Dual-Gripper Robot for Coarse Aluminum Casting Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for after-treating coarse aluminum castings are inefficient as they require a single robot to sequentially carry and handle castings between multiple machining units, limiting the simultaneous operation and throughput.
Innovation Solution
A robot equipped with a holding mechanism capable of grasping two coarse aluminum castings is used to efficiently transfer them between a first and second machining unit within a cellular manufacturing system, allowing continuous processing by carrying treated castings from one unit to another while processing untreated ones, thereby optimizing the operation of both units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single robot carries coarse aluminum castings one by one to the first and second machining units, then the robot structure remains simple, but the productivity and operational efficiency are low
Solution Approach 1:
The robot's holding means is segmented into two separate grippers (first gripper and second gripper), allowing the robot to independently hold and transport two different castings simultaneously to different machining units, thereby doubling the productivity without requiring two separate robots
Solution Approach 2:
The robot arm serves multiple functions by sequentially carrying castings to the first machining unit, then to the second machining unit, and also performs intermediate carrying tasks between units, making a single robot perform the work of multiple transport operations
2Productivity
If a single robot manually transfers castings between machining units, then the device complexity is low, but the operational efficiency and throughput are limited
Solution Approach 1:
The robot performs continuous useful actions by holding two castings simultaneously and transporting them in an optimized sequence, eliminating idle time between carrying operations and maintaining continuous workflow between machining units
Solution Approach 2:
The robot preliminarily positions and holds the second casting in the second gripper while simultaneously carrying the first casting to the first machining unit, preparing for the next transport operation before the current one completes
Data Source
AI summary
A robot holds an untreated coarse aluminum casting that is located at a predetermined carrying-in corner with the holding means and carries it to the first machining unit. At the first unit it holds a treated casting treated by the first unit with the holding device as well as transferring the untreated casting from the holding device to the first unit. Then it carries the treated casting that has been treated by the first unit to a second machining unit. At the second unit it holds a second treated casting that has been treated by the second unit with the holding device as well as transferring the treated casting treated by the first unit from the holding device to the second unit. Then it carries the second treated casting treated by the second unit to a predetermined carrying-out corner.