A Method of Quickly Testing Positioning and Closing Accuracy in Shipbuilding Process
A precise and fast technology, applied in ship components, ship construction, ships, etc., can solve problems such as misalignment of rib plates, misalignment of side girders of wall piers, cutting and repairing, etc., to improve accuracy and speed and reduce cutting and repairing. The effect of saving workload and hoisting time
Active Publication Date: 2011-12-07
DALIAN SHIPBUILDING IND
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Problems solved by technology
After the transverse wall segment and longitudinal wall segment are positioned and closed, the inner structure of the transverse wall pier and the longitudinal frame of the bottom segment, the longitudinal girder and the inner structure of the longitudinal wall pier and the ribs of the bottom segment often appear out of alignment, and the pier side plate and the bottom The misalignment of segmental longitudinal trusses caused a large number of cutting and repairing phenomena
One of the reasons is that there is a lack of detection of installation inspection lines and angle templates during segmental production, and the lack of segmental positioning reference lines in vertical and horizontal segmental positioning.
Method used
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[0030] Such as figure 1 A typical schematic cross-section of the cargo hold area shown.
[0031] Usually, in the process of shipbuilding, before closing, the plates or trusses to be closed are pre-marked on the plate-to-plate, plate-to-truss, and truss-to-truss connection positions, or at least pre-determined that the plates or trusses will be Connect to each other based on that boundary surface or boundary line. Here, these pre-marked connection positions or boundary surfaces or boundary lines serving as connection references are referred to as "connection baselines". Method of the present invention just utilizes these " connecting base lines ", before positioning and closing up, be positioned at the side of connecting base line on plate or truss and set another " reference line " parallel to connecting base line with equidistant; Thus when positioning closes up, These "reference lines" are used to detect the accuracy of closing, and these "reference lines" can also be used...
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The invention discloses a method for quickly detecting, positioning, and closing accuracy in the shipbuilding process, which is mainly used for detecting the closing accuracy of structures and segments, and includes the following steps: before closing, pre-set on the board or truss to be closed for determining The installation position line of the closing position; before positioning and closing, set another reference line parallel to the installation position line at an equal distance on the side of the installation position line on the closed plate or truss; when positioning and closing, detect the position of the reference line positional accuracy. The present invention improves the accuracy and speed of segment production and positioning and closing through the setting and application of the reference line (inspection line), and reduces the workload of cutting and repairing. Through practical verification, such as the positioning and closure of each hull segment of the longitudinal and transverse walls, the hoisting time is saved by nearly 1 hour, and the trimming rate is reduced from 60% of the existing implementation to 20%.
Description
technical field [0001] The present invention relates to the process of positioning and closing in the shipbuilding process, and more specifically, relates to the improvement of the detection / calibration process in the process of positioning and closing. Background technique [0002] In the process of ship construction, if the baseline (inspection line) is not set in advance, it will bring difficulties to the construction of the subsequent process, which is not conducive to ensuring the accuracy and speed of the construction of the next process. During segmental fabrication, the alignment accuracy between the sloping bottom plate and the girder is often out of tolerance. After the transverse wall section and longitudinal wall section are positioned and closed, the inner structure of the transverse wall pier and the longitudinal frame of the bottom section, the longitudinal girders, the inner structure of the longitudinal wall pier and the ribs of the bottom section often appe...
Claims
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IPC IPC(8): B63B9/06
Inventor 宫照明
Owner DALIAN SHIPBUILDING IND