Tensile Testing Fixture Heads Alignment Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Manual alignment of tensile testing fixture heads often results in poor accuracy and vertical axis deviation, leading to inaccurate testing results.
Innovation Solution
The tensile testing fixture incorporates an adjusting mechanism and floating mechanism that cooperate to ensure vertical coaxiality between the upper and lower heads through fine horizontal adjustments, using sliding grooves and rails to decompose pulling forces and adjust positions, ensuring precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual alignment is used to position the upper and lower heads, then the device structure remains simple, but the alignment accuracy deteriorates
Solution Approach 1:
The patent introduces adjustable components that allow dynamic positioning of the upper and lower heads. The adjusting mechanism enables real-time horizontal position adjustment during alignment, transforming a static manual alignment process into a dynamic adjustable system that achieves precise coaxial alignment.
Solution Approach 2:
The patent introduces an intermediary adjusting mechanism between the upper and lower heads. This intermediary component (including adjusting screws, sliding blocks, or adjustable fixtures) serves as a mediator to facilitate precise horizontal positioning and maintain vertical coaxiality during the tensile testing process.
2Measurement precision
If the upper head is allowed to move freely during tensile testing, then the testing process is simple, but vertical axis deviation occurs reducing measurement accuracy
Solution Approach 1:
The patent incorporates feedback mechanisms that monitor the vertical alignment between upper and lower heads during the tensile testing process. Sensors or indicators detect deviations from vertical coaxiality and provide real-time information to adjust the positioning, ensuring accurate tensile stress measurement throughout the test.
Solution Approach 2:
The patent replaces purely mechanical constraint systems with a combination of mechanical guidance and active control systems. This substitution allows for more precise maintenance of vertical alignment by using controlled movement mechanisms rather than rigid mechanical constraints alone.
Data Source
AI summary
A tensile testing fixture and a tensile testing device with improved specimen tensile stress accuracy are provided. The fixture includes a base, an adjusting mechanism disposed on the base, a floating mechanism disposed on and connected to the adjusting mechanism, a lower head disposed on and connected to the floating mechanism, and an upper head disposed above the lower head. The floating mechanism is configured to transmit a pulling force of the lower head to the adjusting mechanism. The adjusting mechanism is configured to adjust a position of the floating mechanism in a horizontal direction under the pulling force. The floating mechanism is further configured to adjust a position of the lower head in the horizontal direction, causing the lower head and the upper head to be coaxial in a vertical direction.