Simple automatic welding device for curved-surface U-shaped rib plate unit

Abstract

The utility model relates to an automatic welding device for a simple curved-surface U-shaped rib plate unit, which not only can simply, conveniently and quickly realize the automatic welding of the curved-surface U-shaped plate unit, but also can ensure that the welding design precision meets the requirement, and is characterized in that the middle part of a plate unit jig frame is hinged on a fixed support pier, and the back surfaces of two ends of the plate unit jig frame are supported by a hydraulic support frame; clamping flanges are arranged at the two ends of the plate unit jig frame respectively, the plate unit jig frame is located on the lower portion in the portal frame, and the rear end of the gantry automatic welding machine sleeves a gantry beam and moves front and back along the beam. The method has the advantages that firstly, use and operation are simple, convenience and feasibility are achieved, deformation is small in the use process, and quality control is facilitated; the function is powerful, the applicability is high, and automatic welding of welding seams of curved plate units with different curvatures can be achieved through modification; thirdly, existing equipment can be modified, after the equipment is manufactured for the first time, only local adjustment is needed in subsequent use, large investment is not needed, the cost is low, and the effect taking speed is high; and fourthly, the post-maintenance cost is low, the durability is strong, and the method is suitable for wide popularization.

Description

Technical Field

[0001] The utility model relates to a simple automatic welding device for curved U-shaped rib plate units, which can realize automatic welding of curved U-shaped plate units simply and quickly and ensure that welding design accuracy meets requirements, and belongs to the field of welding device manufacturing. Background Art

[0002] As my country's steel bridge manufacturing technology becomes more sophisticated, more and more beautiful curved bridges are increasing, which also puts higher requirements on bridge construction technology. In order to ensure the welding quality of U-shaped ribs and curved panels, submerged arc automatic welding machines are usually used for welding, which can not only ensure welding quality, but also meet the requirements of beautiful weld appearance. However, since the angles of the U-shaped ribs and the curved panels are variable, the welds that can be achieved by submerged arc welding machines can only be in the flat position or the ship position, and it is difficult to achieve the welding of the U-shaped rib welds of the curved panel units. Summary of the invention

[0003] Design purpose: To avoid the shortcomings of the background technology, a simple automatic welding device for curved U-shaped plate units is designed, which can realize the automatic welding of curved U-shaped plate units easily and quickly and ensure that the welding design accuracy meets the requirements.

[0004] Design scheme: In order to achieve the above design objectives. In terms of structural design, the utility model designs a simple curved U-shaped rib plate unit automatic welding device. The device is characterized in that the curved panel unit is fixed on a special curved surface assembly welding frame through a calliper, and the frame angle can be adjusted by a hydraulic rod, so that the weld of the U-shaped rib of the curved panel unit is always in the ship position, ensuring that the gantry submerged arc welding machine located at the upper part can easily and quickly realize the welding of the U-shaped rib and the panel weld.

[0005] Technical solution: A simple curved U-shaped rib plate unit automatic welding device, the middle part of the plate unit frame is hinged on the fixed support pier, the back of both ends of the plate unit frame are supported by hydraulic support frames, and callipers are respectively provided at both ends of the plate unit frame. The plate unit frame is located at the bottom of the gantry frame, and the rear end of the gantry automatic welding machine is mounted on the gantry beam and moves forward and backward along the beam.

[0006] Compared with the background technology, the present invention is simple to operate, convenient and easy, with little deformation during use, which is conducive to quality control; secondly, it is powerful and applicable, and can be modified to realize automatic welding of curved panel unit welds with different curvatures; thirdly, it can be modified on existing equipment, and after the first production, only local adjustments are needed for subsequent use, without large investment, low cost and quick effect; fourthly, the later maintenance cost is low, the durability is strong, and it is suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of a simple curved U-shaped rib unit automatic welding device.

[0008] Figure 2 yes Figure 1 Schematic diagram from top view.

[0009] Figure 3 yes Figure 1 Schematic diagram of the welded front curved U-rib plate unit fixed on the tire frame.

[0010] Figure 4 yes Figure 3 Schematic diagram of adjusting the angle of the curved panel unit and welding it.

[0011] Figure 5 yes Figure 3 Schematic diagram of welding of other welds. DETAILED DESCRIPTION

[0012] Embodiment 1: refer to the attached Figure 1 and 2 A simple curved U-shaped rib plate unit automatic welding device, the plate unit frame 3 is hinged in the middle on the fixed support pier 2, the back of the two ends of the plate unit frame 3 is supported by the hydraulic support frame 1, the two ends of the plate unit frame 3 are respectively provided with a call 5, the plate unit frame 3 is located in the lower part of the gantry frame 7, and the rear end of the gantry automatic welding machine 6 is sleeved on the gantry beam and moves forward and backward along the beam. The plate unit frame 3 is in the shape of a curved surface assembly welding frame.

[0013] Step 1: Fix the curved panel 4 on the panel unit frame based on the reference lines on the frame and panel unit, assemble the U-shaped rib based on the position line, and fix the panel unit through the calliper after the height loss and other points of the curved panel unit are tested and found to be qualified, see 3.

[0014] Step 2: Adjust the angle of the curved panel unit through the hydraulic telescopic device so that the weld between the U-shaped rib on the side and the curved panel is in a flat position or a ship position. Move the welding gun of the gantry automatic welding machine to the position of the U-shaped rib on the side and weld, see 4.

[0015] Step 3: Repeat step 2 to weld the remaining U-shaped ribs and curved panel units in sequence, see step 5.

[0016] Technical conditions for the implementation of this utility model:

[0017] ① The foundation used in this device has sufficient bearing capacity to ensure that no large settlement occurs during the entire construction process.

[0018] ② As the components constituting this device must satisfy the adjustment function, during the use of the device, process measures such as clamping and reinforcement should be adopted to avoid deformation during use.

[0019] ③ The curvature adjustment range of the curved panel unit frame is limited. In order to ensure its functionality, it should be modified or replaced according to actual needs.

[0020] It should be understood that although the above embodiments provide a relatively detailed textual description of the design ideas of the present invention, these textual descriptions are only simple textual descriptions of the design ideas of the present invention, rather than limitations on the design ideas of the present invention. Any combination, addition or modification that does not exceed the design ideas of the present invention shall fall within the protection scope of the present invention.

Claims

1. A simple curved U-shaped rib unit automatic welding device, characterized by: The plate unit frame (3) is in the shape of a curved surface assembly welding frame. The middle part of the plate unit frame (3) is hinged on the fixed support pier (2). The backs of both ends of the plate unit frame (3) are supported by hydraulic support frames (1). The angle of the plate unit frame can be adjusted by the hydraulic support frames so that the weld between the U-shaped ribs of the curved plate unit is always in the ship position. Callouts (5) are respectively provided at both ends of the plate unit frame (3). The plate unit frame (3) is located at the lower part inside the gantry frame (7). The rear end of the gantry automatic welding machine (6) is sleeved on the gantry beam and moves forward and backward along the beam.

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