KR-20260065381-A - Apparatus and method for supporting correction of oversized multi-shaped pipe fittings

Abstract

An apparatus and method for supporting the correction of extra-large multi-shaped pipe fittings are disclosed. The pipe fitting correction apparatus includes a preprocessing unit that detects the center point of a joint among the pipe fittings; a roundness measurement unit that calculates a target roundness of the pipe fittings using the center point, divides the calculated target roundness into a plurality of local regions, and calculates the roundness difference by comparing the divided target roundness with the actual roundness of the joint; and a roundness correction unit that corrects the joint so that the actual roundness converges to the target roundness based on the calculated roundness difference.

Inventors

• 김주현
• 김경호
• 손동섭
• 권태웅
• 정의정
• 김현진
• 김민규

Assignees

• 한국로봇융합연구원

Dates

Publication Date

20260508

Application Date

20241101

Claims (8)

1. In a pipe fitting correction device that automatically corrects the roundness of joints of extra-large pipe fittings, A preprocessing unit for detecting the center point of a joint among the above pipe fittings; A roundness measuring unit that calculates a target roundness of the pipe fittings using the center point, divides the calculated target roundness into a plurality of local regions, and calculates a roundness difference by comparing the divided target roundness with the actual roundness of the joint; and A roundness correction unit that corrects the joint so that the actual roundness converges to the target roundness based on the above-calculated roundness difference; A pipe fittings calibration device including
2. In Article 1, The above roundness measuring unit is, A pipe fitting correction device characterized by generating a circular trajectory corresponding to the set size of the pipe fitting based on the center point and calculating the target roundness.
3. In Paragraph 2, The above roundness measuring unit is, A pipe fitting correction device characterized by dividing the local area by considering the working radius of a roundness correction tool that performs the correction based on the circular trajectory.
4. In Article 1, The above roundness measuring unit is, A pipe fitting calibration device characterized by synthesizing each of the roundness data measured for each of the above local regions to calculate the actual roundness.
5. In Article 1, The above roundness correction unit is, A pipe fitting correction device characterized by controlling the correction to be performed starting from the area among the plurality of local areas where the actual roundness is closer to the center point than the target roundness.
6. In Article 1, The above roundness correction unit is, A pipe fitting correction device characterized by setting a working correction force for correction by considering at least one of the material, thickness, and difference in roundness by local area of the pipe fitting.
7. In Article 1, The above roundness correction unit is, A pipe fitting correction device characterized by controlling the correction to be repeated until the actual roundness converges to the target roundness.
8. A method for correcting pipe fittings performed by a pipe fitting correction device that automatically corrects the roundness of joints of extra-large pipe fittings, wherein A step of detecting the center point of the joint among the above pipe fittings; A step of calculating a target roundness of the pipe fittings using the center point, dividing the calculated target roundness into a plurality of local regions, and calculating a difference in roundness by comparing the divided target roundness with the actual roundness of the joint; and A step of correcting the joint so that the actual roundness converges to the target roundness based on the calculated difference in roundness; A method for calibrating pipe fittings including

Description

Apparatus and method for supporting correction of oversized multi-shaped pipe fittings The present invention is a result of the support provided by the Busan Metropolitan City Market Creation Intelligent Robot Utilization and Diffusion Project, and relates to a pipe fitting correction technology. More specifically, it relates to an apparatus and method for supporting the correction of extra-large multi-shaped pipe fittings, which automates the correction of the roundness of joints of extra-large multi-shaped pipe fittings. Pipe fittings are products used to change the direction and connect pipes that contain liquids or gases. The manufacturing process for these pipe fittings involves a multi-product, small-batch production system with over 50,000 types of sizes and shapes, as the downstream industries (LNG vessels, oil pipelines, offshore and onshore plants, nuclear power plants, etc.) are diverse and the designs for each plant differ. The calibration process for extra-large pipe fittings of 100 inches or more is the most critical process for satisfying the quality requirements of customers in the upstream industry, but currently, precise numerical calibration of the joints (both ends) is performed manually. As a result, the calibration process for pipe fittings is a process with a high possibility of errors and increased worker fatigue due to repetitive measurement and calibration work. Therefore, technology is required to automate the calibration process of these extra-large pipe fittings, thereby ensuring worker safety and operational accuracy. FIG. 1 is a configuration diagram for explaining a pipe fittings correction system according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a pipe fittings correction device according to an embodiment of the present invention. FIG. 3 is a schematic diagram illustrating the operation of a pipe fitting correction device according to an embodiment of the present invention. FIG. 4 is a block diagram for explaining a control unit according to an embodiment of the present invention. FIG. 5 is a drawing for explaining the center recognition of pipe fittings according to an embodiment of the present invention. FIG. 6 is a drawing for explaining the measurement of the roundness of pipe fittings according to an embodiment of the present invention. FIG. 7 is a drawing for explaining the correction of the roundness of pipe fittings according to an embodiment of the present invention. FIG. 8 is a drawing illustrating the completed state of correction of pipe fittings according to an embodiment of the present invention. FIG. 9 is a flowchart illustrating a method for correcting pipe fittings according to an embodiment of the present invention. FIG. 10 is a block diagram illustrating a computing device according to an embodiment of the present invention. Embodiments of the present invention are described below with reference to the attached drawings so that those skilled in the art can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals. In this specification and drawings (hereinafter referred to as the 'this specification'), redundant descriptions of identical components are omitted. Furthermore, when a component is described in this specification as being 'connected' or 'connected' to another component, it should be understood that it may be directly connected to or connected to the other component, or that there may be other components in between. On the other hand, when a component is described in this specification as being 'directly connected' or 'directly connected' to another component, it should be understood that there are no other components in between. Furthermore, the terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. Additionally, in this specification, singular expressions may include plural expressions unless the context clearly indicates otherwise. Furthermore, in this specification, terms such as 'comprising' or 'having' are intended merely to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Additionally, in this specification, the term "and/or" includes a combination of the plurality of described items or any of the plurality of described items. In this specification, "A or B" may include "A," "B," or "both A and B." In addition, detailed descriptions of known function