Welding method for fixing winch connecting plate of marine crane
A marine crane and fixed winch technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of inability to guarantee the accuracy of through-hole coaxiality and high rework rate, so as to ensure welding quality and reduce production costs. Effect
Inactive Publication Date: 2017-02-22
GUANGXI WUZHOU YUNLONG PORT & SHIP MACHINERY MFG
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a welding method for the connecting plate of the fixed winch of the marine crane, so as to solve the problem that the welding of the existing connecting plate cannot guarantee the precision requirement of the coaxiality of the through hole and the high rework rate
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Embodiment Construction
[0013] The present invention will be described in further detail below in conjunction with accompanying drawing:
[0014] Such as figure 1 The shown marine crane fixed winch includes a cylinder 6 and two connecting plates 1 arranged up and down welded on the cylinder 6, and each connecting plate 1 is evenly distributed with a plurality of raised passages. Holes, a plurality of through holes on the upper connecting plate 1 and the lower connecting plate 1 are coaxially arranged.
[0015] The welding method for fixing the winch connecting plate of this marine crane is: use such as figure 1 The connecting plate welding tool shown in the figure, the connecting plate welding tool includes two templates 2, and a plurality of positioning sleeves 3 with center holes at the same distance as the through holes of the connecting plate 1 are welded on the two templates 2 In this embodiment, two positioning mandrels 4 are installed on the center holes corresponding to the positioning slee...
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The invention discloses a welding method of jinny connection plates of a marine crane. A welding tool of the jinny connection plate is adopted, and the welding method includes the following operation steps: welding one connection plate on a barrel in a spot welding mode; placing a template on the connection plate, inserting two positioning mandrels into two through holes of the connection plate respectively, and inserting a positioning pin into one through hole of the connection plate; inserting the second connection plate provided with a temperature onto the two positioning mandrels; connecting the second connection plate and the barrel in a spot welding mode; loosening a nut, dismounting the positioning mandrels, the templates and the positioning pins, and connecting the two connection plates and the barrel through welding to finish welding of the jinny connection plates of the marine crane. Compared with the prior art, the welding method can solve the problems that existing welding of the connection plates cannot guarantee the accuracy requirement of coaxiality of the through holes and the rework efficiency is high.
Description
technical field [0001] The invention relates to the technical field of marine crane manufacturing, in particular to a welding method for fixing a winch connecting plate of a marine crane. Background technique [0002] The fixed winch of the marine crane has a cylinder and two upper and lower connecting plates welded on the cylinder. At present, in the marine crane manufacturing industry, the upper and lower connecting plates fixed by the winch are welded. Usually only one mandrel and a spacer are used to position and weld the two connecting plates. This welding method has the following problems in the production process: In this way, welding can only ensure the spacing between the upper and lower connecting plates, but cannot guarantee the coaxiality of the holes on the upper connecting plate and the through holes on the lower connecting plate Accuracy requirements, often need to rework, high rework rate, increased production costs. Contents of the invention [0003] The...
Claims
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IPC IPC(8): B23K37/04B23K11/11
CPCB23K11/11B23K37/0408
Inventor 李祥荣
Owner GUANGXI WUZHOU YUNLONG PORT & SHIP MACHINERY MFG