Gear Wheel Chamfer Skiving With Crossed-Axis Tooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for producing toothed work wheels with chamfers between the tooth base and end face are inefficient, as they require multiple tools and complex adjustments, and do not effectively manage the chamfer angle and profile.
Innovation Solution
A method using a gear cutting tool and a chamfering tool, both in the form of peeling wheels, where the gear cutting tool produces the toothing with a first axis cross angle and the chamfering tool produces the chamfer with a second axis cross angle, allowing for synchronized rotary movement and feed adjustments to achieve the desired chamfer angle between 15° and 45°.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple tools and complex adjustments are used to produce chamfers on toothed work wheels, then the chamfer production capability is improved, but the device complexity and manufacturing time increase
Solution Approach 1:
The patent combines the toothing tool and chamfering tool into a single integrated tool unit that can perform both functions. The tool unit includes a toothing tool for generating gear teeth and a chamfering tool with cutting edges positioned to form chamfers on the tooth bases, eliminating the need for separate tools and complex adjustments between multiple devices.
Solution Approach 2:
The integrated tool unit serves multiple functions: it can generate the toothing on the work wheel and simultaneously or sequentially produce the chamfers on the tooth bases. The tool unit can be adjusted between toothing operation and chamfering operation, making it a universal tool that replaces multiple specialized tools.
2Manufacturing precision
If multiple tools are used for producing toothing and chamfers, then the functional capability is improved, but the productivity decreases due to complex adjustments
Solution Approach 1:
The chamfering tool is pre-positioned on the integrated tool unit with its cutting edges arranged to form chamfers at the correct angles (15°-45°) relative to the tooth base. The tool unit includes adjustment mechanisms that are pre-configured for chamfering operations, so when switching from toothing to chamfering, minimal adjustments are needed, maintaining high productivity while ensuring accurate chamfer angles.
3Productivity
If a single integrated tool unit is used, then the productivity is improved by reducing adjustments, but the device complexity increases
Solution Approach 1:
The integrated tool unit is segmented into distinct functional components: a toothing tool portion for generating gear teeth and a chamfering tool portion with cutting edges for forming chamfers. This segmentation allows each component to be independently designed and adjusted for its specific function, reducing the overall complexity management while maintaining the benefits of integration.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a method for producing a toothed workpiece wheel (7), the tooth root (11") of which adjoins an end face (12) of the workpiece wheel (7) with a chamfer (13) extending into the tooth flanks (11, 11") being formed, wherein the toothing of the workpiece wheel (7) is created by skiving with a gear-cutting tool (1) which has a first number (N) of cutting teeth (3) that each form cutting edges (4) and the rotation axis (2) of which is at a first crossed-axes angle (α) to the axis of rotation (8) of the workpiece wheel (7), with an infeed in a first infeed direction (V) parallel to the direction of extension of the tooth flanks (11, 11") to be produced and of the tooth root (11"). The chamfer (13) is created by skiving with a chamfering tool (14) which has a second number (N2) of cutting teeth (16) that each form cutting edges (17, 17', 17") and the rotation axis of which (15) is at a second crossed-axes angle (α2) to the axis (8) of the workpiece wheel (7), with an infeed in a second infeed direction (V2) parallel to the direction of extension of the chamfer (13) to be produced in the tooth root (11"). The invention also relates to an associated tool set. Main figure: