Fluid-Free Mechanical Smoothing Device for Precision Surface Finish
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Solution Overview
Problem
Existing devices for smoothing workpiece surfaces using fluid-based force transmission lack precision due to positional fluctuations of the smoothing body and fluid leakage, leading to contamination and fluid loss.
Innovation Solution
A device with a mechanical power transmission system that moves the piston and smoothing body receptacle in a fluid-free manner, using a rigid connection to ensure precise positioning and movement, and a closed fluid line system to prevent fluid escape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fluid-based force transmission is used to move the smoothing body, then the device can achieve movement and force application, but the position of the smoothing body cannot be specified with sufficient precision and fluid leakage occurs
Solution Approach 1:
The patent replaces the fluid-based force transmission system with a mechanical drive system consisting of a drive shaft, drive gear, and driven gear. The motor-driven mechanical transmission directly couples the drive source to the smoothing body holder, eliminating the intermediary fluid medium that caused positioning inaccuracies and leakage. This mechanical substitution provides rigid, precise force and motion transmission while maintaining ease of operation.
2Ease of operation
If fluid-based force transmission is used to move the smoothing body, then the device can achieve movement and force application, but fluid leakage occurs contaminating the device and workpiece
Solution Approach 1:
The patent eliminates the fluid transmission system entirely and replaces it with a closed mechanical drive system. The motor, drive shaft, and gear mechanism form a sealed mechanical transmission that applies force to the smoothing body holder without any fluid medium. This substitution completely prevents fluid leakage and the associated contamination of the device and workpiece while preserving the movement capability.
3Ease of operation
If fluid-based force transmission is used to move the smoothing body, then the device can achieve movement and force application, but the smoothing body moves back and forth in the fluid causing position fluctuations
Solution Approach 1:
The patent replaces the fluid-based transmission with a rigid mechanical drive system where the drive gear meshes directly with the driven gear on the smoothing body holder. This direct mechanical coupling eliminates the compliance and cushioning effects of fluid transmission, providing stable, fluctuation-free position control. The smoothing body holder is firmly coupled to the mechanical drive, preventing any back-and-forth movement or position instability while maintaining smooth operation.
Data Source
Figure 1
AI summary
A device for smoothing a workpiece surface (1) is shown and described, comprising: a housing (5a, 5b), a piston (2), a smoothing element (4) for applying a smoothing force to a workpiece surface, and a smoothing element receptacle (3) for receiving the smoothing element (4), wherein the smoothing element receptacle (3) and/or the smoothing element (4) is designed to be movable, preferably displaceable, and wherein the piston (2) is designed to be hydraulically and/or pneumatically movable, preferably displaceable. In order to achieve more defined and precise smoothing by means of the device, it is proposed that the piston (2) and/or the smoothing element receptacle (3) be designed such that the force transmission from the piston (2) and/or the smoothing element receptacle (3) to the smoothing element (4) is fluid-free.