Pipe Chamfering Roller Structure for Variable Diameters
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Solution Overview
Problem
Chamfering the cutting surfaces of large-diameter pipes installed in elevated locations is difficult and inefficient due to the challenges of manual operation and varying diameters, leading to poor work environment and reduced worker efficiency.
Innovation Solution
A chamfering apparatus with a vertical plate and support plate configuration, featuring an inscribing roller and circumscribing rollers that adhere to the pipe, utilizing a motor-driven gear box to apply rotational force and adjust to different diameters, allowing the apparatus to automatically move along the pipe's surface for precise chamfering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a portable automatic chamfering apparatus is installed on the cutting surfaces of pipes to automate chamfering, then chamfering automation is improved, but the apparatus cannot adapt to pipes with various diameters and requires multiple apparatuses of different sizes
Solution Approach 1:
The apparatus employs adjustable support legs with height adjustment mechanisms that can be extended or retracted to match different pipe diameters. The circumscribing rollers are mounted on these adjustable support legs, allowing the entire apparatus to dynamically adapt its size to accommodate pipes ranging from small to large diameters, eliminating the need for multiple fixed-size apparatuses.
Solution Approach 2:
The apparatus is designed as a universal chamfering device that can process pipes of various diameters through its adjustable structure. The support legs can be adjusted to different heights, and the circumscribing rollers can be repositioned along the pipe circumference, enabling a single apparatus to perform chamfering operations on pipes with different diameters, thereby achieving multi-functionality.
2Ease of operation
If manually operated portable grinders are used to chamfer pipes in elevated locations, then portability is improved, but chamfering precision and regularity deteriorate due to difficulty in maintaining consistent rotation
Solution Approach 1:
The apparatus features self-aligning circumscribing rollers that automatically conform to the pipe's outer circumference. The rollers are mounted on adjustable support legs that can be positioned to match the pipe diameter, allowing the apparatus to self-adjust and maintain consistent contact with the pipe surface throughout the chamfering operation, ensuring regular and precise chamfer angles without requiring manual intervention to maintain rotation consistency.
3Ease of operation
If manually rotating a chamfering apparatus along large diameter pipes is performed, then portability is maintained, but rotation difficulty and time consumption increase significantly
Solution Approach 1:
The apparatus replaces the manual rotation mechanism with an automated motor-driven system. The motor is mounted on the apparatus and drives the circumscribing rollers to rotate automatically along the pipe circumference. This mechanical substitution eliminates the need for workers to manually rotate the apparatus, significantly reducing rotation difficulty and increasing chamfering speed, especially for large diameter pipes where manual rotation becomes extremely difficult and time-consuming.
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
Enables automatic and efficient chamfering of pipes with various diameters, including large ones, improving worker safety and efficiency by allowing the apparatus to rotate along the pipe's surface, ensuring consistent chamfer angles and reducing manual labor.
Implementation Method 1
an inscribing roller whose pressing force is regulated by a spring and which is closely adhered to the inside of the pipe
Implementation Method 2
circumscribing rollers, which are closely adhered to the outside of the pipe... and allow a rotational force of a motor... to be decelerated in the gear box and then to be transmitted
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention relates to an automatic movable machine for chamfering a pipe and a metal sheet, the movable machine automatically chamfers the edge portions of the pipe and the metal sheet so as to weld the cut pipe and metal sheet. The present invention is configured such that: a vertical plate and a support plate are fixed, in a perpendicular direction to each other, to a semicircular chamfering angle adjusting plate fixed to a head of the movable chamfering machine; a moving body is provided at the vertical plate on the inside of the pipe or the lower side of the metal sheet, and equipped with an internal roller of which pressing force is regulated by a spring and which comes into close contact with the inside of the pipe or the lower side of the metal sheet; the support plate has a fixing bolt provided at the center thereof and guides provided at both sides thereof; a fixing plate to which the fixing bolt and the guides are inserted is provided to the support plate, and fixedly provided at the front of a gear box; and external rollers, which come into close contact with the outside of the pipe or the upper side of the metal sheet at the left and right sides of the fixing plate, are provided at the front of the gear box, and allow the speed of the rotational force of a motor, which is provided at the back side of the gear box, to be speed=reduced in the gear box and transmit the speed-reduced rotational force.