Robotic Cutting Element Positioning for Earth-Boring Drill Bits
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Solution Overview
Problem
The manual process of attaching and positioning cutting elements on earth-boring rotary drill bits is labor-intensive and inefficient, often requiring two persons to handle the cutting elements and brazing material, which can be hazardous and time-consuming.
Innovation Solution
A robotic system is employed to position and rotate cutting elements within cutting element pockets on earth-boring tools, using a robotic tool body handling system, a robotic cutter handling system, and a robotic cutter bonding system to automate the attachment process, including the use of a power-driven device for rotation and a dispensing device for bonding material application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual process is used to attach and position cutting elements, then flexibility and simplicity are maintained, but labor intensity increases and precision decreases
Solution Approach 1:
The system enables automated self-positioning of cutting elements through robotic manipulation, where the cutting element is automatically oriented and placed in the pocket without requiring manual intervention for each positioning step, reducing labor intensity while maintaining operational simplicity
Solution Approach 2:
Manual mechanical operations are replaced with an automated robotic system that uses computer-controlled mechanisms to position and attach cutting elements, reducing the need for human labor while managing the complexity through automation
2Productivity
If manual brazing process is used with two persons, then adaptability is maintained, but time consumption increases and safety decreases
Solution Approach 1:
Multiple manual operations (positioning, heating, brazing material application) previously performed by two persons are merged into a single integrated robotic system that executes all steps sequentially, increasing productivity while consolidating system complexity into one automated unit
Solution Approach 2:
The robotic system pre-positions the cutting element and prepares the brazing interface before applying heat and brazing material, ensuring proper alignment and readiness in advance, which speeds up the overall attachment process while managing complexity through structured automation
3Manufacturing precision
If automated robotic system is used to position cutting elements, then precision and safety are improved, but device complexity increases
Solution Approach 1:
Manual positioning operations are replaced with a robotic system that uses computer-controlled actuators and sensors to achieve precise positioning of cutting elements, significantly improving manufacturing precision while introducing automation complexity that is managed through control software
Solution Approach 2:
The robotic system incorporates sensors and control mechanisms that provide feedback on the position and orientation of cutting elements, allowing for real-time adjustments to achieve precise placement, which improves positioning accuracy while managing complexity through closed-loop control
Data Source
AI summary
Methods include one or more of robotically positioning a cutting element on an earth-boring tool, using a power-driven device to move a cutting element on an earth-boring tool, and robotically applying a bonding material for attaching a cutting element to an earth-boring tool. Robotic systems are used to robotically position a cutting element on an earth-boring tool. Systems for orienting a cutting element relative to a tool body include a power-driven device for moving a cutting element on or adjacent the tool body. Systems for positioning and orienting a cutting element on an earth-boring tool include such a power-driven device and a robot for carrying a cutting element. Systems for attaching a cutting element to an earth-boring tool include a robot carrying a torch for heating at least one of a cutting element, a tool body, and a bonding material.