A circular seam root cleaning device, root cleaning mechanism and root cleaning method

A technology of root cleaning and annular seam, which is applied to the parts of grinding machine tools, machine tools suitable for grinding the edge of workpieces, metal processing equipment, etc. The problem of low root cleaning efficiency and other problems can achieve the effect of high root cleaning efficiency, high pass rate, and improved grinding stability.

Active Publication Date: 2019-02-12
CRRC YANGTZE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the technical problems of low efficiency of manual grinding and root cleaning, irregular groove after root cleaning, and unqualified reverse weld bead easily by providing a circular seam root cleaning device, a root cleaning mechanism and a root cleaning method

Method used

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  • A circular seam root cleaning device, root cleaning mechanism and root cleaning method
  • A circular seam root cleaning device, root cleaning mechanism and root cleaning method
  • A circular seam root cleaning device, root cleaning mechanism and root cleaning method

Examples

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Embodiment 1

[0072] A circular seam cleaning device, used in conjunction with a roller frame, is used to clean the circular seam of a tank, such as figure 1 and figure 2 As shown, the root clearing device includes: a mobile car 2 and a root clearing mechanism obliquely fixed on the mobile car 2; the root clearing mechanism includes a fixed plate 1 obliquely fixed on the fixed slope 23 of the mobile car 2; Specifically, the angle between the fixed slope 23 and the horizontal plane is 45°, so that the root cleaning mechanism is inclined at 45° to the horizontal plane. Two slide bars 5 are fixed on the fixed plate 1, and the tops of the two slide bars 5 are connected by a support base 6, and an air cylinder 3 is also fixed on the fixed plate 1, and the air cylinder 3 has a piston rod 4, so The piston rod 4 is connected with the support base 6, and the support base 6 is connected with the roller 7; the support base 6 is provided with a laser pointer for positioning the annular seam; Connect...

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Abstract

The invention discloses a circular seam back gouging device, a back gouging mechanism and a back gouging method, and belongs to the technical field of welding. The back gouging device comprises a mobile car and a back gouging mechanism aslant fixed on the mobile car, wherein the back gouging mechanism includes a fixed plate aslant fixed on the mobile car, a jacking device fixed with the fixed plate, a positioning part for positioning a circular seam and connected with the jacking device, a backup wheel connected with the jacking device and driven by the jacking device to automatically lean against the outer wall of a tank body, a lead screw connected with the jacking device, and a polishing machine connected with the lead screw; and the lead screw adjusts the polishing depth, and pushes the polishing machine to perform back gouging for the circular seam. During back gouging, the positioning part positions the circular seam to back gouging; the jacking device drives the backup wheel to lean against the outer wall of the tank body to guide movement of the polishing machine; the lead screw adjusts and controls the polishing depth; and compared with manual polishing, the circular seam back gouging device greatly improves the polishing efficiency and the back gouging groove consistency.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a root cleaning device, a root cleaning mechanism and a root cleaning method for circular seams. Background technique [0002] At present, the girth seam of the tank body of the pressure vessel is a Class B weld, and the welding joint coefficient is 1.0. Radiographic testing or recordable ultrasonic testing is carried out. The radiographic testing is qualified if it reaches Class II or above, and the ultrasonic testing is qualified if it reaches Class I or above. Therefore, it must Full penetration. To obtain a full penetration girth, root cleaning is generally required. At present, most of the roots are cleaned by manual grinding, and the production efficiency is low. After the root is cleaned, the groove is irregular, and the reverse weld bead is prone to failure. Therefore it is particularly important to find a method to effectively solve the root cleaning of the tank girth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B9/04B24B27/00B24B49/00B24B49/12B24B41/00
CPCB24B9/04B24B27/0007B24B41/00B24B49/00B24B49/12
Inventor 林耀华冯存义武永亮刘华学焦辉
Owner CRRC YANGTZE CO LTD
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