The positional accuracy of a pair of movable elements that are made to approach each other and separate from each other is improved by one driving source. The relationships between setting pitches, pitch deviation amounts, axis deviation angles, and central point deviation amounts of the pair of movable elements are stored as a deviation table. On the basis of the deviation table and a target pitch determined by the spacing between lead wires of a lead component to be inserted into a board, a pitch deviation amount, an axis deviation amount, and a central point deviation amount for the target pitch are acquired by an interpolation method (S25). Control instruction values to an x-axis motor, a y-axis motor, a ¸ motor, and a P motor are created taking into consideration correction values corresponding to these deviation amounts, and control is performed accordingly (S26 to S28). As a result, it is possible to accurately control the positions of the pair of movable elements, and it is possible to perform control such that lead wire insertion holes reach positions facing through-holes provided in the board. Therefore, the lead wires of the lead component are favorably inserted into the lead wire insertion holes, and it is possible to favorably perform cutting and clinching.