Inverter assembly detection device based on visual detection

Abstract

The invention discloses a detection device for inverter assembly based on visual inspection, and relates to the technical field of inverter assembly detection, the detection device comprises a detection mechanism, the detection mechanism comprises a table body, the table body is provided with conveying assemblies, a jacking assembly, a clamping assembly and a three-axis robot, the conveying assemblies are located on the two sides of the jacking assembly, and the clamping assembly is located on the two sides of the jacking assembly; the clamping assembly is located on one side of the conveying assembly, a visual detection module is installed on the three-axis robot, and a buffering limiting piece is installed on the table body. And the adjusting mechanism is mounted on the jacking assembly. Through the fitting mechanism, under the cooperation of the clamping assembly, the fitting mechanism can fit the curved surface / special-shaped side surface of the inverter during clamping, local stress concentration or suspension cannot occur, clamping is stable, clamping force is uniformly distributed, shaking is not likely to be caused, through the adjustment mechanism, under the cooperation of the jacking assembly, the inverter can be adjusted, adsorbed and preliminarily fixed, and the working efficiency is improved. And a subsequent laminating mechanism can be conveniently laminated, clamped and fixed with the inverter more accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of inverter assembly detection, and in particular to an inverter assembly detection device based on visual detection. Background Art

[0002] An inverter is a power electronic device that converts direct current (DC) into alternating current (AC). Its core components include an inverter bridge, control logic circuits, and filter circuits. Its core function is to provide stable, variable-frequency electricity to AC loads. It is widely used in off-grid / grid-connected photovoltaic systems, new energy vehicles, emergency power supplies, and other fields. After the inverter is assembled, it needs to be inspected using a visual inspection device to ensure assembly accuracy and product reliability.

[0003] However, in practical applications, there are still some unresolved problems. The following are some common problems of inspection devices for inverter assembly based on visual inspection: In most cases, the inverter transported to the device needs to be clamped and limited during inspection. The inverter is usually clamped with the help of a clamping plate with a flat structure. Due to the irregular side of the inverter, it cannot fit the curved / special-shaped side of the inverter during clamping, resulting in local force concentration or suspension, unstable clamping, and uneven distribution of clamping force, causing shaking and affecting the accuracy of inspection. Summary of the Invention

[0004] The present invention is proposed in view of the above-mentioned problems existing in the existing inverter assembly inspection device based on visual inspection.

[0005] Therefore, the problem to be solved by the present invention is how to solve the problem of clamping the inverter with the help of a clamping plate with a planar structure. Due to the irregular side of the inverter, the clamping plate cannot fit the curved / special-shaped side of the inverter during clamping, resulting in local force concentration or suspension, and unstable clamping.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a detection device for inverter assembly based on visual detection, comprising: The detection mechanism includes a platform, on which a conveying assembly, a lifting assembly, a clamping assembly and a three-axis robot are respectively installed, the conveying assembly is located on both sides of the lifting assembly, the clamping assembly is located on one side of the conveying assembly, the three-axis robot is installed with a visual detection module, and the platform is installed with a buffer limiter; and An adjustment mechanism is mounted on the jacking assembly and includes a rotating shell that rotates on the jacking assembly, a rubber ring being fixed in the rotating shell, a driving fixture being mounted on the jacking assembly and disposed on the rotating shell, a piston 1 and a spring 1 being respectively mounted in the driving fixture, and both ends of the spring 1 being fixed to the piston 1 and the driving fixture respectively; and, The fitting mechanism is installed on the clamping assembly and includes a mounting frame fixed to the clamping assembly and a liquid bag. A fitting part is fixed on the mounting frame. One end of the fitting part is connected to a valve part. A guide plate is fixed to the upper end of the valve part. A guide hole is provided on the guide plate. A limit adjustment part is installed on the mounting frame and cooperates with the guide plate. A hose is connected between the liquid bag and the valve part.

[0007] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, the jacking assembly includes a fixed plate fixed on the platform, a cylinder is fixed on the fixed plate, a support plate is fixed on the output end of the cylinder, a guide sleeve is fixed on the fixed plate, a guide rod slides inside the guide sleeve, the upper end of which is fixed to the bottom of the support plate, and the lower end is fixed to a reinforcement plate, the rotating shell is rotatably connected to the top of the support plate, and the driving fixing part is installed on the fixed plate and the rotating shell.

[0008] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, the clamping assembly includes a mounting plate fixed on the table, a second cylinder is fixed on one side of the mounting plate, a movable plate is fixed on the output end of the second cylinder, a second guide sleeve is fixed on the mounting plate, a second guide rod slides inside the second guide sleeve, one end of which is fixed to one side of the movable plate, and the mounting frame is fixed to one side of the movable plate.

[0009] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, wherein: the driving fixing part includes an air cylinder fixed on the fixed plate, the upper end of the air cylinder is slidably connected to a rotating tube, the upper end of the rotating tube passes through the support plate and is fixed to the bottom of the rotating shell, a guide groove is opened on the surface of the rotating tube, a guide column is fixed on the inner wall of the air cylinder, and one end slides in the guide groove, the lower end of the rotating tube passes through the bottom of the piston and is fixed with a limiting ring, the piston slides on the inner wall of the air cylinder, and the two ends of the spring are respectively fixed to the surface of the piston and the inner wall of the air cylinder.

[0010] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, the fitting part includes a cylinder fixed on a mounting frame, a second piston slides in the cylinder, a round rod slides at one end of the cylinder, one end of which passes through the inner cavity of the cylinder and is fixed to the second surface of the piston, and the other end of which is embedded with a ball, a spring piece is fixed between the second surface of the piston and the inner wall of the cylinder, a connecting hole is opened at one end of the cylinder, a limiting groove is opened on the outer surface of the round rod, a limiting block is fixed on the cylinder, and it slides in the limiting groove.

[0011] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, the valve component includes a valve housing fixed to one end of the cylinder, a valve block slides on the inner wall of the valve housing, a valve stem slides on the valve housing, the lower end of which penetrates into the inner cavity of the valve housing and is fixed to the top of the valve block, and the upper end of which is fixed to the surface of the guide plate, the upper end surface of the valve stem is sleeved with a spring 2, and its two ends are respectively fixed between the surface of the guide plate and the surface of the valve block.

[0012] As a preferred solution of the inverter assembly detection device based on visual inspection described in the present invention, the limit adjustment part includes a sliding sleeve mounted on the mounting frame, a trigger rod is fixed on the sliding sleeve, and a guide plate is mounted on its surface, a card slot is provided on the inner surface of the sliding sleeve, a groove is provided in the mounting frame, a card block slides in the groove, and the card block cooperates with the card slot.

[0013] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, wherein: a handle is slid on the sliding sleeve, and its two ends are fixed to the bottom of the block, springs three are sleeved on the surfaces of both ends of the handle, and its two ends are respectively fixed between the surface of the block and the inner wall of the groove, a spring two is fixed between the surface of the sliding sleeve and the surface of the mounting frame, a square groove is opened on the inner wall of the groove, a square block is fixed on the block, and it slides in the square groove.

[0014] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, wherein: a reinforcement is installed on the cylinder, and it cooperates with the trigger rod, including a groove body opened in the cylinder, and a driving plate and a movable block are respectively slid in the groove body, the driving plate and the movable block cooperate with each other, a pressure block is fixed at the lower end of the movable block, a rubber pad is fixed at the bottom of the pressure block, the driving plate is located at one end outside the cylinder and a short rod is fixed, a trigger block is rotated on the short rod, a torsion spring is provided on the surface of the short rod, and its two ends are respectively fixed between the surface of the short rod and the surface of the trigger block, a support rod is fixed at one end of the driving plate, and contacts with the surface of the trigger block.

[0015] As a preferred solution of the inspection device for inverter assembly based on visual inspection described in the present invention, wherein: a sliding groove is opened in the groove body, a slider is fixed on the driving plate, and it slides in the sliding groove, a spring four is fixed between the surface of the slider and the inner wall of the sliding groove, a positioning groove is opened in the groove body, a positioning block is fixed on the movable block, and it slides in the positioning groove, and a spring five is fixed between the surface of the positioning block and the inner wall of the positioning groove.

[0016] The beneficial effects of the present invention are as follows: through the cooperation of the fitting mechanism with the clamping assembly, the curved surface / special-shaped side of the inverter can be fitted during clamping, and there will be no local force concentration or suspension. The clamping is stable, the clamping force is evenly distributed and it is not easy to cause shaking. Through the cooperation of the adjusting mechanism with the lifting assembly, the inverter can be adjusted and initially fixed by adsorption, which facilitates the subsequent fitting mechanism to clamp and fix the inverter more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 any creative labor.

[0018] Figure 1 This is a three-dimensional structural diagram of the overall structure of the inspection device for inverter assembly based on visual inspection.

[0019] Figure 2 A local structure stereoscopic diagram of the inspection device for inverter assembly based on visual inspection Figure 1 .

[0020] Figure 3 A local structure stereoscopic diagram of the inspection device for inverter assembly based on visual inspection Figure 2 .

[0021] Figure 4 A local structure stereoscopic diagram of the inspection device for inverter assembly based on visual inspection Figure 3 .

[0022] Figure 5 This is a partially cutaway perspective view of the support plate and air cylinder of an inverter assembly inspection device based on visual inspection.

[0023] Figure 6 An inspection device for inverter assembly based on visual inspection Figure 5 Enlarged view of area A in the middle.

[0024] Figure 7 An inspection device for inverter assembly based on visual inspection Figure 5 Enlarged view of area B.

[0025] Figure 8 This is a three-dimensional structural diagram of the bonding mechanism of the inspection device for inverter assembly based on visual inspection.

[0026] Figure 9 An inspection device for inverter assembly based on visual inspection Figure 8 Enlarged view of area C in the middle.

[0027] Figure 10 An inspection device for inverter assembly based on visual inspection Figure 9 Enlarged view of area D in the middle.

[0028] Figure 11 A partially cutaway perspective view of a mounting frame for an inverter assembly inspection device based on visual inspection.

[0029] Figure 12 An inspection device for inverter assembly based on visual inspection Figure 11 Enlarged view of area E in the middle.

[0030] Figure 13 An inspection device for inverter assembly based on visual inspection Figure 12 Enlarged view of area F in the middle.

[0031] Figure 14 A cross-sectional plan view of the liquid capsule and cylinder of the inspection device for inverter assembly based on vision inspection.

[0032] Figure 15 An inspection device for inverter assembly based on visual inspection Figure 14 Enlarged view of the middle G area.

[0033] Figure 16 An inspection device for inverter assembly based on visual inspection Figure 14 Enlarged view of the middle H area.

[0034] Figure 17 A partially cutaway perspective view of a cylindrical portion of an inverter assembly inspection device based on visual inspection.

[0035] Figure 18 A three-dimensional diagram of the cylinder block and the connection block of the inspection device for inverter assembly based on vision inspection.

[0036] Figure 19 This is a three-dimensional diagram of the buffer limiter structure of the inverter assembly detection device based on visual inspection.

[0037] In the figure: 1. Detection mechanism; 11. Platform; 12. Conveying assembly; 13. Lifting assembly; 14. Clamping assembly; 15. Three-axis robot; 16. Visual inspection module; 17. Photoelectric sensor; 18. Buffer limiter; 19. Chassis; 2. Adjustment mechanism; 21. Rotating shell; 22. Rubber ring; 23. Drive fixing member; 24. Piston 1; 25. Spring 1; 3. Laminating mechanism; 31. Mounting frame; 32. Laminating member; 33. Valve member; 34. Guide plate; 35. Guide hole; 36. Limit adjustment member; 37. Liquid capsule; 38 , hose; 39, reinforcement; 13-1, fixed plate; 13-2, cylinder 1; 13-3, support plate; 13-4, guide sleeve 1; 13-5, guide rod 1; 13-6, reinforcement plate; 14-1, mounting plate; 14-2, cylinder 2; 14-3, movable plate; 14-4, guide sleeve 2; 14-5, guide rod 2; 23-1, cylinder; 23-2, rotating tube; 23-3, guide groove; 23-4, guide column; 23-5, limiting ring; 32-1, cylinder; 32-2, piston 2; 32-3, round rod; 32-4, ball bearing; 32-5, spring piece 1; 32-6, connecting hole; 32-7, limiting groove; 32-8, limiting block; 33-1, valve housing; 33-2, valve block; 33-3, valve stem; 33-4, spring 2; 36-1, sleeve; 36-2, trigger rod; 36-3, slot; 36-4, groove; 36-5, block; 36-6, block; 36-7, handle; 36-8, spring 3; 36-9, spring piece 2; 36-10, square groove; 39-1, tank body; 39-2, drive plate; 39-3, movable block; 39-4, Pressure block; 39-5, rubber pad; 39-6, short rod; 39-7, trigger block; 39-8, torsion spring one; 39-9, support rod; 39-10, slide groove; 39-11, slider; 39-12, spring four; 39-13, positioning groove; 39-14, positioning block; 39-15, spring five; 18-1, cylinder three; 18-2, connecting block; 18-3, damper; 18-4, cross bar; 18-5, rotating block; 18-6, fixed rod; 18-7, roller; 18-8, torsion spring two; 18-9, limit rod. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments. Example 1

[0041] Reference Figures 1 to 8 , which is the first embodiment of the present invention, provides an inspection device for inverter assembly based on visual inspection. The inspection device for inverter assembly based on visual inspection includes a detection mechanism 1, an adjustment mechanism 2 and a bonding mechanism 3. The detection mechanism 1 can transport the inverter and perform visual inspection. The bonding mechanism 3, in cooperation with the clamping component 14, can bond the curved surface / special-shaped side of the inverter during clamping. The clamping is stable, the clamping force is evenly distributed, and it is not easy to cause shaking. The adjustment mechanism 2, in cooperation with the lifting component 13, can adjust the inverter and perform adsorption and preliminary fixation.

[0042] Specifically, the detection mechanism 1 includes a platform 11, on which a conveying component 12, a lifting component 13, a clamping component 14 and a three-axis robot 15 are respectively installed. The conveying component 12 is located on both sides of the lifting component 13, and the clamping component 14 is located on one side of the conveying component 12. A visual inspection module 16 is installed on the three-axis robot 15, and a buffer limiter 18 is installed on the platform 11.

[0043] The conveying component 12 is a triple-speed chain conveyor line with a double-chain asynchronous drive design, equipped with a variable frequency speed regulation motor (2-18m / min stepless speed regulation), integrated anti-static guide bars and guide rails to ensure the stability of inverter transmission. The lifting component 13 can lift the inverter conveyed to the detection device and separate it from the transmission of the conveying component 12. The three-axis robot 15 is a servo three-axis module with an XYZ axis travel of 850×800×300mm, repeat positioning accuracy: X / Y axis ±5μm, Z axis ±2μm, and integrated torque feedback function (adjustable from 0-10N).

[0044] There are two groups of clamping components 14, which can clamp the inverter after jacking to ensure the stability of the inverter. The visual inspection module 16 is a dual industrial camera configuration (20-megapixel global shutter CMOS + 5-megapixel linear array CCD) four-channel ring light source (RGBW independently controllable), and an image processing unit with integrated deep learning algorithm (supporting TensorRT acceleration). All of these are existing technologies. The working principles of this part are all existing technologies, and those skilled in the art can clearly understand them and will not be elaborated here. Through the setting of the buffer limiter 18, the inverter transported to the detection device can be blocked and buffered, thereby achieving preliminary limiting, which is convenient for the subsequent jacking of the inverter to be inspected through the jacking component 13.

[0045] Specifically, the adjustment mechanism 2 is installed on the jacking component 13. Four adjustment mechanisms 2 are provided on one jacking component 13, including a rotating shell 21 that rotates on the jacking component 13. The rotating shell 21 provides a position for the installation of the rubber ring 22. The rubber ring 22 is fixed in the rotating shell 21. The jacking component 13 is equipped with a driving fixing part 23 and is provided on the rotating shell 21. A piston 24 and a spring 25 are respectively installed in the driving fixing part 23. The two ends of the spring 25 are respectively fixed to the piston 24 and the driving fixing part 23.

[0046] By setting the rubber ring 22, when the lifting assembly 13 contacts the bottom of the inverter during operation, it plays a role of buffer support, protecting the inverter during the lifting and contact process. Then, as the lifting assembly 13 runs, the rotating shell 21 can be rotated under the action of the driving fixing member 23, and then the rubber ring 22 is rotated to act on the inverter, so that the side of the inverter is ensured to fit with the buffer limit member 18, which is convenient for the subsequent clamping on both sides. In the process of the clamping assembly 14 driving the fitting mechanism 3, the adjusted fitting member 32 is more accurately fitted and clamped with the inverter, avoiding the use of the usual vertical clamping plate to directly clamp the inverter with irregular sides, thereby improving the stability of the clamping.

[0047] As the jacking assembly 13 continues to operate on the driving fixture 23, the piston 24 in the driving fixture 23 moves upward, and the gas in the space formed by the rubber ring 22, the rotating shell 21 and the inverter is sucked into the inner part of the driving fixture 23. When the amount of gas remains unchanged, the volume of the space is increased, so that the rubber ring 22 acts as a suction cup and seals. During this process, the rubber ring 22 and the rotating shell 21 no longer rotate, and the rubber ring 22 plays the role of preliminarily fixing the inverter to be tested, and its suction force does not affect the pushing and clamping effect of the clamping assembly 14 driving the fitting 32 on the inverter.

[0048] Specifically, the fitting mechanism 3 is installed on the clamping assembly 14, and includes a mounting frame 31 and a liquid capsule 37 fixed on the clamping assembly 14. A fitting part 32 is fixed on the mounting frame 31, and one end of the fitting part 32 is connected to a valve part 33. A guide plate 34 is fixed to the upper end of the valve part 33, and a guide hole 35 is provided on the guide plate 34. A limit adjustment part 36 is installed on the mounting frame 31 and cooperates with the guide plate 34. A hose 38 is connected between the liquid capsule 37 and the valve part 33.

[0049] The liquid capsule 37, the fitting 32, the valve part 33 and the hose 38 are all filled with liquid, and this liquid is hardly compressed under pressure. It is a prior art, and the working principle of this part is a prior art. Those skilled in the art can clearly know it and will not be elaborated here. A plurality of groups of fitting parts 32 are provided on a mounting frame 31, and the number of hoses 38 and valve parts 33 is the same as the number of fitting parts 32. The valve part 33 and the liquid capsule 37 are kept connected through the hose 38.

[0050] The liquid capsule 37 is made of expandable rubber material, which is a prior art. The working principle of this part is also a prior art, which can be clearly understood by those skilled in the art and will not be elaborated here. When the liquid in the fitting 32 is pressed into it through the valve component 33 and the hose 38, it can expand and receive it. After the subsequent valve component 33 is opened and the fitting 32 is not obstructed, the liquid can be sent back to the fitting 32 due to its retraction characteristics. The guide hole 35 is divided into three parts. When the trigger rod 36-2 on the limit adjustment component 36 is located in the first part, the valve component 33 can be opened under the pressure of the liquid in the fitting 32 without causing any obstruction.

[0051] When the trigger rod 36-2 on the limit adjustment part 36 is located in the second part, the valve part 33 cannot be opened under the pressure of the liquid in the fitting part 32, which will cause obstruction. When the trigger rod 36-2 on the limit adjustment part 36 transitions from the second part to the third part and moves, the valve parts 33 on multiple groups of fitting parts 32 on one side can be opened, and the liquid in the liquid sac 37 is pressed into the fitting part 32 to reset it. The valve part 33 can be controlled by the limit adjustment part 36, and then the adjusted fitting part 32 is indirectly restricted so that it will not change easily after adjustment. At the same time, the adjusted state of multiple groups of fitting parts 32 on a mounting frame 31 can be released with one click. Example 2

[0052] Reference Figures 4 to 7 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0053] Specifically, the jacking assembly 13 includes a fixed plate 13-1 fixed on the platform 11, a cylinder 13-2 is fixed on the fixed plate 13-1, a support plate 13-3 is fixed to the output end of the cylinder 13-2, a guide sleeve 13-4 is fixed on the fixed plate 13-1, and there are four guide sleeves 13-4 and four guide rods 13-5. The guide sleeves 13-4 are distributed at the four corners of the top of the mounting plate 14-1 and are fixedly connected thereto. The guide rods 13-5 are distributed at the four corners of the bottom of the support plate 13-3. The guide sleeves 13-4 and the guide rods 13-5 are used to limit and guide the support plate 13-3, so that the support plate 13-3 is more stable when it is driven up and down by the cylinder 13-2.

[0054] A guide rod 13-5 slides inside the guide sleeve 13-4, the upper end of which is fixed to the bottom of the support plate 13-3, and the lower end of which is fixed to a reinforcement plate 13-6. The rotating shell 21 is rotatably connected to the top of the support plate 13-3, and the driving fixing member 23 is installed on the fixing plate 13-1 and the rotating shell 21. The two groups of guide rods 13-5 are reinforced by the reinforcement plate 13-6. The rotating shell 21 is rotatably connected to the support plate 13-3 through a bearing, so that the rotating shell 21 can be fixed on the support plate 13-3 without affecting its rotation.

[0055] The clamping assembly 14 includes a mounting plate 14-1 fixed on the table body 11, a cylinder 2 14-2 is fixed on one side of the mounting plate 14-1, a movable plate 14-3 is fixed on the output end of the cylinder 2 14-2, a guide sleeve 2 14-4 is fixed on the mounting plate 14-1, a guide rod 2 14-5 slides in the guide sleeve 2 14-4, one end of which is fixed to one side of the movable plate 14-3, a mounting frame 31 is fixed to one side of the movable plate 14-3, two guide sleeves 2 14-4 are provided on one mounting plate 14-1, and there are two guide rods 2 14-5. The movable plate 14-3 is guided and supported by the guide sleeve 2 14-4 and the guide rod 2 14-5, thereby reducing the longitudinal force on the output end of the cylinder 2 14-2 and playing a protective role.

[0056] The driving fixing member 23 includes an air cylinder 23-1 fixed on the fixing plate 13-1, the air cylinder 23-1 passes through the fixing plate 13-1 and is fixedly connected thereto, the reinforcement plate 13-6 is sleeved on the surface of the air cylinder 23-1 and is slidably connected thereto, the upper end of the air cylinder 23-1 is slidably connected to a rotating tube 23-2, the upper end of the rotating tube 23-2 passes through the supporting plate 13-3 and is fixed to the bottom of the rotating shell 21, the upper end of the rotating tube 23-2 is communicated with the bottom of the rotating shell 21, a guide groove 23-3 is provided on the surface of the rotating tube 23-2, a guide column 23-4 is fixed to the inner wall of the air cylinder 23-1, and one end slides in the guide groove 23-3, the lower end of the rotating tube 23-2 passes through the bottom of the piston 1 24 and is fixed with a limiting ring 23-5, the piston 1 24 slides on the inner wall of the air cylinder 23-1, and the two ends of the spring 1 25 are respectively fixed to the surface of the piston 1 24 and the inner wall of the air cylinder 23-1.

[0057] The guide groove 23-3 is divided into three parts, namely the upper end part, the middle part and the lower end part. When the guide column 23-4 moves in the upper end part and the lower end part on the guide groove 23-3 respectively, the rotating tube 23-2 cannot be rotated. When the guide column 23-4 moves in the middle part on the guide groove 23-3, the rotating tube 23-2 can be rotated. The piston 1 24 is sealed between the air cylinder 23-1 and the rotating tube 23-2 respectively to ensure the seal and prevent the gas from leaking from the gap therebetween during operation. When the jacking assembly 13 does not jack up the inverter, the piston 1 24 is located in the middle upper part of the air cylinder 23-1, and the driving fixing part 23 is in a retracted state. At this time, the guide column 23-4 is located in the upper end part of the guide groove 23-3 on the rotating tube 23-2, and the limit ring 23-5 and the lower end of the rotating tube 23-2 are located in the lower position of the air cylinder 23-1.

[0058] Through the setting of the limit ring 23-5, during the process of the jacking component 13 lifting the inverter, the support plate 13-3 drives the rotating shell 21 and the rotating tube 23-2 to move upward, and then the limit ring 23-5 moves upward, and the guide column 23-4 first moves in the upper end part of the guide groove 23-3, so that the rotating tube 23-2 and the rotating shell 21 will not rotate. During this process, the inverter on the conveying component 12 is initially lifted and disengaged. When the guide column 23-4 transitions to the middle part of the guide groove 23-3 and moves, the rotating tube 23-2, the rotating shell 21 and the rubber ring 22 are rotated, and adjustments are made during the process of lifting the inverter.

[0059] When the guide post 23-4 transitions to the lower end portion of the guide groove 23-3 and moves, the rotating tube 23-2, the rotating shell 21 and the rubber ring 22 will not rotate. At this time, the limit ring 23-5 contacts the bottom of the piston 24. As the rotating tube 23-2 moves upward, the limit ring 23-5 moves upward, causing the piston 24 to move upward, and then the gas in the space formed by the rubber ring 22, the rotating shell 21 and the inverter is sucked into a part of the air cylinder 23-1, so that the rubber ring 22 acts as a suction cup and seals. Through the setting of the spring 25, it is stretched after the piston 24 rises, and the elastic force generated provides the force for the piston 24 to return to its original position. Example 3

[0060] Reference Figures 8 to 17 , which is the third embodiment of the present invention, is based on the first two embodiments.

[0061] Specifically, the fitting 32 includes a cylinder 32-1 fixed on the mounting frame 31, the cylinder 32-1 passes through the mounting frame 31 and is fixedly connected thereto, a piston 2 32-2 slides in the cylinder 32-1, a round rod 32-3 slides at one end of the cylinder 32-1, one end of which passes through the inner cavity of the cylinder 32-1 and is fixed to the surface of the piston 2 32-2, and the other end of which is embedded with a ball 32-4, and a seal is made between the surface of the piston 2 32-2 and the inner wall of the cylinder 32-1 to prevent liquid from leaking from the gap between them when the piston 2 32-2 moves, the round rod 32-3 passes through the cylinder 32-1 and is slidably connected thereto, and the ball 32-4 is rotatably connected to one end of the round rod 32-3. Through the setting of the ball 32-4, after it moves and contacts the side of the inverter, the obstruction to the inverter is reduced during the continued lifting process, and the lifting and lowering are carried out smoothly.

[0062] A spring piece 1 32-5 is fixed between the surface of the second piston 32-2 and the inner wall of the cylinder 32-1. Due to the setting of the spring piece 1 32-5, it is deformed after the second piston 32-2 moves, providing a certain force for the subsequent restoration of the second piston 32-2 after the valve member 33 is unlocked. A connecting hole 32-6 is provided at one end of the cylinder 32-1, and the cylinder 32-1 and the valve member 33 are connected through the connecting hole 32-6. A limiting groove 32-7 is provided on the outer surface of the round rod 32-3, and a limiting block 32-8 is fixed on the cylinder 32-1, and it slides in the limiting groove 32-7. Through the setting of the limiting block 32-8 and the limiting groove 32-7, the round rod 32-3 is limited and guided, and then the second piston 32-2 is limited and guided, so that the round rod 32-3 and the second piston 32-2 will not rotate during the movement.

[0063] When the two side surfaces of the inverter to be inspected are regular planes, it is only necessary to place the trigger rod 36-2 on the limit adjustment member 36 in the second part of the guide hole 35 in the guide plate 34, limit the valve member 33 so that it is in a closed state, and control the operation of the clamping assembly 14 to push the fitting member 32 to clamp and fix the lifted inverter. When the two side surfaces of the inverter to be inspected are irregular, place the trigger rod 36-2 on the limit adjustment member 36 in the first part of the guide hole 35 in the guide plate 34, control the operation of the clamping assembly 14 to drive the fitting member 32 to move, contact and act with the surface of the inverter, so that the corresponding round rod 32-3 moves in the cylinder 32-1, and then the piston 2 32-2 moves in the cylinder 32-1, squeezing the liquid to open the valve member 33, and press the excess liquid into the liquid bag 37.

[0064] The clamping assembly 14 is controlled to stop, and the trigger rod 36-2 is placed in the second part of the guide hole 35 in the guide plate 34, and the valve member 33 is limited so that it is in a closed state, thereby limiting the piston 2 32-2 and the round rod 32-3, so that the track formed by the multiple fitting parts 32 is fitted with the side of the inverter, which is convenient for subsequent inverters of the same specifications to be clamped, fitted and fixed. When it is necessary to release the formed track, the trigger rod 36-2 on the limit adjustment part 36 is transitioned from the second part of the guide hole 35 to the third part for movement, which can open the valve members 33 on the multiple groups of fitting parts 32 on one side, and the liquid in the liquid bag 37 is pressed into the fitting part 32 to reset it.

[0065] The valve member 33 includes a valve housing 33-1 fixed to one end of the cylinder 32-1. A valve block 33-2 slides on the inner wall of the valve housing 33-1. A seal is performed between the valve block 33-2 and the valve housing 33-1 to prevent liquid from leaking from the gap between the valve block 33-2 and the valve housing 33-1 when the valve block 33-2 is closed. A valve stem 33-3 slides on the valve housing 33-1. The lower end of the valve stem 33-3 passes through the inner cavity of the valve housing 33-1 and is fixed to the top of the valve block 33-2. The upper end of the valve stem 33-3 is fixed to the surface of the guide plate 34. A spring 33-4 is sleeved on the upper end surface of the valve stem 33-3, and its two ends are respectively fixed to the surface of the guide plate 34 and the surface of the valve block 33-2.

[0066] A slope is provided on one side of the valve block 33-2. With this arrangement, when the trigger block 39-7 is located in the first part of the guide hole 35 on the guide plate 34, the second piston 32-2 in the cylinder 32-1 moves to push the liquid to apply pressure to the valve block 33-2, which can cause the valve block 33-2 to move upward, so that the cylinder 32-1 and the hose 38 are connected. Moreover, when the valve block 33-2 is closed, the liquid in the hose 38 applies pressure to the valve block 33-2 without causing the valve block 33-2 to open. Due to the arrangement of the second spring 33-4, after the valve block 33-2 and the valve stem 33-3 move, they are stretched and deformed, providing a force for subsequent resetting.

[0067] The limit adjustment member 36 includes a sliding sleeve 36-1 mounted on the mounting frame 31. The sliding sleeve 36-1 is slidably mounted on the surface of the mounting frame 31. A trigger rod 36-2 is fixed to the sliding sleeve 36-1, and the guide plate 34 is mounted on its surface. A card slot 36-3 is provided on the inner surface of the sliding sleeve 36-1. Through the arrangement of the card slot 36-3 and the card block 36-5, when the sliding sleeve 36-1 moves and drives the trigger rod 36-2 to move and be placed in the second part of the guide hole 35, the card block 36-5 is inserted into the card slot 36-3, limiting the sliding sleeve 36-1 and the trigger rod 36-2 to prevent them from moving back.

[0068] A groove 36-4 is provided in the mounting frame 31, and a block 36-5 slides in the groove 36-4 and cooperates with the groove 36-3. A slope is provided on one side of the block 36-5. After the block 36-5 is inserted into the groove 36-3, force can be applied to the sliding sleeve 36-1 to squeeze the block 36-5 to move it into the groove 36-4. When the trigger rod 36-2 transitions from the second part to the third part of the guide hole 35 on the guide plate 34 and moves, the valve member 33 on the multiple groups of fitting members 32 on one side can be opened.

[0069] A handle 36-7 is sliding on the sliding sleeve 36-1, and its two ends are fixed to the bottom of the block 36-5. By setting the handle 36-7, pulling it drives the block 36-5 to move into the groove 36-4, releasing the limit on the sliding sleeve 36-1. Spring three 36-8 is sleeved on the surfaces of both ends of the handle 36-7, and its two ends are respectively fixed to the surface of the block 36-5 and the inner wall of the groove 36-4. A spring second 36-9 is fixed between the surface of the sliding sleeve 36-1 and the surface of the mounting bracket 31. By setting the spring second 36-9, it is deformed by force as the sliding sleeve 36-1 moves. After the sliding sleeve 36-1 is released from the limit, it provides a force for the sliding sleeve 36-1 and the trigger rod 36-2 to reset.

[0070] A square groove 36-10 is provided on the inner wall of the groove 36-4, and a square block 36-6 is fixed on the block 36-5, and the block 36-6 slides in the square groove 36-10. Through the setting of the spring three 36-8, when the handle 36-7 pulls the block 36-5 to move, it is compressed, providing a force for the reset of the block 36-5 and the handle 36-7, and the block 36-5 is guided and limited through the square groove 36-10 and the square block 36-6. Example 4

[0071] Reference Figures 14 to 17 , which is the fourth embodiment of the present invention, and is based on the first three embodiments.

[0072] Specifically, a reinforcement 39 is installed on the cylinder 32-1, and the reinforcement 39 cooperates with the trigger rod 36-2, including a groove body 39-1 opened in the cylinder 32-1, and a driving plate 39-2 and a movable block 39-3 slide in the groove body 39-1 respectively, and the driving plate 39-2 and the movable block 39-3 cooperate with each other. The driving plate 39-2 and the movable block 39-3 are both provided with an inclined surface at the end close to the contact. Through such a setting, when the driving plate 39-2 moves, the movable block 39-3 can be squeezed to move downward. A pressure block 39-4 is fixed to the lower end of the movable block 39-3, and a rubber pad 39-5 is fixed to the bottom of the pressure block 39-4.

[0073] Through the setting of the rubber pad 39-5, when the movable block 39-3 moves downward and drives the pressure block 39-4 to move downward, it moves downward and contacts the surface of the round rod 32-3, thereby reinforcing the position of the adjusted round rod 32-3 on the cylinder 32-1. Due to its compressible characteristics, as the driving plate 39-2 moves, it acts on the movable block 39-3, causing the pressure block 39-4 to continue to move downward to compress the rubber pad 39-5, which will not hinder the continued movement of the driving plate 39-2. The trigger block 39-7 is sleeved on the surface of the short rod 39-6 and is rotatably connected to it.

[0074] The driving plate 39-2 is located outside the cylinder 32-1 and is fixed with a short rod 39-6 at one end. A trigger block 39-7 rotates on the short rod 39-6. A torsion spring 39-8 is sleeved on the surface of the short rod 39-6, and its two ends are respectively fixed between the surface of the short rod 39-6 and the surface of the trigger block 39-7. A support rod 39-9 is fixed at one end of the driving plate 39-2 and is in contact with the surface of the trigger block 39-7.

[0075] Through the setting of the trigger block 39-7, when the trigger rod 36-2 moves to the second part of the guide hole 35 on the guide plate 34, force is applied to it, thereby causing the drive plate 39-2 to move and act on the movable block 39-3, so that the rubber pad 39-5 fixes the round rod 32-3. When the trigger rod 36-2 transitions from the second part of the guide hole 35 to the third part for movement, it can continue to push the trigger block 39-7 and the drive plate 39-2 to move until they are disengaged. When the trigger rod 36-2 moves from the third part of the guide hole 35 to the second part, it can push the trigger block 39-7 to rotate upward without affecting the movement. The torsion spring 39-8 provides a reset force for the rotated trigger block 39-7, and the support rod 39-9 limits the trigger block 39-7 so that it cannot rotate downward and can only rotate upward.

[0076] A slide groove 39-10 is provided in the groove body 39-1, and a slider 39-11 is fixed on the driving plate 39-2, and the slider 39-11 slides in the slide groove 39-10. The driving plate 39-2 is guided and limited by the slide groove 39-10 and the slider 39-11. A spring four 39-12 is fixed between the surface of the slider 39-11 and the inner wall of the slide groove 39-10. Through the setting of the spring four 39-12, when the driving plate 39-2 moves and drives the slider 39-11 to move, it is compressed, providing a force for the slider 39-11 and the driving plate 39-2 to reset.

[0077] A positioning groove 39-13 is provided in the groove body 39-1, and a positioning block 39-14 is fixed on the movable block 39-3, and the positioning block 39-14 slides in the positioning groove 39-13. The movable block 39-3 is guided and limited by the positioning groove 39-13 and the positioning block 39-14. A spring five 39-15 is fixed between the surface of the positioning block 39-14 and the inner wall of the positioning groove 39-13. Through the setting of the spring five 39-15, when the movable block 39-3 moves and drives the positioning block 39-14 to move, it is compressed, providing a force for the reset of the positioning block 39-14 and the movable block 39-3. Example 5

[0078] Reference Figure 1 、 Figure 3 、 Figure 4 、 Figure 18 and Figure 19 , which is the fifth embodiment of the present invention, and is based on the previous four embodiments.

[0079] Specifically, a photoelectric sensor 17 is installed on the conveying component 12, a buffer limiter 18 is installed on the platform 11, and a chassis 19 is fixed on the top of the platform 11. The buffer limiter 18 includes a cylinder three 18-1 fixed on the platform 11, and a connecting block 18-2 is provided on the output end of the cylinder three 18-1. A damper 18-3 is embedded in the output end of the cylinder three 18-1. A cross bar 18-4 is rotated on the connecting block 18-2, and a rotating block 18-5 is provided on the surface of the cross bar 18-4. A fixed rod 18-6 is fixed on the rotating block 18-5, and a roller 18-7 is rotated on the fixed rod 18-6. Both ends of the cross bar 18-4 are provided with a torsion spring two 18-8, and its two ends are respectively fixed to the surface of the cross bar 18-4 and the surface of the rotating block 18-5. A sliding limit rod 18-9 is provided on the connecting block 18-2, and its lower end is fixed to the surface of the cylinder three 18-1.

[0080] The deceleration signal is triggered by the photoelectric sensor 17 to decelerate the conveying assembly 12. A plurality of rollers 18-7 are provided on a fixed rod 18-6. After the inverter is conveyed into the detection device, it contacts the roller 18-7 to apply force to the fixed rod 18-6, thereby rotating the fixed rod 18-6 and the rotating block 18-5. The connecting block 18-2 is buffered by the damper 18-3, and then the inverter is buffered and limited by the round rod 32-3 and the roller 18-7. The connecting block 18-2 is guided and limited by the limit rod 18-9 to prevent it from rotating. The setting of the torsion spring 18-8 provides a reset force for the rotated cross bar 18-4 and the rotating block 18-5. After jacking, the buffer limiter 18 retracts, so that the inverter after the detection is completed is discharged smoothly. After discharge, it moves up again to buffer and limit the next inverter.

[0081] The detection mechanism 1 also includes a dynamic compensation positioning system, which monitors the workpiece position in real time through a laser displacement sensor (sampling rate 1kHz), and uses a PID closed-loop control algorithm to dynamically adjust the lifting cylinder pressure value (0.2-0.6MPa). Multi-spectral fusion detection technology is used to develop a dual-wavelength detection solution (visible light + near-infrared light). Screw detection: Identification through metal reflective characteristics (threshold setting ΔL≥15), number tube detection: OCR character recognition (accuracy ≥99.7%) + HSV color space analysis (ΔH≤3°) is used, which improves detection efficiency and reduces labor costs; the screw missed detection rate is extremely low, and the number tube misjudgment rate is extremely small; the modular design of the equipment supports rapid model change and is compatible with 5-30kW inverter product detection, which is existing technology. The working principles of this part are all existing technology, which can be clearly understood by those skilled in the art and will not be elaborated here.

[0082] When in use, the triple-speed chain of the conveying component 12 conveys the workpiece at 0.5m / s, triggers a deceleration signal through the photoelectric sensor 17, and after conveying it into the device, the inverter is buffered and limited by the buffer limiter 18, and the operation of the jacking component 13 is controlled to jack up the inverter. At the same time, during the jacking process, the adjustment mechanism 2 is driven, and the rubber ring 22 on the adjustment mechanism 2 in the jacking process sequentially buffers, supports, adjusts and initially fixes the inverter by adsorption.

[0083] To control the operation of the clamping assembly 14, when the two side surfaces of the inverter to be inspected are regular planes, it is only necessary to place the trigger rod 36-2 on the limit adjustment member 36 in the second part of the guide hole 35 in the guide plate 34, and limit the valve member 33 to make it in a closed state, so as to control the operation of the clamping assembly 14 to push the fitting member 32 to clamp and fix the lifted inverter.

[0084] When the two side surfaces of the inverter to be inspected are irregular, the trigger rod 36-2 on the limit adjustment member 36 is placed in the first part of the guide hole 35 in the guide plate 34, and the operation of the clamping assembly 14 is controlled to drive the fitting member 32 to move, contact and act with the surface of the inverter, so that the corresponding round rod 32-3 moves in the cylinder 32-1, and then the piston 2 32-2 moves in the cylinder 32-1, squeezing the liquid to open the valve member 33.

[0085] Excess liquid is pressed into the liquid bag 37, the clamping assembly 14 is controlled to stop, the trigger rod 36-2 is placed in the second part of the guide hole 35 in the guide plate 34, the valve component 33 is limited to be in a closed state, and then the piston 2 32-2 and the round rod 32-3 are limited, so that the track formed by the multiple fitting parts 32 fits with the side of the inverter, which is convenient for subsequent inverters of the same specifications to be clamped, fitted and fixed. The products are clamped synchronously on both sides, and the three-axis robot 15 is controlled to drive the visual inspection module 16 to perform a global scan. When a suspected defect is found, the area array CMOS is switched to perform local macro shooting to achieve visual inspection of the inverter.

[0086] In summary, with the cooperation of the clamping assembly 14, the fitting mechanism 3 can fit the curved surface / special-shaped side of the inverter during clamping. Compared with the existing technology, there will be no local force concentration or suspension, the clamping is stable, the clamping force is evenly distributed and it is not easy to cause shaking. With the cooperation of the lifting assembly 13, the adjustment mechanism 2 can adjust and adsorb the inverter for preliminary fixation, so that the subsequent fitting mechanism 3 can fit, clamp and fix the inverter more accurately.

[0087] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A visual inspection-based inspection device for inverter assembly, characterized by: include, A detection mechanism (1) comprises a platform (11), wherein a conveying assembly (12), a lifting assembly (13), a clamping assembly (14) and a three-axis robot (15) are respectively installed on the platform (11), wherein the conveying assembly (12) is located on both sides of the lifting assembly (13), the clamping assembly (14) is located on one side of the conveying assembly (12), a visual detection module (16) is installed on the three-axis robot (15), and a buffer limiter (18) is installed on the platform (11); and An adjusting mechanism (2) is mounted on the lifting assembly (13), comprising a rotating shell (21) rotating on the lifting assembly (13), a rubber ring (22) being fixed in the rotating shell (21), a driving fixing member (23) being mounted on the lifting assembly (13) and arranged on the rotating shell (21), a piston (24) and a spring (25) being respectively mounted in the driving fixing member (23), and two ends of the spring (25) being respectively fixed to the piston (24) and the driving fixing member (23); and, The fitting mechanism (3) is mounted on the clamping assembly (14), and comprises a mounting frame (31) and a liquid capsule (37) fixed on the clamping assembly (14); a fitting member (32) is fixed on the mounting frame (31); one end of the fitting member (32) is connected to a valve member (33); a guide plate (34) is fixed to the upper end of the valve member (33); a guide hole (35) is provided on the guide plate (34); a limit adjustment member (36) is mounted on the mounting frame (31) and cooperates with the guide plate (34); a hose (38) is connected between the liquid capsule (37) and the valve member (33).

2. The inverter assembly inspection device based on visual inspection according to claim 1, characterized in that: The lifting assembly (13) includes a fixed plate (13-1) fixed on the platform (11), a cylinder 1 (13-2) fixed on the fixed plate (13-1), a support plate (13-3) fixed to the output end of the cylinder 1 (13-2), a guide sleeve 1 (13-4) fixed on the fixed plate (13-1), a guide rod 1 (13-5) sliding inside the guide sleeve 1 (13-4), the upper end of which is fixed to the bottom of the support plate (13-3), and the lower end of which is fixed to a reinforcement plate (13-6), the rotating shell (21) is rotatably connected to the top of the support plate (13-3), and the driving fixing member (23) is installed on the fixed plate (13-1) and the rotating shell (21).

3. The inverter assembly inspection device based on visual inspection according to claim 1, characterized in that: The clamping assembly (14) comprises a mounting plate (14-1) fixed on the platform (11), a second cylinder (14-2) being fixed on one side of the mounting plate (14-1), a movable plate (14-3) being fixed on the output end of the second cylinder (14-2), a second guide sleeve (14-4) being fixed on the mounting plate (14-1), a second guide rod (14-5) sliding inside the second guide sleeve (14-4), one end of which is fixed to one side of the movable plate (14-3), and the mounting frame (31) being fixed to one side of the movable plate (14-3).

4. The inverter assembly inspection device based on visual inspection according to claim 2, characterized in that: The driving fixing member (23) includes an air cylinder (23-1) fixed on a fixing plate (13-1), the upper end of the air cylinder (23-1) is slidably connected to a rotating tube (23-2), the upper end of the rotating tube (23-2) passes through the support plate (13-3) and is fixed to the bottom of the rotating shell (21), a guide groove (23-3) is provided on the surface of the rotating tube (23-2), a guide column (23-4) is fixed on the inner wall of the air cylinder (23-1), and one end slides in the guide groove (23-3), the lower end of the rotating tube (23-2) passes through the bottom of piston one (24) and is fixed with a limiting ring (23-5), the piston one (24) slides on the inner wall of the air cylinder (23-1), and the two ends of the spring one (25) are respectively fixed to the surface of piston one (24) and the inner wall of the air cylinder (23-1).

5. The inverter assembly inspection device based on visual inspection according to claim 3, characterized in that: The fitting part (32) includes a cylinder (32-1) fixed on the mounting frame (31), a second piston (32-2) sliding in the cylinder (32-1), a round rod (32-3) sliding at one end of the cylinder (32-1), one end of which penetrates the inner cavity of the cylinder (32-1) and is fixed to the surface of the second piston (32-2), and the other end of which is embedded with a ball (32-4), a spring piece (32-5) is fixed between the surface of the second piston (32-2) and the inner wall of the cylinder (32-1), a connecting hole (32-6) is opened at one end of the cylinder (32-1), a limiting groove (32-7) is opened on the outer surface of the round rod (32-3), and a limiting block (32-8) is fixed on the cylinder (32-1) and slides in the limiting groove (32-7).

6. The inverter assembly inspection device based on visual inspection according to claim 5, characterized in that: The valve member (33) includes a valve housing (33-1) fixed to one end of the cylinder (32-1), a valve block (33-2) sliding on the inner wall of the valve housing (33-1), a valve stem (33-3) sliding on the valve housing (33-1), the lower end of which penetrates the inner cavity of the valve housing (33-1) and is fixed to the top of the valve block (33-2), and the upper end of which is fixed to the surface of the guide plate (34), the upper end surface of the valve stem (33-3) is provided with a spring 2 (33-4), and the two ends of the valve stem (33-3) are respectively fixed to the surface of the guide plate (34) and the surface of the valve block (33-2).

7. The inverter assembly inspection device based on visual inspection according to claim 6, characterized in that: The limit adjustment member (36) comprises a sliding sleeve (36-1) sleeved on the mounting frame (31), a trigger rod (36-2) being fixed on the sliding sleeve (36-1), and a guide plate (34) being sleeved on the surface thereof, a card slot (36-3) being provided on the inner surface of the sliding sleeve (36-1), a groove (36-4) being provided in the mounting frame (31), a card block (36-5) sliding in the groove (36-4) and cooperating with the card slot (36-3).

8. The inverter assembly inspection device based on visual inspection according to claim 7, characterized in that: A handle (36-7) is slidably mounted on the sliding sleeve (36-1), and both ends of the handle (36-7) are fixed to the bottom of the clamping block (36-5). Springs (36-8) are sleeved on both end surfaces of the handle (36-7), and both ends of the handle (36-7) are respectively fixed to the surface of the clamping block (36-5) and the inner wall of the groove (36-4). A spring (36-9) is fixed between the surface of the sliding sleeve (36-1) and the surface of the mounting frame (31). A square groove (36-10) is formed on the inner wall of the groove (36-4). A square block (36-6) is fixed to the clamping block (36-5), and the square block (36-6) slides in the square groove (36-10).

9. The inverter assembly inspection device based on visual inspection according to claim 7, characterized in that: The cylinder (32-1) is provided with a reinforcement (39) which cooperates with the trigger rod (36-2) and includes a groove (39-1) provided in the cylinder (32-1). A driving plate (39-2) and a movable block (39-3) are respectively slidably provided in the groove (39-1). The driving plate (39-2) and the movable block (39-3) cooperate with each other. A pressing block (39-4) is fixed at the lower end of the movable block (39-3). A rubber A pad (39-5) is provided. A short rod (39-6) is fixed to one end of the drive plate (39-2) located outside the cylinder (32-1). A trigger block (39-7) is rotatably mounted on the short rod (39-6). A torsion spring (39-8) is sleeved on the surface of the short rod (39-6), with its two ends respectively fixed between the surface of the short rod (39-6) and the surface of the trigger block (39-7). A support rod (39-9) is fixed to one end of the drive plate (39-2) and contacts the surface of the trigger block (39-7).

10. The inverter assembly inspection device based on visual inspection according to claim 9, characterized in that: A sliding groove (39-10) is provided in the groove body (39-1), a slider (39-11) is fixed on the driving plate (39-2), and the slider slides in the sliding groove (39-10), a spring four (39-12) is fixed between the surface of the slider (39-11) and the inner wall of the sliding groove (39-10), a positioning groove (39-13) is provided in the groove body (39-1), a positioning block (39-14) is fixed on the movable block (39-3), and the slider slides in the positioning groove (39-13), and a spring five (39-15) is fixed between the surface of the positioning block (39-14) and the inner wall of the positioning groove (39-13).

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