Self-Aligning Chamfering Tool for Uniform Hole Edge Machining
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Solution Overview
Problem
Conventional chamfering tools require precise alignment to maintain uniform chamfered width, which is challenging due to variations in the position of tilting holes on workpieces, leading to uneven chamfering.
Innovation Solution
A chamfering tool and rotary tool design featuring a universal joint, spring members, and abutting surfaces that automatically align the chamfering member with the hole center, ensuring consistent chamfering width without requiring precise alignment, and can be integrated with robot arms or NC controllers for automated machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If precise alignment operation is performed to maintain uniform chamfered width, then chamfering precision is improved, but operation complexity and time consumption increase
Solution Approach 1:
The chamfering tool automatically aligns itself with the hole center through the universal joint mechanism. When the tool contacts the hole edge, the universal joint allows the shaft to rotate and self-align, positioning the chamfering member's axial center at the hole center without requiring manual alignment operations. This self-aligning feature eliminates the need for precise alignment operations while maintaining uniform chamfered width.
Solution Approach 2:
The invention changes the degree of freedom parameter by introducing a universal joint that allows rotational movement. This enables the tool to adapt its orientation automatically based on the hole position, transforming from a fixed alignment requirement to a flexible self-adjusting system that maintains precision without complex alignment operations.
2Ease of operation
If the axial line of the holder is misaligned from the center of the tilting hole, then operation is simplified, but chamfered width becomes uneven
Solution Approach 1:
The universal joint mechanism enables the tool to self-correct any initial misalignment. When the holder's axial line is not initially aligned with the hole center, the universal joint allows the shaft to rotate during operation, automatically positioning the chamfering member correctly at the hole center. This eliminates the need for precise pre-alignment while ensuring uniform chamfered width.
Solution Approach 2:
The invention introduces dynamic adaptability through the universal joint, which allows the tool to adjust its orientation in real-time during operation. Instead of requiring static precise alignment before operation, the system dynamically compensates for misalignment through rotational movement, maintaining precision throughout the chamfering process.
3Device complexity
If a rigid connection is used between the shaft and chamfering member, then structural simplicity is improved, but adaptability to position variations deteriorates
Solution Approach 1:
The universal joint acts as an intermediary mechanism between the shaft and chamfering member. It provides the necessary flexibility to accommodate position variations while maintaining a relatively simple overall structure. The universal joint mediates between the rigid shaft and the chamfering member, allowing rotational adjustment without requiring complex active control systems or multiple adjustable components.
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
Enables uniform chamfering and machining with reduced tool size and improved precision, allowing for automated operation and easy rotational driving, even with unevenly positioned holes.
Implementation Method 1
a first spring member inserted in the sleeve so as to energize the one end portion of the shaft member
Implementation Method 2
a second spring member, one end portion of the second spring member being configured to energize the movable flange
Data Source
AI summary
A chamfering tool 10 includes: a movable flange 5 having a cylindrical shape so that one end portion of a joint member 4 is inserted in the movable flange 5; a second spring member 6 configured to energize the movable flange 5 by one end portion of the second spring member 6; a spring receiver 7 to which the other end portion of the second spring member 6 abuts; a fixed flange 8 fixed to the other end portion of the joint member 4; and a chamfering member 9 fixed to the other end portion of the joint member 4, wherein the fixed flange 8 and the movable flange 5 have abutting surfaces formed by a flat surface, and an axial center of the chamfering member 9 substantially coincides with an axial center of the shaft member 2 when the abutting surfaces abut on each other.