Method and device for calibrating longitudinal welding seam of steel pipe

A correction method and steel pipe technology, which are applied in the field of electro-hydraulic correction methods and their devices, can solve problems such as inability to meet fast and accurate corrections, non-compliance with working position requirements, etc.

Active Publication Date: 2011-10-12
彭智祥
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the steel pipe is manufactured by the horizontal mechanical assembly welding process, the steel pipe cannot be moved but can be rotated. The aforementioned correction methods and devices do not meet the requirements of its working position, and at the same time cannot meet the requirements of its fast and accurate correction.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for calibrating longitudinal welding seam of steel pipe
  • Method and device for calibrating longitudinal welding seam of steel pipe
  • Method and device for calibrating longitudinal welding seam of steel pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: as figure 1 A correction frame shown is composed of a horizontally placed U-shaped frame 1, a movable pull plate 2, an adjustment backing plate 3, a hydraulic jack 4 and an electric pump station 5 thereof. The U-shaped frame includes an upper beam 6, a lower beam 7, a column 8 and a horizontal track 9. The top surface of the lower beam 7 is a concave groove, and the open end of the U-shaped frame has a pin shaft 10 connected to a movable pull plate, and the pin shaft 10 For fixed or telescopic type, the telescopic pin is installed in the pin hole 11 of the beam, and the hydraulic jack 4 is installed between the upper beam 6 and the lower beam 7 of the U-shaped frame 1, and its horizontal track 9 As a support and can move longitudinally, the hydraulic jack 4 is a manual mode, and the hydraulic jack 4 and the electric pump station 5 are split structures. The movable pull plate 2 is installed on the open end of the U-shaped frame 1. There are two pin holes o...

Embodiment 2

[0015] Embodiment 2: as Figure 5 A correction frame shown is composed of a horizontally placed U-shaped frame 1, a movable pull plate 2, an adjustment backing plate 3, a hydraulic jack 4 and an electric pump station 5 thereof. The U-shaped frame includes an upper beam 6, a lower beam 7, a column 8 and a horizontal track 9. The top surface of the lower beam 7 is a concave groove, and the open end of the U-shaped frame has a pin shaft 10 connected to a movable pull plate, and the pin shaft 10 It is fixed or telescopic, the telescopic pin is installed in the pin hole 11 of the beam, the hydraulic jack 4 is installed between the upper beam and the lower beam of the U-shaped frame 1, and its horizontal track 9 is used as a support And can move longitudinally, the movement of the hydraulic jack 4 can be driven by the electric screw nut 12 or the trolley driven by the motor reduction gear, the movable pull plate 2 is installed on the open end of the U-shaped frame 1, and the movable...

Embodiment 3

[0017] Embodiment 3: as Figure 4 A calibration frame with an automatic calibration procedure shown is composed of a horizontally placed U-shaped frame 1 , a movable pull plate 2 , an adjustment backing plate 3 , a hydraulic jack 4 and its electric pump station 5 . The U-shaped frame includes an upper beam 6, a lower beam 7, a column 8 and a horizontal track 9. The top surface of the lower beam 7 is a concave groove, and the open end of the U-shaped frame has a pin shaft 10 connected to a movable pull plate, and the pin shaft 10 It is fixed or telescopic, the telescopic pin is installed in the pin hole 11 of the beam, the hydraulic jack 4 is installed between the upper beam and the lower beam of the U-shaped frame 1, and its horizontal track 9 is used as a support And can move vertically, the movement of the hydraulic jack 4 is driven by the electric screw nut 12 or the trolley driven by the motor reduction gear, the movable pull plate 2 is installed on the open end of the U-s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an electric hydraulic calibration method and device of a steel pipe, which are used for the cold pressing of the steel pipe or a steel plate in a horizontal state. In the invention, a simple mechanical structure is realized, and an electrical control system with higher automation degree is configured so as to solve the technical problem and reduce manual repeated labor compared with the prior art, and therefore, operation is very easy and convenient and the manufacturing quality of the steel pipe is easier to ensure; a calibrated mount is conveniently and horizontally moved under the assistance of a crane or a rail transport dolly to carry out the cold pressing on the steel pipe or the steel plate inside a U-shaped frame with locked height by using a lifting jack in a subsection or multipoint line connection way, and therefore the calibration or arc pressing of a longitudinal welding seam of a steel plate or steel pipe structure with certain length is realized;and the integral operation procedure can be easily completed by only needing one common machine operator in the field.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and relates to an electro-hydraulic correction method and device for the longitudinal seam of a steel pipe in a horizontal state, which are used for cold pressing of a steel pipe or steel plate of a certain length. Background technique [0002] In the process of manufacturing pressure vessels or steel pipes, it is usually necessary to cold-press the steel plate. For example, before rolling the plate, use a large press to bend the end of the steel plate, and then send it to the plate rolling machine to be rolled into tiles with a certain arc. . After the tiles are welded into a steel pipe structure, there may be deformation due to longitudinal seam welding, especially when submerged arc welding is used for fast welding, it is often necessary to correct the arc of the part where the deformation exceeds the standard. There are two existing correction methods, one is to hoist the steel pipe t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/10B21D1/00
Inventor 彭智祥
Owner 彭智祥
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap