CN218015715U

CN218015715U - Die-casting die for forming motor end cover

Info

Publication number: CN218015715U
Application number: CN202222374241.5U
Authority: CN
Inventors: 彭家辉
Original assignee: Ningbo Lianyou Precision Manufacturing Co ltd
Current assignee: Ningbo Lianyou Precision Manufacturing Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-12-13
Anticipated expiration: 2032-09-05

Abstract

The application relates to a die casting die for shaping motor end cover, including relative last framed and lower framed that sets up, it is close to go up framed the mold core is provided with of one side of framed down, framed down is close to go up framed one side be provided with go up the relative lower mold core of mold core, it is provided with the last die cavity that is used for shaping motor end cover to go up the mold core, the lower die core is provided with the lower die cavity that is used for shaping motor end cover, go up the mold core in go up and be provided with the shaping pole in the die cavity, the shaping pole sets up to lower mold core direction, the mold core down in the confession has been seted up in the die cavity down becomes pole male jack. This application has and has reduced the deckle edge risk in the through-hole, and then has reduced secondary operation's probability.

Description

Die-casting die for forming motor end cover

Technical Field

The utility model belongs to the technical field of the mould technique and specifically relates to a die casting die for shaping motor end cover is related to.

Background

Die casting is a method of casting liquid forging, and die casting is a process performed on a die casting and forging machine. During die casting, molten metal is filled into a cavity (a pressure chamber cavity) of a die casting die on a die casting die forging machine, and pressure forging is performed along with the cooling process of the molten metal, so that the mechanical property of a metal blank is improved, and a die casting product is obtained.

There is a motor end cover, including end cover body 8, has seted up a plurality of through-holes 81 on the end cover body 8.

In the existing mold, a forming rod is generally arranged on a lower mold core, the forming rod is abutted to one end of the upper mold core close to the lower mold core, and metal liquid flows into a cavity and then passes through the forming rod, so that a through hole 81 is formed.

In view of the above-mentioned related art, the inventor has caused that the forming rod cannot completely abut against the surface of the upper mold core due to insufficient fitting accuracy between the upper mold core and the lower mold, and caused that molten metal may flow into a gap between the forming rod and the upper mold core, thereby causing burrs to occur and blocking the through hole 81, and thus secondary processing is required to remove the burrs.

SUMMERY OF THE UTILITY MODEL

In order to reduce the probability of secondary processing, the application provides a die casting die for forming a motor end cover.

The application provides a die casting die for shaping motor end cover adopts following technical scheme:

the utility model provides a die casting die for shaping motor end cover, is including relative last framed and the lower framed that sets up, it is close to go up framed be provided with the mold core down of one side of framed, it is close to down framed one side be provided with go up the relative lower mold core of mold core, it is provided with the last die cavity that is used for shaping motor end cover to go up the mold core, the lower die core is provided with the lower die cavity that is used for shaping motor end cover, go up the mold core in it is provided with the shaping pole to go up the die cavity, the shaping pole sets up to the mold core direction down, the mold core down in the confession has been seted up in the die cavity down shaping pole male jack.

Through adopting above-mentioned technical scheme, through setting up the shaping pole at last die cavity, and offer the jack that supplies shaping pole male in die cavity down, when the molten metal flow goes into the die cavity, can bypass the shaping pole, form the through-hole, reduced the risk that forms the overlap in the through-hole, and then reduced secondary operation's probability.

Optionally, the upper die core is provided with a mounting hole, and the forming rod is inserted into the mounting hole in an interference manner.

Through adopting above-mentioned technical scheme, when the mould was used in a large number, the risk that the shaping pole probably produced wearing and tearing leads to the dimensional accuracy of through-hole unqualified. According to the scheme, the mounting hole is formed in the upper mold core, the forming rod is inserted in the mounting hole in an interference mode, when the forming rod is seriously abraded, the forming rod can be detached and replaced by a new forming rod for use, the whole upper mold core does not need to be replaced again, the cost is reduced, and the size precision of the through hole is guaranteed.

Optionally, a positioning block is arranged at one end, away from the lower mold core, of the forming rod, and a positioning groove for the positioning block to insert is formed in one side, away from the lower mold core, of the upper mold core.

Through adopting above-mentioned technical scheme, offer through keeping away from one side of lower mold core at last mold core and supply locating piece male constant head tank, when locating piece butt constant head tank bottom, the installation of shaping pole targets in place, has made things convenient for the installation of shaping pole.

Optionally, a runner for molten metal to flow into is provided at one side of the lower mold core close to the upper mold core, the runner includes a first runner and a second runner, the first runner and the second runner are communicated with each other, the first runner and the lower cavity are communicated with each other, and the second runner and the lower cavity are communicated with each other.

Through adopting above-mentioned technical scheme, through setting up first runner and second runner, can follow the different positions feeding of die cavity, make the runner get into the die cavity inside more even to promote the shaping quality of motor end cover.

Optionally, a plurality of overflow grooves are formed in one side, close to the upper mold core, of the lower mold core, and the overflow grooves are circumferentially arranged along the lower cavity.

By adopting the technical scheme, the overflow groove is formed, so that redundant molten metal can be discharged, the flowing direction of the molten metal is improved, the temperature of the die is kept, and the casting quality of the motor end cover is improved.

Optionally, a plurality of air outlet grooves are formed in one side, close to the upper mold core, of the lower mold core, and the air outlet grooves are communicated with the overflow groove.

Through adopting above-mentioned technical scheme, the molten metal is impressed the die cavity from the runner during production, has the air in the die cavity this moment in addition the material temperature is high, can appear gas expansion, if not in time exhaust, the motor end cover can be because of gas occupies die cavity space and the defect such as material appears removing. This scheme is through setting up the gas outlet groove, and after the die cavity was impressed to the molten metal, with gas from the gas outlet groove discharge external world to reduce the risk that the motor end cover lacks the material.

Optionally, the lower mold core is provided with a sliding hole in the groove wall of the overflow groove, and a first ejector rod is arranged in the sliding hole in a sliding manner.

By adopting the technical scheme, when the die is opened, the ejector pin ejects the motor end cover, and a slag ladle in the overflow groove can be directly smashed on the motor end cover, so that scratches appear on the surface of the motor end cover. According to the scheme, the ejector pin is arranged at the bottom of the overflow groove, the ejector pin ejects the motor end cover, and meanwhile, the slag ladle is also ejected, so that the risk that the slag ladle drops to the motor end cover is reduced, and the risk that scratches appear on the surface of the motor end cover is reduced.

Optionally, the feed inlets of the first runner and the second runner are provided with guide surfaces.

Through adopting above-mentioned technical scheme, the spigot surface can carry out the water conservancy diversion to the molten metal on the one hand, and on the other hand has reduced the thickness of first runner and second runner and die cavity junction to reduce the thickness between motor end cover and the runner waste material, made things convenient for breaking off with the fingers and thumb between follow-up runner waste material and the motor end cover.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a die-casting die for forming a motor end cover is provided with a forming rod, and a lower die core is provided with a jack for the forming rod to pass through, so that metal liquid can bypass the forming rod to form a through hole when flowing into a die cavity, the risk of forming flash in the through hole is reduced, and the probability of secondary processing is further reduced;

2. a die-casting die for forming a motor end cover is provided with a mounting hole, and a forming rod is inserted in the mounting hole in an interference manner, so that the forming rod can be detached and replaced, the cost is reduced, and the dimensional precision of a through hole is ensured;

3. a die casting die for forming a motor end cover enables a runner to enter a cavity more uniformly through arranging a first runner and a second runner, and therefore forming quality of the motor end cover is improved.

Drawings

FIG. 1 is a schematic structural view of a die casting mold;

FIG. 2 is an exploded view of the die casting mold;

FIG. 3 is a schematic view of an exploded structure of the upper mold frame and the upper mold core;

FIG. 4 is a schematic structural view of a lower mold core;

FIG. 5 is a schematic structural view of an upper mold core;

fig. 6 is a schematic structural view of a motor end cover.

Description of reference numerals:

1. putting a mold frame; 11. a first caulking groove; 2. a lower mold frame; 21. a second caulking groove; 3. an upper mold core; 31. an upper cavity; 311. mounting holes; 312. positioning a groove; 4. a lower mold core; 41. a lower cavity; 411. a first flow passage; 412. a second flow passage; 413. a jack; 414. an overflow trough; 415. an air outlet groove; 416. connecting holes; 417. a sliding hole; 5. forming a rod; 51. positioning a block; 6. a first ejector rod; 7. a second ejector rod; 8. an end cap body; 81. and a through hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a die casting die for shaping motor end cover.

Referring to fig. 1, 2 and 3, a die casting mold for molding a motor end cover includes an upper mold frame 1, a lower mold frame 2, an upper mold core 3 and a lower mold core 4. Go up framed 1 and lower framed 2 relative setting, go up framed 1 and have seted up first caulking groove 11 near one side of lower framed 2, go up the first caulking groove 11 of mould core 3 embedding. One side of the lower die frame 2 close to the upper die frame 1 is provided with a second caulking groove 21, and the lower die core 4 is embedded into the second caulking groove 21. An upper cavity 31 is formed in one side, close to the lower mold core 4, of the upper mold core 3, and a lower cavity 41 matched with the upper cavity 31 is formed in one side, close to the upper mold core 3, of the lower mold core 4. And the molten metal flows into the upper cavity 31 and the lower cavity 41, and the motor end cover is formed after cooling.

Referring to fig. 4, a first flow passage 411 and a second flow passage 412 are opened at one side of the lower mold core 4 close to the upper mold core 3, and the first flow passage 411 and the second flow passage 412 are communicated with each other. The end of the first flow passage 411 away from the connection with the second flow passage 412 is communicated with the lower mold cavity 41, and the end of the second flow passage 412 away from the connection with the first flow passage 411 is communicated with the lower mold cavity 41. The first flow channel 411 and the second flow channel 412 feed from different directions of the lower cavity 41 at the same time, so that the flow channels enter the upper cavity 31 and the lower cavity 41 more uniformly, and the forming quality of the motor end cover is improved. The feed inlet that first runner 411 and second runner 412 are close to lower die cavity 41 is provided with the spigot surface that is the slope form, through setting up the spigot surface, has reduced the thickness of junction between shaping back runner waste material and the motor end cover, has made things convenient for follow-up unloading, and the spigot surface carries out the water conservancy diversion to the molten metal, covers the flow direction of molten metal to promote the foundry goods quality of motor end cover.

Referring to fig. 5, a mounting hole 311 is formed in one side of the upper mold core 3 away from the lower mold core 4, the mounting hole 311 is formed along the thickness direction of the upper mold core 3, and the mounting hole 311 penetrates through the other side wall of the upper mold core 3 and is communicated with the upper cavity 31. The forming rod 5 is inserted into the mounting hole 311 in an interference manner, and the forming rod 5 penetrates through the upper mold core 3 and extends towards the lower mold core 4. The lower mold core 4 has an insertion hole 413 at the bottom of the lower mold cavity 41 for inserting the forming rod 5. When the upper die frame 1 and the lower die frame 2 are closed, the upper die core 3 and the lower die core 4 are abutted against each other, the forming rod 5 is inserted into the insertion hole 413 along with the closing of the dies, at the moment, the molten metal flows into the upper die cavity 31 and the lower die cavity 41, and the molten metal bypasses the forming rod 5, so that a through hole on the motor end cover is formed. And because the forming rod 5 is inserted into the insertion hole 413, no gap exists between the forming rod 5 and the lower die cavity 41, and molten metal cannot flow into the gap to generate flash, so that the risk of secondary processing is reduced.

The one end that the shaping pole 5 kept away from the spliced eye is provided with the locating piece 51 coaxially, and the one side that goes away from lower mould frame 2 of last mould frame 1 is seted up and is supplied the male constant head tank 312 of locating piece 51. During assembly, after the positioning block 51 is inserted into the bottom of the abutting positioning groove 312, the installation of the forming rod 5 is finished, and the height of the forming rod 5 does not need to be manually adjusted, so that the installation of the forming rod 5 is facilitated.

Referring to fig. 4, a plurality of overflow grooves 414 are formed on one side of the lower mold core 4 close to the upper mold core 3, and the overflow grooves 414 are circumferentially distributed at intervals along the lower cavity 41. By arranging the plurality of overflow grooves 414 in the circumferential direction of the lower cavity 41, redundant molten metal can be uniformly discharged from the circumferential direction of the lower cavity 41, the flowing direction of the molten metal is improved, the temperature of the die is kept, and the casting quality of the motor end cover is improved.

The lower mold core 4 is provided with an air outlet groove 415 on the side wall of the overflow groove 414, the air outlet groove 415 extends in the direction away from the lower cavity 41, and the air outlet groove 415 penetrates through the side wall of the lower mold core 4 to communicate with the outside. By providing the air outlet groove 415, when the molten metal is poured into the upper cavity 31 and the lower cavity 41 from the runner, the air in the upper cavity 31 and the lower cavity 41 is squeezed, and the air in the upper cavity 31 and the lower cavity 41 is discharged to the outside from the air outlet groove 415. The risk that the motor end cover lacks materials due to the fact that the air blocks the cavity and lacks materials is reduced.

Referring to fig. 4, the lower mold core 4 is provided with a plurality of connecting holes 416 at the bottom of the lower mold cavity 41, the connecting holes 416 are arranged along the thickness direction of the lower mold core 4, and the first push rod 6 is slidably arranged in the connecting holes 416. When the die is opened, the first ejector rod 6 slides towards the upper die core 3, so that the motor end cover is ejected out, and the blanking of the motor end cover is completed.

The lower die core 4 is provided with a plurality of sliding holes 417 on the groove wall of the overflow groove 414, the sliding holes 417 are arranged along the thickness direction of the lower die core 4, and the second ejector rod 7 is arranged in the sliding holes 417 in a sliding manner. When the die is opened, the second ejector rod 7 slides towards the upper die core 3, so that the slag ladle formed in the overflow groove 414 is ejected together with the motor end cover, and the risk that the slag ladle falls off and is hit on the motor end cover so as to scratch the surface of the motor end cover is avoided.

The implementation principle of the die-casting die for molding the motor end cover is as follows: when the die is closed, the lower die frame 2 moves towards the upper die frame 1, and the lower die frame 2 drives the lower die core 4 to move towards the upper die core 3. The upper mold core 3 and the lower mold core 4 are mutually abutted, the forming rod 5 is inserted into the insertion hole 413, the molten metal flows into the upper cavity 31 and the lower cavity 41 from the first flow passage 411 and the second flow passage 412 to form a motor end cover, the molten metal avoids the forming rod 5 due to the existence of the forming rod 5, and therefore a through hole is formed in the motor end cover, the forming rod 5 is inserted into the insertion hole 413, no gap exists between the cavity bottoms of the forming rod 5 and the lower cavity 41, the molten metal cannot flow into the insertion hole 413, the generation of burrs is reduced, and the probability of secondary processing is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a die casting die for shaping motor end cover which characterized in that: including relative last framed (1) and lower framed (2) that sets up, go up framed (1) and be close to die core (3) are provided with of one side of lower framed (2), lower framed (2) are close to go up framed (1) one side be provided with go up die core (3) relative lower die core (4), it is provided with last die cavity (31) that are used for the shaping motor end cover to go up die core (3), lower die core (4) are provided with lower die cavity (41) that are used for the shaping motor end cover, go up die core (3) in be provided with shaping pole (5) in last die cavity (31), shaping pole (5) are to die core (4) orientation setting down, lower die core (4) in offer the confession in lower die cavity (41) shaping pole (5) male jack (413).

2. The die-casting mold for molding the motor end cover as claimed in claim 1, wherein: the upper mold core (3) is provided with a mounting hole (311), and the forming rod (5) is inserted in the mounting hole (311) in an interference manner.

3. The die-casting mold for molding the motor end cover as claimed in claim 1, wherein: one end of the forming rod (5) far away from the lower mold core (4) is provided with a positioning block (51), and one side of the upper mold core (3) far away from the lower mold core (4) is provided with a positioning groove (312) for inserting the positioning block (51).

4. The die-casting die for forming the motor end cover as claimed in claim 1, wherein: one side, close to the upper mold core (3), of the lower mold core (4) is provided with a runner for molten metal to flow in, the runner comprises a first runner (411) and a second runner (412), the first runner (411) is communicated with the lower cavity (41), and the second runner (412) is communicated with the lower cavity (41).

5. The die-casting mold for molding the motor end cover as claimed in claim 1, wherein: a plurality of overflow grooves (414) are formed in one side, close to the upper mold core (3), of the lower mold core (4), and the overflow grooves (414) are circumferentially arranged along the lower mold cavity (41).

6. The die-casting mold for molding the motor end cover as claimed in claim 5, wherein: a plurality of air outlet grooves (415) are formed in one side, close to the upper mold core (3), of the lower mold core (4), and the air outlet grooves (415) are communicated with the overflow groove (414).

7. The die-casting mold for molding the motor end cover as claimed in claim 5, wherein: the lower mold core (4) is provided with a sliding hole (417) on the groove wall of the overflow groove (414), and a first ejector rod (6) is arranged in the sliding hole (417) in a sliding manner.

8. The die-casting die for forming the motor end cover as claimed in claim 4, wherein: the feeding ports of the first flow passage (411) and the second flow passage (412) are provided with guide surfaces.