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Pipe threading lathe for threading lathe

Pipe threading lathes generally have a large through hole on the spindle box. After the workpiece passes through the through hole, it is clamped by two chucks at both ends of the spindle for rotary motion. There are generally two ways to feed the tool: one is similar to a normal lathe by a lead screw to drive the slide and tool holder in front of the bed; the other is by the flat comb on the slide in the center of the bed. The external thread cutting head (see the automatic opening and closing thread cutting head) is cut into the workpiece and realized with the previous movement. Some machine tools for processing long pipes also have workpiece support devices. The pipe threading lathe has partially adopted digital control. For each revolution of the workpiece, the tool moves evenly by the distance of the selected pitch according to the number of feed pulses, which is very convenient for processing taper threads, changing the pitch and correcting the pitch error. This type of machine can process workpieces up to 15 meters in length and up to 400 mm in diameter.

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