Visual inspection device for automatic polishing machine

Abstract

The invention discloses a visual inspection device for an automatic polishing machine, and relates to the technical field of automatic polishing machines. Comprising a mounting rack on which a chain plate conveying mechanism for conveying workpieces is mounted; and the multiple movable frames are linearly distributed, each movable frame is of a [-shaped structure, one end of each movable frame is provided with a guide rod, and the guide rods slide on the inner wall of the mounting frame. By arranging the structures such as the movable frames and the rolling wheels, the rolling wheels on the two sides can make contact with the side faces of the machined parts based on the acting force of the clamping springs in the machined part conveying process of the chain plate conveying mechanism, auxiliary limiting is conducted on the machined parts, the structure is kept stable, and when machined parts with different widths are machined, the distance between the two movable frames is different; when the movable frame moves, the height of the sliding block can be adjusted through traction of the traction rope, so that the height of the image acquisition camera is changed; according to the scheme, the purpose of adaptively adjusting the image acquisition camera is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic polishing machines, and particularly to a vision detection device for an automatic polishing machine. Background Art

[0002] In modern industrial production, automatic polishing technology plays a crucial role in improving the surface quality of products and reducing labor costs. The traditional manual polishing method can no longer meet the requirements of efficient and precise production. Automatic polishing equipment has become an important development direction in the industry.

[0003] Some existing automatic polishing equipment is equipped with a vision detection device to assist in judging the polishing quality. For example, a vision camera is used for image acquisition, and the system analyzes the acquired image information to judge whether the polishing is qualified or abnormal. At present, although the vision camera can achieve detection, the height of the camera is relatively fixed. For workpieces of different sizes, in order to be able to capture the全貌, the better situation is to set different height positions, and each position corresponds to a workpiece of a certain width. However, when adjusting, it requires the drive of a motor or a cylinder; and the drive of the motor or the cylinder depends on the recognition of the width of the workpiece; and the number of set positions is usually very limited, only corresponding to workpieces of several widths, with great limitations and poor versatility.

[0004] After retrieval, the application solution with the Chinese patent application number CN202010914282.1 discloses an integrated intelligent device for detecting and polishing, including a detection system and a CNC polishing machine. The detection system consists of a PC - BASED machine vision system and is used for detecting workpieces to be polished. The above - mentioned integrated intelligent device for detecting and polishing in the literature has the above - mentioned problems of great limitations and poor versatility and is difficult to be applicable to workpieces of different sizes. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art and propose a vision detection device for an automatic polishing machine.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A vision detection device for an automatic polishing machine, comprising: A mounting frame, on which a chain plate conveying mechanism for conveying workpieces is installed; A movable frame, multiple movable frames are linearly distributed, the movable frame has a U - shaped structure, one end of the movable frame is installed with a guide rod, and the guide rod slides on the inner wall of the mounting frame; one end of the movable frame is installed with a strip plate, and the bottom of the strip plate is installed with linearly distributed rollers; the movable frame and the mounting frame are connected by a clamping spring; A guide frame, the guide frame is installed on the top of the mounting frame, and the movable frame slides on the inner wall of the guide frame; The support frame is installed on the mounting frame, a slide rail is installed on one side of the support frame, a slider is connected to the slide rail and slides up and down, and an image acquisition camera is installed on one side of the slider; The connecting arm is installed on the movable frame closest to the slide rail. A traction rope is fixed to one end of the connecting arm. A fixed pulley is rotatably installed on one side of the slide rail. One end of the traction rope passes through the fixed pulley and is connected to the slider. A polishing mechanism is installed on the supporting frame.

[0007] As a preferred embodiment of the present invention: a tooth plate is installed at the bottom end of the movable frame, the tooth plates of the two movable frames are staggered, a wheel frame is installed on the inner side of the mounting frame, a gear is rotatably installed on the wheel frame, and the upper and lower sides of the gear are respectively engaged with the two tooth plates.

[0008] As a preferred embodiment of the present invention: a vertical plate is installed on the chain conveying mechanism, and an expansion assembly is installed on the chain conveying mechanism, the expansion assembly includes a V-shaped plate and a connecting plate, the connecting plate is installed at the end of the V-shaped plate close to the vertical plate, and the two groups of connecting plates are arranged in parallel.

[0009] As a preferred embodiment of the present invention, slots are provided at both ends of the V-shaped plate and one end of the connecting plate, and an insert is integrally provided at the other end of the connecting plate. The connecting plate is installed in the slot of another connecting plate or the V-shaped plate through the insert to achieve splicing connection.

[0010] As a preferred embodiment of the present invention, a mounting hole is provided on the chain plate of the chain plate conveying mechanism, a first mounting column adapted to the mounting hole is provided at the bottom of the V-shaped plate and the connecting plate, and a second mounting column adapted to the mounting hole is provided at the bottom of the vertical plate.

[0011] As a preferred embodiment of the present invention, a locking cylinder is installed on one side of the sliding block, and a reference block for detection by an image acquisition camera is installed on the top of the V-shaped plate.

[0012] As a preferred embodiment of the present invention: a first limiting groove is provided on one end of the strip plate on a side away from the middle of the chain conveyor mechanism, and a second limiting groove is provided on the other end of the strip plate close to the middle of the chain conveyor mechanism, and the second limiting groove is located on the side of the first limiting groove away from the image acquisition camera; one end of one strip plate contacts one end of the other strip plate, and the second limiting groove is engaged with the first limiting groove.

[0013] As a preferred embodiment of the present invention: the polishing mechanism includes: Hydraulic cylinder, the hydraulic cylinder is installed on the support frame, and a roller frame is installed at the output end of the hydraulic cylinder; The polishing roller is rotatably mounted on the roller frame; the polishing roller is located on the conveying path of the workpiece; The polishing motor is installed on one side of the roller frame, and the output end of the polishing motor is connected to the shaft of the polishing roller through a synchronous wheel transmission assembly.

[0014] As a preferred embodiment of the present invention: positioning frames are installed on both sides of the roller frame, the inner wall of the movable frame below the positioning frame is connected to the lifting frame for sliding up and down, an anti-slip pad is provided on the top of the lifting frame, a pressure plate is fixed to the bottom of the lifting frame, the positioning frame and the movable frame are connected by a supporting spring, a bracket is installed on the mounting frame, and the bracket is located below the pressure plate.

[0015] As a preferred embodiment of the present invention, two symmetrical oblique guide plates are installed on the top of the mounting frame, and the two oblique guide plates form an eight-shaped structure.

[0016] The beneficial effects of the present invention are: The present invention provides a movable frame, rollers and other structures, so that during the process of conveying the workpiece by the chain conveyor mechanism, the rollers on both sides can contact the side surfaces of the workpiece based on the force of the clamping spring, thereby assisting in limiting the workpiece and maintaining the stability of the structure. When processing workpieces of different widths, there is a difference in the distance between the two movable frames. When the movable frame moves, the height of the slider can be adjusted by the traction of the traction rope, thereby changing the height of the image acquisition camera; accordingly, the wider the workpiece, the higher the detection height of the corresponding image acquisition camera, so that the image acquisition camera can have a wider field of view, and the narrower the workpiece, the lower the detection height of the corresponding image acquisition camera, so that the image acquisition camera can be closer to the workpiece for detection; the solution of the present invention achieves the purpose of adaptively adjusting the image acquisition camera.

[0017] The present invention provides gears and toothed plates, and based on the transmission of the gears and toothed plates, the movable frames on both sides can move synchronously, thereby better keeping the workpiece in the center position.

[0018] By setting up the vertical plate and the expansion support assembly, the present invention can use the expansion support assembly to first squeeze the rollers and the movable frame to both sides during the conveying process of the chain conveying mechanism to facilitate the entry of the workpiece. The setting of the vertical plate can better convey the workpiece and avoid relative sliding between the workpiece and the surface of the chain conveying mechanism.

[0019] The present invention provides a detachable V-shaped plate and a connecting plate, and can adjust the time for the expansion component to squeeze the roller and the movable frame to both sides according to needs, so as to adapt to workpieces of different lengths.

[0020] By setting up a locking cylinder and a reference block, the present invention can determine that the expansion component has passed through based on system recognition after the image acquisition camera captures the reference block, that is, the expansion component has left the roller. At this time, the position of the slider is the accurate detection position, and the system controls the locking cylinder to work, so that the slider is locked on the slide rail.

[0021] The present invention provides a first limiting groove and a second limiting groove, so that when the first group of rollers are stretched outward during transportation, the subsequent strips can be simultaneously stretched outward with the cooperation of the first limiting groove and the second limiting groove. After the expansion component leaves the current roller, based on the action force of the clamping spring, the roller can move toward the middle and contact the side wall of the workpiece to limit the workpiece.

[0022] The present invention provides a positioning frame, a lifting frame and other structures, so that during polishing, the polishing roller can be driven to the polishing position by a hydraulic cylinder, the positioning frame is used to press the lifting frame, and the movable frame is restricted from sliding left and right, thereby achieving the purpose of fixing the movable frame, making the workpiece more stable during polishing, and avoiding the workpiece from being skewed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the bottom of the present invention.

[0025] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 It is a schematic structural diagram of the coordination between the positioning frame and the lifting frame of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the slider and image acquisition camera of the present invention.

[0028] Figure 6 This is a structural schematic diagram of the present invention in which the vertical plate and the V-shaped plate are removed from the chain plate conveying mechanism.

[0029] In the figure: 1-mounting frame; 2-support frame; 3-movable frame; 4-clamping spring; 5-chain plate conveyor mechanism; 6-vertical plate; 7-oblique guide plate; 8-processing part; 9-guide frame; 10-hydraulic cylinder; 11-wheel frame; 12-tooth plate; 13-gear; 14-guide rod; 15-positioning frame; 16-lifting frame; 17-bracket; 18-pressing plate; 19-roller; 20-polishing roller; 21-support spring; 22- Step wheel transmission assembly; 23-polishing motor; 24-roller frame; 25-slide rail; 26-fixed pulley; 27-locking cylinder; 28-image acquisition camera; 29-connecting arm; 30-slider; 31-traction rope; 32-mounting hole; 33-second mounting column; 34-first limiting groove; 35-first mounting column; 36-connecting plate; 37-insertion strip; 38-slot; 39-V-shaped plate; 40-reference block; 41-strip plate. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0031] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0032] Embodiment 1:

[0033] A vision detection device for an automatic polishing machine, as Figure 1-6 shown, includes: a mounting frame 1, a movable frame 3, a guiding frame 9, a support frame 2, and a connecting arm 29.

[0034] Among them, a chain plate conveying mechanism 5 for conveying a workpiece 8 is installed on the mounting frame 1. A plurality of movable frames 3 are linearly distributed. The movable frame 3 has a U-shaped structure. A guiding rod 14 is installed at one end of the movable frame 3, and the guiding rod 14 slides on the inner wall of the mounting frame 1. A strip plate 41 is installed at one end of the movable frame 3, and a plurality of linearly distributed rollers 19 are installed at the bottom of the strip plate 41. A clamping spring 4 is connected between the movable frame 3 and the mounting frame 1.

[0035] Among them, the guiding frame 9 is installed on the top of the mounting frame 1. The movable frame 3 slides on the inner wall of the guiding frame 9. The support frame 2 is installed on the mounting frame 1. A slide rail 25 is installed on one side of the support frame 2. A slider 30 is slidably connected up and down in the slide rail 25. An image acquisition camera 28 is installed on one side of the slider 30. The connecting arm 29 is installed on the movable frame 3 closest to the slide rail 25. A traction rope 31 is fixed at one end of the connecting arm 29. A fixed pulley 26 is rotatably installed on one side of the slide rail 25. One end of the traction rope 31 passes through the fixed pulley 26 and is connected to the slider 30. A polishing mechanism is installed on the support frame 2.

[0036] By providing structures such as the movable frame 3 and the rollers 19, during the process of the chain plate conveying mechanism 5 conveying the workpiece 8, based on the acting force of the clamping spring 4, the rollers 19 on both sides can be brought into contact with the side surface of the workpiece 8 to perform auxiliary limiting on the workpiece 8 and keep the structure stable. When processing workpieces 8 with different widths, the distance between the two movable frames 3 is different. When the movable frame 3 moves, the height of the slider 30 can be adjusted through the traction of the traction rope 31, thereby changing the height of the image acquisition camera 28. Correspondingly, for a wider workpiece 8, the detection height of the image acquisition camera is higher, enabling the image acquisition camera 28 to have a wider field of view. For a narrower workpiece 8, the detection height of the image acquisition camera 28 is lower, enabling the image acquisition camera 28 to detect closer to the workpiece 8. The solution of the present invention achieves the purpose of adaptively adjusting the image acquisition camera 28.

[0037] In order to keep the workpiece 8 in a centered position; as Figure 2、 Figure 3 As shown, a tooth plate 12 is installed at the bottom end of the movable frame 3, and the tooth plates 12 of the two movable frames 3 are staggered. A wheel frame 11 is installed on the inner side of the mounting frame 1, and a gear 13 is rotatably installed on the wheel frame 11. The upper and lower sides of the gear 13 are respectively engaged with the two tooth plates 12.

[0038] By providing the gear 13 and the toothed plate 12 , the movable frames 3 on both sides can be moved synchronously based on the transmission of the gear 13 and the toothed plate 12 , thereby better keeping the workpiece 8 in the center position.

[0039] In order to better transport the workpiece 8; Figure 1 、 Figure 6 As shown, the chain conveyor mechanism 5 is installed with a vertical plate 6, and the chain conveyor mechanism 5 is installed with an expansion assembly, which includes a V-shaped plate 39 and a connecting plate 36. The connecting plate 36 is installed at the end of the V-shaped plate 39 close to the vertical plate 6, and the two groups of connecting plates 36 are arranged in parallel.

[0040] By setting up the vertical plate 6 and the expansion component, during the conveying process of the chain conveyor mechanism 5, the expansion component can be used to first squeeze the roller 19 and the movable frame 3 to both sides to facilitate the entry of the workpiece 8. Setting up the vertical plate 6 can better convey the workpiece 8 and avoid relative sliding between the workpiece 8 and the surface of the chain conveyor mechanism 5.

[0041] In order to facilitate flexible adjustment; Figure 6 As shown, slots 38 are provided at both ends of the V-shaped plate 39 and one end of the connecting plate 36, and an inserting strip 37 is integrally provided at the other end of the connecting plate 36. The connecting plate 36 is installed in the slot 38 of another connecting plate 36 or the V-shaped plate 39 through the inserting strip 37 to achieve splicing connection.

[0042] By providing the detachable V-shaped plate 39 and the connecting plate 36 , the time for the expansion component to push the roller 19 and the movable frame 3 to the sides can be adjusted according to needs to adapt to workpieces 8 of different lengths.

[0043] In order to facilitate flexible adjustment; Figure 6 As shown, a mounting hole 32 is provided on the chain plate of the chain plate conveying mechanism 5, a first mounting column 35 adapted to the mounting hole 32 is provided at the bottom of the V-shaped plate 39 and the connecting plate 36, and a second mounting column 33 adapted to the mounting hole 32 is provided at the bottom of the vertical plate 6.

[0044] By providing structures such as the mounting hole 32 , the first mounting column 35 and the second mounting column 33 , the corresponding chain plate can be installed according to needs to adapt to workpieces 8 of different lengths.

[0045] In order to improve the detection accuracy; Figure 5 、 Figure 6As shown, a locking cylinder 27 is installed on one side of the slider 30 , and a reference block 40 for detection by the image acquisition camera 28 is installed on the top of the V-shaped plate 39 .

[0046] By providing the locking cylinder 27 and the reference block 40, after the image acquisition camera 28 captures the reference block 40, the system can recognize that the expansion assembly has passed, i.e., the expansion assembly has left the roller 19. At this time, the position of the slider 30 is the accurate detection position, and the system controls the locking cylinder 27 to operate, locking the slider 30 on the slide rail 25. Locking can be achieved by using a top pressure cylinder or other methods; among them, the length of the expansion component should be less than the distance between the roller 19 closest to the image acquisition camera 28 and the image acquisition camera 28. The identification method of the reference block 40 belongs to the existing technology and will not be elaborated here.

[0047] In order to ensure that each strip 41 can be stably opened and the workpiece 8 can be effectively limited after the expansion assembly leaves; Figure 6 As shown, a first limiting groove 34 is provided on one end of the strip 41 away from the middle of the chain conveyor mechanism 5, and a second limiting groove is provided on the other end of the strip 41 close to the middle of the chain conveyor mechanism 5, and the second limiting groove is located on the side of the first limiting groove away from the image acquisition camera 28; one end of one strip 41 contacts one end of the other strip 41, and at the same time, the second limiting groove is engaged with the first limiting groove 34.

[0048] By setting the first limiting groove 34 and the second limiting groove, when the first group of rollers 19 are stretched outward during transportation, the subsequent strips 41 can be simultaneously stretched outward with the cooperation of the first limiting groove 34 and the second limiting groove. After the expansion component leaves the current roller 19, based on the force of the clamping spring 4, the roller 19 can move toward the middle and contact the side wall of the workpiece 8 to limit the workpiece 8.

[0049] In order to facilitate polishing; Figure 4 As shown, the polishing mechanism includes: a hydraulic cylinder 10, a polishing roller 20 and a polishing motor 23.

[0050] Among them, the hydraulic cylinder 10 is installed on the support frame 2, and the output end of the hydraulic cylinder 10 is installed with a roller frame 24, and the polishing roller 20 is rotatably installed on the roller frame 24; the polishing roller 20 is located on the conveying path of the workpiece 8, and the polishing motor 23 is installed on one side of the roller frame 24, and the output end of the polishing motor 23 is connected to the shaft transmission of the polishing roller 20 through the synchronous wheel transmission assembly 22.

[0051] In order to ensure the stability of polishing; Figure 4As shown, positioning frames 15 are installed on both sides of the roller frame 24, and the inner wall of the movable frame 3 below the positioning frame 15 is connected to the lifting frame 16 for sliding up and down. An anti-slip pad is provided on the top of the lifting frame 16, and a pressure plate 18 is fixed to the bottom of the lifting frame 16. The positioning frame 15 and the movable frame 3 are connected by a support spring 21, and a bracket 17 is installed on the mounting frame 1, and the bracket 17 is located below the pressure plate 18.

[0052] By providing structures such as the positioning frame 15 and the lifting frame 16, the polishing roller 20 can be driven to move to the polishing position by the hydraulic cylinder 10 during polishing. The positioning frame 15 is used to press the lifting frame 16 and restrict the movable frame 3 from sliding left and right, thereby achieving the purpose of fixing the movable frame 3, making the workpiece 8 more stable during polishing, and preventing the workpiece 8 from skewing.

[0053] like Figure 1 As shown, two symmetrical inclined guide plates 7 are installed on the top of the mounting frame 1, and the two inclined guide plates 7 form an eight-shaped structure.

[0054] For the parts that are not disclosed in detail in the present invention, those skilled in the art can ensure that the solutions of the present invention are successfully implemented based on common sense, normal thinking logic and existing technologies.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A visual inspection device for an automated polishing machine, characterized in that: Comprising: An installation frame (1) on which a chain plate conveying mechanism (5) for conveying workpieces (8) is installed; A movable frame (3), one end of which is provided with a guide rod (14) that slides on the inner wall of the installation frame (1); one end of the movable frame (3) is provided with a strip plate (41), and the bottom of the strip plate (41) is provided with linearly distributed rollers (19); the movable frame (3) and the installation frame (1) are connected by a clamping spring (4); A guide frame (9) installed on the top of the installation frame (1), and the movable frame (3) slides on the inner wall of the guide frame (9); A support frame (2) installed on the installation frame (1), one side of the support frame (2) is provided with a slide rail (25), and a slider (30) is slidably connected up and down in the slide rail (25), and an image acquisition camera (28) is installed on one side of the slider (30); A connecting arm (29) installed on the movable frame (3) closest to the slide rail (25), one end of the connecting arm (29) is fixed with a traction rope (31), and a fixed pulley (26) is rotatably installed on one side of the slide rail (25), and one end of the traction rope (31) is connected to the slider (30) after passing through the fixed pulley (26).

2. A visual inspection device for an automated polishing machine according to claim 1, characterized in that: A plurality of movable frames (3) are linearly distributed, and the movable frame (3) has a U-shaped structure; A polishing mechanism is installed on the support frame (2); A toothed plate (12) is installed at the bottom end of the movable frame (3), the toothed plates (12) of two movable frames (3) are staggered, a wheel frame (11) is installed inside the installation frame (1), and a gear (13) is rotatably installed on the wheel frame (11), and the upper and lower sides of the gear (13) are respectively meshed with the two toothed plates (12).

3. A visual inspection device for an automated polishing machine according to claim 1, characterized in that: A vertical plate (6) is installed on the chain plate conveying mechanism (5), and an expansion support component is installed on the chain plate conveying mechanism (5). The expansion support component includes a V-shaped plate (39) and a connecting plate (36). The connecting plate (36) is installed at the end of the V-shaped plate (39) close to the vertical plate (6), and two groups of connecting plates (36) are arranged in parallel.

4. A visual inspection device for an automated polishing machine according to claim 3, characterized in that: Slots (38) are opened at two ends of the V-shaped plate (39) and one end of the connecting plate (36). An inserting strip (37) is integrally arranged at the other end of the connecting plate (36). The connecting plate (36) is installed in the slot (38) of another connecting plate (36) or the V-shaped plate (39) through the inserting strip (37) to achieve splicing connection.

5. A visual inspection device for an automated polishing machine according to claim 4, characterized in that: Installation holes (32) are opened on the chain plate of the chain plate conveying mechanism (5). First installation columns (35) adapted to the installation holes (32) are arranged at the bottoms of the V-shaped plate (39) and the connecting plate (36), and second installation columns (33) adapted to the installation holes (32) are arranged at the bottom of the vertical plate (6).

6. A visual inspection device for an automated polishing machine according to claim 3, characterized in that: A locking cylinder (27) is installed on one side of the slider (30), and a reference block (40) for the image acquisition camera (28) to detect is installed on the top of the V-shaped plate (39).

7. A visual inspection device for an automated polishing machine according to claim 1, characterized in that: A first limiting groove (34) is provided on one end of the strip plate (41) away from the middle of the chain plate conveying mechanism (5), and a second limiting groove is provided on the other end of the strip plate (41) close to the middle of the chain plate conveying mechanism (5), and the second limiting groove is located on the side of the first limiting groove away from the image acquisition camera (28); one end of one strip plate (41) contacts one end of the other strip plate (41), and the second limiting groove is engaged with the first limiting groove (34).

8. A visual inspection device for an automated polishing machine according to claim 2, characterized in that: The polishing mechanism comprises: A hydraulic cylinder (10), the hydraulic cylinder (10) is mounted on the support frame (2), and a roller frame (24) is mounted on the output end of the hydraulic cylinder (10); A polishing roller (20), the polishing roller (20) is rotatably mounted on a roller frame (24); the polishing roller (20) is located on a conveying path of the workpiece (8); A polishing motor (23) is installed on one side of the roller frame (24), and an output end of the polishing motor (23) is connected to the shaft of the polishing roller (20) through a synchronous wheel transmission assembly (22).

9. A visual inspection device for an automated polishing machine according to claim 8, characterized in that: Positioning frames (15) are installed on both sides of the roller frame (24), and the inner wall of the movable frame (3) below the positioning frame (15) is connected to a lifting frame (16) by sliding up and down. The top of the lifting frame (16) is provided with an anti-slip pad, and a pressure plate (18) is fixed to the bottom of the lifting frame (16). The positioning frame (15) and the movable frame (3) are connected by a support spring (21). A bracket (17) is installed on the mounting frame (1), and the bracket (17) is located below the pressure plate (18).

10. A visual inspection device for an automated polishing machine according to claim 1, characterized in that: Two symmetrical oblique guide plates (7) are installed on the top of the mounting frame (1), and the two oblique guide plates (7) form an eight-shaped structure.

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