Turntable Profile Clamping With RPS for Repeatable Machining
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Solution Overview
Problem
Conventional machining centers experience imprecise and non-repeatable positioning of workpieces, leading to inaccuracies in machining operations due to variations in the positioning of identical parts and worked profiles, which affects stability and loading/unloading efficiency.
Innovation Solution
A machining center with a turntable and anthropomorphic robot that uses a Reference Positioning System (RPS) with fixed and mobile mechanical components to consistently position profiles to be worked or already worked on multiple stepped positions, ensuring precise alignment and access for machining across a three-dimensional Cartesian reference system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional mounting systems are used, then the structure is simple and cost-effective, but the positioning precision and repeatability deteriorate
Solution Approach 1:
The mounting system is divided into separate functional modules: fixed RPS reference points mounted on the turntable, mobile mechanical components that can be positioned and locked, and leveling-off mechanisms. This segmentation allows each component to perform its specific function with high precision while keeping the overall system manageable and not excessively complex.
Solution Approach 2:
Fixed RPS (Reference Positioning System) points are introduced as intermediary reference elements between the turntable and the workpiece. These reference points serve as precise intermediaries that enable accurate positioning and repeatability without requiring the entire mounting system to be overly complex.
2Productivity
If multiple stepped positions are used on the turntable, then productivity increases, but positioning consistency deteriorates
Solution Approach 1:
The fixed RPS reference points are designed to be universal across all stepped positions on the turntable. Each position uses the same reference point configuration, ensuring that positioning consistency is maintained regardless of which stepped position is being used. This multi-functionality allows the same reference system to serve all machining positions uniformly.
Solution Approach 2:
The system incorporates feedback mechanisms through the mobile mechanical components that can detect and adjust their position relative to the fixed RPS reference points. This feedback ensures that even when moving between different stepped positions, the positioning consistency is maintained by continuously referencing the fixed RPS points.
3Ease of manufacture
If fixed dimensions baskets are used, then structure is simplified, but storage capacity optimization deteriorates
Solution Approach 1:
The mounting system incorporates mobile mechanical components that can dynamically adjust their positions to accommodate different workpiece sizes and shapes. This dynamic capability allows the baskets to optimize their storage capacity for various profiles while maintaining a relatively simple fixed-dimensional structure, as the adaptability comes from the adjustable mounting components rather than complex basket redesign.
Data Source
AI summary
A machining center equipped with a device for mounting on a clamp parts to be worked or which have been worked, such as profiles, which has a supporting frame for supporting a turntable with two or more stepped positions or placements or workstations, an loading basket and an unloading basket.The machining center comprises a robot configured to remove or to associate, with each one of said two or more stepped positions or placements or workstations, the parts or the profiles to be worked and which have been worked at a plurality of fixed RPS or reference points and mobile mechanical components, according to a single positioning that is adapted to allow access by machining devices to any zone in the space of the profiles to be worked by modifying only the condition that the two or more stepped positions or placements or workstations are in.