Cutting Device Drive Relocation for Stable Workpiece Support
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Solution Overview
Problem
Existing separating devices for workpieces like pipes often experience lateral forces during cutting, leading to incomplete or unclean cuts due to the placement of the drive mechanism next to the cutting wheel, which can cause the workpiece to be pushed away from the support.
Innovation Solution
The drive mechanism is relocated above the cutting wheel, stabilizing the meshing conditions and ensuring a clean separating cut by positioning the cutting wheel such that the contact area lies in the longitudinal plane of symmetry of the support, preventing lateral forces from acting on the workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the drive mechanism is placed next to the cutting wheel, then the drive connection is simple, but lateral forces act on the workpiece causing it to be pushed away from the support
Solution Approach 1:
The drive mechanism is relocated from a lateral position (next to the cutting wheel) to an axial position (above the cutting wheel), changing the spatial dimension of the drive connection. This dimensional change allows the drive forces to be applied in the cutting direction rather than laterally, eliminating the harmful lateral forces that push the workpiece away from the support while maintaining a simple direct drive connection to the cutting wheel
2Device complexity
If the drive mechanism is placed next to the cutting wheel, then the device structure is compact, but the meshing conditions are unstable leading to unclean cuts
Solution Approach 1:
By moving the drive mechanism from a lateral to an axial position above the cutting wheel, the patent achieves stable meshing conditions for the drive gears while maintaining device compactness. The axial placement allows for better gear engagement and force transmission directly along the cutting path, resulting in cleaner cuts without sacrificing the compact structure of the device
3Reliability
If the cutting wheel is positioned to eliminate lateral forces, then the workpiece is firmly pressed against the support, but the drive connection becomes more complex
Solution Approach 1:
The patent resolves this contradiction by positioning the drive mechanism axially above the cutting wheel rather than laterally beside it. This dimensional repositioning allows the drive forces to be transmitted directly in the cutting direction, firmly pressing the workpiece against the support through the cutting wheel while maintaining a simple and direct drive connection, thus achieving both workpiece stability and manufacturing simplicity
Data Source
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AI summary
Cutting device has drive (18) which is arranged in the area above the cutting wheel (16). The axle (19) of the drive makes an angle with the axle (43) of the cutting wheel. The cutting wheel is movable by means of a straight-line guidance.