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GB1426870A - Appatus and method for straightening tubes - Google Patents

Appatus and method for straightening tubes

Info

Publication number
GB1426870A
GB1426870A GB2337272A GB2337272A GB1426870A GB 1426870 A GB1426870 A GB 1426870A GB 2337272 A GB2337272 A GB 2337272A GB 2337272 A GB2337272 A GB 2337272A GB 1426870 A GB1426870 A GB 1426870A
Authority
GB
United Kingdom
Prior art keywords
tube
head
correction
straightness
measure
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
Application number
GB2337272A
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Priority to GB2337272A priority Critical patent/GB1426870A/en
Priority to AU55540/73A priority patent/AU5554073A/en
Priority to US359897A priority patent/US3866447A/en
Priority to CA171,396A priority patent/CA989285A/en
Priority to JP5483973A priority patent/JPS532146B2/ja
Publication of GB1426870A publication Critical patent/GB1426870A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

1426870 Bending tubes POST OFFICE 9 May 1973 [18 May 1972] 23372/72 Heading B3E [Also in Divisions G1 and G3] A portion of a tube is straightened by a force dependent upon the measured deviation from straightness of that portion. As shown, a waveguide tube 1 is moved past fixed heads 3, 5, 7 that measure the deviation from straightness of the tube bore before, at and after correction. The tube is straightened by movable rollers or, as shown, an hydraulic die 15 according to the difference between the actual correction applied to a tube portion measured at die 15 by head 5 and a time lagged required correction of the same tube portion as measured by head 3. The gain for the signal from head 3 may be variable and the time delay, which is equal to the time taken for the tube to pass from head 3 to head 5, comprise a magnetic drum with spaced "read on" and "read off" heads and whose speed is proportional to the tube speed. Each head 3, 5, 7 may comprise fixed legs 21, 23 with a movable leg 22 therebetween, the output of each head, which is recorded by pen recorder 33, being electrical or hydraulic and proportional to the displacement of leg 22 i.e. the tube curvature. In alternatives, head 7 may be omitted and the straightness checked by running the tube through the apparatus a second time in either direction, which run may be made with the tube rotated through 90 degrees about its axis relative to the first run. Only one head may be used with feed forward control of correction, or by making three passes to measure and record the required correction, measure the actual correction and to check the straightness. The measurement and correction of the tube may be applied only at spaced intervals with discontinuous tube movement through the apparatus.
GB2337272A 1972-05-18 1972-05-18 Appatus and method for straightening tubes Expired GB1426870A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB2337272A GB1426870A (en) 1972-05-18 1972-05-18 Appatus and method for straightening tubes
AU55540/73A AU5554073A (en) 1972-05-18 1973-05-10 Straightening tubes straightening tubes
US359897A US3866447A (en) 1972-05-18 1973-05-14 Apparatus and method for straightening tubes
CA171,396A CA989285A (en) 1972-05-18 1973-05-15 Apparatus and method for straightening tubes
JP5483973A JPS532146B2 (en) 1972-05-18 1973-05-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2337272A GB1426870A (en) 1972-05-18 1972-05-18 Appatus and method for straightening tubes

Publications (1)

Publication Number Publication Date
GB1426870A true GB1426870A (en) 1976-03-03

Family

ID=10194566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2337272A Expired GB1426870A (en) 1972-05-18 1972-05-18 Appatus and method for straightening tubes

Country Status (5)

Country Link
US (1) US3866447A (en)
JP (1) JPS532146B2 (en)
AU (1) AU5554073A (en)
CA (1) CA989285A (en)
GB (1) GB1426870A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112338002A (en) * 2020-10-16 2021-02-09 中国航发北京航空材料研究院 A local shape correction method for titanium alloy components

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU186501B (en) * 1982-04-29 1985-08-28 Magyar Aluminium Method and apparatus for originating given permanent set on stretching-straightening machines
US4715204A (en) * 1985-02-23 1987-12-29 M.A.N. Roland Druckmaschinen Aktiengesellschaft Method and apparatus for accurately centered alignment of a hollow rotation symmetrical workpiece
EP0235323B1 (en) * 1986-03-01 1989-01-11 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Apparatus and method for straightening a hollow cylindrical work piece
DE3927465A1 (en) * 1989-08-19 1991-02-21 Mae Maschinen U Apparatebau Go BREADING MACHINE FOR LONG-EXTENDED ALIGNMENT
US5737957A (en) * 1995-06-26 1998-04-14 Baker Hughes Incorporated Apparatus for straightening a cylindrical member
CN1065715C (en) * 1996-07-26 2001-05-16 李玮 Scented aluminium phosphide containing 4-hydroxy-3-methoxy(ethoxy) benzaldehide and mould resistant agent
CN104015058B (en) * 2014-06-15 2017-02-15 太仓东青金属制品有限公司 Metal capillary tube straightening device
GB2552815B (en) * 2016-08-10 2018-12-26 Impcross Ltd Method of manufacturing a tubular member

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1783797A (en) * 1929-10-24 1930-12-02 United Enginnering & Foundry C Material-handling device
US3030901A (en) * 1955-08-30 1962-04-24 Taylor Wilson Mfg Company Means and method for expanding and testing pipe
US3316743A (en) * 1963-07-26 1967-05-02 Herbert C Ovshinsky Straightening machine
US3335587A (en) * 1965-04-01 1967-08-15 Pioneer Engineering & Mfg Comp Automatic straightening machine
US3496644A (en) * 1967-10-05 1970-02-24 Don L Short Internal measuring device to determine pipe curvature
US3460028A (en) * 1967-11-03 1969-08-05 American Mach & Foundry Pipeline inspection apparatus with means for correlating the recorded defect signals with the angular position within the pipeline at which they were generated
US3566640A (en) * 1968-08-26 1971-03-02 Chrysler Corp Inspection and correction apparatus
US3602031A (en) * 1969-09-19 1971-08-31 Dan H Graff Internal pipe radius control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112338002A (en) * 2020-10-16 2021-02-09 中国航发北京航空材料研究院 A local shape correction method for titanium alloy components
CN112338002B (en) * 2020-10-16 2022-05-17 中国航发北京航空材料研究院 A local shape correction method for titanium alloy components

Also Published As

Publication number Publication date
JPS532146B2 (en) 1978-01-25
US3866447A (en) 1975-02-18
JPS4967185A (en) 1974-06-28
AU5554073A (en) 1974-11-14
CA989285A (en) 1976-05-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee