Grasper-Guided Cutting Structure for Precise Steel Member Separation
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Solution Overview
Problem
Existing cutting technologies, such as hydraulic cutters and gas cutting machines, face limitations when cutting large steel members, requiring complex mechanisms and posing risks to workers due to the need for manual intervention and unstable operating conditions.
Innovation Solution
A cutting device with a grasp unit comprising movable graspers that detect the position of the cutting object and set precise cutting start and end positions, allowing the cutting unit to operate efficiently and safely without requiring complex input of steel member dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If hydraulic cutter is used to cut large steel members, then cutting capability is improved, but the cutting depth is insufficient and excessive load is applied to the hydraulic cutter
Solution Approach 1:
The cutting process is divided into multiple segments: first, the hydraulic cutter performs initial cutting to a certain depth; then, a twisting mechanism applies rotational force to complete the cut. This segmentation allows each component to perform its optimized function without excessive load.
Solution Approach 2:
A twisting mechanism acts as an intermediary between the hydraulic cutter and the steel member. After the hydraulic cutter creates an initial cut, the twisting mechanism completes the separation by applying rotational force, preventing excessive load on the hydraulic cutter.
2Strength
If manual cutting with gas cutting machine is performed, then cutting depth is improved, but worker safety is compromised due to high and unstable location
Solution Approach 1:
The system performs cutting operations autonomously without requiring workers to manually operate equipment at dangerous heights. The hydraulic cutter and twisting mechanism work automatically under remote or automated control, eliminating worker exposure to hazardous environments.
Solution Approach 2:
Manual gas cutting operations are replaced by an automated system combining hydraulic cutting and mechanical twisting. This substitution eliminates the need for workers to physically position and operate equipment at unstable, high locations.
3Ease of operation
If cutting start and end positions are not precisely specified, then operational flexibility is improved, but needless cutting operation occurs
Solution Approach 1:
The system incorporates position detection feedback to identify the exact start and end positions of the cutting object. This feedback mechanism enables precise control of the cutting and twisting operations, preventing needless operations while maintaining ease of use through automated positioning.
4Manufacturing precision
If multiple cutting tools are used with independent movements, then cutting precision is improved, but mechanism complexity increases
Solution Approach 1:
The system merges the cutting function and twisting function into a single integrated device. The hydraulic cutter and twisting mechanism share a common support structure and control system, reducing overall complexity while maintaining cutting precision through coordinated operation of the combined functions.
Data Source
AI summary
A cutting device capable of efficiently cutting an object with a simple configuration includes a grasp unit including a first grasper and a second grasper movable in an opening and closing directions to grasp the object, a cutting unit disposed side by side with the first and second graspers and moved in a cutting direction along the opening and closing directions to cut the object, and a position setter setting a cutting start position and a cutting end position based on respective positions of the first and second graspers that are grasping the object, respectively.