CN102009294A - Predeforming device for welding - Google Patents
Predeforming device for welding Download PDFInfo
- Publication number
- CN102009294A CN102009294A CN2010102678143A CN201010267814A CN102009294A CN 102009294 A CN102009294 A CN 102009294A CN 2010102678143 A CN2010102678143 A CN 2010102678143A CN 201010267814 A CN201010267814 A CN 201010267814A CN 102009294 A CN102009294 A CN 102009294A
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- welding
- jack
- weldment
- predeformation
- predeforming
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Abstract
The invention relates to auxiliary equipment for a welding process and aims at providing a predeforming device with simple structure for welding. Vertical brackets are respectively arranged at two ends of a horizontally-arranged strip-shaped main frame and provided with fixing holes for fixing welding pieces; and a jack is arranged in the middle of the main frame.
Description
Technical field
The present invention relates to a kind of auxiliary equipment that is used for welding procedure.
Background technology
When the welding thin-plate element, because the inhomogeneous heating of thermal source forms residual compression plastic strain field and residual stress field on member.The residual stress field will make the component failure distortion.Eliminate the common method that adopts of thin-plate element welding deformation and have two kinds: the first is carried out predeformation to workpiece before weldering, use the predeformation opposite with welding deformation to compensate welding deformation amount; It two is distortion of having occurred of rectification again after welding.
When welding, need to adopt predeformation technology usually, be on special welding positioner, utilize locking device with weldment oppositely exerting pressure to its welding deformation in advance, thereby make it produce a certain amount of reversal deformation, after weldment welding completion, unclamp locking device, make weldment just in time reach straight requirement or minimizing welding deformation amount.At present the locking device used always of people mainly contains the combining form etc. of combining form, horse plate and the wedge of C type folder, reaction frame and jack.Typical predeformation apparatus structure is all complicated partially.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of welding simple in structure predeformation device is provided.
Purpose of the present invention can reach by following measure: be respectively equipped with vertical support at the body frame of the bar shaped of horizontal positioned near the position at two ends, support is provided with the fixing hole that is used for fixing weldment, is provided with jack in the middle of the described body frame.
When using this welding with the predeformation device, with the weldment solder side of bar shaped up, two places in the described fixing hole, described then jack upwards promotes to impel described weldment predeformation, weld then, remove the thrust that described jack makes progress after welding finishes, the residual stress field that described weldment produces in welding process can be offset by the prestressing force that jack applies, and has avoided described weldment because of welding deformation.
The characteristics of technique scheme are: simple in structure, easily implement.
Further: described jack is a mechanical type.Because mechanical type can be adjusted required promotion stroke more easily than fluid pressure type.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 places behind the weldment the not schematic diagram of application of force state of jack in the embodiment of the invention;
Fig. 3 is the schematic diagram of weldment stress deformation in the embodiment of the invention.
The specific embodiment
Known concrete structure and characteristic are no longer set forth at this in this programme.As shown in Figure 1: the leg of two 12# channel-section steels is welded into the body frame 1 of square column type relatively, and body frame 1 is bolted on the ground, and body frame 1 two ends vertically are welded with the support 2 that two blocks of 16mm steel plates are made, and support 2 upper ends have the fixing hole 3 of square.Screw type jack 4 is bolted to body frame 1 middle part.
Use flow process that this welding welds with the predeformation device as shown in Figure 2: the two ends of bar shaped weldment 5 are placed on respectively in the fixing hole 3, weldment 5 need solders side are (as shown in Figure 2) up, drive upwards applied thrust of jack 4 then, make weldment 5 bendings (as shown in Figure 3), begin then weldment 5 is carried out welding operation, the welding operation rear drive jack 4 that finishes removes upwards thrust, take off weldment 5, the prestressing force that residual stress field that produces in the welding process and jack 4 apply offsets, and avoided the bigger distortion of weldment 5.
Above-described only is preferred implementation of the present invention; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not influence effect of the invention process and practical applicability.
Claims (2)
1. the predeformation device is used in welding, and it is characterized in that: the body frame of bar shaped is provided with jack and two supports, and described jack is located at the centre of described two stands, and described support is provided with fixing hole.
2. welding predeformation device according to claim 1 is characterized in that: described jack is the mechanical type jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102678143A CN102009294A (en) | 2010-08-31 | 2010-08-31 | Predeforming device for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102678143A CN102009294A (en) | 2010-08-31 | 2010-08-31 | Predeforming device for welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102009294A true CN102009294A (en) | 2011-04-13 |
Family
ID=43839724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102678143A Pending CN102009294A (en) | 2010-08-31 | 2010-08-31 | Predeforming device for welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102009294A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084775A (en) * | 2013-01-15 | 2013-05-08 | 中国核工业二三建设有限公司 | Method of assembling main pipe and branch pipe of welded pipeline and tooling used for assembling and welding |
| CN104907362A (en) * | 2015-05-19 | 2015-09-16 | 广东韶钢松山股份有限公司 | Correcting method for collapse electric dedusting top plate |
| CN107225358A (en) * | 2017-07-28 | 2017-10-03 | 郑州煤矿机械集团股份有限公司 | Jack cylinder barrel annex welding method |
| CN108340069A (en) * | 2018-04-13 | 2018-07-31 | 大连理工大学 | The prestress clamp that workpiece deforms is prevented based on agitating friction welding |
| CN112213013A (en) * | 2020-10-12 | 2021-01-12 | 贵州航天天马机电科技有限公司 | Testing device for regulating and controlling welding residual stress and deformation through pre-stretching |
-
2010
- 2010-08-31 CN CN2010102678143A patent/CN102009294A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084775A (en) * | 2013-01-15 | 2013-05-08 | 中国核工业二三建设有限公司 | Method of assembling main pipe and branch pipe of welded pipeline and tooling used for assembling and welding |
| CN103084775B (en) * | 2013-01-15 | 2016-08-31 | 中国核工业二三建设有限公司 | The supervisor of welding pipeline and the method for arm and welding frock |
| CN104907362A (en) * | 2015-05-19 | 2015-09-16 | 广东韶钢松山股份有限公司 | Correcting method for collapse electric dedusting top plate |
| CN104907362B (en) * | 2015-05-19 | 2017-03-29 | 广东韶钢松山股份有限公司 | A kind of bearing calibration of the electric precipitation top board that subsides |
| CN107225358A (en) * | 2017-07-28 | 2017-10-03 | 郑州煤矿机械集团股份有限公司 | Jack cylinder barrel annex welding method |
| CN107225358B (en) * | 2017-07-28 | 2019-03-08 | 郑州煤矿机械集团股份有限公司 | Jack cylinder barrel attachment welding method |
| CN108340069A (en) * | 2018-04-13 | 2018-07-31 | 大连理工大学 | The prestress clamp that workpiece deforms is prevented based on agitating friction welding |
| CN108340069B (en) * | 2018-04-13 | 2023-10-13 | 大连理工大学 | Prestress clamp for preventing workpiece deformation based on friction stir welding |
| CN112213013A (en) * | 2020-10-12 | 2021-01-12 | 贵州航天天马机电科技有限公司 | Testing device for regulating and controlling welding residual stress and deformation through pre-stretching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110413 |