Ordinary lathe for boring of cone-shaped deep hole

The utility model belongs to the technical field of a device for machining a cone-shaped hole and particularly relates to an ordinary lathe for boring of the cone-shaped deep hole. The ordinary lathe for the boring of the cone-shaped deep hole solves the problems that a conventional ordinary lathe can not machine a hole with small diameter and large depth and comprises a lathe body, a boring rod and a boring knife. Holes are arranged on the axial center and along the radial direction of the boring rod. The boring knife is arranged in a radial hole of the boring rod. A double cone-faced core rod is arranged in an axial hole of the boring rod. Two cone-shaped bodies are arranged at the front end of the double cone-shaped core rod and share the same conical degree. A suspension support is arranged on the boring rod and a cone-shaped hole is arranged in the boring knife. The axis direction of the cone-shaped hole is parallel to the axis direction of the boring rod. The ordinary lathe for the boring of the cone-sh