Thread riveting tool for photovoltaic inverter cover

Abstract

The utility model discloses a photovoltaic inverter cover thread riveting tool, which comprises a top plate and a bottom plate, a photovoltaic inverter cover plate is fixed at the bottom of the top plate, a plurality of riveting holes are arranged in the photovoltaic inverter cover plate, a moving plate is arranged at the top of the bottom plate, a positioning plate is fixed on the upper surface of the moving plate, and the riveting holes are arranged in the positioning plate. Positioning blocks are symmetrically arranged on the four edges of the positioning plate respectively, a plurality of ejector rods are fixed to the positions, corresponding to the receding holes, of the upper surface of the bottom plate, an inserting column is arranged in the middle of the top of each ejector rod, and the surface of the inserting column is sleeved with the threaded sleeves. According to the photovoltaic inverter cover thread riveting tool provided by the utility model, the thread bushing is fixed in the riveting hole in an interference fit manner, so that the phenomenon of thread slipping can be effectively avoided, and the connection strength and the sealing performance between the photovoltaic inverter cover and equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic inverter processing, in particular to a thread riveting tool for a photovoltaic inverter cover. Background Art

[0002] A photovoltaic inverter is an electronic device that converts direct current generated by solar cell modules into alternating current. It requires a cover to protect the internal circuits and components to prevent the external environment from affecting the inverter. The cover of a photovoltaic inverter is usually made of materials such as aluminum or plastic, which can prevent moisture, dust and other contaminants from entering the inverter to ensure its normal operation. In addition, the cover can also prevent accidental contact with live parts inside the inverter to ensure safe use.

[0003] The existing photovoltaic inverter cover directly opens threaded holes on the photovoltaic inverter cover during the production process. Since the photovoltaic inverter cover is usually made of materials such as aluminum or plastic, the threaded holes are prone to slippage during actual use, resulting in poor connection strength and sealing performance between the photovoltaic inverter cover and the equipment. Therefore, a new solution to the above problem is needed. Utility Model Content

[0004] Based on this, it is necessary to provide a photovoltaic inverter cover thread riveting tool for the above technical problems, which uses a plug-in column to position the thread sleeve, and the thread sleeve is fixed inside the riveting hole by interference fit. The thread sleeve is fixed inside the riveting hole by a riveting process, which can effectively avoid the phenomenon of thread slippage and improve the connection strength and sealing performance between the photovoltaic inverter cover and the equipment.

[0005] The top plate and the photovoltaic inverter cover are driven to move downward by the output end of the hydraulic press. When the photovoltaic inverter cover reaches the position of the positioning block, the positioning block contacts the inner wall of the photovoltaic inverter cover, thereby positioning the photovoltaic inverter cover so that the threaded sleeve is aligned with the riveting hole. Then, the top plate and the photovoltaic inverter cover are driven to continue to move downward by the output end of the hydraulic press, and the movable plate and the positioning plate are driven to move downward, so that the threaded sleeve is fixed inside the riveting hole by an interference fit. Then, the top plate and the photovoltaic inverter cover are driven to move upward by the output end of the hydraulic press, so that the threaded sleeve is disengaged from the plug-in column, and the movable plate and the positioning plate are reset under the action of the spiral spring, thereby achieving the purpose of mass production.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A photovoltaic inverter cover thread riveting tool specifically includes: a top plate and a bottom plate, a photovoltaic inverter cover is fixed to the bottom of the top plate, and a plurality of riveting holes are opened inside the photovoltaic inverter cover;

[0008] A movable plate is arranged on the top of the bottom plate, four coil springs are evenly arranged between the movable plate and the bottom plate, the coil springs are located inside the movable plate and the positioning plate, a positioning plate is fixed on the upper surface of the movable plate, the positioning plate is located on the inner side of the photovoltaic inverter cover plate, and positioning blocks are symmetrically arranged on the four sides of the positioning plate;

[0009] A plurality of avoidance holes are provided inside the movable plate and the positioning plate at positions corresponding to the riveting holes, a plurality of ejector rods are fixed on the upper surface of the bottom plate at positions corresponding to the avoidance holes, the ejector rods are slidably connected inside the avoidance holes, and a plug-in column is provided at the middle position of the top of the ejector rod;

[0010] It also comprises a plurality of threaded sleeves, which are sleeved on the surface of the plug-in column.

[0011] As a preferred embodiment of the photovoltaic inverter cover threaded riveting tool provided by the utility model, four guide grooves are evenly distributed inside the movable plate and the positioning plate, and a plurality of guide rods are fixed on the upper surface of the base plate and located at positions corresponding to the guide grooves, and the guide rods are slidably connected inside the guide grooves.

[0012] As a preferred embodiment of the photovoltaic inverter cover threaded riveting tool provided by the utility model, preset holes are respectively opened at the four corners of the positioning plate, and a first bolt is arranged inside the preset hole. The first bolt is slidably connected to the movable plate, and the first bolt passes through the movable plate and is threadedly connected to the bottom plate.

[0013] As a preferred embodiment of the photovoltaic inverter cover threaded riveting tool provided by the utility model, the four sides of the positioning plate are respectively provided with connecting grooves, the interior of the connecting groove is detachably fixed with a connecting plate, and the positioning blocks are symmetrically fixed at both ends of the connecting plate.

[0014] As a preferred embodiment of the photovoltaic inverter cover threaded riveting tool provided by the utility model, positioning grooves are symmetrically opened inside the connecting groove, and positioning seats are symmetrically fixed on the connecting plate at positions corresponding to the positioning grooves. The positioning seats are inserted into the positioning grooves, and the positioning seats are fixed to the positioning grooves by a second bolt.

[0015] As a preferred embodiment of the photovoltaic inverter cover threaded riveting tool provided by the utility model, a mounting groove is fixed on the top of the push rod, a connecting seat is fixed on the bottom of the plug-in column, the connecting seat is slidably connected to the bottom of the inner wall of the mounting groove, a rubber ring is fixed on the outer wall of the plug-in column and located on the inner side of the mounting groove, the outer side of the mounting groove is threadedly connected to a top cover, and the end of the plug-in column away from the connecting seat passes through the top cover.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The plug column is used to position the threaded sleeve. The threaded sleeve is fixed inside the riveting hole by an interference fit method. The threaded sleeve is fixed inside the riveting hole through a riveting process, which can effectively avoid the phenomenon of thread slipping and improve the connection strength and sealing performance between the photovoltaic inverter cover and the device.

[0018] 2. The output end of the hydraulic press drives the top plate and the photovoltaic inverter cover plate to move downward. When the photovoltaic inverter cover plate reaches the position of the positioning block, the positioning block contacts the inner wall of the photovoltaic inverter cover plate to position the photovoltaic inverter cover plate, so that the threaded sleeve is aligned with the riveting hole. Then, the output end of the hydraulic press drives the top plate and the photovoltaic inverter cover plate to continue moving downward, and drives the moving plate and the positioning plate to move downward, so as to fix the threaded sleeve inside the riveting hole by an interference fit method. Then, the output end of the hydraulic press drives the top plate and the photovoltaic inverter cover plate to move upward, so that the threaded sleeve is separated from the plug column, and under the action of the spiral spring, the moving plate and the positioning plate are reset, thus achieving the purpose of mass production.

[0019] 3. When replacing the connecting plate, the positioning seat is inserted into the positioning groove for pre-positioning the connecting plate to avoid deviation in the position of the positioning block. Then, the positioning seat and the positioning groove are fastened by the second bolt to replace the connecting plate, which is beneficial to reducing production costs.

[0020] 4. The rubber ring is used to position the plug column so that the plug column always remains at the axis position of the ejector rod. The top cover facilitates the replacement of the worn plug column and rubber ring, improving the service life of the device. When there is a slight deviation in the positions of the riveting hole and the threaded sleeve, the threaded sleeve will displace, driving the plug column to move horizontally, so that the plug column is at the axis position of the riveting hole, avoiding severe friction between the threads inside the threaded sleeve and the outer wall of the plug column, thus reducing the impact on product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of the whole of the present utility model;

[0023] Figure 2This is a schematic structural diagram of the cover plate of the photovoltaic inverter of the present utility model;

[0024] Figure 3 This is a schematic structural diagram of the inner side of the cover plate of the photovoltaic inverter of the present utility model;

[0025] Figure 4 This is a schematic structural diagram of the separation of the moving plate and the bottom plate of the present utility model;

[0026] Figure 5 This is a schematic structural diagram of the separation of the connecting plate and the positioning plate of the present utility model;

[0027] Figure 6 This is a schematic exploded view of the top of the ejector rod of the present utility model.

[0028] The markings in the figure are explained as follows:

[0029] 1, top plate; 2, cover plate of photovoltaic inverter; 3, moving plate; 4, bottom plate; 5, riveting hole; 6, threaded sleeve; 7, ejector rod; 8, positioning plate; 9, positioning block; 10, connecting plate; 11, guide groove; 12, guide rod; 13, helical spring; 14, insertion column; 15, avoidance hole; 16, connection groove; 17, top cover; 18, rubber ring; 19, installation groove; 20, connection seat; 21, first bolt; 22, preset hole; 23, positioning groove; 24, positioning seat; 25, second bolt. Specific embodiments

[0030] These are not all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] In order to enable those in the technical field to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings.

[0032] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0033] Embodiment 1

[0034] Please refer to Figure 1-5 ,

[0035] It includes a top plate 1 and a bottom plate 4. The top plate 1 is used to be fixed to the output end of a hydraulic press, and the bottom plate 4 is used to be fixed to the workbench of the hydraulic press. A photovoltaic inverter cover plate 2 is fixed to the bottom of the top plate 1. A number of riveting holes 5 are formed inside the photovoltaic inverter cover plate 2. A moving plate 3 is arranged on the top of the bottom plate 4. Four helical springs 13 are evenly arranged between the moving plate 3 and the bottom plate 4. The helical springs 13 are located inside the moving plate 3 and the positioning plate 8. The helical springs 13 are used to provide an upward elastic force to the moving plate 3. A positioning plate 8 is fixed to the upper surface of the moving plate 3. The positioning plate 8 is located inside the photovoltaic inverter cover plate 2. Positioning blocks 9 are symmetrically arranged on the four sides of the positioning plate 8 respectively. The positioning blocks 9 on the positioning plate 8 are used to position the photovoltaic inverter cover plate 2, so that the threaded sleeve 6 accurately aligns with the riveting hole 5. A number of avoidance holes 15 are formed inside the moving plate 3 and the positioning plate 8 and at the positions corresponding to the riveting holes 5. A number of ejector rods 7 are fixed to the upper surface of the bottom plate 4 and at the positions corresponding to the avoidance holes 15. The ejector rods 7 are slidably connected inside the avoidance holes 15. An insertion column 14 is arranged at the middle position of the top of the ejector rod 7. It also includes a number of threaded sleeves 6. The threaded sleeves 6 are sleeved on the surface of the insertion column 14. Specifically, there is a clearance fit connection between the threaded sleeve 6 and the insertion column 14. The insertion column 14 is used to position the threaded sleeve 6. The threaded sleeve 6 is fixed inside the riveting hole 5 by an interference fit method. By using a riveting process to fix the threaded sleeve 6 inside the riveting hole 5, the phenomenon of thread slipping can be effectively avoided, and the connection strength and sealing performance between the photovoltaic inverter cover and the equipment can be improved;

[0036] When the threaded sleeve 6 is fixed inside the riveting hole 5, the threaded sleeve 6 is sleeved on the insertion column 14. The output end of the hydraulic press drives the top plate 1 and the photovoltaic inverter cover plate 2 to move downward. When the photovoltaic inverter cover plate 2 reaches the position of the positioning block 9, the positioning block 9 contacts the inner wall of the photovoltaic inverter cover plate 2, thereby positioning the photovoltaic inverter cover plate 2 and making the threaded sleeve 6 align with the riveting hole 5. Then, the output end of the hydraulic press drives the top plate 1 and the photovoltaic inverter cover plate 2 to continue moving downward, and drives the moving plate 3 and the positioning plate 8 to move downward, thereby fixing the threaded sleeve 6 inside the riveting hole 5 by an interference fit method. Then, the output end of the hydraulic press drives the top plate 1 and the photovoltaic inverter cover plate 2 to move upward, so that the threaded sleeve 6 is separated from the insertion column 14, and under the action of the helical spring 13, the moving plate 3 and the positioning plate 8 are reset, so as to achieve the purpose of mass production;

[0037] Four guide grooves 11 are evenly formed inside the moving plate 3 and the positioning plate 8. A number of guide rods 12 are fixed to the upper surface of the bottom plate 4 and at the positions corresponding to the guide grooves 11. The guide rods 12 are slidably connected inside the guide grooves 11. Specifically, the guide rods 12 are slidably connected inside the guide grooves 11 to guide the moving plate 3;

[0038] Preset holes 22 are respectively formed at the four corners of the positioning plate 8. A first bolt 21 is arranged inside the preset hole 22. The first bolt 21 is slidably connected to the moving plate 3. The first bolt 21 passes through the moving plate 3 and is threadedly connected to the bottom plate 4. Specifically, the first bolt 21 is used to limit the moving plate 3 and the positioning plate 8.

[0039] Embodiment 2

[0040] A photovoltaic inverter cover thread riveting and pressing tooling provided in Embodiment 1 is further optimized. Specifically, as Figure 3-5 shown,

[0041] Connecting grooves 16 are respectively formed on the four sides of the positioning plate 8. A connecting plate 10 is detachably fixed inside the connecting groove 16. Positioning blocks 9 are symmetrically fixed at both ends of the connecting plate 10. Specifically, the positioning blocks 9 will be worn during long-term use. Since the positioning of the photovoltaic inverter cover plate 2 will be deviated after the positioning blocks 9 are worn, when the positioning blocks 9 are worn to a certain extent, the moving plate 3 and the positioning plate 8 need to be replaced as a whole. In this device, through the detachable connecting plate 10, when the positioning blocks 9 are worn, the connecting plate 10 and the positioning blocks 9 can be directly replaced, which is beneficial to reducing production costs;

[0042] Positioning grooves 23 are symmetrically formed inside the connecting groove 16. Positioning seats 24 are symmetrically fixed at positions of the connecting plate 10 corresponding to the positioning grooves 23. The positioning seats 24 are inserted into the positioning grooves 23. The positioning seats 24 and the positioning grooves 23 are fixed by second bolts 25. Specifically, when replacing the connecting plate 10, the positioning seats 24 are inserted into the positioning grooves 23 for pre-positioning the connecting plate 10 to avoid deviation of the positions of the positioning blocks 9, and then the positioning seats 24 and the positioning grooves 23 are tightened by the second bolts 25, so as to replace the connecting plate 10.

[0043] Embodiment 3

[0044] A photovoltaic inverter cover thread riveting and pressing tooling provided in Embodiment 1 is further optimized. Specifically, as Figure 6 shown,

[0045] The top of the ejector rod 7 is fixed with an installation groove 19, the bottom of the insertion column 14 is fixed with a connecting seat 20, the connecting seat 20 is slidably connected to the bottom of the inner wall of the installation groove 19, a rubber ring 18 is fixed on the outer wall of the insertion column 14 and inside the installation groove 19, and the rubber ring 18 is connected with an interference fit between the insertion column 14 and the inner wall of the installation groove 19. The outside of the installation groove 19 is threadedly connected with a top cover 17, and one end of the insertion column 14 away from the connecting seat 20 penetrates through the top cover 17, and the insertion column 14 is connected with a clearance fit between the insertion column 14 and the top cover 17. Specifically, when there is a slight deviation in the positions of the threaded sleeve 6 and the riveting hole 5, the common practice in the industry is to compensate for the deviation through the chamfers provided at both ends of the threaded sleeve 6 and the inner side of the riveting hole 5. Under the action of the chamfers, the threaded sleeve 6 undergoes a slight displacement, facilitating the smooth entry of the threaded sleeve 6 into the interior of the riveting hole 5. Although the problem of deviation between the riveting hole 5 and the threaded sleeve 6 is solved, when the threaded sleeve 6 undergoes displacement, the threads inside the threaded sleeve 6 will experience intense friction with the outer wall of the insertion column 14, causing damage to the threads inside the threaded sleeve 6 and having a certain impact on the product quality. By sliding the connecting seat 20 at the bottom of the inner wall of the installation groove 19, the connecting seat 20 and the insertion column 14 can move horizontally inside the installation groove 19. The rubber ring 18 is used to position the insertion column 14, ensuring that the insertion column 14 always remains at the axial center position of the ejector rod 7. The top cover 17 facilitates the replacement of the worn insertion column 14 and rubber ring 18, extending the service life of the device. When there is a slight deviation in the positions of the riveting hole 5 and the threaded sleeve 6, the threaded sleeve 6 will undergo displacement, driving the insertion column 14 to move horizontally, positioning the insertion column 14 at the axial center position of the riveting hole 5, and avoiding intense friction between the threads inside the threaded sleeve 6 and the outer wall of the insertion column 14, thereby reducing the impact on the product quality. When the insertion column 14 is separated from the threaded sleeve 6, the rubber ring 18 causes the insertion column 14 to reset and return to the axial center position of the ejector rod 7.

[0046] The usage process of a photovoltaic inverter cover thread riveting tooling provided by the present utility model is as follows:

[0047] Technical principle: The insertion column 14 is used to position the threaded sleeve 6, and the threaded sleeve 6 is fixed inside the riveting hole 5 through an interference fit method. By using a riveting process to fix the threaded sleeve 6 inside the riveting hole 5, the phenomenon of thread slipping can be effectively avoided, and the connection strength and sealing performance between the photovoltaic inverter cover and the device can be improved;

[0048] When the threaded sleeve 6 is fixed inside the riveting hole 5, the threaded sleeve 6 is sleeved on the plug post 14. The output end of the hydraulic press drives the top plate 1 and the photovoltaic inverter cover plate 2 to move downward. When the photovoltaic inverter cover plate 2 reaches the position of the positioning block 9, it contacts the inner wall of the photovoltaic inverter cover plate 2 through the positioning block 9, thereby positioning the photovoltaic inverter cover plate 2, making the threaded sleeve 6 align with the riveting hole 5. Then, the output end of the hydraulic press drives the top plate 1 and the photovoltaic inverter cover plate 2 to continue moving downward, and drives the moving plate 3 and the positioning plate 8 to move downward, thereby fixing the threaded sleeve 6 inside the riveting hole 5 by interference fit. Then, the output end of the hydraulic press drives the top plate 1 and the photovoltaic inverter cover plate 2 to move upward, so that the threaded sleeve 6 is separated from the plug post 14, and under the action of the spiral spring 13, the moving plate 3 and the positioning plate 8 are reset, thus achieving the purpose of mass production;

[0049] The positioning block 9 will wear during long-term use. Since the positioning of the photovoltaic inverter cover plate 2 is deviated after the positioning block 9 wears, when the positioning block 9 wears to a certain extent, the entire moving plate 3 and the positioning plate 8 need to be replaced. When replacing the connecting plate 10, the positioning seat 24 is inserted into the positioning groove 23 for pre-positioning the connecting plate 10 to avoid deviation of the position of the positioning block 9. Then, the positioning seat 24 and the positioning groove 23 are fastened by the second bolt 25, thereby replacing the connecting plate 10, which is beneficial to reducing production costs;

[0050] When there is a slight deviation in the positions of the threaded sleeve 6 and the riveting hole 5, the common practice in the industry is to compensate for the deviation by chamfers provided at both ends of the threaded sleeve 6 and the inner side of the riveting hole 5. Under the action of the chamfers, the threaded sleeve 6 undergoes a slight displacement, facilitating the smooth entry of the threaded sleeve 6 into the interior of the riveting hole 5. Although the problem of deviation between the riveting hole 5 and the threaded sleeve 6 is solved, when the threaded sleeve 6 is displaced, the threads inside the threaded sleeve 6 will rub violently against the outer wall of the plug post 14, causing damage to the threads inside the threaded sleeve 6 and having a certain impact on the product quality. By slidingly connecting the connecting seat 20 to the bottom of the inner wall of the installation groove 19, the connecting seat 20 and the plug post 14 can move horizontally inside the installation groove 19. The rubber ring 18 is used to position the plug post 14, keeping the plug post 14 always at the position of the axis of the ejector rod 7. The top cover 17 facilitates the replacement of the worn plug post 14 and rubber ring 18, improving the service life of the device. When there is a slight deviation in the positions of the riveting hole 5 and the threaded sleeve 6, the threaded sleeve 6 will be displaced, driving the plug post 14 to move horizontally, so that the plug post 14 is at the axis position of the riveting hole 5, avoiding the violent friction between the threads inside the threaded sleeve 6 and the outer wall of the plug post 14, thereby reducing the impact on the product quality. When the plug post 14 is separated from the threaded sleeve 6, the rubber ring 18 causes the plug post 14 to reset and return to the axis position of the ejector rod 7 again.

[0051] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. The accompanying drawings show the preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields is similarly within the scope of the patent protection of the present invention.

Claims

1. A thread riveting tool for a photovoltaic inverter cover, characterized in that: It comprises a top plate (1) and a bottom plate (4), a photovoltaic inverter cover plate (2) being fixed to the bottom of the top plate (1), and a plurality of riveting holes (5) being provided inside the photovoltaic inverter cover plate (2); A movable plate (3) is arranged on the top of the bottom plate (4), four coil springs (13) are evenly arranged between the movable plate (3) and the bottom plate (4), the coil springs (13) are located inside the movable plate (3) and the positioning plate (8), a positioning plate (8) is fixed on the upper surface of the movable plate (3), the positioning plate (8) is located on the inner side of the photovoltaic inverter cover plate (2), and positioning blocks (9) are symmetrically arranged on the four sides of the positioning plate (8); A plurality of avoidance holes (15) are provided inside the movable plate (3) and the positioning plate (8) and at positions corresponding to the riveting holes (5); a plurality of ejector rods (7) are fixed on the upper surface of the bottom plate (4) and at positions corresponding to the avoidance holes (15); the ejector rods (7) are slidably connected inside the avoidance holes (15); and a plug-in column (14) is provided at the middle position of the top of the ejector rod (7); It also comprises a plurality of threaded sleeves (6), wherein the threaded sleeves (6) are sleeved on the surface of the plug-in column (14).

2. A photovoltaic inverter cover thread riveting tool according to claim 1, characterized in that: Four guide grooves (11) are evenly distributed inside the movable plate (3) and the positioning plate (8), and a plurality of guide rods (12) are fixed on the upper surface of the bottom plate (4) at positions corresponding to the guide grooves (11), and the guide rods (12) are slidably connected inside the guide grooves (11).

3. The photovoltaic inverter cover thread riveting tool according to claim 1, characterized in that: Preset holes (22) are respectively provided at the four corners of the positioning plate (8), and first bolts (21) are arranged inside the preset holes (22). The first bolts (21) are slidably connected to the movable plate (3), and the first bolts (21) penetrate the movable plate (3) and are threadedly connected to the bottom plate (4).

4. A photovoltaic inverter cover thread riveting tool according to claim 1, characterized in that: The four sides of the positioning plate (8) are respectively provided with connecting grooves (16), the interior of the connecting groove (16) is detachably fixed with a connecting plate (10), and the positioning blocks (9) are symmetrically fixed at both ends of the connecting plate (10).

5. A photovoltaic inverter cover thread riveting tool according to claim 4, characterized in that: The connection groove (16) is symmetrically provided with positioning grooves (23), and the connection plate (10) is symmetrically fixed with positioning seats (24) at positions corresponding to the positioning grooves (23). The positioning seats (24) are inserted into the positioning grooves (23), and the positioning seats (24) and the positioning grooves (23) are fixed by second bolts (25).

6. The photovoltaic inverter cover thread riveting tool according to claim 1, characterized in that: A mounting groove (19) is fixed on the top of the push rod (7), a connecting seat (20) is fixed on the bottom of the plug-in column (14), the connecting seat (20) is slidably connected to the bottom of the inner wall of the mounting groove (19), a rubber ring (18) is fixed on the outer wall of the plug-in column (14) and located on the inner side of the mounting groove (19), the outer side of the mounting groove (19) is threadedly connected to a top cover (17), and one end of the plug-in column (14) away from the connecting seat (20) passes through the top cover (17).

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