CN106734372A - A kind of shaping methods of transformer L-type bending workpieces - Google Patents
A kind of shaping methods of transformer L-type bending workpieces Download PDFInfo
- Publication number
- CN106734372A CN106734372A CN201611157978.4A CN201611157978A CN106734372A CN 106734372 A CN106734372 A CN 106734372A CN 201611157978 A CN201611157978 A CN 201611157978A CN 106734372 A CN106734372 A CN 106734372A
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- bending
- steel plate
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- workpieces
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Classifications
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- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention relates to a kind of shaping methods of transformer L-type bending workpieces, belong to steel member manufacturing technology field.Technical scheme is：Transformer L-type bending workpieces are made, after steel plate bending, steel plate forms bending side（11）With non-bending side（12）Transformer L-type bending workpieces, if two ends of bending steel plate offset to bending side, are corrected by two parts using the principle of expanding with heat and contracting with cold of steel plate；To the non-bending side steel plate middle part flame heating of transformer L-type bending workpieces, after cooling, make transformer L-type bending workpieces middle part to bending side shifting, finally cause that transformer L-type bending workpieces flatness meets and require.The positive effect of the present invention：Bending workpieces flatness is corrected by way of flame heating steel sheet workpiece, bending steel plate is met use requirement；The flatness of transformer L-type bending workpieces reaches 2mm after correction.
Description
Technical field
The present invention relates to a kind of shaping methods of transformer L-type bending workpieces, belong to steel member manufacturing technology field.
Background technology
At present, many parts are the steel plate workpiece of L-type bending structure in transformer, and form is shown in accompanying drawing 1, for example, shell becomes
Tank wall, ABB tank walls, direct current folder oil guiding box etc..The making of L-type bending workpieces, is the mode blanking for first passing through gas flame cuttiug, then
Bending is carried out by bender.After bending, L-type steel plate deforms, and bending steel plate two ends offset to bending side, referring to the drawings
2, cause flatness undesirable, it is impossible to meet use requirement.
The content of the invention
It is an object of the invention to provide a kind of shaping methods of transformer L-type bending workpieces, by flame heating steel sheet work
The mode of part corrects bending workpieces flatness, bending steel plate is met use requirement, solves the above mentioned problem that background technology is present.
The technical scheme is that：
A kind of shaping methods of transformer L-type bending workpieces, operating method is as follows：
1. transformer L-type bending workpieces are made, after steel plate bending, steel plate forms bending side and non-bending side two parts, if folding
Two ends of curved steel plate offset to bending side, and transformer L-type bending workpieces are corrected using the principle of expanding with heat and contracting with cold of steel plate；It is right
The non-bending side steel plate middle part flame heating of transformer L-type bending workpieces, after cooling, makes in the middle of transformer L-type bending workpieces
Position causes that transformer L-type bending workpieces flatness meets to bending side shifting, finally and requires；
During correction, the surface at circular arc position and non-bending side to bending surface of steel plate carries out flame heating, and 250 DEG C of temperature-
300℃；Wherein：The surface of steel plate of circular arc position and non-bending side near circular arc position is heated using wire, and non-bending side is close to
The surface of steel plate at circular arc position is the 1/3 of non-bending side width using the scope that wire is heated；Non- bending side is away from circular arc position
Surface of steel plate using point-like heat, non-bending side is not roll over using the scope that point-like is heated away from the surface of steel plate at circular arc position
The 2/3 of curved side width.
The wire heating, is that heating flame is linearly moved, and surface of steel plate is heated.
The point-like heating, is that heating flame is aligned a bit, is not moved, and a heating, heating are fixed to surface of steel plate
After the completion of, then adjacent another point is heated, it is sequentially completed multipoint heating.
Two ends of bending steel plate offset to bending side, should be after gas cutting and have what stress was caused inside steel plate, utilize
The principle of expanding with heat and contracting with cold of steel plate, selects the operating method of innovation, transformer L-type bending workpieces is corrected, transformer L-type after correction
The flatness of bending workpieces reaches 2mm.
The positive effect of the present invention：Bending workpieces flatness is corrected by way of flame heating steel sheet workpiece, makes bending
Steel plate meets use requirement.
Brief description of the drawings
Fig. 1 is transformer L-type bending workpieces schematic diagram of the present invention；
Fig. 2 be transformer L-type bending workpieces bending of the present invention after deform schematic diagram；
Fig. 3 is that embodiment of the present invention transformer L-type bending workpieces correct schematic diagram；
In figure：Bending side 11, the heating 13, point-like of non-bending side 12, wire heat 14.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples：
A kind of shaping methods of transformer L-type bending workpieces, operating method is as follows：
1. transformer L-type bending workpieces are made, after steel plate bending, steel plate forms bending side 11 and non-two parts of bending side 12, such as
Two ends of fruit bending steel plate offset to bending side, and transformer L-type bending workpieces are rectified using the principle of expanding with heat and contracting with cold of steel plate
Just；To the non-bending side steel plate middle part flame heating of transformer L-type bending workpieces, after cooling, make transformer L-type bending workpieces
Middle part causes that transformer L-type bending workpieces flatness meets to bending side shifting, finally and requires；
During correction, the surface at circular arc position and non-bending side to bending surface of steel plate carries out flame heating, and 250 DEG C of temperature-
300℃；Wherein：The surface of steel plate of circular arc position and non-bending side near circular arc position heats 13 using wire, and non-bending side is leaned on
The surface of steel plate at nearly circular arc position is the 1/3 of non-bending side width using the scope that wire is heated；Non- bending side is away from arc sections
Using point-like heating 14, non-bending side is the surface of steel plate of position using the scope that point-like is heated away from the surface of steel plate at circular arc position
The 2/3 of non-bending side width.
The wire heating 13, is that heating flame is linearly moved, and surface of steel plate is heated.
The point-like heating 14, is that heating flame is aligned a bit, is not moved, and a heating is fixed to surface of steel plate, plus
After the completion of heat, then adjacent another point is heated, be sequentially completed multipoint heating.
Two ends of bending steel plate offset to bending side, should be after gas cutting and have what stress was caused inside steel plate, utilize
The principle of expanding with heat and contracting with cold of steel plate, selects the operating method of innovation, transformer L-type bending workpieces is corrected, transformer L-type after correction
The flatness of bending workpieces reaches 2mm.
Claims (2)
1. a kind of shaping methods of transformer L-type bending workpieces, it is characterised in that operating method is as follows：
1. transformer L-type bending workpieces are made, after steel plate bending, steel plate forms bending side（11）With non-bending side（12）Two
Point, if two ends of bending steel plate offset to bending side, using the principle of expanding with heat and contracting with cold of steel plate to transformer L-type bender
Part is corrected；To the non-bending side steel plate middle part flame heating of transformer L-type bending workpieces, after cooling, make transformer L-type bending
Workpiece middle part causes that transformer L-type bending workpieces flatness meets to bending side shifting, finally and requires；
During correction, the surface at circular arc position and non-bending side to bending surface of steel plate carries out flame heating, and 250 DEG C of temperature-
300℃；Wherein：The surface of steel plate of circular arc position and non-bending side near circular arc position is heated using wire（13）, non-bending side
Surface of steel plate near circular arc position is the 1/3 of non-bending side width using the scope that wire is heated；Non- bending side is away from circular arc
The surface of steel plate at position is heated using point-like（14）, the model that non-bending side is heated away from the surface of steel plate at circular arc position using point-like
Enclose is the 2/3 of non-bending side width.
2. shaping methods of a kind of transformer L-type bending workpieces according to claim 1, it is characterised in that the wire adds
Heat（13）, it is that heating flame is linearly moved, surface of steel plate is heated；The point-like heating（14）, it is heating fire
Flame is aligned a bit, does not move, and a heating is fixed to surface of steel plate, after the completion of heating, then adjacent another point is added
Heat, is sequentially completed multipoint heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157978.4A CN106734372B (en) | 2016-12-15 | 2016-12-15 | A kind of shaping methods of transformer L-type bending workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157978.4A CN106734372B (en) | 2016-12-15 | 2016-12-15 | A kind of shaping methods of transformer L-type bending workpieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106734372A true CN106734372A (en) | 2017-05-31 |
| CN106734372B CN106734372B (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611157978.4A Active CN106734372B (en) | 2016-12-15 | 2016-12-15 | A kind of shaping methods of transformer L-type bending workpieces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304554A (en) * | 2018-12-05 | 2019-02-05 | 保定天威电气设备结构有限公司 | A kind of restorative procedure of power transformer enclosure postwelding angular deviation |
| CN115971292A (en) * | 2023-03-17 | 2023-04-18 | 常州思源东芝变压器有限公司 | Power transformer shell forming processing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4078950A (en) * | 1976-08-26 | 1978-03-14 | Union Carbide Corporation | Spot scarfing nozzle for use in gang arrangement |
| US6675625B1 (en) * | 2002-11-11 | 2004-01-13 | Ford Motor Company | Method and arrangement for changing the shape of thin-shell articles manufactured by spray-form techniques |
| CN102463276A (en) * | 2010-11-15 | 2012-05-23 | 中国北车集团大同电力机车有限责任公司 | Manufacturing method of a bent part and bending machine |
| CN204602937U (en) * | 2015-02-05 | 2015-09-02 | 江门市南洋船舶工程有限公司 | A kind of round steel thermal flexure device for the manufacture of ship's outfit |
| CN105478531A (en) * | 2015-12-17 | 2016-04-13 | 保定天威电气设备结构有限公司 | Shaping method used after deformation of copper shield used for transformer |
| CN205393221U (en) * | 2016-03-10 | 2016-07-27 | 上海江南长兴重工有限责任公司 | Coverboard denting deformation attacks with fire to correct and uses frock |
-
2016
- 2016-12-15 CN CN201611157978.4A patent/CN106734372B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4078950A (en) * | 1976-08-26 | 1978-03-14 | Union Carbide Corporation | Spot scarfing nozzle for use in gang arrangement |
| US6675625B1 (en) * | 2002-11-11 | 2004-01-13 | Ford Motor Company | Method and arrangement for changing the shape of thin-shell articles manufactured by spray-form techniques |
| CN102463276A (en) * | 2010-11-15 | 2012-05-23 | 中国北车集团大同电力机车有限责任公司 | Manufacturing method of a bent part and bending machine |
| CN204602937U (en) * | 2015-02-05 | 2015-09-02 | 江门市南洋船舶工程有限公司 | A kind of round steel thermal flexure device for the manufacture of ship's outfit |
| CN105478531A (en) * | 2015-12-17 | 2016-04-13 | 保定天威电气设备结构有限公司 | Shaping method used after deformation of copper shield used for transformer |
| CN205393221U (en) * | 2016-03-10 | 2016-07-27 | 上海江南长兴重工有限责任公司 | Coverboard denting deformation attacks with fire to correct and uses frock |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304554A (en) * | 2018-12-05 | 2019-02-05 | 保定天威电气设备结构有限公司 | A kind of restorative procedure of power transformer enclosure postwelding angular deviation |
| CN115971292A (en) * | 2023-03-17 | 2023-04-18 | 常州思源东芝变压器有限公司 | Power transformer shell forming processing equipment |
| CN115971292B (en) * | 2023-03-17 | 2023-07-18 | 常州思源东芝变压器有限公司 | Power transformer shell forming and processing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106734372B (en) | 2018-07-17 |
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Effective date of registration: 20191031 Address after: 071056 No. 2222 Print-Rite West Road, Hebei, Baoding Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071056, No. 2222 Print-Rite West Road, Xinshi District, Hebei, Baoding Patentee before: Baoding Tianwei Electrical Equipment Structure Co.,Ltd. |
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