A visual appearance inspection device for magnesium alloy screen components

Abstract

The present invention relates to the technical field of detection equipment, and discloses a visual appearance detection equipment for magnesium alloy screen parts, which comprises a detection cabinet, a detection mechanism, a conveying device, a loading piece and an auxiliary part, wherein the detection mechanism is arranged in the detection cabinet, the detection mechanism is used for appearance detection of the magnesium alloy screen parts, the conveying device is arranged at one side of the detection cabinet, the conveying device is used for conveying the magnesium alloy screen parts toward the detection cabinet, the loading piece is arranged at the same side as the conveying device, and the loading piece is used for sending the magnesium alloy screen parts conveyed by the conveying device to the detection cabinet for detection; the present invention effectively solves the problem that the existing visual appearance detection equipment needs to manually turn over the magnesium alloy screen parts when detecting the other side after completing the detection of one side of the magnesium alloy screen parts, which undoubtedly limits the improvement of detection efficiency, and is too dependent on manual operation, resulting in high cost, slow speed, easy errors and other problems.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a visual appearance detection equipment for a magnesium alloy screen part. Background Art

[0002] In the modern manufacturing industry, magnesium alloy screen parts are key components with high performance and light weight, and are widely used in many fields such as consumer electronics, aerospace, and the automotive industry. Their appearance quality is not only directly related to the aesthetics of the product, but also directly affects the product's service life and user experience. Therefore, it is particularly important to conduct efficient and accurate visual appearance inspection of magnesium alloy screen parts. In the manufacturing process of magnesium alloy screen parts, appearance quality inspection is a key link to ensure product quality and end-user satisfaction.

[0003] When the magnesium alloy screen parts are being inspected, they are placed on the visual appearance inspection equipment. After the visual appearance inspection equipment completes the inspection on one side of the magnesium alloy screen parts, it needs to be manually turned over when inspecting the other side. This undoubtedly limits the improvement of inspection efficiency and is too dependent on manual operation, with disadvantages such as high cost, slow speed, and easy errors. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing visual appearance inspection equipment mentioned in the above background technology needs to manually turn over the magnesium alloy screen part when inspecting the other side after completing the inspection on one side. This undoubtedly limits the improvement of inspection efficiency and is too dependent on manual operation, resulting in high cost, slow speed, and easy errors.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A magnesium alloy screen component visual appearance inspection device, comprising an inspection cabinet, an inspection mechanism, a conveying device 1, a loading member and an auxiliary member, wherein the inspection mechanism is arranged in the inspection cabinet, and the inspection mechanism is used for appearance inspection of the magnesium alloy screen component, the conveying device 1 is arranged at one side of the inspection cabinet, and the conveying device 1 is used for conveying the magnesium alloy screen component toward the inspection cabinet, the loading member is arranged at the same side as the conveying device 1, and the loading member is used for delivering the magnesium alloy screen component conveyed by the conveying device 1 to the inspection cabinet for inspection, the auxiliary member is arranged in front of the inspection cabinet, and the auxiliary member is used for automatic turning over of the magnesium alloy screen component and automatic unloading after the inspection is completed, a conveying device 2 is arranged below the auxiliary member, and the magnesium alloy screen component that has been inspected and removed by the auxiliary member can be placed on the conveying device 2 for transportation, and both the conveying device 1 and the conveying device 2 can be belt conveyors when in use.

[0007] Preferably, the detection cabinet is provided with two toolings for placing the magnesium alloy screen component, and the two toolings are respectively used for placing the front side and the back side of the magnesium alloy screen component. The tooling for placing the front side of the magnesium alloy screen component is located on the detection cabinet close to the inner side, and the tooling for placing the back side of the magnesium alloy screen component is located on the detection cabinet close to the outer side.

[0008] Preferably, the conveying device 1 includes a bracket 1, a linear motor 1 is provided on the bracket 1, a connecting frame plate 1 is provided on the linear motor 1, a lifting device 1 is provided at one end of the connecting frame plate 1 close to the detection cabinet, and a suction cup gripper 1 is provided on the lifting device 1 for grabbing the magnesium alloy screen part on the conveying device 1. The lifting device 1 and the lifting device 2 can be linear motors in actual use, and the lifting and lowering movement of the suction cup gripper 1 can be controlled by the lifting device 1.

[0009] Preferably, the auxiliary part includes a positioning frame, a moving part for driving the positioning frame to move is provided on the positioning frame, a connecting plate and a connecting rod are provided on the positioning frame, a suction cup gripper 2 is provided on the end of the connecting plate away from the positioning frame, and a suction cup gripper 3 is provided on the end of the connecting rod away from the positioning frame, and the magnesium alloy screen part after the front side inspection can be removed by the suction cup gripper 3, and the removed magnesium alloy screen part can be flipped over by the auxiliary part, so that the inspection mechanism can perform appearance inspection on the back side of the magnesium alloy screen part.

[0010] Preferably, the moving part includes a bracket two, on which a linear motor two is provided, on which a connecting frame plate two is provided, and on which an end of the connecting frame plate two close to the detection cabinet is provided with a lifting device two, and the lifting device two is connected to the positioning frame, and the moving part can drive the auxiliary part as a whole to move in various directions.

[0011] Preferably, the positioning frame is provided with a connecting end one and a connecting end two, the connecting rod is rotatably arranged on the connecting end one, the connecting end two is provided with a driving member for driving the connecting rod to rotate, the connecting plate is arranged on the connecting end two, and the positioning frame is also provided with a grabbing member for grabbing the turned-over magnesium alloy screen member.

[0012] Preferably, the driving member includes a motor, a rotating rod and a transmission assembly, a bevel gear group is provided on the output shaft of the motor, the motor is transmission-connected to the rotating rod via the bevel gear group, the transmission assembly is arranged on the rotating rod and the connecting rod, the rotating rod is transmission-connected to the connecting rod via the transmission assembly, the bevel gear group is composed of two bevel gears when in use, and the two bevel gears are respectively arranged on the output shaft of the motor and the rotating rod, so that the output shaft of the motor can synchronously drive the rotating rod to rotate when it rotates, and the transmission assembly is composed of two synchronous pulleys and one synchronous belt when in use, the synchronous belt sleeve is arranged on the two synchronous pulleys, and the two synchronous pulleys are respectively arranged on the connecting rod and the rotating rod, so that the rotating rod synchronously drives the connecting rod to rotate when it rotates, and then can drive the suction cup gripper three to rotate, so that the magnesium alloy screen part on the suction cup gripper three is rotated and flipped.

[0013] Preferably, the grabbing member includes a movable frame and a guide plate, the guide plate is provided with a guide hole, the movable frame is provided with an extension plate, the extension plate is provided with a guide block, the guide block is located in the guide hole, the movable frame is provided with a positioning end, the positioning end is provided with a suction cup gripper four for grabbing the turned-over magnesium alloy screen member, and the guide hole is divided into an inclined end and a vertical end connected to the inclined end when opened, so that the suction cup gripper four moves until it is aligned with the suction cup gripper three up and down, and then moves downward, so that the suction cup gripper four can grab the magnesium alloy screen member turned over on the suction cup gripper three.

[0014] Preferably, the grabbing member also includes a cylinder that pushes the moving frame to move, a limit block is provided on the output shaft of the cylinder, two limit plates are provided on the moving frame, and limit holes are provided on the limit plates. The limit block is provided with limit ends at the upper and lower parts, and the limit block is located between the two limit plates, and the upper and lower limit ends are respectively located in the limit holes of the two limit plates. When the output shaft of the cylinder drives the limit block to move up and down, the limit block can drive the moving frame to move through the limit plate, and when the moving frame is tilted through the guide hole, the moving frame can be limited and moved through the limit block, so that the moving frame can stably move tilted downward or tilted upward.

[0015] Preferably, the guide plate is arranged on the positioning frame, the positioning frame is provided with a fixed end, the cylinder is fixed on the fixed end, a fixing plate is provided on the second connecting end of the positioning frame, the motor is fixed on the fixing plate, the motor is fixedly installed through the fixing plate, the cylinder is fixedly installed through the fixed end, and the guide plate is fixedly installed on the positioning frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can automatically place the magnesium alloy screen part on the tooling in the inspection cabinet for appearance inspection by means of the provided loading part and the conveying device. When the magnesium alloy screen part completes the appearance inspection of the front side, the provided auxiliary part can automatically turn it over without manual turning operation, thereby greatly shortening the inspection cycle, improving the inspection efficiency, and reducing the labor cost.

[0018] When the magnesium alloy screen part is turned over and placed on another tooling, the loading part can load the next magnesium alloy screen part, so that the inspection agency can directly perform appearance inspection on the front and back sides of the two magnesium alloy screen parts during the next inspection, effectively improving the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a structural view of a loading part of the present invention;

[0022] Figure 3 This is a structural view of the auxiliary component of the present invention;

[0023] Figure 4 It is a structural view of the moving part of the present invention;

[0024] Figure 5 This is a view showing the separation of the grabbing member and the positioning frame of the present invention;

[0025] Figure 6 This is a view showing the connection rod and the positioning frame being separated from each other according to the present invention;

[0026] Figure 7 A structural view of a driving member of the present invention;

[0027] Figure 8 A structural view of a grabbing member of the present invention;

[0028] Fig. 9 This is a structural view of the limit block of the present invention.

[0029] Description of the figure numbers: 1. Detection cabinet; 2. Detection mechanism; 3. Loading parts; 31. Linear motor 1; 32. Connecting frame 1; 33. Lifting device 1; 34. Suction cup gripper 1;

[0030] 4. Auxiliary parts; 41. Moving parts; 411. Linear motor 2; 412. Connecting frame 2; 413. Lifting device 2; 42. Positioning frame; 421. Connecting end 1; 422. Connecting end 2; 423. Fixed end; 424. Fixed plate; 425. Connecting plate; 43. Suction cup gripper 2;

[0031] 44. driving member; 441. motor; 442. bevel gear set; 443. rotating rod; 444. transmission assembly;

[0032] 45. Connecting rod; 46. Suction cup gripper three; 47. Grabbing piece; 471. Guide plate; 4711. Guide hole; 472. Moving frame; 4721. Extension plate; 4722. Positioning end; 473. Suction cup gripper four; 474. Guide block; 475. Limit plate; 4751. Limit hole; 476. Cylinder; 477. Limit block; 4771. Limit end; 5. Conveying equipment one; 6. Conveying equipment two. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below with reference to the accompanying drawings.

[0034] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0035] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0036] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0037] See also Figure 1-Figure 9A magnesium alloy screen visual appearance inspection device, comprising an inspection cabinet 1, an inspection mechanism 2, a conveying device 5, a loading piece 3 and an auxiliary piece 4, wherein the inspection mechanism 2 is arranged in the inspection cabinet 1, and the inspection mechanism 2 is used for the appearance inspection of the magnesium alloy screen, the conveying device 5 is arranged at one side of the inspection cabinet 1, and the conveying device 5 is used for conveying the magnesium alloy screen toward the inspection cabinet 1, the loading piece 3 is arranged at the same side as the conveying device 5, and the loading piece 3 is used for delivering the magnesium alloy screen conveyed by the conveying device 5 to the inspection cabinet 1 for inspection, and the auxiliary piece 4 is arranged in front of the inspection cabinet 1, and the auxiliary piece 4 is used for The magnesium alloy screen parts are automatically turned over and automatically unloaded after the inspection is completed. A conveying device 26 is provided under the auxiliary part 4. The magnesium alloy screen parts that have been inspected and removed by the auxiliary part 4 can be placed on the conveying device 26 for transportation. The conveying device 1 5 and the conveying device 26 can both be belt conveyors when in use. Two toolings for placing magnesium alloy screen parts are provided on the inspection cabinet 1. The two toolings are used for placing the front and back of the magnesium alloy screen parts respectively. The tooling for placing the front magnesium alloy screen parts is located on the inspection cabinet 1 close to the inner side, and the tooling for placing the back magnesium alloy screen parts is located on the inspection cabinet 1 close to the outer side.

[0038] Furthermore, the conveying device 5 includes a bracket 1, on which a linear motor 31 is provided, on which a connecting frame plate 32 is provided, and on which a lifting device 33 is provided at one end of the connecting frame plate 32 close to the detection cabinet 1, and on which a suction cup gripper 34 for grabbing the magnesium alloy screen part on the conveying device 5 is provided. The lifting device 33 and the lifting device 2 413 can be linear motors 441 in actual use, and the lifting device 33 can control the lifting and lowering movement of the suction cup gripper 34.

[0039] Furthermore, the auxiliary component 4 includes a positioning frame 42, on which a moving component 41 is provided for driving the moving component 41, on which a connecting plate 425 and a connecting rod 45 are provided, and at the end of the connecting plate 425 away from the positioning frame 42, a second suction cup gripper 43 is provided, and at the end of the connecting rod 45 away from the positioning frame 42, a third suction cup gripper 46 is provided, by which the magnesium alloy screen component after the front side inspection can be removed, and the removed magnesium alloy screen component can be turned over by the auxiliary component 4, so that the inspection mechanism 2 can perform a reverse appearance inspection on the magnesium alloy screen component, and the moving component 41 includes a second bracket, on which a second linear motor 43 is provided. 11. A connecting frame plate 412 is provided on the linear motor 411. A lifting device 413 is provided at one end of the connecting frame plate 412 close to the detection cabinet 1. The lifting device 413 is connected to the positioning frame 42. The auxiliary component 4 can be driven to move in all directions as a whole through the moving component 41. A connecting end 421 and a connecting end 422 are provided on the positioning frame 42. A connecting rod 45 is rotatably provided on the connecting end 421. A driving component 44 for driving the connecting rod 45 to rotate is provided on the connecting end 422. A connecting plate 425 is provided on the connecting end 422. A grabbing component 47 for grabbing the turned-over magnesium alloy screen component is also provided on the positioning frame 42.

[0040] It should be noted that the driving member 44 includes a motor 441, a rotating rod 443 and a transmission assembly 444. The output shaft of the motor 441 is provided with a bevel gear set 442. The motor 441 is connected to the rotating rod 443 through the bevel gear set 442. The transmission assembly 444 is provided on the rotating rod 443 and the connecting rod 45. The rotating rod 443 is connected to the connecting rod 45 through the transmission assembly 444. The bevel gear set 442 is composed of two bevel gears when in use. The two bevel gears are respectively provided on the output shaft of the motor 441 and the rotating rod 443. On the rotating rod 443, the output shaft of the motor 441 can synchronously drive the rotating rod 443 to rotate when it rotates. The transmission assembly 444 is composed of two synchronous pulleys and a synchronous belt when in use. The synchronous belt sleeve is arranged on the two synchronous pulleys, and the two synchronous pulleys are respectively arranged on the connecting rod 45 and the rotating rod 443, so that the rotating rod 443 can synchronously drive the connecting rod 45 to rotate when it rotates, and then drive the suction cup gripper three 46 to rotate, so that the magnesium alloy screen part on the suction cup gripper three 46 is rotated and turned over.

[0041] It should be supplemented that the grabbing member 47 includes a moving frame 472 and a guide plate 471, the guide plate 471 is provided with a guide hole 4711, the moving frame 472 is provided with an extension plate 4721, the extension plate 4721 is provided with a guide block 474, the guide block 474 is in the guide hole 4711, the moving frame 472 is provided with a positioning end 4722, the positioning end 4722 is provided with a suction cup gripper four 473 for gripping the turned-over magnesium alloy screen member, and the guide hole 4711 is divided into an inclined end and a vertical end connected to the inclined end when opened, so that the suction cup gripper four 473 moves to be aligned with the suction cup gripper three 46 up and down, and then moves downward, so that the suction cup gripper four 473 can grip the magnesium alloy screen member turned over on the suction cup gripper three 46.

[0042] The grabbing member 47 also includes a cylinder 476 for pushing the moving frame 472 to move. A limit block 477 is provided on the output shaft of the cylinder 476. The moving frame 472 is provided with two limit plates 475. The limit plates 475 are provided with limit holes 4751. The limit block 477 is provided with limit ends 4771 at the upper and lower ends. The limit block 477 is located between the two limit plates 475, and the upper and lower limit ends 4771 are respectively located in the limit holes 4751 of the two limit plates 475. When the output shaft of the cylinder 476 drives the limit block 477 to move up and down, the limit block 477 can drive the moving frame 472 to move through the limit plates 475. When the moving frame 472 is moved, the limit block 477 is moved up and down. When 72 is tilted and moved through the guide hole 4711, the moving frame 472 can be limited and moved through the limit block 477, so that the moving frame 472 can stably move tilted downward or tilted upward, the guide plate 471 is arranged on the positioning frame 42, the positioning frame 42 is provided with a fixed end 423, the cylinder 476 is fixed on the fixed end 423, the connecting end 422 of the positioning frame 42 is provided with a fixed plate 424, the motor 441 is fixed on the fixed plate 424, the motor 441 is fixedly installed through the fixed plate 424, the cylinder 476 is fixedly installed through the fixed end 423, and the guide plate 471 is fixedly installed on the positioning frame 42.

[0043] When the present invention is in use, the magnesium alloy screen piece is transported to the bottom of the suction cup gripper 34 by the conveying device 5, and the lifting device 33 is started, and the suction cup gripper 34 is driven downward by the lifting device 33 to grab the magnesium alloy screen piece transported from the conveying device 5. After grabbing, the lifting device 33 drives the suction cup gripper 34 to move up and reset, and the linear motor 31 is started to move the suction cup gripper 34 toward the detection cabinet 1 through the connecting frame plate 32, so that the suction cup gripper 34 drives the grabbed magnesium alloy screen piece to move above the tooling placed on the front, and the lifting device 33 is started to move the suction cup gripper 34 downward, and then drives the magnesium alloy screen piece downward, so that the magnesium alloy screen piece is placed on the tooling below, and then the loading piece 3 is reset as a whole. After completing the automatic loading and placement of the magnesium alloy screen piece, the detection mechanism 2 is started again to use its own camera to shoot and detect the front appearance of the placed magnesium alloy screen piece;

[0044] After the magnesium alloy screen component has completed the inspection and shooting of the front appearance, the inspection mechanism 2 is reset as a whole, and the linear motor 2 411 is started. The linear motor 2 411 moves the positioning frame 42 toward the inspection cabinet 1 through the connecting frame plate 2 412, so that the suction cup gripper 3 46 moves to the top of the tooling on which the front magnesium alloy screen component is placed. The positioning frame 42 is moved downward by starting the linear motor 2 411, and the positioning frame 42 drives the suction cup gripper 3 46 to move downward through the connecting rod 45, so that the suction cup gripper 3 46 contacts the front of the magnesium alloy screen component, and then grabs the magnesium alloy screen component after the inspection. The lifting device 2 413 drives the suction cup gripper 3 46 to move upward, and then drives the grasped magnesium alloy screen part to move upward and away from the tooling placed on the front below. Then the linear motor 2 411 drives the lifting device 2 to move toward the tooling placed on the front. At the same time, the motor 441 is started, and the output shaft of the motor 441 drives the bevel gear group 442 to operate. The bevel gear group 442 drives the rotating rod 443 connected thereto to rotate. The rotating rod 443 drives the transmission assembly 444 to operate, and the transmission assembly 444 drives the connecting rod 45 to rotate synchronously. The connecting rod 45 drives the suction cup gripper 3 46 to rotate, and then drives the grasped magnesium alloy screen. The screen piece rotates 180 degrees, so that the reverse side of the magnesium alloy screen piece rotates upward, and the cylinder 476 is started. The output of the cylinder 476 pushes the moving frame 472 downward through the limit block 477. When the moving frame 472 moves downward, the limit block 477 moves in the limit hole 4751, so that the moving frame 472 moves toward the direction of the suction cup gripper 3 46. When the moving frame 472 moves, the suction cup gripper 2 43 moves together, so that the suction cup gripper 2 43 can grab the reverse side of the magnesium alloy screen piece that rotates upward, and then the electron starts its output shaft to rotate, so that the suction cup gripper 2 46 3 grabs the magnesium alloy and moves it upward to reset. The positions of the suction cup gripper 2 43 and the suction cup gripper 3 46 are staggered. The linear motor 2 411 is started again, and then drives the magnesium alloy screen part grabbed by the suction cup gripper 2 43 to move to the top of the reverse tooling. The lifting device 2 413 is started to move the suction cup gripper 2 43 downward, and then the magnesium alloy screen part turned over on the suction cup gripper 2 43 is placed on the tooling for flipping detection below, completing the automatic flipping of the magnesium alloy screen part. Then the auxiliary part 4 is reset and moved as a whole. At the same time, the loading part 3 places the next magnesium alloy screen part to be tested on the front tooling;

[0045] Restart the detection mechanism 2, and perform visual appearance inspection on the front and back sides of the magnesium alloy screen parts placed on the two toolings through the detection mechanism 2. When the auxiliary part 4 grabs the magnesium alloy screen part placed on the front tooling for turning over next time, when the suction cup gripper three 46 moves down to grab, the suction cup gripper four 473 will also contact the magnesium alloy screen part placed on the back tooling, so that the magnesium alloy screen part that has completed the back side inspection can be grabbed, so that the magnesium alloy screen parts after the inspection can be automatically unloaded at the same time, avoiding the problems of high cost, slow speed, and easy error in manual inspection methods.

[0046] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A magnesium alloy screen visual appearance inspection device, characterized in that: It includes a detection cabinet (1); A detection mechanism (2) is arranged in the detection cabinet (1), and the detection mechanism (2) is used to detect the appearance of the magnesium alloy screen component; A conveying device (5) is arranged on one side of the detection cabinet (1), and the conveying device (5) is used to convey the magnesium alloy screen part toward the detection cabinet (1); A loading piece (3) is arranged on the same side as the conveying device (5), and the loading piece (3) is used to deliver the magnesium alloy screen piece conveyed by the conveying device (5) to the inspection cabinet (1) for inspection; An auxiliary component (4) is arranged in front of the detection cabinet (1), and the auxiliary component (4) is used for automatically turning over the magnesium alloy screen component and automatically unloading the component after the detection is completed; The detection cabinet (1) is provided with two fixtures for placing the magnesium alloy screen component, and the two fixtures are respectively used for placing the front side and the back side of the magnesium alloy screen component; The conveying device (5) comprises a bracket (1), a linear motor (31) is provided on the bracket (1), a connecting frame (32) is provided on the linear motor (31), a lifting device (33) is provided at one end of the connecting frame (32) close to the detection cabinet (1), and a suction cup gripper (34) is provided on the lifting device (33) for grabbing the magnesium alloy screen part on the conveying device (5); The auxiliary component (4) comprises a positioning frame (42), the positioning frame (42) is provided with a moving component (41) for driving the positioning frame (42), the positioning frame (42) is provided with a connecting plate (425) and a connecting rod (45), the end of the connecting plate (425) away from the positioning frame (42) is provided with a second suction cup gripper (43), and the end of the connecting rod (45) away from the positioning frame (42) is provided with a third suction cup gripper (46); The moving member (41) comprises a second bracket, a second linear motor (411) is provided on the second bracket, a second connecting frame plate (412) is provided on the second linear motor (411), a second lifting device (413) is provided at one end of the second connecting frame plate (412) close to the detection cabinet (1), and the second lifting device (413) is connected to the positioning frame (42); The positioning frame (42) is provided with a first connecting end (421) and a second connecting end (422); the connecting rod (45) is rotatably arranged on the first connecting end (421); the second connecting end (422) is provided with a driving member (44) for driving the connecting rod (45) to rotate; the connecting plate (425) is arranged on the second connecting end (422); and the positioning frame (42) is further provided with a grabbing member (47) for grabbing the turned-over magnesium alloy screen member; The driving member (44) comprises a motor (441), a rotating rod (443) and a transmission assembly (444); a bevel gear set (442) is provided on the output shaft of the motor (441); the motor (441) is transmission-connected to the rotating rod (443) via the bevel gear set (442); the transmission assembly (444) is provided on the rotating rod (443) and the connecting rod (45); the rotating rod (443) is transmission-connected to the connecting rod (45) via the transmission assembly (444); The grabbing member (47) comprises a moving frame (472) and a guide plate (471), the guide plate (471) being provided with a guide hole (4711), the moving frame (472) being provided with an extension plate (4721), the extension plate (4721) being provided with a guide block (474), the guide block (474) being located in the guide hole (4711), the moving frame (472) being provided with a positioning end (4722), the positioning end (4722) being provided with a suction cup gripper four (473) for gripping the turned-over magnesium alloy screen member; The grabbing member (47) further comprises a cylinder (476) for pushing the moving frame (472) to move; a limit block (477) is provided on an output shaft of the cylinder (476); two limit plates (475) are provided on the moving frame (472); limit holes (4751) are provided on the limit plates (475); the limit block (477) is provided with limit ends (4771) at the top and bottom; the limit block (477) is located between the two limit plates (475); and the upper and lower limit ends (4771) are respectively located in the limit holes (4751) of the two limit plates (475).

2. The magnesium alloy screen visual appearance inspection device according to claim 1, characterized in that: The guide plate (471) is disposed on a positioning frame (42), a fixed end (423) is provided on the positioning frame (42), the cylinder (476) is fixed on the fixed end (423), a fixed plate (424) is provided on the second connecting end (422) of the positioning frame (42), and the motor (441) is fixed on the fixed plate (424).

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