Polishing equipment
By using pressure and height sensors and a lifting drive mechanism in the polishing equipment, real-time monitoring and automatic adjustment of the polishing brushes are achieved, solving the problem of unstable polishing quality and improving product yield and efficiency.
Patent Information
- Application Number
- CN202422971327.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing technologies cannot measure and control the length of polishing brushes in a timely manner, resulting in unstable polishing quality and the need for secondary polishing rework, which leads to product yield loss and wasted operation time.
Pressure and height sensors are used to monitor the pressure and height during the polishing process in real time. The position of the polishing disc is automatically adjusted by the lifting drive mechanism to ensure that the polishing pressure and height are within the preset range, thus achieving timely measurement and control of the polishing brush.
It effectively ensures the stability of polishing quality, reduces rework, and improves product yield and polishing efficiency.
Smart Images
Figure CN223492907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing technology, and in particular to a polishing device. Background Technology
[0002] Polishing equipment is a processing device that uses physical and chemical methods, along with polishing materials or other polishing media, to repair the surface of a workpiece. Its purpose is to remove a certain thickness to repair surface defects, reduce roughness, and obtain a bright and smooth surface. Polishing brushes are a commonly used polishing material, and the length and condition of the brushes largely determine the degree of surface repair and the quality of the polishing.
[0003] In the existing technology, it is impossible to measure and control the polishing brush in a timely manner. If the brush length is lower than the control standard and is not replaced in time, the product will need to be re-polished and reworked. This rework process will cause problems such as loss of product yield and waste of operation time.
[0004] It should be noted that the above content is only used to help understand the technical solution of this utility model, and does not represent an admission that the above content is prior art. Utility Model Content
[0005] The main objective of this invention is to provide a polishing device that enables timely measurement and control of the polishing brush to ensure that the polishing quality meets expectations.
[0006] To achieve the above objectives, this utility model proposes a polishing device, which includes a frame, a processing table, and a rotary drive assembly. A planetary wheel is mounted on the processing table, and the planetary wheel has several placement holes for placing products to be processed. A lifting drive mechanism and an upper polishing disc are mounted above the processing table. Several polishing brushes are mounted on the side of the upper polishing disc facing the planetary wheel. The lifting drive mechanism drives the upper polishing disc to move closer to the planetary wheel, so that the polishing brushes contact the upper surface of the product to be processed. The rotary drive assembly drives the planetary wheel and / or the upper polishing disc to rotate.
[0007] The frame also includes a pressure sensor, which is electrically connected to the lifting drive mechanism. The pressure sensor is used to detect the current pressure value of the upper polishing disc acting on the product to be processed. When the current pressure value is lower than a preset pressure value range, the lifting drive mechanism is used to drive the upper polishing disc to move closer to the processing table until the current pressure value is within the preset pressure value range.
[0008] In one embodiment, the frame further includes a height sensor electrically connected to the lifting drive mechanism and the rotary drive assembly. The height sensor is used to detect the current height value of the upper polishing disk. When the upper polishing disk descends to a height value lower than a critical height value, the lifting drive mechanism drives the upper polishing disk to move away from the processing table, and the rotary drive assembly stops operating.
[0009] In one embodiment, the polishing equipment includes a plurality of planetary wheels arranged in a ring around the axis of the processing table; the rotary drive assembly includes a first rotary drive mechanism, under the driving action of the first rotary drive mechanism, the planetary wheels can rotate on their own axis and revolve around the axis of the processing table.
[0010] In one embodiment, the first rotary drive mechanism includes a first rotary motor, a rotary bushing, a drive sprocket, a driven sprocket, and a chain; the drive end of the first rotary motor is connected to the drive sprocket, the driven sprocket is fixedly sleeved on the lower side of the rotary bushing, and the drive sprocket and the driven sprocket are connected by chain drive; the upper side of the rotary bushing is fixedly sleeved with an inner edge tooth structure, the annular edge of the processing table is provided with an outer edge tooth structure, and the side of the planetary gear is annularly provided with a first gear portion, which meshes with the inner edge tooth structure and the outer edge tooth structure.
[0011] In one embodiment, the upper polishing disk can rotate relative to the lifting drive mechanism; the rotation drive assembly includes a second rotation drive mechanism for driving the upper polishing disk to rotate, and the rotation direction of the upper polishing disk is opposite to the revolution direction of the planetary wheel.
[0012] In one embodiment, the second rotary drive mechanism includes a second rotary motor and a rotary shaft. The rotary shaft is sleeved inside the rotary sleeve, and the rotary shaft and the rotary sleeve can rotate relative to each other. The lower end of the rotary shaft is connected to the second rotary motor. The upper end of the rotary shaft is provided with a first groove. The upper polishing disc has a recessed portion at its axis, and a first protrusion is provided on the inner side of the recessed portion. When the polishing brush of the upper polishing disc comes into contact with the upper surface of the product to be processed, the upper end of the rotary shaft is inserted into the recessed portion, and the first groove and the first protrusion are fitted together.
[0013] In one embodiment, the lifting drive mechanism includes a lifting cylinder, which is connected to the upper polishing disc via a connecting plate; wherein the connecting plate has a connecting recess on the side facing the upper polishing disc, and the upper polishing disc has a connecting protrusion on the side facing the connecting plate, and the connecting recess, the connecting protrusion, and the upper polishing disc are coaxially arranged; the end of the connecting protrusion has an annular fitting disc, which is embedded into the inner wall of the connecting recess.
[0014] In one embodiment, the polishing equipment includes a liquid supply mechanism, which includes a liquid storage tank, a first liquid delivery pipe, and a distribution plate. The inlet end of the first liquid delivery pipe is connected to the liquid storage tank, and the outlet end of the first liquid delivery pipe is located above the distribution plate. The distribution plate is installed on the side of the connecting plate away from the upper polishing plate. The annular edge of the distribution plate is provided with a guide groove, and the bottom of the guide groove is interconnected with a guide hole located on the connecting plate through a plurality of second liquid delivery pipes. A guide gap is provided between the connecting plate and the upper polishing plate, and the upper polishing plate has a plurality of liquid outlet holes. The guide holes, the guide gap, and the liquid outlet holes are sequentially connected.
[0015] In one embodiment, a lower polishing disc is rotatably connected to the bottom of the processing table, and the lower polishing disc is in contact with the lower surface of the product to be processed; the rotary drive assembly includes a third rotary drive mechanism, which drives the lower polishing disc to rotate, and the rotation direction of the lower polishing disc is opposite to the revolution direction of the planetary wheel.
[0016] In one embodiment, the third rotary drive mechanism includes a third rotary motor, the drive end of which is connected to a third drive wheel; a third gear is annularly arranged on the side of the lower polishing disc, and the third drive wheel is meshed with the third gear.
[0017] Based on research and analysis of how the pressure value of the upper polishing disc on the workpiece changes as the polishing brush wears down and shortens over time, this invention addresses this issue. By incorporating a pressure sensor to detect the current pressure value of the upper polishing disc on the workpiece, the invention indicates that the polishing brush has worn down and shortened. This is because the wear and shortening of the polishing brush creates a gap between the upper polishing disc and the workpiece, preventing the full force exerted by the lifting drive mechanism from being transmitted to the workpiece, thus causing the current pressure value to fall below the preset range. The lifting drive mechanism then moves the upper polishing disc closer to the planetary wheel until the current pressure value falls within the preset range, ensuring a constant pressure value and reducing the interference of the worn-down polishing brush. This allows for timely measurement and control of the polishing brush, ensuring that the polishing quality meets expectations. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure of an embodiment of the polishing equipment provided by this utility model;
[0020] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0021] Figure 3 A schematic diagram of the internal structure of an embodiment of the polishing equipment provided by this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Frame; 2. Machining table; 201. Outer tooth structure; 3. First rotary drive mechanism; 301. First rotary motor; 302. Rotary bushing; 303. Drive sprocket; 304. Driven sprocket; 305. Chain; 306. Inner tooth structure; 4. Planetary gear; 401. Placement hole; 402. First gear section; 5. Lifting drive mechanism; 501. Lifting cylinder; 502. Connecting disc; 503. Connecting recess; 6. Upper polishing disc; 601. Polishing brush; 602. Recess; 603. First protrusion; 604. Connecting protrusion; 605. 606. Fitting disc body; 7. Liquid outlet hole; 8. Second rotary drive mechanism; 9. Second rotary motor; 10. Rotating shaft; 11. First groove; 22. Liquid supply mechanism; 33. Liquid storage tank; 44. First infusion pipe; 5. Diverting disc; 65. Guide groove; 76. Second infusion pipe; 87. Guide hole; 98. Guide gap; 10. Lower polishing disc; 11. Third gear section; 12. Third rotary drive mechanism; 13. Third rotary motor; 14. Third drive wheel; 15. Product to be processed; 16. Height sensor;
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0027] Furthermore, it should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0028] In the existing technology, it is impossible to measure and control the polishing brush in a timely manner. If the brush length is lower than the control standard and is not replaced in time, the product will need to be re-polished and reworked. This rework process will cause problems such as loss of product yield and waste of operation time.
[0029] To solve the above-mentioned technical problems, this utility model proposes a polishing device.
[0030] Please see Figure 1-3 In one embodiment of this utility model, the polishing equipment includes a frame 1, which includes a processing table 2 and a rotary drive assembly. A planetary wheel 4 is provided on the processing table 2, and the planetary wheel 4 has a plurality of placement holes 401 for placing the product 200 to be processed. The number and shape of the placement holes 401 are designed according to the structural size of the product 200 to be processed. A lifting drive mechanism 5 and an upper polishing disc 6 are provided above the processing table 2. A plurality of polishing brushes 601 are provided on the side of the upper polishing disc 6 facing the planetary wheel 4. The lifting drive mechanism 5 is used to drive the upper polishing disc 6 to move closer to the planetary wheel 4 so that the polishing brushes 601 come into contact with the upper surface of the product 200 to be processed. The rotary drive assembly is used to drive the planetary wheel 4 and / or the upper polishing disc 6 to rotate.
[0031] The frame 1 also includes a pressure sensor (not shown in the attached figure), which is electrically connected to the lifting drive mechanism 5. The pressure sensor is used to detect the current pressure value of the upper polishing disc 6 acting on the product 200 to be processed. When the current pressure value is lower than the preset pressure value range, the lifting drive mechanism 5 is used to drive the upper polishing disc 6 to move closer to the processing table 2 until the current pressure value is within the preset pressure value range.
[0032] Based on research and analysis, this invention addresses the change in pressure exerted by the upper polishing disc 6 on the workpiece 200 as the polishing brush 601 wears down and shortens with prolonged polishing. The technical solution involves using a pressure sensor to detect the current pressure exerted by the upper polishing disc 6 on the workpiece 200. When the current pressure value falls below a preset range, it indicates that the polishing brush 601 has worn down and shortened. Understandably, this wear and shortening of the polishing brush 601 creates a gap between the upper polishing disc 6 and the workpiece 200, leading to… The force exerted by the lifting drive mechanism 5 on the upper polishing disc 6 cannot be fully transmitted to the product 200 to be processed, which will cause the current pressure value to be lower than the preset pressure value range. At this time, the lifting drive mechanism 5 drives the upper polishing disc 6 to move closer to the planetary wheel 4 until the current pressure value is within the preset pressure value range, thereby ensuring that the current pressure value of the upper polishing disc 6 on the product 200 to be processed is constant, reducing the interference of the polishing brush 601 wearing and shortening; thus, it is possible to measure and control the polishing brush 601 in a timely manner to ensure that the polishing quality meets the expectations.
[0033] Furthermore, the frame 1 also includes a height sensor 300, which is electrically connected to the lifting drive mechanism 5 and the rotary drive assembly. The height sensor 300 is used to detect the current height value of the upper polishing disc 6. When the upper polishing disc 6 descends to a height value lower than the critical height value, the lifting drive mechanism 5 drives the upper polishing disc 6 away from the processing table 2, and stops the rotary drive assembly. This configuration allows for real-time detection of the current height value of the upper polishing disc 6 by the height sensor 300, preventing the upper polishing disc 6 from descending excessively and causing excessive pressure on the workpiece, which could damage the workpiece. When the current height value is lower than the critical height value, it indicates that the polishing brush 601 has been worn to its limit, below the minimum length requirement of the polishing brush 601. At this time, the lifting drive mechanism 5 should drive the upper polishing disc 6 away from the processing table 2, and stop the rotary drive assembly, so that the operator can replace the upper polishing disc 6 equipped with the polishing brush 601.
[0034] As a preferred embodiment of the above, the polishing equipment includes a plurality of planetary wheels 4, which are arranged in a ring around the axis of the processing table 2. The rotary drive assembly includes a first rotary drive mechanism 3. Under the driving action of the first rotary drive mechanism 3, the planetary wheels 4 can rotate on their own axis and revolve around the axis of the processing table 2. With this configuration, the planetary wheels 4 are driven by the first rotary drive mechanism 3 to rotate on their own axis and revolve around the axis, thereby achieving 360-degree polishing without dead angles, ensuring uniform polishing of the product, and improving the flatness, polishing efficiency, and yield of the polished product.
[0035] There are many specific structures for the first rotary drive mechanism 3 mentioned above. In one embodiment, refer to the attached diagram. Figure 3 The aforementioned first rotary drive mechanism 3 includes a first rotary motor 301, a rotary bushing 302, a drive sprocket 303, a driven sprocket 304, and a chain 305. The drive end of the first rotary motor 301 is connected to the drive sprocket 303. The driven sprocket 304 is fixedly sleeved on the lower side of the rotary bushing 302. The drive sprocket 303 and the driven sprocket 304 are connected by a chain 305. An inner tooth structure 306 is fixedly sleeved on the upper side of the rotary bushing 302. An outer tooth structure 201 is provided on the annular edge of the processing table 2. A first gear part 402 is provided on the side of the planetary wheel 4. The first gear part 402 is meshed with the inner tooth structure 306 and the outer tooth structure 201. With this configuration, the combined action of the driving sprocket 303, the driven sprocket 304, and the chain 305 enables the first rotary motor 301 to effectively drive the rotating bushing 302 to rotate. Since the planetary wheel 4 has a first gear 402 arranged in a ring on its side, and this first gear 402 is simultaneously meshed with the outer edge tooth structure 201 and the inner edge tooth structure 306, the planetary wheel 4 achieves dual rotational motion of self-rotation and revolution through the coordinated linkage of the outer edge tooth structure 201 and the inner edge tooth structure 306, thus ensuring that the technical solution of this embodiment can be effectively implemented.
[0036] As a preferred embodiment of the above, the upper polishing disc 6 can rotate relative to the lifting drive mechanism 5; the rotation drive assembly includes a second rotation drive mechanism 7, which drives the upper polishing disc 6 to rotate, and the rotation direction of the upper polishing disc 6 is opposite to the revolution direction of the planetary wheel 4. With this configuration, the upper polishing disc 6 is driven to rotate by the second rotation drive mechanism 7, and the rotation direction of the upper polishing disc 6 is opposite to the revolution direction of the planetary wheel 4, thereby improving the polishing quality of the product 200 to be processed.
[0037] There are many specific structures for the second rotary drive mechanism 7 mentioned above. In one embodiment, refer to the attached diagram. Figure 3The aforementioned second rotary drive mechanism 7 includes a second rotary motor 701 and a rotary shaft 702. The rotary shaft 702 is sleeved inside the rotary bushing 302, and the rotary shaft 702 and the rotary bushing 302 can rotate relative to each other. The lower end of the rotary shaft 702 is connected to the second rotary motor 701. The upper end of the rotary shaft 702 is provided with a first groove 703. The upper polishing disc 6 has a recessed portion 602 at its axis, and a first protrusion 603 is provided on the inner side of the recessed portion 602. When the polishing brush 601 of the upper polishing disc 6 contacts the upper surface of the product to be processed 200, the upper end of the rotary shaft 702 is inserted into the recessed portion 602, and the first groove 703 and the first protrusion 603 are fitted together. With this configuration, the second rotary motor 701 drives the rotating shaft 702 to rotate. The first rotary motor 301 and the second rotary motor 701 rotate in opposite directions to ensure that the rotation direction of the upper polishing disc 6 is opposite to the revolution direction of the planetary wheel 4. Since the rotating shaft 702 is fitted inside the rotating bushing 302, the rotating shaft 702 and the rotating bushing 302 can rotate relative to each other without interfering with each other's movements. Simultaneously, a first groove 703 is provided at the upper end of the rotating shaft 702, and a recessed portion 602 is provided at the axis of the upper polishing disc 6. A first protrusion 603 is provided on the inner side of the recessed portion 602. The mutual engagement of the first groove 703 and the first protrusion 603 ensures that the rotating shaft 702 can effectively drive the upper polishing disc 6 to rotate, guaranteeing the effective implementation of this embodiment.
[0038] In other embodiments, in order to enhance the stability of the mutual movement between the rotating shaft 702 and the rotating bushing 302, a planar bearing may be provided between the rotating shaft 702 and the rotating bushing 302. This application does not impose specific limitations on this.
[0039] In one embodiment, refer to the appendix Figure 1-3 The lifting drive mechanism 5 includes a lifting cylinder 501, which is connected to the upper polishing disc 6 via a connecting plate 502. The connecting plate 502 has a connecting recess 503 on the side facing the upper polishing disc 6, and the upper polishing disc 6 has a connecting protrusion 604 on the side facing the connecting plate 502. The connecting recess 503, the connecting protrusion 604, and the upper polishing disc 6 are coaxially arranged. The end of the connecting protrusion 604 has an annular fitting disc 605, which is embedded in the inner wall of the connecting recess 503. This arrangement, through the fitting of the connecting protrusion 604 and the connecting recess 503, allows the upper polishing disc 6 to be connected to the connecting plate 502 and to rotate relative to it. This ensures that while the lifting cylinder 501 drives the upper polishing disc 6 to rise and fall, the rotating shaft 702 can also drive the upper polishing disc 6 to rotate. The structure is simple and highly practical.
[0040] As a preferred embodiment of the above embodiments, refer to the appendix. Figure 1-3 The polishing equipment includes a liquid supply mechanism 8, which comprises a storage tank 801 for storing polishing liquid, a first infusion pipe 802, and a distribution plate 803. The inlet end of the first infusion pipe 802 is connected to the storage tank 801, and the outlet end of the first infusion pipe 802 is located above the distribution plate 803. The distribution plate 803 is installed on the side of the connecting plate 502 away from the upper polishing plate 6. The annular edge of the distribution plate 803 is provided with a guide groove 804, and the bottom of the guide groove 804 is interconnected with a number of second infusion pipes 805 to a guide hole 806 located on the connecting plate 502. A guide gap 807 is provided between the connecting plate 502 and the upper polishing plate 6. The upper polishing plate 6 has a number of outlet holes 606, and the guide holes 806, the guide gap 807, and the outlet holes 606 are connected in sequence. With this configuration, polishing liquid is supplied through the liquid supply mechanism 8 while the upper polishing plate 6 is polishing, thereby further improving the polishing effect. During the delivery of the polishing slurry, the polishing slurry flowing out of the first delivery pipe 802 is first dispersed by the distribution plate 803, so that it is dispersed in the guide groove 804 at the annular edge of the distribution plate 803, and then flows to the guide hole 806 of the connecting plate 502 through the second delivery pipe 805. Finally, it flows out through the guide hole 806, the guide gap 807 and the outlet hole 606 in sequence, so that the upper polishing plate 6 can combine the polishing slurry to perform polishing operation on the product 200 to be processed.
[0041] The polishing fluid mentioned above can refer to cerium oxide polishing fluid using micron or submicron cerium dioxide as abrasive. This polishing fluid has the characteristics of good dispersibility, fine particle size, uniform particle size distribution, and moderate hardness.
[0042] As a preferred embodiment of the above embodiments, refer to the appendix. Figure 3 A lower polishing disc 9 is rotatably connected to the bottom of the processing table 2, and the lower polishing disc 9 is in contact with the lower surface of the product 200 to be processed. The rotary drive assembly includes a third rotary drive mechanism 10, which drives the lower polishing disc 9 to rotate, and the rotation direction of the lower polishing disc 9 is opposite to the revolution direction of the planetary wheel 4. With this configuration, the lower polishing disc 9 is positioned on the lower surface of the product 200 to be processed. Under the pressure of the upper polishing disc 6, the upper and lower surfaces of the product 200 to be processed are in close contact with the upper polishing disc 6 and the lower polishing disc 9 respectively, meaning that the upper and lower surfaces of the product 200 to be processed can be polished simultaneously, effectively improving polishing efficiency. Furthermore, the lower polishing disc 9 is driven to rotate by the third rotary drive mechanism 10, and the rotation direction of the lower polishing disc 9 is opposite to the revolution direction of the planetary wheel 4, thereby improving the polishing quality of the lower surface of the product 200 to be processed. The first rotary motor 301 and the third rotary motor 1001 rotate in opposite directions to ensure that the rotation direction of the lower polishing disk 9 is opposite to the revolution direction of the planetary wheel 4.
[0043] The specific structure of the aforementioned third rotary drive mechanism 10 can vary. In one embodiment, the third rotary drive mechanism 10 includes a third rotary motor 1001, the drive end of which is connected to a third drive wheel 1002. A third gear portion 901 is annularly arranged on the side of the lower polishing disc 9, and the third drive wheel 1002 is meshed with the third gear portion 901. With this configuration, by providing the third rotary motor 1001 on the side of the lower polishing disc 9, the third rotary motor 1001 drives the third drive wheel 1002 to rotate. Since the third drive wheel 1002 is meshed with the third gear portion 901, the third gear portion 901 drives the lower polishing disc 9 to rotate, ensuring the smooth implementation of this embodiment. The structure is simple and highly practical.
[0044] It should be noted that other aspects of the polishing equipment disclosed in this utility model are existing technologies and will not be described in detail here.
[0045] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any application of this utility model directly or indirectly in other related technical fields is included within the patent protection scope of this utility model.
Claims
1. A polishing device, characterized in that, The polishing equipment includes a frame, which includes a processing table and a rotary drive assembly. A planetary wheel is mounted on the processing table, and the planetary wheel has several placement holes for placing products to be processed. A lifting drive mechanism and an upper polishing disc are mounted above the processing table. Several polishing brushes are arranged on the side of the upper polishing disc facing the planetary wheel. The lifting drive mechanism drives the upper polishing disc to move closer to the planetary wheel, so that the polishing brushes contact the upper surface of the product to be processed. The rotary drive assembly drives the planetary wheel and / or the upper polishing disc to rotate. The frame also includes a pressure sensor, which is electrically connected to the lifting drive mechanism. The pressure sensor is used to detect the current pressure value of the upper polishing disc acting on the product to be processed. When the current pressure value is lower than a preset pressure value range, the lifting drive mechanism is used to drive the upper polishing disc to move closer to the processing table until the current pressure value is within the preset pressure value range.
2. The polishing equipment as described in claim 1, characterized in that: The frame also includes a height sensor, which is electrically connected to the lifting drive mechanism and the rotary drive assembly. The height sensor is used to detect the current height value of the upper polishing disk. When the upper polishing disk descends to a height value lower than the critical height value, the lifting drive mechanism drives the upper polishing disk to move away from the processing table, and the rotary drive assembly stops operating.
3. The polishing equipment as described in claim 1, characterized in that: The polishing equipment includes a plurality of planetary wheels, which are arranged in a ring around the axis of the processing table; the rotary drive assembly includes a first rotary drive mechanism, under the driving action of the first rotary drive mechanism, the planetary wheels can rotate on their own axis and revolve around the axis of the processing table.
4. The polishing equipment as described in claim 3, characterized in that: The first rotary drive mechanism includes a first rotary motor, a rotary bushing, a drive sprocket, a driven sprocket, and a chain; the drive end of the first rotary motor is connected to the drive sprocket, the driven sprocket is fixedly sleeved on the lower side of the rotary bushing, and the drive sprocket and the driven sprocket are connected by the chain drive; an inner tooth structure is fixedly sleeved on the upper side of the rotary bushing, an outer tooth structure is provided on the annular edge of the processing table, and a first gear portion is annularly provided on the side of the planetary wheel, the first gear portion meshing with the inner tooth structure and the outer tooth structure.
5. The polishing equipment as described in claim 4, characterized in that: The upper polishing disc can rotate relative to the lifting drive mechanism; the rotation drive assembly includes a second rotation drive mechanism, which drives the upper polishing disc to rotate, and the rotation direction of the upper polishing disc is opposite to the revolution direction of the planetary wheel.
6. The polishing equipment as described in claim 5, characterized in that: The second rotary drive mechanism includes a second rotary motor and a rotary shaft. The rotary shaft is sleeved inside the rotary sleeve, and the rotary shaft and the rotary sleeve can rotate relative to each other. The lower end of the rotary shaft is connected to the second rotary motor. The upper end of the rotary shaft is provided with a first groove. The upper polishing disc has a recessed portion at its axis, and a first protrusion is provided on the inner side of the recessed portion. When the polishing brush of the upper polishing disc comes into contact with the upper surface of the product to be processed, the upper end of the rotary shaft is inserted into the recessed portion, and the first groove and the first protrusion are fitted together.
7. The polishing equipment as described in claim 5, characterized in that: The lifting drive mechanism includes a lifting cylinder, which is connected to the upper polishing disc via a connecting plate; wherein the connecting plate has a connecting recess on the side facing the upper polishing disc, and the upper polishing disc has a connecting protrusion on the side facing the connecting plate, and the connecting recess, the connecting protrusion, and the upper polishing disc are coaxially arranged; the end of the connecting protrusion has an annular fitting disc, which is embedded into the inner wall of the connecting recess.
8. The polishing equipment as described in claim 7, characterized in that: The polishing equipment includes a liquid supply mechanism, which comprises a liquid storage tank, a first liquid delivery pipe, and a distribution plate. The inlet end of the first liquid delivery pipe is connected to the liquid storage tank, and the outlet end of the first liquid delivery pipe is located above the distribution plate. The distribution plate is installed on the side of the connecting plate away from the upper polishing plate. The annular edge of the distribution plate is provided with a guide groove, and the bottom of the guide groove is connected to the guide holes located on the connecting plate through several second liquid delivery pipes. A guide gap is provided between the connecting plate and the upper polishing plate. The upper polishing plate has several liquid outlet holes, and the guide holes, the guide gap, and the liquid outlet holes are connected in sequence.
9. The polishing equipment as described in claim 3, characterized in that: The bottom of the processing table is rotatably connected to a lower polishing disc, which is in contact with the lower surface of the product to be processed; the rotary drive assembly includes a third rotary drive mechanism, which drives the lower polishing disc to rotate, and the rotation direction of the lower polishing disc is opposite to the revolution direction of the planetary wheel.
10. The polishing equipment as described in claim 9, characterized in that: The third rotary drive mechanism includes a third rotary motor, the drive end of which is connected to a third drive wheel; a third gear is provided in a ring on the side of the lower polishing disc, and the third drive wheel is meshed with the third gear.