Linear Measuring System With Diverging Channel For Cylindrical Workpiece Alignment
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Solution Overview
Problem
Existing linear measurement systems face challenges with aligning cylindrical objects, supporting elongate objects along their entire length, and maintaining accurate measurements due to operator error, bending, and wear-related issues, particularly with adjustable friction settings and self-alignment.
Innovation Solution
The system features a rail assembly with diverging channel sides, a linear guide assembly with adjustable preload, and a cradle-like channel that self-aligns objects and supports them fully, along with an adjustable friction mechanism to ensure accurate and stable measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional flat tables and pins are used to support objects, then the structure is simple, but cylindrical objects cannot be self-aligned and require operator intervention
Solution Approach 1:
The patent employs a V-shaped channel with curved surfaces instead of flat tables and pins. The V-shape geometry naturally cradles cylindrical objects, enabling self-alignment through the curved contact surfaces that guide the object into the correct position without operator intervention.
Solution Approach 2:
The V-shaped channel design allows the measurement system to automatically align cylindrical objects without requiring operator skill or manual positioning. The object's own geometry interacts with the V-shape to achieve proper alignment, making the system self-servicing for alignment purposes.
2Measurement precision
If objects are suspended between two surfaces, then the support structure is simple, but flexible objects bend and cause measurement errors
Solution Approach 1:
The V-shaped channel provides continuous curved support along the length of the channel, preventing flexible objects from bending between discrete support points. The curved surfaces cradle the object, distributing support forces along the entire contact length rather than at isolated points.
3Adaptability or versatility
If the sliding platform has fixed friction settings, then the manufacturing is simple, but the platform cannot accommodate different object types
Solution Approach 1:
The sliding platform incorporates adjustable friction mechanisms that allow the operator to modify the friction characteristics based on the specific object being measured. This dynamic adjustment capability enables the same platform to handle different object types, weights, and measurement requirements effectively.
Solution Approach 2:
The system allows changing the friction parameter of the sliding platform to accommodate different measurement scenarios. By adjusting friction settings, the platform can work with various object types without requiring different hardware components, maintaining versatility while simplifying the overall system design.
4Measurement precision
If additional support surfaces are added to prevent bending, then measurement accuracy improves, but the measurement process slows down
Solution Approach 1:
The V-shaped channel provides continuous support along its length, eliminating the need for multiple discrete support surfaces. The curved geometry naturally prevents bending of flexible objects throughout the entire channel, maintaining measurement accuracy without requiring additional support elements that would slow down the measurement process.
Data Source
AI summary
A linear measuring system has a base, a rail assembly with a pair of tracks, a channel between the tracks, a linear guide assembly with a bearing block and channel anvil, a linear encoder assembly with a scale and reader head, and a fixed anvil. The bearing block has an adjustable contact preload for sliding along the tracks. The bearing block varies the distance between the channel anvil and the fixed anvil, and reader head is connected to the bearing block and slides in reading engagement with the scale to determine the distance between the anvils. The channel's sides diverge from each other as they extend from the bottom to the top, and the channel anvil extends down to the bottom of the channel. The rail assembly can be formed from a single elongate beam with the channel on the beam's top side and the tracks on the beam's sides.