| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enhance the machining efficiency by shortening a moving time from a machining end point to a next machining start point in a laser beam machining using the copying control. <P>SOLUTION: This laser beam machining using the copying control is performed by controlling a gap between a machining nozzle and a work, and moving a machining head. When the machining nozzle reaches a machining end point A of a machining shape S1, the Z-axis is moved at a predetermined speed. After the movement of a predetermined quantity a, the X-and Y-axes are rapidly moved to a machining start point E of a next machining shape S2. The moving direction of the Z-axis is inverted at an intermediate point C between the machining end point A and the machining start point E. (Fig. 2(a)). Alternatively, the movement of the Z-axis between C' and C" is stopped. (Fig. 2(b)). When the gap between the work and the machining nozzle reaches the predetermined value d, the gap control is started. Since the moving distance from the machining end point and the next machining start point is small, and the axes are less frequently stopped or switched, the machining head is moved to the next machining start point in a short time, and the machining by the gap control is performed. <P>COPYRIGHT: (C)2004,JPO</p> |
