Shut-off Screwdriver Segmented Control for Torque Precision
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Solution Overview
Problem
Existing screwdriver devices lack the precision and efficiency required for high-repeatability torque control and testing in industrial assembly applications, particularly in achieving precise torque levels and efficient testing processes without interrupting production.
Innovation Solution
A shut-off screwdriver device with a control and/or regulating unit that executes specific screwing programs, including a test sequence program, allowing for adjustable operating states with precise torque control and efficient testing through a dedicated test operating state, enabled by a processor unit, memory, and interface for parameterization and communication with external units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a shut-off screwdriver device executes a complete screwing program with multiple program steps, then the assembly process is comprehensive and complete, but the testing of individual program steps becomes complex and time-consuming
Solution Approach 1:
The patent segments the screwing program into individual program steps that can be tested independently. The control unit is configured to execute only a specific program step when triggered by a communication unit, rather than running the complete screwing program. This segmentation allows testers to isolate and test individual steps without executing the entire assembly sequence, thereby reducing testing complexity while maintaining reliability.
2Reliability
If the screwing program executes all steps sequentially, then the assembly process is thorough, but production interruptions occur during testing
Solution Approach 1:
The patent enables preliminary testing of individual program steps before full assembly execution. The control unit can be triggered to execute specific program steps independently through a communication unit, allowing thorough validation of each step in advance. This preliminary action ensures assembly reliability while preventing production interruptions, as issues are identified and resolved during targeted testing rather than during full assembly operations.
3Reliability
If the control unit executes the complete screwing program, then all assembly operations are performed, but testing efficiency decreases due to inability to test individual steps
Solution Approach 1:
The patent introduces dynamic execution modes for the control unit. The control unit can switch between executing the complete screwing program and executing individual program steps based on trigger signals from a communication unit. This dynamic capability allows the system to adapt its execution scope to testing requirements, enabling rapid testing of specific steps without time-consuming execution of the entire program, thereby reducing testing time while maintaining operational completeness.
Data Source
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AI summary
The invention relates to a shut-off screwdriver device (10) with at least one control and/or regulating unit (14) which, in at least one screwing operating state (16), executes at least one screwing program (18) with at least one screwing program step (20) to control a tool (22). It is proposed that the control and/or regulating unit (14) executes at least one test sequence program (26) in at least one test operating state (24).