CUTTING DEVICE AND EXCHANGE DEVICE

To allow a consumable component to be exchanged in a short time.SOLUTION: The cutting device according to one embodiment comprises: a first member that rotates around a rotation shaft, in which an inner space and a penetration port penetrating through in a direction orthogonal to the rotation shaft from the inner space are formed; a second member provided to be able to reciprocate through the inner space in a direction of the rotation shaft; a protruding member, arranged in the penetration port, which protrudes to the outside accompanying movement of the second member from a first position to a second position different from the first position; a moving mechanism that reciprocates the second member between the first position and the second position; and a third member, in which are formed an opening into which one end part of the first member can be inserted and a recessed part, provided in an inner wall surface of the opening, to which the protruding member protruding from the penetration port enters, and which can be detachable attached to the first member at an attachment position at which positions in the direction of the rotation shaft of the recessed part and the penetration port match each other with respect to the first member; and a blade fixed to the third member so that the center thereof matches the center of the opening of the third member.SELECTED DRAWING: Figure 5 【課題】消耗部品の交換を短時間に行う。【解決手段】本実施形態に係る切断装置は、回転軸を中心に回転し、内部空間と、内部空間から回転軸に直交する方向へ貫通する貫通口と、が形成される第１部材と、内部空間を回転軸方向に往復移動可能に設けられる第２部材と、貫通口に配置され、第２部材が、第１位置から、第１位置とは異なる第２位置へ移動することで、貫通口から外部へ突出する突出部材と、第２部材を、第１位置と第２位置へ往復移動させる移動機構と、第１部材の一端部が挿入可能な開口と、開口の内壁面に設けられ、貫通口から突出した突出部材が進入する凹部と、が形成され、第１部材に対して、凹部と貫通口の回転軸方向の位置が一致する装着位置で、第１部材に着脱自在に装着される第３部材と、中心が、第３部材の開口の中心と一致するように、第３部材に固定されるブレードと、を備える。【選択図】図５