Additive Expansion Clamping Element With Joined Base Body
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Solution Overview
Problem
Existing expansion clamping devices have inefficient machine utilization due to the generative production process requiring a significantly slimmer front section, limiting the use of conventionally manufactured rear sections.
Innovation Solution
A method where a clamping element is manufactured using generative manufacturing processes like selective laser melting and connected to a base body via cohesive joint connections, such as soldering or welding, allowing for separate production and efficient assembly, with the clamping element designed to have a stepped rear end section for optimal alignment and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the front section is produced additively with complex geometry, then manufacturing flexibility and design freedom are improved, but the section becomes significantly slimmer limiting machine utilization
Solution Approach 1:
The expansion clamping device is divided into two separately manufactured sections: a front section (clamping element) produced by additive manufacturing and a rear section produced by conventional manufacturing. These sections are then joined together through material-to-material joining connections, allowing each section to be optimized independently for its specific manufacturing process while maintaining overall structural integrity and functionality.
2Ease of manufacture
If the front section is made slimmer to accommodate additive manufacturing constraints, then additive manufacturing feasibility is improved, but the number of reusable rear sections decreases
Solution Approach 1:
By segmenting the device into front and rear sections manufactured by different processes, the front section can be designed with the geometry required for additive manufacturing while the rear section maintains its conventional manufacturing characteristics, allowing both sections to be produced efficiently with optimal machine utilization.
Solution Approach 2:
The rear section is pre-manufactured by conventional methods before being joined to the additively manufactured front section. This preliminary action allows the rear section to be produced with optimal dimensions and geometry for conventional manufacturing, ensuring high machine utilization and reusability while the front section is subsequently added to complete the device.
3Adaptability or versatility
If separate production of front and rear sections is implemented, then manufacturing flexibility is improved, but assembly complexity increases
Solution Approach 1:
The front section and rear section are joined together through material-to-material joining connections that create a unified, integrated structure. This merging process combines the advantages of both manufacturing methods while producing a device that functions as a single cohesive unit, minimizing assembly complexity despite the separate production processes.
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 approach enables efficient production of expansion clamping devices with complex geometries, optimizing machine utilization by allowing independent production of the clamping element and base body, and providing high tilting rigidity and sealing effects through the joint connections.
Implementation Method 1
at least one soldered connection
Implementation Method 2
at least one welded connection
Implementation Method 3
adhesive connection
Implementation Method 4
thin wall is formed between the pressure chamber and the clamping surface, which can be elastically deformed inwardly or outwardly by increasing the pressure in the pressure chamber
Data Source
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AI summary
The present invention relates to an expansion clamping device (1) for fixing a component, in particular a workpiece or a tool, comprising a base body (2) defining a longitudinal axis (X) and a clamping element (5) which has a receptacle with an inwardly facing or an outwardly facing clamping surface (16) for force-fit clamping of the component, wherein the clamping element (5) is manufactured by means of an additive manufacturing process, in particular by means of selective laser melting, and is connected to the base body (2) by at least one material-bonded joining connection, in particular by at least one soldered joint (6, 7), preferably by at least one high-temperature soldered joint, or by at least one welded joint, in particular by at least one friction welded joint, or by at least one adhesive bond, wherein, preferably,the clamping element (5) is connected to the base body (2) by two axially offset joint connections and the two joint connections are formed on two adjacent steps in the rear end section.