Counter deformation process for welding base plate of front top embedded dump truck
A built-in, dump truck technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve problems such as poor weldability, large front door and bottom plate, and hidden quality problems, and achieve the effect of novel design ideas
Active Publication Date: 2014-09-10
WUHU CIMC RUIJIANG AUTOMOBILE
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Problems solved by technology
[0003]The object of the present invention is to provide a welding anti-deformation process for the bottom plate of the front top built-in dump truck, which can effectively reduce the front door and the bottom plate in the process of the whole vehicle. The side gap is large, the weldability is poor, and there are quality problems after welding
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[0016] see figure 1 :
[0017] The anti-deformation process of welding the bottom plate of the front roof embedded dump truck includes the following steps:
[0018] (1) Design tooling, including platform 1, on which a backing plate 2 with the same length as the gap at the front end of the bottom plate is installed sliding up and down on the platform 1, and a semicircular groove 3 is opened on the backing plate 2, and the inside of the semicircular groove 3 A round steel 4 is installed, and an ejection hole 5 is opened on the platform 1 below the backing plate 2, and an ejection cylinder 6 is installed on the platform below the ejection hole 5, and the piston rod of the ejection cylinder 6 passes through the ejection hole 5, The end of the piston rod is fixed to the outer wall of the round steel 4; a positioning rod 7 is arranged at the corner of the platform 1, and a spring 8 is set on the outer casing of the positioning rod 7;
[0019] (2) Place the front of the bottom plat...
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The invention discloses a counter deformation process for welding a base plate of a front top embedded dump truck. The counter deformation process comprises the following steps of: designing a tool comprising a platform, wherein a backing plate is arranged on the upper edge of the platform in a vertically sliding way, and the space and the length of the backing plate are equal to the space and the length of a gap in the front end of a base plate; a groove is formed in the backing plate; a round steel is arranged in the groove; an ejection hole is formed in the position of the platform, which is positioned below the backing plate; an ejection oil cylinder is arranged below the ejection hole; the end part of a piston rod is fixed with the outer wall of the round steel; a positioning rod is arranged at the corner of the platform; and a spring is sleeved outside the positioning rod; placing a positive surface and a negative surface of the base plate at the upper end of the round steel; and after welding, detecting tilt amounts of two sides of the gap in the front end of the base plate and carrying out mutual offset for controlling the deformation to enable a clearance between the base plate and an embedded front door after being assembled to become smaller. According to the counter deformation process disclosed by the invention, by referencing to the difference of the welding amounts of the positive surface and the negative surface of the base plate, welding persons and the weight of the base plate are matched with the oil cylinder for controlling, so that the counter deformation adjustment is realized and the problems that clearances between the front door and front end sides of the base plate are greater and the weldability is poor in the mould assembling process of an entire vehicle can be solved.
Description
Technical field: [0001] The invention relates to the manufacturing technology of a dump truck with a built-in front door, in particular to a welding and anti-deformation process for a bottom plate of a dump truck with a built-in front roof. Background technique: [0002] The bottom plate of the front top built-in dump truck has a gap at the front end. According to the conventional welding process, the reverse side of the bottom plate is placed on the platform for welding, and the oil cylinder is used for welding. Due to the large amount of welding of the dump truck, effective welding anti-deformation control is not carried out during the welding process. , It is easy to cause the upturned deformation of the two sides of the notch at the front end. Finally, the bottom plate is flipped to the front, and during the process of assembling the whole vehicle, the gap between the front door and the two front ends of the bottom plate is relatively large (about 15-20mm at most). Due t...
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Inventor 汪春友
Owner WUHU CIMC RUIJIANG AUTOMOBILE