A resin plate refiner device with a differential pressure compensation mechanism

Abstract

This invention discloses a resin grinding plate precision grinding device with a differential pressure compensation mechanism, which relates to the field of workpiece grinding technology. This resin grinding plate precision grinding device with a differential pressure compensation mechanism precisely solves the pressure regulation defects of traditional devices, improving the stability of grinding pressure. Through a constructed real-time monitoring, dynamic compensation, and precise locking closed-loop control link, this device can capture pressure changes caused by surface flatness during workpiece grinding in real time, and achieve differential pressure adjustment through the precise extension and retraction of a high-precision push rod. This ensures that the contact pressure between the resin grinding plate and the workpiece remains at a rated uniform state, effectively compensating for the technical shortcomings of traditional devices that can only identify pressure differences but cannot achieve dynamic adjustment, thus ensuring the stability of grinding pressure and improving the precision and quality of grinding processing.

Description

Technical Field

[0001] This invention relates to the field of workpiece grinding technology, specifically to a resin grinding plate precision grinding device equipped with a differential pressure compensation mechanism. Background Technology

[0002] The resin grinding plate precision grinding equipment equipped with a differential pressure compensation mechanism is a special equipment used for the precision grinding of surfaces of hard and brittle materials such as resin plates. Its core feature is the addition of a differential pressure compensation mechanism to the traditional resin grinding plate precision grinding system. This mechanism can dynamically adjust the pressure application strategy of the grinding head / workpiece according to the real-time pressure distribution difference between the grinding plate and the workpiece, so as to achieve precise and adaptive compensation of the grinding plate pressure, and ultimately improve the processing accuracy and consistency of the workpiece surface.

[0003] Regarding the aforementioned technologies, it is believed that when grinding is required on the surface of a workpiece, the flexible grinding characteristics of the resin grinding plate can be used to remove the rough grinding damage layer on the surface of the workpiece, thereby further reducing the surface roughness and achieving the required precision. However, during the grinding process, as the resin grinding plate rotates continuously, the pressure sensor installed inside it also collects the contact pressure data between the grinding plate and the workpiece in real time. When the rough or uneven parts of the workpiece surface are ground, the pressure between the resin grinding plate and the workpiece gradually decreases. At this time, the pressure sensor recognizes the unevenness of the pressure distribution and detects the pressure difference. It is unable to make differential adjustment according to the change of pressure value to make the grinding plate pressure tend to be uniform and maintain the rated value, which leads to insufficient grinding accuracy of the workpiece surface and unstable processing quality. Therefore, it is necessary to design a method that adjusts the pressure compensation during the processing of resin grinding plates to offset the pressure distribution changes caused by the flattening of the workpiece, thereby improving the surface finish of the workpiece and enhancing the grinding quality. Summary of the Invention

[0004] The purpose of this invention is to provide a resin grinding plate fine grinding equipment with a differential pressure compensation mechanism, which solves the problems mentioned in the background art.

[0005] To achieve this objective, the present invention adopts the following technical solution: A resin grinding plate precision grinding equipment with a differential pressure compensation mechanism includes a worktable and a placement platform installed at the center of the top wall of the worktable for placing workpieces. A vertical frame is installed on the rear wall of the worktable, and a high-precision push rod is installed on the top wall of the vertical frame for controlling grinding pressure and pressure compensation. The movable end of the high-precision push rod slides through the vertical frame and is fixedly installed with a lifting platform. The bottom of the lifting platform is equipped with a resin grinding plate adapted to the position of the placement platform via a drive mechanism. A pressure sensor is installed at the center of the bottom of the resin grinding plate to monitor pressure changes and to compensate for pressure by pressing down with a high-precision push rod. Locking mechanisms are installed between the outer sides of the lifting platform and the worktable to lock and limit the lifting path, thereby improving the stability of the resin grinding plate. A clamping assembly for limiting the workpiece is installed on the rear wall of the lifting platform.

[0006] Furthermore, the locking mechanism includes a platform fixedly installed on the outer wall of the upright frame. The bottom end of the platform is fixedly connected to the top wall of the worktable. The platform provides stable support for the upright frame to prevent deformation under stress. Several trapezoidal locking grooves are equidistantly provided on the side of the platform near the placement table. The outer wall of the lifting platform is provided with an installation groove. Limit grooves are provided on the front and rear walls of the installation groove. Several abutment springs are evenly installed on the inner wall of the installation groove. The movable ends of several abutment springs located in the same installation groove are all equipped with the same movable seat. The movable seats slide in the inner wall of the corresponding installation groove. Limit blocks are installed on the front and rear walls of the movable seats at the positions corresponding to the limit grooves. The outer walls of the limit blocks are slidably connected to the inner walls of the corresponding limit grooves.

[0007] Furthermore, each of the movable seats is fixedly installed with a trapezoidal locking seat that is adapted to the trapezoidal locking groove. The trapezoidal locking seat abuts against the inner wall of the corresponding trapezoidal locking groove for limiting the position after the resin polishing plate is pressed down to compensate for the pressure, so as to prevent the displacement problem.

[0008] Furthermore, the drive mechanism includes a U-shaped seat fixedly installed at the bottom of the lifting platform, a drive shaft rotatably installed at the center of the inner wall of the U-shaped seat, the bottom end of the drive shaft passing through the U-shaped seat and fixedly connected to the top of the resin polishing plate through a bearing, and a gear fixedly installed on the outer wall of the drive shaft.

[0009] Furthermore, a drive motor is installed on the bottom wall of the lifting platform and inside the U-shaped seat. The drive motor has a second gear that meshes with the first gear fixedly mounted on its power shaft. The drive motor drives the second gear and the first gear to mesh and rotate slowly, thereby controlling the drive shaft and the resin grinding plate to perform precision grinding on the workpiece.

[0010] Furthermore, the clamping assembly includes a clamping mechanism and a control mechanism. The control mechanism includes a mounting platform fixedly installed on the rear wall of the lifting platform. A positioning frame is fixedly installed on the bottom wall of the mounting platform. The outer side wall of the positioning frame is provided with ear grooves. A plurality of return springs are evenly installed on the inner wall of the positioning frame. The bottom end of each return spring is equipped with the same sliding platform.

[0011] Furthermore, ear blocks are installed on the outer wall of the sliding platform at the position of the ear groove, and the outer wall of the ear block is slidably connected to the inner wall of the corresponding ear groove. A reset platform adapted to the inner wall of the positioning frame is installed on the bottom wall of the sliding platform, and a triangular seat is installed at the bottom end of the reset platform.

[0012] Furthermore, a receiving groove is provided on the top wall of the workbench at the position corresponding to the triangular seat, and an electromagnet is fixedly installed on the bottom wall of the receiving groove to attract and fix the triangular seat to form a position limit.

[0013] Furthermore, the clamping mechanism includes a steering shaft rotatably mounted on both sides of the rear of the top wall of the worktable. A return coil spring is installed at the bottom end of each steering shaft, and a steering seat is installed at the top end of each steering shaft. An abutment platform is installed on the side of each steering seat near the triangular seat. The position of the abutment platform is adapted to the outer wall of the triangular seat. An arc-shaped clamping seat is fixedly installed at the front end of each abutment platform. An anti-slip pad is installed on the inner wall of each arc-shaped clamping seat to increase the friction between the workpiece and the workpiece.

[0014] Furthermore, telescopic positioning shafts are installed on both sides of the upright frame and the lifting platform. An outer edge ring is installed at the bottom of the outer wall of the placement platform. An annular collection groove is opened on the top wall of the worktable. A guide groove is opened on one side of the annular collection groove and inside the worktable. A collection frame is installed on the side wall of the worktable at the position corresponding to the discharge end of the guide groove. The liquid additives used on the surface of the workpiece during grinding flow through the placement platform and the outer edge ring into the annular collection groove, and then flow into the collection frame through the guide groove for centralized collection to prevent overflow.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This resin grinding plate precision grinding equipment with a differential pressure compensation mechanism precisely solves the pressure regulation defects of traditional devices and improves the stability of grinding pressure. Through the construction of a real-time monitoring, dynamic compensation, and precise locking closed-loop control link, this device can capture the pressure changes caused by the surface flatness of the workpiece during the grinding process in real time, and realize differential pressure adjustment through the precise extension and retraction of high-precision push rods. This ensures that the contact pressure between the resin grinding plate and the workpiece is always kept at a rated uniform state, effectively making up for the technical shortcomings of traditional devices that can only identify pressure differences but cannot realize dynamic adjustment, thus ensuring the stability of grinding pressure and improving the precision and quality of grinding processing.

[0016] 2. This resin grinding plate precision grinding equipment with differential pressure compensation mechanism improves workpiece clamping stability and avoids the risk of grinding deviation: It adopts a synchronous linkage structure for lifting and clamping, combined with a triple fixing design of linkage clamping, electromagnetic adsorption, and rigid contact. While the lifting platform drives the resin grinding plate to descend, it can drive the clamping components to quickly and accurately clamp the workpiece. Moreover, the dual protection of electromagnet adsorption fixation and rigid contact of the contact platform ensures that the workpiece maintains a stable posture throughout the grinding process, solving the hidden danger of workpiece shaking and deviation during the grinding process and providing a basic guarantee for stable grinding.

[0017] 3. This resin grinding plate precision grinding equipment with differential pressure compensation mechanism relies on the rigid limiting of the lifting platform by the telescopic positioning shaft, the precise transmission of gear meshing, and the dynamic pressure compensation mechanism. The resin grinding plate can smoothly adhere to the workpiece according to the preset path and maintain uniform grinding pressure. It can remove impurities and uneven parts on the surface of the workpiece. At the same time, with the cooling and lubrication effect of the grinding aid, it can effectively reduce grinding damage, improve the surface gloss of the workpiece, and greatly improve the precision grinding accuracy of the workpiece and the consistency of batch processing.

[0018] 4. This resin grinding plate precision grinding equipment with differential pressure compensation mechanism, through the design of pressure triggering and instant locking of the locking mechanism, can quickly lock the position of the lifting platform after the resin grinding plate reaches the rated grinding pressure. This avoids relying on the high-precision push rod itself to lock and bear the grinding vibration load, significantly reducing the axial load on the moving end of the push rod and improving the working stability of the equipment.

[0019] 5. This resin grinding plate precision grinding equipment with differential pressure compensation mechanism can guide all the liquid additives that slip off during the grinding process into the collection frame for unified recycling through the synergistic effect of the annular collection tank, the outer ring and the guide tank. This effectively prevents the additives from overflowing and polluting the equipment and processing environment, keeps the processing environment clean and reduces pollutant emissions.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0023] Figure 1 This is a schematic diagram of the external structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the external structure of the present invention. Figure 2 ; Figure 3This invention comprises a workbench, a placement platform, a collection frame, an annular collection trough, and an outer ring assembly. Figure 1 ; Figure 4 This invention comprises a workbench, a placement platform, a collection frame, an annular collection trough, and an outer ring assembly. Figure 2 ; Figure 5 This is an assembly diagram of the stand, high-precision push rod, clamping assembly, and placement platform of the present invention; Figure 6 The internal structure of the clamping component of this invention exploded. Figure 1 ; Figure 7 The internal structure of the clamping component of this invention exploded. Figure 2 ; Figure 8 This is a combined diagram of the lifting platform, driving mechanism, and locking mechanism of the present invention; Figure 9 This is a schematic diagram of the external structure of the drive mechanism of the present invention; Figure 10 This is an exploded view of the internal structure of the locking mechanism of the present invention; Figure 11 This is a cross-sectional view of the internal structure of the locking mechanism of the present invention; Figure 12 This is a schematic diagram of the resin polishing plate and pressure sensor assembly of the present invention.

[0024] Illustrations: 1. Workbench; 2. Placement table; 3. Locking mechanism; 31. Stand; 32. Trapezoidal locking groove; 33. Trapezoidal locking seat; 34. Moving seat; 35. Limiting block; 36. Abutment spring; 37. Limiting groove; 38. Mounting groove; 4. Stand; 5. Drive mechanism; 51. U-shaped seat; 52. Drive motor; 53. Gear 2; 54. Gear 1; 55. Drive shaft; 6. Guide channel; 7. Clamping assembly; 71. Mounting table; 72. Positioning frame; 73. 74. Ear slot; 75. Return spring; 76. Sliding table; 77. Ear block; 78. Return table; 79. Triangular seat; 70. Steering shaft; 710. Return coil spring; 711. Arc-shaped clamping seat; 712. Steering seat; 713. Abutment platform; 714. Electromagnet; 715. Receiving groove; 8. High-precision push rod; 9. Resin fine grinding plate; 10. Pressure sensor; 11. Lifting platform; 12. Telescopic positioning shaft; 13. Collection frame; 14. Annular collection groove; 15. Outer ring. Detailed Implementation

[0025] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0026] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] Please see Figures 1-12 This invention provides a resin grinding plate fine grinding equipment with a differential pressure compensation mechanism, including a worktable 1 and a placement platform 2 installed at the center of the top wall of the worktable 1 for placing workpieces. A stand 4 is installed on the rear wall of the worktable 1, and a high-precision push rod 8 is installed on the top wall of the stand 4 for controlling grinding pressure and pressure compensation. The movable end of the high-precision push rod 8 slides through the stand 4 and is fixedly installed with a lifting platform 11. The bottom of the lifting platform 11 is equipped with a resin grinding plate 9 that is adapted to the position of the placement platform 2 via the drive mechanism 5. A pressure sensor 10 is installed at the center of the bottom of the resin grinding plate 9 to monitor pressure value changes and to cooperate with the high-precision push rod 8 to press down for pressure compensation. Locking mechanisms 3 are installed between the outer sides of the lifting platform 11 and the worktable 1 to lock and limit the lifting path and improve the precision grinding stability of the resin grinding plate 9. A clamping assembly 7 for limiting the workpiece is installed on the rear wall of the lifting platform 11.

[0029] In this implementation scheme, by setting the core load-bearing component workbench 1 as an integral rigid structure, a stable installation benchmark is provided for components such as placement platform 2 and upright frame 4, ensuring the assembly accuracy of each component; placement platform 2 is set directly below resin grinding plate 9, which can realize the precise alignment of the workpiece grinding position, and with the rigid connection between high-precision push rod 8 and lifting platform 11, it lays the structural foundation for subsequent precise pressure application and compensation.

[0030] Specifically, the locking mechanism 3 includes a platform 31 fixedly installed on the outer wall of the upright 4. The bottom end of the platform 31 is fixedly connected to the top wall of the workbench 1. The platform 31 can provide stable support for the upright 4 to prevent deformation under stress. Several trapezoidal locking grooves 32 are equidistantly provided on the side of the platform 31 near the placement platform 2. The outer wall of the lifting platform 11 is provided with an installation groove 38. The front and rear walls of the installation groove 38 are provided with limit grooves 37. Several abutment springs 36 are evenly installed on the inner wall of the installation groove 38. The movable ends of several abutment springs 36 located in the same installation groove 38 are all equipped with the same movable seat 34. The movable seat 34 slides in the inner wall of the corresponding installation groove 38. Limit blocks 35 are installed on the front and rear walls of the movable seat 34 and at the positions corresponding to the limit grooves 37. The outer walls of the limit blocks 35 are slidably connected to the inner walls of the corresponding limit grooves 37.

[0031] In this embodiment, the mounting groove 38 and the movable seat 34 are precisely matched in shape, which can restrict the movement direction of the movable seat 34; the sliding fit structure between the limiting block 35 and the limiting groove 37 further constrains the front and rear displacement of the movable seat 34, preventing it from swaying during the extension and retraction of the abutment spring 36, and ensuring that the trapezoidal locking seat 33 can be accurately aligned with the trapezoidal locking groove 32; the design of multiple abutment springs 36 being evenly distributed can make the elastic force on the movable seat 34 more balanced, ensuring the smoothness of locking and unlocking actions.

[0032] Specifically, each of the outer walls of the movable base 34 is fixedly equipped with a trapezoidal locking seat 33 that is compatible with the trapezoidal locking groove 32. The trapezoidal locking seat 33 abuts against the inner wall of the corresponding trapezoidal locking groove 32 for limiting the position of the resin polishing plate 9 after the pressure is applied to compensate for the pressure, so as to prevent the displacement problem.

[0033] In this embodiment, the trapezoidal locking seat 33 and the trapezoidal locking groove 32 adopt a sloping fit structure design, which not only facilitates the guiding insertion during locking, but also improves the locking stability by utilizing the self-locking characteristics of the sloping surface; the precise matching of the two dimensions can ensure sufficient contact area, avoid excessive local force leading to component wear, effectively ensure the positional stability of the resin grinding plate 9 after pressure compensation, and indirectly improve the grinding accuracy.

[0034] Specifically, the drive mechanism 5 includes a U-shaped seat 51 fixedly installed at the bottom of the lifting platform 11. A drive shaft 55 is rotatably installed at the center of the inner wall of the U-shaped seat 51. The bottom end of the drive shaft 55 passes through the U-shaped seat 51 through a bearing and is fixedly connected to the top of the resin polishing plate 9. A gear 54 is fixedly installed on the outer wall of the drive shaft 55.

[0035] In this embodiment, the U-shaped seat 51 provides stable rotational support for the drive shaft 55, reducing radial runout when the drive shaft 55 rotates; the rigid fixed connection between the drive shaft 55 and the resin polishing plate 9 ensures the accuracy of power transmission and avoids power loss or transmission lag.

[0036] Specifically, a drive motor 52 is installed on the bottom wall of the lifting platform 11 and inside the U-shaped seat 51. The drive shaft of the drive motor 52 is fixedly mounted with a second gear 53 that meshes with the first gear 54. The drive motor 52 drives the second gear 53 and the first gear 54 to mesh and rotate slowly, thereby controlling the drive shaft 55 and the resin grinding plate 9 to perform precision grinding on the workpiece.

[0037] In this embodiment, gear 1 54 and gear 2 53 adopt a meshing tooth design, which can realize the smooth transmission of power and ensure the rotational stability of the resin grinding plate 9, avoiding uneven grinding texture caused by rotational speed fluctuations during the grinding process; the design of the drive motor 52 being installed inside the U-shaped seat 51 can make reasonable use of space to make the overall structure of the drive mechanism 5 more compact, while the U-shaped seat 51 can provide a certain degree of protection for the drive motor 52, reducing the corrosion of the motor by grinding dust and additives.

[0038] Specifically, the clamping assembly 7 includes a clamping mechanism and a control mechanism. The control mechanism includes a mounting platform 71 fixedly installed on the rear wall of the lifting platform 11. A positioning frame 72 is fixedly installed on the bottom wall of the mounting platform 71. The outer side wall of the positioning frame 72 is provided with ear grooves 73. A number of return springs 74 are evenly installed on the inner wall of the positioning frame 72. The bottom end of each return spring 74 is equipped with the same sliding platform 75.

[0039] In this embodiment, the rigid connection between the mounting platform 71 and the lifting platform 11 ensures that the control mechanism can rise and fall synchronously with the lifting platform 11, ensuring the coordination of the clamping action and the lifting action; the positioning frame 72 provides a stable installation and movement space for the return spring 74 and the sliding platform 75; the opening of the ear groove 73 provides a guide for the sliding of the ear block 76; the even distribution of multiple return springs 74 can make the return force on the sliding platform 75 balanced, ensuring the smoothness of the lifting process of the sliding platform 75.

[0040] Specifically, ear blocks 76 are installed on the outer wall of the sliding platform 75 at the position of the ear groove 73. The outer wall of the ear block 76 is slidably connected to the inner wall of the corresponding ear groove 73. A reset platform 77 adapted to the inner wall of the positioning frame 72 is installed on the bottom wall of the sliding platform 75. A triangular seat 78 is installed at the bottom end of the reset platform 77.

[0041] In this embodiment, the sliding engagement between the ear block 76 and the ear groove 73 can limit the left and right displacement of the sliding table 75, preventing it from swaying during lifting and lowering, and ensuring that the triangular seat 78 can be accurately aligned with the lower abutment platform 713. The matching design between the reset platform 77 and the inner wall of the positioning frame 72 further improves the guiding accuracy of the lifting and lowering of the sliding table 75. The triangular structure design of the triangular seat 78 can utilize the inclined plane guiding effect to ensure that the steering seat 712 can be smoothly driven to rotate when in contact with the abutment platform 713.

[0042] Specifically, a receiving groove 715 is provided on the top wall of the workbench 1 at the position corresponding to the triangular seat 78. An electromagnet 714 is fixedly installed on the bottom wall of the receiving groove 715 to attract and fix the triangular seat 78 to form a position limit.

[0043] In this embodiment, the size of the receiving groove 715 is adapted to the triangular seat 78, which can provide sufficient receiving space for the triangular seat 78 to ensure that the triangular seat 78 can be smoothly lowered into place; the electromagnet 714 is installed at the center of the bottom wall of the receiving groove 715, which can ensure that the adsorption force on the triangular seat 78 is uniform and improve the stability of adsorption and fixation; by controlling the on and off of the electromagnet 714, the rapid fixation and release of the triangular seat 78 can be achieved, ensuring the rapid response of the clamping mechanism.

[0044] Specifically, the clamping mechanism includes a steering shaft 79 rotatably mounted on both sides of the rear part of the top wall of the worktable 1. A return coil spring 710 is installed at the bottom end of each steering shaft 79, and a steering seat 712 is installed at the top end of each steering shaft 79. An abutment platform 713 is installed on the side of each steering seat 712 near the triangular seat 78. The position of the abutment platform 713 is adapted to the outer wall of the triangular seat 78. An arc-shaped clamping seat 711 is fixedly installed at the front end of each abutment platform 713. An anti-slip pad is installed on the inner wall of each arc-shaped clamping seat 711 to increase the friction between the workpiece and the workpiece.

[0045] In this embodiment, the rotating connection structure between the steering shaft 79 and the worktable 1 ensures that the steering seat 712 can rotate flexibly to provide a guarantee for the opening and closing of the arc-shaped clamping seat 711; the reset coil spring 710 can drive the steering shaft 79 to rotate in the opposite direction after the clamping is released by using elastic reset force, so that the arc-shaped clamping seat 711 can automatically reset to facilitate the picking and placing of workpieces. The arc-shaped clamping base 711 has an arc design that can adapt to the shape of various round workpieces, improving the versatility of the equipment. The anti-slip pad increases the coefficient of friction with the workpiece to prevent the workpiece from sliding during clamping, and also protects the workpiece surface to prevent clamping damage.

[0046] Specifically, telescopic positioning shafts 12 are installed on both sides between the upright frame 4 and the lifting platform 11. An outer edge ring 15 is installed at the bottom of the outer wall of the placement platform 2. An annular collection groove 14 is opened on the top wall of the worktable 1. A guide groove 6 is opened on one side of the annular collection groove 14 and inside the worktable 1. A collection frame 13 is installed on the side wall of the worktable 1 at the position corresponding to the discharge end of the guide groove 6. The liquid additives used on the surface of the workpiece during grinding flow into the annular collection groove 14 through the placement platform 2 and the outer edge ring 15, and then flow into the collection frame 13 through the guide groove 6 for centralized collection to prevent overflow.

[0047] In this embodiment, the telescopic positioning shafts 12 symmetrically arranged on both sides can accurately guide and rigidly limit the lifting path of the lifting platform 11, preventing the lifting platform 11 from tilting and ensuring the uniformity of contact between the resin grinding plate 9 and the workpiece. The outer ring 15 can guide the additives that slide off the surface of the workpiece to flow smoothly into the annular collection tank 14, preventing the additives from flowing randomly along the outer wall of the placement platform 2. The annular collection trough 14 surrounds the placement platform 2 to achieve all-round collection of the additives. The inclined design of the guide trough 6 uses gravity to make the additives flow smoothly to the collection frame 13. The detachable design of the collection frame 13 facilitates the centralized processing and recycling of the additives.

[0048] The working principle of this device is as follows: The drive motor 52, electromagnet 714, high-precision push rod 8, and pressure sensor 10 of this device are electrically connected to an external power source through a standardized wiring layout, providing a stable and controllable power source for the entire process of the device operation. The models of electrical control components can be flexibly selected from the existing standard parts system according to the actual working conditions. The signal input terminals of the drive motor 52, electromagnet 714, high-precision push rod 8, and pressure sensor 10 are all precisely connected one-to-one with the signal output terminal of the external controller. At the same time, the signal feedback terminal of the pressure sensor 10 is directly connected to the signal input terminal of the controller, realizing real-time transmission and precise execution of commands, providing core guarantee for the automated control of the device. The following is a description of the specific working principle, technological innovations, and technical effects: Grinding preparation and lifting positioning The workpiece requiring precision grinding is placed in the preset position on the top of the placement table 2. Then, the external controller starts the preset grinding program. The external controller precisely controls the high-precision push rod 8 installed on the top of the stand 4. Its movable end pushes the lifting table 11, the drive mechanism 5 and the resin grinding plate 9 to slowly descend. The lifting table 11 simultaneously drives the telescopic positioning shaft 12 to gradually and rigidly stretch. This can precisely and rigidly limit the lifting path of the lifting table 11, ensuring that it moves smoothly according to the preset route, laying the foundation for the precision of subsequent workpiece clamping and grinding contact.

[0049] Clamping and positioning lock When the lifting platform 11 descends, it simultaneously drives the locking mechanism 3 and the clamping component 7 to work together. The lifting platform 11, together with the mounting platform 71 and the positioning frame 72, descends synchronously, thereby driving the sliding platform 75, the reset platform 77 and the triangular seat 78 to gradually approach the abutment platform 713 between the steering seat 712, and descend from between the two to contact the abutment platform 713. As the triangular seat 78 continues to descend, it will drive the steering seat 712, the arc-shaped clamping seat 711 and the steering shaft 79 to rotate on the top of the worktable 1, so that the arc-shaped clamping seat 711 gradually approaches the outer edge of the workpiece placed on the top of the placement table 2 and forms a precise clamp. At the same time, the rotation of the steering shaft 79 will cause the reset coil spring 710 to deform, storing elastic potential energy for subsequent unlocking and reset. When the triangular seat 78 gradually enters the inner wall of the receiving groove 715 at the top of the worktable 1, the external controller controls the electromagnet 714 to be energized. Under the action of magnetism, the electromagnet 714 attracts and fixes the bottom position of the triangular seat 78. At this time, the outer wall of the triangular seat 78 and the abutment table 713 maintain a tight abutment contact state, so that the arc-shaped clamping seat 711 and its internal anti-slip pad always form a stable clamping abutment on the outer edge of the workpiece. With a triple fixing structure of "linkage clamping + electromagnetic adsorption + rigid contact", compared with the traditional single clamping method, it can ensure that the workpiece maintains a stable posture during the subsequent grinding process, effectively preventing shaking and displacement, and providing a guarantee for the stable grinding of the workpiece by the resin grinding plate 9.

[0050] Grinding contact pressure monitoring and lifting lock Synchronized with the clamping action, during the descent of the lifting platform 11, the moving seat 34 and the trapezoidal locking seat 33 of the locking mechanism 3 will also descend along the outer position of the platform 31. When the trapezoidal locking seat 33 is inside the trapezoidal locking groove 32 and is subjected to force, relying on its unique trapezoidal structure characteristics, the trapezoidal locking seat 33 will gradually detach from the inner wall of the trapezoidal locking groove 32 and drive the moving seat 34 into the mounting groove 38 to compress the abutment spring 36. The movable seat 34 drives the limiting block 35 to slide along the inner wall of the corresponding limiting groove 37. The movement path of the movable seat 34 is precisely limited by the cooperation between the limiting block 35 and the limiting groove 37 to avoid jamming of the locking mechanism 3. When the lifting platform 11 drives the drive mechanism 5 and the resin grinding plate 9 to descend to the predetermined position, the resin grinding plate 9 makes precise contact with the surface of the workpiece. At this time, the pressure sensor 10 installed at the bottom of the resin grinding plate 9 monitors the contact pressure value with the workpiece in real time and feeds the pressure data back to the external controller in real time. When the pressure value is detected to reach the preset rated value, the moving end of the high-precision push rod 8 immediately stops moving and maintains the current posture. Subsequently, under the elastic reset action of the abutment spring 36, the push-moving seat 34 and the trapezoidal locking seat 33 extend out from the mounting groove 38, so that the trapezoidal locking seat 33 accurately enters the corresponding trapezoidal locking groove 32, and completes the rigid locking of the lifting platform 11 position. Through the linkage design of "pressure triggering - instant locking", the contact state between the lifting platform 11 and the resin grinding plate 9 and the workpiece can be kept stable, effectively avoiding the shrinkage or displacement of the moving end of the high-precision push rod 8 due to vibration during subsequent grinding, reducing the axial load on the moving end of the push rod, extending the service life of the push rod and ensuring the stability of the grinding pressure.

[0051] Fine grinding and dynamic pressure compensation Start the drive motor 52 at the bottom of the lifting platform 11, drive gear 2 53 and gear 1 54 to mesh and transmit power. Gear 1 54 drives the drive shaft 55 to rotate stably inside the U-shaped seat 51, and at the same time drives the resin grinding plate 9 to perform fine grinding on the workpiece held at the top of the placement platform 2. During the grinding process, in conjunction with the external auxiliary agent spraying equipment, the special grinding auxiliary agent is sprayed onto the surface of the workpiece. The auxiliary agent can not only protect the grinding teeth of the resin grinding plate 9, but also play a role in cooling and lubrication, reducing the frictional heat during the grinding process and improving the gloss of the workpiece surface. As the resin grinding plate 9 continues to grind the workpiece, the impurities and uneven parts on the surface of the workpiece are gradually polished smooth. At this time, the pressure value in contact with the workpiece monitored by the pressure sensor 10 will gradually decrease, and the pressure change data will be fed back to the external controller in real time. The controller will immediately start the pressure compensation work according to the preset grinding program. By precisely controlling the moving end of the high-precision push rod 8 to slowly extend, it will further drive the lifting platform 11, the drive mechanism 5 and the resin grinding plate 9 to slowly descend, so as to achieve precise compensation of grinding pressure. During this compensation process, the lifting platform 11 drives the mounting platform 71 and the positioning frame 72 to descend synchronously, so that the reset platform 77 and the sliding platform 75 enter the interior of the mounting platform 71 to compress the reset spring 74. At the same time, the lug 76 is driven to slide smoothly along the inner wall of the lug groove 73. The lug 76 and the lug groove 73 cooperate to limit the descent path of the mounting platform 71 and the positioning frame 72, ensuring the uniformity of the contact between the resin polishing plate 9 and the workpiece surface during the compensation process. At the same time, the lifting platform 11 continues to drive the locking mechanism 3 to work in a cycle according to the above-mentioned "locking release-locking" method. When the contact pressure between the resin grinding plate 9 and the pressure sensor 10 and the workpiece reaches the preset rated value again, the trapezoidal locking seat 33 in the locking mechanism 3 accurately enters the corresponding trapezoidal locking groove 32 again to complete a new round of locking. This stage is the core innovation link addressing the shortcomings of the background technology. This solution uses a closed-loop control of "real-time pressure monitoring - dynamic compensation - precise locking" to adjust the position of the resin grinding plate 9 in real time according to the pressure changes during the workpiece grinding process. This ensures that the contact pressure between the grinding plate and the workpiece is always uniform and maintained at the rated value, effectively solving the problem of insufficient grinding accuracy caused by pressure changes in traditional devices, and greatly improving the fine grinding quality and processing consistency of the workpiece surface.

[0052] Additives recycling and cleaning protection During the grinding process, the liquid additives generated gradually slide outward from the surface of the workpiece. After flowing over the surface of the placement table 2, they fall into the annular collection tank 14 through the guiding action of the outer edge ring 15. Then, they are guided into the collection frame 13 through the guide channel 6 for unified collection. The additive recovery structure design can effectively prevent the liquid additives from overflowing, which not only keeps the processing environment clean, but also realizes the recycling and reuse of additives and reduces processing costs. In summary, this device achieves fully automated and precise control of the entire process of workpiece precision grinding through an integrated design of "synchronous linkage clamping + real-time pressure monitoring + dynamic pressure compensation + rigid locking positioning + additive recovery". The closed-loop linkage control between pressure sensor 10 and high-precision push rod 8 solves the technical pain point of traditional devices being unable to differentially adjust according to pressure changes during workpiece grinding, ensuring that the contact pressure between the resin grinding plate 9 and the workpiece remains at a rated uniform state at all times. The synchronous linkage design of lifting, clamping, and locking mechanism 3 improves the coordination and stability of the actions of each mechanism, effectively preventing workpiece shaking and deviation during grinding and ensuring grinding accuracy. The design of the additive recovery structure realizes green processing and cost saving. Ultimately, the surface of the workpiece can be stably processed and ground by the resin grinding plate 9, so that the workpiece surface is kept in a uniform and flat high-precision state, significantly improving the grinding quality and processing efficiency. This device features a targeted integrated control system that combines real-time pressure monitoring, dynamic compensation, and rigid locking. By using pressure feedback to drive the actuator to adjust in tandem, it counteracts the pressure distribution changes caused by the flattening of the workpiece, thereby achieving high-precision machining of the workpiece surface and significantly improving the grinding quality.

[0053] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A resin grinding plate precision grinding device with a differential pressure compensation mechanism, comprising a worktable (1) and a placement platform (2) installed at the center of the top wall of the worktable (1) for placing workpieces, characterized in that: The workbench (1) is equipped with a stand (4) on its rear wall. A high-precision push rod (8) is installed on the top wall of the stand (4) to control the grinding pressure and pressure compensation. The movable end of the high-precision push rod (8) slides through the stand (4) and is fixedly installed with a lifting platform (11). The bottom of the lifting platform (11) is equipped with a resin polishing plate (9) that is compatible with the position of the placement platform (2) via a drive mechanism (5). A pressure sensor (10) is installed at the center of the bottom of the resin polishing plate (9) to monitor pressure changes and to cooperate with the high-precision push rod (8) to press down for pressure compensation. Locking mechanisms (3) are installed between the outer sides of the lifting platform (11) and the worktable (1) to lock and limit the lifting path and improve the precision grinding stability of the resin grinding plate (9). A clamping assembly (7) for limiting the workpiece is installed on the rear wall of the lifting platform (11).

2. The resin grinding plate precision grinding equipment with a differential pressure compensation mechanism according to claim 1, characterized in that: The locking mechanism (3) includes a platform (31) fixedly installed on the outer wall of the upright (4). The bottom end of the platform (31) is fixedly connected to the top wall of the workbench (1). The platform (31) provides stable support for the upright (4) to prevent deformation under stress. Several trapezoidal locking grooves (32) are equidistantly provided on the side of the platform (31) near the placement platform (2). The outer wall of the lifting platform (11) is provided with an installation groove (38). Limit grooves are provided on the front and rear walls of the installation groove (38). 37) Several abutment springs (36) are evenly installed on the inner wall of the mounting groove (38). The movable ends of several abutment springs (36) located in the same mounting groove (38) are all equipped with the same movable seat (34). The movable seat (34) slides in the inner wall of the corresponding mounting groove (38). Limiting blocks (35) are installed on the front and rear walls of the movable seat (34) and at the positions corresponding to the limiting groove (37). The outer wall of the limiting block (35) is slidably connected to the inner wall of the corresponding limiting groove (37).

3. The resin grinding plate precision grinding equipment with a differential pressure compensation mechanism according to claim 2, characterized in that: The outer wall of each movable seat (34) is fixedly equipped with a trapezoidal locking seat (33) that is compatible with the trapezoidal locking groove (32). The trapezoidal locking seat (33) abuts against the inner wall of the corresponding trapezoidal locking groove (32) to limit the position of the resin polishing plate (9) after the pressure is reduced to compensate for the pressure, so as to prevent the displacement problem.

4. The resin grinding plate precision grinding equipment with a differential pressure compensation mechanism according to claim 1, characterized in that: The drive mechanism (5) includes a U-shaped seat (51) fixedly installed at the bottom of the lifting platform (11). A drive shaft (55) is rotatably installed at the center of the inner wall of the U-shaped seat (51). The bottom end of the drive shaft (55) is fixedly connected to the top end of the resin polishing plate (9) through the U-shaped seat (51) via a bearing. A gear (54) is fixedly installed on the outer wall of the drive shaft (55).

5. A resin grinding plate precision grinding device with a differential pressure compensation mechanism according to claim 1, characterized in that: The bottom wall of the lifting platform (11) and inside the U-shaped seat (51) is equipped with a drive motor (52). The drive shaft of the drive motor (52) is fixedly equipped with a gear two (53) that meshes with gear one (54). The drive motor (52) drives gear two (53) and gear one (54) to mesh and rotate slowly, thereby controlling the drive shaft (55) and the resin grinding plate (9) to perform precision grinding on the workpiece.

6. A resin grinding plate precision grinding device with a differential pressure compensation mechanism according to claim 1, characterized in that: The clamping assembly (7) includes a clamping mechanism and a control mechanism. The control mechanism includes a mounting platform (71) fixedly installed on the rear wall of the lifting platform (11). A positioning frame (72) is fixedly installed on the bottom wall of the mounting platform (71). The outer side wall of the positioning frame (72) is provided with ear grooves (73). A number of return springs (74) are evenly installed on the inner wall of the positioning frame (72). The bottom end of each return spring (74) is equipped with the same sliding platform (75).

7. A resin grinding plate precision grinding device with a differential pressure compensation mechanism according to claim 6, characterized in that: Ear blocks (76) are installed on the outer wall of the sliding platform (75) and at the position of the ear groove (73). The outer wall of the ear block (76) is slidably connected to the inner wall of the corresponding ear groove (73). A reset platform (77) adapted to the inner wall of the positioning frame (72) is installed on the bottom wall of the sliding platform (75). A triangular seat (78) is installed at the bottom end of the reset platform (77).

8. A resin grinding plate precision grinding device with a differential pressure compensation mechanism according to claim 1, characterized in that: The top wall of the workbench (1) is provided with a receiving groove (715) corresponding to the position of the triangular seat (78). An electromagnet (714) is fixedly installed on the bottom wall of the receiving groove (715) to attract and fix the triangular seat (78) to form a position limit.

9. A resin grinding plate precision grinding device with a differential pressure compensation mechanism according to claim 6, characterized in that: The clamping mechanism includes a steering shaft (79) rotatably mounted on both sides of the rear of the top wall of the worktable (1). A return coil spring (710) is installed at the bottom of each steering shaft (79), and a steering seat (712) is installed at the top of each steering shaft (79). An abutment platform (713) is installed on the side of each steering seat (712) near the triangular seat (78). The position of the abutment platform (713) is adapted to the outer wall of the triangular seat (78). An arc-shaped clamping seat (711) is fixedly installed at the front end of each abutment platform (713). An anti-slip pad is installed on the inner wall of each arc-shaped clamping seat (711) to increase the friction force in contact with the workpiece.

10. A resin grinding plate precision grinding device with a differential pressure compensation mechanism according to claim 1, characterized in that: Telescopic positioning shafts (12) are installed on both sides between the upright frame (4) and the lifting platform (11). An outer ring (15) is installed at the bottom of the outer wall of the placement platform (2). An annular collection groove (14) is opened on the top wall of the workbench (1). A guide groove (6) is opened on one side of the annular collection groove (14) and inside the workbench (1). A collection frame (13) is installed on the side wall of the workbench (1) at the position corresponding to the discharge end of the guide groove (6). The liquid additive used on the surface of the workpiece during grinding flows into the annular collection groove (14) through the placement platform (2) and the outer ring (15), and flows into the collection frame (13) through the guide groove (6) for centralized collection to prevent overflow.

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