Portable Pipe Chamfering Apparatus with Adjustable Rollers
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Solution Overview
Problem
Existing pipe chamfering technologies face difficulties in efficiently chamfering pipes of various diameters, especially in elevated locations, due to the need for multiple apparatuses and reduced work efficiency and safety when using portable grinders or automatic chamfering tools.
Innovation Solution
A portable pipe outer diameter-chamfering apparatus with circumscribing and inscribing rollers that rotate in one direction using one-way clutches, allowing for adjustable height and secure contact with pipes of any diameter, and a knife-blade system for precise chamfering, enabling safe and efficient chamfering regardless of pipe diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable grinder with free rotation and angle adjustment is used for chamfering, then the apparatus can be easily operated, but the chamfered angle is not regular and work efficiency decreases
Solution Approach 1:
The invention changes the operational parameters by fixing the rotation axis and limiting rotation to a single direction, transforming the grinder from a freely adjustable tool to a constrained tool that achieves regular chamfered angles through controlled motion parameters
Solution Approach 2:
The invention introduces a guide structure as an intermediary between the operator and the grinder, which mediates the motion to ensure the grinder rotates only in one direction along the pipe surface, thereby guaranteeing regular chamfered angles
2Extent of automation
If an automatic chamfering apparatus is installed on the cutting surface of pipes, then chamfering work can be automated, but several chamfering apparatuses with various sizes must be provided depending on pipe diameters
Solution Approach 1:
The invention creates a universal chamfering apparatus that can handle pipes of various diameters by using adjustable support rollers and a guide structure that adapts to different pipe sizes, eliminating the need for multiple specialized apparatuses
Solution Approach 2:
The invention incorporates adjustable and movable components such as support rollers and guide structures that can dynamically adapt to different pipe diameters, allowing the same apparatus to serve multiple functions across various pipe sizes
3Ease of operation
If chamfering work is performed at elevated places using portable tools, then the work can be accessed, but the working environment becomes poor and work safety decreases
Solution Approach 1:
The invention enables the chamfering apparatus to be self-supported on the pipe itself through guide structures and support rollers that attach to or rest on the pipe, eliminating the need for external support structures that would be difficult to deploy at elevated locations
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 apparatus ensures precise and safe chamfering of pipes of any diameter, improving work efficiency and safety by allowing one-directional rotation and easy portability, particularly suitable for use in elevated environments during plant piping work.
Implementation Method 1
the circumscribing rollers and the inscribing roller rotate in only one direction by the use of one-way clutches
Implementation Method 2
the inscribing roller maintains a state of being in close contact with the inside of the pipe due to the tension of the spring
Data Source
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AI summary
[Summary] The present invention relates to a portable pipe outer diameter-chamfering apparatus with improved weldability characterized in that a vertical fixing plate is fixed to the outside of the vertical plate, a horizontal fixing plate is fixed in an orthogonal direction to the tip of the vertical fixing plate, a shaped link is coupled to move upward and downward along the vertical fixing plate, a circumscribing roller which is in close contact with an outside of a pipe are installed on the tip of the shaped link on either side, the shaped link moves up and down along the vertical fixing plate by a circumscribing roller adjustment screw installed on the horizontal fixing plate, a moving body is installed in the horizontal fixing plate, the moving body moves up and down by an inscribing roller adjustment screw installed on the horizontal fixing plate, and an inscribing roller which is in close contact with an inside of the pipe and a pressing force of which is adjusted by a spring is installed on the moving body.