GB1248917A - Cold tube bending with outer bend wall thickness control - Google Patents

Cold tube bending with outer bend wall thickness control

Info

Publication number
GB1248917A
GB1248917A GB47051/68A GB4705168A GB1248917A GB 1248917 A GB1248917 A GB 1248917A GB 47051/68 A GB47051/68 A GB 47051/68A GB 4705168 A GB4705168 A GB 4705168A GB 1248917 A GB1248917 A GB 1248917A
Authority
GB
United Kingdom
Prior art keywords
roller
pipe
grooved
clamp
clamps
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
GB47051/68A
Inventor
Homer James Steel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1248917A publication Critical patent/GB1248917A/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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • B21D7/025—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends of the work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

1,248,917. Angular bending. H. J. STEEL. 3 Oct., 1968 [12 Oct., 1967], No. 47051/68. Heading B3E. An apparatus for cold bending tubes com prises a grooved forming roller, drive means for rotating said roller, a leading clamp connected to said roller for securing the leading pipe portion said clamp rotating with said roller, a linearly movable trailing clamp for securing the trailing pipe portion and a mechanical linkage other than said drive means connecting said clamps and disposed to maintain the distance between said clamps along the bending path constant to thereby maintain a constant length of the outer bend surface of said tube. The base 1 supports guides 2 for a slidable carriage 3 carrying the trailing clamp 4. The grooved roller 6 provided with a leading clamp 10 is rotated by rack and pinion gearing 13, 14, Fig. 3, driven by hydraulic cylinders 16. A grooved supporting shoe 18 and a grooved pressure die 19 support the pipe walls at the entrance to the roller 6. As the pipe is bent around the roller the distance be- tween the clamps 4 and 10 is kept constant by means of a pair of chains 22 attached to the clamps. If desired the load on the chains may be eased by a compressed air cylinder 25 attached to the carriage 3 and after forming this cylinder is used to retract the carriage. To prevent scoring of the pipe the grooved pressure die is attached to the carriage directly or through toggle mechanism so as to move with the pipe.
GB47051/68A 1967-10-12 1968-10-03 Cold tube bending with outer bend wall thickness control Expired GB1248917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67481967A 1967-10-12 1967-10-12

Publications (1)

Publication Number Publication Date
GB1248917A true GB1248917A (en) 1971-10-06

Family

ID=24708005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47051/68A Expired GB1248917A (en) 1967-10-12 1968-10-03 Cold tube bending with outer bend wall thickness control

Country Status (2)

Country Link
US (1) US3452570A (en)
GB (1) GB1248917A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113617900A (en) * 2021-08-02 2021-11-09 浙江金马逊机械有限公司 Numerical control elbow device and briquetting device for inhibiting elbow from changing into elliptical movable joint
CN113617899A (en) * 2021-08-02 2021-11-09 浙江金马逊机械有限公司 Pipe bending equipment and pipe bending method for inhibiting deformation of bent pipe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313147A1 (en) * 1975-06-06 1976-12-31 Tsi T Large dia pipe bending machine - has eccentric clamping jaws and discs connected to traction mechanism
US4959984A (en) * 1989-08-17 1990-10-02 Ap Parts Manufacturing Company Precision bending apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357006A (en) * 1942-10-27 1944-08-29 Cleveland Pneumatic Tool Co Tube bending machine
US3205690A (en) * 1961-12-18 1965-09-14 Fmc Corp Tube bending machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113617900A (en) * 2021-08-02 2021-11-09 浙江金马逊机械有限公司 Numerical control elbow device and briquetting device for inhibiting elbow from changing into elliptical movable joint
CN113617899A (en) * 2021-08-02 2021-11-09 浙江金马逊机械有限公司 Pipe bending equipment and pipe bending method for inhibiting deformation of bent pipe
CN113617900B (en) * 2021-08-02 2023-03-07 浙江金马逊智能制造股份有限公司 Numerical control elbow device and briquetting device for inhibiting elbow from changing into elliptical movable joint
CN113617899B (en) * 2021-08-02 2023-03-10 浙江金马逊智能制造股份有限公司 Pipe bending equipment and pipe bending method for inhibiting deformation of bent pipe

Also Published As

Publication number Publication date
US3452570A (en) 1969-07-01

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