Metal deforming – By deflecting successively-presented portions of work during... – With cutting of work or product
Patent
1974-06-24
1976-01-27
Lanham, C. W.
Metal deforming
By deflecting successively-presented portions of work during...
With cutting of work or product
72138, 72140, B21F 1100
Patent
active
039344452
ABSTRACT:
A dual purpose spring coiling machine adapted for two point and single point coiling and particularly adapted for convenient and rapid convertibility from one form of coiling to the other. The machine comprises a coiling tool slide assembly mounted on a frame generally opposite a wire feed and guide means and adjacent a coiling station. The tool slide assembly comprises a coiling tool slide and a guide mountable selectively on the frame in three discrete positions. Right and left-hand two point coiling positions respectively employ mounting of the guide in first and second positions inclined upwardly and downwardly 221/2.degree. from the horizontal. Single point coiling is achieved with the guide mounted horizontally. Coiling tool holders mounted on the slide may be selectively moved from one position to another for right and left-hand coiling with a first holder mounted on and movable with the slide. A second holder is mounted indirectly on the slide with a lever pivotally connected with the slide at an intermediate portion, fixed at one end portion and carrying the tool holder an an opposite and free end portion. The said holder is movable with and relative to the slide along an arc during rectilinear sliding movement. With the slide and tool holder arrangement diameter adjustments and control is achieved simultaneously through slide adjustment and control. A manual control takes the form of a screw and lock nut engageable with the slide and entered through threaded openings in the frame selectively with the guide in each of its three positions. An automatic control comprises an actuating lever and link selectively connectible with the slide in each of the three guide positions. The control also includes cam and motion transmitting means for operation of the control in timed relationship with the feed means and for diameter adjustment during coiling. A third tool holder for single point coiling is mounted on the slide with the guide in the horizontal position and the holder includes adjustment means for positioning a coiling tool above and below the line of wire feed respectively for right and left-hand springs. The manual and automatic diameter adjustment and control means are also operable with the slide and guide in horizontal position for single point coiling. A pair of laterally spaced locating pins projecting rearwardly from the guide are entered selectively in three pairs of locating holes in the frame for convenience in changing from one position to another and/or from one form of coiling to another.
REFERENCES:
patent: 2248440 (1941-07-01), Schmid
patent: 2393804 (1944-06-01), Nigro
patent: 2455863 (1948-12-01), Halvorsen
Lanham C. W.
Rogers Robert M.
Torin Corporation
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