Oscillating Saw Cutting Composite Materials with Gimbal
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Solution Overview
Problem
Cutting composite materials, particularly prepreg layups and tooling surfaces, is labor-intensive and lacks precision when using hand-held oscillating saws, especially when cutting at angles for beveled edges, which is challenging and results in inefficiencies and increased material waste.
Innovation Solution
A system comprising an oscillating saw suspended from a rotatable head on an arm with a two-axis gimbal for adjusting cutting angles, coupled with a material clamp and a controller for automated movement, allowing precise cutting of composite materials with the ability to cut at various angles and orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If hand-held oscillating saws are used for cutting composite materials, then the cutting operation can be performed, but the cutting precision and edge uniformity deteriorate
Solution Approach 1:
The cutting system is divided into separate functional components: a fixed oscillating saw mechanism for precise cutting, a独立 material clamp for securing the workpiece, and a独立 guiding mechanism for positioning. This segmentation allows each component to perform its function optimally without the compromises inherent in hand-held tools, thereby improving cutting precision while maintaining ease of operation through the automated guidance system.
Solution Approach 2:
The patent replaces the manual mechanical control of hand-held saws with an automated guiding mechanism that directs the oscillating saw blade. This substitution eliminates the variability and imprecision of manual operation while maintaining the cutting function, directly addressing the contradiction between cutting precision and ease of operation.
2Productivity
If hand-held oscillating saws are used for cutting at angles, then the cutting operation can be performed, but the cutting efficiency and material utilization deteriorate
Solution Approach 1:
The system incorporates a rotatable head mechanism that enables dynamic adjustment of the cutting angle without requiring manual repositioning or multiple setup operations. This dynamic capability allows efficient cutting at various angles while maintaining precision, reducing both time consumption and material waste compared to static hand-held saw operations.
Solution Approach 2:
The automated guiding mechanism with motorized angle adjustment replaces manual positioning and cutting operations. This substitution enables precise angular cuts to be executed automatically, improving cutting efficiency and minimizing material waste by eliminating the imprecision and material loss associated with manual angular cutting.
3Manufacturing precision
If fixed cutting equipment is used to improve precision, then the cutting precision improves, but the device complexity increases
Solution Approach 1:
The cutting system is designed with multi-functional components that perform multiple operations. The oscillating saw mechanism can cut at various angles and positions, the guiding mechanism provides both positioning and angle control, and the clamp system secures materials of different sizes. This universality reduces the need for multiple specialized devices, thereby improving precision without proportionally increasing overall system complexity.
Solution Approach 2:
The system adds rotational freedom through the rotatable head mechanism, transforming a simple linear cutting device into one capable of angular adjustments. This dimensional enhancement allows precise angular cuts without requiring multiple fixed cutting stations, thereby improving precision while minimizing the increase in device complexity through elegant mechanical design.
Data Source
AI summary
Embodiments of this disclosure provide a system and method for cutting composite materials. The system includes a material supporting surface, an oscillating saw suspended from a rotatable head on an arm, a two-axis gimbal coupled to the rotatable head for adjusting a cutting angle of the oscillating saw, and a material clamp for clasping the composite material to prevent the composite material from slipping while being cut with the oscillating saw. An automated embodiment of the system further includes a controller for instructing the oscillating saw to cut the composite material by guiding the saw via coordinated movement of the rotatable head, the arm, and the gimbal. A method of cutting a woven composite material includes feeding the material on a support surface, providing an oscillating saw blade on a guiding mechanism, and cutting the material by moving the saw blade in a direction based on the guiding mechanism.