US2826095A - High speed drilling attachment - Google Patents

High speed drilling attachment Download PDF

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Publication number
US2826095A
US2826095A US472365A US47236554A US2826095A US 2826095 A US2826095 A US 2826095A US 472365 A US472365 A US 472365A US 47236554 A US47236554 A US 47236554A US 2826095 A US2826095 A US 2826095A
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gear
high speed
attachment
drill
speed drilling
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US472365A
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Bennie F Dirzius
Robert H Mayfield
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DIRZIUS
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DIRZIUS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives
    • B23Q5/048—Speed-changing devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2186—Gear casings

Definitions

  • the ordinary drill press is not capable of a sufliciently high R. P. M. to efliciently drill small holes in certain metals and materials. Drill presses made to have a sufiiciently high R. P. M. for high speed work are very expensive. It is among the objects of our invention to provide an attachment for the ordinary drill press, so that its R. P. M. may be multiplied many times for such high speed work. Our attachment thereby converts an ordinary drill press into a high speed drill press immediately and inexpensively.
  • Another object is to provide a simple and uncomplicated structure, lasting in wear, successful and economical in operation, operable by anyone without special training, portable and effective in results.
  • Fig. 1 is a side elevational view of our attachment attached to a drill press;
  • Fig. 2 is a top plan view of our high speed drilling attachment;
  • Fig. 3 is a side elevational view of the same;
  • Fig. 4 is an enlarged disassembled sectional view of our device;
  • Fig. 5 is an assembled sectional view of the same;
  • Fig. 6 is a detailed view partly in section on line 66 of Fig. 4;
  • Fig. 7 is a detailed view partly in section on line 7-7 of Fig. 4; and
  • Fig. 8 is a detailed view partly in section on line 8-8 of Fig. 5.
  • the embodiment selected to illustrate our invention comprises a driving spindle or shaft 10, the upper end of which is adapted for removable engagement with the chuck 11 of a conventional drill press 12.
  • a bottom rounded flange 13 At the lower end of shaft is a bottom rounded flange 13, to the under surface of which are rotatably attached a pair of spaced planetary gears 14 and 15 by pins 16.
  • Said planetary gears engage a larger stationary internal gear 17 positioned within housing 18 by pin 19 or any other suitable attaching means.
  • Said planetary gears also engage pinion gear 20 which is mounted on central chuck shaft 21.
  • a bushing 33 is mounted within the central bottom portion of housing 18 at bottom opening 23 and through which extends chuck shaft 21.
  • To chuck shaft "ice 21 is attached a chuck 22 adapted to removably receive .a drill 24.
  • a torque arm 25 has one end attached by screw threads or other suitable means to housing 18 and in operation of the device bears against column 26 of the conventional drill press 12 to which our device is attached.
  • cap 27 adapted to be attached thereto by screw threads or other suitable means.
  • Said cap 27 has a raised central portion 28 with an opening 29 therein within which is mounted bushing 80.
  • the upper end of driving shaft 10 extends through opening 29.
  • a pair of spaced screw threaded openings 30 and 34 are provided in cap 27 to receive set screws 32, which extend to internal gear 17 for locking the same in position.
  • Driving shaft 10 has a hollowed out portion 33 within which is positioned bushing 31, and into which rotates the upper portion of unit chuck shaft 21.
  • a steel end thrust ball 35 is positioned in a recess 36 in the upper portion of chuck shaft 21 and rotates against an end thrust button 84 supported by the upper end of bushing 31.
  • An annular oil seal 85 is fitted within recess 36 in housing 18 to prevent loss of lubricant.
  • the ordinary drill press is too slow to efficiently drill small holes in certain materials.
  • Our attachment may be attached to such a drill press by inserting the upper driving shaft into the chuck of the press. As the press rotates shaft 10, planetary gears 14 and 15 travel on large gear 17 and move pinion gear 20. In the embodiment shown in the drawings herein, the pinion gear 20 moves four times the speed of driving shaft 10. Pinion gear 20 correspondingly drives unit chuck shaft 21 with chuck 22 and attached drill 24 at such increased R. P. M. The result is that the drill 24 is enabled to move rapidly enough for efficiently drilling small holes.
  • a gear casing a gear in said gear casing, said gear constituting one gear element of a train or set of gears, said casing providing a seat for said gear, means for securing said gear non-rotatably in said seat, a cover for said gear casing, said cover and said casing having coacting screw threads, a plurality of threaded apertures through said cover, a like plurality of screws threadedly engaged in said apertures and having one end bearing against one side face of said gear, said screws coacting with said cover and gear to maintain said gear in seated position and to prevent relative threadwise movement of said cover and casing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Description

- March 11, 1958 B. F. DIRZIUS ETAL HIGH SPEED DRILLING ATTACHMENT Filed Dec.
EN T0 United States Patent HIGH SPEED DRILLING ATTACHMENT Bennie F. Dirzius and Robert H. Mayfield, Cicero, UL; said Mayfield assignor to said Dirzins Application December 1, 1954, Serial No. 472,365
1 Claim. (Cl. 74-606) Our invention relates to an attachment for increasing the speed of a conventional drill press.
Among the objects of our invention is to provide an attachment adapted to be removably attached to a conventional drill press or drilling machine, whereby the speed of the drill may be multiplied to permit fine and precision drilling of small holes in a minimum of time, labor and expense.
The ordinary drill press is not capable of a sufliciently high R. P. M. to efliciently drill small holes in certain metals and materials. Drill presses made to have a sufiiciently high R. P. M. for high speed work are very expensive. It is among the objects of our invention to provide an attachment for the ordinary drill press, so that its R. P. M. may be multiplied many times for such high speed work. Our attachment thereby converts an ordinary drill press into a high speed drill press immediately and inexpensively.
Another object is to provide a simple and uncomplicated structure, lasting in wear, successful and economical in operation, operable by anyone without special training, portable and effective in results.
Our invention contemplates such other objects, advantages and capabilities as will later more fully appear and which are inherently possessed by our invention.
While we have shown in the accompanying drawings preferred forms of our invention, yet we wish it understood that the same are susceptible of modification and change without departing from the spirit of our invention.
Referring to the drawings, Fig. 1 is a side elevational view of our attachment attached to a drill press; Fig. 2 is a top plan view of our high speed drilling attachment; Fig. 3 is a side elevational view of the same; Fig. 4 is an enlarged disassembled sectional view of our device; Fig. 5 is an assembled sectional view of the same; Fig. 6 is a detailed view partly in section on line 66 of Fig. 4; Fig. 7 is a detailed view partly in section on line 7-7 of Fig. 4; and Fig. 8 is a detailed view partly in section on line 8-8 of Fig. 5.
The embodiment selected to illustrate our invention comprises a driving spindle or shaft 10, the upper end of which is adapted for removable engagement with the chuck 11 of a conventional drill press 12. At the lower end of shaft is a bottom rounded flange 13, to the under surface of which are rotatably attached a pair of spaced planetary gears 14 and 15 by pins 16. Said planetary gears engage a larger stationary internal gear 17 positioned within housing 18 by pin 19 or any other suitable attaching means. Said planetary gears also engage pinion gear 20 which is mounted on central chuck shaft 21. A bushing 33 is mounted within the central bottom portion of housing 18 at bottom opening 23 and through which extends chuck shaft 21. To chuck shaft "ice 21 is attached a chuck 22 adapted to removably receive .a drill 24.
A torque arm 25 has one end attached by screw threads or other suitable means to housing 18 and in operation of the device bears against column 26 of the conventional drill press 12 to which our device is attached.
To removably close the open end of housing 18, we provide a cap 27 adapted to be attached thereto by screw threads or other suitable means. Said cap 27 has a raised central portion 28 with an opening 29 therein within which is mounted bushing 80. The upper end of driving shaft 10 extends through opening 29. A pair of spaced screw threaded openings 30 and 34 are provided in cap 27 to receive set screws 32, which extend to internal gear 17 for locking the same in position.
Driving shaft 10 has a hollowed out portion 33 within which is positioned bushing 31, and into which rotates the upper portion of unit chuck shaft 21. A steel end thrust ball 35 is positioned in a recess 36 in the upper portion of chuck shaft 21 and rotates against an end thrust button 84 supported by the upper end of bushing 31.
An annular oil seal 85 is fitted within recess 36 in housing 18 to prevent loss of lubricant.
The ordinary drill press is too slow to efficiently drill small holes in certain materials. Our attachment may be attached to such a drill press by inserting the upper driving shaft into the chuck of the press. As the press rotates shaft 10, planetary gears 14 and 15 travel on large gear 17 and move pinion gear 20. In the embodiment shown in the drawings herein, the pinion gear 20 moves four times the speed of driving shaft 10. Pinion gear 20 correspondingly drives unit chuck shaft 21 with chuck 22 and attached drill 24 at such increased R. P. M. The result is that the drill 24 is enabled to move rapidly enough for efficiently drilling small holes.
In actual tests our device has resulted in a speed of 21,000 R. P. M. and is capable of much greater speed. Such speed is ample for the efiicient drilling of small holes.
Having thus described our invention, we claim:
The combination of a gear casing, a gear in said gear casing, said gear constituting one gear element of a train or set of gears, said casing providing a seat for said gear, means for securing said gear non-rotatably in said seat, a cover for said gear casing, said cover and said casing having coacting screw threads, a plurality of threaded apertures through said cover, a like plurality of screws threadedly engaged in said apertures and having one end bearing against one side face of said gear, said screws coacting with said cover and gear to maintain said gear in seated position and to prevent relative threadwise movement of said cover and casing.
\ References Cited in the file of this patent UNITED STATES PATENTS 638,643 Newman et al. Dec. 5, 1899 721,930 Zellers Mar. 3, 1903 1,721,612 Yannes July 23, 1929 2,368,133 Galamb Jan. 30, 1945 2,420,040 Frisby et al. May 6, 1947 2,590,649 Gregoire Mar. 25, 1952 FOREIGN PATENTS 349,272 Great Britain May 28, 1931 409,430 Italy Feb. 15, 1945
US472365A 1954-12-01 1954-12-01 High speed drilling attachment Expired - Lifetime US2826095A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084570A (en) * 1959-07-02 1963-04-09 Holder Manfred Machine tool speed step-up drive attachment
US3472083A (en) * 1967-10-25 1969-10-14 Lawrence S Schnepel Torque wrench
US3511114A (en) * 1968-04-23 1970-05-12 Lawrence S Schnepel Toroue wrench
US4474077A (en) * 1982-02-01 1984-10-02 Black & Decker Inc. Housing retaining means for portable power tools and method of assembly therefor
US5536219A (en) * 1993-11-26 1996-07-16 Kubota Corporation Rear axle apparatus for a tractor
US20080103016A1 (en) * 2006-10-25 2008-05-01 Remy Inc. Modular planetary gear assembly and drive
US20090107729A1 (en) * 2007-10-29 2009-04-30 Yao-Pang Chan Drilling machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638643A (en) * 1899-05-19 1899-12-05 Fred J Newman Means for propulsion of vehicles by electricity.
US721930A (en) * 1902-06-24 1903-03-03 William H Zellers Tool-actuating attachment for drilling-machines.
US1721612A (en) * 1927-05-11 1929-07-23 Yannes Stephen Emil Power-driven tool
GB349272A (en) * 1930-05-06 1931-05-28 Albert Stoll Improvements in or relating to devices for driving rotating tools such as screw-drivers, drills and the like
US2368133A (en) * 1941-08-07 1945-01-30 Ford Motor Co Motor-vehicle top construction
US2420040A (en) * 1945-07-13 1947-05-06 Ramsey Accessories Mfg Corp Shaft oil seal
US2590649A (en) * 1949-04-18 1952-03-25 Reichert Carl Bale ejector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638643A (en) * 1899-05-19 1899-12-05 Fred J Newman Means for propulsion of vehicles by electricity.
US721930A (en) * 1902-06-24 1903-03-03 William H Zellers Tool-actuating attachment for drilling-machines.
US1721612A (en) * 1927-05-11 1929-07-23 Yannes Stephen Emil Power-driven tool
GB349272A (en) * 1930-05-06 1931-05-28 Albert Stoll Improvements in or relating to devices for driving rotating tools such as screw-drivers, drills and the like
US2368133A (en) * 1941-08-07 1945-01-30 Ford Motor Co Motor-vehicle top construction
US2420040A (en) * 1945-07-13 1947-05-06 Ramsey Accessories Mfg Corp Shaft oil seal
US2590649A (en) * 1949-04-18 1952-03-25 Reichert Carl Bale ejector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084570A (en) * 1959-07-02 1963-04-09 Holder Manfred Machine tool speed step-up drive attachment
US3472083A (en) * 1967-10-25 1969-10-14 Lawrence S Schnepel Torque wrench
US3511114A (en) * 1968-04-23 1970-05-12 Lawrence S Schnepel Toroue wrench
US4474077A (en) * 1982-02-01 1984-10-02 Black & Decker Inc. Housing retaining means for portable power tools and method of assembly therefor
US5536219A (en) * 1993-11-26 1996-07-16 Kubota Corporation Rear axle apparatus for a tractor
US20080103016A1 (en) * 2006-10-25 2008-05-01 Remy Inc. Modular planetary gear assembly and drive
US7828687B2 (en) 2006-10-25 2010-11-09 Remy Technologies, L.L.C. Modular planetary gear assembly and drive
US20090107729A1 (en) * 2007-10-29 2009-04-30 Yao-Pang Chan Drilling machine

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