In bridge construction, because the processing of steel cage is an important part of infrastructure construction, the quality of steel cage becomes very important. In the traditional construction in the past, the steel cage adopts the way of manual rolling or manual welding, which is inefficient and the quality of the steel cage produced is poor. The steel cage hobbing welding machine is the steel bar straightening, bending molding, hobbing molding and then organically combined together, so that the processing of steel cage basically realize automation, greatly improve the quality and efficiency of steel cage molding, so more and more projects choose to use steel cage hobbing welding machine to make steel cage. This article is a brief introduction to the design principle, structural advantages and some details of the CNC steel cage hob-welding machine.
CNC steel cage principle introduction
According to the construction requirements, the main bar of the steel cage is fixed manually by passing through the corresponding circular hole of the template of the fixed rotating disc to the corresponding hole of the moving rotating disc. The end of the winding bar is first welded on a main bar, and then the winding bar is wrapped around the main bar by fixing the rotating disc and moving the rotating disc while rotating and moving back, and welding is carried out at the same time. Thus forming the product steel cage - this is the working principle of the bored pile steel cage hobbing welding machine, that is, the "steel cage forming machine".
CNC steel cage welding machine advantages
The plate part of the flexible die ring and cross bar installation design, can be flexibly replaced according to different pile specifications, economic application
The quality of the finished steel cage is stable and reliable. PLC electronic control system and touch screen numerical control operation, the main bar, winding bar spacing uniform, rotation speed, driving speed can be adjusted to ensure the steel cage molding quality, product quality to meet the standard requirements.
Can complete the pile foundation diameter 400mm-2500mm single main reinforcement single stirrup, single main reinforcement double stirrup, and double main reinforcement double stirrup welding work.
The structure of the fixed frame and mobile frame is optimized to reduce the weight of the main engine and the load of the power unit, so that the heavier steel cage can be made at present. (The cross bar adopts 45 cold-drawn steel of 40×60mm, which has strong bearing capacity and is not easy to deform, and the cross bar will not deform when processing small-diameter steel cage)
The rim structure has been optimized, the use of high-strength seamless steel pipe, through precision cold forming, and then directly used.
When the steel cage skeleton rotates, it is dragged backward by the moving disc, and the disc bar does not move
Full servo motor, endless speed change, high accuracy, to avoid the fixed disc and moving disc are not synchronous resulting in distortion of steel cage finished products (walking 100m, error is only 1mm)
It is equipped with multiple sets of hydraulic support devices to prevent the steel cage from sagging due to its own weight; (Each hydraulic support uses 80 cylinders and can carry 4.5 tons of weight)
It is equipped with multi-component material rack to prevent the main rib from being confused in the production process. (45 # steel with diameter φ45, strong rigidity, large bearing torque, will not bend or break.)
High solder joint accuracy, stirrup tension does not need to lap, high precision of the main rib distribution, good consistency, uniform stirrup spacing, can save 1.5% of materials, greatly reduce construction costs.
