A multi-dimensional test tooling status monitoring method and system

Abstract

The present invention relates to the field of tooling monitoring technology, and provides a multi-dimensional test tooling status monitoring method and system. The method comprises: installing a first pressure sensor between the test equipment and the vibration isolator; obtaining a first number of times the test equipment is subjected to an impact test and a second number of times the test equipment is subjected to a vibration test based on the sensing value of the first pressure sensor; judging whether it is necessary to replace the test tooling parts or whether it is necessary to replace the vibration isolator based on the first number and the second number; if it is necessary to replace the test tooling parts or the vibration isolator, outputting corresponding reminder information to the user. The present invention sets a pressure sensor to obtain the number of impact tests and vibration tests, thereby judging whether the test tooling parts or the vibration isolator are at risk of aging, and reminding the user to replace them, so as to avoid the possibility of incorrect test results due to the use of aged test tooling parts or aged vibration isolators.

Description

Technical Field

[0001] The present invention relates to the technical field of tooling monitoring, and in particular to a multi-dimensional test tooling status monitoring method and system. Background Art

[0002] Environmental testing of electronic equipment requires the installation and customization of extensive test fixtures. More complex test fixtures are assembled from fixture parts, bolts, and vibration isolators, then installed and reused with various electronic devices. Environmental testing types include vibration, shock, and damp heat testing. Environmental testing can cause localized cracks in test fixture parts, loosening, breakage, and rusting of bolts, and aging and failure of vibration isolators. Continuing environmental testing with these conditions can lead to inaccurate test results.

[0003] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in this technical field. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that vibration tests or damp heat tests may cause local cracks in test tooling parts, loosening, breakage and rust of bolts, and aging and failure of vibration isolators. If environmental tests are continued, the test results may be incorrect.

[0005] The present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a multi-dimensional test tool status monitoring method, comprising:

[0007] Installing a first pressure sensor between the test equipment and the vibration isolator;

[0008] Obtaining, according to the sensing value of the first pressure sensor, a first number of times the test equipment is subjected to the impact test and a second number of times the test equipment is subjected to the vibration test;

[0009] determining whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced based on the first number and the second number;

[0010] If the test fixture parts need to be replaced or the vibration isolator needs to be replaced, the corresponding reminder information will be output to the user.

[0011] Preferably, obtaining a first number of times the test equipment is subjected to the impact test and a second number of times the test equipment is subjected to the vibration test according to the sensing value of the first pressure sensor specifically includes:

[0012] If the sensing value of the first pressure sensor undergoes a sudden change at a first moment, and changes from being lower than a first sensing threshold to being higher than a second sensing threshold, and within a preset time after the first moment, the amplitude of the change in the sensing value of the first pressure sensor gradually decreases, it is considered that the test equipment has been subjected to one shock test, thereby obtaining a first number of shock tests on the test equipment;

[0013] If the sensing value of the first pressure sensor suddenly changes at a first moment, and changes from being lower than the first sensing threshold to being higher than the third sensing threshold, and within a preset time after the first moment, the change amplitude of the sensing value of the first pressure sensor is always greater than the first preset amplitude, then it is considered that the test equipment has been subjected to a vibration test, and the second number of times the test equipment has been subjected to the vibration test is obtained by statistics.

[0014] Preferably, judging whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced based on the first number and the second number specifically includes:

[0015] Multiply the first number by the weight i to get the first value;

[0016] Multiply the second number by the weight s to obtain the second value;

[0017] When the sum of the first value and the second value is greater than the test number threshold of the test tool, or when the interval time since the last use of the test tool is greater than the interval time threshold of the test tool, it is determined that the test tool part needs to be replaced.

[0018] Preferably, judging whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced based on the first number and the second number further includes:

[0019] Multiply the first number by the weight h to obtain the first value;

[0020] Multiply the second number by the weight q to obtain the second value;

[0021] Multiply the number of damp heat tests by the weight t to obtain a third value;

[0022] When the sum of the first value, the second value and the third value is greater than the test number threshold of the vibration isolator, or when the interval length from the last use of the vibration isolator to the last use is greater than the interval length threshold of the vibration isolator, it is determined that the vibration isolator needs to be replaced.

[0023] Preferably, the method further comprises:

[0024] According to the first number and the second number, it is determined whether the bolt needs to be replaced. If the bolt needs to be replaced, a corresponding reminder message is output to the user. Specifically,

[0025] Multiply the first number by the weight f to obtain the first value;

[0026] Multiply the second number by the weight g to get the second value;

[0027] Multiply the number of damp heat tests by the weight u to obtain a third value;

[0028] When the sum of the first value, the second value and the third value is greater than the test number threshold of the bolt, or when the interval time since the last use of the bolt is greater than the interval time threshold of the bolt, it is determined that the bolt needs to be replaced.

[0029] Preferably, the method further comprises:

[0030] Installing a second pressure sensor at a fixed position between the test fixture and the vibration isolator;

[0031] Installing a third pressure sensor at a fixed position between the test fixture and the test table;

[0032] Determining damage conditions of the vibration isolator and test fixture parts according to the sensing value of the second pressure sensor and the sensing value of the third pressure sensor;

[0033] When the vibration isolator or test fixture parts are damaged, corresponding replacement reminder information is output to the user.

[0034] Preferably, judging the damage of the vibration isolator and the test fixture parts according to the sensing value of the second pressure sensor and the sensing value of the third pressure sensor specifically includes:

[0035] When the test equipment is not performing an impact test or a vibration test, if the sensing value of the second pressure sensor is greater than a preset sensing value or the sensing value of the third pressure sensor is greater than a preset sensing value, it is considered that the test fixture part is damaged;

[0036] When performing an impact test or a vibration test on the test equipment, if the change amplitude of the sensing value of the second pressure sensor is greater than the second preset amplitude or the change amplitude of the sensing value of the third pressure sensor is greater than the second preset amplitude, it is considered that the vibration isolator and the test fixture parts are damaged.

[0037] Preferably, the method further comprises:

[0038] Multiply the first number by the weight i to get the first value;

[0039] Multiply the second number by the weight s to obtain the second value;

[0040] When the sum of the first value and the second value is greater than or equal to a third value, or when the test tool is used for the first time, or when the interval between the test tool and the last use is greater than the interval time threshold of the corresponding bolt, the user is prompted that the bolt needs maintenance; wherein the third value is the product of the bolt maintenance number threshold and the bolt maintenance coefficient r.

[0041] Preferably, the test equipment is fixed to the test fixture by bolts, and a vibration isolator is placed between the test equipment and the test fixture;

[0042] The test fixture is also fixed to the test table by bolts.

[0043] In a second aspect, the present invention further provides a multi-dimensional test tooling status monitoring system, which is used to execute the multi-dimensional test tooling status monitoring method described in the first aspect.

[0044] In a third aspect, the present invention further provides a multi-dimensional test tooling state monitoring device for implementing the multi-dimensional test tooling state monitoring method described in the first aspect, the device comprising:

[0045] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to execute the multi-dimensional test tooling status monitoring method described in the first aspect.

[0046] In a fourth aspect, the present invention further provides a non-volatile computer storage medium, wherein the computer storage medium stores computer-executable instructions, which are executed by one or more processors to complete the multi-dimensional test tooling status monitoring method described in the first aspect.

[0047] The present invention sets a pressure sensor to obtain the number of impact tests and vibration tests, thereby judging whether there is a risk of aging of the test tooling parts or vibration isolators, and reminding the user to replace them to avoid the possibility of incorrect test results due to the use of aging test tooling parts or aging vibration isolators. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0049] Figure 1 1 is a flow chart of a multi-dimensional test tool status monitoring method provided by an embodiment of the present invention;

[0050] Figure 2 It is a test tool used in a multi-dimensional test tool state monitoring method provided by an embodiment of the present invention;

[0051] Figure 3 This is an application scenario of a multi-dimensional test tool status monitoring method provided by an embodiment of the present invention;

[0052] Figure 4 This is an application scenario of a multi-dimensional test tool status monitoring method provided by an embodiment of the present invention;

[0053] Figure 5 Schematic diagram of a multi-dimensional test tool state monitoring method provided by an embodiment of the present invention applied to a test tool;

[0054] Figure 6 1 is a flow chart of a multi-dimensional test tool status monitoring method provided by an embodiment of the present invention;

[0055] Figure 7 Schematic diagram of a multi-dimensional test tool state monitoring method provided by an embodiment of the present invention applied to a test tool;

[0056] Figure 8 Schematic diagram of a multi-dimensional test tool state monitoring method provided by an embodiment of the present invention applied to a test tool;

[0057] Figure 9 Schematic diagram of a multi-dimensional test tool status monitoring method provided by an embodiment of the present invention;

[0058] Figure 10 Schematic diagram of the architecture of a multi-dimensional test tooling status monitoring system provided by an embodiment of the present invention;

[0059] Figure 11 Schematic diagram of the architecture of a multi-dimensional test tool status monitoring device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0061] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0062] It should be noted that since this embodiment involves replacement reminders for multiple components and the corresponding calculation process, for the convenience of expression, the present invention replaces the weights involved in the calculation with the weight followed by a letter, and different letters correspond to different weight values. For example, in the calculation process of determining whether the tooling parts need to be replaced, the weight i and weight s are used, and these two weight values ​​are different. In the calculation process of determining whether the bolts need to be maintained, the weight i and weight s are also used. The weight i used in these two calculation processes is the same weight value, and the weight s used is the same weight value.

[0063] The present invention uniformly describes the intermediate calculation results in each calculation process as a first numerical value or a second numerical value. It should be understood that the first numerical value or the second numerical value represents different meanings in different calculation processes. For example, the first numerical value is used when determining whether the vibration isolator needs to be replaced and when determining whether the bolts need to be replaced. However, when determining whether the vibration isolator needs to be replaced, the first numerical value is the product of the first numerical value and the weight h, and when determining whether the bolts need to be replaced, the first numerical value is the product of the first numerical value and the weight f. In different calculation processes, the first numerical value represents the number of times the test equipment is subjected to impact testing, and the second numerical value represents the number of times the test equipment is subjected to vibration testing.

[0064] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0065] Embodiment 1:

[0066] Environmental testing can cause local cracks in test fixture parts, loose bolts, breakage and rust, as well as aging and failure of vibration isolators. Continuing the environmental testing may result in incorrect test results. To solve this problem, embodiment 1 of the present invention provides a multi-dimensional test fixture status monitoring method, such as Figure 1 Shown, including:

[0067] In step 201 , a first pressure sensor is installed between a test device and a vibration isolator.

[0068] In step 202, a first number of times the test equipment is subjected to an impact test and a second number of times the test equipment is subjected to a vibration test are obtained according to the sensing value of the first pressure sensor.

[0069] When the test equipment is subjected to an impact test or a vibration test, the vibration isolator will provide a corresponding force to the test equipment in order to play a vibration isolation role, so that it can be determined whether an impact test or a vibration test is being performed through the sensing value of the first pressure sensor, and then the first number and the second number can be statistically obtained.

[0070] In step 203, it is determined whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced based on the first number and the second number.

[0071] As an optional implementation, when the first number or the second number exceeds the corresponding prescribed number, it is considered that the test fixture parts and the vibration isolator have been used for too long and may be aged and need to be replaced.

[0072] In step 204 , if the test fixture parts need to be replaced or the vibration isolator needs to be replaced, a corresponding reminder message is output to the user.

[0073] The test tooling parts refer to the main parts that constitute the test tooling. Usually, the test tooling parts refer to the test tooling itself. Therefore, in subsequent embodiments, unless otherwise specified, the test tooling parts are also described as an alternative.

[0074] For example, the multi-dimensional test tool status monitoring method is applicable to Figure 2 In the case of the test fixture shown, which consists of at least two interconnected right-angled triangular brackets and is manufactured using an integrated molding process, the test fixture part refers to the entire support frame itself. Mounting holes are provided at corresponding locations on the test fixture for inserting bolts to secure it to the test equipment or test bench.

[0075] There are two ways to implement the method of using the test fixture to fix the test equipment to perform environmental testing, specifically:

[0076] Method 1 is the back-side hanging support method, such as Figure 3 As shown, the test equipment is hung on one side of the test fixture through two fulcrums and does not contact the test table. A vibration isolator is set between the test equipment and the test fixture. The vibration isolator is fixed to the test fixture through bolts, thereby fixing the test equipment. The bottom of the test fixture is fixed to the test table through bolts. Figure 3 Taking the support method shown in FIG. 1 as an example, when applying the method described in this embodiment, the first pressure sensor is installed in the following manner: Figure 5 Position shown.

[0077] The second method is composite support, such as Figure 4As shown, the test equipment is fixed to one side of the test fixture through a fulcrum, a vibration isolator is provided between the test equipment and the test fixture, the vibration isolator is fixed to the test fixture through bolts, and the bottom of the test equipment is set on the test table through the vibration isolator, and the bottom of the test fixture is fixed to the test table through bolts.

[0078] In actual application scenarios, bolts are usually used in conjunction with nuts. The bolts used to fix the vibration isolator to the test fixture and the corresponding nuts are usually collectively referred to as fasteners.

[0079] This embodiment sets a pressure sensor to obtain the number of impact tests and vibration tests, thereby determining whether there is a risk of aging of the test tooling parts or vibration isolators, and reminding the user to replace them to avoid the possibility of incorrect test results due to the use of aging test tooling parts or aging vibration isolators.

[0080] This embodiment also provides an optional implementation for the above step 202, that is, obtaining the first number of times the test equipment is subjected to the impact test and the second number of times the test equipment is subjected to the vibration test according to the sensing value of the first pressure sensor, such as Figure 6 As shown, specifically including:

[0081] In step 301, if the sensing value of the first pressure sensor suddenly changes at the first moment, and suddenly changes from below the first sensing threshold to above the second sensing threshold, and within the preset time after the first moment, the change amplitude of the sensing value of the first pressure sensor gradually decreases, it is considered that the test equipment has been subjected to an impact test, and the first number of times the test equipment has been subjected to the impact test is obtained by statistics.

[0082] During an impact test on a test device, since the impact test typically involves a single force application, the sensing value of the first pressure sensor increases rapidly at the moment of force application. After the force is applied, the vibration isolator gradually releases the energy absorbed during the single force application, so the sensing value of the first pressure sensor continues to change and gradually approaches a stationary state, resulting in a gradual decrease in the amplitude of the change. This is specifically achieved by constructing a pressure sensing value change curve or an amplitude change curve for the first pressure sensor, and determining whether the amplitude of the sensing value change of the first pressure sensor is gradually decreasing through curve analysis.

[0083] In step 302, if the sensing value of the first pressure sensor suddenly changes at the first moment, and suddenly changes from below the first sensing threshold to above the third sensing threshold, and within the preset time after the first moment, the change amplitude of the sensing value of the first pressure sensor is always greater than the first preset amplitude, then it is considered that the test equipment has been subjected to a vibration test, and the second number of times the test equipment has been subjected to the vibration test is obtained by statistics.

[0084] When the test equipment is subjected to a vibration test, since the vibration test usually involves continuously applying force back and forth to the test equipment, the vibration isolator continuously absorbs and releases energy, causing the sensing value of the first pressure sensor to change back and forth, and the amplitude of the change does not decrease. Therefore, the amplitude of the change in the sensing value of the first pressure sensor is always greater than the first preset amplitude, and when it does not decrease, it is considered that the test equipment has been subjected to a vibration test.

[0085] Among them, the preset time, the first preset amplitude, the first sensing threshold, the second sensing threshold and the third sensing threshold are obtained by technical personnel in this field based on empirical analysis, the first sensing threshold is smaller than the third sensing threshold, and the third sensing threshold is smaller than the second sensing threshold.

[0086] It should be noted here that the mutation is a relative description, which is manifested as a rapid change in the sensor value within a short period of time. This time period is obtained by technical personnel in this field based on empirical analysis, and does not refer to the absolute sensor value changing rapidly between the previous sampling moment and the next sampling moment.

[0087] The change in the sensing value of the first pressure sensor actually reflects the oscillation of the test equipment. The larger the amplitude of the change, the more severe the oscillation of the test equipment, and the longer the amplitude of the change lasts, the longer the oscillation of the test equipment lasts. When the test equipment oscillates and the subsequent oscillation weakens (i.e., the amplitude of the change decreases), it can be considered that the test equipment has been subjected to an impact test. When the test equipment oscillates and the oscillation continues during the subsequent process (i.e., the amplitude of the change is always greater than the first preset amplitude), it can be considered that the test equipment has been subjected to a vibration test.

[0088] In actual use, when the test fixture is not used for a long time, it may also age, resulting in incorrect test results when it is subsequently used for environmental testing. To solve this problem, this embodiment provides the following preferred implementation method, namely, judging whether the test fixture parts or the vibration isolator need to be replaced based on the first number and the second number, specifically including:

[0089] Multiply the first number by the weight i to obtain the first value.

[0090] Multiply the second number by the weight s to obtain the second value.

[0091] When the sum of the first value and the second value is greater than the test number threshold of the test tool, or when the interval time since the last use of the test tool is greater than the interval time threshold of the test tool, it is determined that the test tool part needs to be replaced.

[0092] The weight i, weight s, the test number threshold of the test tool and the test tool interval time threshold are obtained by those skilled in the art based on analysis of the usage characteristics of the test tool.

[0093] In the actual implementation process, the value M can be set to be the first number × i + the second number × s. When M is greater than the test number threshold of the test tooling, a reminder message for replacing the tooling parts is output, and the M can be regarded as the number of times the test tooling is used. Among them, there are many forms of presentation of the reminder information, such as through a desktop software interface or a mobile terminal; for example, a technician in this field sets the test number threshold of the test tooling to 30 times, the impact test coefficient i is 1.5, and the vibration test coefficient s is 1. When the difference between the current use time of the test tooling and the last use time of the tooling is greater than the interval time threshold of the test tooling, a reminder message for replacing the tooling is output. That is, excessive use and long-term non-use of the test tooling will lead to replacement. After replacing the test tooling, the test personnel will reset the relevant parameters. For example, the number of impact tests and the number of vibration tests are both set to 0. In actual use, the number of impact tests and the number of vibration tests can also be manually recorded by the test personnel.

[0094] This embodiment further provides a preferred implementation manner, that is, judging whether it is necessary to replace the test fixture part or the vibration isolator according to the first number of times and the second number of times, further comprising:

[0095] Multiply the first number by the weight h to obtain the first value.

[0096] Multiply the second number by the weight q to obtain the second value.

[0097] The third value is obtained by multiplying the number of damp heat tests by the weight t.

[0098] When the sum of the first value, the second value and the third value is greater than the test number threshold of the vibration isolator, or when the interval length from the last use of the vibration isolator to the last use is greater than the interval length threshold of the vibration isolator, it is determined that the vibration isolator needs to be replaced.

[0099] The weight h, weight q, weight t, the test number threshold of the vibration isolator, and the interval time threshold of the vibration isolator are obtained by those skilled in the art based on analysis of the usage characteristics of the vibration isolator.

[0100] In the actual implementation process, the value M can be set to be the first number × i + the second number × s + the number of damp heat tests × t. When M is greater than the test number threshold of the vibration isolator, a reminder message for replacing the vibration isolator is output. The M can be regarded as the number of times the vibration isolator has been used. When the difference between the current use time of the vibration isolator and the last use time of the vibration isolator is greater than the interval time threshold of the vibration isolator, a reminder message for replacing the vibration isolator is output. That is, excessive use and long-term non-use of the vibration isolator will lead to replacement. After replacing the vibration isolator, the tester will reset the relevant parameters. For example, the number of impact tests, the number of vibration tests, and the number of damp heat tests are all set to 0. The number of damp heat tests can be obtained by setting a humidity sensor and a temperature sensor to measure the humidity and temperature. In actual use, the number of impact tests, the number of vibration tests, and the number of damp heat tests can also be manually recorded by the tester.

[0101] During actual use, the bolts may become loose or aged, thereby affecting the results of the environmental test. To address this issue, this embodiment further provides a preferred implementation, namely, the method further includes:

[0102] According to the first number and the second number, it is determined whether the bolt needs to be replaced. If the bolt needs to be replaced, a corresponding reminder message is output to the user, specifically:

[0103] Multiply the first number by the weight f to obtain the first value.

[0104] Multiply the second multiplier by the weight g to obtain the second value.

[0105] The third value is obtained by multiplying the number of damp heat tests by the weight u.

[0106] When the sum of the first value, the second value and the third value is greater than the test number threshold of the bolt, or when the interval time since the last use of the bolt is greater than the interval time threshold of the bolt, it is determined that the bolt needs to be replaced.

[0107] The weight f, weight g, weight u, the bolt test number threshold, and the bolt interval time threshold are obtained by those skilled in the art based on analysis of the usage characteristics of the bolts.

[0108] Based on the installation position, the bolts can be divided into first and second bolts. The first bolts are fasteners used to secure the vibration isolator and the test equipment, while the second bolts are used to secure the test fixture to the test bench. This embodiment is applicable to both types of bolts.

[0109] In the actual implementation process, the value M can be set to be the first number × f + the second number × g + the number of damp heat tests × u. When M is greater than the threshold of the number of tests of the bolt, a reminder message for replacing the bolt is output. The M can be regarded as the number of times the bolt is used. When the difference between the current use time of the bolt and the last use time of the bolt is greater than the interval time threshold of the bolt, a reminder message for replacing the bolt is output. That is, excessive use and long-term non-use of the bolt will lead to replacement. After replacing the bolt, the test personnel will reset the relevant parameters. For example, the number of impact tests, vibration tests and damp heat tests are all set to 0.

[0110] The above embodiments all monitor the number of environmental tests to determine whether the test fixture parts or vibration isolators need to be replaced. However, in actual use, there are occasional failures of the components, such as damage caused by bumps during transportation, which may also affect the accuracy of the environmental test. However, the above embodiments cannot identify this situation. To address this problem, this embodiment further provides the following preferred implementations, including:

[0111] A second pressure sensor is installed at the fixed position of the test fixture and the vibration isolator.

[0112] A third pressure sensor is installed at a fixed position between the test fixture and the test table.

[0113] The damage conditions of the vibration isolator and the test fixture parts are judged according to the sensing value of the second pressure sensor and the sensing value of the third pressure sensor.

[0114] When the vibration isolator or test fixture is damaged, the corresponding replacement reminder information is output to the user.

[0115] The step of judging the damage of the vibration isolator and the test fixture parts according to the sensing value of the second pressure sensor and the sensing value of the third pressure sensor specifically includes:

[0116] When the test equipment is not subjected to an impact test or a vibration test, if the sensing value of the second pressure sensor is greater than a preset sensing value or the sensing value of the third pressure sensor is greater than a preset sensing value, it is considered that the test fixture is damaged.

[0117] The preset sensor value is obtained by those skilled in the art based on empirical analysis.

[0118] When performing an impact test or a vibration test on the test equipment, if the change amplitude of the sensing value of the second pressure sensor is greater than the second preset amplitude or the change amplitude of the sensing value of the third pressure sensor is greater than the second preset amplitude, it is considered that the vibration isolator and the test fixture parts are damaged.

[0119] The fixed position of the test fixture and the vibration isolator is the same as the position of the corresponding mounting hole for fixing the vibration isolator. Similarly, the fixed position of the test fixture and the test table is the same as the position of the corresponding mounting hole for fixing the test fixture. The area near the mounting hole of the test fixture is a stress concentration area and is most prone to cracking. Therefore, the pressure value of the material attached to the mounting hole directly reflects the state of the test fixture. Therefore, a pressure sensor is installed at the mounting hole position. When a crack appears at the corresponding position, most of the pressure is concentrated in the contact area between the bolt cap and the surrounding mounting hole. Therefore, when the test equipment is not undergoing impact testing or vibration testing, if the corresponding sensor sensing value is too large, it can be considered that the test fixture is damaged. However, when the vibration isolator is damaged, during impact tests and vibration tests, the vibration isolator cannot normally isolate the impact, causing the force exerted on the test equipment to be transmitted to the test fixture at a rapid speed, which is very likely to cause damage to the test fixture. When the change amplitude of the sensing value of the second pressure sensor is greater than the second preset amplitude or the change amplitude of the sensing value of the third pressure sensor is greater than the second preset amplitude, it can be considered that the test fixture or test equipment is not well fixed, resulting in excessive pressure change amplitude, so the vibration isolator and the test fixture are considered damaged.

[0120] The second preset amplitude is obtained by those skilled in the art based on empirical analysis.

[0121] In actual use, for example Figure 7 As for the test fixture composed of the triangular bracket shown, there is another possible situation of damage, that is, due to the excessive weight of the test equipment, or because the horizontal force of the test fixture exceeds its own bearing limit, the hypotenuse connecting the two right-angled sides is cracked, that is, cracks are generated. To address this problem, this embodiment provides the following optional implementation methods, such as Figure 8 As shown, specifically including:

[0122] A tension sensor is set on the bevel of the test fixture. When the tension value of the tension sensor exceeds the preset tension value, it is considered that the tension range that the bevel can withstand is exceeded, and the bevel may have cracks, reminding the user to replace the test fixture.

[0123] The preset tension value is obtained by those skilled in the art based on analysis of the structural characteristics of the test fixture.

[0124] Among them, a strain gauge can be used as a tension sensor. For example, a strain gauge sensor is mounted on the outside of the bevel, and an electrical signal receiving module is used to read the output signal of the strain gauge sensor. Based on the sensing value, it is determined whether the tension of the bevel exceeds the tension range that the bevel can withstand, thereby determining whether there is a crack on the bevel.

[0125] In actual use, the bolts also need to be regularly greased for maintenance. To address this issue, the following optional implementation methods are provided, including:

[0126] Multiply the first number by the weight i to obtain the first value.

[0127] Multiply the second number by the weight s to obtain the second value.

[0128] When the sum of the first value and the second value is greater than or equal to a third value, or when the test tool is used for the first time, or when the interval between the test tool and the last use is greater than the interval time threshold of the corresponding bolt, the user is prompted that the bolt needs maintenance; wherein the third value is the product of the bolt maintenance number threshold and the bolt maintenance coefficient r.

[0129] The bolt maintenance coefficient r and the bolt interval time threshold are obtained by those skilled in the art based on analysis of the usage characteristics of the bolts.

[0130] Bolt maintenance involves greasing to prevent excessive wear, which can make disassembly difficult. When a test fixture is used for the first time, the bolts must be greased. A bolt maintenance factor, r, is set. When the fixture usage times equal the bolt maintenance limit multiplied by the factor, a reminder to grease the bolts is displayed. A reminder to grease the bolts is displayed when the difference between the current time on the test fixture and the last time it was tested exceeds the bolt maintenance limit. This reminder is triggered by excessive use or prolonged disuse of the fixture.

[0131] In actual use, the number of impact tests, vibration tests and damp heat tests can also be recorded by the test personnel, and may also involve the joint mobilization and cooperation of different departments, such as Figure 9 As shown, specifically:

[0132] At the test site, the tooling code and the code of the equipment under test are recorded. The number of tests and the pass / fail results are also recorded. The test tooling status is monitored, including whether the tooling has cracks, bolts have been replaced, bolts have been greased, bolts have been rusted, and vibration isolators have aged. This test tooling status information is received in the database, and the updated status information is calculated, updated, and archived based on parameter settings. The updated status information is then fed back to the tooling management department, prompting them to determine whether the tooling should be scrapped, bolts should be replaced, bolts should be greased, and vibration isolators should be replaced.

[0133] After replacing the corresponding components, the tooling management department updates the status information of the vibration isolators, fasteners, and tooling. The database receives this information, calculates, updates, and archives it. The test site receives the updated status information of the test tooling through the database and receives reminders.

[0134] According to the status information of the test jig in the database, it is judged whether the test jig, fasteners and vibration isolators need to be maintained or replaced, and the judgment result is output. The test jig parts refer to the main parts of the jig, the fasteners include bolts and nuts, and the vibration isolators refer to vibration isolators specifically used for test jigs. The usage status of the test jig parts includes the usage time and number of uses of the test jig, and the number of uses of the test jig is calculated by the number of impact tests, the number of vibration tests and the number of wet heat tests. The usage status of the fasteners includes the usage time and number of uses of the fasteners, and the number of uses of the fasteners is calculated by the number of impact tests, the number of vibration tests and the number of wet heat tests. The usage status of the vibration isolator includes the usage time and number of uses of the vibration isolator installed on the test jig, and the number of uses of the vibration isolator is calculated by the number of impact tests, the number of vibration tests and the number of wet heat tests.

[0135] This embodiment installs pressure sensors at corresponding locations on the test fixture to monitor corresponding pressure values, thereby monitoring information such as the number of environmental tests. This allows the physical state of the test fixture, bolts, and isolators to be described through multiple dimensions (e.g., tension / pressure values, time dimension, usage frequency, maintenance method, etc.). The physical state parameter values ​​are then configured using correlation coefficients (i.e., the weights in the above embodiment) to determine the usage status of the test fixture, bolts, and isolators. This usage status is then used to determine whether the test fixture, fasteners, and isolators require maintenance or replacement, and to alert the user.

[0136] Example 2:

[0137] Based on the multi-dimensional test tooling status monitoring method of Example 1, this embodiment further provides a multi-dimensional test tooling status monitoring system, which is used to implement the multi-dimensional test tooling status monitoring method of Example 1.

[0138] This embodiment also provides an optional architecture form of the system, that is, the system includes a first pressure sensor and a processor, and the first pressure sensor is arranged between the test equipment and the vibration isolator.

[0139] The processor is configured to obtain a first number of times the test equipment is subjected to an impact test and a second number of times the test equipment is subjected to a vibration test according to the sensing value of the first pressure sensor.

[0140] It is determined whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced according to the first number and the second number.

[0141] If the test fixture parts need to be replaced or the vibration isolator needs to be replaced, the corresponding reminder information will be output to the user.

[0142] The system also includes a corresponding display device, such as a display screen, for displaying corresponding reminder information.

[0143] For a more detailed introduction to the multi-dimensional test tooling status monitoring method, please refer to the previous description and will not be repeated here.

[0144] Example 3:

[0145] like Figure 11 , is a schematic diagram of the architecture of a multi-dimensional test fixture state monitoring device according to an embodiment of the present invention. The multi-dimensional test fixture state monitoring device according to this embodiment includes one or more processors 21 and a memory 22. Figure 11 A processor 21 is taken as an example.

[0146] The processor 21 and the memory 22 may be connected via a bus or other means. Figure 11 The bus connection is taken as an example.

[0147] The memory 22 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs and non-volatile computer executable programs, such as the multi-dimensional test tooling state monitoring method in Example 1. The processor 21 executes the multi-dimensional test tooling state monitoring method by running the non-volatile software programs and instructions stored in the memory 22.

[0148] The memory 22 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some embodiments, the memory 22 may optionally include a memory remotely located relative to the processor 21, and such remote memory may be connected to the processor 21 via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0149] The program instructions / modules are stored in the memory 22 , and when executed by the one or more processors 21 , the multi-dimensional test tooling status monitoring method in the above-mentioned embodiment 1 is executed.

[0150] It is worth noting that the information interaction, execution process, etc. between the modules and units within the above-mentioned devices and systems are based on the same concept as the processing method embodiment of the present invention. The specific content can be found in the description of the method embodiment of the present invention and will not be repeated here.

[0151] Those skilled in the art will understand that all or part of the steps in the various methods of the embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), a disk or an optical disk, etc.

[0152] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-dimensional test tool status monitoring method, characterized in that: include: Installing a first pressure sensor between the test equipment and the vibration isolator; Obtaining, according to the sensing value of the first pressure sensor, a first number of times the test equipment is subjected to the impact test and a second number of times the test equipment is subjected to the vibration test; Determining whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced based on the first number and the second number; If the test fixture parts or the vibration isolator need to be replaced, the corresponding reminder information will be output to the user; The determining whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced based on the first number of times and the second number of times further includes: Multiply the first number by the weight h to obtain the first value; Multiply the second number by the weight q to obtain the second value; Multiply the number of damp heat tests by the weight t to obtain a third value; When the sum of the first value, the second value and the third value is greater than the test number threshold of the vibration isolator, or when the interval length from the last use of the vibration isolator to the last use is greater than the interval length threshold of the vibration isolator, it is determined that the vibration isolator needs to be replaced.

2. The multi-dimensional test fixture status monitoring method according to claim 1, characterized in that: Obtaining, based on the sensing value of the first pressure sensor, a first number of times the test equipment is subjected to the impact test and a second number of times the test equipment is subjected to the vibration test, specifically includes: If the sensing value of the first pressure sensor undergoes a sudden change at a first moment, and changes from being lower than a first sensing threshold to being higher than a second sensing threshold, and within a preset time after the first moment, the amplitude of the change in the sensing value of the first pressure sensor gradually decreases, it is considered that the test equipment has been subjected to one shock test, thereby obtaining a first number of shock tests on the test equipment; If the sensing value of the first pressure sensor suddenly changes at a first moment, and changes from being lower than the first sensing threshold to being higher than the third sensing threshold, and within a preset time after the first moment, the change amplitude of the sensing value of the first pressure sensor is always greater than the first preset amplitude, then it is considered that the test equipment has been subjected to a vibration test, and the second number of times the test equipment has been subjected to the vibration test is obtained by statistics.

3. The multi-dimensional test tooling status monitoring method according to claim 1, characterized in that: The determining, based on the first number and the second number, whether a test fixture part needs to be replaced or whether a vibration isolator needs to be replaced specifically includes: Multiply the first number by the weight i to get the first value; Multiply the second number by the weight s to obtain the second value; When the sum of the first value and the second value is greater than the test number threshold of the test tool, it is determined that the test tool part needs to be replaced.

4. The multi-dimensional test tooling status monitoring method according to claim 1, characterized in that: The method further comprises: According to the first number and the second number, it is determined whether the bolt needs to be replaced. If the bolt needs to be replaced, a corresponding reminder message is output to the user. Specifically, Multiply the first number by the weight f to obtain the first value; Multiply the second number by the weight g to get the second value; Multiply the number of damp heat tests by the weight u to obtain a third value; When the sum of the first value, the second value and the third value is greater than the test number threshold of the bolt, or when the interval time since the last use of the bolt is greater than the interval time threshold of the bolt, it is determined that the bolt needs to be replaced.

5. The multi-dimensional test tool status monitoring method according to claim 1, characterized in that: The method further comprises: Installing a second pressure sensor at a fixed position between the test fixture and the vibration isolator; Installing a third pressure sensor at a fixed position between the test fixture and the test table; Determining damage conditions of the vibration isolator and test fixture parts according to the sensing value of the second pressure sensor and the sensing value of the third pressure sensor; When the vibration isolator or test fixture parts are damaged, corresponding replacement reminder information is output to the user.

6. The multi-dimensional test tooling status monitoring method according to claim 5, characterized in that: The step of determining damage to the vibration isolator and the test fixture parts based on the sensing value of the second pressure sensor and the sensing value of the third pressure sensor specifically includes: When the test equipment is not performing an impact test or a vibration test, if the sensing value of the second pressure sensor is greater than a preset sensing value or the sensing value of the third pressure sensor is greater than a preset sensing value, it is considered that the test fixture part is damaged; When performing an impact test or a vibration test on the test equipment, if the change amplitude of the sensing value of the second pressure sensor is greater than the second preset amplitude or the change amplitude of the sensing value of the third pressure sensor is greater than the second preset amplitude, it is considered that the vibration isolator and the test fixture parts are damaged.

7. The multi-dimensional test fixture status monitoring method according to claim 1, characterized in that: The method further comprises: Multiply the first number by the weight i to get the first value; Multiply the second number by the weight s to obtain the second value; When the sum of the first value and the second value is greater than or equal to a third value, or when the test tool is used for the first time, or when the interval between the test tool and the last use is greater than the interval time threshold of the corresponding bolt, the user is prompted that the bolt needs maintenance; wherein the third value is the product of the bolt maintenance number threshold and the bolt maintenance coefficient r.

8. The multi-dimensional test tool status monitoring method according to any one of claims 1 to 7, characterized in that: The test equipment is fixed to the test fixture by bolts, and a vibration isolator is placed between the test equipment and the test fixture; The test fixture is also fixed to the test table by bolts.

9. A multi-dimensional test tool status monitoring system, characterized in that: The system is used to execute the multi-dimensional test tooling status monitoring method described in any one of claims 1-8.

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