Installation and inspection of special-shaped rivets

Special-shaped rivet installation steps

1. Preparation before installation

Check whether the air pressure is within the working air pressure range (0.5:0. 7 mpa). If there is no filter installed on the pressure regulator, the air should be discharged before the tool is connected to the air source to remove the dust and water accumulated in the air passage. If the filter is installed, it should be cleaned. Check the pneumatic riveting machine, whether the suction nail is normal, whether the riveting stroke is in place; whether the nozzle size and shape are appropriate; check whether the mounting hole size and the workpiece riveting thickness meet the requirements of Table 7. The mounting hole size and nozzle size must be selected correctly. If the hole diameter is too large, the riveted body will shear off. Improper nozzle shape (such as spherical/flat surface) and excessive nozzle size (such as too large spray gun nozzle) will cause riveting burrs to protrude, affect appearance, and cause scraping.

2. Special-shaped rivet installation

Place this product on the operating table for easy nail suction; hold the handle of the nail gun, open the air valve, and align the product so that the nail core end becomes the nozzle of the gun. Note that light nail rods are not allowed on the workbench. Foreign objects can be sucked into the barrel to prevent the barrel from being blocked after being sucked in. The barrel should be reset normally before being nailed into the barrel. The product is fed into the workpiece hole and riveted in the vertical direction of the workpiece plane. The product is not allowed to be inserted at an angle, and no gap between the edge and the surface of the workpiece is allowed, otherwise it will cause an abnormal riveting state!

3. Test after riveting

After the riveting is completed, judge whether the riveting state is normal: whether the lifting drum of the riveted body is uniform. The nail is completely covered; the edge of the riveted body is close to the workpiece seamlessly; the burr foreign body is not removed from the hole.

(1) Visual inspection

After riveting, there shall be no obvious convex and concave deformation on every four sides, no obvious surface treatment, and no embossing or molding method

(2) Torque test

After putting it in place, the board should not be loosened, or loosened or fallen off. Check the firmness of the board.