Plate polishing device

Abstract

The invention relates to a plate grinding device, and relates to the technical field of plate machining, the plate grinding device comprises a bottom plate, a first grinding assembly arranged on the bottom plate and a second grinding assembly arranged on one side of the first grinding assembly, the first grinding assembly is used for grinding the surface of a plate, and the second grinding assembly is used for grinding the peripheral side of the plate. The second grinding assembly comprises a second lifting part and a plurality of pushing drives, the pushing drives are arranged at intervals in the lifting direction of the second lifting part, included angles are formed between the pushing directions of the pushing drives and the lifting direction of the second lifting part and are larger than 60 degrees, grinding parts are hinged to the output ends of the pushing drives, and the grinding parts face the first grinding assembly; every two adjacent grinding pieces are hinged to each other, the hinge axis of each grinding piece is parallel to the hinge axis of the pushing drive, and an image sensing piece is arranged on one side of the second grinding assembly and used for feeding back the grinding angle of the second grinding assembly to the pushing drive. The device has the effect of improving the plate side edge grinding efficiency and quality.

Description

Technical Field

[0001] This application relates to the field of sheet metal processing technology, and in particular to a sheet metal grinding device. Background Technology

[0002] As a commonly used raw material in home furnishings, boards are produced in many different shapes. All boards of different shapes need to be sanded and processed. After the surface of some boards is sanded, the edges of the boards are also sanded and processed.

[0003] In related technologies, grinding wheels and polishing machines are generally used on the surface of the board, but the sides still need to be sanded manually by operators using sandpaper. Some boards are large in size and span, making them inconvenient to move and change direction, which increases the labor intensity of the workers. At the same time, the processing and sanding of the boards becomes more difficult, which may affect the sanding quality of the sides of the boards. Summary of the Invention

[0004] In order to improve the efficiency and quality of grinding the sides of the board, this application provides a board grinding device.

[0005] The plate grinding device provided in this application adopts the following technical solution: A sheet metal grinding device includes a base plate, a first grinding component disposed on the base plate, and a second grinding component disposed on one side of the first grinding component. The first grinding component is used to grind the surface of the sheet metal, and the second grinding component is used to grind the periphery of the sheet metal. The second grinding component includes a second lifting member and multiple push drives. The multiple push drives are spaced apart along the lifting direction of the second lifting member. The pushing direction of the multiple push drives forms an angle greater than 60 degrees with the lifting direction of the second lifting member. The output end of each push drive is hinged to a grinding component, which faces the first grinding component. Adjacent grinding components are hinged to each other, and the hinge axis of the grinding component is parallel to the hinge axis of the push drive. An image sensor is provided on one side of the second grinding component. The image sensor is used to feed back the grinding angle of the second grinding component to the push drive, so that the push drive adjusts the rotation angle of the grinding component according to the image.

[0006] By adopting the above technical solution, the surface of the board is polished by the first polishing component. Then, the second lifting component is activated to drive the push drive to keep it horizontal with the board. The push drive is then activated again to move the polishing component close to the side wall of the board. The first polishing component drives the fixed board to rotate, and the polishing component polishes the periphery of the board. The image sensor can adjust the polishing component according to the shape of the board and the fit between the board side wall and the polishing component, so that the polishing component keeps in contact with the side wall of the board during polishing, thereby improving the polishing efficiency and quality of the board side.

[0007] Optionally, the first grinding assembly includes a first lifting member, a first driving member, and a first grinding disc. The first lifting member is disposed on the base plate, the first driving member is disposed on the first lifting member, and the first grinding disc is connected to the output end of the first driving member. The first lifting member is used to drive the first driving member to lift and lower, and the first driving member is used to drive the first grinding disc to rotate.

[0008] By adopting the above technical solution, the first lifting component drives the first driving component and the first grinding disc to lift and lower, adjusting the height of the first driving component and the first grinding disc to a height suitable for the operator to grind the surface of the board. After the adjustment is completed, the first driving component is started, the operator moves the board, and the first grinding disc grinds the surface of the board.

[0009] Optionally, the first lifting component includes a guide rod, a screw, a first lifting drive, and a lifting plate. The guide rod and the screw are both arranged vertically and symmetrically. The first lifting drive is connected to the screw and is used to drive the screw to rotate. One end of the lifting plate is slidably connected to the guide rod, and the other end is threadedly connected to the screw. The first drive component is located at the end of the lifting plate near the first grinding disc.

[0010] By adopting the above technical solution, the first lifting drive is activated, which drives the screw to rotate. The screw drives the lifting plate to rise or fall, thereby driving the first driving component on the lifting plate to rise or fall, thus completing the lifting of the first grinding disc.

[0011] Optionally, a third grinding component is provided above the first grinding component. The third grinding component includes a bracket, a second lifting drive, a moving part, and a second grinding disc. The bracket is located above the first grinding component. The second lifting drive is connected to the bracket and is located between the bracket and the first grinding component. The moving part is connected to the end of the second lifting drive away from the bracket. The second grinding disc is connected to the end of the moving part away from the second lifting drive. The moving part is used to drive the second grinding disc to grind along the surface of the board.

[0012] By adopting the above technical solution, in order to facilitate the grinding of the board surface, the second lifting drive moves the moving part closer to the first grinding component, places the board to be ground on the first grinding disc, and after the board is fixed, the moving part drives the second grinding disc to grind the board surface.

[0013] Optionally, the first grinding assembly is provided with a first protective assembly, which includes a first mounting frame, a first protective plate, and a first sealing frame. The first mounting frame covers the periphery of the first lifting member, the first protective plate is located on the top of the first mounting frame, the output end of the first driving member passes through the first protective plate and connects to the first grinding disc, the first sealing frame is located between the first mounting frame and the first protective plate, and the first protective plate is connected to the first sealing frame. The first sealing frame is a telescopic frame, and the telescopic direction of the first sealing frame is the same as the lifting direction of the first lifting member.

[0014] By adopting the above technical solution, the first mounting frame, the first sealing frame, and the first protective plate block the powder from the grinding of the plate, thereby protecting the first driving component and the first lifting component and reducing the impact of dust on the first driving component and the first lifting component.

[0015] Optionally, a first abutment is detachably connected to the first protective plate. The top of the first abutment protrudes from the upper surface of the first grinding disc. A second abutment is provided on the bracket. A pressing drive is provided at the end of the second abutment away from the first abutment. The pressing drive is used to drive the second abutment to approach the first abutment. The first protective plate is slidably connected to the first sealing frame. The sliding direction of the first protective plate is circumferential sliding.

[0016] By adopting the above technical solution, the first and second clamping members can fix the plate after the surface has been polished. After fixing, the first driving member is activated, which can drive the first protective plate to rotate along the rotation axis of the first driving member. In other words, the second polishing component is activated, which drives the first driving member to rotate the first protective plate. The second polishing component polishes the side wall of the plate.

[0017] Optionally, the second grinding assembly is provided with a second protective assembly, which includes a protective box and a second sealing frame. A mounting plate is provided between the second lifting member and the push drive. The protective box is located on the mounting plate near the push drive. An installation port is opened at the end of the protective box near the third grinding assembly. A flexible protective plate is provided at the installation port. The second sealing frame is located around the second lifting member. One end of the second sealing frame is connected to the bottom of the mounting plate, and the other end is connected to the top of the base plate. The second sealing frame is a telescopic frame, and the telescopic direction of the second sealing frame is the same as the lifting direction of the second lifting member.

[0018] By adopting the above technical solution, the protective box, the second sealing frame, and the flexible protective plate protect the second lifting component and the push drive, reducing the impact of dust on the second lifting component and the push drive. The mounting plate is used to install the push drive, and the second sealing frame can extend and retract, so that the second lifting component can still be protected even when it is lifting.

[0019] Optionally, the second polishing component is provided with a displacement drive, which drives the second polishing component to move closer to or further away from the first polishing component.

[0020] By adopting the above technical solution, the displacement drive allows the second grinding component to move closer to or further away from the first grinding component, enabling it to move for plates of different widths or specifications, thereby improving the applicability of the grinding device.

[0021] Optionally, the second polishing component is provided with at least two, and the at least two polishing components are evenly distributed around the first polishing component.

[0022] By adopting the above technical solution, the two grinding devices can grind the periphery of the board at the same time, thereby improving the efficiency of grinding the board.

[0023] Optionally, the grinding component includes a mounting platform, a sliding block, and a grinding strip. The mounting platform is hinged to the push drive. A sliding groove is provided at the end of the mounting platform away from the push drive. The sliding block is located in the sliding groove. The grinding strip is connected to the end of the sliding block away from the push drive. The surface of the grinding strip protrudes from the surface of the mounting platform. Limiting plates are provided on both sides of the sliding block. The limiting plates are detachably connected to the mounting platform.

[0024] By adopting the above technical solution, the connection between the sliding block and the mounting table is disconnected, the grinding strip is replaced, and after replacement, the sliding block is fixed to the mounting table again, which facilitates the disassembly and assembly of the grinding strip.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a first grinding component, a second grinding component, and a third grinding component, the first grinding component and the third grinding component grind the surface of the board, and the second grinding component grinds the side wall of the board. During grinding, multiple pushing drives can make multiple grinding parts fit against the side wall of the board. Even for side walls with different curvatures, multiple grinding parts can maintain a fit against the side wall of the board under the hinge action, thereby grinding the side of the board and improving the grinding efficiency and quality of the side of the board. 2. By setting a first clamping member and a second clamping member on the first grinding assembly and the second grinding assembly, the first clamping member and the second clamping member clamp and fix the plate, thereby improving the stability of the side wall of the plate during grinding and reducing the labor intensity of the operator. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the first and second polishing components according to an embodiment of this application; Figure 3 yes Figure 6 An enlarged schematic diagram of part A in the middle; Figure 4 yes Figure 7 Enlarged schematic diagram of part B in the middle; Figure 5 This is a front view of the first and second polishing components according to an embodiment of this application; Figure 6 This is a partial perspective sectional view of an embodiment of this application; Figure 7 This is a partial perspective cross-sectional view from another perspective of an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. First grinding assembly; 21. First lifting component; 211. Guide rod; 212. Screw; 213. First lifting drive; 214. Lifting plate; 22. First driving component; 23. First grinding disc; 3. Second grinding assembly; 31. Second lifting component; 32. Push drive; 4. Grinding component; 41. Mounting platform; 42. Sliding block; 43. Grinding strip; 44. Limiting plate; 5. Image sensor; 6. Displacement drive; 7. Third grinding assembly; 71, bracket; 72, second lifting drive; 73, moving part; 74, second grinding disc; 75, second clamping part; 76, clamping drive; 8, first protective assembly; 81, first mounting frame; 82, first protective plate; 83, first sealing frame; 84, first clamping part; 841, mounting column; 842, first clamping platform; 9, second protective assembly; 91, protective box; 92, second sealing frame; 93, mounting port; 94, flexible protective plate. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0030] This application discloses a plate grinding device, referring to... Figure 1 A plate grinding device includes a base plate 1, a first grinding component 2 disposed on the base plate 1, and a second grinding component 3 disposed on one side of the first grinding component 2.

[0031] Reference Figure 2 The first grinding component 2 is used to grind the surface of the plate, and the second grinding component 3 is used to grind the periphery of the plate. The second grinding component 3 includes a second lifting component 31 and a plurality of pushing drives 32. The plurality of pushing drives 32 are arranged at intervals along the lifting direction of the second lifting component 31. The pushing direction of the plurality of pushing drives 32 has an angle greater than 60 degrees with the lifting direction of the second lifting component 31. In this embodiment, four pushing drives 32 are provided, and the four pushing drives 32 are arranged vertically and equally spaced. The angle between the pushing drives 32 and the lifting direction of the second lifting component 31 is 90 degrees.

[0032] Reference Figure 2 , Figure 3 and Figure 4Each output end of the drive 32 is hinged with a grinding component 4, which faces the first grinding assembly 2. Adjacent grinding components 4 are hinged to each other, with the hinge axis of the grinding component 4 parallel to the hinge axis of the drive 32. The hinge method between the grinding components 4 is the same as the hinge method between the grinding component 4 and the drive 32, both connected by a fixed base. The fixed base includes two connecting plates and a rotating shaft. One end of the connecting plate is welded to the grinding component 4, and the other end is rotatably connected to another adjacent connecting plate via the rotating shaft. Both ends of the connecting plates that are close to each other have rounded corners. In this embodiment, the hinge axis of the grinding component 4 and the hinge axis of the drive 32 are both horizontally positioned, and each rotating shaft is covered with a damping ring, which keeps the grinding component 4 in contact with the sidewall of the material. An image sensor 5 is provided on one side of the second grinding assembly 3. The image sensor 5 is used to feed back the grinding angle of the second grinding assembly 3 to the drive 32, allowing the drive 32 to adjust the rotation angle of the grinding component 4 according to the image.

[0033] The grinding component 4 grinds the side of the board. The push drive 32 is activated, which moves the grinding component 4 closer to the side of the board until the side of the board and the grinding component 4 are in contact. Since the grinding component 4 and the output end of the push drive 32 are hinged, and the four grinding components 4 are also hinged to each other, the image sensor monitors the contact state between the board and the grinding component 4 at any time and transmits it to the push drive 32. The push drive 32 adjusts the contact state between the grinding component 4 and the board in real time, so that the grinding component 4 keeps in contact with the side wall of the board when grinding, thereby improving the grinding efficiency and quality of the side of the board.

[0034] Reference Figure 3 and Figure 4 The grinding component 4 includes a mounting platform 41, a sliding block 42, and a grinding strip 43. The mounting platform 41 is hinged to the push drive 32 via a fixed seat. A sliding groove is provided at the end of the mounting platform 41 away from the push drive 32. The sliding groove is a dovetail groove. The sliding block 42 is located in the sliding groove and is a dovetail block. The grinding strip 43 is connected to the end of the sliding block 42 away from the push drive 32. The surface of the grinding strip 43 protrudes from the surface of the mounting platform 41. Limiting plates 44 are fixedly connected to both sides of the sliding block 42 by bolts. The limiting plates 44 limit the two sides of the grinding strip 43. One end of the limiting plate 44 is located on one side of the sliding block 42 to restrict the movement of the sliding block 42. The other side is fixedly connected to the mounting platform 41 by bolts, which facilitates the disassembly and assembly of the grinding strip 43 and facilitates the replacement of the grinding strip 43.

[0035] Reference Figure 5 , Figure 6The first grinding assembly 2 includes a first lifting member 21, a first driving member 22, and a first grinding disc 23. The first lifting member 21 is fixedly connected to the base plate 1 by bolts. The first driving member 22 is located above the first lifting member 21. The first grinding disc 23 is keyed to the output end of the first driving member 22. The first lifting member 21 is used to drive the first driving member 22 to rise and fall, and the first driving member 22 is used to drive the first grinding disc 23 to rotate. The first driving member 22 is a servo motor.

[0036] Furthermore, referring to Figure 6 , Figure 7 The first lifting component 21 includes a guide rod 211, a screw 212, a first lifting drive 213, and a lifting plate 214. The guide rod 211 and screw 212 are vertically symmetrically arranged. The guide rod 211 is welded to the base plate 1. The screw 212 is rotatably connected to the base plate 1 via a bearing. The first lifting drive 213 is connected to the screw 212 and is used to drive the screw 212 to rotate. One end of the lifting plate 214 is slidably connected to the guide rod 211, and the other end is threadedly connected to the screw 212. The first drive component 22 is located at the end of the lifting plate 214 near the first grinding disc 23. In this embodiment, the first lifting drive 213 includes a servo motor, a first gear, and a second gear. The first gear is keyed to the screw 212, and the second gear is rotatably connected to the base plate 1 via a rotating shaft and meshes with the first gear. The servo motor is keyed to the second gear.

[0037] Reference Figure 5 At least two second polishing components 3 are provided, and the at least two polishing components are evenly distributed around the first polishing component 2. In this embodiment, there are two second polishing components 3, which are symmetrically arranged on the left and right sides of the first polishing component 2. A displacement drive 6 is provided at the bottom of the second polishing component 3. The displacement drive 6 drives the second polishing component 3 to move closer to or away from the first polishing component 2. The displacement drive 6 is a linear screw 212 transmission structure.

[0038] Specifically, refer to Figure 6 , Figure 7 A third grinding component 7 is provided above the first grinding component 2. The third grinding component 7 includes a bracket 71, a second lifting drive 72, a moving part 73, and a second grinding disc 74. The bracket 71 is located above the first grinding component 2. The second lifting drive 72 is connected to the bracket 71 and is a cylinder. The second lifting drive 72 is located between the bracket 71 and the first grinding component 2. The moving part 73 is connected to the end of the second lifting drive 72 away from the bracket 71. The second grinding disc 74 is connected to the end of the moving part 73 away from the second lifting drive 72. The moving part 73 is used to drive the second grinding disc 74 to grind along the surface of the board. The moving part 73 is a robotic arm. The second grinding disc 74 and the robotic arm are fixedly connected by bolts.

[0039] Reference Figure 5 , Figure 6 and Figure 7 The first grinding component 2 is provided with a first protective component 8, which includes a first mounting frame 81, a first protective plate 82, and a first sealing frame 83. The first mounting frame 81 covers the periphery of the first lifting component 21, and the first protective plate 82 is located on the top of the first mounting frame 81. The output end of the first driving component 22 passes through the first protective plate 82 and is connected to the first grinding disc 23. The end of the first sealing frame 83 away from the first protective plate 82 is bonded to the first mounting frame 81. A guide post is protruding and bonded to the end of the first sealing frame 83 near the first protective plate 82. A limit block is integrally formed on the top of the guide post. An annular groove is provided at the end of the first protective plate 82 near the limit block. The central axis of the annular groove is coaxial with the rotation axis of the first driving component 22. The cross-section of the annular groove is "T" shaped. The first sealing frame 83 is a telescopic frame, or it can be a bellows cover. In this embodiment, it is a rubber telescopic frame. The telescopic direction of the first sealing frame 83 is the same as the lifting direction of the first lifting component 21.

[0040] Reference Figure 5 A first abutment 84 is detachably connected to the first protective plate 82. The top of the first abutment 84 protrudes from the upper surface of the first grinding disc 23. A second abutment 75 is provided on the bracket 71. A clamping drive 76 is provided at the end of the second abutment 75 away from the first abutment 84. The clamping drive 76 is used to drive the second abutment 75 closer to the first abutment 84. The first abutment 84 includes a mounting post 841 and a first clamping platform 842. The mounting post 841 is detachably connected to the first protective plate 82 by bolts. The first clamping platform 842 is detachably connected to the end of the mounting post 841 away from the first protective plate 82 by studs. The first clamping platform 842 is a rubber platform. The second abutment 75 is also a rubber platform. The second abutment 75 is fixedly connected to the clamping drive 76 by bolts. Thus, once the first clamping member 84 and the second clamping member 75 have fixed the plate, the first driving member 22 can drive the first protective plate 82 to rotate, thereby rotating the plate and facilitating the grinding of the plate's periphery.

[0041] Reference Figure 5 , Figure 6 and Figure 7The second grinding component 3 is provided with a second protective component 9, which includes a protective box 91 and a second sealing frame 92. A mounting plate is provided between the second lifting component 31 and the push drive 32. The protective box 91 is welded to the mounting plate near the push drive 32. The protective box 91 has an installation port 93 at the end near the third grinding component 7. A flexible protective plate 94 is bonded to the installation port 93. The flexible protective plate 94 is a rubber plate. The second sealing frame 92 is provided around the second lifting component 31. One end of the second sealing frame 92 is bonded to the bottom of the mounting plate, and the other end is bonded to the top of the base plate 1. The second sealing frame 92 is a telescopic frame. In this embodiment, it is a rubber telescopic frame. The telescopic direction of the second sealing frame 92 is the same as the lifting direction of the second lifting component 31.

[0042] The implementation principle of the plate grinding device in this application embodiment is as follows: When grinding the plate, the plate is first pressed together using the first clamping member 84 and the second clamping member 75. Then, the first grinding disc 23 and the second grinding disc 74 grind the surface of the plate. After grinding is completed, the displacement drive 6 is activated. The displacement drive 6 drives the second grinding component 3 to approach the side of the plate. The drive 32 pushes the grinding strip 43 to fit against the side of the plate. The first drive member 22 is activated. The first drive member 22 drives the first protective plate 82 to rotate, thereby driving the plate to rotate and grinding the side wall of the plate, improving the grinding efficiency and quality of the side of the plate.

[0043] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A plate grinding device, characterized in that: The assembly includes a base plate (1), a first grinding component (2) mounted on the base plate (1), and a second grinding component (3) mounted on one side of the first grinding component (2). The first grinding component (2) is used to grind the surface of the plate and can fix the plate and drive it to rotate. The second grinding component (3) is used to grind the periphery of the plate. The second grinding component (3) includes a second lifting member (31) and multiple push drives (32). The multiple push drives (32) are spaced apart along the lifting direction of the second lifting member (31), and the pushing direction of the multiple push drives (32) is the same as that of the second lifting member (31). The lifting direction of component (31) has an angle greater than 60 degrees. The output end of the push drive (32) is hinged with a grinding component (4). The grinding component (4) faces the first grinding component (2). Two adjacent grinding components (4) are hinged to each other. The hinge axis of the grinding component (4) is parallel to the hinge axis of the push drive (32). An image sensor (5) is provided on one side of the second grinding component (3). The image sensor (5) is used to feed back the grinding angle of the second grinding component (3) to the push drive (32), so that the push drive (32) adjusts the rotation angle of the grinding component (4) according to the image.

2. The plate grinding device according to claim 1, characterized in that: The first polishing assembly (2) includes a first lifting member (21), a first driving member (22) and a first polishing disc (23). The first lifting member (21) is mounted on the base plate (1), and the first driving member (22) is mounted on the first lifting member (21). The first polishing disc (23) is connected to the output end of the first driving member (22). The first lifting member (21) is used to drive the first driving member (22) to lift and lower, and the first driving member (22) is used to drive the first polishing disc (23) to rotate.

3. The plate grinding device according to claim 2, characterized in that: The first lifting component (21) includes a guide rod (211), a screw (212), a first lifting drive (213), and a lifting plate (214). The guide rod (211) and the screw (212) are both arranged vertically symmetrically. The first lifting drive (213) is connected to the screw (212) and is used to drive the screw (212) to rotate. One end of the lifting plate (214) is slidably connected to the guide rod (211), and the other end is threadedly connected to the screw (212). The first drive component (22) is located at one end of the lifting plate (214) near the first grinding disc (23).

4. The plate grinding device according to claim 1, characterized in that: A third grinding component (7) is provided above the first grinding component (2). The third grinding component (7) includes a bracket (71), a second lifting drive (72), a moving part (73), and a second grinding disc (74). The bracket (71) is located above the first grinding component (2). The second lifting drive (72) is connected to the bracket (71) and is located between the bracket (71) and the first grinding component (2). The moving part (73) is connected to the end of the second lifting drive (72) away from the bracket (71). The second grinding disc (74) is connected to the end of the moving part (73) away from the second lifting drive (72). The moving part (73) is used to drive the second grinding disc (74) to grind along the surface of the board.

5. The plate grinding device according to claim 2, characterized in that: The first grinding component (2) is provided with a first protective component (8). The first protective component (8) includes a first mounting frame (81), a first protective plate (82) and a first sealing frame (83). The first mounting frame (81) covers the periphery of the first lifting component (21). The first protective plate (82) is located on the top of the first mounting frame (81). The output end of the first driving component (22) passes through the first protective plate (82) and is connected to the first grinding disc (23). The first sealing frame (83) is located between the first mounting frame (81) and the first protective plate (82). The first protective plate (82) is connected to the first sealing frame (83). The first sealing frame (83) is a telescopic frame. The telescopic direction of the first sealing frame (83) is the same as the lifting direction of the first lifting component (21).

6. The plate grinding device according to claim 5, characterized in that: The first protective plate (82) is detachably connected to a first abutment (84). The top of the first abutment (84) protrudes from the upper surface of the first grinding disc (23). The bracket (71) is provided with a second abutment (75). The end of the second abutment (75) away from the first abutment (84) is provided with an abutment drive (76). The abutment drive (76) is used to drive the second abutment (75) to approach the first abutment (84). The first protective plate (82) is slidably connected to the first sealing frame (83). The sliding direction of the first protective plate (82) is circumferential sliding.

7. The plate grinding device according to claim 1, characterized in that: The second grinding component (3) is provided with a second protective component (9). The second protective component (9) includes a protective box (91) and a second sealing frame (92). An installation plate is provided between the second lifting component (31) and the push drive (32). The protective box (91) is located on the installation plate near the push drive (32). An installation port (93) is opened on the end of the protective box (91) near the third grinding component (7). A flexible protective plate (94) is provided at the installation port (93). The second sealing frame (92) is located on the periphery of the second lifting component (31). One end of the second sealing frame (92) is connected to the bottom of the installation plate, and the other end is connected to the top of the base plate (1). The second sealing frame (92) is a telescopic frame. The telescopic direction of the second sealing frame (92) is the same as the lifting direction of the second lifting component (31).

8. The plate grinding device according to claim 1, characterized in that: The second polishing component (3) is provided with a displacement drive (6), which drives the second polishing component (3) to move closer to or further away from the first polishing component (2).

9. The plate grinding device according to claim 1, characterized in that: The second polishing component (3) is provided with at least two, and the at least two polishing components are evenly distributed around the first polishing component (2).

10. A plate grinding device according to claim 1, characterized in that: The grinding component (4) includes a mounting platform (41), a sliding block (42), and a grinding strip (43). The mounting platform (41) is hinged to the push drive (32). A sliding groove is provided at the end of the mounting platform (41) away from the push drive (32). The sliding block (42) is located in the sliding groove. The grinding strip (43) is connected to the end of the sliding block (42) away from the push drive (32). The surface of the grinding strip (43) protrudes from the surface of the mounting platform (41). Limiting plates (44) are provided on both sides of the sliding block (42). The limiting plates (44) are detachably connected to the mounting platform (41).

Images