Adaptable Belt Sander for CNC Flatness Tolerance
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Solution Overview
Problem
CNC machines face challenges in achieving tight flatness tolerances due to rough surfaces of machined components, particularly with three-dimensional printed components, which require improved surface finishing techniques.
Innovation Solution
An adaptable belt sander system is designed to be integrated with CNC machines, featuring a drive system, damping system, and a belt system that can travel along a predetermined path to engage and smooth the surface of components, with options for different materials and configurations to accommodate various materials like ceramic, metal, and polymers, allowing for efficient surface finishing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional CNC machining is used to achieve tight flatness tolerances, then manufacturing precision is improved, but manufacturing time and cost increase due to multiple sanding stages and tool changes
Solution Approach 1:
The patent combines multiple sanding belts with different grits onto a single rotating apparatus, allowing all sanding stages to be performed in one operation. The rotating apparatus holds multiple belts that can simultaneously contact the workpiece at different locations, eliminating the need to change tools between sanding stages and thereby reducing manufacturing time while maintaining precision.
Solution Approach 2:
The sanding system is segmented into multiple functional zones on a single rotating apparatus, with each zone containing a belt of specific grit. This segmentation allows different sanding operations to be performed concurrently in one machining cycle, improving productivity without sacrificing the precision that would otherwise require sequential processing.
2Adaptability or versatility
If multiple sanding belts with different materials are used for various materials, then adaptability is improved, but device complexity increases
Solution Approach 1:
The rotating apparatus is designed as a universal platform that can accommodate multiple types of sanding belts for different materials (ceramic, metal, polymer). The apparatus structure and mounting mechanism remain the same, but the belt selection can be changed to match the workpiece material, providing versatility without requiring fundamentally different equipment for each material type.
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 adaptable belt sander system significantly reduces manufacturing time and cost by enabling efficient surface finishing of components with varying materials, including hard ceramics, and allows for quick switching between different materials and sanding stages, improving surface roughness and dimensional accuracy.
Implementation Method 1
a damping system coupled to the housing, the damping system configured to dampen a force of a contact surface of the belt during operation of the adaptable belt sander
Implementation Method 2
a magnet disposed in the piston housing, the magnet configured to attract the spherical ball
Implementation Method 3
a belt system comprising a belt extending from the shaft to a distal end of the adaptable belt sander, the adaptable belt sander configured to travel along a belt path in response to rotation of the shaft, the distal end having a rotating apparatus configured to engage the belt
Data Source
AI summary
An adaptable belt sander may comprise: a tool holder; a housing; a drive system comprising a first gear and a second gear configured to engage the first gear, the second gear coupled to a shaft; and a belt system comprising a belt extending from the shaft to a distal end of the adaptable belt sander, the adaptable belt sander configured to travel along a belt path in response to rotation of the shaft, the distal end having a rotating apparatus configured to engage the belt.