A CNC ultra-precision aspheric surface processing machine tool for grinding or cutting surface shape

Abstract

The present invention discloses a CNC ultra-precision non-spherical machining machine tool for grinding or cutting surface shapes, which relates to the technical field of machining machine tools, and comprises a bed, a hydrostatic guide table is installed on the upper part of the bed, and a Z-axis slide is installed on the upper part of the bed, the hydrostatic guide table is located below the Z-axis slide, a sub-table is installed on the upper part of the hydrostatic guide table, a tilt adjustment mechanism is fixedly connected to the upper part of the sub-table, a B-axis rotary table is fixedly connected to the surface of the tilt adjustment mechanism, and the B-axis rotary table is located below the Z-axis slide. During use, the present invention adjusts the movement of the hydrostatic guide table, the Z-axis slide, the tilt adjustment mechanism and the B-axis rotary table according to the detection data, so as to ensure the accuracy of the non-spherical workpiece on the upper part of the B-axis rotary table during long-distance movement, thereby improving the accuracy of the machine tool during operation.

Description

Technical Field

[0001] The invention relates to the technical field of machining machine tools, in particular to a CNC ultra-precision aspheric machining machine tool for grinding or cutting surface shapes. Background Art

[0002] CNC ultra-precision machining machines have high-precision and ultra-precision machining capabilities, and are particularly suitable for the machining of aspheric lenses. CNC ultra-precision machining machines can achieve high-precision aspheric machining through digital signal control. The main technical indicators include a spindle rotation accuracy of 0.1μm, ensuring high precision and smoothness of the machined surface. In addition, this machine can not only be used for aspheric grinding, but can also be transformed into an ultra-precision CNC lathe by replacing different tools and accessories, further expanding its application range and flexibility of use.

[0003] For example, announcement number: CN111958001A discloses "a CNC micro-hole processing machine tool", which includes a bed, a pair of Y-axis linear motors are arranged on the upper end surface of the bed, a plurality of electrically controlled permanent magnetic suction cups for adsorbing workpieces to be processed are distributed and installed on the bed between the Y-axis linear motors on both sides, the sliding end of the Y-axis linear motor is fixedly installed with a base, an X-axis lateral movement drive mechanism is fixedly installed between the two bases, a Z-axis upward lifting drive mechanism is installed at the driving end of the X-axis lateral movement drive mechanism, a high-speed drilling mechanism is installed at the driving end of the Z-axis upward lifting drive mechanism, the high-speed drilling mechanism includes a drilling frame fixed at the driving end of the Z-axis upward lifting drive mechanism, a rotating shaft rotatably installed at the lower end of the drilling frame, a drill bit installed at the lower end of the rotating shaft and a high-speed spindle motor, and the output end of the high-speed spindle motor is drivingly connected to the upper end of the rotating shaft.

[0004] However, in the prior art, during the operation of CNC ultra-precision machining centers, the additional errors of components are averaged through oil film in the guide surface of the hydrostatic bearing. Compared with other forms of guide surfaces, better motion accuracy can be obtained. However, due to this characteristic, the guide surface of the ultra-precision machine tool is usually composed of a hydrostatic bearing. However, for ultra-precision machine tools that require a large-stroke worktable, the single error control method of averaging the additional errors of components through oil film in the guide surface of the hydrostatic bearing cannot ensure the accuracy of all strokes of the ultra-precision machine tool with a large-stroke worktable within the range of 0.01μm. Summary of the invention

[0005] The object of the present invention is to provide a CNC ultra-precision aspheric machining machine for grinding or cutting surface shapes, so as to solve the problem raised in the above-mentioned background technology that for ultra-precision machine tools requiring a large-stroke worktable, the additional error of the component is controlled by a single error control method such as oil film averaging in the guide surface of a hydrostatic bearing, and the accuracy of all strokes of the ultra-precision machine tool with a large-stroke worktable cannot be ensured to be within the range of 0.01μm.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a CNC ultra-precision aspheric surface processing machine tool for grinding or cutting surface shape, comprising a bed, a hydrostatic guide table is installed on the upper part of the bed, and a Z-axis slide is installed on the upper part of the bed, the hydrostatic guide table is located below the Z-axis slide, a sub-table is installed on the upper part of the hydrostatic guide table, an inclination adjustment mechanism is fixedly connected to the upper part of the sub-table, a B-axis rotary table is fixedly connected to the surface of the inclination adjustment mechanism, the B-axis rotary table is located below the Z-axis slide, a shape measuring instrument is fixedly connected to the upper part of the Z-axis slide, the shape measuring instrument is located above the B-axis rotary table, a laser oscillator is fixedly connected to the surface of the bed, the laser oscillator is located on the side of the B-axis rotary table, a control mechanism is fixedly connected to the upper part of the bed, a capacitive displacement meter is installed on the surface of the hydrostatic guide table, the capacitive displacement meter is located on the side of the sub-table, and the surface of the sub-table is fixed The auxiliary table is connected with an optical linear transmitter, the B-axis rotary table is used to fix the aspheric workpiece, the inclination adjustment mechanism is used to adjust the inclination of the B-axis rotary table, the capacitive displacement meter is used to detect the swing distance when the auxiliary table moves, the laser oscillator is used to detect the vibration amplitude of the aspheric workpiece and the B-axis rotary table during the processing of the aspheric workpiece, the optical linear transmitter is used to project an optical straight line on the surface of the auxiliary table, the shape measuring instrument is used to detect the cutting part of the aspheric workpiece during the processing, and the shape measuring instrument detects the angle in the vertical direction between the optical straight line projected by the optical linear transmitter on the surface of the auxiliary table and the aspheric workpiece fixed on the upper part of the B-axis rotary table, the control mechanism is used to collect the detection data of the shape measuring instrument, the capacitive displacement meter, the laser oscillator and the optical linear transmitter, and the control mechanism is used to process the collected data and issue control instructions.

[0007] Preferably, a tool positioning device is installed on the surface of the Z-axis slide, and the tool positioning device is located on the side of the tool assembly.

[0008] Preferably, a grinding wheel mechanism is installed on the side of the inclination adjustment mechanism, and a lighting device is fixedly connected to the upper part of the bed.

[0009] Preferably, the control mechanism includes a data control system, a servo drive system, a correction control system and a communication system. The data control system is used to collect and process detection data of a shape measuring instrument, a capacitive displacement meter, a laser oscillator and an optical linear transmitter, and the data control system analyzes the collected data and forms control parameters and visualization data. The data control system includes a control module, and the control module controls the servo drive system according to the control parameters. The servo drive system is used to control the movement of a hydrostatic guide table, a Z-axis slide, an inclination adjustment mechanism and a B-axis rotary table. The correction control system is used to correct the error between the operating result and the set result of the servo drive system. The communication system is used to transmit the operating data to an external data center.

[0010] Preferably, the data control system includes a data acquisition and processing module, which includes a signal processing unit, a real-time data acquisition and processing unit module and a data synchronization unit. The signal processing unit is used to filter and amplify the collected data, the real-time data acquisition and processing unit module is used to set the data acquisition frequency and process the sampled data, and the data synchronization unit is used to synchronize the control parameters of the data control system to the correction control system.

[0011] Preferably, the data control system includes a data analysis module, which includes a real-time analysis unit and a post-analysis. The real-time analysis unit is used to analyze the sampled data and generate control parameters. The post-analysis is used to perform trend analysis on historical data and predict operational failures based on the trend analysis.

[0012] Preferably, the data control system includes a visualization and alarm module, which includes a data display unit and an alarm mechanism unit. The data display unit displays control parameters and trend analysis data through a dashboard, and the alarm mechanism unit sets a maximum error threshold based on the processing accuracy requirements of the aspheric workpiece, and triggers an alarm when the error exceeds the set threshold during real-time aspheric workpiece processing.

[0013] Preferably, the servo drive system comprises a drive control module and a signal feedback module, wherein the drive control module is used to control the operation of the drive device, and the signal feedback module is used to provide real-time feedback on the position and speed of the drive device.

[0014] Preferably, the correction control system includes a drive result comparison module, a control algorithm module and an execution module. The drive result comparison module is used to compare the control parameters of the data control system with the control results of the servo drive system. The control algorithm module performs calculations based on the comparison results and generates correction parameters. The execution module transmits the correction parameters to the data control system.

[0015] Preferably, the communication system adopts wireless communication equipment.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the detection data of the shape measuring instrument, the capacitive displacement meter, the laser oscillator and the optical linear transmitter are collected and processed by the data control system, and the collected data are analyzed to form control parameters and visualization data. Then, the control module controls the servo drive system according to the control parameters, and the servo drive system is used to control the movement of the hydrostatic guide table, the Z-axis slide, the inclination adjustment mechanism and the B-axis rotary table. The movement of the hydrostatic guide table, the Z-axis slide, the inclination adjustment mechanism and the B-axis rotary table is adjusted according to the detection data to ensure the accuracy of the non-spherical workpiece on the upper part of the B-axis rotary table during long-distance movement, thereby improving the accuracy of the machine tool during operation.

[0018] 2. In the present invention, the operation of the driving device is controlled by the driving control module, and the position, speed and other parameters of the driving device are fed back in real time by the signal feedback module. Finally, the control parameters of the data control system are compared with the control results of the servo driving system by the driving result comparison module. The control algorithm module calculates according to the comparison results and generates correction parameters. The execution module transmits the correction parameters to the data control system, corrects the error between the operating result of the servo driving system and the set result, so as to achieve real-time monitoring and adjustment of the movement accuracy of the aspheric workpiece during operation, avoid the accumulation of movement errors, and ensure the accuracy of machine tool operation.

[0019] 3. In the present invention, the collected signal data is filtered and amplified by the data acquisition and processing module to improve the signal strength and data accuracy. At the same time, different data acquisition frequencies are set according to different precision requirements to improve the accuracy of data acquisition while avoiding excessive processing of data, which leads to reduced system operation efficiency. At the same time, the data is transmitted to the correction control system through the data synchronization unit to provide data support for the operation of the correction control system. The real-time analysis unit samples the data and generates control parameters. During the operation of the machine tool, real-time correction of the operating parameters can be achieved to ensure that the accuracy of each operation step does not exceed the set error. Post-analysis is used to perform trend analysis on historical data, and operational failures are predicted based on trend analysis, thereby improving the stability of the machine tool operation and facilitating maintenance of the machine tool.

[0020] 4. In the present invention, the control parameters and trend analysis data are displayed through the instrument panel, which is convenient for the operator to observe the operating status of the machine tool in real time. When the error exceeds the set threshold during the real-time aspheric workpiece processing, the alarm is triggered by the alarm mechanism unit to promptly remind the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional structure of a CNC ultra-precision aspheric surface processing machine tool for grinding or cutting surface shape of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of a CNC ultra-precision aspheric surface processing machine tool for grinding or cutting surface shape of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 A schematic diagram of a top view of a CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shapes according to the present invention;

[0024] Figure 4 A schematic diagram of the side structure of a CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shapes according to the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of an optical linear transmitter in a CNC ultra-precision aspheric surface processing machine tool for grinding or cutting surface shape according to the present invention;

[0026] Figure 6 A flow chart of a control mechanism in a CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to the present invention;

[0027] Figure 7 The present invention is a flow chart of a data control system in a CNC ultra-precision aspheric machining machine tool for grinding or cutting surface shapes.

[0028] In the figure: 1. bed; 2. static pressure guide table; 3. Z-axis slide; 4. inclination adjustment mechanism; 5. B-axis rotary table; 6. tool assembly; 7. grinding wheel mechanism; 8. shape measuring instrument; 9. control mechanism; 10. lighting device; 11. capacitive displacement meter; 12. laser oscillator; 13. optical linear transmitter; 901. data control system; 902. servo drive system; 903. correction control system; 904. communication system; 905. data acquisition and processing module; 906. data analysis module; 907. visualization and alarm module; 908. control module; 909. drive control module; 910. signal feedback module; 911. drive result comparison module; 912. control algorithm module; 913. execution module. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Reference Figure 1-Figure 7 As shown: A CNC ultra-precision aspheric surface processing machine tool for grinding or cutting surface shape, comprising a bed 1, a static pressure guide table 2 is installed on the upper part of the bed 1, and a Z-axis slide 3 is installed on the upper part of the bed 1, the static pressure guide table 2 is located below the Z-axis slide 3, a sub-table is installed on the upper part of the static pressure guide table 2, an inclination adjustment mechanism 4 is fixedly connected to the upper part of the sub-table, a B-axis rotary table 5 is fixedly connected to the surface of the inclination adjustment mechanism 4, the B-axis rotary table 5 is located below the Z-axis slide 3, and a tangible Shape measuring instrument 8, shape measuring instrument 8 is located above B-axis rotating table 5, a laser oscillator 12 is fixedly connected to the surface of bed 1, laser oscillator 12 is located on the side of B-axis rotating table 5, a control mechanism 9 is fixedly connected to the upper part of bed 1, a capacitive displacement meter 11 is installed on the surface of static pressure guide table 2, capacitive displacement meter 11 is located on the side of sub-table, optical linear transmitter 13 is fixedly connected to the surface of sub-table, B-axis rotating table 5 is used to fix non-spherical workpieces, and inclination adjustment mechanism 4 is used to adjust the B-axis rotation The inclination angle of the worktable 5 is adjusted, the capacitive displacement meter 11 is used to detect the swing distance when the sub-table moves, the laser oscillator 12 is used to detect the vibration amplitude of the aspheric workpiece and the B-axis rotating worktable 5 during the processing of the aspheric workpiece, the optical straight line transmitter 13 is used to project an optical straight line on the surface of the sub-table, the shape measuring instrument 8 is used to detect the cutting part of the aspheric workpiece during the processing, and the shape measuring instrument 8 detects the angle in the vertical direction between the optical straight line projected by the optical straight line transmitter 13 on the surface of the sub-table and the aspheric workpiece fixed on the upper part of the B-axis rotating worktable 5, the control mechanism 9 is used to collect the detection data of the shape measuring instrument 8, the capacitive displacement meter 11, the laser oscillator 12 and the optical straight line transmitter 13, and the control mechanism 9 is used to process the collected data and issue control instructions, a tool positioning device is installed on the surface of the Z-axis slide 3, and the tool positioning device is located on the side of the tool assembly 6, a grinding wheel mechanism 7 is installed on the side of the inclination adjustment mechanism 4, and an illumination device 10 is fixedly connected to the upper part of the bed 1.

[0031] During use of the present invention, the aspheric workpiece is mounted on the upper part of the B-axis rotary table 5, and the processing parameters are input to process the workpiece through the tool assembly 6. During the processing, the static pressure guide table 2, the inclination adjustment mechanism 4 and the B-axis rotary table 5 adjust the position of the aspheric workpiece according to the set parameters, and the Z-axis slide table 3 adjusts the position of the tool assembly 6 according to the set parameters, so that the aspheric workpiece can be fully processed;

[0032] During the process of the static pressure guide table 2 moving the upper B-axis rotary table 5, the capacitive displacement meter 11 detects the displacement of the sub-table and transmits the detection data to the control mechanism 9. The laser oscillator 12 detects the vibration of the B-axis rotary table 5 and the non-spherical workpiece on its surface, and transmits the detection data to the control mechanism 9. The optical straight line transmitter 13 projects an optical straight line on the sub-table, and then the shape measuring instrument 8 is used to detect the cutting part of the non-spherical workpiece during the processing. The shape measuring instrument 8 detects the angle in the vertical direction between the optical straight line projected by the optical straight line transmitter 13 on the surface of the sub-table and the non-spherical workpiece fixed on the upper part of the B-axis rotary table 5, and transmits the detection data to the control mechanism 9. The shape measuring instrument 8, the capacitive displacement meter 11, and the data control system 901 collects and processes the shape measuring instrument 8, the capacitive displacement meter 11, and the non-spherical workpiece fixed on the upper part of the B-axis rotary table 5. The detection data of the laser oscillator 12 and the optical linear transmitter 13 are analyzed at the same time to form control parameters and visualization data, and then the control module 908 controls the servo drive system 902 according to the control parameters, and the servo drive system 902 is used to control the movement of the hydrostatic guide table 2, the Z-axis slide 3, the inclination adjustment mechanism 4 and the B-axis rotary table 5. The movement of the hydrostatic guide table 2, the Z-axis slide 3, the inclination adjustment mechanism 4 and the B-axis rotary table 5 is adjusted according to the detection data to ensure the accuracy of the non-spherical workpiece on the upper part of the B-axis rotary table 5 during long-distance movement, thereby improving the accuracy of the machine tool during operation. The grinding wheel mechanism 7 can be used to perform fine grinding operations on the non-spherical workpiece, and the lighting device 10 can be used to supplement the surface of the non-spherical workpiece, which is convenient for observation and detection during the processing process.

[0033] Embodiment 2: According to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, a tool positioning device is installed on the surface of the Z-axis slide 3, and the tool positioning device is located on the side of the tool assembly 6. A grinding wheel mechanism 7 is installed on the side of the inclination adjustment mechanism 4. An illuminating device 10 is fixedly connected to the upper part of the bed 1. The control mechanism 9 includes a data control system 901, a servo drive system 902, a correction control system 903 and a communication system 904. The data control system 901 is used to collect and process the detection data of the shape measuring instrument 8, the capacitive displacement meter 11, the laser oscillator 12 and the optical linear transmitter 13, and the data control system 901 analyzes the collected data and forms a control system. The data control system 901 includes a control module 908, which controls the servo drive system 902 according to the control parameters. The servo drive system 902 is used to control the movement of the static pressure guide table 2, the Z-axis slide 3, the inclination adjustment mechanism 4 and the B-axis rotary table 5. The correction control system 903 is used to correct the error between the operation result and the set result of the servo drive system 902. The communication system 904 is used to transmit the operation data to an external data center. The data control system 901 includes a data acquisition and processing module 905. Module 905 includes a signal processing unit, a real-time data acquisition and processing unit module and a data synchronization unit. The signal processing unit is used to filter and amplify the collected data. The real-time data acquisition and processing unit module is used to set the data acquisition frequency and process the sampled data. The data synchronization unit is used to synchronize the control parameters of the data control system 901 to the correction control system 903. The data control system 901 includes a data analysis module 906. The data analysis module 906 includes a real-time analysis unit and a post-analysis. The real-time analysis unit is used to analyze the sampled data for real-time analysis and generate control parameters. The post-analysis is used to perform trend analysis on historical data and predict operational failures based on trend analysis. The data control system 901 includes a visualization and alarm module 907. The visualization and alarm module 907 includes a data display unit and an alarm mechanism unit. The data display unit displays the control parameters and trend analysis data through the dashboard. The alarm mechanism unit sets the maximum error threshold according to the processing accuracy requirements of the aspheric workpiece. When the error exceeds the set threshold during the real-time aspheric workpiece processing, an alarm is triggered. The communication system 904 uses wireless communication equipment.

[0034] In the present invention, the collected signal data is filtered and amplified by the data acquisition and processing module 905 to improve the signal strength and data accuracy. At the same time, different data acquisition frequencies are set according to different precision requirements to improve the accuracy of data acquisition while avoiding excessive processing of data, which leads to reduced system operation efficiency. At the same time, the data is transmitted to the correction control system 903 through the data synchronization unit to provide data support for the operation of the correction control system 903. The real-time analysis unit samples the data and performs real-time analysis and generates control parameters. During the operation of the machine tool, real-time correction of the operation parameters can be achieved to ensure that the accuracy of each operation step does not exceed the set error. Post-analysis is used to perform trend analysis on historical data, and operation failures are predicted based on trend analysis, thereby improving the stability of the machine tool operation and facilitating maintenance of the machine tool. The control parameters and trend analysis data are displayed on the dashboard, which is convenient for the operator to observe the operation status of the machine tool in real time. When the error exceeds the set threshold during the real-time aspheric workpiece processing, the alarm is triggered by the alarm mechanism unit to remind the operator in time.

[0035] Embodiment 3: According to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the servo drive system 902 includes a drive control module 909 and a signal feedback module 910. The drive control module 909 is used to control the operation of the drive device, and the signal feedback module 910 is used to provide real-time feedback on the position and speed of the drive device. The correction control system 903 includes a drive result comparison module 911, a control algorithm module 912 and an execution module 913. The drive result comparison module 911 is used to compare the control parameters of the data control system 901 with the control results of the servo drive system 902. The control algorithm module 912 performs calculations based on the comparison results and generates correction parameters. The execution module 913 transmits the correction parameters to the data control system 901.

[0036] In the present invention, the operation of the driving device is controlled by the driving control module 909, and the position, speed and other parameters of the driving device are fed back in real time by the signal feedback module 910. Finally, the control parameters of the data control system 901 and the control results of the servo driving system 902 are compared by the driving result comparison module 911. The control algorithm module 912 calculates according to the comparison results and generates correction parameters. The execution module 913 transmits the correction parameters to the data control system 901, corrects the error between the operating result of the servo driving system 902 and the set result, so as to achieve real-time monitoring and adjustment of the movement accuracy of the aspheric workpiece during operation, avoid the accumulation of movement errors, and ensure the accuracy of machine tool operation.

[0037] The use method and working principle of the device are as follows: the non-spherical workpiece is mounted on the upper part of the B-axis rotary table 5, and the processing parameters are input to process the workpiece through the tool assembly 6. During the processing, the static pressure guide table 2, the inclination adjustment mechanism 4 and the B-axis rotary table 5 adjust the position of the non-spherical workpiece according to the set parameters, and at the same time, the Z-axis slide table 3 adjusts the position of the tool assembly 6 according to the set parameters;

[0038] During the process of the static pressure guide table 2 moving the upper B-axis rotary table 5, the capacitive displacement meter 11 detects the displacement of the sub-table and transmits the detection data to the control mechanism 9. The laser oscillator 12 detects the vibration of the B-axis rotary table 5 and the non-spherical workpiece on its surface, and transmits the detection data to the control mechanism 9. The optical straight line is projected on the sub-table by the optical straight line transmitter 13, and then the shape measuring instrument 8 is used to detect the cutting part of the non-spherical workpiece during the processing. The shape measuring instrument 8 projects the optical straight line on the surface of the sub-table by the optical straight line transmitter 13 and the non-spherical workpiece fixed on the upper part of the B-axis rotary table 5 in the vertical direction. The angle is detected, and the detection data is transmitted to the control mechanism 9, and the detection data of the shape measuring instrument 8, the capacitive displacement meter 11, the laser oscillator 12 and the optical linear transmitter 13 are collected and processed by the data control system 901, and the collected data are analyzed to form control parameters and visualization data, and then the control module 908 controls the servo drive system 902 according to the control parameters, and the servo drive system 902 is used to control the movement of the hydrostatic guide table 2, the Z-axis slide 3, the inclination adjustment mechanism 4 and the B-axis rotary table 5, and the movement of the hydrostatic guide table 2, the Z-axis slide 3, the inclination adjustment mechanism 4 and the B-axis rotary table 5 is adjusted according to the detection data;

[0039] The operation of the driving device is controlled by the driving control module 909, and the position, speed and other parameters of the driving device are fed back in real time by the signal feedback module 910. Finally, the control parameters of the data control system 901 and the control results of the servo driving system 902 are compared by the driving result comparison module 911. The control algorithm module 912 calculates according to the comparison results and generates correction parameters. The execution module 913 transmits the correction parameters to the data control system 901 to correct the error between the operation result of the servo driving system 902 and the set result.

[0040] The collected signal data is filtered and amplified by the data acquisition and processing module 905 to improve the signal strength and data accuracy. At the same time, different data acquisition frequencies are set according to different precision requirements to improve data acquisition accuracy while avoiding excessive processing of data, which leads to reduced system operation efficiency. At the same time, the data is transmitted to the correction control system 903 through the data synchronization unit to provide data support for the operation of the correction control system 903. The real-time analysis unit samples the data and generates control parameters. During the operation of the machine tool, real-time correction of the operation parameters can be achieved to ensure that the accuracy of each operation step does not exceed the set threshold. Post-analysis is used to perform trend analysis on historical data, and operation failures are predicted based on trend analysis.

[0041] The control parameters and trend analysis data are displayed on the dashboard, which is convenient for the operator to observe the operating status of the machine tool in real time. When the error exceeds the set threshold during the real-time aspheric workpiece processing, the alarm is triggered through the alarm mechanism unit.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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 CNC ultra-precision aspheric machining machine for grinding or cutting surface shapes, comprising a bed (1), a static pressure guide table (2) is installed on the upper part of the bed (1), and a Z-axis slide table (3) is installed on the upper part of the bed (1), and the static pressure guide table (2) is located below the Z-axis slide table (3), characterized in that: A sub-platform is installed on the top of the static pressure guide platform (2), and an inclination adjustment mechanism (4) is fixedly connected to the top of the sub-platform. A B-axis rotating worktable (5) is fixedly connected to the surface of the inclination adjustment mechanism (4). The B-axis rotating worktable (5) is located below the Z-axis slide (3). A shape measuring instrument (8) is fixedly connected to the top of the Z-axis slide (3). The shape measuring instrument (8) is located above the B-axis rotating worktable (5). A laser oscillator (12) is fixedly connected to the surface of the bed (1). The laser oscillator (12) is located on the side of the B-axis rotary table (5); the upper part of the bed (1) is fixedly connected to a control mechanism (9); the surface of the static pressure guide table (2) is installed with a capacitive displacement meter (11); the capacitive displacement meter (11) is located on the side of the auxiliary table; the surface of the auxiliary table is fixedly connected to an optical linear transmitter (13); the B-axis rotary table (5) is used to fix a non-spherical workpiece; the inclination adjustment mechanism (4) is used to adjust the inclination of the B-axis rotary table (5); The capacitive displacement meter (11) is used to detect the swing distance when the sub-table moves, the laser oscillator (12) is used to detect the vibration amplitude of the non-spherical workpiece and the B-axis rotary table (5) during the processing of the non-spherical workpiece, the optical straight line transmitter (13) is used to project an optical straight line on the surface of the sub-table, the shape measuring instrument (8) is used to detect the cutting part of the non-spherical workpiece during the processing, and the shape measuring instrument (8) detects the angle in the vertical direction between the optical straight line projected by the optical straight line transmitter (13) on the surface of the sub-table and the non-spherical workpiece fixed on the upper part of the B-axis rotary table (5), the control mechanism (9) is used to collect the detection data of the shape measuring instrument (8), the capacitive displacement meter (11), the laser oscillator (12) and the optical straight line transmitter (13), and the control mechanism (9) is used to process the collected data and issue control instructions, and a tool positioning device is installed on the surface of the Z-axis slide (3), and the tool positioning device is located on the side of the tool assembly (6).

2. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 1, characterized in that: A grinding wheel mechanism (7) is installed on the side of the inclination adjustment mechanism (4), and a lighting device (10) is fixedly connected to the upper part of the bed (1).

3. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 1, characterized in that: The control mechanism (9) comprises a data control system (901), a servo drive system (902), a correction control system (903) and a communication system (904); the data control system (901) is used to collect and process detection data of a shape measuring instrument (8), a capacitive displacement meter (11), a laser oscillator (12) and an optical linear transmitter (13); the data control system (901) analyzes the collected data and forms control parameters and visual data; the data control system (901) comprises a control module (908); the control module (908) controls the servo drive system (902) according to the control parameters; the servo drive system (902) is used to control the movement of a static pressure guide table (2), a Z-axis slide table (3), an inclination adjustment mechanism (4) and a B-axis rotary table (5); the correction control system (903) is used to correct the error between the operation result and the set result of the servo drive system (902); and the communication system (904) is used to transmit the operation data to an external data center.

4. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 3, characterized in that: The data control system (901) comprises a data acquisition and processing module (905), wherein the data acquisition and processing module (905) comprises a signal processing unit, a real-time data acquisition and processing unit module and a data synchronization unit, wherein the signal processing unit is used for filtering and amplifying the collected data, the real-time data acquisition and processing unit module is used for setting the data acquisition frequency and processing the sampled data, and the data synchronization unit is used for synchronizing the control parameters of the data control system (901) to the deviation correction control system (903).

5. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 4, characterized in that: The data control system (901) includes a data analysis module (906), and the data analysis module (906) includes a real-time analysis unit and a post-analysis unit. The real-time analysis unit is used to analyze the sampled data and generate control parameters. The post-analysis is used to perform trend analysis on historical data and predict operational faults based on the trend analysis.

6. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 5, characterized in that: The data control system (901) includes a visualization and alarm module (907), and the visualization and alarm module (907) includes a data display unit and an alarm mechanism unit. The data display unit displays control parameters and trend analysis data through a dashboard. The alarm mechanism unit sets a maximum error threshold according to the processing accuracy requirements of the aspheric workpiece, and triggers an alarm when the error exceeds the set threshold during the real-time processing of the aspheric workpiece.

7. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 6, characterized in that: The servo drive system (902) comprises a drive control module (909) and a signal feedback module (910), wherein the drive control module (909) is used to control the operation of the drive device, and the signal feedback module (910) is used to provide real-time feedback on the position and speed of the drive device.

8. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 7, characterized in that: The correction control system (903) comprises a drive result comparison module (911), a control algorithm module (912) and an execution module (913); the drive result comparison module (911) is used to compare the control parameters of the data control system (901) with the control results of the servo drive system (902); the control algorithm module (912) performs calculations based on the comparison results and generates correction parameters; and the execution module (913) transmits the correction parameters to the data control system (901).

9. A CNC ultra-precision aspheric surface machining machine tool for grinding or cutting surface shape according to claim 3, characterized in that: The communication system (904) uses wireless communication equipment.

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