Mandrel Holder for Pipe Cutter Bracket
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pipe cutters lack a practical and cost-effective mandrel holder solution for stabilizing thin pipes during cutting, often requiring improvised methods like adhesive tape, and struggle with cutting short or small pieces without deforming the pipe.
Innovation Solution
A mandrel holder with a coupling portion that fits around the C-shaped bracket of a pipe cutter, an outer longitudinal portion, and an inner longitudinal portion that supports a rotatable mandrel, allowing for secure attachment and guiding the pipe without clamping, enabling easy cutting of thin pipes and short pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mandrel is inserted for stabilizing thin pipes during cutting, then cutting stability and precision are improved, but the mandrel may slide out during handling requiring additional fixing measures
Solution Approach 1:
The invention introduces a mandrel holder as an intermediary component between the mandrel and the pipe cutter. This holder includes a coupling portion that fits onto the pipe cutter's C-shaped bracket and an inner longitudinal portion that holds the mandrel. The intermediary structure provides both secure mandrel retention and easy attachment/detachment from the pipe cutter, resolving the contradiction between stability and handling convenience.
2Reliability
If adhesive tape is used to fix the mandrel, then the mandrel is prevented from sliding out, but the solution becomes improvised and less reliable
Solution Approach 1:
The mandrel holder is designed to be self-retaining through its structural features. The inner longitudinal portion has a configuration that automatically secures the mandrel in place through friction and geometric constraints, eliminating the need for external fixing materials like adhesive tape. The holder attaches to the pipe cutter via a coupling portion that engages with the C-shaped bracket, providing a permanent and reliable solution.
3Reliability
If the pipe is clamped for cutting, then cutting stability is improved, but the pipe may be deformed or scratched
Solution Approach 1:
The mandrel acts as an intermediary support inside the pipe, providing cutting stability from within rather than clamping from outside. The mandrel holder secures this internal mandrel, allowing the pipe to be supported and stabilized during cutting without external clamps that could cause deformation or scratches to the pipe surface.
4Adaptability or versatility
If a mandrel holder accessory is designed for existing pipe cutters, then compatibility and cost-effectiveness are improved, but the device complexity increases
Solution Approach 1:
The coupling portion of the mandrel holder is designed with a universal interface that fits onto the C-shaped bracket of existing pipe cutters. This universal design allows the same mandrel holder accessory to be used with different pipe cutter models, achieving adaptability without requiring complex customizations for each specific pipe cutter type.
Data Source
AI summary
The invention refers to a mandrel holder for a pipe cutter having a nearly C-shaped bracket, which supports counter-pressure rollers on one end and is connected, at the other end, to a longitudinal handle containing an adjustment device carrying a cutting wheel, these components defining a tool plane through which a vertical axis passes, which extends between and axially parallel to the counter-pressure rollers and the cutting wheel. The tool plane contains the cutting point of the cutting wheel. The mandrel holder contains a coupling portion designed to radially and axially encompass an arc-shaped portion of the C-shaped bracket, an outer longitudinal portion extending from the coupling portion axially parallel to the vertical axis up to an end piece, and an inner longitudinal portion which extends from the end piece along the vertical axis back approximately to the tool plane and has a rotatable mandrel.