Pipe Threading Support Clamp With Reaction Arm for Kickback Control
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Solution Overview
Problem
Existing pipe threading and cutting devices lack ergonomic balance and adjustable clamping mechanisms, leading to reduced user control and safety, as well as inadequate handling of kickback displacement, which affects operational efficiency and accuracy.
Innovation Solution
A powered thread forming system with a tool housing, cutting head, support device, and motor control system that includes a clamping mechanism with adjustable brackets, a reaction arm, and a biasing device to secure the workpiece and inhibit tool rotation, along with a motion sensor to control the motor and prevent kickback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a powered pipe threading or cutting device is used, then productivity is improved, but ergonomic balance and user control deteriorate
Solution Approach 1:
The device is divided into separate functional components: a powered cutting head assembly and a separate support device with clamping mechanism. This segmentation allows the heavy motorized components to be balanced separately from the workpiece support, improving overall ergonomics while maintaining high-speed cutting capability
Solution Approach 2:
The support device replicates the function of manual positioning and clamping that would otherwise be performed by the operator's hands and body, transferring the physical control burden from the operator to the mechanical support system, thereby improving ease of operation while maintaining productivity
2Adaptability or versatility
If a fixed clamping mechanism is used, then device complexity is reduced, but adaptability to different workpiece sizes deteriorates
Solution Approach 1:
The clamping mechanism employs movable support brackets with adjustable positions along the support arm, allowing dynamic adaptation to different workpiece diameters and lengths. The brackets can be repositioned and locked at various locations, providing versatility without requiring a completely different device for each workpiece size
Solution Approach 2:
The support device is designed as a universal fixture that can accommodate multiple workpiece sizes through adjustable clamping positions and a reaction arm that adapts to different tool configurations, eliminating the need for multiple specialized fixtures and reducing overall system complexity
3Manufacturing precision
If the cutting head is held firmly against the workpiece, then manufacturing precision is improved, but kickback displacement increases
Solution Approach 1:
The support device acts as an intermediary between the workpiece and the cutting head, providing stable workpiece positioning and reaction force absorption. The reaction arm specifically serves as a mediator to absorb and redirect kickback forces, allowing the cutting head to maintain firm contact with the workpiece for precision while preventing harmful displacement
Solution Approach 2:
The reaction arm is pre-positioned and spring-loaded to provide counteracting force against kickback before it occurs. This preliminary anti-action neutralizes the harmful displacement effect, allowing the cutting head to apply sufficient force for accurate thread formation without experiencing uncontrolled movement
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 enhances user control and safety by providing ergonomic balance, secure clamping, and effective kickback prevention, allowing for precise and efficient threading or cutting operations across various pipe sizes.
Implementation Method 1
a biasing device including a biasing arm having a first end portion thereof moveably coupled to the clamping device, the biasing device being configured to selectively engage the cutting head so as to bias the cutting head along the longitudinal axis
Implementation Method 2
The over center latch may include a latch handle, a first pivot pin rotatably coupling the latch handle to the upper support bracket, a link, a second pivot pin rotatably coupling a first end of the link to the latch handle, and a third pivot pin rotatably coupling a second end of the link to the lower support bracket
Data Source
AI summary
A modification system for the modification of elongated pieces of stock may include a powered tool for modifying, or altering the piece of elongated stock, and a support device for supporting a position of the elongated stock relative to the powered tool. An arrangement of the components of the powered tool may provide for ergonomic balance of the powered tool. The support device may include a clamping device that clamps, or holds the elongated stock, and an adjustment device that adjusts a position of the clamping device based on a size of the elongated stock. The support device may include a latching device that maintains the position of the clamping device relative to the stock. A reaction arm may inhibit rotation of the tool relative to the stock during operation. A biasing device may provide for application of an axial biasing force on the stock, to initiate operation.