Adjustable Feeler Roller for Panel Machining Wear Compensation
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Solution Overview
Problem
Existing devices for processing narrow surfaces of panel-shaped workpieces, such as those made of wood or plastic, face challenges in maintaining precise positioning between the tool and workpiece due to tool wear and changes in material strength, requiring frequent adjustments and replacements of feeler rollers, leading to increased machine downtimes.
Innovation Solution
A device with an adjustable feeler roller that can change diameter to maintain consistent positioning with the workpiece, using a concentrically stretchable ring and pressure transmission means, such as a hydraulic piston, allowing for compensation of tool wear without needing to replace the feeler roller, thus reducing machine downtimes and simplifying tool changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the feeler roller diameter is fixed, then the structure is simple and reliable, but tool wear cannot be compensated without replacing the feeler roller, increasing machine downtime
Solution Approach 1:
The feeler roller is designed with an adjustable diameter through a conical adjustment mechanism. The roller body contains a conical hole that receives an adjustment cone, allowing the outer diameter to be varied by rotating the adjustment cone. This dynamic adjustment capability enables compensation for tool wear without replacing the feeler roller, thus reducing machine downtime while maintaining positioning accuracy.
Solution Approach 2:
The invention changes the physical parameter of the feeler roller diameter from fixed to variable. By providing an adjustment mechanism that modifies the roller's outer diameter, the system can adapt to different tool wear conditions and material requirements. This parameter change allows the same feeler roller to maintain accurate positioning across multiple tools and materials, eliminating the need for frequent replacements.
2Manufacturing precision
If the feeler roller diameter is adjusted frequently, then tool wear compensation is improved, but the device complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The adjustment mechanism is integrated directly into the feeler roller body. The conical adjustment feature is formed as part of the roller's internal structure, and the adjustment cone is housed within the roller itself. This merging of the adjustment mechanism with the roller body minimizes additional components and keeps the overall structure relatively simple while enabling diameter adjustment.
Solution Approach 2:
The adjustment cone is nested within the conical hole of the feeler roller body. This nested arrangement allows the adjustment mechanism to be contained within the roller itself, avoiding external adjustment devices that would increase complexity. The compact nested design maintains positioning accuracy while adding minimal structural complexity.
3Stability of the object's composition
If a separate support arm is used for the feeler roller, then the roller is stable, but the weight of moving parts increases reducing acceleration and tracking behavior
Solution Approach 1:
The feeler roller is mounted directly on the tool holder or tool carrier, merging the roller support function with the tool mounting structure. This eliminates the need for a separate support arm, significantly reducing the weight of moving parts. The direct mounting maintains stability through rigid attachment while improving acceleration and tracking behavior due to the reduced mass.
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
The adjustable feeler roller ensures precise machining and reduces machine downtimes by allowing for diameter adjustments to compensate for tool wear, eliminating the need for frequent replacements and simplifying the process, while maintaining high system rigidity and accuracy across various workpiece geometries.
Implementation Method 1
pressure transmission means, such as a hydraulic piston, allowing for compensation of tool wear
Implementation Method 2
a feeler roller with an adjustable diameter, in particular with a concentrically stretchable ring
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a device for machining preferably board-shaped workpieces, preferably made at least in segments of wood, wood materials, plastic, or the like, having a tool arrangement acting on the workpiece and comprising at least one tool, and a contact device having at least one contact roller disposed rotatably about the rotary axis thereof adjacent to the tool and controlling the position of the tool relative to the workpiece, wherein a diameter of the contact roller is adjustable.