Laser Processing Machine Gravity-Assisted Dust Removal
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Solution Overview
Problem
Laser processing machines face issues with dust accumulation due to static electricity and larger dust particles falling back onto the workpiece, leading to potential short-circuits and requiring multiple machine transfers for processing and detection, which wastes time and reduces production efficiency.
Innovation Solution
The laser processing machine incorporates a cavity design with a laser system emitting a beam opposite to the gravity direction, an adsorption surface on the processing platform, and an upper motion platform to move the platform, allowing dust to be removed by gravity and enabling simultaneous processing and detection on the same machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If an air-suction device is used to remove dust, then dust removal is improved, but larger dust particles fall back onto the workpiece or are adsorbed due to static electricity
Solution Approach 1:
The patent utilizes the harmful static electricity effect to beneficially adsorb dust particles onto the processing platform. By making the platform surface conductive or grounded, the static charge naturally attracts and holds dust particles, converting what was previously a harmful adsorption effect into a useful dust collection mechanism.
Solution Approach 2:
The patent employs an air suction device that generates negative pressure to actively draw dust particles away from the workpiece. This pneumatic approach complements the static electricity adsorption, creating a dual mechanism for comprehensive dust removal that addresses both fine and larger particles.
2Productivity
If the workpiece is transferred between different machines for processing and detection, then processing and detection can be performed, but time is wasted due to repeated location and transfer
Solution Approach 1:
The patent integrates both laser processing and detection functions into a single machine system. The processing platform serves dual purposes: it holds the workpiece during laser treatment and subsequently supports it for detection. This merging eliminates the need for separate machines and repeated transfer operations.
Solution Approach 2:
The processing platform is designed with multi-functionality, serving both as a processing support and a detection platform. The platform's conductive surface and structural design accommodate both laser processing operations and subsequent electrical or visual detection, allowing one component to fulfill multiple roles in the workflow.
3Manufacturing precision
If the laser beam travels downward against gravity, then processing precision is improved, but dust generated by gasification falls back onto the workpiece surface
Solution Approach 1:
The patent creates an equipotential environment by making the processing platform conductive or grounded. This equalizes the electrical potential across the platform surface, preventing static charge accumulation that would otherwise cause dust adsorption. The equipotential state ensures dust particles are not attracted to specific areas of the workpiece.
Solution Approach 2:
The patent converts the potentially harmful dust generation from laser processing into a beneficial dust collection opportunity. By utilizing the conductive platform and static electricity effects, dust particles that would normally contaminate the workpiece are instead attracted to and held by the platform surface, where they can be subsequently removed by air suction.
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
This design effectively prevents dust from causing short-circuits and allows for concurrent processing and detection, enhancing production capacity and yield by eliminating the need for multiple machine transfers.
Implementation Method 1
a laser system (220), disposed at a lower part inside the cavity (210), and used for outputting a laser beam (500)
Implementation Method 2
dust is effectively removed by gravity
Data Source
AI summary
A laser processing machine includes a cavity, a laser system, at least one processing platform, and at least one upper motion platform. The laser system is disposed at a lower part inside the cavity, and used for outputting a laser beam. A traveling direction of the laser beam is opposite to the gravity direction. The processing platform is disposed at an upper part inside the cavity, and includes an adsorption surface and a connection surface facing each other. The adsorption surface is located below the connection surface, and is used for adsorbing a workpiece. The upper motion platform is disposed at the upper part inside the cavity, and is correspondingly connected to the connection surface of the processing platform, in order to cause the processing platform to move.