CN120008855A - A mechanical strength testing device and a testing method for an automobile instrument panel - Google Patents
A mechanical strength testing device and a testing method for an automobile instrument panel Download PDFInfo
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- CN120008855A CN120008855A CN202510266277.7A CN202510266277A CN120008855A CN 120008855 A CN120008855 A CN 120008855A CN 202510266277 A CN202510266277 A CN 202510266277A CN 120008855 A CN120008855 A CN 120008855A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明涉及汽车仪表板机械强度测试技术领域，具体公开了一种汽车仪表板机械强度测试装置及测试方法，包括底座和支撑架，所述底座的上方设置测试组件，测试组件用于对本体进行机械强度测试，还包括送料槽，所述送料槽固定连接在所述底座的顶部，所述送料槽位于两个所述支撑架之间，所述送料槽用于承载本体，让本体能够在送料槽内前后滑动；移动组件，所述移动组件用于带动所述本体在送料槽的内部移动，使本体的各个部分能够被挤压块挤压。通过移动可以对本体在送料槽内滑动，使测试组件能够对本体的不同位置进行施压，从而检测出本体上各个位置的耐压强度，从而使最终的检测结果更加准确。
The present invention relates to the technical field of automobile instrument panel mechanical strength testing, and specifically discloses an automobile instrument panel mechanical strength testing device and testing method, comprising a base and a support frame, a test assembly is arranged above the base, and the test assembly is used to perform a mechanical strength test on a body, and also comprises a feed trough, the feed trough is fixedly connected to the top of the base, the feed trough is located between two of the support frames, the feed trough is used to carry the body, and the body can slide back and forth in the feed trough; a moving assembly, the moving assembly is used to drive the body to move inside the feed trough, so that various parts of the body can be squeezed by an extrusion block. The body can slide in the feed trough by moving, so that the test assembly can apply pressure to different positions of the body, thereby detecting the compressive strength of various positions on the body, so that the final test result is more accurate.
Description
Technical Field
The invention relates to the technical field of mechanical strength test of automobile instrument panels, in particular to a mechanical strength test device and a mechanical strength test method of an automobile instrument panel.
Background
The utility model provides an automobile instrument mechanical strength testing arrangement is a special equipment that is used for testing automobile instrument mechanical strength, and its theory of operation is:
the instrument board is arranged on the test bench, so that the instrument board is ensured to be stably and accurately fixed at the test position;
The height of the impact block is adjusted, so that the impact distance between the impact block and the instrument board meets the test requirement;
the impact block performs impact test on the instrument panel and records related test data;
In the prior art, when mechanical strength test is performed on an automobile instrument panel, strength test can be performed on a single position generally, so that the overall strength test result of the instrument panel is not representative, for example, a pressure tester for automobile engineering disclosed in prior art publication No. CN209878337U is characterized in that a steel plate to be tested is placed on a base, a hydraulic cylinder is started to push down a first sliding block, and meanwhile, the first sliding block presses a spring and drives a second sliding block to move downwards, so that a guard plate fixed on the second sliding block moves downwards to prop against the upper surface of the steel plate, and then the hydraulic cylinder continuously pushes the first sliding block downwards to compress the spring, the second sliding block and the guard plate fixed on the second sliding block cannot move, the first sliding block pushes a transmission rod, and the steel plate is pressed by a pressing block fixed at the lower end of the transmission rod to perform pressure test;
when a plurality of positions of the instrument panel are required to be detected, the whole clamp is required to be adjusted, so that the detected positions of the instrument panel are required to be adjusted, and the operation mode is complex and needs to be improved.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The invention provides a device and a method for testing mechanical strength of an automobile instrument board, which can solve the problem that the prior art is inconvenient to test all positions of a body, and specifically adopts the following scheme:
in one aspect, the invention provides an automobile instrument board mechanical strength testing device, which comprises a base and a supporting frame, wherein a testing component is arranged above the base and used for testing mechanical strength of a body, and the device further comprises:
the feeding groove is fixedly connected to the top of the base, the feeding groove is positioned between the two supporting frames, and the feeding groove is used for bearing the body, so that the body can slide back and forth in the feeding groove;
The moving assembly is used for driving the body to move in the feeding groove so that all parts of the body can be extruded by the extrusion block;
the sealing cavity is arranged in the base and is positioned below the feeding groove;
the air outlet hole is formed between the bottom of the inner wall of the feeding groove and the sealing cavity, and the feeding groove is communicated with the sealing cavity through the air outlet hole;
The air pump, air pump fixed mounting is in the inside of base, the top of air pump is provided with two gas outlets, and first trachea is installed to the tip joint of one of them gas outlet, first trachea extends to the inside in sealed chamber, when the air pump starts, first trachea exhaust high-pressure gas can get into sealed chamber, when the bottom of body and the inner wall bottom contact of feed tank, under the effect of sealing washer, the bottom of body blocks up the venthole, makes the gas in the sealed chamber unable discharge.
Preferably, the test assembly comprises:
The top of the lower pressing plate is fixedly connected with a top plate, two ends of the top plate are provided with sliding blocks matched with the inner side of the support frame in shape, and the sliding blocks are in sliding connection with the inner side of the support frame;
The pressure sensor is arranged below the lower pressing plate;
the extrusion block is fixedly connected to the bottom of the pressure sensor;
the hydraulic rod is fixedly arranged at the top of the top plate;
the hydraulic pressure control device comprises a hydraulic rod, a lower pressing block, a sliding groove, a lower pressing block and a sliding groove, wherein the lower pressing block is fixedly connected to the bottom telescopic end of the hydraulic rod, the bottom of the lower pressing block is fixedly connected with the top of the pressure sensor, the sliding groove is formed in the middle of the lower pressing block, and the lower pressing block is in sliding connection with the inner portion of the sliding groove.
Preferably, the method further comprises:
the air pressure sensor is fixedly arranged on the inner wall of the sealing cavity, and one end of the air pressure sensor is connected with a signal wire;
When the mechanical strength of the body is tested, the air pressure in the sealing cavity is kept at a fixed value through the air pump, then the body is subjected to extrusion test, and the compressive mechanical strength of the body can be judged in the process of gradually increasing the downward pressure until the extrusion block causes penetration damage to the body, then the air in the sealing cavity is rapidly discharged, and the air pressure sensor detects that the air pressure in the sealing cavity is rapidly reduced.
Preferably, the method further comprises:
the lower pressing column is arranged above the body;
the fixing seat is fixedly connected to the top of the base, the lower pressing column is slidably arranged on the top of the fixing seat, and a spring is connected between the top end of the lower pressing column and the top of the fixing seat;
the rollers are arranged at two ends of the lower pressing column, the bottoms of the rollers are in contact with the top of the body, and the springs pull the lower pressing column downwards, so that the rollers at the bottoms of the lower pressing column can be pressed on the top of the body;
The clamp is arranged at one end of the body, far away from the pressing column, and can slide the body in the feeding groove.
Preferably, the method further comprises:
The sliding groove is fixedly connected to the top of the base;
The two ends of the screw are rotatably arranged at the two ends of the chute;
the sliding block is fixedly connected to the bottom of the clamp, the sliding block is in sliding connection with the sliding groove, the middle of the sliding block is in threaded connection with the screw rod, and when the screw rod rotates, the sliding block can be driven to slide in the sliding groove.
Preferably, the method further comprises:
The clamping groove is formed in one end, close to the body, of the clamp;
The screw thread post has two, two screw thread post threaded mounting respectively is at the upper and lower both ends of centre gripping groove, two the adjacent one end fixedly connected with grip block of screw thread post, after two screw thread post are close to each other, two grip blocks also can be close to each other to the one end with the body is cliied.
Preferably, the method further comprises:
The first gears are respectively fixedly connected to one ends of the two threaded columns, which are far away from each other;
the two second gears are rotatably arranged at the upper end and the lower end of the clamp, and are respectively meshed with the two first gears;
The two third gears are fixed together through a rotating shaft, are rotationally connected with one end of the clamp through rotation, and are meshed with the two second gears respectively;
The first motor is fixedly installed at one end of the clamp, a fourth gear is connected to the top output end of the first motor, and the fourth gear is meshed with one of the third gears.
Preferably, the method further comprises:
The output end of the second motor is fixedly connected with one end of the screw rod, and the second motor can drive the screw rod to rotate.
Preferably, the method further comprises:
The motor case is fixedly connected to the inside of the sealing cavity, the second motor is fixedly arranged at the bottom of the inner wall of the motor case, one end of the motor case is provided with an air hole, and the air hole is communicated with the inside of the sliding groove;
the air outlet of the other air pump is arranged at one end of the second air pipe, and the other end of the second air pipe is connected with one end of the motor box and communicated with the interior of the motor box.
On the other hand, the invention provides a method for testing the mechanical strength of an automobile instrument board, which comprises the following steps:
S1, placing a body to be detected in a feeding groove;
s2, the moving assembly drives the body to slide in the feeding groove, and different positions of the body are detected;
s3, the testing assembly presses the top of the body, and the applied pressure is sequentially increased;
s4, injecting gas into the sealing cavity by the air pump, and keeping the air pressure in the sealing cavity at a fixed value;
s5, driving the body to move in the feeding groove through the moving assembly, and pressing different positions of the body;
S6, when the gas in the sealing cavity is exhausted, the body can be judged to be broken in a penetrating mode, the applied pressure of the current testing assembly is recorded, and the mechanical strength of the body can be judged.
Compared with the prior art, the invention has at least one of the following beneficial effects:
1. The body can slide in the feeding groove through moving, so that the testing component can press different positions of the body, and therefore the compressive strength of each position on the body is detected, and the final detection result is more accurate.
2. Through utilizing the gas tightness in sealed chamber and the bottom of body to produce a sealed space, when the body is impacted and is produced and run through the damage after, the inside gas in sealed chamber is discharged, then detects the change of atmospheric pressure through the baroceptor to avoided the unable problem of correct discernment of the mode of prior art adoption camera lens discernment.
3. Through setting up down post and gyro wheel to let the body place after in the feed tank, through the power that produces the push down, let the body can be hugged closely the inner wall bottom slip of feed tank in the feed tank, thereby let the bottom of body and sealed space of formation between the chamber, make things convenient for follow-up through the damage of atmospheric pressure mode discernment body.
4. The body is subjected to extrusion test by adopting the free falling body and the hydraulic rod to drive the lower pressing block, so that the application range is wider compared with the prior art by adopting single free falling body impact test.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of a lower platen and pressure sensor of the present invention;
FIG. 3 is an exploded view of the lower platen and pressure sensor of the present invention;
FIG. 4 is a right side cross-sectional view of the present invention;
FIG. 5 is a perspective view of the body and the moving assembly of the present invention;
FIG. 6 is a bottom perspective view of the moving assembly of the body of the present invention;
FIG. 7 is a bottom perspective view of the body and clamp of the present invention;
FIG. 8 is a perspective view of the screw and clamp of the present invention;
FIG. 9 is a perspective view of a clamp of the present invention;
FIG. 10 is an exploded view of a portion of the structure of the clamp of the present invention;
FIG. 11 is a cross-sectional view of a base of the present invention;
Fig. 12 is a left side cross-sectional view of the present invention.
Wherein, the reference numerals are as follows:
101. Base, 102, supporting frame, 103, feeding groove, 104, lower pressing plate, 105, top plate, 106, pressure sensor, 107, extrusion block, 108, hydraulic rod, 109, lower pressing block, 110, sliding groove, 200, body, 301, lower pressing column, 302, fixing seat, 303, roller, 304, spring, 305, fixture, 3051, sliding block, 3052, clamping groove, 3053, screw column, 3054, first gear, 3055, second gear, 3056, third gear, 3057, first motor, 3058, fourth gear, 306, second motor, 307, screw, 308, air pump, 309, first air pipe, 310, sealing cavity, 311, air outlet hole, 312, air pressure sensor, 313, motor box, 314, air hole, 315, second air pipe, 316, sliding groove.
Detailed Description
Preferred embodiments of the present invention are described in detail below with reference to the attached drawing figures, which form a part of the present invention and are used in conjunction with the embodiments of the present invention to illustrate the principles of the present invention.
First embodiment as shown in fig. 1, the present embodiment provides a mechanical strength testing device for an automobile instrument panel, which can perform mechanical strength testing on a body 200, and includes:
A base 101;
The support frames 102 are fixedly connected to the top of the base 101, and the number of the support frames 102 is two;
The feeding groove 103 is fixedly connected to the top of the base 101, the feeding groove 103 is located between the two supporting frames 102, the feeding groove 103 is used for bearing the body 200, the body 200 can slide back and forth in the feeding groove 103, so that mechanical strength tests are carried out on different positions of the body 200, and the widest of the body 200 is located in the accommodating width range of the feeding groove 103;
the top of the lower pressing plate 104 is fixedly connected with a top plate 105, two ends of the top plate 105 are provided with sliding blocks matched with the inner side of the support frame 102 in shape, the sliding blocks are in sliding connection with the inner side of the support frame 102, the lower pressing plate 104 can freely fall, and when the lower pressing plate 104 moves freely, the two ends of the top plate 105 always slide with the inner side of the support frame 102;
As shown in fig. 2 and 3, the pressure sensor 106 is mounted below the lower pressure plate 104, the pressure sensor 106 is connected with a console (not shown in the drawings, and can be mounted on one side of the base 101 for processing detection data and displaying the data through a display, so that an operator can conveniently view the data), one side of the lower pressure plate 104 and one side of the top plate 105 are provided with wire outlet grooves, and the wires can be conveniently led out through the wire outlet grooves, so that the wires are connected with the console;
the extrusion block 107, the extrusion block 107 is fixedly connected to the bottom of the pressure sensor 106, the bottom of the extrusion block 107 is provided with a semicircular protruding block, and when the extrusion block 107 applies pressure to the body 200, the surface of the body 200 can be deformed;
a hydraulic rod 108, wherein the hydraulic rod 108 is fixedly installed on the top of the top plate 105;
The lower pressing block 109 is fixedly connected to the bottom telescopic end of the hydraulic rod 108, the bottom of the lower pressing block 109 is fixedly connected with the top of the pressure sensor 106, a sliding groove 110 is formed in the middle of the lower pressing plate 104, and the lower pressing block 109 is in sliding connection with the inside of the sliding groove 110;
In the above-described scheme, the following two detection methods are used for the main body 200:
Firstly, keeping the extension length of a hydraulic rod 108 fixed, keeping a lower pressing block 109 and a lower pressing plate 104 in a relatively fixed state, then adjusting the height of the lower pressing plate 104 to enable the lower pressing plate to fall freely, impacting a body 200, and then evaluating the mechanical strength of the body 200 by observing the damage degree caused by the impact of the body 200 under the lower pressing plates 104 with different falling heights;
Secondly, the lower pressure plate 104 is fixed at a specific height, then the hydraulic rod 108 is controlled by a hydraulic pump, the telescopic end of the hydraulic rod 108 drives the lower pressure block 109, the pressure sensor 106 and the extrusion block 107 to move downwards, the bottom end of the extrusion block 107 deforms the top of the body 200, and the maximum bearing pressure of the body 200 is tested by applying different lower pressures, so that the extrusion-resistant mechanical strength of the body 200 is obtained.
As shown in fig. 4, the mechanical strength testing device for an automobile instrument panel provided in this embodiment further includes:
The moving assembly is used for driving the body 200 to move in the feeding groove 103, so that each part of the body 200 can be extruded by the extrusion block 107, and the aim of detecting the extrusion resistance strength of each position of the body 200 is fulfilled;
A sealing cavity 310, which is arranged in the base 101, wherein the sealing cavity 310 is positioned below the feeding groove 103;
The air outlet hole 311 is formed between the bottom of the inner wall of the feeding groove 103 and the sealing cavity 310, the air outlet hole 311 communicates the feeding groove 103 with the sealing cavity 310, a sealing ring (not shown in the figure) is arranged around the air outlet hole 311, and the sealing ring is mounted at the bottom of the inner wall of the feeding groove 103 in a clamping manner;
The air pump 308 is fixedly arranged in the base 101, the top end of the air pump 308 is provided with two air outlets, the end part of one air outlet is clamped and provided with a first air pipe 309, the first air pipe 309 extends to the inside of the sealing cavity 310, when the air pump 308 is started, high-pressure air discharged by the first air pipe 309 can enter the sealing cavity 310, and when the bottom of the body 200 is contacted with the bottom of the inner wall of the feeding groove 103, the bottom of the body 200 is blocked by the air outlet hole 311 under the action of the sealing ring, so that the air in the sealing cavity 310 can not be discharged;
in the above scheme, when the mechanical strength test is required to be performed on the body 200, the body 200 is firstly placed in the feed chute 103, the body 200 is pressed in the feed chute 103 through the moving assembly, the air outlet hole 311 is blocked at the bottom of the body 200, at the moment, the extrusion block 107 is extruded towards the top of the body 200 under the extrusion action of the free falling body of the lower pressure plate 104 or the hydraulic rod 108, the extrusion force is sequentially increased from small to large, then the body 200 is slid by a certain distance through the moving assembly, so that the extrusion block 107 tests different positions of the body 200, and when the test position of the body 200 is changed, the distance between the last test position and the next test position is larger than the diameter of the air outlet hole 311;
the testing method can be that the single position of the body 200 is gradually pressurized until the body 200 is broken, so that the compressive strength of the position can be tested, and then the next position is tested;
or the different positions of the body 200 may be tested one by one, then the body 200 is moved by the moving assembly, and then the downward pressure is gradually increased to test the different positions of the body 200 step by step;
when the extrusion block 107 adopts a free falling manner to change extrusion force, the falling height of the lower pressure plate 104 is adjusted, and when the hydraulic rod 108 drives the extrusion block 107 to extrude the body 200, the extrusion force of the hydraulic rod 108 needs to be adjusted by the hydraulic pump;
because some special materials can not leave obvious marks after being impacted, the special materials are difficult to observe (such as black instrument board) in a visual identification mode or a human eye observation mode, so that in order to avoid the problem that the damaged position of the body 200 cannot be identified in the prior art through a lens identification observation mode, the problem can be avoided by the following scheme, and the scheme comprises:
the air pressure sensor 312, the air pressure sensor 312 is fixedly installed on the inner wall of the sealing cavity 310, one end of the air pressure sensor 312 is connected with a signal wire, and the signal wire is connected with the console;
when the mechanical strength of the body 200 is tested, the air pressure in the seal cavity 310 is kept at a fixed value by the air pump 308, then the body 200 is subjected to extrusion test, and in the process of gradually increasing the pressing force, the air in the seal cavity 310 is rapidly discharged until the extrusion block 107 causes penetration damage to the body 200, and the air pressure sensor 312 detects that the air pressure in the seal cavity 310 is rapidly reduced, so that the compressive mechanical strength of the body 200 can be judged.
As shown in fig. 5 and 6, the mechanical strength testing device for an automobile instrument panel provided in this embodiment further includes:
a lower pressing column 301, wherein the lower pressing column 301 is arranged above the body 200;
The fixing seat 302 is fixedly connected to the top of the base 101, the fixing seat 302, the lower pressing column 301 is slidably mounted on the top of the fixing seat 302, and a spring 304 is connected between the top of the lower pressing column 301 and the top of the fixing seat 302;
the rollers 303 are arranged at two ends of the pressing post 301, the bottom of the roller 303 is contacted with the top of the body 200, and the spring 304 pulls the pressing post 301 downwards, so that the roller 303 at the bottom of the pressing post 301 can be pressed on the top of the body 200;
A clamp 305, the clamp 305 being mounted at an end of the body 200 remote from the hold-down post 301, the clamp 305 being capable of sliding the body 200 within the chute 103;
The sliding groove 316, the sliding groove 316 is fixedly connected to the top of the base 101;
as shown in fig. 7 and 8, two ends of the screw 307 are rotatably mounted at two ends of the chute 316;
the sliding block 3051 is slidably connected with the sliding groove 316, the middle part of the sliding block 3051 is in threaded connection with the screw 307, and when the screw 307 rotates, the sliding block 3051 can be driven to slide in the sliding groove 316;
as shown in fig. 9 and 10, this embodiment provides a device for testing mechanical strength of an automobile instrument panel, which further includes:
a clamping groove 3052, wherein the clamping groove 3052 is formed at one end of the clamp 305 near the body 200;
The two threaded columns 3053 are provided, the two threaded columns 3053 are respectively arranged at the upper end and the lower end of the clamping groove 3052 in a threaded manner, the adjacent ends of the two threaded columns 3053 are fixedly connected with clamping plates, and when the two threaded columns 3053 are close to each other, the two clamping plates can be close to each other, so that one end of the body 200 is clamped;
the first gears 3054 are provided with two first gears 3054, and the two first gears 3054 are respectively fixedly connected to one ends of the two threaded columns 3053 which are far away from each other;
The second gears 3055, which have two, the two second gears 3055 are rotatably installed at the upper and lower ends of the fixture 305, and the two second gears 3055 are respectively engaged with the two first gears 3054;
The third gears 3056, which have two third gears 3056, wherein the two third gears 3056 are fixed together through a rotation shaft, the two third gears 3056 are rotationally connected with one end of the clamp 305 through rotation, and the two third gears 3056 are respectively meshed with the two second gears 3055;
A first motor 3057, the first motor 3057 is fixedly mounted at one end of the fixture 305, a fourth gear 3058 is connected to the top output end of the first motor 3057, and the fourth gear 3058 is meshed with one of the third gears 3056;
In the above scheme, when the body 200 needs to be clamped, the first motor 3057 drives the fourth gear 3058 to rotate, then the fourth gear 3058 drives the third gear 3056 to mesh, the two third gears 3056 synchronously rotate to drive the two second gears 3055 to simultaneously rotate, and finally the two second gears 3055 drive the two first gears 3054 to simultaneously rotate, as the directions of the threads of the two threaded columns 3053 connected with the two first gears 3054 are opposite, the two threaded columns 3053 can be driven to synchronously move away from or synchronously move close to each other through the forward and backward rotation of the first motor 3057, and when the two threaded columns 3053 synchronously move close to each other, the end part of the body 200 can be clamped, so that the clamping effect is achieved.
As shown in fig. 11 and 12, the mechanical strength testing device for an automobile instrument panel provided in this embodiment further includes:
the output end of the second motor 306 is fixedly connected with one end of the screw 307, and the second motor 306 can drive the screw 307 to rotate;
The motor box 313 is fixedly connected to the inside of the sealing cavity 310, the second motor 306 is fixedly arranged at the bottom of the inner wall of the motor box 313, one end of the motor box 313 is provided with an air hole 314, and the air hole 314 is communicated with the inside of the sliding groove 316;
A second air pipe 315, one end of the second air pipe 315 is installed at an air outlet of the other one of the air pumps 308, and the other end of the second air pipe 315 is connected to one end of the motor box 313 and communicates with the inside of the motor box 313;
in the above scheme, the air pump 308 injects high-pressure air into the motor case 313 from the second air pipe 315, so as to dissipate heat of the second motor 306, and finally the heat is discharged from the air holes 314, so as to achieve the effect of heat dissipation.
The second embodiment is different from the first embodiment in that the present embodiment provides a method for testing mechanical strength of an automobile instrument panel, including the following steps:
S1, placing a body 200 to be detected in a feed chute 103;
S2, the moving assembly drives the body 200 to slide in the feeding groove 103, and different positions of the body 200 are detected;
S3, the test assembly presses the top of the body 200, and the applied pressure is sequentially increased;
S4, injecting gas into the sealing cavity 310 by the gas pump 308, and keeping the gas pressure in the sealing cavity 310 at a fixed value;
s5, the body 200 is driven to move in the feeding groove 103 through the moving assembly, and pressure is applied to different positions of the body 200;
S6, when the gas in the sealing cavity 310 is exhausted, it can be judged that the body 200 is broken in a penetrating way, and the applied pressure of the current test assembly is recorded, so that the mechanical strength of the body 200 can be judged.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The terms first, second, third, fourth and the like in the description and in the claims and in the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments of the application may be implemented or realized in any number of ways, including as a matter of course, such that the apparatus or elements recited in the claims are not necessarily oriented or configured to operate in any particular manner. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more unless specifically stated otherwise.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The utility model provides an automobile instrument mechanical strength testing arrangement, includes base (101) and support frame (102), the top of base (101) sets up test assembly, and test assembly is used for carrying out mechanical strength test to body (200), its characterized in that still includes:
The feeding groove (103) is fixedly connected to the top of the base (101), the feeding groove (103) is located between the two supporting frames (102), and the feeding groove (103) is used for bearing the body (200) so that the body (200) can slide back and forth in the feeding groove (103);
the moving assembly is used for driving the body (200) to move in the feeding groove (103) so that all parts of the body (200) can be extruded by the extrusion block (107);
The sealing cavity (310) is formed in the base (101), and the sealing cavity (310) is positioned below the feeding groove (103);
the air outlet hole (311) is formed between the bottom of the inner wall of the feeding groove (103) and the sealing cavity (310), and the feeding groove (103) is communicated with the sealing cavity (310) through the air outlet hole (311);
The air pump (308), air pump (308) fixed mounting is in the inside of base (101), the top of air pump (308) is provided with two gas outlets, and first gas tube (309) are installed to the tip joint of one of them gas outlet, first gas tube (309) extend to the inside of sealed chamber (310), when air pump (308) start-up, first gas tube (309) exhaust high-pressure gas can get into sealed chamber (310), when the bottom of body (200) and the inner wall bottom contact of feed tank (103), under the effect of sealing washer, the bottom of body (200) is plugged up venthole (311), makes the unable exhaust of gas in sealed chamber (310).
2. The mechanical strength testing device for an automobile instrument panel according to claim 1, wherein the testing assembly comprises:
The upper pressing plate (104), the top of the upper pressing plate (104) is fixedly connected with a top plate (105), two ends of the top plate (105) are provided with sliding blocks matched with the inner side of the supporting frame (102), and the sliding blocks are in sliding connection with the inner side of the supporting frame (102);
A pressure sensor (106), the pressure sensor (106) being mounted below the lower platen (104);
The extrusion block (107), the extrusion block (107) is fixedly connected to the bottom of the pressure sensor (106);
a hydraulic rod (108), the hydraulic rod (108) being fixedly mounted on top of the top plate (105);
The lower pressing block (109), lower pressing block (109) fixed connection is in the flexible end in bottom of hydraulic stem (108), the bottom of lower pressing block (109) with the top fixed connection of pressure sensor (106), sliding tray (110) have been seted up at the middle part of lower pressing plate (104), the inside sliding connection of lower pressing block (109) and sliding tray (110).
3. The mechanical strength testing device for an automobile instrument panel according to claim 1, further comprising:
The air pressure sensor (312), the air pressure sensor (312) is fixedly arranged on the inner wall of the sealing cavity (310), and one end of the air pressure sensor (312) is connected with a signal wire;
When the mechanical strength of the body (200) is tested, the air pressure in the sealing cavity (310) is kept at a fixed value through the air pump (308), then the body (200) is subjected to extrusion test, in the process of gradually increasing the downward pressure, the air in the sealing cavity (310) is rapidly discharged after the body (200) is damaged by the extrusion block (107), the air pressure in the sealing cavity (310) is detected by the air pressure sensor (312) to be rapidly reduced, and the pressure-resistant mechanical strength of the body (200) can be judged.
4. The mechanical strength testing device for an automobile instrument panel according to claim 1, further comprising:
A pressing down column (301), the pressing down column (301) being disposed above the body (200);
The fixing seat (302), fixing seat (302) is fixedly connected to the top of base (101), fixing seat (302), lower pressure column (301) is slidably installed on the top of fixing seat (302), and a spring (304) is connected between the top of lower pressure column (301) and the top of fixing seat (302);
The rollers (303) are arranged at two ends of the pressing column (301), the bottoms of the rollers (303) are in contact with the top of the body (200), and the springs (304) pull the pressing column (301) downwards so that the rollers (303) at the bottoms of the pressing column (301) can be pressed on the top of the body (200);
And the clamp (305) is arranged at one end of the body (200) far away from the pressing column (301), and the clamp (305) can slide the body (200) in the feeding groove (103).
5. The mechanical strength testing device for an automobile instrument panel according to claim 4, further comprising:
the sliding groove (316), the sliding groove (316) is fixedly connected to the top of the base (101);
The two ends of the screw rod (307) are rotatably arranged at the two ends of the chute (316);
The sliding block (3051), sliding block (3051) fixed connection is in the bottom of anchor clamps (305), sliding block (3051) and spout (316) sliding connection, the middle part and the screw rod (307) threaded connection of sliding block (3051), when screw rod (307) rotate, can drive sliding block (3051) at the inside slip of spout (316).
6. The mechanical strength testing device for an automobile instrument panel according to claim 5, further comprising:
a clamping groove (3052), wherein the clamping groove (3052) is formed at one end of the clamp (305) close to the body (200);
Screw thread post (3053), have two, two screw thread post (3053) install at the upper and lower both ends of centre gripping groove (3052) respectively screw thread, two adjacent one end fixedly connected with grip block of screw thread post (3053), after two screw thread post (3053) are close to each other, two grip blocks also can be close to each other to the one end with body (200) is cliied.
7. The mechanical strength testing device for an automobile instrument panel according to claim 6, further comprising:
The first gears (3054) are provided with two, and the two first gears (3054) are respectively and fixedly connected to one ends of the two threaded columns (3053) which are far away from each other;
The second gears (3055) are provided with two second gears (3055), the two second gears (3055) are rotatably arranged at the upper end and the lower end of the clamp (305), and the two second gears (3055) are respectively meshed with the two first gears (3054);
The third gears (3056) are provided with two third gears (3056), the two third gears (3056) are fixed together through a rotating shaft, the two third gears (3056) are rotationally connected with one end of the clamp (305) through rotation, and the two third gears (3056) are respectively meshed with the two second gears (3055);
The first motor (3057), first motor (3057) fixed mounting is in the one end of anchor clamps (305), the top output of first motor (3057) is connected with fourth gear (3058), fourth gear (3058) with one of them third gear (3056) meshing.
8. The mechanical strength testing device for an automobile instrument panel according to claim 7, further comprising:
The output end of the second motor (306) is fixedly connected with one end of the screw rod (307), and the second motor (306) can drive the screw rod (307) to rotate.
9. The mechanical strength testing device for an automobile instrument panel according to claim 8, further comprising:
The motor box (313) is fixedly connected to the inside of the sealing cavity (310), the second motor (306) is fixedly arranged at the bottom of the inner wall of the motor box (313), one end of the motor box (313) is provided with an air hole (314), and the air hole (314) is communicated with the inside of the sliding groove (316);
And one end of the second air pipe (315) is arranged at the air outlet of the other one of the air pumps (308), and the other end of the second air pipe (315) is connected with one end of the motor box (313) and is communicated with the inside of the motor box (313).
10. An automobile instrument board mechanical strength testing method adopting the automobile instrument board mechanical strength testing device according to any one of claims 1-9, and is characterized by comprising the following steps:
s1, placing a body (200) to be detected in a feeding groove (103);
S2, the moving assembly drives the body (200) to slide in the feeding groove (103), and different positions of the body (200) are detected;
S3, the testing component presses the top of the body (200), and the applied pressure is sequentially increased;
S4, injecting gas into the sealing cavity (310) by the air pump (308), and keeping the air pressure in the sealing cavity (310) at a fixed value;
S5, driving the body (200) to move in the feeding groove (103) through the moving assembly, and pressing different positions of the body (200);
s6, when the gas in the sealing cavity (310) is exhausted, the body (200) can be judged to be broken in a penetrating mode, the applied pressure of the current testing assembly is recorded, and the mechanical strength of the body (200) can be judged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510266277.7A CN120008855B (en) | 2025-03-07 | 2025-03-07 | Automobile instrument panel mechanical strength testing device and testing method thereof |
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| CN202510266277.7A CN120008855B (en) | 2025-03-07 | 2025-03-07 | Automobile instrument panel mechanical strength testing device and testing method thereof |
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| CN120008855B (en) | 2025-09-05 |
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