Automobile middle roof bonding strength testing fixture

Abstract

The utility model relates to the technical field of automobile middle roof detection, in particular to an automobile middle roof bonding strength testing fixture, which comprises a bottom plate, a spring telescopic rod I and the like. And at least four spring telescopic rods I are mounted on the bottom plate. According to the utility model, the two thimbles move downwards to pierce a middle jacking felt sample, then the electric mechanical claw is controlled to start to clamp a sound insulation pad, a wear-resistant pad and a textile surface layer in the middle jacking felt sample, and numerical values on the tension meter are recorded; an electric mechanical claw moves to drive a sound insulation pad, a wear-resistant pad and a textile surface layer in the middle top felt sample to move upwards, and the states of the sound insulation pad, the wear-resistant pad and the textile surface layer are detected in real time through an external CCD camera until the sound insulation pad, the wear-resistant pad and the textile surface layer in the middle top felt sample are separated from the automobile middle top sample; and a numerical value on the tension meter at the moment of separation is recorded, so that the bonding strength of the middle top felt sample is detected.

Description

Technical Field

[0001] This utility model relates to the field of automotive roof testing technology, and in particular to an automotive roof bonding strength testing tool. Background Technology

[0002] After the felt is bonded to the roof of a car, its bonding strength needs to be tested to ensure its reliability during the use of the vehicle. However, based on existing technology, it has been found that after the roof felt is installed on the vehicle, its bonding strength will change due to vibration during vehicle operation. However, existing inspection tools can only perform simple tensile tests on the roof felt and cannot truly simulate the state of the roof felt in actual use. This makes the test very limited and reduces the accuracy of the test results. Utility Model Content

[0003] In order to overcome the shortcomings of existing technologies that cannot realistically simulate the state of automotive roof felt in actual use, thus reducing the accuracy of test results, this utility model provides an automotive roof bonding strength tester.

[0004] The technical solution of this utility model is: a test fixture for the bonding strength of automotive roof mat, comprising a base plate; further comprising spring telescopic rod I, a limiting plate, spring telescopic rod II, a fixed frame, a bidirectional lead screw, a handle, and a measuring component; at least four spring telescopic rods I are mounted on the base plate; at least two limiting plates are fixedly connected to the base plate; at least four spring telescopic rods II are provided on the base plate; a fixed frame is fixedly connected to the end of all spring telescopic rods II away from the base plate; a bidirectional lead screw is rotatably connected to the fixed frame; a handle is fixedly connected to the bidirectional lead screw; and a measuring component is connected to the bidirectional lead screw, the measuring component being used to measure the bonding strength of automotive roof mat.

[0005] Furthermore, the handle is equipped with an anti-slip rubber sleeve.

[0006] Furthermore, the measuring component includes a sliding block, a connecting rod, a fixed block, an electromechanical claw, a limit block, a force gauge, and a lifting ring; at least two sliding blocks are screwed onto the bidirectional lead screw; a connecting rod is rotatably connected to each sliding block; all connecting rods are connected to a fixed block via a rotating shaft; an electromechanical claw is mounted on the fixed block; a limit block is fixedly connected to one of the sliding blocks, and at least two bolts are screwed onto the limit block; a force gauge is installed on the limit block; a lifting ring is fixedly connected to the other sliding block; the lifting ring is connected to a hook in the force gauge.

[0007] Furthermore, it also includes sliding rods and elastic elements; at least three sliding rods are slidably connected to each limiting plate; an elastic element is sleeved on the outside of each sliding rod, one end of the elastic element is fixed to the sliding rod, and the other end of the elastic element is fixed to the limiting plate.

[0008] Furthermore, it also includes a vibration motor; the vibration motor is fixedly attached to the base plate.

[0009] Furthermore, it also includes ejector pins; at least two ejector pins are fixed to the gripping part of the electromechanical gripper, and the ejector pins are made of alloy material.

[0010] The advantages and positive effects of this utility model are:

[0011] (1) Move the electric mechanical claw downwards and make the two pins move downwards to pierce the top felt sample, piercing the sound insulation pad, wear-resistant pad and textile surface layer in the top felt sample. Then, control the electric mechanical claw to start operation to clamp the sound insulation pad, wear-resistant pad and textile surface layer in the top felt sample and record the value on the tension gauge.

[0012] (2) The sound insulation pad, wear-resistant pad and textile surface layer in the roof felt sample are moved upward by the electric mechanical claw. The state of the sound insulation pad, wear-resistant pad and textile surface layer is detected in real time by the external CCD camera until the sound insulation pad, wear-resistant pad and textile surface layer in the roof felt sample are separated from the roof sample of the car. The value on the tension gauge at the moment of separation is recorded, so as to know the bonding strength between the sound insulation pad, wear-resistant pad and textile surface layer in the roof felt sample and the roof sample of the car, thereby realizing the bonding strength test of the roof felt sample.

[0013] (3) By starting the vibration motor, all spring telescopic rods I undergo adaptive deformation, and the base plate vibrates. The vibration of the base plate causes the top felt sample to vibrate, thus simulating the vibration phenomenon of the top felt sample during vehicle operation. This method simulates the actual use of the top felt sample in advance and then tests the bonding strength of the top felt sample, making the test of the top felt sample more comprehensive and obtaining test results that are closer to the actual working conditions, thereby improving the accuracy of the test results. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the automotive mid-top bonding strength tester of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the combination of the base plate, limiting plate, sliding rod, elastic element and vibration motor of the automotive mid-top bonding strength tester of this utility model.

[0016] Figure 3 This is a schematic diagram showing the installation position of the measuring components of the automotive mid-top bonding strength tester of this utility model;

[0017] Figure 4 This is a schematic diagram of the ejector pin installation position of the automotive mid-top bonding strength tester of this utility model.

[0018] The labels in the diagram are as follows: 1-Base plate, 2-Central top felt sample, 201-Spring telescopic rod I, 202-Limiting plate, 203-Sliding rod, 2031-Elastic element, 204-Vibration motor, 301-Spring telescopic rod II, 302-Fixing frame, 303-Double-actuated screw, 3031-Handle, 304-Sliding block, 305-Connecting rod, 306-Fixing block, 307-Electromechanical claw, 3071-Ejector pin, 308-Limiting block, 309-Tension gauge, 310-Lifting ring. Detailed Implementation

[0019] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0020] Example 1:

[0021] A bonding strength tester for automotive roof panels, based on Figures 1-4 As shown, it includes a base plate 1;

[0022] It also includes a spring telescopic rod I 201, a limiting plate 202, a spring telescopic rod II 301, a fixed frame 302, a bidirectional lead screw 303, a handle 3031, and a metering component; a spring telescopic rod I 201 is installed at each of the four rectangular corners of the base plate 1; two limiting plates 202 are fixedly connected to the upper surface of the base plate 1; four spring telescopic rods II 301 are provided on the upper surface of the base plate 1; a fixed frame 302 is fixedly connected to the end of all the spring telescopic rods II 301 away from the base plate 1; a bidirectional lead screw 303 is rotatably connected to the fixed frame 302; a handle 3031 is fixedly connected to the bidirectional lead screw 303; and a metering component is connected to the bidirectional lead screw 303.

[0023] The handle 3031 is equipped with an anti-slip rubber sleeve to increase the friction between the hand and the handle 3031.

[0024] The measuring assembly includes a sliding block 304, a connecting rod 305, a fixed block 306, an electromechanical claw 307, a limit block 308, a force gauge 309, and a lifting ring 310. Two sliding blocks 304 are screwed onto the bidirectional lead screw 303. A connecting rod 305 is rotatably connected to each sliding block 304. All connecting rods 305 are connected to a fixed block 306 via a rotating shaft. An electromechanical claw 307 is mounted on the fixed block 306. A limit block 308 is fixed to one of the sliding blocks 304, and two bolts are screwed onto the limit block 308. A force gauge 309 is installed on the limit block 308. A lifting ring 310 is fixed to the other sliding block 304. The lifting ring 310 is connected to the hook in the force gauge 309.

[0025] It also includes a slide rod 203 and an elastic element 2031; three slide rods 203 are slidably connected to each limiting plate 202; an elastic element 2031 is sleeved on the outside of each slide rod 203. The elastic element 2031 is a spring. One end of the elastic element 2031 is fixed to the slide rod 203, and the other end of the elastic element 2031 is fixed to the limiting plate 202.

[0026] It also includes a vibration motor 204; the vibration motor 204 is fixedly connected to the lower surface of the base plate 1.

[0027] It also includes ejector pins 3071; two ejector pins 3071 are fixedly attached to the clamping part of the electromechanical claw 307, and the ejector pins 3071 are made of alloy material.

[0028] The roof felt sample 2 is inserted manually between the two limiting plates 202, and is supported by the base plate 1. The roof felt sample 2 consists of a car roof sample, sound insulation pad, wear-resistant pad, and textile surface layer. The sound insulation pad, wear-resistant pad, and textile surface layer are soft and deformable. Then, the hook on the tension gauge 309 is hooked onto the lifting ring 310, and the other end of the tension gauge 309 is inserted into the limiting block 308. Finally, the two bolts on the limiting block 308 are tightened. Figure 3 As shown, this allows for the limiting of the force gauge 309, thus completing the installation of the force gauge 309.

[0029] When testing the bonding strength of the top felt sample 2, using the front side of the base plate 1 as a reference, looking from top to bottom, manually pressing the fixing frame 302 causes it to move downwards, compressing all the spring telescopic rods II 301. Simultaneously, the movement of the fixing frame 302 drives the bidirectional lead screw 303 downwards, which in turn moves all connected components, causing the electric mechanical claw 307 to move downwards. This causes the two ejector pins 3071 to move downwards and pierce into the top felt sample 2, thus... The sound insulation pad, abrasion-resistant pad, and textile surface layer in the top felt sample 2 are punctured. Then, the electric mechanical claw 307 is activated to clamp the sound insulation pad, abrasion-resistant pad, and textile surface layer in the top felt sample 2. Since the sound insulation pad, abrasion-resistant pad, and textile surface layer are soft and deformable, they are easy for the electric mechanical claw 307 to clamp. After the electric mechanical claw 307 has clamped the sound insulation pad, abrasion-resistant pad, and textile surface layer in the top felt sample 2, the value on the tension gauge 309 is recorded manually. This value is the initial value.

[0030] Then, a person manually holds handle 3031 and twists it to make it rotate. The rotation of handle 3031 drives the bidirectional lead screw 303 to rotate. The rotation of the bidirectional lead screw 303 drives two sliding blocks 304 to move in opposite directions. The movement of each sliding block 304 drives a connecting rod 305 to move. The movement of the two connecting rods 305 together drives the fixed block 306 to move upward. The movement of the fixed block 306 drives the electric mechanical claw 307 to move. In turn, the movement of the electric mechanical claw 307 drives the sound insulation pad, wear-resistant pad, and textile surface layer in the top felt sample 2 to move upward. The status of the sound insulation pad, wear-resistant pad, and textile surface layer is monitored by an external CCD camera. The system performs real-time monitoring until the sound insulation pad, wear-resistant pad, and textile surface layer in the roof felt sample 2 detach from the car roof sample. Then, the handle 3031 is manually stopped from being turned, and the value on the tension gauge 309 is recorded at the moment of detachment. This allows the system to determine the bonding strength between the sound insulation pad, wear-resistant pad, and textile surface layer in the roof felt sample 2 and the car roof sample. If the value on the tension gauge 309 is within the acceptable range, it indicates that the bonding strength between the sound insulation pad, wear-resistant pad, and textile surface layer in the roof felt sample 2 and the car roof sample meets the production standards. Otherwise, it indicates that it does not meet the production standards. This process enables the testing of the bonding strength of the roof felt sample 2.

[0031] Furthermore, since the roof felt of a car is installed on the vehicle, it will vibrate during the vehicle's movement, which can easily cause changes in the bonding strength of the roof felt. Existing inspection tools can only perform simple tensile tests on the roof felt, which cannot truly reflect the condition of the roof felt in actual use, thus resulting in significant limitations in the inspection and reducing the accuracy of the test results.

[0032] To address the aforementioned issues, before the electromechanical gripper 307 clamps the sound insulation pad, wear-resistant pad, and textile surface layer in the top felt sample 2, the vibration motor 204 is activated. This causes all the spring telescopic rods I 201 to undergo adaptive deformation, simultaneously vibrating the base plate 1. The vibration of the base plate 1 causes the top felt sample 2 to vibrate, thus simulating the vibration phenomenon that occurs when the top felt sample 2 is in motion. Furthermore, the sliding rod 203 and the elastic element 2031 prevent the top felt sample 2 from falling off during vibration. Regarding displacement issues, after the preset vibration time is reached, the vibration motor 204 is controlled to stop operating. Then, the electric mechanical gripper 307 is controlled to start in the above manner to clamp the sound insulation pad, wear-resistant pad, and textile surface layer in the top felt sample 2 and perform testing. This method simulates the actual use of the top felt sample 2 in advance and then tests the bonding strength of the top felt sample 2, making the testing of the top felt sample 2 more comprehensive and obtaining test results that are closer to the actual working conditions, thereby improving the accuracy of the test results.

[0033] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A car roof adhesion strength testing fixture, comprising a base plate (1); characterized in that: The spring telescopic rod I (201), the limiting plate (202), the spring telescopic rod II (301), the fixed frame (302), the bidirectional screw rod (303), the handle (3031) and the metering assembly are further included; the bottom plate (1) is provided with at least four spring telescopic rods I (201); the bottom plate (1) is fixedly connected with at least two limiting plates (202); the bottom plate (1) is provided with at least four spring telescopic rods II (301); the ends, away from the bottom plate (1), of all the spring telescopic rods II (301) are fixedly connected with a fixed frame (302) in common; the fixed frame (302) is rotatably connected with a bidirectional screw rod (303); the bidirectional screw rod (303) is fixedly connected with a handle (3031); the bidirectional screw rod (303) is connected with a metering assembly, which is used for metering the bonding strength of the automobile roof blanket.

2. The adhesion strength testing device for a center roof of an automobile according to claim 1, wherein: The handle (3031) is provided with an antiskid rubber sleeve.

3. The adhesion strength testing device for a center roof of an automobile according to claim 1, wherein: The metering assembly comprises the sliding block (304), the connecting rod (305), the fixed block (306), the electric mechanical claw (307), the limiting block (308), the tension meter (309) and the lifting ring (310); the bidirectional screw rod (303) is rotatably connected with at least two sliding blocks (304); each sliding block (304) is rotatably connected with a connecting rod (305); all the connecting rods (305) are rotatably connected with a fixed block (306) through a rotating shaft; the fixed block (306) is provided with an electric mechanical claw (307); one of the sliding blocks (304) is fixedly connected with a limiting block (308), and the limiting block (308) is rotatably connected with at least two bolts; the limiting block (308) is provided with a tension meter (309); the other sliding block (304) is fixedly connected with a lifting ring (310); the lifting ring (310) is connected with a hook in the tension meter (309).

4. The adhesion strength testing device for a center roof of a vehicle according to any one of claims 1 to 3, characterized in that: The slide rod (203) and the elastic member (2031) are further included; each limiting plate (202) is slidably connected with at least three slide rods (203); each slide rod (203) is sleeved with an elastic member (2031) on the outer side, one end of the elastic member (2031) is fixedly connected with the slide rod (203), and the other end of the elastic member (2031) is fixedly connected with the limiting plate (202).

5. The adhesion strength testing device for a center roof of an automobile according to claim 4, wherein: The vibration motor (204) is further included; the vibration motor (204) is fixedly connected with the bottom plate (1).

6. The adhesion strength testing device for a center roof of an automobile according to claim 5, wherein: The thimble (3071) is further included; at least two thimbles (3071) are fixedly connected with the clamping part of the electric mechanical claw (307), and the thimbles (3071) are made of alloy material.

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