A double-station laser cutting device and product positioning method

Abstract

The present application relates to a kind of double-station laser cutting equipment and product positioning method in the technical field of laser cutting, the present application can simultaneously process two pieces of products to be cut by the setting of double-station double laser cutting module, and can complete the cutting processing of both sides of composite board once with the cooperation of turnover mechanism, without manual turning and repositioning, greatly improve the processing efficiency, reduce the operation difficulty.The deviation correction module with CCD corner mark and position sensitive detector is set, and the CCD camera and infrared sensor on the mechanical arm can quickly obtain the position deviation information of the product, and simultaneously realize double deviation correction positioning, accurately complete the adjustment of the product X axis direction, Y axis direction and deflection angle, ensure the product positioning accuracy, avoid cutting misplacement problem, effectively improve the product cutting quality, and the positioning deviation process completed automatically further improves the overall processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a dual-station laser cutting equipment and a product positioning method. Background Technology

[0002] Laser cutting technology, as a high-precision and high-efficiency material processing method, has been widely used in the cutting and engraving of various materials, including metals and non-metals. Its core principle lies in focusing a high-energy laser beam generated by a laser into a spot with extremely high power density through a precise optical path system, which then acts on the surface of the workpiece. When the laser energy absorbed in a localized area rapidly exceeds the melting or boiling point of the material, the material is melted, vaporized, or ablated, thereby achieving material separation or etching to form the desired cut or pattern.

[0003] Laser cutting equipment for membrane materials is widely used in industries such as electronics, leather, advertising decoration, and arts and crafts. Different shapes can be cut from different drawn graphics using a laser cutting system. Currently, mainstream industrial laser cutting equipment generally adopts a single-station, single-sided cutting mode. This mode is highly effective for processing single-layer homogeneous sheets (such as steel plates and acrylic sheets). However, when dealing with composite sheets composed of multiple layers of heterogeneous materials, the limitations of existing technology become apparent. Single-sided cutting can only operate on one surface of the sheet: this means that... 1. Flipping operation required: In order to complete the cutting of the other side or internal structure, the workpiece must be removed from the worktable, flipped manually or with the help of a complex mechanism, and then repositioned for a second cut.

[0004] 2. Increased Operational Complexity: The added flipping step significantly reduces processing efficiency and increases operational difficulty. Alignment and Calibration Difficulty: After flipping, accurately positioning the workpiece to ensure precise alignment and centering of the second cutting path with the first cutting path in three-dimensional space (especially in the thickness direction and planar position) is extremely challenging. Even minor positioning errors can lead to misalignment of the cut edges on both sides and inaccurate cutting of the internal structure, severely affecting product precision and quality. Therefore, this invention provides a dual-station laser cutting device and product positioning method to solve the problems mentioned in the background section. Summary of the Invention

[0005] This invention provides a dual-station laser cutting device and a product positioning method to solve the problems mentioned in the background art.

[0006] The objective of this invention is achieved through the following means: A dual-station laser cutting device includes a laser mechanism, a conveying mechanism, and a flipping mechanism. The conveying mechanism is disposed between the laser mechanism and the flipping mechanism, and two robotic arms are arranged side by side between the laser mechanism and the conveying mechanism. The conveying mechanism includes two main conveyor belts and two correction modules, with the two correction modules corresponding to the two main conveyor belts respectively. The correction module includes a support platform and an X-axis correction component and a Y-axis correction component disposed on the support platform. The X-axis correction component is used to drive the product to move along the transmission direction of the main conveyor belt, and the Y-axis correction component is used to drive the product to adjust its position along a direction perpendicular to the transmission direction of the main conveyor belt. The robotic arm is equipped with a CCD camera, the outer edge of the support platform is equipped with a CCD corner mark, the four corners of the support platform are equipped with position-sensitive detectors, and the robotic arm is equipped with an infrared sensor for cooperating with the position-sensitive detectors.

[0007] As a preferred embodiment of a dual-station laser cutting equipment, a lifting assembly is provided in the middle of the support platform. The lifting assembly includes a driver and a correction platform. The correction platform is rotatably mounted on the driver, which drives the correction platform to move up and down. The X-axis correction assembly consists of at least two sets of X-axis correction rollers, which are symmetrically arranged on both sides of the correction platform. The Y-axis correction assembly consists of at least two sets of Y-axis correction rollers, which are symmetrically arranged on both sides of the correction platform.

[0008] As a preferred embodiment of a dual-station laser cutting equipment, the laser mechanism includes a gantry and two support modules. The gantry is located in the middle of the two support modules, and two laser cutting modules are mounted on the gantry, with each laser cutting module corresponding to one of the two support modules.

[0009] As a preferred embodiment of a dual-station laser cutting equipment, the laser cutting module includes a movable base that can move laterally along the gantry, a laser cutting head disposed on the movable base, and an adjustment component connected to the movable base. The adjustment component can drive the laser cutting head to adjust its position in the vertical direction. The carrying module includes a linear mover and a vacuum adsorption platform. The linear mover can drive the vacuum adsorption platform to move in a direction perpendicular to the lateral direction of the gantry.

[0010] As a preferred embodiment of a dual-station laser cutting equipment, the end of the flipping mechanism away from the conveying mechanism is provided with a feeding module, which includes a feeding conveyor belt and a barcode scanner disposed above the feeding conveyor belt.

[0011] As a preferred embodiment of a dual-station laser cutting equipment, the flipping mechanism includes two flipping modules, which are respectively located at the feed ends of the two main conveyor belts.

[0012] As a preferred embodiment of a dual-station laser cutting equipment, the flipping module includes a support base, a flipping motor, a drive motor, and two opposing roller groups. The support base is fixedly mounted at the feed end of the main conveyor belt. The flipping motor is mounted on the support base and connected to the two roller groups via a fixed bracket. The drive motor is mounted on the fixed bracket and connected to the roller groups. A gap is left between the two roller groups for the product to pass through. The flipping motor can drive the fixed bracket to rotate as a whole.

[0013] As a preferred embodiment of a dual-station laser cutting device, the robotic arm is equipped with multiple vacuum suction cups via a support frame, and the CCD camera and infrared sensor are detachably mounted on the support frame.

[0014] A product positioning method applicable to a dual-station laser cutting device includes the following steps: Step 1: The product is transported to the correction module, where the robotic arm moves the CCD camera and infrared sensor to the top of the support platform; Step 2: The robotic arm uses its infrared sensor and position-sensitive detector to coordinate positioning and determine its spatial position. The deviation of the robotic arm's coordinate system is calculated by combining the position of the corner marker, thus completing the calibration and positioning of the robotic arm. Step 3: After completing the calibration and positioning, the robotic arm uses a CCD camera and the CCD markers on the outer edge of the support platform to complete the initial position acquisition and obtain the current position deviation information of the product. Step 4: The collected position deviation information is transmitted to the X-axis correction component and the Y-axis correction component. The X-axis correction component moves the product along the main conveyor belt direction by rotating the rollers, adjusting the product's position in the conveying direction. The Y-axis correction component moves the product along the vertical conveying direction by rotating the rollers, completing the lateral position adjustment. Then, the robotic arm sends the product to the vacuum adsorption platform through the vacuum suction cup, completing the overall correction and positioning.

[0015] As a preferred solution for product positioning, the current position deviation information of the product in step 3 includes the X-direction offset, Y-direction offset, and deflection angle of the product on the bearing platform relative to the standard position. The offset and deflection angle are calculated by combining the product edge features acquired by the CCD camera with the pre-calibrated standard position coordinates. When the product deflects, the correction platform lifts the center of the product locally, and the two sets of X-axis correction rollers or the two sets of Y-axis correction rollers rotate synchronously in opposite directions to adjust the product deflection angle. After the deflection angle is corrected to within the allowable error range, the position adjustment in the X-axis and Y-axis directions is completed.

[0016] This invention, through the setup of a dual-station, dual-laser cutting module, can process two products simultaneously. Combined with a flipping mechanism, it can complete the cutting of both sides of composite panels in one go, eliminating the need for manual flipping and repositioning, significantly improving processing efficiency and reducing operational difficulty. Simultaneously, a correction module equipped with CCD corner markers and position-sensitive detectors, along with a CCD camera and infrared sensor on the robotic arm, can quickly acquire product positional deviation information and simultaneously achieve dual correction positioning. This accurately adjusts the product's X-axis, Y-axis, and deflection angle, ensuring product positioning accuracy, avoiding cutting misalignment, and effectively improving product cutting quality. Furthermore, the automated positioning and correction process further enhances overall processing efficiency. Attached Figure Description

[0017] Figure 1 This is a first structural schematic diagram of a dual-station laser cutting device according to the present invention; Figure 2 This is a schematic diagram of the second structure of a dual-station laser cutting device according to the present invention; Figure 3 This is a top view of a dual-station laser cutting device according to the present invention; Figure 4 This is a top view of the correction module in this invention; Figure 5 This is a schematic diagram of the first correction module in this invention; Figure 6 This is a second correction diagram of the correction module in this invention; Figure 7 This is a first schematic diagram of the correction module in this invention; Figure 8 This is a second schematic diagram of the correction module in this invention; Figure 9 This is a schematic diagram of the laser mechanism in this invention; Figure 10 This is a schematic diagram of the feeding module in this invention.

[0018] The labels in the attached diagram are as follows: 1-Laser mechanism, 101-Gantry frame, 102-Moving seat, 103-Laser cutting head, 104-Adjustment component, 105-Linear mover, 106-Vacuum adsorption platform, 2-Main conveyor belt, 3-Correction module, 301-Bearing platform, 302-X-axis correction roller, 303-Y-axis correction roller, 304-Correction platform, 4-Robotic arm, 5-Feed conveyor belt, 6-Bar scanner, 7-Tilting module, 8-Vacuum suction cup, 10-Product. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 the present invention.

[0023] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0024] In one embodiment of the present invention, such as Figure 1-10 As shown, a dual-station laser cutting device includes a laser mechanism 1, a conveying mechanism, and a flipping mechanism. The conveying mechanism is located between the laser mechanism 1 and the flipping mechanism. Two robotic arms 4 are arranged side by side between the laser mechanism 1 and the conveying mechanism. The conveying mechanism includes two main conveyor belts 2 and two correction modules 3, with the two correction modules 3 corresponding to the two main conveyor belts 2 respectively. The correction module 3 includes a support platform 301 and an X-axis correction component and a Y-axis correction component disposed on the support platform 301. The X-axis correction component is used to drive the product 10 to move along the transmission direction of the main conveyor belt 2, and the Y-axis correction component is used to drive the product 10 to adjust its position along the direction perpendicular to the transmission direction of the main conveyor belt 2. The robotic arm 4 is equipped with a CCD camera, the outer edge of the support platform 301 is equipped with a CCD corner mark, the four corners of the support platform 301 are equipped with position-sensitive detectors, and the robotic arm 4 is equipped with an infrared sensor for cooperating with the position-sensitive detectors.

[0025] This invention, through the setup of a dual-station, dual-laser cutting module, can simultaneously process two products 10 to be cut. Combined with a flipping mechanism, it can complete the cutting of both sides of the composite board in one go, eliminating the need for manual flipping and repositioning, significantly improving processing efficiency and reducing operational difficulty. Simultaneously, a correction module 3 equipped with CCD corner markers and a position-sensitive detector, working in conjunction with a CCD camera and infrared sensor on the robotic arm 4, can quickly acquire positional deviation information of the product 10 and simultaneously achieve dual correction positioning. This accurately adjusts the X-axis, Y-axis, and deflection angle of the product 10, ensuring positioning accuracy, avoiding cutting misalignment, and effectively improving the cutting quality of the product 10. Furthermore, the automated positioning and correction process further enhances overall processing efficiency.

[0026] A lifting assembly is provided in the middle of the support platform 301. The lifting assembly includes a driver and a correction platform 304. The correction platform 304 is rotatably mounted on the driver, which drives the correction platform 304 to move up and down. The X-axis correction assembly consists of at least two sets of X-axis correction rollers 302, which are symmetrically arranged on both sides of the correction platform 304. The Y-axis correction assembly consists of at least two sets of Y-axis correction rollers 303, which are symmetrically arranged on both sides of the correction platform 304.

[0027] In practical applications, the correction platform 304 is usually lower than the height of the conveying mechanism. Only when the product 10 deflects at an angle will the driver drive the correction platform 304 to move upward, thereby lifting the center of the product 10 locally. At that time, the deflection angle of the product 10 can be adjusted by two sets of forward and reverse rotating X-axis correction rollers 302 or two sets of Y-axis correction rollers 303.

[0028] Specifically, after the correction platform 304 partially lifts the center of product 10, one set of X-axis correction rollers 302 rotates clockwise, while another set of X-axis correction rollers 302 symmetrically arranged on the other side of the correction platform 304 rotates counterclockwise. This causes product 10 to rotate along the correction platform 304, thus correcting the error in the deflection angle of product 10. Alternatively, a Y-axis correction assembly can be used to correct the deflection angle of product 10.

[0029] Furthermore, the X-axis correction assembly and / or the Y-axis correction assembly can be vertically mounted on the support platform 301 via a cylinder or other lifting structure. In this embodiment, the Y-axis correction assembly is configured as a vertically adjustable structure to reduce obstruction to the transport of product 10. When product 10 is transported along the X-axis, the Y-axis correction assembly can be lowered, allowing product 10 to pass smoothly over it. When Y-axis position adjustment is required, the Y-axis correction assembly is raised again, contacting and driving product 10 to complete the position adjustment, thus avoiding interference with the regular transport process.

[0030] In this embodiment, the X-axis correction assembly consists of four sets of X-axis correction rollers 302, symmetrically distributed in pairs on both sides of the correction platform 304 along the Y-axis direction. Each set of X-axis correction rollers 302 has two rollers arranged parallel to each other along the X-axis direction. The Y-axis correction assembly is also set to four sets, symmetrically distributed in pairs on both sides of the correction platform 304 along the X-axis direction. Each set of Y-axis correction rollers 303 has two rollers arranged parallel to each other along the Y-axis direction. This arrangement can provide more uniform support force after lifting the product 10, while ensuring stable force during angle adjustment, avoiding uneven force on the product 10 and causing displacement, and further improving the accuracy of correction.

[0031] In this embodiment, the correction platform 304 is mounted on the bearing platform 301 through a bearing structure, and the upper surface of the correction platform 304 is covered with an anti-slip layer, which can increase the friction between the product 10 and the correction platform 304, prevent the product 10 from slipping when adjusting the deflection angle, and ensure the accuracy of the angle adjustment.

[0032] The laser mechanism 1 includes a gantry frame 101 and two support modules. The gantry frame 101 is located in the middle of the two support modules. Two laser cutting modules are mounted on the gantry frame 101, each corresponding to one of the two support modules. Each laser cutting module can move laterally along the gantry frame 101, independently completing the cutting operation at its designated station without interference. The support modules are used to fix the material to be processed. Their surfaces have multiple sets of vacuum adsorption holes, which can be connected to an external negative pressure device to firmly adhere the material to the support surface, preventing displacement during cutting and further ensuring cutting accuracy.

[0033] The laser cutting module includes a movable base 102 that can move laterally along the gantry 101, a laser cutting head 103 mounted on the movable base 102, and an adjustment component 104 connected to the movable base 102. The adjustment component 104 can drive the laser cutting head 103 to adjust its position in the vertical direction to adapt to different thicknesses of the sheet metal to be cut. It can also adjust the height of the laser head during the cutting process to meet the cutting requirements of different process paths.

[0034] The carrying module includes a linear mover 105 and a vacuum adsorption platform 106. The linear mover 105 can drive the vacuum adsorption platform 106 to move in a direction perpendicular to the lateral direction of the gantry 101. During loading and cutting, the linear mover 105 moves the vacuum adsorption platform 106 to one end, and the robotic arm 4 delivers the product 10 onto the vacuum adsorption platform 106. At that time, the linear mover 105 delivers the vacuum adsorption platform 106 and the product 10 to the bottom of the gantry 101 to complete the laser cutting. After the laser cutting is completed, the linear mover 105 delivers the vacuum adsorption platform 106 and the product 10 to the other end, and another robotic arm 4 delivers them to the conveying mechanism for delivery, thus completing the entire process of laser cutting loading and unloading.

[0035] The flipping mechanism is provided with a feeding module at the end away from the conveying mechanism. The feeding module includes a feeding conveyor belt 5 and a barcode scanner 6 located above the feeding conveyor belt 5. The barcode scanner 6 can read the processing information barcode attached to the side of the board to be processed and automatically transmit the cutting parameters to the equipment control system. There is no need for manual input of parameters, which reduces the risk of human error. It is also suitable for mixed batch processing of boards of different specifications, which improves the flexible production capacity of the equipment.

[0036] The flipping mechanism includes two flipping modules 7, which are respectively set at the feeding ends of the two main conveyor belts 2. After the product 10 passes through the barcode scanner 6 for information entry, the flipping module 7 completes the feeding and positioning, and transports the board to the correction module 3 for correction and positioning, and cooperates with the robotic arm 4 to complete the feeding and processing.

[0037] The flipping module 7 includes a support base, a flipping motor, a drive motor, and two opposing roller groups. The support base is fixedly mounted at the feed end of the main conveyor belt 2. The flipping motor is mounted on the support base and connected to the two roller groups via a fixed bracket. The drive motor is mounted on the fixed bracket and connected to the roller groups. A gap is left between the two roller groups for the product 10 to pass through. The flipping motor can drive the fixed bracket to rotate as a whole. When the product 10 enters the flipping module 7 from the feed conveyor belt 5, the roller groups on both sides clamp the front end of the product 10. The drive motor drives the roller groups to rotate synchronously, stably feeding the product 10 into the equipment. The flipping motor can drive the fixed bracket and the clamped product 10 to rotate 180 degrees, which can quickly complete the flipping of the product 10. Then, the flipped product 10 is sent to the next processing station. The clamping force of the roller groups on the product 10 can be adaptively adjusted according to the thickness of the sheet material, which can ensure the driving effect of the product 10 without causing indentation damage to the surface of the sheet material due to excessive clamping force, thus ensuring the appearance quality of the processed product 10. The two independent flipping modules 7 can work with two different workstations to complete the feeding and flipping operations respectively, eliminating the need to wait for switching between workstations. This further leverages the production capacity advantage of the dual-workstation design and adapts to the needs of large-scale continuous cutting and processing.

[0038] The robotic arm 4 is equipped with multiple vacuum suction cups 8 via a support frame. The CCD camera and infrared sensor are detachably mounted on the support frame. The vacuum suction cups 8 can firmly grip the board material through negative pressure adsorption, and work with the robotic arm 4 to flexibly complete the board material loading and transfer process. The detachable installation method also facilitates the subsequent calibration and maintenance of the CCD camera and infrared sensor, ensuring the accuracy of positioning and detection.

[0039] A product positioning method applicable to a dual-station laser cutting device includes the following steps: Step 1: The product 10 is transported to the correction module 3, and the robotic arm 4 moves the CCD camera and infrared sensor above the support platform 301. Step 2: The robotic arm 4 uses its infrared sensor and position-sensitive detector to coordinate and determine its spatial position. The coordinate system deviation of the robotic arm 4 is calculated based on the corner marker position, completing the calibration and positioning of the robotic arm 4. Specifically, the infrared sensor is an LED infrared lamp that can quickly emit infrared signals matching the receiving frequency band of the position-sensitive detector. After receiving the infrared signal, the position-sensitive detector can quickly calibrate the corresponding position of the infrared sensor. Then, combined with the preset corner marker reference coordinates, the offset between the current coordinate system of the robotic arm 4 and the equipment reference coordinate system is calculated, automatically completing the coordinate system deviation correction and providing a precise positioning basis for subsequent product 10 position detection.

[0040] Step 3: After calibration and positioning, the robotic arm 4 uses a CCD camera and the CCD marker on the outer edge of the support platform 301 to perform preliminary position acquisition, obtaining the current position deviation information of product 10. Specifically, the CCD camera captures an image including the CCD marker and the edge of product 10. After image processing by the equipment control system, the marker contour coordinates and the edge contour coordinates of product 10 are extracted. Combined with the corrected coordinate system of the robotic arm 4, the deviation values ​​of product 10 relative to the reference position in the X-axis direction, Y-axis direction, and deflection angle can be calculated, completing the preliminary acquisition of product 10's position information. Compared with a single sensor detection method, the visual detection method combined with marker imaging can more intuitively obtain the overall posture information of product 10, without detection blind spots due to differences in product 10 size, and is adaptable to positioning of more specifications of cutting materials.

[0041] Step 4: The collected position deviation information is transmitted to the X-axis correction component and the Y-axis correction component. The X-axis correction component moves the product 10 along the main conveyor belt 2 in the conveying direction by rotating the rollers, adjusting the position of the product 10 in the conveying direction. The Y-axis correction component moves the product 10 along the vertical conveying direction by rotating the rollers, completing the lateral position adjustment. Then, the robotic arm 4 sends the product 10 to the vacuum adsorption platform 106 through the vacuum suction cup 8, completing the overall correction and positioning. Specifically, if the collected position deviation information includes the product 10 deflection angle error, the driver drives the correction platform 304 to move upward, lifting the center part of the product 10 away from the main conveyor belt 2. Then, the X-axis correction component or the Y-axis correction component is raised, and the product 10 is rotated by the reverse rotation of the two sets of rollers. After correcting the deflection angle deviation, the correction platform 304 falls back, and the product 10 falls back onto the main conveyor belt 2, completing the full-dimensional deviation correction. The entire positioning process can be completed within 2 seconds. Compared with traditional manual positioning and single-dimensional automatic correction, the positioning accuracy is improved by 50% and the overall positioning efficiency is improved by 2 times. It can fully match the high-speed processing rhythm of dual-station laser cutting equipment, and will not slow down the overall processing progress due to the positioning process. At the same time, it effectively avoids the errors caused by manual positioning, ensuring that the cutting accuracy of each piece of board meets the processing requirements.

[0042] In step 3, the current position deviation information of product 10 includes the X-direction offset, Y-direction offset, and deflection angle of product 10 relative to the standard position on the bearing platform 301. The offset and deflection angle are calculated by combining the edge features of product 10 acquired by the CCD camera with the pre-calibrated standard position coordinates. When product 10 has a deflection angle error, the correction platform 304 lifts the center part of product 10 locally, and the two sets of X-axis correction rollers 302 or the two sets of Y-axis correction rollers 303 rotate synchronously in opposite directions to adjust the deflection angle of product 10. After the deflection angle is corrected to within the allowable error range, the position adjustment in the X-axis and Y-axis directions is completed.

[0043] After the product 10 has completed the correction and positioning, it is transferred by the robotic arm 4 to the corresponding carrier module of the laser mechanism 1. The product 10 is fixed by the vacuum adsorption platform 106. Then, the linear mover 105 drives the vacuum adsorption platform 106 to move to the processing position. The laser cutting module adjusts the lateral position along the gantry 101, and the adjustment component 104 drives the laser cutting head 103 to adjust the vertical height, so as to complete the cutting processing of the product 10.

[0044] After the current workstation product 10 is processed, the carrying module drives the vacuum adsorption platform 106 to exit the processing position. The processed product 10 is sent by the robotic arm 4 to the main conveyor belt 2 for output. The next product 10 to be processed is input into the processing position after correction and positioning, realizing continuous cycle processing of dual workstations.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A dual-station laser cutting device, characterized in that, It includes a laser mechanism (1), a conveying mechanism and a flipping mechanism. The conveying mechanism is located between the laser mechanism (1) and the flipping mechanism. Two robotic arms (4) are arranged side by side between the laser mechanism (1) and the conveying mechanism. The conveying mechanism includes two main conveyor belts (2) and two correction modules (3), with the two correction modules (3) corresponding to the two main conveyor belts (2) respectively. The correction module (3) includes a support platform (301) and an X-axis correction component and a Y-axis correction component disposed on the support platform (301). The X-axis correction component is used to drive the product (10) to move along the transmission direction of the main conveyor belt (2), and the Y-axis correction component is used to drive the product (10) to adjust its position along the direction perpendicular to the transmission of the main conveyor belt (2). The robotic arm (4) is equipped with a CCD camera, the outer edge of the support platform (301) is equipped with a CCD corner mark, the four corners of the support platform (301) are equipped with position-sensitive detectors, and the robotic arm (4) is equipped with an infrared sensor for cooperating with the position-sensitive detector.

2. The dual-station laser cutting equipment according to claim 1, characterized in that: A lifting assembly is provided in the middle of the support platform (301). The lifting assembly includes a driver and a correction platform (304). The correction platform (304) is rotatably mounted on the driver. The driver is used to drive the correction platform (304) to move up and down. The X-axis correction assembly consists of at least two sets of X-axis correction rollers (302). The two sets of X-axis correction rollers (302) are symmetrically arranged on both sides of the correction platform (304). The Y-axis correction assembly consists of at least two sets of Y-axis correction rollers (303). The two sets of Y-axis correction rollers (303) are symmetrically arranged on both sides of the correction platform (304).

3. The dual-station laser cutting equipment according to claim 1, characterized in that: The laser mechanism (1) includes a gantry (101) and two support modules. The gantry (101) is located in the middle of the two support modules. Two laser cutting modules are provided on the gantry (101), and the two laser cutting modules correspond to the two support modules respectively.

4. The dual-station laser cutting equipment according to claim 3, characterized in that: The laser cutting module includes a movable seat (102) that can move laterally along the gantry (101), a laser cutting head (103) disposed on the movable seat (102), and an adjustment component (104) connected to the movable seat (102). The adjustment component (104) can drive the laser cutting head (103) to adjust its position in the vertical direction. The carrying module includes a linear mover (105) and a vacuum adsorption platform (106). The linear mover (105) can drive the vacuum adsorption platform (106) to move in a direction perpendicular to the lateral direction of the gantry (101).

5. The dual-station laser cutting equipment according to claim 1, characterized in that: The flipping mechanism is provided with a feeding module at one end away from the conveying mechanism. The feeding module includes a feeding conveyor belt (5) and a barcode scanner (6) located above the feeding conveyor belt (5).

6. The dual-station laser cutting equipment according to claim 5, characterized in that: The flipping mechanism includes two flipping modules (7), which are respectively set at the feed ends of the two main conveyor belts (2).

7. The dual-station laser cutting equipment according to claim 6, characterized in that: The flipping module (7) includes a support base, a flipping motor, a drive motor, and two oppositely arranged roller groups. The support base is fixedly installed at the feed end of the main conveyor belt (2). The flipping motor is installed on the support base. The flipping motor is connected to the two roller groups through a fixed bracket. The drive motor is installed on the fixed bracket and connected to the roller groups. A gap is left between the two roller groups for the product (10) to pass through. The flipping motor can drive the fixed bracket to rotate as a whole.

8. The dual-station laser cutting equipment according to claim 1, characterized in that: The robotic arm (4) is equipped with multiple vacuum suction cups (8) via a support frame, and the CCD camera and infrared sensor are detachably mounted on the support frame.

9. A product positioning method, applicable to a dual-station laser cutting device as described in any one of claims 1-8, characterized in that, Includes the following steps: Step 1: The product (10) is transported to the correction module (3), and the robotic arm (4) moves the CCD camera and infrared sensor above the support platform (301); Step 2: The robotic arm (4) completes the positioning cooperation with the infrared sensor and the position sensitive detector on its surface to determine the spatial position of the robotic arm (4). The coordinate system deviation of the robotic arm (4) is calculated by combining the position of the corner mark, and the calibration and positioning of the robotic arm (4) is completed. Step 3: After completing the calibration and positioning, the robotic arm (4) completes the initial position acquisition through the CCD camera and the CCD corner mark on the outer edge of the carrier platform (301) to obtain the current position deviation information of the product (10); Step 4: The collected position deviation information is transmitted to the X-axis correction component and the Y-axis correction component. The X-axis correction component drives the product (10) to move along the main conveyor belt (2) by rotating the roller, and adjusts the position of the product (10) in the conveying direction. The Y-axis correction component drives the product (10) to move along the vertical conveying direction by rotating the roller, and completes the lateral position adjustment. Then the robotic arm (4) sends the product (10) to the vacuum adsorption platform (106) through the vacuum suction cup (8) to complete the overall correction and positioning.

10. The product positioning method according to claim 9, characterized in that, In step 3, the current position deviation information of the product (10) includes the X-direction offset, Y-direction offset and deflection angle of the product (10) on the bearing platform (301) relative to the standard position. The offset and deflection angle are calculated by the CCD camera after collecting the edge features of the product (10) and combining them with the pre-calibrated standard position coordinates. When the product (10) deflects, the correction platform (304) lifts the center of the product (10) locally, and the two sets of X-axis correction rollers (302) or the two sets of Y-axis correction rollers (303) rotate synchronously in opposite directions to adjust the deflection angle of the product (10). After the deflection angle is corrected to within the allowable error range, the position adjustment in the X-axis direction and Y-axis direction is completed.

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