Stone surface polishing treatment method

Abstract

The invention relates to the technical field of stone treatment, in particular to a stone surface polishing treatment method which comprises the following steps that a plurality of plate-shaped stones are flatly laid on a placement platform in the transverse direction and the longitudinal direction at the same time, and the plate-shaped stones form a stone array; a long-strip-shaped division bar and a limiting blocking piece are placed on the placing platform, and the limiting blocking piece presses the division bar to one side of the stone array; the limiting assembly is used for connecting the limiting blocking piece with the containing platform; a polishing device obliquely abuts against the limiting stop piece to move, and the edge, close to the limiting stop piece, of the top face of the stone array is polished; after the edge of the side, close to the limiting blocking piece, of the top face of the stone array is polished, the parting strip, the limiting blocking piece and the limiting assembly are detached; the steps are repeated to polish the edge of each side of the top face of the stone array; and the polishing device is used for integrally polishing the surface of the stone array. The limiting device has the effect of conveniently carrying the limiting stop pieces.

Description

Technical Field

[0001] The present invention relates to the field of stone processing technology, and in particular to a method for grinding and processing the surface of stone. Background Art

[0002] In the field of stone processing, especially in the process of stone surface treatment, it is very important to ensure the quality and flatness of the stone surface. The traditional stone surface treatment method usually involves arranging multiple stones into a stone array and then grinding them by mechanical equipment. This treatment method not only improves production efficiency, but also ensures the consistency and beauty of the stone surface.

[0003] At present, a Chinese patent with the authorization announcement number CN113601313A discloses a method for treating the surface of a stone. In order to achieve efficient grinding of a stone array, a long strip of limit stopper is usually set on one side of the stone array. The function of the limit stopper is to guide the grinding device to move along a predetermined path, thereby ensuring uniform grinding of the edge of the stone. The limit stopper is fixed by temporarily fixing it on the placement platform using a sandbag or other heavy objects.

[0004] According to the above-mentioned related technologies, each time the edge of the stone array needs to be changed for grinding, the limit stopper needs to be moved to the side of the stone array that needs to be polished. When the limit stopper is temporarily fixed by heavy objects such as sandbags, the sandbags need to be moved each time the limit stopper is moved. The sandbags are heavy, which increases the difficulty of the workers to move the sandbags, and further increases the difficulty of moving the limit stopper. Summary of the invention

[0005] In order to facilitate the handling of the limit stopper, the present application provides a method for grinding the surface of a stone.

[0006] The present application provides a method for grinding the surface of a stone material, which adopts the following technical solution: A method for grinding a stone surface comprises the following steps: Laying a plurality of plate-like stones horizontally and vertically on a placement platform at the same time, so that the plurality of plate-like stones form a stone array; A long strip of spacer and a limit stopper are placed on the placement platform, the limit stopper presses the spacer against one side of the stone array, the top side of the limit stopper is higher than the top surface of the stone array, and the top side of the spacer is lower than the top surface of the stone array; The limit stopper is connected to the placement platform using a limit assembly, and the limit assembly is used to limit the limit stopper from sliding on the placement platform; Use the grinding device to tilt against the limit stopper and move, and grind the edge of the top surface of the stone array close to the limit stopper; After the edge of the top surface of the stone array close to the limit stopper is polished, the spacer, limit stopper and limit assembly are removed; Repeat the above steps to grind the edge of each side of the top surface of the stone array; The surface of the stone array is overall polished using a polishing device.

[0007] By adopting the above technical solution, the limit stopper is temporarily fixed on the placement platform through the limit assembly. When the position of the limit stopper needs to be adjusted, the limit stopper can be easily moved by simply releasing the limit assembly, thereby avoiding the inconvenience of carrying heavy objects such as sandbags in the traditional method. At the same time, this method can ensure that the limit stopper is stable and reliable during the grinding process, and prevent the problem of uneven grinding or damage to the stone due to loose limit stops.

[0008] Optionally, the limiting assembly includes a screw and a pressure ring, one end of the screw is hinged to the side of the limiting stop away from the stone array, the pressure ring is threadedly sleeved on the screw, and the placement platform is provided with a plurality of first slots for the pressure ring to enter, and the pressure ring is used to press the inner wall of the first slot away from the stone array.

[0009] By adopting the above technical solution, when the limit stopper is placed on one side of the stone array, the screw rod is passed over the top of the first slot, and then the pressure ring is rotated to move to the position of the first slot. After the pressure ring moves to the position of the first slot, the limit stopper falls and abuts against the placement platform, and the pressure ring enters the first slot. Then, the pressure ring is continuously rotated to make the pressure ring tightly abut against the inner wall of the first slot away from the stone array, thereby preventing the limit stopper from moving away from the stone array under the pressure of the grinding device.

[0010] When placing stones on the placement platform to form a stone array, generally one stone is placed first, and the subsequent stones are placed in close proximity to the already placed stones. Therefore, the position of the first placed stone may be tilted, causing the entire stone array to be offset. The screw is hinged to the limit stopper, and the screw is rotated to facilitate the adjustment of the pressure ring to align with the first slot.

[0011] Optionally, the limit assembly further comprises a card block, the card block is provided with a waist-shaped hole, the screw rod is passed through the waist-shaped hole, the placement platform is provided with a plurality of second card slots for the card block to enter, and the two sides of the card block are against the inner wall of the second card slot By adopting the above technical solution, after the pressure ring presses the inner wall of the first slot away from the stone array, the movable block slides on the screw rod to align the block with the second slot, and then the block is pressed into the second slot. The block and the inner wall of the second slot are mutually engaged, so that the limit stopper moves with the grinding device under the drive of the grinding device.

[0012] Optionally, the placement platform is divided into a main placement area and a secondary placement area from the middle to the periphery, the first card slot and the second card slot are arranged in a one-to-one correspondence, the first card slot and the second card slot are both located in the secondary placement area, the first card slot is connected to the second card slot, the second card slot is located on the side of the first card slot close to the main placement area, and the depth of the second card slot is less than the depth of the first card slot.

[0013] By adopting the above technical solution, the first card slot and the second card slot are opened in the secondary placement area, thereby reducing the number of the first card slot and the second card slot. After the pressure ring is aligned with the first card slot, the card block is pressed against the pressure ring, thereby facilitating the alignment of the card block with the second card slot.

[0014] Optionally, the inner bottom wall and two inner side walls of the first card slot are arc-shaped, and the inner bottom wall of the second card slot is gradually raised from one side close to the first card slot to the other side and is inclined.

[0015] By adopting the above technical solution, the dust generated by grinding the stone will fall into the first card slot and the second card slot. The inner bottom wall of the second card slot is clean, so it is convenient for the dust to enter the first card slot from the second card slot. The first card slot is arc-shaped, so it is convenient to take the dust out of the first card slot.

[0016] Optionally, after the limit stopper is connected to the placement platform using the limit assembly, the following steps are further included: A supporting mechanism is placed at the corner of the stone array close to the limit stopper, and the supporting mechanism is used to provide support for the grinding device when it moves to the corner of the stone array.

[0017] By adopting the above technical solution, when the grinding device grinds to the corners of the stone array, the supporting mechanism supports the grinding device, thereby facilitating the grinding device to grind the corners of the stone array.

[0018] Optionally, the support mechanism includes an insert block, a telescopic rod, a support frame, a support plate, a sliding rod and a locking assembly, the insert block damping is inserted in the first slot and the second slot, one end of the telescopic rod is fixedly connected to the top side of the insert block, and the other end of the telescopic rod is abutted against the bottom side of the support plate, the support frame is fixedly installed on the bottom surface of the support plate, the support frame is arranged along the edge of the support plate, the end of the telescopic rod away from the insert block is radially provided with a sliding hole, the sliding rod is penetrated into the sliding hole, there are two sliding rods and they are perpendicular to each other, the two sliding rods are staggered in the height direction on the telescopic rod, the inner wall of the support frame is provided with a sliding groove for the sliding end of the sliding rod, and the locking assembly is installed on the sliding rod, and the locking assembly is used to limit the sliding rod from sliding along the sliding hole.

[0019] By adopting the above technical solution, the insert block is inserted into the first card slot and the second card slot to play a limiting role, thereby reducing the horizontal movement of the support mechanism driven by the grinding device. Adjust the length of the telescopic rod to make the support plate flush with the top surface of the stone array. Then push the support plate against the side wall and the limit stopper of the stone array, and then use the locking assembly to limit the sliding rod from sliding along the sliding hole, so that the support plate remains fixed, which makes it easier for the support plate to support the grinding device.

[0020] Optionally, each of the sliding rods has two locking assemblies, and the locking assemblies on the same sliding rod are located on both sides of the telescopic rod. The locking assemblies include a nut, and the nut is threadedly sleeved on the sliding rod.

[0021] By adopting the above technical solution, the nut is rotated to make the nut tightly abut against the rod body of the telescopic rod, thereby conveniently limiting the sliding movement of the sliding rod along the sliding hole.

[0022] Optionally, each of the sliding rods has two locking assemblies, and the locking assemblies on the same sliding rod are located on both sides of the telescopic rod, the locking assemblies include a mounting block, a first pressing tube, a second pressing tube and a sphere, a screw hole is provided on one side of the mounting block, and a pressing hole is provided on the other side of the mounting block, one end of the screw hole is connected to one end of the pressing hole, and the inner diameter of the pressing hole gradually decreases from one end away from the screw hole to the other end, one end of the first pressing tube is fixedly connected to one end of the second pressing tube, the first pressing tube is threaded through the screw hole, the second pressing tube is located inside the pressing hole, and the diameter of the second pressing tube gradually decreases from one end away from the first pressing tube to the other end, and there are multiple spheres, and the spheres are interference fit in the tube body of the second pressing tube.

[0023] By adopting the above technical solution, the mounting block is pressed against the rod body of the telescopic rod, and then the first pressing tube is rotated, and the first pressing tube drives the second pressing tube to move away from the telescopic rod, so that the ball is squeezed against the inner wall of the pressing hole, and the ball is pressed against the sliding rod, thereby limiting the sliding of the sliding rod along the sliding hole.

[0024] Optionally, support blocks are fixedly mounted on both ends of the slide rod, and the support blocks are pressed against the inner wall of the support frame and the bottom side of the support plate.

[0025] By adopting the above technical solution, the support block supports the edge of the support plate, thereby reducing the occurrence of bending of the edge of the support plate after being compressed.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the limit stopper limits the grinding device on one side of the stone array, the pressure ring is inserted into the first slot and the card block is inserted into the second slot, thereby fixing the limit stopper on the placement platform to reduce the possibility that the grinding device pushes the limit stopper to move. When the limit stopper needs to be moved to the other side of the stone array, the pressure ring is pulled out from the first slot and the card block is pulled out from the second slot, thereby facilitating the movement of the limit stopper; 2. Insert the insert block into the first slot and the second slot to fix it, adjust the length of the telescopic rod so that the top surface of the support plate is flush with the top surface of the stone array, then let the support plate abut against the limit stopper and the stone array, and use the locking assembly to limit the sliding rod from sliding along the sliding hole to keep the support plate fixed. When the grinding device grinds to the edge of the stone array, the support plate supports the grinding device, thereby reducing the possibility of the grinding device tipping over at the corners of the stone array. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the first viewing angle of Example 1 of the present application; Figure 2 is a schematic diagram of the structure of the placement platform of Example 1 of the present application; Figure 3 is a schematic diagram of the overall structure of the second viewing angle of Example 1 of the present application; Figure 4 yes Figure 3 A magnified view at point A; Figure 5 is an exploded view of the limit assembly of Example 1 of the present application; Figure 6 is a schematic structural diagram of the support mechanism of Example 1 of the present application; Figure 7 is an exploded view between the telescopic rod and the sliding rod of Example 1 of the present application; Figure 8 is a cross-sectional view of the locking assembly of Example 1 of the present application along the radial direction of the slide rod; Fig. 9 It is a schematic diagram of the structure of the support mechanism of Example 2 of the present application.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. Stone array; 2. Placement platform; 3. Main placement area; 4. Secondary placement area; 5. Limit stopper; 6. Limit assembly; 61. Screw; 62. Pressing ring; 63. Block; 7. Waist-shaped hole; 8. First slot; 9. Second slot; 10. Support mechanism; 101. Insert block; 102. Telescopic rod; 103. Support frame; 104. Support plate; 105. Slide rod; 106. Locking assembly; 1061. Mounting block; 1062. First pressing tube; 1063. Second pressing tube; 1064. Sphere; 1065. Nut; 11. Sliding hole; 12. Sliding groove; 13. Support block; 14. Grinding device; 15. Spacer; 16. Pressing hole; 17. Screw hole. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-9 This application is described in further detail.

[0030] Example 1 The embodiment of the present application discloses a method for grinding the surface of a stone.

[0031] Reference Figure 1 , Figure 2 , a method for grinding a stone surface, comprising the following steps: S1. Lay a plurality of plate-shaped stones horizontally and vertically on a placement platform 2 at the same time.

[0032] The placement platform 2 is divided into a main placement area 3 and a secondary placement area 4 from the middle to the periphery. After the stone is placed in the middle of the main placement area 3, the remaining stones are placed against the stones already placed on the placement platform 2, so that a plurality of plate-like stones are laid out horizontally and vertically to form a stone array 1.

[0033] Reference Figure 1 , S2, place a long strip of spacer 15 and a limit stopper 5 on the placement platform 2, and the limit stopper 5 presses the spacer 15 against one side of the stone array 1.

[0034] The limit stopper 5 is used for the grinding device 14 to abut against, and then the grinding device 14 moves against the limit stopper 5, so as to facilitate the grinding device 14 to grind the edge of the stone array 1. The top side of the limit stopper 5 is higher than the top surface of the stone array 1, and the top side of the partition bar 15 is lower than the top surface of the stone array 1, so as to facilitate the grinding device 14 to partially exceed the edge of the stone array 1, and then facilitate the grinding device 14 to cover the edge of the stone array 1 for grinding.

[0035] Reference Figure 3 , Figure 4 , S3, use the limit assembly 6 to connect the limit stopper 5 to the placement platform 2.

[0036] Reference Figure 4 , Figure 5The limiting assembly 6 includes a screw 61, a pressure ring 62 and a block 63. One end of the screw 61 is hinged to the side of the limiting stopper 5 away from the stone array 1, so that the screw 61 can swing in the horizontal direction. The pressure ring 62 is threadedly sleeved on the screw 61, and the block 63 is provided with a waist-shaped hole 7, and the screw 61 is inserted into the waist-shaped hole 7. The secondary placement area 4 of the placement platform 2 is provided with a plurality of first slots 8 and second slots 9. The inner bottom wall and the two inner side walls of the first slot 8 are arc-shaped for the pressure ring 62 to enter, and the second slot 9 is for the block 63 to enter. The inner bottom wall of the second slot 9 is gradually raised from one side close to the first slot 8 to the other side and is inclined. The second slot 9 is located on the side of the first slot 8 close to the main placement area 3, and the depth of the second slot 9 is less than the depth of the first slot 8.

[0037] The area of ​​the main placement area 3 is smaller than the area of ​​the stone array 1. After the stone array 1 is placed on the placement platform 2, the stone array 1 will cover the main placement area 3. The first card slot 8 and the second card slot 9 are only provided in the secondary placement area 4, thereby reducing the number of the first card slots 8 and the second card slots 9 provided.

[0038] When placing stones on the placement platform 2, one stone is placed first, and the subsequent stones are placed against the already placed stones to form a stone array 1. If the first placed stone tilts, the entire stone array 1 will also tilt. After placing the limit stopper 5 on one side of the stone array 1, the screw rod 61 is rotated to swing horizontally, so that the screw rod 61 passes above the first clamping groove 8, thereby reducing the situation where the stone array 1 tilts and the pressure ring 62 cannot enter the first clamping groove 8.

[0039] Then, the pressing ring 62 is rotated to move the pressing ring 62 to the top of the first slot 8, and then the pressing ring 62 is inserted into the first slot 8. After the pressing ring 62 is inserted into the first slot 8, the pressing ring 62 is further rotated to make the pressing ring 62 tightly against the inner side wall of the first slot 8 away from the stone array 1, thereby limiting the movement of the limit stopper 5 away from the stone array 1.

[0040] After the pressing ring 62 is pressed against the inner side wall of the first slot 8 away from the stone array 1, the movable block 63 is pressed against the pressing ring 62, so that the block 63 is aligned with the second slot 9. Then the block 63 is inserted into the second slot 9. The block 63 and the inner side wall of the second slot 9 are engaged with each other, thereby limiting the movement of the limit stopper 5 along with the grinding device 14.

[0041] When the block 63 is inserted into the second slot 9, the block 63 partially enters the first slot 8, and the block 63 presses the pressing ring 62. After the block 63 and the pressing ring 62 are inserted into the first slot 8 and the second slot 9, there is damping, thereby reducing the block 63 and the pressing ring 62 from being automatically pulled out of the first slot 8 and the second slot 9.

[0042] The dust generated during the grinding process may enter the first card slot 8 and the second card slot 9. The inner bottom wall of the second card slot 9 is cleaned to facilitate the dust inside the second card slot 9 to enter the first card slot 8. When the pressure ring 62 enters the first card slot 8 and rotates, since the inner wall of the first card slot 8 is arc-shaped, the surrounding side of the pressure ring 62 pushes the dust inside the first card slot 8 to move out, thereby reducing the situation where the dust hinders the pressure ring 62 from entering the first card slot 8. After waiting for the stone to be polished, the dust inside the placement platform 2, the first card slot 8 and the second card slot 9 are cleaned together, thereby reducing the time spent on cleaning the dust.

[0043] Reference Figure 1 , S4, placing a supporting mechanism 10 at the corner of the stone array 1 close to the limit stopper 5.

[0044] Reference Figure 6 , Figure 7 , Figure 8 The support mechanism 10 includes an insert block 101, a telescopic rod 102, a support frame 103, a support plate 104, a slide bar 105 and a locking assembly 106. The insert block 101 is used for damping insertion in the first card slot 8 and the second card slot 9, one end of the telescopic rod 102 is fixedly connected to the top side of the insert block 101, and the other end of the telescopic rod 102 is against the bottom side of the support plate 104.

[0045] The support frame 103 is fixedly mounted on the bottom surface of the support plate 104, and the support frame 103 is arranged along the edge of the support plate 104. Two sliding holes 11 are radially opened at one end of the telescopic rod 102 away from the plug block 101, and the axial directions of the two sliding holes 11 are perpendicular to each other, and the two sliding holes 11 are staggered in the height direction. There are two sliding rods 105, and the sliding rods 105 are arranged one by one with the sliding holes 11. The sliding rods 105 are inserted into the sliding holes 11. The inner wall of the support frame 103 is provided with a sliding groove 12 for the end of the sliding rod 105 to slide.

[0046] Each slide bar 105 has two locking assemblies 106. The locking assemblies 106 on the same slide bar 105 are located on both sides of the telescopic rod 102. The locking assemblies 106 include a mounting block 1061, a first pressing tube 1062, a second pressing tube 1063 and a sphere 1064. A screw hole 17 is provided on one side of the mounting block 1061, and a pressing hole 16 is provided on the other side of the mounting block 1061. One end of the screw hole 17 is connected to one end of the pressing hole 16, and the inner diameter of the pressing hole 16 gradually decreases from one end away from the screw hole 17 to the other end. One end of the first pressing tube 1062 is fixedly connected to one end of the second pressing tube 1063. The first pressing tube 1062 is threadedly penetrated into the screw hole 17, and the second pressing tube 1063 is located inside the pressing hole 16. The diameter of the second pressing tube 1063 gradually decreases from one end away from the first pressing tube 1062 to the other end. There are multiple spheres 1064, and the spheres 1064 are interference fit in the tube body of the second pressing tube 1063.

[0047] After the limit stopper 5 is placed on one side of the stone array 1 and connected to the placement platform 2 through the limit assembly 6, the support plate 104 is placed at the corner of the stone array 1 close to the limit stopper 5, and the support plate 104 is at the end of the movement of the grinding device 14.

[0048] Then move the telescopic rod 102 to insert the insert block 101 into the first slot 8 and the second slot 9. Adjust the length of the telescopic rod 102 to make the top surface of the support plate 104 flush with the top surface of the stone array 1. Then move the support plate 104 to make it abut against the stone array 1 and the limit stopper 5, so that the support plate 104 can support the grinding device 14.

[0049] After the support plate 104 is pressed against the stone array 1 and the stopper 5, the mounting block 1061 is moved so that the mounting block 1061 is pressed against the telescopic rod 102. Then the first pressing tube 1062 is rotated, and the first pressing tube 1062 drives the second pressing tube 1063 to move away from the telescopic rod 102. In the process of the second pressing tube 1063 moving away from the telescopic rod 102, the ball 1064 is squeezed by the inner wall of the pressing hole 16 and gradually presses the rod body of the slide rod 105, thereby limiting the slide rod 105 from sliding along the slide hole 11, and thus facilitating the support plate 104 to remain fixed.

[0050] When the grinding device 14 grinds the stone array 1 afterwards, the support plate 104 supports the grinding device 14 , thereby reducing the possibility of the grinding device 14 tipping over at the corners of the stone array 1 .

[0051] Support blocks 13 are fixedly mounted at both ends of the slide bar 105, and the support blocks 13 are elastically pressed against the inner wall of the support frame 103 and the bottom side of the support plate 104. The support blocks 13 support the edge of the support plate 104, thereby reducing the occurrence of the edge of the support plate 104 being squeezed by the grinding device 14 and bending downward.

[0052] S5 , using the grinding device 14 to move against the limit stopper 5 in an inclined manner, and grinding the edge of the top surface of the stone array 1 close to the limit stopper 5 .

[0053] S6. After the edge of the top surface of the stone array 1 close to the limit stopper 5 is polished, the spacer 15, the limit stopper 5, the limit assembly 6 and the support mechanism 10 are removed.

[0054] S7, repeat steps S1-S6 to grind the edges of each side of the top surface of the stone array 1 S8, using the grinding device 14 to grind the surface of the stone array 1 as a whole The implementation principle of the stone surface grinding treatment method of the embodiment of the present application is as follows: after grinding the edge of the top surface of the stone array 1 close to the limit stopper 5, the spacer 15, the limit stopper 5, the limit assembly 6 and the support mechanism 10 are removed. Compared with the traditional sandbags, the limit assembly 6 and the support mechanism 10 are lighter, so it is convenient to carry the limit stopper 5 to the other side of the stone array 1 for installation.

[0055] Example 2 The embodiment of the present application discloses a method for grinding the surface of a stone.

[0056] Reference Fig. 9 The difference between the stone surface grinding method of the embodiment of the present application and the embodiment 1 lies in the locking assembly 106 , which includes a nut 1065 , which is threadedly sleeved on the slide rod 105 .

[0057] The implementation principle of a stone surface grinding treatment method in an embodiment of the present application is: rotate the two nuts 1065 on the slide rod 105 so that the two nuts 1065 press the telescopic rod 102 together, thereby facilitating the slide rod 105 to slide along the slide hole 11, and then facilitating the support plate 104 to remain fixed for supporting the grinding device 14.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for grinding a stone surface, characterized in that: The following steps are involved: Laying a plurality of plate-like stones horizontally and vertically on a placement platform (2) at the same time, so that the plurality of plate-like stones form a stone array (1); A long strip of spacer (15) and a limit stopper (5) are placed on the placement platform (2), the limit stopper (5) presses the spacer (15) against one side of the stone array (1), the top side of the limit stopper (5) is higher than the top surface of the stone array (1), and the top side of the spacer (15) is lower than the top surface of the stone array (1); The limit stopper (5) is connected to the placement platform (2) using a limit assembly (6), wherein the limit assembly (6) is used to limit the limit stopper (5) from sliding on the placement platform (2); Using a grinding device (14) to tilt and abut against the limit stopper (5) to move and grind the edge of the top surface of the stone array (1) close to the limit stopper (5); After the edge of the top surface of the stone array (1) close to the limit stopper (5) is polished, the spacer (15), the limit stopper (5) and the limit assembly (6) are removed; Repeat the above steps to grind the edge of each side of the top surface of the stone array (1); The surface of the stone array (1) is polished as a whole using a polishing device (14).

2. A method for grinding a stone surface according to claim 1, characterized in that: The limiting assembly (6) comprises a screw rod (61) and a pressure ring (62), one end of the screw rod (61) is hinged to a side of the limiting stopper (5) away from the stone array (1), the pressure ring (62) is threadedly sleeved on the screw rod (61), the placement platform (2) is provided with a plurality of first slots (8) for the pressure rings (62) to enter, and the pressure ring (62) is used to press the inner side wall of the first slot (8) away from the stone array (1).

3. A method for grinding a stone surface according to claim 2, characterized in that: The limiting assembly (6) further comprises a clamping block (63), the clamping block (63) being provided with a waist-shaped hole (7), the screw rod (61) being passed through the waist-shaped hole (7), the placing platform (2) being provided with a plurality of second clamping grooves (9) for the clamping block (63) to enter, and two sides of the clamping block (63) being in contact with inner walls of the second clamping grooves (9).

4. A method for grinding a stone surface according to claim 3, characterized in that: The placement platform (2) is divided into a main placement area (3) and a secondary placement area (4) from the middle to the periphery, the first card slot (8) and the second card slot (9) are arranged in a one-to-one correspondence, the first card slot (8) and the second card slot (9) are both located in the secondary placement area (4), the first card slot (8) is connected to the second card slot (9), the second card slot (9) is located on a side of the first card slot (8) close to the main placement area (3), and the depth of the second card slot (9) is less than the depth of the first card slot (8).

5. A method for grinding a stone surface according to claim 4, characterized in that: The inner bottom wall and two inner side walls of the first clamping slot (8) are arc-shaped, and the inner bottom wall of the second clamping slot (9) is gradually raised from one side close to the first clamping slot (8) to the other side and is inclined.

6. A method for grinding a stone surface according to claim 4, characterized in that: After the limit stopper (5) is connected to the placement platform (2) using the limit assembly (6), the following steps are also included: A support mechanism (10) is placed at a corner of the stone array (1) close to the limit stopper (5), and the support mechanism (10) is used to provide support for the grinding device (14) when it moves to the corner of the stone array (1).

7. A method for grinding a stone surface according to claim 6, characterized in that: The support mechanism (10) comprises an insert block (101), a telescopic rod (102), a support frame (103), a support plate (104), a sliding rod (105) and a locking assembly (106); the insert block (101) is dampedly inserted into a first card slot (8) and a second card slot (9); one end of the telescopic rod (102) is fixedly connected to the top side of the insert block (101); the other end of the telescopic rod (102) is abutted against the bottom side of the support plate (104); the support frame (103) is fixedly mounted on the bottom surface of the support plate (104); the support frame (103) is arranged along the support plate (104) The support frame (103) is provided with a sliding groove (12) on the inner wall of the support frame (103) for sliding movement of the end of the sliding rod (105), and the locking assembly (106) is installed on the sliding rod (105), and the locking assembly (106) is used to limit the sliding movement of the sliding rod (105) along the sliding hole (11).

8. A method for grinding a stone surface according to claim 7, characterized in that: Each of the sliding rods (105) has two locking assemblies (106); the locking assemblies (106) on the same sliding rod (105) are located on both sides of the telescopic rod (102); the locking assemblies (106) include a nut (1065); and the nut (1065) is threadedly sleeved on the sliding rod (105).

9. The method for grinding a stone surface according to claim 7, characterized in that: Each of the sliding rods (105) has two locking assemblies (106). The locking assemblies (106) on the same sliding rod (105) are located on both sides of the telescopic rod (102). The locking assemblies (106) include a mounting block (1061), a first pressing tube (1062), a second pressing tube (1063) and a sphere (1064). A screw hole (17) is provided on one side of the mounting block (1061), and a pressing hole (16) is provided on the other side of the mounting block (1061). One end of the screw hole (17) is connected to one end of the pressing hole (16). The inner diameter of the hole (16) gradually decreases from one end away from the screw hole (17) to the other end; one end of the first pressing tube (1062) is fixedly connected to one end of the second pressing tube (1063); the first pressing tube (1062) is threadedly inserted into the screw hole (17); the second pressing tube (1063) is located inside the pressing hole (16); the diameter of the second pressing tube (1063) gradually decreases from one end away from the first pressing tube (1062) to the other end; there are a plurality of spheres (1064); and the spheres (1064) are interference fit in the tube body of the second pressing tube (1063).

10. The method for grinding the surface of a stone according to claim 7, characterized in that: Support blocks (13) are fixedly mounted on both ends of the sliding rod (105), and the support blocks (13) are in contact with the inner wall of the support frame (103) and the bottom side of the support plate (104).

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