CN217451050U

CN217451050U - Machine vision measuring device for accurate size of appearance of porcelain tube

Info

Publication number: CN217451050U
Application number: CN202221433980.0U
Authority: CN
Inventors: 袁方
Original assignee: Wuhan Sensairui Technology Co ltd
Current assignee: Wuhan Sensairui Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-20
Anticipated expiration: 2032-06-10

Abstract

The utility model discloses a porcelain tube outward appearance accurate dimension machine vision measuring device relates to the industrial measurement technical field, specifically is a porcelain tube outward appearance accurate dimension machine vision measuring device, including circuit control system, mechanical operation system and image processing system, circuit control system includes switch, the valve regulator and the PLC controller of blowing, the PLC controller respectively with mechanical operation system and image processing system link to each other and form the communication. The machine vision measuring device for the precise size of the appearance of the porcelain tube saves the labor cost, shortens the detection flow and greatly reduces the detection cost; compared with the traditional manual measurement, the method is more accurate and stable, and the efficiency is obviously improved; compared with the detection device on the market, the detection device is more flexible, the shooting device can be detached, and the camera or the light source can be replaced, so that the detection device is suitable for more products with the same category and different requirements.

Description

Machine vision measuring device for accurate size of appearance of porcelain tube

Technical Field

The utility model relates to an industrial measurement technical field specifically is a porcelain tube outward appearance accurate dimension machine vision measuring device.

Background

With the wide emergence of the industrial automation and intelligence requirements of various industries in China on the adoption of image and machine vision technologies, machine vision gradually starts to be applied to industrial fields.

Machine vision is the simulation of human visual functions by a computer to allow a machine to obtain relevant visual information and understand. The method can be divided into two principles of 'sight' and 'sight', wherein the 'sight' is that external information is displayed into digital signals through imaging and is fed back to a computer, and a whole set of hardware solution is required to be relied on, and comprises a light source, a camera, an image acquisition card, a visual sensor and the like; the "feeling" is that the computer processes and analyzes the digital signal, mainly a software algorithm. Machine vision has a wide application field in industry, and the core functions comprise: measurement, detection, identification, location, etc.

With the development of mechanical automation, the existing parts to be detected, such as filter parts, porcelain tubes and the like, have higher requirements on the dimensional precision grade of the parts. The traditional manual measurement has the conditions of large measurement error, low measurement efficiency and the like, and can not meet the production supply requirements of parts.

Along with the development of artificial intelligence, the detection industry also begins to use machine vision to save labor consumption, shorten the detection flow, and realize the production of products from manufacturing to detection automation and integration. Accurate measurement of dimensions also goes into automation. Machine vision can be at different detection conditions such as temperature, under the illumination, the reaction that shows differently on the image promptly, utilizes these very different accurate measurement part's of point size to distinguish the part of putting out the rule not, satisfy the production demand, therefore we provide a porcelain tube outward appearance accurate dimension machine vision measuring device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a porcelain tube outward appearance accurate dimension machine vision measuring device has solved the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a machine vision measuring device for the appearance accurate dimension of a porcelain tube comprises a circuit control system, a mechanical operation system and an image processing system;

the circuit control system comprises a power switch, an air blowing valve regulator and a PLC (programmable logic controller), and the PLC is respectively connected with the mechanical operation system and the image processing system to form communication;

the mechanical operation system comprises a glass rotary table, and a feeding device, a material arranging device, a sensing device, at least one shooting device, a discharging device and a debris residue detection device which are sequentially arranged along the circumferential direction of the glass rotary table, wherein one ends of the feeding device and the discharging device are respectively connected with the glass rotary table;

the image processing system is used for processing the images collected by the shooting device and returning the processed signals to the blanking device.

Preferably, loading attachment is by buffering slide, feed supplement storehouse, vibration dish frame, vibration dish and directly shake the feeder and constitute, install the vibration dish in the vibration dish frame, directly shake the feeder and link to each other with the reason material device, the reason material device links to each other with the glass carousel.

Preferably, the material arranging device is composed of a specially-made smooth aluminum alloy slideway and two stainless steel baffles arranged at the tail end of the slideway.

Preferably, the sensing device is a sensor, the sensor is connected with the PLC to form communication, when a detected part passes through the shooting device, the sensor transmits the acquired position information of the detected part to the PLC, and the PLC controls the shooting device to acquire images.

Preferably, the photographing device comprises a camera, a light source and a fixing device, the camera comprises a camera and a lens, and when the camera photographs, the central point of the lens of the camera, the central point of the light source and the central point of the detection part form a posture of three points and one line.

Preferably, the shooting device is an upward shooting device, and comprises an upward shooting device A, an upward shooting device B and an upward shooting device C, the upward shooting device A, the upward shooting device B and the upward shooting device C are three, a camera lens of the upward shooting device is fixed right above the detection part through a fixing device, and the light source is located right below the detection part.

Preferably, the number of the upward shooting devices is three, white surface light is used for the light sources of the upward shooting devices respectively, the white surface light is used for detecting the diameter and the length of the porcelain tube respectively, and the precision requirement is that the deviation is smaller than.mm;

the fixing device comprises a support, a support moving control, a camera moving control and a light source moving control, wherein the camera moving control and the light source moving control are respectively used for adjusting the heights of the camera and the light source; the support moving control is used for controlling the movement of the support and adjusting the corresponding shooting positions of the camera and the light source.

Preferably, unloader comprises discharge gate, the valve of blowing, clear material panel beating and the three pipe gas needles of a row, the valve of blowing is located the inboard of detecting the part, the top of glass carousel, the valve of blowing sets up to three according to the difference of detecting the part, is NG valve of blowing, OK valve of blowing, clear material valve of blowing respectively, the discharge gate includes OK discharge gate and NG discharge gate and clear material discharge gate, each valve of blowing is relative with a discharge gate.

The utility model provides a porcelain tube outward appearance accurate dimension machine vision measuring device possesses following beneficial effect:

the machine vision measuring device for the precise size of the appearance of the porcelain tube saves the labor cost, shortens the detection flow and greatly reduces the detection cost; compared with the traditional manual measurement, the method is more accurate and stable, and the efficiency is obviously improved; compared with the detection device on the market, the detection device is more flexible, the shooting device can be detached, and the camera or the light source can be replaced, so that the detection device is suitable for more products with the same category and different requirements.

Drawings

Fig. 1 is a schematic structural diagram of a mechanical operation system of the present invention.

Fig. 2 is a top view of the mechanical operation system of the present invention.

Fig. 3 is a schematic diagram of the structure details of the shooting device of the present invention.

Fig. 4 is a detailed schematic view of the structure of the material arranging device of the present invention.

Fig. 5 is a detailed schematic view of the structure of the feeding device of the present invention.

Fig. 6 is a schematic view of the structure details of the blanking device of the present invention.

In the figure: 1. a material arranging device; 2. an induction device; 3. a glass rotary table; 4. a fixing mechanism; 5. a photographing device; 6. a blanking device; 7. a debris and residue detection device; 8. an upper shooting device A; 9. an upward shooting device B; 10. an upward shooting device C; 11. a NG discharge port; 12. an NG blowing valve; 13. an OK air blowing valve; 14. an OK discharge port; 15. a material cleaning and blowing valve; 16. a material cleaning and discharging port; 17. clearing the metal plate; 18. a fixing device; 19. a light source; 20. a lens; 21. a camera; 22. a buffer slide way; 23. a material supplementing bin; 24. a vibrating pan; 25. a direct vibration feeder; 26. a vibrating pan frame; 27. a discharge port; 28. a blowing valve; 29. three-tube air needle is arranged in a line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, the utility model provides a machine vision measuring device for precise dimension of porcelain tube appearance, which is characterized in that the device comprises a circuit control system, a mechanical operation system, an image processing system and a fixing mechanism 4;

the mechanical operation system comprises a glass rotary table 3, and a feeding device, a material sorting device 1, an induction device 2, at least one shooting device 5, a discharging device 6 and a debris and residue detection device 7 which are sequentially arranged along the circumferential direction of the glass rotary table 3, wherein one end of the feeding device and one end of the discharging device 6 are respectively connected with the glass rotary table 3;

the image processing system is used for processing the image collected by the shooting device 5 and returning the processed signal to the blanking device 6.

The feeding device comprises a buffering slide way 22, a material supplementing bin 23, a vibrating disc rack 26, a vibrating disc 24 and a direct-vibration feeder 25, the vibrating disc rack 2 is provided with the vibrating disc 24, the direct-vibration feeder 25 is connected with the material arranging device 1, the material arranging device 1 is connected with the glass rotary disc 3, a detection part is conveyed to the direct-vibration feeder 25 through the vibrating disc 24, the direct-vibration feeder 25 slides the detection part to a working groove of the glass rotary disc 3 through the material arranging device 1, the PLC controls the glass rotary disc 3 to rotate at a constant speed, the material moves stably along with the glass rotary disc 3, and no relative displacement exists between the material and the glass rotary disc 3.

Wherein, reason material device 1 for the supplementary material that detects level and smooth entering glass carousel 3 work inslot that gets into. The material arranging device 1 is composed of a specially-made smooth aluminum alloy slideway and two stainless steel baffles arranged at the tail end of the slideway, and a detection part slides to the middle of the two baffles and finally enters a working groove of the glass rotary table 3 at an ideal angle.

Wherein, induction system 2 is a sensor, and the sensor links to each other with the PLC controller and forms the communication, when detecting the part through shooing device 5, the sensor transmits the positional information who detects the part of gathering to the PLC controller, and the PLC controller control is shot device 5 and is carried out image acquisition.

Wherein, camera 5 includes camera 21, light source 19 and fixing device 18, camera 21 includes camera 21 and camera lens 20, and when camera 21 was shot, the central point of camera lens 20, the central point of light source 19 and the central point of detecting the part become the posture of three-point and a line, and the PLC controller links to each other with camera 5 and forms the communication for control camera 21 shoots, control light source 19 illumination and the image transmission that will shoot 5 collection are for image processing system, and return the signal after image processing system handles to unloader 6.

The shooting devices 5 are all shooting devices, and each shooting device comprises a shooting device A8, a shooting device B9 and a shooting device C10, camera lenses 20 of the three shooting devices are fixed right above the detection part through fixing devices 18, and the light source 19 is located right below the detection part.

Wherein, the number of the upper shooting devices is three, the light sources 19 of the upper shooting devices respectively use white surface light which is respectively used for detecting the diameter and the length of the porcelain tube, and the precision requirement is that the deviation is less than 0.02 mm;

the fixing device 18 comprises a bracket, a bracket moving control, a camera 21 moving control and a light source 19 moving control, wherein the camera 21 moving control and the light source 19 moving control are respectively used for adjusting the heights of the camera 21 and the light source 19; the support moving control is used for controlling the movement of the support and adjusting the corresponding shooting positions of the camera 21 and the light source 19.

Wherein, the blanking device 6 consists of a discharge port 27, an air blowing valve 28, a material cleaning metal plate 17 and a linear three-tube air needle 29, the air blowing valve 28 is positioned at the inner side of a detection part, the number of the air blowing valves 28 is three according to the difference of the detection part, the three air blowing valves 28 are respectively an NG air blowing valve 12, an OK air blowing valve 13 and a material cleaning air blowing valve 15, the discharge port 27 comprises an OK discharge port 14, an NG discharge port 11 and a material cleaning discharge port 16,

the NG air blowing valve 12 shows that the detected parts do not meet the requirements, the OK air blowing valve 13 shows that the detected parts meet the requirements, and the material cleaning air blowing valve 15 shows that the left materials or the crushed residues and other damaged materials are screened; each air blowing valve 28 is opposite to one discharge port 27 and blows the detection part to the corresponding discharge device; the PLC controller is connected with the air blowing valve to form communication, when the detection part passes through the air blowing valve, the PLC controller returns a processed signal to the air blowing valve, and the detection part is blown to the corresponding discharge port 27.

Wherein, mechanical operation system still includes anti-sticking material detection device, has the detection optic fibre of correlation at the tail end of discharge gate, and correlation optic fibre is responsible for detecting whether there is waste materials such as piece residue that has not been blown away in 3 work grooves of glass carousel, in time provides alarm information, prevents that piece residue from taking place the card material along with 3 motions of glass carousel and damaging glass carousel 3 at some stations.

The image processing system comprises a computer loaded with a visual algorithm, the computer receives and displays images collected by the shooting device 5, processes the images and outputs return signals, the PLC receives the return signals output by the computer and further processes and outputs the return signals, and the air blowing valve receives the return signals output by the PLC and blows the detected parts into the corresponding blanking device 6.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the invention, and any modifications, equivalent alterations, improvements and the like made within the spirit and principle of the invention are intended to be included within the scope of the invention.

Claims

1. A machine vision measuring device for the appearance accurate dimension of a porcelain tube is characterized by comprising a circuit control system, a mechanical operation system and an image processing system; the circuit control system comprises a power switch, an air blowing valve regulator and a PLC (programmable logic controller), and the PLC is respectively connected with the mechanical operation system and the image processing system to form communication; the mechanical operation system comprises a glass rotary table (3), and a feeding device, a material arranging device (1), an induction device (2), at least one shooting device (5), a discharging device (6) and a debris and residue detection device (7) are sequentially arranged along the circumferential direction of the glass rotary table (3), and one ends of the feeding device and the discharging device (6) are respectively connected with the glass rotary table (3); the image processing system is used for processing the images collected by the shooting device (5) and returning the processed signals to the blanking device (6).

2. The machine vision measuring device for the precise dimension of the appearance of the porcelain tube according to claim 1, wherein the feeding device is composed of a buffering slide way (22), a feeding bin (23), a vibrating disk rack (26), a vibrating disk (24) and a direct vibration feeder (25), the vibrating disk rack (26) is provided with the vibrating disk (24), the direct vibration feeder (25) is connected with the material arranging device (1), and the material arranging device (1) is connected with the glass rotating disk (3).

3. The machine vision measuring device for the precise dimension of the appearance of the porcelain tube according to the claim 2 is characterized in that the material arranging device (1) is composed of a specially-made smooth aluminum alloy slideway and two stainless steel baffles arranged at the tail end of the slideway.

4. The machine vision measuring device for the precise dimension of the appearance of the porcelain tube according to claim 3, wherein the sensing device (2) is a sensor, the sensor is connected with a PLC (programmable logic controller) to form communication, when a detected part passes through the shooting device (5), the sensor transmits the acquired position information of the detected part to the PLC, and the PLC controls the shooting device (5) to acquire an image.

5. A porcelain tube appearance accurate dimension machine vision measuring device according to claim 4, characterized in that the camera (5) comprises a camera (21), a light source (19) and a fixing device (18), the camera (21) comprises a camera (21) and a lens (20), and when the camera (21) shoots, the central point of the camera lens (20), the central point of the light source (19) and the central point of the detection part are in a three-point-in-one-line posture.

6. The machine vision measuring device for the precise dimension of the appearance of the porcelain tube according to claim 5, wherein the shooting devices (5) are shooting devices, each shooting device comprises a shooting device A (8), a shooting device B (9) and a shooting device C (10), camera lenses (20) of the three shooting devices are fixed right above a detection part through fixing devices (18), and the light source (19) is located right below the detection part.

7. The machine vision measuring device for precise dimension of porcelain tube appearance according to claim 6, wherein the number of the upward-shooting devices is three, and white surface lights are respectively used for the light sources (19) of the upward-shooting devices, and are respectively used for detecting the diameter and the length of the porcelain tube, and the precision requirement is that the deviation is less than 0.02 mm; the fixing device (18) comprises a support, a support movement control, a camera (21) movement control and a light source (19) movement control, wherein the camera (21) movement control and the light source (19) movement control are respectively used for adjusting the heights of the camera (21) and the light source (19); the support moving control is used for controlling the movement of the support and adjusting the corresponding shooting positions of the camera (21) and the light source (19).

8. The machine vision measuring device for the precise size of the appearance of the porcelain tube according to claim 7, wherein the blanking device (6) consists of a discharge port (27), a blowing valve (28), a material cleaning metal plate (17) and three air needles (29) arranged in a straight line, the blowing valve (28) is positioned on the inner side of a detection part and above the glass rotary plate (3), the blowing valve (28) is set to be three according to the different detection parts and respectively comprises a NG blowing valve (12), an OK blowing valve (13) and a material cleaning blowing valve (15), the discharge port (27) comprises an OK discharge port (14), a NG discharge port (11) and a material cleaning discharge port (16), and each blowing valve (28) is opposite to one discharge port (27).