Full-automatic high-precision laser etching device

Abstract

The utility model discloses a full-automatic high-precision laser carving device which comprises a mechanical arm, a laser carving machine, a laser carving transfer mechanism and a conveying line, the laser carving transfer mechanism comprises a carrying plate used for containing products and a rotary driving device connected to the carrying plate, and the mechanical arm is arranged on one side of the laser carving transfer mechanism. The mechanical arm is used for placing a product to be subjected to laser carving on the carrier plate located at the feeding station, the rotary driving device is used for driving the carrier plate to rotate so as to transfer the product between the feeding station and the laser carving station, and the laser carving machine is used for conducting laser carving on the product located at the laser carving station. The mechanical arm is further used for transferring the products subjected to laser etching on the carrier plate located on the feeding station to the conveying line, and the conveying line receives the products transferred by the mechanical arm and conveys the products to the next station. The full-automatic laser carving machine can achieve full-automatic laser carving operation, manual cooperation is not needed, labor cost is saved, the production rhythm is accelerated, the overall production efficiency is improved, and consistency and precision of laser carving of products are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to a fully automatic high-precision laser engraving device. Background Technology

[0002] In the field of modern industrial manufacturing and processing, with the increasing demand for marking, engraving, and micro-machining processes, laser engraving machines have emerged as an advanced processing equipment. Their working principle is to use the high energy density characteristics of lasers to process materials. Specifically, a laser generator produces a laser beam, which is transmitted and focused through an optical system, concentrating the energy on a very small point to form an extremely high energy density. When the focused laser spot irradiates the surface of the material to be processed, the surface of the material will instantly undergo physical or chemical changes such as melting, vaporization, oxidation, and discoloration. At the same time, the computer control system precisely controls the irradiation position, time, and intensity of the laser, which enables various patterns, text, markings, and other processing operations to be achieved on the surface of the material.

[0003] For example, many electronic products currently have their information parameters engraved on their casings using laser engraving devices. Traditional laser engraving machines are mostly manual or semi-automatic, requiring manual placement of the product on a fixture before the machine starts engraving. Once finished, the product is removed and a new one is placed, and this cycle repeats. This not only requires significant manual intervention, impacting production speed, but also means that the operator's skill level and work condition greatly affect the engraving quality, easily leading to errors and inconsistencies, making it difficult to guarantee processing accuracy and efficiency. This is especially problematic for products with extremely high precision requirements, failing to meet their production needs. Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a fully automatic high-precision laser engraving device to overcome the defects of existing products where laser engraving requires manual operation, which makes it difficult to guarantee processing accuracy and efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a fully automatic high-precision laser engraving device, including: a robotic arm, a laser engraving machine, a laser engraving transfer mechanism, and a conveyor line. The laser engraving transfer mechanism includes a carrier plate for placing products and a rotary drive device connected to the carrier plate. The robotic arm is disposed on one side of the laser engraving transfer mechanism. The robotic arm is used to place the product to be laser engraved on the carrier plate at the loading station. The rotary drive device is used to drive the carrier plate to rotate, so as to transfer the product between the loading station and the laser engraving station. The laser engraving machine is used to perform laser engraving on the product at the laser engraving station. The robotic arm is also used to transfer the laser-engraved product on the carrier plate at the loading station to the conveyor line. The conveyor line receives the product transferred by the robotic arm and transports the product to the next station.

[0006] As a further improvement of this utility model, the laser engraving machine includes a worktable and a laser mounted on the worktable. The laser head of the laser is vertically downward and positioned directly opposite the laser engraving station. The conveyor line is horizontally arranged on the worktable, and the laser engraving transfer mechanism is mounted on the conveyor line.

[0007] As a further improvement of this utility model, a bracket is installed on the conveyor line, the rotary drive device is fixed on the bracket, the rotary drive device is a rotary cylinder, and the carrier plate is installed on the rotary cylinder.

[0008] As a further improvement of this utility model, the laser engraving machine also includes a vision inspection device, which is used to capture the position of the product, and the laser can perform laser engraving on a designated area of ​​the product according to the position information captured by the vision inspection device.

[0009] As a further improvement of this utility model, the visual inspection device includes a frame and a camera. The frame is fixed on the laser and located below the laser head. The camera is installed horizontally inside the frame. A reflector is also installed inside the frame. The camera detects the position of the product through the reflector.

[0010] As a further improvement of this utility model, the visual inspection device also includes two light sources, which are respectively installed on both sides of the frame via connecting plates, and the laser engraving station is located directly below the middle of the two light sources.

[0011] As a further improvement of this utility model, a lifting drive device is installed on the worktable in the vertical direction, the laser is mounted on the lifting drive device, and the lifting drive device is used to adjust the height of the laser.

[0012] As a further improvement of this utility model, the conveyor line adopts a belt conveyor.

[0013] As a further improvement of this utility model, the carrier plate is provided with a plurality of positioning grooves for positioning products.

[0014] As a further improvement of this utility model, the robotic arm is a gantry robotic arm or a six-axis robotic arm, which is equipped with a gripping mechanism for grasping products. The gripping mechanism is a suction cup, a pneumatic gripper, or an electric gripper.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model provides a fully automatic high-precision laser engraving device. A robotic arm handles loading and unloading, and a laser engraving transfer mechanism transfers the product between the loading station and the laser engraving station. After the laser engraving machine completes the product at the laser engraving station, the robotic arm transfers the engraved product to a conveyor line, which then transports it out. This achieves fully automatic laser engraving without manual intervention, saving labor costs, accelerating production, and improving overall production efficiency. It also reduces errors caused by manual operation, ensuring the consistency and precision of the laser engraving. Furthermore, by setting up a laser engraving transfer mechanism, a rotary drive device drives a carrier plate to carry the product between the loading station and the laser engraving station, effectively avoiding interference between the robotic arm and the laser engraving machine during material handling and reducing the difficulty of material handling for the robotic arm.

[0017] 2. This utility model uses a laser in conjunction with a vision inspection device to capture the position of the product at the laser engraving station. Through existing image recognition and processing technology, it achieves high-precision positioning of the product. Even if the product position deviates or other abnormalities occur, the system can adjust and correct the laser engraving position in real time, effectively avoiding laser engraving deviations caused by inaccurate product placement by the robotic arm, ensuring the accuracy and effect of laser engraving, improving product quality and consistency, and eliminating the need for manual intervention in the positioning process, thus achieving a high degree of automation in the production process. Attached Figure Description

[0018] Figure 1 This is a perspective view of the fully automatic high-precision laser engraving device of this utility model;

[0019] Figure 2 This is a perspective view of the laser engraving transfer mechanism and conveyor line in this utility model;

[0020] Figure 3 This is a perspective view of the laser engraving transfer mechanism in this utility model;

[0021] Figure 4 This is a perspective view of the laser engraving machine of this utility model;

[0022] Figure 5This is a left view of the laser and visual inspection device in this utility model.

[0023] Referring to the accompanying drawings, the following explanations are provided:

[0024] 1. Product; 2. Carrier plate; 201. Positioning groove; 3. Worktable; 4. Laser; 401. Laser head; 5. Bracket; 6. Rotary cylinder; 7. Frame; 8. Camera; 9. Reflector; 10. Light source; 11. Connecting plate; 12. Lifting drive device; 13. Belt conveyor. Detailed Implementation

[0025] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] See Figures 1 to 5 This utility model provides a fully automatic high-precision laser engraving device, including: a robotic arm (not shown in the figure), a laser engraving machine, a laser engraving transfer mechanism, and a conveyor line. Furthermore, this fully automatic high-precision laser engraving device is equipped with a loading station and a laser engraving station. The laser engraving transfer mechanism includes a carrier plate 2 for placing a product 1 and a rotary drive device connected to the carrier plate 2. The robotic arm is located on one side of the laser engraving transfer mechanism. The robotic arm is used to place the product 1 to be laser engraved on the carrier plate 2 at the loading station. The rotary drive device is used to drive the carrier plate 2 to rotate, thereby transferring the product 1 between the loading station and the laser engraving station. The laser engraving machine is used to perform laser engraving on the product 1 at the laser engraving station. The robotic arm is also used to transfer the laser-engraved product 1 from the carrier plate 2 at the loading station to the conveyor line. The conveyor line receives the product 1 transferred by the robotic arm and transports the product 1 to the next station.

[0027] As one of the application scenarios of this utility model, the fully automatic high-precision laser engraving device of this utility model can be used in conjunction with injection molds to complete a fully automatic production line for injection molding and marking.

[0028] Specifically, after product 1 cools and solidifies in the injection mold, the mold opens and ejects product 1. A robotic arm picks up product 1 and transfers it to the loading station. At this time, the carrier plate 2 is also at the loading station. The robotic arm places product 1 on the carrier plate 2, and the rotary drive device drives the carrier plate 2 to rotate, transferring product 1 from the loading station to the laser engraving station. The laser engraving machine performs laser engraving on product 1 at the laser engraving station. After the laser engraving is completed, the rotary drive device drives the carrier plate 2 to rotate again, transferring product 1 from the laser engraving station to the loading station. The robotic arm then transfers the laser-engraved product 1 at the loading station to the conveyor line, which then transports product 1 to the next station. This achieves fully automated laser engraving without the need for manual intervention, saving labor costs, accelerating the production pace, improving overall production efficiency, and reducing errors caused by manual operation. This ensures the consistency of laser engraving on product 1 and guarantees processing accuracy. In addition, by setting up a laser engraving transfer mechanism, the present invention uses a rotary drive device to drive the carrier plate 2 to carry the product 1 between the loading station and the laser engraving station, which can effectively avoid interference between the robot arm and the laser engraving machine when the robot arm picks up and puts up the material, and reduce the difficulty of the robot arm picking up and putting up the material.

[0029] like Figure 1 As shown, the laser engraving machine includes a worktable 3 and a laser 4 mounted on the worktable 3. The laser head 401 of the laser 4 is set vertically downwards and directly facing the laser engraving station. The conveyor line is set horizontally on the worktable 3. The laser engraving transfer mechanism is mounted on the conveyor line. This structural design can make more reasonable use of space, the structure is more compact, and the overall volume is reduced.

[0030] In addition, a lifting drive device 12 is installed vertically on the worktable 3, and the laser 4 is mounted on the lifting drive device 12. The lifting drive device 12 is used to drive the laser 4 to move up and down to adjust the height of the laser 4 and facilitate focusing of the laser 4. The lifting drive device 12 can be a manual lead screw slide or a servo motor linear module. This embodiment specifically uses the former, which can save costs.

[0031] See Figure 2 and Figure 3 A U-shaped bracket 5 is installed on the conveyor line, and a rotary drive device is fixed on the bracket 5. In this embodiment, the rotary drive device is a rotary cylinder 6, and the carrier plate 2 is installed on the rotary cylinder 6. The rotary cylinder 6 is used to drive the carrier plate 2 to rotate 180° to move the product 1 between the loading station and the laser engraving station.

[0032] In this utility model, the conveyor line specifically adopts a belt conveyor 13, which is a conventional technology.

[0033] It should be noted that the robotic arm in this utility model also adopts existing conventional technology, such as a gantry robotic arm or a six-axis robotic arm, which is equipped with a gripping mechanism for gripping product 1. The gripping mechanism adopts a suction cup, pneumatic gripper or electric gripper.

[0034] It is worth mentioning that the laser engraving machine also includes a vision inspection device, which is used to capture the position of product 1. The laser 4 can then perform laser engraving on a designated area of ​​product 1 based on the position information captured by the vision inspection device. This utility model uses a laser 4 in conjunction with a vision inspection device to capture the position of product 1 at the laser engraving station. Through existing image recognition and processing technology, high-precision positioning of product 1 is achieved. Even if the position of product 1 deviates or other abnormalities occur, the system can adjust and correct the laser engraving position of laser 4 in real time, effectively avoiding laser engraving deviations caused by inaccurate placement of product 1 by the robotic arm, ensuring the accuracy and effect of laser engraving, improving product quality and consistency, and eliminating the need for manual intervention in the positioning process, thus achieving a high degree of automation in the production process.

[0035] See Figure 4 and Figure 5 The visual inspection device includes a frame 7 and a camera 8. The frame 7 is fixed to the laser 4 and located below the laser head 401. Windows are provided at the top and bottom of the frame 7 to allow the laser beam emitted from the laser head 401 to pass through. The camera 8 is installed horizontally within the frame 7, and a reflector 9 is also installed within the frame 7. The reflector 9 can be, but is not limited to, arranged at a 45° angle. The camera 8 detects the position of the product 1 through the reflector 9. Since the laser head 401 is vertically downward and directly facing the product 1 at the laser engraving station, if the camera 8 is also configured vertically downward, due to space constraints, the camera 8 cannot be directly facing the product 1, leading to inspection errors. This invention effectively solves the space constraints by distributing the camera 8 perpendicular to the laser head 401 and using the reflector 9 to detect the product 1, ensuring the accuracy of the inspection.

[0036] In addition, the visual inspection device includes two light sources 10, which are respectively mounted on both sides of the frame 7 via connecting plates 11. The laser engraving station is located directly below the center of the two light sources 10. This invention uses the two light sources 10 to provide illumination to the product 1, enabling the camera 8 to clearly capture the product 1.

[0037] In this utility model, the carrier plate 2 is provided with a plurality of positioning grooves 201 for positioning products. Since the laser engraving machine is equipped with a vision inspection device, the precision of the positioning grooves 201 does not need to be particularly accurate. They can be appropriately larger than the size of the product 1. This makes it easier for the robot to place the product 1 in the positioning grooves 201, reducing the precision requirements of the robot.

[0038] Therefore, this fully automatic high-precision laser engraving device uses a robotic arm for loading and unloading, and a laser engraving transfer mechanism to transfer product 1 between the loading station and the laser engraving station. After the laser engraving machine completes the laser engraving of product 1 at the laser engraving station, the robotic arm transfers the laser-engraved product 1 to the conveyor line, and finally the product is conveyed out. This achieves fully automatic laser engraving operation without the need for manual assistance, saving labor costs, speeding up the production pace, and improving overall production efficiency. It also reduces errors caused by manual operation and ensures the consistency and accuracy of laser engraving on product 1. Furthermore, by setting up a laser engraving transfer mechanism, the rotary drive device drives the carrier plate 2 to carry product 1 between the loading station and the laser engraving station, which can effectively avoid interference between the robotic arm and the laser engraving machine when picking up and placing materials, and reduce the difficulty of picking up and placing materials by the robotic arm. Furthermore, this invention employs a laser 4 in conjunction with a vision inspection device. The vision inspection device captures the position of product 1 at the laser engraving station. Through existing image recognition and processing technologies, high-precision positioning of product 1 is achieved. Even if product 1 deviates from its position or other abnormalities occur, the system can adjust and correct the laser engraving position of the laser 4 in real time. This effectively avoids laser engraving deviations caused by inaccurate placement of product 1 by the robotic arm, ensuring the accuracy and effect of laser engraving, improving product quality and consistency, and eliminating the need for manual intervention in the positioning process, thus achieving a high degree of automation in the production process.

[0039] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A fully automatic high-precision laser engraving device, characterized in that, include: The system includes a robotic arm, a laser engraving machine, a laser engraving transfer mechanism, and a conveyor line. The laser engraving transfer mechanism includes a carrier plate (2) for placing a product (1) and a rotary drive device connected to the carrier plate (2). The robotic arm is located on one side of the laser engraving transfer mechanism. The robotic arm is used to place the product (1) to be laser engraved on the carrier plate (2) at the loading station. The rotary drive device is used to drive the carrier plate (2) to rotate so as to transfer the product (1) between the loading station and the laser engraving station. The laser engraving machine is used to laser engrave the product (1) at the laser engraving station. The robotic arm is also used to transfer the product (1) that has been laser engraved on the carrier plate (2) at the loading station to the conveyor line. The conveyor line receives the product (1) transferred by the robotic arm and transports the product (1) to the next station.

2. The fully automatic high-precision laser engraving device according to claim 1, characterized in that: The laser engraving machine includes a worktable (3) and a laser (4) installed on the worktable (3). The laser head (401) of the laser (4) is vertically downward and facing the laser engraving station. The conveyor line is horizontally arranged on the worktable (3), and the laser engraving transfer mechanism is mounted on the conveyor line.

3. The fully automatic high-precision laser engraving device according to claim 2, characterized in that: A bracket (5) is installed on the conveyor line, and the rotary drive device is fixed on the bracket (5). The rotary drive device is a rotary cylinder (6), and the carrier plate (2) is installed on the rotary cylinder (6).

4. The fully automatic high-precision laser engraving device according to claim 2, characterized in that: The laser engraving machine also includes a vision inspection device, which is used to capture the position of the product (1), and the laser (4) is able to perform laser engraving on a designated area of ​​the product (1) according to the position information captured by the vision inspection device.

5. The fully automatic high-precision laser engraving device according to claim 4, characterized in that: The visual inspection device includes a frame (7) and a camera (8). The frame (7) is fixed on the laser (4) and located below the laser head (401). The camera (8) is installed in the frame (7) in a horizontal direction. A reflector (9) is also installed in the frame (7). The camera (8) detects the position of the product (1) through the reflector (9).

6. The fully automatic high-precision laser engraving device according to claim 5, characterized in that: The visual inspection device also includes two light sources (10), which are respectively installed on both sides of the frame (7) via connecting plates (11), and the laser engraving station is located directly below the middle of the two light sources (10).

7. The fully automatic high-precision laser engraving device according to claim 2, characterized in that: A lifting drive device (12) is installed on the workbench (3) in the vertical direction. The laser (4) is installed on the lifting drive device (12). The lifting drive device (12) is used to adjust the height of the laser (4).

8. The fully automatic high-precision laser engraving device according to claim 1, characterized in that: The conveyor line uses a belt conveyor (13).

9. The fully automatic high-precision laser engraving device according to claim 1, characterized in that: The carrier plate (2) is provided with a plurality of positioning slots (201) for positioning products.

10. The fully automatic high-precision laser engraving device according to claim 1, characterized in that: The robotic arm is a gantry robotic arm or a six-axis robotic arm, which is equipped with a gripping mechanism for gripping the product (1). The gripping mechanism is a suction cup, a pneumatic gripper or an electric gripper.

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