US3641709A - Machines for removing surface cracks and flaws from rough steel products - Google Patents

Machines for removing surface cracks and flaws from rough steel products Download PDF

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Publication number
US3641709A
US3641709A US51619A US3641709DA US3641709A US 3641709 A US3641709 A US 3641709A US 51619 A US51619 A US 51619A US 3641709D A US3641709D A US 3641709DA US 3641709 A US3641709 A US 3641709A
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United States
Prior art keywords
frame structure
swivel
actuator
swivel bracket
arm
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Expired - Lifetime
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US51619A
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English (en)
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Georges Gazuit
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • B24B27/04—Grinding machines or devices in which the grinding tool is supported on a swinging arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only

Definitions

  • ABSTRACT Machine for removing surface cracks and flaws from steelwork products which comprises a rotary grinding wheel adapted to perform a rectilinear horizontal movement of translation, advantageously of alternating type, at an adjustable height.
  • the outer end of the swivel horizontal radial arm of an upright rotatably mounted about a vertical axis on the frame structure of the machine carries a swivel bracket trunnioned about a vertical axis and maintained in a fixed direction by a link interconnecting a pair of studs rigid the one with said frame structure and the other with said swivel bracket.
  • a beam adapted to pivot about a horizontal pivot pin rigid with said swivel bracket has a upper end connected to one point of said swivel bracket through a first actuator and a lower end pivoted to an arm supporting the grinding wheel at a height determined by another actuator connecting one point of said wheel carrier arm to one point of said swivel bracket.
  • SHEET 1 [IF 2 MACHINES FOR REMOVING SURFACE CRACKS AND F LAWS FROM ROUGH STEEL PRODUCTS BACKGROUND OF THE INVENTION
  • This invention relates to a chipper or like machine of the type used in steelworks for eliminating surface cracks and flaws of rough steel products, this machine comprising essentially a rotary grinding wheel adapted to perform a rectilinear, horizontal and advantageously alternating movement at an adjustable height.
  • the object of this invention is to provide a machine of this type wherein the various parts are movable in relation to each other only by pivoting about assembling pins, any slideway mounting being definitely precluded.
  • the advantageous feature characterizing this machine is that wear and tear of parts in relative movement in a particularly corrosive medium are reduced considerably, while permitting a substantial acceleration of the movements performed by the grinding wheel.
  • the outer end of the swivel horizontal radial arm of an upright rotatably mounted about a vertical axis on the frame structure of the machine carries a swivel bracket trunnioned about a vertical axis and maintained in a constant direction by a link interconnecting a pair of studs rigid the one with said frame structure and the other with said swivel bracket, and a beam fulcrumed to a horizontal pivot pin rigid with said swivel bracket has an upper end connected to one point of said swivel bracket through a first actuator and a lower end pivoted to an arm supporting the grinding wheel at a height determined by another actuator connecting one point ofsaid wheel carrier arm to one point of said swivel bracket.
  • means are provided for automatically controlling the first actuator in a manner responsive to the pivoting movement of said horizontal arm on said frame structure so that the movements of horizontal translation impressed to the grinding wheel are rectilinear movements.
  • FIG. I is a lateral elevational view with parts shown in vertical section taken along a mesial plane of the radial arm and along the mesial plane of the beam;
  • FIG. 2 is a corresponding plan view from above
  • FIG. 3 is an explanatory diagram concerning the arrangement of FIG. 1;
  • FIG. 4 is another explanatory diagram showing in thick lines the grinding wheel positions for the radial arm orientation shown in FIG. 2 and in dash lines the wheel positions for other orientations ofthis arm;
  • FIG. 5 is a similar diagram showing the grinding wheel positions after a movement for controlling the inclination of the wheel axis in relation to its direction of translation;
  • FIG. 6 is a diagrammatic view showing on a larger scale and more completely details of the arrangement of FIG. 3.
  • a beam L Pivoted to a horizontal pin C rigid with said swivel bracket J is a beam L having its upper end pivoted at E to the rod of an actuator V, having its body or cylinder pivotally mounted to said swivel bracket J.
  • Pivoted to the lower end D of said beam is an arm M having an intermediate point connected through another actuator V to a point G of said swivel bracket J, the outer end of said arm M supporting the shaft of the grinding wheel N.
  • actuator V By operating two other actuators V, and V, interconnecting two points rigid with the swivel radial arm I to two points rigid with the frame structure of the machine, the pivotal movements of this arm can be controlled at will.
  • Each angular movement of arm M causes the grinding wheel N to perform a horizontal movement of translation. If the actuator V, were not operated, this movement of translation would be a circular movement.
  • the hydrostatic feed arrangement of actuator V is contemplated as illustrated in FIG. 6 and comprises another actuator V carried by the upright swivel arm I of the machine, this other actuator V has its rod engaged against the contour of a cam O rigid with the frame structure H.
  • the connecting point A, of the link may be rigidly fastened to the frame structure of the machine by means of a strap AA, QEIG. 2) rotatably mounted about the swivel axis A of the machine upright and retained in the desired position by an actuator V reacting against the frame structure H.
  • a strap AA, QEIG. 2 rotatably mounted about the swivel axis A of the machine upright and retained in the desired position by an actuator V reacting against the frame structure H.
  • Machine for removing surface cracks and flaws from steelwork products comprising a frame structure, an upright rotatably mounted on the frame structure about a vertical axis, and having a swivel horizontal radial arm with an outer end, a swivel bracket trunnioned about a vertical axis on said outer end of the swivel horizontal radial arm, a pair of studs rigid the one with the frame structure and the other with the swivel bracket a link interconnecting said studs and maintaining the swivel brackets in a fixed direction, a beam pivotally mounted about an horizontal axis on the swivel bracket, said beam having an upper end, and a lower end, a first actuator carried by the swivel bracket and connected to the upper end of the beam, an arm pivotally carried about an horizontal axis by the lower end of the beam, a carrier rigidly mounted on said arm, an other actuator connecting said carrier with the swivel bracket and determining the
  • the first actuator is an hydrostatic actuator and comprising a third actuator carried by the swivel arm and having a piston rod engaged against the contour of a cam rigid with the frame structure, said third actuator hydrostatically controlling the first actuator, in a manner responsive to the swiveling movement of the swivel arm and maintaining zero the displacements of the carrier in respect of the fixed direction of the swivel bracket.
  • Machine according to claim 1 comprising a fourth actuator and a fifth actuator connecting the swivel radial arm to the frame structure to control the swiveling movements of said swivel radial arm in respect to the frame structure.
  • Machine according to claim 1 comprising a strap pivotaliy mounted on the frame structure about the vertical axis of the upright. a sixth actuator connecting said strap to the frame structure, said strap carrying the one stud rigid with the frame structure and thus of reguiatable position on said 5 frame structure.
US51619A 1969-08-01 1970-07-01 Machines for removing surface cracks and flaws from rough steel products Expired - Lifetime US3641709A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6926539A FR2055862A5 (ja) 1969-08-01 1969-08-01

Publications (1)

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US3641709A true US3641709A (en) 1972-02-15

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US51619A Expired - Lifetime US3641709A (en) 1969-08-01 1970-07-01 Machines for removing surface cracks and flaws from rough steel products

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US (1) US3641709A (ja)
JP (1) JPS4924958B1 (ja)
BE (1) BE741490A (ja)
DE (1) DE1958939C3 (ja)
ES (1) ES378723A1 (ja)
FR (1) FR2055862A5 (ja)
GB (1) GB1229089A (ja)
LU (1) LU59782A1 (ja)
NL (1) NL7000083A (ja)
SE (1) SE344699B (ja)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928946A (en) * 1975-05-14 1975-12-30 Virgil J Wynn Three axis adjustable disc sander
US3953942A (en) * 1974-02-15 1976-05-04 Bridgestone Tire Company Limited Apparatus for grinding inner surface of a vehicle tire
US4018007A (en) * 1974-05-02 1977-04-19 Nippon Toki Kabushiki Kaisha Apparatus for grinding surface portions of thick plates
US4018013A (en) * 1974-05-02 1977-04-19 Nippon Toki Kabushiki Kaisha Method for grinding surface portions of thick plates
US4020598A (en) * 1974-12-06 1977-05-03 Etablissements Zelant Gazuit Method of measuring the radius of a rotating grinding wheel and device therefor
US4055918A (en) * 1975-06-10 1977-11-01 Centro-Maskin Goteborg Ag Grinding machine
US4062151A (en) * 1975-10-08 1977-12-13 Sunds Aktiebolag Billet grinding machine
US4074982A (en) * 1976-02-20 1978-02-21 Fried Krupp Huttenwerke Ag Process and means for grinding out faults in the surface of a work piece
US4121384A (en) * 1976-07-01 1978-10-24 Etablissements Zelant, Gazuit Grinding-path compensating device for crack and flaw removing machine
US4209948A (en) * 1976-12-07 1980-07-01 Western Gear Corporation Workpiece conditioning grinder system
US4283886A (en) * 1977-06-27 1981-08-18 Western Gear Corporation Workpiece conditioning grinder system
US4468892A (en) * 1981-07-17 1984-09-04 Itm International Tool Machines, Inc. Grinding machine
US4524545A (en) * 1981-07-17 1985-06-25 Itm International Tool Machines Inc. Grinding machine
US4665542A (en) * 1985-07-29 1987-05-12 The Machlett Laboratories, Inc. Spot film device leveling mechanism
US4716685A (en) * 1984-07-30 1988-01-05 Nippon Flakt K.K. Apparatus for abrasively treating the surfaces of automobile bodies
US5070654A (en) * 1988-10-17 1991-12-10 C.M.E. Blasting & Mining Equipment, Ltd. Self-centering arrangement for grinding the hardmetal pins of drill bits
US20040014406A1 (en) * 2000-07-10 2004-01-22 Robert Sjolander Grinding apparatus
US7611401B1 (en) * 2005-09-30 2009-11-03 Column & Post, Inc. Mount for a belt-sanding apparatus
US20120022681A1 (en) * 2009-03-19 2012-01-26 Guenter Schiller Method and apparatus for grinding a continuously casting product
US10058976B2 (en) 2016-11-11 2018-08-28 Att Technology, Ltd. Hardbanding removal device and method
CN113523949A (zh) * 2021-09-09 2021-10-22 江苏科华新材料有限公司 一种绝缘玻纤板孔槽去毛刺精加工装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037571A1 (de) * 1980-10-04 1982-04-22 Thyssen Edelstahlwerke AG, 4000 Düsseldorf Verfahren zum mechanischen abtragen von material von stahlstrangguss-oberflaechen und schleifvorrichtung
AU3583084A (en) * 1983-12-10 1985-06-13 Aida Engineering Ltd. Playback grinding robot
FR2619043B1 (fr) * 1987-08-05 1994-08-05 Electricite De France Porte-meuleuse a verin pneumatique pour robot
WO1989007500A1 (en) * 1988-02-12 1989-08-24 August Sandstad Device for finishing cast iron

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704913A (en) * 1952-10-02 1955-03-29 Norton Co Snagging grinder
US2718732A (en) * 1952-05-01 1955-09-27 Norton Co Snagging grinder
US2769280A (en) * 1953-07-22 1956-11-06 Norton Co Grinding apparatus, particularly for grinding billets and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718732A (en) * 1952-05-01 1955-09-27 Norton Co Snagging grinder
US2704913A (en) * 1952-10-02 1955-03-29 Norton Co Snagging grinder
US2769280A (en) * 1953-07-22 1956-11-06 Norton Co Grinding apparatus, particularly for grinding billets and the like

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953942A (en) * 1974-02-15 1976-05-04 Bridgestone Tire Company Limited Apparatus for grinding inner surface of a vehicle tire
US4018007A (en) * 1974-05-02 1977-04-19 Nippon Toki Kabushiki Kaisha Apparatus for grinding surface portions of thick plates
US4018013A (en) * 1974-05-02 1977-04-19 Nippon Toki Kabushiki Kaisha Method for grinding surface portions of thick plates
US4020598A (en) * 1974-12-06 1977-05-03 Etablissements Zelant Gazuit Method of measuring the radius of a rotating grinding wheel and device therefor
US3928946A (en) * 1975-05-14 1975-12-30 Virgil J Wynn Three axis adjustable disc sander
US4055918A (en) * 1975-06-10 1977-11-01 Centro-Maskin Goteborg Ag Grinding machine
US4062151A (en) * 1975-10-08 1977-12-13 Sunds Aktiebolag Billet grinding machine
US4074982A (en) * 1976-02-20 1978-02-21 Fried Krupp Huttenwerke Ag Process and means for grinding out faults in the surface of a work piece
US4121384A (en) * 1976-07-01 1978-10-24 Etablissements Zelant, Gazuit Grinding-path compensating device for crack and flaw removing machine
US4209948A (en) * 1976-12-07 1980-07-01 Western Gear Corporation Workpiece conditioning grinder system
US4283886A (en) * 1977-06-27 1981-08-18 Western Gear Corporation Workpiece conditioning grinder system
US4524545A (en) * 1981-07-17 1985-06-25 Itm International Tool Machines Inc. Grinding machine
US4468892A (en) * 1981-07-17 1984-09-04 Itm International Tool Machines, Inc. Grinding machine
US4716685A (en) * 1984-07-30 1988-01-05 Nippon Flakt K.K. Apparatus for abrasively treating the surfaces of automobile bodies
US4665542A (en) * 1985-07-29 1987-05-12 The Machlett Laboratories, Inc. Spot film device leveling mechanism
US5070654A (en) * 1988-10-17 1991-12-10 C.M.E. Blasting & Mining Equipment, Ltd. Self-centering arrangement for grinding the hardmetal pins of drill bits
US20040014406A1 (en) * 2000-07-10 2004-01-22 Robert Sjolander Grinding apparatus
US7198556B2 (en) * 2000-07-10 2007-04-03 C.M.E. Blasting & Mining Equipment Ltd. Grinding apparatus
US7611401B1 (en) * 2005-09-30 2009-11-03 Column & Post, Inc. Mount for a belt-sanding apparatus
US20120022681A1 (en) * 2009-03-19 2012-01-26 Guenter Schiller Method and apparatus for grinding a continuously casting product
US8708775B2 (en) * 2009-03-19 2014-04-29 Sms Logistiksysteme Gmbh Method and apparatus for grinding a continuously casting product
US10058976B2 (en) 2016-11-11 2018-08-28 Att Technology, Ltd. Hardbanding removal device and method
US10525565B2 (en) 2016-11-11 2020-01-07 Att Technology, Ltd. Method of removing hardbanding from pipe
CN113523949A (zh) * 2021-09-09 2021-10-22 江苏科华新材料有限公司 一种绝缘玻纤板孔槽去毛刺精加工装置
CN113523949B (zh) * 2021-09-09 2021-12-07 江苏科华新材料有限公司 一种绝缘玻纤板孔槽去毛刺精加工装置

Also Published As

Publication number Publication date
DE1958939B2 (de) 1972-07-06
NL7000083A (ja) 1971-02-03
LU59782A1 (ja) 1970-01-13
DE1958939A1 (de) 1971-11-18
JPS4924958B1 (ja) 1974-06-26
GB1229089A (ja) 1971-04-21
BE741490A (ja) 1970-04-16
SE344699B (ja) 1972-05-02
DE1958939C3 (de) 1973-01-25
ES378723A1 (es) 1972-06-16
FR2055862A5 (ja) 1971-05-14

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