Arc angle grinding device for diamond
By designing a scraper and electric push rod cleaning system in the diamond arc angle grinding device, the problem of chip accumulation was solved, achieving automated cleaning and improving processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HESHI DIAMOND CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-21
AI Technical Summary
Existing diamond arc-angle polishing devices generate debris that accumulates inside the device during polishing, making cleaning difficult and reducing processing efficiency.
A device comprising a support, a grinding component, and a scraper is designed. The scraper scrapes the debris at the bottom of the inner cavity and discharges it through the drain hole. Combined with an electric push rod and a cleaning plate, the debris is further cleaned, achieving automated cleaning.
It enables automatic cleaning of debris during the grinding process, reducing the difficulty of cleaning and use, and improving processing efficiency.
Smart Images

Figure CN224144254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing device technology, and in particular to a diamond arc angle polishing device. Background Technology
[0002] Diamonds, as precious gemstones, are widely used in jewelry and other fields due to their unique optical properties and high value. In the diamond processing, the polishing stage is crucial, directly affecting the diamond's appearance, luster, and value. Among these processes, cabochon polishing is a key technique; precise cabochon polishing allows diamonds to display captivating fire and brilliance. However, existing cabochon polishing equipment has some shortcomings. For example, Chinese patent publication number "CN 219337225 U" discloses an arc-angle polishing device for diamond processing, including a base. A tray is fixedly connected to the upper left side of the base via several support rods. A rotating rod is rotatably inserted through the middle of the upper side of the tray. A polishing disc is mounted on the outer surface of the rotating rod via a disassembly assembly. A rotating assembly for driving the rotating rod to rotate is mounted on the upper side of the base. An electric push rod is mounted on the upper right end of the base. A lifting frame is fixedly connected to the output end of the electric push rod. A fan-shaped disk is fixedly connected to the rear side of the lifting frame. A rotating block is rotatably mounted on the front side of the fan-shaped disk via a rotating shaft. A positioning tube is rotatably inserted through the rotating block. A positioning assembly for positioning the angle of the rotating block is mounted on the fan-shaped disk. A rotation assembly for driving the positioning tube to rotate is mounted on the lifting frame. Although this device can polish diamonds, the debris generated during diamond polishing will accumulate inside the device, requiring personnel to clean the debris regularly, increasing the difficulty of using the device and reducing its processing efficiency. Utility Model Content
[0003] This invention proposes a diamond arc-angle grinding device to solve the problem of inconvenient debris removal in existing devices.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a diamond arc angle polishing device, comprising a support member, the top of which is open to form an inner cavity, and a fixing part for fixing a diamond is rotatably connected to one side of the support member, the fixing part forming a fixing cavity for fixing the diamond, and a polishing part for polishing the diamond is rotatably connected to the support member, the polishing part being located inside the inner cavity, and the fixing cavity being located above the polishing part, a scraper for scraping the bottom of the inner cavity being fixedly connected to the circumferential surface of the polishing part, and a drain hole being open at the bottom of the support member, the drain hole communicating with the inner cavity.
[0005] Preferably, a cleaning plate that can move up and down relative to the grinding workpiece is provided on one side of the support member, and an electric push rod is fixedly connected to the outside of the support member. A connecting rod is fixedly connected to the telescopic end of the electric push rod, and one end of the connecting rod is fixedly connected to the cleaning plate.
[0006] Preferably, the support includes a housing, the bottom of which is fixedly connected to a foot for supporting itself, the drain hole is formed at the bottom of the housing, and the electric push rod is fixedly connected to the outside of the housing.
[0007] Preferably, a motor is fixedly connected to the bottom of the housing, and the output end of the motor is connected to the bottom of the grinding part.
[0008] Preferably, the grinding component includes a turntable, a positioning rod is fixedly connected to the top of the turntable, and two positioning holes are symmetrically recessed at the top of the turntable. The positioning rod is located between the two positioning holes, and a movable grinding disc is sleeved on the positioning rod. A detachable threaded ring is screwed onto the positioning rod, and the threaded ring is located above the grinding disc. A positioning head is formed by the outward protrusion of the bottom of the grinding disc, and the positioning head matches the positioning hole.
[0009] Preferably, the fixing part includes a rotating rod, which is rotatably connected to the housing, and a fixing head is rotatably connected to one end of the rotating rod facing the inner cavity. The fixing cavity is formed inside the fixing head, and an air suction pipe is fixedly connected to the outside of the fixing head. Multiple negative pressure holes are formed on the inner wall of the fixing cavity, and the negative pressure holes communicate with the air suction pipe. Multiple rubber rings are adhered to the inner wall of the fixing cavity.
[0010] Preferably, a dripping component is fixedly connected to the top of the housing. The dripping component includes a water storage tank. A drain pipe is fixedly connected to the bottom of the water storage tank. A plug is provided inside the drain pipe, and a gap for water flow is formed between the plug and the inner wall of the drain pipe.
[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0012] (1) By setting scraper and drain hole, when the device grinds diamonds through the grinding parts, the debris is collected through the inner cavity of the housing and the scraper is rotated synchronously through the grinding parts, so that the scraper rotates and scrapes the debris at the bottom of the inner cavity, and the debris is discharged through the drain hole. There is no need for personnel to stop the machine to clean the device, which reduces the cleaning difficulty and use difficulty of the device, and improves the cleaning efficiency and processing efficiency of the device.
[0013] (2) By setting up an electric push rod, a connecting rod and a cleaning plate, when in use, the electric push rod drives the connecting rod to move, which in turn drives the cleaning plate to move until the cleaning plate touches the top of the grinding disc. The cleaning plate scrapes the residual debris on the grinding disc, causing the debris to fall into the inner cavity, thus making it easier to discharge the debris and preventing the debris from remaining on the grinding disc. This further reduces the cleaning difficulty and usage difficulty of the device, and further improves the cleaning efficiency and processing efficiency of the device. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is one of the perspective views of this utility model;
[0016] Figure 2 This is a second perspective view of the present utility model;
[0017] Figure 3 This is one of the perspective views of the present invention with the dripping component removed;
[0018] Figure 4 This is the second perspective view of the present invention with the dripping component removed;
[0019] Figure 5 This is a perspective view of the fastener of this utility model;
[0020] Figure 6 This is one of the perspective views of the grinding part of this utility model;
[0021] Figure 7 This is the second perspective view of the grinding part of this utility model;
[0022] Figure 8 This is a perspective view of the dripping component of this utility model;
[0023] In the diagram: 1. Support component; 11. Housing; 12. Foot; 13. Electric push rod; 14. Connecting rod; 15. Cleaning plate; 16. Fixing part; 161. Rotating rod; 162. Fixing head; 163. Suction pipe; 164. Negative pressure hole; 165. Fixing cavity; 166. Rubber ring; 17. Inner cavity; 18. Drain hole; 2. Grinding component; 21. Grinding disc; 22. Turntable; 23. Scraper; 24. Positioning rod; 25. Positioning hole; 26. Threaded ring; 27. Positioning head; 28. Motor; 3. Drip component; 31. Water storage tank; 32. Plug; 33. Drain pipe. Detailed Implementation
[0024] 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.
[0025] This utility model provides, for example Figures 1-8 The diamond arc-angle polishing device shown includes a support member 1, the top of which is open to form an inner cavity 17, and a fixing part 16 for fixing a diamond is rotatably connected to one side of the support member 1. A fixing cavity 165 for fixing the diamond is formed on the fixing part 16, and a polishing part 2 for polishing the diamond is rotatably connected to the support member 1. The polishing part 2 is located inside the inner cavity 17, and the fixing cavity 165 is located above the polishing part 2. A scraper 23 for scraping the bottom of the inner cavity 17 is fixedly connected to the circumferential surface of the polishing part 2, and a drain hole 18 is open at the bottom of the support member 1, which communicates with the inner cavity 17.
[0026] With the above technical solution, when personnel need to polish diamonds, the diamond to be processed is placed in the fixed cavity 165 on the fixed part 16. The polishing part 2 rotates relative to the support part 1, so that the polishing part 2 polishes the diamond. When the polishing part 2 rotates, it will simultaneously drive the scraper 23 to rotate. When the device produces chips while polishing the diamond, the scraper 23 scrapes the chips at the bottom of the fixed cavity 165 and discharges the chips through the drain hole 18. This allows the device to clean the diamonds simultaneously without the need for manual cleaning later, thus improving the diamond processing efficiency.
[0027] After the device polishes the diamond, in order to further clean the polished surface of polishing part 2, such as... Figures 1-4 As shown, a cleaning plate 15 that can move up and down relative to the grinding part 2 is provided on one side of the support member 1, and an electric push rod 13 is fixedly connected to the outside of the support member 1. A connecting rod 14 is fixedly connected to the telescopic end of the electric push rod 13, and one end of the connecting rod 14 is fixedly connected to the cleaning plate 15.
[0028] In this embodiment, before the polishing part 2 processes the diamond, the electric push rod 13 is operated to move the connecting rod 14. The connecting rod 14 then moves the cleaning plate 15, causing the cleaning plate 15 to contact the top of the polishing part 2. When the polishing part 2 polishes the diamond, the cleaning plate 15 scrapes the polishing part 2, causing the debris on the polishing part 2 to fall to the bottom of the inner cavity 17, making it easier for the debris to be discharged through the drain hole 18, further improving the cleaning efficiency of the debris.
[0029] Specifically, in one embodiment, regarding the aforementioned support member 1, as... Figures 1-3 As shown, the support member 1 includes a housing 11, with a foot 12 fixedly connected to the bottom of the housing 11 for supporting itself, a drain hole 18 formed at the bottom of the housing 11, and an electric push rod 13 fixedly connected to the outside of the housing 11.
[0030] In this embodiment, the base 12 supports the housing 11, and the housing 11 supports the grinding element 2. When the grinding element 2 grinds the diamond, the inner cavity 17 on the housing 11 receives the debris.
[0031] Furthermore, in this utility model, regarding how the grinding part 2 rotates, as follows: Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, a motor 28 is fixedly connected to the bottom of the housing 11, and the output end of the motor 28 is connected to the bottom of the grinding part 2.
[0032] In this embodiment, after the diamond is fixed in the fixing cavity 165, the motor 28 works, thereby driving the grinding component 2 to rotate, and the grinding component 2 can grind the diamond.
[0033] Specifically, in one embodiment, regarding the aforementioned polishing component 2, as... Figures 6-7 As shown, the grinding component 2 includes a turntable 22, a positioning rod 24 is fixedly connected to the top of the turntable 22, and two positioning holes 25 are symmetrically recessed at the top of the turntable 22. The positioning rod 24 is located between the two positioning holes 25, and a movable grinding disc 21 is sleeved on the positioning rod 24. A detachable screw ring 26 is screwed onto the positioning rod 24. The screw ring 26 is located above the grinding disc 21. A positioning head 27 is formed by the outward protrusion of the bottom of the grinding disc 21. The positioning head 27 matches the positioning hole 25.
[0034] In this embodiment, before polishing the diamond, the grinding disc 21 is placed above the turntable 22, and the positioning rod 24 on the turntable 22 passes through the grinding disc 21. The screw ring 26 is then screwed into the positioning rod 24, and the positioning head 27 is inserted into the positioning hole 25 on the turntable 22, thus completing the installation of the grinding disc 21. The motor 28 is then activated to rotate the turntable 22, causing the turntable 22 and the grinding disc 21 to rotate synchronously. The diamond is polished by the grinding disc 21. When the turntable 22 rotates, it also drives the scraper 23 to rotate synchronously, causing the scraper 23 to scrape the debris inside the inner cavity 17 and discharge it through the drain hole 18. When the grinding disc 21 needs to be replaced, the screw ring 26 is unscrewed to remove the grinding disc 21. The intact grinding disc 21 is then placed on the positioning rod 24, and the screw ring 26 is screwed into the positioning rod 24 until the screw ring 26 touches the grinding disc 21, thus completing the replacement of the grinding disc 21.
[0035] Furthermore, in this utility model, regarding the aforementioned fixing portion 16, as... Figures 1-5 As shown, the fixing part 16 includes a rotating rod 161, which is rotatably connected to the housing 11. A fixing head 162 is rotatably connected to one end of the rotating rod 161 facing the inner cavity 17. A fixing cavity 165 is formed inside the fixing head 162, and an air suction pipe 163 is fixedly connected to the outside of the fixing head 162. A plurality of negative pressure holes 164 are formed on the inner wall of the fixing cavity 165. The negative pressure holes 164 communicate with the air suction pipe 163. A plurality of rubber rings 166 are adhered to the inner wall of the fixing cavity 165.
[0036] In this embodiment, when it is necessary to fix the diamond, rotate the rotating rod 161 so that the rotating rod 161 rotates around the housing 11, thereby adjusting the angle of the rotating rod 161. After the angle of the rotating rod 161 is adjusted, pull the fixing head 162 so that the fixing head 162 rotates around the rotating rod 161, thereby adjusting the angle of the fixing head 162. After the angle of the fixing head 162 is adjusted, connect the negative pressure device (not shown in the figure) to the fixing head 162. By working through the negative pressure device, the air inside the fixing head 162 is extracted, so that the negative pressure hole 164 is negatively pressured. Then, the diamond is placed in the fixing cavity 165, thereby completing the fixation of the drill bit. Furthermore, the rubber ring 166 makes the diamond more secure after fixation.
[0037] During the polishing process, the grinding disc 21 will inevitably heat up. To prevent the grinding disc 21 from overheating, such as... Figure 1 , Figure 2 and Figure 8 As shown, a dripping component 3 is fixedly connected to the top of the housing 11. The dripping component 3 includes a water storage tank 31. A drain pipe 33 is fixedly connected to the bottom of the water storage tank 31. A plug 32 is provided inside the drain pipe 33. A gap for water supply is formed between the plug 32 and the inner wall of the drain pipe 33.
[0038] In this embodiment, before the device processes the diamond, water is introduced into the water storage tank 31. The water drips out of the drain pipe 33 through the gap between the plug 32 and the inner wall of the drain pipe 33, so that the water drips onto the grinding disc 21. When the grinding disc 21 grinds the diamond, the water cools the grinding disc 21.
[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A diamond angle lapping device, characterized by: The device includes a support member (1), the top of which is open to form an inner cavity (17), and a fixing part (16) for fixing a diamond is rotatably connected to one side of the support member (1). A fixing cavity (165) for fixing the diamond is formed on the fixing part (16), and a polishing part (2) for polishing the diamond is rotatably connected to the support member (1). The polishing part (2) is located inside the inner cavity (17), and the fixing cavity (165) is located above the polishing part (2). A scraper (23) for scraping the bottom of the inner cavity (17) is fixedly connected to the circumferential surface of the polishing part (2), and a drain hole (18) is open at the bottom of the support member (1) and the drain hole (18) communicates with the inner cavity (17).
2. The diamond angle polishing apparatus of claim 1, wherein: The support member (1) is provided with a cleaning plate (15) that can move up and down relative to the grinding member (2) on one side, and an electric push rod (13) is fixedly connected to the outside of the support member (1). The telescopic end of the electric push rod (13) is fixedly connected to a connecting rod (14), and one end of the connecting rod (14) is fixedly connected to the cleaning plate (15).
3. The diamond arc angle polishing device according to claim 2, characterized in that: The support member (1) includes a housing (11), the bottom of which is fixedly connected to a foot (12) for supporting itself, the drain hole (18) is formed at the bottom of the housing (11), and the electric push rod (13) is fixedly connected to the outside of the housing (11).
4. The diamond angle polishing apparatus of claim 3, wherein: A motor (28) is fixedly connected to the bottom of the housing (11), and the output end of the motor (28) is connected to the bottom of the grinding part (2).
5. A diamond angle lapping device according to claim 3 or 4, wherein: The grinding component (2) includes a turntable (22), a positioning rod (24) is fixedly connected to the top of the turntable (22), and two positioning holes (25) are symmetrically recessed at the top of the turntable (22). The positioning rod (24) is located between the two positioning holes (25), and a movable grinding disc (21) is sleeved on the positioning rod (24). A detachable screw ring (26) is screwed onto the positioning rod (24). The screw ring (26) is located above the grinding disc (21). The bottom of the grinding disc (21) protrudes outward to form a positioning head (27), and the positioning head (27) matches the positioning hole (25).
6. A diamond angle lapping device according to claim 3 or 4, wherein: The fixed part (16) includes a rotating rod (161), which is rotatably connected to the housing (11). A fixed head (162) is rotatably connected to one end of the rotating rod (161) facing the inner cavity (17). The fixed cavity (165) is formed inside the fixed head (162), and an air suction pipe (163) is fixedly connected to the outside of the fixed head (162). Multiple negative pressure holes (164) are formed on the inner wall of the fixed cavity (165). The negative pressure holes (164) communicate with the air suction pipe (163). Multiple rubber rings (166) are bonded to the inner wall of the fixed cavity (165).
7. The diamond angle polishing apparatus of claim 3, wherein: A dripping element (3) is fixedly connected to the top of the housing (11). The dripping element (3) includes a water storage tank (31). A drain pipe (33) is fixedly connected to the bottom of the water storage tank (31). A plug (32) is provided inside the drain pipe (33). A gap for water supply is formed between the plug (32) and the inner wall of the drain pipe (33).
Citation Information
Patent Citations
Arc angle grinding device for diamond machining
CN219337225U