CN108288081B - System and method for positioning workpiece on spraying line - Google Patents
System and method for positioning workpiece on spraying line Download PDFInfo
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- CN108288081B CN108288081B CN201711292538.4A CN201711292538A CN108288081B CN 108288081 B CN108288081 B CN 108288081B CN 201711292538 A CN201711292538 A CN 201711292538A CN 108288081 B CN108288081 B CN 108288081B
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- 238000005507 spraying Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000006748 scratching Methods 0.000 claims description 30
- 230000002393 scratching effect Effects 0.000 claims description 30
- 230000003287 optical effect Effects 0.000 claims description 12
- 238000007790 scraping Methods 0.000 claims description 8
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 27
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
- G07C3/005—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles during manufacturing process
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Abstract
The invention discloses a system and a method for positioning a workpiece on a spraying line. The invention relates to the technical field of spraying processing, in particular to a system and a method for positioning workpieces on a spraying line.
Description
Technical Field
The invention relates to the technical field of spraying processing, in particular to a system and a method for positioning a workpiece on a spraying line.
Background
Rfid (radio Frequency identification), also known as rfid, is a communication technology that can identify a specific target and read related data through radio signals.
Along with the wider and wider application field of the RFID, people feel the convenience and the high efficiency brought by the RFID technology, the RFID is more and more popularized in the industry of 4.0, in the industrial production process, a workpiece to be sprayed is manually placed on a matched support (a scratching pry), and the supports can be different according to different workpieces. Generally, a support is divided into two sides, and workpieces can be placed on the upper side, the middle side and the lower side respectively, so that four (two left, two right) or six (three left, three right) or eight (four left, four right) corresponding workpieces can be placed on the support. After the workpiece is placed manually, the scratching pry is pushed forward along with an automatic assembly line, enters a spraying workshop through a lifting platform after links such as QA quality inspection and recording, and is sprayed by a robot according to a preset spraying scheme. After passing through a QA manual quality inspection station on a spraying line, a special person manually marks workpiece information, position numbers and the like in front of the elevator station, then inputs a corresponding spraying scheme on a computer in a process area, a corresponding scratching pry is pushed to a spraying workshop by a lifting table, and the robot processes according to the corresponding scratching pry number and the spraying scheme. Manual recording presents the following problems:
(1) the recording efficiency is low, and the working intensity is high;
(2) production errors caused by artificial recording errors are easy to occur;
(3) the workpiece can not be controlled to return to spraying in real time, and potential production quality hazards exist;
(4) the production state and the inventory state cannot be inquired in real time.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the workpiece positioning system on the spraying line, which can improve the production efficiency and the production quality, and can realize real-time inquiry of the production state and the inventory state.
In order to solve the technical problems, the invention aims to provide the workpiece positioning method on the spraying line, which can improve the production efficiency and the production quality, and can realize real-time inquiry of the production state and the inventory state.
The technical scheme adopted by the invention is as follows: a workpiece positioning system on a spraying line is applied to a spraying station, the spraying station comprises a gantry support, scraping prizes and workpieces placed on the scraping prizes, each scraping prize is correspondingly provided with a scraping prizes number, the system comprises an RFID system, an RFID reader-writer, an RFID antenna, a PLC system and electronic tags, wherein each workpiece is adhered with a corresponding electronic tag, the RFID reader-writer and the RFID antenna are both arranged on the gantry support, the RFID reader-writer is respectively connected with the RFID antenna and the RFID system, the RFID antenna is used for reading the electronic tag information in real time, the RFID system is used for managing, controlling and adjusting the read-write strategy of the RFID reader-writer and the RFID antenna, the RFID system is communicated with a remote server, the RFID system is connected with the PLC system, and the PLC system is used for acquiring the scratching prying number.
As a further improvement of the scheme, the RFID antenna comprises a far-field RFID antenna and a near-field RFID antenna, the far-field RFID antenna is arranged at the front end of the station, and the near-field RFID antenna is arranged on two sides of the gantry support.
As a further improvement of the above scheme, the system further comprises an optical decoder, the optical decoder is arranged on the spraying assembly line, and the optical decoder is connected with the PLC system and is used for acquiring the current sled number and recording the current timestamp.
As a further improvement of the above scheme, the system further includes a photoelectric sensor, and the photoelectric sensor is connected to the optical decoder and the RFID reader/writer, respectively.
As a further improvement of the above scheme, the RFID reader is connected to the RFID antenna through an antenna feeder.
As a further improvement of the scheme, the system further comprises an alarm, and the alarm is connected with the RFID system.
A method for positioning a workpiece on a spraying line is suitable for the system for positioning the workpiece on the spraying line, and comprises the following steps:
s1, when the sled enters the gantry support area, the RFID reader reads the electronic tag on the workpiece in real time through the far-field RFID antenna to obtain tag information;
s2, when the RFID reader-writer successfully reads the electronic tag on the workpiece, the obtained tag information is uploaded to the RFID system, and a corresponding reading strategy is obtained from the RFID system;
s3, the RFID reader controls the near-field RFID antenna to read the electronic tag on the workpiece according to the reading strategy, acquires and records workpiece positioning information and workpiece spraying information, and sends the read workpiece positioning information and the read workpiece spraying information to the RFID system;
s4, the PLC system obtains the current scratching pry number and sends the current scratching pry number to the RFID system; the RFID system matches and binds the acquired workpiece positioning information and workpiece spraying information with the current scratching pry number to acquire binding positioning information of each workpiece on the current scratching pry, and uploads the binding positioning information to the RFID system, and the RFID system uploads the workpiece data to a remote server.
As a further improvement of the above scheme, the step S1 specifically includes the sub-steps of:
s11, when the sled enters the gantry support area, the photoelectric sensor is triggered to act, and the photoelectric sensor triggers the RFID reader-writer and the PLC system to start working;
and S12, the RFID reader-writer reads the electronic tag on the workpiece in real time through the far-field RFID antenna to acquire tag information.
As a further improvement of the above solution, the read strategy includes: starting the corresponding array combination near-field RFID antenna, controlling the working power of each RFID antenna, obtaining the current workpiece information and obtaining the spraying scheme corresponding to the workpiece.
As a further improvement of the above scheme, the workpiece data includes label information, a prying number, workpiece positioning information, workpiece spraying information, and binding positioning information.
The invention has the beneficial effects that:
the utility model provides a work piece positioning system on spraying line, through combining RFID system, RFID read write line, RFID antenna, PLC system and electronic tags, binds and uploads work piece information, positional information, draw sled information and spraying scheme to remote server, reduces the production quality hidden danger that manual operation brought, improves production efficiency and production quality, realizes production state and stock state of inquiry in real time.
A workpiece positioning method on a spraying line is characterized in that workpiece information, positioning information, scratching and prying information and a spraying scheme are bound and uploaded to a remote server by combining an RFID system, an RFID reader-writer, an RFID antenna, a PLC system and an electronic tag, so that the hidden danger of production quality caused by manual operation is reduced, the production efficiency and the production quality are improved, and the production state and the inventory state can be inquired in real time.
Drawings
The following further describes embodiments of the present invention with reference to the accompanying drawings:
FIG. 1 is a block diagram of a workpiece positioning system for a coating line according to the present invention;
FIG. 2(a) is a schematic front view of a gantry support of a workpiece positioning system for a coating line according to the present invention;
FIG. 2(b) is a schematic side view of a gantry support of a workpiece positioning system on a coating line according to the present invention;
FIG. 3 is a flow chart of a method of positioning a workpiece on a coating line according to the present invention;
fig. 4 is a flow chart of the RFID reader reading the information of the electronic tag of the workpiece according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The utility model provides a workpiece positioning system on spraying line, includes the longmen support, draws the sled and places the work piece on drawing the sled, every is drawn to correspond on the sled and is provided with and draws the sled serial number.
Fig. 1 is a block diagram of a module of a workpiece positioning system on a spraying line according to the present invention, and as shown in fig. 1, the positioning system includes an RFID system, an RFID reader, an RFID antenna, a PLC system, and electronic tags, and corresponding electronic tags are attached to each workpiece one by one, and in this embodiment, the electronic tags are RFID tags. The RFID reader-writer and the RFID antenna are arranged on the gantry support, the RFID reader-writer is respectively connected with the RFID antenna and the RFID system, the RFID antenna reads electronic tag information in real time through radio frequency identification, the RFID system is communicated with the RFID reader-writer through a TCP/IP protocol, and the RFID reader-writer is connected with the RFID antenna through an antenna feeder line and used for managing, controlling and adjusting a read-write strategy of the RFID antenna through the RFID reader-writer. The RFID system is communicated with the remote server and uploads the obtained data to the remote server, the RFID system is connected with the PLC system, the RFID system is communicated with the PLC system through a TCP/IP protocol, and the PLC system is used for obtaining the scratching number.
In particular, the RFID antennas include far field RFID antennas and near field RFID antennas.
In addition, the positioning system further comprises an optical decoder (not shown in fig. 1), the optical decoder is arranged on the spraying assembly line, and the optical decoder is connected with the PLC system and used for acquiring the scratching pry number on the current scratching pry and recording the time stamp.
The positioning system further comprises a photoelectric sensor (not shown in fig. 1), which is connected to the optical decoder and the RFID reader, respectively.
The system also comprises an alarm which is connected with the RFID system.
Fig. 2(a) is a schematic front view of a gantry support of a workpiece positioning system on a spraying line, and fig. 2(b) is a schematic side view of the gantry support of the workpiece positioning system on the spraying line, and with reference to fig. 1, fig. 2(a) and fig. 2(b), a gantry support 1 is installed on the spraying line, in this embodiment, the gantry support 1 is made of an aluminum profile. The two RFID readers 2 are arranged on the gantry support 1, in this embodiment, the two RFID readers 2 are correspondingly connected with the near-field RFID antenna 31 and the far-field RFID antenna 32 through the antenna feed lines 4, and the RFID reader 2 controls the combination start of the near-field RFID antenna 31 array (that is, controls which near-field RFID antennas 31 are started) and controls the working power of the RFID antennas through the antenna feed lines 4. The near field RFID antennas 31 are arranged on two sides of the gantry support 1, in this embodiment, the number of the near field RFID antennas 31 is fourteen (the number of the antennas can be set according to actual conditions), seven near field RFID antennas 31 are arranged on each side of the gantry support 1, the far field RFID antennas 32 are arranged at the front end of the station, in this embodiment, the number of the far field RFID antennas 32 is two (the number of the antennas can be set according to actual conditions), and the two far field RFID antennas 32 are arranged at the front end of the station.
The gantry support 1 is also provided with two photoelectric sensors which are respectively a first photoelectric sensor 51 and a second photoelectric sensor 52, the two photoelectric sensors are both connected with the RFID reader-writer 2, wherein the first photoelectric sensor 51 is arranged at the front end of a station, the second photoelectric sensor 52 is arranged at the rear end of the near field RFID antenna 31, when a sled enters the gantry support 1 area, the sled firstly passes through the remote RFID antenna 32 and the first photoelectric sensor 51, after the first photoelectric sensor 51 is triggered to act, the remote RFID antenna 32 is started to read the electronic tag on the workpiece, and then sequentially passes through the near field RFID antenna 32 and the second photoelectric sensor 52, the near field RFID antenna 32 reads the electronic tag information on the workpiece under the control of the RFID reader-writer 2 to obtain the workpiece positioning information and the workpiece spraying information, when the sled passes through the second photoelectric sensor 52, the second photoelectric sensor 52 is triggered to act, the RFID reader 2 controls the near field RFID antenna 31 to stop reading information and triggers the PLC system (not shown in fig. 2(a) and 2 (b)) to control the optical decoder to read the sled number on the sled.
The gantry support 1 is further provided with an alarm 6, the alarm 6 is connected with an RFID system (not shown in fig. 2(a) and 2 (b)), and when the RFID reader-writer 2 reads the abnormal condition, the RFID system triggers the alarm 6 to send out an alarm signal.
The utility model provides a work piece positioning system on spraying line, through combining RFID system, RFID read write line, RFID antenna, PLC system and electronic tags, binds and uploads work piece information, positional information, draw sled information and spraying scheme to remote server, reduces the production quality hidden danger that manual operation brought, improves production efficiency and production quality, realizes production state and stock state of inquiry in real time.
Fig. 3 is a flowchart of a method for positioning a workpiece on a coating line according to the present invention, and referring to fig. 3, a method for positioning a workpiece on a coating line includes the steps of:
s1, when the sled enters the gantry support area, the RFID reader reads the electronic tag on the workpiece in real time through the far-field RFID antenna to obtain tag information;
specifically, step S1 includes the sub-steps of:
s11, when the sled enters the gantry support area, triggering a first photoelectric sensor to act, and triggering the RFID reader-writer and the PLC system to start working by the first photoelectric sensor;
and S12, the RFID reader-writer reads the electronic tag on the workpiece in real time through the far-field RFID antenna to acquire tag information.
S2, when the RFID reader-writer successfully reads the electronic tag on the workpiece, the obtained tag information is uploaded to the RFID system, and a corresponding reading strategy is obtained from the RFID system; the reading strategy comprises the following steps: starting the corresponding array combination near-field RFID antenna, controlling the working power of each RFID antenna, obtaining the current workpiece information and obtaining the spraying scheme corresponding to the workpiece.
And S3, controlling the near-field RFID antenna to read the electronic tag on the workpiece by the RFID reader according to the reading strategy, acquiring and recording workpiece positioning information and workpiece spraying information, and sending the read workpiece positioning information and workpiece spraying information to the RFID system.
S4, when the near field RFID antenna reads the electronic tag, the PLC system obtains the current prying number and sends the current prying number to the RFID system; the RFID system matches and binds the acquired workpiece positioning information and workpiece spraying information with the current scratching pry number to obtain the binding positioning information of each workpiece on the current scratching pry, and uploads the binding positioning information to the RFID system, and the RFID system uploads the workpiece data to the remote server.
Step S4 specifically includes: after the near field RFID antenna reads the electronic tag, the scratching pry continues to move to trigger the second photoelectric sensor to act, the second photoelectric sensor triggers the PLC system to work, and the PLC system acquires the current scratching pry number and sends the current scratching pry number to the RFID system; the RFID system matches and binds the acquired workpiece positioning information and workpiece spraying information with a current scratching pry number to obtain the binding positioning information of each workpiece on the current scratching pry, namely the number of the workpieces placed on each scratching pry and the corresponding placement positions of the workpieces on each side on the scratching pry, and uploads the binding positioning information to the RFID system, and the RFID system uploads the workpiece data to a remote server. The workpiece data comprises label information, a scratching number, workpiece positioning information, workpiece spraying information and binding positioning information. The user can inquire the production data of the workpiece, the spraying quality information and track, inquire and position in the remote server in real time.
Fig. 4 is a flow chart of the RFID reader reading information of a workpiece electronic tag of the present invention, referring to fig. 4, the system is initialized, when a sled enters a gantry support area, the RFID reader judges whether a photoelectric sensor is triggered, if not, the system returns to an initial state, if yes, the RFID reader is triggered to start a remote RFID antenna to read tag information of an RFID tag, and the next step is entered: judging whether a far-field RFID antenna successfully reads an RFID label or not, if not, returning to the initial state of the system, if so, uploading label information to the RFID system, acquiring a workpiece reading strategy, controlling a near-field RFID antenna array to read the RFID label according to the reading strategy, wherein a plurality of near-field RFID antennas are arranged on both sides of a gantry support, an RFID reader-writer is used for array combination of the near-field RFID antennas to read the workpiece positioning information of the RFID label according to the reading strategy, the RFID reader-writer is used for judging whether the near-field RFID antennas successfully position the workpiece or not, if not, sending an abnormal alarm, if so, entering the next judgment, reading workpiece spraying information according to the reading strategy, judging whether the corresponding workpiece spraying times are legal (namely whether the corresponding workpiece completes the system customization corresponding spraying steps or not), if not, sending the abnormal alarm, and if so, synchronizing a PLC (programmable logic controller) dividing a prying number, and binding the scratching number, the workpiece positioning information and the workpiece spraying information to obtain binding positioning information, and uploading the binding positioning information data to the RFID system, so that the RFID reader-writer finishes information reading.
A workpiece positioning method on a spraying line is characterized in that workpiece information, positioning information, scratching and prying information and a spraying scheme are bound and uploaded to a remote server by combining an RFID system, an RFID reader-writer, an RFID antenna, a PLC system and an electronic tag, so that the labor intensity of workers is greatly reduced, the hidden danger of production quality caused by manual operation is avoided, the production efficiency and the production quality monitoring are improved, meanwhile, effective data are provided for subsequent production links, and the production state and the stock state can be inquired in real time.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A workpiece positioning system on a spraying line is applied to a spraying station, the spraying station comprises a gantry support, scraping prizes and workpieces placed on the scraping prizes, each scraping prize is correspondingly provided with a scraping prizes number, it is characterized in that the system comprises an RFID system, an RFID reader-writer, an RFID antenna, a PLC system and electronic tags, wherein each workpiece is adhered with a corresponding electronic tag, the RFID reader-writer and the RFID antenna are both arranged on the gantry support, the RFID reader-writer is respectively connected with the RFID antenna and the RFID system, the RFID antenna is used for reading the electronic tag information in real time, the RFID system is used for managing, controlling and adjusting the read-write strategy of the RFID reader-writer and the RFID antenna, the RFID system is communicated with a remote server, the RFID system is connected with the PLC system, and the PLC system is used for acquiring the prying number;
the RFID antenna comprises a far-field RFID antenna and a near-field RFID antenna, the far-field RFID antenna is arranged at the front end of the station, and the near-field RFID antenna is arranged on two sides of the gantry support;
the system further comprises an optical decoder, wherein the optical decoder is arranged on the spraying assembly line and connected with the PLC system, and is used for acquiring the current scratching serial number and recording the current timestamp.
2. The system of claim 1, further comprising a photo sensor, wherein the photo sensor is connected to the optical decoder and the RFID reader/writer.
3. The system of any one of claims 1 to 2, wherein the RFID reader is connected to the RFID antenna by an antenna feed.
4. The system of claim 3, further comprising an alarm coupled to the RFID system.
5. An on-line workpiece positioning method for the on-line workpiece positioning system according to any one of claims 1 to 4, comprising the steps of:
s1, when the sled enters the gantry support area, the RFID reader reads the electronic tag on the workpiece in real time through the far-field RFID antenna to obtain tag information;
s2, when the RFID reader-writer successfully reads the electronic tag on the workpiece, the obtained tag information is uploaded to the RFID system, and a corresponding reading strategy is obtained from the RFID system;
s3, the RFID reader controls the near-field RFID antenna to read the electronic tag on the workpiece according to the reading strategy, acquires and records workpiece positioning information and workpiece spraying information, and sends the read workpiece positioning information and the read workpiece spraying information to the RFID system;
s4, the PLC system obtains the current scratching pry number and sends the current scratching pry number to the RFID system; the RFID system matches and binds the acquired workpiece positioning information and workpiece spraying information with the current scratching pry number to acquire binding positioning information of each workpiece on the current scratching pry, and uploads the binding positioning information to the RFID system, and the RFID system uploads the workpiece data to a remote server.
6. The method as claimed in claim 5, wherein the step S1 comprises the following steps:
s11, when the sled enters the gantry support area, the photoelectric sensor is triggered to act, and the photoelectric sensor triggers the RFID reader-writer and the PLC system to start working;
and S12, the RFID reader-writer reads the electronic tag on the workpiece in real time through the far-field RFID antenna to acquire tag information.
7. The method of claim 6, wherein the reading strategy comprises: starting the corresponding array combination near-field RFID antenna, controlling the working power of each RFID antenna, obtaining the current workpiece information and obtaining the spraying scheme corresponding to the workpiece.
8. The method of claim 7, wherein the workpiece data comprises label information, a sled number, workpiece positioning information, workpiece spraying information, and binding positioning information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711292538.4A CN108288081B (en) | 2017-12-08 | 2017-12-08 | System and method for positioning workpiece on spraying line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711292538.4A CN108288081B (en) | 2017-12-08 | 2017-12-08 | System and method for positioning workpiece on spraying line |
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| CN108288081B true CN108288081B (en) | 2021-04-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10776594B1 (en) * | 2019-10-31 | 2020-09-15 | Crean Innovations, Llc | Method and system for discrete object tracking |
| CN111079871A (en) * | 2019-11-30 | 2020-04-28 | 深圳精匠云创科技有限公司 | Locking control method, locking device and control device based on electronic tag |
| CN113031550A (en) * | 2021-03-09 | 2021-06-25 | 机械工业第九设计研究院有限公司 | RFID automatic identification system and identification method for welding workshop appliance |
| CN113762985A (en) * | 2021-09-02 | 2021-12-07 | 唐山贺祥智能科技股份有限公司 | Method for generating ceramic product tracing system |
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| CN108288081A (en) | 2018-07-17 |
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