Joining Module Telemetry Layout for Stable Tappet Force Sensing
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Solution Overview
Problem
Existing electromechanical joining modules face challenges in the reliable transmission of measured data due to mechanical instability and complex manufacturing processes, which can lead to data interruption and increased costs.
Innovation Solution
The electromechanical joining module incorporates a stator coil that extends over the entire stroke length, eliminating the need for a tappet coil groove and enhancing mechanical stability. This design improves data transmission through near-field telemetry and simplifies manufacturing by avoiding complex guide surface precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the tappet coil is placed in a groove in the tappet, then the coil can be positioned along the stroke length, but the mechanical stability of the tappet deteriorates and bending occurs
Solution Approach 1:
The invention extracts the tappet coil from the tappet structure and relocates it to the stator. The stator coil now extends over the entire stroke length in the stator, eliminating the need for a groove in the tappet. This resolves the contradiction by removing the structural complexity that compromised mechanical stability while maintaining the functional requirement of coil positioning along the stroke path.
Solution Approach 2:
The invention introduces the stator as an intermediary component that carries the coil structure. Instead of integrating the coil into the moving tappet, the stator serves as a stationary intermediary that provides the coil mounting structure, thereby decoupling the coil positioning function from the tappet's mechanical structure and preserving tappet stability.
2Manufacturing precision
If the tappet is guided with high precision guide surfaces, then the movement accuracy improves, but the manufacturing complexity and cost increase
Solution Approach 1:
The invention replaces the mechanical guide surface system with a magnetic field-based positioning system. The stator coil generates a magnetic field that interacts with the tappet coil to provide guidance and positioning forces, eliminating the need for high-precision mechanical guide surfaces. This substitution reduces manufacturing complexity while maintaining movement accuracy.
3Reliability
If the tappet coil and stator coil are placed in close arrangement, then near-field telemetry is enabled, but mechanical contact may interrupt data transmission
Solution Approach 1:
By extracting the coil structure from the moving tappet and placing it in the stationary stator, the invention eliminates the relative motion between coils. The stator coil remains fixed in position, ensuring stable spatial relationship with the tappet coil without risk of mechanical contact or misalignment, thereby maintaining reliable near-field telemetry throughout the stroke.
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 enhances the mechanical stability of the tappet, reduces the likelihood of coil contact and data interruption, and simplifies manufacturing, resulting in improved data transmission reliability and cost-effectiveness.
Implementation Method 1
The tappet electronics and the stator electronics are suitable for transmitting the measured data from the tappet coil to the stator coil by near-field telemetry. This involves an inductive coupling between the tappet coil and the stator coil.
Data Source
AI summary
An electromechanical joining module for applying a force includes a drive unit attached to a tappet moveable by the drive unit in a linear manner. A force transducer is attached to the tappet and measures the applied force and generates measured values for the measured force. The tappet and force transducer can be moved linearly relative to a stationary stator over a stroke length. The tappet includes tappet electronics and a tappet coil. The stator includes stator electronics and a stator coil, which remains in a close arrangement with respect to the tappet coil in the course of linear movement over a stroke length. The tappet electronics and the stator electronics are configured for transmitting the measured values as measured data from the tappet coil to the stator coil by near-field telemetry as the stator coil extends over the entire stroke length.