Grinding self-adaptive machining control system and technology for improving flatness of ceramic workpiece
By real-time detection and control of the system during the grinding of ceramic workpieces, the stability and firm values are used to ensure the fixation and flatness of ceramic workpieces, the problems of poor flatness and safety hazards during the grinding of ceramic workpieces are solved, and the problem of further improvement is achieved Efficient grinding effect.
Patent Information
- Application Number
- CN202411707321.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-01-07
AI Technical Summary
During the grinding process, ceramic workpieces have poor flatness due to internal stress and low accuracy, and traditional fixing methods have safety risks, especially when the temperature rises, which may lead to a risk of flying out, making it difficult to accurately detect and control.
Adaptive grinding processing control system including preparation unit, coarse grinding unit, sorting unit, fine grinding unit, detection unit, analysis unit and final inspection unit are used to calculate the stable value by detecting temperature, vibration displacement and grinding time data, combined with The pressure data of the suction cup calculates a firm value, and the grinding process is controlled in real time to ensure the fixation and flatness of the ceramic workpiece.
It improves the planarity and processing safety of ceramic workpieces, reduces the risk of flying out through real-time inspection and control, and ensures the stable fixation and precise grinding effect of ceramic workpieces.
Smart Images

Figure CN119260481A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ceramic workpiece grinding, and more specifically to a grinding adaptive processing control system and process for improving the flatness of a ceramic workpiece. Background Art
[0002] Ceramics is a general term for pottery and porcelain, and is also a kind of arts and crafts. Pottery is made of clay with high viscosity and strong plasticity as the main raw material. Pottery itself is opaque, has fine pores and weak water absorption, and makes a turbid sound when struck. Porcelain is made of clay, feldspar and quartz. Porcelain itself is translucent, does not absorb water, is corrosion-resistant, has a hard and compact body, and makes a crisp sound when struck. Various ceramic workpieces made of ceramics are widely used in various fields.
[0003] During the production process, the surface of the ceramic workpiece needs to be ground to ensure its overall aesthetics. During grinding, due to the existence of internal stress and low precision during the processing, the surface flatness of the ceramic workpiece is low and a certain degree of curvature will occur. Therefore, before the ceramic workpiece is actually used, the surface of the ceramic workpiece is processed by grinding to improve the flatness of the surface of the ceramic workpiece.
[0004] When grinding a ceramic workpiece, the first time you grind it, you need to fix the workpiece. Usually, you use adhesive to connect the workpiece to the jig. However, the temperature of the workpiece will keep rising during grinding. When the temperature exceeds the melting point of the adhesive or approaches the melting point, the connection between the workpiece and the adhesive will decrease, increasing the possibility of the workpiece flying out.
[0005] Moreover, when the ceramic workpiece is being fine-ground, since the surface of the ceramic workpiece is relatively smooth at this time, there is a possibility that the ceramic workpiece will fly out when it is fixed with a suction cup. However, the traditional fine-ground device is also unable to detect the state of the ceramic workpiece itself during fine-ground grinding, which makes the current ceramic workpiece grinding device less safe when working. Summary of the invention
[0006] In order to overcome the above-mentioned defects of the prior art, the implementation rules of the present invention provide a grinding adaptive processing control system and process for improving the flatness of ceramic workpieces, so as to solve the technical problems raised in the background technology.
[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding adaptive processing control system for improving the flatness of a ceramic workpiece, comprising a preparation unit, a rough grinding unit, a sorting unit, a fine grinding unit, an analysis unit, a detection unit, a central unit and a final inspection unit, wherein the preparation unit fixes the ceramic workpiece on a jig, the rough grinding unit is used for rough grinding the ceramic workpiece, the sorting unit sorts the rough-ground ceramic workpiece, and the sorting unit fixes the ceramic workpiece with a suction cup, the fine grinding unit is used for fine grinding the ceramic workpiece, the final inspection unit is used to detect the fine-ground ceramic workpiece, the detection unit is used to detect data information when the ceramic workpiece is rough-ground and fine-ground, the analysis unit receives the data information detected by the detection unit and calculates a stable value W and a firm value L, and the analysis unit sends a stop and pause command to the central unit after analyzing the stable value W and the firm value L, and the central unit receives the stop and pause command to control the rough grinding unit and the fine grinding unit to stop working;
[0008] The rough grinding unit includes a processing module, an analysis module and a flipping module. The processing module is used to perform rough grinding on the ceramic workpiece. The flipping module is used to flip the ceramic workpiece 180°. The detection unit detects the temperature data information WD of the ceramic workpiece during rough grinding, the vibration displacement information WY of the ceramic workpiece, and the time data information SJ of the grinding of the ceramic workpiece. The detection unit also detects the pressure data information YL of the suction cup after the ceramic workpiece is flipped over and during the fine grinding unit processing. The detection unit sends the collected data information to the analysis unit. The analysis unit receives the data information sent by the detection unit and calculates the stability value W.
[0009] In a preferred embodiment, the analysis unit uses a calculation formula for the stable value W to calculate the stable value W, and the calculation formula for the stable value W is W=K*WY[SJ+(WD-BZ)], where K is a constant correction coefficient, and BZ is a standard temperature when the ceramic workpiece is processed. The analysis unit compares the calculated stable value W with its internal threshold value Y1. When the stable value W>threshold value Y1, the analysis unit sends a stop command to the central unit. When the stable value W≤threshold value Y1, the analysis unit does not send a command, and the central unit receives the stop command and controls the rough grinding unit to stop working.
[0010] In a preferred embodiment, when the flipping module is working, the flipping module uses hot water at 70°C or above to melt the wax adhesive, and the flipping unit separates the ceramic workpiece from the jig and cleans the wax adhesive on the surface of the ceramic workpiece. After flipping the ceramic workpiece 180°, the polished surface of the ceramic workpiece is fixed on the suction cup, and the processing module rough-grinds the upper surface of the ceramic workpiece.
[0011] In a preferred embodiment, the analysis unit receives the data information collected by the detection unit and calculates the firmness value L. The calculation formula of the firmness value L is: Wherein MJ is the area data of the suction cup itself, ZL is the mass data of the ceramic workpiece, BC is the compensation number of the temperature data information WD, and the analysis unit compares the calculated firmness value L with its internal threshold value Y2. When the firmness value L>threshold value Y2, the analysis unit does not send an instruction. When the firmness value L≤threshold value Y2, the analysis unit sends a pause instruction to the central unit. The central unit receives the pause instruction and controls the coarse grinding unit and the fine grinding unit to suspend operation.
[0012] In a preferred embodiment, the stability value W and the firmness value L calculated by the analysis unit represent the first rough grinding and the turning over of the ceramic workpiece and the fine grinding unit processing respectively. The stability value W and the firmness value L are independent of each other, and when a pause command is sent because the firmness value L ≤ the threshold value Y2, the central unit will control the fine grinding unit to stop working, while in the rough grinding unit, the equipment for the first ceramic workpiece grinding operates normally, and the equipment for grinding the ceramic workpiece after turning over is suspended.
[0013] In a preferred embodiment, the sorting unit measures the bending degree data WQ of the ceramic workpiece, and the sorting unit places the ceramic workpieces with different bending degrees on suction cups with corresponding bending arcs, and the suction cups are adsorbed on the concave side walls of the ceramic workpieces for fine grinding. After one fine grinding, the ceramic workpiece is flipped 180° and fine ground again. After fine grinding, it is sorted again until the ceramic workpiece is processed.
[0014] In a preferred embodiment, the adsorption and fixing range of each suction cup with a corresponding curvature in the sorting unit is WB±0.05, in millimeters, WB is the curvature of the suction cup itself, and when WB-0.05≤WQ≤WB+0.05, all ceramic workpieces can be adsorbed and fixed on the suction cup.
[0015] In a preferred embodiment, the fine grinding unit is used to fine-process the ceramic workpiece fixed in the sorting unit, and after the fine grinding unit performs fine grinding, the curvature of the ceramic workpiece is detected again through the sorting unit. After the detection, unqualified ceramic workpieces are fine-ground again, and qualified ceramic workpieces are sent to the final inspection unit.
[0016] In a preferred embodiment, the final inspection unit is used to inspect the ceramic workpiece after fine processing is completed, and the ceramic workpiece needs to be left to stand at room temperature for one hour or more. The final inspection unit detects the degree of bending of the ceramic workpiece. When the final inspection unit detects that the degree of bending of the ceramic workpiece does not meet the standard, the final inspection unit sends the ceramic workpiece back to the fine grinding unit for fine grinding again, and the final inspection unit records the bending degree data WQ1 and WQ2 on both sides of the ceramic workpiece that does not meet the standard, where WQ1 is the convex bending degree data of the ceramic workpiece, and WQ2 is the concave bending degree data of the ceramic workpiece.
[0017] The grinding adaptive processing technology for improving the flatness of ceramic workpieces includes the following steps:
[0018] Step S1, placing the ceramic workpiece in a jig, and filling wax adhesive between the jig and the ceramic workpiece so that the ceramic workpiece and the jig are stably connected;
[0019] Step S2, roughly grinding the first surface of the ceramic workpiece facing upward, and after the rough grinding is completed, turning the second surface of the ceramic workpiece facing downward upward, so that the first surface is adsorbed by the suction cup and then the second surface is roughly ground;
[0020] Step S3, measuring the bending degree of the ceramic workpieces and sorting the ceramic workpieces;
[0021] Step S4, placing ceramic workpieces with different bending degrees on suction cups with corresponding bending arcs, and fine grinding the upward surface of the ceramic workpiece;
[0022] Step S5, sorting the finely ground ceramic workpiece again and sucking it with a suction cup having a corresponding curvature, turning the ceramic workpiece over and then fine grinding it;
[0023] Step S6, repeating steps S3 to S5 until the ceramic workpiece meets the requirements.
[0024] Technical effects and advantages of the present invention:
[0025] 1. The detection unit of the present invention detects the temperature data information WD, vibration displacement information WY and grinding time data information SJ of the ceramic workpiece during rough grinding. The three sets of data are combined to calculate the stability value W, which can accurately reflect the fixing condition of the ceramic workpiece itself. When the ceramic workpiece is likely to fly out, it can be stopped in time to ensure the safety of the ceramic workpiece during processing;
[0026] 2. When the ceramic workpiece of the present invention is finely ground, the temperature is high, which will directly cause the suction cup to detach, and the pressure in the suction cup can indicate the current connection status of the suction cup. The larger the ratio between the area of the suction cup and the mass of the ceramic workpiece, the stronger the fixation. When the firm value L becomes larger, the connection is more firm. The firm value L is used to indicate the firmness of the ceramic workpiece itself during fine grinding, which is more accurate.
[0027] 3. After fine grinding, the ceramic workpiece of the present invention will bend, so the curvature is measured. After the measurement, the concave side is fixed to the suction cup. The concave surface is easy to fix with the suction cup and can withstand a higher force after fixation. If the convex surface is connected to the suction cup, it is more likely to leak, thereby ensuring stability during processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the overall composition of the system of the present invention.
[0029] Figure 2 The figure is a schematic diagram of the ceramic workpiece processing process of the present invention. DETAILED DESCRIPTION
[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The grinding adaptive processing control system and process for improving the flatness of ceramic workpieces involved in the present invention are not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0031] Reference Figure 1 The present invention provides a grinding adaptive processing control system for improving the flatness of a ceramic workpiece, comprising a preparation unit, a rough grinding unit, a sorting unit, a fine grinding unit, an analysis unit, a detection unit, a central unit and a final inspection unit. The preparation unit fixes the ceramic workpiece on a jig. The rough grinding unit is used for rough grinding the ceramic workpiece. The sorting unit sorts the rough-ground ceramic workpiece, and the sorting unit fixes the ceramic workpiece with a suction cup. The fine grinding unit is used for fine grinding the ceramic workpiece. The final inspection unit is used to detect the fine-ground ceramic workpiece. The detection unit is used to detect data information when the ceramic workpiece is rough-ground and fine-ground. The analysis unit receives the data information detected by the detection unit and calculates a stable value W and a firm value L. The analysis unit sends a stop and pause command to the central unit after analyzing the stable value W and the firm value L. The central unit receives the stop and pause command to control the rough grinding unit and the fine grinding unit to stop working.
[0032] Reference Figure 1The rough grinding unit includes a processing module, an analysis module and a flipping module. The processing module is used to perform rough grinding on the ceramic workpiece. The flipping module is used to flip the ceramic workpiece 180 degrees. The detection unit detects the temperature data information WD of the ceramic workpiece during rough grinding, the vibration displacement information WY of the ceramic workpiece, and the grinding time data information SJ of the ceramic workpiece. The detection unit detects the pressure data information YL of the suction cup after the ceramic workpiece is flipped and during the fine grinding unit processing. The detection unit sends the collected data information to the analysis unit. The analysis unit receives the data information sent by the detection unit and calculates The stable value W is calculated. The analysis unit uses the calculation formula of the stable value W to calculate the stable value W. The calculation formula of the stable value W is W=K*WY[SJ+(WD-BZ)], where K is a constant correction coefficient, and BZ is a standard temperature when the ceramic workpiece is processed. The analysis unit compares the calculated stable value W with its internal threshold value Y1. When the stable value W>threshold value Y1, the analysis unit sends a stop command to the central unit. When the stable value W≤threshold value Y1, the analysis unit does not send a command. The central unit receives the stop command and controls the rough grinding unit to stop working.
[0033] In the embodiment of the present application, the detection unit detects the temperature data information WD, the vibration displacement information WY and the grinding time data information SJ of the ceramic workpiece during rough grinding. The temperature data information WD will affect the fixation of the ceramic workpiece. When the temperature is high, the wax adhesive used to fix the ceramic workpiece is easy to melt, so that the fixation effect cannot be achieved. The vibration displacement can indicate the fixation of the ceramic workpiece itself under grinding. When the vibration displacement is large, there is a possibility that the ceramic workpiece will be directly detached. The longer the grinding time, the greater the possibility that the ceramic workpiece will be detached. Therefore, the present application combines these three sets of data into a single unit. The calculated stable value W can accurately reflect the fixation of the ceramic workpiece itself. When the stable value W>threshold Y1, it means that the ceramic workpiece may fly out. When the ceramic workpiece flies out, it may cause harm to the on-site staff. Therefore, the analysis unit sends a stop command in time to stop the rough grinding unit. When the stable value W≤threshold Y2, it means that the ceramic workpiece is relatively healthy during rough grinding, so it can continue to work. In addition, it should be noted that when the rough grinding unit stops working, the staff can check and cool down the ceramic workpiece or re-fix it before resuming work.
[0034] Furthermore, when the flipping module is working, the flipping module uses hot water of 70°C or above to melt the wax adhesive, and the flipping unit separates the ceramic workpiece from the jig and cleans the wax adhesive on the surface of the ceramic workpiece. After flipping the ceramic workpiece 180°, the polished surface of the ceramic workpiece is fixed on the suction cup, and the processing module rough-grinds the upper surface of the ceramic workpiece.
[0035] In the embodiment of the present application, when flipping, hot water at 70°C or above can be used to melt the wax adhesive and can be quickly taken out. After the wax adhesive is cleaned, the ceramic workpiece as a whole is also relatively clean, and the surface after rough grinding is relatively smooth. Therefore, a suction cup can be used to firmly fix it, and the suction cup fixes it relatively quickly, thereby improving overall work efficiency.
[0036] Furthermore, the analysis unit receives the data information collected by the detection unit and calculates the firmness value L. The calculation formula of the firmness value L is: Wherein, MJ is the area data of the suction cup itself, ZL is the mass data of the ceramic workpiece, BC is the compensation number of the temperature data information WD, and the analysis unit compares the calculated firmness value L with its internal threshold value Y2. When the firmness value L>threshold value Y2, the analysis unit does not send an instruction at this time. When the firmness value L≤threshold value Y2, the analysis unit sends a pause instruction to the central unit. The central unit receives the pause instruction and controls the rough grinding unit and the fine grinding unit to suspend work. The stability value W and the firmness value L calculated by the analysis unit represent the first rough grinding and the turning over of the ceramic workpiece and the fine grinding unit processing respectively. The stability value W and the firmness value L are independent of each other. When a pause instruction is sent because the firmness value L≤threshold value Y2, the central unit will control the fine grinding unit to stop working. In the rough grinding unit, the equipment for the first grinding of the ceramic workpiece runs normally, and the equipment for grinding the ceramic workpiece after turning over stops working.
[0037] In the embodiment of the present application, after the ceramic workpiece is turned over and during the fine grinding unit processing, since the ceramic workpiece has a relatively smooth surface, a suction cup is used to fix it, which has a good fixing effect and ensures its work efficiency. When the suction cup is fixed, a new firmness value L is used to represent it. When the temperature is high, it will directly cause the suction cup to detach, and the pressure in the suction cup can represent the current connection status of the suction cup. The ratio between the area of the suction cup and the mass of the ceramic workpiece, the larger the ratio, the firmer the fixation. Therefore, when the firmness value L calculated by the present application and the pressure data information YL of the suction cup are certain, the lower the temperature and the lower the mass of the ceramic workpiece, the better the connection. When the area is larger, the ratio becomes larger, and when the firmness value L becomes larger, the connection is more secure. Therefore, when the firmness value L>threshold Y2, no instruction will be sent, and when the firmness value L≤threshold Y2, a pause instruction will be sent. In addition, it should be noted that BC is the compensation number of the temperature data information WD, which is a value greater than 30 data, and its specific value can be set by the user in the actual environment. The compensation number can avoid the problem that the whole cannot be calculated when the data information WD is in the denominator position and it appears to be zero during calculation. In the rough grinding unit, the equipment for the first ceramic workpiece grinding operates normally, and the equipment for grinding the ceramic workpiece after flipping stops working.
[0038] Furthermore, the sorting unit measures the bending degree data WQ of the ceramic workpiece, and the sorting unit places the ceramic workpieces with different bending degrees on suction cups with corresponding bending arcs, and the suction cups are adsorbed on the concave side walls of the ceramic workpieces for fine grinding. After one fine grinding, the ceramic workpiece is turned 180° and fine ground again. After fine grinding, it is sorted again until the ceramic workpiece is processed.
[0039] In the embodiment of the present application, since the ceramic workpiece will bend after fine grinding, the curvature is measured. After the measurement, the concave side is fixed to the suction cup. This is because the concave surface is easy to fix to the suction cup and can withstand a higher force after fixation. If the convex surface is connected to the suction cup, air leakage is more likely to occur, thereby ensuring stability during processing.
[0040] Furthermore, the adsorption and fixing range of each suction cup with a corresponding curvature in the sorting unit is WB±0.05, in millimeters, where WB is the curvature of the suction cup itself. When WB-0.05≤WQ≤WB+0.05, all ceramic workpieces can be adsorbed and fixed on the suction cup.
[0041] The further fine-grinding unit is used to fine-process the ceramic workpiece fixed in the sorting unit, and after the fine-grinding unit performs fine-grinding, the curvature of the ceramic workpiece is detected again by the sorting unit. After the detection, the unqualified ceramic workpiece is fine-grinded again, and the qualified ceramic workpiece is sent to the final inspection unit; in the embodiment of the present application, when a suction cup is used for fixation, if a corresponding suction cup is set for each curvature, the number of suction cups required at this time is a relatively large number. Therefore, the present application sets an interval, i.e. WB±0.05. Ceramic workpieces within this interval can be fixed, and the firmness of the fixation can be guaranteed, so that the present application is simple and convenient enough when used.
[0042] The further final inspection unit is used to inspect the ceramic workpiece after the fine processing is completed, and the ceramic workpiece needs to be left to stand at room temperature for one hour or more. The final inspection unit detects the degree of bending of the ceramic workpiece. When the final inspection unit detects that the degree of bending of the ceramic workpiece does not meet the standard, the final inspection unit sends the ceramic workpiece back to the fine grinding unit for fine grinding again, and the final inspection unit records the bending degree data WQ1 and WQ2 on both sides of the ceramic workpiece that does not meet the standard, where WQ1 is the convex bending degree data of the ceramic workpiece, and WQ2 is the concave bending degree data of the ceramic workpiece.
[0043] In the embodiment of the present application, after fine grinding, sorting is performed again. Unqualified ceramic workpieces will be fine ground again until they meet the standard requirements to ensure the processing instructions. The final inspection unit inspects the ceramic workpieces that have been left standing for one hour or more in the external room temperature environment. At this time, the heat generated by the grinding of the ceramic workpiece has dissipated. The data detected by the final inspection unit is the data when the ceramic workpiece is completed. The error caused by the deformation of the ceramic workpiece after cooling is avoided. The final inspection unit records the bending degree data WQ1 and WQ2 on both sides of the ceramic workpiece that does not meet the standards, which is convenient for understanding the changes in the ceramic workpiece during cooling. It can play a role in summarizing and concluding, and is conducive to adjusting the entire grinding process.
[0044] Reference Figure 2 , a grinding adaptive processing technology for improving the flatness of a ceramic workpiece includes the following steps:
[0045] Step S1, placing the ceramic workpiece in a jig, and filling wax adhesive between the jig and the ceramic workpiece so that the ceramic workpiece and the jig are stably connected;
[0046] Step S2, roughly grinding the first surface of the ceramic workpiece facing upward, and after the rough grinding is completed, turning the second surface of the ceramic workpiece facing downward upward, so that the first surface is adsorbed by the suction cup and then the second surface is roughly ground;
[0047] Step S3, measuring the bending degree of the ceramic workpieces and sorting the ceramic workpieces;
[0048] Step S4, placing ceramic workpieces with different bending degrees on suction cups with corresponding bending arcs, and fine grinding the upward surface of the ceramic workpiece;
[0049] Step S5, sorting the finely ground ceramic workpiece again and sucking it with a suction cup having a corresponding curvature, turning the ceramic workpiece over and then fine grinding it;
[0050] Step S6, repeating steps S3 to S5 until the ceramic workpiece meets the requirements.
[0051] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part.
[0052] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
[0053] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0054] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
[0055] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
[0056] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A grinding adaptive machining control system for improving the flatness of ceramic workpieces, characterized by: It includes a preparation unit, a rough grinding unit, a sorting unit, a fine grinding unit, an analysis unit, a detection unit, a central unit and a final inspection unit, wherein the preparation unit fixes the ceramic workpiece on the jig, the rough grinding unit is used for rough grinding the ceramic workpiece, the sorting unit sorts the rough-ground ceramic workpiece, and the sorting unit fixes the ceramic workpiece with a suction cup, the fine grinding unit is used for fine grinding the ceramic workpiece, the final inspection unit is used to detect the fine-ground ceramic workpiece, the detection unit is used to detect data information when the ceramic workpiece is rough-ground and fine-ground, the analysis unit receives the data information detected by the detection unit and calculates a stable value W and a firm value L, and the analysis unit sends a stop and pause command to the central unit after analyzing the stable value W and the firm value L, and the central unit receives the stop and pause command to control the rough grinding unit and the fine grinding unit to stop working; The rough grinding unit includes a processing module and a flipping module, the processing module is used to perform rough grinding on the ceramic workpiece, the flipping module is used to flip the ceramic workpiece 180°, the detection unit detects the temperature data information WD of the ceramic workpiece during rough grinding, the vibration displacement information WY of the ceramic workpiece, and the time data information SJ of the grinding of the ceramic workpiece, and the detection unit detects the pressure data information YL of the suction cup after the ceramic workpiece is flipped and during the fine grinding unit processing, the detection unit sends the collected data information to the analysis unit, the analysis unit receives the data information sent by the detection unit and calculates the stability value W.
2. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 1, characterized in that: The analysis unit calculates the stable value W using a calculation formula for the stable value W, where the calculation formula for the stable value W is W=K*WY[SJ+(WD-BZ)], where K is a constant correction coefficient, and BZ is a standard temperature when the ceramic workpiece is processed. The analysis unit compares the calculated stable value W with its internal threshold value Y1. When the stable value W>threshold value Y1, the analysis unit sends a stop command to the central unit. When the stable value W≤threshold value Y1, the analysis unit does not send a command, and the central unit receives the stop command and controls the rough grinding unit to stop working.
3. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 2 is characterized in that: When the flipping module is working, the flipping module uses hot water of 70°C or above to melt the wax adhesive, and the flipping unit separates the ceramic workpiece from the jig and cleans the wax adhesive on the surface of the ceramic workpiece. After the ceramic workpiece is flipped 180°, the polished plane of the ceramic workpiece is fixed on the suction cup, and the processing module roughly grinds the upper surface of the ceramic workpiece.
4. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 3 is characterized in that: The analysis unit receives the data information collected by the detection unit and calculates the firmness value L. The calculation formula of the firmness value L is: Wherein MJ is the area data of the suction cup itself, ZL is the mass data of the ceramic workpiece, BC is the compensation number of the temperature data information WD, and the analysis unit compares the calculated firmness value L with its internal threshold value Y2. When the firmness value L>threshold value Y2, the analysis unit does not send an instruction. When the firmness value L≤threshold value Y2, the analysis unit sends a pause instruction to the central unit. The central unit receives the pause instruction and controls the coarse grinding unit and the fine grinding unit to suspend operation.
5. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 4 is characterized in that: The stability value W and the firmness value L calculated by the analysis unit represent the first rough grinding, the turning over of the ceramic workpiece, and the fine grinding unit processing respectively. The stability value W and the firmness value L are independent of each other, and when a pause command is sent because the firmness value L ≤ the threshold value Y2, the central unit will control the fine grinding unit to stop working, while in the rough grinding unit, the equipment for the first ceramic workpiece grinding runs normally, and the equipment for grinding the ceramic workpiece after turning over stops working.
6. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 1, characterized in that: The sorting unit measures the bending degree data WQ of the ceramic workpiece, and the sorting unit places the ceramic workpieces with different bending degrees on suction cups with corresponding bending arcs, and the suction cups are adsorbed on the concave side walls of the ceramic workpieces for fine grinding. After one fine grinding, the ceramic workpiece is turned 180° and fine ground again. After fine grinding, sorting is performed again until the ceramic workpiece is processed.
7. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 1, characterized in that: The adsorption and fixing range of each suction cup with a corresponding curvature in the sorting unit is WB±0.05, in millimeters, where WB is the curvature of the suction cup itself. When WB-0.05≤WQ≤WB+0.05, all ceramic workpieces can be adsorbed and fixed on the suction cup.
8. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 1, characterized in that: The fine grinding unit is used to fine-process the ceramic workpiece fixed in the sorting unit, and after the fine grinding unit performs fine grinding, the curvature of the ceramic workpiece is detected again through the sorting unit. After the detection, unqualified ceramic workpieces are fine-ground again, and qualified ceramic workpieces are sent to the final inspection unit.
9. The grinding adaptive processing control system for improving the flatness of a ceramic workpiece according to claim 1, characterized in that: The final inspection unit is used to inspect the ceramic workpiece after fine processing is completed, and the ceramic workpiece needs to be left to stand at room temperature for one hour or more. The final inspection unit detects the degree of bending of the ceramic workpiece. When the final inspection unit detects that the degree of bending of the ceramic workpiece does not meet the standard, the final inspection unit sends the ceramic workpiece back to the fine grinding unit for fine grinding again, and the final inspection unit records the bending degree data WQ1 and WQ2 on both sides of the ceramic workpiece that does not meet the standard, where WQ1 is the convex bending degree data of the ceramic workpiece, and WQ2 is the concave bending degree data of the ceramic workpiece.
10. A grinding adaptive processing technology for improving the flatness of a ceramic workpiece, using a grinding adaptive processing control system for improving the flatness of a ceramic workpiece as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, placing the ceramic workpiece in a jig, and filling wax adhesive between the jig and the ceramic workpiece so that the ceramic workpiece and the jig are stably connected; Step S2, rough grinding the first surface of the ceramic workpiece facing upward, and after the rough grinding is completed, turning over the second surface of the ceramic workpiece facing downward, so that the first surface is adsorbed by the suction cup and then the second surface is rough ground; Step S3, measuring the bending degree of the ceramic workpieces and sorting the ceramic workpieces; Step S4, placing ceramic workpieces with different bending degrees on suction cups with corresponding bending arcs, and fine grinding the upward surface of the ceramic workpiece; Step S5, sorting the finely ground ceramic workpiece again and sucking it with a suction cup having a corresponding curvature, turning the ceramic workpiece over and then fine grinding it; Step S6, repeating steps S3 to S5 until the ceramic workpiece meets the requirements.
Citation Information
Patent Citations
Grinding processing method for plane optical element
CN108453568A
Steel rail polishing test method and system and electronic equipment
CN115070565A
Multi-sensor fused intelligent double-sided grinding machine
CN115741453A
Physical experiment box with high safety performance
CN115783479A
Automatic electrostatic chuck control system for semiconductor assembly
CN117080148A
Cited By
Grinding process for improving flatness of ceramic workpiece
CN117564838A