Pipe Tool Support with Worm Gear for Rapid Retraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pipe machining apparatuses require excessive effort and time to retract the cutting device from the advanced cutting position due to the small increments used during both the cutting and retraction processes.
Innovation Solution
A pipe machining apparatus with a tool support system that includes a rotatable feed screw and a worm gear assembly, allowing the tool to be advanced and retracted in larger increments by switching between engaged and disengaged positions of the worm gear with the feed screw, enabling quicker and less effortful retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the cutting device is advanced in small increments to cut the pipe, then the cutting precision is improved, but the retraction time increases significantly
Solution Approach 1:
The tool support system dynamically changes the increment size based on the operation phase: small increments during cutting for precision, and large increments during retraction for speed. The worm gear mechanism enables this dynamic adjustment by allowing the operator to switch between engaged (precise control) and disengaged (rapid movement) states.
Solution Approach 2:
The retraction process is segmented into two distinct phases: initial rapid retraction using large increments when the worm gear is disengaged, followed by precise positioning using small increments when the worm gear is engaged. This segmentation allows each phase to optimize for its specific requirement.
2Measurement precision
If the cutting device is advanced in small increments, then the control precision is improved, but the operator effort increases
Solution Approach 1:
The system dynamically adjusts the level of mechanical assistance provided by the worm gear based on the operation phase. During retraction, the worm gear is disengaged to allow rapid movement with minimal effort. During positioning, the worm gear is engaged to provide precise control with reduced operator effort compared to direct manual manipulation.
Solution Approach 2:
The worm gear acts as an intermediary mechanism that provides mechanical advantage during positioning operations, reducing the effort required to achieve precise control. When disengaged, it allows direct rapid movement without the complexity of gear engagement.
3Measurement precision
If the worm gear remains engaged during retraction, then the control precision is maintained, but the retraction speed decreases
Solution Approach 1:
The worm gear engagement state is dynamically changed based on the retraction phase: disengaged during initial rapid retraction to maximize speed, and engaged during final positioning to maintain precision. This dynamic state change optimizes both speed and precision at different stages.
Solution Approach 2:
The retraction process is segmented into a high-speed phase with the worm gear disengaged and a precision positioning phase with the worm gear engaged, allowing each segment to optimize for its specific requirement without compromise.
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 solution significantly reduces the time and effort required for tool retraction, enhancing the efficiency of the machining process by allowing larger incremental movements during the retraction phase.
Implementation Method 1
a worm gear movable between a first position, in which the worm gear couples with the feed screw and rotation of the worm gear in a first worm gear direction rotates the feed screw to move the tool in the first tool direction
Implementation Method 2
the feed screw is rotatable independently of the worm gear
Data Source
AI summary
Pipe machining apparatuses, tool supports, and methods of operating pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier coupled to and movable relative to the frame, and a tool support coupled to and movable with the tool carrier relative to the frame. The tool support is adapted to support a tool and move the tool in a first direction toward a pipe at a first increment and move the tool in a second direction away from the pipe at a second increment. The second increment is larger than the first increment.