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An offline detection type automatic welding method for large and complex box-shaped structural parts

A box-shaped structure and automatic welding technology, which is applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of poor welding strength and achieve the effect of eliminating the phenomenon of welding seam forming quality

Active Publication Date: 2017-03-08
SHANXI PINGYANG IND MACHINERY
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Problems solved by technology

[0007] In order to solve the problem of poor welding strength in the manual teaching method of existing large and complex box-shaped structural parts, the present invention provides an off-line detection automatic welding method for large and complex box-shaped structural parts

Method used

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  • An offline detection type automatic welding method for large and complex box-shaped structural parts
  • An offline detection type automatic welding method for large and complex box-shaped structural parts
  • An offline detection type automatic welding method for large and complex box-shaped structural parts

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Embodiment Construction

[0015] An off-line detection type automatic welding method for large and complex box-shaped structural parts, which adopts the following steps: a. According to the production drawings of large and complex box-shaped structural parts 19, the flat plate 1, backing plate 2, and curved plate 3 contained in it are , pasting plate 4, straight plate 5, cover plate 6 and functional parts 7 are assembled and formed; b, the large and complex box-shaped structural part 19 assembled and formed is placed on the automatic measurement station 20, and the three-coordinate measurement on the top of the automatic measurement station 20 The system 13 grabs the contact-type continuous measuring instrument 18 from the measuring instrument storage library 15 through the quick-change joint 14, constructs the actual workpiece Cartesian coordinate system 8 based on the flat plate 1, and constructs a large and complex box-shaped structural member 19 in three-dimensional directions. Select a feature poin...

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Abstract

The invention specifically discloses an offline detecting type automatic welding method used for a large-scale complex box type structural member. The problem of relatively poor welding intensity of an existing large-scale complex box type structural member which adopts a manual teaching mode is solved. The large-scale complex box type structural member is assembled and shaped according to a production drawing of the large-scale complex box type structural member; a three-coordinates measuring system is adopted to measure, record and sequentially store the track of each welding seam; all the welding seam information formed by detection of the three-coordinates measuring system is stored in an automatic welding equipment control center and is numbered; the welding seam information is taken based on the number of a work-piece for automatic welding until the welding of all the welding seams of the structural member is finished. The offline detecting type automatic welding method used for the large-scale complex box type structural member is suitable for welding in small and narrow space of box type square grids and uniform tracking requirements on multiple welding seam forms, and completely eradicates the phenomenon that the discontinuity point similar fitting track of manual teaching cannot guarantee the welding seam forming quality.

Description

technical field [0001] The invention relates to an automatic welding method for structural parts, in particular to an off-line detection automatic welding method for large and complex box-shaped structural parts. Background technique [0002] The medium-thick plate structural parts with grid-shaped structural characteristics composed of special-shaped curved plates, straight plates, pasted plates, backing plates, cover plates and various functional moldings are called large complex box-shaped structural parts, which are usually composed of The welding process is complete. Due to the existence of special-shaped structures, the forming process includes trimming and matching processing, which causes errors in assembly and changes in the position and size of the weld seam. When automatic welding is used, the seam trajectory needs to be guided and tracked in advance. [0003] The existing welding seam tracking technology belongs to the online detection method, which is divided i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/127B23K9/02
CPCB23K9/02B23K9/127
Inventor 庄国顺闫云飞毛明赵忠民苏培发
Owner SHANXI PINGYANG IND MACHINERY
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