CN111660022A - Flatness control device and method for machining steel roof beam flange plate - Google Patents
Flatness control device and method for machining steel roof beam flange plate Download PDFInfo
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- CN111660022A CN111660022A CN201910167383.4A CN201910167383A CN111660022A CN 111660022 A CN111660022 A CN 111660022A CN 201910167383 A CN201910167383 A CN 201910167383A CN 111660022 A CN111660022 A CN 111660022A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 title claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 21
- 238000010276 construction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
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- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a flatness control device for processing a steel roof beam flange plate, which comprises a baffle plate with square frames arranged on the periphery and a flange plate vertically welded and connected with a web plate of an H-shaped steel roof beam and the end part of a flange plate. Square plate clips are arranged at two ends of the outer plane of the baffle, and machining bolt holes I matched with the four corners of the square frame are formed in the plane of each square plate clip; a plurality of processing bolt holes II which are matched with the flange plate and are arranged in parallel are arranged on the plane of the baffle plate; 16 stiffening plates with triangular structures are arranged on the plane of the baffle; a rib plate is arranged on a plane between the flange plate and the web plate; two ends of the flange plate are respectively provided with a tightening frame. The invention also discloses the control method. The flatness control method has the advantages of good flatness control effect on the processed steel roof beam flange plate, safety, reliability, convenience in operation and high construction efficiency, is particularly higher in application efficiency in the batch roof beam flange plate construction, and can be popularized and applied to flatness control of the processed steel column bottom plate, rib plate and the like.
Description
Technical Field
The invention relates to the technical field of steel structure machining, in particular to a flatness control device and method for machining a steel roof beam flange plate.
Background
At present, in the construction of a flange plate of a steel structure roof beam node, a pre-splicing scribing line is positioned, a square clamping wedge is adopted to clamp and fix a matching plate and the periphery of the flange plate locally, the flange plate is welded, and the method is used for preventing the flange plate from being welded to generate larger deformation (flatness control of the flange plate). However, this method has the following disadvantages that are difficult to overcome: the periphery of the flange plate is locally clamped and fixed, the periphery of the flange plate is stressed unevenly, welding stress is released from the periphery and is influenced greatly, the deformation of the periphery of the flange plate after welding is large, particularly the deformation of the middle part of the flange plate is large, the deviation value generating flatness is overlarge, the deviation of the joint rate of the friction surfaces of the two flange plates is large, the joint rate cannot meet the design and standard (the joint rate is 75%), a large amount of time is spent on each roof truss beam flange plate, the correction is repeated for many times, the whole operation process is time-consuming and labor-consuming, and the process is complicated. Particularly, the thick plate flange plate for the large steel roof beam node has large flatness deviation value caused by welding deformation, is very difficult to correct, and the flatness deviation of the part forming a frame structure with a ribbed slab cannot be corrected to meet the standard requirement.
Disclosure of Invention
The invention aims to solve the technical problem of providing the flatness control device for machining the steel roof beam flange plate, which is simple to operate, safe and stable and good in control effect.
The invention aims to solve another technical problem of providing the flatness control method for processing the steel roof girder flange plate.
In order to solve the problems, the flatness control device for processing the steel roof beam flange plate is characterized in that: the device comprises a baffle plate and a flange plate, wherein the periphery of the baffle plate is provided with a square frame, and the flange plate is vertically welded and connected with the web plate of the H-shaped steel roof beam and the end part of the flange plate; square plate clips are arranged at two ends of the outer plane of the baffle, and machining bolt holes I matched with the four corners of the square frame are formed in the plane of each square plate clip; a plurality of processing bolt holes II which are matched with the flange plate and are arranged in parallel are arranged on the plane of the baffle plate; 16 stiffening plates with triangular structures are arranged on the plane of the baffle; a rib plate is arranged on a plane between the flange plate and the web plate; and two ends of the flange plate are respectively provided with a jacking frame.
The square board card with square frame passes through fastening bolt I warp processing bolt hole I is connected fixedly.
The baffle plate and the flange plate are connected and fastened in parallel through the processing bolt holes II through the fastening bolts II which are arranged in a triangular structure.
The jacking frame comprises a jacking plate, a concave plate connected with the flange plate, a base plate attached to the flange plate and a support arranged on the operating platform or the ground; the upper middle part of one side of the tightening plate is provided with a tightening rod, and the middle part is provided with an inclined strut; the pad plate is provided with the concave plate, and the contact surface of the concave plate and the pad plate is provided with a buffer groove; the other ends of the tightening rod and the inclined strut are welded in the middle of one side of the concave plate; horizontal supports are vertically and symmetrically welded on the other side of the concave plate; the support is arranged at the bottom end of the concave plate.
And a base plate is arranged between the buffer groove and the flange plate.
The concave plate is connected with the flange plate through a fixing bolt.
The flatness control method for processing the steel roof beam flange plate comprises the following steps:
the method comprises the steps of forming welding grooves on the end surfaces of a web plate and a flange plate of a node part of the pre-assembled H steel roof beam, and vertically positioning, clinging to and spot-welding the end surfaces of the web plate and the flange plate with the plane of the flange plate;
the four corners on the plane of the baffle are respectively provided with a bolt hole I, and the bolt holes I are fixedly connected with a square frame on the baffle through fastening bolts I;
the plane of the baffle is provided with six processing bolt holes with the same size as the bolt holes of the flange plate, the processing bolt holes are horizontally distributed in two rows, two bolts at two ends are symmetrically arranged in a vertical row and a horizontal row, and four bolts are arranged on the plane of the baffle from the parallel lines in the vertical and left-right inclined directions and are arranged in a triangular stable structure;
placing tightly-pushing frames on two end faces of the flange plate respectively;
fifthly, enabling the plane of the jacking plate of the jacking frame to be in parallel and tightly attached to the plane of the flange plate, pre-fastening the fastening bolt I, and pre-fastening the fastening bolt II;
sixthly, vertically placing the support on a steel plate operating platform or on a hardened and flat ground, enabling the support to be in parallel and close contact with the end surfaces of the concave plate and the base plate, enabling the support to support the abutting frame, enabling the plane of the concave plate and the plane of the base plate to be in parallel and close contact with the plane of the left flange plate, and enabling the plane of the concave plate and the plane of the base plate to be in parallel and close contact with the plane of the right flange plate;
fastening the fastening bolt I from the middle to two sides, fastening the fastening bolt I from opposite corners, and finally fastening the fixing bolt;
welding rib plates in a positioning mode, performing vertical connecting weld joint welding of a flange plate and a web plate, performing connecting welding of the flange plate and a flange plate, and finishing welding of the flange plate, the web plate and the connecting weld joint of the flange plate;
after the components such as the self-lifting tooth are completely cooled, the jacking frame and the square plate clamp are disassembled, rib plate welding is carried out on two ends of the flange plate, and after the flange plate is completely cooled, the baffle is disassembled.
Compared with the prior art, the invention has the following advantages:
1. the invention skillfully forms a stable structural force system by applying a triangular structure stability principle and a jacking thrust principle and the acting force of an H-shaped steel roof beam node flange plate and a rib plate, develops a flatness control device for processing the steel roof beam flange plate, releases the stress generated by the flange plate in the welding process from the periphery and a buffer groove of the flange plate, ensures that the flange plate is stressed uniformly and quickly released, has balanced heat dissipation, and reduces the application concentration generated in the welding process.
2. The invention controls the construction welding deformation of the steel roof beam node flange plate through the baffle plate, the square plate clamp, the jacking frame, the flange plate and the like, has better control effect on the flatness of the friction surface of the welded flange plate, and realizes qualified one-time construction of the joint rate of the friction surfaces between the flange plates in practical application.
3. The method is safe and reliable, convenient to operate and high in construction efficiency, is particularly higher in application efficiency in the construction of the flange plates of the roof girders in batches, and can be popularized and applied to the flatness control of processing steel column bottom plates, rib plates and the like.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the baffle of the present invention.
Fig. 3 is a schematic structural view of the tightening frame of the present invention.
Fig. 4 is a schematic structural view of the flange plate of the present invention.
In the figure: 1. a baffle plate; 2. a square board card; 3. a tightening frame; 4. a flange plate; 51. machining a bolt hole I; 52. machining a bolt hole II; 61. fastening a bolt I; 62. fastening a bolt II; 7. a web; 8. a flange plate; 9. a square frame; 10. a stiffening plate; 11. a jacking plate; 12. a tightening rod; 13. a concave plate; 14. a buffer tank; 15. bracing; 16. horizontally supporting; 17. a rib plate; 18. a base plate; 19. fixing the bolt; 20. and (4) a support.
Detailed Description
As shown in figures 1-4, the flatness control device for processing the flange plate of the steel roof beam comprises a baffle plate 1 with square frames 9 arranged on the periphery and a flange plate 4 which is vertically welded with the web plate 7 of the H-shaped steel roof beam and the end part of a flange plate 8.
The two ends of the outer plane of the baffle plate 1 are provided with square plate clamps 2, and the plane of each square plate clamp 2 is provided with processing bolt holes I51 matched with the four corners of the square frame 9; a plurality of parallel processing bolt holes II 52 matched with the flange plate 4 are arranged on the plane of the baffle plate 1; 16 stiffening plates 10 with triangular structures are arranged on the plane of the baffle 1 to form a triangular structure stabilizing system; a ribbed plate 17 is arranged on the plane between the flange plate 4 and the web plate 7; two ends of the flange plate 4 are respectively provided with a tightening frame 3.
The square plate clamp 2 and the square frame 9 are fixedly connected through a fastening bolt I61 through a processing bolt hole I51.
The baffle plate 1 and the flange plate 4 are connected in parallel and fastened through a processing bolt hole II 52 by a fastening bolt II 62 which is arranged in a triangular structure. The positions of the fastening bolts II 62 are provided with mutually triangular vertexes to form a triangular stable structure.
The jacking frame 3 comprises a jacking plate 11, a concave plate 13 connected with the flange plate 8, a base plate 18 attached with the flange plate 8 and a support 20 arranged on the operating platform or the ground; the upper middle part of one side of the tightening plate 11 is provided with a tightening rod 12, and the middle part is provided with an inclined strut 15; the backing plate 18 is provided with a concave plate 13, the surface of the concave plate 13, which is opposite to the backing plate 18, is provided with a buffer groove 14, and the buffer groove 14 has the function of buffering force and the balance of the adjusting force. The other ends of the tightening rod 12 and the inclined strut 15 are welded in the middle of one side of the concave plate 13; horizontal braces 16 are vertically and symmetrically welded on the other side of the concave plate 13; the lower end of the concave plate 13 is provided with a seat 20.
A shim plate 18 is arranged between the buffer groove 14 and the flange plate 8.
The concave plate 13 is connected to the flange plate 8 by fixing bolts 19.
The flatness control method for machining the steel roof beam flange plate comprises the following steps:
the method comprises the steps of forming welding grooves on the end surfaces of a web plate 7 and a flange plate 8 at a node part of the pre-assembled H steel roof girder, and vertically positioning, clinging to and spot-welding the end surfaces of the web plate and the flange plate 4;
the four corners on the plane of the baffle plate 1 are respectively provided with a bolt hole I51 and are fixedly connected with the square frame 9 on the baffle plate 1 through a fastening bolt I61;
the six processing bolt holes with the same size as the flange plate bolt holes are formed in the plane of the baffle plate 1, the two processing bolt holes are horizontally distributed in two rows, the two bolts at the two ends are symmetrically arranged in the vertical and horizontal rows, and the four bolts in the plane of the baffle plate 1 are arranged on parallel lines in the vertical and horizontal inclined directions (the position where the flange plate is easy to deform) and are arranged in a triangular stable structure;
placing tightening frames 3 on two end faces of the flange plate respectively;
fifthly, closely attaching the plane of the jacking plate 11 of the jacking frame 3 to the plane of the flange plate 4 in parallel, pre-fastening the fastening bolt I61, and pre-fastening the fastening bolt II 62;
sixthly, vertically placing a support 20 on a steel plate operating platform or on the hardened and flat ground, and enabling the support 20 to be closely attached to the end surfaces of a concave plate 13 and a base plate 18 in parallel, wherein the support 20 supports a jacking frame 3, the planes of the concave plate 13 and the base plate 18 are closely attached to the plane of a left flange plate 8 in parallel, and the planes of the concave plate 13 and the base plate 18 are closely attached to the plane of a right flange plate 8 in parallel;
after the components such as the self-lifting are completely cooled, the jacking frame 3 and the square plate clamp 2 are disassembled, then rib plates 17 at two ends of the flange plate 4 are welded, and after the flange plate is completely cooled, the baffle plate 1 is disassembled.
Claims (7)
1. The utility model provides a roughness controlling means for processing steel roof beam flange board which characterized in that: the device comprises a baffle plate (1) with square frames (9) arranged on the periphery and a flange plate (4) which is vertically welded and connected with the web plate (7) and the end part of a flange plate (8) of the H-shaped steel roof beam; square plate clips (2) are arranged at two ends of the outer plane of the baffle (1), and machining bolt holes I (51) matched with the four corners of the square frame (9) are formed in the plane of each square plate clip (2); a plurality of parallel processing bolt holes II (52) matched with the flange plate (4) are arranged on the plane of the baffle plate (1); 16 stiffening plates (10) with triangular structures are arranged on the plane of the baffle (1); a rib plate (17) is arranged on a plane between the flange plate (4) and the web plate (7); and two ends of the flange plate (4) are respectively provided with a tightening frame (3).
2. A flatness control apparatus for processing a steel roof girder flange plate according to claim 1, wherein: the square board card (2) with square frame (9) pass through fastening bolt I (61) warp processing bolt hole I (51) are connected fixedly.
3. A flatness control apparatus for processing a steel roof girder flange plate according to claim 1, wherein: the baffle plate (1) and the flange plate (4) are connected and fastened in parallel through the processing bolt hole II (52) through a fastening bolt II (62) which is arranged in a triangular structure.
4. A flatness control apparatus for processing a steel roof girder flange plate according to claim 1, wherein: the jacking frame (3) comprises a jacking plate (11), a concave plate (13) connected with the flange plate (8), a base plate (18) attached to the flange plate (8) and a support (20) arranged on the operating platform or the ground; the upper middle part of one side of the tightening plate (11) is provided with a tightening rod (12), and the middle part is provided with an inclined strut (15); the backing plate (18) is provided with the concave plate (13), and the facing surface of the concave plate (13) and the backing plate (18) is provided with a buffer groove (14); the other ends of the tightening rod (12) and the inclined strut (15) are welded in the middle of one side of the concave plate (13); horizontal supports (16) are vertically and symmetrically welded on the other side of the concave plate (13); the bottom end of the concave plate (13) is provided with the support (20).
5. A flatness control apparatus for processing steel roof beam flange plates according to claim 4, characterized in that: and a cushion plate (18) is arranged between the buffer groove (14) and the flange plate (8).
6. A flatness control apparatus for processing steel roof beam flange plates according to claim 4, characterized in that: the concave plate (13) is connected with the flange plate (8) through a fixing bolt (19).
7. A flatness control method for processing a steel roof beam flange plate comprises the following steps:
the method comprises the steps of forming welding grooves on end faces of a web plate (7) and a flange plate (8) at a node part of a pre-assembled H steel roof beam, and vertically positioning, clinging to a plane of a flange plate (4) and performing spot welding;
the four corners of the plane of the baffle plate (1) are respectively provided with a bolt hole I (51) which is fixedly connected with a square frame (9) on the baffle plate (1) through a fastening bolt I (61);
the six processing bolt holes with the same size as the flange plate bolt holes are formed in the plane of the baffle plate (1), the two processing bolt holes are horizontally distributed in two rows, the two bolts at the two ends are symmetrically arranged in a longitudinal row and a transverse row, four bolts are arranged on the plane of the baffle plate (1) from the parallel lines in the vertical and horizontal inclined directions and are arranged in a triangular stable structure;
placing tightening frames (3) on two end faces of the flange plate respectively;
fifthly, enabling the plane of the jacking plate (11) of the jacking frame (3) to be in parallel and close to the plane of the flange plate (4), pre-fastening a fastening bolt I (61), and pre-fastening a fastening bolt II (62);
sixthly, vertically placing a support (20) on a steel plate operating platform or on the hardened and flat ground, and enabling the support (20) to be closely attached to the end surfaces of a concave plate (13) and a backing plate (18) in parallel, wherein the support (20) supports a jacking frame (3), the planes of the concave plate (13) and the backing plate (18) are closely attached to the plane of a left flange plate (8) in parallel, and the planes of the concave plate (13) and the backing plate (18) are closely attached to the plane of a right flange plate (8) in parallel;
fastening bolts II (62) from the middle to the two sides, then fastening the fastening bolts I (61) diagonally, and finally fastening the fixing bolts (19);
rib plates (17) are welded in a positioning mode, the flange plate (4) and the web plate (7) are welded in a vertical connecting welding seam mode, the flange plate (4) and the flange plate (8) are welded in a connecting mode, and the flange plate (4), the web plate (7) and the flange plate (8) are welded completely in the connecting welding seam mode;
after the components such as the self-lifting are completely cooled, the jacking frame (3) and the square plate clamp (2) are disassembled, rib plates (17) at two ends of the flange plate (4) are welded, and after the flange plate is completely cooled, the baffle (1) is disassembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167383.4A CN111660022B (en) | 2019-03-06 | 2019-03-06 | Flatness control device and method for processing steel roof beam flange plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167383.4A CN111660022B (en) | 2019-03-06 | 2019-03-06 | Flatness control device and method for processing steel roof beam flange plate |
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| Publication Number | Publication Date |
|---|---|
| CN111660022A true CN111660022A (en) | 2020-09-15 |
| CN111660022B CN111660022B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910167383.4A Active CN111660022B (en) | 2019-03-06 | 2019-03-06 | Flatness control device and method for processing steel roof beam flange plate |
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| CN (1) | CN111660022B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605547A (en) * | 2020-12-28 | 2021-04-06 | 上海振华重工(集团)股份有限公司南通分公司 | Method for mounting flange plate of lifting support of tire crane saddle beam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535478A (en) * | 2011-12-30 | 2012-07-04 | 北京工业大学 | Enclosing purlin comprising square steel pipe and light concrete for supporting foundation pit |
| DE102014107896A1 (en) * | 2014-06-04 | 2015-12-17 | Benteler Automobiltechnik Gmbh | Gland plate for connecting a torsion beam axle to a wheel bearing |
| CN106141752A (en) * | 2016-08-26 | 2016-11-23 | 天津卡达克汽车高新技术公司 | A kind of frock of shaped piece |
| CN107447861A (en) * | 2017-09-09 | 2017-12-08 | 北京工业大学 | A kind of assembling type steel structure square tube post beam column node connection device with diagonal brace |
| CN108590147A (en) * | 2018-06-08 | 2018-09-28 | 宁波建工工程集团有限公司 | Assembling the shaped steel suspension scaffolding and its construction method |
| CN209969893U (en) * | 2019-03-06 | 2020-01-21 | 金川集团工程建设有限公司 | Flatness control device for machining steel roof beam flange plate |
-
2019
- 2019-03-06 CN CN201910167383.4A patent/CN111660022B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535478A (en) * | 2011-12-30 | 2012-07-04 | 北京工业大学 | Enclosing purlin comprising square steel pipe and light concrete for supporting foundation pit |
| DE102014107896A1 (en) * | 2014-06-04 | 2015-12-17 | Benteler Automobiltechnik Gmbh | Gland plate for connecting a torsion beam axle to a wheel bearing |
| CN106141752A (en) * | 2016-08-26 | 2016-11-23 | 天津卡达克汽车高新技术公司 | A kind of frock of shaped piece |
| CN107447861A (en) * | 2017-09-09 | 2017-12-08 | 北京工业大学 | A kind of assembling type steel structure square tube post beam column node connection device with diagonal brace |
| CN108590147A (en) * | 2018-06-08 | 2018-09-28 | 宁波建工工程集团有限公司 | Assembling the shaped steel suspension scaffolding and its construction method |
| CN209969893U (en) * | 2019-03-06 | 2020-01-21 | 金川集团工程建设有限公司 | Flatness control device for machining steel roof beam flange plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605547A (en) * | 2020-12-28 | 2021-04-06 | 上海振华重工(集团)股份有限公司南通分公司 | Method for mounting flange plate of lifting support of tire crane saddle beam |
| CN112605547B (en) * | 2020-12-28 | 2022-03-22 | 上海振华重工(集团)股份有限公司南通分公司 | Method for mounting flange plate of lifting support of tire crane saddle beam |
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| CN111660022B (en) | 2024-09-10 |
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