Water-cooling plate welding seam detection device based on centralized visual inspection

Abstract

The utility model relates to the technical field of visual inspection, in particular to a water-cooling plate welding seam detection device based on centralized visual inspection, which comprises a workbench and a conveying belt arranged on the workbench, a limiting mechanism is arranged on the conveying belt, a detection mechanism is arranged on one side of the conveying belt, and a pushing mechanism is arranged on the other side of the conveying belt; the detection mechanism comprises a vertical plate, an upper detection structure and a lower detection structure are arranged on the vertical plate in the height direction of the vertical plate, each of the upper detection structure and the lower detection structure comprises a light source, the two light sources intersect to form a detection area, and cameras in communication connection with the PLC are arranged at the two light sources in the light beam irradiation direction of the light sources correspondingly. A positioning plate connected with the vertical plate is arranged in a detection area formed by intersection of the light sources; the pushing mechanism comprises a base, a pushing block driven by a first electric pushing rod is arranged on the base in a sliding mode, and the pushing block and the positioning plate are oppositely arranged. According to the utility model, the use number of visual systems is obviously reduced, the cost is reduced, and the detection consistency is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to visual inspection technical field, especially relate to a water cooling plate weld detection device based on centralized visual inspection. BACKGROUND

[0002] In the manufacturing process of the water cooling plate, the current collector and the harmonica tube usually need to be sealed by high-frequency welding process, and the quality of the weld directly determines the sealing performance and service life of the water cooling plate. Therefore, the detection of the weld effect is a crucial link in the production process.

[0003] The existing detection scheme usually independently configures a set of CCD visual detection system on each high-frequency welding station to form a detection mode of "one station one camera", that is, a plurality of same welding stations (workpieces, welding equipment and workpiece welding positions are same) are additionally provided with a same set of CCD visual detection system. This mode has many disadvantages: 1. High cost: multiple welding stations need to be configured with multiple sets of CCD cameras, light sources and processing systems, which requires large equipment investment; 2. Poor detection consistency: due to the subtle differences in installation angle, lighting conditions and camera parameter calibration of each CCD system, the judgment standard for the same type of defects may be different, which affects the uniformity and fairness of the detection results; 3. Limited space interference and viewing angle: the welding station itself has complex mechanism, and there are welding coils, ceramic rod clamps and other devices, the installation space of the CCD camera is limited, it is difficult to find the best observation angle, and blind areas are easy to occur, or the imaging effect is interfered by splashes, smoke and other factors generated during welding; 4. Complex maintenance: scattered detection points increase the workload of equipment maintenance and parameter calibration.

[0004] Therefore, there is an urgent need in the art for an efficient weld detection scheme that can reduce costs, eliminate interference and ensure uniform detection standards. UTILITY MODEL CONTENT

[0005] To solve the problems in the prior art, the utility model provides a water cooling plate weld detection device based on centralized visual inspection, and the purpose and technical problems of the utility model are realized by adopting the following technical scheme.

[0006] The utility model provides a kind of water-cooled plate weld detection device based on centralized visual inspection, including workbench and the conveying belt being arranged on workbench, limit mechanism is equipped on conveying belt, and detection mechanism is equipped on one side of conveying belt, and push mechanism is equipped on the other side;Detection mechanism includes vertical plate, and upper detection structure, lower detection structure are arranged on vertical plate along its height direction, and upper detection structure, lower detection structure all include light source, two light sources intersect to form detection area, and two light sources are respectively equipped with camera with PLC communication connection along its beam irradiation direction, and detection area where light source intersects is equipped with positioning plate connected with vertical plate;Push mechanism includes base, and push block driven by first electric push rod is slidably arranged on base, and push block is oppositely arranged with positioning plate.

[0007] Optionally, the limit mechanism includes a proximity switch and a second electric push rod arranged in sequence along the conveying direction of the conveying belt, the proximity switch is electrically connected with the second electric push rod, and the second electric push rod is provided with a stop block at the telescopic end.

[0008] Optionally, the light source is fixedly connected with the vertical plate through a connecting rod, one end of the light source is provided with a first stud, and the first stud is fixed with the connecting rod through a first nut after penetrating through the connecting rod.

[0009] Optionally, one end of the connecting rod away from the light source is provided with a first slot hole, a fastening bolt is arranged in the first slot hole, and the fastening bolt is screw-connected with the vertical plate after penetrating through the first slot hole.

[0010] Optionally, one side of the camera is provided with a back plate, and the back plate is connected with an adjusting plate, wherein the adjusting plate corresponding to the upper detection structure is fixedly connected with the vertical plate, and the adjusting plate corresponding to the lower detection structure is fixedly connected with the workbench.

[0011] Optionally, a second stud is fixedly connected with one side of the back plate, and the second stud is connected with the adjusting plate through a second nut after penetrating through the adjusting plate.

[0012] Optionally, a second slot hole is arranged on the adjusting plate, and the two adjusting plates are screw-connected with the vertical plate and the workbench respectively through the cooperation of the second slot hole and the fastening stud.

[0013] Optionally, a rubber pad is arranged on one side of the push block close to the conveying belt.

[0014] Optionally, the push block, the positioning plate and the limit mechanism are arranged on the same horizontal plane.

[0015] In summary, the water-cooled plate weld detection device based on centralized visual inspection has the following advantages: greatly reducing the cost: through the centralized detection mode of "multi-station one camera", the traditional "one station one camera" mode is replaced, the number of expensive visual systems is significantly reduced, and the hardware cost, installation cost and long-term maintenance cost are reduced;

[0016] Ensure detection consistency: the products of all stations are compared under the same position, the same lighting conditions, the same camera, and the same set of detection parameters, completely eliminating the system error between stations, and greatly improving the consistency and reliability of the detection results;

[0017] Improve detection quality: avoid mechanical interference, electromagnetic field and dust pollution on the welding station site, the camera can obtain high-quality and high-definition weld images in a clean and stable environment, providing a basis for accurate identification of small defects;

[0018] Improve system flexibility: through mechanism adjustment and camera shooting angle, a centralized detection system can flexibly adapt to welding seam detection of various types of water-cooled plates, with strong versatility.

[0019] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the contents of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of a water-cooled plate welding seam detection device based on centralized visual detection.

[0021] Figure 2 It is Figure 1 The enlarged view of A in the middle.

[0022] Figure 3 It is an isometric view of a water-cooled plate welding seam detection device based on centralized visual detection.

[0023] Reference signs: 1, workbench; 2, conveyor belt; 3, vertical plate; 4, push block; 5, connecting rod; 6, fastening bolt; 7, first slot; 8, light source; 9, connecting plate; 10, adjusting plate; 11, second slot; 12, positioning plate; 13, proximity switch; 14, second electric push rod; 15, stop block; 16, base; 17, rubber pad; 18, back plate; 19, camera; 20, first electric push rod. DETAILED DESCRIPTION

[0024] The technical scheme of the present application is further described below in combination with the preferred embodiments and the drawings.

[0025] Please refer to Figure 1The utility model provides a kind of water-cooled plate weld detection device based on centralized visual detection, including workbench 1 and the conveying belt 2 being placed on workbench 1, the feed end of workbench 1 is equipped with a multi-degree-of-freedom motion mechanism (for example six-axis robot) for placing the water-cooled plate to be detected on conveying belt 2, limit mechanism is equipped on conveying belt 2, and one side of conveying belt 2 is equipped with detection mechanism, and the other side is equipped with push mechanism.

[0026] Please refer to Figure 2 Limit mechanism includes proximity switch 13, second electric push rod 14 sequentially arranged along the conveying direction of conveying belt 2, proximity switch 13 is electrically connected with second electric push rod 14 to control the extension or contraction of second electric push rod 14, and the telescopic end of second electric push rod 14 is equipped with stop block 15 for intercepting water-cooled plate at detection position.

[0027] Please refer to Figure 1 、 Figure 3 Detection mechanism includes vertical plate 3, and vertical plate 3 is arranged with upper detection structure and lower detection structure along its height direction, and upper detection structure and lower detection structure both include light source 8, specifically, light source 8 is fixedly connected with vertical plate 3 through connecting rod 5, one end of light source 8 is equipped with first stud, first stud penetrates connecting rod 5 and is fixed with connecting rod 5 through first nut, meanwhile, the end of connecting rod 5 away from light source 8 is equipped with first slot hole 7, and tight bolt 6 is arranged in first slot hole 7, and tight bolt 6 penetrates first slot hole 7 and is screwed with vertical plate 3; The light beams of two light sources 8 intersect to form detection area (i.e. the light source 8 of upper detection structure is inclined downward to irradiate, and the light source 8 of lower detection structure is upward to irradiate), and camera 19 (such as CCD camera) in communication connection with PLC is arranged along the light beam irradiation direction of two light sources 8 respectively, further, one side of camera 19 is equipped with backboard 18, and backboard 18 is connected with adjusting plate 10, wherein the adjusting plate 10 corresponding to upper detection structure is fixedly connected with vertical plate 3 through connecting plate 9, the adjusting plate 10 corresponding to lower detection structure is fixedly connected with workbench 1, and one side of backboard 18 is fixedly connected with second stud, second stud penetrates adjusting plate 10 and is connected with adjusting plate 10 through second nut, second slot hole 11 is arranged on adjusting plate 10, and two adjusting plates 10 are screwed with vertical plate 3 and workbench 1 respectively through the cooperation of second slot hole 11 and tight stud; By means of the foregoing technical features, the shooting angle and position of light source 8 and camera 19 can be adjusted, so that a set of centralized detection system can flexibly adapt to the weld detection of multiple different models of water-cooled plates, and the versatility of the device is improved.

[0028] The pushing mechanism includes a base 16, on which a push block 4 driven by a first electric push rod 20 is slidably mounted. A rubber pad 17 is provided on the side of the push block 4 near the conveyor belt 2, which can reduce the friction on the water-cooled plate when pushing it and ensure the surface quality of its end. A positioning plate 12 connected to the upright plate 3 is provided at the detection area formed by the intersection of the light beams of the light source 8. The positioning plate 12 is located at the center of the detection area. The push block 4 and the positioning plate 12 are arranged opposite each other, and the push block 4, the positioning plate 12 and the limiting mechanism are arranged on the same horizontal plane so that after the limiting mechanism intercepts the water-cooled plate, the push block 4 pushes the water-cooled plate to the center of the detection area that contacts the positioning plate 12.

[0029] Work process: After the welding station completes the welding of the water-cooled plates, a multi-degree-of-freedom motion mechanism (such as a six-axis robot) sequentially picks up the completed water-cooled plates from each welding station and places them on conveyor belt 2; conveyor belt 2 starts to transport the water-cooled plates (e.g., ... Figure 1 As shown, the conveyor belt 2's conveying direction is along the width of the workbench 1. When it approaches the proximity switch 13, the proximity switch 13 sends a signal to control the extension of the second electric push rod 14, thereby causing the stops 15 on both sides of the conveyor belt 2 to rise (as shown). Figure 1 As shown, the direction of movement of the stop 15 is along the height direction of the worktable 1) and after intercepting the water-cooled plate at the designated position, the conveyor belt 2 closes; subsequently, the first electric push rod 20 in the jacking mechanism extends, driving the push block 4 to move (as shown). Figure 1 As shown in the direction, the pusher 4 moves along the length of the worktable 1 to push the water-cooled plate to contact the positioning plate 12 (at this time, the end of the water-cooled plate to be inspected is located at the center of the inspection area). Then, the camera 19 automatically scans and acquires images of the welded end of the water-cooled plate, and at the same time, the data is transmitted to the processing unit (e.g., PLC). The processing unit compares the data with the preset standard model to determine whether the weld quality is qualified. After the inspection process is completed, the operator can directly remove the water-cooled plate from the conveyor belt 2.

[0030] The above description is merely a preferred embodiment of this utility model. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments based on the technical essence of this utility model without departing from the scope of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A water-cooled plate weld seam detection device based on centralized visual detection, characterized in that: The utility model provides a kind of automatic feeding device, including workbench (1) and the conveyor belt (2) of being arranged on workbench (1), limit mechanism is equipped on conveyor belt (2), and detection mechanism is equipped on one side of conveyor belt (2), and push mechanism is equipped on the other side of conveyor belt (2). The detection mechanism includes a vertical plate (3), which is arranged along its height direction. The upper detection structure and the lower detection structure are both equipped with a light source (8). The light beams of the two light sources (8) intersect to form a detection area. The two light sources (8) are equipped with a camera (19) that communicates with the PLC along the direction of the light beam. The detection area formed by the intersection of the light sources (8) is equipped with a positioning plate (12) connected to the vertical plate (3). The push mechanism includes a base (16), which is equipped with a push block (4) driven by a first electric push rod (20). The push block (4) is opposite to the positioning plate (12).

2. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 1, characterized in that: The limit mechanism includes a proximity switch (13) and a second electric push rod (14) arranged in sequence along the conveying direction of the conveyor belt (2). The proximity switch (13) is electrically connected to the second electric push rod (14), and the second electric push rod (14) is equipped with a stop block (15).

3. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 1, characterized in that: The light sources (8) are fixed to the vertical plate (3) through connecting rods (5). One end of the light source (8) is equipped with a first stud. The first stud passes through the connecting rod (5) and is fixed to the connecting rod (5) through a first nut.

4. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 3, characterized in that: The end of the connecting rod (5) away from the light source (8) is equipped with a first slot hole (7). The first slot hole (7) is equipped with a fastening bolt (6). The fastening bolt (6) passes through the first slot hole (7) and is screwed to the vertical plate (3).

5. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 1, characterized in that: One side of the camera (19) is equipped with a back plate (18), which is connected to an adjusting plate (10). The adjusting plate (10) corresponding to the upper detection structure is fixed to the vertical plate (3), and the adjusting plate (10) corresponding to the lower detection structure is fixed to the workbench (1).

6. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 5, characterized in that: One side of the back plate (18) is fixed to a second stud. The second stud passes through the adjusting plate (10) and is connected to the adjusting plate (10) through a second nut.

7. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 5, characterized in that: The adjusting plate (10) is equipped with a second slot hole (11). The two adjusting plates (10) are screwed to the vertical plate (3) and the workbench (1) respectively through the cooperation of the second slot hole (11) and the fastening stud.

8. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 1, characterized in that: The push block (4) is equipped with a rubber pad (17) on the side close to the conveyor belt (2).

9. The water-cooled plate weld seam detection device based on centralized visual detection according to claim 1, characterized in that: The push block (4), the positioning plate (12), and the limit mechanism are located on the same horizontal plane.

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