Surface coating defect detection device for processing end cover of chemical reaction kettle

Abstract

The invention is applicable to the technical field of electroplating coating defect detection, and provides a surface coating defect detection device for processing an end cover of a chemical reaction kettle, which comprises a detection table connected with a visual detection assembly and provided with a clamp assembly, and further comprises a rotating seat fixedly connected with the detection table, the rotating seat is fixedly connected with a third motor, an output shaft of the third motor is fixedly connected with a light barrier, a moving mechanism is arranged in the light barrier, the sliding seat is connected with a storage box, an illumination lamp, a row of laser range finders and a spray head are sequentially arranged in the storage box, and the spray head can be connected with a water pump through a hose. According to the invention, external air can be subjected to impurity removal, drying and flow guiding through the drying mechanism, so that the influence of external air humidity and dust concentration on detection precision during detection is reduced.

Description

Technical Field

[0001] This invention belongs to the field of electroplating coating defect detection technology, and particularly relates to a surface coating defect detection device for processing end caps of chemical reaction vessels. Background Technology

[0002] In the processing of end caps for chemical reactors, the quality of the surface coating (such as electroplating) directly affects the corrosion resistance, sealing performance, and service life of the equipment. Traditional coating defect detection mainly relies on manual visual inspection or basic visual inspection systems, which have the following technical bottlenecks:

[0003] Sensitive to environmental interference: Existing detection devices lack integrated environmental control functions. Changes in air humidity, dust concentration and lighting conditions can significantly reduce the accuracy of visual detection, leading to misjudgment or missed detection.

[0004] Insufficient ability to distinguish defect types: Surface blemishes and real defects (such as cracks and peeling) are similar in two-dimensional visual features, and it is difficult to accurately distinguish them based on image analysis alone. It is necessary to combine three-dimensional morphological data to assist in the judgment.

[0005] Limited functionality: Most testing equipment only has image acquisition capabilities and does not integrate auxiliary modules such as cleaning, drying, and depth measurement, making it impossible to achieve an integrated process of detection-processing-re-inspection.

[0006] Weak dynamic adaptability: Lacking a real-time environmental monitoring and feedback mechanism, it is unable to dynamically adjust the detection strategy based on parameters such as humidity, light, and dust, affecting detection efficiency and stability.

[0007] Therefore, there is an urgent need to develop an intelligent defect detection device that integrates environmental control, multi-dimensional detection, and dynamic response to improve the accuracy, efficiency, and reliability of defect detection in the coating of chemical reactor end caps. To address the above issues, there is an urgent need to develop a surface coating defect detection device for the processing of chemical reactor end caps to improve detection accuracy and efficiency. Summary of the Invention

[0008] The purpose of this invention is to provide a surface coating defect detection device for the processing of chemical reactor end caps, aiming to solve the problem that existing surface coating defect detection devices for the processing of chemical reactor end caps lack integrated environmental control and in-depth detection capabilities.

[0009] This invention is implemented as follows: a surface coating defect detection device for processing end caps of chemical reactors includes a detection platform, a vision inspection component connected to the detection platform, a clamping assembly for holding the end caps of the chemical reactors on the detection platform, and further includes:

[0010] A rotating seat is fixedly connected to the testing platform. A No. 3 motor is fixedly connected to the rotating seat. A light-blocking plate is fixedly connected to the output shaft of the No. 3 motor. A moving mechanism is provided in the light-blocking plate. The moving mechanism can drive a sliding seat to move in a direction parallel to the light-blocking plate. A collection box is connected to the sliding seat. A light lamp, a row of laser rangefinders, and a nozzle are arranged in sequence in the collection box. The nozzle can be connected to a water pump through a hose. The sliding seat is also connected to an adjustment component that can partially close the collection box.

[0011] The light-blocking plate is also connected to a drying mechanism, which can remove impurities, dry, and guide the external air.

[0012] In a further technical solution, the moving mechanism includes a first drive component, a slide rail, and a second drive component;

[0013] The slide rail is slidably connected to the No. 3 motor, which is equipped with a No. 1 drive assembly that drives the slide rail to move linearly. The sliding seat is slidably disposed in the slide rail, and the slide rail is equipped with a No. 2 drive assembly that drives the sliding seat to move linearly. The No. 1 drive assembly and the No. 2 drive assembly are arranged perpendicularly to each other.

[0014] In a further technical solution, the adjustment component includes a No. 4 motor and a cover plate;

[0015] The storage box has two identical opening slots. The storage box is slidably connected to a cover plate, which can seal one of the opening slots. The sliding seat is fixedly connected to a No. 4 motor, and the output shaft of the No. 4 motor is threadedly connected to the cover plate.

[0016] In a further technical solution, the drying mechanism includes an air guide box, a first air pump, a filter box, and a second air pump;

[0017] The light-blocking plate is connected to an air guide box. Several air guide pipes are provided on the light-blocking plate, and all air guide pipes are connected to the air guide box. The air guide box is connected to a No. 1 air pump and a No. 2 air pump. An electric heater is provided at the air outlet of the No. 2 air pump. A filter box is provided between the No. 1 air pump and the air guide box, and activated carbon is placed in the filter box.

[0018] In a further technical solution, the visual inspection component includes a support frame, a first motor, a first drive shaft, and a visual detector;

[0019] The support frame is fixedly connected to the upper end face of the detection table. A No. 1 motor is fixedly connected to the support frame. A No. 1 transmission shaft is fixedly connected to the output shaft of the No. 1 motor. The No. 1 transmission shaft is threadedly connected to the base of the vision detector. The base of the vision detector is slidably connected to the support frame.

[0020] In a further technical solution, the clamping assembly includes a clamp, a second motor, and a second drive shaft;

[0021] Two clamps are slidably connected in the guide hole on the upper surface of the testing platform. A second motor is fixedly connected to the bottom surface of the testing platform. The two output shafts of the second motor are fixedly connected to a second transmission shaft. The threads of the two second transmission shafts are opposite, and the two second transmission shafts are threadedly connected to the two clamps respectively.

[0022] A further technical solution also includes a control system, which includes:

[0023] The monitoring module includes a humidity sensor, a light intensity sensor, and a dust concentration sensor mounted on the detection platform.

[0024] The processing module can input the temperature value from the humidity sensor, the light intensity value from the light intensity sensor, and the dust concentration value from the dust concentration sensor into the data processing model for processing and output the judgment result.

[0025] The control module can control the No. 3 motor, the moving mechanism, the drying mechanism, and the lighting lamps based on the judgment results output by the processing module.

[0026] A further technical solution is that the data processing model is as follows:

[0027] The humidity index is obtained by dividing the real-time humidity value by the maximum recorded air humidity value; the light intensity index is obtained by taking the absolute value of the difference between the real-time light intensity value and the optimal light intensity value and dividing it by the optimal light intensity value; the dust concentration index is obtained by dividing the real-time dust concentration value by the maximum recorded dust concentration value.

[0028] ;

[0029] in , as well as All are weighting coefficients. ,and , as well as All greater than ; Humidity index Light intensity index, The dust concentration index. This is the evaluation coefficient.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] Motor No. 3 drives the light-blocking plate to rotate, which in turn causes the illumination lamp to change the illumination angle on the end cover of the chemical reactor. The activation of the moving mechanism moves the illumination lamp, thereby changing the auxiliary lighting area of ​​the illumination lamp and further improving the auxiliary lighting adjustment range of the illumination lamp. The drying mechanism can remove impurities, dry and guide the external air, thereby reducing the impact of external air humidity and dust concentration on the detection accuracy during detection.

[0032] Motor No. 3 drives the light-blocking plate to rotate to the horizontal. At this time, the moving mechanism drives the sliding seat to move along the horizontal plane until the sliding seat moves to the vicinity of the stain. At this time, the adjustment component is activated to shield the light lamp and laser rangefinder, while the nozzle can perform high-pressure rinsing on the stain. At this time, the light-blocking plate can prevent water vapor from drifting upwards, while the drying mechanism can absorb water vapor in the air and dry the surface of the chemical reactor end cover.

[0033] Once activated, all laser rangefinders can move horizontally and scan the vicinity of suspected defects on the end cap of the chemical reactor, thus performing depth detection of defects on the end cap. The laser rangefinders can accurately determine the depth of defects on the end cap, overcoming the limitation of visual inspection alone using spotlights in effectively distinguishing between stains and defects. After the light-blocking plate is rotated to a horizontal position, not only can all laser rangefinders move horizontally, but the light-blocking plate can also effectively block external light, improving the scanning accuracy of the laser rangefinders.

[0034] When the evaluation coefficient exceeds the preset evaluation coefficient threshold, the processing module determines... , as well as The largest term in the equation is determined by controlling the No. 3 motor 5, the moving mechanism 6, the drying mechanism 9, and the illumination lamp 11, thereby controlling the components contained in the largest term. , or Adjustments are made to improve the evaluation coefficient. Keep it within the preset evaluation coefficient threshold. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the moving mechanism in this invention;

[0037] Figure 3 This is a schematic diagram of the drying mechanism in this invention;

[0038] Figure 4 This is a schematic diagram of the adjustment component structure in this invention;

[0039] Figure 5 This is a schematic diagram of the internal structure of the receiving box in this invention;

[0040] Figure 6 This is a schematic diagram of the internal structure of the clamp assembly in this invention.

[0041] In the attached diagram: 1. Inspection table; 2. Vision inspection component; 21. Support frame; 22. Motor 1; 23. Drive shaft 1; 24. Vision detector; 3. Fixture assembly; 31. Fixture; 32. Motor 2; 33. Drive shaft 2; 4. Rotating seat; 5. Motor 3; 6. Moving mechanism; 61. Drive component 1; 62. Slide rail; 63. Drive component 2; 7. Sliding seat; 8. Adjustment component; 81. Motor 4; 82. Cover plate; 9. Drying mechanism; 91. Air guide box; 92. Air pump 1; 93. Filter box; 94. Air pump 2; 95. Air guide pipe; 10. Collection box; 11. Illuminator; 12. Laser rangefinder; 13. Nozzle; 14. Light shield. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0044] like Figures 1-6 As shown, an embodiment of the present invention provides a surface coating defect detection device for processing end caps of chemical reactors, including a detection platform 1, a vision inspection component 2 connected to the detection platform 1, and a clamping component 3 for clamping the end caps of the chemical reactors on the detection platform 1, and further including:

[0045] A rotating seat 4 is fixedly connected to the testing platform 1. A No. 3 motor 5 is fixedly connected to the rotating seat 4. A light-blocking plate 14 is fixedly connected to the output shaft of the No. 3 motor 5. A moving mechanism 6 is provided in the light-blocking plate 14. The moving mechanism 6 can drive the sliding seat 7 to move in a direction parallel to the light-blocking plate 14. The sliding seat 7 is connected to a collection box 10. A light lamp 11, a row of laser rangefinders 12 and a nozzle 13 are arranged in sequence in the collection box 10. The nozzle 13 can be connected to a water pump through a hose. The sliding seat 7 is also connected to an adjustment component 8 that can partially close the collection box 10.

[0046] The light-blocking plate 14 is also connected to a drying mechanism 9, which can remove impurities, dry and guide the external air.

[0047] In this embodiment, the end cap of the chemical reactor is fixed on the inspection table 1 by the clamp assembly 3. Then, the defects on the electroplated coating of the end cap of the chemical reactor can be detected by the vision inspection assembly 2. Before the inspection, the end cap of the chemical reactor can be illuminated by the illumination lamp 11 to adjust the lighting conditions during the inspection. Furthermore, the No. 3 motor 5 drives the light-blocking plate 14 to rotate, and the light-blocking plate 14 drives the illumination lamp 11 to change the illumination angle on the end cap of the chemical reactor. The moving mechanism 6 is activated to move the illumination lamp 11, thereby changing the auxiliary lighting area of ​​the illumination lamp 11 and further improving the auxiliary lighting adjustment range of the illumination lamp 11. The drying mechanism 9 can remove impurities, dry and guide the external air, thereby reducing the impact of external air humidity and dust concentration on the inspection accuracy.

[0048] When a suspected defect is detected on the surface but cannot be determined, motor 5 is activated. Motor 5 drives the light-blocking plate 14 to rotate horizontally. At this time, the moving mechanism 6 moves the sliding seat 7 along the horizontal plane until the sliding seat 7 moves near the spot. Then, the adjusting component 8 is activated to shield the light lamp 11 and the laser rangefinder 12, while the nozzle 13 performs high-pressure rinsing on the spot. The light-blocking plate 14 prevents water vapor from rising, and the drying mechanism 9 absorbs water vapor in the air and dries the surface of the chemical reactor end cover. All laser rangefinders 12 are activated and move along the horizontal plane to scan the area near the suspected defect on the chemical reactor end cover, thereby performing depth detection of the defect on the chemical reactor end cover. The laser rangefinder 12 can accurately determine the depth of the defect on the chemical reactor end cover, thus overcoming the shortcoming of the light lamp 11, which cannot effectively distinguish between spots and defects through visual inspection alone. After the light-blocking plate 14 is rotated to a horizontal position, it not only enables all laser rangefinders 12 to move along the horizontal plane, but also effectively blocks external light, improving the scanning accuracy of the laser rangefinders 12.

[0049] like Figure 2 As shown, in a preferred embodiment of the present invention, the moving mechanism 6 includes a first drive component 61, a slide rail 62, and a second drive component 63.

[0050] The slide rail 62 is slidably connected to the third motor 5. The third motor 5 is provided with a first drive component 61 that drives the slide rail 62 to move linearly. The sliding seat 7 is slidably disposed in the slide rail 62. The slide rail 62 is provided with a second drive component 63 that drives the sliding seat 7 to move linearly. The first drive component 61 and the second drive component 63 are arranged perpendicularly to each other.

[0051] In this embodiment, both the first drive component 61 and the second drive component 63 are driven by a drive motor and a threaded shaft. The threaded shaft is fixedly connected to the output shaft of the motor. The first drive component 61 pushes the slide rail 62 to move along the surface of the light-blocking plate 14 through the threaded transmission, while the second drive component 63 drives the sliding seat 7 to move along the length direction of the slide rail 62 through the threaded transmission.

[0052] like Figure 4 As shown, in a preferred embodiment of the present invention, the adjustment component 8 includes a No. 4 motor 81 and a cover plate 82;

[0053] The storage box 10 has two identical opening slots. The storage box 10 is slidably connected to a cover plate 82, which can seal one of the opening slots. The sliding seat 7 is fixedly connected to a fourth motor 81, and the output shaft of the fourth motor 81 is threadedly connected to the cover plate 82.

[0054] In this embodiment, the output shaft of the No. 4 motor 81 drives the cover plate 82 to move through the threaded transmission. When it is necessary to rinse the surface of the chemical reactor end cover, the No. 4 motor 81 drives the cover plate 82 to the upper side, and the cover plate 82 shields the light lamp 11 and the laser rangefinder 12, thereby avoiding the reflection of water vapor from polluting the light lamp 11 and the laser rangefinder 12, affecting the auxiliary lighting effect of the light lamp 11 and the detection accuracy of the laser rangefinder 12.

[0055] like Figure 3 As shown, in a preferred embodiment of the present invention, the drying mechanism 9 includes an air guide box 91, a first air pump 92, a filter box 93, and a second air pump 94.

[0056] The light-blocking plate 14 is connected to an air guide box 91. Several air guide pipes 95 are provided on the light-blocking plate 14, and all air guide pipes 95 are connected to the air guide box 91. The air guide box 91 is connected to a first air pump 92 and a second air pump 94. An electric heater is provided at the air outlet of the second air pump 94. A filter box 93 is provided between the first air pump 92 and the air guide box 91, and activated carbon is placed in the filter box 93.

[0057] In this embodiment, when the air humidity near the end cover of the chemical reactor is too high, the No. 2 air pump 94 is started. Under the heating effect of the electric heater, the No. 2 air pump 94 delivers hot air to the vicinity of the end cover of the chemical reactor, thereby reducing the air humidity near the end cover of the chemical reactor. When the dust concentration near the end cover of the chemical reactor is too high, the No. 1 air pump 92 is started. The No. 1 air pump 92 draws in the air near the end cover of the chemical reactor and delivers it to the filter box 93. The activated carbon in the filter box 93 adsorbs the dust, thereby reducing the dust concentration when the visual inspection component 2 is detected.

[0058] like Figure 1 As shown, in a preferred embodiment of the present invention, the visual detection component 2 includes a support frame 21, a first motor 22, a first transmission shaft 23, and a visual detector 24.

[0059] The support frame 21 is fixedly connected to the upper end face of the detection table 1. A first motor 22 is fixedly connected to the support frame 21. The output shaft of the first motor 22 is fixedly connected to a first transmission shaft 23. The first transmission shaft 23 is threadedly connected to the base of the vision detector 24. The base of the vision detector 24 is slidably connected to the support frame 21.

[0060] In this embodiment, motor 22 is started, which drives transmission shaft 23 to rotate. Transmission shaft 23 drives vision detector 24 to move through threaded transmission. Vision detector 24 can perform visual inspection on the surface of the chemical reactor end cover.

[0061] like Figure 6 As shown, in a preferred embodiment of the present invention, the clamp assembly 3 includes a clamp 31, a second motor 32, and a second transmission shaft 33;

[0062] Two clamps 31 are slidably connected in the guide hole on the upper end face of the testing platform 1. A second motor 32 is fixedly connected to the bottom surface of the testing platform 1. The two output shafts of the second motor 32 are fixedly connected to a second transmission shaft 33. The two second transmission shafts 33 have opposite thread directions and are threadedly connected to the two clamps 31 respectively.

[0063] In this embodiment, the second motor 32 is started, which drives the two second drive shafts 33 to rotate simultaneously. The two second drive shafts 33 drive the two clamps 31 to move relative to each other through threaded transmission, and the two clamps 31 clamp the end cover of the chemical reactor.

[0064] In a preferred embodiment of the present invention, a control system is further included, the control system comprising:

[0065] The monitoring module includes a humidity sensor, a light intensity sensor, and a dust concentration sensor installed on the detection station 1.

[0066] The processing module is capable of taking the temperature value of the humidity sensor, the light intensity value of the light intensity sensor, and the dust concentration value of the dust concentration sensor into the data processing model for processing and outputting the judgment result. The processing module is preferably a computer processor.

[0067] The control module is capable of controlling the No. 3 motor 5, the moving mechanism 6, the drying mechanism 9, and the light lamp 11 based on the judgment result output by the processing module. The control module is preferably a controller.

[0068] In a preferred embodiment of the present invention, the data processing model is as follows:

[0069] The humidity index is obtained by dividing the real-time humidity value by the maximum recorded air humidity value; the light intensity index is obtained by taking the absolute value of the difference between the real-time light intensity value and the optimal light intensity value and dividing it by the optimal light intensity value; the dust concentration index is obtained by dividing the real-time dust concentration value by the maximum recorded dust concentration value.

[0070] ;

[0071] in , as well as All are weighting coefficients. ,and , as well as All greater than ; Humidity index Light intensity index, The dust concentration index. This is the evaluation coefficient.

[0072] In this embodiment, humidity, light intensity, and dust concentration values ​​are normalized by generating humidity, light intensity, and dust concentration indices, thereby converting them into dimensionless indices. , as well as A linear weighted model is used to comprehensively evaluate the dynamic interference of various environmental factors. , as well as Calibration can be performed through experiments or production experience, by... , as well as Adjustments can be made to regulate the weighting of humidity, light intensity, and dust concentration on the accuracy of visual inspection. When the evaluation coefficient... When the preset evaluation coefficient threshold is exceeded, the processing module determines... , as well as The largest term in the equation is determined by controlling the No. 3 motor 5, the moving mechanism 6, the drying mechanism 9, and the illumination lamp 11, thereby controlling the components contained in the largest term. , or Adjustments are made to improve the evaluation coefficient. Keep it within the preset evaluation coefficient threshold.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A kind of surface coating defect detection device for chemical reaction kettle end cover processing, including detection table (1), the detection table (1) is connected with visual detection component (2), the detection table (1) is provided with the fixture component (3) for being clamped to chemical reaction kettle end cover, it is characterized in that, Also include: The detection platform (1) is fixedly connected with a rotating seat (4), the rotating seat (4) is fixedly connected with a third motor (5), the output shaft of the third motor (5) is fixedly connected with a light shield (14), the light shield (14) is provided with a moving mechanism (6), the moving mechanism (6) can drive the sliding seat (7) to move along the direction parallel to the light shield (14), the sliding seat (7) is connected with a storage box (10), the storage box (10) is sequentially provided with a light lamp (11), a row of laser range finders (12) and a spray head (13), the spray head (13) can be connected with a water pump through a hose, the sliding seat (7) is also connected with an adjusting assembly (8) capable of partially closing the storage box (10); The light shield (14) is also connected with a drying mechanism (9), which can remove impurities, dry and guide the flow of external air.

2. The apparatus according to claim 1, wherein The moving mechanism (6) comprises a first drive assembly (61), a slide rail (62) and a second drive assembly (63); The slide rail (62) is slidably connected in the third motor (5), the third motor (5) is provided with a first drive assembly (61) for driving the slide rail (62) to move linearly, the sliding seat (7) is slidably arranged in the slide rail (62), the slide rail (62) is provided with a second drive assembly (63) for driving the sliding seat (7) to move linearly, and the first drive assembly (61) and the second drive assembly (63) are arranged vertically.

3. The apparatus according to claim 1, wherein The adjusting assembly (8) comprises a fourth motor (81) and a cover plate (82); The storage box (10) is provided with two identical open grooves, the storage box (10) is slidably connected with a cover plate (82), the cover plate (82) can seal one of the open grooves, the sliding seat (7) is fixedly connected with a fourth motor (81), and the output shaft of the fourth motor (81) is threadedly connected with the cover plate (82).

4. The apparatus according to claim 1, wherein The drying mechanism (9) comprises an air guide box (91), a first air pump (92), a filter box (93) and a second air pump (94); The light shield (14) is communicated with the air guide box (91), the light shield (14) is provided with a plurality of air guide pipes (95), all the air guide pipes (95) are communicated with the air guide box (91), the air guide box (91) is connected with the first air pump (92) and the second air pump (94), the air outlet of the second air pump (94) is provided with an electric heater, the first air pump (92) and the air guide box (91) are provided with the filter box (93), and the filter box (93) is placed with activated carbon.

5. The apparatus for detecting defects of surface coating layer for machining of an end cover of a chemical reaction vessel according to claim 1, characterized in that, The visual detection assembly (2) comprises a support frame (21), a first motor (22), a first transmission shaft (23) and a visual detector (24); The support frame (21) is fixedly connected with the upper end surface of the detection table (1), the support frame (21) is fixedly connected with a first motor (22), the output shaft of the first motor (22) is fixedly connected with a first transmission shaft (23), the first transmission shaft (23) is threadedly connected with the base of a visual detector (24), and the base of the visual detector (24) is slidably connected with the support frame (21).

6. The apparatus for detecting defects of surface coating layer for machining of an end cover of a chemical reaction vessel according to claim 1, characterized in that, Further comprising a control system, the control system comprises: A monitoring module comprising a humidity sensor, an illumination intensity sensor and a dust concentration sensor arranged on the detection table (1); A processing module capable of bringing the temperature value of the humidity sensor, the illumination intensity value of the illumination intensity sensor and the dust concentration value of the dust concentration sensor into a data processing model for processing and outputting a judgment result; A control module capable of controlling the third motor (5), the moving mechanism (6), the drying mechanism (9) and the illumination lamp (11) according to the judgment result output by the processing module.

7. The apparatus according to claim 6, wherein The data processing model is: Divide the real-time humidity value by the recorded maximum air humidity value to obtain a humidity index; subtract the optimal illumination intensity value from the real-time illumination intensity value, take the absolute value and divide by the optimal illumination intensity value to obtain an illumination intensity index; and divide the real-time dust concentration value by the recorded maximum dust concentration value to obtain a dust concentration index; 。

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