Preparation equipment of polished section

Abstract

The invention discloses preparation equipment of a polished section, which comprises a bottom frame, a first grinding wheel assembly and a second grinding wheel assembly are arranged on the bottom frame, the first grinding wheel assembly comprises a first grinding wheel, the second grinding wheel assembly comprises a second grinding wheel, and the diameter of the first grinding wheel is larger than that of the second grinding wheel; the clamping assembly is arranged between the first grinding wheel and the second grinding wheel and used for fixing a workpiece, the clamping assembly comprises a clamping base and a clamping arm, the clamping base is fixed to the bottom frame, the clamping arm is movably connected to the clamping base, a guide piece is arranged on the clamping arm, and the guide piece can drive the clamping arm to move in the radial direction of the second grinding wheel; the fixing frame is fixedly connected with the second grinding wheel assembly, a guide groove is formed in the face, close to the second grinding wheel, of the fixing frame, a grinding shaft is arranged on the fixing frame, and a workpiece enters from the guide groove and is fixed to the grinding shaft. According to the method, the abrasion degree of the polished section in different areas is more uniform, and the overall surface quality of the polished section is improved.

Description

Technical Field

[0001] The present application relates to the field of semiconductor manufacturing technology, and in particular to a preparation device for a polishing sheet. Background Art

[0002] As modern industry's requirements for precision machining and surface treatment continue to increase, polishing pads are widely used in optical lenses, electronic components, metal products and other fields to improve the surface finish and precision. However, the prior art has several deficiencies in the preparation equipment of polishing pads, which not only limits the improvement of production efficiency, but also affects the consistency and quality of products.

[0003] In the existing polishing sheet preparation equipment, many polishing sheet preparation equipment uses a single grinding tool, which leads to inconsistent wear of different areas of the polishing sheet, and no further fine processing after grinding, making it difficult for the surface quality of the polishing sheet to meet high-precision requirements, thereby affecting the overall service life and polishing effect of the polishing sheet. In addition, due to the lack of an effective workpiece fixing and positioning mechanism, the workpiece is prone to displacement during the grinding process, resulting in scratches or uneven wear on the surface of the polishing sheet, which in turn leads to a decline in product quality. Summary of the invention

[0004] The purpose of the present application is to provide a polishing sheet preparation device to solve the technical problems of the polishing sheet preparation device in the prior art in terms of wear resistance and processing accuracy.

[0005] To achieve this goal, this application adopts the following technical solutions: A preparation device for a polishing sheet, the device comprising: A base frame, wherein a first grinding wheel assembly and a second grinding wheel assembly are arranged on the base frame, wherein the first grinding wheel assembly and the second grinding wheel assembly are arranged opposite to each other, wherein the first grinding wheel assembly comprises a first motor, a first transmission shaft and a first grinding wheel, wherein the first motor drives the first grinding wheel to rotate via the first transmission shaft, wherein the second grinding wheel assembly comprises a second motor, a second transmission shaft and a second grinding wheel, wherein the second motor drives the second grinding wheel to rotate via the second transmission shaft, wherein the diameter of the first grinding wheel is greater than the diameter of the second grinding wheel; A clamping assembly, the clamping assembly is arranged between the first grinding wheel and the second grinding wheel, and is used to fix the workpiece. The clamping assembly comprises a clamping seat and a clamping arm. The clamping seat is fixed on the base frame, and the clamping arm is movably connected to the clamping seat. The clamping arm is provided with a guide member, and the guide member can drive the clamping arm to move along the radial direction of the second grinding wheel to achieve clamping and releasing of the workpiece. A fixed frame, the fixed frame is fixedly connected to the second grinding wheel assembly, a guide groove is provided on a side of the fixed frame close to the second grinding wheel, and a grinding shaft is provided on the fixed frame, wherein the workpiece enters from the guide groove and is fixed on the grinding shaft.

[0006] Furthermore, it also includes a first cooling component, the first cooling component includes a coolant pump and a cooling nozzle, the first grinding wheel component also includes a fixed plate, the fixed plate is arranged on a side of the first grinding wheel component away from the second grinding wheel component, the fixed plate is provided with holes, the coolant pump is connected to the cooling nozzle through a pipeline, the cooling nozzle is arranged above the first grinding wheel component, and when the first grinding wheel rotates, the cooling nozzle can spray coolant onto the surface of the first grinding wheel.

[0007] Furthermore, it also includes a second cooling component, which includes a liquid storage tank and a cooling nozzle. The liquid storage tank is used to store coolant. The second cooling component is connected to the fixed frame. The liquid storage tank is connected to the cooling nozzle through a pipeline. When the second grinding wheel rotates, the cooling nozzle can spray coolant onto the surface of the second grinding wheel.

[0008] Furthermore, it also includes a track assembly, which is connected to the first cooling assembly, and the track assembly includes a track seat, a track seat and a track shaft. The track seat is fixed to a side of the first cooling assembly close to the base frame, and a track groove is provided on the track seat. The track shaft is provided in the track groove, and the first cooling assembly can slide in the track groove along the track shaft.

[0009] Furthermore, it also includes a fixed bracket, one side of which is fixedly connected to the base frame, and the other side is fixedly connected to the second grinding wheel assembly and the fixed bracket. An adjustment component is arranged in the fixed bracket, and the adjustment component includes an adjustment screw and an adjustment handwheel. The adjustment screw passes through the fixed bracket and is rotatably connected to the adjustment handwheel. By rotating the adjustment handwheel, the adjustment screw can be moved axially to adjust the relative distance between the first grinding wheel assembly and the second grinding wheel assembly.

[0010] Furthermore, it also includes a drainage component, which is arranged at the bottom of the base frame and includes a drainage pipe and a drainage pump. A circulation channel is arranged inside the base frame, the drainage pump is arranged at the end of the circulation channel, and the drainage pipe is connected to the circulation channel for discharging the used coolant.

[0011] Furthermore, it also includes a driving component, which is connected to the grinding shaft. The driving component includes a driving motor and a transmission wheel. The driving motor is arranged on one side of the fixed frame. The transmission wheel is rotationally connected to the driving motor. The transmission wheel is connected to the grinding shaft. When the driving motor is started, the grinding shaft can drive the workpiece to rotate through the drive of the driving motor.

[0012] Furthermore, it also includes a unloading assembly, which is arranged on a side of the fixed frame away from the second grinding wheel assembly, and includes a unloading arm and a unloading clamp. The unloading arm is movably connected to the fixed frame, and the unloading clamp is arranged at the end of the unloading arm. The unloading clamp can clamp and release the workpiece.

[0013] Furthermore, limiting blocks are arranged on opposite sides of the grinding shaft, the limiting blocks are fixed on opposite sides of the grinding shaft, a plurality of limiting holes are arranged on the surface of the limiting blocks, and the limiting holes are used to locate the position of the workpiece on the grinding shaft.

[0014] Furthermore, the second cooling assembly also includes a speed adjustment mechanism, which is arranged on a side of the liquid storage tank away from the second grinding wheel, and includes a spiral rod and an adjustment knob. The first section of the spiral rod is connected to the cooling nozzle, and the other end passes through the side wall of the liquid storage tank and is rotatably connected to the adjustment knob. By rotating the adjustment knob, the spiral rod can be moved axially, thereby adjusting the injection speed of the cooling nozzle.

[0015] Compared with the prior art, this application has the following beneficial effects: The present application adopts a double grinding wheel design to make the wear degree of the polishing sheet in different areas more uniform, thereby improving the overall surface quality of the polishing sheet. The relative arrangement of the first grinding wheel assembly and the second grinding wheel assembly enables the workpiece to be processed more finely during the grinding process, meeting the high-precision requirements. In addition, the guide member of the clamping assembly drives the clamping arm to move along the radial direction of the second grinding wheel, and the workpiece enters the fixed frame from the guide groove on the second grinding wheel, and is finely ground through the grinding shaft, thereby achieving precise clamping and release of the workpiece, effectively avoiding the displacement of the workpiece during the grinding process, thereby reducing the occurrence of scratches or uneven wear on the surface of the polishing sheet, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0018] Figure 1 It is a schematic diagram of the overall structure of the equipment for preparing the polishing sheet; Figure 2 A rear structural schematic diagram of a polishing sheet preparation device; Figure 3 A schematic diagram of the top view of the structure of a polishing sheet preparation device; Figure 4 A schematic diagram of the structure of a fixing frame of an embodiment of a polishing sheet preparation device; Figure 5 This is a schematic structural diagram of the second cooling component of an embodiment of a polishing sheet preparation device.

[0019] Illustration Description: 1. Base frame; 21. First motor; 22. First transmission shaft; 23. First grinding wheel; 24. Second motor; 25. Second transmission shaft; 26. Second grinding wheel; 27. Grinding shaft; 28. Limit block; 281. Limit hole; 31. Clamping seat; 32. Clamping arm; 321. Guide; 4. Fixed frame; 41. Guide groove; 51. First cooling assembly; 511. Coolant pump; 512. Cooling nozzle; 52. Second cooling assembly; 521. Liquid storage tank; 53. Fixed plate; 531. Hole; 54. Track seat; 541. Track groove; 55. Track shaft; 61. Fixed bracket; 621. Adjustment assembly; 7. Drainage assembly; 8. Drive assembly; 91. Speed ​​adjustment mechanism. DETAILED DESCRIPTION

[0020] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0022] The technical solution of the present application is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0023] Reference Figures 1 to 5 In one embodiment, a polishing sheet preparation device includes: a base frame 1, on which a first grinding wheel assembly and a second grinding wheel assembly are arranged, the first grinding wheel assembly and the second grinding wheel assembly are arranged opposite to each other, the first grinding wheel assembly includes a first motor 21, a first transmission shaft 22 and a first grinding wheel 23, the first motor 21 drives the first grinding wheel 23 to rotate through the first transmission shaft 22, the second grinding wheel assembly includes a second motor 24, a second transmission shaft 25 and a second grinding wheel 26, the second motor 24 drives the second grinding wheel 26 to rotate through the second transmission shaft 25, wherein the diameter of the first grinding wheel 23 is greater than the diameter of the second grinding wheel 26; a clamping assembly, the clamping assembly is arranged on the first grinding wheel The wheel 23 and the second grinding wheel 26 are used to fix the workpiece, and the clamping assembly includes a clamping seat 31 and a clamping arm 32. The clamping seat 31 is fixed on the base frame 1, and the clamping arm 32 can be movably connected to the clamping seat 31. The clamping arm 32 is provided with a guide member 321, and the guide member 321 can drive the holding arm to move along the radial direction of the second grinding wheel 26 to achieve clamping and releasing of the workpiece; a fixed frame 4, the fixed frame 4 is fixedly connected to the second grinding wheel assembly, and a guide groove 41 is provided on a side of the fixed frame 4 close to the second grinding wheel 26, and a grinding shaft 27 is provided on the fixed frame 4, wherein the workpiece enters from the guide groove 41 and is fixed on the grinding shaft 27.

[0024] In the above embodiment, by adopting a double grinding wheel design, the wear degree of the polishing sheet in different areas is more uniform, thereby improving the overall surface quality of the polishing sheet, and the relative arrangement of the first grinding wheel assembly and the second grinding wheel assembly enables the workpiece to be processed more finely during the grinding process, meeting the high-precision requirements. In addition, the guide member 321 of the clamping assembly drives the clamping arm 32 to move along the radial direction of the second grinding wheel 26, and the workpiece enters the fixed frame 4 from the guide groove 41 on the second grinding wheel 26, and is finely ground through the grinding shaft 27, thereby achieving accurate clamping and release of the workpiece, effectively avoiding the displacement of the workpiece during the grinding process, thereby reducing the occurrence of scratches or uneven wear on the surface of the polishing sheet, and improving product quality.

[0025] In a specific embodiment, the workpiece to be polished is first fixed between the first grinding wheel 23 and the second grinding wheel 26 by a clamping assembly, and the workpiece is precisely clamped by the movement of the clamping arm 32. After the clamping is completed, the workpiece is fixed between the first grinding wheel 23 and the second grinding wheel 26, so that the workpiece will not be displaced during the preparation process, and the first motor 21 and the second motor 24 are started to rotate the first grinding wheel 23 and the second grinding wheel 26 at a predetermined speed, respectively, wherein the diameter of the first grinding wheel 23 is greater than the diameter of the second grinding wheel 26, but the friction area between the first grinding wheel 23 and the second grinding wheel 26 and the workpiece is the same, so that the surface of the workpiece is uniformly stressed, and the second grinding wheel 26 rotates more times because of its smaller diameter, and the clamping arm 32 drives the guide 321 to move the workpiece in the direction of rotation of the second grinding wheel 26, and when the workpiece reaches the fixed frame 4, it is guided by the guide groove 41 to move away from the second grinding wheel 26 and enter the fixed frame 4, and is finely polished by the grinding shaft 27.

[0026] It is worth noting that the two grinding wheels are provided in this embodiment in order to obtain a more uniform and fine surface quality of the workpiece between the two grinding wheels. The specific principle is that compared with a single preparation device, this embodiment can grind both sides at the same time, thereby improving the preparation efficiency and quality. In another embodiment, the setting of the two grinding wheels can be further optimized to adapt to workpieces of different materials and shapes. For example, the first grinding wheel 23 and the second grinding wheel 26 can use abrasives of different materials to adapt to workpiece surfaces of different hardness and roughness. The first grinding wheel 23 can use harder abrasives to quickly remove excess material on the workpiece surface; while the second grinding wheel 26 can use softer abrasives to achieve fine grinding of the workpiece surface. Specifically, the clamping arm 32 in the clamping assembly can rotate the workpiece. After the workpiece is roughly processed by the first grinding wheel 23, the workpiece is rotated by the clamping arm 32 and polished by the second grinding wheel 26, and then the final fine grinding is performed by the grinding shaft 27, thereby achieving high-precision grinding of the workpiece surface, so that the polishing sheet produced has excellent surface finish and uniformity.

[0027] In another embodiment, the device can also be equipped with an automatic control system, which monitors the polishing state of the workpiece in real time through sensors, and automatically adjusts the rotation speed of the grinding wheel and the position of the clamping arm 32 to achieve intelligent and automated production, which not only improves production efficiency, but also ensures the consistency and reliability of the polishing sheet. Specifically, a sensor is installed on the clamping assembly to monitor the clamping state and position of the workpiece in real time to ensure that the workpiece remains stable during the grinding process. At the same time, the rotation speed and pressure of the grinding wheel assembly can also be dynamically adjusted according to the real-time feedback of the workpiece to achieve the best polishing effect.

[0028] In one embodiment, a first cooling component 51 is further included, and the first cooling component 51 includes a coolant pump 511 and a cooling nozzle 512. The first grinding wheel component also includes a fixing plate 53. The fixing plate 53 is arranged on a side of the first grinding wheel component away from the second grinding wheel component. A hole 531 is arranged on the fixing plate 53. The coolant pump 511 is connected to the cooling nozzle 512 through a pipeline. The cooling nozzle 512 is arranged above the first grinding wheel component. When the first grinding wheel 23 rotates, the cooling nozzle 512 can spray coolant onto the surface of the first grinding wheel 23.

[0029] In this embodiment, first, holes 531 are provided on the fixing plate 53, and these holes 531 are distributed on the fixing plate 53 to ensure that the coolant can be evenly sprayed on the surface of the first grinding wheel 23. When the first grinding wheel 23 rotates, the first cooling assembly 51 includes a coolant pump 511 and a cooling nozzle 512 to ensure that the heat generated by the grinding wheel during high-speed operation can be quickly taken away. The coolant pump 511 extracts the coolant from the liquid storage tank 521 and transports it to the cooling nozzle 512 through a pipeline. The cooling nozzle 512 sprays the coolant on the surface of the first grinding wheel 23 through the holes 531, so that the coolant can cover the entire surface of the grinding wheel. The spraying of the coolant can not only effectively reduce the temperature of the grinding wheel surface and prevent the grinding wheel from being deformed or damaged due to high temperature, but also reduce the influence of the heat generated during the grinding process on the workpiece, thereby improving the polishing quality of the workpiece.

[0030] In one embodiment, a second cooling component 52 is further included, and the second cooling component 52 includes a liquid storage tank 521 and a cooling nozzle. The liquid storage tank 521 is used to store coolant. The second cooling component 52 is connected to the fixed frame 4. The liquid storage tank 521 is connected to the cooling nozzle through a pipeline. When the second grinding wheel 26 rotates, the cooling nozzle can spray coolant onto the surface of the second grinding wheel 26.

[0031] In this embodiment, the second cooling assembly 52 enables the second grinding wheel 26 to be effectively cooled during the grinding process. The coolant stored in the liquid storage tank 521 is transported to the cooling nozzle through a pipeline. When the second grinding wheel 26 rotates, the cooling nozzle sprays the coolant onto the surface of the second grinding wheel 26. Since the diameter of the second grinding wheel 26 is small, its surface temperature rises quickly. Therefore, the second cooling assembly 52 needs to be provided with a liquid storage tank 521. The spraying of the coolant can not only effectively reduce the surface temperature of the second grinding wheel 26 and prevent the grinding wheel from being deformed or damaged due to high temperature, but also reduce the influence of the heat generated during the grinding process on the workpiece, thereby improving the polishing quality of the workpiece. In another embodiment, the cooling nozzle of the second cooling assembly 52 is adjustable in direction and flow to meet the grinding requirements of different workpieces. During the grinding process, the angle of the cooling nozzle and the flow of the coolant can be adjusted according to the material and polishing degree of the workpiece to ensure that the cooling effect is optimal. In practical applications, the first cooling component 51 and the second cooling component 52 work together to keep the entire polishing sheet preparation device at a relatively low temperature during the grinding process, thereby extending the service life of the grinding wheel and keeping the temperature of the grinding wheel and the workpiece within a reasonable range during the entire grinding process. This dual cooling system design can effectively avoid workpiece deformation or uneven grinding wheel wear caused by excessive temperature, thereby further improving the surface quality and service life of the polishing sheet.

[0032] In one embodiment, a track assembly is further included, and the track assembly is connected to the first cooling assembly 51. The track assembly includes a track seat 54, a track seat 54 and a track shaft 55. The track seat 54 is fixed to a side of the first cooling assembly 51 close to the base frame 1. A track groove 541 is provided on the track seat 54. The track shaft 55 is provided in the track groove 541. The first cooling assembly 51 can slide in the track groove 541 along the track shaft 55.

[0033] In this embodiment, the track assembly enables the first cooling assembly 51 to have higher flexibility and operability during the cooling process. The track seat 54 is fixed to one side of the base frame 1, providing a stable support platform for the first cooling assembly 51. The track groove 541 is set on the track seat 54, and the track shaft 55 is installed in the track groove 541. The first cooling assembly 51 can be moved along the track groove 541 through a rolling or sliding mechanism. During the grinding process, as the workpiece moves and the first grinding wheel 23 rotates, the first cooling assembly 51 can slide in the track groove 541 along the track shaft 55, ensuring that the cooling nozzle 512 is always aligned with the surface of the first grinding wheel 23, thereby achieving continuous and uniform coolant injection, which not only improves the cooling efficiency, but also ensures the accuracy and stability of cooling, thereby further improving the quality of the polishing sheet.

[0034] In one embodiment, a fixed bracket 61 is further included, one side of the fixed bracket 61 is fixedly connected to the base frame 1, and the other side is fixedly connected to the second grinding wheel assembly and the fixed bracket 4. An adjustment component 621 is arranged in the fixed bracket 61, and the adjustment component 621 includes an adjustment screw and an adjustment handwheel. The adjustment screw passes through the fixed bracket 61 and is rotatably connected to the adjustment handwheel. By rotating the adjustment handwheel, the adjustment screw can be moved axially to adjust the relative distance between the first grinding wheel assembly and the second grinding wheel assembly.

[0035] In this embodiment, the fixed bracket 61 is connected to the base frame 1 and the second grinding wheel assembly and the fixed frame 4, and the adjustment assembly 621 allows the relative distance between the first grinding wheel assembly and the second grinding wheel assembly to be flexibly adjusted to adapt to workpieces of different sizes and shapes. The adjustment screw passes through the fixed bracket 61 and is rotated by the adjustment hand wheel to achieve axial movement of the adjustment screw. By rotating the adjustment hand wheel, the distance between the first grinding wheel assembly and the second grinding wheel assembly can be adjusted to ensure that the workpiece can be evenly processed during the grinding process. In another embodiment, a monitoring system is also included, and the monitoring system includes a temperature sensor and a pressure sensor. The temperature sensor is arranged on the surface of the first grinding wheel 23 and the second grinding wheel 26, and the pressure sensor is arranged on the clamping assembly. The monitoring system can monitor the temperature of the grinding wheel and the clamping pressure of the workpiece in real time. When the temperature or pressure exceeds the preset range, an alarm is automatically issued and relevant parameters are adjusted to ensure the safety and stability of the grinding process.

[0036] In one embodiment, a drainage component 7 is further included. The drainage component 7 is arranged at the bottom of the base frame 1, and includes a drainage pipe and a drainage pump. A circulation channel is arranged inside the base frame 1. The drainage pump is arranged at the end of the circulation channel. The drainage pipe is connected to the circulation channel for discharging the used coolant.

[0037] In this embodiment, the drainage component 7 allows the coolant to be recycled and the equipment to be cleaned and maintained. After the coolant is sprayed on the surface of the grinding wheel, part of the coolant will flow into the interior of the chassis 1 along with the dust and debris in the grinding process. The chassis 1 is provided with a circulation channel, which guides the coolant to the drain pipe, and the drain pipe is connected to the drainage pump. After the equipment has been running for a period of time, a certain amount of impurities and debris may accumulate in the coolant. The drainage pump is started to extract the coolant and the impurities together and discharge them through the drain pipe. The start of the drainage pump can be controlled by a timer or by the feedback signal of the temperature sensor and the pressure sensor in the monitoring system. The discharged coolant can be reused after filtering and purification, or replaced as needed to ensure the cleanliness and cooling effect of the coolant. The design of the drainage component 7 not only improves the utilization rate of the coolant and reduces the waste of resources, but also ensures the cleanliness of the interior of the equipment and avoids the pollution of the coolant and the possible corrosion to the equipment. In addition, the setting of the drainage component 7 also facilitates the maintenance and maintenance of the equipment and prolongs the service life of the equipment. In actual applications, the operation of the drainage component 7 and the coordinated work of the cooling system enable the entire polishing sheet preparation equipment to maintain efficient cooling while also having good environmental performance. The coolant can be recycled to reduce production costs and reduce the impact on the environment, which meets the requirements of modern industrial production for sustainable development.

[0038] In one embodiment, a driving assembly 8 is further included, and the driving assembly 8 is connected to the grinding shaft 27. The driving assembly 8 includes a driving motor and a transmission wheel. The driving motor is arranged on one side of the fixing frame 4, and the transmission wheel is rotationally connected to the driving motor. The transmission wheel is connected to the grinding shaft 27. When the driving motor is started, the grinding shaft 27 can drive the workpiece to rotate through the drive of the driving motor.

[0039] In the present embodiment, the drive assembly 8 is connected to the grinding shaft 27, and the drive assembly 8 includes a drive motor and a transmission wheel. The transmission wheel is connected to the drive motor to enable the stable rotation of the grinding shaft 27. The drive motor serves as a power source so that the workpiece can obtain a uniform and stable rotation speed during the fine grinding process. The connection between the transmission wheel and the drive motor transmits power to the grinding shaft 27 through a transmission mechanism such as a transmission belt or a gear, thereby realizing the rotation of the workpiece. In the present embodiment, the power and rotation speed of the drive motor can be selected and adjusted according to the material, size and fine grinding requirements of the workpiece. By adjusting the rotation speed of the drive motor, the rotation speed of the workpiece can be controlled, thereby realizing fine control of the fine grinding effect. The drive motor can also be provided with a frequency converter or a speed regulating device, and the rotation speed of the workpiece can be adjusted according to actual needs to adapt to different polishing process requirements.

[0040] In one embodiment, a material unloading assembly is further included, which is arranged on a side of the fixed frame 4 away from the second grinding wheel assembly, and includes a material unloading arm and a material unloading fixture. The material unloading arm is movably connected to the fixed frame 4, and the material unloading fixture is arranged at the end of the material unloading arm. The material unloading fixture can clamp and release the workpiece.

[0041] In this embodiment, the design of the unloading assembly is intended to realize the automatic unloading of the workpiece, improve production efficiency and reduce manual operation. The unloading arm is fixed on the fixed frame 4 and moves freely within a certain range. The unloading fixture is located at the end of the unloading arm and has the function of clamping and releasing the workpiece. After the grinding and polishing process is completed, the unloading fixture can automatically clamp the processed workpiece and move it to a designated position for unloading. In another embodiment, the unloading clamp is provided with a sensing device, such as a proximity switch or a photoelectric sensor, for detecting whether the workpiece is in place and triggering the clamping action. In addition, the movement of the unloading arm can be controlled by a servo motor or a stepper motor, and can be accurately positioned above the workpiece during the unloading process, thereby achieving fast and accurate unloading. In practical applications, the unloading assembly can be integrated with the control system of the entire polishing sheet preparation equipment, and synchronization with other process steps such as grinding and cooling can be achieved through program control. For example, after the workpiece is polished, the cooling system stops spraying coolant, the drive assembly 8 stops rotating the workpiece, and the unloading fixture immediately moves to the top of the workpiece and clamps the workpiece, and then moves the workpiece to the unloading area and releases it. The whole process does not require manual intervention, which greatly improves production efficiency and automation level.

[0042] In one embodiment, limit blocks 28 are provided on opposite sides of the grinding shaft 27 , and the limit blocks 28 are fixed on opposite sides of the grinding shaft 27 . A plurality of limit holes 281 are provided on the surface of the limit blocks 28 , and the limit holes 281 are used to locate the position of the workpiece on the grinding shaft 27 .

[0043] In this embodiment, the limit block 28 fixes the position of the workpiece during the fine grinding process, thereby improving the processing accuracy and repeatability. The limit block 28 is fixed on the opposite sides of the grinding shaft 27, and a plurality of limit holes 281 are provided on its surface. These limit holes 281 can be selected and used according to workpieces of different sizes and shapes. When the workpiece is clamped, the position of the workpiece on the grinding shaft 27 can be quickly and accurately positioned by adjusting the cooperation between the workpiece and the limit hole 281. The setting of the limit block 28 not only simplifies the positioning process of the workpiece, but also reduces the labor intensity of the operator and improves the production efficiency. In another embodiment, a sensing device, such as a proximity switch or a photoelectric sensor, is also provided on the surface of the limit block 28 to detect whether the workpiece is correctly positioned in the limit hole 281. When the workpiece is not correctly placed, an alarm is automatically issued and adjustments are made to ensure the smooth progress of the processing process and improve the processing accuracy.

[0044] In one embodiment, the second cooling assembly 52 further includes a speed adjustment mechanism 91, which is disposed on a side of the liquid storage tank 521 away from the second grinding wheel 26, and includes a spiral rod and an adjustment knob. The first section of the spiral rod is connected to the cooling nozzle, and the other end passes through the side wall of the liquid storage tank 521 and is rotatably connected to the adjustment knob. By rotating the adjustment knob, the spiral rod can be moved axially, thereby adjusting the injection speed of the cooling nozzle.

[0045] In this embodiment, the speed adjustment mechanism 91 is intended to achieve precise control of the spray speed of the cooling nozzle to meet the cooling requirements of different workpieces and processing conditions. The spiral rod is connected to the cooling nozzle, one end of which is fixed on the side wall of the liquid storage tank 521, and the other end is controlled by an adjustment knob. The adjustment knob is located on the side of the liquid storage tank 521 away from the second grinding wheel 26. By rotating the adjustment knob, the spiral rod moves axially, thereby changing the distance between the cooling nozzle and the workpiece, thereby adjusting the spray speed and flow rate of the coolant. In practical applications, the operator can adjust the spray speed of the cooling nozzle by rotating the adjustment knob according to the material and thickness of the workpiece and the temperature change during the grinding process. For example, when grinding a thicker workpiece or a workpiece with poor thermal conductivity, it may be necessary to increase the spray speed of the coolant to improve the cooling effect; while when grinding a thinner workpiece or a workpiece with good thermal conductivity, it may be necessary to reduce the spray speed to avoid cracks or deformation of the workpiece due to excessive cooling. In another embodiment, the speed adjustment mechanism 91 can be combined with the feedback signals of the temperature sensor and the pressure sensor to achieve automatic adjustment. When it is detected that the surface temperature of the workpiece is too high, the spray speed of the coolant is automatically increased; conversely, when the surface temperature of the workpiece is appropriate, the system automatically reduces the spray speed to achieve the best cooling effect and energy saving. Through this flexible speed adjustment mechanism, the second cooling component 52 can not only meet the cooling needs of different workpieces, but also effectively control the amount of coolant used, reduce resource waste, and ensure the stable operation of the equipment and the processing quality of the workpiece.

[0046] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A polishing sheet preparation device, characterized in that: Equipment includes: A base frame, wherein a first grinding wheel assembly and a second grinding wheel assembly are arranged on the base frame, wherein the first grinding wheel assembly and the second grinding wheel assembly are arranged opposite to each other, wherein the first grinding wheel assembly comprises a first motor, a first transmission shaft and a first grinding wheel, wherein the first motor drives the first grinding wheel to rotate via the first transmission shaft, wherein the second grinding wheel assembly comprises a second motor, a second transmission shaft and a second grinding wheel, wherein the second motor drives the second grinding wheel to rotate via the second transmission shaft, wherein the diameter of the first grinding wheel is greater than the diameter of the second grinding wheel; A clamping assembly, the clamping assembly is arranged between the first grinding wheel and the second grinding wheel, and is used to fix the workpiece. The clamping assembly comprises a clamping seat and a clamping arm. The clamping seat is fixed on the base frame, and the clamping arm is movably connected to the clamping seat. The clamping arm is provided with a guide member, and the guide member can drive the clamping arm to move along the radial direction of the second grinding wheel to achieve clamping and releasing of the workpiece. A fixed frame, the fixed frame is fixedly connected to the second grinding wheel assembly, a guide groove is provided on a side of the fixed frame close to the second grinding wheel, and a grinding shaft is provided on the fixed frame, wherein the workpiece enters from the guide groove and is fixed on the grinding shaft.

2. The polishing sheet preparation device according to claim 1, characterized in that: It also includes a first cooling component, which includes a coolant pump and a cooling nozzle. The first grinding wheel component also includes a fixed plate, which is arranged on a side of the first grinding wheel component away from the second grinding wheel component. The fixed plate is provided with holes. The coolant pump is connected to the cooling nozzle through a pipeline. The cooling nozzle is arranged above the first grinding wheel component. When the first grinding wheel rotates, the cooling nozzle can spray coolant onto the surface of the first grinding wheel.

3. The preparation device of the polishing sheet according to claim 1, characterized in that: It also includes a second cooling component, which includes a liquid storage tank and a cooling nozzle. The liquid storage tank is used to store coolant. The second cooling component is connected to the fixed frame. The liquid storage tank is connected to the cooling nozzle through a pipeline. When the second grinding wheel rotates, the cooling nozzle can spray coolant onto the surface of the second grinding wheel.

4. The preparation device of the polishing sheet according to claim 2, characterized in that: It also includes a track assembly, which is connected to the first cooling assembly. The track assembly includes a track seat, a track seat and a track shaft. The track seat is fixed to a side of the first cooling assembly close to the base frame. The track seat is provided with a track groove, and the track shaft is provided in the track groove. The first cooling assembly can slide in the track groove along the track shaft.

5. The polishing sheet preparation device according to claim 1, characterized in that: It also includes a fixed bracket, one side of which is fixedly connected to the base frame, and the other side is fixedly connected to the second grinding wheel assembly and the fixed bracket. An adjustment assembly is arranged in the fixed bracket, and the adjustment assembly includes an adjustment screw and an adjustment handwheel. The adjustment screw passes through the fixed bracket and is rotatably connected to the adjustment handwheel. By rotating the adjustment handwheel, the adjustment screw can be moved axially to adjust the relative distance between the first grinding wheel assembly and the second grinding wheel assembly.

6. The polishing sheet preparation device according to claim 1, characterized in that: It also includes a drainage component, which is arranged at the bottom of the base frame and includes a drainage pipe and a drainage pump. A circulation channel is arranged inside the base frame, the drainage pump is arranged at the end of the circulation channel, and the drainage pipe is connected to the circulation channel for discharging the used coolant.

7. The polishing sheet preparation device according to claim 1, characterized in that: It also includes a driving assembly, which is connected to the grinding shaft. The driving assembly includes a driving motor and a transmission wheel. The driving motor is arranged on one side of the fixed frame. The transmission wheel is rotationally connected to the driving motor. The transmission wheel is connected to the grinding shaft. When the driving motor is started, the grinding shaft can drive the workpiece to rotate through the drive of the driving motor.

8. The polishing sheet preparation device according to claim 1, characterized in that: It also includes a material unloading component, which is arranged on a side of the fixed frame away from the second grinding wheel assembly, and includes a material unloading arm and a material unloading clamp. The material unloading arm is movably connected to the fixed frame, and the material unloading clamp is arranged at the end of the material unloading arm. The material unloading clamp can clamp and release the workpiece.

9. The polishing sheet preparation device according to claim 1, characterized in that: Limit blocks are arranged on opposite sides of the grinding shaft, the limit blocks are fixed on opposite sides of the grinding shaft, a plurality of limit holes are arranged on the surface of the limit blocks, and the limit holes are used to locate the position of the workpiece on the grinding shaft.

10. The polishing sheet manufacturing device according to claim 3, characterized in that: The second cooling assembly also includes a speed adjustment mechanism, which is arranged on a side of the liquid storage tank away from the second grinding wheel, and includes a spiral rod and an adjustment knob. The first section of the spiral rod is connected to the cooling nozzle, and the other end passes through the side wall of the liquid storage tank and is rotatably connected to the adjustment knob. By rotating the adjustment knob, the spiral rod can be moved axially, thereby adjusting the injection speed of the cooling nozzle.

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