Multi-Axis Robot Work Tool With Adjustable Links for Contact Avoidance
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Solution Overview
Problem
Existing multi-axis robots with work tools that swing an L-shaped tool arm are not effective in preventing contact with workpieces of varying shapes, requiring tool arm replacements and reducing work efficiency.
Innovation Solution
A multi-axis robot with a work tool featuring a first link and a second link, each pivotally supported, and change mechanisms that adjust the angles of these links to match the shape of the workpiece, allowing the robot to move along the workpiece shape while avoiding contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tool arm is swung to avoid contact with the workpiece, then contact prevention is improved, but the work efficiency deteriorates due to frequent tool arm replacements
Solution Approach 1:
The invention applies the dynamics principle by making the tool arm's secondary arm movable rather than fixed. The secondary arm can change its angle relative to the primary arm through a rotation mechanism, allowing the tool to dynamically adapt its configuration to match different workpiece shapes and avoid contact during operation, thereby eliminating the need for frequent replacements and improving work efficiency
Solution Approach 2:
The invention implements parameter changes by varying the angle parameter of the secondary arm relative to the primary arm. By adjusting this angle parameter to different values corresponding to different workpiece geometries, the tool can optimize its configuration for each specific task, achieving both contact prevention and maintained productivity
2Device complexity
If the tool arm is designed with a fixed L-shape, then the device complexity is reduced, but the adaptability to different workpiece shapes deteriorates
Solution Approach 1:
The invention transforms the static L-shaped tool arm into a dynamic structure where the secondary arm can rotate relative to the primary arm. This dynamic capability allows the tool to adapt to various workpiece shapes without requiring complex multi-component designs, achieving versatility through controlled motion rather than structural complexity
Solution Approach 2:
The invention achieves universality by enabling a single tool arm configuration to perform multiple functions across different workpiece types. The ability to adjust the secondary arm angle allows the same tool to effectively work on various geometries, replacing the need for multiple specialized tool arms
Data Source
AI summary
A multi-axis robot includes: a robot main body including a head and a movement mechanism that three-dimensionally moves the head; and a work tool attached to the head. The work tool includes: a first link pivotally supported on the head; a second link pivotally supported on a distal end of the first link; a first change mechanism that changes an angle of the first link to a central axis of the head; and a second change mechanism that changes an angle of the second link to the first link.