CN109531062A - Uneven bending box-girder saw production method - Google Patents
Uneven bending box-girder saw production method Download PDFInfo
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- CN109531062A CN109531062A CN201811408181.6A CN201811408181A CN109531062A CN 109531062 A CN109531062 A CN 109531062A CN 201811408181 A CN201811408181 A CN 201811408181A CN 109531062 A CN109531062 A CN 109531062A
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- spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
- Ladders (AREA)
Abstract
The invention discloses a kind of uneven bending box-girder saw production method, arrangement and method for construction are as follows: 1. numerical control programming will be carried out after flange plate and web computer setting-out, by programming plasma cut blanking；2. stample fiber flange plate and web on roller bed；3. drawing out the projected outline of saw on tire plate and being divided into N equal part corresponding with stair at different levels；4. calculate the height difference of the opposite initial line of having marked time of each bisector, by height difference fashioned iron in every bisector welding positioner；5. the spot welding group bottom plate on each moulding bed；6. spot welding assembling web and flange plate on bottom plate；7. spot welding assembles top plate and carries out stairway step scribing line at different levels on flange plate and web；8., assembled using the spot welding for carrying out stair at different levels after numerical control programming blanking according to the expanded view of stairway steps at different levels；9. carrying out comprehensive welding；10. examining simultaneously coating.The present invention is assembled by simulating the spatial constructional dimensions of rotary-type steel ladder actual installation, substantially increases production precision, good forming effect.
Description
Technical field
The present invention relates to the manufacturing technology of building auxiliary facility, specially a kind of uneven bending box-girder saw production
Method.
Background technique
Rotary-type steel ladder belongs to stereo rotating structure, and positioning is space nodes, and most of spiral stairs are two at present
Side symmetrical structure, such structure are simple to manufacture, and consistent in terms of at low cost and stress load, building structure is also relatively stable
And safety.However spiral stairs, as decorative engineering, structure is complicated, and beautiful asymmetric stair are also the trend developed, such as big rotation
Irregular, the non-uniform bending steel beam with box shape spiral stairs of gyration, large scale, large span, although structure fabrication difficulty is more
Greatly, but it is more beautiful, it can further promote the appreciating of monolithic architecture structure and can guarantee the structural stability of stair.
Rotary-type steel stair is space bending structure type, and it is major bearing structures, assembly welding that terraced beam section, which is box,
When, the assembling and welding process of box-type member should be taken, if taking conventional fabrication techniques, not only long construction period, at high cost, welding deformation
Greatly, appearance molding is poor, and the internal partition of bending box-type member is assembled before web, leads to web assembly difficulty, and correct amount is big.
The spiral stairs of present invention applicant's unit production, rotated inside is elliptic curve, is marked time for the every step of guarantee equal,
Every step corresponding developed dimension of marking time is different from, and web expansion is highly non-uniform, is showed the abnormity changed greatly, need to accurately be determined
Each component in position is connected size, and complex manufacturing technology, control accuracy requirement is high, is difficult to control its morpheme size during fabrication, often
There are relatively large deviations with in-site installation size for workshop production.
Summary of the invention
In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to propose, a kind of assembled moulding bed is low, saves
Province's moulding bed material, construction safety, bending box beam blanking shape are accurate, welding piece is few, are unlikely to deform, the unevenness of stable structure
Even bending box-girder saw production method.
It is able to solve the uneven bending box-girder saw production method of above-mentioned technical problem, parts machining and existing
Field arrangement and method for construction are as follows:
1, according to each point coordinates of three-dimensional space of the ala lateralis listrium and interior coxostermum of bending box-girder each in drawing and
Irregular flange plate and web are carried out the laggard line number of part setting-out using computer by each point x, y coordinate of two-dimensional surface expansion
Control reduction obtains page layout program, by the digital control system of page layout program input plasma cutting machine, in plasma cutting machine
Blanking is carried out by the accurate cutting plate of programming.
2, the angle for determining flange plate or web and roller bed center line by saw angle of elevation on roller bed, by flange plate
Or the difference that web plane expanded view is respectively segmented is crimped processing by approximate radius.
3, according to drawing size, the horizontal projection profiles of saw are drawn out on horizontal tire plate using plane projection method,
And projected outline is divided into N equal part corresponding with stair at different levels.
4, the initial line that line of marking time determines saw is drawn in projected outline, calculates each bisector by design software
With respect to the height difference data for playing initial line, support frame is respectively set at the both ends of each bisector with fashioned iron according to each height difference data and incites somebody to action
It is welded on tire plate and completes building for left and right moulding bed.
5, on each moulding bed spot welding assembling bending box-girder bottom plate.
6, vertical spot welding assembling web and flange plate on the inside and outside edge of each bottom plate.
7, on the flange plate and web of each bottom plate spot welding assembling top plate and bending box-girder of being formed, with laser-projector pair
Each stairway step scribing line is carried out on each bending box-girder according to bisector.
8, the accurate blanking of numerical control programming is used according to the expanded view of stairway steps at different levels, and is carried out according to stair height at different levels
It crosses and uses bending machine flanging, then corresponding scribing line of respectively marking time carries out the spot welding assembling of stair at different levels.
9, comprehensive welding is carried out to whole group weldering positions.
10, simultaneously coating is examined.
Beneficial effects of the present invention:
1, the present invention is to be built on moulding bed by simulating the spatial constructional dimensions of saw actual installation, using one
Body assemble method improves production precision, good forming effect.
2, the uneven bending box-girder saw production method of the present invention models figure, CAD setting-out comparison inspection using computer
It looks into, key point calculates the means controlled and makes the dimensional accuracy of components very high.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of one embodiment of the present invention.
Fig. 2 is the construction drawing of Fig. 1 embodiment.
Fig. 3 is the machining sketch chart of flange plate or web in Fig. 1.
Figure number mark: 1, bending box-girder；2, flange plate；3, web；4, roller bed；5, support frame；6, bottom plate；7, stair platform
Rank；8, bisector；9, tire plate.
Specific embodiment
Illustrated embodiment is described further technical solution of the present invention with reference to the accompanying drawing.
The present invention relates to the production method to uneven bending box-girder saw, uneven bending box-girder saw
Structure as shown in Figure 1, its structure include the upward left and right bending box-girder 1 of rotation and setting left and right bending box-girder 1 it
Between multistage stairway step 7, each bending box-girder 1 includes web 3 and the edge of a wing of upper and lower top plate and bottom plate 6 and medial and lateral
Plate 2, stairway steps 7 at different levels are flanging into approximate 90 ° of plate body.
The production method of the uneven bending box-girder saw of the present invention, parts machining and site operation scheme are as follows:
1, according to each point coordinates of three-dimensional space of the ala lateralis listrium 2 and interior coxostermum 3 of bending box-girder 1 each in drawing with
And each point x, y coordinate of two-dimensional surface expansion, irregular flange plate 2 and web 3 is laggard using computer progress part setting-out
Line number control reduction obtains page layout program, by the digital control system of page layout program input plasma cutting machine, in plasma cut
Blanking is carried out by the accurate cutting plate of programming on machine；Plate leveling is carried out using level(l)ing machine before blanking, guarantees that part blanking is accurate.
2, the angle of flange plate 2 or web 3 and 4 center line of roller bed is determined by saw angle of elevation on roller bed 4
(90 ° of-∠ A), the difference being respectively segmented by flange plate 2 or 3 plane outspread drawing of web are crimped processing (as added by approximate radius
Work is at ellipse), as shown in Figure 3.
3, according to drawing size, the horizontal projection profiles of saw are drawn out on horizontal tire plate 9 using plane projection method,
And projected outline is divided into and (is divided by bisector 8) N equal part corresponding with stairway steps 7 at different levels, as shown in Figure 2.
4, the initial line that line of marking time determines saw is drawn in projected outline, calculates each bisector by design software
The 8 opposite height difference data for playing initial line, are respectively set support frame 5 at the both ends of every bisector with H profile steel according to each height difference data,
Check the height difference size of each support frame 5, it is ensured that the bearing height of each support frame 5 rotation height corresponding with erecting bed is consistent,
Each support frame 5 is welded on tire plate 9 after review and completes building for left and right moulding bed, as shown in Figure 2.
5, by moulding bed height and projected outline's adjustment positioning, spot welding assembles left and right bending box-girder 1 on left and right moulding bed
Bottom plate 6, as shown in Figure 2.
6, vertical spot welding assembling web 3 and flange plate 2 on the inside and outside edge of each bottom plate 6, to web 3 and the wing when assembling
The radian of listrium 2 carries out flame fine tuning, guarantees not only close to bottom plate, but also perpendicular to the ground, as shown in Figure 2.
7, on the flange plate 2 and web 3 of each bottom plate 6 spot welding assembling top plate and bending box-girder 1 of being formed, use laser projection
Instrument control bisector 8 carries out stairway steps 7 at different levels on left and right bending box-girder 1 and crosses, as shown in Figure 2.
8, the accurate blanking of numerical control programming is used according to the expanded view of stairway steps 7 at different levels, and high according to stairway steps 7 at different levels
Degree carries out scribing line and with bending machine flanging, and the spot welding for then corresponding to the scribing line of stairway step 7 progress at different levels stair 7 at different levels assembles, such as
Shown in Fig. 1.
9, comprehensive welding is carried out to whole group weldering positions, is first preheated before welding, when welding sets low current
Input, using the reversible deformations welding procedure such as multilayer multiple tracks, backstep sequence, symmetric method.
10, saw size and weldquality are checked by construction drawing after the completion of welding, removes moulding bed after qualified, it is most laggard
Row ball blast and the oily coating of brush.
Claims (1)
1. uneven bending box-girder saw production method, parts machining and site operation scheme are as follows:
1., according to the ala lateralis listrium (2) of bending box-girder (1) each in drawing and the three-dimensional space each point seat of interior coxostermum (3)
It is marked with and each point x, y coordinate of two-dimensional surface expansion, by irregular flange plate (2) and web (3) using computer progress part
The laggard line number control reduction of setting-out obtains page layout program, and the digital control system of page layout program input plasma cutting machine is waiting
Blanking is carried out by the accurate cutting plate of programming on ion cutting machine；
2., the folder of flange plate (2) or web (3) and roller bed (4) center line is determined on roller bed (4) by saw angle of elevation
Angle is crimped processing by approximate radius by the difference that flange plate (2) or web (3) plane outspread drawing are respectively segmented；
3., according to drawing size, the horizontal projection profiles of saw are drawn out on horizontal tire plate (9) using plane projection method,
And projected outline is divided into N equal part corresponding with stair at different levels (7)；
4., in projected outline draw mark time line determine saw rise initial line, calculate each bisector (8) by design software
The opposite height difference data for playing initial line, are respectively set support frame at the both ends of every bisector (8) with fashioned iron according to each height difference data
(5) it and is welded on tire plate (9) and completes building for left and right moulding bed；
5., on each moulding bed spot welding assembling bending box-girder (1) bottom plate (6)；
6., vertical spot welding assembling web (3) and flange plate (2) on the inside and outside edge of each bottom plate (6)；
7., on the flange plate (2) and web (3) of each bottom plate (6) spot welding assembling top plate and be formed bending box-girder (1), with swash
Light projector's control bisector (8) carries out stairway steps at different levels (7) scribing line on each bending box-girder (1)；
8., the accurate blanking of numerical control programming used according to the expanded view of stairway steps at different levels (7), and according to stairway steps at different levels (7)
Height cross and uses bending machine flanging, and the spot welding that then corresponding scribing line of respectively marking time carries out stair (7) at different levels assembles；
9., comprehensive welding is carried out to whole group weldering positions；
10., examine and coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408181.6A CN109531062B (en) | 2018-11-23 | 2018-11-23 | Method for manufacturing uneven bending box beam rotary ladder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408181.6A CN109531062B (en) | 2018-11-23 | 2018-11-23 | Method for manufacturing uneven bending box beam rotary ladder |
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| CN109531062A true CN109531062A (en) | 2019-03-29 |
| CN109531062B CN109531062B (en) | 2021-04-30 |
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| CN201811408181.6A Active CN109531062B (en) | 2018-11-23 | 2018-11-23 | Method for manufacturing uneven bending box beam rotary ladder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449834A (en) * | 2019-07-29 | 2019-11-15 | 中国一冶集团有限公司 | Bending box column production method |
| CN111119502A (en) * | 2019-12-30 | 2020-05-08 | 共享钢构有限责任公司 | Machining method of tool jig frame |
| CN112814295A (en) * | 2020-12-31 | 2021-05-18 | 中建钢构武汉有限公司 | Manufacturing method of prefabricated staircase beam section and prefabricated staircase section |
| CN113378262A (en) * | 2021-05-24 | 2021-09-10 | 中建钢构武汉有限公司 | Method and device for acquiring machining information of cranked component and storage medium |
| CN114406627A (en) * | 2022-03-10 | 2022-04-29 | 山东天元安装集团有限公司 | Manufacturing method of bent-twisted parallelogram box-shaped component |
| CN114700398A (en) * | 2022-03-04 | 2022-07-05 | 中国一冶集团有限公司 | Manufacturing method of large-size square-round reducer pipe |
| CN114818096A (en) * | 2022-06-30 | 2022-07-29 | 中国二十二冶集团有限公司 | Manufacturing method of rotary steel ladder of dust remover based on BIM technology |
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| US5720136A (en) * | 1996-01-26 | 1998-02-24 | Turner; Scott Alan | Modular staircase |
| CN103659182A (en) * | 2013-12-03 | 2014-03-26 | 中建钢构江苏有限公司 | Production method of 360-degree spiral stair with cambered box beams |
| CN106623529A (en) * | 2016-08-31 | 2017-05-10 | 浙江精工钢结构集团有限公司 | Solid-web large-section spiral stair box girder shaped like Chinese character ''mu'' and manufacturing method |
| CN107700769A (en) * | 2017-10-16 | 2018-02-16 | 中国冶集团有限公司 | A kind of assemble method of screw type steel ladder |
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2018
- 2018-11-23 CN CN201811408181.6A patent/CN109531062B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5720136A (en) * | 1996-01-26 | 1998-02-24 | Turner; Scott Alan | Modular staircase |
| CN103659182A (en) * | 2013-12-03 | 2014-03-26 | 中建钢构江苏有限公司 | Production method of 360-degree spiral stair with cambered box beams |
| CN106623529A (en) * | 2016-08-31 | 2017-05-10 | 浙江精工钢结构集团有限公司 | Solid-web large-section spiral stair box girder shaped like Chinese character ''mu'' and manufacturing method |
| CN107700769A (en) * | 2017-10-16 | 2018-02-16 | 中国冶集团有限公司 | A kind of assemble method of screw type steel ladder |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449834A (en) * | 2019-07-29 | 2019-11-15 | 中国一冶集团有限公司 | Bending box column production method |
| CN110449834B (en) * | 2019-07-29 | 2021-10-01 | 中国一冶集团有限公司 | Manufacturing method of bent box-type column |
| CN111119502A (en) * | 2019-12-30 | 2020-05-08 | 共享钢构有限责任公司 | Machining method of tool jig frame |
| CN112814295A (en) * | 2020-12-31 | 2021-05-18 | 中建钢构武汉有限公司 | Manufacturing method of prefabricated staircase beam section and prefabricated staircase section |
| CN113378262A (en) * | 2021-05-24 | 2021-09-10 | 中建钢构武汉有限公司 | Method and device for acquiring machining information of cranked component and storage medium |
| CN114700398A (en) * | 2022-03-04 | 2022-07-05 | 中国一冶集团有限公司 | Manufacturing method of large-size square-round reducer pipe |
| CN114406627A (en) * | 2022-03-10 | 2022-04-29 | 山东天元安装集团有限公司 | Manufacturing method of bent-twisted parallelogram box-shaped component |
| CN114818096A (en) * | 2022-06-30 | 2022-07-29 | 中国二十二冶集团有限公司 | Manufacturing method of rotary steel ladder of dust remover based on BIM technology |
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| CN109531062B (en) | 2021-04-30 |
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