Clamping device for polishing machine for stone polishing
By designing a clamping device with a combination of top block and convex block, and a gear and rack transmission, the problem that existing stone grinding machine clamping devices cannot flip stones of different specifications has been solved, realizing automatic flipping and efficient polishing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGMEN SHUNCHENG STONE CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-15
AI Technical Summary
Existing polishing machines used for stone grinding cannot effectively clamp and rotate stones of different sizes, which increases the workload of operators and affects the efficiency of polishing work.
A clamping device was designed, which uses the cooperation of the top block and the protrusion to enable the clamping roller to clamp stones of different sizes, and realizes the automatic flipping of the stones through the mechanical transmission of gears and racks, simplifying the operation of flipping the stones.
It enables stable clamping and automatic flipping of stones of different specifications, improving the efficiency of stone polishing and reducing the steps and time required for manual flipping.
Smart Images

Figure CN224239221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stone processing technology, specifically a clamping device for a polishing machine used for stone grinding. Background Technology
[0002] As we all know, stone is a building decoration material widely used in interior and exterior decoration design, curtain wall decoration and public facility construction. Currently, the most common types of stone on the market are natural stone and artificial stone. Natural stone is a non-renewable resource, and excessive mining will seriously damage the ecological balance. Artificial stone is made by using cement as a binder and sand and natural crushed stone as coarse and fine aggregates. After being prepared, mixed, pressurized, steamed, ground and polished, it imitates natural stone. After being made into stone slabs, it needs to be ground and polished by a polishing machine.
[0003] The clamping devices on existing stone polishing machines are mostly simple in structure and cannot clamp and limit stones of different sizes. When polishing the other side of the stone slab, the operator needs to disassemble the stone, flip it over and reinstall it before different sides of the stone can be polished. This increases the workload of the operator and affects the efficiency of the polishing work. Summary of the Invention
[0004] Technical problems to be solved
[0005] In order to overcome the problem that existing clamping devices for stone polishing machines cannot clamp and flip stones of different specifications, this utility model provides a clamping device for stone polishing machines that can clamp and flip stones of different specifications.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for a polishing machine used for stone grinding, comprising a base, two sets of support seats disposed on one side of the base, a mounting block rotatably disposed inside the support seats, and a clamping assembly disposed on the outside of the mounting block. The clamping assembly includes a horizontal plate slidably disposed on the outside of the mounting block. Two sets of parallel central shafts are disposed inside the horizontal plate. A swing plate is rotatably disposed on the outside of the central shafts. The swing plate is inclined; when one side of the swing plate is pushed, the swing plate will pull the horizontal plate away from the central shafts during its swing. A fixed shaft is rotatably mounted on one side of the shaft, and the outer side of the fixed shaft is fixedly mounted to the mounting plate. Two sets of movable plates are provided on one side of the horizontal plate, and two sets of sliders are slidably mounted on the outer side of the movable plates. A protrusion is provided on one side of the slider, and a top block is provided on both sides of the movable plate. When the top block moves, it will push the slider to move by pushing the protrusion. A locking rod is provided on the side of the slider away from the protrusion. After the slider moves, it will drive the locking rod to move and lock the stone. This allows the device to clamp stones of different sizes. A drive component is also provided inside the mounting block, and one side of the drive component is fixedly mounted to the mounting plate.
[0008] Preferably, a connecting post is provided on one side of the mounting block, the connecting post is rotatably disposed inside the support base, a first gear is provided on the outer side of the connecting post, a rotating motor is provided inside the support base, and a second gear is keyed to the output end of the rotating motor, and the first gear and the second gear mesh.
[0009] Furthermore, the mounting block is provided with two sets of fixing plates on the side near the support base, and springs are provided on both sides of the fixing plates. The end of the spring away from the fixing plate is fixedly mounted to the slider.
[0010] Furthermore, a limiting plate is provided inside the fixed plate, and the slider is slidably disposed on the outside of the limiting plate.
[0011] In a further embodiment, two sets of buffer pads are provided on the outer side of the limiting plate. The buffer pads are rubber buffer pads, and the outer side of the buffer pads is in contact with the outer side of the slider.
[0012] Based on the aforementioned scheme, the top block is a circular top block, the protrusion is a semi-elliptical protrusion, and the thickness of the protrusion is less than the thickness of the top block.
[0013] Furthermore, based on the aforementioned scheme, the drive assembly includes a rotary motor disposed inside the mounting block. The output end of the rotary motor is key-connected to a first threaded tube. A rotating column is disposed at the end of the first threaded tube away from the rotary motor. A second threaded tube is disposed at the end of the rotating column away from the first threaded tube. Sleeves are screwed onto the outer sides of both the first and second threaded tubes. A push plate is disposed on the outer side of the sleeve. The side of the push plate away from the sleeve is fixedly disposed with the mounting plate.
[0014] Furthermore, based on the aforementioned scheme, two sets of discs are provided on the outer side of the connecting column, and the two sets of discs are located on both sides of the support base.
[0015] Beneficial effects
[0016] This clamping device for stone polishing machines uses a top block and a convex block to engage. When the top block moves the convex block, the clamping rollers are moved by the slider. The relative movement of the two sets of clamping rollers clamps the stone between them, allowing stones of different sizes to be stably installed on the device. At the same time, the engagement between the first and second gears allows the mounting block to rotate the stone, enabling the stone to be flipped without reinstallation, thus speeding up the efficiency of stone polishing. Attached Figure Description
[0017] Figure 1 This is a side view of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the mounting block of this utility model;
[0019] Figure 3 This is a schematic diagram of the clamping assembly of this utility model;
[0020] Figure 4 This is a partial structural schematic diagram of the clamping assembly of this utility model;
[0021] Figure 5 This is a partial structural schematic diagram of the clamping assembly of this utility model;
[0022] Figure 6 This is a cross-sectional view of the mounting block of this utility model;
[0023] Figure 7 This is a schematic diagram of the structure of the drive component of this utility model;
[0024] Figure 8 This is a cross-sectional view of the support base of this utility model.
[0025] In the diagram: 1. Base; 2. Clamping assembly; 201. Horizontal plate; 202. Limiting plate; 203. Buffer pad; 204. Spring; 205. Fixing plate; 206. Slider; 207. Protrusion; 208. Top block; 209. Movable plate; 210. Clamping roller; 211. Anti-slip pad; 212. Mounting plate; 213. Central shaft; 214. Swinging plate; 215. Placement plate; 216. Fixing shaft; 3. Drive assembly; 301. Rotary motor; 302. First threaded tube; 303. Sleeve; 304. Rotating column; 305. Push plate; 306. Second threaded tube; 4. Mounting block; 5. Support base; 6. First gear; 7. Connecting column; 8. Rotary motor; 9. Second gear. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] See Figures 1-8 A clamping device for a polishing machine used for stone grinding includes a base 1. Two sets of support seats 5 are bolted to the top of the base 1. A connecting column 7 is rotatably connected inside the support seat 5. One end of the connecting column 7 is bolted to a mounting block 4. A first gear 6 and two sets of discs are arranged on the outer side of the connecting column 7, with the two sets of discs located on opposite sides of the support seat 5. The discs prevent the connecting column 7 from detaching from the support seat 5. A rotating motor 8 is installed inside the support seat 5. A second gear 9 is keyed to the output end of the rotating motor 8. A drive assembly 3 is installed inside the mounting block 4. A clamping assembly 2 is arranged on the outer side of the mounting block 4. One side of the drive assembly 3 and one side of the clamping assembly 2 are fixed. When the rotating motor 8 is turned on, causing its output end to drive the second gear 9 to rotate, the rotation of the second gear 9 will drive the first gear 6 to rotate. The rotation of the first gear 6 will drive the connecting column 7 to rotate, thereby driving the mounting block 4 to rotate. The rotation of the mounting block 4 will cause the clamping assembly 2 to flip, thus flipping the stone fixed by the clamping assembly 2, thereby completing the flipping of the stone.
[0028] First, refer to Figures 1 to 5In this embodiment, the clamping assembly 2 includes a horizontal plate 201 slidably disposed on one side of the mounting block 4. Two sets of movable plates 209 are welded to one side of the horizontal plate 201, and two sets of central shafts 213 are welded inside the horizontal plate 201. A swing plate 214 is rotatably connected to the outside of the central shaft 213. The swing plates 214 are inclined, and the two sets of swing plates 214 are inclined in opposite directions. A fixed shaft 216 is rotatably connected to the side of the swing plate 214 away from the central shaft 213. Placement plates 215 are welded to both ends of the fixed shaft 216. One side of each set of placement plates 215 is welded to the mounting plate 212, and the mounting plate 212 is fixedly connected to one side of the drive assembly 3. Two sets of sliders are slidably connected to the outside of the movable plate 209. 206. A protrusion 207 is welded to one side of the slider 206. Top blocks 208 are welded to the top and bottom of the movable plate 209. Slide grooves are opened inside both the slider 206 and the protrusion 207, and the width of the inner wall of the slide groove is adapted to the width of the movable plate 209. The top block 208 is a circular top block, and the protrusion 207 is a semi-elliptical protrusion. The thickness of the top block 208 is greater than the thickness of the protrusion 207. Therefore, the movable plate 209 will not be blocked by the protrusion 207 and the slider 206 when it moves. The top block 208 will push the protrusion 207 when it moves. A locking rod 210 is provided on one side of the slider 206. An anti-slip pad 211 is provided at the end of the locking rod 210 away from the slider 206. The anti-slip pad 211 is a rubber anti-slip pad.
[0029] Then, refer to Figures 1 to 4 In this embodiment, two sets of fixing plates 205 are welded to the side of the mounting block 4 near the support base 5. Springs 204 are fixedly installed on both sides of the fixing plates 205. The end of the spring 204 away from the fixing plate 205 is fixedly installed with the slider 206. Thus, when the slider 206 is pushed, the spring 204 will be squeezed by the slider 206. When the slider 206 is no longer pushed, the spring 204 will drive the clamping rod 210 to move back by bouncing the slider 206 back, so that the clamping rod 210 quickly returns to the initial position and no longer jams the stone.
[0030] Secondly, see Figures 1 to 4In this embodiment, a limiting plate 202 is provided inside the fixed plate 205, and the slider 206 is slidably disposed on the outside of the limiting plate 202. The limiting plate 202 is a rectangular limiting plate, and the limiting plate 202 can be replaced with a polygonal limiting plate with no less than three sides. Two sets of buffer pads 203 are provided on the outside of the limiting plate 202. The buffer pads 203 are rubber buffer pads, and the outside of the buffer pads 203 are in contact with the outside of the slider 206. The buffer pads 203 block the slider 206 and prevent the slider 206 from detaching from the limiting plate 202. Thus, on the one hand, the limiting plate 202 maintains the balance of the slider 206 during movement, preventing the slider 206 from becoming unbalanced and wobbling during movement, and ensuring the normal displacement of the slider 206. On the other hand, the limiting plate 202 restricts the direction of the slider 206, preventing the device from failing due to the misalignment of the slider 206, and ensuring the normal use of the device.
[0031] When the mounting plate 212 is pushed and moved laterally, the mounting plate 212 will push the fixed shaft 216 to move by driving the placement plate 215 to move. The movement of the fixed shaft 216 will push one side of the swing plate 214. At this time, the swing plate 214 will swing around the central shaft 213. At the same time, the swing plate 214 will drive the horizontal plate 201 to move by pulling the central shaft 213 to move. The movement of the horizontal plate 201 will drive the two sets of movable plates 209 to move. The movement of the movable plates 209 will drive the top block 208 to move and push the protrusion 207. The movement of the protrusion 207 will drive the locking roller 210 to move by driving the slider 206 to move, so that the two sets of locking rollers 210 move towards each other and clamp the stone.
[0032] Finally, see Figures 6 to 7In this embodiment, the drive assembly 3 includes a rotary motor 301 disposed inside the mounting block 4. The rotary motor 301 is a bidirectional motor, and its output end can rotate forward or backward. The output end of the rotary motor 301 is key-connected to a first threaded tube 302. A rotating column 304 is disposed at the end of the first threaded tube 302 away from the rotary motor 301, and a second threaded tube 306 is disposed at the end of the rotating column 304 away from the first threaded tube 302. The threads on the outer sides of the first threaded tube 302 and the second threaded tube 306 are in opposite directions. A sleeve 303 is screwed onto the outer side of both the first threaded tube 302 and the second threaded tube 306. When 306 rotates, the two sets of sleeves 303 move towards each other or away from each other. A push plate 305 is provided on the outside of the sleeve 303. The side of the push plate 305 away from the sleeve 303 is fixedly set with the mounting plate 212. When the rotary motor 301 is turned on and its output end drives the first threaded tube 302 to rotate, the first threaded tube 302 will drive the second threaded tube 306 to rotate by driving the rotating column 304 to rotate. The rotation of the first threaded tube 302 and the second threaded tube 306 will drive the two sets of sleeves 303 to move linearly. The movement of the sleeves 303 will drive the push plate 305 to move. The movement of the push plate 305 will push the mounting plate 212 to move laterally.
[0033] The clamping device for the polishing machine used for stone grinding, through the cooperation between the top block 208 and the protrusion 207, when the top block 208 pushes the protrusion 207 to move, the clamping roller 210 will be driven to move by the slider 206. At this time, the relative movement of the two sets of clamping rollers 210 will clamp the stone between the two sets of clamping rollers 210, so that stones of different specifications can be stably installed on the device. At the same time, through the cooperation between the first gear 6 and the second gear 9, the mounting block 4 can drive the stone to flip, so that stones of different specifications can be flipped without reinstallation, thus speeding up the efficiency of stone polishing.
[0034] Working principle:
[0035] The stone polishing machine clamping device is used by placing the device in the desired position first, then installing the stone. Specifically, the stone is placed between multiple sets of clamping rollers 210, with rollers 210 positioned above and below both sides of the stone. The rotary motor 301 is then activated, causing its output to rotate the first threaded tube 302. This rotation of the first threaded tube 302, in turn, drives the second threaded tube 306 to rotate via the rotating column 304. The rotation of both the first and second threaded tubes causes linear displacement of the two sets of sleeves 303. This movement of the sleeves 303 causes displacement of the push plate 305, which in turn pushes the installation... When the mounting plate 212 is moved laterally, it will push the fixed shaft 216 to move by moving the placement plate 215. The movement of the fixed shaft 216 will push one side of the swing plate 214. At this time, the swing plate 214 will swing around the central shaft 213. At the same time, the swing plate 214 will push the horizontal plate 201 to move by pulling the central shaft 213. The movement of the horizontal plate 201 will drive the two sets of movable plates 209 to move. The movement of the movable plates 209 will drive the top block 208 to move and push the protrusion 207. The movement of the protrusion 207 will drive the locking rod 210 to move by moving the slider 206, so that the two sets of locking rods 210 move towards each other and clamp the stone.
[0036] Finally, the stone is flipped over. The specific operation is as follows: turn on the rotating motor 8 so that its output end drives the second gear 9 to rotate. The rotation of the second gear 9 will drive the first gear 6 to rotate. The rotation of the first gear 6 will drive the connecting column 7 to rotate, thereby driving the mounting block 4 to rotate. The rotation of the mounting block 4 will drive the horizontal plate 201 to flip, thereby flipping the stone fixed by the clamping roller 210, thus completing the flipping of the stone.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping device for a polishing machine used for stone grinding, characterized in that, include: Base (1); Two sets of support seats (5) are set on one side of the base (1); Rotate the mounting block (4) located inside the support base (5); A clamping assembly (2) is provided on the outside of the mounting block (4). The clamping assembly (2) includes a horizontal plate (201) slidably disposed on the outside of the mounting block (4). Two sets of parallel central shafts (213) are provided inside the horizontal plate (201). A swing plate (214) is rotatably disposed on the outside of the central shafts (213). A fixed shaft (216) is rotatably disposed on the side of the swing plate (214) away from the central shafts (213). The outside of the fixed shaft (216) is fixedly disposed with the mounting plate (212). Two sets of movable plates (209) are provided on one side of the horizontal plate (201). Two sets of sliders (206) are slidably disposed on the outside of the movable plates (209). A protrusion (207) is provided on one side of the sliders (206). Top blocks (208) are provided on both sides of the movable plates (209). A locking rod (210) is provided on the side of the sliders (206) away from the protrusions (207). The drive assembly (3) is set inside the mounting block (4), and one side of the drive assembly (3) is fixedly set to the mounting plate (212).
2. The clamping device for a polishing machine for stone grinding according to claim 1, characterized in that, A connecting column (7) is provided on one side of the mounting block (4). The connecting column (7) is rotatably disposed inside the support base (5). A first gear (6) is provided on the outside of the connecting column (7). A rotating motor (8) is provided inside the support base (5). A second gear (9) is keyed to the output end of the rotating motor (8), and the first gear (6) and the second gear (9) mesh.
3. The clamping device for a polishing machine for stone grinding according to claim 1, characterized in that, The mounting block (4) is provided with two sets of fixing plates (205) on the side near the support base (5). Springs (204) are provided on both sides of the fixing plates (205). The end of the spring (204) away from the fixing plate (205) is fixedly set with the slider (206).
4. The clamping device for a polishing machine for stone grinding according to claim 3, characterized in that, The fixed plate (205) is provided with a limiting plate (202) inside, and the slider (206) is slidably disposed on the outside of the limiting plate (202).
5. The clamping device for a polishing machine for stone grinding according to claim 4, characterized in that, Two sets of buffer pads (203) are provided on the outer side of the limiting plate (202). The buffer pads (203) are rubber buffer pads, and the outer side of the buffer pads (203) is in contact with the outer side of the slider (206).
6. The clamping device for a polishing machine for stone grinding according to claim 1, characterized in that, The top block (208) is a circular top block, and the protrusion (207) is a semi-elliptical protrusion. The thickness of the protrusion (207) is less than the thickness of the top block (208).
7. The clamping device for a polishing machine for stone grinding according to claim 1, characterized in that, The drive assembly (3) includes a rotary motor (301) disposed inside the mounting block (4). The output end of the rotary motor (301) is key-connected to a first threaded tube (302). A rotating column (304) is disposed at the end of the first threaded tube (302) away from the rotary motor (301). A second threaded tube (306) is disposed at the end of the rotating column (304) away from the first threaded tube (302). A sleeve (303) is screwed onto the outer side of both the first threaded tube (302) and the second threaded tube (306). A push plate (305) is disposed on the outer side of the sleeve (303). The side of the push plate (305) away from the sleeve (303) is fixedly disposed with the mounting plate (212).
8. The clamping device for a polishing machine for stone grinding according to claim 2, characterized in that, Two sets of discs are provided on the outer side of the connecting column (7), and the two sets of discs are located on both sides of the support base (5).