Workplate for Y-axis compensation of ingot and Y-axis compensation method of ingot using the same

A workplate for Y-axis compensation of an ingot, the ingot attached thereto at a cutting-plane angle so as to be cut using a wire-cutting apparatus, the workplate comprising:

• a bottom plate having an upper surface formed to be curved downwards with respect to a longitudinal direction of the ingot attached to the workplate;
• and
• a top plate, coupled to the bottom plate such that a lower surface thereof is movable along the upper surface of the bottom plate and configured to enable the ingot to be coupled to an upper portion thereof at an X-axis cutting-plane angle,
• wherein the bottom plate is formed, at an upper portion thereof, with a movement guide configured to guide the top plate to move along the curved upper surface of the bottom plate in a longitudinal direction of the bottom plate without being separated from the bottom plate,
• wherein the movement guide is formed to be narrower in width than the upper surface of the bottom plate, and protrudes upwards with respect to the longitudinal direction of the ingot attached to the workplace;
• and
• the movement guide has opposite side surfaces inclined from inside to outside,
• wherein the top plate, which moves along the curved upper surface of the bottom plate while contacting the same, is formed with bent portions in opposite side surfaces thereof, respectively;
• lower surfaces of the bent portions have a shape corresponding to a shape of the curved upper surface of the bottom plate;
• and
• inner side surfaces of the bent portions are formed to be inclined from outside to inside while extending downwards such that the inner side surfaces form a shape corresponding to a shape of the opposite side surfaces of the movement guide, and
• wherein the top plate is moved by an operation of a linear movement device configured to press each of longitudinal opposite ends of the top plate in a horizontal direction;
• and
• an interference preventing groove is formed in the upper portion of the bottom plate along a movement trajectory of the linear movement device so that a pressing portion of the linear movement device does not come into contact with the bottom plate when one of the opposite ends of the top plate is pressed by the linear movement device.