Tire laser engraving process and apparatus based on camera recognition of characters

Abstract

The application discloses a tire laser engraving process based on camera character recognition and equipment thereof, and the equipment comprises a machine arm, further comprises an equipment body, a Mecanum wheel conveying belt for conveying tires is arranged on the equipment body, a centering mechanism for a tire pair is arranged on the Mecanum wheel conveying belt, the machine arm is arranged on the equipment body, a mounting seat is arranged on a movable end of the machine arm, and an identification camera, a laser and a code reader are arranged on the mounting seat. The application can accurately perform laser engraving on the position of the tire needing to be engraved.

Description

TECHNICAL FIELD

[0001] The present application relates to the tire lettering technical field, specifically to the tire laser engraving equipment based on camera recognition character and its processing technology. BACKGROUND

[0002] Tire is a round ring elastic rubber product for rolling on the ground and is installed on various vehicles or machines. It is usually installed on a metal rim, can support the vehicle body, buffer external impact, realize contact with the road surface and ensure the driving performance of the vehicle; the tire needs to be processed by laser lettering during the processing of the tire; and the existing laser lettering equipment cannot accurately perform lettering on the specific lettering position when performing lettering on the tire. Therefore, we improve it and propose the tire laser engraving equipment based on camera recognition character. SUMMARY

[0003] In order to solve the above technical problems, the present application provides the following technical scheme:

[0004] The tire laser engraving equipment based on camera recognition character of the present application comprises a machine arm, further comprises an equipment body, a Mecanum wheel conveying belt for conveying the tire is arranged on the equipment body; a centering mechanism for the tire pair is arranged on the Mecanum wheel conveying belt, the machine arm is arranged on the equipment body, an installation seat is arranged on the movable end of the machine arm, an identification camera, a laser and a code reader are arranged on the installation seat.

[0005] The identification camera scans the tire; the code reader is used for identifying the bar code on the tire; and the laser is used for laser lettering on the surface of the tire.

[0006] As a preferred technical scheme of the present application, a position sensor for detecting the position of the tire is arranged on the equipment body.

[0007] As a preferred technical scheme of the present application, the machine arm is a six-axis machine arm.

[0008] As a preferred technical scheme of the present application, the identification camera is a 3D camera.

[0009] As a preferred technical scheme of the present application, the six-axis machine arm drives the identification camera, the laser and the code reader to rotate around the tire.

[0010] As a preferred technical scheme of the present application, the processing technology of the tire laser engraving equipment based on camera recognition characters is as follows: the tire is placed on the Mecanum wheel conveying belt, when the position sensor detects that the tire reaches below the machine arm, the Mecanum wheel conveying belt stops working, then the centering mechanism works to center the tire, and then the machine arm drives the laser equipped with the recognition camera and the code reader to move to the designated height above the center of the tire for laser marking; the machine arm drives the laser equipped with the recognition camera and the code reader to rotate around the center of the tire for scanning, to recognize the original DOT code on the tire or to find the designated position, the code reader scans the one-dimensional code of the tire label, and at the same time, the real-time scanning of the recognition camera establishes the 3D model of the tire, and through the AI intelligent algorithm and the coordinate system mapping, the position on the surface of the tire is mapped to the actual robot coordinate system; the tire molding barcode information is reported to the MES information data management system of the factory area by the equipment general control system, and the corresponding tire information is returned to the equipment general control system by the MES system; the required character engraving position is interacted by the industrial computer TCP / IP communication and the PLC, the position coordinates are transmitted to the robot by the PLC through the profinet communication, the laser is driven to the marking position by the robot, and the characters are engraved according to the interaction between the industrial computer and the MES, the machine arm returns to the initial position, and waits for the next workpiece to enter.

[0011] The present application has the following beneficial effects:

[0012] The tire laser engraving equipment based on camera recognition characters places the tire on the Mecanum wheel conveying belt, when the position sensor detects that the tire reaches below the machine arm, the Mecanum wheel conveying belt stops working, then the centering mechanism works to center the tire, then the machine arm drives the recognition camera and the code reader to move to the designated height above the center of the tire; the machine arm drives the recognition camera and the code reader to rotate around the center of the tire for scanning, to find the relative coordinate position of character engraving, the code reader scans the molding code of the tire, and analyzes the molding code; the tire molding barcode information is reported to the MES information data management system of the factory area by the equipment general control system, and the corresponding tire information is returned to the equipment general control system by the MES system; the machine arm advances to the corresponding position, and the laser performs character engraving work according to the feedback information of the MES; the machine arm returns to the initial position, and waits for the next workpiece to enter; the position needing character engraving can be accurately engraved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application, and are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0014] Fig. 1 is a structural schematic view of the tire laser engraving equipment based on camera recognition characters of the present application;

[0015] Fig. 2 This is a top view of the tire laser engraving device based on camera character recognition according to the present invention;

[0016] Fig. 3 This is a flowchart of the operation of the tire laser engraving device based on camera character recognition according to the present invention.

[0017] In the diagram: 1. Robotic arm; 2. Equipment body; 3. Mecanum wheel conveyor belt; 4. Centering mechanism; 10. Mounting base; 11. Recognition camera; 12. Laser; 13. Code reader. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example: Figs. 1-3 As shown, the present invention relates to a tire laser engraving device based on camera-recognized characters, comprising a robotic arm 1 and a device body 2. The device body 2 is equipped with a Mecanum wheel conveyor belt 3 for transporting tires; and the Mecanum wheel conveyor belt 3 is equipped with a tire alignment mechanism 4. The robotic arm 1 is mounted on the device body 2, and the movable end of the robotic arm 1 is equipped with a mounting base 10. The mounting base 10 is equipped with a recognition camera 11, a laser 12, and a code reader 13. When a tire is placed on the Mecanum wheel conveyor belt, and a position sensor detects that the tire has reached below the robotic arm 1, the Mecanum wheel conveyor belt 4... The Knum conveyor belt stops working, then the centering mechanism centers the tire. The robotic arm then moves the recognition camera and barcode reader to a designated height above the tire's center. The robotic arm and the recognition camera and barcode reader rotate around the tire's center to scan and locate the relative coordinates of the engraving. The barcode reader scans and parses the tire's barcode. The equipment's central control system reports the tire's barcode information to the factory's MES (Manufacturing Execution System) data management system. The MES system replies with the corresponding tire information to the equipment's central control system. The robotic arm advances to the corresponding position, and the laser performs the engraving based on the MES feedback. The robotic arm returns to its initial position, awaiting the next workpiece. It can accurately engrave the required locations.

[0020] The identification camera 11 scans the tire; the barcode reader 13 identifies the barcode on the tire; and the laser 12 engraves characters onto the tire surface. This allows for accurate engraving at the desired locations. The mounting base 10 is also equipped with a rangefinder, which detects the distance between the laser 12 and the tire.

[0021] The device body 2 is equipped with a position sensor for detecting the tire position.

[0022] The machine arm 1 is a six-axis machine arm.

[0023] The identification camera 11 is a 3D camera; it is convenient to scan and model the tire.

[0024] The six-axis machine arm 1 drives the identification camera 11, the laser 12 and the code reader 13 to rotate around the tire. It is convenient to scan and model the tire.

[0025] The processing technology of the tire laser engraving equipment based on camera identification character is as follows: the tire is placed on the Mecanum wheel conveyor belt, when the position sensor detects that the tire reaches below the machine arm, the Mecanum wheel conveyor belt stops working, then the centering mechanism works to center the tire, and then the machine arm drives the laser equipped with the identification camera and the code reader to move to the center of the tire above the specified height suitable for laser marking; the machine arm drives the laser equipped with the identification camera and the code reader to rotate around the center of the tire to scan, identify the original DOT code on the tire or find the specified position, the code reader scans the one-dimensional code of the tire label, at the same time, through the real-time scanning of the identification camera, the 3D model of the tire is established, and the position of the tire surface is mapped to the actual robot coordinate system through AI intelligent algorithm and coordinate system mapping; the tire molding bar code information is reported to the MES information data management system of the factory area by the equipment general control system, and the corresponding tire information is returned to the equipment general control system by the MES system; the required character carving position is communicated and interacted by the industrial computer TCP / IP and the PLC, the position coordinates are transmitted to the robot by the PLC through profinet communication, the robot drives the laser to reach the marking position to carve according to the characters after the interaction of the industrial computer and the MES, the machine arm returns to the initial position to wait for the next workpiece to enter.

[0026] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A tire laser engraving device based on camera-recognized characters, comprising a robotic arm (1), characterized in that: It also includes a device body (2), on which a Mecanum wheel conveyor belt (3) for conveying tires is provided; and a centering mechanism (4) for centering tires is provided on the Mecanum wheel conveyor belt (3); a robotic arm (1) is mounted on the device body (2), and a mounting base (10) is provided at the movable end of the robotic arm (1); a recognition camera (11), a laser (12), and a code reader (13) are provided on the mounting base (10); the recognition camera (11) scans the tires; the code reader (12) scans the tires; and the laser (13) scans the tires. 3) Used for identifying barcodes on tires; the laser (12) is used to laser engrave on the tire surface; the equipment body (2) is equipped with a position sensor to detect the tire position; the robotic arm (1) is a six-axis robotic arm; the recognition camera (11) is a 3D camera; the six-axis robotic arm (1) drives the recognition camera (11), laser (12) and barcode reader (13) to rotate around the tire; the processing technology is to place the tire on the Mecanum wheel conveyor belt, and when the position sensor detects that the tire has reached the bottom of the robotic arm The Mecanum conveyor belt stops working, and then the centering mechanism centers the tire. Next, the robotic arm moves the laser, equipped with a recognition camera and barcode reader, to a designated height above the tire's center for laser marking. The robotic arm, along with the laser, rotates around the tire's center, scanning to identify the existing DOT code or locate the designated position. The barcode reader scans the 1D barcode on the tire label, and simultaneously, through real-time scanning by the recognition camera, a 3D model of the tire is created. Using AI intelligent algorithms and coordinate system mapping, the tire's surface position is mapped to the actual robot coordinate system. The equipment control system reports the tire's formed barcode information to the factory's MES information data management system, which then replies with the corresponding tire information. The required marking position is determined by TCP / IP communication between the industrial control computer and the PLC. The PLC transmits the position coordinates to the robot via Profinet communication. The robot drives the laser to the marking position and engraves the characters based on the interaction between the industrial control computer and the MES. The robotic arm then returns to its initial position, awaiting the next workpiece.

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