Pipe Cutting Jig Assembly for Consistent Angular Chamfers
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Solution Overview
Problem
Conventional methods for cutting pipes at angles, such as building fences with recycled pipes, result in inconsistent shapes due to the difficulty in repeatedly matching the same chamfers.
Innovation Solution
A fixture comprising a jig assembly with a frame structure and a cutting element, where the cutting element is oriented at an angular position relative to the pipe's vertical axis, allowing for consistent and repeatable angular cuts through a combination of adjustable collars and a tiltable/rotatable mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional torch cutting methods are used for pipes, then the cutting process is simple and quick, but the chamfer consistency and shape precision are poor
Solution Approach 1:
A jig assembly is introduced as an intermediary device between the pipe and cutting element. The jig assembly includes a frame structure with receiving regions that hold the cutting element at a predetermined angle, and a collar assembly that secures the jig to the pipe. This intermediary fixture ensures consistent chamfer angles by mechanically guiding the cutting element's orientation.
Solution Approach 2:
The cutting element is pre-positioned at the correct angular orientation within the jig assembly before the cutting operation begins. The jig assembly is designed with the cutting element already secured at the desired chamfer angle, eliminating the need for angle measurement and adjustment during the actual cutting process.
2Reliability
If manual torch cutting is used for pipes, then the equipment required is simple, but the repeatability of chamfers across multiple pipes is poor
Solution Approach 1:
The cutting system is segmented into distinct functional components: a jig assembly with a frame structure for holding the cutting element, a collar assembly for securing the jig to the pipe, and the cutting element itself. This segmentation allows each component to be optimized for its specific function and enables easy replacement or adjustment of individual parts.
Solution Approach 2:
The jig assembly allows for changing the angular parameter of the cutting element relative to the pipe axis. By adjusting the orientation of the cutting element within the jig or selecting different jig configurations, consistent chamfer angles can be achieved across multiple cutting operations on different pipes.
Data Source
AI summary
A fixture includes a pipe having a vertical axis that is coaxial with a center of the pipe, a cutting element having a cutting blade, and a jig assembly coupled to the cutting element and arranged to orient the cutting blade at an angular orientation relative to the vertical axis of the pipe. Related methods and components are also provided.