Modular Pressing Device for High-Pressure Tool Assembly
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Solution Overview
Problem
Existing pressing devices for high-pressure axial displacement of tool parts are complex and expensive to produce, particularly for tool receptacles with little conicity, making them impractical for high-speed machines.
Innovation Solution
A pressing device featuring a housing with two half-shells formed from three coaxial annular parts, with engaging edges and ribs that assemble into a cylindrical shape, allowing for easier construction and adaptability to different tool sizes by using interchangeable inserts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inserts with rams are used for high-pressure axial displacement of tool parts, then the pressing function is achieved, but the device becomes complicated and expensive to produce
Solution Approach 1:
The insert is divided into three separate coaxial annular parts (first part with outer engaging edges, second part with intermediate engaging edges, third part with inner engaging edges) that can be assembled together. This segmentation simplifies the manufacturing of each individual part while maintaining the complete pressing function through their coordinated arrangement.
Solution Approach 2:
The press plate is designed with a universal structure that can accommodate different tool sizes through the interchangeable insert assembly. The annular parts with different engaging edges can be configured to work with various tool receptacles, making the pressing device adaptable to multiple applications without requiring completely different inserts for each tool size.
2Reliability
If complete pressing devices are designed for each different tool size, then the pressing function is optimized for specific tools, but the device complexity and cost increase
Solution Approach 1:
A single press plate design can accommodate different tool sizes by using interchangeable insert assemblies. The modular insert structure with three coaxial annular parts allows configuration variations to match different tool receptacle dimensions and requirements, providing versatility without sacrificing pressing effectiveness for any specific tool size.
Solution Approach 2:
The insert assembly can be dynamically reconfigured by assembling or disassembling the three coaxial annular parts to create different engaging edge configurations. This dynamic adaptability allows the same press plate to be optimized for different tool sizes by changing the insert arrangement rather than requiring completely different pressing devices.
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
The solution simplifies the construction and reduces costs of pressing devices, enabling efficient high-pressure axial displacement of tool parts while maintaining adaptability to various tool sizes, thus addressing the complexity and expense issues of previous designs.
Implementation Method 1
a number of pressure cylinders arranged in an annular manner at equal angular spacings and intended for axial displacement of the press plate
Implementation Method 2
High pressure is required because the friction of a tight fit has to be overcome
Data Source
AI summary
Pressing device for relative axial displacement of two parts arranged coaxially with one another and displaceable towards one another only by means of high pressure, such as, for example, collet chucks or clamping sleeves, into corresponding bores of tool or collet chuck holders. The device has an outer housing which coaxially encompasses the parts to be pressed and is hinged along an axial plane. Insert halves which in each case comprise two fixed plates having engaging edges for engaging one of the parts to be pressed and an axially moveable press plate having an engaging edge for engaging the second part to be pressed can be inserted into the housing.