Industrial vision detection device for a painting production line

By using a single-motor driven unidirectional ratchet mechanism and a friction-type transmission docking structure, combined with the nested design of the bushing and the spindle, the rotation and flipping of the workpiece in the coating production line are realized, solving the problem of blind spots in the coating production line and improving inspection efficiency and production continuity.

CN122306832APending Publication Date: 2026-06-30JIANGSU JINGZHONGJING IND PAINTING EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU JINGZHONGJING IND PAINTING EQUIP CO LTD
Filing Date
2026-05-13
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing fixed industrial vision inspection devices in the coating production line cannot achieve comprehensive, blind-spot-free inspection of the outer periphery and end face of the workpiece, resulting in blind spots. In addition, they are complex in structure, high in cost, and have poor adaptability.

Method used

A single motor is used in conjunction with two sets of one-way ratchet mechanisms and a friction-type transmission docking structure to achieve independent drive for workpiece rotation and flipping. Combined with side and end vision modules, the workpiece rotation and flipping actions are driven by the forward and reverse rotation of the single motor. The nested design of bushing and mandrel enables comprehensive inspection of the workpiece's outer periphery and end face.

Benefits of technology

The simplified device structure reduces equipment costs and maintenance difficulty, decreases the complexity of multi-motor collaborative control, enables comprehensive inspection of the workpiece's outer periphery and end face, improves inspection efficiency and production continuity, and avoids missed inspections and false inspections caused by manual intervention.

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Abstract

This invention discloses an industrial vision inspection device for a coating production line, relating to the field of industrial automation inspection technology. It includes a base plate and a dual-function drive assembly. Side plates are fixedly installed on both sides of the base plate, and a conveyor belt is installed between the two side plates. The dual-function drive assembly is mounted on one side plate and includes a body disposed on one side of the conveyor belt. Slider blocks are fixedly installed on both sides of the bottom of the body, and a connecting plate is fixedly installed in the middle of the bottom of the body. A sensing module is installed on the end face of the connecting plate. This industrial vision inspection device for a coating production line utilizes the unidirectional engagement characteristics of two sets of unidirectional ratchet wheels. The forward and reverse rotation of a single motor can drive the workpiece's rotation and flipping actions respectively, eliminating the need for two separate drive mechanisms. This significantly simplifies the device structure, reduces equipment costs and maintenance difficulty, and also reduces the complexity of multi-motor collaborative control.
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Description

Technical Field

[0001] This invention relates to the field of industrial automation inspection technology, specifically to an industrial vision inspection device for a coating production line. Background Technology

[0002] As a key process for the protection and decoration of workpiece surfaces, coating is affected by defects such as runs, pinholes, bubbles, color differences, and scratches on the coating surface, which directly affect the appearance quality and service life of the product. Therefore, surface quality inspection after coating is the core link in the quality control of the coating production line.

[0003] With the popularization of machine vision technology, some coating production lines have introduced fixed industrial vision inspection devices. However, these devices are mostly fixed-station, fixed-view inspection modes, which can only collect images of a single surface or local area of ​​the workpiece. They cannot achieve comprehensive, blind-spot-free inspection of the workpiece's outer perimeter and end face. To eliminate blind spots, some solutions require transferring the workpiece to an offline inspection station and completing multi-angle inspection by manual flipping or multi-station transfer. This not only increases the interruption time of the production cycle but also introduces the risk of bumps and secondary contamination during the secondary handling of the workpiece.

[0004] To address the shortcomings of the existing technology, this application proposes an industrial vision inspection device for a coating production line. This device uses a single motor in conjunction with two sets of unidirectional ratchet mechanisms to achieve independent drive for workpiece rotation and flipping. Combined with a friction-type transmission docking structure, it enables online, blind-angle-free inspection of the surface of the coated workpiece, thereby solving the problems of blind spots, complex structure, high cost, and poor adaptability in the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide an industrial visual inspection device for a coating production line to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an industrial vision inspection device for a coating production line, comprising a base plate and a dual-function drive assembly. Side plates are fixedly installed on both sides of the base plate, and a conveyor belt is installed between the two side plates. The dual-function drive assembly is mounted on one side plate. The dual-function drive assembly includes a body disposed on one side of the conveyor belt. Slider blocks are fixedly installed on both sides of the bottom of the body, and a connecting plate is fixedly installed at the middle of the bottom of the body. A sensing module is installed on the end face of the connecting plate. A tensioning wheel is rotatably installed at the rear of the body, and tensioning wheels are rotatably installed at both ends of the front of the body. The machine is rotatably mounted with an upper drive wheel. A motor is fixedly mounted on the machine body, and a rotating shaft is fixedly connected to the rotating end of the motor. A forward ratchet is coaxially fixed on the upper part of the rotating shaft, and the forward ratchet is embedded in the central hole of the forward ratchet. A timing belt is fitted around the outer circumference of the forward ratchet, and the timing belt is connected in sequence to the tension wheel at the rear and the upper drive wheels at both ends of the front. A reverse ratchet is coaxially fixed on the lower part of the rotating shaft, and the reverse ratchet is embedded in the central hole of the reverse ratchet. A lower drive wheel is coaxially fixed around the outer circumference of the reverse ratchet, and the lower drive wheel is not at the same horizontal height as the upper drive wheels on both sides.

[0007] Furthermore, the motor synchronously drives the forward ratchet and the reverse ratchet to rotate via the rotating shaft. The forward ratchet only engages with the inner ring of the forward ratchet to receive torque when the rotating shaft rotates in the forward direction, and the reverse ratchet only engages with the inner ring of the reverse ratchet to receive torque when the rotating shaft rotates in the reverse direction.

[0008] Furthermore, the machine body is mounted on a support plate, and guide rails are fixedly installed on both sides of the support plate. The machine body slides on the guide rails on both sides via sliders on both sides of the bottom, and the translational direction of the machine body is perpendicular to the running direction of the conveyor belt.

[0009] Furthermore, a cylinder is bolted to the end of the support plate, and a telescopic rod is fixedly connected to the telescopic end of the cylinder, with the end of the telescopic rod fixed to the connecting plate.

[0010] Furthermore, a wing plate is fixedly installed on the other side of the side plate. An inner support rod is fixedly installed on the wing plate close to the inner end face, and a side vision module is installed at the end of the inner support rod. An outer support rod is fixedly installed on the wing plate close to the outer end face, and an end face vision module is installed at the end of the outer support rod.

[0011] Furthermore, a fixture base is conveyed on the conveyor belt, and a positioning module that cooperates with the sensing module is installed on one side of the fixture base.

[0012] Furthermore, a bracket is fixedly installed on the other side of the fixture base, and an outer sleeve is fixedly installed at the end of the bracket.

[0013] Furthermore, the lower part of the fixture base is provided with a lower driven wheel, and the lower driven wheel is driven to rotate only when the shaft reverses. A mandrel is coaxially fixed on the lower driven wheel, and a conical wheel is coaxially fixed at the end of the mandrel.

[0014] Furthermore, the upper part of the fixture base is provided with a flip detection component, which includes an upper driven wheel disposed above the lower driven wheel. A bushing is coaxially fixed on the upper driven wheel, and the bushing is rotatably installed inside the outer sleeve. The inner diameter of the bushing is larger than the outer diameter of the mandrel.

[0015] Furthermore, the flipping detection assembly also includes a U-shaped frame coaxially fixed to the end of the bushing, the conical wheel is rotatably mounted on the bottom end of the notch of the U-shaped frame, and an umbrella wheel that meshes with the conical wheel is rotatably mounted on the side of the U-shaped frame. The outer side of the umbrella wheel is connected to the input end of the transmission component, and a clamp is rotatably mounted on the output end of the transmission component. The workpiece body is fixed inside the clamp with bolts.

[0016] This invention provides an industrial visual inspection device for a coating production line, which has the following beneficial effects; 1. This application utilizes the unidirectional meshing characteristics of two sets of unidirectional ratchet wheels, and can drive the workpiece to rotate and flip by only one motor in both forward and reverse directions. This eliminates the need for two separate drive mechanisms, greatly simplifies the device structure, reduces equipment costs and maintenance difficulty, and also reduces the complexity of multi-motor coordinated control.

[0017] 2. This application uses a nested design of bushing and mandrel to make the rotation of the workpiece driven by the overall rotation of the U-shaped frame and the flipping action of the workpiece driven by the flipping of the fixture around the transverse axis independent and do not interfere with each other. With the side and end vision modules, the comprehensive inspection of the outer periphery and end face of the workpiece can be completed at one time, which completely solves the problem of blind spots in traditional inspection devices and improves the completeness of defect identification.

[0018] 3. This application adopts a transmission method of body translation and frictional contact between drive wheel and driven wheel, so that the device is linked with the conveyor belt of the coating production line. Automatic positioning and automatic detection of workpieces are realized through sensing module and positioning module. No manual feeding or positioning intervention is required, avoiding the problems of missed detection and false detection in manual detection. At the same time, the online detection mode does not require the separate setting of offline detection station, reducing workpiece handling links and improving detection efficiency and production continuity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention. Figure 2 This is a schematic diagram of the overall structure of the device of the present invention from a second perspective; Figure 3 This is a schematic diagram of part of the structure of the device of the present invention; Figure 4 This is a schematic diagram showing the breakdown of the transmission link between the upper driven wheel and the lower driven wheel in this invention; Figure 5 This is a schematic diagram of the flip detection component structure of the present invention; Figure 6 This is a schematic diagram of the separate structure of the support plate and the dual-function drive component of the present invention; Figure 7 This is a schematic diagram of the overall structure of the dual-function drive component of the present invention; Figure 8 This is a partial structural diagram of the dual-function drive component of the present invention.

[0020] In the diagram: 1. Base plate; 2. Side plate; 3. Conveyor belt; 4. Dual-function drive assembly; 401. Machine body; 402. Slider; 403. Connecting plate; 404. Sensor module; 405. Tensioner wheel; 406. Upper drive wheel; 407. Motor; 408. Shaft; 409. Forward ratchet; 410. Forward ratchet wheel; 411. Synchronous belt; 412. Reverse ratchet; 413. Reverse ratchet wheel; 414. Lower drive wheel; 5. Support plate; 6. Guide rail; 7. Cylinder; 8. Extension 2101. Retractable rod; 2102. Wing plate; 2103. Inner support rod; 2104. Side vision module; 2105. Outer support rod; 2106. End face vision module; 2107. Fixture base; 2108. Positioning module; 2109. Bracket; 21000. Outer sleeve; 21000. Lower driven wheel; 2101. Mandrel; 2102. Conical wheel; 2103. Tilting detection assembly; 2104. Upper driven wheel; 2105. Bushing; 2106. U-shaped frame; 2107. Parasol wheel; 2108. Transmission component; 2109. Fixture; 21000. Workpiece body. Detailed Implementation

[0021] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention. Please see Figures 6 to 8This invention provides a technical solution: an industrial vision inspection device for a coating production line, comprising a base plate 1 and a dual-function drive assembly 4. Side plates 2 are fixedly installed on both sides of the base plate 1, and a conveyor belt 3 is installed between the two side plates 2. The dual-function drive assembly 4 is mounted on one side plate 2. The dual-function drive assembly 4 includes a body 401 disposed on one side of the conveyor belt 3. Slider blocks 402 are fixedly installed on both sides of the bottom of the body 401, and a connecting plate 403 is fixedly installed at the middle of the bottom of the body 401. A sensing module 404 is installed on the end face of the connecting plate 403. A tensioning wheel 405 is rotatably installed at the rear of the body 401, and upper drive wheels 406 are rotatably installed at both ends of the front of the body 401. A motor 407 is fixedly installed on the body 401, and a rotating shaft 408 is fixedly connected to the rotating end of the motor 407. A forward ratchet 409 is coaxially fixed on the upper part of the rotating shaft 408. The forward ratchet 409 is fitted inside the central hole of the forward ratchet 410. The forward ratchet 410 is fitted with a timing belt 411 on its outer circumference. The timing belt 411 is connected in sequence to the tension wheel 405 at the rear and the upper drive wheels 406 at both ends at the front. The lower part of the rotating shaft 408 is coaxially fixed with a reverse ratchet 412, which is fitted inside the central hole of the reverse ratchet 413. The lower drive wheel 414 is coaxially fixed to the outer circumference of the reverse ratchet 413. The lower drive wheel 414 is not at the same horizontal height as the upper drive wheels 406 on both sides. The motor 407 synchronously drives the forward ratchet 409 and the reverse ratchet 412 to rotate through the rotating shaft 408. The forward ratchet 409 only engages with the inner ring of the forward ratchet 410 to receive torque when the rotating shaft 408 rotates forward, and the reverse ratchet 412 only engages with the inner ring of the reverse ratchet 413 to receive torque when the rotating shaft 408 rotates in reverse. The specific operation is as follows: the workpiece body 2107 to be tested is pre-clamped in the fixture 2106 on the fixture base 14 and conveyed along the production line direction by the conveyor belt 3. When the positioning module 15 on the side of the fixture base 14 is matched with the sensing module 404 on the machine body 401, the conveyor belt 3 automatically stops running, accurately stopping the workpiece at the vision inspection station and completing the initial positioning. The cylinder 7 drives the telescopic rod 8 to extend, pushing the machine body 401 to translate along the guide rail 6 on the support plate 5 in a direction perpendicular to the running direction of the conveyor belt 3, so that the front of the machine body 401... The upper drive wheel 406 and the lower drive wheel 414 at the notch are respectively in contact with the outer periphery of the upper driven wheel 2101 and the lower driven wheel 18 on the fixture base 14 to form a friction transmission pair, which prepares for subsequent power transmission. This application utilizes the one-way meshing characteristics of two sets of one-way ratchet wheels, and can drive the workpiece to rotate and flip by only the forward and reverse rotation of a single motor 407. There is no need to set up two additional independent drive mechanisms, which greatly simplifies the device structure, reduces equipment cost and maintenance difficulty, and reduces the complexity of multi-motor 407 collaborative control. Please see Figures 1 to 2The machine body 401 is mounted on the support plate 5, and guide rails 6 are fixedly installed on both sides of the support plate 5. The machine body 401 slides on the guide rails 6 via sliders 402 on both sides of the bottom. The translation direction of the machine body 401 is perpendicular to the running direction of the conveyor belt 3. A cylinder 7 is bolted to the end of the support plate 5, and a telescopic rod 8 is fixedly connected to the telescopic end of the cylinder 7. The end of the telescopic rod 8 is fixed to the connecting plate 403. A wing plate 9 is fixedly installed on the other side plate 2. An inner support rod 10 is fixedly installed close to the inner end face of the wing plate 9, and a side vision module 11 is installed at the end of the inner support rod 10. An outer support rod 12 is fixedly installed close to the outer end face of the wing plate 9, and an end face vision module 13 is installed at the end of the outer support rod 12. The specific operation is as follows: After the end face inspection is completed, the cylinder 7 drives the telescopic rod 8 to retract, which drives the machine body 401 to reset. The drive wheel and the driven wheel disengage, and the conveyor belt 3 resumes operation. The inspected workpiece enters the next process with the fixture base 14. At the same time, the next workpiece to be inspected enters the inspection station. The above process is repeated. This application adopts the transmission method of translation of the machine body 401 and friction contact between the drive wheel and the driven wheel, so that the device is linked with the conveyor belt 3 of the coating production line. Automatic positioning and automatic inspection of the workpiece are realized through the sensing module 404 and the positioning module 15. There is no need for manual feeding and positioning intervention, which avoids the problems of missed inspection and false inspection in manual inspection. At the same time, the online inspection mode does not require a separate offline inspection station, reduces the workpiece handling links, and improves inspection efficiency and production continuity. Please see Figures 3 to 5 A fixture base 14 is conveyed on the conveyor belt 3. A positioning module 15 that cooperates with the sensing module 404 is installed on one side of the fixture base 14. A bracket 16 is fixedly installed on the other side of the fixture base 14, and an outer sleeve 17 is fixedly installed at the end of the bracket 16. A lower driven wheel 18 is provided at the lower part of the fixture base 14. The lower driven wheel 18 is driven to rotate only when the rotating shaft 408 reverses. A spindle 19 is coaxially fixed on the lower driven wheel 18, and a conical wheel 20 is coaxially fixed at the end of the spindle 19. A flip detection component 21 is provided on the upper part of the fixture base 14. The flip detection component 21 includes an upper driven wheel 210 disposed above the lower driven wheel 18. 1. A bushing 2102 is coaxially fixed on the upper driven wheel 2101, and the bushing 2102 is rotatably installed inside the outer sleeve 17. The inner diameter of the bushing 2102 is larger than the outer diameter of the spindle 19. The flipping detection assembly 21 also includes a U-shaped frame 2103 coaxially fixed to the end of the bushing 2102. The conical wheel 20 is rotatably installed at the bottom end of the notch of the U-shaped frame 2103. The side of the U-shaped frame 2103 is rotatably installed with an umbrella wheel 2104 that meshes with the conical wheel 20. The outer side of the umbrella wheel 2104 is connected to the input end of the transmission component 2105. The output end of the transmission component 2105 is rotatably installed with a clamp 2106. The workpiece body 2107 is fixed inside the clamp 2106 with bolts. The specific operation is as follows: When visually inspecting the coating on the outer periphery of the workpiece body 2107, on the one hand, the motor 407 controls the rotating shaft 408 to rotate forward. At this time, the forward ratchet 409 on the upper part of the rotating shaft 408 only engages with the inner ring of the forward ratchet 410 in the forward rotation direction, driving the forward ratchet 410 to rotate synchronously. The forward ratchet 410 drives the upper drive wheels 406 on both sides to rotate synchronously through the synchronous belt 411 on the outer periphery, and then drives the upper driven wheel 2101 to rotate through friction transmission. The upper driven wheel 2101 drives the coaxial bushing 2102 to rotate. The bushing 2102 drives the U-shaped frame 2103 to rotate as a whole, so that the workpiece body 2107 clamped in the fixture 2106 rotates around its own axis. The workpiece rotates along its axis, and the side vision module 11 simultaneously acquires image information of the workpiece's outer periphery to detect and identify defects such as scratches, bubbles, and color differences in the workpiece's side coating. During this process, the reverse ratchet 412 at the lower part of the rotating shaft 408 is in a slipping, idling state because its rotation direction is opposite to the meshing direction of the reverse ratchet 413. The lower drive wheel 414 has no power output and does not affect the workpiece's rotation. On the other hand, after the outer periphery inspection is completed, the motor 407 controls the rotating shaft 408 to reverse. At this time, the reverse ratchet 412 at the lower part of the rotating shaft 408 only meshes with the inner ring of the reverse ratchet 413 in the reverse direction, driving the reverse ratchet 413 to rotate synchronously, which in turn drives the lower drive wheel 414 to rotate. The driven wheel 414 drives the driven wheel 18 to rotate via friction transmission. The driven wheel 18 drives the coaxial spindle 19 to rotate. The conical wheel 20 at the end of the spindle 19 meshes with the parapet wheel 2104 at the notch of the U-shaped frame 2103, converting the rotational motion of the spindle 19 into the lateral rotation of the parapet wheel 2104. Then, through the transmission component 2105, the clamp 2106 is rotated, causing the workpiece body 2107 to complete the up-and-down rotation. The end face vision module 13 simultaneously acquires image information of the workpiece end face and detects and identifies defects in the coating of the workpiece end face. During this process, the forward ratchet 409 on the upper part of the rotating shaft 408 is in a slipping and idling state because its rotation direction is opposite to the meshing direction of the forward ratchet 410. In this state, the upper drive wheel 406 has no power output, and the outer diameter of the spindle 19 is smaller than the inner diameter of the bushing 2102. The rotation of the spindle 19 will not interfere with the original state of the bushing 2102 and the U-shaped frame 2103, realizing independent control of workpiece flipping and rotation. Through the nested design of the bushing 2102 and the spindle 19, this application makes the workpiece rotation driven by the overall rotation of the U-shaped frame 2103 and the workpiece flipping action driven by the flipping of the fixture 2106 around the transverse axis independent and non-interfering with each other. With the side and end vision modules 13, the comprehensive inspection of the outer periphery and end face of the workpiece can be completed at one time, completely solving the problem of blind spots in traditional inspection devices and improving the completeness of defect identification.

[0022] In summary, when using the industrial vision inspection device in this coating production line: First, the workpiece body 2107 to be tested is pre-clamped in the fixture 2106 on the fixture base 14 and conveyed along the production line direction by the conveyor belt 3. When the positioning module 15 on the side of the fixture base 14 is matched with the sensing module 404 on the machine body 401, the conveyor belt 3 automatically stops running, accurately stopping the workpiece at the visual inspection station and completing the initial positioning. Secondly, the cylinder 7 drives the telescopic rod 8 to extend, pushing the machine body 401 to translate along the guide rail 6 on the support plate 5 in a direction perpendicular to the running direction of the conveyor belt 3. This causes the upper drive wheel 406 at the front of the machine body 401 and the lower drive wheel 414 at the notch to fit against the outer periphery of the upper driven wheel 2101 and the lower driven wheel 18 on the fixture base 14, forming a friction transmission pair to prepare for subsequent power transmission. This application utilizes the one-way engagement characteristics of two sets of one-way ratchet wheels, and can drive the workpiece to rotate and flip by only the forward and reverse rotation of a single motor 407. There is no need to set up two additional independent drive mechanisms, which greatly simplifies the device structure, reduces equipment cost and maintenance difficulty, and also reduces the complexity of multi-motor 407 collaborative control. Then, during visual inspection of the coating on the outer periphery of workpiece body 2107: On one hand, the motor 407 controls the rotating shaft 408 to rotate forward. At this time, the forward ratchet 409 on the upper part of the rotating shaft 408 only meshes with the inner ring of the forward ratchet 410 in the forward rotation direction, driving the forward ratchet 410 to rotate synchronously. The forward ratchet 410 drives the upper drive wheels 406 on both sides to rotate synchronously through the synchronous belt 411 on the outer circumference. Then, through friction transmission, it drives the upper driven wheel 2101 to rotate. The upper driven wheel 2101 drives the coaxial bushing 2102 to rotate. The bushing 2102 drives U The frame 2103 rotates as a whole, causing the workpiece body 2107, which is clamped in the fixture 2106, to rotate around its own axis. The side vision module 11 simultaneously collects image information of the outer periphery of the workpiece and detects and identifies defects such as scratches, bubbles, and color differences in the side coating of the workpiece. During this process, the reverse ratchet 412 at the bottom of the rotating shaft 408 is in a slipping and idling state because its rotation direction is opposite to the meshing direction of the reverse ratchet 413. The lower drive wheel 414 has no power output and does not affect the workpiece's rotation. On the other hand, after the peripheral inspection is completed, the motor 407 controls the rotating shaft 408 to reverse. At this time, the reverse ratchet 412 at the lower part of the rotating shaft 408 only meshes with the inner ring of the reverse ratchet 413 in the reverse direction, driving the reverse ratchet 413 to rotate synchronously, which in turn drives the lower drive wheel 414 to rotate. The lower drive wheel 414 drives the lower driven wheel 18 to rotate through friction transmission. The lower driven wheel 18 drives the coaxial spindle 19 to rotate. The conical wheel 20 at the end of the spindle 19 meshes with the parapet wheel 2104 at the notch of the U-shaped frame 2103, converting the rotational motion of the spindle 19 into the lateral rotation of the parapet wheel 2104. Then, through the transmission component 2105, the clamp 2106 is rotated, so that the workpiece body 2107 completes the up-and-down rotation action. The end face vision module 13 synchronously collects the image information of the workpiece end face to detect defects in the coating of the workpiece end face. During the identification process, the forward ratchet 409 on the upper part of the rotating shaft 408 is in a slipping and idling state because its rotation direction is opposite to that of the forward ratchet 410. The upper drive wheel 406 has no power output, and the outer diameter of the spindle 19 is smaller than the inner diameter of the bushing 2102. The rotation of the spindle 19 will not interfere with the original state of the bushing 2102 and the U-shaped frame 2103, realizing independent control of workpiece flipping and rotation. Through the nested design of the bushing 2102 and the spindle 19, this application makes the workpiece rotation driven by the overall rotation of the U-shaped frame 2103 and the workpiece flipping action driven by the rotation of the fixture 2106 around the transverse axis independent and non-interfering with each other. With the side and end vision modules 13, the comprehensive inspection of the outer periphery and end face of the workpiece can be completed at one time, completely solving the problem of blind spots in traditional inspection devices and improving the completeness of defect identification. Finally, after the end face inspection is completed, the cylinder 7 drives the telescopic rod 8 to retract, causing the machine body 401 to reset. The drive wheel and the driven wheel disengage, and the conveyor belt 3 resumes operation. The inspected workpiece enters the next process with the fixture base 14, and at the same time, the next workpiece to be inspected enters the inspection station. The above process is repeated. This application adopts a transmission method of translation of the machine body 401 and friction contact between the drive wheel and the driven wheel, so that the device is linked with the conveyor belt 3 of the coating production line. Automatic positioning and automatic inspection of the workpiece are realized through the sensing module 404 and the positioning module 15. There is no need for manual feeding and positioning intervention, which avoids the problems of missed inspection and false inspection in manual inspection. At the same time, the online inspection mode does not require a separate offline inspection station, reduces the workpiece handling links, and improves inspection efficiency and production continuity.

[0023] It should be noted that, in this document, 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 process, method, article, or apparatus.

[0024] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. An industrial vision inspection device for a coating production line, comprising a base plate (1) and a dual-function drive assembly (4), characterized in that, Side plates (2) are fixedly installed on both sides of the base plate (1), and a conveyor belt (3) is installed between the two side plates (2). The dual-function drive assembly (4) is installed on one side plate (2). The dual-function drive assembly (4) includes a body (401) disposed on one side of the conveyor belt (3). Slider blocks (402) are fixedly installed on both sides of the bottom of the body (401), and a connecting plate (403) is fixedly installed at the middle of the bottom of the body (401). A sensing module (404) is installed on the end face of the connecting plate (403). A tensioning wheel (405) is rotatably installed at the rear of the body (401), and upper drive wheels (406) are rotatably installed at both ends of the front of the body (401). A motor (407) is fixedly installed on the body (401), and the motor ( 407) A rotating shaft (408) is fixedly connected to the rotating end. A forward ratchet (409) is fixedly coaxially on the upper part of the rotating shaft (408), and the forward ratchet (409) is embedded in the middle hole of the forward ratchet (410). A timing belt (411) is fitted on the outer periphery of the forward ratchet (410), and the timing belt (411) is connected in sequence to the rear tension wheel (405) and the upper drive wheels (406) at both ends of the front. A reverse ratchet (412) is fixedly coaxially on the lower part of the rotating shaft (408), and the reverse ratchet (412) is embedded in the middle hole of the reverse ratchet (413). A lower drive wheel (414) is fixedly coaxially on the outer periphery of the reverse ratchet (413), and the lower drive wheel (414) is not at the same horizontal height as the upper drive wheels (406) on both sides.

2. The industrial vision inspection device for a coating production line according to claim 1, characterized in that, The motor (407) synchronously drives the forward ratchet (409) and the reverse ratchet (412) to rotate via the rotating shaft (408). The forward ratchet (409) only engages with the inner ring of the forward ratchet (410) to receive torque when the rotating shaft (408) rotates forward, and the reverse ratchet (412) only engages with the inner ring of the reverse ratchet (413) to receive torque when the rotating shaft (408) rotates in reverse.

3. The industrial visual inspection device for a coating production line according to claim 2, characterized in that, The machine body (401) is mounted on the support plate (5), and guide rails (6) are fixedly installed on both sides of the support plate (5). The machine body (401) slides on the guide rails (6) on both sides through the sliders (402) on both sides of the bottom. The translation direction of the machine body (401) is perpendicular to the running direction of the conveyor belt (3).

4. The industrial vision inspection device for a coating production line according to claim 3, characterized in that, The support plate (5) is bolted to a cylinder (7), and the telescopic end of the cylinder (7) is fixedly connected to a telescopic rod (8), and the end of the telescopic rod (8) is fixed to the connecting plate (403).

5. The industrial vision inspection device for a coating production line according to claim 4, characterized in that, On the other side, a wing plate (9) is fixedly installed on the side plate (2). An inner support rod (10) is fixedly installed close to the inner end face of the wing plate (9), and a side vision module (11) is installed at the end of the inner support rod (10). An outer support rod (12) is fixedly installed close to the outer end face of the wing plate (9), and an end face vision module (13) is installed at the end of the outer support rod (12).

6. The industrial vision inspection device for a coating production line according to claim 5, characterized in that, A fixture base (14) is conveyed on the conveyor belt (3), and a positioning module (15) that cooperates with the sensing module (404) is installed on one side of the fixture base (14).

7. The industrial vision inspection device for a coating production line according to claim 6, characterized in that, A bracket (16) is fixedly installed on the other side of the fixture base (14), and an outer sleeve (17) is fixedly installed at the end of the bracket (16).

8. The industrial vision inspection device for a coating production line according to claim 7, characterized in that, The lower part of the fixture base (14) is provided with a lower driven wheel (18), and the lower driven wheel (18) is driven to rotate only when the shaft (408) is reversed. A spindle (19) is coaxially fixed on the lower driven wheel (18), and a conical wheel (20) is coaxially fixed at the end of the spindle (19).

9. The industrial vision inspection device for a coating production line according to claim 8, characterized in that, The fixture base (14) is provided with a flip detection component (21) on the upper part. The flip detection component (21) includes an upper driven wheel (2101) disposed above the lower driven wheel (18). A bushing (2102) is coaxially fixed on the upper driven wheel (2101). The bushing (2102) is rotatably installed inside the outer sleeve (17). The inner diameter of the bushing (2102) is larger than the outer diameter of the spindle (19).

10. An industrial vision inspection device for a coating production line according to claim 9, characterized in that, The flipping detection assembly (21) also includes a U-shaped frame (2103) coaxially fixed to the end of the bushing (2102). The conical wheel (20) is rotatably mounted on the bottom end of the notch of the U-shaped frame (2103), and a parasol wheel (2104) meshing with the conical wheel (20) is rotatably mounted on the side of the U-shaped frame (2103). The outer side of the parasol wheel (2104) is connected to the input end of the transmission component (2105), and a clamp (2106) is rotatably mounted on the output end of the transmission component (2105). The workpiece body (2107) is fixed inside the clamp (2106) by bolts.