CN113984315A - Method and system for detecting bolt in vibration simulation test - Google Patents
Method and system for detecting bolt in vibration simulation test Download PDFInfo
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- CN113984315A CN113984315A CN202111444722.2A CN202111444722A CN113984315A CN 113984315 A CN113984315 A CN 113984315A CN 202111444722 A CN202111444722 A CN 202111444722A CN 113984315 A CN113984315 A CN 113984315A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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Abstract
The application relates to a method and a system for detecting a bolt in a vibration simulation test, which comprise the following steps: it includes: performing a vibration simulation test on the part to be tested and suspending the vibration simulation test after the vibration simulation test is operated for a period of time; shooting a bolt on a part under test in a static state to obtain a detection image; judging whether a discontinuous fixed torsion line appears in the detection image; if the bolts at the preset positions of the parts to be tested have discontinuous fixed torsion lines, stopping the vibration simulation test; and if the bolt at the preset position of the part to be tested does not have a discontinuous constant torsion line, periodically carrying out a vibration simulation test on the part to be tested until the bolt at the preset position of the part to be tested has the discontinuous constant torsion line, and stopping the vibration simulation test or finishing the vibration simulation test with the set period number. Therefore, the bolt state can be accurately and quickly checked by replacing manual on-duty checking through the scheme, the working efficiency is obviously improved, and the testing cost is greatly reduced.
Description
Technical Field
The application relates to the field of vibration tests of automobile parts, in particular to a method and a system for detecting a bolt in a vibration simulation test.
Background
The road simulation test bed can be used for simulating the stress condition of the load of each part in the running process of a vehicle. The failure problem in the road test can be rapidly reproduced through the cab vibration endurance test carried out by the road test bed. In the test process, the tested part and the rack need to be checked regularly, the problems of the tested part and the rack are found in time, and the smooth test is ensured. At present, a manual on-duty mode is adopted to monitor the test, and after the test bench stops running every 4 hours, the test bench is checked to confirm whether the bolt is loosened or not.
However, in the related art, the abnormal human eyes when the bolt is just loosened cannot be identified and cannot be processed in time; and the on-duty personnel can not observe and check at any time, and the point inspection may have missed inspection. The problems lead to the fact that faults cannot be identified and parts cannot be protected at the first time in the test process, and safety risks can exist in the test process.
Disclosure of Invention
The embodiment of the application provides a method and a system for detecting a bolt in a vibration simulation test, and aims to solve the problem that the bolt is difficult to observe and check manually in the vibration simulation test in the related art.
In a first aspect, a method for detecting a bolt in a vibration simulation test is provided.
A method for detecting a bolt in a vibration simulation test comprises the following steps:
performing a vibration simulation test on a part to be tested, and suspending the vibration simulation test after the vibration simulation test is operated for a period of time, wherein a constant torsion line extending to the surface of the part to be tested is marked on a bolt of the part to be tested;
shooting a bolt on a part under test in a static state to obtain a detection image;
judging whether discontinuous constant torsion lines appear in the detection image;
if the bolts at the preset positions of the parts to be tested have discontinuous fixed torsion lines, stopping the vibration simulation test;
and if the bolt at the preset position of the part to be tested does not have a discontinuous constant torsion line, periodically carrying out a vibration simulation test on the part to be tested until the bolt at the preset position of the part to be tested has the discontinuous constant torsion line, and stopping the vibration simulation test or finishing the vibration simulation test with the set period number.
By the scheme, the operation of the vibration simulation test can be suspended, the bolt on the part to be tested in a static state can be photographed, a clear detection image of the bolt on the part to be tested can be obtained, and the vibration simulation test can be selected to be stopped or continued after whether a discontinuous constant torsion line appears in the detection image is judged according to the obtained detection image; therefore, when this scheme of adoption, can adopt the camera to take a picture to the bolt on the part of test that is in pause state, utilize and decide the line of torsion and accurately judge whether the bolt takes place to become flexible, and then the condition difficult to discern when avoiding artifical direct look over bolt state, also further avoid artifical guard simultaneously, and can appear in time discovering and handling after the time period of next time after the bolt becomes flexible, show the security that improves the part of test in vibration simulation test to greatly reduced test cost.
In some embodiments, before the determining whether the discontinuous fixed torsion lines appear in the detection image, the method includes:
acquiring bolt pictures of which the set number of constant torsion lines are continuous and the set number of the discontinuous constant torsion lines are discontinuous;
and obtaining a bolt judgment model according to the bolt pictures of the continuous fixed torsion line and the discontinuous fixed torsion line.
In some embodiments, the obtaining a bolt judgment model according to the bolt picture with the continuous and discontinuous fixed torsion lines includes:
classifying bolts with continuous part of fixed torsion lines and bolts with discontinuous fixed torsion lines to obtain a bolt data set;
and identifying and training the bolt picture with the other part of continuous fixed torsion lines and discontinuous fixed torsion lines through a bolt data set to obtain a bolt judgment model capable of judging and classifying whether the fixed torsion lines are continuous or not.
Through the scheme, the bolt data set is identified and trained by utilizing the bolt pictures with continuous fixed torsion lines and discontinuous fixed torsion lines, the bolt judgment model capable of smoothly identifying the fixed torsion lines is obtained, automatic and accurate judgment can be successfully carried out on the detection image of the bolt in the static state in the vibration simulation test, the manual visual identification is avoided, the response speed is high, the follow-up steps can be rapidly carried out after the detection result is obtained, and the vibration simulation test efficiency of the part subject is effectively improved.
In some embodiments, the capturing the bolt on the part under test in the stationary state before obtaining the detection image includes:
judging whether the vibration simulation test is suspended;
if the vibration simulation test is not suspended, periodically judging whether the vibration simulation test is suspended;
if the vibration simulation test is suspended, the bolt on the part under test in a static state is photographed, and a detection image is obtained.
Through the scheme, whether the vibration simulation test is paused or not is further judged before the bolt is shot, so that the situation that the part to be tested and the bolt are judged to be in the shooting static state under the non-vibration state when the vibration simulation test simulates stable road conditions, the bolt which moves again after being temporarily static is shot and an unclear detection image is obtained is avoided, the part to be tested can be accurately shot under the pause state of the vibration simulation test, and the accuracy of subsequent detection results is further ensured.
In some embodiments, the determining whether the vibration simulation test is suspended includes:
integrally shooting the part to be tested at set time intervals in the operation process of the vibration simulation test to obtain position images at different time points, wherein the set time is longer than the set duration of a non-vibration state in the vibration simulation test;
and judging whether the vibration simulation test is suspended or not according to the position images of the current time point and at least one previous time point.
Through the scheme, through the position image of two continuous time points, and the time interval of two time points is greater than the settlement duration of non-vibration state in the vibration simulation test, and then can judge whether the vibration simulation test pauses fast, and start the judgement testing process of start bolt after the pause, the accuracy that detects the bolt has been improved greatly, and this shooting process, the judgement process is the operation outside being independent of the vibration simulation test process, need not to make too much adjustment to the in-process of vibration simulation test itself, and then can the high efficiency carry out this actual setting of judgement logic.
In some embodiments, the determining whether the vibration simulation test is suspended according to the position images at the current time point and at least one previous time point includes:
judging whether the position images of each time point have difference;
if the position images of two continuous time points are not different, judging that the vibration simulation test is suspended;
and if the position images of two continuous time points are different, judging that the vibration simulation test is not suspended.
Through the scheme, whether the vibration simulation test is suspended or not can be judged by judging whether the position images of two continuous time points are different, the judgment and detection process of the bolt is started after the suspension, the accuracy of bolt detection is greatly improved, the judgment process is fast, the result is accurate, and the realization is easy.
In a second aspect, the present application provides a system for detecting a bolt in a vibration simulation test.
A system for detecting a bolt in a vibration simulation test, comprising:
a vibration simulation test device for performing a vibration simulation test on the part under test;
a first photographing device having a plurality of viewfinders for photographing at least bolts at respective preset positions of a part under test to obtain detection images;
the control equipment is used for judging whether discontinuous fixed torsion lines appear in the detection image or not; if the bolts at the preset positions of the parts to be tested have discontinuous constant torsion lines, controlling the vibration simulation test equipment to stop the vibration simulation test; and if the bolt at the preset position of the part to be tested does not have a discontinuous constant torsion line, controlling the vibration simulation test equipment to periodically perform a vibration simulation test on the part to be tested until the bolt at the preset position of the part to be tested has the discontinuous constant torsion line and stopping the vibration simulation test, or finishing the vibration simulation test with the set period number.
Through the scheme, the bolt at the preset position on the part which can be automatically subjected to test in the process of the vibration simulation test equipment is shot and detected and judged, the subsequent test process of the vibration simulation test can be controlled according to the judgment result, the situation that the bolt state is difficult to identify when the bolt state is directly checked manually is avoided, manual attendance is further avoided, the bolt can be found and processed in time after the next time period after the bolt is loosened, the safety of the part which is subjected to test in the vibration simulation test is obviously improved, and the test cost is greatly reduced.
In some embodiments, the control device is further configured to determine whether the vibration simulation test is suspended;
if the vibration simulation test is not suspended, periodically judging whether the vibration simulation test is suspended;
if the vibration simulation test is suspended, the bolt on the part under test in a static state is photographed, and a detection image is obtained.
By the scheme, whether the vibration simulation test is paused or not is further judged before the bolt on the part under test is photographed and detected, so that the situation that the bolt which moves again after being temporarily stopped is photographed and an unclear detection image is obtained due to the fact that the part under test and the bolt are judged to be in the still state capable of being photographed under the non-vibration state when the vibration simulation test simulates a stable road condition is avoided, the part under test can be accurately photographed under the paused state of the vibration simulation test, and the accuracy of a subsequent detection result is further guaranteed.
In some embodiments, the device further comprises a second shooting device connected with the judging device and used for shooting the whole part under test to obtain a position image;
the control equipment is also used for controlling the second shooting equipment to shoot the part to be tested integrally at set time intervals in the running process of the vibration simulation test and obtaining position images at different time points; wherein the set duration is longer than the set duration of the non-vibration state in the vibration simulation test;
the control device is further configured to determine whether the vibration simulation test is suspended according to the position images of the current time point and at least one previous time point.
Through the scheme, the position images of the parts under test at two continuous time points are obtained, the time interval of the two time points is greater than the set duration of the non-vibration state in the vibration simulation test, whether the vibration simulation test is suspended can be rapidly judged, the judgment and detection process of the bolt is started after the suspension, the accuracy of bolt detection is greatly improved, the shooting process and the judgment process are independent of the operation outside the vibration simulation test process, excessive adjustment is not needed to be made in the vibration simulation test process, and the actual setting of the judgment logic can be rapidly and efficiently carried out.
In some embodiments, the control device is configured to determine whether there is a difference between the position images at the respective time points;
if the position images of two continuous time points are not different, judging that the vibration simulation test is suspended;
and if the position images of two continuous time points are different, judging that the vibration simulation test is not suspended.
Through the scheme, whether the vibration simulation test is suspended or not can be judged by judging whether the position images of two continuous time points are different, the judgment and detection process of the bolt is started after the suspension, the accuracy of bolt detection is greatly improved, the judgment process is fast, the result is accurate, and the realization is easy.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a method, a device and a system for detecting a bolt in a vibration simulation test, and the method, the device and the system can pause the operation of the vibration simulation test, can photograph the bolt on a part to be detected in a static state, can further obtain a clear detection image of the bolt on the part to be detected, and can select to stop the vibration simulation test or continue the vibration simulation test after judging whether a discontinuous fixed torsion line appears in the detection image according to the obtained detection image; therefore, when this scheme of adoption, can adopt the camera to take a picture to the bolt on the part of test that is in pause state, utilize and decide the line of torsion and accurately judge whether the bolt takes place to become flexible, and then the condition difficult to discern when avoiding artifical direct look over bolt state, also further avoid artifical guard simultaneously, and can appear in time discovering and handling after the time period of next time after the bolt becomes flexible, show the security that improves the part of test in vibration simulation test to greatly reduced test cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic overall flow chart of a method for detecting a bolt in a vibration simulation test provided in an embodiment of the present application;
FIG. 2 is a schematic partial flow chart diagram provided in accordance with another embodiment of the present application;
fig. 3 is a schematic flowchart of step S020 according to an embodiment of the present application;
FIG. 4 is a schematic partial flow chart diagram provided in accordance with another embodiment of the present application;
fig. 5 is a schematic flowchart of step S110 provided in the embodiment of the present application;
fig. 6 is a schematic flowchart of step S112 according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a method and a system for detecting a bolt in a vibration simulation test, which can solve the problem that the bolt is difficult to observe and check manually in the vibration simulation test in the related art.
In a first aspect, the application provides a method for detecting a bolt in a vibration simulation test.
Referring to fig. 1, a method for detecting a bolt in a vibration simulation test includes:
s100, performing a vibration simulation test on the part to be tested, and suspending the vibration simulation test after the vibration simulation test is operated for a period of time, wherein a constant torsion line extending to the surface of the part to be tested is marked on a bolt of the part to be tested;
s200, shooting a bolt on the part to be tested in a static state to obtain a detection image;
s300, judging whether discontinuous fixed torsion lines appear in the detection image;
s410, if the bolt at the preset position of the part to be tested has a discontinuous constant torsion line, stopping the vibration simulation test;
and S420, if the bolt at the preset position of the part to be tested does not have a discontinuous constant torsion line, periodically performing a vibration simulation test on the part to be tested until the bolt at the preset position of the part to be tested has the discontinuous constant torsion line, and stopping the vibration simulation test or finishing the vibration simulation test with the set period number.
The bolts at the preset positions of the parts under test may be all bolts on the parts under test, or may be partial bolts on the parts under test, and are specifically set by the related technical personnel according to the functional functions of the bolts at different positions.
In the scheme, the operation of the vibration simulation test can be suspended, the bolt on the part to be tested in a static state can be photographed, a clear detection image of the bolt on the part to be tested can be obtained, and the vibration simulation test can be selected to be stopped or continued after whether a discontinuous constant torsion line appears in the detection image is judged according to the obtained detection image; therefore, when this scheme of adoption, can adopt the camera to take a picture to the bolt on the part of test that is in pause state, utilize and decide the line of torsion and accurately judge whether the bolt takes place to become flexible, and then the condition difficult to discern when avoiding artifical direct look over bolt state, also further avoid artifical guard simultaneously, and can appear in time discovering and handling after the time period of next time after the bolt becomes flexible, show the security that improves the part of test in vibration simulation test to greatly reduced test cost.
Optionally, referring to fig. 2, before the step S300 of determining whether a discontinuous fixed torsion line appears in the detection image, the method includes:
s010, acquiring a set number of bolt pictures with continuous fixed torsion lines and discontinuous fixed torsion lines;
and S020, obtaining a bolt judgment model according to the bolt picture with the continuous fixed torsion line and the discontinuous fixed torsion line.
In step S300, the obtained bolt determination model identifies the torsion lines in the detection image. Step S010 and step S020 need to be completed before step S100, so that step S300 can be smoothly performed when the vibration simulation test is performed.
Optionally, referring to fig. 3, in the step S020, obtaining a bolt judgment model according to the bolt picture in which the constant torsion line is continuous and discontinuous, where the method includes:
s021, classifying bolts with continuous fixed torsion lines and bolts with discontinuous fixed torsion lines to obtain a bolt data set;
s022, identifying and training bolt pictures with continuous fixed torsion lines and discontinuous fixed torsion lines of the other part through a bolt data set to obtain a bolt judgment model capable of judging and classifying whether the fixed torsion lines are continuous or not.
According to the arrangement, the bolt data set is identified and trained by utilizing the bolt pictures of continuous and discontinuous fixed torsion lines, the bolt judgment model capable of smoothly identifying the fixed torsion lines is obtained, automatic and accurate judgment can be successfully carried out on the detection image of the bolt in a static state in the vibration simulation test, the manual visual identification is avoided, the response speed is high, the follow-up steps can be rapidly carried out after the detection result is obtained, and the vibration simulation test efficiency of the part under test is effectively improved.
In addition, when the vibration simulation test is performed on the part to be tested, the vibration test for simulating different road conditions is performed on the part to be tested, and then the vibration simulation test has a non-vibration state for simulating a steady road condition without vibration or simulating parking, and the state needs to be maintained for a preset duration in the vibration simulation test process, so that the part to be tested and the bolt thereon are in a short static state within the set duration, and therefore when the bolt on the part to be tested in the static state is shot, shooting and subsequent checking of the bolt in the short static state need to be avoided, and an unclear picture when the bolt starts to move after being temporarily static is prevented from being shot.
Further, referring to fig. 4, the step S200 includes, before capturing an image of a bolt on a part under test in a stationary state and obtaining a detection image:
s110, judging whether the vibration simulation test is suspended;
s120, if the vibration simulation test is not suspended, periodically judging whether the vibration simulation test is suspended;
and S130, if the vibration simulation test is suspended, shooting the bolt on the part to be tested in the static state, and obtaining a detection image.
Step S110 and step S100 are started synchronously, so that the vibration simulation test can be continuously judged, and step S200 can be performed after the vibration simulation test is suspended.
By the arrangement, whether the vibration simulation test is suspended or not is further judged before the bolt is shot, so that the situation that the part under test and the bolt are judged to be in a shooting static state under the non-vibration state when the vibration simulation test simulates a stable road condition, the bolt which moves again after being temporarily static is shot and an unclear detection image is obtained is avoided, the part under test can be accurately shot under the suspended state of the vibration simulation test, and the accuracy of a subsequent detection result is further ensured.
Alternatively, referring to fig. 5, the step S110 of determining whether the vibration simulation test is suspended includes:
s111, shooting the whole part to be tested at set time intervals in the operation process of the vibration simulation test to obtain position images at different time points, wherein the set time is longer than the set duration of a non-vibration state in the vibration simulation test;
and S112, judging whether the vibration simulation test is suspended or not according to the position images of the current time point and at least one previous time point.
Set up like this, position image through two continuous time points, and the time interval of two time points is greater than the settlement duration of non-vibration state in the vibration simulation test, and then can judge whether the vibration simulation test pauses fast, and start the judgement testing process of start bolt after the pause, the accuracy that has improved the bolt detection greatly, and this shooting process, the judgement process is the operation outside being independent of the vibration simulation test process, need not to make too much adjustment to the in-process of vibration simulation test itself, and then can the high efficiency carry out this actual setting of judgement logic.
Alternatively, referring to fig. 6, the step S212 of determining whether the vibration simulation test is suspended according to the position images at the current time point and at least one previous time point includes:
s1121, judging whether the position images of each time point have differences;
s1122, if the position images of two continuous time points are not different, judging that the vibration simulation test is suspended;
and S1123, if the position images of two continuous time points are different, judging that the vibration simulation test is not suspended.
By the arrangement, whether the vibration simulation test is suspended or not can be judged by judging whether the position images of two continuous time points are different, and the judgment and detection process of the bolt is started after the suspension, so that the accuracy of bolt detection is greatly improved, and the method has the advantages of quick judgment process, accurate result and easiness in realization.
In a second aspect, the present application provides a system for detecting a bolt in a vibration simulation test.
A system for detecting a bolt in a vibration simulation test, comprising:
a vibration simulation test device for performing a vibration simulation test on the part under test;
a first photographing device having a plurality of viewfinders for photographing at least bolts at respective preset positions of a part under test to obtain detection images;
the control equipment is used for judging whether discontinuous fixed torsion lines appear in the detection image or not; if the bolts at the preset positions of the parts to be tested have discontinuous constant torsion lines, controlling the vibration simulation test equipment to stop the vibration simulation test; and if the bolt at the preset position of the part to be tested does not have a discontinuous constant torsion line, controlling the vibration simulation test equipment to periodically perform a vibration simulation test on the part to be tested until the bolt at the preset position of the part to be tested has the discontinuous constant torsion line and stopping the vibration simulation test, or finishing the vibration simulation test with the set period number.
Further, the control device is also used for judging whether the vibration simulation test is suspended;
if the vibration simulation test is not suspended, periodically judging whether the vibration simulation test is suspended;
if the vibration simulation test is suspended, the bolt on the part under test in a static state is photographed, and a detection image is obtained.
Further, the device also comprises a second shooting device which is connected with the judging device and is used for shooting the whole part to be tested to obtain a position image;
the control equipment is also used for controlling the second shooting equipment to shoot the part to be tested integrally at set time intervals in the running process of the vibration simulation test and obtaining position images at different time points; wherein the set duration is longer than the set duration of the non-vibration state in the vibration simulation test;
the control device is further configured to determine whether the vibration simulation test is suspended according to the position images of the current time point and at least one previous time point.
Further, the control device is configured to determine whether there is a difference between the position images at the respective time points;
if the position images of two continuous time points are not different, judging that the vibration simulation test is suspended;
and if the position images of two continuous time points are different, judging that the vibration simulation test is not suspended.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on this understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a system (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for causing a terminal device to execute the methods according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for detecting a bolt in a vibration simulation test is characterized by comprising the following steps:
performing a vibration simulation test on a part to be tested, and suspending the vibration simulation test after the vibration simulation test is operated for a period of time, wherein a constant torsion line extending to the surface of the part to be tested is marked on a bolt of the part to be tested;
shooting a bolt on a part under test in a static state to obtain a detection image;
judging whether discontinuous constant torsion lines appear in the detection image;
if the bolts at the preset positions of the parts to be tested have discontinuous fixed torsion lines, stopping the vibration simulation test;
and if the bolt at the preset position of the part to be tested does not have a discontinuous constant torsion line, periodically carrying out a vibration simulation test on the part to be tested until the bolt at the preset position of the part to be tested has the discontinuous constant torsion line, and stopping the vibration simulation test or finishing the vibration simulation test with the set period number.
2. The method for detecting the bolt in the vibration simulation test according to claim 1, wherein before the step of judging whether the discontinuous torsion lines appear in the detection image, the method comprises the following steps:
acquiring bolt pictures of which the set number of constant torsion lines are continuous and the set number of the discontinuous constant torsion lines are discontinuous;
and obtaining a bolt judgment model according to the bolt pictures of the continuous fixed torsion line and the discontinuous fixed torsion line.
3. The method for detecting the bolt in the vibration simulation test according to claim 2, wherein the obtaining of the bolt judgment model according to the bolt picture in which the constant torsion line is continuous and discontinuous comprises:
classifying bolts with continuous part of fixed torsion lines and bolts with discontinuous fixed torsion lines to obtain a bolt data set;
and identifying and training the bolt picture with the other part of continuous fixed torsion lines and discontinuous fixed torsion lines through a bolt data set to obtain a bolt judgment model capable of judging and classifying whether the fixed torsion lines are continuous or not.
4. The method of detecting a bolt in a vibration simulation test according to claim 1, wherein the step of capturing an image of the bolt on the part under test in a stationary state before obtaining the detection image comprises:
judging whether the vibration simulation test is suspended;
if the vibration simulation test is not suspended, periodically judging whether the vibration simulation test is suspended;
if the vibration simulation test is suspended, the bolt on the part under test in a static state is photographed, and a detection image is obtained.
5. The method of claim 4, wherein the determining whether the vibration simulation test is suspended comprises:
integrally shooting the part to be tested at set time intervals in the operation process of the vibration simulation test to obtain position images at different time points, wherein the set time is longer than the set duration of a non-vibration state in the vibration simulation test;
and judging whether the vibration simulation test is suspended or not according to the position images of the current time point and at least one previous time point.
6. The method for detecting a bolt in a vibration simulation test according to claim 5, wherein the judging whether the vibration simulation test is suspended or not according to the position images of the current time point and at least one previous time point comprises:
judging whether the position images of each time point have difference;
if the position images of two continuous time points are not different, judging that the vibration simulation test is suspended;
and if the position images of two continuous time points are different, judging that the vibration simulation test is not suspended.
7. The utility model provides a detection system of bolt in vibration simulation test which characterized in that, it includes:
a vibration simulation test device for performing a vibration simulation test on the part under test;
a first photographing device having a plurality of viewfinders for photographing at least bolts at respective preset positions of a part under test to obtain detection images;
the control equipment is used for judging whether discontinuous fixed torsion lines appear in the detection image or not; if the bolts at the preset positions of the parts to be tested have discontinuous constant torsion lines, controlling the vibration simulation test equipment to stop the vibration simulation test; and if the bolt at the preset position of the part to be tested does not have a discontinuous constant torsion line, controlling the vibration simulation test equipment to periodically perform a vibration simulation test on the part to be tested until the bolt at the preset position of the part to be tested has the discontinuous constant torsion line and stopping the vibration simulation test, or finishing the vibration simulation test with the set period number.
8. The system of claim 7, wherein the control device is further configured to determine whether the vibration simulation test is suspended;
if the vibration simulation test is not suspended, periodically judging whether the vibration simulation test is suspended;
if the vibration simulation test is suspended, the bolt on the part under test in a static state is photographed, and a detection image is obtained.
9. The system for detecting a bolt in a vibration simulation test according to claim 8, wherein: the second shooting device is connected with the judging device and is used for shooting the whole part to be tested to obtain a position image;
the control equipment is also used for controlling the second shooting equipment to shoot the part to be tested integrally at set time intervals in the running process of the vibration simulation test and obtaining position images at different time points; wherein the set duration is longer than the set duration of the non-vibration state in the vibration simulation test;
the control device is further configured to determine whether the vibration simulation test is suspended according to the position images of the current time point and at least one previous time point.
10. The system for detecting a bolt in a vibration simulation test according to claim 9, wherein:
the control equipment is used for judging whether a difference exists between the position images at each time point;
if the position images of two continuous time points are not different, judging that the vibration simulation test is suspended;
and if the position images of two continuous time points are different, judging that the vibration simulation test is not suspended.
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| CN202111444722.2A CN113984315A (en) | 2021-11-30 | 2021-11-30 | Method and system for detecting bolt in vibration simulation test |
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| CN202111444722.2A CN113984315A (en) | 2021-11-30 | 2021-11-30 | Method and system for detecting bolt in vibration simulation test |
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| CN113984315A true CN113984315A (en) | 2022-01-28 |
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| CN202111444722.2A Pending CN113984315A (en) | 2021-11-30 | 2021-11-30 | Method and system for detecting bolt in vibration simulation test |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351423A (en) * | 2020-03-19 | 2020-06-30 | 郑州陆根智能技术有限公司 | Flange connecting bolt looseness monitoring method |
| CN111814404A (en) * | 2020-07-22 | 2020-10-23 | 华东交通大学 | Locomotive bogie bolt loosening fault detection method |
| CN212340664U (en) * | 2020-05-09 | 2021-01-12 | 东风商用车有限公司 | Vehicle frame for commercial vehicle cab road vibration simulation endurance test |
| CN112365461A (en) * | 2020-11-06 | 2021-02-12 | 北京格灵深瞳信息技术有限公司 | Fastener loosening identification method, system, terminal and storage medium |
| JP2021015041A (en) * | 2019-07-12 | 2021-02-12 | Ｊｆｅエンジニアリング株式会社 | Bolt inspection device, bolt inspection system, bolt inspection method, and program |
| JP2021043089A (en) * | 2019-09-12 | 2021-03-18 | 株式会社日立ソリューションズ | Vibration test analyzer and vibration test analysis method |
| CN213209433U (en) * | 2020-06-02 | 2021-05-14 | 隆昌瑞博轨道科技有限公司 | Bolt looseness simulation test system |
| CN112819779A (en) * | 2021-01-29 | 2021-05-18 | 北京明略软件***有限公司 | Method, device and equipment for identifying bolt looseness |
| CN112834146A (en) * | 2021-02-07 | 2021-05-25 | 上海振高汽车科技有限公司 | Device, method, terminal and medium for detecting looseness prevention degree of automobile fastener |
| JP2021113755A (en) * | 2020-01-20 | 2021-08-05 | Ｊｆｅエンジニアリング株式会社 | Bolt inspection device, bolt inspection system, bolt inspection method, and program |
-
2021
- 2021-11-30 CN CN202111444722.2A patent/CN113984315A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021015041A (en) * | 2019-07-12 | 2021-02-12 | Ｊｆｅエンジニアリング株式会社 | Bolt inspection device, bolt inspection system, bolt inspection method, and program |
| JP2021043089A (en) * | 2019-09-12 | 2021-03-18 | 株式会社日立ソリューションズ | Vibration test analyzer and vibration test analysis method |
| JP2021113755A (en) * | 2020-01-20 | 2021-08-05 | Ｊｆｅエンジニアリング株式会社 | Bolt inspection device, bolt inspection system, bolt inspection method, and program |
| CN111351423A (en) * | 2020-03-19 | 2020-06-30 | 郑州陆根智能技术有限公司 | Flange connecting bolt looseness monitoring method |
| CN212340664U (en) * | 2020-05-09 | 2021-01-12 | 东风商用车有限公司 | Vehicle frame for commercial vehicle cab road vibration simulation endurance test |
| CN213209433U (en) * | 2020-06-02 | 2021-05-14 | 隆昌瑞博轨道科技有限公司 | Bolt looseness simulation test system |
| CN111814404A (en) * | 2020-07-22 | 2020-10-23 | 华东交通大学 | Locomotive bogie bolt loosening fault detection method |
| CN112365461A (en) * | 2020-11-06 | 2021-02-12 | 北京格灵深瞳信息技术有限公司 | Fastener loosening identification method, system, terminal and storage medium |
| CN112819779A (en) * | 2021-01-29 | 2021-05-18 | 北京明略软件***有限公司 | Method, device and equipment for identifying bolt looseness |
| CN112834146A (en) * | 2021-02-07 | 2021-05-25 | 上海振高汽车科技有限公司 | Device, method, terminal and medium for detecting looseness prevention degree of automobile fastener |
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