Discontinuous Drive Tool Angle Detection

The patent replaces mechanical torque measurement methods with electronic sensing systems. A torque sensor electronically measures torque in real-time during the discontinuous drive operation, while a rotational position sensor electronically tracks the fastener's angular displacement. This substitution enables precise measurement of both torque threshold achievement and rotation angle in automated high-speed tightening operations.

The patent implements a feedback control system where torque and rotational position sensors continuously monitor the tightening process. The system compares real-time measurements against predetermined threshold values for torque and angle, providing feedback that enables automated control of the discontinuous drive tool to achieve precise fastener tightening specifications.

The patent introduces intermediary sensing components - a torque sensor positioned to measure reaction torque during fastener tightening, and a rotational position sensor to track angular displacement. These intermediaries convert physical torque and rotation into measurable electrical signals, enabling the system to capture and process information about threshold torque levels and rotation angles that would otherwise be inaccessible.

The patent replaces traditional mechanical torque indication methods with electronic sensing and data processing systems. The torque sensor and rotational position sensor work together with a control system to electronically determine when threshold torque is reached and to measure subsequent rotation angle, preventing information loss about critical tightening parameters.

The patent uses feedback from torque and rotational position sensors to verify that the two-stage tightening process is proceeding correctly. The system monitors whether the torque threshold is properly achieved in stage one and whether the rotation angle in stage two falls within specified limits, providing feedback that can detect and prevent assembly errors such as cross-threading, rehits of pre-tightened fasteners, and incorrect component assembly.

The patent applies preliminary anti-action by using the rotational position sensor to detect abnormal rotation patterns before they result in assembly errors. The system can identify cross-threading or pre-tightened fasteners by detecting unexpected torque spikes or rotation resistance before the tightening process completes, allowing the system to stop and prevent harmful assembly errors.