US3884142A - Machine frame, having a biased wire girdle, and a method for biasing such a girdle - Google Patents

Machine frame, having a biased wire girdle, and a method for biasing such a girdle Download PDF

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Publication number
US3884142A
US3884142A US431874A US43187474A US3884142A US 3884142 A US3884142 A US 3884142A US 431874 A US431874 A US 431874A US 43187474 A US43187474 A US 43187474A US 3884142 A US3884142 A US 3884142A
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United States
Prior art keywords
girdle
frame
frame member
machine
machine frame
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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
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US431874A
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English (en)
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Finn Lennart Jonsson
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Carbox AB
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Carbox AB
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Publication date
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Publication of US3884142A publication Critical patent/US3884142A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/042—Prestressed frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/047—C-shaped frames
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53996—Means to assemble or disassemble by deforming

Definitions

  • the girdle is mounted on the frame before the wire has been biased and the biasing is effected by expansion of the girdle.
  • the expansion is carried out by means acting between the frame and the girdle which eliminates the need for expanding the frame by displacing a portion thereof relatively to the remainder of the frame.
  • the present invention relates to heavy machines, such as presses and especially gap presses, comprising a frame provided with a tension-biased wire girdle.
  • the first step is to mount the holder, or bobbin, on the frame and then to apply the wire winding onto the bob bin during which procedure the wire is, under tension bias, delivered from a stationary spool.
  • This requires that all, or in any case the major part. of the machine frame participates in the rotational movement of the bobbin.
  • the frame is generally placed on the working table of a big vertical turning lathe.
  • a machine frame the different parts of which are either rigidly interconnected or do, at any rate, occupy constant relative positions, is, during the winding process, in consequence of the tensional force in the wire subjected to a successively increased compression.
  • the second method involves that the machine frame, surrounded by the completed and, in principle, unbiased winding, is expanded so that the corresponding deformation of the bobbin results in a stretching of the wires and hence in the generation of a biasing force.
  • the prior art way of causing that expansion was as follows. Let it be assumed that the frame comprises two horizontal yokes spaced by a number of columns.
  • At least one of the yokes is mounted with preserved freedom of movement relatively to the remainder of the frame and then caused to move a small distance away therefrom resulting in an increase of the net circumference of the bobbin which stretching in turn pre-stresses the wires carried by the bobbin.
  • the only realistic possibility of effecting that displacement of the yoke has been considered to consist in relying on the operational equipment of the machine. Accordingly, assuming that the machine is a hydraulic press, the hydraulic cylinder thereof has been utilized. lt was, however, explained above that the biasing force should exceed the reactional forces generated in the operation of the machine.
  • the main object of the invention is generally to facilitate the biasing of a prepared wire winding mounted on a machine frame.
  • Another object of the invention is to make it possible to bias the winding without relying on the hydraulic cylinder of the machine.
  • a further object of the invention is to provide simple and cheap means for carrying out the biasing operation.
  • a still further object of the invention is to make it possible directly to set the biasing at the required value and, if necessary, subsequently in a simple and quick way to readjust the biasing.
  • a machine frame designed in accordance with the characteristics of the invention comprises forcegenerating means acting between the frame of the machine and the girdle which surrounds it and which supports the wires to be pre-stressed.
  • the invention will below be explained in greater detail with reference to the accompanying drawing but it should be inserted here that the term wire has been used throughout this specification because the biasing elements are generally of circular cross-section. It is, however, evident that the cross-sectional shape of those elements is'not concerned with the present invention. Consequently, it is equally applicable also when the biasing elements of the girdle are constituted by tapes or have some other profile.
  • FIG. 1 is a perspective view of the press.
  • FIGS. 2 and 3 correspond to each other and do both show a transverse vertical view. While FIG. 2 illustrates the wire girdle before assembly of the bias-generating means, FIG. 3 refers to the assembled state of the frame and is a section taken along the line III-III in FIG. 1.
  • FIG. 3a is a vector diagram graphically illustrating up-stepping of the applied expansion forces.
  • FIG. 4 is a section taken along line IV-IV in FIG. 3.
  • the press illustrated in the drawing has a frame carried by a conventional base consisting of two feet 1 and 2.
  • the frame comprises a lower yoke 3 and an upper yoke 4.
  • the two yokes are spaced by two vertical columns 5 and 6.
  • Column 5 interconnects two opposite yoke ends whereas column 6 is located centrally between the ends of each of the yokes.
  • those yoke ends carry the tools of the gap press which are constituted by a die 7 and a piston 8.
  • the latter is mounted for reciprocating movement in a double-acting hydraulic cylinder 9.
  • Reference numerals l0 and 11 designate the pipe connections for the hydraulic fluid.
  • the machine frame is, at the central column 6, surrounded by a wire girdle 12 which occupies a transverse position relatively to the frame.
  • the girdle consists of a wire holder, or bobbin, 13 of channel-shaped cross-section which houses several wire layers 14. However, for ease of illustration the girdle shown in FIG. 4 is assumed to comprise only three layers of heavy wires 14.
  • the wires consist of a special steel alloy exhibiting high tensile strength.
  • the plane bottom and top surfaces of yokes 3 and 4 and, on the other, the bottom and top inner wall portions of the oval girdle 12 there are located crescentshaped spacers 15 and 16 see particularly FIGS. 2 and 3.
  • the frame so far described belongs to the prior art. However, according to the invention there are between the central column 6 and each of the lateral inner walls of bobbin 13 mounted means permitting pre-stressing of wires 14. As has been explained above, the prestressing is achieved by expansion of the girdle after is has, in a substantially unbiased condition, been mounted around the machine frame.
  • the expansion means are constituted by two pairs of wedges 17, 18 and 19, 20 which are located at opposite sides of column 6 in the spaces between the column and the inner wall of bobbin 13.
  • FIG. 4 does clearly illustrate the operation of the wedges but it should be mentioned that in order to illustrate the corresponding point the active angles of the wedges have been greatly exaggerated.
  • wedges corresponds to a preferred embodiment of the invention only and that the generic inventive idea is based on the realization that it is possible, without altering the relative positions of the various frame components, the yokes and the columns, to achieve the desired pre-stressing of the wires by subjecting the girdle to a force acting perpendicularly to the winding direction of the wires and applied near and parallel to the minor axis of the approximately elliptic or oval girdle.
  • FIGS. 2 and 3 A comparison of FIGS. 2 and 3 indicates that, subsequent to the assembly and actuation of wedges 17-20, the bobbin has been deformed in the sense that its minor axis has been extended. After that extension the lateral walls of the bobbin are no longer vertical but form a small angle with the vertical plane. Also for the purpose of illustration the corresponding angle has been exaggerated as are the wedge angles in FIG. 4. In practice the deviation from the vertical plane amounts to about 510.
  • FIG. 3a there is shown a parallelogram of forces in which component A corresponds to the transverse force applied to the bobbin, component C to the reactional force absorbed by column 6 and vector B to the resulting force which accordingly is representative of the pre-stressing of wires 14.
  • a second advantage is that one has easy access to the places where the wedges or the corresponding expansion means are mounted for which reason that work can be carried out in a simple way and at low costs.
  • the increased rigidity of the frame guarantees an even and uniform contact pressure between the different parts of the frame and, to the extent it will be necessary to readjust the wire tension, such an operation can easily be carried out.
  • it is in practice often preferred to avoid permanent interconnection of the heavy frame parts meaning that they are held together solely by the biased girdle. in machine frames of that type application of the invention results in the further advantage that it is no longer necessary provisionally to support the frame portions during the pre-stressing stage. The need for such a support in the application of the known method has two grounds.
  • a method of making a machine frame, particularly for heavy presses comprising the steps of:
  • a machine frame particularly for heavy presses, comprising:
  • a frame member a girdle including bias elements surrounding said frame member for applying compressional forces to said frame member to counteract outwardly directed reactional forces to which said frame member is exposed in the operation of the machine.
  • girdle expansion means mounted between said girdle and said frame member for expanding said girdle subsequent to said girdle being mounted on said frame member, the biasing of said bias elements being generated by expansion of said girdle under the influence of said girdle expansion means.
  • a machine frame as claimed in claim 4 wherein said girdle expansion means comprises wedge means mounted between said girdle and said column.
  • a machine frame as claimed in claim 5 wherein said wedge means comprises wedge members mounted on respective opposite sides of said column and engaging respective portions of said girdle.
  • said girdle comprises a plurality of wires adjacent each other and surrounding said frame member, said wires comprising said bias elements.
  • a machine frame particularly for heavy presses, comprising:
  • a girdle including bias elements surrounding said frame member for applying compressional forces to said frame member to counteract outwardly directed reactional forces to which said frame member is exposed in the operation of the machine, and wedge means mounted between said frame member and said girdle for expanding said girdle. thereby causing said bias elements to generate a biasing force.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US431874A 1973-01-19 1974-01-09 Machine frame, having a biased wire girdle, and a method for biasing such a girdle Expired - Lifetime US3884142A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7300775-A SE364469B (enrdf_load_stackoverflow) 1973-01-19 1973-01-19

Publications (1)

Publication Number Publication Date
US3884142A true US3884142A (en) 1975-05-20

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US431874A Expired - Lifetime US3884142A (en) 1973-01-19 1974-01-09 Machine frame, having a biased wire girdle, and a method for biasing such a girdle

Country Status (5)

Country Link
US (1) US3884142A (enrdf_load_stackoverflow)
JP (1) JPS5019066A (enrdf_load_stackoverflow)
DE (1) DE2401856A1 (enrdf_load_stackoverflow)
FR (1) FR2214584B1 (enrdf_load_stackoverflow)
SE (1) SE364469B (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992837A (en) * 1974-07-29 1976-11-23 Allmanna Svenska Elektriska Aktiebolaget Press stand
US4073180A (en) * 1975-04-03 1978-02-14 Pahnke Engineering G.M.B.H. & Co. Kg Ring forging apparatus for forming and enlarging large rings
US4343236A (en) * 1980-03-01 1982-08-10 G. Siempelkamp Gmbh & Co. Prestressed press frame
US4922744A (en) * 1988-03-19 1990-05-08 Carl Ullrich Peddinghaus U-shaped punch or stamper with anti-bending member
US5493964A (en) * 1990-01-05 1996-02-27 Kabushiki Kaisha Komatsu Seisakusho Press machine having reinforced side frames
US5517909A (en) * 1990-06-20 1996-05-21 Kabushiki Kaisha Komatsu Seisakusho Press machine having reinforced side frames
US6547499B2 (en) * 2001-06-25 2003-04-15 Victor Taichung Machinery Works, Co., Ltd. Prestressing device for a mechanical finishing device
US20040065137A1 (en) * 2000-11-28 2004-04-08 Keijo Hellgren Hydraulic press with a pressure cell and a method and use for it, whose press body consists of prestressed lamellas
US6877199B2 (en) * 1999-12-30 2005-04-12 Societe Cassese S.A. Pneumatic crimper for fitting frame hanging attachments
US20060090529A1 (en) * 2002-07-04 2006-05-04 Klaus Katzfuss Locking device
US20120153244A1 (en) * 2010-12-21 2012-06-21 Sms Meer Gmbh Device for pre-tensioning a machine frame, machine frame, and pressing and drawing device
WO2013023888A1 (de) * 2011-08-16 2013-02-21 Langenstein & Schemann Gmbh Maschinenfundament, verfahren zum betrieb einer umformmaschine und umformanlage
CN102963780A (zh) * 2012-11-14 2013-03-13 中冶天工集团有限公司 预应力重型模锻压机单体机架牌坊缠绕方法
CN110435201A (zh) * 2019-07-24 2019-11-12 四川力能超高压设备有限公司 一种高压油压机
JP2021102230A (ja) * 2018-01-03 2021-07-15 寧波徳瑪智能機械有限公司Ningbo Dema Intelligent Machinery Co., Ltd. 油圧装置
USD1043771S1 (en) * 2021-05-12 2024-09-24 Innovative Automation Inc. Payout apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374077A1 (fr) * 1976-12-17 1978-07-13 Autoclave Eng Inc Procede de mise en place de bandes de retenue sur un harnais de contention
CN101982251B (zh) * 2010-09-09 2013-01-16 清华大学 一种承受多向载荷的预应力钢丝缠绕预紧机架

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210837A (en) * 1962-12-05 1965-10-12 Asea Ab Method of effecting pre-stress
US3800695A (en) * 1971-11-26 1974-04-02 Carbox Ab Side gap press and frame structure therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210837A (en) * 1962-12-05 1965-10-12 Asea Ab Method of effecting pre-stress
US3800695A (en) * 1971-11-26 1974-04-02 Carbox Ab Side gap press and frame structure therefor

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992837A (en) * 1974-07-29 1976-11-23 Allmanna Svenska Elektriska Aktiebolaget Press stand
US4073180A (en) * 1975-04-03 1978-02-14 Pahnke Engineering G.M.B.H. & Co. Kg Ring forging apparatus for forming and enlarging large rings
US4343236A (en) * 1980-03-01 1982-08-10 G. Siempelkamp Gmbh & Co. Prestressed press frame
US4922744A (en) * 1988-03-19 1990-05-08 Carl Ullrich Peddinghaus U-shaped punch or stamper with anti-bending member
US5493964A (en) * 1990-01-05 1996-02-27 Kabushiki Kaisha Komatsu Seisakusho Press machine having reinforced side frames
US5517909A (en) * 1990-06-20 1996-05-21 Kabushiki Kaisha Komatsu Seisakusho Press machine having reinforced side frames
US6877199B2 (en) * 1999-12-30 2005-04-12 Societe Cassese S.A. Pneumatic crimper for fitting frame hanging attachments
US20040065137A1 (en) * 2000-11-28 2004-04-08 Keijo Hellgren Hydraulic press with a pressure cell and a method and use for it, whose press body consists of prestressed lamellas
US7150177B2 (en) * 2000-11-28 2006-12-19 Avure Technologies Ab Hydraulic press with a pressure cell and a method and use for it, whose press body consists of prestressed lamellas
US6547499B2 (en) * 2001-06-25 2003-04-15 Victor Taichung Machinery Works, Co., Ltd. Prestressing device for a mechanical finishing device
US20060090529A1 (en) * 2002-07-04 2006-05-04 Klaus Katzfuss Locking device
US7415863B2 (en) * 2002-07-04 2008-08-26 Klaus Katzfuss Clamping device
US20120153244A1 (en) * 2010-12-21 2012-06-21 Sms Meer Gmbh Device for pre-tensioning a machine frame, machine frame, and pressing and drawing device
EP2468492A3 (de) * 2010-12-21 2014-10-22 SMS Meer GmbH Vorrichtung zum Vorspannen eines Maschinengestells, Maschinengestell sowie Press- und Ziehvorrichtung
WO2013023888A1 (de) * 2011-08-16 2013-02-21 Langenstein & Schemann Gmbh Maschinenfundament, verfahren zum betrieb einer umformmaschine und umformanlage
CN103732387A (zh) * 2011-08-16 2014-04-16 朗根施泰因及舍曼有限公司 机器底座、用于操作成型机器的方法和成型系统
CN103732387B (zh) * 2011-08-16 2015-10-21 朗根施泰因及舍曼有限公司 机器底座、用于操作成型机器的方法和成型系统
US9180642B2 (en) 2011-08-16 2015-11-10 Langenstein & Schemann Gmbh Machine bed, method for the operation of a forming machine and forming installation
RU2628884C2 (ru) * 2011-08-16 2017-08-22 Лангенштайн И Шеманн Гмбх Фундамент машины, способ эксплуатации формовочной машины и формовочная установка
DE102011052733B4 (de) 2011-08-16 2023-09-28 Langenstein & Schemann Gmbh Maschinenfundament, Verfahren zum Betrieb einer Umformmaschine und Umformanlage
CN102963780A (zh) * 2012-11-14 2013-03-13 中冶天工集团有限公司 预应力重型模锻压机单体机架牌坊缠绕方法
CN102963780B (zh) * 2012-11-14 2016-01-20 中冶天工集团有限公司 预应力重型模锻压机单体机架牌坊缠绕方法
JP2021102230A (ja) * 2018-01-03 2021-07-15 寧波徳瑪智能機械有限公司Ningbo Dema Intelligent Machinery Co., Ltd. 油圧装置
CN110435201A (zh) * 2019-07-24 2019-11-12 四川力能超高压设备有限公司 一种高压油压机
USD1043771S1 (en) * 2021-05-12 2024-09-24 Innovative Automation Inc. Payout apparatus

Also Published As

Publication number Publication date
FR2214584B1 (enrdf_load_stackoverflow) 1977-08-19
JPS5019066A (enrdf_load_stackoverflow) 1975-02-28
DE2401856A1 (de) 1974-07-25
SE364469B (enrdf_load_stackoverflow) 1974-02-25
FR2214584A1 (enrdf_load_stackoverflow) 1974-08-19

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