Assembly Wrench Calibration Device with Pivoting Stops
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Solution Overview
Problem
Existing methods for checking and calibrating assembly wrenches with integrated angle measuring devices are complex, costly, and lack accuracy, often requiring return to the manufacturer and resulting in variable quality of screw connections.
Innovation Solution
A testing device with a tool holder and drive element, featuring a pivoting receiving device with defined stops and a preloading mechanism, allows for rapid, cost-effective, and accurate calibration of assembly wrenches, enabling on-site checks without lengthy downtimes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If assembly wrenches are checked using conventional methods, then the checking process can be performed, but the complexity and cost increase significantly, requiring return to the manufacturer
Solution Approach 1:
The checking device is divided into separate functional components: a receiving device with pivotable arm, independent stop elements at defined positions, and a fixing device. This segmentation allows each component to perform its specific function independently, simplifying the overall system while maintaining checking accuracy without requiring manufacturer intervention.
Solution Approach 2:
The patent introduces an intermediary checking device that mediates between the assembly wrench and the checking process. This intermediary device with its defined stops and pivotable receiving device enables accurate angle measurement without directly modifying the assembly wrench or requiring complex manufacturer-level facilities.
2Measurement precision
If assembly wrenches are sent to the manufacturer for checking, then accurate calibration can be achieved, but time loss and cost increase
Solution Approach 1:
The checking device enables assembly wrenches to be self-checked or checked in-place without requiring return to the manufacturer. The device includes all necessary components (receiving device, stops, fixing device) that allow the assembly wrench to undergo accurate angle measurement and calibration locally, eliminating downtime and reducing costs.
Solution Approach 2:
The device is designed with pre-defined stop positions and a pivotable receiving device that can be positioned in advance. This preliminary setup allows for rapid checking operations without requiring complex setup procedures or manufacturer involvement, thus reducing time loss while maintaining measurement precision.
3Ease of operation
If conventional angle disks are used for checking, then the checking process is simple, but the accuracy is insufficient
Solution Approach 1:
The patent replaces simple mechanical angle disks with a more sophisticated system involving a pivotable receiving device with defined stop positions. This substitution maintains ease of operation while significantly improving measurement precision through the use of precisely positioned stops and a pivotable mechanism that allows accurate angle measurement and comparison.
Solution Approach 2:
The checking device changes the parameters of the checking process by introducing defined stop positions at specific angles and using a pivotable receiving device. This allows for precise control of the measurement parameters, enabling accurate verification of the assembly wrench angle display while keeping the operation simple through the use of clearly defined reference points.
4Reliability
If assembly wrenches are checked frequently to ensure constant quality, then screw connection quality improves, but checking time and resource consumption increase
Solution Approach 1:
The compact checking device enables rapid in-place verification of assembly wrenches, allowing frequent checking without significant productivity loss. The device's portability and simplicity permit quick checks that can be performed regularly to maintain screw connection quality without consuming excessive time or resources.
Solution Approach 2:
The pivotable receiving device and mobile checking design allow for dynamic, flexible checking operations that can be performed quickly and repeatedly. This dynamic approach enables frequent verification of assembly wrench accuracy while maintaining high productivity, as the device can be rapidly deployed and removed from the work area.
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 solution enables precise and efficient calibration of assembly wrenches, ensuring consistent quality of screw connections by allowing for accurate angle measurements and adjustments, reducing costs and logistical burdens.
Implementation Method 1
The angle by which the assembly wrench has been turned is measured in that case, for example, by a gyrometer integrated in the assembly wrench
Data Source
AI summary
A device for testing an assembly wrench has a tool holder, and a drive element includes a fixing device which is configured to fix the tool holder. A receiving device is configured to receive and fix the drive element and may be pivoted over an arc, and at least two stops are disposed along the arc and are configured to arrest the receiving device in one defined position at a time.