US3742801A - Shearing machine - Google Patents

Shearing machine Download PDF

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Publication number
US3742801A
US3742801A US00196959A US3742801DA US3742801A US 3742801 A US3742801 A US 3742801A US 00196959 A US00196959 A US 00196959A US 3742801D A US3742801D A US 3742801DA US 3742801 A US3742801 A US 3742801A
Authority
US
United States
Prior art keywords
eccentric
apron
axis
movable apron
axes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00196959A
Other languages
English (en)
Inventor
P Cailloux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Promecam Sisson Lehmann SA
Original Assignee
Promecam Sisson Lehmann SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Promecam Sisson Lehmann SA filed Critical Promecam Sisson Lehmann SA
Application granted granted Critical
Publication of US3742801A publication Critical patent/US3742801A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/06—Sheet shears
    • B23D15/08—Sheet shears with a blade moved in one plane, e.g. perpendicular to the surface of the sheet
    • 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
    • B23D33/00—Accessories for shearing machines or shearing devices
    • B23D33/10—Stops for positioning work
    • 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
    • Y10T83/00—Cutting
    • Y10T83/566—Interrelated tool actuating means and means to actuate work immobilizer
    • Y10T83/5815—Work-stop abutment
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8696—Means to change datum plane of tool or tool presser stroke
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8817—Axially entending cutting edge
    • Y10T83/882—Adjustable
    • 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
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9488—Adjustable
    • Y10T83/949—Rectilinearly

Definitions

  • the shafts materializing these two axes are operatively interconnected through means capable of correcting the position of said abutment device when the clearance between the blades is modified' by pivoting the eccentric hinge shaft of said movable apron.
  • the present invention relates to hydraulic shearing machines for cutting sheet metal, of the type comprising an apron to which the movable blade is secured.
  • This apron may be arranged at the upper portion of the machine for cutting the metal sheets by means of a downward stroke or movement.
  • the reverse apron disposal may also be contemplated, and in this case the metal is cut by producing an upward movement or stroke.
  • the hinge axis of the movable apron is located behind the uprights of the frame structure of the machine.
  • This invention is concerned more particularly with shearing machines of this type, wherein the movable apronis hingedly mounted about an eccentric rotary shaft of which the angular position is adjustable to permit a modification in the initial clearance between the blades.
  • this invention aims at providing a number of improvements in shearing machines of this general type.
  • the first improvement contemplated according to this invention consists inobtaining through very simple means the automatic backward movement of the sheet abutment device during the cutting or shearing operation, by mounting this device on a hinge shaft carried by the movable apron but separate from the hinge shaft proper of this apron.
  • the abutment device is either kept in a constant position in this case, or moved forwards or backwards, in a predetermined ratio, as a function of the adjustment of the blade clearance.
  • the pivot member of the abutment device is also mounted about an eccentric shaft or pin and on the other hand connecting means, capable of correcting the position of said abutment device when the initial clearance between the blades is modified by rotating said eccentric shaft or pin, are provided between said pivot member and said eccentric shaft or pin.
  • FIG. 1 is a cross-sectional view showing the shearing machine according to this invention
  • FIG. 2 is a fragmentary view showing on a different scale the hinged mounting of the movable apron and of the abutment device, this view corresponding to a section taken along the line II-II of FIG. 1;
  • FIG. 3 is a corresponding diagrammatic elevational view; and FIGS. 4 and 5 are views similar to FIGS. 2 and 3 and illustrate a modified embodiment.
  • the hydraulic shearing machine illustrated in the drawing comprises a pair of side plates 1 braced by a box-sectioned member 2 and stiffened by an inclined plate 3 welded to said member 2 and stiffened by an inclined plate 3 welded to said member 2 and to the upper fixed apron 4 in order to form the frame structure of this machine.
  • the apron 4 carries a fixed blade 5 secured to the lower edge of its rear face, as shown in FIG. 1.
  • the movable blade 6 is secured to the upper edge of a support 7 constituting an element of the movable apron structure 8 of the machine.
  • the movable blade 6 is disposed behind the sheet clamping members 9 overlying the table orworkingbed 10 of the machine.
  • a motor and pump unit 1 1 adapted to supply hydraulic fluid under pressure to the hydraulic circuit (not shown) controlling the piston and cylinder units 12 actuating the movable apron 8.
  • the movable apron 8 comprises a pair of lateral plates 13 assembled by the blade support 7 and also by a box-sectioned member 14 having an inclined upper face or top constituting a chute for removing the cut metal strips or blanks.
  • This movable apron 8 is pivotally mounted on either side to an eccentric ring 15 adapted to rotate in turn about a stub shaft 16 carried by the corresponding lateral plate 1 of the frame structure of the machine.
  • a rolling-contact bearing 17 is interposed between the corresponding portion of the movable apron 18 and each ring 15.
  • Each ring 15 carries a control lever 18 so that the angular position of the two rings may be modified at will to change the initial clearance existing between the movable blade 6 and the fixed blade 5.
  • the control lever 18 is rigid with a lock pin 19 engageable in either .of a series of retaining holes formed in a fixed plate 20 rigidwith the corresponding side plate 1 of the frame structure.
  • the movable apron can be locked in the position corresponding to the desired clearance between the twoblades of the machine.
  • the-sheet abutment device 21 is mounted on a support consisting of a pair of rails 22 having their rear ends pivoted to the movable apron at a point 23 overlying the general hinge shaft 16 of this apron.
  • these two rails are moved backwards when the movement of the movable apron is started for cutting or shearing the metal stock.
  • the abutment members are caused to recede automatically during the shearing operation.
  • the correction device contemplated is so designed that in case of such modification in the play between the blades it will either keep the abutment device 21 in a constant position or move same forwards or backwards as a function of the modified adjustment of the blade clearance, in a predetermined ratio.
  • the rails 22 carrying the abutment members are each pivoted about an eccentric socket 24 mounted for free rotation on a pin 23 carried by the movable apron 8.
  • connecting means are provided between this socket 24 and the eccentric ring 15 on which the apron is pivoted, in order to correct the position of the support of said abutment members.
  • These connecting means may comprise a toothed pinion 25 rigidly connected to the ring 15 through an end cap 26 and in constant meshing engagement with a toothed segment 27 rigid in turn with the eccentric socket 24.
  • the correction thus obtained may have a twofold purpose: either maintaining the abutment members in a constant position, or producing their movement in a predetermined ratio.
  • the shearing machine according to this invention is adapted to be used for shearing sheets of any metal.
  • this shearing machine should not be construed as being limited by the specific form of embodiment illustrated and described herein, since various modifications and variations may be brought thereto without departing from the basic principles of this invention.
  • the movable apron of the shearing machine illustrated may if desired be mounted in the upper portion instead of the lower portion of the machine.
  • Hydraulic sheet-metal shearing machine comprising a structure, a movable apron pivotally mounted on said structure about an eccentric axis, two shearing blades which are solid respectively with said structure and with said apron, an abutment device for the sheet to be sheared, a support for said device, said support being hingedly mounted to the movable apron about an axis shifted in relation to the pivotal axis thereof, and which has an eccentric position, connecting means between said axes, said means being adapted to correct the position of said abutment device when the clearance between the blades is modified by pivoting the eccentric hinge axis of said movable apron.
  • Hydraulic shearing machine in which said connecting means provided between said eccentric axes of the movable apron and of the support of said abutment device consist of a toothed pinion rigid with one of these axes and in constant meshing engagement with a free toothed pinion in meshing engagement with a toothed segment rigid with the others axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Details Of Cutting Devices (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Control Of Cutting Processes (AREA)
US00196959A 1970-11-13 1971-11-09 Shearing machine Expired - Lifetime US3742801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7040579A FR2114032A5 (fr) 1970-11-13 1970-11-13

Publications (1)

Publication Number Publication Date
US3742801A true US3742801A (en) 1973-07-03

Family

ID=9064074

Family Applications (1)

Application Number Title Priority Date Filing Date
US00196959A Expired - Lifetime US3742801A (en) 1970-11-13 1971-11-09 Shearing machine

Country Status (13)

Country Link
US (1) US3742801A (fr)
JP (1) JPS5039271B1 (fr)
AT (1) AT317644B (fr)
CA (1) CA964988A (fr)
CH (1) CH541379A (fr)
DE (1) DE2155641A1 (fr)
DK (1) DK127960B (fr)
ES (1) ES396926A1 (fr)
FR (1) FR2114032A5 (fr)
GB (1) GB1367154A (fr)
IT (1) IT941119B (fr)
NL (1) NL7115615A (fr)
ZA (1) ZA717446B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019313A (en) * 1989-02-16 1991-05-28 Mobil Oil Corporation Method for molding containers and forming hole therein
US5852964A (en) * 1996-10-02 1998-12-29 Murata Kikai Kabushiki Kaisha Safety mechanism for right angle shear
WO2008052656A1 (fr) 2006-10-31 2008-05-08 Sms Demag Ag Procédé et dispositif de division de bande métallique
CN107662020A (zh) * 2017-10-17 2018-02-06 爱克(苏州)机械有限公司 一种数控自动送料分度剪板机
CN108500361A (zh) * 2018-03-20 2018-09-07 晋江盾研机械设计有限公司 一种用于五金板材的切割装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460180A1 (fr) * 1979-07-05 1981-01-23 Promecan Sisson Lehmann Dispositif indicateur de cote destine a equiper une machine-outil de formage ou de cisaillage de metaux en feuilles
EP0039381A1 (fr) * 1980-04-23 1981-11-11 Beyeler Machines S.A. Procédé et dispositif de coupe pour matériaux lourds
CN110744119B (zh) * 2019-11-18 2020-07-03 柳州巨东激光科技股份有限公司 一种金属薄板的切割装置
CN113996854B (zh) * 2021-10-18 2022-07-19 芜湖银鹤机械制造有限公司 具有智能托举装置的剪板机智能辅助机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT603808A (fr) *
GB805806A (en) * 1955-12-05 1958-12-10 Eumuco Ag Fur Maschb An improved workpiece feed control device for use with billet shears
US3260145A (en) * 1962-06-08 1966-07-12 Giordano Roger Francois Guillotines for shearing plate materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT603808A (fr) *
GB805806A (en) * 1955-12-05 1958-12-10 Eumuco Ag Fur Maschb An improved workpiece feed control device for use with billet shears
US3260145A (en) * 1962-06-08 1966-07-12 Giordano Roger Francois Guillotines for shearing plate materials

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019313A (en) * 1989-02-16 1991-05-28 Mobil Oil Corporation Method for molding containers and forming hole therein
US5852964A (en) * 1996-10-02 1998-12-29 Murata Kikai Kabushiki Kaisha Safety mechanism for right angle shear
WO2008052656A1 (fr) 2006-10-31 2008-05-08 Sms Demag Ag Procédé et dispositif de division de bande métallique
CN101541459B (zh) * 2006-10-31 2012-01-04 Sms西马格股份公司 用于分割金属带材的方法和装置
AU2007315325B2 (en) * 2006-10-31 2012-03-22 Sms Siemag Aktiengesellschaft Method and device for dividing metal strip
CN107662020A (zh) * 2017-10-17 2018-02-06 爱克(苏州)机械有限公司 一种数控自动送料分度剪板机
CN108500361A (zh) * 2018-03-20 2018-09-07 晋江盾研机械设计有限公司 一种用于五金板材的切割装置

Also Published As

Publication number Publication date
IT941119B (it) 1973-03-01
AT317644B (de) 1974-09-10
NL7115615A (fr) 1972-05-16
ES396926A1 (es) 1975-03-01
GB1367154A (en) 1974-09-18
DK127960B (da) 1974-02-11
CH541379A (fr) 1973-09-15
ZA717446B (en) 1972-09-27
JPS5039271B1 (fr) 1975-12-16
FR2114032A5 (fr) 1972-06-30
DE2155641A1 (de) 1972-05-18
CA964988A (en) 1975-03-25

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