Multi-Tool Sheet Perimeter Working With Selective Constraint Stabilization
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Solution Overview
Problem
Existing sheet working machines require multiple passes with different tools for perimeter operations, leading to inefficiencies, vibrations, and potential edge damage, especially when integrated with higher-speed processes.
Innovation Solution
A machine with multiple spindles and stabilization units that allow simultaneous multi-tool operation by selectively activating constraint members to stabilize the sheet, minimizing vibrations and ensuring continuous contact with tools for precise, high-quality finishing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple tools are used for different perimeter workings (plane grinding and filleting), then the quality and versatility of the working process is improved, but the working time increases significantly due to sequential passes
Solution Approach 1:
The patent combines multiple tools (plane grinding wheel and filleting wheel) on a single spindle, allowing both tools to work simultaneously on opposite sides of the sheet perimeter. This merging of tools eliminates the need for sequential passes and reduces working time while maintaining the capability to perform different perimeter workings.
Solution Approach 2:
The spindle is designed to accommodate multiple tools with different functions (plane grinding and filleting) that can operate simultaneously or sequentially on the same spindle. This multi-functionality allows a single spindle assembly to perform various perimeter working operations without requiring separate spindles for each tool type.
2Productivity
If multiple spindles with different tools are arranged to work the same perimeter simultaneously, then productivity is improved, but the device complexity, dimensions, and costs increase significantly
Solution Approach 1:
Instead of using multiple separate spindles to work different parts of the perimeter simultaneously, the patent merges multiple tools onto a single spindle that rotates once to work the entire perimeter. This approach achieves high productivity while avoiding the complexity of multiple spindle assemblies with their respective accessories.
Solution Approach 2:
The patent transitions from a spatial arrangement of multiple spindles (horizontal dimension) to a temporal arrangement where a single spindle performs multiple operations sequentially during one rotation. This dimensional change from space to time allows multiple functions to be achieved without increasing physical complexity.
3Productivity
If the grinding machine operates at high speed to match downstream production line speed, then overall efficiency is improved, but vibrations and mechanical stresses increase causing edge damage
Solution Approach 1:
The patent employs dynamic stabilization elements that can adjust their position and pressure during the grinding operation. These elements actively compensate for vibrations and mechanical stresses in real-time, allowing high-speed operation without compromising edge quality or causing damage.
Solution Approach 2:
The stabilization elements act as intermediaries between the grinding tool and the sheet edge. These elements absorb and dampen vibrations and stresses, protecting the edge from direct exposure to harmful forces while still allowing efficient material removal at high speeds.
4Manufacturing precision
If stabilization elements are added to reduce vibrations during multi-tool operation, then edge quality is improved, but the device complexity increases
Solution Approach 1:
The stabilization elements are integrated into the existing spindle and tool assembly structure, merging the stabilization function with the cutting function in a single unified assembly. This approach reduces edge quality issues without significantly increasing device complexity, as the stabilization elements work in conjunction with the existing spindle mechanism rather than adding separate stabilization systems.
Data Source
AI summary
An apparatus and a related method for carrying out working on the perimeter of a sheet having a first lateral surface an opposing second lateral surface and a perimeter edge, comprising multi-tool working heads and sliding constraint members that can be selectively activated to stabilize the working.