A method and system for detecting an oil seal assembly

Abstract

The present application relates to the technical field of oil seal assembly detection, and particularly relates to an oil seal assembly detection method and system. The method obtains the equipment pressure and reaction force of industrial components in the oil seal assembly process; according to the difference between the reaction force at each moment and the adjacent previous moment, and the time sequence position at each moment, the oil seal edge pressing degree at each moment is obtained, and the edge pressing industrial components are screened out and the initial edge pressing moment of the edge pressing industrial components is determined; according to the difference between the equipment pressure and reaction force of the edge pressing industrial components at each moment after the initial edge pressing moment, and the difference between the reaction forces at adjacent moments, the continuously edge pressing industrial components, the abnormal edge pressing industrial components and the normal edge pressing industrial components are obtained. The present application accurately analyzes the relationship between the equipment pressure and reaction force in the oil seal assembly process, and the change of the reaction force, improves the accuracy of the edge pressing analysis and oil seal assembly detection, and effectively avoids the incorrect identification of the oil seal assembly.

Description

Technical Field

[0001] This invention relates to the field of oil pack assembly and testing technology, and specifically to an oil pack assembly and testing method and system. Background Technology

[0002] Oil seals, as core components of mechanical sealing systems, are widely used in industrial components such as automotive engines and transmissions. Their core function is to prevent oil leakage and the intrusion of external contaminants. Real-time monitoring is required during the oil seal assembly process to ensure its accuracy and suitability.

[0003] Existing methods rely on manual visual inspection or simple pressure threshold methods to determine whether there is edge jamming during the oil seal assembly process, thereby identifying any oil seal assembly abnormalities in industrial components. However, in practice, existing methods cannot capture the millisecond-level edge pressing phenomenon when the oil seal edge is stuck into the mounting groove, leading to inaccurate edge jamming detection. Furthermore, industrial components with edge jamming may recover normally during subsequent oil sealing processes, making it impossible to accurately detect oil seal assembly abnormalities using existing methods. Summary of the Invention

[0004] To address the technical problem of inaccurate detection of abnormal oil package assembly conditions, the present invention aims to provide an oil package assembly detection method and system, the specific technical solution of which is as follows:

[0005] In a first aspect, one embodiment of the present invention provides an oil package assembly detection method, the method comprising the following steps:

[0006] Obtain the equipment pressure and reaction force of each industrial component at every moment during the oil sealing and assembly process;

[0007] Based on the difference in reaction force between each industrial component at each moment during the oil sealing assembly process and the adjacent previous moment, as well as the temporal position of each moment, the degree of oil seal pressing of each industrial component at each moment during the oil sealing assembly process is obtained.

[0008] Based on the degree of oil seal pressing, the pressing industrial components are screened and the initial pressing time of each pressing industrial component is determined. According to the difference of equipment pressure and reaction force at each time after the initial pressing time of each pressing industrial component, as well as the difference of reaction force at adjacent times, the continuous pressing industrial components, abnormal pressing industrial components, and normal pressing industrial components are obtained.

[0009] Furthermore, the method for obtaining the degree of oil seal pressing is as follows:

[0010] For any industrial component and any moment in the oil sealing process, obtain the difference between the reaction force of the industrial component at that moment and the adjacent previous moment, and use it as the first characteristic value at that moment.

[0011] The duration of the time interval between the start time of the oil seal assembly of the industrial component and that time is used as the reference duration of that time.

[0012] The result of normalizing the product of the difference between the overall duration of the oil sealing assembly process of the industrial component and the reference duration, the first characteristic value, and the reciprocal of the reference duration, is taken as the degree of oil seal edge pressing at that moment.

[0013] Furthermore, the method for obtaining the edge-pressing industrial component is as follows:

[0014] Industrial components in which the oil seal pressing degree exceeds the preset oil seal pressing degree threshold during the oil seal assembly process are all classified as pressing industrial components.

[0015] Furthermore, the method for obtaining the initial pressing moment is as follows:

[0016] For any edge-pressing industrial component, the earliest time that occurs during the oil seal assembly process when the edge-pressing industrial component exceeds the preset oil seal edge-pressing degree threshold is taken as the initial edge-pressing time of the edge-pressing industrial component.

[0017] Furthermore, the method for obtaining the continuously pressed edge industrial component, the abnormally pressed edge industrial component, and the normally pressed edge industrial component is as follows:

[0018] Based on the difference in equipment pressure and reaction force at each moment after the initial pressing moment of each pressing industrial component, obtain the reference pressing moment and reference non-pressing moment of each pressing industrial component after its initial pressing moment;

[0019] The continuous pressing degree of each pressing industrial component is obtained based on the number of reference pressing moments for each pressing industrial component and the difference in equipment pressure and reaction force at each reference non-pressing moment.

[0020] When the continuous edge pressing degree exceeds the preset continuous edge pressing degree threshold, the corresponding edge pressing industrial component will be regarded as a continuous edge pressing industrial component.

[0021] When the continuous edge pressing degree is less than or equal to the preset continuous edge pressing degree threshold, the corresponding edge pressing industrial component will be regarded as the edge pressing change industrial component.

[0022] The time period consisting of the initial pressing time of each pressing-edge change industrial component and the end time of its oil seal assembly is used as the reference time period for each pressing-edge change industrial component.

[0023] The reference time period is divided into segments using the reference pressing time as the segmentation time, and the segmented local reference time periods are used as pressing analysis time periods; wherein, the initial time of each pressing analysis time period is the pressing time.

[0024] Based on the difference in reaction force at adjacent moments within the edge pressing analysis period, the time period during which the reaction force decreases and the time period during which the reaction force increases are obtained within the edge pressing analysis period.

[0025] The degree of abnormality of each edge-changing industrial component is obtained by considering the number and total duration of the reaction force decrease time period, the number of reaction force increase time period, and the number of edge-changing analysis time periods for each edge-changing industrial component.

[0026] When the degree of abnormality exceeds the preset abnormality threshold, the corresponding edge-pressing industrial component will be regarded as an abnormal edge-pressing industrial component.

[0027] When the degree of abnormality is less than or equal to the preset abnormality threshold, the corresponding edge-pressing industrial component will be regarded as a normal edge-pressing industrial component.

[0028] Furthermore, the method for obtaining the reference pressing time and the reference non-pressing time is as follows:

[0029] For any edge pressing industrial component, the normalized result of the difference between the equipment pressure and reaction force at each time after the initial edge pressing moment is used as the edge pressing analysis value of the edge pressing industrial component at the corresponding time.

[0030] When the edge pressing analysis value is less than the preset edge pressing analysis threshold, the corresponding time will be used as the reference edge pressing time for the edge pressing industrial component.

[0031] When the edge pressing analysis value is greater than or equal to the preset edge pressing analysis threshold, the corresponding time will be used as the reference non-edge pressing time for the edge pressing industrial component.

[0032] Furthermore, the method for obtaining the degree of continuous edge pressing is as follows:

[0033] For any edge-pressing industrial component, the result of negatively correlating the mean of the edge-pressing analysis values ​​at all reference non-edge-pressing times of the edge-pressing industrial component is used as the stress analysis value of the edge-pressing industrial component.

[0034] The normalized result of the product of the number of reference pressing moments of the pressing industrial component and the stress analysis value is taken as the continuous pressing degree of the pressing industrial component.

[0035] Furthermore, the method for obtaining the time period of the reaction force decrease and the time period of the reaction force increase is as follows:

[0036] For any edge compression analysis time period, obtain the first characteristic value of each moment within the edge compression analysis time period, take the moment corresponding to the first characteristic value less than 0 as the moment when the reaction force decreases, and take the moment corresponding to the first characteristic value greater than 0 as the moment when the reaction force increases.

[0037] The time interval consisting of the continuous and uninterrupted moments of decreasing reaction force is defined as the reaction force decreasing time interval.

[0038] The time interval consisting of the continuous and uninterrupted moments of rising reaction force is defined as the reaction force rising time interval.

[0039] Furthermore, the method for obtaining the degree of abnormality is as follows:

[0040] For any edge-changing industrial component, the number and total duration of the reaction force reduction time period of the edge-changing industrial component are respectively taken as the first quantity and the first duration.

[0041] The number of time intervals during which the reaction force of the pressure-changing industrial component rises is taken as the second quantity;

[0042] The number of time periods for edge-pressing analysis of the industrial component with edge-pressing variation is used as the third quantity;

[0043] The difference between the first quantity and the third quantity is taken as the first difference;

[0044] The difference between the second and third quantities is taken as the second difference;

[0045] The normalized result of the product of the first negative correlation result, the second negative correlation result, and the first duration is taken as the degree of anomaly of the industrial component with edge pressure variation.

[0046] Secondly, another embodiment of the present invention provides an oil packaging and testing system, the system comprising: a memory, a processor, and a computer program stored in the memory and running on the processor, wherein when the processor executes the computer program, it implements the steps of any of the above methods.

[0047] The present invention has the following beneficial effects:

[0048] This invention first obtains the oil seal pressing degree of each industrial component at each moment during the oil sealing assembly process based on the difference in reaction force between each moment and the adjacent previous moment, as well as the temporal position of each moment. This accurately reflects the possibility of pressing problems at each moment during the oil sealing assembly process. Then, based on the oil seal pressing degree, it accurately screens out pressing industrial components and determines the initial pressing moment of each pressing industrial component. This facilitates the subsequent accurate and efficient identification of industrial components with normal and abnormal oil sealing assembly, avoiding erroneous detection of oil sealing assembly. Furthermore, based on the differences in equipment pressure and reaction force at each moment after the initial pressing moment of each pressing industrial component, as well as the difference in reaction force at adjacent moments, it accurately analyzes the specific oil sealing assembly situation of each pressing industrial component after its initial pressing moment. This helps to accurately determine the true oil sealing assembly situation of each pressing industrial component, enabling accurate identification of continuously pressing, abnormally pressing, and normally pressing industrial components, effectively improving the accuracy of oil sealing assembly detection. Attached Figure Description

[0049] To more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic flowchart of an oil packaging and testing method provided in one embodiment of the present invention;

[0051] Figure 2 This is a structural diagram of an oil packaging and testing system provided in one embodiment of the present invention;

[0052] Figure 3 This is a schematic diagram of a computer device provided according to an embodiment of the present invention. Detailed Implementation

[0053] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of an oil packaging and testing method and system proposed according to the present invention. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0055] The following description, in conjunction with the accompanying drawings, details the specific scheme of the oil packaging and testing method and system provided by the present invention.

[0056] Example 1:

[0057] This invention proposes a method for testing oil packaging. Please refer to [link / reference]. Figure 1 The diagram illustrates a schematic flowchart of an oil packaging and testing method according to an embodiment of the present invention, which includes the following steps:

[0058] Step S1: Obtain the equipment pressure and reaction force of each industrial component at each moment during the oil sealing and assembly process.

[0059] Specifically, the oil sealing and assembly inspection system includes a loading module, a positioning module, a motion control module, and an unloading and sorting module. The loading and positioning module automatically transports the industrial components from the hopper to the designated oil sealing position via a conveyor belt and fixes them in place. The motion control module controls the slow assembly of the oil seal into the pre-designated position on the industrial component, preventing oil leakage and impurity intrusion, effectively achieving sealing and dust prevention. The unloading and sorting module classifies the inspected industrial components, distinguishing between different oil sealing conditions. Components with normal oil sealing are conveyed to the next production workshop for further processing, while those with abnormal oil sealing are conveyed to a recycling conveyor belt for recycling. It should be noted that this embodiment primarily focuses on oil sealing and assembly inspection for automotive engines; therefore, the industrial component in this embodiment is assumed to be an automotive engine. However, other industrial components requiring oil sealing and assembly are also suitable for this embodiment.

[0060] In the oil sealing assembly process of industrial components, a precise pressure control system is required to gradually apply pressure to the oil seal, strictly adhering to the material deformation characteristics and employing a segmented pressure increment strategy. This ensures that the oil seal element expands uniformly within the pre-designated position on the industrial component and completes elastic rebound, achieving a zero-gap fit between the sealing lip and the mating surface. This prevents overpressure from causing permanent deformation or skeleton displacement of the industrial component, thus ensuring the reliability of the oil sealing assembly. Therefore, the oil sealing assembly process involves equipment pressure and a reaction force. Under normal circumstances, the equipment pressure should be greater than the reaction force to ensure stable oil sealing of the industrial component. Simultaneously, as the contact area between the oil seal workpiece and the industrial component continuously increases, the reaction force also gradually increases until the oil sealing assembly is complete, reaching its maximum value. However, in actual oil sealing processes, edge pressing problems may occur at the pre-designated position, potentially leading to abnormal oil sealing results and causing abnormal situations such as oil leakage. When an oil seal assembly malfunctions, the reaction force and its relationship with the equipment pressure will become abnormal. To accurately distinguish between industrial components with malfunctioning oil seals and those with normal oil seals, this embodiment uses a pressure sensor fixedly installed upside down between the automated control equipment and the oil seal element to acquire the reaction force on the equipment. This embodiment then acquires the equipment pressure and reaction force of each industrial component at each moment during the oil seal assembly process, enabling accurate subsequent analysis of whether each industrial component exhibits an oil seal malfunction during the assembly process. In this embodiment, the time interval between two adjacent moments is set to 1 second. Implementers can set the time interval between two adjacent moments according to actual conditions; it is not limited here.

[0061] Step S2: Based on the difference in reaction force between each industrial component at each moment during the oil sealing assembly process and the adjacent previous moment, as well as the temporal position of each moment, obtain the degree of oil seal pressing of each industrial component at each moment during the oil sealing assembly process.

[0062] Specifically, during the oil seal assembly process, the oil seal element may experience slight displacement, causing a small portion of the oil seal element's edge to be pressed against the mounting groove, resulting in an edge-jamming problem. At this point, the oil seal movement stops, and the oil seal element instantly reaches force equilibrium, causing a sudden increase in the reaction force. Therefore, by analyzing the difference in reaction force between each industrial component at each moment during the oil seal assembly process and its adjacent previous moment, the probability of edge-jamming for each industrial component at each moment during the oil seal assembly process can be determined. Considering that the greater the difference in reaction force between a certain industrial component at a certain moment during the oil seal assembly process and its adjacent previous moment, and the earlier this moment occurs in the oil seal assembly process of that industrial component, the more likely the industrial component is to have an edge-jamming problem at that moment. Therefore, this embodiment obtains the degree of oil seal edge-jamming for each industrial component at each moment during the oil seal assembly process based on the difference in reaction force between each industrial component at each moment during the oil seal assembly process and its adjacent previous moment, as well as the temporal position of each moment. The greater the degree of oil seal edge-jamming, the more likely the corresponding industrial component is to have an edge-jamming problem at the corresponding moment during the oil seal assembly process.

[0063] Preferably, in one feasible embodiment, the method for obtaining the oil seal edge pressing degree is as follows: For any industrial component and any moment during the oil sealing assembly process, the difference between the reaction force of the industrial component at that moment and the adjacent previous moment is obtained as the first characteristic value at that moment; when the first characteristic value is larger, the reaction force at that moment is more likely to have an abnormally sudden increase, and the industrial component is more likely to have an edge pressing problem during the oil sealing assembly process at that moment; the duration of the time period formed by the start time of the oil sealing assembly of the industrial component and that moment is used as the reference duration at that moment; when the reference duration is smaller, the difference between the overall duration of the oil sealing assembly process of the industrial component and the reference duration is larger, and when the first characteristic value is larger, it more accurately indicates that the industrial component has a greater risk of edge pressing at that moment. Therefore, in this embodiment, the result of normalizing the product of the difference between the overall duration of the oil sealing assembly process of the industrial component and the reference duration, the first characteristic value, and the reciprocal of the reference duration is used as the oil seal edge pressing degree at that moment. In this embodiment, the above product is normalized using the norm normalization function. It should be noted that, since there is no adjacent preceding moment at the start of the oil sealing assembly process of industrial components, this embodiment does not obtain the degree of oil seal pressing at the start of the oil sealing assembly process of industrial components.

[0064] This allows us to obtain the degree of oil seal pressing at each moment during the oil seal assembly process for each industrial component.

[0065] Step S3: Based on the degree of oil seal pressing, screen out the pressing industrial components and determine the initial pressing time of each pressing industrial component; based on the difference in equipment pressure and reaction force at each moment after the initial pressing time of each pressing industrial component, as well as the difference in reaction force at adjacent moments, obtain the continuous pressing industrial components, abnormal pressing industrial components, and normal pressing industrial components.

[0066] Specifically, it is known that the greater the degree of oil seal edge pressing, the more likely the corresponding industrial component is to have edge pressing during the oil sealing process. Industrial components with edge pressing may be industrial components with abnormal oil seals, while industrial components without edge pressing are definitely industrial components with normal oil seals. In order to more accurately identify industrial components with abnormal oil seals, this embodiment first filters out industrial components with edge pressing based on the degree of oil seal edge pressing and determines the initial edge pressing time of each industrial component. If an industrial component with edge pressing continues to have frequent edge pressing after its initial edge pressing time, it indicates that the industrial component with edge pressing has a continuous edge jamming abnormal oil seal situation during the oil sealing assembly process, and the industrial component with edge pressing is an industrial component with abnormal oil seals. It is known that when an industrial component with edge pressing has edge pressing at a certain moment during the oil sealing assembly process, the equipment pressure and reaction force at that moment should be equal. This embodiment determines the continuous edge pressing situation of each industrial component by analyzing the difference in equipment pressure and reaction force at each moment after its initial edge pressing time, and thus identifies industrial components with continuous edge pressing.

[0067] After identifying the continuously pressed industrial components, the remaining pressed industrial components are those where the oil seal element is squeezed into the reserved position under the continuous pressure of the equipment. At this point, the remaining pressed industrial components can be categorized into two situations: normal oil seal fit and abnormal oil seal fit (i.e., the oil seal element is torn). Components with normal oil seal fit are classified as "normal oil seal" components, and those with abnormal oil seal fit are classified as "abnormal oil seal" components. To accurately identify the components with normal and abnormal oil seals among the pressed industrial components other than the continuously pressed components, it is necessary to analyze the change in reaction force of each remaining pressed industrial component after its initial pressing moment. For pressed industrial components with normal oil seal fit, during the process of the oil seal element being squeezed into the reserved position after pressing, the reaction force will first drop sharply and then return to the normal reaction force change pattern (i.e., the reaction force gradually increases). The change in reaction force can be represented by the difference in reaction force between adjacent moments. Therefore, this embodiment obtains continuous edge pressing industrial components, abnormal edge pressing industrial components, and normal edge pressing industrial components based on the differences in equipment pressure and reaction force at each moment after the initial edge pressing moment of each edge pressing industrial component, as well as the differences in reaction force at adjacent moments.

[0068] Preferably, in one feasible embodiment of this invention, the method for obtaining the edge-pressing industrial components is as follows: industrial components in which the oil seal edge-pressing degree during the oil seal assembly process exceeds a preset oil seal edge-pressing degree threshold are all considered edge-pressing industrial components. In this embodiment, the preset oil seal edge-pressing degree threshold is set to 0.5. The implementer can set the preset oil seal edge-pressing degree threshold according to the actual situation, and it is not limited here.

[0069] Thus, the industrial components with pressed edges were accurately selected. It should be noted that during the oil seal assembly process, there were no industrial components with oil seal pressing edges exceeding the preset oil seal pressing edge threshold; all of these were industrial components with normal oil seals.

[0070] Preferably, in one feasible way of this embodiment, the method for obtaining the initial pressing time is as follows: for any pressing industrial component, the earliest time that occurs during the oil seal assembly process that is greater than the preset oil seal pressing degree threshold is taken as the initial pressing time of the pressing industrial component.

[0071] At this point, the initial pressing moment of each pressing industrial component during the oil sealing assembly process is obtained.

[0072] Preferably, in one feasible embodiment, the method for obtaining the continuous edge-pressing industrial component, the abnormal edge-pressing industrial component, and the normal edge-pressing industrial component is as follows: based on the difference between the equipment pressure and the reaction force of each edge-pressing industrial component at each time after its initial edge-pressing time, a reference edge-pressing time and a reference non-edge-pressing time are obtained for each edge-pressing industrial component after its initial edge-pressing time; wherein, the method for obtaining the reference edge-pressing time and the reference non-edge-pressing time is as follows: for any edge-pressing industrial component, the difference between the equipment pressure and the reaction force of the edge-pressing industrial component at each time after its initial edge-pressing time is... The result of normalizing the absolute value is used as the edge-pressing analysis value of the edge-pressing industrial component at the corresponding time. The smaller the edge-pressing analysis value, the more likely the edge-pressing industrial component is to have an edge-pressing problem at the corresponding time. Therefore, this embodiment sets the preset edge-pressing analysis threshold to 0.2. Implementers can set the size of the preset edge-pressing analysis threshold according to the actual situation, which is not limited here. When the edge-pressing analysis value is less than the preset edge-pressing analysis threshold, the corresponding time is used as the reference edge-pressing time of the edge-pressing industrial component. When the edge-pressing analysis value is greater than or equal to the preset edge-pressing analysis threshold, the corresponding time is used as the reference non-edge-pressing time of the edge-pressing industrial component.

[0073] The more reference pressing moments a pressing component has, and the smaller the difference between the equipment pressure and reaction force at the reference non-pressing moments, the more likely the pressing component is to have a continuous pressing oil seal abnormality. Therefore, this embodiment obtains the continuous pressing degree of each pressing component based on the number of reference pressing moments and the difference between the equipment pressure and reaction force at each reference non-pressing moment. The method for obtaining the continuous pressing degree is as follows: for any pressing component, the mean of the pressing analysis values ​​at all reference non-pressing moments is negatively correlated, and the result is used as the force analysis value of the pressing component. The larger the force analysis value, the smaller the mean of the pressing analysis values, indirectly reflecting a more serious oil seal pressing problem in the pressing component. In this embodiment, the negative of the mean of the above edge-pressing analysis values ​​is used as the power of an exponential function with the natural constant as the base. The output of this exponential function is the result of negatively correlated with the mean of the above edge-pressing analysis values. It is known that the more reference edge-pressing moments the edge-pressing industrial component has, the more severe the oil seal edge-pressing problem. To accurately characterize the severity of the oil seal edge-pressing problem, this embodiment normalizes the product of the number of reference edge-pressing moments and the stress analysis values, using this normalized result as the continuous edge-pressing degree of the edge-pressing industrial component. This embodiment normalizes the product of the number of reference edge-pressing moments and the stress analysis values ​​using the norm normalization function.

[0074] The greater the degree of continuous edge pressing, the more likely the corresponding edge-pressing industrial component will have abnormal oil sealing due to continuous edge pressing. Therefore, this embodiment sets a preset threshold for the degree of continuous edge pressing of 0.7. Implementers can set the value of the preset threshold for the degree of continuous edge pressing according to the actual situation, which is not limited here. When the degree of continuous edge pressing is greater than the preset threshold for the degree of continuous edge pressing, the corresponding edge-pressing industrial component is regarded as a continuously edge-pressing industrial component; when the degree of continuous edge pressing is less than or equal to the preset threshold for the degree of continuous edge pressing, the corresponding edge-pressing industrial component is regarded as an edge-pressing variable industrial component.

[0075] To identify abnormal and normal edge-pressing industrial components in edge-pressing variation industrial components, this embodiment uses the time period consisting of the initial edge-pressing time and the oil seal assembly completion time of each edge-pressing variation industrial component as the reference time period for each component. Then, the reference time period is divided into segments, and each segmented local reference time period is used as the edge-pressing analysis time period. The initial time of each edge-pressing analysis time period is the edge-pressing time. It can be assumed that one edge-pressing analysis time period corresponds to one edge-pressing cycle. Under normal circumstances, the reaction force change within one edge-pressing analysis time period should be a short, sharp decrease followed by a return to normal, i.e., a gradual increase in reaction force. Therefore, one edge-pressing analysis time period should correspond to a very short reaction force decrease period and a reaction force increase period.

[0076] To analyze whether there are any abnormalities in the oil seal assembly of each edge-pressing industrial component, this embodiment first obtains the reaction force decrease time period and reaction force increase time period within the edge-pressing analysis time period based on the difference in reaction force at adjacent moments within the edge-pressing analysis time period. The method for obtaining the reaction force decrease time period and reaction force increase time period is as follows: For any edge-pressing analysis time period, obtain the first characteristic value at each moment within that time period; the moment corresponding to the first characteristic value less than 0 is taken as the reaction force decrease time period, and the moment corresponding to the first characteristic value greater than 0 is taken as the reaction force increase time period; the time period consisting of continuous, uninterrupted reaction force decrease times is taken as the reaction force decrease time period; the time period consisting of continuous, uninterrupted reaction force increase times is taken as the reaction force increase time period.

[0077] Then, based on the number and total duration of the reaction force decrease time period, the number of reaction force increase time period, and the number of time periods for edge pressing analysis of each edge pressing industrial component, the degree of abnormality of each edge pressing industrial component is obtained. The method for obtaining the degree of anomaly is as follows: For any edge-changing industrial component, the number of time periods during which the reaction force decreases and the total duration of the edge-changing industrial component are taken as the first quantity and the first duration, respectively; the number of time periods during which the reaction force increases is taken as the second quantity; and the number of time periods during which the edge-changing industrial component undergoes edge-changing analysis is taken as the third quantity. When the first quantity and the third quantity are more unequal, the second quantity and the third quantity are more unequal, and the first duration is larger, it indicates that the oil sealing assembly process of the edge-changing industrial component is more abnormal, and the oil sealing element may be torn during the oil sealing assembly process. Therefore, in this embodiment, the absolute value of the difference between the first quantity and the third quantity is taken as the first difference; the absolute value of the difference between the second quantity and the third quantity is taken as the second difference; and the result of normalizing the product of the first difference negative correlation result, the second difference negative correlation result, and the first duration is taken as the degree of anomaly of the edge-changing industrial component. In this embodiment, the product of the first negative correlation result, the second negative correlation result, and the first duration is normalized using the norm normalization function; by taking the negative numbers of the first and second differences as powers of an exponential function with the natural constant as the base, the output of the exponential function is the first negative correlation result and the second negative correlation result.

[0078] The greater the degree of abnormality, the more likely the corresponding edge-pressing industrial component is to have an oil seal abnormality. Therefore, this embodiment sets a preset abnormality threshold of 0.6. Implementers can set the size of the preset abnormality threshold according to the actual situation, which is not limited here. When the abnormality degree is greater than the preset abnormality threshold, the corresponding edge-pressing industrial component is regarded as an abnormal edge-pressing industrial component; when the abnormality degree is less than or equal to the preset abnormality threshold, the corresponding edge-pressing industrial component is regarded as a normal edge-pressing industrial component.

[0079] At this point, industrial components with normal oil seals and those with abnormal oil seals are accurately identified. Components with normal oil seals include those without edge pressing issues and those with normal edge pressing; components with abnormal oil seals include those with continuous edge pressing and those with abnormal edge pressing. The unloading and sorting module transfers components with normal oil seals to the next production workshop for further processing, while components with abnormal oil seals are transferred to the industrial component recycling module.

[0080] In summary, this embodiment obtains the equipment pressure and reaction force of industrial components during the oil sealing assembly process; based on the difference in reaction force between each moment and its adjacent previous moment, and the temporal position of each moment, it obtains the degree of oil seal edge pressing at each moment, thereby screening out edge-pressed industrial components and determining the initial edge-pressing moment of the edge-pressed industrial components; based on the differences in equipment pressure and reaction force of the edge-pressed industrial components at each moment after its initial edge-pressing moment, and the differences in reaction force at adjacent moments, it obtains continuously edge-pressed industrial components, abnormally edge-pressed industrial components, and normally edge-pressed industrial components. This invention improves the accuracy of edge-pressing analysis and oil sealing assembly detection by accurately analyzing the relationship between equipment pressure and reaction force during the oil sealing assembly process, as well as the changes in reaction force, effectively avoiding misidentification in oil sealing assembly.

[0081] Example 2:

[0082] This invention also proposes an oil packaging and testing system; please refer to [link / reference]. Figure 2 The diagram shows a structural diagram of an oil seal assembly and detection system according to an embodiment of the present invention. The system includes: a data acquisition module 10, an oil seal edge pressing degree acquisition module 20, and an identification module 30.

[0083] The data acquisition module 10 is used to acquire the equipment pressure and reaction force of each industrial component at each moment during the oil sealing and assembly process.

[0084] The oil seal pressing degree acquisition module 20 is used to acquire the oil seal pressing degree of each industrial component at each moment in the oil sealing assembly process based on the difference in reaction force between each industrial component at each moment in the oil sealing assembly process and the adjacent previous moment, as well as the temporal position of each moment.

[0085] The identification module 30 is used to screen out the edge-pressing industrial components based on the degree of oil seal edge pressing and determine the initial edge-pressing time of each edge-pressing industrial component; based on the difference in equipment pressure and reaction force at each moment after the initial edge-pressing time of each edge-pressing industrial component, as well as the difference in reaction force at adjacent moments, it obtains the continuous edge-pressing industrial components, abnormal edge-pressing industrial components, and normal edge-pressing industrial components.

[0086] It should be noted that the system provided in the above embodiments is only an example of the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the computer device can be divided into different functional modules to complete all or part of the functions described above. In addition, the oil packaging assembly and testing system and the oil packaging assembly and testing method provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0087] Example 3:

[0088] This invention also proposes an oil package assembly and testing device, which includes a memory and a processor. The memory stores executable program code, and the processor is used to call and execute the executable program code to perform an oil package assembly and testing method provided in the embodiments of this application. Specifically, the device may be a chip, component, or module. The chip may include a connected processor and memory; wherein the memory stores instructions, and when the processor calls and executes the instructions, it can cause the chip to perform the oil package assembly and testing method provided in the above embodiments.

[0089] In addition, this embodiment also protects a computer device; please refer to [link to relevant documentation]. Figure 3 The computer device includes a memory 401, a processor 402, and a computer program 403 stored in the memory 401 and running on the processor 402. When the processor 402 executes the computer program 403, the computer device can perform any of the oil packing and testing methods described above.

[0090] Example 4:

[0091] The present invention also provides a computer-readable storage medium storing computer program code, which, when executed on a computer, causes the computer to perform the aforementioned method steps to implement the oil packaging and testing method provided in the above embodiments.

[0092] Example 5:

[0093] The present invention also provides a computer program product, which, when run on a computer, causes the computer to perform the above-mentioned related steps to implement the oil packaging and testing method provided in the above embodiments.

[0094] In this embodiment, the device, computer-readable storage medium, computer program product, or chip are all used to execute the corresponding methods provided above. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0095] It should be noted that the order of the above embodiments of the present invention is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. The processes depicted in the accompanying drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0096] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

Claims

1. A method for testing oil packaging, characterized in that, The method includes the following steps: Obtain the equipment pressure and reaction force of each industrial component at every moment during the oil sealing and assembly process; Based on the difference in reaction force between each industrial component at each moment during the oil sealing assembly process and the adjacent previous moment, as well as the temporal position of each moment, the degree of oil seal pressing of each industrial component at each moment during the oil sealing assembly process is obtained. Based on the degree of oil seal pressing, the pressing industrial components are screened and the initial pressing time of each pressing industrial component is determined; based on the difference of equipment pressure and reaction force at each time after the initial pressing time of each pressing industrial component, as well as the difference of reaction force at adjacent times, the continuous pressing industrial components, abnormal pressing industrial components, and normal pressing industrial components are obtained. The method for obtaining the degree of oil seal pressing is as follows: For any industrial component and any moment in the oil sealing process, obtain the difference between the reaction force of the industrial component at that moment and the adjacent previous moment, and use it as the first characteristic value at that moment. The duration of the time interval between the start time of the oil seal assembly of the industrial component and that time is used as the reference duration of that time. The result of normalizing the product of the difference between the overall duration of the oil sealing assembly process of the industrial component and the reference duration, the first characteristic value, and the reciprocal of the reference duration, is taken as the degree of oil seal edge pressing at that moment.

2. The oil packaging and testing method as described in claim 1, characterized in that, The method for obtaining the edge-pressing industrial component is as follows: Industrial components in which the oil seal pressing degree exceeds the preset oil seal pressing degree threshold during the oil seal assembly process are all classified as pressing industrial components.

3. The oil packaging and testing method as described in claim 2, characterized in that, The method for obtaining the initial pressing moment is as follows: For any edge-pressing industrial component, the earliest time that occurs during the oil seal assembly process when the edge-pressing industrial component exceeds the preset oil seal edge-pressing degree threshold is taken as the initial edge-pressing time of the edge-pressing industrial component.

4. The oil packaging and testing method as described in claim 1, characterized in that, The methods for obtaining the continuous edge-pressing industrial component, the abnormal edge-pressing industrial component, and the normal edge-pressing industrial component are as follows: Based on the difference in equipment pressure and reaction force at each moment after the initial pressing moment of each pressing industrial component, obtain the reference pressing moment and reference non-pressing moment of each pressing industrial component after its initial pressing moment; The continuous pressing degree of each pressing industrial component is obtained based on the number of reference pressing moments for each pressing industrial component and the difference in equipment pressure and reaction force at each reference non-pressing moment. When the continuous edge pressing degree exceeds the preset continuous edge pressing degree threshold, the corresponding edge pressing industrial component will be regarded as a continuous edge pressing industrial component. When the continuous edge pressing degree is less than or equal to the preset continuous edge pressing degree threshold, the corresponding edge pressing industrial component will be regarded as the edge pressing change industrial component. The time period consisting of the initial pressing time of each pressing-edge change industrial component and the end time of its oil seal assembly is used as the reference time period for each pressing-edge change industrial component. The reference time period is divided into segments using the reference pressing time as the segmentation time, and the segmented local reference time periods are used as pressing analysis time periods; wherein, the initial time of each pressing analysis time period is the pressing time. Based on the difference in reaction force at adjacent moments within the edge pressing analysis period, the time period during which the reaction force decreases and the time period during which the reaction force increases are obtained within the edge pressing analysis period. The degree of abnormality of each edge-changing industrial component is obtained by considering the number and total duration of the reaction force decrease time period, the number of reaction force increase time period, and the number of edge-changing analysis time periods for each edge-changing industrial component. When the degree of abnormality exceeds the preset abnormality threshold, the corresponding edge-pressing industrial component will be regarded as an abnormal edge-pressing industrial component. When the degree of abnormality is less than or equal to the preset abnormality threshold, the corresponding edge-pressing industrial component will be treated as a normal edge-pressing industrial component.

5. The oil packaging and testing method as described in claim 4, characterized in that, The method for obtaining the reference pressing time and the reference non-pressing time is as follows: For any edge pressing industrial component, the normalized result of the difference between the equipment pressure and reaction force at each time after the initial edge pressing moment is used as the edge pressing analysis value of the edge pressing industrial component at the corresponding time. When the edge pressing analysis value is less than the preset edge pressing analysis threshold, the corresponding time will be used as the reference edge pressing time for the edge pressing industrial component. When the edge pressing analysis value is greater than or equal to the preset edge pressing analysis threshold, the corresponding time will be used as the reference non-edge pressing time for the edge pressing industrial component.

6. The oil packaging and testing method as described in claim 5, characterized in that, The method for obtaining the degree of continuous edge pressing is as follows: For any edge-pressing industrial component, the result of negatively correlating the mean of the edge-pressing analysis values ​​at all reference non-edge-pressing times of the edge-pressing industrial component is used as the stress analysis value of the edge-pressing industrial component. The normalized result of the product of the number of reference pressing moments of the pressing industrial component and the stress analysis value is taken as the continuous pressing degree of the pressing industrial component.

7. The oil packaging and testing method as described in claim 4, characterized in that, The method for obtaining the reaction force decrease time period and the reaction force increase time period is as follows: For any edge compression analysis time period, obtain the first characteristic value of each moment within the edge compression analysis time period, take the moment corresponding to the first characteristic value less than 0 as the moment when the reaction force decreases, and take the moment corresponding to the first characteristic value greater than 0 as the moment when the reaction force increases. The time interval consisting of the continuous and uninterrupted moments of decreasing reaction force is defined as the reaction force decreasing time interval. The time interval consisting of the continuous and uninterrupted moments of rising reaction force is defined as the reaction force rising time interval.

8. The oil packaging and testing method as described in claim 4, characterized in that, The method for obtaining the degree of abnormality is as follows: For any edge-changing industrial component, the number and total duration of the reaction force reduction time period of the edge-changing industrial component are respectively taken as the first quantity and the first duration. The number of time intervals during which the reaction force of the pressure-changing industrial component rises is taken as the second quantity; The number of time periods for edge-pressing analysis of the industrial component with edge-pressing variation is used as the third quantity; The difference between the first quantity and the third quantity is taken as the first difference; The difference between the second and third quantities is taken as the second difference; The normalized result of the product of the first negative correlation result, the second negative correlation result, and the first duration is taken as the degree of anomaly of the industrial component with edge pressure variation.

9. An oil packaging and testing system, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the oil packaging and testing method according to any one of claims 1-8.

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