CN103357711B - Processing method for bending plate-shaped metal sample into U-shaped metal sample - Google Patents
Processing method for bending plate-shaped metal sample into U-shaped metal sample Download PDFInfo
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- CN103357711B CN103357711B CN201310268492.8A CN201310268492A CN103357711B CN 103357711 B CN103357711 B CN 103357711B CN 201310268492 A CN201310268492 A CN 201310268492A CN 103357711 B CN103357711 B CN 103357711B
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Abstract
The invention provides a processing method for bending a plate-shaped metal sample into a U-shaped metal sample. The plate-shaped metal sample (2) can be bent into the U-shaped metal sample (11) through a pair of bending loading pliers, wherein the pair of bending loading pliers comprises a left pliers bracket (3), a T-shaped threaded mandrel (4), a right pliers bracket (6), a reduction sleeve (7), a right pliers bow-shaped plate (9) and a left pliers bow-shaped plate (10); the processing method comprises the following steps: the left pliers bow-shaped plate and the right pliers bow-shaped plate are opened freely, the centering line of the plate-shaped metal sample (2) is pressed below the reduction sleeve and the plate-shaped metal sample (2) is fixed through a positioning bolt (1); the effective length of a limit bolt (8) is adjusted to equal to the width of the U-shaped metal sample (11) after bending; the left pliers bow-shaped plate and the right pliers bow-shaped plate are tightly held manually, so as to fold the bending loading pliers, so that the plate-shaped metal sample is bent into the U-shaped metal sample. The processing method has the advantages that the parallelism of two arms of the U-shaped metal sample is guaranteed, squeezing phenomenon on external surfaces of two arms of the U-shaped metal sample, which is caused by bending is avoided, the operation is simple, fast, safe and reliable, and the time and labor are saved.
Description
Technical field
The invention belongs to metal bending art field, refer more particularly to a kind of processing method plate-shape metal sample being bent to U-shaped test button.
Background technology
To the stress corrosion (cracking) test of U-shaped test button, to need before stress corrosion (cracking) test need by testing machine or frock clamp plate-shape metal sample bending machining to U-shaped test button, plate-shape metal sample is bent to U-shaped test button by general normal employing three-point bending loading principle, due to the self-characteristic that three-point bending loads, the following situation of normal appearance in bending loading procedure:
1, in three-point bending loading procedure, the position of plate-shape metal sample is not easy to fix, the parallel problem of U-shaped two-arm that bends be difficult to ensure, cause the local stress Relatively centralized of plate-shape metal sample;
2, the load(ing) point in three-point bending loading is at the middle part of plate-shape metal sample, and the outer surface of plate-shape metal sample easily crushes injury in three-point bending loading procedure;
3, the outer roller loaded plate-shape metal sample both sides is owing to being movable, therefore the difficulty controlled its amount of deflection of plate-shape metal sample of different size is larger;
4, the operating process difficulty of three-point bending loading is comparatively large, and inconvenient.
Summary of the invention
The present invention is a kind of processing method plate-shape metal sample being bent to U-shaped test button, this processing method can solve above-mentioned existing four problems, both plate-shape metal sample its two-arm parallel when bending to U-shaped test button can have been ensured, also plate-shape metal sample its outer surface when bending to U-shaped test button can be avoided to crush injury, and accurately can ensure the shaping amount of deflection of U-shaped test button, simple to operate, quick, time saving and energy saving, safe and reliable.
For achieving the above object, the present invention adopts following technical scheme:
A kind of processing method plate-shape metal sample being bent to U-shaped test button, this processing method uses bending loading and clamps, plate-shape metal sample can be bent to U-shaped test button by bending loading pincers, the length set when U-shaped test button launches equals the length of plate-shape metal sample, set the cross-sectional width=H of the single cross-sectional width=plate-shape metal sample of U-shaped test button, the interior bending diameter setting U-shaped test button is D, set U-shaped test button bend after both sides effective width=H
1, the bending pincers that load comprise left pincers support, T-shaped threaded mandrel, right pincers support, drill holder, right pincers bow plate and left pincers bow plate, and feature of the present invention is:
Right pincers bow plate is identical but assemble direction on the contrary and to assemble be polygon convex afterwards with the left profile of bend plate that clamp, right pincers bow plate and left pincers are bent plate and are had handle section respectively, linkage section, loaded segment and jaw section, described handle section to be connected with described loaded segment transition by described linkage section and makes described handle section be parallel to described loaded segment, described loaded segment connects with described jaw section and makes the angle < 90 ° that described loaded segment and described jaw section are formed, described in left pincers bow plate, the outer end, inner side two of jaw section is fixed with the left pincers support of band left hole respectively and is configured with left inside screwed hole inside loaded segment described in it, described in right pincers bow plate, the inner, inner side two of jaw section is fixed with the right pincers support of band right hole respectively and is configured with right inside screwed hole inside loaded segment described in it, outer wide between an inner width=two right pincers support between two left pincers supports, the external diameter of the internal diameter=T-shaped threaded mandrel of the internal diameter=described right hole of described left hole, two right pincers supports are plugged between two left pincers supports, it is made to fix by nut again through after described left hole and described right hole wide T-shaped threaded mandrel outer between left for > two pincers support, nut fixes rear right pincers bow plate and left pincers bow plate angle >=180 ° of freely launching around T-shaped threaded mandrel, T-shaped threaded mandrel wears drill holder, the internal diameter of drill holder mates with the external diameter of T-shaped threaded mandrel, the external diameter of drill holder mates with D, inner width=H between a length=two right pincers support of drill holder,
First on plate-shape metal sample, join brill endoporus, the joining of described endoporus bore position can bend to U-shaped test button with plate-shape metal sample and be as the criterion, the drill holder mated with it to be arranged in the middle part of T-shaped threaded mandrel according to bending diameter D in U-shaped test button again and to make drill holder be fixed between two right pincers supports with nut, open left pincers bow plate and right pincers bow plate make it be in described free expanded position, the center line of plate-shape metal sample is pressed under drill holder, join the one end of boring described endoporus be positioned at the inner side of jaw section described in left pincers bow plate and by bolt, plate-shape metal sample be fixed, do not join the one end of boring described endoporus and be positioned at jaw section described in right pincers bow plate, connect caging bolt in described right inside screwed hole inward turning and make caging bolt withstand on the left effective length=H clamped inside jaw section described in bow plate
1left pincers of manually holding with a firm grip respectively afterwards bend the described handle section of plate and right pincers bow plate and make described bending loading clamp together around T-shaped threaded mandrel, until just calculated when caging bolt withstands on inside jaw section described in left pincers bow plate, plate-shape metal sample is bent to U-shaped test button, when U-shaped test button be finalized and not resilience time manually unclamp the described handle section of left pincers bow plate and right pincers bow plate again, open left pincers bow plate and right pincers bend plate and pull down T-shaped threaded mandrel and can take out U-shaped test button.
The effective length of loaded segment described in the effective length >=twice of described handle section.
Owing to adopting technical scheme described above, the present invention produces following good effect:
1, using the symmetrical centre of plate-shape metal sample as the strong point its two ends as stress point, and by bolt, plate-shape metal sample is fixed on jaw section inside region described in left pincers bow plate, plate-shape metal sample is made to be bent to U-shaped test button by the control of caging bolt again, so both can ensure the collimation of U-shaped test button two-arm, also can avoid producing to squeeze to U-shaped test button two-arm outer surface when being bent hindering phenomenon, the shaping amount of deflection of U-shaped test button is precisely controlled.
2, under processing method of the present invention, use the bending pincers that load not need machinery equipment, only just plate-shape metal sample can be processed into U-shaped test button by manual operation, simple to operate, quick, time saving and energy saving, safe and reliable.
3, bending loading of the present invention is clamped down on and is done simply, carries light and handy, easy to use.
Accompanying drawing explanation
Fig. 1 is deployed configuration simplified schematic diagram when loading pincers loading tabular test button.
Fig. 2 loads the conjunction that plate-shape metal sample to bend to U-shaped test button by pincers to close structural representation sketch.
In above-mentioned figure, 1-bolt; 2-plate-shape metal sample; The left pincers support of 3-: 4-T type threaded mandrel; 5-nut; The right pincers support of 6-; 7-drill holder; 8-caging bolt; 9-right pincers bow plate; 10-left pincers bow plate; The U-shaped test button of 11-.
Detailed description of the invention
The present invention is a kind of processing method plate-shape metal sample being bent to U-shaped test button, this processing method can solve the four problems existed in background technology, both plate-shape metal sample its two-arm parallel when bending to U-shaped test button can have been ensured, also plate-shape metal sample its outer surface when bending to U-shaped test button can be avoided to crush injury, and accurately can ensure the shaping amount of deflection of U-shaped test button, simple to operate, quick, time saving and energy saving, safe and reliable.
Processing method of the present invention uses bending loading and clamps, and plate-shape metal sample can be bent to U-shaped test button by bending loading pincers.
The length set when U-shaped test button 11 launches equals the length of plate-shape metal sample 2, set the cross-sectional width=H of the single cross-sectional width=plate-shape metal sample of U-shaped test button, the interior bending diameter setting U-shaped test button is D, set U-shaped test button bend after both sides effective width=H
1.
Bending loading pincers of the present invention comprise left pincers support 3, T-shaped threaded mandrel 4, right pincers support 6, drill holder 7, right pincers bow plate 9 and left pincers bow plate 10, right pincers bow plate 9 is identical but assemble direction on the contrary and to assemble be polygon convex afterwards with the left profile of bend plate 10 that clamp, right pincers bow plate 9 bends plate 10 have handle section respectively with left pincers, linkage section, loaded segment and jaw section, described handle section to be connected with described loaded segment transition by described linkage section and makes described handle section be parallel to described loaded segment, described loaded segment connects with described jaw section and makes the angle < 90 ° that described loaded segment and described jaw section are formed, described in left pincers bow plate, the outer end, inner side two of jaw section is fixed with the left pincers support 3 of band left hole respectively and is configured with left inside screwed hole inside loaded segment described in it, described in right pincers bow plate, the inner, inner side two of jaw section is fixed with the right pincers support 6 of band right hole respectively and is configured with right inside screwed hole inside loaded segment described in it, the installation fixing position of left pincers support and right pincers support put as apparent from Fig. 1 can and be all positioned at the inner side of described polygon convex upper end.
Outer wide between an inner width=two right pincers support between two left pincers supports, the external diameter of the internal diameter=T-shaped threaded mandrel of the internal diameter=described right hole of described left hole, two right pincers supports are plugged between two left pincers supports, it is made to fix by nut 5 again through after described left hole and described right hole wide T-shaped threaded mandrel 4 outer between left for > two pincers support, nut 5 fixes rear right pincers bow plate 9 and left angle >=180 ° of clamping bow plate 10 and freely launching around T-shaped threaded mandrel 4, T-shaped threaded mandrel 4 wears drill holder 7, the internal diameter of drill holder 7 mates with the external diameter of T-shaped threaded mandrel 4, the external diameter of drill holder 7 mates with D, inner width=H between a length=two right pincers support of drill holder 7.
First on plate-shape metal sample 2, join brill endoporus, bore the joining of described endoporus position and can bend to U-shaped test button with plate-shape metal sample 2 and be as the criterion, this is apparent to those of ordinary skill in the art, does not separately repeat.
The drill holder 7 mated with it to be arranged in the middle part of T-shaped threaded mandrel 4 according to bending diameter D in U-shaped test button 11 again and to make drill holder 7 be fixed between two right pincers supports 6 with nut 5, open left pincers bow plate 10 and right pincers bend plate 9 make it be in described free expanded position, the center line of plate-shape metal sample 2 is pressed under drill holder 7, join the one end of boring described endoporus be positioned at the inner side of jaw section described in left pincers bow plate 10 and by bolt 3, plate-shape metal sample 2 be fixed, do not join the one end of boring described endoporus and be positioned at jaw section described in right pincers bow plate 9, caging bolt 8 is connected in described right inside screwed hole inward turning, caging bolt 8 is made to withstand on the left effective length=H clamped inside jaw section described in bow plate 10
1, left pincers of manually holding with a firm grip respectively afterwards bend the described handle section of plate 10 and right pincers bow plate 9 and make described bending loading clamp together around T-shaped threaded mandrel 4, until just calculated when caging bolt 8 withstands on inside jaw section described in left pincers bow plate, plate-shape metal sample 2 is bent to U-shaped test button 11, when U-shaped test button 11 be finalized and not resilience time manually unclamp again left pincers bow plate and right pincers bow plate described handle section, open left pincers bow plate 10 and right pincers bend plate 9 and pull down T-shaped threaded mandrel 4 and can take out U-shaped test button 11, U-shaped test button 11 is mainly used to do stress corrosion (cracking) test, U-shaped test button 11 meets the preparation requirement to test button in GB/T15790.3-1995 " corrosion stress corrosion test the 3rd part of metal and alloy: the Synthesis and applications of U-shaped bend specimen " and YB/T5362-2006 " stainless steel is stress corrosion (cracking) test method in fluidizing chlorination magnesium solution " after testing.
The effective length of loaded segment described in the effective length >=twice of described handle section, the difference ratio of the effective length of described handle section and the effective length of described loaded segment is larger, the bending loading force applied plate-shape metal sample is less, because the symmetrical centre of plate-shape metal sample its both ends of the surface under the support of drill holder 7 are stress points, and by bolt, plate-shape metal sample is fixed on jaw section inside region described in left pincers bow plate, plate-shape metal sample is made to be bent to U-shaped test button by the control of caging bolt again, so both can ensure the collimation of U-shaped test button two-arm, also can avoid producing to squeeze to U-shaped test button two-arm outer surface when being bent hindering phenomenon, namely interior bending diameter D can be precisely controlled for the shaping amount of deflection of U-shaped test button.
According to measuring and calculating: adopt three-point bending to need about 90min, and processing method of the present invention only needs 30min, illustrate and can meet above-mentioned standard-required completely by bending loading pincers, not only accurately can control the load deflection of tabular test button 2, also can avoid producing the problem of squeezing wound or causing local stress Relatively centralized to U-shaped test button 11 two sides when effectively bending, substantially reduce the bending load time, very easy to use.
Claims (2)
1. plate-shape metal sample is bent to the processing method of U-shaped test button by one kind, this processing method uses bending loading and clamps, plate-shape metal sample (2) can be bent to U-shaped test button (11) by bending loading pincers, the length set when U-shaped test button (11) launches equals the length of plate-shape metal sample (2), set the cross-sectional width=H of the single cross-sectional width=plate-shape metal sample (2) of U-shaped test button (11), the interior bending diameter setting U-shaped test button (11) is D, set U-shaped test button (11) bending after both sides effective width=H
1, the bending pincers that load comprise left pincers support (3), T-shaped threaded mandrel (4), right pincers support (6), drill holder (7), right pincers bow plate (9) and left pincers bow plate (10), it is characterized in that:
Right pincers bow plate (9) are identical but assemble direction on the contrary and to assemble be polygon convex afterwards with the left profile of bend plate (10) that clamp, right pincers bow plate (9) bend plate (10) have handle section respectively with left pincers, linkage section, loaded segment and jaw section, described handle section to be connected with described loaded segment transition by described linkage section and makes described handle section be parallel to described loaded segment, described loaded segment connects with described jaw section and makes the angle < 90 ° that described loaded segment and described jaw section are formed, be fixed with the left pincers support (3) of band left hole respectively in the outer end, inner side two of left pincers bow plate (10) described jaw section and inside loaded segment described in it, be configured with left inside screwed hole, be fixed with the right pincers support (6) of band right hole respectively in the inner, inner side two of right pincers bow plate (9) described jaw section and inside loaded segment described in it, be configured with right inside screwed hole, outer wide between an inner width=two right pincers support (6) between two left pincers supports (3), the external diameter of the internal diameter=T-shaped threaded mandrel of the internal diameter=described right hole of described left hole, two right pincers supports (6) are plugged between two left pincers supports (3), it is made to fix by nut (5) again through after described left hole and described right hole wide T-shaped threaded mandrel (4) outer between left for length > two pincers support (3), angle >=180 ° that fixing rear right pincers bow plate (9) of nut (5) and left pincers bow plate (10) are freely launched around T-shaped threaded mandrel (4), T-shaped threaded mandrel (4) is worn drill holder (7), the internal diameter of drill holder (7) mates with the external diameter of T-shaped threaded mandrel (4), the external diameter of drill holder (7) mates with D, inner width=H between a length=two right pincers support (6) of drill holder (7),
First on plate-shape metal sample (2), join brill endoporus, the joining of described endoporus bore position can bend to U-shaped test button (11) with plate-shape metal sample (2) and be as the criterion, according to the interior bending diameter D of U-shaped test button (11), the drill holder mated with it (7) being arranged on T-shaped threaded mandrel (4) middle part more also makes drill holder (7) be fixed between two right pincers supports (6) with nut (5), open left pincers bow plate (10) and right pincers bend plate (9) make it be in the described angle freely launched, the center line of plate-shape metal sample (2) is pressed under drill holder (7), join the one end of boring described endoporus be positioned at the inner side of left pincers bow plate (10) described jaw section and by bolt (1), plate-shape metal sample (2) be fixed, do not join the one end of boring described endoporus and be positioned at right pincers bow plate (9) described jaw section, connect caging bolt (8) in described right inside screwed hole inward turning and make caging bolt (8) withstand on the left effective length=H clamped inside bow plate (10) described jaw section
1, left pincers of manually holding with a firm grip respectively afterwards bend the described handle section of plate (10) and right pincers bow plate (9) and make described bending loading clamp together around T-shaped threaded mandrel (4), until just calculated when caging bolt (8) withstands on inside left pincers bow plate (10) described jaw section, plate-shape metal sample (2) is bent to U-shaped test button (11), when U-shaped test button (11) be finalized and not resilience time manually unclamp again left pincers bow plate (10) and right pincers bend plate (9) described handle section, open left pincers bow plate (10) and right pincers bend plate (9) and pull down T-shaped threaded mandrel (4) and can take out U-shaped test button (11).
2. a kind of processing method plate-shape metal sample being bent to U-shaped test button according to claim 1, is characterized in that: the effective length of loaded segment described in the effective length >=twice of described handle section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268492.8A CN103357711B (en) | 2013-07-01 | 2013-07-01 | Processing method for bending plate-shaped metal sample into U-shaped metal sample |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310268492.8A CN103357711B (en) | 2013-07-01 | 2013-07-01 | Processing method for bending plate-shaped metal sample into U-shaped metal sample |
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| CN103357711A CN103357711A (en) | 2013-10-23 |
| CN103357711B true CN103357711B (en) | 2015-06-03 |
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| CN106001209A (en) * | 2016-07-15 | 2016-10-12 | 上海电气核电设备有限公司 | Nuclear steam generator keeping bar bending tool and application method thereof |
| CN106442280A (en) * | 2016-08-27 | 2017-02-22 | 中石化炼化工程（集团）股份有限公司 | Device and method for detecting stress corrosion resistance |
| CN107219120A (en) * | 2017-05-03 | 2017-09-29 | 上海亚大塑料制品有限公司 | The rapid evaluation instrument and rapid method for assessment of a kind of butt fusion welding weld bond quality |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101618412A (en) * | 2009-07-27 | 2010-01-06 | 江苏银河电子股份有限公司 | Bending method of upper casing and lower casing of thin metal sheet |
| CN202893907U (en) * | 2012-10-31 | 2013-04-24 | 武汉钢铁(集团)公司 | Steel plate sample bending device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5402221B2 (en) * | 2009-04-30 | 2014-01-29 | コニカミノルタ株式会社 | Processing apparatus and processing method |
| US8601854B2 (en) * | 2011-02-14 | 2013-12-10 | Satoshi Sakai | Method of bending sheet metal |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618412A (en) * | 2009-07-27 | 2010-01-06 | 江苏银河电子股份有限公司 | Bending method of upper casing and lower casing of thin metal sheet |
| CN202893907U (en) * | 2012-10-31 | 2013-04-24 | 武汉钢铁(集团)公司 | Steel plate sample bending device |
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