US Patent: 2,201,182
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| Machine Tool
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Patentee:
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| Elmer E. Kelley (exact or similar names) - Windsor, VT |
| USPTO Classifications: |
| 29/53 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 23, 1938 |
| Granted: |
May 21, 1940 |
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Joel Havens
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Description: |
| This invention relates to metal working machines of the kind generally known as automatic screw machines. Among the general objects of the invention are to provide an improved machine of this character, particularly adapted for forming turned metal articles at a higher rate of production than heretofore attainable, and capable of accomplishing like operations, or a number of different operations, simultaneously on each work piece and to provide an improved multiple spindle machine capable of producing a completed article on each work spindle for every cycle of operation thereof in an improved manner. A further object of my invention is to provide an improved machine of the type comprising two or more work rotating spindles, each including means for gripping the work during the tool operation and means for feeding the work stock forward to advance a new work piece into the tool region, the machine also including a stop element cooperating with the work feeding means to determine the length of stock to be fed, it being a further object to provide improved means for actuating this stop element between effective and ineffective positions. Another object is to provide an improved automatic machine in which the tools moving transversely of the work spindles, such as forming and/or cutting-off tools, are supported on and presented to the work by a common carrier or tool slide; and in which the arrangement of the transversely operable tools is so improved that the respective tools of any work spindle may operate alternately on the work to thereby assure a longer tool life, such arrangement having a further inherent advantage of permitting a relatively slow speed for the tools notwithstanding the high speed operation of the machine. A further object is to provide such an improved machine having accommodation for other tools operating axially or endwise on the work, such, for example, as boring, threading or finishing tools, the tool or tools of the respective spindles being operable simultaneously in an improved manner and supported and presented to the work on a common carrier in an improved manner, and actuated in harmony with the transverse tool carrier, so as to accomplish all operations on the work piece in an improved manner substantially at the same time, and thus produce finished articles usually requiring a series of successive operations, in an appreciably shorter time. The invention has for a further object, the provision of an improved machine adapted for the operation of the well known self-opening threading die, the machine affording improved automatic feeding of the die to the work, as well as improved means whereby the die may be automatically manipulated to open or close the same at the desired time intervals. A further object of' the invention is to provide an improved machine for the operation of improved dies having chasers controlled in a manner to cut tapering threads as for pipe joints, or to cut oppositely tapering threads- in one operation as for pipe nipples in either instance the machine affording complete and automatic actuation of the controlling elements of the die. Still further objects of my invention are to provide improved actuating mechanism and improved controlling mechanism for the several mechanisms of the machine whereby these latter mechanisms are enabled to cooperate in an improved and effective manner. |
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