CN204093856U - A kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool - Google Patents
A kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool Download PDFInfo
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- CN204093856U CN204093856U CN201420669570.5U CN201420669570U CN204093856U CN 204093856 U CN204093856 U CN 204093856U CN 201420669570 U CN201420669570 U CN 201420669570U CN 204093856 U CN204093856 U CN 204093856U
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Abstract
The utility model relates to aluminium alloy section extruding die tool field.A kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool, the upper die and lower die of superposition before and after comprising and die-cushion, the uniform some shunting bridges in described patrix charging face, form tap hole between adjacent shunting bridge, and described shunting bridging connects the core print supporting and be positioned at patrix center; Described core print is provided with through hole along its central axis, is provided with coupling rod member in described through hole, and rod member two ends are formed and extrude core print both ends of the surface.The utility model improves the stressed of shunting bridge, improves die life, can also reduce the temperature of extruding ingot casting, prevent recrystallization, create good economic benefit.
Description
Technical field
The utility model relates to aluminium alloy section extruding die tool field, particularly a kind of high ferro car body Al-Zn-Mg alloy hollow-section extrusion mould.
Background technology
Along with developing rapidly of Chinese high ferro, from introduction, digestion, absorption, innovation, to the production domesticization of car body aluminium alloy critical material, the aluminium extrusion of China has also welcome new development.For the Al-Zn-Mg alloy hollow profile of the most difficult extruding of high ferro car body, very strict to the requirement of mould.Al-Zn-Mg alloy belongs to 7xxx alloy, and viscosity is large, and hardness is high, and flow stress is more much larger than 6xxx, and such alloy is all generally solid profile, relatively good crowded, but for such alloy hollow section bar, then very difficult crowded, bridge is very easy to split.High warm extrusion, alloy easily produces recrystallization, low warm extrusion, and bridge easy fracture, die life is low.
Hollow profile mould, generally combined by upper die and lower die and die-cushion, patrix has tap hole, shunting bridge, core print, and the core print supported by shunting bridge realizes the interior shape of section bar, and counterdie realizes the outer shape of section bar, bonding container can be formed after upper and lower die combination, during extruding, aluminium by the tap hole of patrix, after arriving bonding container seam together, finally by the work strip of core print and counterdie, form hollow profile.
General hollow profile Design of Dies, core print is directly supported by shunting bridge, and the empty cutter before core print work strip is general all vertical, and because Al-Zn-Mg alloy viscosity is high, flow stress large, shunting the Way out of bridge and core print, the most easily split, die life is low.
Utility model content
Goal of the invention of the present utility model is: for above-mentioned technical problem; a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool is provided; particularly a kind of high ferro car body Al-Zn-Mg alloy hollow-section extrusion mould; the utility model is by changing the bang path of power thus the empty cutter design before improving the stress distribution of core print, core print work strip reduces aluminium to the adhesion strength of core print to the design of the porch of patrix dispersion extruding force, the design of installing screw rod on core print; protect the stressed of bridge, improve die life.
Technical solutions of the utility model are: a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool, the upper die and lower die of superposition before and after comprising and die-cushion, the uniform some shunting bridges in described patrix charging face, form tap hole between adjacent shunting bridge, and described shunting bridging connects the core print supporting and be positioned at patrix center; Described core print is provided with through hole along its central axis, is provided with coupling rod member in described through hole, and rod member two ends are formed and extrude core print both ends of the surface.
Further understanding, in hollow profile actual production, because Al-Zn-Mg alloy viscosity is high, flow stress large, at the shunting bridge of upper mould and the Way out of core print, there will be and easily split, the problem that die life is low.Therefore adopt the design of dispersion extruding force here, namely arrange through hole along core print central axis, arrange the rod member of size coupling in through hole, the two ends of rod member are formed and extrude core print both ends of the surface.The power of the most weakness of the shunting binding site of bridge in core print exit can be delivered to the entrance side of shunting bridge like this by rod member, reach the stressed object reducing shunting bridge.
Preferably, described rod member comprises screw rod and nut, and described through hole is mated in described screw rod bar footpath, and described screw rod passes through hole and uses nut tightening.Adopt screw rod and nut screwing clamping can realize the purpose of this utility model in its simplest form, this spline structure is simpler, and convenient manufacture, saves manufacturing cost.
Preferably, described through hole two ends are provided with the counterbore at coupling rod member two ends, and described through hole upper end counterbore adopts cover plate capping.Need know, through hole upper end counterbore is positioned at charging aperture, is the impact that minimizing work is aluminium liquid on rod member or screw rod, adopts cover plate capping to completely cut off.The mode of welding can be adopted cover plate capping.
Preferably, described core print upper surface is positioned at below patrix charging face, and described core print upper surface and patrix charging face are at a distance of 30-50mm.In existing product, the charging face of patrix is flush configuration, and namely core print upper surface is concordant with the charging face of patrix.But, the porch stress of patrix can be caused like this to concentrate.For this reason, design core print upper surface sinks, and further shunting bridge is that 20-35 ° of inclination connects core print upper surface and patrix charging face.Ingot casting can be disperseed the shear stress of shunting bridge by inclined-plane like this, reduce the stressed of shunting bridge.
Preferably, the empty knife face at the bottom of the bridge of described patrix before core print work strip and direction of extrusion angle are 5-15 °.Here change the design that empty knife face is vertical with the direction of extrusion in the past, the viscous force of core print can be reduced like this, decrease the stressed of bridge.
The utility model beneficial effect is:
The utility model improves the stressed of shunting bridge, improves die life, can also reduce the temperature of extruding ingot casting, prevent recrystallization, create good economic benefit.
The utility model adopts the design of installation member on core print, changes the bang path of power thus improves the stress distribution of core print; The power of the most weakness of the shunting binding site of bridge in core print exit is delivered to the entrance side of shunting bridge by rod member, reduces the stressed of shunting bridge, improve die life.
The utility model, by the design of the design dispersion extruding force to the porch of patrix, sinks by core print upper surface, and the charging face of core print upper surface and patrix, in ramp designs, optimizes the stressed of the porch shunting bridge of patrix.
Empty knife face and the direction of extrusion are in the past vertical design by the utility model, change inclined plane design into, the adhesion strength of core print is reduced, decrease and shunt the stressed of bridge; Meet the production requirement that Al-Zn-Mg alloy viscosity is high, flow stress is large.
Accompanying drawing explanation
Fig. 1 is the utility model structure top view;
Fig. 2 is the A-A sectional view in Fig. 1;
Fig. 3 is the B-B sectional view in Fig. 1.
Wherein, 1-patrix, 2-counterdie, 3-die-cushion, 4-shunt bridge, 5-tap hole, 6-cover plate, 7-nut, 8-screw rod, 9-core print, the empty knife face of 10-.
Detailed description of the invention
The utility model discloses a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool, the patrix 1 of superposition before and after comprising and counterdie 2, the uniform some shunting bridges 4 in described patrix 1 charging face, form tap hole 5 between adjacent shunting bridge 4, and described shunting bridge 4 connects the core print 9 supporting and be positioned at patrix 1 center; Described core print 9 is provided with through hole along its central axis, is provided with coupling rod member in described through hole, and rod member two ends are formed and extrude core print 9 both ends of the surface.
The utility model is high for Al-Zn-Mg alloy viscosity, flow stress large, shunting the Way out of bridge 4 and core print 9, the most easily splits, the problem that die life is low, adopts the design of dispersion extruding force.Namely arrange through hole along core print 9 central axis, arrange the rod member of size coupling in through hole, the two ends of rod member are formed and extrude core print 9 both ends of the surface.The power of the most weakness of the shunting binding site of bridge 4 in core print 9 exit can be delivered to the entrance side of shunting bridge 4 like this by rod member, reach the stressed object reducing shunting bridge 4.
Implement to be described to the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, being the utility model structure top view, is the top view of patrix 1 shown in figure.Charging face uniform four shunting bridges 4, four shunting bridges 4 of patrix 1 are that radioactivity is arranged along patrix 1 center; Form tap hole 5 between adjacent shunting bridge 4, described shunting bridge 4 connects the core print 9 supporting and be positioned at patrix 1 center.The core print 9 supported by shunting bridge 4 realizes the interior shape of section bar, counterdie 2 realizes the outer shape of section bar, bonding container can be formed after the combination of patrix 1, counterdie 2, during extruding, aluminium is by the tap hole 5 of patrix 1, after arriving bonding container seam together, finally by the work strip of core print 9 and counterdie 2, form hollow profile.
As shown in Figure 2, be the A-A sectional view of Fig. 1, comprise the patrix 1, counterdie 2 and the die-cushion 3 that superpose successively.Patrix 1 center is provided with core print 9, or is core rod.Be provided with through hole along its central axis of core print 9, be provided with coupling rod member in described through hole, rod member two ends are formed and extrude core print 9 both ends of the surface.Concrete, rod member comprises screw rod 8 and nut 7, and described through hole is mated in described screw rod 8 bar footpath, and described screw rod 8 also tightens with nut 7 through through hole.Wherein, described through hole two ends are provided with the counterbore at coupling screw rod 8 two ends, and after screw rod 8 and nut 7 are tightened, through hole upper end counterbore adopts cover plate 6 capping.Adopt screw rod 8 and nut 7 to tighten and can realize the purpose of this utility model in its simplest form, this spline structure is simpler, convenient manufacture.Also need to know, through hole upper end counterbore is positioned at charging aperture, is the impact that minimizing work is aluminium liquid on rod member or screw rod 8, adopts cover plate 6 capping to completely cut off.The mode of welding can be adopted cover plate 6 capping.
As shown in Figure 3, be the B-B sectional view of Fig. 1.Here can have a clear understanding of, patrix 1, counterdie 2 and die-cushion 3 superpose successively, arrange the locating hole of corresponding alignment pin and coupling alignment pin between patrix 1, counterdie 2.Core print 9 upper surface is positioned at below patrix 1 charging face, and core print 9 upper surface and patrix 1 charging identity distance are 35mm from h.Here be only to provide one of them preferred embodiment, value all can practical function demand between 30-50mm for h.Clear and definite, adopt charging aperture to sink to designing here, and shunting bridge 4 is 25 ° of charging faces tilting to connect core print 9 upper surface and patrix 1 in angle a; Certainly, can choose by numerical value between 20-35 ° at described angle a, only be to provide one of them preferred embodiment here.In existing product, the charging face of patrix 1 is flush configuration, and namely core print 9 upper surface is concordant with the charging face of patrix 1.But, the porch stress of patrix 1 can be caused like this to concentrate.For this reason, design core print 9 upper surface sinks, and further shunting bridge 4 tilts to connect core print 9 upper surface and patrix 1 charging face in 20-35 °.Ingot casting can be disperseed the shear stress of shunting bridge 4 by inclined-plane like this, reduce the stressed of shunting bridge 4.
Further optimization, the empty knife face 10 at the bottom of the bridge of described patrix 1 before core print 9 work strip is 6 ° with direction of extrusion angle b, and empty knife face 10 is tilt to patrix 1 central axis from top to bottom.Namely certain, can choose between 5-15 ° at described angle b, only be to provide one of them preferred embodiment here.Here change the design that empty knife face 10 is vertical with the direction of extrusion in the past, the adhesion strength of core print 9 can be reduced like this, decrease the stressed of bridge.
Claims (8)
1. an Extrusion Moulding for Aluminum Alloy Tubing Bars tool, the upper die and lower die of superposition before and after comprising and die-cushion, the uniform some shunting bridges in described patrix charging face, form tap hole between adjacent shunting bridge, and described shunting bridging connects the core print supporting and be positioned at patrix center; It is characterized in that: described core print is provided with through hole along its central axis, be provided with coupling rod member in described through hole, rod member two ends are formed and extrude core print both ends of the surface.
2. a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool according to claim 1, is characterized in that: described rod member comprises screw rod and nut, and described through hole is mated in described screw rod bar footpath, and described screw rod passes through hole and uses nut tightening.
3. a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool according to claim 1, is characterized in that: described through hole two ends are provided with the counterbore at coupling rod member two ends, and described through hole upper end counterbore adopts cover plate capping.
4. a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool according to claim 1, is characterized in that: described core print upper surface is positioned at below patrix charging face, and described core print upper surface and patrix charging face are at a distance of 30-50mm.
5. a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool according to claim 1, is characterized in that: described core print upper surface is positioned at below patrix charging face, and described shunting bridge is 20-35 ° and tilts to connect core print upper surface and patrix charging face.
6. a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool according to claim 1, is characterized in that: the empty knife face at the bottom of the bridge of described patrix before core print work strip and direction of extrusion angle are 5-15 °.
7. a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool according to claim 1, is characterized in that: described shunting bridge is in arranging along patrix center radioactivity.
8. a kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool according to claim 1, is characterized in that: described upper die and lower die coupling end face arranges some alignment pins and mate with alignment pin locating hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420669570.5U CN204093856U (en) | 2014-11-11 | 2014-11-11 | A kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool |
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| CN201420669570.5U CN204093856U (en) | 2014-11-11 | 2014-11-11 | A kind of Extrusion Moulding for Aluminum Alloy Tubing Bars tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289547A (en) * | 2014-11-11 | 2015-01-21 | 广西南南铝加工有限公司 | Aluminium alloy hollow profile extrusion die |
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- 2014-11-11 CN CN201420669570.5U patent/CN204093856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289547A (en) * | 2014-11-11 | 2015-01-21 | 广西南南铝加工有限公司 | Aluminium alloy hollow profile extrusion die |
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