A device for testing the mounting strength of an automobile electronic controller mounting ear

Abstract

The present specification discloses a kind of installation strength test device of automobile electronic controller mounting ear, comprising: base, the upper end of base is opened with two first recess track along first direction, and three second recess track along second direction, first direction is perpendicular to second direction;Wherein, the second recess track between adjacent two is hollow structure;Test bolt and at least one slider, the number of slider is same with the number of the mounting ear of measured automobile electronic controller;The lower end of slider is integrally provided with boss, and boss is embedded in first recess track or second recess track;The upper end of slider is opened with the test screw hole matched with test bolt;The lower end of boss is opened with a plurality of first threaded holes, and one height adjusting bolt is screwed in each first threaded hole;Support pad, support pad is arranged between slider and the mounting ear of measured automobile electronic controller.

Description

TECHNICAL FIELD

[0001] The utility model relates to device test technical field, specifically, relate to a kind of installation strength testing device of automobile electronic controller mounting lug. BACKGROUND

[0002] Automobile electronic controller (Electronic Controllor Unit, ECU) is the command center of whole vehicle, and its reliability restricts the reliability and driving safety of whole vehicle. To meet the lightweight design requirements of whole vehicle, the shell of automobile electronic controller is mostly made of high-molecular thermoplastic material, and the compression strength of mounting lug is limited, and too large installation torque can easily lead to deformation or cracking of automobile electronic controller mounting lug. Therefore, it is necessary to test the installation strength of automobile electronic controller mounting lug. In related schemes, one way is to use automatic torque testing equipment to accurately test the strength of automobile electronic controller mounting lug, but in this scheme, the equipment investment is large, the depreciation rate is high, and multiple people are needed to complete the test, so the test cost is high.

[0003] Therefore, it is necessary to provide a simple device to accurately test the installation strength of automobile electronic controller mounting lug. UTILITY MODEL CONTENT

[0004] The present specification provides a kind of installation strength testing device of automobile electronic controller mounting lug to overcome at least one technical problem in the related art.

[0005] According to the embodiment of the present specification, a kind of installation strength testing device of automobile electronic controller mounting lug is provided, comprising:

[0006] The upper end of the base is provided with two first groove tracks along the first direction, and three second groove tracks along the second direction, and the first direction is perpendicular to the second direction;Wherein, one end of each second groove track is communicated with the first first groove track, and the other end is communicated with the second first groove track, and the adjacent two second groove tracks are hollow structure, which provides the main body of the automobile electronic controller to be tested with the space for lowering;

[0007] Test bolt and at least one slider, the number of slider is same with the number of the mounting lug of the automobile electronic controller to be tested;The lower end of the slider is integrally provided with a boss, and the boss is embedded in the first groove track or the second groove track;The upper end of the slider is provided with test screw hole matched with test bolt;The lower end of the boss is provided with a plurality of first screw holes, one height adjusting bolt is screwed into each first screw hole, so as to adjust the distance between the top of the slider and the groove bottom of the corresponding groove track by adjusting the depth of the height adjusting bolt screwed into the corresponding first screw hole;

[0008] Supporting pads are arranged between the sliding block and the mounting ears of the automobile electronic controller to be tested.

[0009] In some optional embodiments, the two first groove tracks are parallelly arranged along the length direction at the upper end of the base, and the three second groove tracks are parallelly arranged along the width direction at the upper end of the base, and the groove depths of the first groove tracks and the second groove tracks are the same; the first first groove track starts from the vicinity of the first corner of the base and ends at the vicinity of the corner on the same side as the first corner; the second first groove track starts from the vicinity of the second corner of the base and ends at the vicinity of the corner on the same side as the second corner.

[0010] The first second groove track of the three second groove tracks starts from one end of the first first groove track and communicates with the second first groove track; the second second groove track of the three second groove tracks starts from the other end of the first first groove track and communicates with the second first groove track; and the third second groove track of the three second groove tracks starts from the middle position of the first first groove track and communicates with the second first groove track.

[0011] In some optional embodiments, the sliding block is a single-row sliding block, and a plurality of threaded holes are arranged at the middle position of the upper end of the single-row sliding block, and the hole diameters of any two threaded holes of the plurality of threaded holes are different.

[0012] In some optional embodiments, the sliding block is a double-row sliding block, and a plurality of threaded holes are arranged at the upper end of the double-row sliding block, and the hole diameters of any two threaded holes of the plurality of threaded holes are different.

[0013] In some optional embodiments, a supporting column is arranged at each of the four corners of the lower end of the base; the lower part of each supporting column is a supporting base arranged integrally, and the bottom of the supporting base is provided with an anti-skid silica gel pad.

[0014] In some optional embodiments, a plurality of reinforcing ribs are uniformly distributed on the surface of the column body of each supporting column along the axial direction, and the reinforcing ribs are integrally formed with the corresponding supporting column body.

[0015] In some optional embodiments, the column body part of the supporting column is a threaded rod, so as to be screwed and fastened with the threaded hole of the corresponding part of the base, and the height between the lower end of the base and the test table is adjusted by adjusting the depth of the threaded rod screwed into the threaded hole of the corresponding part.

[0016] In some alternative embodiments, the support pad is a flat pad or a rivet nut pad; the flat pad has a through hole in the middle for the test bolt to pass through and support the mounting ear of the automobile electronic controller to be tested; the rivet nut pad is used for the test bolt to pass through the opening of the rivet nut pad and support the mounting ear of the automobile electronic controller to be tested.

[0017] In some alternative embodiments, the gap between the boss and the inner wall of the corresponding groove track is between 0.1-0.3mm.

[0018] In some alternative embodiments, the four corners of the base are treated with rounded corners; the intersection of the first groove track and the corresponding staggered second groove track is transitioned with a round corner with a radius of 0.5-1cm.

[0019] The beneficial effects of the embodiments of the present specification are as follows:

[0020] 1. The groove tracks arranged perpendicular to each other and in communication on the base can provide a multi-dimensional sliding path for the slider, so that for mounting ears of different center distances, the stable support of the mounting ears can be realized by adjusting the sliding position of the slider, and thus the test requirements of automobile electronic controllers with various mounting ear layouts can be covered.

[0021] 2. The boss structure closely embedded in the groove track can strictly limit the linear sliding of the slider along the track, effectively preventing the twisting of the slider during testing, thereby ensuring the stable stress of the mounting ear during testing and improving the reliability and accuracy of the test data. At the same time, the hollow structure between adjacent second groove tracks can provide a space for the main body of the automobile electronic controller, adapt to the situation where the mounting ear is arranged above the middle of the controller, prevent interference and conflict between the main body of the automobile electronic controller and the device components during testing, ensure that the mounting ear can be tested in a natural and true state, enhance the authenticity and effectiveness of the test conditions, and ultimately improve the accuracy of the test results.

[0022] 3. The support pad is arranged between the slider and the mounting ear, which can ensure that the contact surface of the mounting ear is consistent with the contact surface of the real vehicle installation, so that the deformation, torque bearing and other conditions of the mounting ear during testing can truly reflect its performance in the real vehicle, and thus reliable data can be provided for the design and quality control of the automobile electronic controller.

[0023] 4. The height adjusting bolt is screwed into the first threaded hole at the lower end of the boss, and the other end is matched with the sliding block in the groove track, so that when the mounting ears are in different planes, the depth of the height adjusting bolt screwed into the first threaded hole can be accurately adjusted according to the height difference of the planes where the mounting ears are located, in this way, the height of each sliding block can be accurately matched with the mounting ears in different planes, ensuring that each mounting ear can be in the appropriate position during the test process, accurately simulating the actual installation state, and then effectively testing the strength of the mounting ears in the controller in different planes. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the related art, the drawings needed to be used in the embodiment or related art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 An exploded view of the mounting strength test device for the mounting ears of the automobile electronic controller provided by the present specification;

[0026] Figure 2 A structural schematic view of the base in the mounting strength test device for the mounting ears of the automobile electronic controller provided by the present specification;

[0027] Figure 3 A structural schematic view of the single-row sliding block in the mounting strength test device for the mounting ears of the automobile electronic controller provided by the present specification;

[0028] Figure 4 A structural schematic view of the double-row sliding block in the mounting strength test device for the mounting ears of the automobile electronic controller provided by the present specification;

[0029] Figure 5 A schematic view of the placement position of the automobile electronic controller when testing the mounting ears in non-same planes using the mounting strength test device for the mounting ears of the automobile electronic controller provided by the present specification;

[0030] Figure 6 A schematic view of the placement position of the automobile electronic controller when testing the mounting ears in the middle and above positions using the mounting strength test device for the mounting ears of the automobile electronic controller provided by the present specification.

[0031] Wherein, 1 represents the base, 2 represents the first groove track, 3 represents the second groove track, 4 represents the single row slider, 41 represents the first multi-type screw hole, 42 represents the first threaded hole, 43 represents the first boss, 5 represents the support column, 6 represents the double row slider, 61 represents the second multi-type screw hole, 62 represents the second threaded hole, 63 represents the second boss, 7 represents the plane pad, 8 represents the test bolt, 9 represents the height adjusting bolt, 10 represents the first automobile electronic controller, 101 represents the first mounting lug, 11 represents the second automobile electronic controller, 1101 represents the second mounting lug, 12 represents the riveting nut pad. DETAILED DESCRIPTION

[0032] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upper of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined lower of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the embodiment, the terms "upper", "lower", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0036] The embodiment provides a mounting strength testing device for an automobile electronic controller mounting lug, wherein recessed tracks perpendicular to each other are arranged in the testing device, and a sliding block can slide in the recessed tracks; after the position of the sliding block is adjusted according to the number and position characteristics of the mounting lug of the automobile electronic controller to be tested, the mounting strength of the mounting lug of the automobile electronic controller to be tested can be tested by using the testing device.

[0037] The following will be described in detail according to the accompanying drawings Figures 1 to 4 The structure of the mounting strength testing device for the automobile electronic controller mounting lug is described in detail. Among them, Figure 1 It is an exploded view of the mounting strength testing device for the automobile electronic controller mounting lug provided by the embodiment of the present application; Figure 2 It is a structural schematic view of the base in the testing device; Figure 3 It is a structural schematic view of a single-row sliding block used in the testing device; Figure 4 It is a structural schematic view of a double-row sliding block used in the testing device.

[0038] As shown in Figure 1 and Figure 2 , the mounting strength testing device comprises a base 1, two first recessed tracks 2 are formed in the upper end of the base 1 along a first direction, and three second recessed tracks 3 are formed along a second direction, and the first direction is perpendicular to the second direction; wherein one end of each second recessed track is connected with the first first recessed track, and the other end is connected with the second first recessed track, and the space between the adjacent two second recessed tracks is a hollow structure, which is used to provide a space for the main body of the automobile electronic controller to be tested, and is suitable for the case that the mounting lug is arranged at the position above the middle part of the controller, so as to prevent the main body of the automobile electronic controller from interfering with the device components during testing, ensure that the mounting lug can be tested in a natural and real state, enhance the authenticity and effectiveness of the test working condition, and finally improve the accuracy of the test result.

[0039] The mounting strength testing device further comprises a test bolt 8 and at least one sliding block, the number of the sliding blocks is the same as the number of the mounting lug of the automobile electronic controller to be tested; a boss is integrally arranged at the lower end of the sliding block, and the boss is embedded in the first recessed track 2 or the second recessed track 3; a test screw hole matched with the test bolt 8 is formed in the upper end of the sliding block; a plurality of first threaded holes are formed in the lower end of the boss, and a height adjusting bolt 9 is screwed into each first threaded hole, so as to adjust the distance between the top of the sliding block and the groove bottom of the corresponding recessed track by adjusting the depth of the height adjusting bolt screwed into the corresponding first threaded hole;

[0040] The installation strength testing device can further comprise a supporting pad provided between the sliding block and the mounting lug of the automobile electronic controller to be tested, and an opening is formed in the middle of the end face of the supporting pad to allow the test bolt 8 to pass through, so that the contact surface of the mounting lug of the automobile electronic controller to be tested is consistent with the contact surface of the actual vehicle installation.

[0041] In the technical scheme, the recessed tracks arranged perpendicularly and in communication on the base can provide a multi-dimensional sliding path for the sliding block, so that for mounting lugs with different center distances, stable support of the mounting lugs can be achieved by adjusting the sliding position of the sliding block, and thus the testing requirements of automobile electronic controllers with various mounting lug layouts can be covered. Meanwhile, the boss structure closely embedded in the recessed tracks can strictly limit the linear sliding of the sliding block along the tracks, and can effectively prevent the sliding block from being twisted during the test, so as to ensure the stable stress of the mounting lug during the test and improve the reliability and accuracy of the test data.

[0042] After the main structure of the installation strength testing device is introduced, the setting principles of some components in the device are described below.

[0043] Firstly, the reason why the hollow structure is arranged between the two adjacent second recessed tracks is described. Considering that the positions of the mounting lugs of the automobile electronic controller are different in actual scenarios, the mounting lugs can be located in the middle and above of the automobile electronic controller, so that during the test, if the controller body does not have enough space to be lowered, it can interfere with other components of the testing device. For example, it can squeeze the sliding block, the supporting column or other parts of the base, which can change the stress state of the mounting lug and make it unable to bear the test torque in a natural and real state. Therefore, only when the mounting lug of the automobile electronic controller to be tested is measured in a natural and undisturbed state, the strength data obtained by the test can accurately reflect its performance in actual application. In the technical scheme of the utility model, the hollow structure arranged between the two adjacent second recessed tracks can provide space for the controller body of the automobile electronic controller to be tested to be lowered.

[0044] Then the support pad between the upper end of the slider and the mounting ear of the automobile electronic controller under test is described. The purpose of testing the mounting strength of the mounting ear of the automobile electronic controller under test is to accurately determine whether it meets the performance indicators such as real vehicle installation torque requirements. Only when the contact surface is consistent, the deformation of the mounting ear during the test, the torque bearing and other conditions can truly reflect its performance in the real vehicle, thereby providing reliable data support for the design of automobile electronic controller, installation specification and quality control. Otherwise, there may be problems such as deviation of the mounting ear strength test results, and it is difficult to determine whether the mounting ear truly meets the customer's installation torque requirements, affecting the accurate evaluation of the performance of the mounting ear, and then possibly leading to the deformation or cracking of the mounting ear in actual application, affecting the reliability and safety of the vehicle. Considering these factors, the test device in the scheme includes a support pad arranged between the upper end of the slider and the mounting ear of the automobile electronic controller under test, which is used to make the contact surface of the mounting ear of the automobile electronic controller under test consistent with the real vehicle installation contact surface, so that the deformation of the mounting ear during the test, the torque bearing and other conditions can truly reflect its performance in the real vehicle, and then reliable data can be provided for the design of automobile electronic controller and quality control.

[0045] At the same time, in this scheme, the grooved tracks in the base 1 are perpendicular to each other and interconnected, and the principle of this design is described below.

[0046] Firstly, such a layout can adapt to mounting ears of various layouts. Specifically, the layout of the mounting ear of the automobile electronic controller is diverse, and the center distance may also be different. The perpendicular and interconnected grooved tracks provide a multi-dimensional sliding path (such as the first grooved track in the length direction and the second grooved track in the width direction) for the slider, and the slider can flexibly adjust the position by sliding in these tracks. No matter how the center distance of the mounting ear changes, a suitable support point can be found by adjusting the position of the slider on the tracks in different directions, so as to realize stable support and meet the test requirements of automobile electronic controllers with different mounting ear layouts, effectively solving the problem that the existing simple test device cannot adapt to mounting ears with different center distances.

[0047] Secondly, such a layout can ensure the stability of the slider during the test. Specifically, during the test, the slider needs to remain stable and cannot rotate or deviate arbitrarily, otherwise it will affect the stability of the force of the mounting ear and the accuracy of the test results. The vertical layout and interconnected design of the grooved tracks strictly limit the movement direction of the slider, so that it can only slide linearly along the track, effectively eliminating the possibility of twisting of the slider during the test, ensuring the stability and constant direction of the force of the mounting ear, providing a guarantee for accurate application and transmission of test torque, making the test data more reliable and accurate, and laying a solid foundation for accurate determination of the quality of the controller mounting ear.

[0048] Thirdly, the groove track layout reasonably plans the space on the base, can realize the multi-dimensional sliding function of the slider, and will not occupy too much space, so that the test device structure is compact. Meanwhile, in cooperation with other components such as support columns, sliders, support pads and the like, a functionally perfect and rationally laid-out overall structure of the test device is jointly built, and the space utilization and overall performance of the test device are improved.

[0049] The working principle of the installation strength test device for the mounting lug of the automobile electronic controller provided by the embodiment of the utility model will be described below.

[0050] Firstly, the slider positions are adjusted and the mounting lug of the automobile electronic controller to be tested is fixed. Specifically, the same number of sliders as the mounting lug of the automobile electronic controller to be tested are respectively placed in the groove tracks on the upper end of the base 1. The two first groove tracks along the length direction and the three second groove tracks along the width direction of the base 1 are perpendicular and connected to each other, the bosses integrally arranged at the lower end of the slider are embedded in these groove tracks, and the slider can adjust the position in different directions by sliding in the groove tracks, so as to adapt to the mounting lug with different center distances. For example, when the center distance of the mounting lug changes in the length direction or the width direction, the slider can slide to the appropriate position along the corresponding first groove track or second groove track, so as to realize the preliminary positioning and support of the mounting lug.

[0051] During the installation process, the test bolt is tightly abutted after being passed through the mounting lug, the opening of the support pad and the test screw hole arranged at the upper end of the slider. Finally, the torque wrench is used to slowly and uniformly apply torque to the test bolt, and the state of the mounting lug is monitored in real time during the application of torque, including observing whether the mounting lug is deformed, cracked or the like, and recording key data such as the initial torque, deformation at each stage and the final failure torque value.

[0052] The main content of the installation strength test device for the mounting lug of the automobile electronic controller provided by the utility model is introduced in the foregoing. In the real scene, according to different vibration levels, the installation position of the automobile electronic controller can be divided into special installation environments such as spring-on, spring-under and engine compartment, among which, the spring-on refers to the part above the suspension spring of the vehicle, for example, the vehicle body, the frame and the engine, the cab, the passenger compartment, the cargo box and other structures and components mounted on the frame all belong to the spring-on part. It is opposite to the spring-under, and the spring-under part such as the wheel, the axle and the connecting rod below the spring in the suspension system directly contacts the road surface and bears the impact force and vibration from the road surface. Different installation positions (spring-on, spring-under, engine compartment and the like) have different vibration levels, which determines different requirements for the strength and installation torque of the mounting lug of the automobile electronic controller, and further affects the design of the mounting lug strength test device, so as to ensure the reliable operation of the controller in the corresponding environment and protect the performance and safety of the whole vehicle.

[0053] In the above scenarios, there are cases where the mounting ears of the automotive electronic controller may not be in the same plane, or the mounting ears are located in the middle and above the controller.

[0054] First, the meaning of mounting ears not in the same plane is explained. In actual design and application, the mounting ears of the automotive electronic controller may not all be in the same plane. For example, some complex structure controllers, their mounting ears may be distributed on different height planes, this case is called mounting ears not in the same plane. This means that when performing strength test, how to accurately simulate the stress condition of mounting ears on different planes needs to be considered to ensure that the test results can reflect the true performance in actual use.

[0055] Compared with the case of mounting ears in the same plane, mounting ears not in the same plane face more challenges in testing. Since the force direction and size of each mounting ear may differ on different planes, the testing device needs to have corresponding adjustment ability to ensure that each mounting ear can be correctly stressed in its plane during torque application and other test operations, avoiding inaccurate test results due to the testing device's inability to adapt to such complex situations, affecting the evaluation of the strength of the mounting ears.

[0056] Then the meaning of mounting ears located in the middle and above the controller is explained, which refers to the position height of the mounting ears on the automotive electronic controller being in the middle and above region. In some automotive electronic controller designs, in order to meet specific installation requirements or space layout requirements, the mounting ears may be set in the higher position of the controller, even close to the top region. This position feature requires enough space below the controller body to be placed during testing to avoid interference with the test of the mounting ears. For such controllers with high mounting ear positions, the testing device must consider the placement space of the controller body. If the testing device does not provide enough space for the controller body, collisions or extrusions between the controller body and other parts of the testing device (such as the base, slider, etc.) may occur during testing, affecting the natural stress state of the mounting ears, resulting in test results that cannot accurately reflect the true strength of the mounting ears, and cannot effectively evaluate whether they meet the actual installation and use requirements.

[0057] The above-mentioned cases of mounting ears not in the same plane or mounting ears located in the middle and above the controller pose higher requirements on the design of the testing device and the testing process, and require reasonable structural design to ensure accurate testing of the strength of the mounting ears, to ensure the reliability and safety of the automotive electronic controller in actual application.

[0058] In view of the above, the test device provided by the application has a plurality of first threaded holes formed in the lower end of the boss, and a height adjustment bolt 9 is screwed into each first threaded hole, so as to adjust the distance between the top of the slider and the groove bottom of the corresponding groove track by adjusting the depth of the height adjustment bolt screwed into the corresponding first threaded hole. Since one end of the height adjustment bolt is screwed into the first threaded hole in the lower end of the boss, and the other end cooperates with the slider to slide in the groove track. When facing the controller with mounting ears on different planes, the depth of the height adjustment bolt screwed into the first threaded hole can be accurately adjusted according to the height difference between the planes where the mounting ears are located. For example, if there is a controller whose part of the mounting ears is higher than the plane where the other part of the mounting ears is located, the height adjustment bolt of the corresponding slider can be screwed out by a certain length, so that the height of the top of the slider from the groove bottom of the groove track is increased, thereby increasing the support height of the corresponding mounting ear; conversely, for the mounting ear on the lower plane, the height adjustment bolt can be screwed in to lower the height of the slider. In this way, the height of each slider can be accurately matched with the mounting ear on the different plane, so that each mounting ear can be in the appropriate position during the test, accurately simulating the actual vehicle installation state, and effectively testing the strength of the controller with mounting ears on different planes.

[0059] Based on the foregoing technical solutions, some more specific solutions are also provided below, which are described as follows.

[0060] In the optional embodiment technical solution, as shown in Figure 1 the two first groove tracks 2 are parallelly formed in the upper end of the base 1 along the length direction, and the three second groove tracks 3 are parallelly formed in the upper end of the base 1 along the width direction, and the groove depths of the first groove tracks and the second groove tracks are the same; wherein the first first groove track starts from the vicinity of the first corner of the base 1 and ends in the vicinity of the corner on the same side as the first corner; the second first groove track starts from the vicinity of the second corner of the base 1 and ends in the vicinity of the corner on the same side as the second corner;

[0061] the first second groove track of the three second groove tracks starts from one end of the first first groove track and communicates with the second first groove track; the second second groove track of the three second groove tracks starts from the other end of the first first groove track and communicates with the second first groove track; and the third second groove track of the three second groove tracks starts from the middle position of the first first groove track and communicates with the second first groove track.

[0062] In the optional embodiment technical solution, the slider can adopt a single-row slider 4 or a double-row slider 6. The upper end of the single-row slider 4 is provided with a plurality of threaded holes, and the hole diameters of any two threaded holes of the plurality of threaded holes are different. The upper end of the double-row slider 6 is provided with a plurality of threaded holes 61, and the hole diameters of any two threaded holes of the plurality of threaded holes are different.

[0063] As shown in Figure 3 The upper end of the single-row slider 4 is provided with a plurality of threaded holes 41, and the diameters of any two threaded holes are different. This design makes the single-row slider 4 have an advantage when dealing with automobile electronic controllers with large center-to-side wall spacing and relatively simple installation requirements. When the mounting ear spacing is large, the single-row slider with different diameter threaded holes can be more flexible in selecting the appropriate position to connect with the mounting ear. By adjusting the position in the groove track, it can better adapt to the layout of the large spacing mounting ear and ensure the stable connection between the mounting ear and the slider during testing, thereby realizing accurate testing of the strength of the mounting ear.

[0064] As shown in Figure 4 The upper end of the double-row slider 6 is provided with a plurality of threaded holes 61, and the diameters of any two threaded holes are different. For controllers with small center-to-side wall spacing, the double-row slider can provide more connection options. Due to the small spacing, a more compact screw hole layout may be required to ensure effective connection with the mounting ear. The double-row screw hole design can provide multiple diameter connection methods in limited space to meet the fixing requirements of mounting ears of different sizes. At the same time, the sliding of the slider in the groove track can also adapt to mounting ears with different center distances within a certain range, so that the test device can reliably test the mounting ears of such controllers.

[0065] In addition to the differences in spacing and layout, the structure of the mounting ear itself may also be different, and different types of connection methods are required to ensure the accuracy and reliability of the test. The threaded holes of different diameters on the single-row slider and the double-row slider can adapt to mounting bolts or nuts of various sizes, so that whether it is a standard size or a special size mounting ear connection structure, the appropriate connection method can be found in these two sliders, so that the test device can adapt to various complex structure mounting ear tests, and improve the compatibility of the test device for different types of automobile electronic controllers.

[0066] In the test, according to the specific situation of the mounting ear of the automobile electronic controller to be tested, a suitable single row slider 4 or double row slider 6, or a combination of the two, can be selected. The single row slider 4 or double row slider 6 is placed in the groove track 2 and 3 of the base 1 respectively, and the single row slider 4 or double row slider 6 is limited to slide in a certain direction in the groove track 2 and 3, so as to ensure that the slider does not rotate during the mounting ear strength test, and then the mounting ear is fixed. The same test bolt 8 as the flange surface of the real vehicle is connected with the slider threaded hole 41 or 61, and the torque wrench is used to apply torque to the test bolt 8 to complete the automobile electronic controller mounting ear strength test. For the automobile electronic controller 9 with mounting ears in different planes, the single row slider 4 or double row slider 6 can be combined with the height adjusting bolt 9, and the height of the slider can be adjusted by adjusting the depth of the height adjusting nut 3, and the height adjusting bolt 9 is placed in the groove track 2 and 3 to complete the mounting ear strength test; for the automobile electronic controller 10 with mounting ears in the middle and above the position of the automobile electronic controller, the controller can be placed between the groove tracks 2 or 3, and then the automobile electronic controller mounting ear strength test is completed; for the controller with small distance between the mounting ear center and the shell side wall, the double row slider 6 can be used to complete the test.

[0067] The meaning of the "shell side wall" mentioned in the foregoing is explained as follows: The automobile electronic controller usually has a certain shape and structure, and its shell is used to protect the internal electronic elements and circuit. The shell side wall is the part that constitutes the side of this shell, which together with the top, bottom and other faces of the controller forms a complete shell. These side walls can be flat, or can have certain curvature or shape changes. The distance relationship between the mounting ear and the shell side wall is one of the reference bases for selecting a single row slider or a double row slider. In the technical solution of the embodiment, two types of sliders, i.e. single row sliders and double row sliders, are provided to adapt to the testing needs of mounting ears under different shell side wall distances, and to ensure the accuracy and reliability of the test.

[0068] In the optional embodiment technical solution, four support columns 5 can be respectively arranged at the four corners of the lower end of the base 1; the lower part of each support column 5 is an integrally arranged support base, and the bottom of the support base can be provided with an anti-skid silica gel pad.

[0069] In the present scheme, the four support columns 5 arranged at the four corners of the lower end of the base 1 can be used to support the weight and external force borne by the base 1 and the entire test device during the test. To meet the strength requirement, the support columns 5 need to have a suitable diameter to prevent them from being broken or deformed due to being too thin. The size of the support columns 5 can be determined according to the overall layout and stability requirement of the test device. A suitable diameter can ensure that the support columns have sufficient strength to support the weight and external force borne by the base and the entire test device during the test, preventing the support columns from being broken or deformed due to being too thin. The height needs to meet the height requirement of the test device in different use scenarios. For example, when it is necessary to test mounting ears at a high position or cooperate with other equipment, a support column with sufficient height can provide a suitable height space to ensure the convenience of test operation.

[0070] Considering that the installation of the ear will generate a reaction force when the test is performed, the anti-slip silica gel pad arranged at the bottom of the support base can be closely attached to the placement table by its own friction characteristics, preventing the support column from sliding. At the same time, the elastic silica gel pad can absorb and disperse the test impact force, reducing the stress concentration phenomenon on the support column and the table, avoiding damage to the components due to hard collision, and prolonging the service life of the device. At the same time, the anti-slip silica gel pad can also play a buffering role, reducing the wear and damage of the test device to the test table. At the same time, during the test, especially when a large torque is applied to the mounting ear, the anti-slip silica gel pad can prevent the support column from sliding due to the reaction force, ensuring that the entire test device remains stable, thereby ensuring the accuracy of the test results.

[0071] In the optional embodiment, the surface of the column body of each support column 5 can be uniformly distributed with a plurality of reinforcing ribs, which are integrally formed with the corresponding support column 5 body.

[0072] From a mechanical perspective, considering that the installation of the ear will generate a complex force distribution during the test, such as when a torque is applied to the mounting ear of the automobile electronic controller, some lateral forces or unbalanced forces may be generated, which will be transmitted to the support column through the sliding block, the base, and the support column. In the present scheme, a plurality of aluminum alloy reinforcing ribs can be uniformly distributed in the axial direction of the column body, which are integrally formed with the column body, can enhance the overall structure, improve the bending strength of the support column, effectively resist lateral forces and bending moments, and prevent the column body from bending and deforming, resulting in test misalignment.

[0073] In the optional embodiment, the column body part of the support column 5 can adopt a threaded rod, which is screwed and fastened with the threaded hole of the corresponding part of the base 1. The height between the lower end of the base 1 and the test table can be adjusted by adjusting the depth of the threaded rod screwed into the threaded hole of the corresponding part.

[0074] In the technical solution of the embodiment, the height of the base can be flexibly and accurately adjusted according to test requirements by screwing the threaded rod into the corresponding threaded hole of the base, so as to meet the requirements of different specifications of automobile electronic controllers and test scenes. When the test mounting ear position is high or needs to be matched with other equipment, the height of the base can be conveniently changed by rotating the threaded rod, so as to realize fine adjustment with high precision and ensure the adaptability and operation convenience of the test device.

[0075] Considering that the installation positions of automobile electronic controllers are various according to different vibration levels, such as on the spring, under the spring, in the engine compartment, etc., the installation planes of different positions of the real vehicle are different. By using methods such as simulating the installation plane of the real vehicle with a plane pad block and riveting a nut pad block with the same size as the riveting nut of the real vehicle, appropriate pad blocks can be selected according to the real vehicle installation environment of the automobile electronic control during testing, so as to ensure that the contact surface of the mounting ear is consistent with the installation contact surface of the real vehicle, thereby enabling the test device to adapt to multiple types of installation planes of the real vehicle and meet the test requirements of the mounting ear of the automobile electronic controller in different installation environments.

[0076] Therefore, in the optional embodiment technical solution, the support pad block can be a plane pad block 7 or a riveting nut pad block 12. The plane pad block 7 is provided with a through hole in the middle position, and the through hole is used to support the mounting ear of the automobile electronic controller to be tested after the test bolt 8 passes through. The riveting nut pad block 12 is used to support the mounting ear of the automobile electronic controller to be tested after the test bolt 8 passes through the opening of the riveting nut pad block 12.

[0077] In the present solution, the plane pad block 7 is used to simulate the installation plane of the real vehicle, which is suitable when the installation plane of the real vehicle is relatively flat. The riveting nut pad block is consistent in size with the riveting nut of the real vehicle and is used to simulate the installation condition of the riveting nut in the real vehicle, so as to ensure that the contact surface of the mounting ear is consistent with the installation contact surface of the real vehicle. By preparing multiple types or specifications of these pad blocks and replacing them according to actual test requirements, multiple types of installation planes of the real vehicle can be adapted, so that the test environment is closer to the real installation condition. That is, according to the real vehicle installation environment of the automobile electronic control, a plane pad block 7 or a riveting nut pad block 12 is added between the mounting ear and the slider, so as to ensure that the contact surface of the mounting ear is consistent with the installation contact surface of the real vehicle, and multiple types of installation planes of the real vehicle can be adapted by replacing the riveting nut pad block 7 or the plane pad block 12.

[0078] In the optional embodiment technical solution, the gap between the boss and the inner wall of the corresponding groove track can be between 0.1-0.3 mm, so that the slider does not shake or jam when sliding in the corresponding groove track.

[0079] In the technical scheme of the embodiment, if the gap between the convex platform and the groove track is too large, the stability of the sliding block in the groove track will decrease, the sliding block is easy to deviate and shake under the action of a small external force or vibration during testing, the mounting lug is subjected to uneven force, and the strength test accuracy is affected. On the contrary, if the gap is too small, the sliding block is easy to move slowly or even be stuck. To solve the problem, the gap between the convex platform and the inner wall of the corresponding groove track is predetermined in the scheme, and the gap can be set to be between 0.1-0.3 mm, so that the sliding block does not shake or be stuck when sliding in the corresponding groove track. In the scheme, the small gap between 0.1-0.3 mm can provide a moderate space for the sliding block to slide in the groove track, ensure smooth operation without lag, and the operator can easily and accurately position the sliding block, and the sliding block is stable during testing.

[0080] In the optional embodiment, the four corners of the base 1 can be treated by rounding the corners; the intersection of the first groove track and the corresponding second groove track with staggered relationship can be transitioned by a round corner, and the radius of the round corner can be 0.5-1 cm.

[0081] In the technical scheme of the embodiment, considering that the tester may collide with the corners of the base by accident during the operation and use of the testing device, the sharp degree of the corners can be effectively reduced by rounding the corners, and the risk of causing harm to the human body when colliding is reduced. At the same time, when the sliding block slides along the groove track and passes through the intersection, if the transition is a right angle, the convex platform of the sliding block may be subjected to a large resistance, or even be stuck. The round transition can make the sliding block change direction more smoothly when passing through the intersection, reduce the increase of friction caused by the sudden change of the track structure, ensure that the sliding block can smoothly switch and slide between the groove tracks with different directions, and improve the convenience and efficiency of the test operation.

[0082] Finally, two effect diagrams of testing the mounting strength of the mounting lug by using the testing device provided by the utility model are provided, Figure 5 A placement position diagram of the automobile electronic controller when the testing device is used to test the mounting lug in a non-same plane; Figure 6 A placement position diagram of the automobile electronic controller when the testing device is used to test the mounting lug in a middle and above position.

[0083] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. An installation strength testing device for an automobile electronic controller mounting ear, characterized by, The base (1) is provided with two first groove tracks (2) at the upper end thereof in a first direction and three second groove tracks (3) in a second direction, the first direction being perpendicular to the second direction; one end of each of the second groove tracks is in communication with the first first groove track, and the other end is in communication with the second first groove track; the space between any two adjacent second groove tracks is hollowed out to provide a space for placing the main body of the automobile electronic controller to be tested; a test bolt (8) and at least one sliding block, the number of the sliding blocks being the same as the number of the mounting ears of the automobile electronic controller to be tested; the lower end of the sliding block is integrally provided with a boss, which is embedded in the first groove track (2) or the second groove track (3); the upper end of the sliding block is provided with a test screw hole matched with the test bolt (8); the lower end of the boss is provided with a plurality of first threaded holes, and a height adjusting bolt (9) is screwed into each first threaded hole to adjust the distance between the top of the sliding block and the groove bottom of the corresponding groove track by adjusting the depth to which the height adjusting bolt is screwed into the corresponding first threaded hole; a support pad is arranged between the sliding block and the mounting ear of the automobile electronic controller to be tested. The two first groove tracks (2) are parallel to the length direction of the base (1) at the upper end thereof, and the three second groove tracks (3) are parallel to the width direction of the base (1) at the upper end thereof; the groove depth of the first groove track is the same as that of the second groove track; the first first groove track starts near the first corner of the base (1) and ends near the corner on the same side as the first corner; the second first groove track starts near the second corner of the base (1) and ends near the corner on the same side as the second corner; 2. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 1, characterized by, the first second groove track of the three second groove tracks starts after the one end of the first first groove track and is in communication with the second first groove track; the second second groove track of the three second groove tracks starts after the other end of the first first groove track and is in communication with the second first groove track; the third second groove track of the three second groove tracks starts after the middle position of the first first groove track and is in communication with the second first groove track. The sliding block is a single-row sliding block (4), and a plurality of threaded holes are formed in the middle position of the upper end of the single-row sliding block (4); the hole diameters of any two threaded holes in the plurality of threaded holes are different.

3. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 1, characterized by, The sliding block is a double-row sliding block (6), and a plurality of threaded holes (61) are formed in the upper end of the double-row sliding block (6); the hole diameters of any two threaded holes in the plurality of threaded holes are different.

4. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 1, characterized by, A support column (5) is arranged at each of the four corners of the lower end of the base (1); the lower part of each support column (5) is integrally provided with a support base, and the bottom of the support base is provided with an anti-skid silica gel pad.

5. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 1, characterized by, A plurality of reinforcing ribs are uniformly distributed on the surface of the column body of each support column (5) in the axial direction, and the reinforcing ribs are integrally formed with the corresponding support column (5) body.

6. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 5, characterized by, ​ 7. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 5, characterized by, The column part of the support column (5) is a threaded rod, which is screwed and fastened with the threaded hole of the corresponding part of the base (1), and the height between the lower end of the base (1) and the test table is adjusted by adjusting the depth of the threaded rod screwed into the threaded hole of the corresponding part.

8. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 1, characterized by, The support pad is a flat pad (7) or a riveted nut pad (12); the middle position of the flat pad (7) is provided with a through hole for supporting the mounting ear of the automobile electronic controller to be tested after the test bolt (8) passes through; the riveted nut pad (12) is used to support the mounting ear of the automobile electronic controller to be tested after the test bolt (8) passes through the opening of the riveted nut pad (12).

9. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 1, characterized by, The gap between the boss and the inner wall of the corresponding groove track is between 0.1-0.3mm.

10. The mounting strength testing device for an automobile electronic controller mounting ear according to claim 1, characterized by, The four corners of the base (1) are treated with rounded corners; the intersection of the first groove track and the corresponding second groove track with staggered relationship is transitioned with a round corner, and the round corner radius is 0.5-1cm.

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