main part, and terminal main part, forearm mobile jib, big arm mobile jib, base rotary type meet in proper order, and the base is connected with the horizontal rotary type of arm base.
Preferably, the mechanical arm is further provided with a USB interface connected with the liquid crystal control display screen.
Preferably, the detection platform comprises a driving lever for pushing the workpiece down the sorting mechanism from the grooved wheel; the sorting mechanism comprises a sorting track, a sorting deflector rod and a steering engine; sorting track downward sloping setting, the anterior segment is the tubaeform section, the back end is the rectangle section, thereby the middle part of rectangle section is equipped with the baffle and falls into the rectangle section qualified products and collect track and defective products collection track, the front end of baffle lies in the middle part of rectangle section in the front rear direction, the rear end of letter sorting driving lever is connected with the front end rotary type of baffle, thereby steering wheel drive letter sorting driving lever rotates the letter sorting driving lever and collects track or defective products collection track closure with qualified products, and collect the leading-in port that the track is formed the horn shape in the orbital front square of defective products collection or qualified products collection.
Preferably, the upper end surface of the sorting track is provided with a smooth plastic film for reducing the friction damage of the workpiece.
Preferably, the rack is built through an aluminum profile, and the straight conveyor belt, the annular conveyor belt, the detection platform, the mechanical arm, the sorting mechanism and the liquid crystal control display screen are all fixed on the rack; the top camera, the side camera and the bottom camera are all fixed on the frame through aluminum profiles.
The invention has the following advantages:
1. the conveyor belt, the detection platform, the mechanical arm and the sorting mechanism are redesigned and distributed, and the polyhedral workpiece visual detection equipment with new distribution, more simplified structure and higher detection efficiency is formed.
2. The straight conveyor belt and the annular conveyor belt form a closed loop, workpieces which are not adsorbed by the mechanical arm are counted by a top camera above the annular conveyor belt and circulated to the next time, and the detection of the first surface of the workpieces can be completed.
3. The grooved wheel in the detection platform is provided with 4 grooves, so that the rotation of the turntable for one circle is equal to the rotation of the grooved wheel for 1/4 circle, the detection of 4 surfaces of the workpiece can be realized, and the detection efficiency is improved. Meanwhile, the grooved wheel stops intermittently, so that the side camera is ensured to acquire clear patterns, and the detection precision is ensured.
4. The grooved wheel is made of materials with high transparency, such as similar glass, the bottom surface of the workpiece is detected under the cooperation of the bottom camera, the side surface and the bottom surface are shot synchronously, and the detection efficiency is improved.
5. The sorting deflector rod on the sorting mechanism can be used for collecting the closed defective products on the track when the workpieces are qualified after detection is finished, and otherwise, the principle is the same. The classification of qualified products and defective products can be completed.
6. A liquid crystal control display screen is arranged beside the detection platform, so that the working condition of the detection platform can be monitored in real time.
Drawings
FIG. 1 is a flow chart of a visual inspection apparatus for polyhedral workpieces.
Fig. 2 is a perspective view of a visual inspection apparatus for polyhedral workpieces.
Fig. 3 is a schematic structural diagram of a robot arm of the polyhedral workpiece visual inspection device in the left view direction.
Fig. 4 is a structural schematic diagram of a mechanical arm of the visual inspection equipment for polyhedral workpieces in the right view direction.
Fig. 5 is a partial schematic view of a visual inspection apparatus for polyhedral workpieces.
Fig. 6 is a top view of fig. 5.
FIG. 7 is a top view of an assay platform.
Wherein, 1 is endless conveyor, 2 is straight type conveyer belt, 3 is the arm, 4 is testing platform, 5 is letter sorting mechanism, 6 is the liquid crystal display control screen.
301 is a robot base, 302 is a base, 303 is a large arm stem, 304 is a small arm stem, and 305 is a tip body.
401 is a stick, 402 is a transparent base plate, 403 is a bottom camera, 404 is a side camera, 405 is a sheave, 406 is a turntable, and 407 is a ball.
501 is a sorting track, 502 is a sorting deflector rod, 503 is a clapboard.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
A visual detection device for polyhedral workpieces comprises a straight conveyor belt, an annular conveyor belt, a detection platform, a mechanical arm, a sorting mechanism, a liquid crystal control display screen, a top camera, a side camera and a bottom camera; the tail end of the straight conveyor belt is connected with the head end of the annular conveyor belt, and the tail end of the annular conveyor belt is positioned right above the head section of the straight conveyor belt; the detection platform, the mechanical arm and the liquid crystal control display screen are positioned on one side of the straight conveyor belt, and the sorting mechanism is positioned on one side of the detection platform; the detection platform comprises a rotating platform which is transparent at the bottom and used for supporting the workpiece; the mechanical arm comprises a sucker for sucking the workpiece from the straight conveyor belt to the rotating platform; the top camera is located straight type conveyer belt top, and the side camera is located rotating platform one side, and the bottom camera is located the rotating platform below. The device can achieve the purpose of detecting multiple surfaces of the workpiece.
The top camera above the straight conveyor belt adopts a binocular industrial camera, the top camera above the annular conveyor belt adopts a monocular industrial camera, the side camera adopts an industrial camera, and the bottom camera adopts an industrial camera.
The annular conveyor belt is connected with the straight conveyor belt end to end, the unabsorbed workpieces falling down from the tail end of the straight conveyor belt fall onto the annular conveyor belt, and the workpieces fall back to the straight conveyor belt from the tail end of the annular conveyor belt to be detected again. The straight conveyor belt and the annular conveyor belt form a closed loop, wherein the straight conveyor belt adopts belt transmission and is driven by a motor, a workpiece firstly flows to the straight conveyor belt after being processed, is detected by a binocular industrial camera arranged above the straight conveyor belt, and then enters the next step after being detected; the workpieces which do not enter the next step flow to the annular conveyor belt from the straight conveyor belt, and fall back to the starting point of the straight conveyor belt after counting statistics of the monocular camera on the annular conveyor belt. The conveyor belt forms a closed loop so that an operator can detect the operation condition of the conveyor belt in real time and complete the detection of the first surface of the workpiece.
The portal frame is installed to the top of endless conveyor and straight type conveyer belt, installs the top camera on the portal frame, and top camera lens down, and the top camera of straight type conveyer belt top is used for gathering work piece top surface image, and the top camera of endless conveyor top is used for counting work piece quantity.
The detection platform comprises a motor, a turntable, a connecting rod, a grooved wheel and a transparent bottom plate; the grooved wheel comprises a central part, four slotted groove parts and four connecting parts, wherein the four slotted groove parts are circumferentially and uniformly distributed on the periphery of the central part, the four connecting parts are positioned among the four slotted groove parts, grooves which are outwards arranged along the radial direction are arranged on the slotted part, and the outer sides of the connecting parts are in an inwards concave arc shape; the rotary disc is disc-shaped, one side of the rotary disc is provided with an arc-shaped notch, and the radius of the rotary disc is equal to the arc-shaped radius of the outer side of the connecting part; the connecting rod is fixedly connected with the turntable, the connecting rod is arranged along the radial direction, the connecting rod is positioned in the middle of the arc-shaped notch, and a pin shaft is arranged on the outer side of the connecting rod; the rotary table and the grooved pulley are rotatably mounted on the transparent bottom plate, the motor drives the rotary table and the connecting rod to synchronously rotate, and the pin shaft drives the grooved pulley to intermittently rotate through being matched with the groove. The grooved wheel is provided with 4 grooves, so that one circle of rotation of the turntable is equal to 1/4 circle of rotation of the grooved wheel, namely, the turntable is driven by the motor to rotate for one circle to drive the grooved wheel to rotate for 1/4 circle to complete detection of one surface, and the detection of 4 surfaces of the workpiece is completed in the process. The pin shaft cuts into and cuts out the groove along the radial direction of the grooved wheel, when the pin shaft is contacted with the groove, the grooved wheel rotates, the arc-shaped notch provides a space for the grooved wheel to pass through, when the pin shaft leaves the groove, the turntable is tangent to the grooved wheel, so that the turntable rotates, and the grooved wheel stops.
An annular groove is formed below the central part, and balls are arranged in the annular groove to realize that the grooved wheel rotates relative to the transparent bottom plate; the central part for placing the workpiece is transparent, the bottom camera is positioned below the transparent bottom plate, and the lens faces upwards to the central part and is used for collecting the bottom surface image of the workpiece. In this embodiment, the width of the circular groove is 2 mm.
The mechanical arm comprises a mechanical arm base, a large arm main rod, a small arm main rod and a tail end main body; the sucking disc is installed in terminal main part, and terminal main part, forearm mobile jib, big arm mobile jib, base rotary type meet in proper order, and the base is connected with the horizontal rotary type of arm base. The mechanical arm is the existing equipment, and the lectotype is the triaxial mechanical arm, and can 360 degrees rotations of level. The left side and the right side of the mechanical arm are respectively provided with a motor, a three-axis motion mode is adopted, a parallelogram structure is adopted, and a tail end sucker of the parallelogram structure is always perpendicular to the ground plane. The sucker can achieve the purpose of adsorbing the workpiece by pumping out internal air to form pressure difference, namely, the mechanical arm transfers the workpiece to a grooved wheel on the detection platform.
The mechanical arm is also provided with a USB interface connected with the liquid crystal control display screen.
The detection platform comprises a shifting lever which pushes the workpiece down the sorting mechanism from the grooved wheel; the sorting mechanism comprises a sorting track, a sorting deflector rod and a steering engine; sorting track downward sloping setting, the anterior segment is the tubaeform section, the back end is the rectangle section, thereby the middle part of rectangle section is equipped with the baffle and falls into qualified products with the rectangle section and collect track and defective products collection track, the front end of baffle lies in the middle part of rectangle section in the front rear direction, the rear end of letter sorting driving lever is connected with the front end rotary type of baffle, thereby steering wheel drive letter sorting driving lever rotates the letter sorting driving lever and collects track or defective products collection track closure with qualified products, and collect the leading-in port that the track is formed the horn shape in orbital front square at defective products collection or qualified products collection. The shifting lever sends the work piece to letter sorting mechanism after accomplishing the detection, in order to prevent that the shifting lever from producing the damage to the work piece when sending the work piece to letter sorting mechanism, smooth transparent plastic film has been spread on the sheave surface. When the workpieces are detected to be qualified and then are sent to the sorting mechanism, the sorting deflector rod closes the defective product collecting track, and the workpieces flow to the qualified product collecting device by means of gravity; when the workpieces are detected to be defective and then are sent to the sorting mechanism, the sorting deflector rod closes the qualified product collecting track, and the workpieces flow to the defective product collecting device by virtue of gravity; the steering engine can drive the sorting deflector rods to close corresponding tracks according to real-time data of the liquid crystal control display screen. The sorting track output port is provided with a qualified product collecting device and a defective product collecting device.
The upper end face of the sorting track is provided with a smooth plastic film for reducing friction damage of the workpiece, so that the workpiece can smoothly slide downwards by means of gravity without damaging the surface of the workpiece when being conveyed to the sorting track by the shifting lever.
The liquid crystal control display screen is arranged on one side of the detection platform, can monitor the operation condition of each step in real time, controls each part by combining the driving devices of each part and the like, and displays the detection result in real time.
A rack is built through aluminum profiles, and a straight conveyor belt, an annular conveyor belt, a detection platform, a mechanical arm, a sorting mechanism and a liquid crystal control display screen are all fixed on the rack; the top camera, the side camera and the bottom camera are all fixed on the frame through aluminum profiles.
The operation process is as follows:
the first step is as follows: the operator can regulate the running speed of the straight conveyor belt and the annular conveyor belt on the working panel.
The second step is that: and conveying the processed workpiece to a straight conveyor belt, and detecting the workpiece by using a binocular industrial camera above the straight conveyor belt.
The third step: and controlling a binocular industrial camera to detect whether the surface of the workpiece has defects.
The fourth step: and the workpieces which are not adsorbed by the mechanical arm enter the annular conveying belt, are counted by the industrial camera and then return to the starting point of the straight conveying belt to wait for secondary detection.
The fifth step: the liquid crystal control display screen controls the mechanical arm to adsorb the workpiece onto the detection platform, and if the workpiece has defects, the motor is controlled to drive the deflector rod to convey the workpiece to the sorting track; and if the workpiece has no defects, the liquid crystal control display screen controls the detection platform to start working.
And a sixth step: the liquid crystal control display screen controls the motor to drive the turntable to drive the grooved wheel to rotate, and the industrial cameras on one side and the bottom are controlled in a combined mode to detect whether the surface of the workpiece has defects.
The seventh step: the liquid crystal control display screen controls the motor to drive the deflector rod to convey the workpieces to the sorting track.
The eighth step: and controlling a motor to drive a sorting driving lever according to the detection result. After the workpiece is detected to be qualified, the sorting deflector rod closes the defective product collecting track; and after the workpiece is detected to be defective, the sorting deflector rod closes the qualified product collecting track.
The ninth step: the workpieces slide to the corresponding collecting devices by means of gravity and wait for the taking out of the workpieces by an operator.
And repeating the second step to detect the workpiece next time.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such modifications are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a polyhedron work piece visual inspection equipment which characterized in that: the automatic sorting machine comprises a straight conveyor belt, an annular conveyor belt, a detection platform, a mechanical arm, a sorting mechanism, a liquid crystal control display screen, a top camera, a side camera and a bottom camera; the tail end of the straight conveyor belt is connected with the head end of the annular conveyor belt, and the tail end of the annular conveyor belt is positioned right above the head section of the straight conveyor belt; the detection platform, the mechanical arm and the liquid crystal control display screen are positioned on one side of the straight conveyor belt, and the sorting mechanism is positioned on one side of the detection platform; the detection platform comprises a rotating platform which is transparent at the bottom and used for supporting the workpiece; the mechanical arm comprises a sucker for sucking the workpiece from the straight conveyor belt to the rotating platform; the top camera is located straight type conveyer belt top, and the side camera is located rotating platform one side, and the bottom camera is located the rotating platform below.
2. A visual inspection apparatus for polyhedral workpieces according to claim 1, wherein: the annular conveyor belt is connected with the straight conveyor belt end to end, the unabsorbed workpieces falling down from the tail end of the straight conveyor belt fall onto the annular conveyor belt, and the workpieces fall back to the straight conveyor belt from the tail end of the annular conveyor belt to be detected again.
3. A visual inspection apparatus for polyhedral workpieces as set forth in claim 2, wherein: the portal frames are arranged above the annular conveyor belt and the straight conveyor belt, the top camera is arranged on the portal frames, the lens of the top camera faces downwards, the top camera above the straight conveyor belt is used for collecting images of the top surface of the workpiece, and the top camera above the annular conveyor belt is used for counting the number of the workpieces.
4. A visual inspection apparatus for polyhedral workpieces according to claim 1, wherein: the detection platform comprises a motor, a turntable, a connecting rod, a grooved wheel and a transparent bottom plate;
the grooved wheel comprises a central part, four slotted groove parts and four connecting parts, wherein the four slotted groove parts are circumferentially and uniformly distributed on the periphery of the central part, the four connecting parts are positioned among the four slotted groove parts, grooves which are outwards arranged along the radial direction are arranged on the slotted part, and the outer sides of the connecting parts are in an inwards concave arc shape;
the rotary disc is disc-shaped, one side of the rotary disc is provided with an arc-shaped notch, and the radius of the rotary disc is equal to the arc-shaped radius of the outer side of the connecting part; the connecting rod is fixedly connected with the turntable, the connecting rod is arranged along the radial direction, the connecting rod is positioned in the middle of the arc-shaped notch, and a pin shaft is arranged on the outer side of the connecting rod;
the rotary table and the grooved pulley are rotatably mounted on the transparent bottom plate, the motor drives the rotary table and the connecting rod to synchronously rotate, and the pin shaft drives the grooved pulley to intermittently rotate through being matched with the groove.
5. A visual inspection apparatus for polyhedral workpieces as set forth in claim 4, wherein: an annular groove is formed below the central part, and balls are arranged in the annular groove to realize that the grooved wheel rotates relative to the transparent bottom plate; the central part for placing the workpiece is transparent, the bottom camera is positioned below the transparent bottom plate, and the lens faces upwards to the central part and is used for acquiring the bottom surface image of the workpiece.
6. A visual inspection apparatus for polyhedral workpieces according to claim 1, wherein: the mechanical arm comprises a mechanical arm base, a large arm main rod, a small arm main rod and a tail end main body; the sucking disc is installed in terminal main part, and terminal main part, forearm mobile jib, big arm mobile jib, base rotary type meet in proper order, and the base is connected with the horizontal rotary type of arm base.
7. A visual inspection apparatus for polyhedral workpieces as set forth in claim 6, wherein: the mechanical arm is also provided with a USB interface connected with the liquid crystal control display screen.
8. A visual inspection apparatus for polyhedral workpieces as set forth in claim 4, wherein: the detection platform comprises a deflector rod which pushes the workpiece down the sorting mechanism from the grooved wheel; the sorting mechanism comprises a sorting track, a sorting deflector rod and a steering engine; sorting track downward sloping setting, the anterior segment is the tubaeform section, the back end is the rectangle section, thereby the middle part of rectangle section is equipped with the baffle and falls into qualified products with the rectangle section and collect track and defective products collection track, the front end of baffle lies in the middle part of rectangle section in the front rear direction, the rear end of letter sorting driving lever is connected with the front end rotary type of baffle, thereby steering wheel drive letter sorting driving lever rotates the letter sorting driving lever and collects track or defective products collection track closure with qualified products, and collect the leading-in port that the track is formed the horn shape in orbital front square at defective products collection or qualified products collection.
9. A visual inspection apparatus for polyhedral workpieces as set forth in claim 8, wherein: the upper end face of the sorting track is provided with a smooth plastic film for reducing friction damage of the workpiece.
10. A visual inspection apparatus for polyhedral workpieces as set forth in claim 1, wherein: a rack is built through aluminum profiles, and a straight conveyor belt, an annular conveyor belt, a detection platform, a mechanical arm, a sorting mechanism and a liquid crystal control display screen are all fixed on the rack; the top camera, the side camera and the bottom camera are all fixed on the frame through aluminum profiles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210894403.XA CN115236086A (en) | 2022-07-26 | 2022-07-26 | Polyhedral workpiece visual detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210894403.XA CN115236086A (en) | 2022-07-26 | 2022-07-26 | Polyhedral workpiece visual detection equipment |
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| CN115236086A true CN115236086A (en) | 2022-10-25 |
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| CN202210894403.XA Pending CN115236086A (en) | 2022-07-26 | 2022-07-26 | Polyhedral workpiece visual detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117380567A (en) * | 2023-10-12 | 2024-01-12 | 无锡捷视智能科技有限公司 | Machine vision detection auxiliary device with smooth surface article |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117380567A (en) * | 2023-10-12 | 2024-01-12 | 无锡捷视智能科技有限公司 | Machine vision detection auxiliary device with smooth surface article |
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