Grinder Protective Cover Deformation for Workpiece Interference
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Solution Overview
Problem
Existing grinders face a decrease in work efficiency due to protective covers that interfere with the workpiece, especially when the surface area covered by the protective cover is increased, hindering processing tasks such as cutting and grinding.
Innovation Solution
A grinder design featuring a cover that is partially or fully composed of elastic and/or resilient materials, allowing it to deform away from the tool accessory, thereby preventing interference with the workpiece and maintaining efficiency even with a larger covered surface area. The cover can be configured to fold or deform in specific angular areas, using materials like rubber or metal, and may include a lock nut with pilot parts to accommodate different tool accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the surface area of the protective cover is increased to improve safety and dust prevention, then the covering effectiveness is improved, but the cover interferes with the workpiece and work efficiency decreases
Solution Approach 1:
The protective cover is designed with a deformable portion that can dynamically change its position and shape. When the workpiece approaches, the cover deforms away from the tool accessory, preventing interference with cutting or grinding operations. This dynamic adaptation allows the cover to provide maximum protection when not in use while automatically clearing the work area during operation, thus resolving the contradiction between dust prevention and work efficiency
Solution Approach 2:
The cover utilizes elastic or resilient materials that allow it to change its physical state between a covering position (for dust prevention) and a retracted position (for work efficiency). The material properties enable the cover to deform elastically when contacted by the workpiece or through spring mechanisms, changing its spatial parameters to avoid interfering with the work area while maintaining protective coverage
2Reliability
If the protective cover is made rigid to maintain structural stability and protection, then the protective function is improved, but it cannot adapt to workpiece movement and interferes with processing
Solution Approach 1:
The protective cover is divided into a fixed portion and a deformable portion. The fixed portion maintains structural stability and provides reliable protection, while the deformable portion can adapt to workpiece movement. This segmentation allows different parts of the cover to serve different functions - the rigid section ensures protective reliability while the flexible section provides adaptability to various workpiece shapes and movements
Solution Approach 2:
The deformable portion of the cover is constructed using flexible materials such as elastic or resilient substances. This flexible shell can bend and deform to accommodate workpiece movement while maintaining the overall protective function. The flexible material allows the cover to conform to different workpiece geometries and movement patterns, providing both reliability and adaptability
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 deformable cover design enhances work efficiency by preventing interference with the workpiece, allowing for effective processing without hindrance, while also facilitating tool accessory exchange and dust prevention, and ensuring unobstructed user visibility.
Implementation Method 1
at least one part of the cover may comprise or be composed of an elastic and/or resilient material. The cover can be configured such that at least part thereof can deform, due to the deformation of the elastic material, in a direction away from the tool accessory.
Implementation Method 2
the cover can be configured such that at least one part of the cover can be resiliently deformed in a direction away from the tool accessory
Data Source
AI summary
A grinder includes a motor, a housing, a spindle and a cover. The spindle protrudes downward from the housing, is driven by the motor, and thereby rotates. The cover is provided on the spindle in the circumferential direction and at least partially covers a tool accessory, which is mounted on the spindle. The cover is configured such that at least one part deforms and/or is composed of an elastic material.