Welding roller frame operation rules and precautions

As a welding auxiliary device, welding roller frame is often used for rotating work of various cylindrical and conical welds, which can achieve internal and external ring seam welding of workpieces with welding displacement machine, and in the face of continuous development of welding equipment, welding roller frame is also constantly improved, but no matter how to improve, welding roller frame operating procedures are basically common. The following Weldsuccess Automation Equipment ( Wuxi ) Co., Ltd. has sorted out the operating procedures and precautions for welding roller frames for our reference.

1.check the welding roller frame before use

（1）check whether the external surrounding environment meets the requirements, no debris disturbance;

（2） electrified air work, no abnormal noise, vibration and smell;

（3） the mechanical connection bolts are loose, if loose, fastening can be used;

（4） Check whether there is debris on the guide rail of the machine and whether the hydraulic system works normally;

（5）check whether the roller rolling is normal.

2. welding roller frame operating procedures

（1）It is necessary for the operator to understand the basic structure and function of the welding roller frame, reasonably choose the scope of application, grasp the operation and protection, and understand the electrical safety knowledge.

（2） when the cylinder is placed on the roller frame, it is necessary to check whether the center line of the wheel and the center line of the cylinder are parallel to ensure that the wheel and the cylinder touch and wear evenly.

（3） adjust the focal length of the two groups of Torun center and the center of the cylinder to 60°±5°, if the cylinder body is focused, it is necessary to add protective devices to prevent the cylinder body from turning out.

（4）if the need to adjust the welding roller frame, it is necessary to carry out in the stagnant state of the roller frame.

（5） When starting the motor, first close the north and South Pole switches in the control box, turn on the power, and then press the "forward" or "reverse" button according to the welding requirements. To stop scrolling, press the "Stop" button. If the rotation direction needs to be changed halfway, the "Stop" button can be adjusted first, and the power supply of the speed control box is turned on. The speed of the motor is controlled by the speed control knob in the control box.

（6） when starting, adjust the speed control knob to the low speed position to reduce the starting current, and then adjust to the required speed according to the operation requirements.

（7）It is necessary to fill the smooth oil in each shift, and check the smooth oil in each turbine box and bearing regularly; Bearing smooth oil is selected ZG1-5 calcium based smooth oil, and the method of frequent replacement is adopted.

3. the use of welding roller frame precautions

（1）when the workpiece is suspended on the roller frame, first observe whether the orientation is appropriate, whether the workpiece is close to the roller, whether there is a foreign body on the workpiece that prevents rolling, and confirm that everything is normal before formal work;

（2） close the power switch, start the roller rotation, adjust the roller rotation speed to the required speed;

（3） When the rolling direction of the workpiece is required to be changed, it is necessary to press the reverse button after the motor is completely stopped;

（4） Before welding, idling the cylinder for a week, and confirming whether the orientation of the cylinder needs to be adjusted according to its moving interval;

（5） in the welding operation, the ground wire of the welding machine can not be directly connected to the roller frame, so as not to damage the bearing;

（6） The outer surface of the rubber wheel is prohibited from touching fire sources and corrosive substances;

（7）The roller frame should regularly check whether the oil level in the hydraulic tank is normal, and the sliding surface of the track should be kept smooth and free of foreign bodies.