Five-Axis Machining Layout Using Rotational Tool Delivery
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Solution Overview
Problem
Existing machining devices require large installation spaces and complex control systems due to the combination of translational and rotational movements, which complicates the precise and efficient machining of workpieces.
Innovation Solution
A machining device with five controllable processing axes, comprising four axes of rotation and one translation axis, where translational movements are replaced by superimposed rotational movements, minimizing the paths of large masses and reducing the overall space requirement by arranging axes successively without intermediate steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If translational movements are used to deliver the tool to the workpiece, then the machining device can achieve precise positioning, but the device requires large installation space and has complex control technology
Solution Approach 1:
The patent replaces the conventional translational mechanical movement system with a rotational movement system. Instead of moving the tool holder along linear axes to deliver the tool to the workpiece, the invention uses rotational movements of the workpiece holder and tool holder around vertical and horizontal axes. This substitution of mechanical movement types reduces the installation space required while maintaining positioning precision through coordinated rotational motions.
Solution Approach 2:
The patent introduces rotational dimensions (angular movements) to replace translational dimensions (linear movements). By using rotations around vertical and horizontal axes, the system achieves the same positioning capability in a more compact configuration. The dimensional transformation from linear to angular space allows the machining device to fit in a smaller footprint while maintaining the ability to deliver the tool to any required position on the workpiece.
2Ease of operation
If translational movements are combined with rotational movements, then the tool can be delivered to the workpiece, but the control technology becomes complicated
Solution Approach 1:
The patent segments the movement system into distinct rotational components: rotation of the workpiece holder around a vertical axis, rotation of the tool holder around a horizontal axis, and independent rotational adjustments. By dividing the complex translational-rotational movement into separate rotational segments, the control system can manage each axis independently, simplifying the overall control architecture compared to coordinating multiple translational and rotational movements simultaneously.
Solution Approach 2:
Instead of the conventional approach where the tool moves to the workpiece along linear axes, the patent inverts the approach by rotating the workpiece and tool holders to achieve the same relative positioning. This inversion of the movement paradigm simplifies control by using purely rotational movements, which can be more easily controlled and coordinated than combined translational-rotational movements.
3Productivity
If large masses are moved over long distances, then the machining process can be performed, but the device requires more installation space
Solution Approach 1:
The patent replaces long-distance translational movements of large masses with short-distance rotational movements. The workpiece holder and tool holder rotate around vertical and horizontal axes respectively, allowing the machining process to be performed without moving large components over long linear distances. This substitution maintains machining capability while significantly reducing the installation space required.
Solution Approach 2:
The patent transforms the movement from linear dimension to angular dimension. Instead of translating components along long linear paths, the system uses rotational movements around vertical and horizontal axes. This dimensional change allows the same machining operations to be performed in a compact configuration, reducing the footprint of the device while maintaining productivity.
Data Source
Figure 1
AI summary
The invention relates to a machining device (1) for machining workpieces (30), having at least one first device part (10) and at least one second device part (20) arranged separately from the at least one first device part, wherein the machining device comprises controllable machining axes, in particular only five controllable machining axes, namely four axes of rotation (A1, A2, D1, D2) and one axis of translation (T), wherein: the first device part (10) has a workpiece holder and the second device part (20) has a tool holder (40), the first device part (10) and the second device part (20) each have a first axis of rotation (A1; A2), about which the device part (10, 20) in question can be rotated, the tool holder (40) and the workpiece holder can each be rotated relative to the device part (10; 20) in question about a second axis of rotation (D1; D2), and the tool holder (40) can be slid relative to the second device part (20). The first and second axes of rotation (A1, D1) of the first device part (10) and the first and second axes of rotation (A2, D2, T) and the axis of translation (T) of the second device part (20) are arranged consecutively without the interposition of an additional machining axis. At least one direction component of the first axis of rotation (A2) of the second device part (20) runs in a vertical direction (Z) defined perpendicular to the placement base of the machining device, and one direction component of the first axis of rotation (A1) of the first device part (10) runs in the horizontal direction (X) of the machining device and askew to the first axis of rotation (A1).