Quick connecting device for punch top and mandril of perforator
A technology of quick connection and head ejector, applied in the direction of metal rolling, manufacturing tools, mandrels, etc., can solve the problems that the thread of the plug cannot be aligned with the thread of the union, the large disassembly tool cannot be used, and it is difficult to rotate the plug. The effect of reducing the workload of workers, simplifying the steps of online head replacement, and reducing the labor intensity of workers
Active Publication Date: 2009-10-21
TAIYUAN HEAVY IND
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Problems solved by technology
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The invention discloses a quick connecting device for a punch top and a mandril of a puncher, and relates to a perforating tool of a seamless steel tube perforator. The quick connecting device comprises the punch top, the mandril and a loose joint connecting the punch top and the mandril, wherein the loose joint consists of a punch top loose joint and a mandril loose joint; one end of the punch top loose joint is provided with outside threads, while the other end is a guide cone of which the outer wall is provided with an annular groove, and the end with the threads is connected with the punch top; one end of the mandril loose joint is provided with outside threads, while the other end is a guide taper hole matched with the guide cone, the guide taper hole is provided with a pin hole corresponding to the annular groove in the horizontal direction of the taper hole, and the end with the threads is connected with the mandril; and the cone of the punch top loose joint is inserted into the guide taper hole of the mandril loose joint, and the overlapping position of the annular groove of the punch top loose joint and the pin hole of the mandril loose joint is provided with a positioning pin roll. The quick connecting device can meet the requirement of quick replacement of the punch top on line, improves production efficiency, and can be recycled to reduce production cost.
Application Domain
MandrelsMetal rolling arrangements
Technology Topic
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Examples
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