Method for improving reliability of horizontal machining center

Abstract

The invention relates to the technical field of horizontal machining, and discloses a method for improving reliability of a horizontal machining center, which comprises the following steps: acquiring initial information data of the horizontal machining center, and determining an initial rotating speed, a position and a machining path of the machining center; data of the main shaft vibration frequency, the feed shaft temperature and the tool magazine tool changing position of the horizontal machining center and a preset machining parameter threshold value are obtained, and whether abnormal data exist or not is judged; processing result data obtained after the abnormal data execute the corresponding processing adjustment strategy is obtained, a historical database is established, and the processing parameter threshold value is adjusted in combination with the processing result data. According to the method, the processing process is accurately controlled by dynamically monitoring the abnormity, adjusting the strategy in a grading manner and optimizing the threshold value according to the historical data, and the operation reliability and stability of the horizontal processing center are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of horizontal machining, in particular to a method for improving the reliability of a horizontal machining center. BACKGROUND

[0002] With the development of manufacturing industry towards high precision and high efficiency, the application of horizontal machining center in the fields of aerospace and automobile manufacturing is becoming more and more widespread, and the requirement for its operation reliability is also continuously improving. During the machining process, problems such as spindle vibration and abnormal temperature of feed shaft frequently occur, which can easily lead to a decrease in machining precision, an increase in equipment wear, and even cause production interruption.

[0003] The traditional method for improving the reliability of horizontal machining center relies on fixed parameter thresholds and manual experience adjustment, and lacks dynamic monitoring and analysis of abnormal data during the machining process. When abnormal data occurs, it is difficult to optimize and adjust the strategy according to the actual machining conditions and historical data, often resulting in over-adjustment or insufficient adjustment, affecting the machining efficiency and product quality stability.

[0004] Therefore, it is necessary to design a method for improving the reliability of a horizontal machining center to solve the problems of slow response to abnormal data, lack of dynamic optimization of adjustment strategy, and difficulty in adapting to complex machining conditions in the prior art. SUMMARY

[0005] In view of this, the present application provides a method for improving the reliability of a horizontal machining center, which aims to solve the problems of slow response to abnormal data, lack of dynamic optimization of adjustment strategy, and difficulty in adapting to complex machining conditions in the prior art.

[0006] In one aspect, the present application provides a method for improving the reliability of a horizontal machining center, comprising: obtaining initial safety position, machining workpiece and machining tool type, and initial information data of machining process of the horizontal machining center, determining the initial spindle speed, tool magazine initial position and machining path of the machining center according to the initial information data; obtaining the data of spindle vibration frequency, feed shaft temperature, tool magazine tool changing position of the horizontal machining center, and preset machining parameter threshold value, and calculating the tool magazine tool changing position deviation value according to the tool magazine initial position and tool magazine tool changing position; determining whether there is abnormal data according to the spindle vibration frequency, feed shaft temperature, tool magazine tool changing position deviation value and preset machining parameter threshold value; obtaining the abnormal number of abnormal data within a preset time and the preset abnormal number threshold value; when there is abnormal data, executing the corresponding machining adjustment strategy according to the comparison of the abnormal number and the preset abnormal number threshold value; If the number of abnormalities is less than the preset number of abnormality threshold, a first machining adjustment strategy is executed; If the number of abnormalities is greater than the preset number of abnormality threshold, a second machining adjustment strategy is executed; Obtaining machining result data after the corresponding machining adjustment strategy is executed on the abnormal data, and establishing a historical database according to the machining result data; Obtaining preset machining result standard data, and judging whether the machining adjustment strategy meets the machining requirement according to the comparison result of the machining result data and the preset machining result standard data; When the machining requirement is met, adjusting the preset machining parameter threshold and the number of abnormality threshold according to the historical database.

[0007] Further, the preset machining parameter threshold includes a preset spindle vibration frequency threshold, a feed shaft temperature threshold, and a tool magazine tool changing position deviation threshold.

[0008] Further, the abnormal data includes spindle vibration abnormality, feed shaft temperature abnormality, and tool magazine tool changing position deviation abnormality. If the spindle vibration frequency exceeds the preset spindle vibration frequency threshold, it is judged that there is spindle vibration abnormality. If the feed shaft temperature exceeds the preset feed shaft temperature threshold, it is judged that there is feed shaft temperature abnormality. If the tool magazine tool changing position deviation value exceeds the preset tool magazine tool changing position deviation threshold, it is judged that there is tool magazine tool changing position deviation abnormality.

[0009] Further, the machining adjustment strategy includes: When there is spindle vibration abnormality, if the number of abnormalities is less than the preset number of abnormality threshold, the spindle speed is reduced. If the number of abnormalities is greater than the preset number of abnormality threshold, the current machining process is paused and a warning information is sent out, and the horizontal machining center is controlled to retreat to the initial safe position along the machining path.

[0010] Further, the machining adjustment strategy further includes: Obtaining the cooling liquid temperature and the cooling liquid supply amount data of the machining center; When there is feed shaft temperature abnormality, if the number of abnormalities is less than the preset number of abnormality threshold, the cooling liquid temperature is reduced. If the number of abnormalities is greater than the preset number of abnormality threshold, the current machining process is paused and a warning information is sent out.

[0011] Further, the machining adjustment strategy further includes: Obtaining the tool magazine tool changing rotation angle and the preset tool changing rotation angle standard value; When the tool magazine tool changing position deviation anomaly exists, if the number of anomalies is less than the preset number of anomaly threshold, the tool magazine rotation angle is adjusted to the preset tool changing rotation angle standard value; If the number of anomalies is greater than the preset number of anomaly threshold, the current machining process is paused and a warning information is sent.

[0012] Further, the establishment of the historical database comprises: According to the machining workpiece, the machining tool type and the machining process, an anomaly data classification label is established; According to the occurrence of the anomaly data, an anomaly data table is created; If the anomaly data is first appeared, a data table is created for the anomaly data and a new anomaly information directory is added; If the anomaly data already exists, a new anomaly information directory is added in the corresponding data table; According to the anomaly data classification label and the data table, the historical database is established.

[0013] Further, the anomaly information directory comprises the same type of anomaly data, the corresponding number of anomalies, the machining adjustment strategy and the machining result data.

[0014] Further, when the machining requirement is reached, the preset machining parameter threshold and the number of anomaly threshold are adjusted according to the historical database, comprising: If the machining result data reaches the preset machining result standard data, it is judged that the machining adjustment strategy reaches the machining requirement; The anomaly information directory in the historical database and the preset continuous machining number are obtained; According to the variation trend of the number of anomalies of the same type of anomaly data within the preset continuous machining number, the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data are adjusted.

[0015] Further, the adjustment of the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data comprises: If the number of anomalies of the same type of anomaly data within the preset continuous machining number increases, the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data are increased; If the number of anomalies of the same type of anomaly data within the preset continuous machining number decreases, the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data are decreased.

[0016] Compared with the prior art, the beneficial effects of the present application are: The application can respond to abnormal conditions in processing in time by dynamically acquiring initial information of the machining center to determine operation parameters, monitoring and judging abnormal data in real time, and executing corresponding adjustment strategies according to the number of abnormalities; meanwhile, the information is recorded to establish a historical database, and the parameter threshold is dynamically adjusted by combining comparison of processing results and standard data and the change trend of the number of abnormalities, so that the limitations of fixed threshold values are avoided, processing adjustment is more in line with actual working conditions, and the situation of excessive adjustment or insufficient adjustment is reduced, thereby improving the stability of the machining center operation, ensuring the processing quality, and adapting to different processing requirements. BRIEF DESCRIPTION OF DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the application. Moreover, the same reference numerals are used throughout the various drawings to designate similar or equivalent parts. In the drawings: Figure 1 A flowchart of a method for improving the reliability of a horizontal machining center is provided. DETAILED DESCRIPTION

[0018] Exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the description herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0019] The present disclosure develops a method for improving the reliability of a horizontal machining center, which can solve the problems of lagging response to abnormal data, lack of dynamic optimization of adjustment strategies, and difficulty in adapting to complex processing conditions in the prior art.

[0020] Reference Figure 1 In some embodiments of the present application, a method for improving the reliability of a horizontal machining center comprises: S1, acquiring initial information data of an initial safe position of a horizontal machining center, a processing workpiece, a processing tool type, and a processing procedure, and determining an initial spindle speed of the machining center, an initial position of a tool magazine, and a processing path according to the initial information data; S2, acquiring data of a spindle vibration frequency, a feed shaft temperature, a tool magazine tool changing position of the horizontal machining center, and a preset processing parameter threshold value, and calculating a tool magazine tool changing position deviation value according to the initial position of the tool magazine and the tool magazine tool changing position; S3, determining whether there is abnormal data according to the spindle vibration frequency, the feed shaft temperature, the tool magazine tool changing position deviation value and the preset machining parameter threshold value; obtaining an abnormal number of times of abnormal data within a preset time and a preset abnormal number of times threshold value; When there is abnormal data, a corresponding machining adjustment strategy is executed according to the comparison of the abnormal number of times and the preset abnormal number of times threshold value; If the abnormal number of times is less than the preset abnormal number of times threshold value, a first machining adjustment strategy is executed; If the abnormal number of times is greater than the preset abnormal number of times threshold value, a second machining adjustment strategy is executed; S4, obtaining machining result data after the corresponding machining adjustment strategy is executed on the abnormal data, and establishing a historical database according to the machining result data; S5, obtaining preset machining result standard data, and determining whether the machining adjustment strategy meets machining requirements according to the comparison of the machining result data and the preset machining result standard data; When the machining requirements are met, the preset machining parameter threshold value and the abnormal number of times threshold value are adjusted according to the historical database.

[0021] Specifically, the initial safe position refers to a reference position in which the spindle, the tool and other components do not collide with the workpiece and the fixture during the machining process; the machining workpiece type includes the hardness of the workpiece material, and the machining tool type includes the size of the tool; the machining process refers to machining steps such as rough machining and finish machining.

[0022] Specifically, the initial spindle speed includes a first initial spindle speed and a second initial spindle speed, and the first initial spindle speed is less than the second initial spindle speed. When the type of the machining workpiece is a material with high hardness and the machining process is rough machining with large cutting amount, the first initial spindle speed is selected. When the type of the machining workpiece is a material with low hardness and the machining process is finish machining with small cutting amount, the second initial spindle speed is selected. At the same time, the initial spindle speed is further determined in combination with the tool type. When a large-diameter tool is used, the initial spindle speed is reduced. When a small-diameter tool is used, the initial spindle speed is increased.

[0023] It can be understood that by comprehensively considering the workpiece material, the machining process and the tool type, the initial spindle speed can be more accurately determined to adapt to different machining requirements.

[0024] It can be understood that the real-time obtained spindle vibration frequency, feed shaft temperature and tool magazine tool changing position deviation value are compared with the preset machining parameter threshold value, and if the machining parameter threshold value is exceeded, the data is determined as abnormal data.

[0025] Specifically, the first processing adjustment strategy is to adjust the processing parameters of the machining center, and the second processing adjustment strategy is to adjust the processing process of the machining center and issue a warning message.

[0026] It can be seen that by monitoring key parameters in real time and executing adjustment strategies in stages, abnormal expansion can be timely contained, and the risk of equipment damage and workpiece rejection can be reduced.

[0027] It can be seen that by adjusting the threshold value based on the historical database and the processing result feedback, the limitations of the fixed threshold value can be avoided, the parameters can be more in line with the actual processing conditions, and the processing stability can be improved.

[0028] It can be seen that through the closed-loop control of monitoring data, adjusting parameters, recording data, and optimizing parameters, it is ensured that the processing process always revolves around the qualified standard, and the product qualified rate is improved.

[0029] It can be seen that the first processing adjustment strategy only fine-tunes the processing parameters, and the second processing adjustment strategy controls the processing process. Through the hierarchical strategy, unnecessary downtime is reduced, and through data accumulation, the process is continuously optimized, and invalid working hours are reduced.

[0030] Referring to Figure 1 In some embodiments of the present application, the preset processing parameter threshold value includes a preset spindle vibration frequency threshold value, a feed shaft temperature threshold value, and a tool magazine tool changing position deviation threshold value.

[0031] Referring to Figure 1 In some embodiments of the present application, the abnormal data includes spindle vibration abnormalities, feed shaft temperature abnormalities, and tool magazine tool changing position deviation abnormalities.

[0032] Specifically, if the spindle vibration frequency exceeds the preset spindle vibration frequency threshold value, it is determined that there is a spindle vibration abnormality; if the feed shaft temperature exceeds the preset feed shaft temperature threshold value, it is determined that there is a feed shaft temperature abnormality; and if the tool magazine tool changing position deviation value exceeds the preset tool magazine tool changing position deviation threshold value, it is determined that there is a tool magazine tool changing position deviation abnormality.

[0033] It can be understood that the abnormal data includes three types of abnormalities, and by clearly defining the three types of abnormalities, the fault position of the machining center can be quickly located, blind troubleshooting can be avoided, and the problem solving efficiency can be improved.

[0034] It can be understood that the determination logic for different abnormal types can identify hidden dangers affecting processing quality at an early stage, such as precision out-of-tolerance caused by excessive vibration, and equipment safety risks, such as motor damage caused by excessive temperature, and take intervention measures in advance.

[0035] It can be seen that, due to different causes and effects of the three abnormal phenomena, such as the vibration abnormality related to spindle balance and the temperature abnormality related to heat dissipation, clear judgment criteria can provide a basis for subsequent implementation of differentiated adjustment strategies and improve the effectiveness of adjustment.

[0036] Referring to Figure 1 In some embodiments of the present application, the processing adjustment strategy comprises: When there is a spindle vibration abnormality, if the number of abnormalities is less than a preset number of abnormality threshold, the spindle speed is reduced; If the number of abnormalities is greater than the preset number of abnormality threshold, the current processing process is suspended and a warning information is issued, and the horizontal machining center is controlled to retreat to the initial safe position along the processing path.

[0037] Specifically, reducing the spindle speed can reduce the spindle vibration amplitude.

[0038] Specifically, the warning information can be issued in the form of a machining center operation panel, an indicator light, or a sound, etc., for informing the operator of the abnormal situation.

[0039] Specifically, when the spindle vibration frequency is less than a preset spindle vibration frequency threshold, the reduction of the spindle speed is stopped.

[0040] It can be understood that, when the number of abnormalities is small, it indicates that the vibration is sporadic or slight, at which time reducing the speed can reduce the centrifugal force, thereby reducing the vibration frequency and amplitude, and making the spindle operation tend to be stable, while avoiding the processing interruption caused by shutdown. When the number of abnormalities exceeds the threshold, it indicates that the vibration problem is persistent or aggravated, and there may be serious mechanical failure, and continuing processing will lead to a sharp decline in processing accuracy, and even cause equipment damage or safety accidents. Therefore, the processing needs to be immediately suspended and retreated to the initial safe position to prevent collision risks, and the operator is prompted to repair in time through the warning.

[0041] Referring to Figure 1 In some embodiments of the present application, the processing adjustment strategy further comprises: Obtaining cooling liquid temperature and cooling liquid supply data of the machining center; When there is a feed shaft temperature abnormality, if the number of abnormalities is less than a preset number of abnormality threshold, the cooling liquid temperature is reduced; If the number of abnormalities is greater than the preset number of abnormality threshold, the current processing process is suspended and a warning information is issued.

[0042] Specifically, when the feed shaft temperature is less than a preset feed shaft temperature threshold, the reduction of the cooling liquid temperature is stopped.

[0043] It can be understood that, suspending the current processing process can interrupt the ongoing processing operation, so that the feed shaft stops running to reduce heat generation.

[0044] It can be understood that during the operation of the feed shaft, the motor operation and mechanical friction will continuously generate heat, which needs to be taken away by the cooling liquid to maintain the temperature stable. When the number of temperature abnormalities is small, it indicates that the heat accumulation is within a controllable range, at this time, reducing the cooling liquid temperature can enhance its heat dissipation capacity, by increasing the temperature difference between the cooling liquid and the feed shaft, accelerating the heat transfer, making the feed shaft temperature fall back to the normal range, without interrupting the processing to restore the heat balance. When the number of abnormalities exceeds the threshold, it indicates that the feed shaft heat dissipation system may have a fault, and continuing to process will cause the thermal deformation of the feed shaft to intensify, affecting the transmission accuracy, and even burning the motor. Therefore, the processing needs to be paused and a warning needs to be issued to avoid equipment damage.

[0045] Referring to Figure 1 In some embodiments of the present application, the processing adjustment strategy further comprises: obtaining the tool magazine tool changing rotation angle and the preset tool changing rotation angle standard value; When there is a tool magazine tool changing position deviation anomaly, if the number of abnormalities is less than the preset number of abnormalities threshold, the tool magazine rotation angle is adjusted to the preset tool changing rotation angle standard value; If the number of abnormalities is greater than the preset number of abnormalities threshold, the current processing is paused and a warning information is issued.

[0046] It can be understood that the generation of the tool magazine tool changing position deviation is mostly related to the rotation shaft positioning error, transmission gap or sensor failure. When the number of abnormalities is small, it indicates that the deviation is occasional or slight, at this time, by adjusting the rotation angle to the standard value, the positioning error can be directly corrected to ensure accurate tool loading and unloading, and avoid tool changing failure caused by slight deviation. When the number of abnormalities exceeds the threshold, it indicates that the deviation continues to exist or gradually expands, and there may be serious problems such as mechanical part wear, motor failure, etc., and continuing to change the tool will cause the tool to collide with the spindle, the workpiece or fail to normally clamp the tool, causing equipment damage or processing interruption. Therefore, the processing needs to be immediately paused and a warning needs to be issued to allow the operator to troubleshoot the root cause.

[0047] Referring to Figure 1 In some embodiments of the present application, the establishment of the historical database comprises: establishing an abnormal data classification label according to the processed workpiece, the processing tool type and the processing procedure; creating an abnormal data table according to the occurrence of the abnormal data; if the abnormal data is first appeared, creating a data table for the abnormal data and adding an abnormal information directory; if the abnormal data already exists, adding a new abnormal information directory in the data table corresponding to the abnormal data; establishing a historical database according to the abnormal data classification label and the data table.

[0048] Specifically, first, according to the material of the processed workpiece, the type of processing tool and the processing procedure, the corresponding abnormal data classification label is generated. Then, according to the occurrence of abnormal data, the data table is processed: when a certain abnormal data, such as spindle vibration abnormality, is detected for the first time, the system creates a separate data table for it, which contains fields such as abnormal occurrence time, abnormal value, corresponding classification label, etc., and adds abnormal information directory record details; if the abnormal data already exists, a new record is added to the corresponding data table, and new abnormal information directory is supplemented. Finally, the system classifies and integrates all data tables with classification labels according to the processing scene to form a historical database, and establishes an association index between the label and the data table, which facilitates subsequent query and call.

[0049] It can be understood that different processing workpieces, tool types and procedures have different requirements for the operation of the machining center, and the causes and effects of abnormal data also differ. Through classification labels, abnormal data can be associated with specific processing scenes for subsequent targeted analysis.

[0050] It can be understood that the first occurrence of abnormal data needs to be separately created in a data table to ensure complete information recording; the existing abnormal data is supplemented with new information in the corresponding table to realize centralized management of similar data. This structured storage method can clearly present the rules of abnormal data, provide a basis for optimizing processing parameters and adjusting strategies, and avoid analysis difficulties caused by chaotic data.

[0051] It can be seen that through the classification label and the data table, the abnormal data is orderly stored, avoiding chaotic data, facilitating quick positioning of abnormal information in a specific processing scene, and improving data query efficiency; the centralized recording of similar abnormal data can clearly present the frequency and trend of its occurrence in different processing scenes, providing a reliable data basis for subsequent adjustment of processing parameter threshold and abnormal number threshold; the association of abnormal data and classification labels in the historical database enables the machining adjustment strategy to accurately adapt to different processing workpieces, tools and procedures, avoiding the limitations of general strategies and enhancing the adjustment effect; as the database is continuously improved, it can sediment abnormal processing experience in different processing scenes, provide reference for new processing tasks, reduce trial and error cost, and improve the overall operation reliability of the machining center.

[0052] Referring to Figure 1 In some embodiments of the present application, the abnormal information directory includes the same type of abnormal data and its corresponding abnormal number, processing adjustment strategy and processing result data.

[0053] Referring to Figure 1 In some embodiments of the present application, when the processing requirement is met, the preset processing parameter threshold and abnormal number threshold are adjusted according to the historical database, including: If the processing result data reaches the preset processing result standard data, it is determined that the processing adjustment strategy meets the processing requirement. Obtain the abnormal information directory in the historical database and the preset continuous processing number; According to the abnormal number change trend of the same type of abnormal data within the preset continuous processing number, adjust the processing parameter threshold and the abnormal number threshold corresponding to the same type of abnormal data.

[0054] Reference Figure 1 In some embodiments of the present application, the adjustment of the processing parameter threshold and the abnormal number threshold corresponding to the same type of abnormal data includes: If the abnormal number of the same type of abnormal data within the preset continuous processing number increases, the processing parameter threshold and the abnormal number threshold corresponding to the same type of abnormal data are increased; If the abnormal number of the same type of abnormal data within the preset continuous processing number decreases, the processing parameter threshold and the abnormal number threshold corresponding to the same type of abnormal data are decreased.

[0055] Specifically, the processing result data is compared with the preset processing result standard data, and if it meets the standard, it is determined that the processing adjustment strategy meets the processing requirement. Then, the abnormal information directory of the same type of abnormal data is retrieved from the historical database, and the preset continuous processing number, such as 5 times, is determined. Then, the abnormal number within the continuous processing number is counted, and its change trend is analyzed: if the abnormal number is 4, 3, 2, 1, 1 in turn, it shows a downward trend, and the corresponding processing parameter threshold is reduced, such as the spindle vibration frequency threshold from 50Hz to 45Hz, and the abnormal number threshold, such as from 3 to 2; if the abnormal number is 1, 2, 3, 4, 5 in turn, it shows an upward trend, and the processing parameter threshold is increased, such as the feed shaft temperature threshold from 60℃ to 65℃, and the abnormal number threshold, such as from 3 to 4. After adjustment, the new threshold will be applied to the subsequent processing process, and the threshold record in the historical database is updated It can be understood that when the processing result data meets the standard, it means that the current processing adjustment strategy is effective for the processing of this type of abnormal data. At this time, the change trend of the abnormal number of the same type of abnormal data stored in the historical database can reflect the stability of the processing system under this strategy. If the abnormal number shows a downward trend in continuous processing, it means that the control ability of the horizontal bed machining center for this abnormality is enhanced, and the parameter threshold can be appropriately reduced to improve the monitoring sensitivity; if the abnormal number shows an upward trend, it means that there may be potential deterioration of the processing process or change of the processing condition, and the parameter threshold needs to be increased to avoid excessive adjustment affecting the processing efficiency. This dynamic adjustment based on historical data makes the parameter threshold more suitable for the actual processing state, and realizes the balance between reliability and efficiency.

[0056] It can be understood that the adjustment of the threshold value based on the change trend of the historical data avoids the limitation of the fixed threshold value, makes the parameters more adaptive to the dynamic changes of the machining system, and improves the accuracy of the abnormality judgment; through the sensitive threshold value adjustment, the monitoring is strengthened when the number of abnormalities decreases, potential problems are prevented in advance; the threshold value is reasonably relaxed when the number of abnormalities increases, unnecessary adjustments are reduced, and the stable progress of the machining process is ensured; the threshold value is adjusted separately for the change trend of different types of abnormal data, the machining adjustment strategy is more targeted, and the diversified machining scenes can be better coped with; the dynamic adjustment avoids excessive downtime or insufficient adjustment caused by unreasonable threshold value setting, reduces invalid working hours under the premise of ensuring machining quality, and improves overall production efficiency It can be seen that the application realizes accurate control of the running state of the horizontal machining center by real-time acquisition of running data of key parts, automatic adjustment of the controller, early warning, and dynamic update of the parameter range, forms a closed-loop intelligent control of "monitoring - adjustment - early warning - optimization", and reduces failures caused by parameter abnormalities.

[0057] It should be noted that: In the description provided herein, a large number of specific details are explained. However, it can be understood that the embodiments of the application can be practiced without these specific details. In some examples, well-known structures and techniques are not shown in detail in order not to obscure the understanding of the present description.

[0058] Similarly, it should be understood that, in order to simplify the present application and help understand one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present application, various features of the present application are sometimes grouped together in a single embodiment, figure, or description thereof. However, the disclosed system should not be interpreted as reflecting the following schematic: the claimed application requires more features than the features explicitly recited in each claim.

[0059] More precisely, as reflected in the following claims, the inventive aspects are in less than all the features of the previously disclosed single embodiment. Therefore, the claims following the specific embodiments are hereby expressly incorporated into this specific embodiment, wherein each claim itself is a separate embodiment of the present application.

[0060] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of the present application and forms different embodiments.

[0061] For example, in the following claims, any one of the claimed embodiments can be used in any combination.

[0062] The above description is only preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for improving the reliability of a horizontal machining center, characterized in that: initial information data of the horizontal machining center, including the initial safe position, the types of workpiece and machining tool, and the machining process, is obtained, and the initial spindle speed, the initial position of the tool magazine, and the machining path of the machining center are determined according to the initial information data; the data of the spindle vibration frequency, the feed shaft temperature, the tool magazine tool changing position, and the preset machining parameter threshold value are obtained, and the tool magazine tool changing position deviation value is calculated according to the initial position of the tool magazine and the tool magazine tool changing position; it is determined whether there is abnormal data according to the spindle vibration frequency, the feed shaft temperature, the tool magazine tool changing position deviation value, and the preset machining parameter threshold value; the abnormal number of times of abnormal data within a preset time and the preset abnormal number of times threshold value are obtained; when there is abnormal data, the corresponding machining adjustment strategy is executed according to the comparison between the abnormal number of times and the preset abnormal number of times threshold value; if the abnormal number of times is less than the preset abnormal number of times threshold value, the first machining adjustment strategy is executed; if the abnormal number of times is greater than the preset abnormal number of times threshold value, the second machining adjustment strategy is executed; the machining result data after the corresponding machining adjustment strategy is executed on the abnormal data is obtained, and a historical database is established according to the machining result data; the preset machining result standard data is obtained, and it is determined whether the machining adjustment strategy meets the machining requirement according to the comparison between the machining result data and the preset machining result standard data; when the machining requirement is met, the preset machining parameter threshold value and the abnormal number of times threshold value are adjusted according to the historical database.

2. The method for improving the reliability of a horizontal machining center according to claim 1, characterized in that, The preset machining parameter threshold value includes the preset spindle vibration frequency threshold value, the feed shaft temperature threshold value, and the tool magazine tool changing position deviation threshold value.

3. The method for improving the reliability of a horizontal machining center according to claim 2, characterized in that, The abnormal data includes spindle vibration abnormality, feed shaft temperature abnormality, and tool magazine tool changing position deviation abnormality; if the spindle vibration frequency exceeds the preset spindle vibration frequency threshold value, it is determined that there is spindle vibration abnormality; if the feed shaft temperature exceeds the preset feed shaft temperature threshold value, it is determined that there is feed shaft temperature abnormality; if the tool magazine tool changing position deviation value exceeds the preset tool magazine tool changing position deviation threshold value, it is determined that there is tool magazine tool changing position deviation abnormality.

4. The method for improving the reliability of a horizontal machining center according to claim 3, characterized in that: the machining adjustment strategy includes: when there is spindle vibration abnormality, if the abnormal number of times is less than the preset abnormal number of times threshold value, the spindle speed is reduced; if the abnormal number of times is greater than the preset abnormal number of times threshold value, the current machining process is paused and a warning information is sent, and the horizontal machining center is controlled to retreat to the initial safe position along the machining path.

5. The method for improving the reliability of a horizontal machining center according to claim 4, characterized in that: the machining adjustment strategy further includes: the cooling liquid temperature and the cooling liquid supply data of the machining center are obtained; when there is feed shaft temperature abnormality, if the abnormal number of times is less than the preset abnormal number of times threshold value, the cooling liquid temperature is reduced; if the abnormal number of times is greater than the preset abnormal number of times threshold value, the current machining process is paused and a warning information is sent.

6. The method of increasing the reliability of a horizontal machining center according to claim 5, characterized in that, the machining adjustment strategy further includes: the tool magazine tool changing rotation angle and the preset tool changing rotation angle standard value are obtained; When there is a tool magazine tool changing position deviation anomaly, if the number of anomalies is less than a preset number of anomaly threshold, the tool magazine rotation angle is adjusted to a preset tool changing rotation angle standard value; If the number of anomalies is greater than the preset number of anomaly threshold, the current machining process is paused and a warning message is sent.

7. The method of increasing the reliability of a horizontal machining center according to claim 6, characterized in that, The establishment of the historical database includes: According to the machining workpiece, the machining tool type, and the machining process, an anomaly data classification label is established; According to the occurrence of the anomaly data, an anomaly data table is created; If the anomaly data is first occurring, a data table is created for the anomaly data and an anomaly information directory is added; If the anomaly data already exists, a new anomaly information directory is added in the corresponding data table; According to the anomaly data classification label and the data table, a historical database is established.

8. The method of increasing the reliability of a horizontal machining center according to claim 7, characterized in that, The anomaly information directory includes the same type of anomaly data, the corresponding number of anomalies, the machining adjustment strategy, and the machining result data.

9. The method for improving the reliability of a horizontal machining center according to claim 8, wherein, When the machining requirements are met, the preset machining parameter threshold and the number of anomaly threshold are adjusted according to the historical database, including: If the machining result data meets the preset machining result standard data, it is determined that the machining adjustment strategy meets the machining requirements; The anomaly information directory in the historical database and the preset number of continuous machining are obtained; According to the change trend of the number of anomalies of the same type of anomaly data within the preset number of continuous machining, the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data are adjusted.

10. The method of increasing the reliability of a horizontal machining center according to claim 9, characterized in that, The adjustment of the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data includes: If the number of anomalies of the same type of anomaly data within the preset number of continuous machining increases, the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data are increased; If the number of anomalies of the same type of anomaly data within the preset number of continuous machining decreases, the machining parameter threshold and the number of anomaly threshold corresponding to the same type of anomaly data are decreased.

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