Length Measuring Slide With Spring-Loaded Fine Adjustment
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Solution Overview
Problem
Length measuring devices using screw-type feed mechanisms suffer from misalignment due to play or backlash, which affects precise positioning of workpieces during machining.
Innovation Solution
A length measuring device with a sliding unit equipped with a fine adjustment mechanism that includes a feed screw and a compression coil spring to minimize misalignment by maintaining a fixed positional relationship between the sliding body and temporary securer, using a compression coil spring to counteract play in the screw-type feed mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a screw-type feed mechanism is used for fine adjustment, then positioning precision is improved, but play or backlash in the mechanism causes misalignment
Solution Approach 1:
The patent converts the harmful effect of play or backlash in the screw-type feed mechanism into a beneficial force by introducing a compression coil spring. The spring applies continuous compressive force to eliminate gaps between mating surfaces, transforming the potential for misalignment into precise and reliable positioning capability
2Reliability
If a compression coil spring is introduced to reduce backlash, then alignment accuracy is improved, but device complexity increases
Solution Approach 1:
The patent merges the compression coil spring with the existing screw-type feed mechanism components. The spring is integrated into the clamping structure, combining the fine adjustment function with the backlash elimination function in a unified mechanism, thereby minimizing additional complexity while achieving improved alignment accuracy
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 device enables precise and rapid positioning of workpieces by suppressing misalignment, allowing for accurate measurement and machining operations with reduced discrepancies.
Implementation Method 1
a compression coil spring, disposed coaxially with the feed screw and between the sliding body and the temporary securer, for reducing backlash between the sliding body and the temporary securer
Data Source
AI summary
A length measuring device is equipped with a slide rail, and with a sliding unit that is slidably mounted to the slide rail and has a sliding body, a length measuring unit which measures a distance slid by the sliding body with respect to the slide rail, a temporary securer, a fine adjustment mechanism having a feed screw that couples the sliding body and the temporary securer so as to permit relative motion therebetween in the sliding direction, a first clamp for securing the sliding body, and a temporary securing clamp for securing the temporary securer. The fine adjustment mechanism is equipped with a coil spring. The coil spring is disposed coaxially with the feed screw and between the sliding body and the temporary securer, and causes the sliding body and the temporary securer to tend to be pushed toward or pulled away from each other.