CN111561869A - Intelligent detection device and method for vehicle body space position and application thereof - Google Patents
Intelligent detection device and method for vehicle body space position and application thereof Download PDFInfo
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- CN111561869A CN111561869A CN202010444098.5A CN202010444098A CN111561869A CN 111561869 A CN111561869 A CN 111561869A CN 202010444098 A CN202010444098 A CN 202010444098A CN 111561869 A CN111561869 A CN 111561869A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
Abstract
The invention has proposed a car body space position intellectual detection system, method and its application, read the information of each dolly through the RFID reader-writer, then compare with laser correlation photoelectric switch detection; if the position of the painting workpiece on the transport trolley is consistent with the position of the coating workpiece on the transport trolley in the vertical direction and the installation condition of the painting workpiece on the transport trolley can be obtained through the triggering conditions of the n laser correlation photoelectric switches, the position of the painting workpiece on the horizontal direction can be obtained through the triggering conditions of the m proximity switches, and meanwhile, an alarm is given and the section of the conveying chain is stopped, so that production personnel can confirm the position of the painting workpiece and the installation condition of the painting workpiece, and the waste of manpower, energy and the like caused by collision, robbery, scrapping and back spraying due to poor inflow of a hanging tool into the painting can be prevented; compared with a purely used vision system, the system is simple, good in reliability, strong in flexibility, low in cost and convenient to maintain; a plurality of proximity switches are arranged on the transport line, multi-point detection can be achieved, and the transverse fault-tolerant capability is strong.
Description
Technical Field
The invention relates to the field of automobile bumper body detection, in particular to an intelligent detection device and method for a space position of an automobile body and application thereof.
Background
At present, before coating, a part to be coated needs to be put on a hanger, and then a coating process is completed through a coating production line. However, in practical application, the situations of coating workpiece-loading hanger misplacing, column hole position misplacing, product misplacing and product not in place occur occasionally, which results in collision and robbery of robots in the processes of pretreatment of coating, drying room, workpiece dropping of spraying room and spraying room. Therefore, in order to solve the problems, the invention provides an intelligent detection device and method for the spatial position of a vehicle body and application thereof.
Disclosure of Invention
In view of the above, the invention provides an intelligent detection device and method for the spatial position of a vehicle body and application thereof, subsequent accidents of workpiece falling and collision and robbery caused by coating workpiece loading hanger mistake, column hole position mistake, product mistake and product not in place can be predicted and solved in advance, and the problem of collision and robbery is obviously improved.
The technical scheme of the invention is realized as follows: the invention provides an intelligent detection device for the space position of a vehicle body, which comprises a transportation line, a vehicle body detection device, a PLC (programmable logic controller) control cabinet and an RFID reader-writer, wherein the transportation line is connected with the vehicle body detection device;
the vehicle body detection device comprises a door frame type photoelectric scanner and m proximity switches;
the m proximity switches are uniformly arranged under the transport line at equal intervals, the door frame type photoelectric scanner is erected on two sides of the transport line and is arranged on the transport line at a position corresponding to one proximity switch, the transport trolley sequentially triggers the m proximity switches and passes through the door frame type photoelectric scanner at a constant speed during production, and the RFID reader-writer is arranged at one side of the transport line and is just opposite to the position of a label on the transport trolley;
and the RFID reader-writer, the door frame type photoelectric scanner and the proximity switch are respectively electrically connected with the analog input end of the PLC control cabinet.
On the basis of the above technical scheme, it is further preferable that the gate frame type photoelectric scanner includes a gate frame and n laser correlation photoelectric switches;
the portal is established in the both sides of transport line, and the receiving terminal and the transmitting terminal of laser correlation photoelectric switch install respectively in portal both sides relative position, and n laser correlation photoelectric switch evenly equidistantly sets up on the portal.
On the other hand, the invention provides an intelligent detection method for the spatial position of a vehicle body, which comprises the following steps:
s1, scanning the coating workpiece loaded on the transport trolley by a door frame type photoelectric scanner for m times, generating a group of scanning data each time of scanning, extracting the characteristics of the scanning data, and establishing a mathematical model according to the characteristics;
the mounting position of the coating workpiece on the transport trolley is correct or incorrect;
s2, enabling the transport line carrying transport trolley to advance at a constant speed, acquiring scanning data of a coating workpiece on the transport trolley through a door frame type photoelectric scanner, inputting the scanning data into a mathematical model for judgment and data cleaning, and outputting characteristics corresponding to the scanning data through a data model;
and S3, judging whether the coating workpiece has the conditions of wrong hanging tool, wrong column hole position, wrong product or not according to the characteristics output by the data model.
On the basis of the above technical solution, it is further preferable that the scan data includes a set of binary data; the binary data represents the conduction condition of n laser correlation photoelectric switches on the gate frame type photoelectric scanner, wherein '1' represents that the laser correlation photoelectric switches are conducted, and '0' represents that the laser correlation photoelectric switches are not conducted.
Based on the above technical solution, it is further preferable that the characteristics of the scan data in S1 include: feature 1-feature 5;
the method is characterized in that: when the installation position of the coating workpiece on the transport trolley is correct, the conduction condition of the n laser correlation photoelectric switches is met;
and (2) feature: when the mounting position of the coating workpiece on the transport trolley is wrong, the conduction condition of the n laser correlation photoelectric switches is realized;
and (3) feature: when the mounting position of the coating workpiece on the transport trolley is wrong, the conduction condition of the n laser correlation photoelectric switches is realized;
and (4) feature: when the installation position of the coating workpiece on the transport trolley is wrong, the conduction condition of the n laser correlation photoelectric switches is realized;
and (5) feature: when the situation that the product is not in place appears at the installation position of the coating workpiece on the transport trolley, the conduction situation of the n laser correlation photoelectric switches is realized.
Based on the above technical solution, it is further preferable that S2 further includes: comparing the scan data in this step with the scan data in S1, to obtain the characteristics of the scan data in this step.
Based on the above technical solution, it is further preferable that S2 further includes: the RFID reader-writer identifies the label of the transport trolley and the model of the coated workpiece, and associates the identification data of the RFID reader-writer with the scanning data.
Based on the above technical solution, it is further preferable that S2 further includes: the transportation line carrying transportation trolley advances at a constant speed, m proximity switches are sequentially triggered, when one proximity switch is triggered, a door frame type photoelectric scanner scans once and generates a group of scanning data, the triggering conditions of the m proximity switches are represented by a group of binary data, wherein '1' represents that the proximity switches are triggered, and '0' represents that the proximity switches are not triggered, and the binary data are respectively correlated with the identification data and the scanning data of the RFID reader-writer.
Based on the above technical solution, it is further preferable that S3 further includes: if the coating workpiece does not have the conditions of wrong hanging tool, wrong column hole position, wrong product or improper product, the conveying line carries the conveying trolley to continue to advance;
if the coating workpiece has the conditions of wrong hanging tool, wrong column hole position, wrong product or incomplete product, alarming and stopping the section of conveying chain, obtaining the model of the coating workpiece and the label of a transport trolley carrying the coating workpiece according to the RFID reader-writer, obtaining the position of the coating workpiece in the vertical direction according to the triggering conditions of the n laser correlation photoelectric switches, obtaining the position of the coating workpiece in the horizontal direction according to the triggering conditions of the m proximity switches, and further obtaining the specific position of the coating workpiece on the transport trolley.
The invention also provides an application of the intelligent detection device for the spatial position of the vehicle body, and the intelligent detection device for the spatial position of the vehicle body is applied to the coating process of the automobile bumper.
Compared with the prior art, the intelligent detection device and method for the space position of the vehicle body and the application thereof have the following beneficial effects:
(1) reading the information of each trolley through an RFID reader-writer, and then comparing the information with the information detected by an actual photoelectric switch; if the position of the painting workpiece on the transport trolley is consistent with the position of the coating workpiece on the transport trolley in the vertical direction and the installation condition of the painting workpiece on the transport trolley can be obtained through the triggering conditions of the n laser correlation photoelectric switches, the position of the painting workpiece on the horizontal direction can be obtained through the triggering conditions of the m proximity switches, and meanwhile, an alarm is given and the section of the conveying chain is stopped, so that production personnel can confirm the position of the painting workpiece and the installation condition of the painting workpiece, and the waste of manpower, energy and the like caused by collision, robbery, scrapping and back spraying due to poor inflow of a hanging tool into the painting can be prevented; compared with a purely used vision system, the system is simple, good in reliability, strong in flexibility, low in cost and convenient to maintain;
(2) the online detection can be carried out without stopping the transport trolley, and the production takt time is not occupied;
(3) in the invention, a plurality of proximity switches are arranged on the transport line, so that multi-point detection can be realized, and the transverse fault-tolerant capability is strong;
(4) the intelligent detection device for the space position of the vehicle body is arranged on two sides of the original transport line, does not influence the functions of the original production line, belongs to the additional arrangement of the newly added functions, and has strong expansibility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an intelligent detection assembly line for the spatial position of a vehicle body according to the present invention;
fig. 2 is a schematic view of an electrical connection structure of the intelligent detection device for the spatial position of the vehicle body.
In the figure, 1-transport line, 2-vehicle body detection device, 21-door frame type photoelectric scanner, 21-1-door frame, 21-2-laser correlation photoelectric switch, 22-proximity switch and 3-RFID reader-writer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1, the intelligent detection device for the spatial position of the vehicle body of the invention comprises a transportation line 1, a vehicle body detection device 2, a PLC control cabinet and an RFID reader-writer 3.
And the RFID reader-writer 3 is used for identifying the label of the transport trolley and the type of the coating workpiece. In this embodiment, the RFID reader/writer 3 is a double-jiafu code reader, and the RFID reader/writer is arranged at a position on one side of the transport line, which is opposite to the label on the transport trolley. As shown in fig. 2, the RFID reader/writer 3 is electrically connected to the analog input terminal of the PLC control cabinet. The RFID reader-writer 3 adopts a PROFIBUS communication protocol to communicate with the PLC control cabinet. In this embodiment, the vehicle body detection station is the erection position of the door frame type photoelectric scanner 21; after the transport trolley reaches the vehicle body detection station, the RFID reader-writer 3 reads the label of the transport trolley and the model of a coating workpiece, identifies what array type products are placed on each layer of the transport trolley, and whether the products are front protection or rear protection, and transmits the read results to the PLC control cabinet for judgment and comparison with the detection information of the vehicle body detection device. The identification of the model of the product to be tested by the RFID reader 3 belongs to the common general knowledge in the art, and a person skilled in the art can know the working principle and implementation process of the RFID reader 3 through the existing technology, and this part belongs to the existing technology, and a person skilled in the art can know the software and hardware parts of the RFID reader 3 without any doubt when knowing the content described in this embodiment, so the specific structure and implementation process of the RFID reader 3 are not described again.
And the vehicle body detection device 2 is used for detecting the position of the coating workpiece on the transport trolley and the installation state of the coating workpiece. As shown in fig. 1, the vehicle body detection device 2 includes a door frame type photoelectric scanner 21 and m proximity switches 22.
Further preferably, as shown in fig. 1, m proximity switches 22 are uniformly and equally spaced under the transport line 1, the gate frame type photoelectric scanner 21 is erected at two sides of the transport line 1 and is installed on the transport line 1 at a position corresponding to a certain proximity switch 22, and the transport cart sequentially triggers the m proximity switches 22 and passes through the gate frame type photoelectric scanner 21 at a constant speed during production. In this embodiment, m proximity switches 22 are numbered from 1 to m, the position of the carriage on the transport line 1 is known through the triggering condition of the proximity switches 22, and the scanning frequency of the gate frame type photoelectric scanner 21 is equal to the moving speed of the carriage, that is, the scanning frequency of the gate frame type photoelectric scanner 21 is the same as the frequency of the carriage triggering the proximity switches 22.
Preferably, the proximity switch 22 is mainly used for sensing the position information of the transportation trolley and cooperating with the door frame type photoelectric scanner 21, the product data at different positions are read out by the PLC, and then compared with the product data identified by the RFID reader/writer 3, and a correct or wrong signal is given. In this embodiment, as shown in fig. 2, the proximity switches 22 are electrically connected to the analog input terminals of the PLC control cabinet, respectively.
Further preferably, as shown in fig. 1, the gate frame type photoelectric scanner 21 includes a gate 21-1 and n laser correlation photoelectric switches 21-2; the portal 21-1 is arranged at two sides of the transport line, the receiving end and the transmitting end of the laser correlation photoelectric switch 21-2 are respectively arranged at opposite positions at two sides of the portal 21-1, and the n laser correlation photoelectric switches 21-2 are uniformly arranged on the portal 21-1 at equal intervals. In the embodiment, n laser correlation photoelectric switches 21-2 are numbered from 1 to n, the conduction condition of the n laser correlation photoelectric switches 21-2 is the installation condition of the coating workpiece on the transport trolley, and whether the coating workpiece has a hanger mistake, an upright hole position mistake, a product mistake or a product not in place can be judged according to the conduction condition of the n laser correlation photoelectric switches 21-2. Supposing that a coating workpiece has a condition of a wrong hanger, a wrong column hole position, a wrong product or a product not in place, the output result of the corresponding laser correlation photoelectric switch 21-2 is different from the output results of the other laser correlation photoelectric switches 21-2, at the moment, the model of the coating workpiece and the label of a transport trolley carrying the coating workpiece can be obtained according to the RFID reader-writer 3, the position of the coating workpiece on the transport trolley along the vertical direction can be obtained according to the triggering conditions of the n laser correlation photoelectric switches 21-2, the position of the coating workpiece on the horizontal direction can be obtained according to the triggering conditions of the m proximity switches 22 at the moment, and the specific position of the coating workpiece with the wrong installation position on the transport trolley can be obtained.
The arrangement of the laser correlation photoelectric switch 21-2 meets the characteristic recognition of three and various products, and the gantry 21-1 is made of aluminum alloy sections, so that the position of the photoelectric switch can be conveniently and quickly changed when the products are changed in the future, and the flexibility is realized.
Preferably, the PLC control cabinet is arranged on the side of the vehicle body detection station and used for signal acquisition, data reading, program judgment, alarming and the like. The control cabinet is divided into an upper part and a lower part, the upper part is used for placing a WinCC workstation, the lower part is provided with electrical elements such as a PLC (programmable logic controller) and a CPU (central processing unit), the PLC adopts Siemens S7-300 series PLC, the CPU uses 317-2PN/DP, DP and Ethernet interfaces are integrated, the RFID reader-writer 3 and the WinCC workstation are communicated, and meanwhile, the plan information of the PLC system of the existing conveying chain equipment is read based on an Ethernet communication mode.
The working flow of this embodiment is: when the transport trolley arrives at a detection station on a transport line, the RFID reader-writer 3 reads product information, meanwhile, the transport trolley continues to advance to pass through the door frame type photoelectric scanner 21, when the trolley arrives at the first proximity switch 22, the door frame type photoelectric scanner 21 reads a group of correlation switch data, when the second, third and fourth proximity switches 22 are detected, a group of data is read respectively, the four groups of data are compared with the product information read by the RFID reader-writer 3, whether the data are consistent or not is judged, if the data are inconsistent, an error is considered and an alarm is given, an operator is informed to process the data, and the condition that workpieces are bad or hangers are bad and flow into coating is prevented, so that the wastes of manpower, energy and the like of collision and robbery, scrapping, back spraying are avoided.
The beneficial effect of this embodiment does: reading the information of each trolley through the RFID reader-writer 3, and comparing the information with the information detected by an actual photoelectric switch; if the positions of the coating workpieces on the transport trolley are consistent, the positions and the installation conditions of the coating workpieces on the transport trolley along the vertical direction can be obtained through the triggering conditions of the n laser correlation photoelectric switches 21-2, the positions of the coating workpieces on the horizontal direction can be obtained through the triggering conditions of the m proximity switches 22, meanwhile, an alarm is given and the section of the conveying chain is stopped, so that production personnel can confirm the positions, the situation that the workpieces are bad or hangers are bad, and the waste of manpower, energy and the like caused by collision, scrapping and spraying return is prevented; compared with a purely used vision system, the system is simple, good in reliability, strong in flexibility, low in cost and convenient to maintain;
the online detection can be carried out without stopping the transport trolley, and the production takt time is not occupied;
in this embodiment, the proximity switches 22 are arranged on the transportation line, so that multi-point detection can be realized, and the transverse fault-tolerant capability is strong;
the intelligent detection device for the space position of the vehicle body is arranged on two sides of an original transport line, does not affect the functions of the original transport line, belongs to the additional installation of a newly added function, and is high in expansibility.
Example 2
On the basis of embodiment 1, this embodiment adopts the intelligent detection device of embodiment 1 to realize an intelligent detection method for a vehicle body spatial position, which includes the following steps:
s1, scanning the coating workpiece loaded on the transport trolley by the door frame type photoelectric scanner 21 m times, generating a group of scanning data each time of scanning, extracting the characteristics of the scanning data, and establishing a mathematical model according to the characteristics;
the mounting position of the coating workpiece on the transport trolley is correct or incorrect;
wherein the scan data comprises a set of binary data; the binary data represents the conduction condition of n laser correlation photoelectric switches 21-2 on the gate frame type photoelectric scanner 21, wherein "1" represents that the laser correlation photoelectric switch 21-2 is conducted, and "0" represents that the laser correlation photoelectric switch 21-2 is not conducted;
in this embodiment, the characteristics of the scan data include: feature 1-feature 5.
The method is characterized in that: when the installation position of the coating workpiece on the transport trolley is correct, the conduction condition of the n laser correlation photoelectric switches 21-2 is met;
and (2) feature: when the mounting position of the coating workpiece on the transport trolley is wrong, the conduction condition of the n laser correlation photoelectric switches 21-2 is realized;
and (3) feature: when the mounting position of the coating workpiece on the transport trolley is wrong, the conduction condition of the n laser correlation photoelectric switches 21-2 is realized;
and (4) feature: when the installation position of the coating workpiece on the transport trolley is wrong, the conduction condition of the n laser correlation photoelectric switches 21-2 is realized;
and (5) feature: when the situation that the product is not in place appears at the installation position of the coating workpiece on the transport trolley, the conduction situation of the n laser correlation photoelectric switches 21-2 is achieved.
The characteristic of the scanning data is that when the coating workpiece has a wrong hanger, a wrong column hole position, a wrong product or a product is not in place, the specific conduction conditions of the n laser correlation photoelectric switches 21-2 can be known, and whether the coating workpiece has a wrong hanger, a wrong column hole position, a wrong product or a product is not in place can be known according to the specific conduction conditions. The characteristic conduction condition is: the difference between the present on-state and the feature 1. For example, if the feature 1 is that all of the n laser correlation photoelectric switches 21-2 are turned on, and if there is a case where the adjacent laser correlation photoelectric switch 21-2 is not turned on in the n laser correlation photoelectric switches 21-2 corresponding to the feature 2, the particular turning-on case is that the adjacent laser correlation photoelectric switch 21-2 is not turned on. If the adjacent laser correlation photoelectric switch 21-2 is not turned on in the scanning data, the coating workpiece is considered to belong to the feature 2, that is, the hanger is mistakenly put on.
S2, enabling the transport line carrying transport trolley to advance at a constant speed, acquiring scanning data of workpieces coated on the transport trolley through the door frame type photoelectric scanner 21, inputting the scanning data into a mathematical model for judgment and data cleaning, and outputting characteristics corresponding to the scanning data through a data model; the method comprises the following specific steps:
comparing the scanning data in the step with the scanning data in the step S1 to obtain the characteristics of the scanning data in the step;
using the RFID reader-writer 3 to identify the label of the transport trolley and the model of the coated workpiece, and associating the identification data of the RFID reader-writer 3 with the scanning data;
the transportation line 1 carries a transportation trolley to advance at a constant speed, m proximity switches 22 are sequentially triggered, when one proximity switch 22 is triggered, the door frame type photoelectric scanner 21 scans once and generates a group of scanning data, the triggering conditions of the m proximity switches 22 are represented by a group of binary data, wherein '1' represents that the proximity switch 22 is triggered, and '0' represents that the proximity switch 22 is not triggered, and the binary data are respectively correlated with the identification data and the scanning data of the RFID reader-writer 3;
and S3, judging whether the coating workpiece has the conditions of wrong hanging tool, wrong column hole position, wrong product or not according to the characteristics output by the data model.
In this step, still include: if the coating workpiece does not have the conditions of wrong hanging tool, wrong column hole position, wrong product or improper product, the conveying line carries the conveying trolley to continue to advance;
if the coating workpiece has the conditions of wrong hanging tool, wrong column hole position, wrong product or incomplete product, alarming and stopping the section of conveying chain, obtaining the model of the coating workpiece and the label of a transport trolley carrying the coating workpiece according to the RFID reader-writer 3, obtaining the position of the coating workpiece in the vertical direction according to the triggering conditions of the n laser correlation photoelectric switches 21-2, obtaining the position of the coating workpiece in the horizontal direction according to the triggering conditions of the m proximity switches 22, and further obtaining the specific position of the coating workpiece on the transport trolley.
The beneficial effect of this embodiment does: carrying out data mining, cleaning and analysis processing on the input scanning data based on the idea of big data to realize intelligent detection of the space position of the vehicle body; compared with the traditional manual detection, the method of the embodiment can predict whether the current coating workpiece has the problems of wrong hanging tool, wrong column hole position, wrong product or not-in-place product according to the specific trigger characteristics of the n laser correlation photoelectric switches 21-2 when the coating workpiece has the problems of wrong hanging tool, wrong column hole position, wrong product or not-in-place product, and can prevent the problems of bad hanging tool or bad hanging tool flowing into coating, resulting in waste of manpower, energy and the like of collision, scrapping and back spraying.
Example 3
The embodiment provides an application of an intelligent detection device for a vehicle body space position, and the intelligent detection device for the vehicle body space position is applied to a coating process of an automobile bumper.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a car body spatial position intellectual detection system device, its includes supply line (1), car body detection device (2) and PLC switch board, its characterized in that: the RFID reader-writer also comprises an RFID reader-writer (3);
the vehicle body detection device (2) comprises a door frame type photoelectric scanner (21) and m proximity switches (22);
the m proximity switches (22) are uniformly arranged under the transport line (1) at equal intervals, the door frame type photoelectric scanner (21) is erected on two sides of the transport line (1) and is installed on the transport line (1) at a position corresponding to a certain proximity switch (22), the transport trolley sequentially triggers the m proximity switches (22) and passes through the door frame type photoelectric scanner (21) at a constant speed during production, and the RFID reader-writer (3) is arranged at a position, opposite to a label on the transport trolley, of one side of the transport line (1);
and the RFID reader-writer (3), the door frame type photoelectric scanner (21) and the proximity switch (22) are respectively electrically connected with the analog input end of the PLC control cabinet.
2. The intelligent detection device for the spatial position of the vehicle body as claimed in claim 1, wherein: the gate frame type photoelectric scanner (21) comprises a gate frame (21-1) and n laser correlation photoelectric switches (21-2);
the gantry (21-1) is arranged on two sides of the transport line (1), the receiving end and the transmitting end of the laser correlation photoelectric switch (21-2) are respectively arranged at opposite positions on two sides of the gantry (21-1), and the n laser correlation photoelectric switches (21-2) are uniformly arranged on the gantry (21-1) at equal intervals.
3. An intelligent detection method for the space position of a vehicle body is characterized in that: the method comprises the following steps:
s1, scanning the coating workpiece loaded on the transport trolley for m times by a door frame type photoelectric scanner (21), generating a group of scanning data each time of scanning, extracting the characteristics of the scanning data, and establishing a mathematical model according to the characteristics;
the installation position of the coating workpiece on the transport trolley is correct or incorrect;
s2, carrying a transport trolley on a transport line (1) to advance at a constant speed, acquiring scanning data of a coated workpiece on the transport trolley through a door frame type photoelectric scanner (21), inputting the scanning data into a mathematical model to judge and clean data, and outputting characteristics corresponding to the scanning data through a data model;
and S3, judging whether the coating workpiece has the conditions of wrong hanging tool, wrong column hole position, wrong product or not according to the characteristics output by the data model.
4. The intelligent detection method for the spatial position of the vehicle body as claimed in claim 3, wherein: the scan data comprises a set of binary data; the binary data represents the conduction condition of n laser correlation photoelectric switches (21-2) on the gate frame type photoelectric scanner (21), 1 represents that the laser correlation photoelectric switches (21-2) are conducted, and 0 represents that the laser correlation photoelectric switches (21-2) are not conducted.
5. The intelligent detection method for the spatial position of the vehicle body as claimed in claim 4, wherein: the characteristics of the scan data in S1 include: feature 1-feature 5;
the method is characterized in that: when the installation position of the coating workpiece on the transport trolley is correct, the conduction condition of n laser correlation photoelectric switches (21-2) is realized;
and (2) feature: when the mounting position of the coating workpiece on the transport trolley is wrong, the conduction condition of n laser correlation photoelectric switches (21-2) is realized;
and (3) feature: when the mounting position of the coating workpiece on the transport trolley is wrong, the conduction condition of n laser correlation photoelectric switches (21-2) is realized;
and (4) feature: when the installation position of the coating workpiece on the transport trolley is wrong, the conduction condition of n laser correlation photoelectric switches (21-2) is realized;
and (5) feature: when the situation that the product is not in place appears at the installation position of the coating workpiece on the transport trolley, the conduction situation of the n laser correlation photoelectric switches (21-2) is realized.
6. The intelligent detection method for the spatial position of the vehicle body as claimed in claim 4, wherein: the S2 further includes: comparing the scan data in this step with the scan data in S1, to obtain the characteristics of the scan data in this step.
7. The intelligent detection method for the spatial position of the vehicle body as claimed in claim 6, wherein: the S2 further includes: the RFID reader-writer (3) identifies the label of the transport trolley and the type of the coating workpiece, and associates the identification data of the RFID reader-writer (3) with the scanning data.
8. The intelligent detection method for the spatial position of the vehicle body as claimed in claim 7, wherein: the S2 further includes: the transportation line carrying transportation trolley advances at a constant speed, m proximity switches (22) are sequentially triggered, when one proximity switch (22) is triggered, a door frame type photoelectric scanner (21) scans once and generates a group of scanning data, the triggering conditions of the m proximity switches (22) are represented by a group of binary data, wherein '1' represents that the proximity switch (22) is triggered, and '0' represents that the proximity switch (22) is not triggered, and the binary data are respectively correlated with the identification data and the scanning data of the RFID reader-writer (3).
9. The intelligent detection method for the spatial position of the vehicle body as claimed in claim 8, wherein: the S3 further includes: if the coating workpiece does not have the conditions of wrong hanging tool, wrong column hole position, wrong product or improper product, the conveying line carries the conveying trolley to continue to advance;
if the coating workpiece has the conditions of wrong hanging tool, wrong column hole position, wrong product or incomplete product, alarming and stopping the section of conveying chain, obtaining the model of the coating workpiece and the label of a transport trolley carrying the coating workpiece according to the RFID reader-writer (3), obtaining the position of the coating workpiece in the vertical direction according to the triggering conditions of n laser correlation photoelectric switches (21-2), obtaining the position of the coating workpiece in the horizontal direction according to the triggering conditions of m proximity switches (22), and further obtaining the specific position of the coating workpiece on the transport trolley.
10. The application of the intelligent detection device for the spatial position of the vehicle body is characterized in that the intelligent detection device for the spatial position of the vehicle body is applied to the coating process of the automobile bumper according to the claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444098.5A CN111561869B (en) | 2020-05-22 | 2020-05-22 | Intelligent detection device and method for vehicle body space position and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010444098.5A CN111561869B (en) | 2020-05-22 | 2020-05-22 | Intelligent detection device and method for vehicle body space position and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111561869A true CN111561869A (en) | 2020-08-21 |
| CN111561869B CN111561869B (en) | 2021-11-23 |
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