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US3785030A - Hydraulic jig for correction of mis-alignment between joints of plates - Google Patents

Hydraulic jig for correction of mis-alignment between joints of plates Download PDF

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Publication number
US3785030A
US3785030A US00227917A US22791772A US3785030A US 3785030 A US3785030 A US 3785030A US 00227917 A US00227917 A US 00227917A US 22791772 A US22791772 A US 22791772A US 3785030 A US3785030 A US 3785030A
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US
United States
Prior art keywords
plate
jig
width
hydraulic
alignment
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
US00227917A
Inventor
T Une
A Kamata
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.)
IHI Corp
Osaka Jack Manufacturiung Co Ktd
Original Assignee
Ishikawajima Harima Heavy Industries Co Ltd
Osaka Jack Manufacturiung Co Ktd
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 Ishikawajima Harima Heavy Industries Co Ltd, Osaka Jack Manufacturiung Co Ktd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Application granted granted Critical
Publication of US3785030A publication Critical patent/US3785030A/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
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
    • B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
    • B23K37/0408—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work for planar 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y10T29/53913—Aligner or center
    • 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
    • Y10T29/53961—Means to assemble or disassemble with work-holder for assembly
    • 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
    • Y10T29/53978—Means to assemble or disassemble including means to relatively position plural work parts

Definitions

  • ABSTRACT A hydraulic jig for aligning plates edge-to-edge prior to welding provided with a first hydraulic jack for clamping a first plate having a width within a predetermined range in the direction of its width and thickness and also provided with hydraulic jacks for exerting pressure to a second plate in the direction of its width and thickness.
  • the defects of the prior art method are that a large quantity of materials and much cost are required; a long time is required for attaching the pieces; the consumption of welding rods and electric power is increased; and the spots at which the pieces are attached must be finished after welding.
  • a jig proper of said jig has a hydraulic jack for clamping the first plate having a width within a predetermined range in the direction of its width and thickness, a hydraulic jack for clamping the first plate only in the direction of its width, a pair of hydraulic jacks for exerting the pressures to the second plate in the direction of its width, and a pair of hydraulic jacks for exerting the pressures to the second plate in the direction of its thickness.
  • FIG. I is a top view of a jig in accordance with th the direction of their thickness for alignment therebetween in the longitudinal direction thereof.
  • FIG. 2 is a side view thereof looking in the direction indicated by the arrows A of FIG. I;
  • FIG. 3 is a side view thereof looking in the direction indicated by the arrows B of FIG. 1;
  • FIG. 4 is a front view looking in the direction of the arrows C of FIG. 1;
  • FIG. 5 is a sectional view thereof taken along the line DD of FIG. 1;
  • FIG. 6 is a fragmentary trasverse sectional view of a transverse frame of a vessel.
  • FIG. 7 is a sectional view taken along the line EE of FIG. 6.
  • a l5-ton hydraulic jack for clamping and a S-ton hydraulic jack also for clamping are mounted in parallel with each other on a jig proper l in the axial direction thereof.
  • Clamp memers 4 whose ends are so formed as to clamp plates in the directions of their width and thickness as shown in FIG. 2 are symmetrically and rotatably fixed to the jig proper 1.
  • similar clamp members 5 whose leading ends are so formed as to clamp the plates in the direction of their width are pivoted to the jig proper l.
  • the other ends of the clamp members 4 are pivoted to the hydraulic jack 2, and the other ends of the clamp members 5 are pivoted to the hydraulic jack 3 so that the clamp members 4 and 5 are opened or closed as the hydraulic jacks 2 and 3 are actuated.
  • a pair of IO-ton hydraulic jacks 6 for alignment between the lateral surfaces of the plates are symmetrically fixed to the jig proper l and are provided with rollers 8 so that the plates may be exerted with the pressures in the direction of their width.
  • a pair of vertically-spaced-apart IO-ton hydraulic jacks 7 having rollers 8 at their lower ends are also disposed to the jig proper I for exerting the pressures to the plates in and 9' can be corrected.
  • Reference numeral 10 designates the joint (to be welded) of the face plate.
  • the jig of the present invention is set to the joints 10.
  • the hydraulic jack 2 is extended to clamp the face plate 9 in the directions of its width and thickness with the clamp members 4 as shown in FIG. 2.
  • the hydraulic jack 3 is actuated to clamp the face plate 9 in the direction of its width with the clamp members 5 as shown in FIG. 3.
  • the hydraulic jacks 6 and 7 are actuated to correct the mis-alignment in the lateral and longitudinal directions of the face plate 9 respectively.
  • the tack welding is made, and the two face plates 9 and 9 are welded together. Since the rollers 8 are attached to the ends of the hydraulic jacks 6 and 7, no lateral and eccentric loads are exerted to the hydraulic jacks 6 and 7. Either of the hydraulic jacks 6 or 7 may be actuated first.
  • the jig of the present invention has been described as being applied to the joints of the face plates of the transverse frame in the vessel under construction, but it should be understood that the present invention is not limited only to the ship-building in application.
  • the present invention may be also used for correction of mis-alignments be- 5 tween the joints of face plates to be tack-and-jointwelded in any other structure.
  • the present invention is not limited to that illustrated in the accompanying drawing.
  • the jig of the present invention has the hydraulic jack for clamping a plate having a width less than a predetermined width in the directions of its width and thickness, the hydraulic jack for clamping the plate only in the direction of its width, the hydraulic jacks for exerting the pressures to the plate in the direction of its width; and the hydraulic jacks for exerting the pressures to the plate in the direction of its thickness. Therefore, correction of mis-alignment between the joints of face plates can be accomplished in a simple manner without the use of mis-alignment correction pieces. Thus the defects encountered in the prior art method can be overcomed, and the operation can be accomplished in a short time in a simple, efficient and safeguarded manner.
  • a jig for aligning plates edge-to-edge prior to welding having attached thereto: a first hydraulic jack equipped with means for securing a first plate in relation to the jig by gripping it across its width and across its thickness; a second hydraulic jack spaced from the first and equipped with means for securing said first plate in relation to the jig by gripping it across its width only; a first pair of hydraulic jacks for exerting pressure upon a second plate across its width and hence being about its movement in relation to the jig into a desired alignment with said first plate; and a second pair of hydraulic jacks for exerting pressure upon said second plate in the direction of its thickness and hence bring for exerting the pressure to the second plate in the direction of its width and the ends of the hydraulic jacks for exerting the pressure to the second plate in the direction of its thickness.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

A hydraulic jig for aligning plates edge-to-edge prior to welding provided with a first hydraulic jack for clamping a first plate having a width within a predetermined range in the direction of its width and thickness and also provided with hydraulic jacks for exerting pressure to a second plate in the direction of its width and thickness.

Description

Waited States Patent lUne et al.
[ Jan. 15, 1974 HYDRAULIC JIG FOR CORRECTION OF MlS-ALIGNMENT BETWEEN JOINTS OF PLATES inventors: Tatuyuki Une, Hiroshima-ken;
Akira Kamata, Tokyo, both of Japan Assignees: lshikawajima-Harima Jokogyo Kabushiki Kaisha, Tokyo; Kabushiki Kaisha Osaka Jack Seisakusho, Osaka-shi, Osaka-fu, Japan Filed: Feb. 22, 1972' Appl. No.: 227,917
Foreign. Application Priority Data Feb. 23, 1971 Japan .....46/ os04 u U.S. Cl. 29/200 P lint. Cl. B23p 19/00 [58] Field of Search 29/200 P, 200 J, 29/200 R, 200 A, 203 P, 203 R [56] References Cited UNITED STATES PATENTS 3,259,964 7/1966 Engel 29/200 P Primary Examiner-Thomas H. Eager Att0rneyScrivener Parker Scrivener & Clarke [57] ABSTRACT A hydraulic jig for aligning plates edge-to-edge prior to welding provided with a first hydraulic jack for clamping a first plate having a width within a predetermined range in the direction of its width and thickness and also provided with hydraulic jacks for exerting pressure to a second plate in the direction of its width and thickness.
2 Claims, 7 Drawing Figures Recently larger and larger vessels are constructed so that the prior art manual operation for welding the shell blocks or subassemblies becomes extremely difficult.
In the prior art method, a large quantity of misalignment correction pieces are used, and erection is made by use of hammers and wedges.
The defects of the prior art method are that a large quantity of materials and much cost are required; a long time is required for attaching the pieces; the consumption of welding rods and electric power is increased; and the spots at which the pieces are attached must be finished after welding.
The present invention was made to overcome these defects of the prior art method, and provides a hydraulic jig for correction of mis-alignment between joints of plates characterized in that a jig proper of said jig has a hydraulic jack for clamping the first plate having a width within a predetermined range in the direction of its width and thickness, a hydraulic jack for clamping the first plate only in the direction of its width, a pair of hydraulic jacks for exerting the pressures to the second plate in the direction of its width, and a pair of hydraulic jacks for exerting the pressures to the second plate in the direction of its thickness.
The present invention will become more apparent from the following description of the preferred embodiment thereof taken in conjunction with the accompanying drawing.
FIG. I is a top view of a jig in accordance with th the direction of their thickness for alignment therebetween in the longitudinal direction thereof. By these hydraulic jacks 6, 7, 2 and 3, the mis-alignment in the longitudinal and lateral directions of the face plates 9 present invention;
FIG. 2 is a side view thereof looking in the direction indicated by the arrows A of FIG. I; I
FIG. 3 is a side view thereof looking in the direction indicated by the arrows B of FIG. 1;
FIG. 4 is a front view looking in the direction of the arrows C of FIG. 1;
FIG. 5 is a sectional view thereof taken along the line DD of FIG. 1;
FIG. 6 is a fragmentary trasverse sectional view of a transverse frame of a vessel; and
FIG. 7 is a sectional view taken along the line EE of FIG. 6.
A l5-ton hydraulic jack for clamping and a S-ton hydraulic jack also for clamping are mounted in parallel with each other on a jig proper l in the axial direction thereof. Clamp memers 4 whose ends are so formed as to clamp plates in the directions of their width and thickness as shown in FIG. 2 are symmetrically and rotatably fixed to the jig proper 1. As shown in FIG. 3, similar clamp members 5 whose leading ends are so formed as to clamp the plates in the direction of their width are pivoted to the jig proper l. The other ends of the clamp members 4 are pivoted to the hydraulic jack 2, and the other ends of the clamp members 5 are pivoted to the hydraulic jack 3 so that the clamp members 4 and 5 are opened or closed as the hydraulic jacks 2 and 3 are actuated. A pair of IO-ton hydraulic jacks 6 for alignment between the lateral surfaces of the plates are symmetrically fixed to the jig proper l and are provided with rollers 8 so that the plates may be exerted with the pressures in the direction of their width. A pair of vertically-spaced-apart IO-ton hydraulic jacks 7 having rollers 8 at their lower ends are also disposed to the jig proper I for exerting the pressures to the plates in and 9' can be corrected. Reference numeral 10 designates the joint (to be welded) of the face plate.
Next the mode of operation will be described when the jig of the present invention is used to align the face plates 9 and 9' of the transverse frames in a vessel under construction as shown in FIGS. 6 and 7.
To correct mis-alignment between the joints of the face plates 9 and 9' as shown in FIG. I, the jig of the present invention is set to the joints 10. Next the hydraulic jack 2 is extended to clamp the face plate 9 in the directions of its width and thickness with the clamp members 4 as shown in FIG. 2. The hydraulic jack 3 is actuated to clamp the face plate 9 in the direction of its width with the clamp members 5 as shown in FIG. 3. Next the hydraulic jacks 6 and 7 are actuated to correct the mis-alignment in the lateral and longitudinal directions of the face plate 9 respectively. Thereafter, the tack welding is made, and the two face plates 9 and 9 are welded together. Since the rollers 8 are attached to the ends of the hydraulic jacks 6 and 7, no lateral and eccentric loads are exerted to the hydraulic jacks 6 and 7. Either of the hydraulic jacks 6 or 7 may be actuated first.
In the embodiment described above, the jig of the present invention has been described as being applied to the joints of the face plates of the transverse frame in the vessel under construction, but it should be understood that the present invention is not limited only to the ship-building in application. The present invention may be also used for correction of mis-alignments be- 5 tween the joints of face plates to be tack-and-jointwelded in any other structure. Furthermore the present invention is not limited to that illustrated in the accompanying drawing.
As described above, the jig of the present invention has the hydraulic jack for clamping a plate having a width less than a predetermined width in the directions of its width and thickness, the hydraulic jack for clamping the plate only in the direction of its width, the hydraulic jacks for exerting the pressures to the plate in the direction of its width; and the hydraulic jacks for exerting the pressures to the plate in the direction of its thickness. Therefore, correction of mis-alignment between the joints of face plates can be accomplished in a simple manner without the use of mis-alignment correction pieces. Thus the defects encountered in the prior art method can be overcomed, and the operation can be accomplished in a short time in a simple, efficient and safeguarded manner.
We claim:
1. A jig for aligning plates edge-to-edge prior to welding, having attached thereto: a first hydraulic jack equipped with means for securing a first plate in relation to the jig by gripping it across its width and across its thickness; a second hydraulic jack spaced from the first and equipped with means for securing said first plate in relation to the jig by gripping it across its width only; a first pair of hydraulic jacks for exerting pressure upon a second plate across its width and hence being about its movement in relation to the jig into a desired alignment with said first plate; and a second pair of hydraulic jacks for exerting pressure upon said second plate in the direction of its thickness and hence bring for exerting the pressure to the second plate in the direction of its width and the ends of the hydraulic jacks for exerting the pressure to the second plate in the direction of its thickness.

Claims (2)

1. A jig for aligning plates edge-to-edge prior to welding, having attached thereto: a first hydraulic jack equipped with means for securing a first plate in relation to the jig by gripping it across its width and across its thickness; a second hydraulic jack spaced from the first and equipped with means for securing said first plate in relation to the jig by gripping it across its width only; a first pair of hydraulic jacks for exerting pressure upon a second plate across its width and hence bring about its movement in relation to the jig into a desired alignment with said first plate; and a second pair of hydraulic jacks for exerting pressure upon said second plate in the direction of its thickness and hence bring about its movement in relation to the jig and hence into a desired alignment with said first plate.
2. A hydraulic jig for correction and mis-alignment between joints of plates according to claim 1 wherein rollErs for exerting the pressure to the second plate are respectively attached to the ends of the hydraulic jacks for exerting the pressure to the second plate in the direction of its width and the ends of the hydraulic jacks for exerting the pressure to the second plate in the direction of its thickness.
US00227917A 1971-02-23 1972-02-22 Hydraulic jig for correction of mis-alignment between joints of plates Expired - Lifetime US3785030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971010804U JPS517304Y2 (en) 1971-02-23 1971-02-23

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US3785030A true US3785030A (en) 1974-01-15

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US (1) US3785030A (en)
JP (1) JPS517304Y2 (en)
AU (1) AU444090B2 (en)
BR (1) BR7200999D0 (en)
DE (1) DE2208221C3 (en)
ES (1) ES400016A1 (en)
FR (1) FR2126364B1 (en)
GB (1) GB1388414A (en)
IT (1) IT947797B (en)
NL (1) NL146077B (en)
SE (1) SE378542B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4580717A (en) * 1984-02-21 1986-04-08 American Induction Heating Method and apparatus for attaching forging handles on billets
US5630269A (en) * 1995-06-19 1997-05-20 General Motors Corporation Method for fixturing abutted sheet metal parts for welding
US5933975A (en) * 1997-07-09 1999-08-10 Pate; Ray H. Alignment tool and clamping mechanism for collecting plates

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6292997B1 (en) * 1999-05-28 2001-09-25 Robert Ollendick Pre-plating of wooden railroad ties

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259964A (en) * 1963-06-28 1966-07-12 Kahle Eng Co Pipe clamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259964A (en) * 1963-06-28 1966-07-12 Kahle Eng Co Pipe clamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4580717A (en) * 1984-02-21 1986-04-08 American Induction Heating Method and apparatus for attaching forging handles on billets
US5630269A (en) * 1995-06-19 1997-05-20 General Motors Corporation Method for fixturing abutted sheet metal parts for welding
US5933975A (en) * 1997-07-09 1999-08-10 Pate; Ray H. Alignment tool and clamping mechanism for collecting plates

Also Published As

Publication number Publication date
FR2126364B1 (en) 1977-04-01
DE2208221C3 (en) 1975-06-19
AU444090B2 (en) 1974-01-17
JPS477416U (en) 1972-09-27
NL146077B (en) 1975-06-16
DE2208221B2 (en) 1974-11-21
BR7200999D0 (en) 1973-05-31
NL7202302A (en) 1972-08-25
DE2208221A1 (en) 1972-09-07
FR2126364A1 (en) 1972-10-06
SE378542B (en) 1975-09-08
AU3915172A (en) 1973-08-23
GB1388414A (en) 1975-03-26
ES400016A1 (en) 1975-09-16
IT947797B (en) 1973-05-30
JPS517304Y2 (en) 1976-02-27

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