Compact Loader Arm for Automated Part Handling
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Solution Overview
Problem
Current automatic systems for loading and unloading product parts within machines are cumbersome, costly, and obstruct access due to their large footprint and high power requirements, limiting their reach and efficiency.
Innovation Solution
A compact automated parts loader system with a rotatable loader arm that extends into a side door of the machine, utilizing low-voltage DC motors and a spring assembly to minimize torque and power consumption, allowing for efficient loading and unloading without obstructing the front door access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If complex robots are used for automatic loading and unloading, then automation capability is improved, but footprint and power consumption increase
Solution Approach 1:
The system divides the automation function into two separate components: a simple loader arm for automatic loading/unloading operations, and the main machine for processing. This segmentation allows the automation component to be compact while the main machine remains accessible, resolving the contradiction between automation capability and footprint.
Solution Approach 2:
The loader arm operates from a vertical dimension, extending upward from the top surface of the machine, rather than horizontally from the front. This dimensional change enables automation without obstructing front door access, simultaneously achieving automation capability while maintaining operator access and minimizing footprint.
2Extent of automation
If complex robots are used for automatic loading and unloading, then automation capability is improved, but power consumption increases
Solution Approach 1:
The loader arm incorporates a spring assembly that provides self-service by automatically returning the arm to its initial position after loading/unloading operations. This eliminates the need for continuous power consumption to maintain position or reset the arm, significantly reducing energy usage while maintaining automation capability.
Solution Approach 2:
The system replaces complex robotic mechanisms with a simpler spring-based mechanical return system. This substitution reduces power consumption by eliminating the need for high-torque motors and complex control systems, while still achieving automatic loading and unloading functionality.
3Ease of operation
If loader arm extends into side door, then operator access to front door is maintained, but reach capability is limited
Solution Approach 1:
The loader arm extends vertically from the top surface of the machine rather than horizontally from the side door. This dimensional change maintains operator access to the front door while providing sufficient reach capability to access the machining chamber through the top opening.
4Measurement precision
If damping mechanism is added to stabilize loader arm, then positioning precision is improved, but device complexity increases
Solution Approach 1:
The damping mechanism acts as an intermediary between the loader arm and the base, providing passive vibration reduction and positioning stability. This simple damping element achieves positioning precision without requiring complex active control systems, sensors, or multiple actuators, thus minimizing device complexity.
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 system achieves efficient loading and unloading of product parts with a smaller footprint, reduced power consumption, and lower costs, while maintaining operator access to the machine, by using low-torque motors and a damping mechanism to stabilize and rotate the loader arm.
Implementation Method 1
The loader arm may include a spring assembly, e.g., a gas spring mechanism, configured to facilitate rotation of the loader arm
Implementation Method 2
as well as to dampen motion of the loader arm to reduce or eliminate a bounce effect of the loader arm
Data Source
AI summary
Automated Part Loader (APL) systems and methods for loading and unloading product parts within a machine, e.g., a vertical mill, are provided. The APL system is compact and has a smaller footprint compared with current automated loading systems. The APL system may include a spring-based rotatable loader arm that may be actuated to rotate, e.g., via low voltage motors, relative to a loading table, e.g., 90 degrees, and extend linearly through a side door of the machine for loading and unloading product parts. The loader arm may include a pair of pneumatic grippers configured for picking up and releasing product parts.