US3728027A - Portable magnetic boring machine having light beam centering device - Google Patents

Portable magnetic boring machine having light beam centering device Download PDF

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Publication number
US3728027A
US3728027A US00105457A US3728027DA US3728027A US 3728027 A US3728027 A US 3728027A US 00105457 A US00105457 A US 00105457A US 3728027D A US3728027D A US 3728027DA US 3728027 A US3728027 A US 3728027A
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United States
Prior art keywords
light
boring
magnetic
main body
housing
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Expired - Lifetime
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US00105457A
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English (en)
Inventor
T Watanabe
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Nitto Giken KK
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Nitto Giken KK
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/21—Cutting by use of rotating axially moving tool with signal, indicator, illuminator or optical means
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/55—Cutting by use of rotating axially moving tool with work-engaging structure other than Tool or tool-support
    • Y10T408/554—Magnetic or suction means

Definitions

  • the present invention relates to apparatus for centering for use in boring machines.
  • An object of this invention is to provide a method of centering for boring machines, which facilitates easy and rapid centering operations.
  • Another object of this invention is to provide light projectors for centering.
  • FIG. 1 is a side view of a boring machine with magnetic board provided with one embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a light projector for centering, embodying the present invention
  • FIG. 3 is a cross-sectional view of a modified type of a light projector-for centering
  • FIG. 4 is a perspective view of a disc mounted between a plurality of condensing lenses
  • the light projector for centering 1 13 has a switch 114 and a cord 115.
  • the light projector for centering 1 13 is provided with a light source 123 in a housing 122 provided with a fitting means 121 for the main body 101 of the boring machine. Projected light from the light source is reflected from the surface of a mirror 124 and is focussed by a convex lens 126 provided in a regulation cap 125 at the front of the housing 122.
  • FIG. 5 is a cross-sectional view of another light projector for centering, embodying the present invention.
  • FIG. 6 is a cross-sectional view of the light projector shown in FIG. 5 taken along the line VI VI;
  • FIG. 7 is a cross-sectional view of still another light projector for centering embodying the present invention.
  • FIG. 8 shows crossed filaments used in the embodiment shown in FIG. 7;
  • FIG. 9 shows diagrammatically electric circuits used for a boring machine with a magnetic board.
  • FIG. 10 is a side view of a floor boring machine, embodying the present invention.
  • FIG. 1 shows a boring machine with a magnetic base board consisting of a main body 101, and a vertically movable member 102 which is movably located on the front side of the said main body.
  • a portable boring machine 103 provided with a drill 106 is connected to the said vertically movable member by supporting arms 104 and 105.
  • a handle 107 is pivoted to a side of the main body 101 to move vertically the movable member As shown in FIG. 1, the boring machine with magnetic board 110 is placed on the surface 112 of the material 111 to be perforated.
  • the light projector 113 is adjusted in such a way that the projected light Y from the light projector 113 will focus at a point where an extension line of the center of the drill 106 carried on the boring machine 103 intersects the surface 112 of the material 111 to be perforated. As shown in FIG. 2, this is effected by moving the housing 122 of the light projector 113 and screwing or loosening the regulation cap 125. Then the boring machine with a magnetic board is moved so that the focus 2 of the projected lightY may be adjusted to be projected on the punch mark P provided on the surface 112 of the material to be perforated. When the focus Z is adjusted to the punch mark P, electric current is supplied to the magnetic board 110 to magnetize the same and the boring machine 103 is fixed to the material to be perforated.
  • the boring machine with a magnetic board shown in FIGS. 1 and 2 must be moved on the surface of the material to be perforated l 1 1 for the purpose of centering.
  • the material 133 to be perforated is clamped by a vice 132 provided on a table 131 and is moved so that the focus Z of projected light Y is aligned with a punch mark to be perforated on material 133.
  • the light projector 113 is adjusted in advance in such a way that the projected light Y from the light projector 113 will focus at a point where the extension line X of the drill 106 intersects the surface 134 of the material to be perforated 133.
  • the colored light may be effectively used as a projected light.
  • the light projector 113 may be used as a common illumination device by removing the regulation cap 125 thereof.
  • the present invention facilitates easy and rapid centering for perforation by adjusting a focus of the projected light from a light projector which is controlled properly in advance to a punch mark provided on the surface of a material to be perforated, instead of conventional operations for centering by repeatedly bringing the end of a drill close to a punch mark.
  • Any light projector may be used as a centering apparatus in the present invention.
  • the light. projector shown in FIGS. 3 and 4 is fixed to the main body of a boring machine and adjusted in such a way that a projected light from the light projector will focus as a cross at a point where the extension line of the drill intersects the surface of a material to be perforated.
  • the light projector 141 shown in FIG. 3 comprises an electric bulb 123 installed in a housing 142.
  • a movable body 146 provided with a convex lens for condensing light 143 and a disc 145 having an aperture in the shape of a cross is screwed to the inside of the housing 142.
  • the regulating cylinder 148 provided with a convex lens 147 is located at the end of the housing 142.
  • the projected light Y may be adjusted to focus at a point where the extension line X of the drill 106 intersects the surface of material to be perforated 111 and the precise adjustment of the position of focus Z is conducted by turning the regulating cylinder 148.
  • the aperture in the form of a cross 144 provided in the disc 145 serves to make the focus Z of the projected light Y in a cross, which facilitates the adjustment of the focus to a punch mark provided on the surface of a material to be perforated.
  • the magnetic board 1 When the drill 106 of a boring machine is to be aligned with a punch mark P, the magnetic board 1 is moved to a proper position and fixed or the main body 101 which is provided with a boring machine 104 and mounted on the magnetic board 110 is adjusted, the magnetic board being left as it is. In either way the projected light Y is adjusted to the punch mark P.
  • the housing 152 further comprises convex lenses 157, 158 mounted adjustably at the end of the housing 152, projecting pieces 159, 160 which are fixed to the convex lenses 157, 158 and project outwardly from the long slots 161, 162 provided on the wall of the housing and a partition wall 163 to divide the inside of the housing 152.
  • the convex lenses 157, 158 are adjusted in such a way that light from at least twoelectric bulbs which are provided in such a way that the filaments thereof are perpendicular to each other will cross each other by passing through the lenses.
  • the light from the electric bulbs 153, 154 is hardly darkened because there is nothing in their way and the light crossed by passing through the convex lenses results in a very light cross focus.
  • the convex lenses 157, 158 provided with the projecting pieces 159, 160, projecting outwardly from the long slots 161, 162 of the housing 152 respectively, are movably pivoted to each other, any arbitrary pattern of focus of light is obtained by properly operating the projecting pieces and adjusting the images of filaments in arbitrary shapes.
  • Light projector 171 facilitates the production of light and distinct focus patterns of light in the form of a cross with one electric bulb and an easy adjustment of the focus pattern.
  • Light projector 171 comprises an electric bulb 172 in which two crossed filaments 173, 174 are provided as shown in FIG. 8 and a cylinder 176 provided with aconvex lens ad-. justably mounted at the end of the light projector 171.
  • the light source is in the shape of a cross, a very distinct focus pattern in the shape of a cross is obtained, on a material to be perforated, by adjusting the light in the cylinder 176 provided with convex lens 175 without reducing the intensity of radiation.
  • any circuits may be used for a circuit of the light sources of a light projector.
  • alternating current from an AC power source 181 is rectified to direct current by a rectifier 182 comprising a bridge circuit to magnetize an electromagnet 183.
  • a branched circuit 184 branch from a main circuit is connected to a light projector 113.
  • Light projectors of the present invention are not limited to boring machines for metals but may be applied to any boring machines for wood or for use in offices. Moreover, the present invention is not limited to boring machines having a drill but may be applied to tappings or hand presses, etc., in which a setting position of material to be perforated is indicated instead of focussing at a position where an extension line of a drill intersects the surface of a material to be perforated. Therefore, a plurality of light projectors may be used.
  • a portable magnetic boring machine having a centering device, said boring machine comprising:
  • a vertically movable member (102) movably mounted on the front side of the said main body a portable boring device (103) provided with a boring bit (106), said boring device being connected to said vertically movable member (102) means (107) for vertically moving said vertically movable member (102) and said boring device (103);
  • a centering light projector (113) carried by said main body (101) and projecting a generally crossshaped light beam on said magnetic surface (112), said light projector (113) including a single housing (152;176) a source of light (153,154;172) having a pair of light emitting filaments (155,156;l73,174) angularly arranged with respect to each other, and mounted in said housing (l52;l76) and lens means (l57,158;l75) mounted to said housing for adjustably focusing the light emitted from said filaments into a crosspattern on an extended line of the boring axis of said boring machine to define a boring point; and
  • said main body being slideably movable relative to said magnetic surface (112) in a direction in the plane of said magnetic surface (112) to locate the boring point, said main body being coupled to said magnetic surface by the magnetic attraction of said magnetic base (110) 2.
  • Apparatus according to claim 1 including means for electrically magnetizing said magnetic base after centering to effectively fix the boring machine in the centered position.
  • said source of light is a single electric bulb (172) having a pair of crossed filaments (173,174) therein for emitting a generally cross-shaped light beam.
  • said source of light comprises a pair of electric light bulbs mounted in said housing, said light bulbs having substantially linear filaments which are substantially perpendicular to each other, and wherein said lens means includes a pair of individually adjustable lenses respectively focusing the light from each of said electric bulbs for focusing the light emitted from said electric bulbs into said cross-pattem.
  • Apparatus according to claim 11 wherein said housing includes a partition between said two electric bulbs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00105457A 1970-01-13 1971-01-11 Portable magnetic boring machine having light beam centering device Expired - Lifetime US3728027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP364470 1970-01-13

Publications (1)

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US3728027A true US3728027A (en) 1973-04-17

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US (1) US3728027A (OSRAM)
CA (1) CA945404A (OSRAM)
DE (1) DE2100841A1 (OSRAM)
FR (1) FR2076078B1 (OSRAM)
GB (1) GB1300672A (OSRAM)

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US3941486A (en) * 1974-06-03 1976-03-02 The Computervision Corporation Wire bonder
DE2440226A1 (de) * 1974-08-22 1976-03-04 Bernard Weissman Bohrmaschine
US3969036A (en) * 1975-01-23 1976-07-13 Hougen Everett D Magnetic drill
US4131347A (en) * 1976-04-17 1978-12-26 Bridgestone Tire Company Limited Light beam projecting apparatus
US4372025A (en) * 1981-03-16 1983-02-08 Acf Industries, Incorporated Light source to locate nozzle in tank
US4438567A (en) * 1981-12-07 1984-03-27 Raiha A P Center locator for alignment of work to machine spindle
US4591301A (en) * 1984-12-12 1986-05-27 Black & Decker Inc. Magnetic base machine tool
US4605150A (en) * 1983-12-29 1986-08-12 Nippon Notion Kogyo Co., Ltd. Button setting apparatus with optical position indicator
USD290463S (en) 1984-12-12 1987-06-23 Black & Decker Inc. Base for a magnetic machine tool
US4699186A (en) * 1986-02-26 1987-10-13 Collagen Corporation Laser fill-level indicator for blank syringes
EP0253292A3 (en) * 1986-07-10 1988-09-14 Yoshida Kogyo K.K. Optical position indicator for fastener attaching machine
US4941183A (en) * 1986-08-06 1990-07-10 Durkopp System Technik Gmbh Method and apparatus for optimizing the cutting of material
US5031203A (en) * 1990-02-09 1991-07-09 Trecha Randal R Coaxial laser targeting device for use with x-ray equipment and surgical drill equipment during surgical procedures
US5107709A (en) * 1990-04-02 1992-04-28 Bridgestone/Firestone, Inc. Ultrasonic beam aiming apparatus and method for nondestructive testing
US5118227A (en) * 1990-02-08 1992-06-02 Gregorio Gracia Oscar R Template boring machines
US5267129A (en) * 1992-07-24 1993-11-30 Pnu-Light Tool Works, Inc. Pneumatic lighting apparatus
WO1994022624A1 (en) * 1993-03-30 1994-10-13 Wiklund Ernst S G F Optical device and method for obtaining reference planes, especially for hand-held tools
US5479804A (en) * 1994-09-28 1996-01-02 Clay L. Cook Tools for paintless dent repair
US5773721A (en) * 1996-07-31 1998-06-30 General Electric Company Laser beam aiming apparatus for ultrasonic inspection
US5823720A (en) * 1996-02-16 1998-10-20 Bitmoore High precision cutting tools
US6244086B1 (en) 2000-02-14 2001-06-12 Ultra Dent Tools Hand tool alignment device and method
WO2002083360A1 (de) * 2001-04-18 2002-10-24 Newfrey Llc Positionier- und/oder montagehilfe sowie dementsprechendes verfahren
US6559405B2 (en) 2001-06-12 2003-05-06 General Electric Company Positioning device for welding electrode
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Cited By (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941486A (en) * 1974-06-03 1976-03-02 The Computervision Corporation Wire bonder
DE2440226A1 (de) * 1974-08-22 1976-03-04 Bernard Weissman Bohrmaschine
US3969036A (en) * 1975-01-23 1976-07-13 Hougen Everett D Magnetic drill
US4131347A (en) * 1976-04-17 1978-12-26 Bridgestone Tire Company Limited Light beam projecting apparatus
US4372025A (en) * 1981-03-16 1983-02-08 Acf Industries, Incorporated Light source to locate nozzle in tank
US4438567A (en) * 1981-12-07 1984-03-27 Raiha A P Center locator for alignment of work to machine spindle
US4605150A (en) * 1983-12-29 1986-08-12 Nippon Notion Kogyo Co., Ltd. Button setting apparatus with optical position indicator
US4591301A (en) * 1984-12-12 1986-05-27 Black & Decker Inc. Magnetic base machine tool
USD290463S (en) 1984-12-12 1987-06-23 Black & Decker Inc. Base for a magnetic machine tool
US4699186A (en) * 1986-02-26 1987-10-13 Collagen Corporation Laser fill-level indicator for blank syringes
EP0253292A3 (en) * 1986-07-10 1988-09-14 Yoshida Kogyo K.K. Optical position indicator for fastener attaching machine
US4941183A (en) * 1986-08-06 1990-07-10 Durkopp System Technik Gmbh Method and apparatus for optimizing the cutting of material
US5118227A (en) * 1990-02-08 1992-06-02 Gregorio Gracia Oscar R Template boring machines
US5031203A (en) * 1990-02-09 1991-07-09 Trecha Randal R Coaxial laser targeting device for use with x-ray equipment and surgical drill equipment during surgical procedures
US5107709A (en) * 1990-04-02 1992-04-28 Bridgestone/Firestone, Inc. Ultrasonic beam aiming apparatus and method for nondestructive testing
US5267129A (en) * 1992-07-24 1993-11-30 Pnu-Light Tool Works, Inc. Pneumatic lighting apparatus
WO1994022624A1 (en) * 1993-03-30 1994-10-13 Wiklund Ernst S G F Optical device and method for obtaining reference planes, especially for hand-held tools
US5667345A (en) * 1993-03-30 1997-09-16 Wiklund; Ernst Sigurd Gustaf Folke Optical device and method for obtaining reference planes, especially for hand-held tools
US5479804A (en) * 1994-09-28 1996-01-02 Clay L. Cook Tools for paintless dent repair
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FR2076078B1 (OSRAM) 1974-10-11
GB1300672A (en) 1972-12-20
CA945404A (en) 1974-04-16
FR2076078A1 (OSRAM) 1971-10-15
DE2100841A1 (de) 1971-08-26

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