Pivoting Gantry Alignment for Inclined-Edge Woodworking

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Solution Overview

Problem

Existing woodworking devices struggle to create drilling patterns or grooves in workpieces with edges that are not perpendicular to the feed direction, resulting in inconsistent hole or groove distances from the edge.

Innovation Solution

The woodworking device features a pivotably mounted support crossbeam that allows the machining head to be adjusted parallel to the workpiece transport plane, enabling precise alignment of drilling patterns or grooves relative to angled edges, facilitated by a control system that detects the workpiece's angle and adjusts the support crossbeam accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the support crossbeam is fixed in position, then the device structure is simple, but the machining precision deteriorates when workpiece edges are inclined

Engineering Contradiction:
Improvedistance consistency of holes/grooves from edgeVSAvoidsupport crossbeam mounting structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The support crossbeam is made pivotable about a vertical axis instead of being fixed, allowing it to dynamically adjust its orientation to match the workpiece edge angle. This dynamic adjustment capability enables consistent machining precision for workpieces with various edge inclinations without requiring complex individual adjustment mechanisms for each machining head.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The positioning function is segmented between the pivotable support crossbeam (which handles overall orientation adjustment) and the individually displaceable machining heads (which handle position adjustment along the crossbeam). This segmentation allows the system to maintain simplicity while achieving precise machining on inclined edges.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the machining head is displaceable along the support crossbeam, then the drilling pattern can be adjusted, but the distance from the edge becomes inconsistent on inclined workpieces

Engineering Contradiction:
Improvedrilling pattern positioning flexibilityVSAvoiddistance from edge consistency
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The support crossbeam's pivotability provides a dynamic base orientation that adapts to the workpiece edge angle. When the crossbeam pivots to match the inclined edge, the machining head's displacement along the crossbeam maintains a constant perpendicular distance relationship to the edge, thereby preserving both positioning flexibility and distance consistency.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If the support crossbeam is pivotably mounted, then the machining precision improves for inclined edges, but the device complexity increases

Engineering Contradiction:
Improvealignment accuracy with inclined edgesVSAvoidpivot mechanism and control system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The pivotable support crossbeam serves multiple functions: it provides the reference axis for positioning, accommodates the machining heads, and automatically adapts to various workpiece edge angles. This multi-functionality reduces the need for additional complex adjustment mechanisms, thereby limiting the increase in device complexity while achieving improved alignment accuracy.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The control system receives information about workpiece edge angles and automatically adjusts the support crossbeam's pivot position accordingly. This feedback mechanism enables precise alignment with inclined edges without requiring manual intervention or complex mechanical adjustment systems.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4371720B1Woodworking device and method for operating same
Publication Date: 2025.07.16 IMA SCHELLING DEUT GMBH
  • EP4371720B1 patent drawingFigure 1
  • EP4371720B1 patent drawingFigure 2A~2B
  • EP4371720B1 patent drawingFigure 3A~3B

AI summary

The woodworking device (1) for processing plate-shaped workpieces (W1, W2) made of wood or wood substitutes has at least one processing head (44). This can be a drill head (44) with a plurality of drill bits for simultaneously drilling a plurality of holes (6) into a workpiece (W1, W2) or a saw head with a grooving saw for cutting a groove into a workpiece (W1, W2). Furthermore, a support device (5), preferably a table (5), is provided, which is designed to support the workpieces (W1, W2). In addition, the woodworking device (1) has a transport device (31-34) that moves the workpieces (W1, W2) on or along the feed direction (X) in a workpiece transport plane (53).Furthermore, the woodworking device (1) has a machining head support device (4), preferably a gantry (4), with a support traverse (41) spanning at least part of the workpiece transport plane (53) of the support device (5), preferably in a direction (Y, Z) transverse to the feed direction, on which the at least one machining head (44) is arranged. The support traverse (41) is pivotably mounted about a real or imaginary pivot axis (A) extending perpendicular to the feed direction (X), preferably perpendicular to the workpiece transport plane (53) of the workpiece (W1, W2).