CN102989848A - Heavy I-beam bending forming control process - Google Patents
Heavy I-beam bending forming control process Download PDFInfo
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- CN102989848A CN102989848A CN201210389451XA CN201210389451A CN102989848A CN 102989848 A CN102989848 A CN 102989848A CN 201210389451X A CN201210389451X A CN 201210389451XA CN 201210389451 A CN201210389451 A CN 201210389451A CN 102989848 A CN102989848 A CN 102989848A
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Abstract
The invention relates to a heavy I-beam bending forming control process which is used for bending and processing camber beams. The bending forming control process comprises the following steps of: calculating the spread length of an I-beam, and blanking; debugging parameters of bending equipment, and positioning the I-beam; and bending the I-beam for forming. The effective heavy I-beam bending forming control process is developed on the basis that a key process control point of bending forming of the I-beam is determined by virtue of analysis of a theoretical mechanical principle, and the bending process equipment matched with the process is also manufactured on the basis. Through practical production testing, the key control point of the process is reasonable, the percent of pass of I-beams subjected to bending forming is high, and the heavy I-beam bending forming control process is economical and practical, is applicable to mass production of the I-beams, is suitable for wide promotion and application and has remarkable economic benefits.
Description
Technical field
The present invention relates to the I-steel bending molding process, relate in particular to a kind of heavy I-steel brake forming control technique, be used for the processing and manufacturing of heavy I-steel.
Background technology
In numerous steel structure factory buildings, there are the various structures spares such as various cushion caps, trusses, equipment platform, these structural members all require to use the I-steel brake forming.In the manufacturing process of this type of structural member, be the crudy of assurance I-steel and the installation accuracy of annex, often need through meticulous industrial analysis, engineer testing repeatedly, corresponding structural member is explored the manufacture craft relevant with summary, to guarantee product quality.
However, the I-steel brake forming still quality problems can occur, and especially to heavy I-steel brake forming, quality problems are more outstanding.How effectively avoiding quality problems, explore the I-steel bending molding process that is fit to batch production is a technical difficult problem always.
Summary of the invention
The deficiency that the present invention exists for prior art just provides a kind of heavy I-steel brake forming control technique.
For addressing the above problem, the technical solution used in the present invention is as follows:
Heavy I-steel brake forming control technique, the bending machining camber beam, described brake forming control technique may further comprise the steps:
Step 1: calculate I-steel length of run and blanking;
Girder steel at I-steel marks the development size that camber beam need bend partial-length, identifies center line and camber beam making end line at camber beam, adds allowance at the length two ends according to actual conditions, and allowance is 10% of length of run; Before camber beam blanking cutting, marking-out rule little progress row is rechecked, to guarantee the accuracy of blank size; The girder steel of I-steel is placed on horizontal level cuts according to the size after reviewing, cut complete after with burr removing;
Step 2: debugging bending apparatus parameter, and position;
According to the specification of the radian of required bending size and camber beam, material etc., the parameter of bending apparatus is debugged, and position; With chain block that the stiff end of camber beam is fixed, guarantee that when bending stiff end can not be subjected to displacement, the camber beam two ends fixedly be lower than 10 millimeters ~ 15 millimeters of camber beam center lines;
Step 3: brake forming;
Use hoist engine to make camber beam, operate with crawl when crooked, the deflection of observing camber beam is controlled the moulding of camber beam, stressed when larger at camber beam, carry out heat treated with flame, guarantee that camber beam produces plastic deformation, the triangle that heating region contacts with bending apparatus take camber beam is as main.
As improvement of the technical scheme, the bending apparatus that described brake forming control technique is used, comprise: the first runner, the second runner and the 3rd runner, the first runner, the second runner are arranged on camber beam to be bent one side, the 3rd runner is arranged on the opposite side of camber beam to be bent, and the 3rd runner is in the first runner and the second runner central lower position, and the first runner, the second runner and the 3rd runner shape, size are identical.
As improvement of the technical scheme, the 3rd runner of described bending apparatus maintains static, the first runner, the relative translation of relative the 3rd runner of the second runner.
The present invention compared with prior art, implementation result of the present invention is as follows:
Heavy I-steel brake forming control technique of the present invention, at first by theoretical Force principle analysis, technology key control point when determining the I-steel brake forming, explore on this basis an effective brake forming control technique, and produce the bending process that uses with this process matching and equip, pass through production inspection, this process CCP is reasonable, economical and practical, I-steel brake forming qualification rate is high, be suitable for producing in enormous quantities, be fit to wide popularization and application, remarkable in economical benefits.
Description of drawings
Force structure schematic diagram when Fig. 1 is heavy I-steel bending of the present invention;
Force analysis schematic diagram when Fig. 2 is heavy I-steel bending of the present invention;
Stress model principle schematic when Fig. 3 is heavy I-steel bending of the present invention;
Suffered shearing coordinate projection schematic diagram when Fig. 4 is heavy I-steel bending of the present invention;
Suffered moment of flexure coordinate projection schematic diagram when Fig. 5 is heavy I-steel bending of the present invention;
Fig. 6 is heavy I-steel warp architecture schematic diagram of the present invention.
The specific embodiment
Content of the present invention is described below in conjunction with specific embodiments.
Force structure schematic diagram during as shown in Figure 1, for heavy I-steel bending of the present invention.I-steel mainly is the axis that vertically acts on beam by the external force on beam in BENDING PROCESS, and making is that the axis deformation of straight line is curve originally, allows it produce corresponding plastic bending deformation, to reach corresponding arc size requirement.According to force structure schematic diagram shown in Figure 1, force analysis schematic diagram in the time of can drawing out its bending, as shown in Figure 2.
As shown in Figure 3, stress model principle schematic during for heavy I-steel bending of the present invention, suffered moment of flexure coordinate projection schematic diagram when suffered shearing coordinate projection schematic diagram when Fig. 4 is its bending, Fig. 5 are its bending.Shearing Q equals cross section m ~ m with the algebraical sum of the projection of right all external force on beam axle vertical line; Moment M equals cross section m ~ m with the algebraical sum of right all camber beam pair cross-section centre of form moments.Because shearing and moment of flexure be left section with right section at the upper interactional internal force of cross section m ~ m, so, right section act on left section with right section shearing Q and moment M, must be numerically equal to left section shearing Q and moment M that acts on right section, but opposite direction.So, no matter use the external force in cross section m ~ m left side, or the external force on cross section m ~ m right side calculating shearing Q and moment M, its numerical value equates, but opposite direction.
According to above mechanics principle analysis, heavy I-steel warp architecture schematic diagram of the present invention, as shown in Figure 6.For bending machining camber beam 1, bending apparatus of the present invention comprises: the first runner 2, the second runner 3 and the 3rd runner 4.The first runner 2, the second runner 3 are arranged on camber beam to be bent 1 one sides, and the 3rd runner 4 is arranged on the opposite side of camber beam to be bent 1, and the 3rd runner 4 is in the first runner 2 and the second runner 3 central lower positions.The first runner 2, the second runner 3 and the 3rd runner 4 shapes, big or small identical.Described bending apparatus is installed on the base 5, when crooked, camber beam 1 one ends are fixed, the 3rd runner 4 maintains static, by the first runner 2, the 3rd runner 4 along C to the while parallel, relative motion by the first runner 2, the 3rd runner 4 and the second runner 3 and to the mutual extruding of camber beam 1 finally forms the bool of certain radian.
According to above mechanics principle analysis, in order to realize desirable I-steel brake forming of the present invention, prevent quality problems, described brake forming control technique of the present invention is as follows:
Step 1: calculate I-steel length of run and blanking;
Girder steel at I-steel marks the development size that camber beam 1 need bend partial-length, identifies center line and camber beam 1 making end line at camber beam 1, suitably adds allowance according to actual conditions at the length two ends, and general allowance is 10% of length of run; Before camber beam 1 blanking cutting, reply marking-out rule little progress row is rechecked, to guarantee the accuracy of blank size; The girder steel of I-steel is placed on horizontal level cuts according to the size after reviewing, cut complete after with burr removing.
Step 2: debugging bending apparatus parameter, and position;
According to the specification of the radian of required bending size and camber beam 1, material etc., the parameter of bending apparatus is debugged, and position; With chain block that the stiff end of camber beam 1 is fixed, guarantee that when bending stiff end can not be subjected to displacement, the fixing of camber beam 1 two ends should be lower than 10 millimeters ~ 15 millimeters of camber beam 1 center lines.
Step 3: brake forming;
Use hoist engine to make camber beam 1, should operate with crawl when crooked, the deflection of observing camber beam 1 is controlled the moulding of camber beam 1, stressed when larger at camber beam, carry out heat treated with flame, guarantee that camber beam 1 produces plastic deformation, the triangle that heating region contacts with bending apparatus take camber beam 1 is as main; When crooked, answer the gap between the base 5 of timing monitoring camber beam 1 and bending apparatus, when gap during greater than 5 millimeters, be aided with the location with frock, the distortion in order to avoid camber beam 1 is distorted.
In the whole BENDING PROCESS, should guarantee that camber beam 1 fits tightly with the first runner 2, the second runner 3 and the 3rd runner 4 all the time.
After one end bending of camber beam 1 is finished, unclamp camber beam 1, the fixing other end again, repeating step three can be realized the heavy I-steel steel member of final bending like this.
Above content is the detailed description of the present invention being done in conjunction with concrete preferred embodiment, can not assert that implementation of the present invention only limits to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the scope of protection of the invention.
Claims (3)
1. heavy I-steel brake forming control technique, bending machining camber beam (1) is characterized in that, described brake forming control technique may further comprise the steps:
Step 1: calculate I-steel length of run and blanking;
Girder steel at I-steel marks the development size that camber beam (1) need bend partial-length, identifies center line and camber beam (1) making end line at camber beam (1), adds allowance at the length two ends according to actual conditions, and allowance is 10% of length of run; Before camber beam (1) blanking cutting, marking-out rule little progress row is rechecked, to guarantee the accuracy of blank size; The girder steel of I-steel is placed on horizontal level cuts according to the size after reviewing, cut complete after with burr removing;
Step 2: debugging bending apparatus parameter, and position;
According to the specification of the radian of required bending size and camber beam (1), material etc., the parameter of bending apparatus is debugged, and position; With chain block that the stiff end of camber beam (1) is fixed, guarantee that when bending stiff end can not be subjected to displacement, camber beam (1) two ends fixedly be lower than 10 millimeters ~ 15 millimeters of camber beam (1) center lines;
Step 3: brake forming;
Use hoist engine to make camber beam (1), operate with crawl when crooked, the deflection of observing camber beam (1) is controlled the moulding of camber beam (1), stressed when larger at camber beam, carry out heat treated with flame, guarantee that camber beam (1) produces plastic deformation, the triangle that heating region contacts with bending apparatus take camber beam (1) is as main.
2. heavy I-steel brake forming control technique as claimed in claim 1, it is characterized in that, the bending apparatus that described brake forming control technique is used, comprise: the first runner (2), the second runner (3) and the 3rd runner (4), the first runner (2), the second runner (3) is arranged on camber beam to be bent (1) one side, the 3rd runner (4) is arranged on the opposite side of camber beam to be bent (1), and the 3rd runner (4) is at the first runner (2) and the second runner (3) central lower position, the first runner (2), the second runner (3) and the 3rd runner (4) shape, size is identical.
3. heavy I-steel brake forming control technique as claimed in claim 2 is characterized in that the 3rd runner (4) of described bending apparatus maintains static, the first runner (2), relatively translation of relative the 3rd runner of the second runner (3) (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210389451XA CN102989848A (en) | 2012-10-15 | 2012-10-15 | Heavy I-beam bending forming control process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210389451XA CN102989848A (en) | 2012-10-15 | 2012-10-15 | Heavy I-beam bending forming control process |
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| CN102989848A true CN102989848A (en) | 2013-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769386A (en) * | 2022-05-31 | 2022-07-22 | 广东中博交通环保设备有限公司 | H-shaped steel bending forming equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498703A (en) * | 2002-11-11 | 2004-05-26 | 金云龙 | Automatic roll forming technique in roller trio type for bending tube and its equipment |
| WO2004045833A1 (en) * | 2002-11-20 | 2004-06-03 | Uros Turanjanin | Bending pvc profiles with heaters and cylinders |
| CN101791645A (en) * | 2009-10-23 | 2010-08-04 | 武船重型工程有限公司 | Stepwise arch rib forming process of large-span spacing steel pipe arch |
| CN101952062A (en) * | 2008-02-12 | 2011-01-19 | Cml国际有限公司 | The variable radius of curvature serves method and the machine of controlling like this of the roller type bending machine of bending elongation workpiece are continuously pressed in inspection and control |
-
2012
- 2012-10-15 CN CN201210389451XA patent/CN102989848A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498703A (en) * | 2002-11-11 | 2004-05-26 | 金云龙 | Automatic roll forming technique in roller trio type for bending tube and its equipment |
| WO2004045833A1 (en) * | 2002-11-20 | 2004-06-03 | Uros Turanjanin | Bending pvc profiles with heaters and cylinders |
| CN101952062A (en) * | 2008-02-12 | 2011-01-19 | Cml国际有限公司 | The variable radius of curvature serves method and the machine of controlling like this of the roller type bending machine of bending elongation workpiece are continuously pressed in inspection and control |
| CN101791645A (en) * | 2009-10-23 | 2010-08-04 | 武船重型工程有限公司 | Stepwise arch rib forming process of large-span spacing steel pipe arch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769386A (en) * | 2022-05-31 | 2022-07-22 | 广东中博交通环保设备有限公司 | H-shaped steel bending forming equipment |
| CN114769386B (en) * | 2022-05-31 | 2022-10-25 | 广东中博交通环保设备有限公司 | Bending forming equipment for H-shaped steel |
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Application publication date: 20130327 |