A board surface inspection apparatus

By designing a sheet metal surface inspection device, which utilizes components such as conveyor belts, vision inspection devices, and robotic arms, comprehensive inspection and automated sorting of stainless steel sheets are achieved. This solves the problem that existing equipment cannot quickly coordinate with the output of stainless steel strips, thereby improving inspection efficiency and product quality.

CN224372133UActive Publication Date: 2026-06-19ZHONGSHAN STANLEY METAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN STANLEY METAL TECH CO LTD
Filing Date
2025-03-12
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing sheet metal surface inspection equipment cannot quickly adapt to stainless steel strip output equipment and cannot automatically adjust the roller spacing in real time, affecting production efficiency and product quality.

Method used

A sheet metal surface inspection device was designed, including components such as a conveyor belt, a vision inspection device, a flipping robot, a handling robot, and a non-conforming sheet metal unloading robot. Through collaborative operation, it can achieve comprehensive inspection and automated sorting of stainless steel sheets, use a 3D camera for accurate inspection, and adapt to sheets of different sizes through a telescopic limit device.

🎯Benefits of technology

It improves the efficiency of stainless steel sheet inspection, ensures the pass rate of output, reduces production costs, realizes the automated inspection and sorting of stainless steel sheets, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224372133U_ABST
    Figure CN224372133U_ABST
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Abstract

This application discloses a sheet metal surface inspection device, including a frame, a conveyor belt mounted on the frame, a first visual inspection device located at the rear of the frame, a flipping robot located to the right of the first visual inspection device, a handling robot located at the front of the frame and to the right front of the flipping robot, a second visual inspection device located to the right of the flipping robot and to the left rear of the handling robot, and a non-conforming sheet metal unloading robot located to the right front of the frame. This application enables comprehensive inspection of both sides of stainless steel sheets, as well as the necessary flipping action during the inspection process. If defects such as scratches or dents are found on the surface during inspection, the non-conforming sheet metal unloading robot will unload the sheet, thereby achieving automated inspection and sorting of stainless steel sheets, significantly improving the efficiency of stainless steel sheet inspection, and ensuring the pass rate of stainless steel sheet output.
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Description

Technical Field

[0001] This application relates to the technical field of sheet metal surface inspection equipment, and more particularly to a sheet metal surface inspection equipment. Background Technology

[0002] In the roll forming process of stainless steel strip, the adjustment of the roll gap is a key link to ensure product quality and production efficiency. However, in actual operation, it is often encountered that the plate surface inspection equipment cannot quickly cooperate with the stainless steel strip output equipment to connect to the stainless steel strip, and cannot automatically adjust the roll gap in real time, which can easily affect production efficiency. In view of this, those skilled in the art urgently need to develop a new type of plate surface inspection equipment to meet the needs of practical applications. Utility Model Content

[0003] The main objective of this application is to provide a surface inspection device for sheet metal, which aims to solve the aforementioned technical problems.

[0004] A surface inspection device for sheet metal, comprising:

[0005] frame;

[0006] A conveyor belt, which is mounted on the frame, is used for conveying sheet metal;

[0007] The first visual inspection device is located at the rear of the frame, and its front end extends forward and is located on the upper side of the conveyor belt;

[0008] A flipping robot arm, located to the right of the first vision detection device, is used to grasp and flip the board material.

[0009] The handling robot is located on the front side of the frame, on the right front side of the flipping robot, and is used to grab the board after it has been flipped by the flipping robot and place the grabbed board onto the conveyor belt.

[0010] The second visual inspection device is located on the right side of the flipping robot and on the left rear side of the handling robot.

[0011] A non-conforming board unloading robot is located on the right front side of the frame and is used to unload non-conforming boards located on the conveyor belt.

[0012] As described above, the first visual inspection device for the sheet metal surface inspection equipment includes a connecting base frame and a lifting drive group located on the upper front side of the connecting base frame, as well as a camera inspection group located on the lifting drive group and driven by the lifting drive group to move up and down.

[0013] In the above-described sheet metal surface inspection equipment, the camera inspection group is a 3D camera.

[0014] As described above, the sheet metal surface inspection device includes a flipping manipulator comprising a horizontal drive group and a vertical drive group disposed on the horizontal drive group, a flipping drive group disposed on the vertical drive group, a longitudinal manipulator connected to the front side of the flipping drive group, and a pick-and-place suction cup group disposed on the lower front side of the longitudinal manipulator.

[0015] As described above, the non-conforming board surface inspection equipment includes a horizontal drive group, a rotary drive group located above the horizontal drive group, a vertical drive group located above the rotary drive group, a rear longitudinal robotic arm connected to the rear of the vertical drive group, and a discharging suction cup group located below the rear of the rear longitudinal robotic arm.

[0016] The sheet metal surface inspection equipment described above further includes a telescopic limiting device disposed on the frame and located on the upper side of the conveyor belt for telescopically limiting the sheet metal.

[0017] The sheet metal surface inspection equipment described above, wherein the telescopic limiting device includes:

[0018] Multiple front connecting brackets are provided and spaced apart along the transverse direction of the frame on the front side of the frame.

[0019] A front telescopic drive assembly is correspondingly disposed on each of the aforementioned front connecting brackets;

[0020] The front limit guide rail is located on the upper front side of the conveyor belt and is connected to the power output end of the front telescopic drive group. It is driven by the front telescopic drive group to move back and forth.

[0021] Multiple rear connecting brackets are provided and spaced apart at intervals along the lateral direction of the frame at the rear of the frame.

[0022] A rear telescopic drive assembly is correspondingly disposed on each of the rear connecting brackets;

[0023] The rear limiting guide rail is located on the upper rear side of the conveyor belt and is connected to the power output end of the rear telescopic drive group, and is driven by the rear telescopic drive group to move back and forth.

[0024] As described above, in the sheet metal surface inspection equipment, the front connecting bracket and the rear connecting bracket are symmetrically arranged front and rear; the front telescopic drive group and the rear telescopic drive group are symmetrically arranged front and rear; and the front limiting guide rail and the rear limiting guide rail are symmetrically arranged front and rear.

[0025] As described above, the sheet metal surface inspection device includes a front limiting guide rail connected to the front telescopic drive assembly, and a snap-fit ​​protective sleeve snapped onto the rear side of the front guiding guide rail.

[0026] Compared with the prior art, the above application has the following advantages:

[0027] This application's sheet metal surface inspection equipment utilizes a conveyor belt to transport stainless steel sheets. Through the coordinated operation of a first vision inspection device, a flipping robot, a handling robot, and a second vision inspection device, it achieves comprehensive inspection of both sides of the stainless steel sheets, as well as necessary flipping actions during the inspection process. If defects such as scratches or dents are found on the surface during inspection, the non-qualified sheet unloading robot will perform the unloading operation, thereby achieving the purpose of automated inspection and sorting of stainless steel sheets. This significantly improves the efficiency of stainless steel sheet inspection, ensures the pass rate of stainless steel sheet output, and also helps to reduce the production costs of enterprises. Attached Figure Description

[0028] Figure 1 This is a perspective view of the sheet metal surface inspection equipment of this application.

[0029] Figure 2 for Figure 1 Local magnification Figure I .

[0030] Figure 3 This is a partial view of the front limit guide rail described in the sheet metal surface inspection equipment of this application.

[0031] Figure 4 This is a perspective view of the first visual inspection device in the sheet metal surface inspection equipment of this application.

[0032] Figure 5 This is a perspective view of the flipping robot arm described in the sheet metal surface inspection equipment of this application.

[0033] Figure 6 This is a perspective view of the robotic arm used to unload non-conforming plates in the plate surface inspection equipment described in this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0037] like Figures 1 to 6 As shown, a sheet metal surface inspection device includes a frame 1, a conveyor belt 2, a first vision inspection device 3, a flipping robot 4, a handling robot 5, a second vision inspection device 6, and a non-conforming sheet metal unloading robot 7.

[0038] Specifically, the conveyor belt 2 is mounted on the frame 1 for conveying sheet metal; the sheet metal is stainless steel; the first visual inspection device 3 is located on the rear side of the frame 1, with its front end extending forward and positioned above the conveyor belt 2; the flipping robot 4 is located to the right of the first visual inspection device 3 for gripping and flipping the sheet metal; the handling robot 5 is located on the front side of the frame 1, to the right front side of the flipping robot 4, for gripping the sheet metal after it has been flipped by the flipping robot 4, and placing the gripped sheet metal onto the conveyor belt 2; the second visual inspection device 6 is located to the right of the flipping robot 4, to the left rear side of the handling robot 5; the non-conforming sheet metal unloading robot 7 is located to the right front side of the frame 1 for unloading non-conforming sheet metal located on the conveyor belt 2.

[0039] This application's sheet metal surface inspection equipment utilizes a conveyor belt 2 to transport stainless steel sheets. Through the coordinated operation of a first vision inspection device 3, a flipping robot 4, a handling robot 5, and a second vision inspection device 6, it achieves comprehensive inspection of both sides of the stainless steel sheets, as well as necessary flipping actions during the inspection process. If defects such as scratches or dents are found on the surface during inspection, the non-conforming sheet unloading robot 7 will perform an unloading operation, thereby achieving automated inspection and sorting of stainless steel sheets. This significantly improves the efficiency of stainless steel sheet inspection, ensures the pass rate of stainless steel sheet output, and also helps reduce the production costs of enterprises.

[0040] Furthermore, the first visual inspection device 3 includes a connecting base 31 and a lifting drive group 32 disposed on the upper front side of the connecting base 31, and a camera inspection group 33 disposed on the lifting drive group 32 and driven by the lifting drive group 32 to move up and down.

[0041] This application provides stable support for the entire device through the connecting base frame 31, ensuring stability during the detection process; while the use of the lifting drive group 32 allows the camera detection group 33 to move up and down flexibly, thereby adapting to the detection needs of different heights and positions.

[0042] The camera inspection group 33 is preferably a 3D camera, capable of capturing the three-dimensional information of the target object and providing richer visual data than traditional two-dimensional cameras. This three-dimensional visual inspection capability enables the device to perform more precise size measurements, surface defect detection, and spatial position analysis. The use of a 3D camera improves the accuracy and reliability of the inspection.

[0043] Furthermore, the flipping manipulator 4 includes a horizontal drive group 41, a vertical drive group 42 mounted on the horizontal drive group 41, a flipping drive group 43 mounted on the vertical drive group 42, a longitudinal manipulator 44 connected to the front of the flipping drive group 43, and a pick-and-place suction cup group 45 located on the lower front side of the longitudinal manipulator 44. The pick-and-place suction cup group 45 is equipped with multiple suction cups that can be connected to an external air source. Its advantage is that it can both move and grasp stainless steel plates, and can also flip the stainless steel plates through the flipping drive group 43 to prepare for the inspection of the other side of the stainless steel plates.

[0044] Furthermore, the only difference between the transport robot 5 and the flipping robot 4 is that the latter lacks the flipping drive group 43, so it will not be described in detail here.

[0045] The second visual inspection device 6 has the same structure and working principle as the first visual inspection device 3, so it will not be described again.

[0046] Furthermore, the non-conforming sheet metal unloading robot 7 includes a horizontal drive group 71, a rotary drive group 72 located on the upper side of the horizontal drive group 71, a vertical drive group 73 located on the upper side of the rotary drive group 72, a rear longitudinal robot arm 74 connected to the rear side of the vertical drive group 73, and an unloading suction cup group 75 located on the lower rear side of the rear longitudinal robot arm 74.

[0047] The non-conforming sheet metal unloading robot 7 described in this application achieves precise unloading of non-conforming stainless steel sheets through the coordinated operation of the horizontal drive group 71, the rotary drive group 72, the vertical drive group 73, the rear longitudinal robot arm 74, and the unloading suction cup group 75. During this process, the angle can be adjusted through the rotary drive group 72 to adapt to the unloading requirements of stainless steel sheets in different directions, avoiding interference with qualified sheets and interruption of the production line. This not only reduces manual intervention but also improves production efficiency, while ensuring the continuity of the production process and the control of stainless steel sheet quality.

[0048] Furthermore, the sheet material surface inspection equipment also includes a telescopic limiting device 8, which is mounted on the frame 1 and located on the upper side of the conveyor belt 2 for telescopically limiting the sheet material.

[0049] The telescopic limiting device 8 includes a front connecting bracket 81, a front telescopic drive group 82, a front limiting guide rail 83, a rear connecting bracket 84, a rear telescopic drive group 85, and a rear limiting guide rail 86.

[0050] There are multiple front connecting brackets 81, which are spaced apart along the lateral direction of the frame 1 on the front side of the frame 1; the front telescopic drive group 82 is correspondingly disposed on each of the front connecting brackets 81; the front limiting guide rail 83 is disposed on the upper front side of the conveyor belt 2 and is connected to the power output end of the front telescopic drive group 82, and is driven by the front telescopic drive group 82 to telescopically move back and forth; there are multiple rear connecting brackets 84, which are spaced apart along the lateral direction of the frame 1 on the rear side of the frame 1; the rear telescopic drive group 85 is correspondingly disposed on each of the rear connecting brackets 84; the rear limiting guide rail 86 is disposed on the upper rear side of the conveyor belt 2 and is connected to the power output end of the rear telescopic drive group 85, and is driven by the rear telescopic drive group 85 to telescopically move back and forth.

[0051] The front connecting bracket 81 and the rear connecting bracket 84 are symmetrically arranged front and rear; the front telescopic drive group 82 and the rear telescopic drive group 85 are symmetrically arranged front and rear; the front limiting guide rail 83 and the rear limiting guide rail 86 are symmetrically arranged front and rear.

[0052] The telescopic limiting device 8 of this application, through the coordinated work of the front connecting bracket 81, the front telescopic drive group 82, the front limiting guide rail 83, the rear connecting bracket 84, the rear telescopic drive group 85, and the rear limiting guide rail 86, can realize automatic limiting guide channels that move towards each other or away from each other, thereby meeting the limiting and guiding needs of stainless steel plates of different widths.

[0053] Furthermore, the front limiting guide rail 83 includes a front main guide rail 831 connected to the front telescopic drive assembly 82, and a snap-fit ​​protective sleeve 832 snapped onto the rear side of the front main guide rail 831. The inner surface of the snap-fit ​​protective sleeve 832 is a smooth surface, which has the advantage of preventing damage to the stainless steel sheet.

[0054] The above description is one implementation method provided in conjunction with specific content, and does not imply that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to or identical to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A board surface inspection apparatus comprising a frame (1) and a conveyor belt (2) arranged on the frame (1) for conveying a board, characterized in that: The plate surface inspection equipment also includes: The first visual inspection device (3) is located on the rear side of the frame (1), and its front end extends forward and is located on the upper side of the conveyor belt (2); A flipping robot (4) is located to the right of the first vision detection device (3) and is used to grab the board and flip the board. The handling robot (5) is located on the front side of the frame (1) and on the right front side of the flipping robot (4). It is used to grab the plate after it has been flipped by the flipping robot (4) and place the grabbed plate on the conveyor belt (2). The second visual inspection device (6) is located on the right side of the flipping robot (4) and on the left rear side of the handling robot (5); The non-conforming board unloading robot (7) is located on the right front side of the frame (1) and is used to unload non-conforming boards located on the conveyor belt (2); The plate surface inspection equipment also includes a telescopic limiting device (8) disposed on the frame (1) and located on the upper side of the conveyor belt (2) for telescopically limiting the plate. The telescopic limiting device (8) includes: There are multiple front connecting brackets (81), which are spaced apart along the transverse direction of the frame (1) on the front side of the frame (1); A front telescopic drive assembly (82) is correspondingly disposed on each of the aforementioned front connecting brackets (81); The front limit guide rail (83) is located on the upper front side of the conveyor belt (2) and is connected to the power output end of the front telescopic drive group (82), and is driven by the front telescopic drive group (82) to move back and forth. There are multiple rear connecting brackets (84), which are spaced apart along the lateral direction of the frame (1) on the rear side of the frame (1); A rear telescopic drive assembly (85) is correspondingly disposed on each of the rear connecting brackets (84); The rear limiting guide rail (86) is located on the upper rear side of the conveyor belt (2) and is connected to the power output end of the rear telescopic drive group (85), and is driven by the rear telescopic drive group (85) to move back and forth. The front connecting bracket (81) and the rear connecting bracket (84) are arranged symmetrically front to back; the front telescopic drive group (82) and the rear telescopic drive group (85) are arranged symmetrically front to back; the front limiting guide rail (83) and the rear limiting guide rail (86) are arranged symmetrically front to back; The front limiting guide rail (83) includes a front main guide rail (831) connected to the front telescopic drive group (82), and a snap-fit ​​protective sleeve (832) snapped onto the rear side of the front main guide rail (831).

2. The board surface inspection apparatus according to claim 1, characterized by The first visual inspection device (3) includes a connecting base frame (31) and a lifting drive group (32) located on the upper front side of the connecting base frame (31), and a camera inspection group (33) located on the lifting drive group (32) and driven by the lifting drive group (32) to move up and down.

3. The board surface inspection apparatus according to claim 2, characterized by The camera detection group (33) is a 3D camera.

4. The board surface inspection apparatus according to claim 1, characterized by The flipping manipulator (4) includes a horizontal drive group (41) and a vertical drive group (42) disposed on the horizontal drive group (41), a flipping drive group (43) disposed on the vertical drive group (42), a longitudinal manipulator (44) connected to the front side of the flipping drive group (43), and a pick-and-place suction cup group (45) disposed on the lower front side of the longitudinal manipulator (44).

5. The board surface inspection apparatus according to claim 1, characterized by The non-conforming sheet metal unloading robot (7) includes a horizontal drive group (71), a rotary drive group (72) located on the upper side of the horizontal drive group (71), a vertical drive group (73) located on the upper side of the rotary drive group (72), a rear longitudinal robot arm (74) connected to the rear side of the vertical drive group (73), and an unloading suction cup group (75) located on the lower rear side of the rear longitudinal robot arm (74).