Polishing device for building materials

Abstract

The invention discloses a grinding device for building materials, and relates to the technical field of grinding. The device comprises a base, a controller is arranged on the side face of the base, two corresponding sliding grooves are formed in the top of the base, T-shaped clamping plates are slidably connected to the inner walls of the two sliding grooves, springs are arranged between the T-shaped clamping plates and the base, and a plurality of supporting rods are fixedly connected to the top of the base. The tops of the multiple supporting rods are fixedly connected with the same protection plate, and the two sides of the protection plate are fixedly connected with fixing blocks. Through cooperation of a threaded rod, a threaded sleeve, an electric push rod, a grinding wheel and other assemblies, an adjusting wheel drives a rotating column to rotate, rotation of the rotating column drives angle adjustment of a connecting block, a driver and the grinding wheel, and therefore the grinding wheel is adjusted to the angle making contact with the arc face of the aluminum alloy waved plate; and therefore, the effect that the polishing wheel polishes the cambered surface of the aluminum alloy waved plate is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, in particular to a grinding device for building materials. Background Art

[0002] A grinding device for building materials is usually used to finely process the surface of a building to improve its smoothness and flatness. The device includes a motor, a sanding disc and an adjustment device. The motor drives the sanding disc to rotate, and by adjusting the speed and pressure of the sanding disc, it can evenly remove the uneven parts of the material surface.

[0003] A Chinese patent with patent announcement number CN107297654A discloses a grinding device for building materials, including a base, a grinding device body is fixedly connected to the rear side of the top of the base, a workbench is arranged on the top of the base, and the workbench is located on the front side of the grinding device body, and a connecting column is fixedly connected to the bottom of the workbench. The rotating wheel solves the problem that the existing grinding device for building materials can only grind the plane of the building materials but cannot grind the edges and corners of the building materials by setting a connecting column, a movable plate, a first support rod, a second support rod, a first slider, a first slide groove, a positive threaded rod, a reverse threaded rod, an electric telescopic rod, a screw sleeve, a gear and a toothed plate. The grinding device for building materials has the advantage of being able to grind edges and corners, is convenient for users to use, improves the work efficiency of users, and improves the practical value of the existing grinding device for building materials.

[0004] However, the current grinding device has the following problems: the existing grinding device for building materials can only grind the flat surface of the building materials, and the curved surface of the aluminum alloy corrugated plate is difficult to grind due to its curved shape. Therefore, we propose a grinding device for building materials. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a grinding device for building materials, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a grinding device for building materials, including a base, a controller is arranged on the side of the base, two corresponding slide grooves are arranged on the top of the base, the inner walls of the two slide grooves are slidably connected with T-shaped clamping plates, a spring is arranged between the T-shaped clamping plate and the base, a plurality of support rods are fixedly connected to the top of the base, the tops of the plurality of support rods are fixedly connected to the same protective plate, both sides of the protective plate are fixedly connected to fixed blocks, a threaded rod is rotatably connected between the two fixed blocks, and the threaded rod passes through The motor is driven by a motor, and the motor is fixedly connected to the side surface of one of the fixed blocks, the circumferential surface of the threaded rod is threadedly connected with a threaded sleeve, the bottom of the threaded sleeve is fixedly connected with an electric push rod, the telescopic end of the electric push rod is fixedly connected with a placement plate, the bottom of the placement plate is fixedly connected with two fixed arc plates, the arc surfaces of the two fixed arc plates penetrate and rotate with the same rotating column, both ends of the rotating column are fixedly connected with adjusting wheels, the middle part of the outer wall of the rotating column is fixedly connected with a connecting block, the bottom of the connecting block is fixedly connected with a driver, and the output end of the driver is fixedly connected with a Grinding wheel, when placing the aluminum alloy corrugated plate on the base, the corrugated sides of the aluminum alloy corrugated plate will push the two T-shaped clamping plates to compress their respective springs. After the aluminum alloy corrugated plate is placed, the two springs will drive their respective T-shaped clamping plates to clamp and fix the aluminum alloy corrugated plate through their own elastic force. The electric push rod is driven by the controller, and the telescopic end of the electric push rod will push the placement plate to move downward. The downward movement of the placement plate will drive the fixed arc plate, rotating column, adjusting wheel, connecting block, driver, and grinding wheel to move downward, and then the adjusting wheel is driven by the controller to drive the adjusting wheel to drive The rotating column rotates, and the rotation of the rotating column will drive the connecting block, the driver, and the grinding wheel angle adjustment, so as to adjust the grinding wheel to the angle in contact with the arc surface of the aluminum alloy corrugated plate, and then drive the motor through the controller, and the output shaft of the motor causes the threaded rod to rotate, and the rotation of the threaded rod causes the threaded sleeve to reciprocate, and the reciprocating motion of the threaded sleeve drives the electric push rod, the placement plate, the fixed arc plate, the rotating column, the adjusting wheel, the connecting block, the driver, and the grinding wheel to reciprocate. While the grinding wheel reciprocates, the driver is started through the controller, and the output shaft of the driver causes the grinding wheel to rotate and grind.

[0007] According to the above technical solution, connecting rods are fixedly connected to both sides of the connecting block, and the ends of the two connecting rods away from the connecting block are fixedly connected to interference semi-circular balls, the angle between the connecting rod and the grinding wheel is set to ninety-five degrees, and a groove for moving the connecting rod is opened at the bottom of the placement plate. When the angle of the connecting block is adjusted, the connecting block will drive the connecting rod to move in an arc, and the arc movement of the connecting rod will drive the interference semi-circular balls to move in an arc, and when the grinding wheel contacts the arc surface of the aluminum alloy corrugated plate at an angle, the interference semi-circular balls will contact the arc surface on the other side of the same concave surface of the aluminum alloy corrugated plate that contacts the grinding wheel.

[0008] According to the above technical scheme, the outer wall of the connecting rod is provided with an anti-scratch device, and the anti-scratch device includes a swivel, the inner wall of the swivel is rotatably connected to the outer wall of the connecting rod, the side of the swivel is fixedly connected with a cleaning brush ring, the side of the placing plate is fixedly connected with a connecting plate, the side of the connecting plate is fixedly connected with an arc block, the side of the arc block is in contact with the outer wall of the swivel, and the cleaning brush ring is located outside the resisting semicircular ball. When the connecting rod moves in an arc shape, the connecting rod will drive the swivel to move, and the swivel will move along the surface of the arc block. Under the friction force between the swivel and the arc block, the swivel will rotate while moving, and the rotation of the swivel will drive the cleaning brush ring to rotate. At the same time, when the connecting block reciprocates, it will drive the connecting rod and the resisting semicircular ball to reciprocate along the arc surface on the other side of the same concave surface of the aluminum alloy corrugated plate in contact with the grinding wheel, and the movement of the connecting rod will drive the swivel and the cleaning brush ring to reciprocate.

[0009] According to the above technical solution, a pressing device is provided on the outer wall of the telescopic end of the electric push rod, and the pressing device includes two long plates, the side surfaces of the two long plates are fixedly connected to the outer wall of the telescopic end of the electric push rod, the side surfaces of the two long plates are fixedly connected to two limit blocks, a rotating rod is rotatably connected between the two limit blocks, a long block is fixedly connected to the outer wall of the rotating rod, a torsion spring is provided between the long block and the two limit blocks, a long rod is fixedly passed through the lower side surface of the long block, both ends of the long rod are fixedly connected to limit blocks, a pressure roller is rotatably connected between the two limit blocks, a support block is fixedly connected to the bottom of the long plate close to the long block, a resistance block is fixedly connected to the side of the long plate close to the long block, the support block is in contact with the long block, and the resistance block is located on the displacement track of the long block. Some aluminum alloys The material of the corrugated plate is relatively thin, so when the T-shaped clamping plate clamps and fixes the aluminum alloy corrugated plate, it will cause the aluminum alloy corrugated plate to bend. Therefore, the telescopic end of the electric push rod will drive the two long plates to move downward, and the downward movement of the two long plates will drive the limit block to move downward. The downward movement of the limit block will drive the rotating rod to move downward. The downward movement of the rotating rod will drive the long block to move downward. The downward movement of the long block will drive the long rod, the limit block, and the pressure roller to move downward, so that the pressure roller contacts the convex part of the aluminum alloy corrugated plate, and then the reaction force of the aluminum alloy corrugated plate will cause the pressure roller to rotate through the long rod, the limit block, and the long block, and the torsion spring will be deformed. The long block will be subjected to the resistance of the resistance block during the rotation process. Therefore, the resistance block will press the aluminum alloy corrugated plate flat through the pressure roller, the long rod, the limit block, and the long block.

[0010] According to the above technical solution, the pressing device also includes a sponge roller, the inner wall of the sponge roller is fixedly connected to the outer wall of the pressing roller, and the pressing roller will reciprocate following the electric push rod.

[0011] The present invention provides a grinding device for building materials, which has the following beneficial effects: (1) The present invention arranges a threaded rod, a threaded sleeve, an electric push rod, a placement plate, a fixed arc plate, a rotating column, an adjusting wheel, a connecting block, a driver, and a grinding wheel, so that the adjusting wheel drives the rotating column to rotate. The rotation of the rotating column drives the connecting block, the driver, and the grinding wheel to adjust the angle, so that the grinding wheel is adjusted to an angle in contact with the arc surface of the aluminum alloy corrugated plate, thereby achieving the effect of the grinding wheel grinding the arc surface of the aluminum alloy corrugated plate; at the same time, through the arrangement of the connecting block, the connecting rod, and the resisting semi-circular ball, the grinding wheel needs to be in close contact with the arc surface of the aluminum alloy corrugated plate, resulting in the grinding wheel pushing the aluminum alloy corrugated plate to move along the surface of the T-shaped clamping plate, thereby causing the grinding wheel to be difficult to stably grind the arc surface of the aluminum alloy corrugated plate.

[0012] (2) The present invention arranges the anti-scratch device so that the rotating ring, the cleaning brush ring, the connecting plate and the arc block are matched with each other, so that the rotation of the rotating ring will drive the cleaning brush ring to rotate, and the rotation of the cleaning brush ring will clean up the debris on the arc surface of the aluminum alloy corrugated plate by the resisting semi-circular ball, so as to avoid the resisting semi-circular ball squeezing the debris onto the arc surface of the aluminum alloy corrugated plate when it resists the arc surface of the aluminum alloy corrugated plate, thereby causing the arc surface of the aluminum alloy corrugated plate to be pressed with small holes by the debris. The reciprocating motion of the cleaning brush ring will clean up the debris on the arc surface of the aluminum alloy corrugated plate, thereby avoiding the problem of the resisting semi-circular ball driving the debris to scratch the arc surface of the aluminum alloy corrugated plate.

[0013] (3) The present invention sets a pressing device so that the long plate, the limit block, the rotating rod, the long block, the torsion spring, the long rod, the limit block, the pressure roller, the support block and the resistance block cooperate with each other, so that the resistance block can press the aluminum alloy corrugated plate flat through the pressure roller through the long rod, the limit block and the long block, thereby avoiding the problem that the aluminum alloy corrugated plate is bent when being polished, resulting in the aluminum alloy corrugated plate being damaged by polishing; at the same time, through the cooperation of the sponge roller and the pressure roller, the sponge roller can protect the convex part of the aluminum alloy corrugated plate, thereby avoiding the problem that the pressure roller can scratch the convex part of the aluminum alloy corrugated plate when the pressure roller reciprocates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 This is a structural schematic diagram of the electric push rod of the present invention; Figure 3 It is a schematic diagram of the structure of the grinding wheel of the present invention; Figure 4 This is a schematic diagram of the structure of the adjusting wheel of the present invention; Figure 5 It is a structural schematic diagram of the anti-scratch device of the present invention; Figure 6 It is a structural schematic diagram of the pressing device of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A in the middle.

[0015] In the figure: 1. base; 2. controller; 3. T-shaped clamping plate; 4. spring; 5. support rod; 6. protective plate; 7. fixed block; 8. anti-scratch device; 81. swivel; 82. cleaning brush ring; 83. connecting plate; 84. arc block; 9. pressing device; 91. long plate; 92. limit block; 93. rotating rod; 94. long block; 95. torsion spring; 96. long rod; 97. limit block; 98. pressure roller; 99. support block; 910. resistance block; 911. sponge roller; 10. threaded rod; 1001. threaded sleeve; 11. electric push rod; 12. placement plate; 13. fixed arc plate; 14. rotating column; 15. adjusting wheel; 16. connecting block; 17. driver; 18. grinding wheel; 19. connecting rod; 20. resistance semicircular ball. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] See also Figure 1-Figure 7 , one embodiment of the present invention is: a grinding device for building materials, including a base 1, a controller 2 is arranged on the side of the base 1, two corresponding slide grooves are opened on the top of the base 1, the inner walls of the two slide grooves are slidably connected with T-shaped clamping plates 3, the height of the T-shaped clamping plates 3 is set not higher than the convex surface of the aluminum alloy corrugated plate, a spring 4 is arranged between the T-shaped clamping plates 3 and the base 1, a plurality of support rods 5 are fixedly connected to the top of the base 1, the tops of the plurality of support rods 5 are fixedly connected to the same protective plate 6, both sides of the protective plate 6 are fixedly connected with fixed blocks 7, a threaded rod 10 is rotatably connected between the two fixed blocks 7, the threaded rod 10 is driven by a motor, and the motor is fixedly connected to the side of one of the fixed blocks 7, the circumferential surface of the threaded rod 10 is threadedly connected with a threaded sleeve 1001, the thread An electric push rod 11 is fixedly connected to the bottom of the groove sleeve 1001, and a placement plate 12 is fixedly connected to the telescopic end of the electric push rod 11. Two fixed arc plates 13 are fixedly connected to the bottom of the placement plate 12. The arc surfaces of the two fixed arc plates 13 penetrate and rotate with the same rotating column 14. Adjustment wheels 15 are fixedly connected to both ends of the rotating column 14. A connecting block 16 is fixedly connected to the middle of the outer wall of the rotating column 14. A driver 17 is fixedly connected to the bottom of the connecting block 16. A grinding wheel 18 is fixedly connected to the output end of the driver 17. Through the arrangement of the above structure, the driver 17 is started through the controller 2 while the grinding wheel 18 moves back and forth, and the output shaft of the driver 17 causes the grinding wheel 18 to rotate and grind, thereby achieving the effect of the grinding wheel 18 grinding the arc surface of the aluminum alloy corrugated plate.

[0018] Both sides of the connecting block 16 are fixedly connected with connecting rods 19, and the ends of the two connecting rods 19 away from the connecting block 16 are fixedly connected with a resisting semicircular ball 20. The angle between the connecting rod 19 and the grinding wheel 18 is set to 95 degrees. The bottom of the placement plate 12 is provided with a notch for the movement of the connecting rod 19. Through the setting of the above structure, the grinding wheel 18 needs to be in close contact with the arc surface of the aluminum alloy corrugated plate, resulting in the grinding wheel 18 pushing the aluminum alloy corrugated plate to move along the surface of the T-shaped clamping plate 3, thereby causing the grinding wheel 18 to be difficult to stably grind the arc surface of the aluminum alloy corrugated plate. .

[0019] The outer wall of the connecting rod 19 is provided with an anti-scratch device 8, which includes a swivel 81, the inner wall of the swivel 81 is rotatably connected to the outer wall of the connecting rod 19, the side of the swivel 81 is fixedly connected with a cleaning brush ring 82, the side of the placement plate 12 is fixedly connected with a connecting plate 83, the side of the connecting plate 83 is fixedly connected with an arc block 84, the side of the arc block 84 is in contact with the outer wall of the swivel 81, and the cleaning brush ring 82 is located outside the hemispherical ball 20. Through the above-mentioned structure, the cleaning brush ring 82 can be easily removed. The rotation of the ring 82 will clean up the debris on the curved surface of the aluminum alloy corrugated plate that the conflicting semi-circular ball 20 conflicts with, thereby preventing the conflicting semi-circular ball 20 from squeezing the debris toward the curved surface of the aluminum alloy corrugated plate when it conflicts with the curved surface of the aluminum alloy corrugated plate, thereby causing the curved surface of the aluminum alloy corrugated plate to be pressed with small holes by the debris. The reciprocating motion of the cleaning brush ring 82 will clean up the debris on the curved surface of the aluminum alloy corrugated plate, thereby preventing the conflicting semi-circular ball 20 from causing the debris to scratch the curved surface of the aluminum alloy corrugated plate.

[0020] When in use, when the aluminum alloy corrugated plate is placed on the base 1, the corrugated sides of the aluminum alloy corrugated plate will push the two T-shaped clamping plates 3 to compress their respective springs 4. After the aluminum alloy corrugated plate is placed, the two springs 4 will drive their respective T-shaped clamping plates 3 to clamp and fix the aluminum alloy corrugated plate through their own elastic force. The electric push rod 11 is driven by the controller 2, and the telescopic end of the electric push rod 11 will push the placement plate 12 to move downward. The downward movement of the placement plate 12 will drive the fixed arc plate 13, the rotating column 14, the adjusting wheel 15, and the connecting block 1 6. The driver 17 and the grinding wheel 18 move downward, and then the controller 2 drives the adjusting wheel 15, so that the adjusting wheel 15 drives the rotating column 14 to rotate. The rotation of the rotating column 14 drives the connecting block 16, the driver 17, and the grinding wheel 18 to adjust the angle, so that the grinding wheel 18 is adjusted to the angle in contact with the arc surface of the aluminum alloy corrugated plate. Then, the controller 2 drives the motor, and the output shaft of the motor rotates the threaded rod 10. The rotation of the threaded rod 10 causes the threaded sleeve 1001 to reciprocate. The reciprocating motion of the threaded sleeve 1001 drives the motor The push rod 11, the placement plate 12, the fixed arc plate 13, the rotating column 14, the adjusting wheel 15, the connecting block 16, the driver 17, and the grinding wheel 18 move back and forth. When the grinding wheel 18 moves back and forth, the driver 17 is started by the controller 2, and the output shaft of the driver 17 causes the grinding wheel 18 to rotate and grind, thereby achieving the effect of the grinding wheel 18 grinding the arc surface of the aluminum alloy corrugated plate; when the connecting block 16 is adjusted in angle, the connecting block 16 will drive the connecting rod 19 to move in an arc shape, and the arc movement of the connecting rod 19 will drive the resistance The semi-circular sphere 20 moves in an arc shape. When the grinding wheel 18 contacts the arc surface of the aluminum alloy corrugated plate at an angle, the semi-circular sphere 20 will contact the arc surface on the other side of the same concave surface of the aluminum alloy corrugated plate in contact with the grinding wheel 18, thereby preventing the grinding wheel 18 from contacting and grinding the arc surface of the aluminum alloy corrugated plate. Because the grinding wheel 18 needs to be in close contact with the arc surface of the aluminum alloy corrugated plate, the grinding wheel 18 pushes the aluminum alloy corrugated plate to move along the surface of the T-shaped clamping plate 3, thereby making it difficult for the grinding wheel 18 to stably grind the arc surface of the aluminum alloy corrugated plate.

[0021] When the connecting rod 19 moves in an arc shape, the connecting rod 19 will drive the swivel 81 to move, and the swivel 81 will move along the surface of the arc block 84. Under the friction between the swivel 81 and the arc block 84, the swivel 81 will rotate while moving, and the rotation of the swivel 81 will drive the cleaning brush ring 82 to rotate. The rotation of the cleaning brush ring 82 will clean up the debris that the semi-circular ball 20 contacts with the arc surface of the aluminum alloy corrugated plate, so as to avoid the semi-circular ball 20 from simultaneously pushing the debris to the aluminum alloy corrugated plate when contacting the arc surface of the aluminum alloy corrugated plate. The arc surface is extruded, resulting in small holes being pressed out of the arc surface of the aluminum alloy corrugated plate by the debris. At the same time, when the connecting block 16 reciprocates, it will drive the connecting rod 19 and the abutting semi-circular ball 20 to reciprocate along the arc surface on the other side of the same concave surface of the aluminum alloy corrugated plate in contact with the grinding wheel 18. The movement of the connecting rod 19 will drive the rotating ring 81 and the cleaning brush ring 82 to reciprocate, so that the reciprocating movement of the cleaning brush ring 82 will clean up the debris on the arc surface of the aluminum alloy corrugated plate, thereby avoiding the problem of scratches on the arc surface of the aluminum alloy corrugated plate caused by the debris driven by the abutting semi-circular ball 20.

[0022] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a pressing device 9 is provided on the outer wall of the telescopic end of the electric push rod 11, and the pressing device 9 includes two long plates 91, and the sides of the two long plates 91 are fixedly connected to the outer wall of the telescopic end of the electric push rod 11, and the sides of the two long plates 91 are fixedly connected to two limit blocks 92, and a rotating rod 93 is rotatably connected between the two limit blocks 92, and a long block 94 is fixedly connected to the outer wall of the rotating rod 93, and a torsion spring 95 is provided between the long block 94 and the two limit blocks 92, and a long rod 96 is fixedly penetrated through the lower side of the long block 94, and both ends of the long rod 96 are fixedly connected There are limiting blocks 97, and a pressure roller 98 is rotatably connected between the two limiting blocks 97. A support block 99 is fixedly connected to the bottom of the long plate 91 close to the long block 94, and a resistance block 910 is fixedly connected to the side of the long plate 91 close to the long block 94. The support block 99 is in contact with the long block 94, and the resistance block 910 is located on the displacement trajectory of the long block 94. Through the setting of the above structure, the resistance block 910 will flatten the aluminum alloy corrugated plate through the pressure roller 98, the long rod 96, the limiting block 97, and the long block 94, thereby avoiding the aluminum alloy corrugated plate from bending when being polished, resulting in the problem of the aluminum alloy corrugated plate being damaged by polishing.

[0023] The pressing device 9 also includes a sponge roller 911, the inner wall of which is fixedly connected to the outer wall of the pressing roller 98. Through the arrangement of the above structure, the sponge roller 911 will protect the convex parts of the aluminum alloy corrugated plate, thereby avoiding the problem that the pressing roller 98 will scratch the convex parts of the aluminum alloy corrugated plate when the pressing roller 98 reciprocates.

[0024] During use, some aluminum alloy corrugated plates are made of relatively thin materials. Therefore, when the T-shaped clamping plate 3 clamps and fixes the aluminum alloy corrugated plate, the aluminum alloy corrugated plate will bend. Therefore, the telescopic end of the electric push rod 11 will drive the two long plates 91 to move downward. The downward movement of the two long plates 91 will drive the limit block 92 to move downward. The downward movement of the limit block 92 will drive the rotating rod 93 to move downward. The downward movement of the rotating rod 93 will drive the long block 94 to move downward. The downward movement of the long block 94 will drive the long rod 96, the limit block 97, and the pressure roller 98 to move downward, so that the pressure roller 98 contacts the convex part of the aluminum alloy corrugated plate, and then the reaction force of the aluminum alloy corrugated plate will cause the pressure roller 98 to pass through the long plate 91. The rod 96, the limiting block 97 and the long block 94 drive the rotating rod 93 to rotate and deform the torsion spring 95. The long block 94 will be subjected to the resistance force of the resistance block 910 during the rotation. Therefore, the resistance block 910 will press the aluminum alloy corrugated plate flat through the long rod 96, the limiting block 97 and the long block 94 via the pressure roller 98, thereby preventing the aluminum alloy corrugated plate from bending when being polished, causing the aluminum alloy corrugated plate to be damaged by polishing; at the same time, the pressure roller 98 will reciprocate with the electric push rod 11, so the sponge roller 911 will protect the convex part of the aluminum alloy corrugated plate, thereby preventing the pressure roller 98 from scratching the convex part of the aluminum alloy corrugated plate when the pressure roller 98 reciprocates.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding device for building materials, comprising a base (1), characterized in that: A controller (2) is provided on the side of the base (1); two corresponding slide grooves are provided on the top of the base (1); the inner walls of the two slide grooves are slidably connected to T-shaped clamping plates (3); a spring (4) is provided between the T-shaped clamping plates (3) and the base (1); a plurality of support rods (5) are fixedly connected to the top of the base (1); the tops of the plurality of support rods (5) are fixedly connected to the same protective plate (6); both sides of the protective plate (6) are fixedly connected to fixed blocks (7); a threaded rod (10) is rotatably connected between the two fixed blocks (7); the threaded rod (10) is driven by a motor, and the motor is fixedly connected to the side of one of the fixed blocks (7); the threaded rod (10) is 0) is threadedly connected to a threaded sleeve (1001), the bottom of the threaded sleeve (1001) is fixedly connected to an electric push rod (11), the telescopic end of the electric push rod (11) is fixedly connected to a placement plate (12), the bottom of the placement plate (12) is fixedly connected to two fixed arc plates (13), the arc surfaces of the two fixed arc plates (13) penetrate and rotate with a same rotating column (14), both ends of the rotating column (14) are fixedly connected to an adjusting wheel (15), the middle part of the outer wall of the rotating column (14) is fixedly connected to a connecting block (16), the bottom of the connecting block (16) is fixedly connected to a driver (17), and the output end of the driver (17) is fixedly connected to a grinding wheel (18).

2. A grinding device for building materials according to claim 1, characterized in that: Both sides of the connection block (16) are fixedly connected to connection rods (19), and ends of the two connection rods (19) away from the connection block (16) are fixedly connected to abutment semicircular balls (20).

3. A grinding device for building materials according to claim 2, characterized in that: The angle between the connecting rod (19) and the grinding wheel (18) is set to ninety-five degrees, and a slot for the connecting rod (19) to move is provided at the bottom of the placement plate (12).

4. A grinding device for building materials according to claim 2, characterized in that: The outer wall of the connecting rod (19) is provided with an anti-scratch device (8), the anti-scratch device (8) comprises a swivel (81), the inner wall of the swivel (81) is rotatably connected to the outer wall of the connecting rod (19), a cleaning brush ring (82) is fixedly connected to the side of the swivel (81), a connecting plate (83) is fixedly connected to the side of the placement plate (12), and an arc block (84) is fixedly connected to the side of the connecting plate (83).

5. A grinding device for building materials according to claim 4, characterized in that: The side surface of the arc block (84) contacts the outer wall of the rotating ring (81), and the cleaning brush ring (82) is located outside the abutting hemispherical ball (20).

6. A grinding device for building materials according to claim 1, characterized in that: The outer wall of the telescopic end of the electric push rod (11) is provided with a pressing device (9), and the pressing device (9) comprises two long plates (91), the side surfaces of the two long plates (91) are fixedly connected to the outer wall of the telescopic end of the electric push rod (11), the side surfaces of the two long plates (91) are fixedly connected to two limit blocks (92), a rotating rod (93) is rotatably connected between the two limit blocks (92), and the outer wall of the rotating rod (93) is fixedly connected to a long block (94), and the long block (94) ) and the two limit blocks (92), a torsion spring (95) is provided between each of the two limit blocks (92), a long rod (96) is fixedly passed through the lower side of the long block (94), both ends of the long rod (96) are fixedly connected to limit blocks (97), a pressure roller (98) is rotatably connected between the two limit blocks (97), a support block (99) is fixedly connected to the bottom of the long plate (91) on the side close to the long block (94), and a resistance block (910) is fixedly connected to the side of the long plate (91) close to the long block (94).

7. A grinding device for building materials according to claim 6, characterized in that: The pressing device (9) further comprises a sponge roller (911), wherein the inner wall of the sponge roller (911) is fixedly connected to the outer wall of the pressing roller (98).

8. A grinding device for building materials according to claim 6, characterized in that: The support block (99) is in contact with the long block (94), and the abutment block (910) is located on the displacement track of the long block (94).

Images