MANUFACTURING DEVICE OF LARGE CONNECTING ROD FOR SHIP AND GENERATOR ENGINE AND MANUFACTURING METHOD OF LARGE CONNECTING ROD FOR SHIP AND GENERATOR ENGINE USING THE SAME

摘要

The present invention relates to an apparatus and method for manufacturing a forging body having a predetermined preliminary shape with a large connecting rod having one end or both ends of a rod-shaped rod part, and having a semi-cyclic end part. A large connecting rod manufacturing apparatus for a generator engine includes an upper base installed in an upper press of a press machine; A lower base installed in the lower press of the press, and provided with a rod pressing lower mold in which a center of the forging body is seated, and a round round mold for forming the end portion; A plurality of sliding mold parts, each of which is installed at one or more pairs of guide rails provided at the front and rear sides of the lower base and is slidably transported horizontally; It is provided in the upper base, the upper and lower bases in contact with the sliding mold portion as the proximity to each other, by including a plurality of rotation rods rotated by the lifting force to the upper and lower bases, the corresponding lifting force A force converting unit converting the pressure into a horizontal transfer force and transferring the sliding mold to the sliding mold part; And a rod pressing upper mold installed on the upper base and contacting and holding the center of the forging body seated on the rod pressing lower mold as the upper and lower bases are close to each other. As the slide is conveyed by the converter, one end or both ends of the forged body are contacted and bent to form the end part by bending about the round mold. According to the present invention, a forging body formed through a certain free forging operation can be quickly formed into a large connecting rod through a press work, and an end portion of the connecting rod is formed through a flame cutting process in which dangerous and poor working environment is bad. Instead, the sliding mold portion, which receives the horizontal transfer force from the force conversion portion that converts the lifting force by the press into the horizontal transfer force, can form the end portion by pressing and bending both ends of the forging body, thereby reducing the manufacturing time. It is possible to manufacture large connecting rods close to the final required dimensions by die forging processing and bending processing without cutting and discarding materials according to the flame cutting process, and can greatly reduce the manufacturing cost. Not only can the cutting be exposed, but it can also be more durable, Up the environment also it can be dramatically improved, and always maintain a high-quality product quality without operator skill and great care.