CN211489075U - Extrusion die of new energy automobile water cooled machine shell - Google Patents
Extrusion die of new energy automobile water cooled machine shell Download PDFInfo
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- CN211489075U CN211489075U CN201921161791.0U CN201921161791U CN211489075U CN 211489075 U CN211489075 U CN 211489075U CN 201921161791 U CN201921161791 U CN 201921161791U CN 211489075 U CN211489075 U CN 211489075U
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Abstract
The utility model provides an extrusion die of new energy automobile water cooled machine shell, extrusion die are including the last mould that connects gradually, inlay ring, well mould and pad, going up the mould and evenly being formed with 8 diffluence holes, going up the mould and having 16 diffluence holes around the equipartition around the perforation on inlaying the ring at the big mold core of one side fixedly connected with in the mould in opposite directions, inlaying the ring and inserting to last the mould in, the reposition of redundant personnel bridge of inlaying the ring all is located the centre of each diffluence hole of last mould, inlays the ring and has a plurality of little mold cores in one side equipartition towards well mould. The utility model discloses be split type integrated configuration with last mould design in the mould, divide into the main part and inlay the ring, consequently can make former whole position that mould digit control machine tool processing can not go up all can unpack the independent processing apart, the position that needs the electrical machining on the big or small mold core has lacked a lot, has optimized the processing procedure of mould like this, has shortened the manufacturing cycle of mould to the cost has been practiced thrift, maintenance is convenient, and mould machining efficiency improves.
Description
Technical Field
The utility model belongs to the technical field of the aluminum alloy ex-trusions is made and specifically relates to an extrusion die of new energy automobile water cooled machine shell is related to.
Background
Along with the development of the aluminum profile industry, the application range of aluminum alloy metal products is wider and wider. At present, the cooling mode adopted by the motor is mainly water cooling and air cooling, the application of the water-cooled motor is wider, the main forming mode of the motor shell is extrusion forming, and the extruded aluminum alloy water-cooled motor shell has the advantages of light weight, high hardness and rapid heat dissipation, so the extruded aluminum alloy water-cooled motor shell is accepted by the industry. But there is certain difficulty to the manufacturing of mould, has a plurality of water-cooling channel on the motor casing, and every water-cooling channel all corresponds a mold core, and this design of reposition of redundant personnel hole, seam room die cavity has all increaseed the degree of difficulty in to processing is more a challenge, can not process to the traditional mould that water-cooling motor casing designed with a lot of local digit control machine tool when adding man-hour, and the design processing of mould can not be in place and can make production efficiency low, and extrusion section bar product quality scheduling problem not up to standard.
Disclosure of Invention
In view of this, the utility model aims at providing an aluminum alloy motor casing extrusion die convenient to processing, production efficiency is high has solved the problem that exists among the prior art.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an extrusion die of a water-cooled motor shell of a new energy automobile comprises an upper die, an embedding ring, a middle die and a pad which are connected in sequence, wherein n shunting holes are uniformly formed in the upper die, n is greater than 1, the upper die is fixedly connected with a large die core on one side opposite to the middle die, the n shunting holes are distributed around the large die core, a through hole is formed in the center of the embedding ring, 2n shunting holes are uniformly distributed on the embedding ring around the through hole, two adjacent shunting holes are shunting bridges, the large die core penetrates through the through hole of the embedding ring, the embedding ring is inserted into the upper die and is connected into a whole through a positioning pin, when the embedding ring is placed into the upper die, the shunting bridges of the embedding ring are all positioned in the middle of the shunting holes of the upper die, namely, each shunting hole of the upper die is divided into two, one side of the middle die is detachably and fixedly;
inlay the ring and having a plurality of little mold cores in the one side equipartition towards well mould, little mold core perpendicular to inlays the ring and sets up around perforating, little mold core is located and perforates and inlays between the reposition of redundant personnel hole of ring, well mould and the center department of pad all are equipped with the nib of equidimension and shape, little mold core and big mold core insert well mould and the die hole of pad jointly in, leave the clearance that forms the motor casing outer wall between little mold core and the nib, big mold core and little mold core leave the clearance that forms the motor casing inner wall.
Further, after the insert ring is inserted into the upper die, the end face of the large die core is flush with the end face of the small die core, and after the insert ring 2 is placed into the upper die, the end face of the outward side of the insert ring is flush with the end face of the upper die.
Furthermore, the small mold cores are 8, and n is 8.
Furthermore, the area of the shunting holes of the upper die is larger than that of the shunting holes of the inlaid ring.
Furthermore, a welding chamber is formed on one side of the middle die facing the upper die.
Furthermore, one side of the middle die is connected with the upper die through a bolt, and the other side of the middle die is connected with the pad through a bolt.
Compared with the prior art, an extrusion die of new energy automobile water cooled machine shell, following beneficial effect has: the upper die in the die is designed into a split type combined structure, and is divided into the main body and the inlaid ring, so that the positions which cannot be machined by the original integral upper die numerical control machine tool can be disassembled for independent machining, the positions which need to be machined by electricity on the large and small die cores are reduced, the machining process of the die is optimized, the manufacturing period of the die is shortened, the cost is saved, the maintenance is convenient, and the die machining efficiency is improved.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic perspective exploded view of the present invention;
FIG. 2 is a schematic view of the present invention after assembly;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic view of the insert ring after being snapped into the upper mold;
FIG. 5 is a schematic cross-sectional view taken vertically in FIG. 4;
FIG. 6 is a schematic structural diagram of a finished water-cooled motor casing after processing;
description of reference numerals:
1-upper mould; 2-ring inlaying; 3-middle mold; 4-pad; 5-a shunt hole; 6-a shunt bridge; 7-large mold core; 8-small mold core; 9-die hole; 10-welding chamber.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-5, an extrusion die of new energy automobile water cooled machine shell, including last mould 1, inlay ring 2, well mould 3 and the pad 4 that connects gradually, it evenly is formed with 8 diffluence holes 5 to go up mould 1, makes whole worker material reposition of redundant personnel earlier become 8 strands, and the worker material has a predeformation process at the extrusion initial stage, can prevent like this to produce very big pressure at the extrusion in-process, can play the effect of protection mould.
Go up mould 1 and mould 3 one side fixedly connected with big mold core 7 in opposite directions, 8 diffluence holes distribute around big mold core 7, inlay and be equipped with the perforation in the ring 2 center, inlay and have 16 diffluence holes 5 around the perforation on the ring 2, two adjacent diffluence holes 5 are the reposition of redundant personnel bridge 6, the area of reposition of redundant personnel hole 5 is directly proportional with the width of reposition of redundant personnel bridge 6.
The large mold core 7 penetrates through the through hole of the embedded ring 2, the embedded ring 2 is inserted into the upper mold 1 and is connected into a whole through the positioning pin, when the embedded ring 2 is placed into the upper mold 1, the shunt bridges 6 of the embedded ring 2 are positioned in the middle of the shunt holes 5 of the upper mold 1, namely, each shunt hole 5 of the upper mold 1 is divided into two shunt bridges, one side of the middle mold 3 is connected with the upper mold 1 through the bolt, and the other side of the middle mold 3 is connected with the pad 4 through the bolt;
After the insert ring 2 is inserted into the upper die 1, the end surface of the large die core 7 is flush with the end surface of the small die core 8, and after the insert ring 2 is placed into the upper die 1, the end surface of the outward side of the insert ring 2 is flush with the end surface of the upper die 1.
The area of the shunting holes 5 of the upper die 1 is larger than that of the shunting holes 5 of the insert ring 2.
And a welding chamber 10 is formed at one side of the middle die 3 facing the upper die 1, and is used for performing pressure welding on the shunted work material. The welded work material is extruded out through gaps among the large mold core 7, the small mold core 8 and the mold hole 9, and the shape of the water-cooled motor shell is finally obtained through a series of extrusion, flow distribution and welding processes, as shown in fig. 6.
An extrusion process utilizing the extrusion die comprises the following steps:
and step A, removing a surface oxidation layer of the aluminum alloy cast rod by using a peeling machine, wherein the size of the cast rod is phi 305 to 1200mm, preheating the treated aluminum alloy cast rod in a step heating mode, wherein the step heating mode is step heating, the step heating mode is heating in a power frequency heating furnace, an induction coil is arranged in the step heating mode, the head of the cast rod is heated to 480-plus-one temperature, the middle of the cast rod is heated to 460-plus-one temperature, and the tail of the cast rod is heated to 440-plus-one temperature. Then spraying carbon powder on the cast rod, so as to prevent the heated cast rod from being adhered to the die, and then putting the cast rod into an extrusion cylinder of an extruder;
step B, heating the extrusion die by a far-infrared heating furnace to reach the temperature requirement, wherein the heating temperature of the die is 470-490 ℃;
c, extruding the aluminum alloy cast rod to an extrusion die by an extrusion device of the extrusion cylinder at an extrusion speed of 1.8-2.5m/min, and extruding the aluminum alloy cast rod from the extrusion die to form an extruded part;
d, cutting off the head and the tail of the extrusion part, carrying out air cooling treatment, adding a high-pressure fan at an extrusion port, straightening the air-cooled extrusion part, and then cutting the extrusion part to length;
and E, performing heat treatment on the cut extrusion piece, wherein the mechanical property of the alloy can not meet the requirement after the alloy is extruded and quenched on line, so that the section bar needs to be subjected to artificial aging treatment, the aging temperature is 180 ℃, the aging time is 7 hours, and the condition requirement of T6 can be met. The formed section bar is subjected to mechanical test, the tensile strength is 233.95MPa, the yield strength is 202.07MPa, and the elongation is 13.5.
The split type upper die also has own advantages and disadvantages, the advantages are that the maintenance is convenient, the die machining efficiency is improved, and some cost is saved, the defects are that the upper die inlaying ring 2 has certain thickness, so that the thickness of the shunting bridge 6 of the upper die 1 is thinned, the connection strength of the large die core 7 and the upper die 1 is reduced, and the shunting bridge 6 is possibly broken due to overlarge pressure during extrusion. The existing solution to the problem is that the thickness of the split upper die is increased by 20mm compared with the thickness of the integral upper die, so that the strength of the shunt bridge is ensured, and some friction force can be reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides an extrusion die of new energy automobile water cooled machine shell which characterized in that: including last mould (1) that connects gradually, inlay ring (2), well mould (3) and pad (4), it evenly is formed with 8 reposition of redundant personnel holes (5) to go up mould (1), go up mould (1) and be in with well mould (3) one side fixedly connected with big mold core (7) in opposite directions, 8 reposition of redundant personnel holes distribute around big mold core (7), it is equipped with the perforation to inlay ring (2) center, it has 16 reposition of redundant personnel holes (5) to inlay around perforating on ring (2), two adjacent reposition of redundant personnel holes (5) are reposition of redundant personnel bridge (6), big mold core (7) pass the perforation of inlaying ring (2), inlay ring (2) and insert in last mould (1), and connect as an organic wholely through the locating pin, when inlaying ring (2) and putting into last mould (1), the reposition of redundant personnel bridge (6) of inlaying ring (2) all are located the centre of each reposition of redundant personnel hole (5) of last mould (1), it equallys divide into two to go up every reposition of redundant personnel hole, one side of the middle mold (3) is detachably and fixedly connected with the upper mold (1), and the other side of the middle mold (3) is detachably and fixedly connected with the pad (4);
inlay ring (2) and have a plurality of little mold cores (8) in one side equipartition towards well mould (3), little mold core (8) perpendicular to is inlayed ring (2) and is set up around the perforation, little mold core (8) are located and are punched and inlay between diffluent hole (5) of ring (2), the center department of well mould (3) and pad (4) all is equipped with nib (9) of the same size and shape, little mold core (8) and big mold core (7) insert in nib (9) of well mould (3) and pad (4) jointly, leave the clearance that forms the motor casing outer wall between little mold core (8) and nib (9), big mold core (7) and little mold core (8) leave the clearance that forms the motor casing inner wall;
after the insert ring (2) is inserted into the upper die (1), the end surface of the large die core (7) is flush with the end surface of the small die core (8), after the insert ring (2) is placed into the upper die (1), the end surface of the outward side of the insert ring (2) is flush with the end surface of the upper die (1), and the area of the shunting hole (5) of the upper die (1) is larger than that of the shunting hole (5) of the insert ring (2); well mould (3) are formed with welding chamber (10) towards one side of last mould (1), the one side of well mould (3) passes through bolted connection with last mould (1), and the opposite side of well mould (3) passes through bolted connection with pad (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921161791.0U CN211489075U (en) | 2019-07-23 | 2019-07-23 | Extrusion die of new energy automobile water cooled machine shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921161791.0U CN211489075U (en) | 2019-07-23 | 2019-07-23 | Extrusion die of new energy automobile water cooled machine shell |
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| CN211489075U true CN211489075U (en) | 2020-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238225A (en) * | 2019-07-23 | 2019-09-17 | 锐新昌轻合金（常熟）有限公司 | A kind of extrusion die and extrusion process of new-energy automobile water cooling motor housing |
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2019
- 2019-07-23 CN CN201921161791.0U patent/CN211489075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238225A (en) * | 2019-07-23 | 2019-09-17 | 锐新昌轻合金（常熟）有限公司 | A kind of extrusion die and extrusion process of new-energy automobile water cooling motor housing |
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