Laser Engraving Chuck With Interchangeable Jaws for Delicate Objects
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Solution Overview
Problem
Traditional chuck-style rotary attachments for laser engraving are cumbersome, poorly suited for delicate objects, lack tilting capabilities, and have limited dimensions, requiring multiple gripping devices for various shapes and sizes, leading to instability and space inefficiency.
Innovation Solution
A chuck-style rotary attachment with a chuck housing, self-centering jaw bases, and a scroll wheel, featuring interchangeable jaws and jaw extenders with bulbous portions and stoppers, allowing for adjustable grip and tilting, accommodating a variety of objects without needing multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional chuck-style rotary attachments use metal jaws to secure articles, then articles slipping off is prevented, but delicate articles such as glassware can be easily broken or deformed
Solution Approach 1:
The patent changes the material parameter of the gripping surfaces from metal to rubber, transforming the interaction characteristics between the chuck and the article. This material substitution allows the gripping surfaces to conform to delicate shapes while providing sufficient friction to prevent slippage without causing damage through excessive hardness or pressure concentration.
Solution Approach 2:
The rubber gripping surfaces are designed with specific local properties including compliance and friction characteristics that differ from the metal structure. The rubber material provides localized adaptation to article contours while maintaining secure grip, creating a differentiated gripping interface that is gentle yet effective for delicate items.
2Force
If traditional chuck-style rotary attachments are designed for heavy metal parts, then strong gripping force is provided, but the attachments become overly cumbersome and unsuitable for delicate articles
Solution Approach 1:
The chuck is divided into distinct functional components: the structural metal body that provides rotational mechanics, and the separate rubber gripping surfaces that provide article-specific contact. This segmentation allows the heavy-duty structural elements to be separated from the delicate interaction elements, enabling strong gripping force without the entire device being cumbersome.
Solution Approach 2:
The rubber gripping surfaces act as an intermediary between the metal chuck structure and the article being held. This intermediate layer provides the necessary compliance and friction for delicate items while the metal structure behind it maintains the mechanical strength and rotational capability, combining features of both light and heavy-duty designs.
3Device complexity
If traditional chuck-style rotary attachments have fixed jaw positions, then simple structure is maintained, but tapered objects cannot be effectively engraved due to lack of tilting capability
Solution Approach 1:
The patent introduces dynamic adjustability to the jaw positions, allowing them to be tilted or repositioned relative to the rotational axis. This dynamic capability enables the chuck to accommodate tapered objects by adjusting the jaw orientation, while the adjustment mechanism itself remains relatively simple, maintaining a good balance between structural simplicity and functional versatility.
4Ease of manufacture
If traditional chuck-style rotary attachments have fixed chuck height and jaw reach, then manufacturing simplicity is maintained, but the dimensions of accommodatable articles are limited
Solution Approach 1:
The chuck is designed with universal features including adjustable jaw positions and interchangeable rubber gripping surfaces that can accommodate articles of varying dimensions. The basic chuck structure remains simple to manufacture, but through standardized adjustment mechanisms and modular gripping elements, it gains the ability to handle a wide range of article sizes and shapes without requiring multiple specialized chucks.
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
Provides secure, stable grip for diverse objects, reducing slippage and space requirements, enabling precise engraving on delicate items and varying shapes with improved holding power and versatility.
Implementation Method 1
The rubber gripping surfaces may facilitate rotation of the delicate articles when placed upon said rubber gripping surfaces, by employing the force of friction
Data Source
AI summary
An attachment apparatus for laser engraving includes a chuck housing, a scroll wheel in mechanical communication with a plurality of self-centering jaw bases, at least one jaw extender configured to secure to any of the plurality of self-centering jaw bases, and at least one interchangeable jaw configured to secure to any of the at least one jaw extenders. Each jaw base comprises at least one jaw base hole. Each of the at least one jaw extenders comprises two of the at least one interchangeable jaws. The scroll wheel can be actuated to move the self-centering jaw bases, allowing the interchangeable jaws to engage with a surface of an article to secure it for laser engraving. The apparatus may include adjustable alignment stoppers, and the jaw extenders may be configured to rotate for improved contact with the article surface.