Lower Control Arm Bushing Removal Device
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Solution Overview
Problem
The recycling of vehicle components, specifically lower control arms, is hindered by the difficulty in separating aluminum and steel portions, and the removal of bushings and threaded fasteners requires significant force, necessitating robust fixtures.
Innovation Solution
A lower control arm decommissioning device is designed with a fixture to hold the control arm in place and opposing bushing removal tools that apply equal and opposite forces to displace the bushings, along with a rotary tool for removing threaded fasteners, all controlled by a computerized device controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional manual or simple tools are used to remove bushings and threaded fasteners, then the device complexity is low, but the removal time and labor intensity are high
Solution Approach 1:
The patent employs pneumatic and hydraulic actuators to generate high-magnitude forces for rapidly removing bushings and threaded fasteners from lower control arms. The hydraulic actuator system provides controlled high force to displace bushings, while pneumatic tools assist in removing fasteners, enabling quick decommissioning without manual labor
Solution Approach 2:
The patent replaces manual mechanical tools with automated pneumatic and hydraulic systems. The computerized controller coordinates automated tool movement and actuation, substituting human manual operation with machine automation to achieve rapid bushing and fastener removal
2Reliability
If robust fixtures are used to hold the control arm in place during bushing removal, then the stability and safety are improved, but the device complexity and setup time increase
Solution Approach 1:
The patent divides the decommissioning process into separate operational phases: positioning the control arm, removing threaded fasteners, and removing bushings. The fixture system is designed with adjustable components that can be quickly configured for different control arm positions, reducing overall complexity while maintaining stability during each phase
Solution Approach 2:
The fixture system incorporates movable and adjustable elements that can dynamically adapt to different control arm configurations. The computerized controller manages dynamic positioning of tools and fixtures, allowing the system to maintain stability while reducing setup complexity through automated adjustment
3Productivity
If high magnitude forces are applied to remove bushings, then the removal effectiveness is improved, but the risk of damage to the control arm increases
Solution Approach 1:
The patent incorporates sensor devices that provide real-time feedback on the removal process. The computerized controller monitors force application and adjusts actuator output to remove bushings and fasteners effectively while preventing excessive forces that could damage the aluminum control arm body
Solution Approach 2:
The patent uses computerized control to dynamically adjust force parameters during the removal process. The hydraulic actuator system can modulate force magnitude in real-time, applying sufficient force for effective removal while stopping before reaching damage thresholds, thereby protecting the control arm from harm
4Adaptability or versatility
If the device is designed to handle both right and left lower control arms, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent designs the decommissioning device with universal capabilities to handle both right and left lower control arms. The computerized controller and movable tool positioning systems enable the same device to accommodate different control arm configurations, eliminating the need for separate tools for each side
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 device enables efficient and rapid removal of bushings and threaded fasteners from lower control arms, reducing the need for robust fixtures and facilitating the recycling process by applying high magnitude forces quickly and precisely.
Implementation Method 1
an air over hydraulics booster and two hydraulic actuators receiving pressurized hydraulic fluid from the air over hydraulics booster, each hydraulic actuator providing force to a respective one of the opposing bushing removal tools
Data Source
AI summary
A lower control arm decommissioning device is provided. The lower control arm decommissioning device includes a tabletop, a fixture operable to hold a lower control arm in a fixed position relative to the tabletop, and two opposing bushing removal tools configured for pushing simultaneously on two bushings of the lower control arm and displacing the two bushings from the lower control arm.