Sheet metal part visual inspection equipment

Abstract

The utility model discloses visual detection equipment for sheet metal parts, which comprises a conveying table, a mounting frame and a visual detection mechanism, the mounting frame is arranged above the conveying table, and the visual detection mechanism is arranged on the mounting frame; wherein the visual inspection mechanism comprises a rotary driver, a mounting frame, a first camera, a second camera and an adjusting assembly, the rotary driver is vertically arranged on the mounting frame, an output shaft of the rotary driver extends to the position over the conveying table through the mounting frame, and the middle part of the mounting frame is fixed to the output end of the rotary driver; a first camera is arranged in the middle of the mounting frame, and second cameras are arranged at the two ends of the mounting frame respectively. The defect that a visual detection mechanism of the device can only detect one face of a metal plate workpiece, and the screening quality of the metal plate workpiece cannot be ensured is overcome. Therefore, the visual detection equipment for the sheet metal part can be used for detecting multiple surfaces of the sheet metal workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal process appearance detection, in particular to a sheet metal parts visual detection device. Background Art

[0002] The existing sheet metal process still relies mainly on manual visual inspection during the production process. The object is placed under the light, turned over manually, and inspected by naked eye. This method is time-consuming and labor-intensive, and the detection accuracy is not high. The pace is too slow and the labor intensity is high. Some use visual inspection systems to replace human eyes for measurement and judgment. The visual inspection system uses industrial cameras to replace human eyes to complete functions such as recognition, measurement, and positioning. The general visual inspection system is composed of a camera, lens, and light source. It can replace manual inspections of barcode characters, cracks, packaging, whether the surface layer is complete, and depressions. The use of a visual inspection system can effectively improve the inspection speed and accuracy of the production line, greatly improve output and quality, reduce labor costs, and prevent misjudgments due to eye fatigue.

[0003] Chinese patent application number CN115494073A discloses a sheet metal appearance inspection device based on machine vision. The device is provided with an inspection and transportation device. As the workpiece is transported to the conveyor belt by the conveyor belt, the rotation of the second motor output shaft drives the rotating shaft to rotate, the rotation of the rotating shaft drives the pulley to rotate, and the rotation of the pulley drives the conveyor belt to rotate, thereby driving the workpiece to be transported forward. When the second inductive limit switch senses the workpiece, the second motor is controlled to stop running, and then the piston rod of the second hydraulic cylinder is extended to drive the support plate to cross the conveyor belt and drive the workpiece to move up, and then the appearance inspection machine inspects the appearance of the workpiece, and the inspection result is displayed on the display screen. After the inspection, the piston rod of the second hydraulic cylinder is retracted and reset to drive the support plate to put the workpiece back on the conveyor belt. After the second inductive limit switch expires, the second motor is controlled to restart, so as to achieve the effect of facilitating the inspection and transportation of the workpiece.

[0004] The applicant discovered the following technical problems when implementing the above technical solution:

[0005] The visual inspection mechanism of the device can only inspect one side of the sheet metal workpiece and cannot ensure the screening quality of the sheet metal workpiece.

[0006] Therefore, providing a sheet metal parts visual inspection device that can inspect multiple sides of sheet metal workpieces is an urgent problem to be solved by the present invention. Utility Model Content

[0007] In view of the above technical problems, the purpose of the utility model is to overcome the problem that the visual inspection mechanism of the device in the prior art can only inspect one side of the sheet metal workpiece and cannot ensure the screening quality of the sheet metal workpiece, thereby providing a sheet metal parts visual inspection device that can inspect multiple sides of the sheet metal workpiece.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a visual inspection device for sheet metal parts, the device comprising: a conveyor platform, a mounting frame and a visual inspection mechanism, the mounting frame is arranged above the conveyor platform, and the visual inspection mechanism is arranged on the mounting frame; wherein, the visual inspection mechanism comprises: a rotary driver, a mounting frame, a first camera, a second camera and an adjustment component, the rotary driver is vertically arranged on the mounting frame, and its output shaft extends to directly above the conveyor platform through the mounting frame, the middle part of the mounting frame is fixed to the output end of the rotary driver, the first camera is arranged in the middle of the mounting frame, and the second cameras are arranged at both ends, and the two ends of the mounting frame are also respectively provided with adjustment components for adjusting the shooting angle of the second camera.

[0009] Preferably, the adjustment component includes: a linear drive and an adjustment rod, one side of the upper surface of the second camera is hinged to one end of the mounting frame, the adjustment rod is fixed to the output end of the linear drive, and the end of the adjustment rod away from the adjustment rod is hinged to one end of the mounting frame, the end of the adjustment rod away from the linear drive is hinged to the upper surface of the second camera, and the shooting angle of the second camera can be adjusted by extending and retracting the linear drive.

[0010] Preferably, limiting frames are respectively arranged on opposite sides of the mounting frame, and a moving frame is respectively arranged in each limiting frame, and a driving component for driving each moving frame to reciprocate along the length direction of the limiting frame is arranged inside the middle part of the mounting frame, and the second camera is arranged at the end of the moving frame away from the first camera, and the adjustment component is arranged at the end of the moving frame away from the first camera to adjust the shooting angle of the second camera.

[0011] Preferably, the adjustment component includes: a linear drive and an adjustment rod, each of the movable frames is hinged to one side of the upper surface of the second camera at one end away from the drive component, the adjustment rod is fixed to the output end of the linear drive, and the end away from the adjustment rod is hinged to one end of the movable frame, the end of the adjustment rod away from the linear drive is hinged to the upper surface of the second camera, and the shooting angle of the second camera can be adjusted by extending and retracting the linear drive.

[0012] Preferably, the driving assembly includes: a dual-axis motor and a screw rod, the dual-axis motor is arranged inside the middle part of the mounting frame, and its two relative output ends are coaxially fixed with screw rods, each of the screw rods is threaded through the corresponding movable frame, and is rotatably arranged on a limit frame, and the limit frame can limit the rotation of the movable frame.

[0013] Preferably, the conveying platform is provided with an in-place sensing device connected to the signal of the visual detection mechanism for identifying the model of the incoming material.

[0014] Preferably, the side wall of the mounting frame is provided with a display connected to the visual detection mechanism signal.

[0015] Preferably, the first camera has a counting function.

[0016] According to the above technical scheme, the beneficial effects of the utility model compared with the prior art are: the present application places the sheet metal parts on the conveyor table, and then when passing under the mounting frame, the visual inspection mechanism will detect and screen the model parameters of the sheet metal parts; specifically, by starting the rotary drive to drive the mounting frame to rotate, thereby driving the first camera and the second camera to rotate, and at the same time the adjustment component will adjust the camera angle of the second camera to achieve multi-faceted inspection of the sheet metal parts on the conveyor table.

[0017] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode; and the parts not involved in the utility model are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 It is a stereoscopic diagram of a sheet metal parts visual inspection device provided in a preferred embodiment of the utility model.

[0020] Figure 2 It is a plan view of a sheet metal parts visual inspection device provided in a preferred embodiment of the utility model.

[0021] Figure 3 It is a partial stereoscopic view of a sheet metal parts visual inspection device provided in a preferred embodiment of the utility model. Figure 1 .

[0022] Figure 4 It is a planar cross-sectional view of a sheet metal parts visual inspection device provided in a preferred embodiment of the utility model.

[0023] Explanation of the reference numerals: 1- conveying platform; 101- in-position sensing device; 2- mounting frame; 3- visual detection mechanism; 301- rotating drive; 302- mounting frame; 30201- limiting frame; 303- first camera; 304- second camera; 305- adjusting assembly; 30501- linear drive; 30502- adjusting rod; 306- moving frame; 307- driving assembly; 30701- dual-axis motor; 30702- lead screw; 4- display. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, if the terms "first", "second", "third" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] Reference Figure 1-Figure 2: A visual inspection device for sheet metal parts, the device comprises: a conveying platform 1, a mounting frame 2 and a visual inspection mechanism 3, wherein the mounting frame 2 is arranged above a part of the conveying platform 1, and the visual inspection mechanism 3 is arranged on the mounting frame 2; wherein the visual inspection mechanism 3 comprises: a rotating driver 301, a mounting frame 302, a first camera 303, a second camera 304 and an adjustment component 305, wherein the rotating driver 301 is vertically arranged on the mounting frame 2, and its output shaft extends to the top of the conveying platform 1 through the mounting frame 2, the middle part of the mounting frame 302 is fixed to the output end of the rotating driver 301, the first camera 303 is arranged in the middle of the mounting frame 302, and the second cameras 304 are respectively arranged at both ends, and the two ends of the mounting frame 302 are also respectively provided with adjustment components 305 for adjusting the shooting angle of the second camera 304.

[0029] In the present application, the sheet metal parts are placed on the conveyor platform 1, and then when passing under the mounting frame 2, the visual inspection mechanism 3 will inspect and screen the model parameters of the sheet metal parts; specifically, the rotary driver 301 is started to drive the mounting frame 302 to rotate, thereby driving the first camera 303 and the second camera 304 to rotate, and at the same time the adjustment component 305 will adjust the camera angle of the second camera 304 to achieve multi-faceted inspection of the sheet metal parts on the conveyor platform 1.

[0030] The adjustment component 305 includes: a linear driver 30501 and an adjustment rod 30502. One side of the upper surface of the second camera 304 is hinged to one end of the mounting frame 302. The adjustment rod 30502 is fixed to the output end of the linear driver 30501, and the end away from the adjustment rod 30502 is hinged to one end of the mounting frame 302. The end of the adjustment rod 30502 away from the linear driver 30501 is hinged to the upper surface of the second camera 304, and the shooting angle of the second camera 304 can be adjusted by extending and retracting the linear driver 30501.

[0031] In the present application, the linear actuator 30501 is activated to drive the second camera 304 to rotate around its hinged side through the adjustment rod 30502, thereby adjusting its camera angle. This embodiment is not shown in the figure.

[0032] Reference Figure 2 and Figure 3: Limiting frames 30201 are respectively arranged on two opposite sides of the mounting frame 302, and a moving frame 306 is respectively arranged in each limiting frame 30201. A driving component 307 for driving each moving frame 306 to reciprocate along the length direction of the limiting frame 30201 is arranged inside the middle part of the mounting frame 302. The second camera 304 is arranged at one end of the moving frame 306 away from the first camera 303, and the adjusting component 305 is arranged at one end of the moving frame 306 away from the first camera 303, so as to adjust the shooting angle of the second camera 304.

[0033] The present application starts the driving assembly 307 to drive each movable frame 306 to move toward each other, thereby adjusting the distance between each second camera 304 to adapt to the conveying platform 1 of different widths.

[0034] Reference Figure 3 The adjustment component 305 includes: a linear drive 30501 and an adjustment rod 30502, and each of the movable frames 306 is hinged to one side of the upper surface of the second camera 304 at one end away from the driving component 307, and the adjustment rod 30502 is fixed to the output end of the linear drive 30501, and the end away from the adjustment rod 30502 is hinged to one end of the movable frame 306, and the end of the adjustment rod 30502 away from the linear drive 30501 is hinged to the upper surface of the second camera 304, and the shooting angle of the second camera 304 can be adjusted by extending and retracting the linear drive 30501.

[0035] The present application starts the linear drive 30501 to drive the second camera 304 to rotate around its hinged side through the adjustment rod 30502, thereby adjusting its camera angle. In this way, on the basis of adapting to conveyor platforms 1 of different widths, it also adds the function of being able to perform multi-faceted inspection of sheet metal parts.

[0036] Reference Figure 4 The driving assembly 307 includes: a dual-axis motor 30701 and a screw rod 30702. The dual-axis motor 30701 is arranged inside the middle part of the mounting frame 302, and its two relative output ends are coaxially fixed with screw rods 30702 respectively. Each screw rod 30702 is threaded through the corresponding moving frame 306 and is rotatably arranged on the limit frame 30201. The limit frame 30201 can limit the rotation of the moving frame 306.

[0037] In the present application, by starting the dual-axis motor 30701, since the limit frame 30201 can limit the rotation of the movable frame 306, each movable frame 306 is driven to move toward each other through the screw rod 30702 to adapt to the conveying platform 1 of different widths.

[0038] Reference Figure 2The conveying platform 1 is provided with an in-position sensing device 101 which is connected to the visual detection mechanism 3 by signal so as to identify the incoming material model.

[0039] The present application is capable of identifying the model of the sheet metal parts conveyed by the conveyor table 1 by setting up an in-place sensing device 101, and transmitting the information to the visual inspection mechanism 3. Then the visual inspection mechanism 3 will load the inspection parameters, and then perform photo inspection through the first camera 303 and the second camera 304.

[0040] Reference Figure 1 : The side wall of the mounting frame 2 is provided with a display 4 which is signal-connected to the visual detection mechanism 3.

[0041] The display 4 of the present application is used to output the detection information of the visual detection mechanism 3 and other information.

[0042] The first camera 303 has a counting function.

[0043] The first camera 303 of the present application has a counting function, which can count the number of qualified and unqualified sheet metal parts.

[0044] When the device provided by the utility model is in use, the present application places the sheet metal parts on the conveyor platform 1, and then when the sheet metal parts pass under the mounting frame 2, the visual inspection mechanism 3 will detect and screen the model parameters of the sheet metal parts; specifically, by starting the rotary driver 301 to drive the mounting frame 302 to rotate, thereby driving the first camera 303 and the second camera 304 to rotate, and at the same time the adjustment component 305 will adjust the camera angle of the second camera 304 to realize the multi-faceted inspection of the sheet metal parts on the conveyor platform 1.

[0045] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0046] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0047] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A sheet metal parts visual inspection device, characterized in that: The device comprises: a conveying platform (1), a mounting frame (2) and a visual inspection mechanism (3), wherein the mounting frame (2) is arranged above a portion of the conveying platform (1), and the visual inspection mechanism (3) is arranged on the mounting frame (2); wherein: The visual detection mechanism (3) comprises: a rotation driver (301), a mounting frame (302), a first camera (303), a second camera (304) and an adjustment component (305); the rotation driver (301) is vertically arranged on the mounting frame (2), and its output shaft extends through the mounting frame (2) to the top of the conveying platform (1); the middle part of the mounting frame (302) is fixed to the output end of the rotation driver (301); the first camera (303) is arranged in the middle of the mounting frame (302), and the second cameras (304) are respectively arranged at both ends; and the adjustment components (305) for adjusting the shooting angle of the second camera (304) are also respectively arranged at both ends of the mounting frame (302).

2. A sheet metal parts visual inspection device according to claim 1, characterized in that: The adjustment component (305) comprises: a linear drive (30501) and an adjustment rod (30502); one side of the upper surface of the second camera (304) is hinged to one end of the mounting frame (302); the adjustment rod (30502) is fixed to the output end of the linear drive (30501), and the end thereof away from the adjustment rod (30502) is hinged to one end of the mounting frame (302); the end of the adjustment rod (30502) away from the linear drive (30501) is hinged to the upper surface of the second camera (304), and the shooting angle of the second camera (304) can be adjusted by extending and retracting the linear drive (30501).

3. The sheet metal parts visual inspection equipment according to claim 1, characterized in that: The mounting frame (302) is provided with limiting frames (30201) on opposite sides thereof, each limiting frame (30201) is provided with a moving frame (306) therein, a driving assembly (307) for driving each moving frame (306) to reciprocate along the length direction of the limiting frame (30201) is provided inside the middle part of the mounting frame (302), the second camera (304) is provided at one end of the moving frame (306) away from the first camera (303), and the adjusting assembly (305) is provided at one end of the moving frame (306) away from the first camera (303) to adjust the shooting angle of the second camera (304).

4. The sheet metal parts visual inspection equipment according to claim 3, characterized in that: The adjustment component (305) comprises: a linear drive (30501) and an adjustment rod (30502); one end of each movable frame (306) away from the drive component (307) is hinged to one side of the upper surface of the second camera (304); the output end of the linear drive (30501) is fixed with an adjustment rod (30502), and the end of the adjustment rod (30502) away from the adjustment rod (30502) is hinged to one end of the movable frame (306); the end of the adjustment rod (30502) away from the linear drive (30501) is hinged to the upper surface of the second camera (304), and the shooting angle of the second camera (304) can be adjusted by extending and retracting the linear drive (30501).

5. The sheet metal parts visual inspection equipment according to claim 3, characterized in that: The driving assembly (307) comprises: a dual-axis motor (30701) and a screw rod (30702); the dual-axis motor (30701) is arranged inside the middle part of the mounting frame (302), and the two opposite output ends thereof are coaxially fixed with screw rods (30702), each of the screw rods (30702) is threadedly passed through the corresponding moving frame (306), and is rotatably arranged on a limiting frame (30201), and the limiting frame (30201) can limit the rotation of the moving frame (306).

6. The sheet metal parts visual inspection equipment according to claim 1, characterized in that: The conveying platform (1) is provided with an in-position sensing device (101) connected to the visual detection mechanism (3) by signal, so as to identify the type of incoming materials.

7. The sheet metal parts visual inspection equipment according to claim 1, characterized in that: The side wall of the installation frame (2) is provided with a display (4) which is signal-connected to the visual detection mechanism (3).

8. The sheet metal parts visual inspection equipment according to claim 1, characterized in that: The first camera (303) has a counting function.

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