Float-type bar shearing machine

The utility model relates to a float-type bar shearing machine comprising a lathe bed, a shearing component and an oil cylinder assembly, wherein, the shearing component is made up of upper scissors and lower scissors which take the shape of a wedge, the bottom surface of the lathe bed is fixedly connected with a lower cutter seat through four pull rod bolts and an adjusting nut, the top surface of the lower cutter seat is fixedly connected with four guide poles, the four guide poles penetrate the lathe bed respectively, an ejector plate is fixedly connected with the upper end thereof, an upper cutter seat is connected in a sliding manner with the four guide poles between the ejector plate and the table board of the lathe bed, the top surface of the upper cutter seat is fixedly connected with the piston rod of the oil cylinder assembly fixed on the top surface of the ejector plate, the upper and the lower scissors are installed respectively on the bottom surface of the upper cutter seat and the top surface of