CN211539020U - Aluminum alloy extrusion die - Google Patents
Aluminum alloy extrusion die Download PDFInfo
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- CN211539020U CN211539020U CN201922114851.XU CN201922114851U CN211539020U CN 211539020 U CN211539020 U CN 211539020U CN 201922114851 U CN201922114851 U CN 201922114851U CN 211539020 U CN211539020 U CN 211539020U
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Abstract
The utility model relates to an aluminum alloy extrusion die, which comprises a die shell, wherein the die shell is cylindrical, two circular end faces of the die shell are respectively a feeding face and a discharging face, two extrusion cavities are arranged in the die shell, the two extrusion cavities both penetrate through the feeding face and the discharging face, and the openings of the two extrusion cavities on the feeding face are arranged in axial symmetry along a diameter on the feeding face; the die shell is internally provided with a connecting cavity for connecting the two extrusion cavities, the cross section of the connecting cavity is in an axisymmetric pattern, and the two connecting cavities penetrate through the feeding surface and the discharging surface. Two are the extrusion chamber that the axial symmetry set up and the cooperation of a connection chamber for the aluminum alloy casting rod passes through the utility model discloses a time going can extrude two aluminum alloy ex-trusions that become the axial symmetry setting and link together through the connecting portion that connect the chamber and form, reduce aluminum alloy ex-trusions because the shape asymmetry appears asymmetric deformation when leading to the cooling phenomenon, reach the effect that reduces the easy production warping phenomenon of aluminum alloy ex-trusions.
Description
Technical Field
The utility model belongs to the technical field of extrusion die's technique and specifically relates to an aluminum alloy extrusion die is related to.
Background
At present, extrusion molding is a main processing method of aluminum profiles, and has the following characteristics: (1) the plasticity of the processed metal can be fully exerted; (2) can produce various section shapes and pipes with variable cross sections and extremely complex shapes; (3) the processing flexibility is large, and products with different shapes, specifications and varieties can be produced on one device only by replacing extrusion tools such as dies and the like. The extrusion process has the advantages of reducing equipment investment, saving energy, improving the utilization rate of metal, reducing the total cost of products and the like.
As shown in fig. 1, the existing aluminum alloy extrusion die comprises a die shell 1, wherein the die shell 1 is cylindrical as a whole, the die shell 1 comprises a feeding surface 2, a discharging surface 3 and an extrusion cavity 11, and two ends of the extrusion cavity 11 penetrate through the feeding surface 2 and the discharging surface 3; two guide holes 21 and two bolt holes are formed in the feeding surface 2, and the two guide holes 21 and the two bolt holes are respectively positioned on two diameters of the feeding surface 2; the opening area of the extrusion chamber 11 on the feed surface 2 is larger than the opening area of the discharge surface 3. The aluminum alloy extrusion die is fixed on an extruder through the guide hole 21 and the two bolt holes, an aluminum alloy cast rod enters the extrusion cavity 11 through the opening of the feeding surface 2 to be extruded, and then the aluminum alloy cast rod is extruded and processed into an aluminum alloy section for a rear cross beam of the battery bracket through the extrusion cavity 11.
The above prior art solutions have the following drawbacks: because the section of the extrusion cavity is an irregular figure, namely the end face of the aluminum alloy section is an asymmetric figure, the extruded aluminum alloy section is easy to generate asymmetric deformation when being cooled, asymmetric residual stress is generated, the total residual stress value is increased, and the aluminum alloy section is easy to warp.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide an aluminum alloy section bar, its extrusion chamber that has two symmetries can once only extrude two aluminum alloy section bars that are the axial symmetry, reaches and avoids aluminum alloy section bar easily to produce warped effect.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
an aluminum alloy extrusion die comprises a die shell, wherein the die shell is cylindrical, two circular end faces of the die shell are respectively a feeding face and a discharging face, two extrusion cavities are arranged in the die shell, the two extrusion cavities penetrate through the feeding face and the discharging face, and openings of the two extrusion cavities on the feeding face are arranged in an axial symmetry mode along one diameter of the feeding face; the die shell is internally provided with a connecting cavity for connecting the two extrusion cavities, the cross section of the connecting cavity is in an axisymmetric pattern, and the two connecting cavities penetrate through the feeding surface and the discharging surface.
By adopting the technical scheme, the two extrusion cavities which are axially symmetrically arranged along the diameter on the feeding surface are matched with one connecting cavity, so that the aluminum alloy cast rod can extrude two aluminum alloy sections which are axially symmetrically arranged by one step through the aluminum alloy cast rod extrusion die and are connected together through the connecting part formed by the connecting cavity, the phenomenon that the aluminum alloy sections are asymmetrically deformed during cooling due to asymmetric shapes is reduced, and the phenomenon that the aluminum alloy sections are easy to warp is reduced; simultaneously, two aluminum alloy sections are extruded at one time, and the production efficiency is improved.
The present invention may be further configured in a preferred embodiment as: the opening section of the connecting cavity on the discharge surface comprises a rectangular connecting part, two trapezoidal supporting parts and two rectangular breaking parts; the two supporting parts are respectively positioned at two ends of the connecting part along the length direction, and the lower bottom edges of the two trapezoidal supporting parts are superposed with the wide edges of the connecting part; the wide edges of the two breaking parts are respectively superposed with the upper bottom edges of the two supporting parts.
Through adopting above-mentioned technical scheme, through the setting of connecting the chamber at the opening cross-section of ejection of compact face, can make the connection piece between two aluminum alloy ex-trusions that the extrusion produced more easily follow the position rupture that the rupture portion corresponds and take off, improve production efficiency.
The present invention may be further configured in a preferred embodiment as: two guide holes and two threaded holes are formed in the feeding surface, the two guide holes and the two bolt holes are respectively located on two diameters of the feeding surface, and the two guide holes and the two bolt holes are not respectively located at four corners of the same square on the feeding surface.
Through adopting above-mentioned technical scheme, two guiding holes are used for the mould installation when leading with supplementary fixed effect, and the effect of screw hole is fixed the mould, two guiding hole and two bolt holes are located four angles of same square on a charge level respectively, can be with the steady fixing of mould on the extruder for two openings in extrusion chamber and connection chamber are located same water flat line, make the output that the aluminum alloy ex-trusions that extrude can be steady, make things convenient for the cooling of aluminum alloy ex-trusions.
The present invention may be further configured in a preferred embodiment as: two one end that the extrusion chamber is close to the charge level all is equipped with the chamber of extrudeing in advance, two the area of the external profile in chamber of extrudeing in advance all is greater than the area of the external profile in two extrusion chambers, the one end in chamber of extrudeing in advance is connected with the extrusion chamber and is formed the step face, and the other end runs through the charge level.
Through adopting above-mentioned technical scheme, the setting in extrusion chamber in advance can cast the stick to the aluminum alloy and carry out extrusion in advance and handle, reduces the extrusion degree of difficulty, promotes extrusion efficiency for the section bar ejection of compact is more stable, and ensures the basic size of section bar, improves the straight line of section bar, crooked and twist the degree.
The present invention may be further configured in a preferred embodiment as: the two ends of the connection part of the extrusion cavity and the connection cavity in the width direction are provided with fan-shaped bulges which are formed by extruding semicircular grooves on the aluminum alloy section.
Through adopting above-mentioned technical scheme, two fan-shaped bellied settings in every extrusion chamber for the aluminium alloy ex-trusions that extrude and connection piece junction produce a semicircular recess, can hide the burr that produces when the connection piece breaks from aluminium alloy ex-trusions, guarantee the smoothness of aluminium alloy ex-trusions surface.
The present invention may be further configured in a preferred embodiment as: two extrusion chamber and charge-in face and play charge-in face junction all are equipped with round chamfer, and the chamfer radius of round chamfer is 2 mm.
Through adopting above-mentioned technical scheme, the setting up of round chamfer can be so that the aluminium alloy cast stick more smooth and easy extrusion go into the mould in, avoid aluminium alloy ex-trusions surface by the fish tail and make aluminium alloy ex-trusions ejection of compact more stable.
The present invention may be further configured in a preferred embodiment as: two kidney-shaped key grooves are formed in the feeding surface.
Through adopting above-mentioned technical scheme, the setting of waist shape keyway can be fixed and fix a position the mould for the mould can be accurate fix on the extruder.
The present invention may be further configured in a preferred embodiment as: the depth of the two kidney-shaped key grooves is 20 mm.
Through adopting above-mentioned technical scheme, the waist shape keyway that 20mm is dark can be ensured to fix and fix a position the mould for the mould can be accurate fix on the extruder.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through the arrangement of the two extrusion cavities which are axisymmetric and the connecting cavity, the aluminum alloy cast rod can extrude two aluminum alloy sections which are axisymmetric and are arranged at one time through the utility model and are connected together through the connecting part formed by the connecting cavity, so that the phenomenon of asymmetric deformation of the aluminum alloy sections during cooling due to asymmetric shape is reduced, and the phenomenon of easy warping of the aluminum alloy sections is reduced; two bodies are extruded at one time, so that the production efficiency is improved;
2. through the arrangement of the two pre-extrusion cavities, pre-extrusion treatment can be performed on the aluminum alloy cast rod, the extrusion difficulty is reduced, the extrusion efficiency is improved, the discharging of the section bar is more stable, the basic size of the section bar is ensured, and the straight line, bending and twisting degrees of the section bar are improved;
3. through fan-shaped bellied setting for the aluminium alloy ex-trusion and connection piece junction that extrude produce a semicircular recess, can hide the burr that produces when the connection piece breaks from aluminium alloy ex-trusion, guarantee the smoothness of aluminium alloy ex-trusion surface.
Drawings
Fig. 1 is a schematic structural view of a feeding surface of an aluminum alloy extrusion die shown in the background art of the present invention.
Fig. 2 is a schematic structural view of the discharge surface of the aluminum alloy extrusion die shown in the background art of the present invention.
Fig. 3 is a schematic structural diagram of a feeding surface of an aluminum alloy extrusion die shown in the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of the discharge surface of the aluminum alloy extrusion die shown in the embodiment of the present invention.
Fig. 5 is an enlarged view of a portion a in fig. 3.
In the figure, 1, a mold housing; 11. an extrusion chamber; 111. a square column; 112. a fan-shaped bulge; 12. a pre-extrusion chamber; 121. a step surface; 13. a connecting cavity; 131. a connecting portion; 132. a support portion; 133. a breaking part; 2. feeding surface; 21. a guide hole; 22. a threaded hole; 23. a kidney-shaped key slot; 3. and (7) discharging surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 3 and 4, for the utility model discloses an aluminum alloy section, including mould casing 1, mould casing 1 is cylindricly, and two circular terminal surfaces of mould casing 1 are charge level 2 and play charge level 3 respectively. Be equipped with two extrusion chambeies 11 in the mould casing 1, two extrusion chambeies 11 all run through feeding face 2 and play charge level 3, and two extrusion chambeies 11 are axisymmetric setting along a diameter on the feeding face 2 at the opening of feeding face 2. The die shell 1 is internally provided with a connecting cavity 13 for connecting the two extrusion cavities 11, the section of the connecting cavity 13 is in an axisymmetric pattern, and the two connecting cavities 13 both penetrate through the feeding surface 2 and the discharging surface 3. The two extrusion cavities 11 which are axially symmetrically arranged along the diameter of one feeding surface 2 are matched with one connecting cavity 13, so that the aluminum alloy cast rod can extrude two aluminum alloy sections which are axially symmetrically arranged by one operation of the aluminum alloy cast rod and are connected together through the connecting part 131 formed by the connecting cavity 13, the phenomenon that the aluminum alloy sections are asymmetrically deformed during cooling due to asymmetric shapes is reduced, and the phenomenon that the aluminum alloy sections are easy to warp is reduced; simultaneously, two aluminum alloy sections are extruded at one time, and the production efficiency is improved. Wear to be equipped with one in the extrusion chamber 11 and be used for extruding the square post 111 of square through-hole with the aluminum alloy ex-trusions, the inside wall fixed connection of the one end that is close to ejection of compact face 3 and extrusion chamber 11 on the square post 111 lateral wall, but can not influence the integrality of the aluminum alloy ex-trusions of output.
Referring to fig. 3 and 4, the two extrusion cavities 11 are provided with pre-extrusion cavities 12 at ends close to the feeding surface 2, the areas of the external profiles of the two extrusion cavities 12 are larger than those of the external profiles of the two extrusion cavities 11, one end of each pre-extrusion cavity 12 is connected with the extrusion cavity 11 to form a step surface 121, the other end of each pre-extrusion cavity 12 penetrates through the feeding surface 2, and the corners of the step surfaces 121 are provided with round chamfers with the radius of 0.5 mm. The pre-extrusion cavity 12 can pre-extrude the aluminum alloy cast rod, so that the extrusion difficulty is reduced, the extrusion production efficiency is improved, the discharging of the aluminum alloy section is more stable, the basic size of the aluminum alloy section is ensured, and the straight line, the bending degree and the twisting degree of the aluminum alloy section are improved. Two extrusion chamber 11 and two are extruded chamber 12 in advance and are all equipped with the round chamfer with the feeding surface 2 with the 3 junctions of play charge level, and the chamfer radius of round chamfer is 2mm, can be so that the aluminium alloy cast stick more smooth and easy extrusion go into the mould in, avoid aluminium alloy ex-trusions surface by the fish tail and make the aluminium alloy ex-trusions ejection of compact more stable.
Referring to fig. 3 and 5, the connection chamber 13 includes a rectangular connection portion 131, two trapezoidal support portions 132, and two rectangular fracture portions 133 in the opening cross section of the discharge surface 3; the two supporting parts 132 are respectively positioned at two ends of the connecting part 131 along the length direction, and the lower bottom edges of the two trapezoidal supporting parts 132 are overlapped with the wide edges of the connecting part 131; the wide sides of the two breaking portions 133 overlap the upper bottom sides of the two support portions 132, respectively. The two ends of the connection part of the extrusion cavity 11 and the connection cavity 13 along the width direction are both provided with fan-shaped bulges 112 for extruding semicircular grooves on the aluminum alloy section. The arrangement of the connecting cavity 13 on the opening section of the discharging surface 3 can enable the connecting sheet between two aluminum alloy sections produced by extrusion to be broken and taken down from the position corresponding to the breaking part 133 more easily, and the production efficiency is improved; meanwhile, due to the arrangement of the two fan-shaped protrusions 112 of each extrusion cavity 11, a semicircular groove is formed at the joint of the extruded aluminum alloy section and the connecting sheet, burrs generated when the connecting sheet is broken off from the aluminum alloy section can be hidden, and the smoothness of the outer surface of the aluminum alloy section is ensured.
Referring to fig. 3 and 4, the feeding surface 2 is provided with two guide holes 21 and two threaded holes 22, the two guide holes 21 and the two bolt holes are respectively located on two diameters of the feeding surface 2, and the two guide holes 21 and the two bolt holes are not respectively located on four corners of the same square on the feeding surface 2. Two guiding holes 21 are used for the mould installation to lead and supplementary fixed effect, two screw hole 22's effect is fixed the mould, two guiding holes 21 and two bolt holes are located four angles of same square on one charge level 2 respectively, can be with the steady fixing of mould on the extruder, make two extrusion chamber 11 and the opening of connecting chamber 13 be located same water flat line, make the output that the aluminum alloy ex-trusions that extrude can be steady, make things convenient for the cooling of aluminum alloy ex-trusions. Two waist-shaped key grooves 23 are formed in the feeding surface 2, the depth of each waist-shaped key groove 23 is 20mm, the two waist-shaped key grooves 23 are respectively positioned between the guide hole 21 and the threaded hole 22, one waist-shaped key groove is positioned above the guide hole 21 and the threaded hole 22, and the other waist-shaped key groove 23 is positioned below the guide hole 21 and the threaded hole 22 at the bottom; the waist-shaped key groove 23 can fix and position the die, so that the die can be accurately fixed on the extruder.
The implementation principle of the embodiment is as follows: will the utility model discloses a screw hole 22, guiding hole 21 and waist shape keyway 23 are installed on the extruder, the aluminium alloy after the heating is cast the stick and is got into through charge-in face 2 and extrude moulding processing in advance in the chamber 12, then the extrusion gets into two extrusion chamber 11 and one and connect the intracavity 13, from the 3 output of discharge surface by two aluminium alloy ex-trusions that produce by extrusion chamber 11 and the connection piece that a connecting portion 13 produced constitute the product, the cross-section of two aluminium alloy ex-trusions and a connection piece is the axial symmetry figure, reduce aluminium alloy ex-trusions because the asymmetric phenomenon that appears when leading to the cooling of shape, reduce aluminium alloy ex-trusions and easily produce warping phenomenon, simultaneously pass through the utility model discloses can once only extrude two aluminium alloy ex-trusions, promote production efficiency.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides an aluminum alloy extrusion die, includes mould casing (1), its characterized in that: the die shell (1) is cylindrical, the two circular end faces of the die shell (1) are respectively a feeding face (2) and a discharging face (3), two extrusion cavities (11) are arranged in the die shell (1), the two extrusion cavities (11) penetrate through the feeding face (2) and the discharging face (3), and the openings of the two extrusion cavities (11) on the feeding face (2) are arranged in an axial symmetry mode along one diameter on the feeding face (2); the die is characterized in that a connecting cavity (13) for connecting two extrusion cavities (11) is arranged in the die shell (1), the section of the connecting cavity (13) is an axisymmetric pattern, and the connecting cavity (13) penetrates through the feeding surface (2) and the discharging surface (3).
2. The aluminum alloy extrusion die of claim 1, wherein: the opening section of the connecting cavity (13) on the discharging surface (3) comprises a rectangular connecting part (131), two trapezoidal supporting parts (132) and two rectangular breaking parts (133); the two supporting parts (132) are respectively positioned at two ends of the connecting part (131) along the length direction, and the lower bottom edges of the two trapezoidal supporting parts (132) are superposed with the wide edges of the connecting part (131); the wide sides of the two breaking parts (133) are respectively overlapped with the upper bottom sides of the two supporting parts (132).
3. The aluminum alloy extrusion die of claim 1, wherein: two guide holes (21) and two threaded holes (22) are formed in the feeding surface (2), the two guide holes (21) and the two bolt holes are respectively located on two diameters of the feeding surface (2), and the two guide holes (21) and the two bolt holes are not respectively located on four corners of the same square on the feeding surface (2).
4. The aluminum alloy extrusion die of claim 1, wherein: two one end that extrusion chamber (11) are close to feeding surface (2) all is equipped with pre-extrusion chamber (12), two the area of the external profile in pre-extrusion chamber (12) all is greater than the area of the external profile in two extrusion chambers (11), the one end in pre-extrusion chamber (12) is connected with extrusion chamber (11) and forms step face (121), and the other end runs through feeding surface (2).
5. The aluminum alloy extrusion die of claim 4, wherein: and fan-shaped protrusions (112) which are formed by extruding semicircular grooves on the aluminum alloy section are arranged at the two ends of the connection part of the extrusion cavity (11) and the connection cavity (13) along the width direction.
6. The aluminum alloy extrusion die of claim 1, wherein: two extrusion chamber (11) all are equipped with the round chamfer with feeding face (2) and play charge level (3) junction, and the chamfer radius of round chamfer is 2 mm.
7. The aluminum alloy extrusion die of claim 1, wherein: two kidney-shaped key grooves (23) are formed in the feeding surface (2).
8. The aluminum alloy extrusion die of claim 7, wherein: the depth of the two kidney-shaped key grooves (23) is 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114851.XU CN211539020U (en) | 2019-11-30 | 2019-11-30 | Aluminum alloy extrusion die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922114851.XU CN211539020U (en) | 2019-11-30 | 2019-11-30 | Aluminum alloy extrusion die |
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| CN211539020U true CN211539020U (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792150A (en) * | 2020-12-23 | 2021-05-14 | 东北轻合金有限责任公司 | Extrusion method of 7150 alloy profile |
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- 2019-11-30 CN CN201922114851.XU patent/CN211539020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792150A (en) * | 2020-12-23 | 2021-05-14 | 东北轻合金有限责任公司 | Extrusion method of 7150 alloy profile |
| CN112792150B (en) * | 2020-12-23 | 2023-04-07 | 东北轻合金有限责任公司 | Extrusion method of 7150 alloy profile |
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