Adjustable pressure plate mechanism
By designing an adjustable pressure grinding disc mechanism and using a pressure-regulating cylinder to drive the mounting bracket to move, the problems of polishing pressure and grinding fluid supply were solved, thus achieving stability in polishing quality and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-14
AI Technical Summary
The existing polishing machine lacks a pressure regulating structure on the grinding disc, which makes it impossible to adjust the polishing pressure in real time according to the characteristics of the workpiece, affecting the consistency and stability of the polishing quality; and it cannot automatically adjust the supply of polishing fluid according to pressure changes, resulting in problems such as local overheating and grinding debris accumulation.
Design an adjustable pressure grinding disc mechanism, which uses a pressure regulating cylinder to drive the mounting bracket to move vertically, thereby realizing real-time adjustment of polishing pressure. It also uses a drip tube to supply liquid precisely, and combines rubber pads and studs to ensure uniform force and stability.
It enables precise adjustment of polishing pressure according to workpiece characteristics, improving polishing quality and efficiency, avoiding local overheating and debris accumulation, and extending equipment life.
Smart Images
Figure CN224488701U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of polishing equipment, and in particular to an adjustable pressure grinding disc mechanism. Background Technology
[0002] In the fields of machining and surface treatment, polishing machines, as a key piece of equipment, are widely used for the surface finishing of various materials. Their purpose is to improve the smoothness and gloss of material surfaces to meet the high standards of surface quality required by different industrial products. The working principle of a polishing machine is mainly based on the relative movement between the upper and lower grinding discs or the workpiece support platform, combined with the grinding fluid, to rub and cut the workpiece surface, thereby achieving the purpose of removing surface defects and improving surface quality.
[0003] In traditional polishing machine designs, the upper grinding disc typically employs a rigid structure, and the pressure between it and the lower grinding disc is primarily set and maintained by the preload of a mechanical device. This fixed pressure setting method has significant limitations when dealing with workpieces of different materials, shapes, and processing requirements.
[0004] On the one hand, existing upper grinding discs typically lack a pressure adjustment mechanism. In actual polishing processes, different workpieces require different polishing pressures. For example, for materials with low hardness, excessive pressure may lead to excessive wear or even damage to the workpiece surface; while for materials with high hardness, insufficient pressure may fail to effectively remove surface imperfections, affecting polishing quality. Due to the lack of a pressure adjustment mechanism, operators cannot adjust the pressure of the upper grinding disc in real time according to the specific characteristics of the workpiece, and can only rely on experience to make rough estimates and settings. This undoubtedly increases the uncertainty of the polishing process, making it difficult to guarantee the consistency and stability of polishing quality.
[0005] On the other hand, existing upper grinding discs cannot increase the amount of polishing fluid according to pressure changes. As the polishing process progresses, the pressure between the upper grinding disc and the workpiece may change. When the pressure increases, the friction also increases accordingly, requiring more polishing fluid to remove heat and wear debris in time to ensure the smooth progress of the polishing process. However, existing upper grinding disc designs cannot sense pressure changes, nor can they automatically adjust the supply of polishing fluid based on pressure variations. This leads to insufficient polishing fluid supply when the pressure increases, easily causing problems such as localized overheating and wear debris accumulation, which in turn affects the polishing quality and shortens the service life of the polishing tools.
[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] This application provides an adjustable pressure grinding disc mechanism, which can solve the problem of how to adjust the polishing pressure and increase the polishing fluid according to the polishing pressure in the prior art.
[0009] (II) Technical Solution
[0010] To solve the above-mentioned technical problems, this application provides the following technical solution:
[0011] An adjustable pressure grinding disc mechanism is provided, the adjustable pressure grinding disc mechanism comprising:
[0012] Support cantilever;
[0013] Mounting bracket, which is vertically movable and mounted on the supporting cantilever;
[0014] A pressure regulating drive mechanism is fixedly mounted on the support cantilever and connected to the mounting frame, used to drive the mounting frame to move vertically;
[0015] The upper grinding disc is disposed on the mounting frame, and the upper grinding disc has a clearance hole that runs vertically through the middle.
[0016] A drip tube is provided on the mounting bracket and is positioned toward the clearance hole.
[0017] According to one aspect of the technical solution disclosed herein, the supporting cantilever serves as the basic load-bearing and positioning component, providing a stable installation reference for the entire mechanism; the mounting frame carries the upper grinding disc and the drip tube, achieving pressure adjustment through vertical movement and transmitting pressure to the upper grinding disc; the pressure regulating drive mechanism serves as the power source, providing vertical movement power to the mounting frame to achieve polishing pressure adjustment; the upper grinding disc serves as the polishing execution surface, and its clearance hole provides an internal liquid supply channel; the drip tube serves as the end of the polishing slurry delivery, precisely guiding the polishing slurry into the clearance hole. After the mechanism is installed, the lifting mechanism of the polishing machine drives the supporting cantilever to descend, causing the upper grinding disc to contact the workpiece at a set pressure for polishing; during polishing, the pressure regulating drive mechanism can drive the mounting frame to descend, adjusting the polishing pressure in real time, while the polishing slurry flows through the drip tube and clearance hole to the center of the polishing area. After polishing, the mechanism is raised, stopping the liquid supply. This mechanism solves the problems of traditional upper grinding discs being unable to adjust pressure and insufficient liquid supply.
[0018] According to at least one embodiment of the adjustable pressure grinding disc mechanism of this disclosure, the pressure regulating drive mechanism is a pressure regulating cylinder, the pressure regulating cylinder is fixedly mounted on the support cantilever, and the piston rod of the pressure regulating cylinder is connected to the mounting bracket.
[0019] According to the technical solution of this embodiment, the pressure regulating drive mechanism is specifically designed as a pressure regulating cylinder. The pressure regulating cylinder has advantages such as simple structure, fast response speed, high control precision, and relatively low cost. Fixedly mounted on the support cantilever with the piston rod connected to the mounting bracket, this design allows the pressure regulating cylinder to stably and reliably provide vertical driving force to the mounting bracket, achieving precise vertical movement of the upper grinding disc. This allows for accurate adjustment of the polishing pressure, meeting the diverse pressure requirements of different workpieces and polishing processes, and improving polishing quality and efficiency.
[0020] According to at least one embodiment of the adjustable pressure grinding disc mechanism of this disclosure, the supporting cantilever is provided with a vertically penetrating relief groove, and a mounting cover is fixedly provided above the relief groove; the pressure regulating cylinder is fixedly installed on the inner wall of the mounting cover and passes through the relief groove.
[0021] According to the technical solution of this embodiment, the clearance groove provides space for the installation and movement of the pressure regulating cylinder, avoiding structural interference; on the other hand, the mounting cover can protect the pressure regulating cylinder, preventing external dust, debris and other objects from entering and affecting its normal operation, while making the structure of the entire mechanism more compact and reasonable, improving the stability and reliability of the mechanism, and extending the service life of the pressure regulating cylinder.
[0022] According to at least one embodiment of the adjustable pressure grinding disc mechanism of this disclosure, the mounting bracket is provided with a mounting groove, the inner wall of the mounting groove is provided with a support step, the bottom of the piston rod is provided with a pressure balancing device, the pressure balancing device is disposed on the support step, and a locking member is fixedly provided at the top of the mounting groove, the locking member preventing the pressure balancing device from disengaging from the mounting groove.
[0023] According to the technical solution of this embodiment, the pressure balancing device enables the piston rod to apply more uniform and stable pressure to the mounting bracket, avoiding uneven polishing quality caused by excessive or insufficient local pressure. The locking component ensures the stable fixation of the pressure balancing device in the mounting groove, preventing it from loosening or disengaging during operation, thus guaranteeing the stability and reliability of the entire pressure regulating drive system and improving the stability and polishing quality of the polishing process.
[0024] According to at least one embodiment of the adjustable pressure grinding disc mechanism of this disclosure, the pressure balancing device is a rubber pad.
[0025] According to the technical solution of this embodiment, the pressure transmission process is optimized by using a rubber pad to balance the pressure applied by the piston rod to the mounting bracket, so that the mounting bracket is subjected to uniform force.
[0026] According to at least one embodiment of the adjustable pressure grinding disc mechanism of this disclosure, the mounting bracket is connected to the upper grinding disc by a plurality of studs, each stud being arranged around the clearance hole.
[0027] According to the technical solution of this embodiment, the studs arranged around the clearance hole can make the upper grinding disc more evenly stressed when subjected to the force applied by the pressure regulating drive mechanism, avoiding deformation or damage to the upper grinding disc due to uneven local stress, thereby ensuring the stability and quality of the polishing process. At the same time, this connection method also facilitates the disassembly and replacement of the upper grinding disc, improving the maintainability of the equipment.
[0028] According to at least one embodiment of the adjustable pressure grinding disc mechanism of this disclosure, the upper end of the drip tube is provided with a threaded joint, which is exposed outside the mounting bracket.
[0029] According to the technical solution of this embodiment, the threaded connector makes the connection between the drip tube and the polishing slurry supply system more convenient and reliable, facilitating installation and disassembly, and making maintenance and replacement of the drip tube easier. The threaded connector being exposed on the mounting bracket allows operators to easily observe the working status of the drip tube, promptly detect problems such as blockage or leakage, and also facilitates cleaning and maintenance of the drip tube, ensuring a stable supply of polishing slurry, improving polishing quality and equipment reliability. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0031] Figure 1 This is a perspective view of the polishing machine in the embodiments of this application;
[0032] Figure 2 This is a schematic diagram of the adjustable pressure grinding disc mechanism in the embodiments of this application.
[0033] Figure label:
[0034] Support cantilever 1, clearance groove 11, mounting cover 12, inner wall 121;
[0035] Mounting bracket 2, mounting groove 21, support step 211, pressure balancing device 22, rubber pad 221, locking element 23, stud 24;
[0036] Pressure regulating drive mechanism 3, pressure regulating cylinder 31, piston rod 311, cylinder body 312;
[0037] Upper grinding disc 4, clearance hole 41;
[0038] 5 drip tubes, 50 threaded connectors;
[0039] Lifting mechanism 6.
[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0041] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.
[0042] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0043] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.
[0044] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.
[0045] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values that would be recognized by one of ordinary skill in the art.
[0046] On the one hand, existing adjustable pressure grinding disc mechanisms typically lack a pressure regulating structure on the upper grinding disc. On the other hand, existing upper grinding discs cannot increase the amount of grinding fluid according to pressure changes.
[0047] To address the aforementioned technical problems, this embodiment provides an adjustable pressure grinding disc mechanism.
[0048] Figure 1 This is a perspective view of the polishing machine in the embodiments of this application. Figure 2 This is a schematic diagram of the adjustable pressure grinding disc mechanism in the embodiments of this application.
[0049] The adjustable pressure grinding disc mechanism of this embodiment includes: a support cantilever 1, a mounting frame 2, a pressure regulating drive mechanism 3, an upper grinding disc 4, and a drip tube 5. The support cantilever 1 is horizontally fixed to the lifting mechanism 6 of the polishing machine, serving as the load-bearing foundation of the entire mechanism. The mounting frame 2 is vertically movable and mounted on the support cantilever 1, such as on the drive end of the pressure regulating drive mechanism 3. The pressure regulating drive mechanism 3 is fixedly mounted on the support cantilever 1 and connected to the mounting frame 2, used to drive the mounting frame 2 to move vertically. The upper grinding disc 4 is mounted on the mounting frame 2, and a through-hole 41 is provided in the center of the upper grinding disc 4. The drip tube 5 is mounted on the mounting frame 2 and faces the through-hole 41.
[0050] The inventive concept of the adjustable pressure grinding disc mechanism of this application is as follows: the supporting cantilever 1 serves as the basic bearing and positioning component, providing a stable installation reference for the entire mechanism; the mounting frame 2 carries the upper grinding disc 4 and the drip tube 5, achieving pressure adjustment through vertical movement and transmitting pressure to the upper grinding disc 4; the pressure regulating drive mechanism 3 serves as the power source, providing vertical movement power to the mounting frame 2 to achieve polishing pressure adjustment; the upper grinding disc 4 serves as the polishing execution surface, and its clearance hole 41 provides an internal liquid supply channel; the drip tube 5 serves as the end of the polishing liquid delivery, precisely guiding the polishing liquid into the clearance hole 41. After the mechanism is installed, the lifting mechanism 6 of the polishing machine drives the supporting cantilever 1 to descend, causing the upper grinding disc 4 to contact the workpiece at the set pressure for polishing; during the polishing process, the pressure regulating drive mechanism 3 can drive the mounting frame 2 to descend, adjusting the polishing pressure in real time, while the polishing liquid flows through the drip tube 5 and the clearance hole 41 to the center of the polishing area. After polishing, the mechanism is raised, stopping the liquid supply. This mechanism solves the problems of traditional upper grinding discs being unable to adjust pressure and insufficient liquid supply.
[0051] For example, the pressure regulating drive mechanism 3 is specifically defined as a pressure regulating cylinder 31, which is fixedly mounted on the support cantilever 1, and the piston rod 311 of the pressure regulating cylinder 31 is connected to the mounting bracket 2. The pressure regulating cylinder 31 can be a servo-controlled cylinder. The pressure regulating cylinder 31 has the advantages of simple structure, fast response speed, high control accuracy, and relatively low cost. It can stably and reliably provide vertical driving force to the mounting bracket 2, realize the precise vertical movement of the upper grinding disc 4, and thus accurately adjust the polishing pressure.
[0052] The supporting cantilever 1 is provided with a vertically extending relief groove 11, and a mounting cover 12 is fixedly installed above the relief groove 11. The pressure regulating cylinder 31 is fixedly installed on the inner wall 121 of the mounting cover 12 and passes through the relief groove 11. The size of the relief groove 11 should be slightly larger than the diameter of the cylinder body 312 of the pressure regulating cylinder 31 to ensure that the pressure regulating cylinder 31 can pass smoothly through the relief groove 11. Above the relief groove 11, the mounting cover 12 is fixedly installed by welding, bolting, or other methods. The mounting cover 12 is made of a material with certain strength and rigidity, such as steel plate, and its shape and size should be able to completely cover the relief groove 11 and provide sufficient installation space for the pressure regulating cylinder 31. The pressure regulating cylinder 31 is placed inside the mounting cover 12, and the mounting flange of the pressure regulating cylinder 31 is fixed to the inner wall 121 of the mounting cover 12 by bolts to ensure that the pressure regulating cylinder 31 is firmly installed and accurately positioned. The cylinder body 312 of the pressure regulating cylinder 31 passes through the relief groove 11, and its piston rod 311 is located below the support cantilever 1 so as to connect with the mounting bracket 2.
[0053] The shape and size of the mounting groove 21 on the mounting bracket 2 should match the pressure balancing device 22 to ensure that the pressure balancing device 22 can be smoothly placed into the mounting groove 21. A support step 211 is machined into the inner wall of the mounting groove 21. The height and width of the support step 211 should be designed according to the structure of the pressure balancing device 22 to ensure that the pressure balancing device 22 can be stably placed on the support step 211. The pressure balancing device 22 is installed at the bottom of the piston rod 311 of the pressure regulating cylinder 31. The pressure balancing device 22 can be made of a material with certain elasticity and buffering properties. Its function is to balance the pressure applied to the mounting bracket 2 by the piston rod 311, so that the mounting bracket 2 is subjected to uniform force. The piston rod 311 with the pressure balancing device 22 is placed into the mounting groove 21, so that the pressure balancing device 22 is accurately placed on the support step 211. At the top of the mounting groove 21, a locking component 23 is fixedly installed by means of threaded connection, welding or other methods. The locking component 23 can be in the form of a baffle, nut or other similar means. Its function is to prevent the pressure balancing device 22 from disengaging from the mounting groove 21 and to ensure that the pressure balancing device 22 always remains in the correct position within the mounting groove 21 during operation.
[0054] Furthermore, a rubber pad 221 of suitable specifications and hardness is selected as the pressure balancing device 22. The dimensions of the rubber pad 221 should match the contact surface of the mounting groove 21 and the bottom of the piston rod 311 to ensure that it can effectively perform the pressure balancing function. A mounting structure, such as a groove or a flat surface, adapted to the rubber pad 221 is machined on the bottom of the piston rod 311 to securely install the rubber pad 221 on the bottom of the piston rod 311. The rubber pad 221 is placed on the mounting structure at the bottom of the piston rod 311, and the connection between the rubber pad 221 and the piston rod 311 is ensured to be tight by means of adhesive bonding, snap fasteners, etc., so that it will not loosen or fall off during operation. During installation, the installation position and condition of the rubber pad 221 need to be checked to ensure that it can perform its pressure balancing function normally.
[0055] The upper grinding disc 4 can be mounted on the mounting bracket 2 by machining threaded holes matching the studs 24 on both the mounting bracket 2 and the upper grinding disc 4. The position of the threaded holes should ensure that each stud 24 is evenly distributed around the clearance hole 41 to guarantee the connection strength and uniform force distribution between the upper grinding disc 4 and the mounting bracket 2. Select studs 24 of appropriate specifications and materials; the length of the studs 24 should meet the connection requirements between the mounting bracket 2 and the upper grinding disc 4, with sufficient adjustment allowance. Screw the studs 24 sequentially into the threaded holes on the mounting bracket 2 and the upper grinding disc 4. During screwing, use a torque wrench or similar tool to tighten according to the specified torque value to ensure a secure and reliable connection of the studs 24. After installation, check the connection between the upper grinding disc 4 and the mounting bracket 2 to ensure that the upper grinding disc 4 is installed stably without shaking or tilting.
[0056] A threaded connector 50 is machined at the upper end of the drip tube 5. The specifications of the threaded connector 50 should match the connection interface of the grinding fluid supply system to ensure a tight connection. The length and diameter of the threaded connector 50 should be designed according to actual installation requirements, ensuring both reliable connection and ease of installation and disassembly by operators. A mounting hole is machined on the mounting bracket 2 corresponding to the installation position of the drip tube 5. The size of the mounting hole should be slightly larger than the diameter of the drip tube 5 so that the drip tube 5 can pass smoothly through the mounting bracket 2. The drip tube 5 is passed through the mounting hole on the mounting bracket 2, leaving the threaded connector 50 exposed. A sealing gasket is installed on the threaded connector 50, and then the drip tube 5 is connected to the grinding fluid supply system. A sealed connection is achieved by tightening the threaded connector 50. After installation, check whether the connection of the drip tube 5 is secure and whether there is any leakage, ensuring that the threaded connector 50 is exposed on the mounting bracket 2 for easy observation and maintenance by operators.
[0057] When the adjustable pressure grinding disc mechanism of this embodiment is working, the pressure regulating cylinder 31 is first activated. After the pressure regulating cylinder 31 receives a control signal from the polishing machine control system, the piston rod 311 begins to extend or retract. The movement of the piston rod 311 drives the mounting frame 2 to move vertically on the support cantilever 1. When the piston rod 311 applies pressure to the mounting frame 2, the rubber pad 221 can buffer and balance the pressure, so that the force on each part of the mounting frame 2 is uniform, avoiding deformation or damage to the mounting frame 2 due to excessive local pressure, thereby ensuring that the upper grinding disc 4 can move smoothly downward or upward. As the mounting frame 2 moves, the upper grinding disc 4 also moves accordingly. The operator or control system can precisely control the stroke and pressure of the pressure regulating cylinder 31 according to the requirements of the polishing process, thereby adjusting the pressure of the upper grinding disc 4 on the workpiece to meet the pressure requirements of different workpieces and polishing stages. When the upper grinding disc 4 moves to the appropriate position and applies appropriate pressure to the workpiece, the rotating mechanism of the polishing machine is activated, so that the lower grinding disc and the workpiece begin to rotate, and the polishing operation begins. During the polishing process, the polishing slurry supply system provides polishing slurry to the polishing area through the drip pipe 5; the polishing slurry drips onto the workpiece surface through the clearance hole 41, serving to lubricate, cool, and assist in polishing. When the polishing operation is completed, the polishing machine stops working and controls the piston rod 311 of the pressure regulating cylinder 31 to retract, driving the mounting bracket 2 and the upper grinding disc 4 to move upward, so that the upper grinding disc 4 separates from the workpiece.
[0058] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0060] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. An adjustable pressure grinding disc mechanism, characterized in that, include: Support cantilever; Mounting bracket, which is vertically movable and mounted on the supporting cantilever; A pressure regulating drive mechanism is fixedly mounted on the support cantilever and connected to the mounting frame, used to drive the mounting frame to move vertically; The upper grinding disc is disposed on the mounting frame, and the upper grinding disc has a clearance hole that runs vertically through the middle. A drip tube is provided on the mounting bracket and is positioned toward the clearance hole.
2. The adjustable pressure grinding disc mechanism according to claim 1, characterized in that, The pressure regulating drive mechanism is a pressure regulating cylinder, which is fixedly mounted on the support cantilever, and the piston rod of the pressure regulating cylinder is connected to the mounting bracket.
3. The adjustable pressure grinding disc mechanism according to claim 2, characterized in that, The support cantilever is provided with a vertically extending relief groove, and a mounting cover is fixedly installed above the relief groove; the pressure regulating cylinder is fixedly installed on the inner wall of the mounting cover and passes through the relief groove.
4. The adjustable pressure grinding disc mechanism according to claim 2, characterized in that, The mounting bracket is provided with a mounting groove, the inner wall of the mounting groove is provided with a support step, the bottom of the piston rod is provided with a pressure balancing device, the pressure balancing device is provided on the support step, and a locking member is fixedly provided on the top of the mounting groove to prevent the pressure balancing device from disengaging from the mounting groove.
5. The adjustable pressure grinding disc mechanism according to claim 4, characterized in that, The pressure balancing device is a rubber pad.
6. The adjustable pressure grinding disc mechanism according to claim 1, characterized in that, The mounting bracket is connected to the upper grinding disc by a number of studs, and each stud is arranged around the clearance hole.
7. The adjustable pressure grinding disc mechanism according to claim 1, characterized in that, The upper end of the drip tube is provided with a threaded connector, which is exposed outside the mounting bracket.