Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
  • B23G1/00—Thread cutting; Automatic machines specially designed therefor
  • B23G1/22—Machines specially designed for operating on pipes or tubes
  • B23G1/24—Machines specially designed for operating on pipes or tubes portable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
  • B23B31/02—Chucks
  • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
  • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
  • B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
  • B23B31/16004—Jaws movement actuated by one or more spiral grooves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
  • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
  • B25H1/02—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type
  • B25H1/04—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type portable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B2260/00—Details of constructional elements
  • B23B2260/128—Sensors
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
  • B23B2270/48—Measuring or detecting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B25/00—Accessories or auxiliary equipment for turning-machines
  • B23B25/06—Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
  • B23D2277/00—Reaming tools
  • B23D2277/66—Measurement of the tool or bore
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
  • B23G1/00—Thread cutting; Automatic machines specially designed therefor
  • B23G1/22—Machines specially designed for operating on pipes or tubes
  • B23G1/225—Machines specially designed for operating on pipes or tubes automatically controlled
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
  • B23G2240/00—Details of equipment for threading other than threading tools, details of the threading process
  • B23G2240/52—Sensors

Definitions

• the present invention relates to pipe threaders, and more particularly to portable pipe threaders.
• Portable pipe threaders include a stand and a carriage mounted to the stand having multiple pipe threading tools. These tools are usually a die holder including multiple dies, a cutter, and a reamer.
• a motor transmits torque to a spindle to which a pipe is clamped for rotating the pipe with respect to the tools.
• the motor is an AC motor that receives power from a remote power source (e.g., via a power cord) and is usually controlled using a pedal, which upon actuation, triggers the motor to begin rotating the pipe.
• a remote power source e.g., via a power cord
• a pedal which upon actuation, triggers the motor to begin rotating the pipe.
• the thread cutting dies, or other pipe threading tools heat up and require lubrication.
• Some portable pipe threaders have an onboard lubrication system to lubricate the dies as the threads are being cut on the pipe, while others rely upon the operator to manually lubricate the dies with a hand-
• the present invention provides, in one aspect, a portable pipe threader including a stand upon which a pipe is supported, a carriage supported by the stand upon which at least one pipe threading tool is supported, a spindle including a plurality of chuck jaws for clamping the pipe, the chuck jaws configured to move radially inward along a travel path toward an outer surface of the pipe, and a sensor system configured to determine a location of the chuck jaws along the travel path and relative to the outer surface of the pipe, the sensor system configured to output a signal corresponding to the location of each of the chuck jaws when engaged with the outer surface of the pipe.
• the portable pipe threader further includes an electronic controller in communication with the sensor system configured to determine an outer diameter of the pipe in response to the signal output from the sensor system.
• FIG. l is a top view of a portable pipe threader in accordance with an embodiment of the invention.
• FIG. 9 is a perspective view of a portable pipe threader in accordance with another embodiment of the invention.
• FIG. 11 is a perspective view of an embodiment of a self-adjusting die head system for use with any of the portable pipe threaders of FIGS. 1-3.
• the portable pipe threader 10 further includes a spindle 60 in which the pipe 14 is clamped.
• the drive element 34 interconnects the spindle 60 and the output gear of the gear box 26.
• torque from the motor 22 is transferred to the spindle 60, causing it and the pipe 14 to rotate, via the gear box 26 and the drive element 34.
• the plurality of pipe threading tools 46, 50, 54 includes a die holder 46 having a plurality of dies (not shown) to cut threads on the pipe 14, a cutter 50 to trim excess pipe 14, and a reamer 54 to smooth edges of the threaded or cut pipe 14.
• the plurality of pipe threading tools 46, 50, 54 remain stationary on the carriage 42 while the pipe 14 is rotated by the spindle 60.
• the portable pipe threader 10 also includes a lubricant port 64 (e.g., a male quick- connect coupling) configured to fluidly connect to a lubrication system 300 (FIG.4) to provide lubricant during a threading, cutting, or reaming operation using, respectively, the die holder 46, the cutter 50, or the reamer 54.
• a lubricant port 64 e.g., a male quick- connect coupling
• FIG. 2 illustrates a portable pipe threader 110 according to an alternative embodiment.
• the portable pipe threader 110 includes a stand 68 (FIG. 5) and a carriage 142 supported by the stand 68.
• the pipe threader 110 includes a spindle 160 to which a pipe 114 is clamped and a plurality of pipe threading tools 146, 150, 154 supported by the carriage 142.
• the pipe threader 110 includes a drive assembly 118 mounted to the carriage 142 with the pipe threading tools 146, 150, 154 for rotating the individual tools 146, 150, 154.
• the drive assembly 218 includes a motor 222, a gear box 226 coupled to the motor having an output gear (not shown), a pedal 230 that selectively controls the drive assembly 218, and a battery pack 238 supported by the stand 68 in selective electrical communication with the motor 222 to provide electrical power to the motor 222.
• the drive assembly 218 further includes a common driveline 234 interconnecting the motor 222 and the plurality of pipe threading tools 246, 250, 254 for selectively providing torque from the motor 222 to one of the pipe threading tools 246, 250, 254.
• the pedal 230 is operable to activate the motor 222 and control a relative speed at which the pipe 214 and the selected one of the pipe threading tools 246, 250, 254 are rotated.
• the lubricant ports 64, 164, 264 of any of the pipe threaders 10, 110, 210 shown in FIGS. 1-3 are configured to fluidly connect to a lubrication system 300 to receive lubricant therefrom.
• the lubrication system 300 is separate and detachable from the threader 10.
• the lubrication system 300 is integrated with the threader 10.
• the lubrication system 300 includes a pump 330 (e.g. self-priming positive displacement) that draws lubricant from a tank 315 through a plurality of tubes 335.
• a battery pack 325 which is separate from any of the battery packs 38, 138, 238, provides electrical power to the pump 330.
• the pump 330 may receive electrical power from the same battery packs 38, 138,
• the pump 330 may be used to provide a pressurized flow of lubricant to the pump 410, which could be used as a hand-held dispenser by the operator of the threader 10 to start and stop the flow of the lubricant, to manually direct the lubricant discharged from the pump 330 to the pipe.
• the recessed battery receptacle 53 coincides with a gap 55 defined by the housing 51 between the first and second sets of guide rails 44, 45.
• the battery receptacle 53 defines a battery insertion axis 56 transverse to the first and second sets of guide rails 44, 45 along which the battery pack 38 is slidably received to electrically power the motor 22.
• the battery pack 38 is partially recessed within the housing 51 and located within the gap 55 between the first and second sets of guide rails 44, 45.
• the pipe threader 310 further includes a drive assembly 318 having a motor 322, a gear box 326 coupled to the motor 322 having an output gear (not shown), and a drive element 334 coupled to the gear box 326 and powered by the motor 322.
• the motor 322 is configured to supply torque to the output gear of the gear box 326, rotatably driving the drive element 334 to rotate the pipe 314.
• the pipe 514 can be held stationary and the fitting 590 can be rotated onto the pipe 514.
• the pipe wrench 525 could be integrated into the cutter 50, 150, 250 or reamer 54, 154, 254 of the threaders 10, 110, 210.
• the proximity sensor 640 for electrically communicating with the plurality of chuck jaws 620.
• the proximity sensor 640 e.g., an infrared or Hall-effect sensor
• the proximity sensor 640 measure a radial distance of the chuck jaws 320 depending on their relative location along the travel path on the tightening plate 615 (FIG. 10 A) until the chuck jaws 620 contact the outer diameter of the pipe.
• the proximity sensor 640 outputs a signal of the distance measurement to the electronic controller 1450 (FIG. 19A), which then extrapolates the position of the chuck jaws 620, and therefore the nominal outer diameter of the pipe.
• FIG. 19B illustrates one embodiment of the threader 10 mounted on the stand

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
• Earth Drilling (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=77928593

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Family Cites Families (7)

• 2021
  • 2021-03-31 WO PCT/US2021/025137 patent/WO2021202701A1/en not_active Ceased
  • 2021-03-31 CN CN202190000388.9U patent/CN219324842U/zh active Active
  • 2021-03-31 EP EP21780529.0A patent/EP4126432A4/de active Pending

Also Published As

Similar Documents

Legal Events