CN109682757A - A kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector - Google Patents
A kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector Download PDFInfo
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- CN109682757A CN109682757A CN201910137019.3A CN201910137019A CN109682757A CN 109682757 A CN109682757 A CN 109682757A CN 201910137019 A CN201910137019 A CN 201910137019A CN 109682757 A CN109682757 A CN 109682757A
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- visual sensor
- supporting table
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- sliding rail
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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
- G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector, including a circle sliding rail, supporting table, motor, connecting rod, hub and the visual sensor circumferential around line for polyethylene gas pipes；Visual sensor includes camera lens and searchlight and external protective cover positioned at camera lens two sides；The detection device is for detecting polyethylene pipe hot melt welding point, polyethylene pipe hot melt welding point is shot by visual sensor, and the information of shooting is extracted into PLC control system, it is compared later with the standard picture in system, if detection image and standard picture to ratio error within the allowable range, PLC control system does not issue instruction, if error is more than allowed band, PLC control system is labeled the image for being more than error permission, determines unqualified joint location.
Description
Technical field
The present invention relates to technical field of vision detection, the vision of specifically a kind of line for polyethylene gas pipes sweat soldering connector
Detection device.
Background technique
In the past 30 years, polyethylene pipe because its good feature of environmental protection, impact resistance, anticorrosive property, it is easy to process the features such as, answer
It is very rapid with developing, largely apply in gas engineering, has gradually generation in terms of natural gas branch line, water supply line
For the trend of steel pipe.With the continuous growth of pipeline usage quantity, the accident of line for polyethylene gas pipes failure also constantly occurs.According to
Statistics, the main failure cause of polyethylene pipe is the failure of pipeline junction.The connection type of polyethylene pipe mainly has
Two kinds: sweat soldering, electric fusion welding.And electric fusion welding is mainly used for small-bore pipeline, combustion gas is usually big with polyethylene pipe
Bore pipe, therefore, for the safety for guaranteeing line for polyethylene gas pipes, it is ensured that the safety at the hot melting connector of polyethylene pipe is very
It is necessary to.
Guarantee that the method for polyethylene pipe quality of weld joint mainly controls polyethylene pipe welding process at present
System, but under conditions of high-volume, multifactor, it inevitably will appear careless mistake in welding process, this must just be detected.It is directed to
The sweat soldering connector of polyethylene pipe, the check system of mainstream is come pair according to the thickness and shape of pipe hot melting connector at present
The quality of welding carries out desk checking, but time-consuming for desk checking, requires the working experience of reviewer high.
With the maturation of vision detection technology and the decline of visual sensor cost, vision-based detection has been obtained in industry
Certain utilization, but it is constrained to the use occasion of polyethylene pipe and the characteristic of polythene material, vision-based detection sensor
It cannot be used directly for the detection on polyethylene pipe surface.Therefore it needs to provide a kind of for the inspection of polyethylene pipe hot melt connector vision
The device of survey, and then carry out the detection of polyethylene pipe hot melt connector, if vision-based detection can be on polyethylene pipe hot melt connector
It is applied, very big convenience can be provided for the detection of polyethylene pipe.
Summary of the invention
In view of the above problems, the purpose of the present invention realizes above-mentioned " convenience ".
Purpose to realize the present invention, the present invention provides a kind of inspections of the vision of line for polyethylene gas pipes sweat soldering connector
Device is surveyed, it includes: a circle sliding rail, supporting table, motor, connecting rod, hub and the view circumferential around line for polyethylene gas pipes
Feel sensor；The cross section of the sliding rail is in I-shaped, and there is the first groove in side, and the first groove with supporting table for connecting；Branch
Support platform is formed by connecting by transverse slat and riser, and transverse slat is in rectangle, and the second groove along the long side direction is provided on transverse slat, is passed for vision
The sliding of sensor has the hole being aligned with the second groove on sliding rail on riser, motor is installed on the outside of riser, and motor passes through perpendicular
Hole on plate is contacted with the first groove of sliding rail, and motor drives entire supporting table along pipeline circumferential movement, the control of motor and
Electric power connection line passes through the hub being mounted on supporting table transverse slat and external connection；Connecting rod is mounted on the of supporting table transverse slat
Among two grooves, handle is arranged in the top of connecting rod, for adjusting axial position of the visual sensor relative to pipeline, connecting rod
Bottom connect visual sensor；Visual sensor includes being located in the middle camera lens and positioned at the searchlight of camera lens two sides and outer
The protective cover in portion, camera lens are responsible for identifying that image, searchlight are responsible for illumination, and the image transmitting and control line of visual sensor pass through peace
Hub and external connection on supporting table transverse slat；Motor and visual sensor are through hub and external PLC control system
It is connected.
Further, the sliding rail is made of aluminium alloy gold, is divided into symmetrical two parts, in order to be nested in polyethylene pipe
On road, different caliber pipes use the sliding rail of different size.
Further, the supporting table is made of high-density plastic, carries out mobile driving by motor between sliding rail,
Supporting table can be pushed to move along sliding rail manually.
Further, the distance between the visual sensor and pipeline are adjusted according to the lens focus of visual sensor
School.
A method of polyethylene pipe hot melt connector vision-based detection being carried out using above-mentioned apparatus, this method includes following step
It is rapid:
The first step clears up line for polyethylene gas pipes surface and sweat soldering connector to be tested；
Left and right two parts sliding rail is nested on polyethylene pipe by second step, length of the sled position from sweat soldering connector
Degree on the slide rail by supporting table installation installs motor no more than the length of supporting table later；
Connecting rod is mounted in the second groove among supporting table transverse slat, and visual sensor is mounted on by third step
The bottom of connecting rod；
4th step adjusts the position of visual sensor according to pipe hot melting welding point position, guarantees that visual sensor exists
Right above pipe hot melting welding point to be detected；
5th step is connected the control device and power supply line of motor and visual sensor by hub accordingly；
6th step starts vision inspection apparatus by PLC control system, and visual sensor can be as supporting table be along sliding rail
Polyethylene pipe hot melt welding point is shot, and extracts the information of shooting into PLC control system, later and in system
Standard picture compare, if detection image and standard picture to ratio error within the allowable range, PLC control system is not sent out
It instructs out, if error is more than allowed band, PLC control system is labeled the detection image for being more than error permission, determines
Unqualified joint location.
The beneficial effects of the present invention are:
1. the present invention provides a kind of vision inspection apparatus of polyethylene pipe hot melt welding point, with the side of vision-based detection
Formula detects the quality of polyethylene pipe hot melt connector, provides convenience for the inspection of polyethylene pipe.
2. the present invention detects the quality of polyethylene pipe connector in the way of vision-based detection, and manually visualizing detection is to work as
Preceding polyethylene pipe hot melt joint quality detects most common method, and the feasibility of detection method is strong.
3. overall structure of the present invention is simple, cost is relatively low, is easy to implement and promotes.
4. sliding rail and supporting table of the invention can be adjusted for different pipelines, flexibility is stronger.
5. visual sensor of the invention equipped with searchlight and protective cover, can satisfy the work more severe in construction site
Make environment, and can round-the-clock work.
Detailed description of the invention
Fig. 1 is integral mechanical structure schematic diagram of the invention；
Fig. 2 is visual sensor schematic diagram of the invention；
In figure: 1 sliding rail；2 supporting tables；3 motors；4 connecting rods；5 hubs；6 visual sensors；7 searchlights；8 camera lenses；9
Protective cover.
Specific embodiment
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector provided by the invention, it
Including a circle sliding rail 1 circumferential around line for polyethylene gas pipes, the cross section of sliding rail 1 is in the shape of an " I ", and there is the first groove in side,
For connecting with supporting table 2, and for supporting table 2, along pipeline, circumferentially sliding provides track to first groove；Supporting table 2 is by transverse slat and erects
Plate is formed by connecting, and transverse slat is in rectangle, and the second groove along the long side direction is provided on transverse slat, for the sliding of visual sensor 6, erects
There is the hole being aligned with the second groove on sliding rail 1 on plate, motor 3 is installed on the outside of riser, motor 3 passes through the hole on riser
It is contacted with the first groove of sliding rail 1, motor 3 drives entire supporting table 2 to connect along pipeline circumferential movement, the control of motor 3 and power supply
Wiring passes through the hub 5 being mounted on 2 transverse slat of supporting table and external connection；Connecting rod 4 is mounted on the second of 2 transverse slat of supporting table
Among groove, handle is arranged in the top of connecting rod 2, is conveniently adjusted axial position of the visual sensor 6 relative to pipeline, connecting rod
4 bottom connects visual sensor 6；Visual sensor 6 includes being located in the middle camera lens 8 and the searchlight 7 positioned at 8 two sides of camera lens
And external protective cover 9, camera lens 8 are responsible for identification image, searchlight 7 is responsible for illumination, the image transmitting of visual sensor 6 and control
Line processed passes through the hub 5 being mounted on 2 transverse slat of supporting table and external connection；Motor 3 and visual sensor 6 through hub 5 with
External PLC control system is connected.
Further, the sliding rail 1 is made of aluminium alloy gold, is divided into symmetrical two parts, in order to be nested in polyethylene pipe
On road, different caliber pipes use the sliding rail 1 of different size.
Further, the supporting table 2 is made of high-density plastic, carries out mobile driving by motor 3 between sliding rail 1,
Supporting table 2 can also be pushed to move along sliding rail 1 manually.
Further, the visual sensor 6 is made of camera lens 8, searchlight 7 and protective cover 9, and protective cover 9 can use
Transparent protective cover, searchlight 7 are used to illuminate the sweat soldering connector of bottom pipe, between visual sensor 6 and pipeline away from
From should according to the lens focus of visual sensor 6 carry out adjustment.
The application method of the detection device is as follows:
The first step clears up line for polyethylene gas pipes surface and sweat soldering connector to be tested, guarantees that surface does not have
The pollution of large area, while guaranteeing that the circumferential direction of pipeline has the space of 500mm or more in order to be operated；
Left and right two parts sliding rail 1 is nested on polyethylene pipe by second step, and 1 position of sliding rail is from sweat soldering connector
Supporting table 2 is mounted on sliding rail 1 by length no more than the length of supporting table 2, installs motor 3 later；
Connecting rod 4 is mounted in the second groove among 2 transverse slat of supporting table, and visual sensor 6 is installed by third step
In the bottom of connecting rod 4；
4th step adjusts the position of visual sensor 6 according to pipe hot melting welding point position, guarantees visual sensor 6
Right above pipe hot melting welding point to be detected；
5th step is connected the control device and power supply line of motor 3 and visual sensor 6 by hub 5 accordingly
It connects；
6th step starts vision inspection apparatus by PLC control system, and visual sensor 6 can be as supporting table 2 be along cunning
Rail 1 shoots polyethylene pipe hot melt welding point, and extracts the information of shooting into PLC control system, later be
Standard picture in system compares, if detection image and standard picture to ratio error within the allowable range, PLC control system
Instruction is not issued, if error is more than allowed band, PLC control system can mark the detection image for being more than error permission
Note, determines unqualified joint location.
The working principle of the invention:
According to the correlative study that polyethylene pipe hot melt welds, the shape that different welding defects will lead to hot melting connector occurs
Variation specifically crosses and welds (weld interval is too long or welding temperature is excessively high) wide, the cold welding (weldering that will lead to sweat soldering connector
Connect that the time is too short or welding temperature is too low) it will lead to that sweat soldering connector is too short, and being mingled with and (having foreign matter when welding) will lead to hot melt
Welding point is in irregular shape, and visual sensor shoots polyethylene pipe hot melt welding point later, and extracts shooting
Information into PLC control system, compared later with the standard picture in system, if detection image and standard picture pair
Within the allowable range, PLC control system does not issue instruction to ratio error, if error is more than allowed band, PLC control system can be right
The detection image allowed more than error is labeled, and determines unqualified joint location.
Above-described embodiment is used to illustrate the present invention, rather than limits the invention, in spirit of the invention and
In scope of protection of the claims, to any modifications and changes that the present invention makes, protection scope of the present invention is both fallen within.
Claims (5)
1. a kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector characterized by comprising poly- around combustion gas
Ethylene conduit circumferential a circle sliding rail, supporting table, motor, connecting rod, hub and visual sensor；The cross section of the sliding rail
In I-shaped, there is the first groove in side, and the first groove with supporting table for connecting；Supporting table is formed by connecting by transverse slat and riser,
Transverse slat is in rectangle, and the second groove along the long side direction is provided on transverse slat, for the sliding of visual sensor, is had and cunning on riser
Motor is installed in the hole of the second groove alignment on rail, riser outside, and the first of hole and sliding rail of the motor on riser is recessed
Slot contact, motor drive entire supporting table along pipeline circumferential movement, the control of motor and electric power connection line by being mounted on support
Hub and external connection on platform transverse slat；Connecting rod is mounted among the second groove of supporting table transverse slat, the top of connecting rod
Handle is set, and for adjusting axial position of the visual sensor relative to pipeline, the bottom of connecting rod connects visual sensor；Depending on
Feel that sensor includes being located in the middle camera lens and positioned at the searchlight of camera lens two sides and the protective cover of outside, camera lens is responsible for identification
Image, searchlight are responsible for illumination, and the image transmitting and control line of visual sensor pass through the line concentration that is mounted on supporting table transverse slat
Device and external connection；Motor and visual sensor are connected through hub with external PLC control system.
2. the vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector according to claim 1, which is characterized in that
The sliding rail is made of aluminium alloy gold, is divided into symmetrical two parts, in order to be nested on polyethylene pipe, different caliber pipes
Use the sliding rail of different size.
3. the vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector according to claim 1, which is characterized in that
The supporting table is made of high-density plastic, carries out mobile driving by motor between sliding rail, can also push support manually
Platform is moved along sliding rail.
4. the vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector according to claim 1, which is characterized in that
The distance between the visual sensor and pipeline carry out adjustment according to the lens focus of visual sensor.
5. a kind of method for carrying out polyethylene pipe hot melt connector vision-based detection using any one of claim 1-4 described device,
It is characterized in that, method includes the following steps:
The first step clears up line for polyethylene gas pipes surface and sweat soldering connector to be tested；
Left and right two parts sliding rail is nested on polyethylene pipe by second step, and length of the sled position from sweat soldering connector is not
The length that can exceed that supporting table on the slide rail by supporting table installation installs motor later；
Connecting rod is mounted in the second groove among supporting table transverse slat, and visual sensor is mounted on connection by third step
The bottom of bar；
4th step adjusts the position of visual sensor according to pipe hot melting welding point position, guarantees visual sensor to be checked
Right above test tube road sweat soldering connector；
5th step is connected the control device and power supply line of motor and visual sensor by hub accordingly；
6th step starts vision inspection apparatus by PLC control system, visual sensor can with supporting table along sliding rail to poly-
Ethylene conduit sweat soldering connector is shot, and extracts the information of shooting into PLC control system, later with the mark in system
Quasi- image compares, if detection image and standard picture to ratio error within the allowable range, PLC control system, which does not issue, to be referred to
It enables, if error is more than allowed band, PLC control system is labeled the detection image for being more than error permission, and determination does not conform to
Lattice joint location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137019.3A CN109682757A (en) | 2019-02-25 | 2019-02-25 | A kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137019.3A CN109682757A (en) | 2019-02-25 | 2019-02-25 | A kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109682757A true CN109682757A (en) | 2019-04-26 |
Family
ID=66196960
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910137019.3A Pending CN109682757A (en) | 2019-02-25 | 2019-02-25 | A kind of vision inspection apparatus of line for polyethylene gas pipes sweat soldering connector |
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| Country | Link |
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| CN (1) | CN109682757A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887454A (en) * | 2019-12-09 | 2020-03-17 | 刘童童 | Road pipeline detection structure and detection method thereof |
| US20230226646A1 (en) * | 2020-06-12 | 2023-07-20 | Agru Korea Co., Ltd. | Weld bead inspection device |
| CN116576792A (en) * | 2023-07-12 | 2023-08-11 | 佳木斯大学 | Intelligent shooting integrated device based on Internet of things |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512954A (en) * | 2013-10-09 | 2014-01-15 | 浙江大学 | Device and method for automatic circumferential ultrasonic detection of joint of polyolefin composite tube |
| CN106124527A (en) * | 2016-08-29 | 2016-11-16 | 齐鲁工业大学 | A kind of weld tube detection device and the method utilizing this device to carry out quality testing |
| CN106959297A (en) * | 2017-03-27 | 2017-07-18 | 杭州雷神激光技术有限公司 | A kind of face of weld defect video real-time detecting system and its detection method |
| CN207798693U (en) * | 2018-01-09 | 2018-08-31 | 王仁荣 | A kind of face of weld defect intelligent detection device |
| CN108562647A (en) * | 2018-01-06 | 2018-09-21 | 浙江大学 | The polyethylene pipe hot melt banjo fixing butt jointing supersonic detection device and method that PA-TOFD is combined |
| CN208206881U (en) * | 2018-05-21 | 2018-12-07 | 泰州市诚安无损检测有限公司 | Polyethylene butt-fusion welded joint ultrasonic detection device |
-
2019
- 2019-02-25 CN CN201910137019.3A patent/CN109682757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512954A (en) * | 2013-10-09 | 2014-01-15 | 浙江大学 | Device and method for automatic circumferential ultrasonic detection of joint of polyolefin composite tube |
| CN106124527A (en) * | 2016-08-29 | 2016-11-16 | 齐鲁工业大学 | A kind of weld tube detection device and the method utilizing this device to carry out quality testing |
| CN106959297A (en) * | 2017-03-27 | 2017-07-18 | 杭州雷神激光技术有限公司 | A kind of face of weld defect video real-time detecting system and its detection method |
| CN108562647A (en) * | 2018-01-06 | 2018-09-21 | 浙江大学 | The polyethylene pipe hot melt banjo fixing butt jointing supersonic detection device and method that PA-TOFD is combined |
| CN207798693U (en) * | 2018-01-09 | 2018-08-31 | 王仁荣 | A kind of face of weld defect intelligent detection device |
| CN208206881U (en) * | 2018-05-21 | 2018-12-07 | 泰州市诚安无损检测有限公司 | Polyethylene butt-fusion welded joint ultrasonic detection device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887454A (en) * | 2019-12-09 | 2020-03-17 | 刘童童 | Road pipeline detection structure and detection method thereof |
| US20230226646A1 (en) * | 2020-06-12 | 2023-07-20 | Agru Korea Co., Ltd. | Weld bead inspection device |
| CN116576792A (en) * | 2023-07-12 | 2023-08-11 | 佳木斯大学 | Intelligent shooting integrated device based on Internet of things |
| CN116576792B (en) * | 2023-07-12 | 2023-09-26 | 佳木斯大学 | Intelligent shooting integrated device based on Internet of things |
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Application publication date: 20190426 |