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US 4,082,022 AGranted
Tube cutting apparatus
AssigneeThe Vulcan Tool Company
InventorsCharles F. Horn, Arthur L. Lerch, Raymond J. Turckes, Ronald P. Nagel
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AssigneeThe Vulcan Tool Company
InventorsCharles F. Horn, Arthur L. Lerch, Raymond J. Turckes, Ronald P. Nagel
Estimating the term…
A preferred embodiment of the invention provides tube cutting apparatus including, a head structure mounting cutter means defining a cutting station for a length of tubular material, an elongate rod-like structure for mounting the tubular material, tube engaging means for advancement of said tubular material along said rod-like structure to said cutting station, support means for said rod-like structure including a portion of table-like form, means for an initially free pivotal connection of said table-like support portion to said head structure and a pedestal type support for the opposite end of said table-like support portion including means for a lateral adjustment thereof about said pivot means to effect a precise alignment of said rod-like structure with said cutting station. The embodiment has means defining a loading station for placement of said tubular material in connection with said tube engaging means, means for driving said engaging means along said rod-like structure, and means for energizing said driving means to produce an automatic placement of said tube engaging means at said loading station. The driving means has, in operative connection therewith, means to then effect a retraction of said tube engaging means from said loading station to a position defining a starting station. Means are provided to energize said driving means to move said tube engaging means and the tubular material engaged thereby in the direction of said cutting station an exact amount of travel in accordance with the segment to be cut from said tubular material and there are further means to sense an energized condition of said driving means and to prevent the operation of said cutting means until said driving means is fully deenergized.
Tube cutting apparatus comprising a shearing head, a table-like structure mounting means for engaging, supporting and for moving a tube through a cutting station defined at said shearing head, said shearing head including means for guiding and for cutting said tube at said cutting station, said moving means including an energizable motor for advancing said engaging means with respect to said shearing head, means for energizing and deenergizing said motor to impart a pulsing operation thereto in which said engaging means is advanced in pulse-like increments of motion, a signal device operatively connected to the drive shaft of said motor to move therewith, and sensing means associated with said signal device and responding to motion thereof to preclude an operation of said cutting means while said signal device is in motion.
Tube cutting apparatus comprising a head structure mounting cutter means defining a cutting station for a length of tubular material, a movable feeder device for the tubular material, a lead screw rotatable in one direction to advance the feeder device toward the cutting station and rotatable in the opposite direction to return the feeder device toward a retracted starting position, first and second motors connected respectively to rotate said lead screw in said one direction and in said opposite direction, means for effecting a pulsing operation of said first motor whereby advance of said feeder device occurs in steps of predeterminable length, and means for effecting a continuous relatively rapid operation of said second motor whereby said feeder device is returned to a starting position in a continuing motion more rapidly than it is advanced.
Tube cutting apparatus comprising a head structure mounting cutter means defining a cutting station for a length of tubular material, an elongate rod-like structure for mounting the tubular material, tube engaging means for advancement of said tubular material along said rod-like structure to said cutting station, support means for said rod-like structure including a portion of table-like form, means for an initially free pivotal connection of said table-like support portion to said head structure and a pedestal type support for the opposite end of said table-like support portion including means for a lateral adjustment thereof about said pivot means to effect a precise alignment of said rod-like structure with said cutting station.
Tube cutting apparatus comprising a head structure mounting cutter means defining a cutting station for a length of tubular material, a movable feeder device for the tubular material, a lead screw rotatable to advance the feeder device and thereby to advance the tubular material to and through the cutting station, a motor connected to rotate said lead screw and having a pulsing operation whereby advance of said feeder device occurs in steps of predeterminable length, means for effecting an operation of said cutter means between steps of said feeder device, means for sensing motion as imparted by said motor, and means controlled by said sensing means for precluding an operation of said cutter means in the presence of sensed motion.
Tube cutting apparatus comprising a head structure mounting cutter means defining a cutting station for a length of tubular material, a movable feeder device for the tubular material, a lead screw rotatable to advance the feeder device and thereby to advance the tubular material to and through the cutting station, a motor connected to rotate said lead screw and having a pulsing operation whereby advance of said feeder device occurs in steps of predeterminable length, means for effecting an operation of said cutter means between steps of said feeder device, a disc embodying a series of circularly spaced magnets and driven by said motor to rotate and to stop rotating simultaneously with rotation of and interruptions in the rotation of said lead screw, a sensing device sensing rotary motion of said disc responsively to a sensed movement of said magnets and means controlled by said sensing device for precluding an operation of said cutter means in the presence of sensed motion.
Dependencies are inferred from the claim text.