Automatic overhead welding system for external horizontal fillet welds between end wall and end beam of gondola car
A welding system and horizontal welding seam technology, which is applied in the automatic elevation angle welding system and welding field of the end wall and the outer horizontal welding seam of the end beam, can solve the problems such as the influence of the appearance quality of the whole vehicle, unstable welding quality, high labor intensity, etc. Good forming, flexible form, uniform weld effect
Active Publication Date: 2011-08-31
XI AN RAILWAY TRANSPORTATION EQUIP
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Problems solved by technology
In the entire railway freight car manufacturing industry, the welding of the two elevation welds of the end wall and end beam of the C70A open car has always been completed by electric welding operators in the form of manual overhead welding. The requirements are very high, and the welding efficiency is low and the labor intensity is high
Therefore, the welding quality of this weld is extremely unstable and affects the appearance quality of the vehicle
Method used
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[0018] see figure 1 , figure 2 , The automatic elevation angle welding system of the end wall and the outer horizontal weld of the end beam of the present invention includes a welding position changing device 1, a welding seam tracking device 2 and a welding operation control device 3, and the welding position changing device 1 includes the whole machine fast moving device 10, gantry Slow moving device 11 and tracking steering device 12 . The whole machine rapid movement motor 102 of the whole machine rapid movement device 10 rotates through the transmission of the worm gear reducer 103 and the sprocket chain pair 104 to drive the wheels to rotate, and the automatic elevation angle welding system The whole machine moves rapidly, and reaches the set position. Then stop the movement immediately; the rotary motion of the gantry transmission motor 112 of the gantry slow moving device 11 is driven by the bevel gear 113 to drive the lead screw 114 to rotate, and the rotating lead ...
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Abstract
The invention discloses an automatic overhead welding system for external horizontal fillet welds between an end wall and an end beam of a gondola car. The system comprises a weld tracking device; the weld tracking device comprises a mounting bracket, an angle adjustment plate, a tracking cylinder, a tracking head, a tracking wheel and a welding torch, wherein the angle adjustment plate is connected with the mounting bracket, the tracking cylinder is connected with the tracking head, and the tracking head drives the tracking wheel as well as the welding torch arranged on the tracking wheel; and the angle adjustment plate slides upwards and downwards along the mounting bracket. The automatic overhead welding system disclosed by the invention has the advantages that because of replacing artificial welding with automatic welding, the parameters of the angles of welding torches, the distances between the front ends and centers of welds, the movement velocity of the welding torch within aninterval between the arcing point and arc-receiving point of the welds, and the like can always keep correct, thereby ensuring that the forming of overhead fillet welds is good.
Description
technical field [0001] The invention relates to the welding problem of the elevation welding seam formed after the pair of end walls and end beams at both ends of the railway freight car gondola is completed, in particular to an automatic elevation angle welding system and welding method for the outer transverse weld between the end wall and the end beam. Background technique [0002] For a long time, in the manufacturing technology of C70A gondola in the entire railway freight car manufacturing industry, the welding of the 2700 mm long elevation weld formed after the end wall and end beam group is completed has been completed by manual overhead welding. The specific method is as follows: firstly, the assembled gondola body is placed horizontally on the bench of the welding station, and then the electric welding operator uses CO2 gas shielded welding to perform manual welding by means of overhead welding. In order to ensure that the elevation weld is well formed, the electri...
Claims
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IPC IPC(8): B23K9/12B23K9/127B23K9/095
Inventor 李震张平利
Owner XI AN RAILWAY TRANSPORTATION EQUIP