Visual inspection device suitable for small welding parts of vehicle body

Abstract

The utility model relates to the field of automobile manufacturing, and discloses a visual inspection device suitable for small welding parts of an automobile body, the visual inspection device comprises a multi-shaft mechanical arm and an inspection device connected with the multi-shaft mechanical arm, the inspection device comprises a shell and a camera, the shell is provided with a channel penetrating from top to bottom, and the camera is connected with the multi-shaft mechanical arm. The camera is connected into the channel in a sliding mode, an elastic anti-collision ring surrounding the channel is arranged at an outlet of the channel, a pressure sensor is arranged in the elastic anti-collision ring, and the pressure sensor is electrically connected with the multi-axis mechanical arm. When the multi-axis mechanical arm control detection device collides in the operation process and the elastic anti-collision ring collides with an object firstly, due to the fact that the elastic anti-collision ring has the deformability and can play a buffering role, the elastic anti-collision ring triggers the pressure sensor at the same time, the multi-axis mechanical arm retreats after obtaining feedback of the pressure sensor, and therefore the multi-axis mechanical arm control detection device can be controlled. And the camera is prevented from being damaged due to secondary collision caused by intensified collision.

Description

Technical Field

[0001] The utility model relates to the field of automobile manufacturing, in particular to a visual inspection device suitable for small welding parts of a vehicle body. Background Art

[0002] The automobile dashboard crossbeam assembly is a key component in the automobile interior system. It is specifically installed in the front of the vehicle. The automobile dashboard crossbeam assembly also mounts many components such as the steering column, air conditioning, airbags, etc. The space is relatively compact and must conform to the direction of various wiring harnesses.

[0003] In order to mount other automotive components on the automotive instrument panel cross beam assembly, it is usually necessary to weld corresponding overlapping structures to support or bridge the automotive components. When welding overlapping structures on the automotive instrument panel cross beam assembly, due to the uneven sizes and large number of overlapping structures, especially small overlapping structures, they are easily affected by external factors and deflected during the welding process. Therefore, it is necessary to inspect the automotive instrument panel cross beam assembly after welding.

[0004] Existing detection devices usually use a robotic arm combined with a camera to approach the car dashboard crossbeam assembly for shooting and detection. Although the movement trajectory of the robotic arm can be set, due to the need to weld overlapping structures of different sizes and the poor quality of some individual welds, the overlapping structure and the car dashboard crossbeam assembly are not in the predetermined position, which leads to the risk of collision between the robotic arm and the overlapping structure during movement. Such collision can easily damage the camera. Utility Model Content

[0005] The purpose of this utility model is to provide a visual inspection device for small welded parts of a vehicle body to solve the problem that the existing robot arm still has the risk of colliding with the overlapping structure during movement, and such collision can easily damage the camera. The specific technical solution is as follows:

[0006] A visual inspection device suitable for small welded parts of a car body includes a multi-axis robotic arm and a detection device connected to the multi-axis robotic arm. The detection device includes a shell and a camera. The shell is provided with a channel running through from top to bottom. The camera is slidably connected in the channel. An elastic anti-collision ring is provided at the outlet of the channel and is arranged around the channel. The elastic anti-collision ring has a built-in pressure sensor, and the pressure sensor is electrically connected to the multi-axis robotic arm.

[0007] Preferably, a reinforcement ring is provided on the inner side of the elastic anti-collision ring.

[0008] Preferably, the reinforcement ring includes an inner ring and an outer ring, the inner ring and the outer ring are coaxially arranged, and a plurality of reinforcing rods are connected between the inner ring and the outer ring, the plurality of reinforcing rods are equidistantly distributed in a ring shape, and the camera passes through the inner ring.

[0009] Preferably, the elastic anti-collision ring is connected to the outer bottom of the outer ring, the outer top of the outer ring is provided with a protrusion, and the inner wall of the channel is provided with a groove for installing the protrusion.

[0010] Preferably, a guide rail is provided in the channel and arranged along the length direction of the channel, a slider is provided on the guide rail and slidably cooperates with the guide rail, and the camera is connected to the slider.

[0011] Preferably, the number of the reinforcing rods is at least three.

[0012] The beneficial effects of the present invention are as follows: when the multi-axis robotic arm control and detection device collides during operation, the elastic anti-collision ring will first collide with the object. Since the elastic anti-collision ring itself has the ability to deform, it can play a buffering role. The elastic anti-collision ring will also trigger the pressure sensor. The multi-axis robotic arm will retreat after receiving feedback from the pressure sensor to avoid aggravated collision and secondary collision that may damage the camera. The reinforcement ring can support the elastic anti-collision ring so that the elastic anti-collision ring can withstand stronger impacts. That is, the reinforcement ring is not only used to support the elastic anti-collision ring, but its inner ring also encloses the camera therein, and the inner ring can also protect the camera.

[0013] Additional aspects and advantages of the present invention will be partially given in the description below, and partially will become apparent from the description below, or will be understood through the practice of the present invention. Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 It is a structural schematic diagram of the multi-axis robotic arm of the present utility model.

[0017] Figure 3 It is a structural schematic diagram of the detection device of the present utility model.

[0018] Figure 4 It is a structural schematic diagram of the reinforcement ring of the utility model.

[0019] Figure 5 This is another structural schematic diagram of the reinforcement ring of the present invention.

[0020] In the figure: 1. Multi-axis robotic arm; 2. Detection device; 21. Shell; 22. Camera; 23. Elastic anti-collision ring; 24. Pressure sensor; 25. Reinforcement ring; 26. Guide rail; 27. Slider; 211. Channel; 251. Inner ring; 252. Outer ring; 253. Reinforcement rod; 2521. Protrusion. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The robot arm based on the existing detection device still has the risk of colliding with the overlapping structure during movement. This collision can easily damage the camera. Figure 1-5 The present invention provides an embodiment to solve the above-mentioned problem, specifically comprising a multi-axis robotic arm 1 and a detection device 2 connected to the multi-axis robotic arm 1, the detection device 2 comprising a shell 21 and a camera 22, the shell 21 being provided with a channel 211 running through from top to bottom, the camera 22 being slidably connected in the channel 211, an elastic anti-collision ring 23 being arranged around the channel 211 at the outlet of the channel 211, the elastic anti-collision ring 23 being provided with a built-in pressure sensor 24, the pressure sensor 24 being electrically connected to the multi-axis robotic arm 1, by providing the pressure sensor 24 it is possible to timely sense whether the shell 21 collides, and when the pressure sensor 24 detects that the shell 21 collides with the overlap structure, the multi-axis robotic arm 1 can be controlled to retreat to avoid affecting the camera 22, thereby protecting the camera 22.

[0024] In this embodiment, the material of the elastic anti-collision ring 23 is silicone or rubber. Furthermore, by arranging a reinforcement ring 25 on the inner side of the elastic anti-collision ring 23, the structure of the elastic anti-collision ring 23 can be strengthened. It can be understood that when the elastic anti-collision ring 23 collides with an object, the elastic anti-collision ring 23 itself has the ability to deform and can play a buffering role, while the reinforcement ring 25 can support the elastic anti-collision ring 23, so that the elastic anti-collision ring 23 can withstand stronger impact.

[0025] Regarding the cooperation between the camera 22 and the channel 211, specifically, a guide rail 26 is provided in the channel 211 and arranged along the length direction of the channel 211. A slider 27 is provided on the guide rail 26 to slide with the guide rail 27. The camera 22 is connected to the slider 27. The cooperation between the guide rail 26 and the slider 27 can drive the camera 22 to move up and down. In this embodiment, the camera 22 can extend outward from the shell 21. By shortening the focal length with the photographed object, the image can be made clearer, which is conducive to subsequent detection. Preferably, a guide rail 26 clamp can be assembled on the guide rail 26 to cooperate with the slider 27 for fixation, ensuring that the slider 27 remains stable after sliding to the predetermined position to cooperate with the camera 22 for shooting.

[0026] In order to further enhance the overall strength of the reinforcement ring 25, in some embodiments, the reinforcement ring 25 specifically includes an inner ring 251 and an outer ring 252. The inner ring 251 and the outer ring 252 are coaxially arranged, and a plurality of reinforcement rods 253 are connected between the inner ring 251 and the outer ring 252. The plurality of reinforcement rods 253 are equidistantly distributed in a circular shape. The camera 22 passes through the inner ring 251. That is, the slider 27 drives the camera 22 to slide from the channel 211 of the housing 21 and pass through the inner ring 251 to be exposed externally.

[0027] Preferably, the number of reinforcing rods 253 is at least three. In this embodiment, the number of reinforcing rods 253 is three, and the clamps between adjacent reinforcing rods 253 are 120°. The inner ring 251 is used in conjunction with the reinforcing rods 253 to support the outer ring 252, thereby increasing the strength of the outer ring 252 so that the outer ring 252 can withstand stronger impacts. That is, the reinforcement ring 25 of this embodiment is not only used to support the elastic anti-collision ring 23, but its inner ring 251 also encloses the camera 22 therein. The reinforcement ring 25 or the inner ring 251 can also protect the camera 22.

[0028] On the basis of the above embodiment, by optimizing the structure of the outer ring 252, it can be more firmly installed in the elastic anti-collision ring 23. Specifically, the elastic anti-collision ring 23 is connected to the outer bottom of the outer ring 252. The outer top of the outer ring 252 is provided with a protrusion 2521. The inner wall of the channel 211 is provided with a groove for installing the protrusion 2521. The provision of the protrusion 2521 can prevent the reinforcement ring 25 from falling off from the bottom.

[0029] Preferably, a control center is also included, and the multi-axis robotic arm 1, the pressure sensor 24, and the camera 22 are electrically connected to the control center respectively, and the control center is also used to control the guide rail 26 and the slider 27. When a collision occurs, the signal generated by the pressure sensor 24 being triggered will be transmitted to the control center or the multi-axis robotic arm 1. The control center controls the multi-axis robotic arm 1 to retreat, or the multi-axis robotic arm 1 retreats after receiving the signal sent by the pressure sensor 24, so as to avoid a secondary collision and damage to the camera 22.

[0030] It should be noted that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Therefore, a feature designated as "first" or "second" may explicitly or implicitly include one or more of the aforementioned features.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A visual inspection device suitable for small welded parts of a vehicle body, characterized in that: It includes a multi-axis robotic arm and a detection device connected to the multi-axis robotic arm, the detection device includes a shell and a camera, the shell is provided with a channel running through from top to bottom, the camera is slidably connected in the channel, and an elastic anti-collision ring arranged around the channel is provided at the outlet of the channel, the elastic anti-collision ring has a built-in pressure sensor, and the pressure sensor is electrically connected to the multi-axis robotic arm.

2. A visual inspection device for small welded parts of a vehicle body according to claim 1, characterized in that: A reinforcement ring is provided on the inner side of the elastic anti-collision ring.

3. A visual inspection device for small welded parts of a vehicle body according to claim 2, characterized in that: The reinforcement ring includes an inner ring and an outer ring. The inner ring and the outer ring are coaxially arranged, and a plurality of reinforcement rods are connected between the inner ring and the outer ring. The camera passes through the inner ring.

4. A visual inspection device for small welded parts of a vehicle body according to claim 3, characterized in that: The elastic anti-collision ring is connected to the outer bottom of the outer ring, the outer top of the outer ring is provided with a protrusion, and the inner wall of the channel is provided with a groove for installing the protrusion.

5. The visual inspection device for small welded parts of a vehicle body according to claim 1, characterized in that: A guide rail is provided in the channel and is arranged along the length direction of the channel. A slider that slides and cooperates with the guide rail is provided on the guide rail, and the camera is connected to the slider.

6. The visual inspection device for small welded parts of a vehicle body according to claim 3, characterized in that: The plurality of reinforcing rods are distributed in a circular shape with equal distances.

7. The visual inspection device for small welded parts of a vehicle body according to claim 6, characterized in that: The number of the reinforcing rods is at least three.

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