| 摘要 |
<p>An improved method for forming holes in a board and an improved apparatus for practicing the improved method. Two or three linear arrays of holes are punched through the board, through its expansive faces, in a punching zone. A punch and a die coacting with the punch are used to punch each punched hole, in a press comprising a pressing ram and a pressing bed, upon relative movement of the pressing ram and the pressing bed toward each other. The board is registered in the pressing zone, in a predetermined position, by engaging its opposite edges and its opposite ends. Plural holes are drilled into each end of the board in a drilling zone. A physical measurement is conducted in an inspecting zone, by inserting a probe into each drilled hole, so as to determine whether such drilled hole has been drilled to a minimum depth. These punching, drilling, and inspecting steps of the improved method are carried out in a series of automated operations of the improved apparatus.</p> |
