Form Dressing Roller Segmented Cover Ring Wear Reduction
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Solution Overview
Problem
Existing form dressing rollers fail to maintain high profile accuracy and actual surface roughness on grinding wheels due to excessive wear, leading to unsatisfactory grinding performance and increased maintenance needs.
Innovation Solution
A path-controlled form dressing roller with a freestanding cover ring featuring diamond grains in ceramic, metallic, or resin bond, secured by clamping screws, and incorporating recesses to reduce pressure and enhance diamond penetration, allowing for longer service life and improved grinding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a diamond form dressing roller is used to dress grinding wheels, then profile accuracy and surface roughness are improved, but the dressing roller experiences high wear and requires frequent re-grinding or replacement
Solution Approach 1:
The cover ring is divided into multiple segments that can be independently replaced. When wear occurs, only the affected segment needs to be replaced rather than the entire cover ring, thereby extending the overall service life while maintaining profile accuracy.
Solution Approach 2:
The invention changes the material parameter of the cover ring by using a material with wear resistance significantly higher than diamond, such as a ceramic composite or superhard material. This parameter change allows the cover ring to withstand prolonged dressing operations without excessive wear, extending the service life while maintaining manufacturing precision.
2Manufacturing precision
If the form dressing roller is ground to create convex radii for small corner radii, then very small concave radii can be incorporated into the grinding wheel, but the wear on the form dressing roller increases significantly
Solution Approach 1:
The cover ring is made from a composite material combining extreme wear resistance with the ability to form and maintain precise convex radii. This composite structure allows the roller to create accurate corner radii on grinding wheels while the wear-resistant material minimizes substance loss from the dressing roller itself.
3Device complexity
If a closed cover ring is used on the form dressing roller, then the structure is simplified, but the actual surface roughness on the dressed grinding wheel decreases
Solution Approach 1:
The cover ring incorporates localized features such as recesses or varying surface textures in specific areas to enhance diamond penetration and maintain high actual surface roughness on the grinding wheel. These local modifications do not significantly increase overall structural complexity while improving the critical surface finish parameter.
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
The solution achieves better profile accuracy and higher actual surface roughness on grinding wheels, resulting in improved workpiece quality and increased process reliability, with reduced wear on the dressing roller and extended dressing cycles.
Implementation Method 1
diamond grains in ceramic, metallic, or resin bond for dressing diamond and CBN grinding wheels
Implementation Method 2
clamping screws that secure the cover ring between the carrier body and an attachment ring
Data Source
AI summary
A form dressing roller with a carrier body and a freestanding cover ring containing diamond grains and/or diamond rods configured in ceramic, metallic, or resin bond. The form dressing roller is made and used for dressing diamond and CBN grinding wheels as well as conventional wheels with abrasives made of corundum or silicon carbide. The form dressing roller includes clamping screws for securing the cover ring between the carrier body and an attachment ring, and includes a receiving hole in the center of the carrier body. The cover ring has at least three recesses.