Awards

This patent adapts to different precision requirements through the same optical path/lateral axis visual positioning selection, solves the traditional marking interruption problem through scratch pre-processing, multi-faceted flipping, and automatic feeding, and improves the adaptability to complex working conditions through environmental compensation and modularization. Its core value lies in integrating discrete functions (positioning, cleaning, flipping) into a highly fluid system, especially meeting the dual demands of "zero downtime" and "micrometer level precision" in high-end manufacturing fields such as precision electronics and automotive components. Future directions can explore AI vision for real-time path planning, further reducing positioning latency

1、 Innovation in Visual Positioning Technology: The Core of Accuracy and Efficiency

The design of the same optical path system integrates the laser path and visual path through a 45 ° beam splitter, allowing the laser generator and visual camera to share the same optical path. The laser engraving beam penetrates the beam splitter and directly hits the workpiece, while the reflected light from the workpiece is refracted by the beam splitter and enters the visual camera, achieving synchronization between positioning and detection and avoiding traditional dual system calibration errors.

Advantages: The positioning accuracy reaches micrometer level (such as chip engraving), and avoids laser damage to visual sensors.

Side axis visual positioning mechanism (for large format applications)

Adopting a separate industrial camera and XYZ manual precision slide table, independent of the laser galvanometer system. By adjusting the position of the industrial camera through the waist shaped hole, a full image of large-sized workpieces (such as panels over 1m ²) can be captured at once, avoiding multiple mechanical displacements caused by limited coaxial field of view.

Algorithm collaboration: The visual system directly outputs coordinates to the marking software, eliminating accumulated mechanical movement errors and improving positioning efficiency by 40%.

Visual stitching positioning (ultra large format solution)

For oversized workpieces (such as automotive sheet metal), XY two-dimensional mobile platform+CCD visual positioning is used:

Divide the marking surface into several areas;

After completing the marking of each area, capture the edge features of the marked pattern;

Calibrate the starting position of the next area through image matching algorithm to achieve seamless stitching.

Accuracy guarantee: The position error is controlled within ± 0.05mm, suitable for aerospace label processing.

2、 Optimization Design of Institutional Efficiency: Automation and Multi functional Integration

Surface pretreatment mechanism: Integrated rotating scraping arm system: When the workpiece rotates to the marking station, the rubber scraping arm automatically rotates 180 ° to scrape off rust, oil, or dust on the surface to be marked (especially suitable for metal parts), ensuring that the laser directly acts on the clean surface and reducing rework rate.

Linkage design: The scraping arm movement is synchronized with the rotating seat, without additional power consumption.

Multi station flipping mechanism

Clamping rotation integrated module: The bi-directional screw is driven by a gear set to synchronize the rotation of the clamping block during horizontal movement, achieving automatic flipping of multiple surfaces of the workpiece. Combining the visual system to independently locate each side, completing multi-faceted marking in a single feeding process (such as electronic shell hexahedrons).

Case: The marking efficiency of the mobile keyboard production line has been improved by 60%.

Automatic Material Supply System

Loading alarm linkage: The lifting plate automatically transports materials to the marking station; When the material is exhausted, the contact block closes to trigger the alarm, avoiding the equipment from idling and stopping. Cooperate with the conveyor track and vibrating mirror marking head to achieve unmanned operation throughout the entire process.

Typical application: The automotive parts production line runs continuously for 8 hours, reducing downtime by 90%.

3、 Environmental adaptability and stability design

Dust prevention and smoke treatment

Transparent protective cover+negative pressure filtration system: A sealing cover is installed around the header, and the exhaust fan purifies the etched smoke through a smoke filter (multi-layer activated carbon+HEPA) to prevent dust from adhering to the visual lens or contaminating the workshop.

Actual test results: The lens cleaning cycle has been extended to 500 hours, and the positioning stability has been significantly improved by 7.

Environmental light/temperature drift compensation

Dynamic light source adjustment: Integrated lighting sensor, automatically adjusts the brightness of the circular LED to ensure visual image consistency.

Temperature drift correction: The substrate is equipped with a temperature sensor that corrects image distortion caused by lens thermal deformation in real-time through FPGA.

Modular quick release interface

The industrial camera lens adopts a tool free snap on installation, with a replacement time of less than 30 seconds; The electrical interface is integrated into the aviation plug and supports "hot swappable" maintenance