Transportation carrier detection device, system and method and storage medium

Abstract

The invention provides a transport carrier detection device, system and method and a storage medium, the transport carrier detection device comprises a lifting assembly and a detection assembly, the lifting assembly is connected with the detection assembly and is used for driving the detection assembly to lift, and the detection assembly is used for detecting an empty transport carrier at a detection station; the detection assembly comprises a detection tool, a detection hole is formed in the detection tool, the detection tool is provided with a detection component, the detection hole is used for allowing a positioning pin in the transport carrier to stretch in, and the detection component is used for detecting the position deviation of the positioning pin relative to the detection hole in the first direction and the second direction. According to the embodiment of the invention, the detection of the precision of the positioning pin in the transport carrier can be automatically realized, manual detection is not needed, and the detection efficiency of the transport carrier can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, and in particular to a transport vehicle testing device, system, method, and storage medium. Background Technology

[0002] In automobile manufacturing workshops, body transport vehicles are typically used to transport car bodies between workstations within various process lines.

[0003] Precision deviations in vehicle body transporters can affect their fit with the vehicle body, thereby impacting production cycle time, production quality, and production efficiency. Therefore, it is necessary to inspect the precision of vehicle body transporters.

[0004] In related technologies, the vehicle body is usually manually guided to a specific location for manual inspection. During the inspection, tools such as tape measures, vernier calipers, and inspection fixtures are typically used, which results in low inspection efficiency. Summary of the Invention

[0005] In view of this, this application aims to provide a transport vehicle detection device, system, method, and storage medium, which at least solves the technical problems in the prior art.

[0006] According to a first aspect of this application, a transport vehicle detection device is provided, including a lifting assembly and a detection assembly, wherein the lifting assembly is connected to the detection assembly and is used to drive the detection assembly to lift and lower, and the detection assembly is used to detect an empty transport vehicle at the detection station; The detection assembly includes a gauge with a detection hole and a detection component. The detection hole is for a positioning pin in the transport vehicle to extend into, and the detection component is for detecting the positional deviation of the positioning pin relative to the detection hole along a first direction and a second direction. The first direction and the second direction are perpendicular to each other, and both are perpendicular to the height direction of the transport vehicle detection device.

[0007] Optionally, the transport vehicle detection device further includes a reader for reading the identification information stored in the code body of the transport vehicle; The transport vehicle detection device further includes a control module, which is electrically connected to the detection component and the reader. The control module is used to acquire the identification information and the position deviation, determine the detection result based on the position deviation, and store the identification information and the detection result corresponding to the identification information.

[0008] Optionally, the detection component has a avoidance position for avoiding the transport vehicle and a detection position for detecting the transport vehicle; The transport vehicle detection device further includes a fixed frame, and the detection component further includes a slide, the inspection fixture is connected to the slide, and the slide is slidably connected to the fixed frame; The fixed frame is equipped with a lifting stroke detection mechanism, which includes a connecting wire, a drum, and an absolute encoder. The connecting wire is wound on the drum and connected to the slide, and the absolute encoder is connected to the drum.

[0009] Optionally, the mounting bracket is provided with a first position detector and a second position detector. The first position detector is used to detect whether the detection component is in the detection position, and the second position detector is used to detect whether the detection component is in the avoidance position.

[0010] Optionally, the lifting assembly includes a rotary drive, a reel, and a belt. One end of the belt is wound around the reel, and the other end is connected to the carriage. The rotary drive is connected to the reel and is used to drive the reel to rotate, so as to wind up or release the belt, thereby raising or lowering the carriage.

[0011] Optionally, the transport vehicle detection device further includes a positioning detector, which is used to detect whether the transport vehicle has been transported to the detection station, and sends a positioning signal to the control module when the transport vehicle is detected to be transported to the detection station. After receiving the positioning signal, the control module sends a first control signal to the lifting assembly to control the operation of the lifting assembly so that the detection assembly descends to the detection position.

[0012] According to a second aspect of this application, a transport vehicle inspection system is provided, including an inspection area conveying device, a buffer area conveying device, a maintenance area carrying device, and a transport vehicle inspection device as described above; The inspection area conveying device is located below the inspection component in the transport vehicle inspection device. The buffer area conveying device is used to receive the transport vehicle to be inspected that has not yet started transporting the vehicle body from the line conveying device, and to convey the transport vehicle to be inspected to the inspection area conveying device. The inspection component is used to inspect the transport vehicle to be inspected at the inspection station on the inspection area conveying device. The inspection area conveying device is used to convey the inspected transport vehicle to the buffer area conveying device. The buffer area conveying device is also used to convey the qualified transport vehicle to the line conveying device, or to convey the unqualified transport vehicle to the maintenance area carrying device.

[0013] Optionally, the buffer conveying device is rotatable and has a first position and a second position; In the first position, both ends of the buffer area conveying device are respectively connected to the line conveying device and the detection area conveying device. In the second position, one end of the buffer area conveying device is connected to the maintenance area carrying device.

[0014] According to a third aspect of this application, a method for detecting a transport vehicle is also provided, applied to the transport vehicle detection system described above, the method comprising: Receive the detection completion signal and the detection result of the transport vehicle, and control the operation of the detection area conveying device to transport the detected transport vehicle to the buffer area conveying device; If the inspection result of the transport vehicle is qualified, the buffer area conveying device is controlled to operate, so as to transport the inspected transport vehicle to the line conveying device; If the inspection result of the transport vehicle is unqualified, the buffer area conveying device is controlled to operate, so as to transport the inspected transport vehicle to the maintenance area carrying device.

[0015] According to a fourth aspect of this application, a readable storage medium is also provided, on which a computer program is stored, which, when executed by a processor, implements the transport vehicle detection method as described above.

[0016] In this embodiment, the lifting assembly can drive the detection assembly to rise and fall, allowing the positioning pin in the transport vehicle to extend into or exit the detection hole. The detection component in the detection assembly can detect the positional deviation of the positioning pin relative to the detection hole along the first and second directions, thereby automatically detecting the accuracy of the positioning pin in the transport vehicle without manual inspection. This improves the detection efficiency of the transport vehicle and ensures high accuracy, avoiding missed or incorrect detections caused by manual inspection. Furthermore, inspecting an empty transport vehicle, i.e., inspecting the transport vehicle before transporting the vehicle body, prevents transport vehicles with large accuracy deviations from continuing to transport the vehicle body, thus avoiding scratches, punctures, and other problems on the vehicle body, avoiding line stoppage risks, improving production line operating efficiency, and preventing production cost losses. Additionally, eliminating the need for manual inspection effectively reduces the work of manually guiding the transport vehicle to specific positions and performing manual inspections, reducing human intervention, lowering labor costs, and reducing the workload of workers.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the transport vehicle detection device provided in the embodiments of this application; Figure 2 This is a partial structural diagram of the transport vehicle detection device provided in the embodiments of this application. Figure 1 ; Figure 3 This is a partial structural diagram of the transport vehicle detection device provided in the embodiments of this application. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the detection component in the transport vehicle detection device provided in the embodiments of this application, which is in the avoidance position and the detection position; Figure 5 This is a three-dimensional structural diagram of the detection component and the transport vehicle in the transport vehicle detection device provided in the embodiments of this application; Figure 6 This is a side view structural diagram of the detection component and the transport vehicle in the transport vehicle detection device provided in the embodiments of this application; Figure 7 This is a flowchart of the steps of a transportation vehicle detection method provided in an embodiment of this application.

[0019] Figure label: 10-Transport vehicle detection device, 11-Lifting assembly, 111-Rotating drive, 112-Reel, 113-Belt, 12-Detection assembly, 121-Inspection fixture, 122-Slide carriage, 1221-First support, 13-Fixed frame, 131-Base, 132-Column, 133-Top frame, 134-Guide wheel, 14-Reader, 15-First position detector, 16-Second position detector, 17-Belt detector, 18-Electrical control assembly, 181-Programmable logic controller; 20-Transport vehicle, 21-Vehicle frame, 22-Positioning pin, 23-Vehicle number plate; C1 - Detection position, C2 - Avoidance position. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to enable readers to better understand this application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.

[0021] Due to factors such as significant vibrations during vehicle operation and long-term use, deviations in the precision of vehicle body transporters can occur. These precision deviations affect the matching between the vehicle body transporter and the vehicle body, thereby impacting production cycle time, production quality, and production efficiency. Therefore, it is necessary to inspect the precision of vehicle body transporters.

[0022] For example, if the pins in the vehicle body transporter have a large precision deviation, the position of the pins in the transporter will deviate significantly from the position of the holes on the vehicle body when the vehicle body is matched with the transporter. This can easily lead to scratches, punctures, and other problems on the lower body of the vehicle body caused by the pins in the transporter, resulting in quality issues such as damage to body parts and increasing the additional costs of body repair or replacement. Furthermore, if a large precision deviation in the pins of the transporter is not detected in time and continues to flow into the production line, it will affect the transfer of vehicle bodies between different process sections of the production line and disrupt the normal operation of subsequent processes, causing a chain reaction of failures and potentially leading to production line shutdowns.

[0023] In related technologies, vehicle transport vehicles are typically manually guided to specific locations for manual inspection. During inspection, tools such as measuring tapes, calipers, and inspection fixtures are commonly used, resulting in low efficiency and high labor intensity for workers. Furthermore, manual inspection is prone to omissions and errors. To address these issues, this application provides a transport vehicle inspection device, system, method, and storage medium. The transport vehicle inspection device, system, method, and storage medium mentioned above are described in detail below.

[0024] Reference Figure 1 and Figure 5This application provides a transport vehicle detection device 10, including a lifting assembly 11 and a detection assembly 12. The lifting assembly 11 is connected to the detection assembly 12 and is used to drive the detection assembly 12 to rise and fall. The detection assembly 12 is used to detect an empty transport vehicle 20 in the detection station. The detection assembly 12 includes a gauge 121 with a detection hole and a detection component. The detection hole is used for a positioning pin 22 in the transport vehicle 20 to extend into. The detection component is used to detect the positional deviation of the positioning pin 22 relative to the detection hole along a first direction and a second direction. The first direction and the second direction are perpendicular to each other and both are perpendicular to the height direction of the transport vehicle detection device 10.

[0025] The transport vehicle inspection device 10 is used for online inspection of the transport vehicle 20, which is used to transport the vehicle body. Before transporting the vehicle body, the empty transport vehicle 20 must be transported to the inspection station, where it is inspected by the inspection fixture 121. The transport vehicle 20 can be transported to the inspection station via a roller bed. The inspection station is located below the inspection assembly 12, and the transport vehicle 20 is positioned below the inspection assembly 12, with the position of the locating pin 22 in the transport vehicle 20 corresponding to the position of the inspection fixture 121. The locating pin 22 in the transport vehicle 20 is connected to the vehicle frame 21.

[0026] When the lifting assembly 11 moves, it drives the detection assembly 12 to rise and fall, and the detection assembly 12 rises and falls along the height direction of the transport vehicle detection device 10. The lifting assembly 11 can be a belt-wound lifting assembly, a screw lifting assembly, a cylinder lifting assembly, etc. The first direction is consistent with the length direction of the transport vehicle 20 at the detection station, and the first direction can be referred to as... Figure 1 The direction indicated by arrow A in the middle, the second direction, is consistent with the width direction of the transport vehicle 20 at the inspection station. The second direction can be referred to... Figure 1 The direction indicated by arrow B in the middle.

[0027] The transport vehicle 20 includes a plurality of positioning pins 22, and the transport vehicle detection device 10 includes a detection assembly 12, wherein the number of gauges 121 in the detection assembly 12 is equal to the number of positioning pins 22 in the transport vehicle 20. As an example, the transport vehicle 20 includes four positioning pins 22, and the detection assembly 12 includes four gauges 121, which are respectively used to detect the positional deviation of the four positioning pins 22 along a first direction and a second direction.

[0028] The shape of the detection hole matches the cross-sectional shape of the positioning pin 22. For example, if the cross-sectional shape of the positioning pin 22 is circular, the corresponding detection hole is a circular hole. The detection hole can be a through hole. The positioning pin 22 in the transport vehicle 20 is used to mate with the positioning holes on the vehicle body. The positions of the multiple detection holes are arranged according to the positions of the multiple positioning holes. The central axis of the detection hole coincides completely with the central axis of the corresponding positioning hole. If the positional deviation of the positioning pin 22 relative to the detection hole along the first and second directions is large, it means that when the transport vehicle 20 mates with the vehicle body, the positional deviation of the positioning pin 22 relative to the positioning hole on the vehicle body along the first and second directions is large. The diameter of the detection hole is larger than the diameter of the positioning pin 22, so that even if the accuracy of the positioning pin 22 has a large deviation, it can still be ensured that the positioning pin 22 can extend into the detection hole.

[0029] The positional deviation of the locating pin 22 relative to the detection hole along the first direction refers to the distance between the central axis of the locating pin 22 and the central axis of the detection hole along the first direction. The positional deviation of the locating pin 22 relative to the detection hole along the second direction refers to the distance between the central axis of the locating pin 22 and the central axis of the detection hole along the second direction.

[0030] As an example, the detection component may include a first distance sensor, a second distance sensor, and a microprocessor. The first distance sensor is used to detect a first distance along a first direction between the outer wall of the positioning pin 22 and the inner wall of the detection hole. The second distance sensor is used to detect a second distance along a second direction between the outer wall of the positioning pin 22 and the inner wall of the detection hole. The microprocessor calculates the difference between the first distance and a first preset standard distance, and uses the absolute value of the difference as the positional deviation of the positioning pin 22 relative to the detection hole along the first direction. It also calculates the difference between the second distance and a second preset standard distance, and uses the absolute value of the difference as the positional deviation of the positioning pin 22 relative to the detection hole along the second direction. The first preset standard distance is the distance along the first direction between the inner wall of the detection hole and the outer wall of the positioning pin 22 with no deviation in precision. The second preset standard distance is the distance along the second direction between the inner wall of the detection hole and the outer wall of the positioning pin 22 with no deviation in precision.

[0031] As another example, the detection component may include a first elastic probe extending in a first direction disposed in the detection hole, a first displacement sensor connected to the first elastic probe, a second elastic probe extending in a second direction disposed in the detection hole, and a second displacement sensor connected to the second elastic probe. When the positioning pin 22 with no accuracy deviation is inserted into the detection hole, the first elastic probe and the second elastic probe will not be compressed and will not generate displacement. When the positioning pin 22 with accuracy deviation is inserted into the detection hole, the first elastic probe and / or the second elastic probe will be compressed and will generate displacement. The compression amount of the first elastic probe and the second elastic probe are respectively used as the positional deviation of the positioning pin 22 relative to the detection hole in the first direction and the second direction.

[0032] The detection component can also be used to detect the positional deviation of the positioning pin 22 relative to the detection hole along the height direction of the transport vehicle detection device 10. As an example, the detection component also includes a third distance sensor, which is used to detect a third distance between the top surface of the positioning pin 22 and the top of the detection hole along the height direction of the transport vehicle detection device 10. The microprocessor calculates the difference between the third distance and a third preset standard distance, and takes the absolute value of the difference as the positional deviation of the positioning pin 22 relative to the detection hole along the height direction of the transport vehicle detection device 10. The third preset standard distance is the distance between the top of the detection hole and the top surface of the positioning pin 22 with no accuracy deviation along the height direction of the transport vehicle detection device 10.

[0033] In this embodiment, the lifting component 11 drives the detection component 12 to rise and fall, thereby allowing the positioning pin 22 in the transport carrier 20 to extend into or exit the detection hole. The detection component in the detection component 12 can detect the positional deviation of the positioning pin 22 relative to the detection hole along the first and second directions, thus automatically detecting the accuracy of the positioning pin 22 in the transport carrier 20 without manual inspection. This improves the inspection efficiency of the transport carrier 20 and ensures high accuracy, avoiding missed or incorrect detections caused by manual inspection. Furthermore, inspecting the empty transport carrier 20, i.e., inspecting the transport carrier 20 before transporting the vehicle body, prevents transport carriers with large accuracy deviations from continuing to transport the vehicle body, thus avoiding scratches, punctures, and other problems on the vehicle body, avoiding the risk of line stoppage, improving production line operating efficiency, and preventing production cost losses. Additionally, eliminating the need for manual inspection effectively reduces the work of manually guiding the transport carrier 20 to specific positions and performing manual inspections, reducing human intervention, lowering labor costs, and reducing the workload of workers.

[0034] In some embodiments, refer to Figure 6 The transport vehicle detection device 10 also includes a reader 14, which is used to read the identification information stored in the code carrier in the transport vehicle 20; the transport vehicle detection device also includes a control module, which is electrically connected to the detection component and the reader 14. The control module is used to acquire the identification information and position deviation, determine the detection result based on the position deviation, and store the identification information and the detection result corresponding to the identification information.

[0035] The transport vehicle 20 also includes a vehicle number plate 23, on which the number of the transport vehicle 20 is engraved. The identification information can be the number of the transport vehicle 20, which is consistent with the number engraved on the vehicle number plate 23. The code carrier can be an RFID (Radio Frequency Identification) code carrier, and correspondingly, the reader 14 is an RFID reader.

[0036] The transport vehicle detection device 10 also includes an electrical control component 18, which includes a control module. The control module may include a programmable logic controller (PLC) 181. After receiving a position signal from the position detector, the control module controls the reader 14 to read the identification information stored in the code carrier. The electrical control component 18 may also include relays, indicator lights, buzzers, switches, etc.

[0037] The positional deviation of the detection positioning pin 22 relative to the detection hole along the first direction and the positional deviation along the second direction are compared with the first preset deviation and the second preset deviation, respectively. If the positional deviation of the detection positioning pin 22 relative to the detection hole along the first direction is less than or equal to the first preset tolerance, and the positional deviation of the detection positioning pin 22 relative to the detection hole along the second direction is less than or equal to the second preset tolerance, then the detection result is determined to be qualified; otherwise, the detection result is determined to be unqualified.

[0038] The first preset tolerance is the amount of allowable deviation of the positioning pin 22 in the first direction, and the second preset tolerance is the amount of allowable deviation of the positioning pin 22 in the second direction. The specific values ​​of the first preset tolerance and the second preset tolerance can be set according to actual needs. The second preset tolerance can be the same as or different from the first preset tolerance.

[0039] After the control module determines the test results, it can upload the identification information and the corresponding test results to a remote database for storage. In this embodiment, the identification information and test results of the transport vehicle 20 can be recorded and stored, thereby enabling the tracing of the test records of the transport vehicle 20, facilitating the management of the transport vehicle 20, and enabling the timely detection of transport vehicles 20 that have repeatedly failed tests.

[0040] In some embodiments, refer to Figure 1 , Figure 3 and Figure 4The detection component 12 has a avoidance position C2 for avoiding the transport vehicle 20 and a detection position C1 for detecting the transport vehicle 20; the transport vehicle detection device 10 also includes a fixed frame 13, and the detection component 12 also includes a slide 122. The inspection fixture 121 is connected to the slide 122, and the slide 122 is slidably connected to the fixed frame 13; the fixed frame 13 is provided with a lifting stroke detection mechanism, which includes a connecting wire, a drum and an absolute encoder. The connecting wire is wound on the drum and connected to the slide, and the absolute encoder is connected to the drum.

[0041] The avoidance position C2 is higher than the detection position C1. The detection position of the detection component 12 can be referenced... Figure 1 and Figure 4 The avoidance position of the detection component 12, as shown in C1, can be referenced. Figure 1 and Figure 4 C2 is shown in the diagram. It should be noted that the transport vehicle detection device actually only has one detection component 12. Figure 1 The two detection components 12 shown in the diagram, located at detection position C1 and avoidance position C2 respectively, are only used to illustrate the different positions of the detection components 12.

[0042] The fixed frame 13 includes a base 131, a column 132, and a top frame 133. The column 132 is connected between the base 131 and the top frame 133. There can be four columns 132. The electrical control assembly 18 is mounted on the fixed frame 13. The carriage 122 includes two first supports 1221 and two second supports. The first supports 1221 extend along a first direction, and two gauges 121 are respectively provided at both ends of the first supports 1221. The second supports extend along a second direction, and each second support is connected to one of the two first supports 1221. The two first supports 1221 and the two second supports are connected to form a single carriage 122.

[0043] The connecting wire is wound on a drum and connected to the second bracket in the carriage 122. The connecting wire can be steel wire. A return spring is provided inside the drum to provide a rewinding force during the ascent of the carriage 122 to wind up the connecting wire. When the carriage 122 rises or falls, the end of the connecting wire connected to the carriage 122 rises or falls accordingly, thereby winding the connecting wire onto or pulling it off the drum. During this process, the drum rotates accordingly, and the rotation of the drum drives the absolute encoder to rotate synchronously. The absolute encoder is electrically connected to the control module. Based on the reading of the absolute encoder, the control module can accurately determine the lifting stroke of the end of the connecting wire connected to the carriage 122, thereby accurately determining the lifting stroke of the detection component 12 and precisely controlling the position of the detection component 12.

[0044] In some embodiments, refer to Figure 1 and Figure 2The mounting bracket 13 is equipped with a first position detector 15 and a second position detector 16. The first position detector 15 is used to detect whether the detection component 12 is in the detection position, and the second position detector 16 is used to detect whether the detection component 12 is in the avoidance position.

[0045] The first position detector 15 and the second position detector 16 can be contact position detectors, such as limit switches, or non-contact position detectors, such as proximity sensors. The first position detector 15 and the second position detector 16 are mounted on the column 132. The first position detector 15 and the second position detector 16 are electrically connected to the control module. When the first position detector 15 detects that the detection component 12 is in the detection position, it sends a first signal to the control module. When the second position detector 16 detects that the detection component 12 is in the avoidance position, it sends a second signal to the control module. The first signal and the second signal can be high-level signals. In this embodiment, the position of the detection component 12 is determined by combining the lifting stroke of the detection component 12 and the position detection of the first position detector 15 and the second position detector 16, enabling precise control of the position of the detection component 12.

[0046] Initially, the detection component 12 is in a clearance position. After the transport vehicle 20 to be inspected is delivered to the inspection station, the lifting component 11 operates, causing the detection component 12 to descend. The detection component 12 descends to a preset value, and the first position detector 15 detects that the detection component 12 is in the clearance position, at which point the lifting component 11 stops operating. After the transport vehicle 20 is inspected, the lifting component 11 operates, causing the detection component 12 to rise. The detection component 12 rises to a preset value, and the second position detector 16 detects that the detection component 12 is in the clearance position, at which point the lifting component 11 stops operating.

[0047] In some embodiments, refer to Figure 1 and Figure 3 The lifting assembly 11 includes a rotary drive 111, a reel 112, and a belt 113. One end of the belt 113 is wound around the reel 112, and the other end is connected to the carriage 122. The rotary drive 111 is connected to the reel 112 and is used to drive the reel 112 to rotate, so as to wind up or release the belt 113, thereby causing the carriage 122 to rise or fall.

[0048] The other end of the belt 113 is specifically connected to the second bracket in the carriage 122. The rotary drive 111 can be a motor. When the rotary drive 111 rotates clockwise, the reel 112 rotates counterclockwise, winding up the belt 113, which pulls the carriage 122 upward. When the rotary drive 111 rotates counterclockwise, the reel 112 rotates clockwise, releasing the belt 113, and the carriage 122 descends under gravity. When the rotary drive 111 rotates clockwise, the rotation direction can be clockwise. The top frame 133 is provided with a guide wheel 134, which supports and guides the belt 113 located above the top frame 133. The transport vehicle detection device 10 may also include a belt detector 17, which is used to detect the tension of the belt 113. In this embodiment, the lifting assembly 11 has a simple structure and low cost.

[0049] In some embodiments, the transport vehicle detection device further includes a positioning detector, which is used to detect whether the transport vehicle 20 has been transported to the detection station, and sends a positioning signal to the control module when the transport vehicle 20 is detected to be transported to the detection station. After receiving the positioning signal, the control module sends a first control signal to the lifting assembly 11 to control the lifting assembly 11 to operate so that the detection assembly 12 descends to the detection position.

[0050] The positioning detector can be a contact position detector, such as a limit switch, or a non-contact position detector, such as a proximity sensor. The positioning signal can be a high-level signal. The first control signal is specifically used to control the rotary drive 111 in the lifting assembly 11 to reverse. After the transport vehicle 20 has completed the detection, the control module sends a second control signal to the lifting assembly 11 to control the operation of the lifting assembly 11, causing the detection assembly 12 to rise to the avoidance position. The second control signal is specifically used to control the rotary drive 111 in the lifting assembly 11 to rotate forward. In this embodiment, it is possible to automatically detect whether the transport vehicle 20 has been transported to the detection station, and automatically start the detection process when the transport vehicle 20 is transported to the detection station, without manual intervention, which helps to improve detection efficiency.

[0051] In the aforementioned transport vehicle detection device, initially, the detection component 12 is in a clearance position. The detection process for the transport vehicle 20 in the aforementioned transport vehicle detection device is as follows: the transport vehicle 20 to be detected, before its transport body has begun to be transported, is conveyed towards the transport vehicle detection device. After being conveyed to the correct position, that is, when the transport vehicle 20 is conveyed to the detection station, the position detector sends a position signal to the control module. The control module receives the position signal and controls the reader 14 to read the identification information stored in the code carrier of the transport vehicle 20, and controls the lifting component 11 to operate, so that the detection component 12 descends to the detection position. The inspection tool 121 in the detection component 12, located in the detection position, detects the positioning pin 22 in the transport vehicle 20. After the detection is completed, the lifting component 11 operates, driving the detection component 12 to rise to the clearance position, so that the detected transport vehicle 20 can be transported back.

[0052] In another embodiment provided in this application, a transport vehicle inspection system is also provided, including an inspection area conveying device, a buffer area conveying device, a maintenance area carrying device, and the transport vehicle inspection device 10 as described above. The inspection area conveying device is located below the inspection component 12 in the transport vehicle inspection device 10. The buffer area conveying device is used to receive the transport vehicle 20 to be inspected from the line conveying device before the vehicle body has started to be transported, and to convey the transport vehicle 20 to be inspected to the inspection area conveying device. The inspection component 12 is used to inspect the transport vehicle 20 to be inspected at the inspection station on the inspection area conveying device. The inspection area conveying device is used to convey the inspected transport vehicle 20 to the buffer area conveying device. The buffer area conveying device is also used to convey the qualified transport vehicle to the line conveying device, or to convey the unqualified transport vehicle to the maintenance area carrying device.

[0053] The conveyor system, inspection area conveyor system, and buffer area conveyor system are all roller beds with their own drive motors. The maintenance area carrying device can be a roller bed without a drive motor, that is, a roller bed without active conveying function. The conveyor system is used to transport the online transport vehicle 20, and when the transport vehicle 20 needs to be inspected, it is transported to the buffer area conveyor system.

[0054] In the aforementioned transport vehicle inspection system, the overall inspection process for transport vehicle 20 is as follows: the line conveyor transports the transport vehicle 20 to be inspected, which is running online but has not yet started transporting its body, to the buffer area conveyor; the buffer area conveyor transports the transport vehicle 20 to be inspected to the inspection area conveyor, and after being transported to its position, the transport vehicle 20 is located on the inspection area conveyor and is in the inspection station; the positioning pin 22 in the transport vehicle 20 is inspected by the inspection tool 121 in the inspection component 12; after the inspection is completed, the inspection area conveyor transports the inspected transport vehicle 20 to the buffer area conveyor, the buffer area conveyor transports the qualified transport vehicles to the line conveyor, and the unqualified transport vehicles to the maintenance area carrier.

[0055] In this embodiment, before the transport vehicle 20 transports the vehicle body, that is, before receiving the vehicle, the transport vehicle 20 is inspected, and the unqualified transport vehicles are transported to the maintenance area bearing device, that is, the unqualified transport vehicles 20 are blocked from flowing into the production line, ensuring that only qualified transport vehicles 20 can flow into the production line normally, thereby ensuring the accuracy of the positioning pins 22 in the transport vehicles 20 used in the production line, ensuring the matching of the transport vehicle 20 and the vehicle body, and ensuring the accurate positioning of the vehicle body.

[0056] In some embodiments, the buffer conveyor is rotatable and has a first position and a second position; in the first position, both ends of the buffer conveyor are respectively connected to the line conveyor and the detection area conveyor, and in the second position, one end of the buffer conveyor is connected to the maintenance area carrier.

[0057] In this configuration, along the first direction, the buffer area conveyor is located between the inspection area conveyor and the main conveyor. The maintenance area carrier can be located on one side of the buffer area conveyor along the second direction. The buffer area conveyor is a rotatable roller bed with its own drive motor. The buffer area conveyor includes a rotary motor for driving the buffer area conveyor to rotate, thereby switching it between a first position and a second position.

[0058] The buffer area conveyor is initially in the first position. When the drive motor in the buffer area conveyor is in the first position and rotating forward, it transports the carrier to be inspected to the inspection area conveyor. When rotating in reverse, it transports the carrier that passes inspection to the main conveyor. When the buffer area conveyor is in the second position and its drive motor is rotating forward, it transports the carrier that fails inspection to the maintenance area carrier.

[0059] In this embodiment, for transport vehicles 20 that fail the inspection, the buffer area conveying device needs to rotate and switch positions. For transport vehicles 20 that pass the inspection, the buffer area conveying device does not need to rotate and switch positions, and can quickly send the inspected transport vehicles 20 back to the line conveying device.

[0060] Reference Figure 7 This document illustrates a flowchart of a method for detecting a transport vehicle according to an embodiment of this application. The method is applied to the transport vehicle detection system provided in the above embodiment and includes: S101 receives the detection completion signal and the detection result of the transport vehicle, and controls the operation of the detection area conveyor to transport the detected transport vehicle to the buffer area conveyor.

[0061] The aforementioned transport vehicle detection system includes a processor and a memory. The memory stores executable instructions, and the processor executes these instructions to implement the transport vehicle detection method. After the transport vehicle 20 completes detection and the detection component 12 rises to the avoidance position, the control module in the transport vehicle detection device sends a detection completion signal and the detection result of the transport vehicle 20 to the processor in the transport vehicle detection system. The detection completion signal can be a high-level signal. Controlling the operation of the detection area conveyor to transport the detected transport vehicle to the buffer area conveyor includes controlling the drive motor in the detection area conveyor to rotate forward to transport the detected transport vehicle to the buffer area conveyor.

[0062] The memory may include random access memory (RAM) or non-volatile memory, such as at least one disk storage device. The processor may be a general-purpose processor, such as a central processing unit (CPU) or a network processor (NP); it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices.

[0063] S102, if the inspection result of the transport vehicle is qualified, control the operation of the buffer area conveyor to transport the inspected transport vehicle to the line conveyor.

[0064] The buffer area conveyor is initially in the first position. Controlling the operation of the buffer area conveyor to transport the inspected transport vehicle to the main conveyor includes: controlling the drive motor in the buffer area conveyor to reverse so as to transport the qualified transport vehicle to the main conveyor.

[0065] S103, if the inspection result of the transport vehicle is unqualified, control the operation of the buffer area conveyor to transport the inspected transport vehicle to the maintenance area bearing device.

[0066] The operation of the buffer area conveying device to transport the inspected transport vehicle to the maintenance area carrying device includes: controlling the operation of the rotary motor in the buffer area conveying device to switch the buffer area conveying device from a first position to a second position, controlling the drive motor in the buffer area conveying device to rotate forward, and transporting the unqualified transport vehicle to the maintenance area carrying device.

[0067] After the unqualified transport vehicle 20 is transported to the maintenance area carrier, an alarm can be triggered to remind the staff to perform maintenance on the transport vehicle 20 on the maintenance area carrier.

[0068] In another embodiment provided in this application, a readable storage medium is also provided, on which a computer program is stored, which, when executed by a processor, implements the transport vehicle detection method provided in the above embodiments.

[0069] The readable storage medium can be any storage medium that a computer can read, or a data storage device such as a server or data center that contains one or more storage media. The storage medium can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives).

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0071] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0072] The above are merely preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A transport vehicle detection apparatus, characterized by, The detection device comprises a detection assembly and a lifting assembly connected with the detection assembly and used to drive the detection assembly to lift, and the detection assembly is used to detect the empty transport carrier in the detection station; The detection assembly comprises a detection tool, the detection tool is provided with a detection hole, the detection hole is used for the positioning pin in the transport carrier to extend into, and the detection tool is provided with a detection member, the detection member is used to detect the position deviation of the positioning pin relative to the detection hole in a first direction and a second direction, the first direction is perpendicular to the second direction, and both are perpendicular to the height direction of the transport carrier detection device.

2. The transport vehicle detection apparatus of claim 1, wherein, The transport carrier detection device further comprises a reader, which is used to read the identification information stored in the carrier code body in the transport carrier; The transport carrier detection device further comprises a control module, which is electrically connected with the detection member and the reader, the control module is used to acquire the identification information and the position deviation, determine the detection result according to the position deviation, and store the identification information and the detection result corresponding to the identification information.

3. The transport vehicle detection apparatus according to claim 1 or 2, characterized by, The detection assembly has an avoiding position for avoiding the transport carrier and a detection position for detecting the transport carrier; The transport carrier detection device further comprises a fixed frame, and the detection assembly further comprises a sliding frame, the detection tool is connected to the sliding frame, and the sliding frame is slidingly connected to the fixed frame; The fixed frame is provided with a lifting stroke detection mechanism, the lifting stroke detection mechanism comprises a connecting line, a winding drum and an absolute encoder, the connecting line is wound on the winding drum and connected with the sliding frame, and the absolute encoder is connected with the winding drum.

4. The transport vehicle detection apparatus of claim 3, wherein, The fixed frame is provided with a first position detector and a second position detector, the first position detector is used to detect whether the detection assembly is in the detection position, and the second position detector is used to detect whether the detection assembly is in the avoiding position.

5. The transport vehicle detection apparatus of claim 3, wherein, The lifting assembly comprises a rotary driving member, a winding drum and a belt, one end of the belt is wound on the winding drum, the other end is connected with the sliding frame, the rotary driving member is connected with the winding drum, and the rotary driving member is used to drive the winding drum to rotate, so as to wind up or release the belt, so that the sliding frame rises or falls.

6. The transport vehicle detection apparatus of claim 3, wherein, The transport carrier detection device further comprises a position detector, which is used to detect whether the transport carrier is transported to the detection station, and send a position signal to the control module when detecting that the transport carrier is transported to the detection station, the control module receives the position signal, sends a first control signal to the lifting assembly to control the operation of the lifting assembly, so that the detection assembly falls to the detection position.

7. A transportation vehicle detection system characterized by, The detection device comprises a detection zone conveying device, a buffer zone conveying device, a maintenance zone bearing device and the transport carrier detection device as claimed in any one of claims 1 to 6. The detection area conveying device is located below a detection assembly in the transport vehicle detection device, the buffer area conveying device is used for receiving the transport vehicle to be detected which has not started to transport the vehicle body from the line conveying device, and conveying the transport vehicle to be detected to the detection area conveying device, and the detection assembly is used for detecting the transport vehicle to be detected on the detection area conveying device in a detection station. The detection area conveying device is used for conveying the detected transport vehicle to the buffer area conveying device, and the buffer area conveying device is further used for conveying the qualified transport vehicle after detection to the line conveying device, or conveying the unqualified transport vehicle after detection to the repair area bearing device.

8. The transportation vehicle detection system of claim 7, wherein, The buffer area conveying device is rotatable and has a first position and a second position. In the first position, two ends of the buffer area conveying device are respectively connected with the line conveying device and the detection area conveying device, and in the second position, one end of the buffer area conveying device is connected with the repair area bearing device.

9. A method of detecting a transportation vehicle, the method comprising: The transport vehicle detection method is applied to the transport vehicle detection system in claim 7 or 8, and the method comprises: receiving a detection completion signal and a detection result of the transport vehicle, and controlling the detection area conveying device to run to convey the detected transport vehicle to the buffer area conveying device; if the detection result of the transport vehicle is qualified, controlling the buffer area conveying device to run to convey the detected transport vehicle to the line conveying device; if the detection result of the transport vehicle is unqualified, controlling the buffer area conveying device to run to convey the detected transport vehicle to the repair area bearing device.

10. A readable storage medium, characterized by, The readable storage medium stores a computer program, and the computer program is executed by the processor to realize the transport vehicle detection method in claim 9. The readable storage medium stores a computer program, and the computer program is executed by the processor to realize the transport vehicle detection method in claim 9.

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