Machine Tool Dual Spindle Rear-Side Machining
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Solution Overview
Problem
Machine tools face limitations in efficiently machining both the front and rear sides of a workpiece with a compact and cost-effective design, as existing solutions do not fully utilize existing movement axes for rear-side machining.
Innovation Solution
Incorporating a second spindle on a carrier that moves along the Z-axis and transverse directions, allowing it to align with the first spindle for workpiece transfer and processing, and arranging further processing units in a spatial area opposite the first carrier to enable independent rear-side machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a second carrier with second machining units is provided for rear-side machining, then machining versatility is improved, but device complexity increases
Solution Approach 1:
The second carrier is designed to perform multiple functions: it carries both second machining units for rear-side machining and a second spindle for workpiece transfer and positioning. This multi-functionality allows the system to achieve comprehensive machining capabilities while avoiding the need for completely separate dedicated components for each function, thereby improving versatility without proportionally increasing device complexity
2Adaptability or versatility
If the second carrier is positioned to allow rear-side machining, then machining capability is improved, but collision risk with first carrier increases
Solution Approach 1:
The second carrier is positioned in a spatial region that is laterally offset from the first carrier's movement path. By utilizing this lateral dimension, the system enables rear-side machining operations without the second carrier interfering with the first carrier's operations, thus eliminating collision risk while maintaining full machining capability
Solution Approach 2:
The control system acts as an intermediary that coordinates the movements and positions of both carriers. It ensures that when the second carrier is in position for rear-side machining, the first carrier is positioned in a safe zone, and vice versa, thereby preventing collisions through intelligent coordination rather than physical separation alone
3Ease of manufacture
If existing movement axes are utilized for second spindle positioning, then cost-effectiveness is improved, but positioning precision for rear machining may be compromised
Solution Approach 1:
The system dynamically adjusts the positioning strategy based on the operational context. When the second carrier is in the rear-side machining position, the control system activates precise positioning control for the second spindle using the existing movement axes. During transfer operations, less precise positioning is acceptable. This dynamic adaptation allows cost-effective use of existing axes while maintaining required precision when needed
Data Source
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AI summary
The invention relates to a machine tool comprising a first spindle for accommodating a workpiece and a first support, which can be displaced along an X axis, for machining units which can be displaced along a Z axis relative to each other, a second support, which can be displaced along an X axis, and which can displace the machining unit in a transverse direction into and out of a functional position associated with the first spindle, said transverse direction extending at a right angle to the X axis and at a right angle to the Z axis, and an additional support for machining units. The aim of the invention is to improve said machine tool in such a manner that it offers optimum possibilities for machining a front of a workpiece and a back of a workpiece. The machine tool according to the invention is characterized in that the second support carries a second spindle, that the second spindle can be displaced in the direction of the Z axis and the traverse direction between a workpiece transfer position and at least one workpiece machining position by displacing the second support, and that the additional machining units are arranged in a spatial region in which a back of a workpiece can be machined by the second spindle which is in the workpiece machining position.