Rotatable Table Machine Tool Rigidity
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Solution Overview
Problem
Existing machine tools lack rigidity, which is essential for maintaining accurate positions during mechanical operations, and this issue is exacerbated by limited installation space, where larger machines are not feasible, leading to inefficient kinematic chains that do not fully resolve the problem of rigidity and accuracy.
Innovation Solution
The machine tool design incorporates a compact main body with a mobile table and integral support elements, including a base and head, which house the operational groups and moving mechanisms, minimizing the distance between parts and operational units, and utilizing a kinematic chain with satellites and a toothed crown for precise movement, achieving pronounced rigidity and dynamic stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the machine tool uses a compact design with integrated support elements, then the installation space is reduced, but the rigidity may be compromised
Solution Approach 1:
The patent combines the base and head support elements into a single integrated main body structure, merging previously separate components to reduce installation space while maintaining structural rigidity through the unified design
Solution Approach 2:
The support elements are arranged in a radial configuration around the central mobile table, utilizing three-dimensional spatial distribution to achieve compact footprint while preserving structural strength through optimized geometric arrangement
2Manufacturing precision
If the machine tool uses kinematic chains for efficient movement, then the movement accuracy is improved, but the rigidity of the apparatus is reduced
Solution Approach 1:
The machine tool is divided into a stationary main body and a mobile table that can be independently positioned, allowing the kinematic chain to operate only where movement is needed while the main body remains rigid and stationary
Solution Approach 2:
A radial kinematic chain acts as an intermediary mechanism between the stationary main body and the mobile table, enabling precise movement transmission while isolating the rigidity requirements to the stationary structure
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
This design achieves high rigidity and dynamic stability, reducing heat deviation influence and allowing for accurate, rapid movement between machining stations, with the ability to perform multiple operations simultaneously while maintaining compact dimensions.
Implementation Method 1
utilizing a kinematic chain with satellites and a toothed crown for precise movement
Implementation Method 2
The machine tool itself which is suitable for moving the parts to be machined from one station to another
Data Source
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AI summary
A machine tool (2) comprising at least one operational group (300) and a main body (10) which supports and moves the parts on which to perform the operations. The main body (10) comprises: - at least one mobile table (11) which supports the parts; - at least one fixed portion (12) which supports at least one operational group (300); - means of moving the mobile table (11) comprising a rotation shaft (15), positioned along the main axis in a central cavity. The means for moving the mobile table (11) move it rotationally and further comprise a toothed crown (18) and at least one satellite (17) positioned between the mobile table (11) and the rotation shaft (15).