A diamond workpiece grinding device and grinding method

Abstract

This invention proposes a grinding device and method for diamond abrasive workpieces, belonging to the technical field of grinding devices. It addresses the problem of uneven grinding caused by debris accumulation during the grinding process of diamond abrasive workpieces, a core bottleneck restricting workpiece processing quality. The device includes a worktable with two supports and a mounting port on top. A placement plate with a central hinged support is located at the mounting port, and the placement plate includes a fixing device and a counterweight. Mounting slots are located at both ends of the mounting port, housing retractable support seats. The worktable also includes a vertical frame (slidingly connected to a crossbeam, with a grinding machine at the bottom of the crossbeam, and the vertical frame equipped with a first drive device to raise and lower the crossbeam) and a water tank (connected to water pipes, nozzles, and a water pump). This invention utilizes the coordinated operation of the supports, placement plate, and nozzles. The supports ensure the placement plate is horizontal for easy workpiece fixation. During grinding, the nozzles spray water to reduce debris and ensure uniform grinding. After grinding, the supports retract, and the placement plate tilts to allow debris to automatically slide off, reducing dust and improving efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of grinding devices, specifically relating to a diamond workpiece grinding device and grinding method. Background Technology

[0002] In the industrial processing field, corundum, due to its high hardness, high wear resistance, and good high-temperature resistance, is widely used to process workpieces of various structures to adapt to different application scenarios. Examples include square corundum grinding blocks (commonly used for stone polishing and rust removal on metal surfaces), rectangular corundum liners (used for wear-resistant protection of the inner walls of crushers, ball mills, and other equipment), and cubic corundum mold accessories (wear-resistant components for high-precision forming molds). After forming, these corundum workpieces typically have burrs, irregular edges and corners, dimensional deviations, and residual forming marks on their surfaces. Without grinding, these defects directly affect subsequent assembly accuracy, operational stability, and workpiece lifespan. Therefore, grinding is a crucial step in the corundum workpiece processing flow. Currently, grinding operations on diamond abrasive workpieces are mostly carried out using equipment such as grinding wheel grinders, belt grinders, or handheld grinding tools. However, due to the extremely high hardness of diamond abrasive, a large amount of fine diamond abrasive debris and grinding tool wear debris are generated during the grinding process. These debris have the following prominent problems: First, the debris tends to accumulate in the grinding area, preventing the grinding tool from making sufficient contact with the workpiece surface. This not only causes uneven grinding (such as localized dents, scratches, or unpolished dead corners), but also exacerbates abnormal wear on the grinding tools, shortens tool life, and increases processing costs. Summary of the Invention In view of this, the present invention provides a diamond workpiece grinding device and grinding method to solve the problem in the prior art that during the diamond workpiece grinding process, debris easily accumulates in the grinding area, resulting in insufficient contact between the grinding tool and the workpiece surface, which not only causes uneven grinding, but also aggravates abnormal wear of the grinding tool, shortens the tool's service life and increases processing costs.

[0003] The technical solution adopted in this invention is as follows: A diamond workpiece grinding device includes a worktable with two supports spaced apart along its length on the top. A mounting opening is also provided through the top of the worktable between the two supports. A placement plate is provided at the mounting opening, with its two ends hinged to the two supports respectively. A fixing device is provided on the top of the placement plate, and a counterweight is provided at one end of the placement plate, causing one end of the placement plate to tilt downwards. Mounting grooves are provided at both ends along the length of the mounting opening, and support seats are provided within the mounting grooves. One end of the support extends outside the mounting groove, and the top of the support contacts the bottom of the placement plate to prevent the placement plate from tilting. The support can be retracted into the mounting groove or extended outside the mounting groove. The top of the workbench is also provided with a vertical frame, on which a crossbeam is slidably connected. A grinder is provided at the bottom of the crossbeam. The vertical frame is also provided with a first drive device for driving the crossbeam to rise and fall. The top of the workbench is also provided with a water tank, on which a water pipe is connected. A nozzle is connected to the water pipe and faces the placement plate. A water pump is also provided on the water pipe.

[0004] In this technical solution, it should be noted that the workbench is the basic support carrier of the entire device, bearing all components and ensuring stable installation; two supports provide rotation fulcrums for the placement plate, allowing the placement plate to tilt around the fulcrums; the mounting port reserves installation space for the placement plate, defining its position; the placement plate is the workpiece bearing platform, with a hinged support in the middle enabling tilting, a top fixing device securing the workpiece, and a counterweight at one end using gravity to naturally tilt that end of the placement plate downwards; the mounting groove provides storage and movement space for the support seat, which, when extended, presses against the bottom of the placement plate to prevent tilting, and when retracted, releases the tilting space of the placement plate; the vertical frame provides a sliding track for the crossbeam, which carries the grinding machine, and the first drive device drives the crossbeam to rise and fall, adjusting the distance between the grinding machine and the workpiece; the water tank stores water, the water pipe transports water, the nozzle sprays water towards the grinding area, and the water pump provides power for the water flow. Working Principle: In the initial state, one end of the support base extends out of the mounting slot, and its top is in close contact with the bottom of the placement plate near the counterweight. The upward supporting force counteracts the downward gravity of the counterweight, keeping the placement plate horizontal. The operator places the diamond workpiece to be ground (such as a square grinding block or rectangular liner) steadily in the middle area of ​​the top of the placement plate and operates the fixing device on the placement plate to clamp and fix the workpiece to prevent displacement during subsequent grinding. The first drive device is activated, and the device outputs power to drive the crossbeam to move slowly downward along the sliding track of the vertical frame. The grinder at the bottom of the crossbeam descends synchronously with the crossbeam, gradually approaching the surface of the workpiece. At the same time, the water pump is activated, and the water in the water tank is delivered to each nozzle through the water pipe under the pressure of the water pump. The nozzles will... Water is sprayed in mist or column form onto the workpiece on the placement plate and the grinding head area of ​​the grinder. When the grinding head of the grinder contacts the workpiece surface and reaches the preset pressure, the grinder starts and begins grinding the workpiece surface. During the grinding process, the nozzles continuously spray water. After grinding is completed, the grinder is turned off first, and then the first drive device is controlled to run in reverse, driving the crossbeam to move upward along the vertical frame. The grinder moves away from the workpiece synchronously with the crossbeam. At the same time, the water pump is turned off, and the nozzles stop spraying water. Then, the support base is retracted into the mounting groove by external force. The top of the support base disengages from the bottom of the placement plate. Under the gravity of the counterweight, the placement plate tilts downward around the central support. The grinding debris attached to the workpiece surface slides off the tilted surface of the placement plate, completing the debris cleaning. In this solution, the retractable design of the support base, the hinged arrangement of the placement plate and the counterweight, and the water spray structure of the nozzles create a synergistic effect. The support base ensures that the placement plate is horizontal when the workpiece is placed, facilitating workpiece fixation. During grinding, the water spray from the nozzles reduces debris accumulation, prevents insufficient contact between the grinding tool and the workpiece, and ensures uniform grinding. After grinding, the support base retracts, and the tilting of the placement plate causes the debris to slide off automatically, eliminating the need for manual cleaning. This not only solves the problem of uneven grinding caused by debris in traditional grinding but also improves operational efficiency. At the same time, the water spray also reduces dust and improves the working environment.

[0005] Preferably, the support base is connected to the mounting groove via a first spring.

[0006] In this technical solution, it should be noted that the first spring connects the support base and the inner wall of the mounting groove, providing a restoring elastic force for the support base and also acting as a buffer when the support base moves.

[0007] Preferably, the top of the workbench is provided with a limiting opening that communicates with the mounting groove; the top of the support base is provided with a groove, a limiting block is slidably embedded in the groove, the bottom of the limiting block is connected to the groove through a second spring, the top of the limiting block extends out of the groove, and the limiting block cooperates with the limiting opening.

[0008] In this technical solution, it should be noted that the limiting opening is a positioning slot for the limiting block. The groove accommodates the limiting block and the second spring. The limiting block can slide within the groove, and when its top extends, it engages with the limiting opening. The second spring provides an upward elastic force to the limiting block, maintaining its extension tendency. Initially, the limiting block is located within the mounting groove along with part of the support base structure and is constrained by the inner wall of the mounting groove. Working principle: In the initial state, one end of the support base extends out of the mounting groove, and the limiting block, along with the non-extended part of the support base, is located within the mounting groove. The inner wall of the mounting groove applies continuous pressure to the top of the limiting block, causing the limiting block to overcome the elastic force of the second spring and fully retract into the groove of the support base. At this time, the second spring is in a compressed state. When the support base moves into the mounting groove under external force, the limiting block moves synchronously into the depth of the mounting groove along with the support base, maintaining its retracted state throughout the process under the pressure of the inner wall of the mounting groove. When the support base moves until the groove is completely aligned vertically with the limiting opening of the worktable, the top of the limiting block disengages from the constraint of the inner wall of the mounting groove, and the inner wall of the mounting groove exerts continuous pressure on the limiting block. When the pressure on the limiting block disappears, the second spring releases its compressed elastic potential energy, pushing the limiting block upwards. The top of the limiting block extends out of the groove and embeds into the limiting opening. Through the locking structure between the limiting block and the limiting opening, the support seat is fixed in the mounting groove, preventing accidental movement. When it is necessary to release the support seat, the worker presses down on the top of the limiting block with their hand or a tool. The limiting block overcomes the elastic force of the second spring and slides into the groove, disengaging from the limiting opening. Under the restoring force of the first spring, the support seat extends out of the mounting groove. The limiting block moves with the support seat and re-enters the mounting groove, where it is pressed back into the groove by the inner wall, restoring its initial state. This solution, through the combination of the limiting block, the second spring, and the limiting opening, combined with the initial constraint of the mounting groove on the limiting block, achieves stable locking of the support seat after retraction, preventing the tilt of the placement plate from being affected after the workpiece is ground.

[0009] Preferably, the top of the workbench is also provided with a receiving groove communicating with the mounting port, and the receiving groove is provided with sliding grooves on both sides, the sliding grooves extending into the mounting port; a support platform is provided in the receiving groove, the top of the support platform is flush with the bottom of the placement plate, and sliders are provided at both ends of the support platform, the sliders being slidably embedded in the sliding grooves.

[0010] In this technical solution, it should be noted that the receiving groove houses the support platform, preventing it from occupying the installation opening space when idle; the slide provides a sliding track for the slider, limiting the direction of movement of the support platform; when the support platform moves to below the placement plate, it provides support for the placement plate; the slider reduces the friction when the support platform moves, ensuring smooth movement. Working principle: In the initial state, the support platform is located inside the receiving groove, and the sliders at both ends of the support platform are respectively embedded in the sliding grooves on both sides of the receiving groove. The sliders and sliding grooves fit tightly but without jamming. When grinding is required, the external drive structure applies a horizontal thrust to the support platform, and the support platform drives the sliders to slide along the sliding groove towards the mounting opening. As the support platform moves, the end away from the receiving groove gradually enters the area below the mounting opening until the entire support platform moves completely under the placement plate. At this time, the top of the support platform is in close contact with the bottom of the placement plate, forming surface support. During the grinding process, the support platform bears the downward pressure applied by the placement plate, the workpiece, and the grinding machine, keeping the placement plate horizontal and stable. After grinding is completed, the drive structure applies a reverse pulling or pushing force to the support platform, and the support platform drives the sliders to slide along the sliding groove towards the receiving groove, gradually exiting the mounting opening area until the support platform completely returns to the receiving groove, the sliders return to the receiving groove section of the sliding groove, and the space below the mounting opening is released. Effects: This design provides additional support for the placement plate during grinding through the cooperation of the support platform, slide, and slider, preventing deformation of the placement plate caused by the pressure of the grinding machine. It complements the hinge structure of the placement plate and the support function of the support base, ensuring the stability of the placement plate during grinding and further improving the uniformity of grinding. At the same time, the design of the receiving groove makes the support platform easy to store, making the device structure more compact and the overall space utilization rate higher.

[0011] Preferably, the end of the support base facing the support platform is provided with a guide surface, and the guide surface is inclined.

[0012] In this technical solution, it should be noted that the guide surface is the inclined contact surface of the support base facing the support platform, which converts the horizontal movement force of the support platform into a vertical downward force of the support base, guiding the support base to retract. Initially, the support extends out of the mounting slot, with the guide surface facing the receiving slot. The higher end of the inclined surface is close to the top of the support, and the lower end is close to the bottom of the support. When the support platform moves along the slide towards the mounting opening under the action of the drive structure, the end of the support platform near the support first contacts the lower end of the guide surface of the support. As the support platform continues to move horizontally towards the mounting opening, the end of the support platform applies a horizontal thrust to the guide surface. Since the guide surface is inclined, this horizontal thrust is decomposed into two components along the guide surface: one component along the inclined direction of the guide surface, and the other component towards the mounting slot. The component forces push the support against the elastic force of the first spring and move into the mounting slot, and the support gradually retracts into the mounting slot. The support platform continues to move, and its end slides along the guide surface from the lower end to the higher end, continuously applying a thrust to the guide surface until the support is completely retracted into the mounting slot. At this time, the end of the support platform disengages from the guide surface and can continue to move into the mounting opening until it reaches the support position below the placement plate. Results: This solution, through the design of the inclined guide surface, eliminates the need for an additional drive structure. It enables the automatic retraction of the support base by moving the support platform, and is linked with the movement function of the support platform and the extension function of the support base. This simplifies the control structure of the device, avoids hard collisions between the support platform and the support base, and reduces wear. At the same time, it ensures that the support base retracts in a timely manner without obstructing the movement of the support platform, ensuring that the support platform can smoothly enter position for support before grinding, making the overall process more seamless.

[0013] Preferably, the first driving device includes a motor and a lead screw. The two ends of the lead screw are rotatably connected to the vertical frame. The motor is located on the top of the vertical frame, and the output end of the motor is fixedly connected to one end of the lead screw. The crossbeam is slidably connected to the vertical frame, and the crossbeam is threadedly connected to the lead screw. A rotating shaft is also rotatably connected to the top of the worktable. The rotating shaft is parallel to the lead screw, and the rotating shaft and the lead screw are connected by a transmission belt. A gear is fixedly sleeved on the rotating shaft, and a rack that meshes with the gear is provided on one side of the support platform.

[0014] In this technical solution, it should be noted that the motor provides power, and the lead screw converts the motor's rotational motion into the lifting motion of the crossbeam; the transmission belt transmits the power of the lead screw to the rotating shaft, causing the rotating shaft to rotate synchronously; the gear and rack cooperate to convert the rotational motion of the rotating shaft into the horizontal movement of the support table. Working principle: Before grinding, the motor is started, and the motor output shaft rotates forward, driving the lead screw, which is fixedly connected to it, to rotate synchronously; because the crossbeam and the vertical frame are slidably connected, when the lead screw rotates, the crossbeam moves slowly downwards along the sliding track of the vertical frame under the action of the threaded engagement, and the grinder at the bottom of the crossbeam descends synchronously with the crossbeam, gradually approaching the workpiece; simultaneously, when the lead screw rotates, it drives the transmission wheel at one end of the rotating shaft to rotate synchronously through the transmission belt, causing the rotating shaft to rotate with the lead screw; the gear fixedly sleeved on the rotating shaft rotates synchronously with the rotating shaft, and because the gear meshes with the rack on one side of the support table, the rotation of the gear generates a horizontal thrust on the rack, pushing the support table along the sliding groove. The machine moves towards the mounting port. By adjusting the transmission ratio between the lead screw and the rotating shaft, the number of gear teeth, and the rack tooth pitch, the descent speed of the crossbeam and the moving speed of the support platform can be matched. When the grinding head of the grinder contacts the workpiece surface, the support platform has just moved completely under the placement plate, forming support. After grinding, the motor output shaft is reversed, the lead screw rotates synchronously, and the crossbeam moves upward along the vertical frame under the action of the threaded engagement, moving the grinder away from the workpiece. At the same time, the lead screw drives the rotating shaft to rotate through the transmission belt, and the gear rotation generates a reverse pulling force on the rack, pulling the support platform along the slide groove towards the receiving groove until both the crossbeam and the support platform are reset to their initial positions. Effect: This design achieves synchronous control of the grinding machine's lifting and lowering and the support platform's movement through the linkage of the motor, lead screw, transmission belt, gear, and rack, eliminating the need for a separate drive device for the support platform; reducing costs; ensuring that the support platform is in place to support the workpiece when the grinder contacts it, preventing deformation of the placement plate; and working in synergy with the support function of the support platform and the grinding function of the grinder.

[0015] Preferably, the top of the placement plate is provided with a vertical plate, the top of the vertical plate is provided with a horizontal plate, the fixing device includes a screw, the screw is threadedly connected to the horizontal plate, and a pressure plate is fixedly connected to the bottom of the horizontal plate.

[0016] In this technical solution, it should be noted that the vertical plate and the horizontal plate form a fixed support to support the screw; the screw adjusts its up and down position by rotation, which drives the pressure plate to move; the pressure plate contacts the workpiece to fix the workpiece. Preferably, the bottom of the pressure plate is provided with an anti-slip pad.

[0017] In this technical solution, it should be noted that the anti-slip pad is an elastic structure at the bottom of the pressure plate, which increases the friction with the workpiece surface and at the same time buffers the pressure of the pressure plate on the workpiece. Preferably, a water tank is provided below the workbench, and the water tank is located below the installation port.

[0018] In this technical solution, it should be noted that the water tank is located below the workbench, directly opposite the installation port, to collect wastewater and debris generated during grinding.

[0019] A method for grinding diamond workpieces, comprising: Step S1: Place the diamond workpiece to be polished stably in the middle area of ​​the top of the placement plate, and clamp and fix the workpiece using the fixing device; Step S2: Start the first drive device to drive the crossbeam to move slowly downward along the sliding track of the vertical frame. The grinder at the bottom of the crossbeam descends synchronously with the crossbeam and gradually approaches the surface of the workpiece. As the crossbeam lowers the grinder, the water pump is started. Under the pressure of the water pump, the water in the water tank is transported to each nozzle through the water pipe. The nozzle sprays the water in the form of mist or column onto the workpiece on the placement plate and the grinding head area of ​​the grinder. When the grinding head of the grinder contacts the workpiece surface and reaches the preset pressure, the grinder is started to begin grinding the workpiece surface. Step S3: After the grinding operation is completed, first turn off the grinding machine; then control the first drive device to run in reverse, driving the crossbeam to move upward along the vertical frame, and the grinding machine moves away from the workpiece synchronously with the crossbeam, returning to the initial height; at the same time, turn off the water pump, the nozzle stops spraying water, and the equipment reset is completed; Step S4: The support base is retracted into the mounting slot by external force, the top of the support base is no longer in contact with the bottom of the placement plate, and the placement plate tilts downward around the support in the middle under the gravity of the counterweight; the grinding debris attached to the surface of the workpiece slides off naturally with the tilted surface of the placement plate, completing the debris cleaning.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, the retractable design of the support base, the hinged arrangement of the placement plate and the counterweight, and the water spray structure of the nozzle create a synergistic effect: the support base ensures that the placement plate is horizontal when the workpiece is placed, facilitating workpiece fixation; during grinding, the water spray from the nozzle reduces debris accumulation, prevents insufficient contact between the grinding tool and the workpiece, and ensures uniform grinding; after grinding, the support base retracts, and the tilting of the placement plate causes the debris to slide off automatically, eliminating the need for manual cleaning. This solves the problem of uneven grinding caused by debris in traditional grinding, improves operational efficiency, and the water spray also reduces dust and improves the working environment. 2. In this invention, the support platform, along with the slide and slider, provides additional support for the placement plate during grinding, preventing deformation of the placement plate due to the pressure of the grinding machine. This complements the hinge structure of the placement plate and the support function of the support base, ensuring the stability of the placement plate during grinding and further improving the uniformity of grinding. At the same time, the design of the receiving groove makes the support platform easy to store, making the device structure more compact and the overall space utilization rate higher. 3. In this invention, the synchronous control of the lifting of the grinding machine and the movement of the support table is achieved through the linkage of the motor, lead screw, transmission belt, gear, and rack, eliminating the need for a separate drive device for the support table; reducing costs, ensuring that the support table is in place to support the workpiece when the grinding machine contacts it, avoiding deformation of the placement plate, and working in synergy with the support function of the support table and the grinding function of the grinding machine. Attached Figure Description

[0021] The present invention will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a frontal three-dimensional structural diagram of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the worktable of the present invention; Figure 4 for Figure 3 A top-view structural diagram; Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure after cutting along AA; Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure after the plate is cut and tilted; Figure 7 for Figure 5 A skeletal view of the three-dimensional structure without a placement plate; Figure 8 This is a three-dimensional structural diagram of the gear and support platform of the present invention; Figure 9 This is a three-dimensional structural diagram of the workbench and support base after cutting according to the present invention; Figure 10 for Figure 9 A cross-sectional three-dimensional structural diagram; Figure 11 This is a three-dimensional structural diagram of the water tank of the present invention; Wherein: 100-Workbench, 101-Receiving groove, 102-Installation port, 103-Slide groove, 104-Limiting port, 105-Installation groove, 106-First spring, 200-Placement plate, 201-Counterweight block, 202-Vertical plate, 203-Horizontal plate, 204-Screw, 205-Pressure plate, 206-Support, 300-Water tank, 301-Water pump, 302-Water pipe, 303-Nozzle, 400-Support platform, 401-Rack, 402-Slider, 500-Vertical frame, 501-Lead screw, 502-Motor, 503-Transmission belt, 504-Rotating shaft, 505-Gear, 600-Crossbeam, 601-Grinding machine, 700-Water tank, 800-Support base, 801-Guide surface, 802-Groove, 803-Second spring, 804-Limiting block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0028] Example 1 like Figures 1-11As shown in the figure, an embodiment of the present invention discloses a diamond workpiece grinding device, including a worktable 100. Two supports 206 are spaced apart along the length of the top of the worktable 100. An installation opening 102 is also provided through the top of the worktable 100, located between the two supports 206. A placement plate 200 is provided at the installation opening 102. The two ends of the middle portion of the placement plate 200 are respectively hinged to the two supports 206. A fixing device is provided at the top of the placement plate 200. A counterweight 201 is provided at one end of the placement plate 200, causing one end of the placement plate 200 to tilt downwards. Installation grooves 105 are provided at both ends along the length of the installation opening 102. A support seat 800 is provided within the installation groove 105. One end of the support 800 extends outside the mounting groove 105, and the top of the support 800 contacts the bottom of the placement plate 200 to prevent the placement plate 200 from tilting. The support 800 can be retracted into the mounting groove 105 or extended outside the mounting groove 105. The top of the workbench 100 is also provided with a vertical frame 500, on which a crossbeam 600 is slidably connected. A grinder 601 is provided at the bottom of the crossbeam 600. The vertical frame 500 is also provided with a first driving device for driving the crossbeam 600 to rise and fall. The top of the workbench 100 is also provided with a water tank 300, on which a water pipe 302 is connected. A nozzle 303 is connected to the water pipe 302, and the nozzle 303 faces the placement plate 200. A water pump 301 is also provided on the water pipe 302. It should be noted that the workbench 100 is the basic support carrier of the entire device, bearing all components and ensuring stable installation; the two supports 206 provide rotation fulcrums for the placement plate 200, allowing the placement plate 200 to tilt around the fulcrums; the mounting opening 102 reserves installation space for the placement plate 200, defining its position; the placement plate 200 is the workpiece bearing platform, with the central hinged support 206 enabling tilting, the top fixing device securing the workpiece, and a counterweight 201 at one end causing that end of the placement plate 200 to tilt naturally downwards using gravity; the mounting groove... 105 provides storage and movement space for the support base 800. When the support base 800 extends, it presses against the bottom of the placement plate 200 to prevent it from tilting. When it retracts, it releases the tilting space of the placement plate 200. The vertical frame 500 provides a sliding track for the crossbeam 600. The crossbeam 600 carries the grinder 601. The first drive device drives the crossbeam 600 to rise and fall, adjusting the distance between the grinder 601 and the workpiece. The water tank 300 stores water, the water pipe 302 transports water, the nozzle 303 sprays water towards the grinding area, and the water pump 301 provides power for the water flow.Working principle: In the initial state, one end of the support base 800 extends out of the mounting groove 105, and its top is in close contact with the bottom of the placement plate 200 near the counterweight 201. The upward supporting force counteracts the downward gravity of the counterweight 201, keeping the placement plate 200 horizontal. The operator places the diamond workpiece to be ground (such as a square grinding block or rectangular liner) stably in the middle area of ​​the top of the placement plate 200 and operates the fixing device on the placement plate 200 to clamp and fix the workpiece to prevent displacement during subsequent grinding. The first drive device is started, and the device outputs power to drive the crossbeam 600 to move slowly downward along the sliding track of the vertical frame 500. The grinding machine 601 at the bottom of the crossbeam 600 descends synchronously with the crossbeam 600, gradually approaching the surface of the workpiece. At the same time, the water pump 301 is started. The water in the water tank 300 is transported to each nozzle 303 through the water pipe 302 under the pressure of the water pump 301. The nozzles 303 spray the water... The water is sprayed in a mist or columnar form onto the workpiece on the placement plate 200 and the grinding head area of ​​the grinder 601. When the grinding head of the grinder 601 contacts the workpiece surface and reaches the preset pressure, the grinder 601 starts and begins to grind the workpiece surface. During the grinding process, the nozzle 303 continuously sprays water. After grinding is completed, the grinder 601 is turned off first, and then the first drive device is controlled to run in reverse, driving the crossbeam 600 to move upward along the vertical frame 500. The grinder 601 moves away from the workpiece synchronously with the crossbeam 600. At the same time, the water pump 301 is turned off, and the nozzle 303 stops spraying water. Then, the support 800 is retracted into the mounting groove 105 by external force. The top of the support 800 is disengaged from the bottom of the placement plate 200. Under the gravity of the counterweight 201, the placement plate 200 tilts downward around the central support 206. The grinding debris attached to the workpiece surface slides off the tilted surface of the placement plate 200, completing the debris cleaning. In this solution, the retractable design of the support base 800, the hinged combination of the placement plate 200 and the counterweight 201, and the water spraying structure of the nozzle 303 create a synergistic effect. The support base 800 ensures that the placement plate 200 is horizontal when the workpiece is placed, facilitating workpiece fixation. During grinding, the water spraying from the nozzle 303 reduces debris accumulation, prevents insufficient contact between the grinding tool and the workpiece, and ensures uniform grinding. After grinding, the support base 800 retracts, and the tilting of the placement plate 200 causes the debris to slide off automatically, eliminating the need for manual cleaning. This not only solves the problem of uneven grinding caused by debris in traditional grinding but also improves operational efficiency. At the same time, the water spraying also reduces dust and improves the working environment.

[0029] like Figures 9-10 As shown, in this embodiment, the support base 800 is connected to the mounting groove 105 via a first spring 106. It should be noted that the first spring 106 connects the support base 800 to the inner wall of the mounting groove 105, providing a restoring force for the support base 800 and also acting as a buffer when the support base 800 moves.

[0030] like Figures 9-10As shown, in this embodiment, the top of the workbench 100 is provided with a limiting opening 104 communicating with the mounting groove 105; the top of the support base 800 is provided with a groove 802, in which a limiting block 804 is slidably embedded; the bottom of the limiting block 804 is connected to the groove 802 by a second spring 803; the top of the limiting block 804 extends outside the groove 802; and the limiting block 804 cooperates with the limiting opening 104. It should be noted that the limiting opening 104 is a positioning slot for the limiting block 804; the groove 802 accommodates the limiting block 804 and the second spring 803; the limiting block 804 can slide within the groove 802; when its top extends out, it engages with the limiting opening 104; the second spring 803 provides an upward elastic force to the limiting block 804, maintaining its extension tendency; initially, the limiting block 804, along with part of the support base 800 structure, is located within the mounting groove 105 and is constrained by the inner wall of the mounting groove 105. Working principle: In the initial state, one end of the support base 800 extends out of the mounting groove 105, and the limiting block 804, along with the non-extended part of the support base 800, is located inside the mounting groove 105. The inner wall of the mounting groove 105 applies continuous pressure to the top of the limiting block 804, causing the limiting block 804 to overcome the elastic force of the second spring 803 and fully retract into the groove 802 of the support base 800. At this time, the second spring 803 is in a compressed state. When the support base 800 moves into the mounting groove 105 under external force, the limiting block 804 moves synchronously into the depth of the mounting groove 105 along with the support base 800, and is kept in a retracted state by the pressure of the inner wall of the mounting groove 105 throughout the process. When the support base 800 moves to the point where the groove 802 is completely aligned vertically with the limiting opening 104 of the worktable 100, the top of the limiting block 804 is released from the constraint of the inner wall of the mounting groove 105, and the inner wall of the mounting groove 105 exerts continuous pressure on the top of the limiting block 804. When the pressure on the limiting block 804 disappears, the second spring 803 releases its compressed elastic potential energy, pushing the limiting block 804 to slide upward. The top of the limiting block 804 extends out of the groove 802 and embeds into the limiting port 104. Through the engaging structure between the limiting block 804 and the limiting port 104, the support seat 800 is fixed in the mounting groove 105, preventing the support seat 800 from moving accidentally. When it is necessary to release the support seat 800, the operator presses down on the top of the limiting block 804 with their hand or a tool. The limiting block 804 overcomes the elastic force of the second spring 803 and slides into the groove 802. The top of the limiting block 804 disengages from the limiting port 104. Under the restoring force of the first spring 106, the support seat 800 extends out of the mounting groove 105. The limiting block 804 moves with the support seat 805 and re-enters the mounting groove 105, where it is pressed back into the groove 802 by the inner wall of the mounting groove 105, restoring the initial state. This solution combines the limiting block 804, the second spring 803, and the limiting port 104, along with the initial constraint of the limiting block 804 by the mounting groove 105, to achieve stable locking of the support seat 800 after it is retracted, thus preventing the workpiece from being ground and affecting the tilt state of the placement plate 200.

[0031] like Figure 7 , Figure 8As shown, in this embodiment, the top of the workbench 100 is also provided with a receiving groove 101 communicating with the mounting port 102. Sliding grooves 103 are provided on both sides of the receiving groove 101, extending into the mounting port 102. A support platform 400 is provided within the receiving groove 101. The top of the support platform 400 is flush with the bottom of the placement plate 200. Slider blocks 402 are provided at both ends of the support platform 400, and the sliders 402 are slidably embedded in the sliding grooves 103. It should be noted that the receiving groove 101 accommodates the support platform 400, preventing it from occupying space in the mounting port 102 when idle; the sliding grooves 103 provide a sliding track for the sliders 402, limiting the direction of movement of the support platform 400; when the support platform 400 moves below the placement plate 200, it provides support for the placement plate 200; the sliders 402 reduce friction when the support platform 400 moves, ensuring smooth movement. Working principle: In the initial state, the support platform 400 is located entirely within the receiving groove 101. The sliders 402 at both ends of the support platform 400 are respectively embedded in the sliding grooves 103 on both sides of the receiving groove 101. The sliders 402 and the sliding grooves 103 are tightly fitted without jamming. When grinding is required, the external drive structure applies a horizontal thrust to the support platform 400, which drives the sliders 402 to slide along the sliding grooves 103 towards the mounting opening 102. As the support platform 400 moves, the end away from the receiving groove 101 gradually enters the area below the mounting opening 102 until the entire support platform 400 is completely moved below the placement plate 200. At this time, the top of the support platform 400 is in close contact with the bottom of the placement plate 200, forming a surface support. During the grinding process, the support platform 400 bears the downward pressure applied by the placement plate 200, the workpiece, and the grinding machine 601, keeping the placement plate 200 horizontal and stable. After the grinding is completed, the drive structure applies a reverse pulling or pushing force to the support platform 400. The support platform 400 drives the slider 402 to slide along the slide groove 103 towards the receiving groove 101, gradually exiting the installation port 102 area until the support platform 400 completely returns to the receiving groove 101. The slider 402 resets to the receiving groove 101 section of the slide groove 103, releasing the space below the installation port 102. Effects: This design, through the cooperation of the support platform 400, the slide groove 103, and the slider 402, provides additional support for the placement plate 200 during grinding, preventing the placement plate 200 from deforming due to the pressure of the grinder 601. This complements the hinge structure of the placement plate 200 and the supporting function of the support base 800, ensuring the stability of the placement plate 200 during grinding and further improving the uniformity of grinding. At the same time, the design of the receiving groove 101 makes the support platform 400 easy to store, making the device structure more compact and the overall space utilization rate higher.

[0032] like Figures 1-9As shown, in this embodiment, the support base 800 has a guide surface 801 at one end facing the support platform 400, and the guide surface 801 is inclined. It should be noted that the guide surface 801 is the inclined contact surface of the support base 800 facing the support platform 400, which converts the horizontal movement force of the support platform 400 into a vertical downward force of the support base 800, guiding the support base 800 to retract. Initially, the support base 800 extends out of the mounting groove 105, with the guide surface 801 facing the receiving groove 101. The high end of the inclined surface is close to the top of the support base 800, and the low end is close to the bottom of the support base 800. When the support platform 400 moves along the slide groove 103 towards the mounting opening 102 under the action of the driving structure, the end of the support platform 400 near the support base 800 first contacts the low end of the guide surface 801 of the support base 800. As the support platform 400 continues to move horizontally towards the mounting opening 102, the end of the support platform 400 applies a horizontal thrust to the guide surface 801. Since the guide surface 801 is inclined, this horizontal thrust travels along the guide surface 801. 01 is decomposed into two components: one component along the inclined direction of the guide surface 801, and the other component towards the mounting groove 105; the component forces push the support base 800 to overcome the elastic force of the first spring 106 and move into the mounting groove 105, and the support base 800 gradually retracts into the mounting groove 105; the support platform 400 continues to move, and its end slides along the guide surface 801 from the lower end to the higher end, continuously applying a pushing force to the guide surface 801 until the support base 800 is completely retracted into the mounting groove 105. At this time, the end of the support platform 400 disengages from the guide surface 801 and can continue to move into the mounting opening 102 until it reaches the support position below the placement plate 200. Effects: This solution, through the design of the inclined guide surface 801, eliminates the need for an additional drive structure. The support base 800 can automatically retract by moving the support platform 400, which is linked to the movement function of the support platform 400 and the extension function of the support base 800. This simplifies the control structure of the device, avoids hard collisions between the support platform 400 and the support base 800, and reduces wear. At the same time, it ensures that the support base 800 retracts in a timely manner without obstructing the movement of the support platform 400, ensuring that the support platform 400 can smoothly reach its position for support before grinding, making the overall process more seamless.

[0033] like Figure 5 , Figure 7 and Figure 8As shown, in this embodiment, the first driving device includes a motor 502 and a lead screw 501. The two ends of the lead screw 501 are rotatably connected to the vertical frame 500. The motor 502 is located on the top of the vertical frame 500. The output end of the motor 502 is fixedly connected to one end of the lead screw 501. The crossbeam 600 is slidably connected to the vertical frame 500, and the crossbeam 600 is threadedly connected to the lead screw 501. The top of the workbench 100 is also rotatably connected to a rotating shaft 504. The rotating shaft 504 is parallel to the lead screw 501. The rotating shaft 504 and the lead screw 501 are connected by a transmission belt 503. A gear 505 is fixedly sleeved on the rotating shaft 504. A rack 401 that meshes with the gear 505 is provided on one side of the support platform 400. It should be noted that the motor 502 provides power, and the lead screw 501 converts the rotational motion of the motor 502 into the lifting motion of the crossbeam 600; the transmission belt 503 transmits the power of the lead screw 501 to the rotating shaft 504, so that the rotating shaft 504 rotates synchronously; the gear 505 cooperates with the rack 401 to convert the rotational motion of the rotating shaft 504 into the horizontal movement of the support platform 400. Working principle: Before grinding, start motor 502. The output shaft of motor 502 rotates forward, driving the lead screw 501, which is fixedly connected to it, to rotate synchronously. Since the crossbeam 600 is slidably connected to the vertical frame 500, when the lead screw 501 rotates, the crossbeam 600 slowly moves downward along the sliding track of the vertical frame 500 under the action of the threaded engagement. The grinding machine 601 at the bottom of the crossbeam 600 descends synchronously with the crossbeam 600, gradually approaching the workpiece. At the same time, when the lead screw 501 rotates, it drives the transmission wheel at one end of the rotating shaft 504 to rotate synchronously through the transmission belt 503, so that the rotating shaft 504 rotates with the lead screw 501. The gear 505 fixedly sleeved on the rotating shaft 504 rotates synchronously with the rotating shaft 504. Since the gear 505 meshes with the rack 401 on one side of the support table 400, the rotation of the gear 505 generates a horizontal thrust on the rack 401, pushing the support table 400 along the slide groove 10. 3. Move towards the mounting port 102; by adjusting the transmission ratio between the lead screw 501 and the rotating shaft 504, the number of teeth of the gear 505 and the tooth pitch of the rack 401, it can be ensured that the descent speed of the crossbeam 600 matches the moving speed of the support table 400. When the grinding head of the grinder 601 contacts the surface of the workpiece, the support table 400 moves completely below the placement plate 200 to form support; after grinding, control the output shaft of the motor 502 to reverse, the lead screw 501 rotates synchronously, and the crossbeam 600 moves upward along the vertical frame 500 under the action of the threaded engagement, and the grinder 601 moves away from the workpiece; at the same time, the lead screw 501 drives the rotating shaft 504 to rotate through the transmission belt 503, and the rotation of the gear 505 generates a reverse pulling force on the rack 401, pulling the support table 400 to move along the slide groove 103 towards the receiving groove 101 until the crossbeam 600 and the support table 400 are both reset to their initial positions.Effect: This design achieves synchronous control of the lifting of the grinding machine 601 and the movement of the support platform 400 through the linkage of the motor 502, lead screw 501, transmission belt 503, gear 505, and rack 401, eliminating the need for a separate drive device for the support platform 400; reducing costs; ensuring that the support platform 400 is in place to support the workpiece when the grinding machine 601 contacts it, preventing deformation of the placement plate 200; and working in synergy with the support function of the support platform 400 and the grinding function of the grinding machine 601.

[0034] like Figure 6 As shown, in this embodiment, the top of the placement plate 200 is provided with a vertical plate 202, and the top of the vertical plate 202 is provided with a horizontal plate 203. The fixing device includes a screw 204, which is threadedly connected to the horizontal plate 203. A pressure plate 205 is fixedly connected to the bottom of the horizontal plate 203. It should be noted that the vertical plate 202 and the horizontal plate 203 form a fixing bracket to support the screw 204; the screw 204 adjusts its vertical position by rotation, driving the pressure plate 205 to move; the pressure plate 205 contacts the workpiece to fix the workpiece.

[0035] In this embodiment, the bottom of the pressure plate 205 is provided with an anti-slip pad. It should be noted that the anti-slip pad is an elastic structure at the bottom of the pressure plate 205, which increases the friction with the workpiece surface and at the same time buffers the pressure of the pressure plate 205 on the workpiece.

[0036] like Figure 2 As shown, in this embodiment, a water tank 700 is provided below the workbench 100, and the water tank 700 is located below the mounting port 102. It should be noted that the water tank 700 is located below the workbench 100, directly opposite the mounting port 102, to collect wastewater and debris generated during grinding.

[0037] The working principle of this embodiment is as follows: In the initial state, one end of the support base 800 extends out of the mounting groove 105 under the natural extension thrust of the first spring 106, and its top is in close contact with the bottom of the placement plate 200. The upward support force counteracts the downward gravity of the counterweight block 201, keeping the placement plate 200 horizontal. At this time, the limiting block 804 is located in the mounting groove 105, and the inner wall of the mounting groove 105 applies continuous pressure to the top of the limiting block 804, forcing the limiting block 804 to completely retract into the groove 802 of the support base 800 against the elastic force of the second spring 803. The second spring 803 is in a compressed state. At the same time, the support platform 400 is located in the receiving groove 101, and the sliders 402 at both ends are embedded in the sliding grooves 103 on both sides of the receiving groove 101. In the fixing device at the top of the placement plate 200, the screw 204 is in the highest position of upward rotation, and the pressure plate 205 is in a higher position along with the screw 204.

[0038] The worker places the diamond workpiece to be polished steadily in the middle area of ​​the top of the placement plate 200, and then rotates the screw 204. The screw 204 moves downward along the threaded hole of the horizontal plate 203, causing the pressure plate 205 to descend synchronously. The anti-slip pad at the bottom of the pressure plate 205 first contacts the surface of the workpiece and undergoes elastic deformation under pressure, tightly adhering to the surface of the workpiece to increase friction. The screw 204 continues to rotate so that the pressure plate 205 applies a stable clamping force to the workpiece. The anti-slip and buffering effect of the anti-slip pad ensures that the workpiece is fixed and not damaged. Next, the motor 502 of the first drive device is started. The output shaft of the motor 502 rotates forward, driving the lead screw 501, which is fixedly connected to it, to rotate synchronously. Since the crossbeam 600 is slidably connected to the vertical frame 500 and threadedly engaged with the lead screw 501, the crossbeam 600 slowly moves downward along the sliding track of the vertical frame 500. The grinding machine 601 at the bottom of the crossbeam 600 descends synchronously with the crossbeam 600 and gradually approaches the workpiece. At the same time, when the lead screw 501 rotates, it drives the transmission at one end of the rotating shaft 504 through the transmission belt 503. The wheels rotate synchronously, causing the rotating shaft 504, parallel to the lead screw 501, to rotate with the lead screw 501. The gear 505, fixedly sleeved on the rotating shaft 504, rotates synchronously. The gear 505 meshes with the rack 401 on one side of the support platform 400, generating a horizontal thrust on the rack 401. This pushes the support platform 400, causing the slider 402 to slide along the slide groove 103 towards the mounting opening 102. The end of the support platform 400 closest to the support base 800 first engages with the inclined guide surface 80 of the support base 800 towards the receiving groove 101. 1. At the lower end, as the support platform 400 continues to move, its end applies a horizontal thrust to the guide surface 801. This thrust is decomposed along the inclined guide surface 801 into a component force toward the mounting groove 105, pushing the support base 800 to overcome the elastic force of the first spring 106 and move into the mounting groove 105. During the movement of the support base 800, the limiting block 804 moves synchronously into the depth of the mounting groove 105 and is always kept in a retracted state by the pressure of the inner wall of the mounting groove 105 until the support base 800 moves into the groove. The limit block 802 is fully aligned with the limit opening 104 of the worktable 100. The top of the limit block 804 is freed from the constraint of the inner wall of the mounting groove 105. The second spring 803 releases the compressive elastic potential energy to push the limit block 804 to slide upward. The top of the limit block 804 extends out of the groove 802 and is embedded in the limit opening 104, fixing the support base 800 in the mounting groove 105. When the support table 400 is completely moved below the placement plate 200, its top is in close contact with the bottom of the placement plate 200 to form a surface support. As the crossbeam 600 lowers the grinding machine 601, the water pump 301 is activated. Water in the water tank 300 is pumped through the water pipe 302 to each nozzle 303 under the pressure of the water pump 301. The nozzles 303 spray water in a mist or column shape onto the workpiece and the grinding head area of ​​the grinding machine 601. When the grinding head of the grinding machine 601 contacts the surface of the workpiece and reaches the preset pressure, the grinding machine 601 starts to grind the surface of the workpiece. During the grinding process, the nozzles 303 continuously spray water to reduce dust, cool down and assist in cleaning debris. The support platform 400 continuously bears the downward pressure of the placement plate 200, the workpiece and the grinding machine 601 to ensure that the placement plate 200 is horizontal and stable and to avoid deformation of the placement plate 200 due to pressure, which would affect the uniformity of grinding. After grinding, first turn off the grinder 601, then control the output shaft of the motor 502 to reverse, and the lead screw 501 to reverse synchronously. Under the action of the threaded engagement, the crossbeam 600 moves upward along the vertical frame 500. The grinder 601 moves away from the workpiece synchronously with the crossbeam 600. At the same time, the lead screw 501 drives the rotating shaft 504 to reverse through the transmission belt 503. The gear 505 generates a reverse pulling force on the rack 401, pulling the support table 400 to slide along the slide groove 103 towards the receiving groove 101 until it completely returns to the receiving groove 101. The slider 402 returns to the receiving groove 101 section of the slide groove 103. At this time, the placement plate 200 With no support below, the placement plate 200 tilts downward around the central support 206 under the weight of the counterweight 201. Grinding debris adhering to the workpiece surface slides off the inclined surface of the placement plate 200 and falls into the water tank 700 below through the mounting port 102 of the worktable 100. Wastewater also falls into the water tank 700 for centralized collection. Finally, the operator rotates the screw 204 in the opposite direction, and the pressure plate 205 rises with the screw 204 to detach from the workpiece. The ground workpiece is then removed, and the limiting block 804 is pressed down to allow the support 800 to extend again. The device returns to its initial state, ready for the next grinding operation.

[0039] Example 2 This embodiment proposes a method for grinding diamond workpieces based on Embodiment 1, including: Step S1: Place the diamond workpiece to be polished stably in the middle area of ​​the top of the placement plate 200, and clamp and fix the workpiece by the fixing device. Step S2: Start the first drive device to drive the crossbeam 600 to move slowly downward along the sliding track of the vertical frame 500. The grinding machine 601 at the bottom of the crossbeam 600 descends synchronously with the crossbeam 600 and gradually approaches the surface of the workpiece. As the crossbeam 600 lowers the grinding machine 601, the water pump 301 is started. Under the pressure of the water pump 301, the water in the water tank 300 is transported through the water pipe 302 to each nozzle 303. The nozzle 303 sprays water in the form of mist or column onto the workpiece on the placement plate 200 and the grinding head area of ​​the grinding machine 601. When the grinding head of the grinding machine 601 contacts the workpiece surface and reaches the preset pressure, the grinding machine 601 is started to begin grinding the workpiece surface. Step S3: After the grinding operation is completed, first turn off the grinding machine 601; then control the first drive device to run in reverse, driving the crossbeam 600 to move upward along the vertical frame 500. The grinding machine 601 moves away from the workpiece synchronously with the crossbeam 600 and returns to the initial height; at the same time, turn off the water pump 301 and the nozzle 303 stops spraying water, completing the equipment reset. Step S4: The support base 800 is retracted into the mounting groove 105 by external force control. The top of the support base 800 is no longer in contact with the bottom of the placement plate 200. Under the gravity of the counterweight block 201, the placement plate 200 tilts downward around the support 206 in the middle. The grinding debris attached to the surface of the workpiece slides off naturally with the inclined surface of the placement plate 200, completing the debris cleaning.

[0040] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this invention does not involve any improvement to the software and methods.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for polishing a diamond tool, comprising: The workbench (100) includes a workbench (100) with two supports (206) spaced apart along its length on the top. The top of the workbench (100) also has a through-hole (102) between the two supports (206). A placement plate (200) is provided at the installation hole (102). The two ends of the middle part of the placement plate (200) are respectively hinged to the two supports (206). A fixing device is provided on the top of the placement plate (200). A counterweight (201) is provided at one end of the placement plate (200), so that one end of the placement plate (200) is tilted downward. The mounting port (102) has mounting grooves (105) at both ends along its length. A support base (800) is provided in the mounting groove (105). One end of the support base (800) extends outside the mounting groove (105), and the top of the support base (800) contacts the bottom of the placement plate (200) to prevent the placement plate (200) from tilting. The support base (800) can be retracted into the mounting groove (105) or extended outside the mounting groove (105). The top of the workbench (100) is also provided with a vertical frame (500), a crossbeam (600) is slidably connected on the vertical frame (500), a grinder (601) is provided at the bottom of the crossbeam (600), and a first driving device for driving the crossbeam (600) to rise and fall is also provided on the vertical frame (500). The top of the workbench (100) is also provided with a water tank (300), a water pipe (302) is connected to the water tank (300), a nozzle (303) is connected to the water pipe (302), the nozzle (303) faces the placement plate (200), and a water pump (301) is also provided on the water pipe (302).

2. An apparatus for polishing a diamond tool according to claim 1, wherein The support base (800) is connected to the mounting groove (105) via a first spring (106).

3. An apparatus for polishing a diamond tool according to claim 2, wherein The top of the workbench (100) is provided with a limiting port (104) that communicates with the mounting groove (105). The top of the support base (800) is provided with a groove (802), and a limiting block (804) is slidably embedded in the groove (802). The bottom of the limiting block (804) is connected to the groove (802) by a second spring (803), and the top of the limiting block (804) extends outside the groove (802). The limiting block (804) cooperates with the limiting port (104).

4. The diamond workpiece grinding device according to claim 3, characterized in that, The top of the workbench (100) is also provided with a receiving groove (101) communicating with the mounting port (102), and sliding grooves (103) are provided on both sides of the receiving groove (101), the sliding grooves (103) extending into the mounting port (102); The receiving groove (101) is provided with a support platform (400), the top of the support platform (400) is flush with the bottom of the placement plate (200), and the two ends of the support platform (400) are provided with sliders (402), which are slidably embedded in the groove (103).

5. The diamond workpiece grinding device according to claim 4, characterized in that, The support base (800) has a guide surface (801) at one end facing the support platform (400), and the guide surface (801) is inclined.

6. The diamond workpiece grinding device according to claim 4, characterized in that, The first driving device includes a motor (502) and a lead screw (501). The two ends of the lead screw (501) are rotatably connected to the vertical frame (500). The motor (502) is located on the top of the vertical frame (500). The output end of the motor (502) is fixedly connected to one end of the lead screw (501). The crossbeam (600) is slidably connected to the vertical frame (500), and the crossbeam (600) is threadedly connected to the lead screw (501). The top of the workbench (100) is also rotatably connected to a rotating shaft (504), which is parallel to the lead screw (501). The rotating shaft (504) and the lead screw (501) are connected by a transmission belt (503). A gear (505) is fixedly sleeved on the rotating shaft (504), and a rack (401) that meshes with the gear (505) is provided on one side of the support platform (400).

7. The diamond workpiece grinding device according to claim 1, characterized in that, The top of the placement plate (200) is provided with a vertical plate (202), the top of the vertical plate (202) is provided with a horizontal plate (203), the fixing device includes a screw (204), the screw (204) is threadedly connected to the horizontal plate (203), and a pressure plate (205) is fixedly connected to the bottom of the horizontal plate (203).

8. The diamond workpiece grinding device according to claim 7, characterized in that, The bottom of the pressure plate (205) is provided with an anti-slip pad.

9. The diamond workpiece grinding device according to claim 1, characterized in that, A water tank (700) is provided below the workbench (100), and the water tank (700) is located below the mounting port (102).

10. A method for grinding diamond workpieces, implemented using the diamond workpiece grinding device described in claim 1, characterized in that, include: Step S1: Place the diamond workpiece to be polished stably in the middle area of ​​the top of the placement plate (200), and clamp and fix the workpiece by means of the fixing device; Step S2: Start the first drive device to drive the crossbeam (600) to move slowly downward along the sliding track of the vertical frame (500). The grinding machine (601) at the bottom of the crossbeam (600) descends synchronously with the crossbeam (600) and gradually approaches the surface of the workpiece. While the crossbeam (600) drives the grinder (601) to descend, the water pump (301) is started. Under the pressure of the water pump (301), the water in the water tank (300) is transported through the water pipe (302) to each nozzle (303). The nozzle (303) sprays water in the form of mist or column onto the workpiece on the placement plate (200) and the grinding head area of ​​the grinder (601). When the grinding head of the grinding machine (601) contacts the workpiece surface and reaches the preset pressure, the grinding machine (601) is started to begin grinding the workpiece surface. Step S3: After the grinding operation is completed, first turn off the grinding machine (601); then control the first drive device to run in reverse, drive the crossbeam (600) to move upward along the vertical frame (500), and the grinding machine (601) moves away from the workpiece synchronously with the crossbeam (600) to return to the initial height; at the same time, turn off the water pump (301), and the nozzle (303) stops spraying water to complete the equipment reset; Step S4: The support base (800) is retracted into the mounting groove (105) by external force control. The top of the support base (800) is disengaged from the bottom of the placement plate (200). Under the gravity of the counterweight (201), the placement plate (200) tilts downward around the support (206) in the middle. The grinding debris attached to the surface of the workpiece slides off naturally with the inclined surface of the placement plate (200), completing the debris cleaning.

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