Automobile rear bumper testing fixture

Abstract

The utility model discloses an automobile rear bumper testing fixture, which relates to the technical field of automobile bumpers and comprises a supporting mechanism, an automobile rear bumper fixing mechanism is arranged in the supporting mechanism, the top of the supporting mechanism is fixedly connected with a detection mechanism, and the detection mechanism comprises an air cylinder. One end of the air cylinder is fixedly connected with a first mounting plate, and the surface of the first mounting plate is fixedly connected with a displacement sensor. According to the utility model, through the arrangement of the detection mechanism, in the process of detecting the automobile rear bumper, the air cylinder is used for driving the displacement sensor to press downwards, so that the plurality of displacement sensor probes are contacted with different positions on the surface of the automobile rear bumper, and the detection accuracy is improved by using the counter-acting force of the automobile rear bumper to the sensor probes. The sensor probes are pushed to form displacement, the displacement is displayed through the displacement display screen, the displacement distances of the sensor probes are compared with standard data, and whether deformation exists at different positions of the rear bumper of the automobile or not can be obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile bumper, specifically relates to a automobile rear bumper testing fixture. BACKGROUND

[0002] The automobile rear bumper is an important component of the automobile body, is installed at the rear of the automobile, mainly plays the role of protection and decoration, when the vehicle collides at low speed, the rear bumper can absorb and disperse the collision energy, reduces the damage degree of the main structure of the vehicle body and the internal components of the vehicle, and the appearance design of the rear bumper is matched with the overall style of the vehicle body, can improve the aesthetic degree of the automobile. It can adopt different shapes, lines and colors, make the rear of the automobile more dynamic, smooth or steady, however, due to the fluctuation of parameters such as temperature, pressure and speed in the injection molding process, the wear and precision decay caused by long-term use of the mold and the slight difference between batches of raw materials, so that the rear bumper often has size deviation, shape distortion, inaccurate assembly hole position and other quality problems after forming, therefore, the automobile rear bumper testing fixture needs to be used for detection.

[0003] At present, the detection mode of the automobile rear bumper is mainly to measure the key size of the rear bumper by means of the caliper, micrometer and other measuring tools, for example, the length, width, thickness of the bumper and the size of the key position, but this kind of measurement mode, for the automobile rear bumper with complex shape, due to the less measurement points and the special shape of the automobile rear bumper, the measurement data is not comprehensive, it is difficult to detect the small range deformation of the automobile rear bumper, and there is certain inconvenience. UTILITARIAN CONTENT

[0004] The utility model provides a kind of automobile rear bumper testing fixture to solve the problems in the above background technology.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] A kind of automobile rear bumper testing fixture, including support mechanism, the inside of the support mechanism is provided with automobile rear bumper fixing mechanism, the top of the support mechanism is fixedly connected with detection mechanism, the detection mechanism includes cylinder, one end of the cylinder is fixedly connected with first mounting plate, the surface of the first mounting plate is fixedly connected with displacement sensor, the bottom of the displacement sensor is provided with sensor probe, the surface of the sensor probe is provided with second mounting plate, the surface of the sensor probe is movably sleeved with spring, the upper end of the spring is fixedly connected with the bottom of first mounting plate.

[0007] The further improvement of the utility model technical scheme lies in that the supporting mechanism comprises a supporting rod, a detection table with through holes is fixedly connected to the top of the supporting rod, a sliding rod is fixedly connected to the top of the detection table, a supporting frame is fixedly connected to the top of the sliding rod, and the top of the supporting frame is fixedly connected with the surface of a cylinder.

[0008] The further improvement of the utility model technical scheme lies in that the detection mechanism further comprises a displacement display screen, a control terminal is arranged on one side of the displacement display screen, and the control terminal is electrically connected with the displacement sensor.

[0009] The further improvement of the utility model technical scheme lies in that the automobile rear bumper fixing mechanism comprises a plug-in part, a limiting piece is fixedly connected to the top of the plug-in part, and the surface of the plug-in part is plugged into the through hole on the surface of the detection table.

[0010] The further improvement of the utility model technical scheme lies in that a rotating disc is rotatably connected to the top of the limiting piece, and a fixed column is fixedly connected to the top of the rotating disc.

[0011] The further improvement of the utility model technical scheme lies in that a first screw rod is screw-connected in the fixed column, and a fixed plate is rotatably connected to one end of the first screw rod.

[0012] The further improvement of the utility model technical scheme lies in that a guide rod is fixedly connected to the side of the fixed plate close to the first screw rod, and the surface of the guide rod is plugged into the fixed column.

[0013] The further improvement of the utility model technical scheme lies in that a second screw rod is screw-connected to the bottom of the fixed column, a pressing piece is fixedly connected to the surface of the second screw rod, and the top of the pressing piece is overlapped with the bottom of the detection table.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] The utility model provides a kind of automobile rear bumper detection tool, by the setting of detection mechanism, in the process of detecting automobile rear bumper, the displacement of sensor probe is formed by using the reaction force of sensor probe of automobile rear bumper to the down pressure of cylinder driving displacement sensor, and displacement display screen is displayed, the displacement distance of multiple sensor probe is compared with standard data, whether the deformation of different positions of automobile rear bumper exists can be obtained, compared with conventional measurement mode, it is more convenient to measure irregularly shaped automobile rear bumper, and automobile rear bumper fixing mechanism can be flexibly adjusted in the position of measuring table, so that it can adapt to automobile rear bumper of different sizes, and the adaptability is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view structure schematic drawing of the utility model;

[0017] Figure 2 It is the bottom view structure schematic drawing of the utility model;

[0018] Figure 3 It is the detection mechanism structure schematic drawing of the utility model;

[0019] Figure 4 It is the automobile rear bumper fixing mechanism structure schematic drawing of the utility model.

[0020] In the figure: 11, support rod; 12, detection table; 13, sliding rod; 14, support frame; 21, plug-in part; 22, limiting piece; 23, rotating disc; 24, fixed column; 25, first screw; 26, fixed plate; 27, guide rod; 28, second screw; 29, abutting piece; 31, air cylinder; 32, first mounting plate; 33, displacement sensor; 34, sensor probe; 35, second mounting plate; 36, spring; 37, displacement display screen; 38, control terminal. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with examples:

[0022] Example 1

[0023] As Figures 1-4 shown, the utility model provides a kind of automobile rear bumper testing fixture, including support mechanism, automobile rear bumper fixing mechanism is provided in the inside of support mechanism, the top of support mechanism is fixedly connected with detection mechanism, and detection mechanism includes air cylinder 31, one end of air cylinder 31 is fixedly connected with first mounting plate 32, the surface of first mounting plate 32 is fixedly connected with displacement sensor 33, the bottom of displacement sensor 33 is provided with sensor probe 34, the surface of sensor probe 34 is provided with second mounting plate 35, spring 36 is movably sleeved on the surface of sensor probe 34, and the upper end of spring 36 is fixedly connected with the bottom of first mounting plate 32.

[0024] In the embodiment, the first mounting plate 32 is lowered along the slide rod 13 under the action of the cylinder 31, and the plurality of sensor probes 34 are synchronously driven to contact the surface of the rear bumper of the automobile, the displacement of the sensor probes 34 at different positions is different under the reaction force of the rear bumper of the automobile, the data detected by the plurality of displacement sensors 33 is displayed on the displacement display screen 37 through the control terminal 38, and then the standard data is compared, so that the deformation amplitude and position of the rear bumper of the automobile can be accurately known according to the data error and the label of the displacement sensor 33, and after detection, the first mounting plate 32 is lifted under the action of the spring 36 compressed by the second mounting plate 35, so that the sensor probes 34 are reset, and the next rear bumper of the automobile can be detected.

[0025] Embodiment 2

[0026] As Figures 1-4 shown, based on the embodiment 1, the utility model provides a technical scheme: preferably, the supporting mechanism includes the support rod 11, the top of the support rod 11 is fixedly connected with the detection table 12 with a through hole on the surface, the top of the detection table 12 is fixedly connected with the slide rod 13, the top of the slide rod 13 is fixedly connected with the support frame 14, the top of the support frame 14 is fixedly connected with the surface of the cylinder 31, and the detection mechanism further includes the displacement display screen 37, one side of the displacement display screen 37 is provided with the control terminal 38, and the control terminal 38 is electrically connected with the displacement sensor 33.

[0027] In the embodiment, when the rear bumper of the automobile is detected, the rear bumper of the automobile is placed on the surface of the detection table 12, then the plug-in part 21 is inserted into the appropriate through hole according to the size of the rear bumper of the automobile, the second screw rod 28 is screwed from the bottom of the detection table 12 and the plug-in part 21, and the abutting piece 29 abuts against the bottom of the detection table 12, so that the fixing of the fixing mechanism is completed.

[0028] Embodiment 3

[0029] As Figures 1-4As shown, on the basis of embodiment 1, the utility model provides a technical scheme: preferably, automobile rear bumper fixing mechanism includes the plug -in part 21, the top fixed connection of plug -in part 21 is limited piece 22, the surface of plug -in part 21 is inserted with the through -hole of the surface of detection platform 12, the top of limited piece 22 is rotatably connected with rotating disc 23, the top fixed connection of rotating disc 23 has fixed column 24, the inside screw thread connection of fixed column 24 has first screw rod 25, one end rotatable connection of first screw rod 25 has fixed plate 26, the side fixed connection of fixed plate 26 close to first screw rod 25 has guide rod 27, the surface of guide rod 27 is inserted with the inside of fixed column 24, the bottom screw thread connection of fixed column 24 has second screw rod 28, the surface fixed connection of second screw rod 28 has abutting member 29, the top of abutting member 29 and the bottom of detection platform 12 overlap.

[0030] In the embodiment, by rotating the rotating disc 23 to the appropriate angle, rotating the first screw rod 25, the first screw rod 25 pushes the fixed plate 26 to contact the automobile rear bumper, and the fixed plate 26 is used to fix the automobile rear bumper by the pressure of the fixed plate 26 on the automobile rear bumper and the friction force between the fixed plate 26 and the automobile rear bumper. When the fixed plate 26 moves, the guide rod 27 is driven to move along the inside of the fixed column 24, guiding the fixed plate 26, avoiding it from rotating with the first screw rod 25.

[0031] Now, the working principle of the automobile rear bumper testing fixture will be described in detail.

[0032] As Figures 1-4As shown, when detecting the automobile rear bumper, the automobile rear bumper is placed on the surface of the detection table 12, then according to the size of the automobile rear bumper, the plug-in part 21 is inserted into the appropriate through hole, the second screw rod 28 is screwed from the bottom of the detection table 12 and the plug-in part 21, the abutting piece 29 abuts against the bottom of the detection table 12, that is, the fixing of the fixing mechanism is completed, then the rotating disc 23 is rotated to the appropriate angle, the first screw rod 25 is rotated, the first screw rod 25 pushes the fixing plate 26 to contact the automobile rear bumper, the automobile rear bumper is fixed by the pressure of the fixing plate 26 and the friction between the fixing plate 26 and the automobile rear bumper, when the fixing plate 26 moves, the guide rod 27 is driven to move along the inside of the fixing column 24, the fixing plate 26 is guided, and the fixing plate 26 is prevented from rotating with the first screw rod 25, after the fixing is completed, under the action of the air cylinder 31, the first mounting plate 32 moves downward along the slide rod 13, and then the plurality of sensor probes 34 are driven to contact the surface of the automobile rear bumper, the displacement of the sensor probes 34 at different positions is different through the reaction force of the automobile rear bumper on the sensor probes 34, after the detection data of the plurality of displacement sensors 33 is displayed through the displacement display screen 37 by the control terminal 38, the data is compared with the standard data in sequence, the deformation amplitude and position of the automobile rear bumper can be accurately known according to the data error and the label of the displacement sensor 33, after the detection is completed, the first mounting plate 32 is driven to move upward by the air cylinder, under the action of the spring 36 compressed by the second mounting plate 35, the sensor probe 34 is reset, so that the next automobile rear bumper can be detected, compared with the conventional detection method, the automobile rear bumper of different sizes and irregular shapes can be detected, and the detection data is more accurate.

[0033] The above has made a detailed description of the present application, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the scope of the present application.

Claims

1. An automotive rear bumper tester comprising a support mechanism, characterized by: The inside of the supporting mechanism is provided with an automobile rear bumper fixing mechanism, the top of the supporting mechanism is fixedly connected with a detection mechanism, the detection mechanism comprises a gas cylinder (31), one end of the gas cylinder (31) is fixedly connected with a first mounting plate (32), the surface of the first mounting plate (32) is fixedly connected with a displacement sensor (33), the bottom of the displacement sensor (33) is provided with a sensor probe (34), the surface of the sensor probe (34) is provided with a second mounting plate (35), the surface of the sensor probe (34) is movably sleeved with a spring (36), and the upper end of the spring (36) is fixedly connected with the bottom of the first mounting plate (32).

2. The automobile rear bumper testing fixture according to claim 1, wherein: The supporting mechanism comprises a supporting rod (11), the top of the supporting rod (11) is fixedly connected with a detection table (12) with a through hole in the surface, the top of the detection table (12) is fixedly connected with a sliding rod (13), the top of the sliding rod (13) is fixedly connected with a supporting frame (14), and the top of the supporting frame (14) is fixedly connected with the surface of the gas cylinder (31).

3. The automobile rear bumper testing fixture according to claim 1, wherein: The detection mechanism further comprises a displacement display screen (37), one side of the displacement display screen (37) is provided with a control terminal (38), and the control terminal (38) is electrically connected with the displacement sensor (33).

4. The automotive rear bumper testing fixture of claim 1, wherein: The automobile rear bumper fixing mechanism comprises a plug-in part (21), the top of the plug-in part (21) is fixedly connected with a limiting piece (22), and the surface of the plug-in part (21) is plugged with the through hole in the surface of the detection table (12).

5. The automotive rear bumper testing fixture of claim 4, wherein: The top of the limiting piece (22) is rotatably connected with a rotating disc (23), and the top of the rotating disc (23) is fixedly connected with a fixed column (24).

6. The automotive rear bumper testing fixture of claim 5, wherein: The inside of the fixed column (24) is screw-connected with a first screw rod (25), one end of the first screw rod (25) is rotatably connected with a fixed plate (26).

7. The automotive rear bumper testing fixture of claim 6, wherein: One side of the fixed plate (26) close to the first screw rod (25) is fixedly connected with a guide rod (27), and the surface of the guide rod (27) is plugged with the inside of the fixed column (24).

8. The automotive rear bumper testing fixture of claim 7, wherein: The bottom of the fixed column (24) is screw-connected with a second screw rod (28), the surface of the second screw rod (28) is fixedly connected with an abutting piece (29), and the top of the abutting piece (29) is overlapped with the bottom of the detection table (12).

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