The invention discloses a beveling process for a door plate of a power distribution box, which belongs to the technical field of power distribution boxes, and comprises the following steps: controlling the thickness error of a base material according to + / -0.05 mm, and then carrying out
laser rough
cutting on the base material by adopting 3000W
optical fiber laser and angle tolerance of + / -0.05 mm; then CNC finish
machining is carried out, after the R angle of the base material is controlled to be 0.5-1 mm and the roughness reaches Ra3.2 microns, a CCD visual online detection
system with the resolution being 0.01 mm is adopted for controlling the plate, and the yield of the machined plate is larger than or equal to 99%; then, the surface of the plate is subjected to treatment measures such as
sand blasting, double-layer spraying and edge phosphating, so that the
corrosion resistance of the plate is improved; finally, the tolerance of a hinge hole location is controlled to be + / -0.2 mm when the plate is assembled, a door assembled with the distribution box does not exceed 1 mm, finally, the bevel edge angle tolerance is rechecked to be + / -0.1 degree, and it is ensured that the
adhesive force of a
coating reaches the 4B level; therefore, a high-precision and high-reliability standardized distribution box door plate bevel edge production process can be formed, and the technical problem of how to improve the production efficiency of the distribution box door plate is solved.