A laser detection device based on machine vision

Abstract

The utility model provides a kind of laser detection device based on machine vision, including installation platform and set on installation platform's feeding robot and carrying robot, still include: vibrating mechanism, to control the automatic drop of red material;Conveying component, to convey red material;Marking component, to mark red material;Visual inspection component is respectively used to detect the red material position on vibrating disc and detect the red material position at the end of conveyer belt;Interactive component is used to carry out data interaction with PLC, and it is convenient to control equipment each module;The utility model can be used for student to simulate practical operation in various industrial applications to PLC, touch screen, visual inspection and laser marking by setting installation platform, exercise PLC and touch screen application skill and programming ability, exercise student's robot practical operation ability, exercise student's visual inspection programming application ability, familiar with servo motor control, sensor application and other electrical principles.

Description

Technical Field

[0001] This utility model relates to the field of laser inspection equipment technology, and specifically to a laser inspection device based on machine vision. Background Technology

[0002] In the fields of industrial inspection and intelligent manufacturing, automated inspection technology combining laser marking and machine vision has become a core means of product quality control and is widely used for marking, tracing and defect detection of electronic components, precision parts and other products. However, existing laser inspection devices have significant limitations in practical applications and teaching training.

[0003] In traditional equipment, feeding, laser marking, visual inspection, and handling are mostly independent modules requiring manual intervention (such as manually transferring materials from the vibratory feeder to the marking table). A single process takes ≥30 seconds and is prone to misalignment and missed detection due to human error. Especially in mass production, efficiency bottlenecks are prominent, failing to meet the cycle time requirements of modern production lines. Industrial equipment often focuses on production efficiency without considering teaching scenarios: it lacks visual programming interfaces (such as PLC program debugging and visual algorithm parameter adjustment), making it difficult for students to intuitively understand the linkage logic of "sensor-robot-laser marking." Furthermore, the closed structure of the equipment prevents demonstration of the internal electrical control principles (such as servo motor drive and solenoid valve action), limiting teaching effectiveness. Therefore, there is an urgent need for an integrated device that combines automated feeding, high-precision visual positioning, laser marking, and robotic handling. This device should not only meet the high-efficiency and accurate inspection requirements in industrial scenarios but also serve as a teaching and training platform, helping students master core technologies such as PLC programming, machine vision, and robot control, filling the dual gaps in "production practicality" and "teaching adaptability" of existing equipment.

[0004] The above content is only used to help understand the technical solution of this utility model and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings and provide a laser detection device based on machine vision.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a laser detection device based on machine vision, including an installation platform and a loading robot and a handling robot set on the installation platform, and further including: The vibration mechanism includes a vibratory feeder hopper and a vibratory feeder body set on the installation platform, used to control the automatic dropping of red material; The conveying assembly, including a stepper motor, belt, and synchronous pulley mounted on the mounting platform, is used to convey the red material. The marking assembly includes a laser marking machine and a laser marking material table mounted on the installation platform, used to mark red materials; The vision inspection component includes a vibratory feeder vision inspection mechanism and a handling vision inspection mechanism set at both ends of the installation platform. These mechanisms are used to detect the position of red material on the vibratory feeder and provide the position data to the loading robot, and to detect the position of red material at the end of the conveyor belt and provide the position data to the handling robot, respectively. The interactive components include a mounting base on the mounting platform and a display screen and multiple buttons mounted on the mounting base, used for data interaction with the PLC to facilitate control of various modules of the equipment.

[0007] Furthermore, the output end of the stepper motor drives the belt to rotate via a synchronous pulley, and a reflective photoelectric sensor is installed above the belt.

[0008] Furthermore, the vibratory feeder hopper is mounted on the installation platform and is higher than the vibratory feeder body, and a controller for controlling its vibration is provided on one side of the vibratory feeder hopper.

[0009] Furthermore, the laser marking machine is fixedly installed above the mounting platform, and the laser marking material table includes a slide rail cylinder, a cylinder fixing plate, and a magnetic sensor, which are mounted on the mounting platform via aluminum profiles.

[0010] Furthermore, the vibratory feeder visual inspection mechanism includes a camera, a lens, and a panel light source, which are fixedly mounted on the mounting platform near the vibratory feeder body via fasteners.

[0011] Furthermore, the handling vision inspection mechanism includes a second camera, a second lens, and a ring light source that are fixedly mounted on the handling robot via a mounting bracket.

[0012] Furthermore, the mounting base is fixedly mounted on the upper surface of the mounting platform, and the display screen is fixedly mounted on one side of the mounting base.

[0013] Furthermore, one side of the mounting base is provided with a start button, a two-position rotary switch, a stop button, a reset button, and an emergency stop button in sequence.

[0014] Compared with the prior art, this utility model has the following beneficial effects: By setting up an installation platform, the production line includes simulation equipment for various industrial applications such as laser marking, robot grasping and handling, packaging, and visual sorting. Trainees can practice PLC, touch screen, visual inspection, and laser marking in various industrial applications, improve their PLC and touch screen application skills and programming abilities, enhance their robot operation skills, improve their visual inspection programming application skills, and become familiar with electrical principles such as servo motor control and sensor applications. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a side view of an embodiment of the present invention. Figure 3 This is a top view of an embodiment of the present invention. Figure 4 This is a schematic diagram of the conveying component in one embodiment of the present invention; Figure 5 This is a schematic diagram of the vibration mechanism in one embodiment of the present invention; Figure 6 This is a schematic diagram of the marking component in one embodiment of the present invention; Figure 7 This is a schematic diagram of the slide rail cylinder in one embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the visual detection component in one embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of a camera and a panel light source in one embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of camera two and ring light source in one embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the mounting base and the display screen in one embodiment of the present invention.

[0016] In the diagram: 1. Installation platform; 101. Feeding robot; 102. Handling robot; 2. Conveying assembly; 201. Stepper motor; 202. Belt; 203. Synchronous pulley; 204. Reflective photoelectric sensor; 3. Vibration mechanism; 301. Vibratory feeder hopper; 302. Vibratory feeder body; 4. Marking assembly; 401. Laser marking machine; 402. Laser marking material table; 4021. Slide rail cylinder; 5. Vision inspection assembly; 501. Vibratory feeder vision inspection... 5011, Camera 1; 5012, Lens 1; 5013, Panel Light Source; 502, Handling Vision Inspection Mechanism; 5021, Camera 2; 5022, Lens 2; 5023, Ring Light Source; 5024, Mounting Bracket; 6, Interactive Components; 601, Mounting Base; 6011, Display Screen; 6012, Start Button; 6013, Stop Button; 6014, Reset Button; 6015, Two-Position Rotary Switch; 6016, Emergency Stop Button. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] Please see Figure 1-11 .

[0021] This utility model provides a laser inspection device technical solution based on machine vision: A laser inspection device based on machine vision includes an installation platform 1 and a loading robot 101 and a handling robot 102 mounted on the installation platform 1. It also includes: a vibration mechanism 3 consisting of a vibratory feeder hopper 301 and a vibratory feeder body 302 mounted on the installation platform 1, used to control the automatic dropping of red material; a conveying assembly 2 consisting of a stepper motor 201, a belt 202, and a synchronous pulley 203 mounted on the installation platform 1, used to convey the red material; and a laser marking machine 401 mounted on the installation platform 1 and laser-marked material. The marking component 4, consisting of a platform 402, is used to mark red materials; the vision inspection component 5, consisting of a vibratory feeder vision inspection mechanism 501 and a handling vision inspection mechanism 502 located at both ends of the installation platform 1, is used to detect the position of red materials on the vibratory feeder and provide the position data to the loading robot 101, and to detect the position of red materials at the end of the conveyor belt and provide the position data to the handling robot 102, respectively; the interaction component 6, consisting of a mounting base 601 located on the installation platform 1 and a display screen 6011 and multiple buttons located on the mounting base 601, is used to interact with the PLC for data exchange, facilitating the control of various modules of the equipment.

[0022] In one embodiment, the output of the stepper motor 201 drives the belt 202 to rotate via the synchronous pulley 203, and a reflective photoelectric sensor 204 is disposed above the belt 202.

[0023] This design achieves precise control of material conveying through the transmission combination of stepper motor 201, synchronous pulley 203, and belt 202, linked with sensors. Stepper motor 201 (57-2.3nm model with DM542 driver) drives belt 202 (1967mm inner circumference, 100mm wide matte black) via synchronous pulley 203 (5M-15 tooth specification). The speed can be set to 50-150mm / s via a program to meet the needs of different material conveying rhythms. The reflective photoelectric sensor 204 (sensing distance 100mm, PNP normally open type) above belt 202 can detect the material position in real time. When the material reaches the end, it sends a signal to the PLC, triggering belt 202 to stop. The positioning accuracy is ±0.5mm, avoiding material over-positioning or accumulation. This improves efficiency by 3 times compared to traditional manual feeding, and closed-loop control is achieved through sensor feedback, significantly improving conveying stability.

[0024] In one embodiment, the vibratory feeder hopper 301 is mounted on the mounting platform 1 and is higher than the vibratory feeder body 302. A controller for controlling its vibration is provided on one side of the vibratory feeder hopper 301.

[0025] This design utilizes a high-level hopper and vibration control to achieve automatic material replenishment and orderly feeding. The vibratory feeder hopper 301 (2L capacity), being higher than the vibratory feeder body 302 (M200 flexible vibratory feeder), allows for gravity-assisted material descent. The controller adjusts the vibration frequency (50-200Hz) to control the vibration of the vibratory feeder hopper 301. When the material in the vibratory feeder body 302 is insufficient, the controller triggers the vibratory feeder hopper 301 to vibrate and replenish the material. The material slides into the vibratory feeder body 302 through an inclined channel, avoiding frequent manual feeding. When the material in the vibratory feeder body 302 is sufficient, the controller stops the operation of the vibratory feeder hopper 301, forming an automatic cycle of "replenishing when short of material and stopping when full." This improves feeding continuity by 80%, and the flexible vibration of the vibratory feeder body 302 (amplitude adjustable from 0-5mm) arranges the material in an orderly manner, facilitating identification and positioning by visual inspection mechanisms.

[0026] In one embodiment, the laser marking machine 401 is fixedly installed above the mounting platform 1, and the laser marking material table 402 includes a slide rail cylinder 4021 mounted on the mounting platform 1 via an aluminum profile, as well as a cylinder fixing plate and a magnetic sensor.

[0027] This design achieves both precise marking and safety through the collaborative structure of a laser marking machine 401 and a movable laser marking material table 402. The laser marking machine 401 (suitable for materials such as plastics) is fixed above the installation platform 1 to ensure a stable marking optical path. The slide rail cylinder 4021 (HLQ12X100S model) drives the material to move back and forth. After the loading robot 101 places the material into the circular material slot on the table, the cylinder retracts to the marking position. The magnetic sensor detects the position and triggers marking. After marking is completed, the cylinder extends, and the handling robot 102 removes the material, avoiding motion interference between the handling robot 102 and the laser marking machine 401. The aluminum profile bracket provides rigid support, ensuring the material table's repeatability accuracy is ±0.1mm and the marking position deviation is ≤0.2mm. Furthermore, the cylinder action is linked to the laser start and stop to prevent accidental laser triggering and injury, thus improving operational safety.

[0028] In one embodiment, the vibratory feeder visual inspection mechanism 501 includes a camera 5011, a lens 5012, and a panel light source 5013, which are fixedly mounted on the mounting platform 1 near the vibratory feeder body 302 by fasteners. The transport visual inspection mechanism 502 includes a camera 5021, a lens 5022, and a ring light source 5023, which are fixedly mounted on the transport robot 102 by mounting brackets 5024.

[0029] This design allows for collaborative work between two vision inspection mechanisms, enabling precise material positioning throughout the entire process. In the vibratory feeder vision inspection mechanism 501, the panel light source 5013 (adjustable brightness of 5000 lux) illuminates the red material inside the vibratory feeder body 302, while camera 5011 (equipped with an 8mm focal length lens) captures an image of the material. The visual algorithm identifies the center coordinates of the material (positioning error ≤ 0.5mm) and sends the data to the loading robot 101, guiding it to accurately grasp the material. In the handling vision inspection mechanism 502, the ring light source 5023 (360° uniform illumination) eliminates surface reflections on the material, while camera 5021 moves with the handling robot 102, capturing images of the material at the end of the conveyor belt and obtaining position data to correct the handling robot 102's grasping posture, ensuring accurate placement of the material into the next process. The mounting bracket 5024 allows for fine-tuning of the camera angle (±15°) to adapt to the inspection needs of materials of different sizes (diameter 5-30mm). The visual recognition response time is ≤ 0.3 seconds, and the robot's grasping success rate is over 99%.

[0030] In one embodiment, the mounting base 601 is fixedly disposed on the upper surface of the mounting platform 1, and the display screen 6011 is fixedly disposed on one side of the mounting base 601. The mounting base 601 is provided with a start button 6012, a two-position rotary switch 6015, a stop button 6013, a reset button 6014 and an emergency stop button 6016 in sequence on one side.

[0031] This design, through the integrated interaction of the display screen 6011 and physical buttons, achieves convenient operation and safety redundancy of the equipment. The 7-inch display screen 6011 (Kunlun Tongtai TCP7022Ni) displays the status of each module in real time (such as the material level of the vibratory feeder body 302, marking count, and robot position), supports manual control (such as starting the vibratory feeder body 302 separately and adjusting the conveyor belt speed) and I / O signal monitoring, which facilitates debugging and troubleshooting. Among the physical buttons below, the two-position rotary switch 6015 realizes the switching between "single machine / online machine" mode (single machine is used for teaching and debugging, and online machine is connected to the production line), the start button 6012 and the stop button 6013 control the overall process, the reset button 6014 can clear the alarm status, and the emergency stop button 6016 (22mm opening, normally closed design) cuts off all power in an emergency, forming a dual guarantee of "visual operation + physical safety mechanism". The operation response time is ≤0.1 seconds, taking into account both professionalism and ease of use, and is suitable for both teaching and industrial scenarios.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A laser inspection device based on machine vision, comprising an installation platform (1) and a loading robot (101) and a handling robot (102) mounted on the installation platform (1), characterized in that: It also includes: The vibration mechanism (3) includes a vibratory feeder hopper (301) and a vibratory feeder body (302) set on the installation platform (1) to control the automatic dropping of red material; The conveying assembly (2) includes a stepper motor (201), a belt (202), and a synchronous pulley (203) mounted on the mounting platform (1) for conveying red materials; The marking component (4) includes a laser marking machine (401) and a laser marking material table (402) set on the installation platform (1) for marking red materials; The visual inspection component (5) includes a vibratory feeder visual inspection mechanism (501) and a handling visual inspection mechanism (502) set at both ends of the installation platform (1), which are respectively used to detect the position of the red material on the vibratory feeder and provide the position data to the loading robot (101) and to detect the position of the red material at the end of the conveyor belt and provide the position data to the handling robot (102). The interactive component (6) includes a mounting base (601) set on the mounting platform (1) and a display screen (6011) and multiple buttons set on the mounting base (601) for data interaction with the PLC, so as to facilitate the control of various modules of the equipment.

2. The laser detection device based on machine vision according to claim 1, characterized in that: The output end of the stepper motor (201) drives the belt (202) to rotate through the synchronous pulley (203), and a reflective photoelectric sensor (204) is provided above the belt (202).

3. The laser detection device based on machine vision according to claim 1, characterized in that: The vibratory feeder hopper (301) is set on the installation platform (1) and is higher than the vibratory feeder body (302). A controller for controlling its vibration is provided on one side of the vibratory feeder hopper (301).

4. The laser detection device based on machine vision according to claim 1, characterized in that: The laser marking machine (401) is fixedly installed above the installation platform (1). The laser marking material table (402) includes a slide rail cylinder (4021) installed on the installation platform (1) via an aluminum profile, as well as a cylinder fixing plate and a magnetic sensor.

5. A laser detection device based on machine vision according to claim 1, characterized in that: The vibratory feeder visual inspection mechanism (501) includes a camera (5011), a lens (5012), and a panel light source (5013) that are fixedly mounted on the side of the installation platform (1) near the vibratory feeder body (302) by fasteners.

6. The laser detection device based on machine vision according to claim 1, characterized in that: The handling visual inspection mechanism (502) includes a second camera (5021), a second lens (5022), and a ring light source (5023) fixedly mounted on the handling robot (102) via a mounting bracket (5024).

7. A laser detection device based on machine vision according to claim 1, characterized in that: The mounting base (601) is fixedly mounted on the upper surface of the mounting platform (1), and the display screen (6011) is fixedly mounted on one side of the mounting base (601).

8. The laser detection device based on machine vision according to claim 1, characterized in that: The mounting base (601) is provided with a start button (6012), a two-position rotary switch (6015), a stop button (6013), a reset button (6014), and an emergency stop button (6016) on one side in sequence.

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