Controller vibration testing device and vibration testing method

Abstract

This application provides a controller vibration testing apparatus and a vibration testing method. The apparatus includes: a vibration unit configured to generate a vibration excitation signal; a vibration platform disposed on the vibration unit and configured to receive the vibration excitation signal and form a first vibration field; a vibration module disposed on the vibration platform and configured to receive the vibration excitation signal transmitted from the vibration platform and form a second vibration field; and a testing unit disposed on the vibration module and configured to transmit the received vibration excitation signal transmitted from the vibration module to a controller mounted on the testing unit for vibration testing of the controller; by adjusting the transmission path and excitation position of the vibration excitation signal on the vibration platform and vibration module, differentiated modulation of the controller vibration excitation signal is achieved, thereby improving the vibration testing effect.

Description

Technical Field

[0001] This application relates to the field of vibration testing technology, and more specifically to a controller vibration testing device and vibration testing method. Background Technology

[0002] Vibration testing is a common testing method used in the research, development, production and reliability verification of controllers, electronic modules and electromechanical equipment. Its purpose is to evaluate the structural strength, functional stability and reliability of the controller under vibration conditions.

[0003] Existing vibration testing equipment typically includes a vibration unit, a vibration platform, and a testing unit for mounting the controller. The vibration unit applies vibration excitation signals to the controller via the vibration platform to complete the corresponding vibration test.

[0004] However, existing vibration platforms mostly adopt a uniform thickness and homogeneous structure, which makes it easy for the vibration excitation signal to disperse and attenuate during propagation within the platform. This results in insufficient vibration energy transmitted to the test site, affecting the test results, and is particularly difficult to meet the test requirements for high local vibration intensity. Furthermore, the vibration platform has a simple structure, making it difficult to form a vibration field with different characteristics within the platform. This makes it impossible to enhance or adjust the vibration in the test area, limiting the application of vibration testing devices in multi-station or differentiated test scenarios. At the same time, the connection between the vibration unit and the vibration platform is mostly rigid or simple elastic, making it difficult to effectively modulate the vibration excitation signal according to the test requirements of different controllers, thus narrowing the applicability of the device. Summary of the Invention

[0005] This application provides a controller vibration testing device and a vibration testing method. By adjusting the transmission path and excitation position of the vibration excitation signal on the vibration platform and vibration module, differentiated modulation of the controller vibration excitation signal is achieved, thereby improving the vibration testing effect.

[0006] In a first aspect, this application provides a controller vibration testing device, comprising: a vibration unit configured to generate a vibration excitation signal; a vibration platform disposed on the vibration unit and configured to receive the vibration excitation signal and form a first vibration field; one or more vibration modules disposed on the vibration platform and configured to receive the vibration excitation signal transmitted by the vibration platform and form a second vibration field; and one or more testing units disposed on the one or more vibration modules and configured to transmit the received vibration excitation signal transmitted by the one or more vibration modules to a controller mounted on the testing units for vibration testing of the controller; one or more vibration guides are disposed on the lower end face of the vibration platform, the vibration guides and the testing units are located on opposite sides of the vibration platform, and the vibration guides are configured to form a shape in their extending direction. The vibration enhancement path is formed; the vibration guide includes a main vibration branch and a secondary vibration branch. The extension direction of the main vibration branch corresponds to the test section on the vertical projection plane and is configured to transmit the vibration excitation signal to the work position of the test section through the vibration enhancement path. The secondary vibration branches connect each main vibration branch and are configured to balance the vibration excitation signals between each main vibration branch. The vibration platform includes at least a first material structure area and a second material structure area. The first material structure area corresponds to the position of the test section in the vertical projection direction, so that the first material structure area is located on the path for transmitting the vibration excitation signal to the test section. The second material structure area is set around or adjacent to the first material structure area to form the remaining structural areas of the vibration platform. The first material structure area and the second material structure area differ in at least one material parameter, forming a non-uniformly distributed first vibration field inside the vibration platform.

[0007] In one alternative embodiment of the first aspect, the vibration testing device further includes a grating assembly disposed between the operator's workstation and the vibration platform, and configured to form a safety detection area between the operator's workstation and the vibration platform; wherein, when the safety detection area is blocked, the vibration unit stops vibrating.

[0008] In one alternative embodiment of the first aspect, the grating assembly includes at least: a first grating unit; and a second grating unit, which is disposed on opposite sides of the vibration platform, and the first grating unit and the second grating unit extend in a direction inclined to the vibration platform to form a safety detection area that at least blocks the area above the vibration platform between the first grating unit and the second grating unit.

[0009] In one alternative embodiment of the first aspect, the vibration testing apparatus further includes: an automatic HMI component configured to provide vibration test parameters for the vibrating part; and an industrial computer connected to the automatic HMI component and configured to control the vibrating part according to the vibration test parameters provided by the automatic HMI component.

[0010] In one alternative embodiment of the first aspect, the vibration testing apparatus further includes a detection component disposed on one side of the one or more test sections and configured to detect the controller status, the controller status being used to determine whether the controller has been accurately installed on the test section.

[0011] In one alternative of the first aspect, the detection component includes one or more photoelectric sensors, which are configured in a one-to-one correspondence with the one or more test units to independently detect the status of the controllers mounted on the corresponding one or more test units.

[0012] In one alternative embodiment of the first aspect, the test unit includes: a clamp arranged in an array on the surface of the vibration module, forming a mounting cavity for accommodating a controller; a support block disposed within the mounting cavity and configured to support the controller placed within the mounting cavity; wherein the height of the support block on the side closer to the operator is less than the height of the support blocks on the other sides, so as to limit the controller during installation and vibration testing.

[0013] Secondly, this application provides a vibration testing method using a vibration testing apparatus according to any one of the first aspects. The method includes: when it is determined from the detected controller status that the controller has been accurately installed on the testing unit, configuring vibration testing parameters of the vibration unit according to the vibration testing requirements of the controller; starting the vibration unit according to the vibration testing parameters; controlling the vibration unit to transmit the generated vibration excitation signal to a vibration platform installed on the vibration unit, and forming a first vibration field on the vibration platform; transmitting the vibration excitation signal to one or more vibration modules installed on the vibration platform according to the first vibration field, and forming a second vibration field on the one or more vibration modules; and transmitting the vibration excitation signal to one or more testing units installed on the one or more vibration modules according to the second vibration field, and controlling the testing units to transmit the vibration excitation signal to the controller installed thereon, thereby realizing vibration testing of the controller.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0015] The accompanying drawings, which are incorporated herein and form part of this specification, illustrate one or more embodiments of the present application and, together with the description, serve to explain the principles of the present application and to enable those skilled in the art to make and use the present application.

[0016] Figure 1 This is a schematic diagram of the structure of an exemplary vibration testing device according to some embodiments of this application;

[0017] Figure 2 This is a schematic diagram of an exemplary lower frame structure according to some embodiments of this application;

[0018] Figure 3 This is a schematic diagram illustrating the formation of an exemplary first vibration field according to some embodiments of this application;

[0019] Figure 4 This is a schematic diagram illustrating the formation of an exemplary second vibration field according to some embodiments of this application;

[0020] Figure 5 This is a schematic diagram of an exemplary upper frame structure according to some embodiments of this application;

[0021] Figure 6 This is a schematic diagram of the structure of an exemplary grating assembly according to some embodiments of this application;

[0022] Figure 7 This is a schematic diagram of the structure of an exemplary detection component according to some embodiments of this application;

[0023] Figure 8 This is a schematic diagram of the structure of an exemplary test unit according to some embodiments of this application;

[0024] Figure 9 This is a schematic diagram of an exemplary vibration guide according to some embodiments of this application;

[0025] Figure 10 This is a schematic diagram illustrating the formation of an exemplary thickness difference in a vibration platform according to some embodiments of this application;

[0026] Figure 11 This is a schematic diagram of an exemplary main vibration support and a secondary vibration support according to some embodiments of this application;

[0027] Figure 12 This is a schematic diagram of an exemplary first material structure region and a second material structure region according to some embodiments of this application;

[0028] Figure 13 This is a schematic diagram of the structure of an exemplary vibration exciter according to some embodiments of this application;

[0029] Figure 14 This is a schematic diagram of the structure of an exemplary connection module according to some embodiments of this application;

[0030] Figure 15 This is a schematic diagram of a vibration testing method according to some embodiments of this application;

[0031] Explanation of reference numerals in the attached drawings: Vibration testing device 10, upper frame structure 11, vibration platform 111, first vibration field 1111, vibration guide 1112, main vibration support 11121, secondary vibration guide 11122, first material structure area 1113, second material structure area 1114, vibration excitation element 1115, vibration module 112, second vibration field 1121, connecting module 1122, testing section 113, fixture 1131, support block 1132, control component 114, industrial computer 1141, automatic HMI component 1142, multimeter 1143 The components include: chip antenna 1144, power supply 1145, grating assembly 116, first grating unit 1161, second grating unit 1162, safety detection area 1163, touch assembly 117, first touch button 1171, second touch button 1172, detection assembly 118, input / output assembly 119, display 1191, keyboard and mouse 1192, lower frame structure 12, vibration unit 121, support platform 122, clamping component 123, casters 124, feet 125, mounting rail 13, mounting slot 131, bracket 14, and controller 20. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, the description of these embodiments is intended to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to provide a deeper understanding of embodiments of this application.

[0033] Figure 1 This is an example of a vibration testing device 10 provided in the embodiments of this application.

[0034] like Figure 1As shown, the vibration testing device 10 is used to perform vibration testing on a controller with a circuit board. Specifically, the main body of the vibration testing device 10 is divided into upper and lower parts, namely an upper frame structure 11 and a lower frame structure 12. Both the upper frame structure 11 and the lower frame structure 12 are equipped with several mounting rails 13, which are installed on the inner and outer sides of the upper frame structure 11 and the lower frame structure 12, respectively. The sides of the mounting rails 13 have mounting grooves 131 through which other components can be installed. The mounting rails 13 can be standard industrial aluminum profile rails or other rails capable of supporting electronic components to adapt to different configuration requirements.

[0035] The vibration testing device 10 includes a vibration unit 121, a vibration platform 111, one or more vibration modules 112, and one or more testing units 113.

[0036] The vibration unit 121 is located inside the lower frame structure 12. The vibration unit 121 is used to generate vibration excitation signals. It can be a vibration generating device commonly used in the prior art, such as an electric vibrator, an electromagnetic vibrator, a hydraulic vibrator, or a servo vibration table.

[0037] Figure 2 This is an example of a lower frame structure 12 provided in the embodiments of this application.

[0038] In this example, such as Figure 2 As shown, the bottom of the lower frame structure 12 has a support platform 122. This support platform 122 can be fixedly connected to the mounting slot 131 of the lower frame structure 12, or it can be placed independently within the lower frame structure 12. Several clamping members 123 are fixedly arranged around the support platform 122. The clamping members 123 are used to clamp the bottom perimeter of the vibrating part 121, fixing the vibrating part 121 to the support platform 122. The output end of the vibrating part 121 is connected to the vibration platform 111, used to input a vibration excitation signal to the vibration platform 111. It can be understood that the vibration excitation signal can be a single-axis or multi-axis vibration signal, and its vibration form includes, but is not limited to, sinusoidal vibration, random vibration, or impact vibration. Specific vibration parameters can be set according to the test requirements.

[0039] The bottom of the lower frame structure 12 is also equipped with casters 124 and feet 125. The casters 124 are used to drive the vibration testing device 10 to move, and the feet 125 are used to provide support for the vibration testing device 10. The casters 124 are located at the four corners of the bottom frame of the vibration testing device 10, and there are at least four casters 124. Each caster 124 can rotate and roll so that the operator can move the entire vibration testing device 10 to the required position. The casters 124 can also be equipped with a braking structure. When the vibration testing device 10 is moved to the required position and fixed, the braking structure can be used to lock the casters 124 to prevent the vibration testing device 10 from undergoing large displacement during vibration and to ensure that the vibration testing process continues smoothly.

[0040] The bottom of the lower frame structure 12 and the support platform is also equipped with feet 125 to meet the needs of different usage scenarios. The feet 125 can be used in conjunction with the casters 124, providing auxiliary support after the casters 124 are locked. The casters 124 and feet 125 can be bolted to the bottom frame of the vibration testing device 10, so that during vibration testing, the casters 124, as supporting components, can be securely connected to the lower frame structure 12 to prevent tilting during vibration testing.

[0041] In practical use, when the operator needs to move the vibration testing device 10, the casters 124 are adjusted to the movable state, allowing the vibration testing device 10 to roll freely. Once the device reaches the target position, the operator can lock the casters 124 and lower the foot cups 125 until they touch the ground, ensuring the vibration testing device 10 is stably positioned on the ground to meet vibration testing requirements. Simultaneously, the combination of the casters 124 and the foot cups 125 ensures that the vibration testing device 10 can flexibly switch between movable and fixed states.

[0042] The vibration platform 111, one or more vibration modules 112, and one or more test units 113 are all located within the upper frame structure 11.

[0043] Figure 3 This is an example of a first vibration field 1111 provided in the embodiments of this application.

[0044] Continue to refer to Figure 1 The vibration platform 111 is directly mounted on the vibration unit 121 and is not connected to the mounting rail 13 of the upper frame structure 11. The vibration platform 111 is used to receive the vibration excitation signal generated by the vibration unit 121, such as... Figure 3As shown, the vibration excitation signal forms a first vibration field 1111 around the vibration platform 111. The vibration platform 111 is an integral plate structure, fixed to the output end of the vibration unit 121, enabling the vibration excitation signal to be transmitted to the vibration platform 111. The vibration platform 111 is used to bear and disperse vibration energy, allowing the vibration excitation signal to propagate inside the vibration platform 111 and form a vibration environment for vibration testing on the surface of the vibration platform 111, providing the first vibration field 1111 for subsequent vibration testing. By setting the vibration platform 111, the problem of uneven vibration caused by the vibration excitation signal directly acting on the controller can be avoided, making the vibration testing process more stable.

[0045] Figure 4 This is an example of a second vibration field 1121 provided in the embodiments of this application.

[0046] like Figure 4 As shown, one or more vibration modules 112 are disposed on the vibration platform 111 to receive the vibration excitation signal transmitted by the vibration platform 111 and to form a second vibration field 1121 around the vibration module 112.

[0047] In this embodiment, there can be multiple vibration modules 112, and the multiple vibration modules 112 are distributed along the surface of the vibration platform 111. Each vibration module 112 is independently and fixedly installed on the vibration platform 111, so that the vibration excitation signal of the vibration platform 111 can be transmitted to the corresponding vibration module 112.

[0048] The vibration module 112 can adopt a plate-like structure, and its specific structure can be designed according to the test requirements to modulate the received vibration excitation signal, so that different vibration modules 112 form the same or different second vibration fields 1121. By setting up vibration modules 112, multiple vibration test environments can be constructed on the same vibration platform 111, so that the vibration excitation signal exhibits different vibration characteristics on different vibration modules 112, realizing multi-station vibration testing or differentiated vibration testing.

[0049] Continue to refer to Figure 2 One or more test units 113 are disposed on one or more vibration modules 112, and are used to transmit the vibration excitation signal received from the vibration module 112 to the controller installed on the test unit 113, so as to perform vibration testing on the controller.

[0050] In this embodiment, each vibration module 112 is provided with at least one test section 113, which is used to mount the controller or other test piece to be tested. The test section 113 may include a clamping structure or a fixing structure for securely mounting the controller on the corresponding vibration module 112, so that the controller remains tightly connected to the vibration module 112 during vibration testing.

[0051] When the vibration module 112 vibrates, the test unit 113 transmits the vibration excitation signal of the vibration module 112 to the controller installed on it, so that the controller performs vibration testing under the set vibration conditions, simulating the vibration environment in which the controller is in actual use.

[0052] The operation flow of the vibration testing device 10 is as follows: During the vibration test, the vibration unit 121 generates a vibration excitation signal and transmits it to the vibration platform 111, causing the vibration platform 111 to form a first vibration field 1111; the vibration platform 111 further transmits the vibration excitation signal to one or more vibration modules 112, causing each vibration module 112 to form a corresponding second vibration field 1121; the testing unit 113 transmits the vibration excitation signal of the vibration module 112 to the controller mounted on it, ultimately realizing the vibration test of the controller. This embodiment can realize synchronous vibration testing of multiple controllers under the action of the same vibration excitation source, and through the transmission structure between the vibration platform 111 and the vibration module 112, the vibration testing process is more stable and controllable.

[0053] Figure 5 This is an example of an upper frame structure 11 provided in the embodiments of this application.

[0054] Accordingly, such as Figure 5 As shown, in order to ensure the normal operation and data processing of the vibration testing device 10, the vibration testing device 10 also includes several control components 114, specifically an industrial control computer 1141, an automatic HMI component 1142, a multimeter 1143, a chip antenna 1144, and a power supply 1145. The control components 114 are partially housed within the upper frame structure 11.

[0055] The upper frame structure 11 is divided into at least three layers by using partitions, namely the upper layer, the middle layer and the lower layer. The partitions and the mounting rails 13 are fixedly connected. The vibration platform, vibration module and test piece are located in the lower layer, the industrial control computer 1141 and the chip antenna 1144 are located in the middle layer, and the multimeter 1143 and the power supply 1145 are located in the upper layer.

[0056] Specifically, the industrial control computer 1141, as the core control unit of the vibration testing device 10, is used to receive status signals from electronic components, uniformly control the start and stop of the vibration unit 121, the adjustment of vibration parameters, the execution of test programs, and record test data.

[0057] Chip antenna 1144 serves as the communication antenna for the remote control application chip, supporting wireless signal transmission and reception to achieve remote control or data interaction functions. Operators or monitoring systems can remotely start, stop, or monitor the vibration test process. In one specific embodiment, a USP410 antenna can be used as chip antenna 1144.

[0058] The 1143 multimeter can be connected to a test circuit for real-time monitoring of voltage, current, or other electrical parameters, and for fault diagnosis of the test circuit.

[0059] Power supply 1145 provides power to vibration testing device 10 to ensure the normal operation of vibration unit 121 and other electronic components. Power supply 1145 may include main power supply and backup battery to ensure stable power supply under different operating conditions.

[0060] The automatic HMI component 1142 is located outside the upper frame structure 11 and can be installed on the mounting rail 13 for easy visibility and manual operation by the operator. The automatic HMI component 1142 provides an operation interface, which is used to provide vibration test parameters of the vibration section, start or stop the test, display the test status and alarm information, and help the operator to perform convenient operation.

[0061] Figure 6 This is an example of a grating assembly 116 provided in an embodiment of this application.

[0062] like Figure 6 As shown, the vibration testing device 10 also includes a grating assembly 116, which is disposed between the operator's workstation and the vibration platform 111 to provide safety protection for the operator during vibration testing. The grating assembly 116 can be any type, such as a through-beam grating, a diffuse reflection grating, or a reflector grating. The grating assembly 116 is connected to the mounting rail 13 of the upper frame structure 11, forming a safety detection area 1163 along the distance between the operator's workstation and the vibration platform after installation.

[0063] In one specific embodiment, the grating assembly 116 includes at least a first grating unit 1161 and a second grating unit 1162, which are respectively disposed on opposite sides of the vibration platform 111 to form a safety detection area 1163 during vibration testing.

[0064] The first grating unit 1161 and the second grating unit 1162 extend along a direction inclined to the vibration platform, meaning the light beam forms a certain tilt angle with the vibration platform, allowing the plane formed by the light beam to cover the area above the vibration platform, thus constituting a safety detection zone. The tilt angle of the first grating unit 1161 and the second grating unit 1162 can be adjusted according to the operator's workstation height and the size of the vibration platform to ensure the light beam can detect when any part of the operator's body enters the area above the vibration platform. When the operator's hand or other body part enters the safety detection zone 1163, the grating assembly 116 will detect an obstruction signal and send it to the industrial control computer 1141. The industrial control computer 1141 will then stop the operation of the vibration unit 121 to ensure operator safety.

[0065] In one specific embodiment, the grating assembly 116 can be mounted on an adjustable bracket, which is then installed on the mounting rail 13, so that the grating assembly 116 can be adjusted along different tilt angles or heights, and can be adapted to vibration platforms of various sizes after adjustment.

[0066] In another embodiment, the grating assembly 116 extends directly along its mounting track 13 to form a continuous beam coverage in the direction perpendicular to the extension direction, enabling security monitoring of the entire frame structure 11.

[0067] In another embodiment, when there are openings on multiple sides of the upper frame structure 11, the grating assembly 116 is arranged in segments, that is, an independent grating assembly 116 is set at each opening, and each grating assembly 116 monitors a different area. When any area is blocked, the vibration unit 121 immediately stops working. This segmented arrangement is suitable for large vibration testing device 10.

[0068] In practical use, the tilt angle, beam spacing and coverage height of the grating assembly 116 can be adjusted according to the size of the vibration platform, the size of the controller and the operator's work position, so as to ensure that the grating assembly 116 can cover the area that the operator may enter without interfering with the placement of the controller.

[0069] During use, when the operator operates in front of the vibration platform, when the operator's body part or tool enters the safety detection area, the grating assembly 116 can detect the obstruction signal and send the signal to the industrial control computer 1141. The industrial control computer 1141 stops the operation of the vibration unit 121 according to the received obstruction signal, which can prevent the operator from being injured during the vibration test.

[0070] Figure 5 An example of a touch component 117 is also provided.

[0071] refer to Figure 5 The touch control component 117 of the vibration testing device 10 is located on the side closest to the operator and is mounted on the mounting rail 13 of the upper frame structure 11. The mounting rail 13 is height-adjustable, allowing the touch control component 117 to be positioned at different heights near the operator for operation. The touch control component 117 receives start / stop commands from the operator. The operator can send start or pause commands via the touch control component 117 to control the vibration state of the vibration unit 121.

[0072] Understandably, the height, spacing, and position of touch buttons can be adjusted according to the operator's hand reach and operating habits.

[0073] In actual use, when the operator presses the start command of the touch component 117, the vibration unit 121 begins to perform vibration testing according to preset parameters; when the operator presses the pause command, the vibration unit 121 stops working to ensure the safety of the operator when adjusting the controller or maintaining the equipment.

[0074] In another embodiment, the touch component 117 includes a first touch button 1171 and a second touch button 1172, each positioned for independent operation by the operator. The touch component 117 is configured such that the vibration unit 121 only initiates the vibration test when both the first touch button 1171 and the second touch button 1172 are triggered simultaneously. This activation method effectively prevents the operator from initiating the vibration test with one hand or through accidental touch, reducing operational risks.

[0075] In actual operation, the operator needs to press both touch buttons simultaneously. The industrial control computer 1141 will start the vibration unit 121 only after it detects that the first touch button 1171 and the second touch button 1172 are triggered at the same time. If either the first touch button 1171 or the second touch button 1172 is not pressed, the vibration unit 121 will remain in the inactive state.

[0076] In a further embodiment, the touch component 117 and the grating component 116 work together. That is, before the vibration testing device 10 is started, the first touch button 1171 and the second touch button 1172 must be pressed at the same time and the safety detection area of ​​the grating component 116 must not be blocked. When the above two conditions are met, the vibration unit 121 can be started. If either condition is not met, the vibration unit 121 remains in the inactive state, forming a multi-layer safety protection.

[0077] Figure 7 This is an example of a detection component 118 provided in an embodiment of this application.

[0078] like Figure 7 As shown, the vibration testing device 10 also includes a detection component 118, which is used to detect whether a controller is installed on the testing section 113. The detection component 118 is disposed on one side of the testing section 113 and can be a photoelectric sensor, such as a through-beam, diffuse reflection, or reflector type photoelectric sensor, to sense the presence of a controller on the testing section 113.

[0079] In one embodiment, the detection component 118 includes only a single photoelectric sensor for detecting whether a controller is installed on a single test section 113. When the photoelectric sensor detects a controller on the test section 113, a signal is sent to the industrial control computer 1141, which allows the vibration section 121 to perform vibration testing according to preset parameters; if no controller is detected, the vibration section 121 remains in an inactive state, avoiding the phenomenon of no-load testing.

[0080] In a further embodiment, the detection component 118 includes multiple photoelectric sensors, and each photoelectric sensor is configured in a one-to-one correspondence with a multiple test section 113. Each test section 113 is equipped with an independent photoelectric sensor for detecting the installation status (whether the controller is installed) on the test section 113. By setting this one-to-one correspondence, independent detection at multiple stations can be achieved, enabling the vibration testing device 10 to individually confirm the controller installation status at each station when testing at multiple stations simultaneously, thereby improving detection efficiency.

[0081] In actual use, when the operator places the controller on the test section 113, the corresponding photoelectric sensor detects the presence of the controller, the industrial control computer 1141 records the installation status and allows the vibration section 121 to be started; when the controller is removed or not placed correctly, the corresponding photoelectric sensor sends a signal to the industrial control computer 1141, and the vibration section 121 stops vibrating or is prohibited from starting, so as to avoid vibrating the unused test section 113 and prevent equipment damage or false testing.

[0082] Furthermore, in this embodiment, the photoelectric sensor can be fixed to the side of the test unit 113 via a bracket or mounting rail 13 to accommodate controllers of different sizes and shapes. It is understood that the sensitivity, detection distance, and response speed of the photoelectric sensor can be adjusted according to the controller size, test environment, and vibration amplitude.

[0083] Figure 8 This is an example of a test unit 113 provided in an embodiment of this application.

[0084] like Figure 8 As shown, the testing section 113 of the vibration testing device 10 includes a clamp 1131 and a support block 1132. The clamps 1131 are arranged in an array on the surface of the vibration module 112, with multiple clamps 1131 spaced apart from each other, and a mounting cavity for accommodating the controller is formed between each clamp 1131.

[0085] The support block 1132 is disposed inside the mounting cavity to support the controller placed inside the mounting cavity. The support block 1132 contacts the bottom and sides of the controller, so that the controller remains firmly installed during vibration testing and can receive vibration excitation signals transmitted by the vibration module 112.

[0086] In this embodiment, the height of the support blocks 1132 varies along the circumference of the mounting cavity. The height of the support block 1132 on the side closer to the operator is less than the height of the support blocks 1132 on the other sides. This height difference design allows the controller to be smoothly inserted into the mounting cavity along the side closer to the operator, while its movement is limited by the restraining effect of the taller support block 1132 on the side farther from the operator.

[0087] During vibration testing, the controller is prone to displacement due to the direction of vibration and inertia. The higher support block 1132 can limit the controller and prevent it from sliding or falling out of the fixture 1131 within the mounting cavity. At the same time, the support block 1132 on the side closer to the operator is lower, making it easier for the operator to quickly place and remove the controller.

[0088] In other embodiments, the height difference of the support blocks 1132 can be adjusted according to the size, weight and vibration intensity of the controller. The number and distribution of the support blocks 1132 can also be set according to actual needs. As long as the support and limiting functions of the controller can be achieved, they are all within the protection scope of this invention.

[0089] Figure 5 An example of an input / output component 119 is also provided.

[0090] like Figure 5 As shown, the input / output component 119 includes a display 1191 and a keyboard and mouse 1192. The input / output component 119 is used to input and output various data during the vibration test. The keyboard and mouse 1192 can be an integrated keyboard and mouse unit or separate keyboard and mouse units. The display 1191 and keyboard and mouse 1192 are mounted on the mounting rail 13 via a bracket 14 for easy observation and operation by the operator. The bracket 14 can be adjustable and fixedly connected to the mounting rail 13, allowing the display 1191 and keyboard and mouse 1192 to be adjusted according to the operator's height and standing position.

[0091] The display 1191 is used to display vibration test parameters, test status, real-time vibration data, and test results; the keyboard and mouse 1192 are used to input test parameters, operation commands, and control the test process. The display 1191 and the keyboard and mouse 1192 can be electrically connected to the control unit 114 to realize data interaction and transmission of control commands.

[0092] In one embodiment, the operator can set parameters such as vibration frequency, amplitude, and test duration on the display 1191 interface using a keyboard and mouse 1192, and start or pause the vibration test using the touch component 117. During the vibration test, the display 1191 shows the test progress in real time, making it convenient for the operator to monitor the test process.

[0093] In other embodiments, the display 1191 and keyboard / mouse 1192 can also be linked with the grating assembly 116 and the detection assembly 118. When an abnormality is detected, alarm information is output on the display 1191 to assist the operator in taking appropriate measures. With the above settings, the display 1191 and keyboard / mouse 1192, as the data input / output assembly 119 of the vibration testing device, can work in conjunction with other electronic components, making the operation of the vibration testing device 10 more convenient.

[0094] Figure 9 This is an example of a vibration guide 1112 provided in the embodiments of this application.

[0095] One or more vibration guides 1112 are provided on the lower end face of the vibration platform 111. The one or more vibration guides 1112 extend along a preset direction to form structural regions of different thicknesses on the vibration platform 111, constructing vibration reinforcement paths. It can be understood that vibration waves preferentially propagate along paths with high stiffness in the structure, and thicker regions can form preferential propagation paths, making vibration energy more concentrated. The vibration guides 1112 and the test section 113, which is located above the vibration platform 111, are located on opposite sides of the vibration platform 111, that is, the test section 113 is located above the vibration platform 111, and the vibration guides 1112 are located below the vibration platform 111, so that the vibration platform 111 forms a vertically symmetrical vibration transmission structure.

[0096] The vibration guide 1112 can be integrally formed with the vibration platform 111, or it can be spliced ​​with the vibration platform 111 as a whole.

[0097] The vibration guide 1112 can be a rib-like structure, that is, a vibration guide rib. It can be understood that vibration waves preferentially propagate along the path with high stiffness in the structure. The vibration guide rib can form a preferential propagation path, making the vibration energy more concentrated.

[0098] The vibration guide 1112 can be made of metal or high-rigidity composite material to ensure that it has high structural stiffness and low energy attenuation during vibration.

[0099] In one specific implementation, such as Figure 10 As shown, the vibration platform 111 is an integral flat plate structure with a consistent body thickness. The vibration guide 1112 is disposed on the lower end face of the vibration platform 111 and located below the test section 113, forming at least two structural regions with different thicknesses on the vibration platform 111. Region A is the region where the vibration guide 1112 is disposed, and its thickness is the sum of the thickness of the vibration platform 111 body and the thickness of the vibration guide 1112; Region B is the region where the vibration guide 1112 is not disposed, and its thickness is the same as the thickness of the vibration platform 111 body.

[0100] When the vibration excitation signal generated by the vibration unit 121 is transmitted to the vibration platform 111 via the vibration guide 1112, region A, due to the superimposed structure of the vibration guide 1112, forms a high-stiffness vibration reinforcement path in the vibration propagation direction. This concentrates the vibration energy along the extension direction of the vibration guide 1112 and further transmits it to the corresponding vibration module 112 and test unit 113 above it, thus making the vibration energy more concentrated. In contrast, region B, without the superimposed structure of the vibration guide 1112, has its vibration excitation signal mainly diffused through the vibration platform 111 itself, resulting in a relatively dispersed vibration energy distribution. Through the above arrangement, the test unit 113 located at the corresponding position in region A can obtain a more stable and concentrated vibration excitation signal, thereby improving the vibration testing effect on the controller.

[0101] During vibration testing, the vibration excitation signal generated by the vibration unit 121 is transmitted upward from the vibration platform 111 to the vibration module 112 and the testing unit 113. Simultaneously, the vibration guide 1112 provides a vibration reinforcement path for the vibration platform 111 along its extension direction. Through the arrangement of the vibration guide 1112, when the vibration platform 111 is subjected to vibration excitation, its vibration energy is not only transmitted upward but also forms a superposition effect along the extension direction of the vibration guide 1112, enhancing the overall vibration amplitude of the vibration platform 111.

[0102] Furthermore, the vibration guide 1112 and the test section 113 are located on opposite sides of the vibration platform 111. The vibration guide 1112 can play the role of vibration support during the vibration process, so that the vibration platform 111 forms a more stable first vibration field 1111, and makes the second vibration field 1121 formed by the vibration module 112 more concentrated, thereby improving the vibration excitation effect on the controller on the test section 113.

[0103] With the above-mentioned vibration guide 1112, the vibration testing device 10 in this embodiment can improve the vibration transmission efficiency without increasing the output power of the vibration unit 121, and is suitable for performing multi-frequency vibration tests on the controller.

[0104] This embodiment further explains the structure of the vibration guide 1112. For example... Figure 11 As shown, the vibration guide 1112 includes multiple main vibration branches 11121 and at least one sub-vibration guide branch 11122, and both the main vibration branches 11121 and the sub-vibration guide branches 11122 are disposed on the lower end face of the vibration platform 111.

[0105] The main vibration support 11121 is arranged vertically, and its extension direction on the vertical projection plane corresponds to the test section 113 arranged above the vibration platform 111, so that each main vibration support 11121 corresponds to at least one test section 113 in spatial position. One end of the main vibration support 11121 is fixedly connected to the lower end face of the vibration platform 111, and the other end is used to receive the vibration excitation signal from the vibration section 121, forming a continuous vibration transmission path between the vibration platform 111 and the corresponding test section 113. By setting the main vibration support 11121, the vibration excitation signal can be transmitted to the workstation where the corresponding test section 113 is located along the extension direction of the main vibration support 11121, reducing the lateral diffusion of vibration energy inside the vibration platform 111.

[0106] Sub-guided vibration supports 11122 are disposed between adjacent main vibration supports 11121 and are fixedly connected to multiple main vibration supports 11121. The extension direction of the sub-guided vibration supports 11122 is set along the horizontal direction of the vibration platform 111, and is used to form a connection structure between each main vibration support 11121. It should be noted that the vertical and horizontal directions mentioned above are based on the directions shown in the figure.

[0107] When the vibration excitation signal is transmitted by different dominant vibration supports 11121, the vibration response on each dominant vibration support 11121 may differ due to manufacturing errors and differences in installation position. By setting up sub-guided vibration supports 11122, vibration balance is achieved among the dominant vibration supports 11121, thus coordinating the vibration excitation signals on different dominant vibration supports 11121 and preventing the vibration of a single dominant vibration support 11121 from being too strong or too weak. Through the setting of sub-guided vibration supports 11122, the sub-guided vibration supports 11122 play a role in vibration equalization, enabling multiple test units 113 to obtain more similar vibration excitation signals and improving vibration consistency during simultaneous testing at multiple stations.

[0108] This embodiment further improves the vibration platform 111 from the perspective of material structure, so as to form a non-uniform first vibration field 1111 inside the vibration platform 111.

[0109] like Figure 12 As shown, the vibration platform 111 includes at least a first material structure region 1113 and a second material structure region 1114. The first material structure region 1113 and the second material structure region 1114 are formed inside the vibration platform 111 by means of integral molding, embedding, or composite. The first material structure region 1113 corresponds to the position of the test section 113 in the vertical projection direction, placing it on the main path for the vibration excitation signal to be transmitted to the test section 113. The second material structure region 1114 is disposed around or adjacent to the first material structure region 1113, constituting the remaining structural areas of the vibration platform 111.

[0110] The first material structure region 1113 and the second material structure region 1114 differ in at least one material parameter. These material parameters include, but are not limited to, material density, elastic modulus, structural damping coefficient, acoustic impedance, internal loss factor, or the number of composite material layers. For example, the first material structure region 1113 may use a material with a higher density or elastic modulus, while the second material structure region 1114 may use a material with a lower density or higher damping performance; alternatively, the first material structure region 1113 and the second material structure region 1114 may use the same substrate but achieve different material parameters through different proportions or different layer structures.

[0111] The difference in material parameters between the first material structure region 1113 and the second material structure region 1114 results in differences in the propagation speed, energy attenuation, and response frequency of the vibration excitation signal when it is transmitted from the vibration part 121 to the vibration platform 111. This leads to the formation of a non-uniformly distributed first vibration field 1111 inside the vibration platform 111.

[0112] The first material structure region 1113 is located below the test section 113, and its material parameters are conducive to concentrating vibration energy, enabling the vibration excitation signal to have a higher energy concentration within the first material structure region 1113. By setting up the first material structure region 1113 and the second material structure region 1114, the vibration transmission path and vibration energy distribution can be improved without changing the external shape of the vibration platform 111, thereby improving the quality of the vibration excitation signal transmitted to the test section 113 and enhancing the vibration testing effect on the controller.

[0113] Based on the above embodiments, this embodiment provides a detailed description of the material selection for the first material structure region 1113 and the second material structure region 1114, in order to further illustrate the formation method of the non-uniform first vibration field 1111.

[0114] In this embodiment, the first material structure region 1113 is made of a high-elastic-modulus metallic material, such as steel or a high-modulus aluminum alloy, while the second material structure region 1114 is made of a material with relatively low elastic modulus or high damping performance, such as ordinary aluminum alloy, magnesium alloy, or engineering plastic. Specifically, the first material structure region 1113 may be made of a metallic material with an elastic modulus greater than 180 GPa to form a high-stiffness structural region, while the second material structure region 1114 may be made of a material with an elastic modulus less than that of the first material structure region 1113.

[0115] The combination of the first material structure region 1113 and the second material structure region 1114 includes: using a partitioned processing method to form different material structures in different regions of the vibration platform 111; embedding the first material structure region 1113 in the body of the vibration platform 111 so that it corresponds to the position of the test part 113 in the vertical direction; and using a lamination method to form a high modulus layer in the first material structure region 1113 and a low modulus layer in the second material structure region 1114.

[0116] The first material structure region 1113 uses a high elastic modulus material, which results in less energy loss of the vibration excitation signal and can more effectively transmit the vibration energy to the corresponding test section 113, allowing the test section 113 to obtain a more concentrated vibration excitation signal. In contrast, the second material structure region 1114, due to its higher material damping performance or lower elastic modulus, has a certain attenuation effect on the vibration energy during vibration propagation, which can suppress the scattering of vibration within the vibration platform 111 and reduce the vibration between adjacent test sections 113. By combining different materials, a vibration energy concentration area is formed locally (at the position corresponding to the test section 113) within the vibration platform 111, creating a non-uniform first vibration field 1111 inside the vibration platform 111, thereby improving the vibration excitation effect of the vibration testing device 10 on different controllers.

[0117] Figure 13 This is an example of a vibration guiding excitation element provided in the embodiments of this application.

[0118] The vibration excitation component 1115 transmits the vibration excitation signal output by the vibration unit 121, forming multiple vibration excitation points on the vibration platform 111.

[0119] The vibration testing device 10 also includes one or more vibration exciters 1115. The vibration exciter 1115 is disposed between the vibration part 121 and the vibration platform 111, with its excitation input end connected to the vibration part 121 and its excitation output end connected to the vibration platform 111.

[0120] The vibration excitation element 1115 includes multiple structural members and their connecting nodes. These structural members are fixedly connected to form a stable frame structure. The excitation input end includes at least one excitation input node, and the excitation output end includes multiple excitation output nodes. The excitation input node is connected to the vibration unit 121 to receive the vibration excitation signal generated by the vibration unit 121. The multiple excitation output nodes are respectively connected to different positions on the vibration platform 111, preferably corresponding to the position of the testing unit 113, to distribute and transmit the vibration excitation signal to the vibration platform 111.

[0121] In one optional embodiment, the vibration exciter 1115 includes multiple excitation input nodes, which are respectively connected to different output positions of the vibration unit 121. Simultaneously, the vibration exciter 1115 also includes multiple excitation output nodes, which are correspondingly connected to different areas of the vibration platform 111. This multi-input, multi-output configuration is suitable for large-scale vibration testing equipment 10. The multi-input configuration allows the vibration excitation signal to be concentrated within the vibration exciter 1115, while the multi-output configuration allows the vibration excitation signal to be distributed to multiple positions on the vibration platform 111 corresponding to the testing unit 113.

[0122] The internal structural members of the vibration excitation component 1115 guide and divert the vibration excitation signal. When the vibration excitation signal enters the vibration excitation component 1115 from the excitation input end, the vibration energy propagates along each member and is concentrated and released at the excitation input end, forming several vibration excitation points on the vibration platform 111. Compared to directly applying the vibration excitation signal from the vibration unit 121 to the vibration platform 111, the multiple vibration excitation points formed by the vibration excitation component 1115 enable the vibration excitation signal to be input into the vibration platform 111 more concentratedly and reduce the dissipation of vibration energy in the initial stage.

[0123] Figure 14 This is an example of a connection module 1122 provided in an embodiment of this application.

[0124] The vibration testing device 10 also includes one or more connection modules 1122, which are disposed between the vibration platform 111 and the vibration module 112. One end of the connection module 1122 is fixedly connected to the vibration platform 111, and the other end is fixedly connected to the corresponding vibration module 112, so that the vibration excitation signal passes through the connection module 1122 during the transmission from the vibration platform 111 to the vibration module 112. Through the configuration of the connection module 1122, it acts as an intermediate unit in the vibration transmission path, modulating the vibration excitation signal so that the vibration excitation signal received by the vibration module 112 is different from the vibration excitation signal transmitted by the vibration platform 111. It is understood that this modulation includes, but is not limited to, adjusting the amplitude of the vibration excitation signal, enhancing or attenuating the frequency, or delaying the vibration response rate, so that the vibration module 112 forms a second vibration field 1121 that meets the testing requirements.

[0125] This embodiment describes the specific structure of the connection module 1122. The connection module 1122 includes one or more of the following: elastic module, damping module, and composite module. Different types of connection modules 1122 can be used individually or in combination.

[0126] Specifically, the elastic module can be made of an elastomer, a spring structure, or a metal or non-metal material with elastic deformation capability. When the vibration excitation signal is transmitted through the elastic module, the elastic module generates an elastic response to the vibration excitation signal, changing the vibration amplitude or vibration frequency of the vibration module 112, so that the vibration excitation signal is more suitable for the current test requirements. The damping module can be made of rubber material, damping coating, or damping pad. The damping module absorbs and attenuates vibration energy during vibration transmission, which is used to suppress excessive vibration or high-frequency vibration components and reduce mutual interference between vibration modules 112. The composite module is a structural module that has both elastic and damping characteristics. It can be formed by combining elastic and damping materials or by using a multi-layer composite structure. While transmitting the vibration excitation signal, the composite module comprehensively modulates the vibration signal, so that the vibration module 112 obtains a smoother and more stable vibration effect.

[0127] This embodiment describes the structural relationship between the vibration guide 1112 and the vibration excitation element 1115.

[0128] Specifically, the excitation output end of the vibration exciter 1115 forms multiple vibration excitation points on the vibration platform 111. Each vibration excitation point corresponds to the position of the vibration guide 1112 in the vertical projection direction, so that the vibration excitation signal is preferentially input to the vibration guide 1112 and transmitted when it enters the vibration platform 111. Through the above structural arrangement, the vibration excitation signal generated by the vibration exciter 1115 is guided into the vibration reinforcement path formed by the vibration guide 1112 in the initial input stage, reducing the scattering of the vibration excitation signal inside the vibration platform 111 and improving the transmission efficiency of vibration energy to the testing unit 113.

[0129] This embodiment describes the structural relationship between the vibration excitation element 1115 and the testing unit 113.

[0130] Specifically, the vibration excitation point formed by the vibration excitation element 1115 on the vibration platform 111 corresponds to the location of the test unit 113 in the vertical projection direction, so that the vibration excitation signal is transmitted to the controller in sequence along the vertical direction through the vibration platform 111, the vibration module 112, and the test unit 113. Through the above correspondence, the vibration excitation signal can act on the controller along the shortest transmission path, reducing the lateral attenuation generated during vibration transmission and increasing the amplitude of the vibration excitation received by the controller.

[0131] Based on the above embodiments, this embodiment further explains the overall correspondence between the vibration guide 1112, the vibration excitation element 1115, and the testing unit 113.

[0132] In this embodiment, the vibration testing device 10 includes a vibration unit 121, a vibration platform 111, a vibration excitation element 1115, a vibration guide element 1112, a vibration module 112, and a testing unit 113. The vibration unit 121 generates vibration excitation signals. The vibration excitation element 1115 is disposed between the vibration unit 121 and the vibration platform 111. The vibration guide element 1112 is disposed on the lower end face of the vibration platform 111. The vibration module 112 and the testing unit 113 are sequentially disposed above the vibration platform 111.

[0133] Specifically, the excitation output end of the vibration exciter 1115 forms multiple vibration excitation points on the vibration platform 111. Each vibration excitation point is correspondingly arranged on the vibration guide 1112 in the vertical projection direction. In particular, the main vibration support 11121 of the vibration guide 1112 extends through the test section 113 arranged on the vibration module 112 in the vertical projection plane. Through the above structural relationship, a vibration transmission channel is formed between the vibration section 121, the vibration exciter 1115, the vibration guide 1112, the vibration platform 111, the vibration module 112, and the test section 113, so that the vibration excitation signal can be transmitted to the controller step by step along the channel, thereby improving the concentration of vibration excitation.

[0134] Figure 15 This is an example of a vibration testing method provided in the embodiments of this application.

[0135] This embodiment provides a vibration testing method for a controller, using the vibration testing device 10 described in the above embodiment. The method includes the following steps:

[0136] S11: The controller 20 to be tested is installed on the test unit 113. The controller 20 can be a controller with a circuit board. The controller 20 is fixed on the support block 1132 by the clamp 1131. At the same time, the detection component 118 detects the controller status in real time and determines whether the controller has been accurately installed on the test unit according to the controller status. If so, the vibration test parameters of the vibration unit 121 are configured according to the vibration test requirements of the controller. The vibration test parameters include, but are not limited to, vibration frequency, vibration amplitude, vibration direction and test duration. After the parameter configuration is completed, the vibration unit 121 is started. The vibration unit 121 generates a vibration excitation signal according to the vibration test parameters and installs the vibration excitation signal on the vibration platform on the vibration unit, forming a first vibration field on the vibration platform.

[0137] S12: The vibration excitation signal is transmitted to one or more vibration modules installed on the vibration platform according to the first vibration field, and a second vibration field is formed on the one or more vibration modules.

[0138] S13: Based on the second vibration field, the vibration excitation signal is transmitted to one or more test units installed on one or more vibration modules, and the test units are controlled to transmit the vibration excitation signal to the controller installed thereon, so as to realize the vibration test of the controller.

[0139] Specifically, a repetitive vibration test method can be used. First, the controller 20 to be tested is installed on the test unit, and the controller 20 is secured by the clamp 1131 and the support block 1132 to ensure that the controller 20 will not loosen or detach during the vibration test. After confirming that the controller 20 is correctly installed by the detection component 118, the vibration test preparation state can be entered.

[0140] Next, the initial vibration test parameters of the vibration unit 121 are configured according to the test requirements of the controller 20, including vibration frequency, amplitude, and test duration. The vibration unit 121 is started, so that the vibration platform 111, vibration module 112, and test unit 113 apply initial vibration excitation signals to the controller 20. In the initial vibration test stage, the vibration parameters are set to low frequency and low amplitude to verify the stability of the controller 20 within the fixture 1131.

[0141] After completing the initial vibration test and confirming that the controller 20 remains stable, the vibration frequency and / or amplitude are gradually increased to conduct multiple repeated vibration tests. Between each repeated vibration test, the status of the controller 20 can be checked, including but not limited to the controller 20's appearance, fastening condition, and electrical performance parameters. By progressively increasing the vibration intensity, different operating conditions encountered by the controller 20 during actual use can be simulated.

[0142] During vibration testing, if the detection component 118 detects displacement of the controller 20, or the grating component 116 detects that the safety detection area 1163 is blocked, the vibration unit 121 stops the vibration test to ensure the safety of the vibration testing device 10, the controller 20, and the operator.

[0143] In an alternative embodiment, this embodiment further includes the selection and installation steps of the connection module 1122 before activating the vibration unit 121.

[0144] Specifically, after the controller 20 is installed in the test unit 113, that is, after step S11, step S111 is added: select the corresponding type of connection module 1122 according to the test requirements of the controller 20, and install the connection module 1122 between the vibration module 112 and the vibration platform 111.

[0145] The connection module 1122 can be one or more of an elastic module, a damping module, or a composite module. When the controller 20 requires strong vibration excitation, an elastic module can be selected to enhance the vibration response; when the controller 20 is more sensitive to vibration, a damping module can be selected to suppress excessively strong or high-frequency vibration; when both vibration intensity and stability are required, a composite module can be selected to comprehensively modulate the vibration excitation signal.

[0146] After the installation of the connection module 1122 is completed, the vibration test parameters of the vibration unit 121 are configured and the vibration unit 121 is started. The vibration excitation signal is modulated by the connection module 1122 during the process of being transmitted to the controller 20, so as to obtain the vibration test effect that meets the test requirements.

[0147] Using the above method, differentiated vibration tests on different controllers 20 can be achieved without changing the output conditions of the vibration unit 121.

[0148] Based on the above implementation method, this embodiment further configures the vibration testing method by combining the structural features of the vibration excitation element 1115, the vibration guide element 1112 and the material structure area.

[0149] Specifically, before conducting the vibration test, S21: based on the type of controller 20 and the test target, determine the position of the test section 113 corresponding to the controller 20, and select the vibration excitation point, the vibration guide 1112 and the first material structure area 1113 that correspond to the test section 113 in the vertical direction.

[0150] S22: Configure the vibration test parameters of the vibration unit 121 to make the vibration excitation signal preferentially transmitted to the controller 20 along the preset vibration transmission path.

[0151] S23: After completing the above structure and parameter matching, start the vibration unit 121 so that the vibration excitation signal is transmitted to the controller 20 in sequence through the vibration excitation component 1115, the vibration platform 111, the vibration guide component 1112, the vibration module 112 and the test unit 113, thereby applying targeted vibration excitation to the controller 20.

[0152] During vibration testing, the vibration test parameters of the vibration unit 121 can be adjusted or the connection module 1122 can be replaced as needed to achieve vibration testing under multiple operating conditions.

[0153] The above method can improve the schedulability of vibration excitation received by the controller 20 and improve the vibration test effect, and is suitable for vibration testing of controller-type electronic products.

[0154] Other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and this application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A controller vibration testing device, characterized in that, include: A vibrating element, configured to generate a vibration excitation signal; A vibration platform is disposed on the vibration unit and configured to receive the vibration excitation signal and form a first vibration field; One or more vibration modules are disposed on the vibration platform and configured to receive vibration excitation signals transmitted by the vibration platform and form a second vibration field; and, One or more test units are disposed on the one or more vibration modules and configured to transmit vibration excitation signals received from the one or more vibration modules to a controller mounted on the test units, so as to perform vibration testing on the controller; One or more vibration guides are provided on the lower end face of the vibration platform. The vibration guides and the test section are located on opposite sides of the vibration platform. The vibration guides are configured to form a vibration reinforcement path in their extension direction. The vibration guides include a main vibration branch and a secondary vibration branch. The extension direction of the main vibration branch passes through the test section on the vertical projection plane and is configured to transmit the vibration excitation signal to the workstation where the test section is located through the vibration reinforcement path. The secondary vibration branches connect each main vibration branch and are configured to balance the vibration excitation signals between each main vibration branch. The vibration platform includes at least a first material structure area and a second material structure area. The first material structure area corresponds to the position of the test section in the vertical projection direction, so that the first material structure area is located on the path through which the vibration excitation signal is transmitted to the test section. The second material structure area is disposed around or adjacent to the first material structure area to form the remaining structural areas of the vibration platform. The first material structure area and the second material structure area differ in at least one material parameter, forming a non-uniformly distributed first vibration field inside the vibration platform.

2. The vibration testing device according to claim 1, characterized in that, The vibration testing device also includes a grating assembly, which is disposed between the operator's workstation and the vibration platform and configured to form a safe detection area between the operator's workstation and the vibration platform. When the safety detection area is blocked, the vibrating part stops vibrating.

3. The vibration testing device according to claim 2, characterized in that, The grating assembly includes at least: First grating unit; The second grating unit is disposed on opposite sides of the vibration platform, and the first grating unit and the second grating unit extend in a direction inclined to the vibration platform to form a safety detection area that at least blocks the area above the vibration platform between the first grating unit and the second grating unit.

4. The vibration testing device according to claim 1, characterized in that, The vibration testing device also includes: An automated HMI component is configured to provide vibration test parameters for the vibrating part; An industrial control computer is connected to the automatic HMI component and configured to control the vibrating part according to the vibration test parameters provided by the automatic HMI component.

5. The vibration testing device according to claim 1, characterized in that, The vibration testing device further includes a detection component, which is disposed on one side of the one or more testing units and configured to detect the controller status. The controller status is used to determine whether the controller has been accurately installed on the testing unit.

6. The vibration testing device according to claim 5, characterized in that, The detection component includes one or more photoelectric sensors, which are configured in a one-to-one correspondence with the one or more test units to independently detect the status of the controllers installed on the corresponding one or more test units.

7. The vibration testing device according to claim 1, characterized in that, The testing unit includes: The clamps are arranged in an array on the surface of the vibration module and form a mounting cavity for accommodating the controller. A support block, disposed within the mounting cavity and configured to support a controller placed within the mounting cavity; The height of the support block on the side closer to the operator is smaller than the height of the support blocks on the other sides, so as to limit the controller during installation and vibration testing.

8. A method for testing controller vibration, using the vibration testing apparatus according to any one of claims 1-7, characterized in that, The method includes: When it is determined from the detected controller status that the controller has been accurately installed on the test unit, the vibration test parameters of the vibration unit are configured according to the vibration test requirements of the controller. The vibration unit is started according to the vibration test parameters, and the vibration unit is controlled to transmit the generated vibration excitation signal to the vibration platform installed on the vibration unit, and a first vibration field is formed on the vibration platform. The vibration excitation signal is transmitted to one or more vibration modules mounted on the vibration platform according to the first vibration field, and a second vibration field is formed on the one or more vibration modules; and, The vibration excitation signal is transmitted to one or more test units installed on the one or more vibration modules according to the second vibration field, and the test units are controlled to transmit the vibration excitation signal to the controller installed thereon, so as to realize the vibration test of the controller.

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