CN113176580B - Online detection system and method for vehicle production line following positioning tool - Google Patents
Online detection system and method for vehicle production line following positioning tool Download PDFInfo
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- CN113176580B CN113176580B CN202110538058.1A CN202110538058A CN113176580B CN 113176580 B CN113176580 B CN 113176580B CN 202110538058 A CN202110538058 A CN 202110538058A CN 113176580 B CN113176580 B CN 113176580B
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- laser displacement
- displacement sensor
- positioning tool
- controller
- production line
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- 238000001514 detection method Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims abstract description 60
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000003203 everyday effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/42—Simultaneous measurement of distance and other co-ordinates
-
- 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
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses an on-line detection system and method for a vehicle production line follow-up positioning tool, wherein the on-line detection system for the vehicle production line follow-up positioning tool comprises at least one laser displacement sensor for collecting distance information between a main positioning pin and a datum point of the positioning tool, a digital signal converter, a robot capable of at least three-axis movement, a controller and a display, the laser displacement sensor is arranged on a mechanical arm of the robot, the laser displacement sensor is connected with the digital signal converter, and a motor of the robot and the display are connected with the controller. The on-line detection system for the following positioning tool of the automobile production line has the advantages of realizing the effect of on-line accurate detection, thereby realizing the effects of improving the quality of products and saving the labor cost and the production cost.
Description
Technical Field
The invention relates to the technical field of automobile production line detection, in particular to an on-line detection system of a follow-up positioning tool of an automobile production line.
Background
At present, the on-line follow-up positioning tool and other positioning tools are detected off line or after stopping off line, the on-line follow-up positioning tool is measured on an off-line positioning tool measuring table after being prized down every day, and the vehicle body measurement is not carried out; the off-line positioning tool measuring table mainly assists in measuring of positioning tools, a standard base is provided for the following positioning tools of different vehicle types, and the off-line following positioning tools are assisted in carrying out measuring equipment. Because off-line positioning tool measurement cannot be performed, a real-time state table cannot be fed back on line, whole-process monitoring is lacked, and after a problem is found, the tracing time is longer, and the workload is larger.
Disclosure of Invention
The invention aims to provide an on-line detection system for a following positioning tool of an automobile production line, which has the advantages that: the effect of online accurate detection is realized, so that the effects of improving the product quality and saving the labor cost and the production cost are realized.
The invention discloses an on-line detection system of a vehicle production line follow-up positioning tool, which comprises at least one laser displacement sensor for collecting distance information between a main positioning pin and a reference point of the positioning tool, a digital signal converter, a robot capable of at least three-axis movement, a controller and a display, wherein the laser displacement sensor is arranged on a mechanical arm of the robot, the laser displacement sensor is connected with the digital signal converter, and the digital signal converter, a motor of the robot and the display are all connected with the controller.
The on-line detection system of the following positioning tool of the automobile production line can also be as follows:
when the number of the laser displacement sensors is two, the optical axis directions of the two laser displacement sensors are parallel or crossed.
The optical axis directions of the two laser displacement sensors are horizontal directions.
One of the laser displacement sensors has an optical axis direction perpendicular to the horizontal direction, and the other laser displacement sensor has an optical axis direction in the horizontal direction.
The intelligent control system further comprises an alarm, and the alarm is connected with the controller.
The wireless transmission module is connected with the controller.
The on-line detection system for the following positioning tool of the automobile production line has the advantages compared with the prior art that: through practical application, each production line can save two measurement personnel every day, thereby saving personnel cost 30 ten thousand yuan each year, and improving detection precision. As the on-line detection is implemented without stopping the line detection, the time of stopping the line can be reduced by 50 hours all the year round, and the line stopping cost is reduced by 200 ten thousand yuan. The original positioning tool on each skid 8 is inspected every day, so that the problem escape is avoided, and the product quality is improved.
The invention also provides an on-line detection method of the following positioning tool, which adopts the on-line detection system of the following positioning tool of the automobile production line, and comprises the following steps:
the robot is arranged at any station adjacent to the production line; selecting a motion path of the robot which is matched with a vehicle type positioning tool to be detected on an operation interface of a display; after a skid on a production line is displaced to a station adjacent to the robot, the controller controls the robot to carry the laser displacement sensor to displace to a detection working position, a laser receiving end of the laser displacement sensor at the detection working position is a datum point, and a laser transmitting end of the laser displacement sensor is opposite to a main locating pin of a locating tool; the controller controls the laser displacement sensor to emit laser, part of scattered light returns to a laser receiving end of the laser displacement sensor and converts the laser receiving end into corresponding electric signals, the digital signal converter converts analog signals output by the laser displacement sensor into digital signals and transmits the digital signals to the controller, if the calculated distance of the controller is equal to the set distance, the coordinates of the main locating pin are qualified, the display displays qualified information, if the calculated distance of the controller is not equal to the set distance, the coordinates of the main locating pin are unqualified, and the display displays unqualified information; after the detection is completed, the controller controls the robot to return to the initial state and waits for the detection of the next main locating pin.
Compared with the prior art, the on-line detection method for the follow-up positioning tool has the advantages that: by adopting the on-line detection system for the following positioning tool of the automobile production line, the effect of on-line accurate detection is realized, so that the effects of improving the quality of products and saving the labor cost and the production cost are realized.
Drawings
Fig. 1 is a schematic circuit connection diagram of an on-line detection system of a vehicle production line follow-up positioning tool.
Fig. 2 is a schematic diagram of a detection operation of an on-line detection system of a vehicle production line follow-up positioning tool.
Fig. 3 is a schematic diagram of a three-dimensional structure of a robot of an on-line detection system of a vehicle production line following positioning tool.
Description of the drawings
1. A laser displacement sensor; 2. a digital signal converter; 3. a robot; 31. a first skid; 32. lifting and rotating parts; 33. a second skid; 4. a controller; 5. a display; 6. an alarm; 7. a wireless transmission module; 8. a skid; 9. and a main locating pin.
Detailed Description
The following describes in further detail an on-line detection system for a vehicle production line pallet fixture according to the present invention with reference to fig. 1 to 3 of the accompanying drawings.
The invention relates to an on-line detection system of a vehicle production line follow-up positioning tool, referring to figures 1 to 3, which comprises at least one laser displacement sensor 1 for collecting distance information between a main positioning pin 9 and a reference point of the positioning tool, a digital signal converter 2, a robot 3 capable of at least three-axis movement, a controller 4 and a display 5. The laser displacement sensor 1, the digital signal converter 2, the robot 3, the controller 4 and the display 5 may be integrated together, for example, may be integrated on the robot 3. Of course, the digital signal converter 2, the controller 4 and the display 5 may also be integrated on a central console of the production line, and a person skilled in the art may select the integration mode according to actual needs.
The digital signal converter 2, the motor of the robot 3 and the display 5 are all connected with the controller 4.
The laser displacement sensor 1 is arranged on the mechanical arm of the robot 3, so that the laser displacement sensor 1 can be displaced to a positioning tool on a skid 8 on a production line for distance data acquisition, and the robot 3 can preferably move along four axes, so that the detection of the positioning tools with different structures of various vehicle types is ensured. For example, the robot 3 includes a first sliding table 31 that slides horizontally, a lifting and rotating portion 32, and a second sliding table 33 that slides horizontally, the lifting and rotating portion 32 is vertically provided on the first sliding table 31, the second sliding table 33 is provided on the lifting and rotating portion 32, a sliding direction of the first sliding table 31 is perpendicular to a sliding direction of the second sliding table 33, the lifting and rotating portion 32 is vertically liftable and horizontally rotatable, and the laser displacement sensor 1 is provided on the second sliding table 33.
The laser displacement sensor 1 comprises a laser emission end and a laser receiving end, the laser displacement sensor 1 is connected with the digital signal converter 2, the laser displacement sensor 1 emits laser towards the detected part, part of scattered light returns to the laser receiving end of the laser displacement sensor 1 and is converted into corresponding electric signals, the digital signal converter 2 converts analog signals output by the laser displacement sensor 1 into digital signals and then transmits the digital signals to the controller 4, the robot 3 receives the control of the controller 4, and the display 5 displays detection information. According to the on-line detection system for the vehicle production line follow-up positioning tool, two measuring staff per day can be saved in each production line through practical application, so that the cost of the staff is saved by 30 ten thousand yuan per year, and the detection precision is improved. As the on-line detection is implemented without stopping the line detection, the time of stopping the line can be reduced by 50 hours all the year round, and the line stopping cost is reduced by 200 ten thousand yuan. The original positioning tool on each skid 8 is inspected every day, so that the problem escape is avoided, and the product quality is improved.
The invention relates to an on-line detection system for a vehicle production line following positioning tool, referring to the relevant diagrams of fig. 1 to 3, and the on-line detection system can also be based on the previous technical scheme: when there are two laser displacement sensors 1, the optical axis directions of the two laser displacement sensors 1 are parallel or intersect. For example, the two laser displacement sensors 1 are arranged vertically, and when the optical axis directions of the two laser displacement sensors 1 are parallel to each other, the two laser displacement sensors 1 acquire distance information of the upper and lower portions of the same member to be detected. For example, when the optical axis directions of the two laser displacement sensors 1 intersect, the two laser displacement sensors 1 collect distance information on both surfaces of the same side member. Of course, the detection method is not limited to the above embodiment, and two laser displacement sensors 1 may collect two components to be detected, and one skilled in the art may select the detection method according to actual needs.
The invention relates to an on-line detection system for a vehicle production line following positioning tool, referring to the relevant diagrams of fig. 1 to 3, and the on-line detection system can also be based on the previous technical scheme: the optical axis directions of the two laser displacement sensors 1 are both horizontal directions, or the optical axis direction of one laser displacement sensor 1 is perpendicular to the horizontal direction, and the optical axis direction of the other laser displacement sensor 1 is horizontal direction, so that the detection of the parts on the side at different positions can be satisfied.
The invention relates to an on-line detection system for a vehicle production line following positioning tool, referring to the relevant diagrams of fig. 1 to 3, and the on-line detection system can also be based on the previous technical scheme: the system also comprises an alarm 6, wherein the alarm 6 is connected with the controller 4, and the alarm 6 works when the system is abnormal or the positioning tool is detected to be unqualified. For example, the alarm 6 is any one of a light alarm, an audible alarm, and an audible and visual alarm.
The invention relates to an on-line detection system for a vehicle production line following positioning tool, referring to the relevant diagrams of fig. 1 to 3, and the on-line detection system can also be based on the previous technical scheme: the wireless transmission module 7 is also included, and the wireless transmission module 7 is connected with the controller 4. For example, the wireless transmission module 7 is any one of a bluetooth module, a Sim card module and a WiFi module, so as to realize communication of detection information with a mobile phone or other mobile terminals, thereby grasping detection conditions in real time.
The invention also provides an on-line detection method of the following positioning tool, which adopts the on-line detection system of the following positioning tool of the automobile production line, and comprises the following steps:
the robot 3 is arranged at any one of the stations adjacent to the production line.
And selecting a motion path of the robot 3 matched with the positioning tool of the vehicle type to be detected on an operation interface of the display 5.
After the skid 8 on the production line is shifted to a station adjacent to the robot 3 to stop, the controller 4 controls the robot 3 to carry the laser displacement sensor 1 to shift to a detection working position, a laser receiving end of the laser displacement sensor 1 at the detection working position is a datum point, and a laser transmitting end of the laser displacement sensor 1 is opposite to a main locating pin 9 of a locating tool.
The controller 4 controls the laser displacement sensor 1 to emit laser, part of scattered light returns to the laser receiving end of the laser displacement sensor 1 and converts the laser receiving end into corresponding electric signals, the digital signal converter 2 converts analog signals output by the laser displacement sensor 1 into digital signals and transmits the digital signals to the controller 4, if the calculated distance of the controller 4 is equal to the set distance, the coordinates of the main positioning pin 9 are qualified, the display 5 displays qualified information, if the calculated distance of the controller 4 is unequal to the set distance, the coordinates of the main positioning pin 9 are unqualified, and the display 5 displays unqualified information.
After the detection is completed, the controller 4 controls the robot 3 to return to the initial state, waiting for the detection of the next main positioning pin 9.
According to the online detection method of the follow-up positioning tool, the online accurate detection effect is achieved by adopting the online detection system of the follow-up positioning tool of the automobile production line, so that the effects of improving the product quality and saving the labor cost and the production cost are achieved.
The foregoing description of the embodiments of the present invention should not be taken as limiting the scope of the invention, but rather should be construed in view of the following detailed description.
Claims (6)
1. The on-line detection system for the following positioning tool of the automobile production line is characterized by comprising at least one laser displacement sensor (1) for collecting distance information between a main positioning pin and a reference point of the positioning tool, a digital signal converter (2), a robot (3) capable of at least three-axis movement, a controller (4) and a display (5), wherein the laser displacement sensor (1) is arranged on a mechanical arm of the robot (3), the laser displacement sensor (1) is connected with the digital signal converter (2), a motor of the robot (3) and the display (5) are connected with the controller (4),
the robot (3) is arranged at any station adjacent to the production line;
selecting a motion path of the robot (3) matched with a vehicle type positioning tool to be detected on an operation interface of a display (5);
after a skid on a production line is displaced to a station adjacent to the robot (3) to stop, the controller (4) controls the robot (3) to carry the laser displacement sensor (1) to displace to a detection working position, a laser receiving end of the laser displacement sensor (1) at the detection working position is a datum point, and a laser transmitting end of the laser displacement sensor (1) is opposite to a main locating pin of a locating tool;
the controller (4) controls the laser displacement sensor (1) to emit laser, part of scattered light returns to a laser receiving end of the laser displacement sensor (1) and converts the laser displacement sensor into corresponding electric signals, the digital signal converter (2) converts analog signals output by the laser displacement sensor (1) into digital signals and transmits the digital signals to the controller (4), if the calculated distance of the controller (4) is equal to the set distance, the coordinates of the main locating pin are qualified, the display (5) displays qualified information, and if the calculated distance of the controller (4) is unequal to the set distance, the coordinates of the main locating pin are unqualified, and the display (5) displays unqualified information;
after the detection is completed, the controller (4) controls the robot (3) to return to an initial state, and waits for the detection of the next main locating pin.
2. The on-line detection system for the vehicle production line follow-up positioning tool according to claim 1, wherein when the number of the laser displacement sensors (1) is two, the optical axis directions of the two laser displacement sensors (1) are parallel or intersected.
3. The on-line detection system for the vehicle production line follow-up positioning tool according to claim 2, wherein the optical axis directions of the two laser displacement sensors (1) are both horizontal directions.
4. The on-line detection system for the vehicle production line follow-up positioning tool according to claim 2, wherein the optical axis direction of one laser displacement sensor (1) is perpendicular to the horizontal direction, and the optical axis direction of the other laser displacement sensor (1) is the horizontal direction.
5. The on-line detection system of the vehicle production line follow-up positioning tool according to claim 1, further comprising an alarm, wherein the alarm is connected with the controller (4).
6. The on-line detection system for the vehicle production line following positioning tool according to claim 1, further comprising a wireless transmission module, wherein the wireless transmission module is connected with the controller (4).
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| CN202110538058.1A CN113176580B (en) | 2021-05-18 | 2021-05-18 | Online detection system and method for vehicle production line following positioning tool |
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| CN202110538058.1A CN113176580B (en) | 2021-05-18 | 2021-05-18 | Online detection system and method for vehicle production line following positioning tool |
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| CN113176580B true CN113176580B (en) | 2024-03-15 |
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| DE10347553A1 (en) * | 2003-10-14 | 2005-05-25 | Adam Opel Ag | Assembly of automobile bodywork parts, according to the vehicle design, positions the parts accurately on both sides of the chassis and aligned with each other on each side |
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| CN113176580A (en) | 2021-07-27 |
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