Laser DPM Visual Notification for Real-Time Part Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high-speed production environments, operators face challenges in verifying the successful application and quality of direct part markings (DPM) due to inefficient notification systems, leading to increased cycle times and reduced productivity.
Innovation Solution
A laser marking system that illuminates a visual indicator directly on the part during processing, providing real-time feedback to operators on the status and quality of DPM features, using a separate illumination element or the laser marking unit's optical path to convey information such as completion or failure of the marking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional external visual and audible indicators are used to notify operators of DPM marking status, then operators can be informed of marking completion, but operators lose sight and focus of the parts to verify quality in high-speed operations
Solution Approach 1:
The patent uses the part itself as an intermediary carrier for visual information. Instead of external indicators requiring operator attention diversion, the marking system projects visual indicators directly onto the part surface, making the information delivery medium the object being processed. This eliminates the need for operators to shift focus while maintaining real-time quality verification capability.
Solution Approach 2:
The invention transitions from external spatial notification (indicators on machine housing or separate displays) to surface-level notification by projecting visual indicators onto the part surface itself. This dimensional shift allows information to be delivered in the same operational plane as the part, eliminating the need for operator attention diversion while maintaining continuous visual contact with the workpiece.
2Measurement precision
If operators continuously monitor parts to verify DPM quality in high-speed production, then quality verification is thorough, but cycle time increases and productivity decreases
Solution Approach 1:
The system implements automated optical inspection that continuously monitors DPM quality and provides real-time feedback through visual indicators projected on parts. This automated feedback loop replaces manual continuous monitoring, maintaining quality verification accuracy while eliminating the time loss associated with operator attention shifts, thereby preserving productivity in high-speed production environments.
3Loss of information
If external notification systems are used for DPM marking status, then operators receive information about marking completion, but the notification system adds device complexity
Solution Approach 1:
The marking system integrates multiple functions into a single unified process: the laser marking unit performs both the DPM marking and the projection of visual status indicators onto the part. This multi-functionality eliminates the need for separate external notification devices, reducing overall system complexity while maintaining comprehensive information delivery about marking status and quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances operator efficiency by allowing real-time verification of DPM features without diverting attention from the production process, reducing cycle times and improving productivity through clear and immediate visual notifications.
Implementation Method 1
A visual indicator may be produced by a separate illumination element, such as a light emitting diode (LED) or other illumination device, that produces the visual indicator via at least a portion of an optical or light path of a laser marking unit
Data Source
Figure 1A~1C
Figure 2A~2B
Figure 3
AI summary
A system and method for performing laser marking may include identifying an event performed by a laser marking system. A laser marking unit may be driven to mark the feature on the part. The part may be illuminated with a visible illumination signal to indicate an occurrence of the event in response to identifying the event.