CN104551555A - Method for processing intersecting hole under larger minus tolerance of individual truss web member - Google Patents
Method for processing intersecting hole under larger minus tolerance of individual truss web member Download PDFInfo
- Publication number
- CN104551555A CN104551555A CN201410684822.6A CN201410684822A CN104551555A CN 104551555 A CN104551555 A CN 104551555A CN 201410684822 A CN201410684822 A CN 201410684822A CN 104551555 A CN104551555 A CN 104551555A
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- CN
- China
- Prior art keywords
- standard
- processed
- rod member
- datum hole
- truss web
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2451—Connections between closed section profiles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a method for processing an intersecting hole under larger minus tolerance of an individual truss web member. According to the method, an orifice edge profile curve of a reference hole formed in a reference piece is utilized as a locating basis for an intersecting line of the intersecting hole i.e., the position and the direction of the intersecting hole in the periphery of a to-be-processed rod piece are located by virtue of the orifice edge profile curve of the reference hole, so that the to-be-cut end of the to-be-processed rod piece is directly cut off in a space truss construction site, not only can a needed pipe orifice be processed in the to-be-processed rod piece, but also rod piece raw materials are not needed to be purchased again, subjected to re-lofting processing in a factory and then conveyed to the site, therefore the correction operation difficulty of the to-be-processed rod piece is reduced, the correction efficiency of the to-be-processed rod piece in the construction site is improved, and the construction period of the whole space truss is shortened.
Description
Technical field
The present invention relates to the processing method of intersecting mouth under the larger minus tolerance of a kind of indivedual truss web.
Background technology
At present, because of topology requirement and architectural appearance aesthetic, large-scale shared building is caused mostly to have the space pipe truss structure of the advantages such as lightweight, rigidity is large, Stability Analysis of Structures, shock resistance are good, especially, in recent years, space pipe truss structure AT STATION, airport, stadium etc. be widely used in place.Space truss as shown in Figure 1, by arc jack truss 1, hyperbolic main arch 2 and such as lattice support column, primary and secondary strut, other jack truss etc. are assembled to be welded, as shown in Figure 2, by the two string soffit of girder bars 11 be arranged in parallel and bridge joint, the diagonal brace web member 12 between two string soffit of girder bars is formed the arc jack truss 1 of space truss, the two ends mouth of pipe of string soffit of girder bar 11 and diagonal brace web member 12 is the intersecting mouth be welded on the corresponding face of cylinder, because in space truss, the structure of string beam is different everywhere, so that the profile of each intersecting mouth is also intricate, make the intersecting mouth processing very inconvenience of truss web thereupon.
Truss web is processed according to design drawing manufacture usually in workshop, then directly carries out welding at the construction field (site).But in Practical Project construction, by mismachining tolerance, construction cumulative errors, there is the factor impacts such as distortion in transport and handling, there is relatively large deviation and cannot normal mounting in the length dimension of minority truss web, as shown in Figure 3, design rod member 21 is longer than the length of actual straight rod member 22, and compare actual knee part 23, design rod member 21 not only length or length or short, and degree of crook also reaches less than requiring, but these actual rod members are in non-key position, required precision is not high, caliber is less and on-the-spot processing can meet design and construction requirement, carry out relaying sample processing if again prepared burden in the factory, not only can extend the construction period of whole space truss, delay the duration, and setting-out processing can make the design cost of truss web and manufacturing cost increase again, the overall cost of space truss is made to increase, also lose more than gain economically.
Summary of the invention
The object of this invention is to provide the processing method of intersecting mouth under the larger minus tolerance of a kind of indivedual truss web, the problem that when being intended to solve truss web length dimension correction in prior art, intersecting mouth difficulty of processing is large.
In order to realize above object, in the present invention, under the larger minus tolerance of indivedual truss web, the technical scheme of the processing method of intersecting mouth is as follows:
The processing method of intersecting mouth under the larger minus tolerance of indivedual truss web, comprises the following steps:
Step one, chooses the to be processed rod member corresponding with required truss web, and prefabricated standard, standard offers the datum hole that edge, aperture contour curve is identical with the intersection of required intersecting mouth;
By rod member to be processed, step 2, treats that excision end passes from the datum hole of standard, and the wall surface of the hole of the outer peripheral face of rod member to be processed and datum hole is coincide coordinate;
Step 3, excises the setting-out of holding the edge, aperture along datum hole to excise or to extend along the edge, aperture along datum hole that rod member periphery to be processed marks of waiting to excise of rod member to be processed.
Standard is papery or metal forming material.
In step one rod member to be processed when the port excising end is identical with the shape of required intersecting mouth, by rod member to be processed, the datum hole on standard treats that excision holds punch process vertically to form.
Step standard being offered datum hole is as follows:
1), standard is attached on the port treating excision end of rod member to be processed, and is close to after on the ring end face of excision end on the surface of standard, standard position and shape are fixed;
2), for instrument in the side of standard rod member to be processed dorsad along waiting that the port edges excising end knocks standard, until on standard with the partial exfoliation waited to excise the ring end face held and be affixed, the hole exposed after coming off is described datum hole.
Edge, the aperture contour curve of the datum hole on standard is drawn on standard by computer and goes out.
The curve that standard is drawn is the evolute of edge, aperture contour curve, after completing, then standard is rolled into columnar body, makes the endoporus of body form datum hole to make the end to end of the evolute on standard.
Standard is the body on the periphery for being sleeved on rod member to be processed, and the internal face of body and the internal face of rod member to be processed coincide and be affixed.
Between step 2, three for chalk or marker pen on the periphery of rod member to be processed along edge, the aperture profile setting-out of datum hole, after completing, standard is removed from rod member to be processed.
In step 3, to be excised from rod member to be processed by the burning torch of device for thermally cutting and treat excision end, with rear overhang angle grinding machine and/or steel brush, the fracture end face that rod member to be processed excises is cleaned.
Be used as the positioning datum of the intersection of intersecting mouth by edge, the aperture contour curve of the datum hole that standard is offered in the present invention, namely the position of intersecting mouth on rod member periphery to be processed and trend is located by edge, the aperture contour curve of this datum hole, so that in space truss job site directly by rod member to be processed treat excision end-grain cutting fall, the mouth of pipe of needs so not only can be processed on rod member to be processed, and without the need to again buy rod member raw material in the factory again setting-out processing after be transported to scene again, thus decrease the difficulty of rod member correction operation to be processed, improve the correction efficiency of job site rod member to be processed, shorten the construction period of whole space truss.
Further, when the port until excision end of rod member to be processed is identical with the shape of required intersecting mouth, by rod member to be processed, datum hole treats that excision holds punch process vertically to form, intersecting mouth on datum hole like this on standard and rod member to be processed can be processed by acted as reference mutual, simplify the procedure of processing of datum hole on standard, improve manufacture efficiency and the machining accuracy of standard, also improve the machining accuracy of intersecting mouth on rod member to be processed and manufacture efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of space truss in prior art;
Fig. 2 is the structural representation of Fig. 1 string beam;
Fig. 3 is the comparison structure schematic diagram designing rod member and actual rod member in prior art.
Detailed description of the invention
The embodiment 1 of the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web in the present invention: under the larger minus tolerance of this indivedual truss web, the processing method of intersecting mouth is the heavy processing method under the larger minus tolerance of a kind of indivedual truss web, comprises the following steps:
1, consult the parameters such as design drawing Central Plains design rod member material, pipe outer wall, wall thickness, centre-to-centre spacing, rod member be the longest, choose the rod member of appropriate length;
2, the port at the two ends of design rod member adheres to the standard of thinner paper-board material or copy paper material, and the surface of standard is close on the ring end face of design rod member, and is fixed the position of standard and shape;
3, the port edges designing edge, the side design rod member of rod member with hammer class instrument at standard dorsad knocks, until the partial exfoliation that standard is affixed with design rod member, contact portion impact extrusion on standard is got off by the port namely designing rod member, and the hole that standard exposes is the datum hole that edge, aperture contour curve is identical with the intersection of required intersecting mouth;
4, treat that by first of rod member to be processed excision end passes from the datum hole of standard, the outer peripheral face of rod member to be processed and the wall surface of the hole of datum hole are coincide and coordinates;
5, on the periphery of rod member to be processed with chalk or marking pen along edge, the aperture setting-out of datum hole, after completing, standard is removed from rod member to be processed;
6, wait that by first of rod member to be processed the burning torch excising end device for thermally cutting excises from rod member to be processed;
7, repeat the step of above 4-6, to rod member to be processed second treats that excision end is cut;
8, with rear overhang angle grinding machine and steel brush, polishing cleaning is carried out to the fracture end face that rod member to be processed excises.
The embodiment 2 of the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web in the present invention: the difference of the present embodiment and embodiment 1 is, when there is the intersecting mouth mistake of actual rod member if on-the-spot, then can not directly according to existing design rod member intersecting mouth again machining need rod member to be processed, now step 2, datum hole in 3 on standard needs technical staff to girder three-dimensional model sampling, the intersection of intersecting mouth is drawn out in computer aided design software, and accurately on standard, draw intersection according to intersection size after setting-out in a computer, this intersection is the evolute of edge, aperture contour curve, subsequently standard rolled into columnar body and make intersection end to end, and in step 4,7, setting-out being carried out in the periphery that standard is directly sleeved on rod member to be processed, the internal face of body and the internal face of rod member to be processed coincide and are affixed.
In the above-described embodiments, standard is thin plate or the scraps of paper at the position to be cut being sleeved on rod member to be processed, datum hole on standard is made by design rod member punch process or computer-assisted mapping, in other embodiments, standard also can be steel pipe, steel loop etc., and now standard directly can cut from the port of the design rod member compared with Large Diameter Pipeline and obtain; Standard also can adopt metal forming material simultaneously.
In the above-described embodiments, rod member to be processed needs edge, the aperture setting-out of benchmark part before cutting, in other embodiments, can save setting-out step, and after being put in place by standard suit, directly cut rod member to be processed along the edge, aperture of the datum hole of standard with cutting tool.
From other embodiments above, under the larger minus tolerance of indivedual truss web of the present invention, the processing method of intersecting mouth is implemented by following steps:
Step one, chooses the to be processed rod member corresponding with required truss web, and prefabricated standard, standard offers the datum hole that edge, aperture contour curve is identical with the intersection of required intersecting mouth;
By rod member to be processed, step 2, treats that excision end passes from the datum hole of standard, and the wall surface of the hole of the outer peripheral face of rod member to be processed and datum hole is coincide coordinate;
Step 3, excises the setting-out of holding the edge, aperture along datum hole to excise or to extend along the edge, aperture along datum hole that rod member periphery to be processed marks of waiting to excise of rod member to be processed.
Claims (9)
1. the processing method of intersecting mouth under a larger minus tolerance of other truss web, is characterized in that, comprise the following steps:
Step one, chooses the to be processed rod member corresponding with required truss web, and prefabricated standard, standard offers the datum hole that edge, aperture contour curve is identical with the intersection of required intersecting mouth;
By rod member to be processed, step 2, treats that excision end passes from the datum hole of standard, and the wall surface of the hole of the outer peripheral face of rod member to be processed and datum hole is coincide coordinate;
Step 3, excises the setting-out of holding the edge, aperture along datum hole to excise or to extend along the edge, aperture along datum hole that rod member periphery to be processed marks of waiting to excise of rod member to be processed.
2. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web according to claim 1, it is characterized in that, standard is papery or metal forming material.
3. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web according to claim 2, it is characterized in that, in step one rod member to be processed when the port excising end is identical with the shape of required intersecting mouth, by rod member to be processed, the datum hole on standard treats that excision holds punch process vertically to form.
4. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web according to claim 3, it is characterized in that, step standard being offered datum hole is as follows:
1), standard is attached on the port treating excision end of rod member to be processed, and is close to after on the ring end face of excision end on the surface of standard, standard position and shape are fixed;
2), for instrument in the side of standard rod member to be processed dorsad along waiting that the port edges excising end knocks standard, until on standard with the partial exfoliation waited to excise the ring end face held and be affixed, the hole exposed after coming off is described datum hole.
5. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web according to claim 2, it is characterized in that, edge, the aperture contour curve of the datum hole on standard is drawn on standard by computer and goes out.
6. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web stated according to claim 5, it is characterized in that, the curve that standard is drawn is the evolute of edge, aperture contour curve, after completing, again standard is rolled into columnar body, make to make the end to end of the evolute on standard the endoporus of body form datum hole.
7. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web as claimed in any of claims 1 to 6, it is characterized in that, standard is the body on the periphery for being sleeved on rod member to be processed, and the internal face of body and the internal face of rod member to be processed coincide and be affixed.
8. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web according to claim 1 or 6, it is characterized in that, between step 2, three for chalk or marker pen on the periphery of rod member to be processed along edge, the aperture profile setting-out of datum hole, after completing, standard is removed from rod member to be processed.
9. the processing method of intersecting mouth under the larger minus tolerance of indivedual truss web according to claim 1 or 6, it is characterized in that, in step 3, to be excised from rod member to be processed by the burning torch of device for thermally cutting and treat excision end, clean after the fracture end face that rod member to be processed excises being polished with rear overhang angle grinding machine and steel brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410684822.6A CN104551555B (en) | 2014-11-25 | 2014-11-25 | Method for processing intersecting hole under larger minus tolerance of individual truss web member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410684822.6A CN104551555B (en) | 2014-11-25 | 2014-11-25 | Method for processing intersecting hole under larger minus tolerance of individual truss web member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104551555A true CN104551555A (en) | 2015-04-29 |
| CN104551555B CN104551555B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410684822.6A Active CN104551555B (en) | 2014-11-25 | 2014-11-25 | Method for processing intersecting hole under larger minus tolerance of individual truss web member |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406231A (en) * | 2018-02-09 | 2018-08-17 | 常州新蓝天汇丰钢结构有限公司 | A kind of manufacture craft of green building steel truss |
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| CN101393447A (en) * | 2008-10-14 | 2009-03-25 | 浙江东南网架股份有限公司 | Technique for processing intersecting mouth of rectangular steel pipe |
| CN201338270Y (en) * | 2008-12-10 | 2009-11-04 | 永成煤电控股集团有限公司 | Three-way intersecting line pipe die at any angle |
| CN101961810A (en) * | 2009-07-24 | 2011-02-02 | 王正怡 | Construction method for manufacturing multi-pipe intersecting steel pipe component |
| CN102814808A (en) * | 2012-08-30 | 2012-12-12 | 大连连重石化科技有限公司 | Petroleum pipeline cutting belt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1523335A1 (en) * | 1987-11-23 | 1989-11-23 | Пензенский Политехнический Институт | Method of marking out intersection lines of tubes |
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2014
- 2014-11-25 CN CN201410684822.6A patent/CN104551555B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393447A (en) * | 2008-10-14 | 2009-03-25 | 浙江东南网架股份有限公司 | Technique for processing intersecting mouth of rectangular steel pipe |
| CN201338270Y (en) * | 2008-12-10 | 2009-11-04 | 永成煤电控股集团有限公司 | Three-way intersecting line pipe die at any angle |
| CN101961810A (en) * | 2009-07-24 | 2011-02-02 | 王正怡 | Construction method for manufacturing multi-pipe intersecting steel pipe component |
| CN102814808A (en) * | 2012-08-30 | 2012-12-12 | 大连连重石化科技有限公司 | Petroleum pipeline cutting belt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406231A (en) * | 2018-02-09 | 2018-08-17 | 常州新蓝天汇丰钢结构有限公司 | A kind of manufacture craft of green building steel truss |
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| CN104551555B (en) | 2017-01-18 |
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