CN216370115U - Aluminum alloy low pressure casting bell housing mould with red copper inserts - Google Patents

Abstract

The utility model discloses an aluminum alloy low-pressure casting flywheel casing die with red copper inserts, which comprises an upper die and a lower die, wherein mounting grooves are formed in two ends of the interior of the lower die, the red copper inserts are slidably mounted in the mounting grooves, sealing grooves are formed in two ends of the interior of the lower die, one side, close to the red copper inserts, of each sealing groove is communicated with an annular groove, a sealing ring is fixedly mounted in each annular groove, an extrusion column is sleeved in each sealing groove, an extrusion plate is fixedly mounted on one side, close to the red copper inserts, of each extrusion column, and a fixing plate is fixedly mounted on one side, far away from the extrusion plates, of each extrusion column. Through the red copper insert that sets up, set up inside the mould with the red copper insert, in the casting process, aluminium liquid and copper billet upper plane contact play quick cooling effect for heat conduction speed, reduce mould local temperature, make foundry goods shoulder blade department crystalline grain refine, the tissue is fine and close, the dendritic crystal interval diminishes, and thermal treatment mechanical properties improves, can satisfy the customer's requirement completely.

Description

Aluminum alloy low pressure casting bell housing mould with red copper inserts

Technical Field

The utility model belongs to the technical field of low-pressure casting flywheel housing molds, and particularly relates to an aluminum alloy low-pressure casting flywheel housing mold with a red copper insert.

Background

The flywheel shell is used as one of key parts of an automobile engine, is arranged between the engine and a gearbox, is externally connected with a crank case, a starter and an oil pan, is internally provided with a flywheel assembly, plays a role in connecting a machine body, protecting and carrying, and needs to use a mold in the process of manufacturing the flywheel shell, so that the flywheel shell is produced.

The shoulder blade surface of the conventional flywheel shell cast by ZL101A aluminum alloy is closer to the sprue, the temperature of a normal production mold is 460-480 ℃, the temperature is higher, the casting is cooled slowly, the detection dendrite spacing is 50-60 mu m, and after the T6 product is subjected to heat treatment, the sampling detection performance of the body is lower, and the part is the part requiring mechanical property detection. The performance is low, the requirement of customers cannot be met, the increase of air cooling or water cooling of the die is troublesome, and meanwhile, the cost is increased.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an aluminum alloy low-pressure casting flywheel shell mold with a red copper insert, and solves the problems that the temperature required for manufacturing the flywheel shell mold is higher, but the casting is slowly cooled, the performance is lower, the requirements of customers cannot be met, the increase of air cooling and water cooling of the mold is troublesome, and the cost is increased.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an aluminum alloy low pressure casting bell housing mould with red copper is inserted, includes mould and bed die, the mounting groove has all been seted up at the inside both ends of bed die, the inside slidable mounting of mounting groove has red copper to insert, the seal groove has all been seted up at the inside both ends of bed die, one side intercommunication that the seal groove is close to red copper and inserts has the ring channel, the inside fixed mounting of ring channel has the sealing washer, the extrusion post has been cup jointed to the inside of seal groove, one side fixed mounting that the extrusion post is close to red copper and inserts has the stripper plate, one side fixed mounting that the stripper plate is kept away from to the extrusion post has the fixed plate.

Preferably, an injection hole is formed in the upper die, a first runner is communicated with both sides of the injection hole, and a second runner is formed in the lower die.

Through adopting above-mentioned technical scheme, the advantage lies in, pours the inside of water to first watering and second watering with the injection hole injection to accomplish the casting of bell housing.

Preferably, the top of the mounting groove is communicated with the second pouring channel.

By adopting the technical scheme, the method has the advantage that the aluminum liquid can pass through the upper plane of the red copper insert.

Preferably, the thickness of the red copper insert is 20 mm.

By adopting the technical scheme, the method has the advantage of ensuring the complete performance of the red copper insert.

Preferably, the sealing groove is communicated with the mounting groove.

Through adopting above-mentioned technical scheme, the advantage lies in, makes red copper insert can install in the inside of mounting groove.

Preferably, the two ends of the inner part of the fixing plate are both sleeved with fixing bolts, and threaded holes matched with the specifications and the sizes of the fixing bolts are formed in the lower die.

Through adopting above-mentioned technical scheme, the advantage lies in, utilizes fixing bolt with the fixed plate, the position of extrusion post and stripper plate fixed, makes between stripper plate and sealing washer and the red copper insert zonulae occludens, guarantees the leakproofness of the device.

Preferably, the both ends of going up the mould bottom are equal fixed mounting have the gag lever post, the spacing groove has all been seted up at the inside both ends of bed die, the gauge size looks adaptation of gag lever post and spacing groove, and the position is corresponding.

Through adopting above-mentioned technical scheme, the advantage lies in, during the compound die, will go up the inside that two gag lever posts of mould bottom inserted two corresponding spacing grooves, then make mould and bed die compound die, setting up of gag lever post and spacing groove has guaranteed can be complete carry out the compound die between mould and the bed die, avoids taking place the skew, is favorable to improving the accuracy of casting bell housing.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the red copper insert that sets up, insert the setting with red copper inside the mould, in the casting process, aluminium liquid and copper billet upper plane contact, because the copper billet heat conductivity is good, play quick cooling effect, accelerate heat conduction speed, reduce mould local temperature, promote product mechanical properties, make foundry goods shoulder blade department crystalline grain refine, the tissue is fine and close, the dendritic crystal interval diminishes, thermal treatment mechanical properties improves, moreover, the steam generator is simple in structure, mold processing is convenient, the cooling effect is reliable and stable, product dendritic crystal interval reduces, T6 thermal treatment mechanical properties can satisfy customer's requirement completely, it is higher to have solved the temperature that present preparation flywheel shell mould needs, but the foundry goods cooling is slow, the performance is on the low side, can' T satisfy customer's requirement, the mould increases air cooling and water-cooling is more troublesome, increase cost's problem simultaneously.

2. Through the seal groove that sets up, the ring channel, the sealing washer, the extrusion post, the stripper plate, fixed plate and fixing bolt, after inserting red copper and installing to the bed die inside, through inserting the stripper plate and red copper and the sealing washer contacts, then under fixing bolt's effect, make the stripper plate and red copper insert between the in close contact with, extrude the sealing washer simultaneously, thereby the device's leakproofness has been guaranteed, avoid at the in-process of pouring into aluminium liquid, it flows through mounting groove and seal groove to have aluminium liquid.

3. Through the gag lever post and the spacing groove that set up, during the compound die, will go up the inside that two gag lever posts of mould bottom inserted two corresponding spacing grooves, then make mould and bed die compound die, the setting up of gag lever post and spacing groove has guaranteed can be complete carry out the compound die between mould and the bed die, avoids taking place the skew, is favorable to improving the accuracy of casting bell housing.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the internal cross-section of the present invention;

FIG. 3 is a partial cross-sectional structural schematic of the present invention;

fig. 4 is a schematic perspective view of the red copper insert of the present invention.

In the figure: 1. an upper die; 2. a lower die; 3. an injection hole; 4. a first runner; 5. mounting grooves; 6. a red copper insert; 7. a sealing groove; 8. an annular groove; 9. a seal ring; 10. extruding the column; 11. a pressing plate; 12. a fixing plate; 13. fixing the bolt; 14. a limiting rod; 15. a limiting groove; 16. a second runner.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-4, the present invention provides a technical solution: an aluminum alloy low-pressure casting flywheel housing mold with a red copper insert comprises an upper mold 1 and a lower mold 2, wherein an injection hole 3 is formed in the upper mold 1, two sides of the injection hole 3 are communicated with a first runner 4, a second runner 16 is formed in the lower mold 2, two ends of the inner part of the lower mold 2 are provided with mounting grooves 5, the top of each mounting groove 5 is communicated with the second runner 16, a red copper insert 6 is slidably mounted in each mounting groove 5, the thickness of each red copper insert 6 is 20mm, two ends of the inner part of the lower mold 2 are provided with sealing grooves 7, each sealing groove 7 is communicated with each mounting groove 5, one side, close to each red copper insert 6, of each sealing groove 7 is communicated with a ring groove 8, a sealing ring 9 is fixedly mounted in each ring groove 8, an extrusion column 10 is sleeved in each sealing groove 7, an extrusion plate 11 is fixedly mounted on one side, close to each extrusion column 10, close to each extrusion plate 11, a fixing plate 12 is fixedly mounted on one side, far away from each extrusion column 10, fixing bolt 13 has all been cup jointed at the inside both ends of fixed plate 12, and the screw hole with 13 specification and dimension looks adaptations of fixing bolt is seted up to the inside of bed die 2.

In the embodiment, when the red copper insert 6 is installed, the red copper insert 6 is inserted into the installation groove 5 through the seal groove 7, the red copper insert 6 is pushed into the installation groove 5 until the red copper insert 6 cannot move, then the extrusion column 10 and the extrusion plate 11 are inserted into the seal groove 7, the central part of the extrusion plate 11 is in contact with the red copper insert 6, the edge of the extrusion plate 11 is in contact with the seal ring 9, then the fixing bolts 13 are inserted into the two ends of the fixing plate 12, the fixing bolts 13 are inserted into the corresponding threaded holes, the fixing bolts 13 are screwed, the extrusion plate 11 is ensured to be tightly attached to the red copper insert 6, the extrusion plate 11 extrudes the seal ring 9, thereby ensuring the sealing performance of the device, avoiding the outflow of aluminum liquid through the installation groove 5 and the seal groove 7 in the casting process, after the installation of the two red copper inserts 6 is completed, then the upper die 1 and the lower die 2 are closed, after the upper die 1 and the lower die 2 are closed, aluminum liquid is poured into the upper die 1 through an injection hole 3, the aluminum liquid flows into a first pouring channel 4 and then flows into a second pouring channel 16, so as to complete the casting of the flywheel shell, in the aluminum casting process, the aluminum liquid passes through the upper plane of a red copper insert 6 to play a role in rapid cooling, the device cuts off the bottom surface line at the shoulder blade surface of the die through the arranged red copper insert 6, and changes the bottom surface line into the red copper insert 6 with the thickness of 20mm, the red copper insert 6 is arranged in the die, in the casting process, the aluminum liquid is contacted with the upper plane of a copper block, as the heat conductivity coefficient of copper is obviously higher than that of iron, the heat conductivity is good, the temperature at the shoulder blade surface is quickly reduced, the cooling speed of the aluminum liquid is accelerated, the temperature of the normal production part is controlled at 420 ℃, and the dendrite spacing of the product can be controlled at 40-45 mu m, the tensile strength 295 plus 305Mpa, the yield strength 264 plus 267Mpa and the elongation 5-5.5 percent of the T6 after heat treatment can completely meet the requirements of customers, after the red copper insert 6 is installed in the lower die 2, the extrusion plate 11 is in contact with the red copper insert 6 and the sealing ring 9 through the arranged sealing groove 7, the annular groove 8, the sealing ring 9, the extrusion column 10, the extrusion plate 11, the fixing plate 12 and the fixing bolt 13, then the extrusion plate 11 is in close contact with the red copper insert 6 under the action of the fixing bolt 13, and the sealing ring 9 is extruded at the same time, so that the sealing performance of the device is ensured, and the aluminum liquid is prevented from flowing out through the installation groove 5 and the sealing groove 7 in the process of injecting the aluminum liquid.

Example two:

as shown in fig. 1-4, on the basis of the first embodiment, the present invention provides a technical solution: the equal fixed mounting in both ends of going up 1 bottom of mould has gag lever post 14, and spacing groove 15 has all been seted up at 2 inside both ends of bed die, and gag lever post 14 and 15 specification and dimension looks adaptations of spacing groove, and the position is corresponding.

In this embodiment, during the compound die, insert the inside of two corresponding spacing grooves 15 with two gag lever posts 14 of upper mould 1 bottom, then make upper mould 1 and 2 compound dies of bed die, the setting up of gag lever post 14 and spacing groove 15 has guaranteed can be complete carry out the compound die between upper mould 1 and the bed die 2, avoids taking place the skew, is favorable to improving the accuracy of casting flywheel shell.

The working principle and the using process of the utility model are as follows: when the red copper insert 6 is installed, the red copper insert 6 is inserted into the installation groove 5 through the seal groove 7, the red copper insert 6 is pushed into the installation groove 5 until the red copper insert 6 cannot move, then the extrusion column 10 and the extrusion plate 11 are inserted into the seal groove 7, the central part of the extrusion plate 11 is in contact with the red copper insert 6, the edge of the extrusion plate 11 is in contact with the seal ring 9, then the fixing bolts 13 are inserted into the two ends of the fixing plate 12, the fixing bolts 13 are inserted into the corresponding threaded holes, the fixing bolts 13 are screwed tightly, the insert extrusion plate 11 is ensured to be tightly attached to the red copper insert 6, the extrusion plate 11 extrudes the seal ring 9, thereby ensuring the sealing performance of the device, avoiding the outflow of aluminum liquid through the installation groove 5 and the seal groove 7 in the casting process, after the two red copper inserts 6 are installed, then the upper die 1 and the lower die 2 are closed, during die assembly, two limiting rods 14 at the bottom of an upper die 1 are inserted into the corresponding two limiting grooves 15, then the upper die 1 and a lower die 2 are assembled, the arrangement of the limiting rods 14 and the limiting grooves 15 ensures that the upper die 1 and the lower die 2 can be completely assembled, so that offset is avoided, after the upper die 1 and the lower die 2 are assembled, aluminum liquid is poured into the upper die 1 through an injection hole 3, the aluminum liquid flows into a first pouring channel 4 and then flows into a second pouring channel 16, so that casting of a flywheel shell is completed, during aluminum casting, the aluminum liquid passes through the upper plane of a red copper insert 6 to play a role in rapid cooling, and the red copper insert 6 is arranged inside the die through the arranged red copper insert 6, and during casting, the aluminum liquid is in contact with the upper plane of a copper block, and due to good thermal conductivity of the copper block, the rapid cooling effect is achieved, so that crystal grains at the scapular side of a casting are refined, Compact structure, small dendritic crystal spacing and improved heat treatment mechanical property, and can completely meet the requirements of customers.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an aluminum alloy low pressure casting bell housing mould with red copper inserts, includes mould (1) and bed die (2), its characterized in that: mounting groove (5) have all been seted up at the inside both ends of bed die (2), the inside slidable mounting of mounting groove (5) has red copper to insert (6), seal groove (7) have all been seted up at the inside both ends of bed die (2), one side intercommunication that seal groove (7) are close to red copper and insert (6) has ring channel (8), the inside fixed mounting of ring channel (8) has sealing washer (9), extrusion column (10) have been cup jointed to the inside of seal groove (7), one side fixed mounting that extrusion column (10) are close to red copper and insert (6) has stripper plate (11), one side fixed mounting that stripper plate (11) were kept away from in extrusion column (10) has fixed plate (12).

2. The aluminum alloy low-pressure casting flywheel casing die with the red copper insert as set forth in claim 1, wherein: an injection hole (3) is formed in the upper die (1), the two sides of the injection hole (3) are communicated with a first pouring gate (4), and a second pouring gate (16) is formed in the lower die (2).

3. The aluminum alloy low-pressure casting flywheel casing die with the red copper insert as claimed in claim 2, wherein: the top of the mounting groove (5) is communicated with a second pouring channel (16).

4. The aluminum alloy low-pressure casting flywheel casing die with the red copper insert as set forth in claim 1, wherein: the thickness of the red copper insert (6) is 20 mm.

5. The aluminum alloy low-pressure casting flywheel casing die with the red copper insert as set forth in claim 1, wherein: the sealing groove (7) is communicated with the mounting groove (5).

6. The aluminum alloy low-pressure casting flywheel casing die with the red copper insert as set forth in claim 1, wherein: fixing bolts (13) are sleeved at two ends of the inner part of the fixing plate (12), and threaded holes matched with the fixing bolts (13) in specification and size are formed in the lower die (2).

7. The aluminum alloy low-pressure casting flywheel casing die with the red copper insert as set forth in claim 1, wherein: the upper die is characterized in that limiting rods (14) are fixedly mounted at two ends of the bottom of the upper die (1), limiting grooves (15) are formed in two ends of the inner portion of the lower die (2), and the limiting rods (14) are matched with the limiting grooves (15) in specification and size and are corresponding in position.

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