Thread Testing Device with Pivotable Compensation Mechanism
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Solution Overview
Problem
Existing thread testing devices face challenges in standardizing applied forces during manual handling and require additional sensors when using manipulators, and they can produce inadequate results due to axial misalignment between the thread and thread plug gauge axes.
Innovation Solution
A thread testing device with a guide and compensation mechanism for axial alignment, an electric drive for torque control, and a torque setting device to ensure consistent testing conditions, allowing for flexible and accurate thread testing without additional sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling of thread testing device is used, then ease of operation is improved, but force standardization deteriorates
Solution Approach 1:
The thread testing device incorporates an electric drive that automatically applies standardized torque to the thread gauge during testing. This self-acting mechanism eliminates the need for manual force application, ensuring consistent and repeatable testing conditions while maintaining ease of operation through automated control.
2Measurement precision
If additional force sensors are added to monitor applied forces, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The device replaces complex mechanical force sensing systems with an electric drive that directly controls and monitors torque application through electrical parameters. The drive unit incorporates torque control capabilities that provide precise force monitoring without requiring separate mechanical sensors, thereby maintaining measurement precision while reducing overall system complexity.
3Ease of operation
If axial misalignment between thread axis and thread gauge axis occurs, then ease of operation is maintained, but measurement precision deteriorates
Solution Approach 1:
The device incorporates a guiding mechanism that pre-aligns the thread gauge with the thread axis before the testing process begins. This preliminary alignment action ensures co-axiality is established prior to torque application, preventing measurement errors due to misalignment while maintaining ease of operation through automated positioning.
4Device complexity
If standard manipulators with grippers are used, then device complexity is reduced, but force standardization deteriorates
Solution Approach 1:
The device introduces an electric drive unit as an intermediary between the manipulator gripper and the thread gauge. This intermediary component receives the gripping action from standard manipulators and translates it into precisely controlled torque application, thereby maintaining compatibility with simple manipulators while achieving force standardization through the drive's torque control capabilities.
Data Source
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AI summary
The invention relates to a thread testing device for testing threads, comprising a housing (50) and a bearing (82) arranged in the housing for rotatably supporting a thread gauge (60) for screwing into a thread to be tested, a measuring direction for measuring the screw-in depth of the rotatably supported thread gauge (60), and a guide and compensation device (10) for guiding the housing and for compensating for an axial offset between the housing, bearing and thread, wherein the guide and compensation device (10) is arranged on the housing (50) so as to be pivotable about at least two axes perpendicular to the longitudinal axis of the housing (50).