Laser Head Autofocusing With Fixed Module Position
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Solution Overview
Problem
Existing laser processing devices face issues with unstable fixation and easy loosening of the laser module due to its movement during processing, leading to inaccurate focal adjustments and potential positional deviations.
Innovation Solution
A laser module design that accommodates both the laser emitting apparatus and focusing apparatus within a housing, allowing focal position adjustment through a focusing apparatus without altering the laser module's height, featuring a movable focusing lens and a driving apparatus for automated focusing, and incorporating a ranging sensor for precise focal adjustments based on workpiece thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a locking structure is used to fix the height of the laser module, then the focal position can be adjusted and fixed, but the locking structure may loosen during laser processing operations, leading to unstable fixation
Solution Approach 1:
The invention divides the focusing function from the laser module height adjustment. The laser module height remains fixed and stable, while a separate focusing lens assembly handles focal position adjustments through z-axis movement. This segmentation prevents the locking structure from loosening while maintaining both stable fixation and adjustable focus.
Solution Approach 2:
A focusing lens assembly acts as an intermediary between the laser module and the workpiece. This intermediate component carries the focusing function, allowing the laser module itself to remain stationary and securely locked, while the focusing lens moves independently to achieve focal adjustment without affecting the stability of the main module.
2Adaptability or versatility
If the height of the laser module is manually adjusted to change the focal position, then the focusing requirement is met, but the laser module requires movement during processing which causes the locking structure to loosen
Solution Approach 1:
The invention separates the laser module (which remains fixed) from the focusing lens assembly (which moves for focal adjustment). This segmentation allows focal adaptability through lens movement while the laser module maintains stable fixation without requiring loosening and tightening of locking structures during processing.
Solution Approach 2:
The focusing lens assembly is designed to move dynamically along the z-axis for focal adjustment, while the laser module remains stationary. This dynamic focusing mechanism provides the needed adaptability without compromising the static stability of the locked laser module position.
3Manufacturing precision
If the laser module moves during processing to adjust focal position, then focusing can be achieved, but the locking structure loosens causing positional deviations
Solution Approach 1:
The invention segments the positioning function: the laser module's x-y position remains fixed and accurate, while the focusing lens assembly handles z-axis positioning for focal adjustment. This prevents positional deviations in the main module while achieving precise focal positioning through the movable lens assembly.
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
Ensures stable focal positioning, improves processing accuracy, reduces manual intervention, and enhances the compactness and reliability of the laser module by minimizing space requirements and preventing positional deviations, thus ensuring high-quality laser processing.
Implementation Method 1
the focusing lens is configured to focus the laser emitted by the laser emitting apparatus
Implementation Method 2
the reflecting mirror is configured to reflect the laser from the laser emitting apparatus to the focusing lens
Data Source
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AI summary
The present application provides a laser module and a laser processing device. The laser module includes: a housing, provided thereon with a laser exiting part capable of allowing a laser to emit from an interior of the housing; a laser emitting apparatus, accommodated in the housing and configured to emit a laser; and a focusing apparatus, accommodated in the housing and located between the laser exiting part and the laser emitting apparatus, wherein the focusing apparatus is configured to adjust a focal position of the laser emitting apparatus and enable laser emitted by the laser emitting apparatus to emit from the laser exiting part. According to the laser module provided by the present application, focusing can be realized under the condition that the height position of the laser module is not changed, the problems of unstable fixation of the laser module, easy loosening of the laser module and the like are avoided, and a user does not need to manually adjust a focusing process, thereby realizing automatic focusing, and improving the accuracy of focus adjustment.