Cutting shear 1.1 Before cutting, first adjust the slope of the cutting machine to match the required slitting ruler. 1.2 Set the position of the steel plate to ensure the maximum size of the residual material, so that the remaining material can be used. 1.3 The length dimension is guaranteed by the flat opening, the wide bottom dimension requires ≤±2mm, the high bar blanking dimension tolerance, and the large head of each section takes the positive tolerance; general: 0-2m. The small head takes the negative tolerance, and after the -2-0mm size is adjusted, it is completed by the cutting machine and the automatic cutting machine. 1.4 Equipment: The material should be inspected for the operation of the rolling shear equipment, remove the debris on the track, and keep the equipment in good working condition. 2. Bend. Bending is the most critical process in the production of light poles. The quality of the bends directly affects the quality of the poles and cannot be repaired after bending. Specific details are as follows: 2.1 Before bending: Firstly remove the slag from the sheet to ensure that there is no slag to damage the mold during bending. 2.2 Check the length, width and straightness of the sheet. The straightness is less than or equal to 1/1000. If the straightness is not up to the requirement, the correction, especially the polygonal rod, must be guaranteed to be non-straight. 2.3 Increase the bending depth of the bending machine to determine the position of the sheet. 2.4 Straight line on the sheet, error: ≤ ± 1mm. 2.5 Correctly match the line, bend it correctly, and make the pipe joints minimum. At the same time, the height of the two sides is not more than 5mm. 3. Welding. Straight seam welding of the pipe joint after bending during welding. The welding uses submerged arc welding for automatic welding, mainly because the welder should have more responsibility. The welding position should be adjusted at any time to ensure the straightness of the weld. 4. Repair and polish. Repair and polishing is to repair the defects of the tube blank after automatic welding. The repairing personnel should check the roots one by one and find that the defective parts are replenished. After the repair welding is completed, the grinding is performed again, and the grinding joints are basically the same as the automatic welding seams. 5. Plastic surgery. The shaping process includes the straightening of the pole and the full circle and polygon diagonal dimensions of the two ends of the billet. The general tolerance is <±2mm. The straightness error of the billet does not exceed: ≤±1.5/1000. 6. Head together. In the same process, the bent tube ends are flattened at both ends to ensure that the nozzle is perpendicular to the center line, and there is no unevenness in angle and height, and at the same time, the end surface is polished after being flattened. 7. Install the bottom plate. The key to spot welding the bottom flange and the rib is to ensure that the bottom flange is perpendicular to the straight centerline of the lamp, the rib is perpendicular to the bottom flange, and is parallel to the straight busbar. 8. Solder flange and ribs. Welding requirements refer to the national standard welding process to ensure that the welding quality of the welded joints is beautiful, without pores and slag inclusions. 9. Open the door. This process must be daring during the work process. (1) First, you must see the drawing to determine the direction of the door, and then position it according to the size of the drawing. Dimensions include: up and down, left and right, and the size of the door frame. The plasma cutting should be careful, ensuring that the kerf is straight, and the cut door and the lamp pole are soldered with electric welding. 10. Welding strips, electrical strips, lock seats. When the door strip is welded, the door strip of 20mm width is extended 8-10mm, especially when spot welding, the door strip should be close to the lamp post, and the welding should be firm. The welding electric strip and the lock seat are mainly positioned according to the drawing, and the lock seat is welded in the middle of the door with an error of ≤±2mm, and the above level is maintained, and the light pole cannot be exceeded. 11. Bent forks. The bending process has the same properties as opening the door and should be bold. First pay attention to the direction of the door, the second attention to the starting point, the third light fork angle, the traction speed can not be suddenly and slowly, and the yield is guaranteed to be 100%. 12. Galvanized. The quality of the galvanizing directly affects the quality of the lamp post. The galvanizing requirements are galvanized according to national standards. After plating, the surface is smooth, no color difference, no sag, and the sag can be re-plated. 13. Spraying. The purpose of spray molding is to be beautiful, and to prevent corrosion. 13.1 Grinding: The surface of the galvanized rod is smoothed with a polishing wheel to ensure that the surface of the rod is smooth and flat. 13.2 Straightening: Straightening the polished pole and shaping the shape of the mouth. The length of the pole must be 1/1000. The caliber requirements are: small rod ≤±1mm; high rod ≤±2mm. 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