Testing device for simulating impact wear of automobile undercoat

Abstract

The utility model relates to the technical field of automobile undercoat glue testing devices, in particular to a testing device for simulating impact abrasion of automobile undercoat glue. The utility model discloses a testing device for simulating impact wear of an automobile undercoat. The testing device comprises a blanking assembly and a test mounting assembly, the blanking assembly comprises a first bottom plate, a base, a supporting rod and a blanking device, the base is fixedly arranged on the upper surface of the first bottom plate, the supporting rod is arranged in the vertical direction and fixedly connected with the base, and the blanking device comprises a blanking pipe and a blanking funnel. The testing device for simulating the impact wear of the automobile undercoat can truly simulate a scene when an automobile chassis is impacted by parts such as sandstones or nuts, facilitates the evaluation of the wear resistance of the undercoat at different impact angles, improves the testing accuracy, is simple and convenient in testing method, and solves the problems that an existing testing device is not enough in simulation degree and is not easy to test. The test accuracy is poor, and the deviation between the test result and the actual application condition is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile bottom glue test device technical field, especially in a kind of simulation automobile bottom glue is impacted and worn test device. BACKGROUND

[0002] During the driving of automobile, chassis part will be impacted and rubbed by road sandstone, these forces will cause the wear of bottom glue and chassis part.The main role of bottom glue is to provide anticorrosive, sound insulation and protection effect for automobile.Therefore, the wear resistance of automobile bottom glue has important influence on the overall performance and service life of automobile, and it is also very important to evaluate the wear resistance of bottom glue.The conventional test method of wear resistance of bottom glue usually relies on the simulation of actual driving condition, which needs to consume more test time and effort, or through simple friction tester to test and evaluate, at this time, the wear process under actual condition cannot be simulated comprehensively, and there is a certain deviation between test result and actual application condition, and the test accuracy is poor. UTILITY MODEL CONTENT

[0003] In view of the problems in the background art, the utility model aims at providing a kind of test device for simulating the impact and wear of automobile bottom glue, which can simulate the scene when automobile chassis is impacted by sandstone or nut part, facilitate to evaluate the wear resistance of bottom glue under different impact angles, improve the accuracy of test, and the test method is simple and convenient, solve the technical problems that the simulation degree of existing test device is not enough, the test accuracy is poor, and there is a large deviation between test result and actual application condition.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A kind of test device for simulating the impact and wear of automobile bottom glue, including blanking assembly and test installation assembly;

[0006] The blanking assembly includes first bottom plate, pedestal, strut and blanking device, the pedestal is fixedly arranged on the upper surface of the first bottom plate, the strut is arranged along vertical direction and is fixedly connected with the pedestal, the blanking device includes blanking pipe and blanking hopper, the blanking pipe is detachably installed on the strut, blanking passage is arranged through inside the blanking pipe along the length direction of itself, the blanking hopper is fixedly connected to the top of blanking pipe, and the discharge end of blanking hopper is communicated with blanking passage;

[0007] The test installation assembly comprises a collecting box and an installation support, the collecting box is arranged on the upper surface of the first bottom plate, the installation support comprises a second bottom plate, an inclined plate and an angle adjusting rod, the second bottom plate is fixedly arranged in the interior of the collecting box, one end of the inclined plate is hingedly connected with the end of the second bottom plate, the other end of the inclined plate is hingedly connected with the angle adjusting rod, and the angle adjusting rod is used for adjusting the inclination angle of the inclined plate.

[0008] The inclined plate is used for fixing a test sample plate, and the inclined plate is located directly below the blanking pipe.

[0009] Further, the end surface of the second bottom plate towards the inclined plate is provided with a plurality of angle adjusting grooves, and the plurality of angle adjusting grooves are arranged in a linear array, and one end of the angle adjusting rod away from the inclined plate is inserted into the angle adjusting groove.

[0010] Further, the installation support further comprises a clamping block, a guide rod, a spring and a rod head.

[0011] The inclined plate is provided with a guide hole penetrating through the plate surface, the guide rod is arranged through the guide hole, one end of the guide rod is connected with the clamping block, and the other end of the guide rod is connected with the rod head.

[0012] The clamping block is located on the side of the inclined plate away from the second bottom plate and abuts against the plate surface of the inclined plate.

[0013] The spring is sleeved on the outer surface of the guide rod, one end of the spring is fixedly connected with the rod head, and the other end of the spring is fixedly connected with the side of the inclined plate towards the second bottom plate.

[0014] Further, the clamping block is located at the upper position of the inclined plate.

[0015] Further, the inclined plate is provided with a plurality of ceramic heating sheets towards the plate surface of the second bottom plate, and the plurality of ceramic heating sheets are arranged in an array on the inclined plate.

[0016] Further, the top of the collecting box is provided with a blanking opening.

[0017] Further, the test device further comprises a transfer frame, the top of the transfer frame is open, the transfer frame is placed on the first bottom plate, and the top of the transfer frame is provided with a flow guide opening.

[0018] Further, the blanking assembly further comprises a connecting rod and a fastener, one end of the connecting rod is fixedly connected with the supporting rod, the other end of the connecting rod is provided with a fixing ring, the fixing ring is provided with a through hole penetrating in the vertical direction, the through hole is used for penetrating the blanking pipe, and the side wall of the fixing ring is provided with a mounting hole.

[0019] Further, the connecting rod is provided in multiple, the multiple connecting rods are arranged at intervals along the length direction of the supporting rod, and the fixing rings of the multiple connecting rods are arranged one by one.

[0020] Further, the diameter of the outlet end of the blanking funnel is smaller than that of the blanking channel, and the outlet end of the blanking funnel is inserted into the blanking channel.

[0021] Compared with the prior art, the embodiment of the utility model has the following beneficial effects:

[0022] The test device for simulating impact and abrasion of automobile chassis primer can simulate the scene when the automobile chassis is impacted by sandstone or nut parts, so as to conveniently evaluate the abrasion resistance of the primer under different impact angles, improve the test accuracy, and the test method is simple and convenient, and the technical problems of insufficient simulation degree, poor test accuracy, and large deviation between test results and actual application of the prior test device are solved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural diagram of the test device for simulating impact and abrasion of automobile chassis primer.

[0024] Figure 2 is a perspective view of the mounting bracket of the test installation assembly of the test device for simulating impact and abrasion of automobile chassis primer.

[0025] Figure 3 is a side view of the mounting bracket of the test installation assembly of the test device for simulating impact and abrasion of automobile chassis primer.

[0026] Figure 4 is a perspective view of the transfer frame of the test device for simulating impact and abrasion of automobile chassis primer.

[0027] Figure 5 is an assembly structure schematic view of the connecting rod and the blanking pipe of the blanking assembly of the test device for simulating impact and abrasion of automobile chassis primer.

[0028] Wherein: blanking assembly 1, first bottom plate 11, base 12, support rod 13, blanking device 14, blanking pipe 141, blanking funnel 142, connecting rod 15, fixed ring 151, through hole 1511, mounting hole 1512, fastener 16, test mounting assembly 2, collection box 21, blanking opening 211, mounting bracket 22, second bottom plate 221, angle adjusting groove 2211, inclined plate 222, guide hole 2221, ceramic heating sheet 2222, angle adjusting rod 223, clamping block 224, guide rod 225, spring 226, rod head 227, transfer frame 3, flow guide 31. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features, and have no order or weight.

[0031] As shown in Figures 1 to 5 A test device for simulating impact wear of automobile primer, comprising a blanking assembly 1 and a test mounting assembly 2;

[0032] The blanking assembly 1 comprises a first bottom plate 11, a base 12, a support rod 13 and a blanking device 14, the base 12 is fixedly arranged on the upper surface of the first bottom plate 1, the support rod 13 is arranged in the vertical direction and fixedly connected with the base 12, the blanking device 14 comprises a blanking pipe 141 and a blanking funnel 142, the blanking pipe 141 is detachably mounted on the support rod 13, a blanking passage is arranged through the inside of the blanking pipe 141 along the length direction of itself, the blanking funnel 142 is fixedly connected to the top of the blanking pipe 141, and the discharge end of the blanking funnel 142 is in communication with the blanking passage;

[0033] The test installation assembly 2 comprises a collecting box 21 arranged on the upper surface of the first bottom plate 11 and an installation support 22 comprising a second bottom plate 221 fixedly arranged inside the collecting box 21, an inclined plate 222 hingedly connected to one end of the second bottom plate 221, and an angle adjusting rod 223 hingedly connected to the other end of the inclined plate 222 and used for adjusting the inclination angle of the inclined plate 222.

[0034] The inclined plate 222 is used for fixing a test sample plate and is located directly below the blanking pipe 141.

[0035] By arranging the blanking assembly 1 and the test installation assembly 2, when testing, a test sample plate (the surface of which is coated with automobile primer to be tested) is fixed on the inclined plate 222, and a certain amount of test materials such as gravel and nuts are poured into the blanking funnel 142, the test materials fall through the blanking passage of the blanking pipe 141 and impact on the test sample plate, the test materials falling from the test sample plate fall into the collecting box 21, and after the experiment is completed, the primer on the test sample plate is observed to check whether it is cracked or worn, the weight of the test materials used when the cracking or wearing occurs is counted to evaluate the wear resistance of the primer, the upper limit of the wear resistance of the primer is known, and the greater the weight of the test materials used, the better the wear resistance of the primer (i.e., a larger amount of test materials is required to cause the primer to wear), and the test method is simple and convenient.

[0036] Since in the actual road environment, gravel may impact the chassis of the automobile at different angles, by arranging the installation support 22 and adjusting the inclination angle of the inclined plate 222 using the angle adjusting rod 223, the inclination angle of the test sample plate is different, and thus the wearing of the primer caused by the impact of gravel or nuts at different angles can be simulated, the performance of the primer at different impact angles is evaluated, and thus the scene of the automobile impacted by gravel is more comprehensively simulated, and the accuracy of the test is improved. In addition, since the inclination angle of the inclined plate 222 can be directly adjusted on the installation support 22, the angle adjustment is convenient, and the installation support 22 does not need to be frequently disassembled and assembled, and after a test at a certain inclination angle is completed, the inclination angle of the inclined plate 222 is directly adjusted through the angle adjusting rod 223, and the test efficiency is effectively improved.

[0037] The test device for simulating impact wear of automobile chassis primer can simulate the scene when the automobile chassis is impacted by sandstone or nut parts, so as to facilitate evaluation of the wear resistance of the primer under different impact angles, improve the accuracy of the test, and solve the technical problems of the prior art, such as insufficient simulation, poor test accuracy, and large deviation between test results and actual application.

[0038] Further, the second bottom plate 221 is provided with a plurality of angle adjusting grooves 2211 on the end face of the inclined plate 222, and the plurality of angle adjusting grooves 2211 are arranged in a linear array.

[0039] By arranging a plurality of angle adjusting grooves 2211 on the second bottom plate 221, when the inclination angle of the inclined plate 222 needs to be adjusted, the end of the angle adjusting rod 223 away from the inclined plate 222 is inserted into the angle adjusting groove 2211.

[0040] Further, the second bottom plate 221 is provided with a plurality of angle adjusting grooves 2211 on the end face of the inclined plate 222, and the plurality of angle adjusting grooves 2211 are arranged in a linear array.

[0041] Further, the mounting bracket 22 further comprises a clamping block 224, a guide rod 225, a spring 226, and a rod head 227.

[0042] The inclined plate 222 is provided with a guide hole 2221 along the plate surface, the guide rod 225 passes through the guide hole 2221, one end of the guide rod 225 is connected with the clamping block 224, and the other end of the guide rod 225 is connected with the rod head 227.

[0043] The clamping block 224 is located on the side of the inclined plate 222 away from the second bottom plate 221 and abuts against the plate surface of the inclined plate 222.

[0044] The spring 226 is sleeved on the outer surface of the guide rod 225, one end of the spring 226 is fixedly connected with the rod head 227, and the other end of the spring 226 is fixedly connected with the side of the inclined plate 222 facing the second bottom plate 221.

[0045] By setting the clamping block 224, the guide rod 225, the spring 226 and the rod head 227, the spring 226 is in a natural state, and the elastic force makes the clamping block 224 abut against the surface of the inclined plate 222. When it is needed to fix the test sample plate to the inclined plate 222, the clamping block 224 is pulled away from the surface of the inclined plate 222. At this time, the spring 226 is compressed, and the test sample plate is clamped between the clamping block 224 and the inclined plate 222. After the clamping block 224 is released, the clamping block 224 clamps the test sample plate under the elastic action of the spring 226, thereby fixing the test sample plate to the inclined plate 222. By setting the rod head 227, the installation of the spring 226 is realized. At the same time, the diameter of the rod head 227 is larger than that of the guide rod 225, so as to avoid that the guide rod 225 is separated from the guide hole 2221 when the guide rod 225 is pulled.

[0046] Specifically, the guide hole 2221 is in clearance fit with the guide rod 225. The guide hole 2221 is used for the movement of the guide rod 225 in the thickness direction of the inclined plate 222, and the guide rod 225 cannot swing under the limitation of the guide hole 2221.

[0047] Preferably, the clamping block 224 is located at the upper position of the inclined plate 222.

[0048] By setting the clamping block 224 at the upper position of the inclined plate 222, the upper part of the test sample plate can be clamped when the test sample plate is clamped, so as to avoid the blockage of the falling of test materials such as sand and nuts.

[0049] Preferably, the inclined plate 222 is provided with a plurality of ceramic heating sheets 2222 towards the surface of the second bottom plate 221. The plurality of ceramic heating sheets 2222 are arranged in an array on the inclined plate 222.

[0050] Since the chassis of the automobile is easy to generate high temperature in hot summer or long-time high-speed driving, the hardness, toughness and other properties of the primer adhesive can change in the high-temperature environment, thereby affecting the stone impact prevention effect. By setting the plurality of ceramic heating sheets 2222, the heating of the inclined plate 222 can be realized, and then the heat is transmitted to the test sample plate through the inclined plate 222, so as to simulate the high-temperature environment, and then simulate the wear of the primer adhesive when the automobile drives in the high-temperature environment, so that the test device can more comprehensively simulate the real use scene. The inclined plate 222 and the test sample plate can be made of metal material, and the plurality of ceramic heating sheets 2222 arranged in an array can realize the uniform heating of the test sample plate.

[0051] Specifically, the top of the collection box 21 is provided with a material falling opening 211.

[0052] By setting the dropping opening 211 on the top of the collection box 21, the test material falling from the dropping channel can fall on the test sample plate surface through the dropping opening 211, and the test material falling from the test sample plate surface is collected at the bottom of the collection box 21.

[0053] Preferably, an avoiding opening can also be set on a side wall of the collection box 21, which can facilitate the translation of the dropping pipe 141 into and out of the collection box 21 through the avoiding opening when the setting height of the dropping pipe 141 is low (at this time, the bottom end of the dropping pipe 141 can pass through the dropping opening 211 into the collection box 21), and at this time, the inclined plate 222 can be directed towards the side wall of the collection box 21 without setting the avoiding opening, so as to avoid the test material falling from the inclined plate 222 from falling out of the avoiding opening. Specifically, cold iron gravel and JIS B-1181 brass M-4 hexagonal nuts can be used as test materials.

[0054] Further, the test device further comprises a transfer frame 3, the top of the transfer frame 3 is open, the transfer frame 3 is placed on the first bottom plate 11, and the top of the transfer frame 3 is provided with a flow guide opening 31.

[0055] By setting the transfer frame 3, the test material such as gravel and nuts falling into the collection box 21 can be manually cleaned and transferred to the transfer frame 3, and then the test material such as gravel and nuts in the transfer frame 3 is poured back into the dropping funnel 142, so as to facilitate the test again. By setting the flow guide opening 31 on the top of the transfer frame 3, the test material in the transfer frame 3 can be poured into the dropping funnel 142 from the flow guide opening 31.

[0056] Further, the dropping assembly 1 further comprises a connecting rod 15 and a fastener 16, the connecting rod 15 is horizontally set, one end of the connecting rod 15 is fixedly connected with the supporting rod 13, the other end of the connecting rod 15 is provided with a fixing ring 151, the fixing ring 151 is provided with a through hole 1511 penetrating in the vertical direction, the through hole 1511 is for the dropping pipe 141 to pass through, and the side wall of the fixing ring 15 is provided with a mounting hole 1512, the fastener 16 passes through the mounting hole 1512 to mount the dropping pipe 141 to the fixing ring 151.

[0057] By setting the connecting rod 15, the blanking pipe 141 is inserted into the fixed ring 151, after adjusting the height of the blanking pipe 141, the fastener 16 is used to pass through the mounting hole 1512, the blanking pipe 141 is fixedly installed on the fixed ring 151, thereby realizing that the blanking pipe 141 is detachably installed on the support rod 13, the height of the blanking pipe 141 is conveniently adjusted, and the blanking pipe 141 with different inner diameters is conveniently fixed. Specifically, the fastener 16 is a screw.

[0058] Preferably, the connecting rod 15 is provided with a plurality of connecting rods 15, and the fixed rings 151 of the plurality of connecting rods 15 are correspondingly arranged along the length direction of the support rod 13.

[0059] By setting a plurality of connecting rods 15, the blanking pipe 141 can be fixed from the length direction, improving the installation stability of the blanking pipe 141. When the blanking pipe 141 needs to be installed, the blanking pipe 141 is aligned with a plurality of fixed rings 151, and is inserted into the fixed rings 151 from top to bottom one by one, and finally the fastener 16 is used to fixedly install the blanking pipe 141 on the fixed ring 151.

[0060] Preferably, the diameter of the discharge end of the blanking funnel 142 is smaller than the diameter of the blanking passage, and the discharge end of the blanking funnel 142 is inserted into the blanking passage.

[0061] By inserting the discharge end of the blanking funnel 142 into the blanking passage, the test materials such as sand and nuts in the blanking funnel can smoothly enter the blanking passage, avoiding falling out from the connection between the blanking funnel 142 and the blanking passage.

[0062] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations herein, those skilled in the art can conceive other specific embodiments of the present application without creative labor, and these embodiments will fall within the scope of protection of the present application.

Claims

1. A test device for simulating impact wear of an automotive basecoat, characterized in that The test device comprises a blanking assembly and a test mounting assembly. The blanking assembly comprises a first bottom plate, a base, a support rod and a blanking device. The test mounting assembly comprises a collecting box and a mounting bracket. The collecting box is arranged on the upper surface of the first bottom plate.

2. The test device for simulating impact wear of an undercoating of an automobile according to claim 1, wherein The mounting bracket comprises a second bottom plate, an inclined plate and an angle adjusting rod.

3. The test device for simulating impact wear of an undercoating of an automobile according to claim 1, wherein The inclined plate is used for fixing a test template. The second bottom plate is provided with a plurality of angle adjusting grooves on the end surface facing the inclined plate. The angle adjusting rod is inserted into the angle adjusting groove. The mounting bracket further comprises a clamping block, a guide rod, a spring and a rod head.

4. The test apparatus for simulating impact wear of an undercoating for an automobile according to claim 3, wherein The inclined plate is provided with a guide hole.

5. The test device for simulating impact wear of an undercoating of an automobile according to claim 1, wherein The guide rod is connected with the clamping block.

6. The test device for simulating impact wear of an undercoating of an automobile according to claim 1, wherein The spring is sleeved on the outer surface of the guide rod.

7. The test device for simulating impact wear of an automotive basecoat according to claim 1, wherein The clamping block is arranged on the upper part of the inclined plate.

8. The test device for simulating impact wear of an automotive basecoat according to claim 1, wherein The inclined plate is provided with a plurality of ceramic heating sheets.

9. The test apparatus for simulating impact wear of an automotive basecoat according to claim 8, wherein The collecting box is provided with a blanking opening on the top.

10. The test device for simulating impact wear of an automotive basecoat according to claim 1, wherein The test device further comprises a transfer frame. The blanking assembly further comprises a connecting rod and a fastener. The connecting rod is arranged in a plurality of pieces. The diameter of the outlet end of the blanking funnel is smaller than that of the blanking channel. The outlet end of the blanking funnel is inserted into the blanking channel.

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