A laser measuring device for measuring the thickness of a sheet

Abstract

The utility model relates to the technical field of board processing discloses a laser measuring device for measuring the thickness of board, including first support frame, the bottom four corners of first support frame all are fixedly arranged with universal wheel, the top fixed connection of first support frame has first electric telescopic handle, the output fixed connection of first electric telescopic handle has second support frame, through setting linear slide rail, second electric telescopic handle and laser thickness gauge, and laser thickness gauge realizes horizontal automatic scanning through linear slide rail and second electric telescopic handle, and single -time measurement can obtain the thickness data of board width direction many points, avoids the accidental error of manual single -point detection, and the accuracy promotes 30% or more, through setting infrared sensor, third electric telescopic handle and push -on plate, infrared sensor links together third electric telescopic handle and pushes the push -on plate to make the unqualified board be pushed down uniformly, and it is convenient for quick automatic screening.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to a laser measuring device for measuring sheet metal thickness. Background Technology

[0002] Sheet metal is a flat, rectangular building material plate made into a standard size. It is used in the construction industry to make components for walls, ceilings, or floors. It also often refers to metal plates that are forged, rolled, or cast. During the production of sheet metal, it is usually necessary to use measuring devices to check whether the produced sheet metal reaches the qualified thickness.

[0003] Existing sheet metal production lines generally suffer from the following technical problems in thickness detection: First, insufficient detection coverage. Traditional detection methods often use single-point or centerline sampling, which cannot comprehensively capture thickness fluctuations in the sheet metal, especially at the edges, easily creating blind spots. Second, low automation. Sorting of defective products mainly relies on manual marking and handling, which is not only slow in response but also prone to missed detections due to fatigue in mass production, leading to potential quality issues flowing into subsequent processes. Third, limited production efficiency. Manual intervention interrupts the continuity of the production process, becoming a constraint on improving the overall efficiency of the production line. Therefore, developing a device that can achieve comprehensive, rapid, and automated thickness detection and sorting is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] The purpose of this invention is to provide a laser measuring device for measuring the thickness of sheet metal, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser measuring device for measuring the thickness of a plate, comprising a first support frame.

[0006] The first support frame is fixedly equipped with casters at all four bottom corners, and a first electric telescopic rod is fixedly connected to the top of the first support frame. The output end of the first electric telescopic rod is fixedly connected to a second support frame.

[0007] Furthermore, conveyor belts are provided on the inner walls of both the left and right sides of the second support frame, and servo motors are respectively provided at the front end of the second support frame, with the output shafts of the servo motors being connected to the conveyor belts for transmission.

[0008] Furthermore, connecting rods are fixedly installed on the bottom of both the front and rear sides of the second support frame, and a support plate is fixedly connected to the bottom end of the connecting rods.

[0009] Furthermore, a linear slide rail is fixedly connected to the top of the support plate, and a slider is slidably connected in the groove of the linear slide rail.

[0010] Furthermore, a mounting plate is fixedly connected to the top of the slider, and a laser thickness gauge is fixedly connected to the mounting plate by screws.

[0011] Furthermore, a connecting plate is fixedly connected to the front side of the mounting plate.

[0012] Furthermore, a second electric telescopic rod is fixedly connected to the top front end of the support plate, and the telescopic end of the second electric telescopic rod is fixedly connected to the connecting plate.

[0013] Furthermore, a fixing plate is fixedly connected to the rear side of the second support frame, and a third electric telescopic rod is fixedly connected to the top of the fixing plate.

[0014] Furthermore, a push plate is fixedly connected to the telescopic end of the third electric telescopic rod, and an infrared sensor is provided on the right side of the third electric telescopic rod, which is fixed to the top of the second support frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By incorporating a linear slide rail, a second electric telescopic rod, and a laser thickness gauge, the laser thickness gauge achieves automatic lateral scanning via the linear slide rail and the second electric telescopic rod. A single measurement can acquire thickness data from multiple points along the width of the sheet material, avoiding the accidental errors of manual single-point inspection and improving accuracy by more than 30%. By incorporating an infrared sensor, a third electric telescopic rod, and a push plate, the infrared sensor, in conjunction with the third electric telescopic rod, pushes the push plate to uniformly push down unqualified sheets, facilitating rapid and automatic screening. The installation of casters at the bottom allows the equipment to move freely, adapting to the needs of different production lines. The installation of a first electric telescopic rod drives the second support frame to rise and fall, flexibly adapting to the inspection height of sheets of different thicknesses. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front cross-sectional view of the present invention.

[0020] Figure 3This is a schematic diagram of the right-side cross-sectional structure of this utility model.

[0021] In the diagram: 1. First support frame; 2. Casters; 3. First electric telescopic rod; 4. Second support frame; 5. Conveyor belt; 6. Servo motor; 7. Connecting rod; 8. Support plate; 9. Linear slide rail; 10. Slider; 11. Mounting plate; 12. Laser thickness gauge; 13. Connecting plate; 14. Second electric telescopic rod; 15. Fixing plate; 16. Third electric telescopic rod; 17. Push plate; 18. Infrared sensor. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] 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.

[0025] Please see Figure 1-3This utility model provides a technical solution for a laser measuring device for measuring the thickness of sheet metal: A laser measuring device for measuring the thickness of sheet metal includes a first support frame 1. Universal wheels 2 are fixedly installed at the four corners of the bottom of the first support frame 1, allowing the device to move freely and adapt to the needs of different production lines. A first electric telescopic rod 3 is fixedly connected to the top of the first support frame 1. The first electric telescopic rod 3 drives a second support frame 4 to rise and fall, flexibly adapting to the detection height of sheet metal of different thicknesses. The output end of the first electric telescopic rod 3 is fixedly connected to the second support frame 4. Input terminals are provided on the inner walls of both the left and right sides of the second support frame 4. Servo motors 6 are respectively installed at the front end of the conveyor belt 5 and the second support frame 4. The output shaft of the servo motor 6 is connected to the conveyor belt 5. Connecting rods 7 are fixedly installed at the bottom of the front and rear sides of the second support frame 4. Support plates 8 are fixedly connected to the bottom of the connecting rods 7. Linear slide rails 9 are fixedly connected to the top of the support plates 8. By setting up linear slide rails 9, second electric telescopic rods 14 and laser thickness gauges 12, the laser thickness gauges 12 realize automatic transverse scanning through linear slide rails 9 and second electric telescopic rods 14. A single measurement can obtain multi-point thickness data in the width direction of the plate, avoiding the random error of manual single-point detection and improving the accuracy by more than 30%. A slider 10 is slidably connected in the groove of the linear slide rail 9.

[0026] A mounting plate 11 is fixedly connected to the top of the slider 10. A laser thickness gauge 12 is fixedly connected to the mounting plate 11 by screws. A connecting plate 13 is fixedly connected to the front side of the mounting plate 11. A second electric telescopic rod 14 is fixedly connected to the top of the front end of the support plate 8. The telescopic end of the second electric telescopic rod 14 is fixedly connected to the connecting plate 13. A fixing plate 15 is fixedly connected to the rear side of the second support frame 4. A third electric telescopic rod 16 is fixedly connected to the top of the fixing plate 15. A push plate 17 is fixedly connected to the telescopic end of the third electric telescopic rod 16. An infrared sensor 18 is provided on the right side of the third electric telescopic rod 16. By setting the infrared sensor, the third electric telescopic rod 16 and the push plate 17, the infrared sensor links the third electric telescopic rod 16 to push the push plate 17 so that the unqualified plates are pushed down uniformly, which facilitates rapid automatic screening. The infrared sensor 18 is fixed to the top of the second support frame 4.

[0027] This invention also includes a central controller. The servo motor 6, the first electric telescopic rod 3, the second electric telescopic rod 14, the third electric telescopic rod 16, the laser thickness gauge 12, and the infrared sensor 18 are all electrically connected to the central controller. The central controller is responsible for receiving signals from the laser thickness gauge 12 and the infrared sensor 18, and controlling the start-stop and action sequence of each motor and electric telescopic rod according to the preset program logic, thereby realizing the automated operation of the entire device.

[0028] The workflow of this utility model is as follows, and it is uniformly coordinated by a central controller:

[0029] 1. Plate feeding and positioning: Start the servo motor 6, and the conveyor belt 5 will feed the plate into the detection area. A photoelectric sensor is installed at the entrance of the measurement area of ​​the second support frame 4. When the photoelectric sensor detects the front end of the plate, it sends a signal to the central controller. The central controller then instructs the servo motor 6 to stop rotating, so that the plate is accurately positioned below the scanning start position of the laser thickness gauge 12.

[0030] 2. Automatic Scanning and Measurement: After the material is positioned, the central controller activates the second electric telescopic rod 14, driving the slider 10 equipped with the laser thickness gauge 12 to move laterally at a constant speed along the linear slide rail 9, scanning the entire width of the material. During this process, the laser thickness gauge 12 continuously collects thickness data and sends it to the central controller in real time.

[0031] 3. Data Processing and Judgment: After receiving complete thickness data, the central controller compares it with internally preset upper and lower thresholds for acceptable thickness. If all data points are within the threshold range, the product is judged as acceptable; if any data point exceeds the threshold, the product is judged as unacceptable.

[0032] 4. Sorting and Conveying: After the judgment is completed, the central controller restarts the servo motor 6. If it is a qualified product, the conveyor belt 5 directly sends it to the next process. If it is a defective product, when the board moves to the end of the device and is detected by the infrared sensor 18, the central controller commands the third electric telescopic rod 16 to extend quickly, driving the pusher plate 17 to push the defective board from the conveyor belt 5 into the designated collection area. The role of the infrared sensor 18 here is to confirm that the defective product has reached the rejection station, so as to achieve accurate rejection.

[0033] 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 laser measuring device for measuring the thickness of a plate, comprising a first support frame (1), characterized in that: The first support frame (1) is fixedly provided with universal wheels (2) at the four bottom corners, the first support frame (1) is fixedly connected to the top of the first electric telescopic rod (3), and the output end of the first electric telescopic rod (3) is fixedly connected to the second support frame (4). The second support frame (4) is provided with conveyor belts (5) on both the left and right inner walls. The second support frame (4) is provided with servo motors (6) at the front end. The output shaft of the servo motor (6) is connected to the conveyor belt (5) for transmission. The second support frame (4) is provided with connecting rods (7) at the bottom of both the front and rear sides. The bottom end of the connecting rod (7) is fixedly connected to a support plate (8). The top end of the support plate (8) is fixedly connected to a linear slide rail (9). The slide rail (9) is slidably connected to a slider (10) in the groove. The top end of the slider (10) is fixedly connected to a mounting plate (11). The mounting plate (11) is fixedly connected to a laser thickness gauge (12) by screws. The front side of the mounting plate (11) is fixedly connected to a connecting plate (13). The top end of the front end of the support plate (8) is fixedly connected to a second electric telescopic rod (14). The telescopic end of the second electric telescopic rod (14) is fixedly connected to the connecting plate (13).

2. The laser measuring device for measuring the thickness of a sheet material according to claim 1, wherein: A fixing plate (15) is fixedly connected to the rear side of the second support frame (4), and a third electric telescopic rod (16) is fixedly connected to the top of the fixing plate (15).

3. The laser measuring device for measuring the thickness of a sheet material according to claim 2, wherein: The telescopic end of the third electric telescopic rod (16) is fixedly connected to a push plate (17), and an infrared sensor (18) is provided on the right side of the third electric telescopic rod (16). The infrared sensor (18) is fixed to the top of the second support frame (4).

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