Beveloid Gear Honing Using Eccentric Tool and Workpiece Axes
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Solution Overview
Problem
Conventional honing processes for beveloid gears with small shaft angles are complex and inefficient due to collisions between the honing tool and the conical root circle diameter mantle, limiting effective machining.
Innovation Solution
The method involves spacing the tool and workpiece axes apart with an eccentricity and an axis cross angle, allowing continuous contact between the honing tool and beveloid toothing through a cylindrical honing tool design, which prevents collisions and enables efficient machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional honing processes are applied to beveloid toothing, then the honing tool can process standard gear forms, but the tool collides with the conical root circle diameter mantle and cannot make area contact with the tooth flanks
Solution Approach 1:
Instead of adapting the honing tool to follow the conical root circle diameter mantle, the invention inverts the approach by making the tool axis and workpiece axis non-coincident, allowing the cylindrical honing tool to maintain its standard form while achieving proper contact through eccentric positioning
Solution Approach 2:
The invention introduces a new dimensional relationship by spacing the tool axis and workpiece axis apart with eccentricity, transforming the traditional coaxial arrangement into an eccentric configuration that enables area contact between the honing tool and tooth flanks without collision
2Object-affected harmful factors
If the honing tool has a conical shape to match the conical root circle diameter mantle, then the tool can avoid collision, but the tool can only move along the tool axis or the gear along the workpiece axis to a limited extent during honing
Solution Approach 1:
The invention changes the geometric parameters of the honing tool from conical to cylindrical, and simultaneously changes the positional parameters by introducing eccentricity between the tool axis and workpiece axis, thereby achieving both collision avoidance and extended movement capability
Solution Approach 2:
The cylindrical honing tool applies local quality by concentrating the honing action on the tooth flanks through eccentric positioning, allowing effective honing in the contact area while avoiding the conical root circle diameter mantle region
3Device complexity
If the tool axis and workpiece axis are coincident as in conventional honing, then the machining process is simple, but continuous contact between the honing tool and tooth flanks cannot be achieved
Solution Approach 1:
The invention transitions from a one-dimensional coaxial arrangement to a two-dimensional eccentric arrangement, where the tool axis and workpiece axis are spaced apart, enabling continuous area contact between the cylindrical honing tool and the tooth flanks
Data Source
AI summary
A method for honing a gear with a beveloid toothing, including the following steps; providing an at least in sections cylindrical honing tool and a gear to be honed, wherein the honing tool has a tool axis and a toothing, and wherein the gear has a workpiece axis and a beveloid toothing, honing the gear by means of the honing tool, wherein the honing tool and the gear are arranged with an axis cross angle to one another, wherein the honing tool and the gear are spaced apart from one another by a center distance at least in sections, and wherein the toothing of the honing tool and the beveloid toothing of the gear contact each other at least temporarily in at least one contact section. In order to simplify effective honing of beveloid toothing, it is proposed that the tool axis and the workpiece axis are spaced apart with an eccentricity at least in sections.