Automobile body deviation detection device

Abstract

The utility model relates to an automobile body deviation detection device, which belongs to the technical field of automobile body deviation detection and comprises a detection frame, a laser scanner is arranged in the detection frame, a data processing table is arranged on one side of the detection frame, and a mounting structure is arranged on the detection frame. According to the automobile body deviation detection device, the laser scanner is mounted on the mounting frame, and then the threaded rod is controlled to rotate through mechanical transmission, so that the mounting block in threaded connection with the outer surface of the threaded rod moves downwards, and the laser scanner is driven to move synchronously through the supporting table and the mounting frame; the laser scanner is automatically controlled to move so as to scan the back surface of the automobile, and the mounting structure and the driving structure are arranged on the top and the side surfaces of the detection frame and the rear side wall of the inner cavity, so that all the side surfaces, the back surface and the top surface of the automobile can be scanned, and the scanning efficiency is improved; and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive body deviation detection technology, specifically an automotive body deviation detection device. Background Technology

[0002] Automotive body deviation detection utilizes deviation detection devices to accurately measure and evaluate the deviations between the dimensions of various parts of the automotive body and preset standard dimensions. Based on different principles, these devices can be categorized into mechanical contact detection devices, optical detection devices, and coordinate measuring machines (CMMs). Optical detection devices utilize laser scanning detection principles, using a laser beam to scan the automotive body and obtaining geometric information about the body surface by measuring parameters such as laser reflection time, reflection angle, or light intensity changes. Alternatively, machine vision detection principles, based on computer vision technology, use cameras to capture images of the automotive body and then analyze these images using image processing algorithms. Optical detection devices are widely used on automotive production lines, especially for detecting parts with high requirements for exterior quality and complex shapes.

[0003] Currently, existing technologies utilize laser scanning to inspect car bodies. However, due to differences in height, length, and width among different car models, workers need to use handheld laser scanners to scan the car's surface, resulting in high labor intensity and long scanning time. Therefore, a car body deviation detection device is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vehicle body deviation detection device with the advantages of rapid automatic scanning. It solves the problem that in actual testing, due to differences in data such as height, body length, and body width of different vehicle models, workers need to use handheld laser scanners to scan the surface of the vehicle, which leads to high labor intensity for workers and long scanning time.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vehicle body deviation detection device, comprising a detection frame, a laser scanner disposed inside the detection frame, a data processing unit disposed on one side of the detection frame, and an installation structure disposed on the detection frame;

[0006] The mounting structure includes a guide frame fixedly mounted on a detection frame, a mounting block slidably mounted inside the guide frame, a guide component inside the guide frame for limiting the sliding trajectory of the mounting block, a support platform fixedly mounted on the mounting block, a mounting frame for placing a laser scanner fixedly mounted on the support platform, a protective component for fixing the laser scanner inside the mounting frame, and a drive component for controlling the movement of the mounting block on the detection frame.

[0007] Furthermore, the drive assembly includes a threaded rod rotatably mounted inside the guide frame, the mounting block being threaded onto the outer surface of the threaded rod, an asynchronous motor being fixedly mounted on the guide frame, and a transmission component being provided on the asynchronous motor for driving the threaded rod to rotate.

[0008] Furthermore, there are three laser scanners and three mounting structures, which are respectively located on the inner top wall, the rear side wall of the inner cavity, and the left side wall of the inner cavity of the detection frame, and the data processing unit is fixedly installed on the left side of the detection frame.

[0009] Furthermore, the guiding component includes a guide rod, which is fixedly installed inside the guide frame. A connecting hole is provided inside the mounting block, and one end of the guide rod passes through the connecting hole. The inner wall of the connecting hole is slidably connected to the outer surface of the guide rod.

[0010] Furthermore, the protective component includes two electric push rods and two L-shaped clamping plates. The two L-shaped clamping plates are slidably installed inside the mounting frame, and the two electric push rods are fixedly installed on the left and right sides of the mounting frame. The telescopic ends of the two electric push rods are fixedly connected to the two L-shaped clamping plates respectively.

[0011] Furthermore, the support platform includes an L-shaped plate and a fixing screw. The top of the L-shaped plate is welded to the bottom of the mounting frame. One end of the fixing screw passes through the L-shaped plate and extends into the interior of the mounting block. The fixing screw is threadedly connected to the mounting block.

[0012] Furthermore, a displacement sensor is fixedly installed on the top of the mounting block, and the displacement sensor is electrically connected to the asynchronous motor.

[0013] Furthermore, the transmission component includes a belt and two pulleys, with the two pulleys respectively fixedly mounted on the outer surfaces of the asynchronous motor output shaft and the threaded rod, and the belt drive is mounted on the two pulleys.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This vehicle body deviation detection device, through its mounting structure, allows a laser scanner to be installed on a mounting frame. An asynchronous motor is then activated, and a threaded rod is rotated via mechanical transmission. This causes the threaded mounting block on the outer surface of the rod to move downwards, thereby driving the laser scanner synchronously through the support platform and mounting frame. This achieves automatic control of the laser scanner's movement, scanning the rear of the vehicle. Furthermore, by incorporating mounting and drive structures on the top, sides, and rear wall of the inner cavity of the detection frame, the device can scan the entire side, rear, and top surface of the vehicle, improving scanning efficiency and reducing the workload of operators, thus enhancing the practicality of the vehicle body deviation detection device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Enlarged view of point A in the image;

[0018] Figure 3 This is a three-dimensional schematic diagram of the structural mounting block, support platform, and protective components of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the present utility model. Figure 2 Front view of the mounting frame and laser scanner.

[0020] In the diagram: 1. Detection frame; 2. Laser scanner; 3. Data processing unit; 41. Guide frame; 42. Mounting block; 43. Guide component; 44. Support platform; 45. Mounting frame; 46. Protective component; 47. Threaded rod; 48. Asynchronous motor; 49. Transmission component. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4The vehicle body deviation detection device in this embodiment includes a detection frame 1, a laser scanner 2 is installed inside the detection frame 1, a data processing unit 3 is installed on one side of the detection frame 1, and an installation structure is installed on the detection frame 1. There are three laser scanners 2 and three installation structures, which are respectively located on the inner top wall, the rear side wall of the inner cavity and the left side wall of the inner cavity of the detection frame 1. The data processing unit 3 is fixedly installed on the left side of the detection frame 1.

[0023] Please see Figures 1 to 4 In this embodiment, the installation structure includes a guide frame 41 fixedly mounted on the detection frame 1. An installation block 42 is slidably mounted inside the guide frame 41. A guide component 43 is provided inside the guide frame 41 to limit the sliding trajectory of the installation block 42. The guide component 43 includes a guide rod, which is fixedly mounted inside the guide frame 41. A connecting hole is provided inside the installation block 42, and one end of the guide rod passes through the connecting hole. The inner wall of the connecting hole is slidably connected to the outer surface of the guide rod, thereby limiting the sliding trajectory of the installation block 42 inside the guide frame 41. The installation block 42 is fixed with... A support platform 44 is installed, and a mounting frame 45 for placing the laser scanner 2 is fixedly installed on the support platform 44. The support platform 44 includes an L-shaped plate and fixing screws. The top of the L-shaped plate is welded to the bottom of the mounting frame 45. One end of the fixing screw passes through the L-shaped plate and extends into the interior of the mounting block 42. The fixing screw is threadedly connected to the mounting block 42, which facilitates the replacement of different mounting frames 45 to install different models of laser scanners 2. The interior of the mounting frame 45 is provided with a protective component 46 for fixing the laser scanner 2. The detection frame 1 is provided with a drive component for controlling the movement of the mounting block 42.

[0024] The protective component 46 includes two electric push rods and two L-shaped clamping plates. The two L-shaped clamping plates are slidably installed inside the mounting frame 45, and the two electric push rods are fixedly installed on the left and right sides of the mounting frame 45. The telescopic ends of the two electric push rods are fixedly connected to the two L-shaped clamping plates, so as to use the two L-shaped clamping plates to clamp and fix the laser scanner 2.

[0025] Using the above technical solution, the laser scanner 2 is placed inside the mounting frame 45. The two electric push rods in the protective component 46 are activated, thereby controlling the two L-shaped clamping plates to move to the opposite side and clamp and fix the position of the laser scanner 2. The other two laser scanners 2 are installed in the same way. The drive component controls the mounting block 42 to drive the support platform 44 to move, thereby controlling the laser scanners 2 inside the mounting frame 45 to move synchronously. This controls the laser scanner 2 on the rear side wall of the inner cavity of the detection frame 1 to move from top to bottom, the laser scanner 2 on the left side wall of the inner cavity of the detection frame 1 to move backward, and the laser scanner 2 on the top wall of the inner cavity of the detection frame 1 to move backward, thereby automatically scanning the side, back and top of the car.

[0026] Please see Figures 1 to 4 In this embodiment, the drive assembly includes a threaded rod 47 rotatably mounted inside the guide frame 41, and a mounting block 42 threadedly mounted on the outer surface of the threaded rod 47, so that the rotation of the threaded rod 47 can control the movement of the mounting block 42. An asynchronous motor 48 is fixedly mounted on the guide frame 41, and a transmission component 49 for driving the threaded rod 47 to rotate is provided on the asynchronous motor 48. The transmission component 49 includes a belt and two pulleys. The two pulleys are fixedly mounted on the output shaft of the asynchronous motor 48 and the outer surface of the threaded rod 47, respectively. The belt drive is mounted on the two pulleys, so that the rotating output shaft can drive the rotation of the threaded rod 47 by the belt.

[0027] A displacement sensor is fixedly installed on the top of the mounting block 42. The displacement sensor is electrically connected to the asynchronous motor 48, which facilitates the shutdown of the asynchronous motor 48 after the mounting block 42 has moved to its maximum distance.

[0028] By adopting the above technical solution, the asynchronous motor 48 is started and the output shaft is driven to rotate. The rotating output shaft drives the threaded rod 47 to rotate via the belt in the transmission component 49, which in turn drives the support platform 44 to move via the mounting block 42 connected to the threaded rod 47.

[0029] The working principle of the above embodiments is as follows:

[0030] In use, the vehicle body deviation detection device involves placing the laser scanner 2 inside the mounting frame 45, activating the two electric push rods in the protective component 46 to control the two L-shaped clamping plates to move to opposite sides and clamp and fix the position of the laser scanner 2. The other two laser scanners 2 are installed in the same manner. The asynchronous motor 48 is activated and drives the output shaft to rotate. The rotating output shaft, via the belt in the transmission component 49, drives the threaded rod 47 to rotate. This causes the mounting block 42, threaded to the outer surface of the threaded rod 47, to move the support platform 44, thereby controlling the synchronous movement of the laser scanners 2 inside the mounting frame 45. This controls the laser scanners 2 on the rear side wall of the inner cavity of the detection frame 1 to move downwards, the laser scanners 2 on the left side wall of the inner cavity of the detection frame 1 to move backwards, and the laser scanners 2 on the top wall of the inner cavity of the detection frame 1 to move backwards, thus automatically scanning the sides, rear, and top of the vehicle.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting deviations in a motor vehicle body, comprising a detection frame (1), characterized in that: The inside of the detection frame (1) is provided with a laser scanner (2), one side of the detection frame (1) is provided with a data processing machine table (3), and the detection frame (1) is provided with a mounting structure; The mounting structure comprises a guide frame (41) fixedly mounted on the detection frame (1), a mounting block (42) slidably mounted in the guide frame (41), a guide component (43) provided in the guide frame (41) for limiting the sliding track of the mounting block (42), a support table (44) fixedly mounted on the mounting block (42), an installation frame (45) for placing the laser scanner (2) fixedly mounted on the support table (44), and a protection component (46) provided in the installation frame (45) for fixing the laser scanner (2), and a driving assembly for controlling the movement of the mounting block (42) is arranged on the detection frame (1). The number of the laser scanner (2) and the mounting structure is three, and they are respectively arranged on the inner top wall, the inner cavity rear side wall and the inner cavity left side wall of the detection frame (1), and the data processing machine table (3) is fixedly mounted on the left side of the detection frame (1).

2. The apparatus according to claim 1, wherein: The driving assembly comprises a threaded rod (47) rotatably mounted in the guide frame (41), the mounting block (42) is threadedly mounted on the outer surface of the threaded rod (47), an asynchronous motor (48) is fixedly mounted on the guide frame (41), and a transmission component (49) for driving the threaded rod (47) to rotate is arranged on the asynchronous motor (48).

3. The apparatus for detecting deviation of a vehicle body according to claim 1, characterized in that: The guide component (43) comprises a guide rod fixedly mounted in the guide frame (41), a connecting hole is formed in the inside of the mounting block (42), one end of the guide rod penetrates through the connecting hole, and the inner wall of the connecting hole and the outer surface of the guide rod are in sliding connection.

4. The apparatus for detecting deviation of a vehicle body according to claim 1, characterized in that: The protection component (46) comprises two electric push rods and two L-shaped clamping plates, the two L-shaped clamping plates are slidably mounted in the inside of the installation frame (45), the two electric push rods are fixedly mounted on the left and right sides of the installation frame (45), and the extension ends of the two electric push rods are fixedly connected with the two L-shaped clamping plates.

5. The apparatus for detecting deviation of a vehicle body according to claim 1, characterized in that: The support table (44) comprises an L-shaped plate and a fixed screw, the top of the L-shaped plate is welded with the bottom of the installation frame (45), one end of the fixed screw penetrates through the L-shaped plate and extends into the inside of the mounting block (42), and the fixed screw is threadedly connected with the mounting block (42).

6. The apparatus for detecting deviation of a vehicle body according to claim 2, characterized in that: A displacement sensor is fixedly mounted on the top of the mounting block (42), and the displacement sensor is electrically connected with the asynchronous motor (48).

7. The apparatus for detecting deviation of a vehicle body according to claim 2, characterized in that: The transmission component (49) comprises a belt and two belt pulleys, the two belt pulleys are fixedly mounted on the output shaft of the asynchronous motor (48) and the outer surface of the threaded rod (47), and the belt is drivingly mounted on the two belt pulleys.

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