Protective device for guardrail production

The utility model discloses a protective device for guardrail production, which comprises a processing box and a protective mechanism arranged on the processing box, a supporting plate is arranged in the processing box, a placing frame is arranged on the supporting plate, a sliding rail is arranged on the processing box, a sliding block is arranged in the sliding rail in a sliding mode, and the placing frame is arranged on the sliding rail. The protection mechanism is slidably mounted on the treatment box, the protection mechanism comprises a machine frame and a fixing plate, a motor, the fixing plate, a connecting block, a protection box, a spring, a drill bit and the like are used in cooperation, the parallel protection box drives the connecting block to slide into a groove in the fixing plate under the cooperative use of the spring, and the drill bit is driven to rotate; the protective box can effectively control generated slag scraps, the slag scraps generated during drilling are prevented from splashing