Vulcanized Fiber Grinding Tool Adhesive Bonding
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Solution Overview
Problem
Vulcanised fibre grinding discs face issues such as poor heat dissipation, risk of tearing with coarse grain sizes, need for a backing pad, minimum setting angle requirements, and high tool change times, which incur additional costs and risks of surface damage.
Innovation Solution
A vulcanised fibre grinding tool with two discs adhered together by an adhesive layer, eliminating the need for a separate backing pad, allowing for 0° setting angle, improved heat dissipation, and simplified fastening to machine tools, including through holes for better visibility and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a backing pad is used to support the vulcanised fibre grinding disc, then the structural stability is improved, but the heat dissipation capability deteriorates and the risk of surface damage increases
Solution Approach 1:
The invention extracts and removes the backing pad from the grinding tool structure. By eliminating the rubber or plastic backing pad that causes heat accumulation and surface damage, the grinding disc can be supported directly by the machine tool spindle, thereby improving heat dissipation while maintaining structural stability through direct mounting.
Solution Approach 2:
The invention introduces a mounting plate as an intermediary component between the grinding disc and the machine tool spindle. This mounting plate serves as a stable support structure that eliminates the need for a backing pad, providing both structural stability and improved heat dissipation by allowing direct contact between the grinding disc and the cooling capacity of the spindle.
2Reliability
If a backing pad with fastening elements is used, then the grinding disc can be securely fastened, but the minimum setting angle requirement increases to approximately 15° to prevent surface damage
Solution Approach 1:
The invention removes the backing pad with its fastening elements from the system. Instead, the grinding disc is directly mounted to the machine tool spindle using a mounting plate, which eliminates the need for a minimum setting angle of 15° and allows operation at 0° setting angle without risk of surface damage from protruding fastening elements.
Solution Approach 2:
The mounting plate acts as an intermediary that provides secure fastening of the grinding disc to the spindle without requiring a backing pad. This intermediary structure enables reliable mounting while allowing the grinding disc to be positioned at 0° setting angle, eliminating the operational constraint of maintaining a 15° minimum angle.
3Reliability
If conventional fastening methods with backing pads are used, then the grinding disc can be mounted, but the tool change time increases and additional costs are incurred
Solution Approach 1:
The invention extracts the backing pad component entirely from the mounting system. By eliminating the backing pad and using a simple mounting plate with central hole for direct spindle mounting, the tool change process is simplified and accelerated, reducing tool change time while maintaining reliable mounting capability.
Solution Approach 2:
The mounting plate serves as a simplified intermediary component that enables quick and reliable mounting of the grinding disc to the spindle. This intermediary structure reduces the complexity of the mounting system, allowing for faster tool changes without compromising the reliability of the grinding disc attachment.
4Stability of the object's composition
If rubber or plastic backing pads are used, then the grinding disc can be supported, but the high abrasion rate of the backing pad material causes overheating
Solution Approach 1:
The invention removes the rubber or plastic backing pad from the support system. By eliminating these high-abrasion materials that generate excessive heat, the grinding disc is supported directly through the mounting plate and spindle connection, thereby reducing heat generation and energy loss while maintaining support capability.
Solution Approach 2:
The mounting plate serves as an intermediary support structure that replaces the rubber or plastic backing pad. This intermediary component eliminates the high-abrasion materials that cause overheating, providing mechanical support while significantly reducing heat generation and energy loss during the grinding process.
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 significantly reduces tearing risks, lowers tool costs, enhances heat dissipation, enables machining of narrower grooves without surface damage, and reduces tool change times, providing an economical advantage with improved performance.
Implementation Method 1
two vulcanised fibre grinding discs, which are provided with an abrasive at least on one of their outer sides and are adhered to one another over the entire surface by means of an adhesive layer arranged between the vulcanised fibre grinding discs
Implementation Method 2
Vulcanised fibre grinding discs come under coated abrasives and are described in detail in DIN ISO 16057
Data Source
AI summary
The invention relates to a vulcanized fiber grinding tool (1) comprising two vulcanized fiber grinding disks (2, 3) which are adhered to each other over the entire surface by means of an adhesive layer (4) arranged between the vulcanized fiber grinding disks (2, 3) such that the vulcanized fiber grinding disk (2, 3) outer faces provided with the grinding means point away from each other and the use of a support plate is not necessary.