GB1435004A - Pipe clamp means - Google Patents
Pipe clamp meansInfo
- Publication number
- GB1435004A GB1435004A GB2502673A GB2502673A GB1435004A GB 1435004 A GB1435004 A GB 1435004A GB 2502673 A GB2502673 A GB 2502673A GB 2502673 A GB2502673 A GB 2502673A GB 1435004 A GB1435004 A GB 1435004A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sections
- housing
- pipe
- actuated
- rams
- 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
Links
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 to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
1435004 Welding by fusion; tube expanding COLUMBIA GAS SYSTEM SERVICE CORP 24 May 1973 25026/73 Headings B3R and B3J Apparatus for axially aligning, trueing and clamping together end-to-end "in place" and "set in" pipe sections 12, 14 and for backing the weld groove between said sections comprises radially movable clamping and trueing means 20, 21 respectively supported by relatively axially movable housing sections 26, 28, means for axially separating the housing sections when the clamping means 20, 21 are respectively engaged with abutting pipe sections 12, 14 so as to space the ends of the latter by a predetermined distance, a backing ring assembly 24 supported by the housing section 26 and radially movable to bridge the welding groove, and pipe engaging drive means to propel the apparatus through the pipe sections. The clamping means 20, 21 comprises sets of spring-returned heads (166, 166<SP>1</SP>) radially slidable in the housing sections and acted on by radially acting cams (160, 160<SP>1</SP>) which are rotated, via torque tubes (152, 154) by sets of rams 188, 210 to expand the heads into engagement with the pipe sections and by rams 200, 211 enabling return of the heads. The housing section separating means comprises rams (222) acting between the housing section 28 and, via a tie tube (34), the housing section 26, the housing section separation being limited by a stop (232, Fig. 2b, not shown) which is screw adjusted to determine weld groove width. The backing ring assembly 24 comprises two, three, or four arcuate shoes 246 (Fig. 6) interconnected by yokes 252 which are radially outwardly and inwardly moved by a radially acting cam 240 rotated via a torque tube (150) by rams 268 for shoe expansion and a ram 269 for shoe retraction. Inter-shoe wedges 288 (Fig. 8) carried by the yokes 252 are moved axially of the housing sections by rams 286. The shoes and wedges are of steel with copper cooling inserts. The apparatus propulsion is by fluid actuated motors (66) acting through gear and chain transmissions on bottom wheels 90, carried rigidly or on rocking frames 88, and an upper, outwardly spring-urged, wheel 117. The rams and fluid actuated motors may be hydraulic or, as shown, pneumatic. Actuating fluid is supplied through a reach rod 52 or from a housing mounted reservoir used when fluid is disconnected from the rod. Control is by valves actuated by rotation of a spring-detented manually-actuated reach rod handle 301, indirectly-actuated sequence controlling valves, a valve preventing driving motor actuation when the clamping means 20, 21 are expanded, manual valves mounted on the housing section 28 for fine alignment forward and reverse apparatus propulsion and for clamp means 20 actuation, a valve actuated by spring-actuated outward movement of a wheel 130 to stop apparatus propulsion following its sensing absence of a surrounding pipe, and a valve actuated by axial movement of the reach rod handle to stop apparatus propulsion should said sensing valve fail. In operation, (i) the apparatus is forwardly propelled until the wheel 130 passes the free end of the "in place" pipe section 12 and shuts off the propulsion motors whereupon the apparatus coasts to a stop with the backing ring assembly substantially in alignment with the weld preparation, (ii) the backing ring is fully aligned by forward/reverse actuation of the propulsion motors, (iii) the clamp means 20 is expanded, (iv) the "set in" pipe section 14 is placed in substantial abutment with the "in place" pipe section 12, (v) the clamp means 21 is expanded at low pressure to lightly engage the pipe section 14 to allow accurate final pipe section abutment, (vi) the clamp means 21 is expanded at high pressure, (vii) the housing sections 26, 28 are separated to space apart the pipe sections said predetermined distance, (viii) the backing ring shoes and, then, wedges are moved into place; and on completion of welding (ix) the backing ring wedges and their shoes are retracted, (x) the clamp means 21 is retracted, (xi) the housing sections 26, 28 are drawn together again, and (xii) the clamp means 20 is retracted. In the event of the welding being found unsatisfactory after stage (xi) the clamping means 21 and backing ring assembly may be placed in working position again for weld repetition or repair before stage (xii) is proceeded with. After retraction of the clamp means 20, the apparatus is moved to the next joint position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2502673A GB1435004A (en) | 1973-05-24 | 1973-05-24 | Pipe clamp means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2502673A GB1435004A (en) | 1973-05-24 | 1973-05-24 | Pipe clamp means |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1435004A true GB1435004A (en) | 1976-05-12 |
Family
ID=10221024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2502673A Expired GB1435004A (en) | 1973-05-24 | 1973-05-24 | Pipe clamp means |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1435004A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2156468A (en) * | 1984-03-31 | 1985-10-09 | Okamoto Kogyo Kk | Internally clamping pipes |
US4581816A (en) * | 1984-04-27 | 1986-04-15 | General Electric Company | Method and apparatus for welding turbine rotor shafts |
GB2214263A (en) * | 1988-01-26 | 1989-08-31 | Kubota Ltd | Pipe pig |
CN109623245A (en) * | 2019-01-14 | 2019-04-16 | 安徽明天氢能科技股份有限公司 | A kind of hydrogen fuel cell bipolar plates full automatic welding welding fixture |
CN111812128A (en) * | 2020-07-18 | 2020-10-23 | 王震 | Pipeline radiation-proof flaw detection device with adaptive pipe diameter adjustment function |
CN112092042A (en) * | 2020-09-14 | 2020-12-18 | 天长市永南橡塑制品有限公司 | Tire cutting device |
CN112475558A (en) * | 2020-10-26 | 2021-03-12 | 合肥紫金钢管股份有限公司 | Technology for processing and manufacturing steel pipe of suction tube for suction type jacket |
CN112894660A (en) * | 2021-01-27 | 2021-06-04 | 冯涛涛 | High-stability clamping mechanism for annular workpiece |
CN112959704A (en) * | 2021-02-04 | 2021-06-15 | 爱索尔(广州)包装有限公司 | Pipe body positioning device of pipe making machine, pipe making machine and pipe body positioning method |
CN114131175A (en) * | 2021-12-15 | 2022-03-04 | 天津大学 | Internal support device and method for double-machine girth welding of storage tank barrel section |
CN115121435A (en) * | 2022-08-01 | 2022-09-30 | 重庆工商大学 | Rust-proof treatment device for motor stator and rotor and use method |
-
1973
- 1973-05-24 GB GB2502673A patent/GB1435004A/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2156468A (en) * | 1984-03-31 | 1985-10-09 | Okamoto Kogyo Kk | Internally clamping pipes |
US4581816A (en) * | 1984-04-27 | 1986-04-15 | General Electric Company | Method and apparatus for welding turbine rotor shafts |
GB2214263A (en) * | 1988-01-26 | 1989-08-31 | Kubota Ltd | Pipe pig |
US4938167A (en) * | 1988-01-26 | 1990-07-03 | Kubota Ltd. | Self-propelled vehicle for use in pipes |
GB2214263B (en) * | 1988-01-26 | 1992-03-11 | Kubota Ltd | Self-propelled vehicle for use in pipes |
CN109623245B (en) * | 2019-01-14 | 2024-02-09 | 安徽明天氢能科技股份有限公司 | Full-automatic welding fixture for bipolar plate of hydrogen fuel cell |
CN109623245A (en) * | 2019-01-14 | 2019-04-16 | 安徽明天氢能科技股份有限公司 | A kind of hydrogen fuel cell bipolar plates full automatic welding welding fixture |
CN111812128A (en) * | 2020-07-18 | 2020-10-23 | 王震 | Pipeline radiation-proof flaw detection device with adaptive pipe diameter adjustment function |
CN112092042A (en) * | 2020-09-14 | 2020-12-18 | 天长市永南橡塑制品有限公司 | Tire cutting device |
CN112475558A (en) * | 2020-10-26 | 2021-03-12 | 合肥紫金钢管股份有限公司 | Technology for processing and manufacturing steel pipe of suction tube for suction type jacket |
CN112894660B (en) * | 2021-01-27 | 2022-11-08 | 重庆太仓科技有限公司 | High-stability clamping mechanism for annular workpiece |
CN112894660A (en) * | 2021-01-27 | 2021-06-04 | 冯涛涛 | High-stability clamping mechanism for annular workpiece |
CN112959704A (en) * | 2021-02-04 | 2021-06-15 | 爱索尔(广州)包装有限公司 | Pipe body positioning device of pipe making machine, pipe making machine and pipe body positioning method |
CN114131175A (en) * | 2021-12-15 | 2022-03-04 | 天津大学 | Internal support device and method for double-machine girth welding of storage tank barrel section |
CN115121435A (en) * | 2022-08-01 | 2022-09-30 | 重庆工商大学 | Rust-proof treatment device for motor stator and rotor and use method |
CN115121435B (en) * | 2022-08-01 | 2023-05-26 | 重庆工商大学 | Rust-proof treatment device for stator and rotor of motor and use method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |