Power Skiving Cutter Repositioning for Independent Pressure Angle Correction
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Solution Overview
Problem
Existing power skiving methods for manufacturing gears struggle with independently correcting pressure angles on gear tooth flank surfaces, often requiring new cutter disks for significant changes, which is inefficient and costly.
Innovation Solution
A method involving three-dimensional cutter rotations relative to the workpiece tooth flank surfaces to reposition the cutter, allowing for independent pressure angle corrections on both left and right flank surfaces of gear teeth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the pressure angle of the cutter is significantly changed, then the pressure angle correction is achieved, but a new cutter disk must be manufactured
Solution Approach 1:
The invention makes the cutter disk dynamic by allowing rotation around its axis during the power skiving process. This dynamic adjustment enables the effective pressure angle to be changed without manufacturing a new cutter disk, resolving the contradiction between achieving pressure angle correction and avoiding new cutter manufacturing
Solution Approach 2:
The invention changes the operational parameter of the cutter by rotating it around its axis during machining. This parameter change (rotation angle) directly affects the effective pressure angle applied to the workpiece, allowing pressure angle correction through operational adjustment rather than manufacturing change
2Manufacturing precision
If independent pressure angle corrections are made on left and right flanks, then precise gear manufacturing is achieved, but complex three-dimensional cutter rotations are required
Solution Approach 1:
The invention employs dynamic three-dimensional cutter rotations around its axis during the power skiving process to achieve independent pressure angle corrections on left and right flanks. The dynamic rotation capability allows precise control of the effective pressure angle on each flank surface
Solution Approach 2:
The invention uses parameter changes through rotation angles around the cutter axis to independently control the pressure angle on left and right flanks. By adjusting the rotation parameter, independent pressure angle corrections are achieved on both flank surfaces
Data Source
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AI summary
A power skiving method wherein three-dimensional cutter rotations relative to gear workpiece tooth flank surfaces are carried out so as to reposition the cutter relative to a gear workpiece so as to achieve a decrease and/or an increase in the pressure angle of the tooth flank surfaces. The method can be applied independently to left and right flank surfaces of a tooth slot or the rotations may be superimposed on one another to realize pressure angle corrections on both tooth flanks of a tooth slot.