Self-Righting Threaded Spindle Module for Brake Assembly Alignment
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Solution Overview
Problem
The precise alignment and disturbance-free insertion of threaded spindle modules in mass production of motor vehicle brakes are challenging due to high precision requirements, leading to costly and fault-prone assembly processes, with existing modules prone to skewing upon slight mis-positioning.
Innovation Solution
A self-righting threaded spindle module design with a homogeneous density distribution, low center of gravity, and optimized pivot joint configuration, incorporating the Gömböc phenomenon, automatically stabilizes and aligns itself under gravity, ensuring correct positioning without additional ballast or complex image-processing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional threaded spindle modules are used with standard mounting procedures, then the assembly process requires complex image-processing systems and additional ballast, but the self-aligning capability and assembly simplicity are reduced
Solution Approach 1:
The threaded spindle module is designed with a self-aligning capability through its specific center of gravity position and geometric shape, enabling it to automatically orient itself correctly during assembly without requiring external guidance systems or additional ballast components
Solution Approach 2:
The module employs asymmetric geometric design with specific center of gravity positioning that creates a preferred orientation, allowing the component to self-align during insertion through gravitational and geometric constraints rather than symmetric design requiring external alignment
2Manufacturing precision
If high precision alignment is required for blind mounting, then the positioning accuracy is improved, but the assembly cost and process complexity increase significantly
Solution Approach 1:
The threaded spindle module automatically achieves correct alignment through its self-aligning design, eliminating the need for complex image-processing systems and external alignment tools during blind mounting operations
Solution Approach 2:
The module is pre-designed with specific geometric properties and center of gravity positioning that enable it to self-align during insertion, preparing the alignment function in advance rather than requiring it during assembly
3Productivity
If conventional mounting methods are used without self-aligning features, then the device structure is simpler, but the assembly process becomes more error-prone and less efficient
Solution Approach 1:
The self-aligning threaded spindle module automatically corrects its own positioning during assembly, reducing assembly errors and improving reliability without requiring complex external systems
Solution Approach 2:
The design incorporates features that prevent misalignment from the outset through geometric constraints and center of gravity positioning, countering potential assembly errors before they occur rather than correcting them later
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
This design simplifies and automates the assembly process, reducing production costs and disruptions by allowing the threaded spindle module to automatically center and align itself, enhancing the stability and efficiency of motor vehicle brake production.
Implementation Method 1
The threaded spindle module (1) automatically stabilizes and aligns itself under force of gravity
Data Source
AI summary
A threaded spindle module includes a threaded spindle which extends along a longitudinal axis and has an external thread at an output-side end and, offset with respect to the external thread, a drive-side end with a peg for rotationally fixed coupling to an actuator interface, and with a threaded nut which is screwed onto the external thread, and a joint-like curved support point of the threaded nut is provided as a pivot joint of the threaded spindle module, with a pivot joint center relative to an associated receiver.