Test control method and system for bump testing machine

Abstract

The invention provides a test control method and system for a bump testing machine, and belongs to the technical field of bump test. The test control method for the bumping testing machine comprises the following steps: acquiring characteristic parameters and preset test parameters of a to-be-tested product, placing the to-be-tested product in a bumping box in the bumping testing machine, determining the test parameters according to the preset test parameters of the to-be-tested product, and then performing testing. Detecting and collecting collision data in the testing process in real time through a sensor, and evaluating the collision performance of the to-be-tested product according to the collision data. The invention further designs a test control system for the bump testing machine according to the method. According to the test control method, different preset test parameters are set for different to-be-tested products, higher pertinence is achieved, and the collision performance conclusion obtained according to collision data analysis is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of bump test, and in particular to a test control method and system for a bump test machine. Background Art

[0002] The bump test is an experimental method used to study and evaluate the performance of materials, products or structures when they are subjected to unexpected impact or collision. This experiment usually simulates real-world collision situations, such as traffic accidents, collisions during sports, falls, etc., to evaluate the durability, safety and possible degree of damage of the object under test; the main purpose of the bump test is to understand the mechanical response of the object under test when it is impacted or collided, including the transmission of impact force, absorption and dissipation of energy, deformation and damage of the structure, etc. Through this information, it is possible to evaluate whether the performance of the object under test meets the design requirements or safety standards, and provide a basis for improving the design.

[0003] Bump tests can usually be divided into many types, such as automobile safety collision tests, material crash resistance tests, product drop tests, etc. Automobile safety collision tests are usually conducted using simulated collision devices or actual vehicles, by setting different collision speeds, angles and collision objects (such as head-on collisions, side collisions, rear-end collisions, etc.) to simulate real traffic accident scenes; material crash resistance tests usually use standard impact devices to impact materials, and evaluate the crash resistance of materials by measuring indicators such as deformation and degree of cracking after the impact; product drop tests usually simulate the falling of products at different heights and angles, and evaluate their drop performance by observing changes in the product's appearance, functions, etc.

[0004] The bump tester is an important device used to simulate the bumps and impacts that a product may suffer during transportation and use in order to evaluate its durability and reliability. Traditional bump testers usually use fixed impact force and frequency for testing, which makes it difficult to truly simulate the complex bump situations in the actual use environment. Therefore, there is a need for a test control method and system that can more realistically simulate the actual bump environment and accurately control the test parameters. Summary of the invention

[0005] The purpose of the present invention is to provide a test control method and system for a bump testing machine, aiming to solve the technical problems of low simulation and low precision of bump experiments in the prior art. The test control method of the present invention can more realistically simulate the actual bump environment, accurately control the test parameters, and perform precise bump experiments on the items to be tested, thereby obtaining the bump performance of the products to be tested.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0007] The present invention provides a test control method for a bump test machine, comprising the following steps:

[0008] Obtain characteristic parameters of the product to be tested and preset test parameters;

[0009] Placing the product to be tested in a bump box in a bump testing machine;

[0010] Determine the test parameters according to the preset test parameters of the product to be tested, and then perform the test;

[0011] Detect and collect collision data during the test in real time through sensors;

[0012] The collision performance of the product to be tested is evaluated based on the collision data.

[0013] Furthermore, the characteristic parameters include collision data collected from the product to be tested during actual use.

[0014] Furthermore, the preset test parameters are specifically pre-processed on the collision data of the product during the actual use, so as to obtain effective preset test parameters.

[0015] Furthermore, the test parameters include impact speed, impact angle and impact times.

[0016] Furthermore, the preprocessing includes filtering and feature extraction.

[0017] Furthermore, the collision data includes data such as impact force and acceleration.

[0018] The present invention also provides a test control system for a bump test machine, comprising:

[0019] Data acquisition module: used to collect characteristic parameters of the product to be tested in the actual use environment;

[0020] Data processing module: used to pre-process the collected characteristic parameters;

[0021] Parameter setting module: used to set the test parameters of the bump tester according to the processed bump data;

[0022] Test control module: used to control the bump tester to perform tests according to the set test parameters;

[0023] Result analysis module: used to record data during the test and analyze the test results.

[0024] Furthermore, the test control module includes: a motor start-stop module, and the motor start-stop module is used to manually or remotely start and stop the motor of the bump tester according to set time parameters.

[0025] Furthermore, the test control module also includes: controlling the rotation speed of the bump test box through a reducer in the bump test machine.

[0026] Furthermore, the result analysis module includes collecting actual speed data of the speed measuring instrument in the bump tester, sensor sensing data and the degree of damage of the object to be tested in the bump box in the bump tester, and analyzing them.

[0027] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0028] The present invention obtains preset test parameters by collecting characteristic parameters of the product to be tested during actual use and preprocessing them. Different preset test parameters are set for different products to be tested, which is more targeted and the collision performance obtained based on the collision data analysis is more accurate. In addition, the present invention performs real-time detection of the obtained collision data through sensors, which is convenient for subsequent accurate analysis of the collision data. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a bump test machine in the test control method for the bump test machine of the present invention;

[0030] Figure 1 Among them, 1-bump box, 2-card plate, 3-bracket, 4-pulley, 5-explosion-proof motor and friction planetary stepless reducer, 6-speed sensor contact;

[0031] Figure 2 The present invention is a flow chart of the test control method for the bump test machine. DETAILED DESCRIPTION

[0032] Embodiments of the present disclosure are described below with reference to the accompanying drawings. It should be understood that the drawings are not necessarily to scale. The described embodiments are exemplary and are not intended to limit the present disclosure, and the features of the embodiments may be combined or replaced in the same or similar manner. The singular forms of "a", "said" and "the" used in the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0033] The present invention refers to the attached Figure 1A bump tester is provided, which includes an explosion-proof motor, a reducer, a pulley transmission device, a motor start-stop control, a bump box, a machine base and a stand, etc.; wherein each structure meets the following standards respectively: the model of the explosion-proof motor is YB90L-4, the 1.5KW explosion-proof grade is DIIBT4, the protection grade is IP55, and the motor products with explosion-proof motor production qualifications must be issued with a motor explosion-proof certificate; the reducer, the type of the reducer is a friction planetary stepless speed changer, the speed regulation range is 200-1000r / min, and it is linearly manually adjustable; the pulley transmission device meets the standard: GB10412-2007 "Standard Specification for Ordinary V-Belt Pulleys" , GB / T1171-2006 "Ordinary V-belts for general transmission", ensure the final output speed of the output shaft: 30±2r / min; motor start and stop control, meet the standard: GB7251.1-97 "Low-voltage complete switchgear", can control the motor start and stop through time setting, can start and stop the motor manually or remotely, with overload, short circuit, undervoltage, phase loss, leakage protection, cables and electrical components are made of national high-quality products; speed measuring instrument, with high-precision digital display, with Hall sensor tachometer; bump box, internal dimensions: 445X318X165, quantity 2, box lining material polyethylene plate, thickness ≥6.35mm; as well as necessary structures such as machine base and stand.

[0034] The present invention also provides a test control method for a bump test machine, comprising the following steps:

[0035] Step S100: Acquire characteristic parameters of the product to be tested and preset test parameters;

[0036] Step S200: placing the product to be tested in a bump box in a bump testing machine;

[0037] Step S300: determining the test parameters according to the preset test parameters of the product to be tested, and then performing the test;

[0038] Step S400: detecting and collecting collision data in the test process in real time through sensors;

[0039] Step S500: evaluating the collision performance of the product to be tested according to the collision data.

[0040] Step S100: Acquire characteristic parameters of the product to be tested and preset test parameters;

[0041] The present invention first obtains the characteristic parameters of the product to be tested, and sets the test parameters of the experiment according to the characteristic parameters, wherein the characteristic parameters include not only information such as the material, size, weight, etc. of the product, but also the collision data of the product to be tested during actual use. The material, size, weight, etc. data of the product to be tested have a great influence on the parameter setting of the collision experiment. The present invention combines the above information data with the collision data to analyze the product to be tested, so as to predict collision experiment parameters that are more in line with the actual situation, and then when the product is tested by a collision tester, the conclusion error is smaller.

[0042] In the present invention, the characteristic parameters include collision data collected from the product to be tested during actual use.

[0043] In the present invention, the preset test parameters include preprocessing the collision data of the product during the actual use process, so as to obtain effective preset test parameters.

[0044] After obtaining the characteristic parameters, the present invention pre-processes the collision data therein to remove the influence of accidental factors on the collision data, thereby reducing experimental errors.

[0045] In the present invention, the preprocessing preferably includes filtering and feature extraction.

[0046] Those skilled in the art may also use preprocessing means well known to those skilled in the art but not mentioned in the present invention to preprocess the collision data.

[0047] Step S200: placing the product to be tested in a bump box in a bump testing machine;

[0048] After completing the preparatory work, place the product to be tested in the Figure 1 The bump test is carried out in the bump box of the bump test machine embodied in the embodiment.

[0049] Step S300: determining the test parameters according to the preset test parameters of the product to be tested, and then performing the test;

[0050] After placing the product to be tested in the bump box, determine the test parameters according to the preset test parameters, set the bump test machine, and start the test in a normal and safe environment.

[0051] In the present invention, the test parameters preferably include impact speed, impact angle and impact number. For example, for products with harder materials, a lower impact speed and a larger impact angle can be set; for products with larger sizes, a larger number of impacts can be set.

[0052] Step S400: detecting and collecting collision data in the test process in real time through sensors;

[0053] After the bump test begins, the data of the bump test is detected in real time by sensors and collected. The present invention preferably monitors the impact force by installing a force sensor in the bump test machine, monitors the displacement by installing a displacement sensor, and monitors the acceleration by installing an acceleration sensor.

[0054] In the present invention, the collision data preferably includes data such as impact force and acceleration.

[0055] Step S500: evaluating the collision performance of the product to be tested according to the collision data.

[0056] The present invention uses analysis theories well known to those skilled in the art to analyze the results, such as determining the collision resistance of the product by analyzing the relationship between impact force and displacement, and determining the shock resistance of the product by analyzing the change in acceleration.

[0057] The present invention also provides a test control system for a bump test machine as described in the above technical solution, comprising:

[0058] Data acquisition module: used to collect the collision data of the product to be tested in the actual use environment;

[0059] Data processing module: used to pre-process the collected collision data;

[0060] Parameter setting module: used to set the test parameters of the bump tester according to the processed bump data;

[0061] Test control module: used to control the bump tester to perform tests according to the set test parameters;

[0062] Result analysis module: used to record data during the test and analyze the test results.

[0063] Data acquisition module: used to collect the collision data of the product to be tested in the actual use environment;

[0064] The data acquisition module described in the present invention includes data such as the material, size, weight, etc. of the product, and also includes data on collisions during actual use of the product to be tested.

[0065] Data processing module: used to pre-process the collected collision data;

[0066] The present invention preprocesses the collected data to remove the influence of accidental factors on the data, wherein the technical means for preprocessing can be the technical means well known to those skilled in the art.

[0067] Parameter setting module: used to set the test parameters of the bump tester according to the processed bump data;

[0068] Test control module: used to control the bump tester to perform tests according to the set test parameters;

[0069] In the present invention, the test control module preferably includes a motor start-stop module, and the motor start-stop module is used to manually or remotely start and stop the motor of the bump tester according to set time parameters.

[0070] In the present invention, the test control module further comprises: controlling the rotation speed of the bump test box through a reducer in the bump test machine.

[0071] Result analysis module: used to record data during the test and analyze the test results.

[0072] In the present invention, the result analysis module preferably first collects the experimental result data of the bump test and then performs conclusion analysis; specifically, it includes collecting the actual speed data of the speed measuring instrument in the bump test machine and the degree of damage of the object to be tested in the bump box in the bump test machine, and analyzing them. The analysis method of the analysis can be a method familiar to technical personnel in this field.

[0073] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0074] Example 1

[0075] A bump testing machine

[0076] The bump test machine includes an explosion-proof motor, a reducer, a pulley transmission device, a motor start-stop control, a bump box, a machine base and a stand, etc.; wherein each structure meets the following standards respectively: the model of the explosion-proof motor is YB90L-4, the 1.5KW explosion-proof grade is DIIBT4, the protection grade is IP55, and the motor products with explosion-proof motor production qualifications must be issued with a motor explosion-proof certificate; the reducer, the type of the reducer is a friction planetary stepless speed changer, the speed range is 200-1000r / min, linear manual adjustable; the pulley transmission device meets the standards: GB10412-2007 "Ordinary V-belt Standard Specification", GB / T1 171-2006 "Ordinary V-belts for general transmission", ensure the final output speed of the output shaft: 30±2r / min; motor start and stop control, meet the standard: GB7251.1-97 "Low-voltage complete switchgear", can control the motor start and stop through time setting, can start and stop the motor manually or remotely, with overload, short circuit, undervoltage, phase loss, leakage protection, cables and electrical components are made of national high-quality products; speed measuring instrument, can be high-precision digital display, with Hall sensor tachometer; bump box, internal dimensions: 445X318X165, quantity 2, box lining material polyethylene plate, thickness ≥6.35mm; as well as necessary structures such as machine base and stand.

[0077] Example 2

[0078] A test control method for a bump test machine, which performs a bump test on a certain brand of computer radio frequency device, includes the following steps:

[0079] (1) Obtain the characteristic parameters of the product to be tested, including the material, size, weight and other data of the product. The size information of the product is obtained through a 3D scanner, the weight information of the product is obtained through a weighing instrument, and the material information of the product is obtained through a material analyzer. At the same time, the collision data of the product to be tested during actual use is collected;

[0080] (2) Preprocessing the collected characteristic parameters of the product to be tested, including filtering and feature extraction, to predict the test parameters of the experiment;

[0081] (3) Place the product to be tested in the bump test box of the bump test machine;

[0082] (4) According to the test parameters predicted for the product to be tested, the test parameters of the bump test machine are determined, the test parameters include impact speed, impact angle, impact number and other parameters, and then the test is performed, wherein the impact speed is adjusted by controlling the motor speed of the bump test machine, the impact angle is adjusted by adjusting the mechanical structure of the bump test machine, and the impact number is controlled by setting a counter;

[0083] (5) Various data during the test process are monitored in real time through sensors, including impact force, displacement, acceleration, etc. Among them, the impact force is monitored by installing a force sensor, the displacement is monitored by installing a displacement sensor, and the acceleration is monitored by installing an acceleration sensor.

[0084] (6) Analyze and process the monitored data to evaluate the collision performance of the product, such as judging the product's collision resistance by analyzing the relationship between impact force and displacement, and judging the product's seismic resistance by analyzing the change in acceleration.

[0085] Example 3

[0086] A test control system for a bump test machine, comprising:

[0087] (1) Data acquisition module, used to obtain characteristic parameters of the product to be tested. This module is implemented by exchanging data with various testing equipment such as 3D scanners, weighing instruments, material analyzers, etc., and manually collects collision data of the product to be tested during use;

[0088] (2) A data processing module, which is used to pre-process and predict test parameters based on the characteristic parameters of the product to be tested. This module is implemented through a built-in algorithm model. The algorithm model based on machine learning can predict the optimal test parameters based on a large amount of historical test data;

[0089] (3) Parameter setting module: used to set the test parameters of the bump tester according to the processed bump data;

[0090] (4) Test control module: used to control the bump tester to perform tests according to the set test parameters. This module is implemented by communicating with the control system of the bump tester, wherein the motor speed is adjusted, the mechanical structure is adjusted, the counter is set, etc. by sending control instructions;

[0091] (5) Result analysis module: used to record the data during the test and analyze the test results. In this module, various sensors such as force sensors, displacement sensors, acceleration sensors, etc. are used to monitor and collect various data during the test in real time. Then, the collected data is analyzed to evaluate the collision performance of the product. The analysis can be achieved through built-in data analysis algorithms. For example, an analysis algorithm based on statistics can calculate the average value and standard deviation of various data, and an analysis algorithm based on signal processing can filter and denoise the data.

[0092] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A test control method for a bump test machine, characterized in that: The following steps are involved: Obtain characteristic parameters of the product to be tested and preset test parameters; Placing the product to be tested in a bump box in a bump testing machine; Determine the test parameters according to the preset test parameters of the product to be tested, and then perform the test; Detect and collect collision data during the test in real time through sensors; The collision performance of the product to be tested is evaluated based on the collision data.

2. The test control method for a bump tester according to claim 1, characterized in that: The characteristic parameters include collision data collected from the product to be tested during actual use.

3. The test control method for a bump tester according to claim 2, characterized in that: The preset test parameters are specifically pre-processing the collision data of the product during the actual use process to obtain effective preset test parameters.

4. The test control method for a bump tester according to claim 1, characterized in that: The test parameters include impact speed, impact angle and impact number.

5. The test control method for a bump tester according to claim 3, characterized in that: The preprocessing includes filtering and feature extraction.

6. The test control method for a bump tester according to claim 1, characterized in that: The collision data includes data such as impact force and acceleration.

7. A test control system for a bump test machine, characterized in that: include: Data acquisition module: used to collect characteristic parameters of the product to be tested in the actual use environment; Data processing module: used to pre-process the collected characteristic parameters; Parameter setting module: used to set the test parameters of the bump tester according to the processed bump data; Test control module: used to control the bump tester to perform tests according to the set test parameters; Result analysis module: used to record data during the test and analyze the test results.

8. The test control system for a bump tester according to claim 7, characterized in that: The test control module includes: a motor start-stop module, and the motor start-stop module is used to manually or remotely start and stop the motor of the bump tester according to set time parameters.

9. The test control system for a bump tester according to claim 7, characterized in that: The test control module also includes: controlling the rotation speed of the bump test box through a reducer in the bump test machine.

10. The test control system for a bump tester according to claim 7, characterized in that: The result analysis module includes collecting actual rotation speed data of the rotation speed measuring instrument in the bump tester, sensor sensing data and the degree of damage of the object to be tested in the bump box in the bump tester, and analyzing them.

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