Device for plate surface detection

Abstract

The utility model discloses a device for plate surface detection, which comprises a detection table, the detection table is a conveying mechanism and is provided with a driving assembly which is in transmission connection with the detection table, the detection table is detachably connected to a bottom support, and the bottom support is detachably connected with a line laser supporting frame which can be horizontally adjusted. The line laser supporting frame is arranged to be in a gantry type and is adjustably connected with a line laser fixing support used for installing and fixing the laser transmitter. A limiting groove is formed in the inner side of a vertical support of the line laser supporting frame, the line laser fixing support comprises a fixing plate and adjusting plates, the adjusting plates are perpendicularly arranged on the two sides of the fixing plate, mounting grooves used for fixing a laser transmitter are formed in the fixing plate in parallel, and fixing screw holes and adjusting grooves used for being connected with the limiting groove in a matched mode are formed in the adjusting plates. The adjusting groove is an arc-shaped hole used for adjusting the line laser detection angle. The position and angle of the line laser transmitter can be adjusted according to the size, thickness and other characteristics of a to-be-detected plate, errors caused by plate shaking and deformation are avoided, and better detection is achieved.

Description

Technical Field

[0001] The utility model relates to a plate surface detection technology, in particular to a device for plate surface detection. Background Art

[0002] In production and life, plates can be seen everywhere. Whether they are hot-rolled or cold-rolled metal plates that are pressed into flat sheets under thermal stress, or asbestos tiles and metal corrugated tiles used in house construction, they all have one thing in common. When carrying out high-quality production and life, the requirements for their respective plate shapes are relatively strict.

[0003] After metal sheets are formed, as the temperature drops, they may become uneven in the middle and warp at the edges due to uneven internal stress distribution, external ambient temperature, and other factors during processing, transportation, and transport. When the deformation reaches a certain level, it will seriously affect subsequent production. Furthermore, due to the high density of metal sheets, the cost of returning them to the factory after leaving the factory is extremely high, so the problem cannot be removed. For example, asbestos tiles and corrugated metal tiles used in the construction industry, according to the National Cement and Concrete Product Quality Inspection and Testing Center, tiles with good shape can last for decades. However, products with shape problems not only have a greatly reduced service life, but also may be installed loosely during the period of use, making them more vulnerable to typhoons.

[0004] In order to reduce the occurrence of various situations caused by the above-mentioned plate shape, before the relevant materials are put into use, their plate shape is detected, plates with different deformations are distinguished, and they are classified and processed. Plates with good plate shape are used directly, and plates with problems are traced back to their source and optimized and improved to improve production efficiency. Publication No. CN111054782A discloses a plate shape detection device and method for wide and thick plates, which is provided with a roller, a gantry, and a fixed beam of a detection device. The roller is set below the gantry, and a fixed beam of a detection device is fixed on the top of the gantry. An industrial camera group unit is provided on one side of the fixed beam of the detection device. The industrial camera group unit includes at least two industrial cameras, and a plate speed measurement unit is provided between the industrial cameras. A vibration auxiliary measurement unit is provided on the other side of the fixed beam of the detection device. A multi-line laser is provided between the vibration auxiliary measurement units. The industrial camera group unit, the plate speed measurement unit, and the vibration auxiliary measurement unit are all connected to the industrial computer system through a cable drag chain, and the industrial computer system is connected to the straightening machine control cabinet through a communication cable. The present invention can realize plate shape detection during the plate correction process, improve the automation and intelligence level of the production line, and enhance the efficiency of plate shape correction and forming.

[0005] The method described in the above patent mainly uses the coordination of cameras and lasers to perform measurements to achieve the purpose of detecting wide and thick plates. However, the coordination between the camera and the laser requires a large amount of data calculation. At the same time, because the camera and the laser are set separately, when the conveying device conveys wide and thick plates, there is a problem of coordination between the camera and the laser, which may cause the plate to shake up and down. In the case of plate deformation, additional errors are introduced, which increases the workload and affects the accuracy. Utility Model Content

[0006] The purpose of the utility model is to provide a device for plate surface detection, which can adjust the position and angle of the line laser emitter according to the size, thickness and other characteristics of the plate to be tested, avoid errors caused by plate jitter and deformation, and achieve better detection.

[0007] The utility model is realized through the following technical solutions:

[0008] A device for plate surface inspection, comprising an inspection platform, the inspection platform being a transmission mechanism and provided with a drive assembly in transmission connection therewith, the inspection platform being detachably connected to a bottom bracket, the bottom bracket being provided with a plurality of connection assemblies for connecting to a linear laser support frame, the connection assemblies being respectively located at the center of the inspection platform, one side of the inspection platform in the direction of incoming material, and the end point of the inspection platform in the direction of feeding material, the linear laser support frame being arranged in a gantry style and being adjustably connected to a linear laser fixing bracket for mounting and fixing a laser emitter;

[0009] A limiting groove is provided on the inner side of the vertical bracket of the line laser support frame, and the line laser fixing bracket includes a fixing plate and an adjustment plate. The adjustment plate is vertically arranged on both sides of the fixing plate, and mounting grooves for fixing the laser emitter are provided in parallel on the fixing plate. A fixing screw hole and an adjustment groove for cooperating with the limiting groove are provided on the adjustment plate. The adjustment groove is an arc-shaped hole for adjusting the line laser detection angle.

[0010] Preferably, the linear laser support frame is erected on one side of the material inlet direction of the detection platform, and the detection direction of the laser emitter is toward the end point of the material feeding direction of the detection platform.

[0011] Preferably, the linear laser support frame is erected above the end point of the feeding direction of the detection platform, and the detection direction of the laser emitter is vertically downward.

[0012] Preferably, the line laser support frame is installed directly above the detection platform, and the detection direction of the laser emitter is vertically downward.

[0013] Preferably, the mounting slots are arranged in two rows in parallel, and any laser emitter is fixedly connected to each group of two rows of mounting slots by fixing screws.

[0014] Preferably, the inspection platform includes a conveyor belt, a power wheel, a driven wheel and a connecting rod. The two sides of the power wheel and the driven wheel are movably connected to the two ends of the connecting rod through a rotating shaft, and the connecting rod is detachably connected to the bottom bracket. The conveyor belt is arranged on the outer cylinder wall of the power wheel and the driven wheel.

[0015] Furthermore, the driving assembly includes a driving motor and a motor driving wheel, the motor driving wheel is connected to the output shaft of the driving motor, and the motor driving wheel is transmission-connected to the power wheel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present application detects the plate by installing multiple groups of laser emitters fixed by a line laser fixed bracket to obtain surface contour point cloud data of the plate surface to achieve rapid detection, and the detection table of the device is a conveying mechanism to transport and stretch the plate to be tested, and cooperates with several groups of connecting components at different positions set on the bottom bracket to adjust the connection orientation of the line laser support bracket, and adjusts the position and angle of the line laser emitter according to the size, thickness and other characteristics of the plate to be tested through the adjustment slot on the adjustment plate of the line laser fixed bracket, which can avoid errors caused by plate jitter and deformation and achieve better detection;

[0018] (2) The device sets three sets of line laser support frame positions and detection angles. The positions and angles of each set are suitable for plates of different sizes and thicknesses, which are suitable for practical engineering applications, making the detection process more efficient and the results more accurate.

[0019] (3) The present application sets up a two-part detachable bottom bracket and a line laser support frame, which can improve the application scenarios of the device and improve the applicability of the device. At the same time, because the setting method is simple and easy to adjust, it is more flexible than existing existing detection devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model;

[0021] Figure 2 This is a front view of Example 1 of the utility model;

[0022] Figure 3 This is a structural diagram of the centerline laser fixing bracket of the utility model;

[0023] Figure 4 This is a schematic diagram of the utility model for detecting position angles.

[0024] In the figure: 1. Testing table; 11. Connecting rod; 2. Driving assembly; 3. Bottom bracket; 4. Line laser support frame; 5. Laser emitter; 6. Line laser fixing bracket; 61. Fixing plate; 62. Adjustment plate; 63. Mounting slot; 64. Fixing screw hole; 65. Adjustment slot. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to specific embodiments, which are intended to explain rather than limit the present invention.

[0026] Example 1

[0027] refer to Figure 1 and Figure 2 As shown, this embodiment provides a device for plate surface detection, including a detection table 1, which is a conveying mechanism. The detection table 1 is supported by a bottom bracket 3, and a wire laser support frame 4 is provided on the bottom bracket 3. The wire laser support frame 4 is located on the left side of the detection table 1, and the conveying direction of the conveying mechanism is from right to left. The top of the wire laser support frame 4 is connected to a wire laser fixing bracket 6, and several groups of laser emitters 5 are installed on the wire laser fixing bracket 6.

[0028] The inspection platform 1 includes a conveyor belt, a power wheel, a driven wheel and a connecting rod 11. The two sides of the power wheel and the driven wheel are movably connected to the two ends of the connecting rod 11 through a rotating shaft, and the connecting rod 11 is detachably connected to the bottom bracket 2. The conveyor belt is arranged on the outer cylinder wall of the power wheel and the driven wheel, and realizes the function of bearing and plate transmission of the inspection platform 1 through transmission with the drive component 2. The drive component 2 is arranged at the bottom of one side of the power wheel of the inspection platform 1, and the drive component 2 includes a driving motor and a motor driving wheel. The motor driving wheel is connected to the output shaft of the driving motor, and the motor driving wheel is connected to the power wheel. The motor driving wheel is driven to rotate by the operation of the driving motor, thereby driving the power wheel to rotate. At the same time, the conveyor belt moves to transport the plate to be inspected.

[0029] The laser support frame 4 is set as a gantry style, including two vertical supports and a crossbeam. Figure 3 As shown, the line laser fixing bracket 6 includes a fixing plate 61 and an adjustment plate 62. The adjustment plate 62 is vertically arranged on both sides of the fixing plate 61 and connected to the vertical brackets on both sides. Two rows of mounting slots 63 are provided on the fixing plate 61. The mounting slots 63 are designed according to the size of the laser emitter 5. Each laser emitter 5 is fixed by two mounting slots 63 and is fixedly connected to the line laser fixing bracket 6 with the mounting slots 63 by fixing screws. The detection position of the laser emitter 5 in the mounting slot 63 can be moved according to the shape, thickness and other characteristics of the plate to be detected, or multiple laser emitters 5 can be installed for use to achieve full coverage of image acquisition.

[0030] The adjusting plate 62 is provided with a fixing screw hole 64 and an adjusting slot 65. The inner side of the vertical brackets on both sides of the line laser support frame 4 is provided with a limiting slot. The corresponding detection height is set by threading the fixing screw hole 64 and the limiting slot using a limiting bolt, that is, the height of the line laser fixed bracket 6 is determined. In addition, the adjusting slot 65 is an arc hole. When the detection height position is set, for example Figure 4 After the detection position A shown in the figure is reached, the angle of the laser emitter 5 is adjusted through the limit groove. In order to enable the laser emitter 5 to collect a complete surface image, the line laser fixing bracket 6 is adjusted to a suitable angle, for example Figure 4 After the line laser angle a is adjusted, the limiting bolts pass through the adjustment slots 65 and are threadedly fixed in the limiting slots in the brackets on both sides to complete the adjustment of the collection angle.

[0031] According to the characteristics of the plate, the detection position A is mainly for thinner plates. The entire plate will be deformed when it moves into the detection range as the conveyor belt of the detection table 1 moves. Here, it is subjected to tension at both ends, which can better show the condition of the plate itself.

[0032] Example 2

[0033] This embodiment provides a device for plate surface detection, including a detection table 1, which is a conveying mechanism. The detection table 1 is supported by a base bracket 3, and a linear laser support frame 4 is provided on the bottom bracket 3. The linear laser support frame 4 is mounted on the upper right side of the detection table 1. The conveying direction of the conveying mechanism is from left to right. The top of the linear laser support frame 4 is connected to a linear laser fixing bracket 6, and several groups of laser emitters 5 are installed on the linear laser fixing bracket 6.

[0034] The inspection platform 1 includes a conveyor belt, a power wheel, a driven wheel and a connecting rod 11. The two sides of the power wheel and the driven wheel are movably connected to the two ends of the connecting rod 11 through a rotating shaft, and the connecting rod 11 is detachably connected to the bottom bracket 2. The conveyor belt is arranged on the outer cylinder wall of the power wheel and the driven wheel, and realizes the function of bearing the inspection platform and transmitting the plate by transmission with the drive component 2. The drive component 2 is arranged at the bottom of one side of the power wheel of the inspection platform 1, and the drive component 2 includes a driving motor and a motor driving wheel. The motor driving wheel is connected to the output shaft of the driving motor, and the motor driving wheel is connected to the power wheel. The motor driving wheel is driven to rotate by the operation of the driving motor, thereby driving the power wheel to rotate. At the same time, the conveyor belt moves to transport the plate to be inspected.

[0035] The line laser support frame 4 is configured in a gantry style and includes vertical supports on both sides and a horizontal beam. The line laser fixed support 6 includes a fixed plate 61 and an adjustment plate 62. The adjustment plate 62 is vertically arranged on both sides of the fixed plate 61 and connected to the vertical supports on both sides. Two rows of mounting slots 63 are provided on the fixed plate 61. The mounting slots 63 are designed according to the size of the laser emitter 5. Each laser emitter 5 is fixed by two mounting slots 63 and is fixedly connected to the line laser fixed support 6 with the mounting slots 63 by fixing screws. The detection position of the laser emitter 5 in the mounting slot 63 can be moved according to the shape, thickness and other characteristics of the plate to be detected, or multiple laser emitters 5 can be installed for use together to achieve full coverage of image acquisition.

[0036] The adjusting plate 62 is provided with a fixing screw hole 64 and an adjusting slot 65. The inner side of the vertical brackets on both sides of the line laser support frame 4 is provided with a limiting slot. The corresponding detection height is set by threading the fixing screw hole 64 and the limiting slot using a limiting bolt, that is, the height of the line laser fixed bracket 6 is determined. In addition, the adjusting slot 65 is an arc hole. When the detection height position is set, for example Figure 4 After the detection position B is reached, the laser emitter 5 is adjusted in angle through the limit slot. In order to enable the laser emitter 5 to capture a complete surface image, the line laser fixing bracket 6 is adjusted to a suitable angle, for example Figure 4 After the line laser angle b is adjusted, the limiting bolts pass through the adjustment slots 65 and are threadedly fixed in the limiting slots in the brackets on both sides to complete the adjustment of the collection angle.

[0037] According to the characteristics of the plate, detection position B is mainly aimed at large plates to prevent the large plates to be tested from tilting as a whole due to uneven bottom support force at both ends of the transmission belt during the transmission process, which may affect the detection results.

[0038] Example 3

[0039] This embodiment provides a device for plate surface detection, including a detection table 1, which is a conveying mechanism. The detection table 1 is supported by a bottom bracket 3, and a wired laser support frame 4 is connected to the bottom bracket 3. The wired laser support frame 4 is mounted directly above the detection table 1. The top of the wired laser support frame 4 is connected to a wired laser fixing bracket 6, and several groups of laser emitters 5 are installed on the wired laser fixing bracket 6.

[0040] The inspection platform 1 includes a conveyor belt, a power wheel, a driven wheel and a connecting rod 11. The two sides of the power wheel and the driven wheel are movably connected to the two ends of the connecting rod 11 through a rotating shaft, and the connecting rod 11 is detachably connected to the bottom bracket 2. The conveyor belt is arranged on the outer cylinder wall of the power wheel and the driven wheel, and realizes the function of bearing the inspection platform and transmitting the plate by transmission with the drive component 2. The drive component 2 is arranged at the bottom of one side of the power wheel of the inspection platform 1, and the drive component 2 includes a driving motor and a motor driving wheel. The motor driving wheel is connected to the output shaft of the driving motor, and the motor driving wheel is connected to the power wheel. The motor driving wheel is driven to rotate by the operation of the driving motor, thereby driving the power wheel to rotate. At the same time, the conveyor belt moves to transport the plate to be inspected.

[0041] The line laser support frame 4 is configured in a gantry style and includes vertical supports on both sides and a horizontal beam. The line laser fixed support 6 includes a fixed plate 61 and an adjustment plate 62. The adjustment plate 62 is vertically arranged on both sides of the fixed plate 61 and connected to the vertical supports on both sides. Two rows of mounting slots 63 are provided on the fixed plate 61. The mounting slots 63 are designed according to the size of the laser emitter 5. Each laser emitter 5 is fixed by two mounting slots 63 and is fixedly connected to the line laser fixed support 6 with the mounting slots 63 by fixing screws. The detection position of the laser emitter 5 in the mounting slot can be moved according to the shape, thickness and other characteristics of the plate to be detected, or multiple laser emitters 5 can be installed for use together to achieve full coverage of image acquisition.

[0042] The adjusting plate 62 is provided with a fixing screw hole 64 and an adjusting slot 65. The inner side of the vertical brackets on both sides of the line laser support frame 4 is provided with a limiting slot. The corresponding detection height is set by threading the fixing screw hole 64 and the limiting slot using a limiting bolt, that is, the height of the line laser fixed bracket 6 is determined. In addition, the adjusting slot 65 is an arc hole. When the detection height position is set, for example Figure 4 After the detection position C shown in the figure is reached, the angle of the laser emitter 5 is adjusted through the limit groove. In order to enable the laser emitter 5 to collect a complete surface image, the line laser fixing bracket 6 is adjusted to a suitable angle, for example Figure 4 After the line laser angle c is set, the limiting bolts pass through the adjustment slots 65 and are threadedly fixed in the limiting slots in the brackets on both sides to complete the adjustment of the collection angle.

[0043] According to the characteristics of the plate, detection position C is mainly aimed at small plates, such as tiles. The entire plate moves with the conveyor belt of the detection table into the detection range, and the bottom is fully supported to avoid the problem of small plates tilting due to the deformation of the conveyor belt, thereby avoiding affecting the detection results.

[0044] The working principle of this utility model:

[0045] Before using this device, it is necessary to adjust and install it according to the size, thickness and other characteristics of the plate to be inspected. As shown in Figure *, the entire inspection platform 1 is supported by the bottom bracket 3. The motor is driven to rotate the motor drive wheel, which drives the power wheel to rotate and causes the conveyor belt to move. According to the characteristics of the plate to be inspected, the relative position of the line laser support frame 4 and the inspection platform 1 is adjusted to perform horizontal adjustment or multiple line laser support frames 4 are added to different inspection positions according to the situation. According to the relative position, the height and angle of the laser emitter 5 are adjusted through the fixing screw hole 64 and the adjustment slot 65 on the adjustment plate 62 of the line laser fixing bracket 6. It can adapt to the detection of various different objects to be inspected and adapt to various environments, thereby realizing the docking of the production line and the continuous collection of the plate. According to the size of the plate to be inspected, the number and spacing of the laser emitters 5 on the line laser fixing bracket 6 can be changed so that multiple detection ranges are superimposed to achieve full coverage of large plates and better realize the plate surface shape detection.

[0046] The above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these embodiments. For ordinary technicians in the technical field of the present invention, without departing from the concept of the present invention, they can also make several simple deductions or substitutions, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. A device for detecting the surface of a plate, characterized in that: The invention comprises a detection platform (1), the detection platform (1) is a transmission mechanism and is provided with a driving component (2) in transmission connection therewith, the detection platform (1) is detachably connected to a bottom bracket (3), the bottom bracket (3) is provided with a plurality of connection components for connecting a line laser support frame (4), the connection components are respectively located at the center of the detection platform, one side of the detection platform in the incoming direction, and the end point of the detection platform in the feeding direction, the line laser support frame (4) is arranged in a gantry style and is adjustably connected to a line laser fixing bracket (6) for installing and fixing a laser emitter (5); A limiting groove is provided on the inner side of the vertical bracket of the line laser support frame (4); the line laser fixing bracket (6) comprises a fixing plate (61) and an adjusting plate (62); the adjusting plate (62) is vertically arranged on both sides of the fixing plate (61); a mounting groove (63) for fixing the laser emitter (5) is provided in parallel on the fixing plate (61); a fixing screw hole (64) and an adjusting groove (65) for cooperating with the limiting groove are provided on the adjusting plate (62); the adjusting groove (65) is an arc-shaped hole for adjusting the line laser detection angle.

2. The device for plate surface detection according to claim 1, characterized in that: The line laser support frame (4) is mounted on one side of the material incoming direction of the detection platform (1), and the detection direction of the laser emitter (5) is toward the end point of the material feeding direction of the detection platform (1).

3. The device for plate surface detection according to claim 1, characterized in that: The line laser support frame (4) is erected above the end point of the feeding direction of the detection platform (1), and the detection direction of the laser emitter (5) is vertically downward.

4. The device for plate surface detection according to claim 1, characterized in that: The line laser support frame (4) is erected directly above the detection platform (1), and the detection direction of the laser emitter (5) is vertically downward.

5. The device for plate surface detection according to claim 1, characterized in that: The mounting grooves (63) are arranged in two rows and several groups in parallel, and any laser emitter (5) is fixedly connected to each group of two rows of mounting grooves (63) via fixing screws.

6. The device for plate surface detection according to claim 1, characterized in that: The testing platform (1) comprises a conveyor belt, a power wheel, a driven wheel and a connecting rod (11). The two sides of the power wheel and the driven wheel are movably connected to the two ends of the connecting rod (11) through a rotating shaft, and the connecting rod (11) is detachably connected to the bottom bracket (3). The conveyor belt is arranged on the outer cylinder wall of the power wheel and the driven wheel.

7. The device for plate surface detection according to claim 6, characterized in that: The driving assembly (2) comprises a driving motor and a motor driving wheel, wherein the motor driving wheel is connected to the output shaft of the driving motor and is in transmission connection with the power wheel.

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