CN104234211A - Aluminum alloy connecting piece of building grid structure and processing method of aluminum alloy connecting piece - Google Patents
Aluminum alloy connecting piece of building grid structure and processing method of aluminum alloy connecting piece Download PDFInfo
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- CN104234211A CN104234211A CN201410468126.1A CN201410468126A CN104234211A CN 104234211 A CN104234211 A CN 104234211A CN 201410468126 A CN201410468126 A CN 201410468126A CN 104234211 A CN104234211 A CN 104234211A
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- aluminum alloy
- shrouding
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Abstract
The invention belongs to the field of grid structure buildings, and particularly relates to an aluminum alloy connecting piece of a building grid structure and a processing method of the aluminum alloy connecting piece. The aluminum alloy connecting piece comprises a sleeve, a sealing plate, a high-strength bolt and an aluminum alloy pipe, wherein the sleeve, the sealing plate, the high-strength bolt and the aluminum alloy pipe are sequentially arranged from left to right, the sleeve and the sealing plate are sequentially arranged on the high-strength bolt in a sleeving way, and the sleeve is fixedly arranged on the high-strength bolt through a tightening bolt which is arranged on the outer circumferential surface of the sleeve; the outer circumferential surface of the sealing plate is provided with a plurality of circles of convex edges, the sealing plate is fixedly arranged at one end of the aluminum alloy pipe in a pressing way, and the convex edges are embedded into the inner wall of the aluminum alloy pipe when the sealing plate is pressed. According to the aluminum alloy connecting piece and the processing method, disclosed by the invention, the technical problems in the prior art that the specific gravity of a steel member is large, the steel member is easily rusted, the welding of the aluminum alloy connecting piece is difficult, and the like are solved.
Description
Technical field
The invention belongs to space truss structure building field, be specifically related to a kind of aluminum alloy connector and processing method thereof of building net frame structure.
Background technology
At present, building net frame structure mainly adopts steel beam column.As Fig. 5 shows, space truss structure mainly comprises sphere nodes (11), steel pipe fitting (16), conehead (15), high-strength bolt (14), sleeve (13) and holding screw (12).Sphere nodes is the bolt sphere having bolt hole, and conehead is welded on the end of steel rod elements, and bolt is through end socket centre bore and sleeve, and holding screw is inserted in the keyway on bolt through sleeve screw.Both can bolt be screwed in bolt sphere by rotating holding screw, steel pipe fitting can be fixed in sphere nodes again.
Said structure is widely used in large-scale stadium, station, commerce trading center etc.But steel beam column is than great, the characteristic of easily getting rusty seriously governs its scope of application, and therefore stainless steel component and aluminium alloy element are used in space truss structure more and more.But present stage stainless steel involve great expense, than great, the characteristic of not easily welding be still one puzzlement building trade a difficult problem, govern its use amount.Aluminium alloy element, density is little, corrosion-resistant, has good mechanical performance.
Welded poor performance, can produce following impact for shrouding in space truss structure node with welding of aluminium alloys rod member: welding point is softening serious, and strength factor is low; Aluminum alloy surface easily produces oxide film hard to tolerate, needs the welding procedure of high power density; Welded joints in aluminium alloy easily produces pore, fire check; Aluminium alloys linear expansion coefficient is large, easily produces welding deformation; Aluminium alloys thermal conductivity large (being about 4 times of steel), the heat input of same weld speed is than welding large 2 ~ 4 times of steel.
Therefore Welded requires to adopt energy density greatly, and thermal weld stress is large, the high-efficiency welding method that speed of welding is high.And the Welded method of present stage advanced person is mainly the agitating friction welding, laser weld etc. of aluminium alloys.But above-mentioned welding equipment is expensive, and use cost is high, Welded technique simultaneously, welding material and solder technology have very high requirement, and welding quality is not easy to control, and has a strong impact on the application of aluminium alloy element in space truss structure.
In sum, the applicant provides a kind of aluminum alloy connector and processing method thereof of building net frame structure, and this case produces thus.
Summary of the invention
The first object of the present invention is the aluminum alloy connector providing a kind of building net frame structure, with to solve in prior art steel beam column than great, easily to get rusty and the technical problem such as aluminum alloy connector welding is difficult.
For solving the problem, the concrete technical scheme that the applicant provides is: a kind of aluminum alloy connector of building net frame structure, comprises sleeve, shrouding, high-strength bolt and the Aluminum Alloy Tube from left to right installed successively; Wherein, described sleeve and shrouding are sheathed on high-strength bolt successively, and sleeve is fixed on high-strength bolt by the consolidation screw that is located on sleeve outer peripheral face; Described shrouding outer peripheral face is provided with some circle fins, and shrouding is fixed in Aluminum Alloy Tube one end, and when shrouding compresses, described fin embeds Aluminum Alloy Tube inwall.
Further, the diameter of described three circle fins inside Aluminum Alloy Tube increases from inside to outside successively.
Further, the maximum gauge that the diameters and described three removing some circle fins remaining beyond described three circle fins enclose fin is equal.
Another object of the present invention is to the aluminum alloy connector processing method that a kind of building net frame structure is provided, to realize aluminum alloy connector processing and fabricating.
For achieving the above object, the concrete technical scheme that the applicant provides is: a kind of aluminum alloy connector processing method of building net frame structure: (1), arrange the extrusion equipment that has die holder and mould, described die holder and mould are divided into eight lobes, eight flap-type die holders are uniformly distributed and are provided with spring, and mould to be bolted on die holder and to be parallel to die holder;
(2), the shrouding outer rim that is provided with centre bore has some circle fins and some circle fins have gradient, is positioned over by shrouding in Aluminum Alloy Tube one end, sends in extrusion equipment by the aluminum alloy connector assembled by the running roller of adjustment height well;
(3), starter motor, drive oil pump export hydraulic oil, hydraulic oil enters hydraulic oil cylinder driving piston, make die holder produce radial contraction, realize the extruding of mould to aluminum alloy connector in extrusion equipment.
(4), extruding is when putting in place, and stop motor driving oil pump, solenoid operated directional valve commutates, the counter motion of oil cylinder inner plunger, and under spring force, mould oppositely opens, and takes out aluminum alloy connector, namely completes the squeeze flow of aluminium alloy component.
The extrusion equipment of Aluminum Alloy Tube and shrouding, it mainly comprises die holder, mould, baffle plate and hydraulic power unit.Described die holder and mould are divided into eight lobes, and eight flap-type die holders are uniformly distributed and are provided with spring, and hardness is not less than Rockwell HRC60; Mould to be bolted on die holder and to be parallel to die holder, and hardness is not less than Rockwell HRC50, is connected by described top-pressure part with hydraulic jack, and extrusion equipment one end is provided with baffle plate, and baffle center has the hole can passed for bolt.
Tool following advantages of the present invention:
(1) connection of Aluminum Alloy Tube and shrouding adopts cold extruding technique, effectively solve the material property that Welded brings to weaken, easy generation weld blowhole, crackle, welding difficulty is large, high in cost of production problem, simultaneously according to the cold work reinforced characteristic of metal material cold deformation, its extruded rear material structure is fine and close, fiber flow direction is continuous, there is good mechanical performance, make joint performance close to the performance of mother metal.
(2) shrouding rim openings has some circle fins, makes shrouding and aluminium-alloy pipe inwall in extrusion process, form mechanical snap fastening force closely, increases the intensity of joint.
(3) the some circle fins of shrouding have gradient, because aluminium-alloy pipe assembly is after pressing completes, impression is least favorable force part away from nose end, because extruding causes tube wall thinning, its sectional area is less than normal tube wall, when bearing uniform pressure, section stress is larger herein, easily tensile phenomenon occurs, by arranging gradient to ring buckle, can increase sectional crush herein complete after sectional area, realize tube wall weaken transmits with power evenly excessively, raising node supporting capacity.
(4) adopt eight flap-type die holder and moulds, die holder is uniformly distributed, and mould is parallel to the structure of die holder, drive die holder radial contraction by hydraulic jack, make mould produce radial compression to aluminium-alloy pipe assembly, stressed more even, product design neat appearance, extruding efficiency is high.
(5) mould has convertibility, difference being required to the Aluminum Alloy Tube assembly squeeze flow of different model, by changing corresponding mould, carrying out modularized production in enormous quantities.
(6) sleeve of the present invention adopts conical head, produces and interfere when can prevent larger-diameter aluminium-alloy pipe assembly from fixing in bolt sphere.
(7) the present invention adopts cold extrusion link technique, processing technology comparative maturity, and equipment is simple, and good work environment, production efficiency is high, constant product quality, good looking appearance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the aluminum alloy connector of building net frame structure of the present invention;
Fig. 2 is that aluminum alloy connector of the present invention is at the sectional view adding man-hour and extrusion equipment;
Fig. 3 be aluminum alloy connector of the present invention shrouding on the enlarged drawing of some circle fins;
Fig. 4 is the structural representation of extrusion equipment of the present invention;
Fig. 5 is prior art structural representation.
Detailed description of the invention
As Figure 1-4, what the present invention disclosed is a kind of aluminum alloy connector of building net frame structure, comprises sleeve 1, shrouding 2, high-strength bolt 3 and the Aluminum Alloy Tube 4 from left to right installed successively; Wherein, described sleeve 1 and shrouding 2 are sheathed on high-strength bolt 3 successively, and sleeve 1 is fixed on high-strength bolt 3 by a consolidation screw 5 be located on sleeve 1 outer peripheral face; Described shrouding 2 outer peripheral face is provided with some circle fins 21, and shrouding 2 is fixed in Aluminum Alloy Tube 4 one end, and when shrouding 2 compresses, described fin 21 embeds Aluminum Alloy Tube 4 inwall.
Shown in composition graphs 3, wherein, the diameter of described three circle fins 21 inside Aluminum Alloy Tube 4 increases from inside to outside successively; The maximum gauge that the diameters and described three removing some circle fins 21 remaining beyond described three circle fins 21 enclose fin 21 is equal.
A kind of aluminum alloy connector processing method of building net frame structure: (1), the extrusion equipment 10 that has die holder 8 and mould 7 is set, described die holder 8 and mould 7 are divided into eight lobes, eight flap-type die holders 8 are uniformly distributed and are provided with spring 9, and mould 7 to be bolted on die holder 8 and to be parallel to die holder 8 (as shown in Figure 4);
(2) shrouding 2 outer rim, being provided with centre bore has some circle fins 21 and some circle fins 21 have gradient, shrouding is positioned in Aluminum Alloy Tube 4 one end, the aluminum alloy connector 20 assembled is sent in extrusion equipment 10 by the running roller of adjustment height well;
(3), starter motor, drive oil pump export hydraulic oil, hydraulic oil enters hydraulic oil cylinder driving piston, makes die holder 8 produce radial contraction, realizes the extruding of aluminum alloy connector 20 in mould 7 pairs of extrusion equipments 10.
(4), extruding is when putting in place, and stop motor driving oil pump, solenoid operated directional valve commutates, the counter motion of oil cylinder inner plunger, and under the effect of spring 9 power, mould 7 oppositely opens, and takes out aluminum alloy connector 10, namely completes the squeeze flow of aluminum alloy connector 10.
The extrusion equipment 10 of Aluminum Alloy Tube and shrouding, it mainly comprises die holder, mould, baffle plate and hydraulic power unit.Described die holder and mould are divided into eight lobes, and eight flap-type die holders are uniformly distributed and are provided with spring, and hardness is not less than Rockwell HRC60; Mould to be bolted on die holder and to be parallel to die holder, and hardness is not less than Rockwell HRC50, is connected by described top-pressure part with hydraulic jack, and extrusion equipment one end is provided with baffle plate, and baffle center has the hole can passed for bolt.
Claims (4)
1. an aluminum alloy connector for building net frame structure, is characterized in that: comprise sleeve, shrouding, high-strength bolt and the Aluminum Alloy Tube from left to right installed successively; Wherein, described sleeve and shrouding are sheathed on high-strength bolt successively, and sleeve is fixed on high-strength bolt by the consolidation screw that is located on sleeve outer peripheral face; Described shrouding outer peripheral face is provided with some circle fins, and shrouding is fixed in Aluminum Alloy Tube one end, and when shrouding compresses, described fin embeds Aluminum Alloy Tube inwall.
2. the aluminum alloy connector of a kind of building net frame structure according to claim 1, is characterized in that: the diameter of described three circle fins inside Aluminum Alloy Tube increases from inside to outside successively.
3. the aluminum alloy connector of a kind of building net frame structure according to claim 2, is characterized in that: the maximum gauge that the diameters and described three removing some circle fins remaining beyond described three circle fins enclose fin is equal.
4. an aluminum alloy connector processing method for building net frame structure, is characterized in that:
(1), arrange the extrusion equipment that has die holder and mould, described die holder and mould are divided into eight lobes, and eight flap-type die holders are uniformly distributed and are provided with spring, and mould to be bolted on die holder and to be parallel to die holder;
(2), the shrouding outer rim that is provided with centre bore has some circle fins and some circle fins have gradient, is positioned over by shrouding in Aluminum Alloy Tube one end, sends in extrusion equipment by the aluminum alloy connector assembled by the running roller of adjustment height well;
(3), starter motor, drive oil pump export hydraulic oil, hydraulic oil enters hydraulic oil cylinder driving piston, make die holder produce radial contraction, realize the extruding of mould to aluminum alloy connector in extrusion equipment;
(4), extruding is when putting in place, and stop motor driving oil pump, solenoid operated directional valve commutates, the counter motion of oil cylinder inner plunger, and under spring force, mould oppositely opens, and takes out aluminum alloy connector, namely completes the squeeze flow of aluminium alloy component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468126.1A CN104234211A (en) | 2014-09-15 | 2014-09-15 | Aluminum alloy connecting piece of building grid structure and processing method of aluminum alloy connecting piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410468126.1A CN104234211A (en) | 2014-09-15 | 2014-09-15 | Aluminum alloy connecting piece of building grid structure and processing method of aluminum alloy connecting piece |
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| CN104234211A true CN104234211A (en) | 2014-12-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652618A (en) * | 2015-02-11 | 2015-05-27 | 东南大学 | Space gridding steel structure assembly type node and assembling method thereof |
| CN106001279A (en) * | 2016-06-30 | 2016-10-12 | 浙江东南网架股份有限公司 | Mold-pressing device for aluminium alloy grid rod piece and necking molding method of device |
| CN106013468A (en) * | 2016-07-01 | 2016-10-12 | 天津大学 | Adapter for aluminum alloy welded hollow sphere joint |
| CN106088329A (en) * | 2016-08-17 | 2016-11-09 | 成都戎创航空科技有限公司 | The compound rod member of belt lacing |
| CN106088325A (en) * | 2016-07-01 | 2016-11-09 | 天津大学 | A kind of adapter for aluminium alloy bolted spherical node |
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| JP2000110166A (en) * | 1998-10-02 | 2000-04-18 | Nisshoku Corp | Slope protection coupler and grating crib works using the same |
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| CN102182250A (en) * | 2011-04-08 | 2011-09-14 | 浙江东南网架股份有限公司 | Novel aluminum alloy bolt ball grid frame node and grid frame mounting method thereof |
| CN204151908U (en) * | 2014-09-15 | 2015-02-11 | 浙江精工钢结构集团有限公司 | A kind of aluminum alloy connector of building net frame structure |
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2014
- 2014-09-15 CN CN201410468126.1A patent/CN104234211A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000110166A (en) * | 1998-10-02 | 2000-04-18 | Nisshoku Corp | Slope protection coupler and grating crib works using the same |
| CN1271798A (en) * | 1999-04-22 | 2000-11-01 | 中国建筑科学研究院建筑结构研究所 | Assembly of Al-alloy pipe and closure end and linking method and unit thereof |
| CN2628653Y (en) * | 2003-06-06 | 2004-07-28 | 安琦 | Rack with ball-shaped roof structure |
| CN102182250A (en) * | 2011-04-08 | 2011-09-14 | 浙江东南网架股份有限公司 | Novel aluminum alloy bolt ball grid frame node and grid frame mounting method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652618A (en) * | 2015-02-11 | 2015-05-27 | 东南大学 | Space gridding steel structure assembly type node and assembling method thereof |
| CN106001279A (en) * | 2016-06-30 | 2016-10-12 | 浙江东南网架股份有限公司 | Mold-pressing device for aluminium alloy grid rod piece and necking molding method of device |
| CN106001279B (en) * | 2016-06-30 | 2018-05-22 | 浙江东南网架股份有限公司 | The molding device of aluminium alloy rod member for grid and its draw manufacturing process |
| CN106013468A (en) * | 2016-07-01 | 2016-10-12 | 天津大学 | Adapter for aluminum alloy welded hollow sphere joint |
| CN106088325A (en) * | 2016-07-01 | 2016-11-09 | 天津大学 | A kind of adapter for aluminium alloy bolted spherical node |
| CN106088329A (en) * | 2016-08-17 | 2016-11-09 | 成都戎创航空科技有限公司 | The compound rod member of belt lacing |
| CN106088329B (en) * | 2016-08-17 | 2019-01-29 | 成都戎创航空科技有限公司 | The compound rod piece of belt lacing |
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Application publication date: 20141224 |