Grinding Wheel Dressing Tool Swivel for Variable Pressure Angles
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Solution Overview
Problem
Existing dressing devices struggle to efficiently dress screw-shaped grinding wheels with complex pressure angle changes along the tooth trace direction, particularly when addressing two adjacent grinding surfaces simultaneously, which results in increased time and effort.
Innovation Solution
A dressing device with a disk-shaped dressing tool and a tool swivel assembly, controlled by a controller, allows for simultaneous dressing of two grinding surfaces by rotating the grinding wheel and dressing tool, while adjusting the angle of the dressing surfaces relative to the grinding surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a dressing tool is separately applied to the grinding surface on the first side and the grinding surface on the second side in the groove width direction of the thread of grinding wheel, then dressing can be performed on each grinding surface, but the dressing takes time and effort, reducing work efficiency
Solution Approach 1:
The invention merges two separate dressing operations into one simultaneous operation by providing a single dressing tool with a distal end that includes a pair of dressing surfaces capable of dressing both grinding surfaces adjacent in the groove width direction at the same time. This combining of functions eliminates the need for separate dressing operations, thereby improving work efficiency while maintaining dressing precision.
2Productivity
If dressing is performed on two grinding surfaces adjacent in groove width direction simultaneously, then work efficiency is improved, but it is difficult to change the pressure angle with respect to both grinding surfaces when the thread shape is complicated
Solution Approach 1:
The invention employs a tool swivel assembly that enables the dressing tool to be turned around a tool turning axis orthogonal to the tool rotation axis. This dynamic adjustment mechanism allows the angle of the pair of dressing surfaces with respect to the two grinding surfaces to be changed during the dressing operation, providing adaptability for complicated thread shapes while maintaining simultaneous dressing capability for improved efficiency.
3Manufacturing precision
If the pressure angle changes in the tooth trace direction, then the tooth surface twist can be adjusted, but the thread of grinding wheel requires complex shape that is difficult to dress
Solution Approach 1:
The tool swivel assembly provides dynamic angle adjustment capability that enables the dressing of complex thread shapes with varying pressure angles in the tooth trace direction. By allowing the dressing tool angle to be changed during operation, the system can accommodate and dress complicated thread geometries required for controlling tooth surface twist, thereby resolving the contradiction between precision control and dressing difficulty.
Data Source
AI summary
A dressing device includes a dressing portion capable of dressing a thread of grinding wheel with respect to a grinding wheel including the spirally continuous thread of grinding wheel, and a controller configured or programmed to control an operation of the dressing portion. The controller is configured or programmed to rotate the grinding wheel around the grinding wheel rotation axis and rotate the dressing tool around the tool rotation axis to dress the two grinding surfaces adjacent in the groove width direction with the pair of dressing surfaces, and turn the dressing tool around the tool turning axis by the tool swivel assembly to change an angle of the pair of dressing surfaces with respect to the two grinding surfaces.