A clamping fixture for diamond cutting

Abstract

This utility model discloses a diamond cutting clamping fixture, comprising: a processing table on which a cutting device for sawing diamonds is mounted; and a clamping mechanism for holding the diamond, positioned directly above the saw blade of the cutting device on the processing table. The clamping mechanism includes a fixed base and chucks. The fixed base has a U-shaped cross-section, with a fixing screw threaded onto the lower ends of both arms. A chuck is attached to one end of each fixing screw, and an adjusting wheel is welded to the other end. A rubber block is provided on one side of the chuck, with a conical groove in the center and anti-slip stripes on the inner wall of the groove. When the two sets of chucks are close together, the diamond is clamped and fixed through the conical groove of the rubber block. The flexibility of the rubber and the design of the conical groove better conform to irregularly shaped or curved diamonds, solving the problem that traditional mechanical clamps are difficult to use for stably clamping irregularly shaped or curved diamonds.

Description

Technical Field

[0001] This utility model relates to the technical field of diamond cutting and processing, specifically a clamping fixture for diamond cutting. Background Technology

[0002] Diamond cutting includes methods such as cleaving, sawing, and laser cutting. In sawing, the saw blade is a phosphor bronze disc with diamond powder coated on the edges. The diamond is fixed on the fixture, and the saw disc rotates at high speed to cut the diamond.

[0003] Traditional mechanical clamps are difficult to use for diamond cutting. Their rigid fixing and clamping methods cannot stably hold irregularly shaped or curved diamonds, easily causing indentations or cracks on the diamond surface, which is detrimental to diamond processing. For example, Chinese patent application number CN202210433475.4 discloses a clamp and cutting machine. The clamp includes: a clamping base; clamping plates movably connected to the clamping base, two clamping plates forming a clamping space for clamping and fixing the workpiece; and a fixing assembly connected to the clamping plates for fixing the clamping plates.

[0004] Therefore, we need to propose a clamping fixture for diamond cutting. Utility Model Content

[0005] The purpose of this invention is to provide a clamping fixture for diamond cutting. The flexibility of the rubber and the design of the conical groove can better fit irregularly shaped or curved diamonds, solving the problem that traditional mechanical clamps are difficult to use for stable clamping of irregularly shaped or curved diamonds, thus addressing the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A diamond cutting clamping fixture includes: A processing table, on which cutting equipment for sawing diamonds is mounted; A clamping mechanism for holding diamonds is positioned directly above the saw blade of the cutting equipment on the processing table. The clamping mechanism includes a fixed base and chucks. The fixed base has a U-shaped cross-section. Fixed screws are threaded onto the lower ends of both arms of the fixed base. A chuck is provided at one end of the fixed screw, and an adjusting wheel is welded to the other end of the fixed screw. A rubber block is provided on one side of the chuck, and a conical groove is provided in the center of the rubber block. Anti-slip stripes are provided on the inner wall of the conical groove. When the two sets of chucks are close together, the diamond is fixedly clamped through the conical groove of the rubber block.

[0007] Preferably, it also includes a support plate, which is disposed on one side of the processing table. The support plate is in the shape of an inverted L. A hydraulic cylinder is installed on the top of the support plate. The hydraulic rod of the hydraulic cylinder passes through the support plate and is fixedly connected to the top of the fixed seat, thereby driving the fixed seat to rise and fall for cutting.

[0008] Preferably, the device also includes guide rods, which are disposed on both sides of the fixed base. The upper end of the fixed base is provided with protruding plates on both sides. The lower end of the guide rod is fixedly connected to the end of the protruding plate. The guide rod is slidably inserted into the top of the support plate, thereby guiding the lifting and lowering of the fixed base.

[0009] Preferably, it further includes a connecting structure for connecting the fixing screw and the chuck, disposed at the end of the fixing screw, the connecting structure including a collar and a fixing screw, the collar and the side wall of the chuck being integrally formed; The collar has symmetrical through holes that connect to the inner cavity of the collar. The through holes allow the fixing screw to pass through. The end of the fixing screw is inserted into the collar. The end of the fixing screw has two sets of screw holes that correspond to the through holes. After the fixing screw passes through the through holes, it is threaded into the screw holes. This allows the chuck and the fixing screw to be disassembled. After the chuck is removed, the fixing screw can be detached from the fixing seat.

[0010] Preferably, it also includes a protective structure for improving the safety of the cutting operation, which is disposed on both sides of the fixed base. The protective structure includes a transparent protective cover, and the top side of the protective cover and the top side of the fixed base are rotatably connected by a hinge. The protective cover has a beveled structure on the side that contacts the fixing seat. The shapes of the two sides of the fixing seat and the protective cover are adapted to each other, so that the fixing seat is inverted triangular in shape when viewed from the front. When the protective cover is rotated 180 degrees and fits against the top surface of the fixing seat, diamonds can be fixed and removed. In normal condition, the protective cover can cover the saw blade as the fixing seat descends, thereby preventing diamond fragments or small particles of cutting tools from flying out due to high-speed movement.

[0011] Preferably, it also includes a laser scribing device for aligning the diamond and the saw blade, which is installed on one side of the processing table. The laser scribing device emits a visible laser beam that is in the same straight line as the saw blade. The operator adjusts the fixed position of the diamond according to the visible beam so that the dividing lines on the diamond are aligned with the saw blade before cutting.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. A rubber block with a conical groove is set on one side of the chuck. The inner wall of the conical groove has anti-slip stripes. The diamond is fixed and clamped by the conical groove of the rubber block through the two sets of chucks. The flexibility of the rubber and the design of the conical groove can better fit the irregular or curved diamond, solving the problem that traditional mechanical clamps are difficult to use for stable clamping of irregular or curved diamonds. 2. The use of rubber blocks avoids the indentation or cracks on the diamond surface caused by rigid fixing and clamping, which helps protect the diamond and improve the processing quality of the diamond. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the support plate of this utility model; Figure 3 This is a schematic diagram of the structure of the fixing base of this utility model; Figure 4 This is a schematic diagram of the structure of the clamp of this utility model.

[0014] In the diagram: 1. Processing table; 2. Support plate; 3. Fixed seat; 4. Hydraulic cylinder; 5. Fixed screw; 6. Adjusting wheel; 7. Chuck; 8. Rubber block; 9. Tapered groove; 10. Anti-slip stripe; 11. Collar; 12. Through hole; 13. Screw hole; 14. Protective cover; 15. Protruding plate; 16. Guide rod; 17. Laser scribing instrument. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 This utility model provides a technical solution: A diamond cutting clamping fixture includes: Processing table 1, on which cutting equipment for sawing diamonds is installed; The clamping mechanism for holding diamonds is located directly above the saw blade of the cutting equipment on the processing table 1. The clamping mechanism includes a fixed base 3 and a chuck 7. The fixed base 3 has a U-shaped cross section. The lower ends of both arms of the fixed base 3 are threaded with fixing screws 5. One end of the fixing screw 5 is provided with a chuck 7, and the other end of the fixing screw 5 is welded with an adjusting wheel 6. A rubber block 8 is provided on one side of the chuck 7. A conical groove 9 is provided in the center of the rubber block 8. Anti-slip stripes 10 are provided on the inner wall of the conical groove 9. When the two sets of chucks 7 are close together, the diamond is fixedly clamped through the conical groove 9 of the rubber block 8.

[0017] Rotating the adjusting wheel 6 can drive the fixing screw 5 to rotate, causing the two sets of chucks 7 to move closer or further apart. The rubber block 8 on one side of the chuck 7 has a conical groove 9 in the center. When the two sets of chucks 7 are close together, the conical groove 9 of the rubber block 8 will generate a clamping force on the diamond. The elastic deformation of the rubber adapts to the shape of the diamond, and the diamond is fixedly clamped in a wrapping manner. The anti-slip stripes 10 on the inner wall of the conical groove 9 increase the friction with the diamond, prevent the diamond from sliding, and achieve fixed clamping. By utilizing the above technical solution and the combination of rubber block 8 and conical groove 9, the problem that traditional rigid clamps cannot adapt to irregular or curved diamonds is solved, avoiding indentations or cracks on the diamond surface and providing a stable and damage-free clamping method for diamond cutting.

[0018] For a preferred embodiment, please refer to Figure 1-2 It also includes a support plate 2, which is set on one side of the processing table 1. The support plate 2 is inverted L-shaped. A hydraulic cylinder 4 is installed on the top of the support plate 2. The hydraulic rod of the hydraulic cylinder 4 passes through the support plate 2 and is fixedly connected to the top of the fixed seat 3, thereby driving the fixed seat 3 to rise and fall for cutting. It also includes guide rods 16, which are set on both sides of the fixed seat 3. The upper ends of the fixed seat 3 are provided with protruding plates 15 on both sides. The lower ends of the guide rods 16 are fixedly connected to the ends of the protruding plates 15. The guide rods 16 are slidably inserted into the top of the support plate 2, thereby guiding the rise and fall of the fixed seat 3.

[0019] When the hydraulic cylinder 4 is working, the hydraulic rod extends and retracts to drive the fixed seat 3 to rise and fall. During the rising and falling of the fixed seat 3, the guide rod 16 slides along the insertion hole at the top of the support plate 2, which plays a guiding role. Through the above technical solution, the hydraulic cylinder 4 provides power to drive the fixed seat 3 to rise and fall, thereby adjusting the distance between the clamping mechanism and the saw blade for cutting operations. The guiding function of the guide rod 16 ensures the stability and accuracy of the rising and falling of the fixed seat 3, preventing the fixed seat 3 from shifting during the rising and falling process, ensuring the precise cutting position of the saw blade and the diamond, and improving cutting accuracy.

[0020] For a preferred embodiment, please refer to [link / reference]. Figure 3-4 It also includes a connecting structure for connecting the fixing screw 5 and the chuck 7, which is set at the end of the fixing screw 5. The connecting structure includes a collar 11 and a fixing screw. The collar 11 and the side wall of the chuck 7 are integrally formed. The collar 11 has symmetrical through holes 12 that communicate with the inner cavity of the collar 11. The through holes 12 allow the fixing screw to pass through. The end of the fixing screw 5 is inserted into the inside of the collar 11. The end of the fixing screw 5 has two sets of screw holes 13 that correspond to the through holes 12. The fixing screw is threaded into the inside of the screw holes 13 after passing through the through holes 12, so that the chuck 7 and the fixing screw 5 can be disassembled. After the chuck 7 is removed, the fixing screw 5 can be detached from the fixing seat 3.

[0021] The connecting structure, located at the end of the fixing screw 5, consists of a collar 11 and a fixing screw. The fixing screw passes through the through hole 12 and is screwed into the screw hole 13, connecting and fixing the chuck 7 to the fixing screw 5. When disassembly is required, the fixing screw is unscrewed, allowing the chuck 7 to detach from the fixing screw 5, and the fixing screw 5 can also be removed from the mounting base 3. This connecting structure enables a detachable connection between the chuck 7 and the fixing screw 5, facilitating the replacement of the appropriate chuck 7 for diamonds of different shapes and sizes, thus improving the versatility and flexibility of the clamping fixture. Furthermore, the disassembled fixing screw 5 is easily detached from the mounting base 3, facilitating equipment maintenance and cleaning.

[0022] For a preferred embodiment, please refer to Figure 1-3 It also includes a protective structure to improve the safety of cutting operations, which is set on both sides of the fixed base 3. The protective structure includes a transparent protective cover 14, the top side of the protective cover 14 and the top side of the fixed base 3 are connected by a hinge. The side of the protective cover 14 that contacts the fixed base 3 has a beveled structure. The shapes of the two sides of the fixed base 3 and the protective cover 14 are adapted to each other, so that the fixed base 3 is inverted triangular in the front. When the protective cover 14 is rotated 180 degrees and fits against the top surface of the fixed base 3, diamonds can be fixed and removed. In normal condition, the protective cover can cover the saw blade as the fixed base 3 descends, thereby preventing diamond fragments or small particles of cutting tools from flying out due to high-speed movement.

[0023] Under normal conditions, the protective cover 14, as it descends with the fixed base 3, encloses the saw blade. When the protective cover 14 is rotated 180 degrees, it fits against the top surface of the fixed base 3, facilitating the fixing and removal of the diamond. The protective structure provides safety during cutting; as it descends with the fixed base 3, it covers the saw blade, effectively preventing diamond fragments and cutting tool particles from flying, thus protecting the operator. When rotated and fitted against the top surface of the fixed base 3, it allows the operator to easily place and remove the diamond, while the transparent protective cover 14 does not obstruct the operator's observation of the cutting process.

[0024] The protective cover 14 can be made of transparent polycarbonate, which has an impact resistance 250-300 times that of ordinary glass. It can effectively block high-speed flying diamond fragments or cutting tool particles to avoid injury to operators. The light transmittance can reach more than 90%, close to that of glass, making it easy for operators to clearly observe the cutting process and ensure processing accuracy. It can withstand a temperature range of -40℃ to 120℃ and is not prone to aging or yellowing due to heat during the cutting process or long-term use, making it suitable for continuous operation in enclosed environments.

[0025] For a preferred embodiment, please refer to Figure 1It also includes a laser scribing device 17 for aligning diamonds and saw blades, which is installed on one side of the processing table 1. The laser scribing device 17 emits a visible laser beam that is in the same straight line as the saw blade. The operator adjusts the fixed position of the diamond according to the visible beam so that the dividing lines on the diamond are aligned with the saw blade before cutting.

[0026] The laser scribing device 17 is installed on one side of the processing table 1, and the emitted visible laser beam is aligned with the saw blade. The operator adjusts the fixed position of the diamond according to the laser beam to align the dicing lines on the diamond with the laser beam, thereby achieving precise alignment between the diamond dicing lines and the saw blade. The laser scribing device 17 provides a precise alignment benchmark for diamond cutting, avoiding the errors of traditional visual alignment, improving the accuracy of the alignment between the diamond dicing lines and the saw blade, ensuring accurate cutting position, and thus improving the quality and yield of diamond cutting.

[0027] In this embodiment, the laser scribing device 17 can be a laser scribing device 17 of model LTA200L-30.

[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A clamping jig for cutting a diamond, characterized by, include: A processing table (1) on which a cutting device for sawing diamonds is installed; The clamping mechanism for holding the diamond is set directly above the saw blade of the cutting equipment on the processing table (1). The clamping mechanism includes a fixed seat (3) and a chuck (7). The fixed seat (3) has a U-shaped cross section. The lower ends of the two arms of the fixed seat (3) are threaded with a fixing screw (5). One end of the fixing screw (5) is provided with a chuck (7). The other end of the fixing screw (5) is welded with an adjusting wheel (6). A rubber block (8) is provided on one side of the chuck (7). A conical groove (9) is provided in the center of the rubber block (8). Anti-slip stripes (10) are provided on the inner wall of the conical groove (9). When the two sets of chucks (7) are close together, the diamond is fixedly clamped through the conical groove (9) of the rubber block (8).

2. A clamping tool for cutting a diamond as claimed in claim 1, wherein: It also includes a support plate (2), which is set on one side of the processing table (1). The support plate (2) is in an inverted L-shape. A hydraulic cylinder (4) is installed on the top of the support plate (2). The hydraulic rod of the hydraulic cylinder (4) passes through the support plate (2) and is fixedly connected to the top of the fixed seat (3) to drive the fixed seat (3) to rise and fall for cutting.

3. A clamping tool for cutting a diamond as defined in claim 2, wherein: It also includes a guide rod (16), which is set on both sides of the fixed seat (3). The upper end of the fixed seat (3) is provided with a protruding plate (15) on both sides. The lower end of the guide rod (16) is fixedly connected to the end of the protruding plate (15). The guide rod (16) is slidably inserted into the top of the support plate (2), thereby guiding the lifting and lowering of the fixed seat (3).

4. The clamping fixture for diamond cutting according to claim 1, characterized in that: It also includes a connection structure for connecting the fixing screw (5) and the chuck (7), which is located at the end of the fixing screw (5). The connection structure includes a collar (11) and a fixing screw. The collar (11) and the chuck (7) are integrally formed on the sidewall. The collar (11) is symmetrically provided with through holes (12) communicating with the inner cavity of the collar (11). The through holes (12) are for the fixing screw to pass through. The end of the fixing screw (5) is inserted into the collar (11), and the end of the fixing screw (5) is symmetrically provided with two sets of screw holes (13) corresponding to the through holes (12). After the fixing screw passes through the through holes (12), it is threaded into the screw holes (13), so that the chuck (7) and the fixing screw (5) can be disassembled, and the fixing screw (5) can be separated from the fixing seat (3) after the chuck (7) is removed.

5. The clamping fixture for diamond cutting according to claim 1, characterized in that: It also includes a protective structure for improving the safety of cutting operations, which is set on both sides of the fixed seat (3). The protective structure includes a transparent protective cover (14), and the top side of the protective cover (14) and the top side of the fixed seat (3) are rotatably connected by a hinge. The protective cover (14) has a beveled structure on the side that contacts the fixing seat (3). The two sides of the fixing seat (3) are adapted to the shape of the protective cover (14), so that the fixing seat (3) is inverted triangular in front. When the protective cover (14) is rotated 180 degrees and fits against the top surface of the fixing seat (3), the diamond can be fixed and removed. Under normal conditions, the protective cover can cover the saw blade as the fixing seat (3) descends, thus preventing diamond fragments or small particles of cutting tools from splashing out due to high-speed movement.

6. The clamping fixture for diamond cutting according to claim 1, characterized in that: It also includes a laser scribing instrument (17) for aligning diamonds and saw blades, which is installed on one side of the processing table (1). The laser scribing instrument (17) emits a visible laser beam that is in the same straight line as the saw blade. The operator adjusts the fixed position of the diamond according to the visible beam so that the dividing line on the diamond is aligned with the saw blade before cutting.

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