Device for processing cross section of pipe

A device for processing a cross section of a pipe, the device comprising:

• a base;
• a rotation drive source configured to rotate the base;
• a shaft having one end thereof secured to a front end portion of the base;
• a slide base having the shaft inserted therethrough to be capable of a sliding movement along an axis of the shaft;
• a roller guide member secured to the slide base and comprising a roller guide groove formed therein;
• a slide-base drive member configured to convert a rotational motion of the base into a linear motion so as to drive the slide base together with the roller guide member in a sliding movement;
• and
• a roller configured to adhere to an inner surface of a pipe and configured to rotationally process a cross section of the pipe outwardly in a radial direction of the pipe,
• wherein one end of a roller axle within the roller is joined to a front end side surface of the shaft such that the one end of the roller axle is freely rotatable,
• the other end of the roller axle is connected to the roller guide groove, and the other end of the roller axle is configured to undergo a circular motion according to the sliding movement of the slide base,
• wherein the slide-base drive member comprises:
• a slide nut secured to an outer perimeter of the base and having a front end surface thereof touching and connected with the slide base;
• and
• a rotation restrictor connected to an outer perimeter of the slide nut to restrict a rotation of the slide nut, and
• wherein the slide nut moves in a linear motion along the outer perimeter of the base together with the rotational motion of the base to drive the slide base in a sliding movement.