A rigidity testing device

Abstract

The embodiment of the application provides a rigidity testing device, which comprises a support frame, a working box, a force applying mechanism and a distance measuring assembly. The working box is fixed to the support frame, the upper end of the force applying mechanism is connected with the working box, the size of the force applying mechanism in the up-down direction is variable, the force applying mechanism is used for applying force to a to-be-tested sheet metal part, and the distance measuring assembly is fixed below the working box and is used for measuring the distance between the to-be-tested sheet metal part and the distance measuring assembly. According to the rigidity testing device, the measurement method and the operation method of the rigidity testing device are simple, the rigidity testing device can replace manual testing of the rigidity of a single sheet metal part such as a hood outer plate, and the rigidity of the to-be-tested sheet metal part can be more accurately and efficiently tested.

Description

Technical Field

[0001] This application relates to the field of vehicle testing technology, and more particularly to a rigidity testing device. Background Technology

[0002] In related technologies, rigidity tests are required for components such as the engine hood panel of a vehicle to examine their ability to resist deformation under pressure. Currently, the conventional practice for rigidity testing of individual sheet metal parts such as the engine hood panel involves workers using oilstones for quality inspection. The rigidity of the part is determined by observing the deformation and springback of the stressed area. However, this method lacks quantitative data that effectively reflects the rigidity of individual sheet metal parts such as the engine hood panel, and the accuracy of the test is also affected by variations and unevenness in the pressure applied manually. Utility Model Content

[0003] This application provides a rigidity testing device aimed at improving the accuracy of rigidity testing for single sheet metal parts.

[0004] A rigidity testing device according to an embodiment of this application includes: a support frame, a working box, a force application mechanism, and a distance measuring component. The working box is fixed on the support frame, the upper end of the force application mechanism is connected to the working box, the force application mechanism has a variable dimension in the vertical direction, and is used to apply force to the sheet metal part to be tested. The distance measuring component is fixed below the working box and is used to measure the distance between the sheet metal part to be tested and the distance measuring component.

[0005] According to the rigidity testing device of this application embodiment, a working box and a force-applying mechanism are arranged on a support frame, allowing the force-applying mechanism to have variable dimensions in the vertical direction. Simultaneously, a distance measuring component is fixed below the working box for measuring the distance between the sheet metal part to be tested and the distance measuring component. Force can be applied to the sheet metal part to be tested, and the magnitude of the applied force can be controlled. The deformation of the sheet metal part under pressure can be measured through the distance measuring component, thereby measuring the rigidity of the sheet metal part to be tested. The rigidity testing device of this application can perform rigidity testing on single sheet metal parts such as hairnet outer panels, overcoming the limitations of existing testing devices and increasing the diversity of test objects. Furthermore, the measurement and operation methods of the rigidity testing device are simple, and it can replace manual testing of the rigidity of single sheet metal parts such as hairnet outer panels, achieving more accurate and efficient testing of the rigidity of the sheet metal part to be tested.

[0006] In addition, the rigidity testing device according to this application may also have the following additional technical features: In some embodiments of this application, the ranging component includes a first ranging instrument and a second ranging instrument. The first ranging instrument is used to measure the distance between the first ranging instrument and the sheet metal part under test when the force applying mechanism does not apply force to the sheet metal part under test. The second ranging instrument is used to measure the distance between the second ranging instrument and the sheet metal part under test after the force applying mechanism applies force to the sheet metal part under test.

[0007] In this application, the displacement of the sheet metal part under test before and after deformation under applied force can be obtained by measuring two sets of distance data through the first and second rangefinders, thereby calculating the deformation of the sheet metal part under test. This is beneficial for realizing the quantitative test of the rigidity of the sheet metal part under test, thereby improving the accuracy of the stiffness test.

[0008] In some embodiments of this application, the first rangefinder and the second rangefinder are infrared distance measuring instruments.

[0009] In this application, the infrared distance tester has a simple structure and high measurement accuracy. It does not require the first and second rangefinders to contact the sheet metal part under test, which can simplify the structure of the ranging component and thus facilitate the structural optimization of the rigidity testing device.

[0010] In some embodiments of this application, the force-applying mechanism includes a fixing part and a force-applying part. The upper end of the fixing part is fixedly connected to the working box. The force-applying part extends along the vertical direction and is movably disposed on the fixing part along the vertical direction. The lower end of the force-applying part is adapted to abut against the sheet metal part to be tested.

[0011] In this application, the fixing part can achieve a fixed connection between the force-applying mechanism and the working box. The force-applying part, which extends in the vertical direction, is movable in the vertical direction, thereby enabling dimensional changes in the force-applying mechanism in the vertical direction. This allows the force-applying mechanism to apply or unload force to the sheet metal part under test. The structure is simple and easy to implement. By controlling the distance the force-applying part moves in the vertical direction, the magnitude of the force applied to the sheet metal part under test can also be controlled, which is beneficial for quantitative testing of the rigidity of the sheet metal part under test, thereby improving the accuracy of the rigidity test.

[0012] In some embodiments of this application, the rigidity testing device further includes a drive mechanism located inside the working box, which is used to drive the force-applying part to move along the vertical direction.

[0013] In this application, the force-applying part can be moved automatically without the need for manual control of its up-and-down movement. The drive mechanism can also achieve closed-loop control of the force, movement speed, and position of the force-applying part, thereby improving the testing efficiency and accuracy of the rigidity testing device.

[0014] In some embodiments of this application, the rigidity testing device further includes a force controller, which is disposed on the working box and is communicatively connected to the drive mechanism for controlling the start and stop of the drive mechanism.

[0015] In this application, the operator can control the drive mechanism by controlling the force controller, which can be a button or an operation page, etc. This can achieve human-machine isolation, eliminating the need for the operator to manually operate the drive mechanism or put their hand directly into the force application part, thereby enhancing operational safety and improving the automation level of the rigidity testing device.

[0016] In some embodiments of this application, the force controller includes a coarse adjustment controller and a fine adjustment controller. The coarse adjustment controller controls the driving mechanism to drive the force application mechanism to change its size along the vertical direction at a rate greater than the rate controlled by the fine adjustment controller.

[0017] In this application, the start / stop and speed of the up-and-down movement of the force-applying part are controlled by a coarse adjustment controller and a fine adjustment controller on the workpiece. The coarse adjustment controller can control the drive mechanism to drive the force-applying part to move quickly in the up-and-down direction, saving time when the force-applying part approaches or moves away from the sheet metal part being tested. The fine adjustment controller can control the drive mechanism to drive the force-applying part to move slowly and minutely in the up-and-down direction, improving the accuracy of controlling the movement of the force-applying part. When the force-applying part comes into contact with the sheet metal part being tested, the fine adjustment controller can control the minute movement of the force-applying part to adjust the magnitude of the applied force.

[0018] In some embodiments of this application, the rigidity testing device further includes a pressure sensor and a pressure display. The pressure sensor is located at the lower end of the force-applying mechanism and is used to measure the magnitude of the force applied by the force-applying mechanism to the sheet metal part to be tested. The pressure display is located on the working box and is communicatively connected to the pressure sensor to display the pressure value measured by the pressure sensor.

[0019] In this application, a force-applying mechanism applies force to the sheet metal part under test to deform it. A pressure sensor is located at the lower end of the force-applying mechanism, which can detect the pressure applied to the sheet metal part under test in real time. The pressure value is then displayed on a pressure display. This allows the operator to obtain the pressure value applied to the sheet metal part under test in real time, facilitating real-time adjustment of the applied force value and accurately quantifying rigidity-related data, thereby achieving a more precise rigidity testing objective.

[0020] In some embodiments of this application, the rigidity testing device further includes a deformation display, which is disposed on the work box and is communicatively connected to the ranging component to display the deformation of the sheet metal part to be tested.

[0021] In this application, after measuring the distance between the deformation display and the sheet metal part under test, the processor calculates the deformation of the sheet metal part under test, and then displays the deformation of the sheet metal part under test through the deformation display, so that the operator can obtain the deformation of the sheet metal part under test in real time, which facilitates accurate quantitative testing of rigidity-related data, thereby achieving a more accurate rigidity testing purpose.

[0022] In some embodiments of this application, the support frame includes a support crossbeam and a support longitudinal beam. The support crossbeam extends horizontally, and the work box is fixed on the support crossbeam. The support longitudinal beam is provided at both ends of the support crossbeam along its length. The support longitudinal beam extends vertically, and a roller is provided at the lower end of the support longitudinal beam.

[0023] In this application, the entire rigidity testing device can be moved using rollers, which improves the convenience of moving the rigidity testing device above the sheet metal part to be tested. It also allows the force application mechanism to be aligned with any position on the sheet metal part to be tested, thereby enabling the measurement of the rigidity at any position on the sheet metal part. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a rigidity testing device and a sheet metal part to be tested according to an embodiment of this application; Figure 2 This is a schematic diagram of the rigidity testing device provided in one embodiment of this application, where the support frame is not shown.

[0025] Explanation of reference numerals in the attached figures: 100. Rigidity testing device; 1. Support frame; 11. Support beam; 12. Support longitudinal beam; 13. Rollers; 2. Work box; 3. Force-applying mechanism; 31. Fixing part; 32. Force-applying part; 4. Distance measuring component; 41. First distance measuring instrument; 42. Second distance measuring instrument; 5. Force controller; 51. Coarse adjustment controller; 52. Fine adjustment controller; 6. Pressure sensor; 7. Pressure indicator; 8. Deformation indicator; 200. Sheet metal parts to be tested. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The rigidity testing device 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0031] like Figure 1 and Figure 2 As shown, the rigidity testing device 100 according to an embodiment of the present invention includes a support frame 1, a working box 2, a force application mechanism 3, and a distance measuring component 4.

[0032] Specifically, such as Figure 1 and Figure 2As shown, the working box 2 is fixed on the support frame 1, the upper end of the force application mechanism 3 is connected to the working box 2, the size of the force application mechanism 3 is variable in the vertical direction, and it is used to apply force to the sheet metal part 200 to be tested. The distance measuring component 4 is fixed below the working box 2 and is used to measure the distance between the sheet metal part 200 to be tested and the distance measuring component 4.

[0033] The rigidity testing device 100 can be used for testing vehicle components, specifically for measuring the rigidity of a sheet metal part 200 to be tested. The sheet metal part 200 can be an exterior body panel such as a hood panel. In use, the sheet metal part 200 is positioned below the rigidity testing device 100. A force-applying mechanism 3 is located at the lower end of the work chamber 2. The force-applying mechanism 3 has a variable vertical dimension. As its vertical length increases until its lower end abuts against the sheet metal part 200, the force-applying mechanism 3 applies force to the sheet metal part 200, causing it to deform. The magnitude of the force applied to the sheet metal part 200 by the force-applying mechanism 3 can be controlled by adjusting the vertical dimension of the force-applying mechanism 3.

[0034] The ranging component 4 is fixed below the work box 2 and can measure the distance between the sheet metal part 200 to be tested and the ranging component 4. Specifically, the ranging component 4 can be an infrared rangefinder. For example, when the force applying mechanism 3 has not applied force to the sheet metal part 200 to be tested, the ranging component 4 can first measure a set of distances between the sheet metal part 200 to be tested and the ranging component 4. After the force applying mechanism 3 comes into contact with the sheet metal part 200 to be tested and applies force, another set of distances between the sheet metal part 200 to be tested and the ranging component 4 can be measured. The difference between the two sets of measured distance data can be used to calculate the deformation of the sheet metal part 200 to be tested.

[0035] Preferably, the ranging component 4 is positioned in the vertical direction opposite to the point where force is applied to the sheet metal part 200 to be measured. The ranging component 4 is positioned as close as possible to the force-applying mechanism 3, thereby ensuring the accuracy of the distance between the ranging component 4 and the point where force is applied to the sheet metal part 200 to be measured, thus improving the accuracy of the measurement of the deformation of the sheet metal part 200 to be measured.

[0036] The force-applying mechanism 3 applies force to the sheet metal part 200 under test and controls the magnitude of the applied force. Combined with the distance measuring component 4, the deformation of the sheet metal part 200 under pressure is measured. This allows for the examination of the sheet metal part 200's ability to resist compressive deformation, and the rigidity of the sheet metal part 200 can be quantitatively measured. The rigidity testing device 100 can reproduce the actual working conditions of the rigidity test of the sheet metal part 200, employing a simple and flexible testing method to ensure the accuracy of the rigidity test.

[0037] Existing rigidity testing equipment is primarily used for testing the entire headlight assembly and is not suitable for testing individual sheet metal parts such as the headlight outer panel. Furthermore, the current standard practice for rigidity testing of individual sheet metal parts like the headlight outer panel involves workers using oilstones for quality inspection, observing the deformation and springback of the stressed areas to determine the part's rigidity. This method lacks effective quantitative data reflecting the rigidity of individual sheet metal parts, and variations and unevenness in the manual pressure applied can also affect the accuracy of the test.

[0038] The rigidity testing device 100 of this application can perform rigidity tests on single sheet metal parts such as the outer panel of a hairnet, overcoming the limitations of existing testing devices and increasing the diversity of test objects. Furthermore, the rigidity testing device 100 has simple measurement and operation methods and can replace manual testing of the rigidity of single sheet metal parts such as the outer panel of a hairnet, achieving more accurate and efficient testing of the rigidity of the sheet metal part 200 under test.

[0039] According to the rigidity testing device 100 of this utility model embodiment, a working box 2 and a force-applying mechanism 3 are arranged on a support frame 1, allowing the force-applying mechanism 3 to have variable dimensions in the vertical direction. Simultaneously, a distance measuring component 4 is fixed below the working box 2 to measure the distance between the sheet metal part 200 to be tested and the distance measuring component 4. Force can be applied to the sheet metal part 200 to be tested, and the magnitude of the applied force can be controlled. The deformation of the sheet metal part 200 under pressure can be measured by the distance measuring component 4, thereby measuring the rigidity of the sheet metal part 200. The rigidity testing device 100 of this application can perform rigidity testing on single sheet metal parts such as hairnet outer panels, overcoming the limitations of existing testing devices in terms of applicable objects, increasing the diversity of test objects, and providing simple measurement and operation methods. It can also replace manual testing of the rigidity of single sheet metal parts such as hairnet outer panels, achieving more accurate and efficient testing of the rigidity of the sheet metal part 200 to be tested.

[0040] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the ranging component 4 includes a first ranging instrument 41 and a second ranging instrument 42. The first ranging instrument 41 is used to measure the distance between the first ranging instrument 41 and the sheet metal part 200 under test when the force applying mechanism 3 does not apply force to the sheet metal part 200 under test. The second ranging instrument 42 is used to measure the distance between the second ranging instrument 42 and the sheet metal part 200 under test after the force applying mechanism 3 applies force to the sheet metal part 200 under test. When the force-applying mechanism 3 does not apply force to the sheet metal part 200 under test, the distance between the sheet metal part 200 under test and the first distance measuring instrument 41 is measured first. When the force-applying mechanism 3 comes into contact with the sheet metal part 200 under test and applies force, the distance between the sheet metal part 200 under test and the second distance measuring instrument 42 is measured again. The displacement of the sheet metal part 200 under test before and after deformation under the applied force can be obtained by using the two sets of measured distance data, that is, the deformation of the sheet metal part 200 under test can be calculated. This is beneficial to realize the quantitative test of the rigidity of the sheet metal part 200 under test, thereby improving the accuracy of the rigidity test.

[0041] In some embodiments of this utility model, the first rangefinder 41 and the second rangefinder 42 are infrared distance testers. The infrared distance tester specifically includes a transmitter and a receiver. The transmitter emits infrared rays towards the sheet metal part 200 to be tested. The infrared rays are reflected by the sheet metal part 200 and then received by the receiver, thereby measuring the distance between the first rangefinder 41 or the second rangefinder 42 and the sheet metal part 200. This method has a simple structure and high measurement accuracy. It eliminates the need for the first rangefinder 41 and the second rangefinder 42 to contact the sheet metal part 200, simplifying the structure of the distance measuring component 4 and facilitating structural optimization of the rigidity testing device 100.

[0042] In some embodiments, the ranging component 4 can also measure the distance between the ranging component 4 and the sheet metal part 200 after the force-applying mechanism 3 applies force to the sheet metal part 200 and leaves. In this way, the ranging component 4 can not only obtain the deformation of the sheet metal part 200 before and after the force is applied, but also the deformation of the sheet metal part 200 after the force-applying mechanism 3 unloads and rebounds, thereby more accurately measuring the rigidity of the sheet metal part 200.

[0043] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the force-applying mechanism 3 includes a fixing part 31 and a force-applying part 32. The upper end of the fixing part 31 is fixedly connected to the working box 2. The force-applying part 32 extends in the vertical direction and is movably disposed on the fixing part 31 in the vertical direction. The lower end of the force-applying part 32 is adapted to abut against the sheet metal part 200 to be tested. The fixing part 31 can realize the fixed connection between the force-applying mechanism 3 and the working box 2. The force-applying part 32, which extends in the vertical direction, is movable in the vertical direction, thereby realizing the dimensional change of the force-applying mechanism 3 in the vertical direction. This allows the force-applying mechanism 3 to apply force or unload force to the sheet metal part 200 to be tested. The structure is simple and easy to implement. By controlling the size of the moving distance of the force-applying part 32 in the vertical direction, the magnitude of the force applied by the force-applying part 32 to the sheet metal part 200 to be tested can also be controlled, which is beneficial for realizing the quantitative test of the rigidity of the sheet metal part 200 to be tested, thereby improving the accuracy of the rigidity test.

[0044] Specifically, a sliding cavity may be provided in the fixing part 31, which extends in the vertical direction. At least a portion of the force-applying part 32 is slidably disposed in the sliding cavity. The sheet metal part 200 to be tested is located below the force-applying part 32. The force-applying part 32 moves downward until the lower end of the force-applying part 32 abuts against the sheet metal part 200 to be tested. In this way, the force-applying mechanism 3 applies force to the sheet metal part 200 to be tested, causing the sheet metal part 200 to be tested to deform. By controlling the force-applying part 32 to slide in the vertical direction, the magnitude of the force applied by the force-applying part 32 to the sheet metal part 200 to be tested can also be controlled.

[0045] In some embodiments of this utility model, the rigidity testing device 100 further includes a drive mechanism located inside the working box 2, which drives the force-applying part 32 to move in the vertical direction. This enables automated movement of the force-applying part 32 without manual control of its vertical movement. The drive mechanism also enables closed-loop control of the force, movement speed, and position of the force-applying part 32, thereby improving the testing efficiency and accuracy of the rigidity testing device 100.

[0046] In some embodiments of this utility model, the driving mechanism is a cylinder. A piston is installed inside the cylinder, enabling reciprocating motion of the piston. This connects the force-applying part 32 to the piston, allowing for efficient up-and-down reciprocating motion of the force-applying part 32. The cylinder moves very quickly, rapidly completing the "descend-apply pressure-hold pressure-rise" cycle, significantly shortening the single test time. This enables high-frequency, repeatable rigidity testing of the rigidity testing device 100. The cylinder can automatically position the test point of the force-applying part 32, execute the test, and record data without manual intervention, achieving a fully automated testing process for the rigidity testing device 100. Furthermore, stable air pressure can be provided through air source processing components such as pressure regulating valves and precision pressure reducing valves, allowing the cylinder to provide stable and precisely adjustable force, thereby improving the accuracy of rigidity testing of the sheet metal part 200 under test.

[0047] For example, the cylinder may include a cylinder barrel, a piston, and a piston rod. The piston divides the cylinder into an upper chamber and a lower chamber. By controlling the entry of compressed air into one of the upper or lower chambers, the piston moves vertically within the cylinder barrel. For instance, compressed air enters from the upper chamber inlet, pushing the piston downwards, and the air in the lower chamber is discharged through the exhaust port to release pressure; or compressed air enters from the lower chamber inlet, pushing the piston upwards, and the air in the upper chamber is discharged through the exhaust port to release pressure. This allows the piston to reciprocate vertically within the cylinder barrel. The piston rod is connected to both the piston and the force-applying part 32, transmitting mechanical force to the force-applying part 32 and driving it to move vertically.

[0048] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the rigidity testing device 100 also includes a force controller 5, which is mounted on the work box 2. The force controller 5 is communicatively connected to the drive mechanism and is used to control the start and stop of the drive mechanism. Thus, the operator can control the drive mechanism by controlling the force controller 5, which can be a button or an operation page, etc. This achieves human-machine isolation, eliminating the need for the operator to manually operate the drive mechanism or directly reach their hand to the force application part 32, enhancing operational safety and improving the automation level of the rigidity testing device 100.

[0049] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the force controller 5 includes a coarse adjustment controller 51 and a fine adjustment controller 52. The rate at which the coarse adjustment controller 51 controls the drive mechanism to drive the force application mechanism 3 to change its size in the vertical direction is greater than the rate at which the fine adjustment controller 52 controls the drive mechanism to drive the force application mechanism 3 to change its size in the vertical direction.

[0050] After the rigidity testing device 100 is powered on, the start / stop and speed of the up-and-down movement of the force-applying part 32 can be controlled by the coarse adjustment controller 51 and the fine adjustment controller 52 on the work box 2. The coarse adjustment controller 51 can control the drive mechanism to drive the force-applying part 32 to move quickly in the up-and-down direction, which can save time for the force-applying part 32 to approach or move away from the sheet metal part 200 under test. The fine adjustment controller 52 can control the drive mechanism to drive the force-applying part 32 to move slowly and slightly in the up-and-down direction, which can improve the accuracy of controlling the movement of the force-applying part 32. When the force-applying part 32 comes into contact with the sheet metal part 200 under test, the fine adjustment controller 52 can control the slight movement of the force-applying part 32 to adjust the magnitude of the applied force.

[0051] For example, the driving mechanism is a cylinder, which includes a cylinder barrel, a piston, and a piston rod. The piston divides the cylinder into an upper chamber and a lower chamber. By controlling the flow of compressed air into one of the upper or lower chambers, the piston moves vertically within the cylinder barrel. The coarse adjustment controller 51 and the fine adjustment controller 52 can control the amount of compressed air entering the upper or lower chamber. The coarse adjustment controller 51 controls the unit intake air volume entering the upper or lower chamber to be greater than the unit intake air volume controlled by the fine adjustment controller 52. This allows for the start and stop of the vertical movement of the force-applying part 32 and the control of its vertical movement speed.

[0052] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the rigidity testing device 100 also includes a pressure sensor 6 and a pressure display 7. The pressure sensor 6 is located at the lower end of the force application mechanism 3 and is used to measure the magnitude of the force applied by the force application mechanism 3 to the sheet metal part 200 under test. The pressure display 7 is located on the working box 2 and is communicatively connected to the pressure sensor 6 to display the pressure value measured by the pressure sensor 6.

[0053] The force-applying mechanism 3 applies force to the sheet metal part 200 under test, causing it to deform. A pressure sensor 6 is located at the lower end of the force-applying mechanism 3, positioned between the force-applying mechanism 3 and the sheet metal part 200. This sensor can detect the pressure applied to the sheet metal part 200 by the force-applying mechanism 3 in real time, and then display the pressure value on the pressure display 7. This allows the operator to obtain the pressure value applied to the sheet metal part 200 in real time, facilitating real-time adjustment of the applied force and accurate quantitative testing of rigidity-related data, thereby achieving a more precise rigidity testing objective.

[0054] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the rigidity testing device 100 also includes a deformation display 8, which is mounted on the work box 2 and is communicatively connected to the distance measuring component 4. The deformation display 8 is used to display the deformation of the sheet metal part 200 under test. After measuring the distance between the deformation display 8 and the sheet metal part 200 under test, the processor calculates the deformation of the sheet metal part 200 and displays the deformation on the display. This allows the operator to obtain the deformation of the sheet metal part 200 under test in real time. Combined with the pressure value applied to the sheet metal part 200 under test displayed in real time by the pressure display, it facilitates accurate quantitative testing of rigidity-related data, thereby achieving a more precise rigidity testing objective.

[0055] In some embodiments of this utility model, such as Figure 1As shown, the support frame 1 includes a support beam 11 and a support longitudinal beam 12. The support beam 11 extends horizontally, and the work box 2 is fixed on the support beam 11. Support longitudinal beams 12 are respectively provided at both ends of the support beam 11 along its length. The support longitudinal beams 12 extend vertically, and rollers 13 are provided at the lower ends of the support longitudinal beams 12. The rollers 13 allow the support frame 1 to move as a whole, thereby enabling the rigidity testing device 100 to move as a whole, improving the convenience of moving the rigidity testing device 100 above the sheet metal part 200 to be tested. The rigidity testing device 100 can also be moved so that the force application mechanism 3 is aligned with any position on the sheet metal part 200 to be tested, thus allowing the rigidity of any position on the sheet metal part 200 to be measured, further improving the accuracy and comprehensiveness of the rigidity measurement by the rigidity testing device 100.

[0056] In some embodiments of this utility model, such as Figure 1 As shown, the length of the support beam 11 is adjustable. Specifically, the support beam 11 can be a telescopic rod, allowing for length adjustment to accommodate sheet metal parts 200 of different sizes. This increases the versatility of the rigidity testing device 100, enhancing its adaptability and flexibility. Furthermore, after use, the support beam 11 can be shortened to reduce its space requirements, facilitating storage and portability. This reduces storage and placement difficulties and allows for easy transport to different testing sites, expanding the application scenarios of the rigidity testing device 100.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rigidity testing device, characterized in that, include: Support frame; A work box, which is fixed to the support frame; A force-applying mechanism, the upper end of which is connected to the work box, the force-applying mechanism having a variable dimension in the vertical direction, is used to apply force to the sheet metal part to be tested; A ranging component is fixed below the work box and is used to measure the distance between the sheet metal part to be measured and the ranging component.

2. The rigidity testing device according to claim 1, characterized in that, The ranging component includes a first ranging instrument and a second ranging instrument. The first ranging instrument is used to measure the distance between the first ranging instrument and the sheet metal part under test when the force applying mechanism does not apply force to the sheet metal part under test. The second ranging instrument is used to measure the distance between the second ranging instrument and the sheet metal part under test after the force applying mechanism applies force to the sheet metal part under test.

3. The rigidity testing device according to claim 2, characterized in that, The first and second rangefinders are infrared distance measuring instruments.

4. The rigidity testing device according to claim 1, characterized in that, The force-applying mechanism includes: The fixing part is fixedly connected to the working box at its upper end; The force-applying part extends along the vertical direction and is movably disposed on the fixed part along the vertical direction, and the lower end of the force-applying part is adapted to abut against the sheet metal part to be tested.

5. The rigidity testing device according to claim 4, characterized in that, The rigidity testing device also includes: A drive mechanism, located inside the work box, is used to drive the force-applying part to move along the vertical direction.

6. The rigidity testing device according to claim 5, characterized in that, Also includes: A force controller is mounted on the work box and is communicatively connected to the drive mechanism to control the start and stop of the drive mechanism.

7. The rigidity testing device according to claim 6, characterized in that, The force controller includes a coarse adjustment controller and a fine adjustment controller. The coarse adjustment controller controls the driving mechanism to drive the force application mechanism to change its size along the vertical direction at a rate greater than the rate controlled by the fine adjustment controller.

8. The rigidity testing device according to claim 1, characterized in that, Also includes: A pressure sensor is located at the lower end of the force-applying mechanism and is used to measure the magnitude of the force applied by the force-applying mechanism to the sheet metal part to be tested. A pressure display is mounted on the work box and is communicatively connected to the pressure sensor to display the pressure value measured by the pressure sensor.

9. The rigidity testing device according to claim 1, characterized in that, Also includes: A deformation display is mounted on the work box and is communicatively connected to the ranging component to display the deformation of the sheet metal part to be measured.

10. The rigidity testing device according to claim 1, characterized in that, The support frame includes: A support beam extends horizontally, and the work box is fixed on the support beam; The supporting longitudinal beam has supporting longitudinal beams at both ends along the length of the supporting crossbeam, and the supporting longitudinal beams extend along the vertical direction. Rollers are provided at the lower end of the supporting longitudinal beams.

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