CN101758372B - Method for forming mold for drilling high-strength bolt holes for coke dry quenching body frame structure - Google Patents

Method for forming mold for drilling high-strength bolt holes for coke dry quenching body frame structure Download PDF

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Publication number
CN101758372B
CN101758372B CN2009102731335A CN200910273133A CN101758372B CN 101758372 B CN101758372 B CN 101758372B CN 2009102731335 A CN2009102731335 A CN 2009102731335A CN 200910273133 A CN200910273133 A CN 200910273133A CN 101758372 B CN101758372 B CN 101758372B
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CN
China
Prior art keywords
drill jig
template
drilling
plate
hole
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CN2009102731335A
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Chinese (zh)
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CN101758372A (en
Inventor
王健
陈进中
姜良发
于茂发
束志华
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中国一冶集团有限公司
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Abstract

The invention relates to a method for forming a mold for drilling high-strength bolt holes for a coke dry quenching body frame structure, comprising the following concrete steps: manufacturing a plurality of positioning templates which comply with process precision requirement by using a milling and drilling machine according the characteristic of a coke dry quenching body frame, drilling holes in a centering way on the same nodes on connecting plates, H-shape steel flange plates and ventral plates, which need to be manufactured, with the mold by taking the positioning templates as the reference, and connecting the components of H-shape steel flange plates. The positioning templates which comply with process precision requirement can be manufactured with low cost, the holes drilled on the connecting plates and the component by the mold are totally same, the mold can be used by changing the side, the position and the head thereof and can be particularly used for drilling a large number of high-strength bolt holes on site, and a corresponding liner can be arranged on the mold to reduce the abrasion so that the set of mold can be used repeatedly.

Description

Method for forming mold for drilling high-strength bolt holes for coke dry quenching body frame structure
Technical field
The present invention relates to the dry coke quenching field, be specifically related to a kind of method for forming mold for drilling high-strength bolt holes for coke dry quenching body frame structure.
Background technology
Compare with traditional coke wet quenching, dry coke quenching has the waste that reduces water and effectively utilizes coke heat energy to reach 80%, can improve characteristics such as coke quality and production environment.It is big that the dry coke quenching engineering has the coke dry quenching body installation workload, and loose mail is many; Structure is high, and aspect is many, and the builder's yard is narrow and small, and quantities is concentrated, and interchange operation is frequent; It is many to relate to specialty, and installation quality requires characteristics such as height.Major part is that high-strength bolt connects in the connection procedure of coke dry quenching body frame; There is following undesirable element in high-strength bolt in connection procedure: one of which; The member connecting portion of this engineering is more, and its post, beam, bridging, secondary beam connected mode are that high-strength bolt connects, and hole crowd's quantity is many; Mostly component node is three-dimensional connection, and the control to the datum mark of member, line, face, angle in making and installing all exerts an influence to the punching rate of bolt; Its two, mostly framework is big member, the connection procedure of accomplishing high-strength bolt in the high-altitude is commonplace phenomenon, the high-altitude construction is had higher requirement to the punching rate of bolt.Therefore, how to guarantee that the degree of accuracy of bore size and then the installation effectiveness of raising strength bolt punching rate and frame structure then seem particularly important.
The forming hole method in dry coke quenching framework high-strength bolt hole has much at present, and mainly contain following several kinds: the brill method is joined at (1) connecting plate scene factually; (2) connect backhand welding earlier; (3) the structure manufacture assembled on site is joined the brill method.But these methods all exist too much not manageability of connecting plate and the complicated shortcoming of practical operation.
Summary of the invention
Technical problem to be solved by this invention is: providing a kind of is that benchmark carries out coke dry quenching body frame structure high-strength bolt forming method with a cover drill jig template; This method adopts common common equipment to produce to meet a cover drill jig template of precision; Be that benchmark carries out pore-forming to corresponding dry coke quenching structural member with this cover drill jig then; With assurance borehole accuracy, raising punching rate, and then improve installation effectiveness.
The present invention solves its technical problem and adopts following technical scheme:
Method for forming mold for drilling high-strength bolt holes for coke dry quenching body frame structure provided by the invention; Specifically: make the drill jig template that meets craft precision earlier; Again with this drill jig template as benchmark; Connecting plate, H shaped steel connecting elements flange plate and the web of making carried out centering boring on same node point, wear when avoiding connecting between several holes of same bolt and phenomenon occurs than big shearing.
This method comprises template construct, H Steel section member flange plate, web boring, and the Connection Step of H Steel section member.
1. the making of drill jig template:
1. the steel plate after the polishing is placed on the horizontal table of drilling and milling machine, after the adjustment level, fixes with depression bar;
2. after having bored first hole, horizontal when boring next hole, feeding handle, the number index dial number of turns of rotating longitudinally, the distance of coming to control to respectively horizontal and vertical adjacent holes, drilling pore-forming then through rotating;
3. after the drill jig pore-forming finishes corresponding lining and drill jig template are installed together, material or high hardness wear-resisting material that passing through property of lining You temper is strong are processed.Lining and drill jig template adopt interference fit, and the internal diameter wearing and tearing exceed 0.5mm and change later on.
2. the high-strength bolt hole of connecting plate makes:
1. with the steel plate of drill jig template and corresponding size according to the drill jig template last; Connecting plate under mode overlap; After the center line alignment of drill jig template and connecting plate it is clipped, and be placed on the drilling and milling machine horizontal operation platform, fix with depression bar after the adjustment level.
2. shake the feeding handle, carry out drilling after making drill bit extend into the hole of drill jig template.
3.H the high-strength bolt hole of Steel section member flange plate, web makes:
1. on the flange plate of H shaped steel and web, emit the vertical and horizontal control line corresponding respectively with the drill jig template;
2. the drill jig template is placed on the lateral surface of flange plate or web of H shaped steel; The vertical control line of drill jig template aligns with flange plate or the vertical control line of web outside face; The horizontal control line of drill jig template aligns with the horizontal control line of H shaped steel; The drill jig template is last, and flange plate or web clamp with flange plate or the web of anchor clamps with drill jig template and H shaped steel down.
3. after affirmation is errorless, aiming at the drill jig pattern hole with the hollow rig of magnetic support holes.
The present invention compared with prior art has following main advantage:
1. cost is low, and quality is high: utilize common driller to produce the satisfactory drill jig template of precision, and then take drill jig as the mode of template structural member to be carried out accurate pore-forming, with assurance borehole accuracy, raising punching rate, and then improve the installation effectiveness assurance duration.In a word, utilize this method can realize the high target of high-strength bolt hole disposable wearing porosity, the disposable wearing porosity reaches 99.3%, and quality can adopt Digit Control Machine Tool boring to compare favourably with prior art;
2. the scope of application is wide, workable: this method is applicable to that the steel plate of any specification almost, the hole processing and the steel construction boring of shaped steel connect; Be particularly useful for that this connected node of dry coke quenching engineering is many, number of bolt hole is many, and to the fabrication and processing of the demanding steel frame construction of bolt hole installation accuracy.The more important thing is that this method can reach in the workshop at the scene and apply in a flexible way, do not receive place and mechanical constraint.
3. easy to use: this method is directed against the problem of prior art existence and combines practical experience to sum up the high-strength bolt hole drill mould template that a cover is suitable for present stage dry coke quenching frame structure; All all are living through connecting plate and the hole on the member that the drill jig template comes outbreak out; Can anti-limit, transposition, tune can both use; Be particularly suitable for carrying out at the scene a large amount of high-strength bolt boring, thereby and reach the reusable effect of a cover drill jig through on drill jig, being equipped with the corresponding lining amount of reducing wear.
Description of drawings
Fig. 1 is that H shaped steel high-strength bolt connects sketch map.
Fig. 2 is a H shaped steel drill jig template match-drill sketch map.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is drill jig boring sketch map.
Fig. 5 is a drill jig lining sketch map.
Fig. 6 is the vertical view of Fig. 5.
Among the figure: 1.H shaped steel web; 2. connecting plate; 3. high-strength bolt hole; 4.H shaped steel flange plate; 5. drill jig template; 6. horizontal control line; 7. vertical control line; 8. datum hole; 9. drill jig lining.
The specific embodiment
The present invention relates to coke dry quenching body frame structure high-strength bolt hole drill mold forming method; Specifically: according to the characteristics of coke dry quenching body framework; Utilize drilling and milling machine to make the locating template that some covers meet craft precision; Again with this template as benchmark, connecting plate, H shaped steel flange plate and web that needs are made carry out centering boring on same node point.This method comprises the making of drill jig locating template, utilizes drill jig to carry out H Steel section member flange plate, web boring, and H Steel section member step of connecting and method.
Below in conjunction with embodiment and accompanying drawing the present invention is described further.
One. the making of drill jig template 5
Producing the drill jig template 5 (abbreviation template) that meets precision, is the prerequisite that postorder work is accomplished.
1. select to make the drilling machine of template:
Select drilling and milling machine as the drilling machine of making template, for example selecting model for use is the ZX50F drilling and milling machine, and this drilling and milling machine has following 3 advantages:
(1) the horizontal operation platform is arranged.The traverse feed axle center of workbench becomes the three-dimensional xyz coordinate system of going up with the length feed axle center with drill bit;
(2) precision is higher.Laterally, vertically the index dial minimum scale is 4 μ m, it is 100 lattice that rotating disk circles, walk 4mm then precision can be controlled within the 4 μ m;
(3) low price.One is about 10,000 yuan.And Digit Control Machine Tool is more than 200,000 yuan.
Drilling and milling machine with above three advantages all can be selected to be suitable for.
2. pattern hole center line:
Adopt the semi-automatic gas cutting machine oxygen-acetylene cutting behind the leveling of plates, the steel plate center line that rectify platband surface, draws.Vertically being placed on then and utilizing precision on the face plate is that 0.02 vernier height gauge is a datum line with the steel plate sideline, marks the center line in each hole one by one, and accomplishes fluently dotting punch with steel nail.
3. the boring of template:
Boring is one step of key of this technology.
(1) with the steel plate after the perforating being placed on the horizontal table of drilling and milling machine, fix with depression bar after the adjustment level.For raising the efficiency, steel plate of the same race can overlapping several, and height is advisable within 60mm.And with spot-welded together around the steel plate.
(2) after having bored first hole, when boring next hole, through rotate horizontal stroke, the feeding handle is counted the number of turns that index dial rotates longitudinally, the distance of coming to control to respectively horizontal and vertical adjacent holes, drilling gets final product then.Needn't all to repeat centering in hole of every brill, reduce cumulative errors greatly thereby reduced by two adjacent holes error in the heart.
Illustrate, as shown in Figure 4: when boring datum hole 8-1, the dotting punch of beating on the heart line is therein used as centering; Dotting punch aligns with bit central, bores datum hole 8-2 when having bored this Kong Houzai, and the horizontal relative distance of the hole heart of datum hole 8-1,8-2 is Xmm; Because the traverse feed rotating disk turns around, workbench traverse feed 4mm, so after having bored datum hole 8-1; Need to shake traverse feed handle X/4 circle, promptly arrived the position of datum hole 8-2 to datum hole 8-2 direction.Control crown height drilling datum hole 8-2 then.In like manner hole successively as stated above to datum hole 8-12 direction from datum hole 8-2; After having bored datum hole 8-12, begin to bore second row; Datum hole 8-12 and datum hole 8-13 hole heart relative distance are Ymm; Then need to shake the position that length feed handle Y/4 circle can arrive datum hole 8-13, control crown height then, drilling datum hole 8-13 to datum hole 8-13 direction.In like manner the 8-14 direction is bored second row, the 3rd row successively from datum hole 8-13 backward reference hole ... Up to all datum holes have all been bored.
Misremember the number of turns when preventing that the workman from shaking handle, cause the position of the hole heart that deviation takes place, the dotting punch of therefore accomplishing fluently with top step 2 is checked.Just in case misremember the number of turns, then bore whole the circle when drill bit and dotting punch are close, whether the physical location through observing drill bit and dotting punch centering, judges that how handle changes the few situation of commentaries on classics, makes corresponding adjustment then, makes drill bit and dotting punch centering.
This kind boring method makes that site error facts have proved between the adjacent holes within 4 μ m, the template that whole dry coke quenching steel structure is made with this kind method, on the same template arbitrarily between the hole site error within 24 μ m, meet the required precision of template.
(3) after the drill jig pore-forming finishes corresponding lining 9 (Fig. 5, Fig. 6) is installed on the drill jig, such once the cover long-lived drill jig made successfully.Material or high hardness wear-resisting material that lining 9 passing through property of You temper are strong are processed, totally three kinds of specifications, and internal diameter is respectively three kinds of 18mm, 22mm, 24mm, wall thickness 4mm, length equals the thickness of drill jig template 1.Lining 9 adopts interference fit with drill jig template 5, and the internal diameter wearing and tearing exceed 0.5mm and change later on.
Two. the high-strength bolt hole of connecting plate 2 makes (referring to Fig. 1, Fig. 2 and Fig. 3)
After the drill jig template construct came out, all connecting plates all used corresponding template to make as key well.Operating process is following:
With the steel plate of drill jig template 5 and corresponding size according to drill jig template 5 last; Connecting plate 2 under order overlap; After the center line alignment of drill jig template 5 and connecting plate 2 it is clipped, and be placed on the drilling and milling machine horizontal operation platform, fix with depression bar after the adjustment level.Among Fig. 1-Fig. 3,2-1 is the connecting plate of flange plate, and 2-2 is the connecting plate of H shaped steel web 1.
2. shake the feeding handle, make drill bit extend into the laggard capable drilling of respective mode plate hole.Because the template hole depth is 8~30mm, the workman is easy to control drill bit and takes pattern hole, easily to the heart, has reduced eccentric error, and the method for therefore making connecting plate with template boring is easy operating but also can guarantee the precision in hole not only.For improving drilling efficiency, can the several piece steel plate be piled up boring simultaneously, be no more than 50mm with gross thickness and be advisable.
The boring of three .H shaped steel webs 1 (abbreviation web) and H shaped steel flange plate 4 (abbreviation flange plate)
The boring of web and flange plate also is the method that adopts template boring.For reducing error, the connecting plate of same node point and respective members need to hole with same template.
1. select to carry out the drilling machine of flange plate and web connecting hole
Limited by the place because of mostly H shaped steel is big member; And flange plate and web boring position is special, though can satisfy the hole required precision with Digit Control Machine Tool boring, need set up member shipping platform support to be processed; Cooperate straddle truck to cooperate the carrying operation, the poor efficiency effort.Therefore select small and exquisite nimble magnetic support core drill for use.
For example select Japanese SANSO magnetic support core drill for use, this core drill has following characteristics:
(1) its efficient magnetic force drill bit is the very high alloy hollow boring bit of hardness; Adopt 3 kinds of combination sword structures; Cutting tip is divided into 3 sections, has not only reduced resistance to cutting and also prolonged service life and stronger compared with the adsorption capacity of common magnetic force drill bit magnetic support, the fuselage of magnetic drill press is more stable
(2) can conveniently move.
Magnetic force with above characteristics bores all can be selected to be suitable for.
2.H the high-strength bolt borehole jack mould of shaped steel flange plate 4, H shaped steel web 1 boring:
(1) on flange plate and web, emits the vertical and horizontal control line corresponding respectively with drill jig template 5.
(2) drill jig template 5 is placed on the lateral surface of H shaped steel flange plate 4 or H shaped steel web 1; The vertical control line 7 of drill jig template 1 aligns with the vertical control line of the lateral surface of said flange plate or web; The horizontal control line 6 of drill jig template 5 aligns with the horizontal control line of H shaped steel; Drill jig template 5 is last, and flange plate or web clamp drill jig template 5 and flange plate or web with anchor clamps down;
(3) after affirmation is errorless, aiming at drill jig template 5 holes with the hollow rig of magnetic support holes.
Among Fig. 1-Fig. 3, numbering 3-1 is high-strength bolt hole, flange plate place, and numbering 3-2 is high-strength bolt hole, web place.Numbering 5-1 is for making the template of flange plate, and numbering 5-2 is for making the template of web.
The connection of four .H shaped steel steel members
After drilling work was accomplished, the member connection was carried out by node successively.Wherein connecting plate 2 is that drill jig template 5 is through drilling and milling machine template boring gained.Because connecting plate and member to be connected are holed with same template centering; Improve the drilling precision greatly and reduced the pore-forming error; Wear when having avoided connecting between the several holes of same bolt and phenomenon occurs than big shearing; The connection surplus that 5mm is arranged in the middle of in addition during the butt joint of H Steel section member adds between high-strength bolt and the hole surplus (as shown in table 1) that 1.5~3mm is arranged for matched in clearance, has improved the punching rate of high-strength bolt effectively.
Subordinate list
Table 1 high-strength bolt diameter and aperture
High-strength bolt nominal diameter (mm) M12 M16 M20 M22 M24 M27 M30
High-strength bolt nominal diameter (mm) 13.5 17.5 22.0 24.0 26.0 30.0 33.0

Claims (3)

1. coke dry quenching body frame structure high-strength bolt hole drill mold forming method; It is characterized in that comprising the drill jig template construct; The step that H Steel section member flange plate, web and corresponding connecting plate are holed; Promptly utilize drilling and milling machine to make to meet some drill jig templates of craft precision earlier, again with this template as benchmark, connecting plate, H shaped steel flange plate and the web of needs boring carried out centering boring on same node point; Described method specifically may further comprise the steps:
(1) making of drill jig template:
1. the steel plate after the polishing is placed on the horizontal table of drilling and milling machine, after the adjustment level, fix with depression bar,
2. after having bored first hole, horizontal when boring next hole, feeding handle, the number index dial number of turns of rotating longitudinally through rotating, the distance of coming to control to respectively horizontal and vertical adjacent holes, drilling pore-forming then,
3. after drill jig template pore-forming finishes corresponding lining and drill jig template are installed together, lining and drill jig template adopt interference fit;
(2) the high-strength bolt hole of connecting plate makes:
1. with the connecting plate of drill jig template and corresponding size according to the drill jig template last; Connecting plate under mode overlap, after the alignment of the center line of drill jig template and connecting plate it is clipped, and is placed on the drilling and milling machine horizontal operation platform; Fix with depression bar after the adjustment level
2. shake the feeding handle, carry out drilling after making drill bit extend into the drill jig pattern hole;
(3) the high-strength bolt hole of H Steel section member flange plate, web makes:
1. corresponding with the drill jig template horizontal control line that vertically reaches is set respectively on the flange plate of H shaped steel and web,
2. the drill jig template is placed on the lateral surface of flange plate or web of H shaped steel; The vertical control line of drill jig template aligns with flange plate or the vertical control line of web outside face; The horizontal control line of drill jig template aligns with the horizontal control line of H shaped steel, and the drill jig template is last, and flange plate or web are following; With anchor clamps drill jig template and flange plate or web are clamped
3. after affirmation is errorless, hole with the hole of the hollow rig aligning of magnetic support drill jig template.
2. coke dry quenching body frame structure high-strength bolt hole drill mold forming method according to claim 1; It is characterized in that strong material or the high hardness wear-resisting material of said passing through property of lining You temper process; Totally three kinds of specifications; Internal diameter is respectively three kinds of 18mm, 22mm, 24mm, wall thickness 4mm, and length equals the thickness of drill jig template.
3. coke dry quenching body frame structure high-strength bolt hole drill mold forming method according to claim 1 is characterized in that in lining and drill jig template engagement process, when their internal diameter wearing and tearing exceed 0.5mm, changes.
CN2009102731335A 2009-12-08 2009-12-08 Method for forming mold for drilling high-strength bolt holes for coke dry quenching body frame structure CN101758372B (en)

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DE3305210A1 (en) * 1983-02-16 1984-08-16 Georg Huber Hand-held drill with a drilling template for setting dowel holes
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