Hole alignment machining device for profile thin angle steel

The invention discloses a hole alignment machining device for profile thin angle steel. The hole alignment machining device comprises a workbench, linear conveying mechanisms arranged in the length direction of the workbench are arranged on the two sides of the workbench, each linear conveying mechanism comprises a conveying line and a positioning base distributed along the conveying line, the conveying lines in the two linear conveying mechanisms are horizontally and directly arranged, and the positioning seats on the two conveying lines are in one-to-one correspondence; one end of the workbench is provided with a jacking mechanism, a pressing mechanism and a drilling mechanism used for drilling, wherein the jacking mechanism and the pressing mechanism are correspondingly arranged up and down, and the jacking mechanism and the pressing mechanism are matched to achieve multi-point-position clamping of angle steel to be drilled; and the drilling mechanism comprises a mounting box and two drill bits arranged on