Strength testing device and testing method for a vehicle storage box

Abstract

The present invention discloses a strength testing device and a testing method for a vehicle storage box, comprising: a base bracket; a storage box fixing tooling; a storage box; a testing assembly, wherein the testing assembly includes: an upper suspension module; a universal joint connection module, the universal joint connection module is connected to the lower end of the connecting rod, and the universal joint connection module vertically applies a load force to the edge of the storage bin of the storage box; a testing load, the testing load is used to simulate a downward acting force; a sliding rod, the sliding rod connects the testing load and the universal joint connection module; a bottom end limiting module, the bottom end limiting module is arranged at the bottom of the sliding rod for limiting the testing load.

Description

Technical Field

[0001] The present invention belongs to the field of automotive parts, and particularly relates to a strength testing device and a testing method for a vehicle storage box. Background Art

[0002] Passenger vehicles generally come with storage boxes that can be operated to open and close. As the most common functional moving parts, from the perspective of reliable quality, it is necessary to ensure that the functions are normal under various usage scenarios for users, including some special misuse situations, and there will be no obvious damage to the parts. For example, Figure 1 As shown, it is the storage box on the co-pilot side of a vehicle in the current market. The storage box 100 usually consists of two modules, a storage bin 110 and a support frame 120. Through a pin 111 on the corresponding structure at the bottom, the storage bin can be connected by pinning, enabling the storage bin to rotate around the support frame at the pin shaft position to achieve relative rotational movement; when the storage box is opened to a certain angle, in order to achieve the function of freely taking and placing items with both hands, that is, the storage bin cannot automatically fall and detach from the support frame after letting go. As Figure 2 shown, it is a schematic diagram of the storage bin limiting structure 112 and the support frame limiting structure 121 on the storage bin 110 and the support frame 120. In the actual use process of the vehicle, due to the frequent use of the storage box, various misuse behaviors may occur to the storage box, which requires higher strength and quality requirements for the internal components of the storage box, especially at the connection or contact position between the storage bin and the support frame.

[0003] Chinese Patent CN205506388U discloses a durability testing device for an automotive storage box and a power box flip cover, including a stepping motor, a motor fixing bracket, a motor fixing bracket seat, a swing rod, a tested object, a fixing tooling, an opening button, a controller, and a testing device main body; a power supply is provided inside the testing device main body, the motor fixing bracket seat is fixedly arranged on the top of the testing device main body, the motor fixing bracket is fixedly arranged on the motor fixing bracket seat, the stepping motor is fixedly arranged on the motor fixing bracket, one end of the swing rod is connected to the output shaft of the stepping motor, the other end of the swing rod is connected to the flip cover of the tested object, the fixing tooling is arranged on the top of the testing device main body, and the tested object is fixedly arranged on the testing device main body through the fixing tooling; the opening button and the controller are arranged on the testing device main body.

[0004] However, this solution cannot accurately simulate the installation posture of the storage box on the actual vehicle, and the operation method is not clear, and it is even more impossible to verify the force and other situations during the transient impact of the storage box. Therefore, the dynamic test verification of the connection strength and connection quality of the internal components of the storage box cannot be completed. Summary of the Invention

[0005] Embodiments of the present application solve the problem in the prior art that the installation posture of the storage box on the actual vehicle cannot be accurately simulated, and realize a clear and easy-to-operate test method and a modular test process by providing a strength test device and a test method for a vehicle storage box.

[0006] Embodiments of the present application provide a strength test device for a vehicle storage box, including:

[0007] A base bracket;

[0008] A storage box fixing tooling, which is fixed on the base bracket to provide a vertical space for subsequent tests;

[0009] A storage box, which includes:

[0010] A storage hopper, which has a first edge, and there are openings on the first edge, and the openings are arranged at positions deviating from the middle of the first edge;

[0011] A support frame, which fixes the storage box to the storage box fixing tooling; A test assembly, which includes:

[0012] An upper suspension module, the upper suspension module includes a connecting rod with an upper buffer ball, the connecting rod is inserted into the opening, the upper buffer ball arranged at the upper end of the connecting rod is stuck at the opening and contacts the first edge of the storage hopper, and the upper buffer ball plays a function of slow contact when applying a downward force to the storage box;

[0013] A universal joint connection module, which is connected to the lower end of the connecting rod, and the universal joint connection module vertically applies the load force to the edge of the storage hopper of the storage box;

[0014] A test load, which is used to simulate a downward force;

[0015] A slide rod, which connects the test load and the universal joint connection module;

[0016] A bottom limit module, which is arranged at the bottom of the slide rod to limit the test load.

[0017] Preferably, for the strength test device of the vehicle storage box, the universal joint connection module includes:

[0018] A universal joint, and both the upper and lower parts of the universal joint have lateral through holes;

[0019] A first pin, which is connected to the connecting rod through the upper through hole of the universal joint;

[0020] A second bolt, the second bolt is connected to the sliding rod through a lower through hole of the universal joint.

[0021] Preferably, for the strength testing device of the vehicle storage box, the sliding rod is sleeved in the test load, and the sliding rod is slidably connected to the test load.

[0022] Preferably, for the strength testing device of the vehicle storage box, a fixture is arranged on the base bracket, and the fixture includes:

[0023] A clamping part, the clamping part is used for clamping the test load;

[0024] A fixture support, the fixture support is fixed on the base bracket, and the fixture support is connected to the clamping part.

[0025] Preferably, for the strength testing device of the vehicle storage box, the test load has a notch, and the clamping part is a U-shaped fixture corresponding to the notch of the test load.

[0026] Preferably, for the strength testing device of the vehicle storage box, the fixture support is a cylinder support, a cylinder device with adjustable locking in the height direction is arranged on the cylinder support, and the output shaft end of the cylinder device is connected to the clamping part.

[0027] Preferably, for the strength testing device of the vehicle storage box, the sliding rod has a scale.

[0028] Preferably, for the strength testing device of the vehicle storage box, the upper end buffer ball is made of flexible nylon material.

[0029] Preferably, for the strength testing device of the vehicle storage box, the bottom end limit module includes:

[0030] A bottom end buffer module, the bottom end buffer module is made of nylon material with a slow contact function.

[0031] The embodiment of the present application also provides a strength testing method for the strength testing device of the vehicle storage box, including the following steps:

[0032] S1) Install the storage box on the storage box fixing tooling according to the installation parameters, and the installation parameters include the installation attitude and the fixed point position of the storage box;

[0033] S2) Select the test load and test time for the static test, and the test load and test time are defined according to the strength requirements of the parts;

[0034] S3) Connect the test load of the static test to the sliding rod for static testing;

[0035] S4) If any damage occurs to the storage box, terminate the test; otherwise, conduct a dynamic test.

[0036] S5) Select the test load and test height for the dynamic test, where the test load and test height are defined according to the part strength requirements.

[0037] S6) Raise the test load of the dynamic test to the test height and fix it with the fixture.

[0038] S7) Release the clamping part of the fixture to conduct the dynamic test.

[0039] S8) If any damage occurs to the storage box, the test fails; otherwise, the test passes.

[0040] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0041] 1. Since the storage box fixing tooling is provided and the storage box is set on the storage fixing tooling according to the installation parameters, the experimental environment for simulating the strength test of the storage box can be better simulated.

[0042] 2. Since the buffer ball is provided, it can play a function of slow contact when applying a downward force to the storage box subsequently, avoiding direct damage to the parts caused by strong impact.

[0043] 3. Since the I-shaped notch on the circumferential structure of the test load is matched with the U-shaped fixture during the dynamic test, surface contact can be formed between the two, avoiding the position distortion caused by the single-point support of the test load and reducing the stress concentration of the U-shaped fixture. Description of the Drawings

[0044] Figure 1 It is a schematic diagram of the storage box on the co-pilot side of the vehicle in the current market.

[0045] Figure 2 It is a schematic diagram of the storage bin limit structure and the support frame limit structure on the storage bin and the support frame.

[0046] Figure 3 It is a schematic diagram of the system during the static test of the strength test device for the vehicle storage box preferably in this embodiment.

[0047] Figure 4 It is a side view of the system during the static test of the strength test device for the vehicle storage box preferably in this embodiment.

[0048] Figure 5 It is a schematic diagram of the partial module loose parts composition of the test component preferably in this embodiment.

[0049] Figure 6 It is an exploded view of the system during the dynamic test of the strength test device for the vehicle storage box preferably in this embodiment.

[0050] Figure 7 Schematic diagram of the device system before dynamic testing of the strength testing device for a vehicle storage box preferably in this embodiment;

[0051] Figure 8 Side view of the device system before dynamic testing of the strength testing device for a vehicle storage box preferably in this embodiment;

[0052] Figure 9 Schematic diagram for calculating the lifting height required during dynamic testing of the strength testing device for a vehicle storage box preferably in this embodiment;

[0053] Figure 10 Schematic diagram of the device system after dynamic testing of the strength testing device for a vehicle storage box preferably in this embodiment;

[0054] Figure 11 Flow chart of the testing method of the strength testing device for a vehicle storage box;

[0055] Figure 12 Specific process schematic diagram of the testing method of the strength testing device for a vehicle storage box.

[0056] Reference numerals:

[0057] Storage box - 100;

[0058] Storage bin - 110;

[0059] Plug pin - 111;

[0060] Storage bin limit structure - 112;

[0061] First edge - 113;

[0062] Opening - 114;

[0063] Support frame - 120;

[0064] Support frame limit structure - 121;

[0065] Testing component - 200;

[0066] Upper suspension module 210;

[0067] Connecting rod - 211;

[0068] Upper buffer ball - 212;

[0069] Connecting rod lateral through hole position - 213

[0070] Upper limit nut - 214

[0071] Universal joint connection module - 220;

[0072] Universal joint - 221;

[0073] First pin - 222;

[0074] Second pin - 223;

[0075] Lateral through - hole position at the upper end of the universal joint - 224;

[0076] Lateral through - hole position at the lower end of the universal joint - 225;

[0077] Slide rod - 230;

[0078] Test load - 240;

[0079] Bottom limit module 250;

[0080] Bottom buffer block - 251;

[0081] Bottom limit nut - 252;

[0082] Storage box fixing tooling - 300;

[0083] Base bracket - 400;

[0084] Fixture - 500;

[0085] U - shaped fixture - 510;

[0086] Cylinder support - 520;

[0087] Cylinder equipment - 530. Detailed implementation manners

[0088] To make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the accompanying drawings in the embodiments of this application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, rather than all of the embodiments. The embodiments described below by referring to the drawings are exemplary and are intended to explain this application, and should not be construed as limiting this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0089] In addition, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", "linked", etc. used in the description of this application should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can also be the communication inside two components. Those skilled in the art can understand its specific meaning in this application according to specific circumstances.

[0090] The preferred embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0091] Figure 3 It is a system schematic diagram during the static test of the strength test device for the vehicle storage box preferably in this embodiment. Figure 4 It is a system side view during the static test of the strength test device for the vehicle storage box preferably in this embodiment. As Figure 3 and Figure 4 shown, the strength test device for the vehicle storage box includes: a base bracket 400, a storage box fixing tooling 300, a test component 200, and a storage box 100. The storage box 100 is based on existing storage box data. Preferably in this embodiment, based on existing CAD data, it is installed on the storage box fixing tooling 300 according to its actual installation attitude angle in the vehicle and the positions of the fixed connection points with surrounding parts (instrument panel, cross beam, trim panel, etc.). The storage box fixing tooling 300 is installed on the base bracket 400. The base bracket 400 is used to support the storage box fixing tooling 300 and provide vertical space for subsequent tests. The storage box 100 includes a storage bin 110 and a support frame 120. The storage bin includes a first edge 113 and an opening 114. The opening 114 is provided at a position deviating from the middle of the first edge 113. Preferably, it is 20 mm away from the middle of the first edge 113.

[0092] The test component 200 is connected to the storage bin 110 through the opening 114. As Figure 5 shown, Figure 5The schematic diagram of the partial modular components of the preferred test assembly of this embodiment is shown in FIG. 200. The test assembly 200 includes: an upper suspension module 210, a universal joint connection module 220, a slide bar 230, a test load 240, and a bottom limit module 250. The upper suspension module 210 mainly includes: a connecting rod 211 and an upper buffer ball 212. The size of the connecting rod 211 is consistent with the size of the opening 114, and the connecting rod 211 is inserted into 114. The upper buffer ball 212 is arranged at the upper end of the connecting rod 211, wherein the upper buffer ball 212 is generally made of materials such as PA nylon, has a certain degree of flexibility, and subsequently plays a slow contact function when a downward force is applied to the storage box. Slow contact refers to slowing down the impact and instantly increasing the damping, which can avoid direct damage to parts by strong impact. The upper buffer ball 212 is fixedly connected to the connecting rod 211. In this embodiment, a thread is designed at one end of the connecting rod, and a lateral through hole 213 of the connecting rod is designed at the other end. The upper buffer ball 212 is fixed to the connecting rod 211 by the through hole set in the upper buffer ball 212 and the thread set in the connecting rod 211 and the upper limit nut 214.

[0093] The universal joint connection module 220 is connected to the connecting rod 211 through the connecting rod lateral through hole 213. The universal joint connection module 220 includes: a universal joint 221, a first latch 222, a second latch 223, a universal joint upper lateral through hole 224, and a universal joint lower lateral through hole 225. The latches 222 and 223 can be inserted into the through holes 224 and 225. The universal joint connection module 220 can vertically apply the load force to the edge of the storage bucket 110 of the storage box 100, while trying to avoid the generation of additional torsional moment, bending moment interference, etc. on the storage bucket.

[0094] like Figure 3 and Figure 4 As shown, the slide bar 230 is connected to the universal joint connection module 220 via the first latch 222, and the test load 240 is connected to the slide bar 230 to simulate a downward force. In this embodiment, the test load 240 has an opening in the center, and the size of the opening matches the size of the slide bar 230. The test load 240 is sleeved on the slide bar 230 and can slide with the slide bar 230 without damping. The bottom limit module 250 is disposed at the bottom of the slide bar 230 to limit the test load 240, prevent the test load 240 from slipping out of the slide bar 230, and play a role in force transmission. In this embodiment, as Figure 5As shown, there is a scale at the bottom of the slide bar 230, and the reference point of the scale is located at the upper edge of the bottom buffer block as described above, and the value gradually increases from bottom to top. The bottom limit module 250 includes: a bottom buffer block 251 and a bottom limit nut 252. Among them, the bottom buffer block 251 is generally made of PA nylon and other materials, and also has a slow contact function to avoid strong noise caused by impact, and has a through hole in the center from top to bottom. The bottom limit nut 252 is matched with the thread set at the bottom of the slide bar 230 to fix the test load 240 and the bottom limit module 250 on the slide bar 230.

[0095] When conducting a static test, the threaded end of the connecting rod 211 is passed from bottom to top through the opening 114 of the storage bucket 110 and the upper buffer ball 212, and is locked and suspended by engaging with the connecting rod thread through the upper limit nut 214. Then the storage box 100 to be tested is installed on the storage box fixing tool 300, and then the storage box fixing tool 300 is installed on the base bracket 400; one end of the sliding rod 230 is designed with a thread, and the other end is also designed with a lateral through hole. There is also a through hole between the test load 240 and the bottom buffer block 251. The bottom buffer block 251 is passed through the threaded side of the sliding rod 230 and fixed by the bottom limit nut 252. The test load is passed from the lateral hole side of the sliding rod 230. Since the through hole surfaces of the sliding rod 230 and the test load 240 are very smooth, it can be approximately considered that there is no friction between the two. Friction; There are lateral through holes 224 and 225 on the upper and lower sides of the universal joint 221. Before starting the test, first use the second pin 223 to connect the universal joint 221 to the connecting rod 211 (through the lateral hole-axis hole of the connecting rod / universal joint), and then lift the slide bar 230 vertically. At this time, the test load 240 will slide to the bottom of the slide bar 230 close to the bottom limit module 250, and then connect the universal joint 221 to the slide bar 230 through the first pin 222 (also through the lateral axis hole of the universal joint / slide bar). The universal joint connection module 220 can apply the load force vertically to the edge of the storage bucket 110 of the storage box 100, and try to avoid the load force on the storage bucket 110. Generate additional bending moment, etc., and let it stand in this state for t (min) to verify the connection strength between the internal components of the storage box 100. The static pressure can be obtained by calculation. Assuming the mass of the static test load is m1 (kg), the static pressure acting on the storage hopper is:

[0096] F1=m1·g(N);

[0097] In the above formula: m1 is the mass of the static test load;

[0098] g is the acceleration due to gravity, g≈10m / s 2 ;

[0099] It should be noted that the magnitude of the load mass m1 (kg), that is, the magnitude of the applied pressure, and the magnitude of the static placement time t (min) can be customized by each host according to the part strength requirements of their own enterprises. The use of the universal joint 221 enables the storage box 100 to be only subjected to static pressure, reducing the interference of other torsional forces, bending forces, etc.

[0100] Figure 6 This is an exploded view of the dynamic test system of the strength test device for the vehicle storage box preferably in this embodiment. As Figure 6 shown, different from the static test, a fixture 500 is required for the dynamic test. The fixture 500 includes a clamping part and a fixture support. Among them, the fixture support is fixed on the base bracket 400, and the fixture support is connected to the clamping part. In this preferred embodiment, the clamping part is a U-shaped fixture 510, and the fixture support is a cylinder support 520. It should be noted that there is a notch in the circumferential structure of the test load 240 for the dynamic test. In this preferred embodiment, there is an I-shaped notch in the circumferential structure. The fixture 500 also includes a cylinder device 530. The cylinder device 530 can control the U-shaped fixture 510 to be pushed into and pulled out of the notch in the circumferential structure of the test load 240 for the dynamic test, so as to realize the suspension fixation of the test load 240 in the spatial position. The I-shaped notch in the circumferential structure of the test load 240 can increase the contact area (surface contact) between the two when cooperating with the adopted U-shaped fixture 510, avoiding the position distortion caused by the single-point support of the test load 240 (especially when the U-shaped fixture is withdrawn instantaneously during the subsequent dynamic test), and can reduce the stress concentration of the U-shaped fixture 510. It should be further noted that the U-shaped fixture 510 is connected to the output shaft end of the cylinder device 530, and the cylinder support 520 is fixed on the support and can realize the height-direction adjustment and locking function.

[0101] Before the static test, after completing the static strength test of the storage box as above, if the test result is unqualified, that is, the storage bin 110 falls off from the support frame 120, there are obvious damages and injuries at the limit structure, etc., then this test is not passed and the parts need to be optimized; if the static test result is qualified, the dynamic strength test of the storage box will be carried out. Figure 7 This is a schematic diagram of the device system before the dynamic test of the strength test device for the vehicle storage box preferably in this embodiment, Figure 8 This is a side view of the device system before the dynamic test of the strength test device for the vehicle storage box preferably in this embodiment. As Figure 7 and Figure 8As shown, before the test, first pull out the first bolt 222, remove the sliding rod 230, the test load 240 for static test and the bottom limit module 250, and replace the static test load with the dynamic test load 240. Then install the cylinder device 530 and the cylinder support base on the base bracket 400, where the cylinder device 530 can be adjusted in the height direction of the cylinder support 520. The output end of the cylinder is connected and fixed with a U-shaped clamp 510, and the dynamic test load 240 has an I-shaped notch structure in the middle position. With the support force of the cylinder support and the cylinder device, the U-shaped clamp can be inserted into the I-shaped notch (by extending the cylinder output shaft) to realize the suspension and fixation of the test load 240 in the spatial position. There is an I-shaped notch in the peripheral structure of the test load 240, which can increase the contact area (surface contact) between the two when cooperating with the adopted U-shaped clamp 510, avoid the position distortion caused by the single-point support of the test load 240 (especially at the moment when the U-shaped clamp 510 is withdrawn during the subsequent dynamic test), and can reduce the stress concentration of the U-shaped clamp 510. Figure 9 This is a schematic diagram for calculating the height to be lifted during the dynamic test of the strength test device for the vehicle storage box preferably in this embodiment. As Figure 9 shown in A, the height h that the test load 240 needs to be lifted can be defined by itself or converted and calculated according to the required falling impact speed. As Figure 9 shown in B, if calculated according to the required falling impact speed, let the required instantaneous falling impact speed be V (m / s), then the height to be lifted is:

[0102]

[0103] In the above formula: m2 is the mass of the dynamic test load;

[0104] g is the acceleration due to gravity, g≈10m / s 2 .

[0105] It should also be noted that the size m2 (kg) of the above dynamic load mass, the height h (cm) to be lifted or the size V (m / s) of the required falling impact speed can still be customized by each main engine according to the part strength requirements of its own products.

[0106] During the test, by quickly retracting the cylinder output shaft, the cylinder output shaft returns to the non-extended state. Figure 10 This is a schematic diagram of the device system for the dynamic test of the strength test device for the vehicle storage box preferably in this embodiment. As Figure 9 and Figure 10As shown, at this time, since the dynamic test load has no support, it will fall downward along the sliding rod (from height h to the 0 position value), reach the bottom and be supported by the buffer block and the limit nut. Due to the force transmission, at this time, the storage bin will receive a transient impulse with an impact velocity of V and a force F2 = m2·g (N). If the storage box does not show any damage after this test and the storage bin does not come out of the support frame, the state after the test is as Figure 10 shown Figure 10 This is a schematic diagram of the device system after the dynamic test of the strength test device for the vehicle storage box preferably in this embodiment, that is, through this test, and vice versa.

[0107] Figure 11 This is a flowchart of the test method of the strength test device for the vehicle storage box;

[0108] As Figure 11 shown, the present application provides a test method for the strength test device of the vehicle storage box as described above, including the following steps:

[0109] S1) Install the storage box on the storage box fixing fixture according to the installation parameters, and the installation parameters include the installation attitude and the fixed point position of the storage box;

[0110] S2) Select the test load and test time for the static test, and the test load and test time are defined according to the strength requirements of the parts;

[0111] S3) Connect the test load of the static test to the sliding rod for the static test;

[0112] S4) If any damage occurs to the storage box, terminate the test, otherwise conduct the dynamic test;

[0113] S5) Select the test load and test height for the dynamic test, and the test load and test height are defined according to the strength requirements of the parts;

[0114] S6) Lift the test load of the dynamic test to the test height and fix it through the fixture;

[0115] S7) Release the clamping part of the fixture to conduct the dynamic test;

[0116] S8) If any damage occurs to the storage box, the test fails, otherwise the test passes.

[0117] Figure 12 This is a specific process schematic diagram of the test method of the strength test device for the vehicle storage box.

[0118] As Figure 12As shown, based on the data of the storage box 100, preferably based on the CAD data of the storage box, including the installation attitude and the position of the fixing points, a fixing tooling and a base bracket for the storage box are fabricated. An opening 114 is provided at a position where the first edge 113 of the storage hopper 110 deviates from the middle position. Preferably, the opening 114 is a round hole in this embodiment. The connecting rod 211 is passed through the opening 114 from top to bottom, and is suspended by locking with the upper buffer ball 212 and the limit nut; the storage box 100 is fixed on the storage box fixing tooling 300. The bottom limit nut 252 and the bottom buffer block 251 are passed through the position of the sliding rod at the bottom position. A scale is attached to the sliding rod 230 (with the upper edge of the bottom buffer block 251 as the reference), and then the test load 240 is also passed through the sliding rod. After the static test preparation is completed, the static test operation can be carried out. The connecting rod 211 is connected to the universal joint 221 by the second pin 223, where the weight of the test load is defined according to the part strength requirements. Then, the test load 240 is freely placed at the bottom of the sliding rod 230 and placed for a duration of t (min). Similarly, the placement duration is defined according to the part strength requirements. Then, it is judged whether the static test result is qualified. If any damage occurs to the storage box, the storage box fails the test. If no damage occurs, the preparation for the dynamic test can be carried out. Before the dynamic test, the cylinder device 530 and the cylinder support 520 are installed on the base bracket 400, the U-shaped clamp 510 is fixed at the output end of the cylinder, the test load 240 for the dynamic test is replaced according to the indication number on the scale, and is lifted to the specified height, where the specified height is defined according to the part requirements, and is supported at this position in space by the U-shaped clamp 510 through the cylinder device 530. During the test, the output shaft of the cylinder device 530 is quickly retracted (i.e., the cylinder output shaft returns to the non-extended state). At this time, the test load 240 will fall downward along the sliding rod 230 and reach the bottom to be supported by the bottom buffer block 251 and the bottom limit nut 252, and is transmitted through the sliding rod 230 to apply an instantaneous dynamic force to the storage hopper. Then, it is judged whether the dynamic test result is qualified. If any damage occurs to the storage box, it fails the test; if no damage occurs to the storage box, it passes the test.

[0119] The above-mentioned strength test device and method for the vehicle storage box utilize the gravitational force generated by a test load of a certain mass, and through the transmission effect of the force, a vertical acting force lasting for a certain period of time is generated at the edge of the middle position of the storage hopper of the opened storage box to complete the static test verification of the storage box; on the basis of the above, a test load of a certain mass falls and slides a certain distance on the sliding rod, and the test load will generate an instantaneous impulse effect on the storage box to complete the dynamic test verification of the connection strength and connection quality of the internal components of the storage box.

[0120] As described above, it is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution of the present application and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present application.

Claims

1. An intensity testing device for a vehicle storage box, comprising: Base bracket, storage box fixing tooling, storage box and test assembly; The storage box includes: a storage hopper and a support frame; the test assembly includes: an upper suspension module, a universal joint connection module, a test load, a slide bar and a bottom limit module; the storage box fixing tooling is fixed on the base bracket to provide a vertical space for subsequent tests; the storage hopper has a first edge, and there is an opening on the first edge, and the opening is arranged at a position deviating from the middle of the first edge; the support frame fixes the storage box on the storage box fixing tooling; the upper suspension module includes a connecting rod with an upper buffer ball, the connecting rod is inserted into the opening, and the upper buffer ball arranged at the upper end of the connecting rod is stuck at the opening and contacts the first edge of the storage hopper, and the upper buffer ball plays a slow contact function when applying a downward force to the storage box; the universal joint connection module is connected to the lower end of the connecting rod, and the universal joint connection module vertically applies the load force to the edge of the storage hopper of the storage box; the test load is used to simulate the downward force; the slide bar connects the test load and the universal joint connection module; the bottom limit module is arranged at the bottom of the slide bar to limit the test load.

2. The strength testing device for a vehicle storage box according to claim 1, characterized in that The universal joint connection module includes: A universal joint, and there are lateral through holes at both the upper and lower parts of the universal joint; A first pin, and the first pin is connected to the connecting rod through the upper through hole of the universal joint; A second pin, and the second pin is connected to the slide bar through the lower through hole of the universal joint.

3. The strength testing device for a vehicle storage box according to claim 1, characterized in that, The slide bar is sleeved in the test load, and the slide bar is slidably connected to the test load.

4. The strength testing device for a vehicle storage box according to claim 1, characterized in that A clamp is arranged on the base bracket, and the clamp includes: A clamping part, and the clamping part is used to clamp the test load; A clamp support, and the clamp support is fixed on the base bracket, and the clamp support is connected to the clamping part.

5. The strength testing device for a vehicle storage box according to claim 4, characterized in that, The test load has a notch, and the clamping part is a U-shaped clamp corresponding to the notch of the test load.

6. The strength testing device for a vehicle storage box according to claim 4, characterized in that, The clamp support is a cylinder support, and a cylinder device that can be adjusted and locked in the height direction is arranged on the cylinder support, and the output shaft end of the cylinder device is connected to the clamping part.

7. The strength testing device for a vehicle storage box according to claim 1, characterized in that, The slide bar has a scale.

8. The strength testing device for a vehicle storage box according to claim 1, characterized in that, The upper buffer ball is made of flexible nylon material.

9. The strength testing device for a vehicle storage box according to claim 1, characterized in that, The bottom limit module includes: A bottom buffer module, and the bottom buffer module is made of nylon material with a slow contact function.

10. A strength testing method for a strength testing device of a vehicle storage box according to any one of claims 1 to 9, characterized in that, The following steps are included: S1) Install the storage box on the storage box fixing tooling according to the installation parameters, and the installation parameters include the installation posture and the fixed point position of the storage box; S2) Select the test load and test time for the static test, and the test load and test time are defined according to the part strength requirements; S3) Connect the test load of the static test to the slide bar for the static test; S4) If any damage occurs to the storage box, terminate the test, otherwise conduct the dynamic test; S5) Select the test load and test height for the dynamic test, and the test load and test height are defined according to the part strength requirements; S6) Raise the test load of the dynamic test to the test height and fix it with a clamp; S7) Release the clamping part of the fixture to conduct the dynamic test; S8) If any damage occurs to the storage box, the test fails; otherwise, the test passes.

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