Double Tool With Spring Retainer for Chamfering and Burr Removal
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Solution Overview
Problem
Current machining methods for geared workpieces, such as gears, require additional steps to remove burrs created during chamfering processes, leading to increased manufacturing complexity and cost due to the need for separate tools and re-clamping.
Innovation Solution
A machining system with a double tool that includes a first machining zone for skiving chamfering and a second machining zone for filing, integrated with a spring holder allowing for displacement along the tool axis, enabling both processes to be performed in a single setting without re-clamping, using a spring element to maintain consistent force application regardless of workpiece thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a separate filing tool is used to remove burrs after chamfering, then burr removal quality is improved, but device complexity and manufacturing cost increase due to requiring additional tools and re-clamping
Solution Approach 1:
The patent combines the chamfering tool and filing tool into a single integrated tool body. The tool includes a chamfering zone with cutting edges for creating chamfers and a filing zone with filing edges for removing burrs. Both zones are positioned on the same tool body, allowing sequential chamfering and burr removal in one clamping operation, thereby reducing device complexity while maintaining manufacturing precision
Solution Approach 2:
The tool body is designed with multi-functionality, serving both as a chamfering tool and a filing tool. The same tool body includes different zones (chamfering zone and filing zone) that perform different functions sequentially on the workpiece, eliminating the need for separate tools and reducing the number of clamping operations required
2Manufacturing precision
If a rigid tool mounting is used for chamfering, then machining precision is improved, but adaptability to workpiece thickness variations deteriorates
Solution Approach 1:
The patent introduces a spring element that enables the tool body to move dynamically along the tool axis. The spring element allows the filing zone to automatically adjust its position based on workpiece thickness variations, providing adaptability while maintaining machining precision through controlled elastic deformation
3Stability of the object's composition
If the tool is fixed in position for chamfering, then process stability is improved, but ability to accommodate thickness variations deteriorates
Solution Approach 1:
The spring element transforms the fixed tool mounting into a dynamic system. The tool body can move along the tool axis within spring limits, allowing automatic adaptation to thickness variations while maintaining process stability through the restoring force of the spring element
Solution Approach 2:
The patent changes the positional parameter of the tool body along the tool axis based on workpiece thickness. The spring element enables this parameter change by allowing controlled displacement, thereby accommodating thickness variations while maintaining stable machining conditions
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 method allows for efficient and cost-effective machining of geared workpieces by integrating skiving chamfering and filing in a single operation, reducing manufacturing time and complexity while ensuring precise and consistent force application, thus eliminating the need for additional tools and re-clamping.
Implementation Method 1
the receiving body being pretensioned against the main stop by a spring element of the spring holder and against the spring force of the spring element can be lifted off the main stop counter to the main direction
Data Source
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AI summary
The invention relates to a machining system (12), comprising a rotatable tool (14), which has a first machining zone (38), which is oriented on the tool in such a way that a first process force of the first machining type acting on the tool has a first component (76), which acts parallel to a tool axis (44) in a main direction (50), said machining system being characterized in that the tool is a double tool having a second machining zone (42), which is oriented on the tool in such a way that a second process force of the second machining type acting on the tool has a second component (78), which acts parallel to the tool axis against the main direction, that the machining system also comprises a spring retainer (16), which has a main body (18) and a holding body (20), that the tool is fastened to the holding body of the spring retainer, that the main body and the holding body can be slid relative to each other along the tool axis, a main stop (62) on the main body limiting sliding of the holding body relative to the main body in the main direction, and that the holding body is preloaded against the main stop (62) by a spring element (58) of the spring retainer and can be lifted off from the main stop against the main direction against the spring force of the spring element. This enables simple and economical machining of workpieces by means of two different machining types.