CN219852018U - Control arm casting mould - Google Patents

Abstract

The utility model provides a control arm casting mould, comprising: the upper die body and the lower die body are clamped to form a casting space, and the casting space comprises four forming inner cavities for forming two pairs of control arms; the gate is arranged on the lower die body and communicated with the end part of each forming inner cavity, and the distance between the gate and each forming inner cavity is equal; the slag collecting bag is arranged at one end of the forming inner cavity far away from the gate and is communicated with the forming inner cavity. The control arm casting mould provided by the utility model has the advantages that two pairs of control arms can be produced simultaneously, and the casting of one end of the forming inner cavity far away from the gate is prevented from being cooled prematurely.

Description

Control arm casting mould

Technical Field

The present disclosure relates generally to the field of automotive control processing technology, and in particular to a control arm casting mold.

Background

In the automotive field, casting molds are widely used, generally for producing chassis structural members, such as: knuckle, control arm, subframe, etc. The control arm is a guiding and force transferring component of an automobile suspension system, is made of aluminum alloy or ductile iron, and is made of aluminum alloy along with the development of light weight.

With the rapid development of modern industry, particularly automobile industry, the demand for control arms is also increasing, and the traditional control arm casting mould can only produce a pair of control arms at a time, so that for the survival of enterprises, the work output of casting equipment needs to be continuously improved, and the efficiency and the work output are maximized. Because of the high cost of casting equipment and the large amount of investment in a short period of time, a great deal of investment is brought to enterprises, so that the casting enterprises are most popular at present when single casting machines are lifted from casting molds.

Disclosure of Invention

In view of the above-described drawbacks or deficiencies of the prior art, it is desirable to provide a control arm casting mold that addresses the above-described problems.

The utility model provides a control arm casting mould, comprising:

the upper die body and the lower die body are provided with a casting space, wherein the casting space comprises four forming inner cavities for forming two pairs of control arms;

the inlet is arranged on the lower die body and communicated with the end part of each molding inner cavity, and the distance between the inlet and each molding inner cavity is equal;

the slag collecting bag is arranged at one end of the forming inner cavity far away from the inlet gate and is communicated with the forming inner cavity.

According to the technical scheme provided by the embodiment of the utility model, the upper die body is uniformly provided with a plurality of thimble assemblies, and each thimble assembly comprises a thimble, a limiting piece and a resetting assembly; the ejector pin one end runs through the upper die body to the shaping inner chamber or collect the cinder ladle, and with upper die body sliding connection, the locating part is used for limiting the ejector pin to the internal push down distance of shaping, reset assembly is used for to push down after the ejector pin resets.

According to the technical scheme provided by the embodiment of the utility model, the ejector pin is provided with the vent holes penetrating through the two ends.

According to the technical scheme provided by the embodiment of the utility model, the mounting groove is formed at one end of the thimble, which is close to the forming inner cavity, and ventilation particles are detachably arranged in the mounting groove.

According to the technical scheme provided by the embodiment of the utility model, the reset component comprises:

the supporting plate is clamped with one end, far away from the forming inner cavity, of the ejector pin;

the guide post is telescopic along the direction perpendicular to the mounting surface, one end of the guide post is fixedly connected with the upper die body, and the other end of the guide post is fixedly connected with the supporting plate; the mounting surface is used for preventing the lower die body;

the elastic piece is sleeved on the guide post, one end of the elastic piece is fixedly connected with the upper die body, and the other end of the elastic piece is fixedly connected with the supporting plate;

and the cover plate is detachably connected with one side, far away from the forming inner cavity, of the supporting plate.

According to the technical scheme provided by the embodiment of the utility model, the upper die body and the lower die body are respectively provided with a cooling water pipe, the cooling water pipes comprise a first circulation cavity and a second circulation cavity which is arranged on the outer peripheral side of the first circulation cavity and communicated with the first circulation cavity, the end part of the first circulation cavity is provided with a water inlet, and the end part of the second circulation cavity is provided with a water outlet.

According to the technical scheme provided by the embodiment of the utility model, the cooling water pipe is arranged along the direction parallel to the mounting surface, and the mounting surface is used for placing the lower die body.

According to the technical scheme provided by the embodiment of the utility model, the slag ladle comprises a storage part and a connecting part communicated with the storage part, and the connecting part is communicated with the forming inner cavity; the bottom surface of connecting portion with the bottom surface of storage portion is in the coplanar, the bottom surface of connecting portion is less than the bottom surface of storage portion is from the height of self top surface.

According to the technical scheme provided by the embodiment of the utility model, the bottom surface of the forming cavity and the bottom surface of the connecting part are in the same plane, the height between the bottom surface of the forming cavity 3 and the top surface of the forming cavity is between the height between the bottom surface of the storage part and the top surface of the forming cavity and the height between the bottom surface of the connecting part and the top surface of the forming cavity.

According to the technical scheme provided by the embodiment of the utility model, the upper die body is provided with the diversion cone at the position corresponding to the inlet.

Compared with the prior art, the utility model has the beneficial effects that: four forming inner cavities are formed between the upper die body and the lower die body, and a gate is arranged on the lower die body, so that molten metal is filled in the gate, and two pairs of control arms are formed in the four forming inner cavities; the positions of the pouring gates are arranged at equal distances from each forming inner cavity, so that molten metal filled through the pouring gates can enter four forming inner cavities at the same time, and the process of forming control arms in each forming inner cavity is ensured to be consistent; by arranging the slag collecting bag at one end of the forming inner cavity, which is far away from the inlet gate, the metal in a molten state which firstly enters the forming inner cavity can be stored, so that one end of the forming inner cavity, which is far away from the inlet gate, is preheated, and the molten state metal at one end, which is far away from the inlet gate, is prevented from cooling in advance to block the forming inner cavity; meanwhile, inclusions and scum in the forming inner cavity can be brought into the slag collecting bag through molten metal firstly entering the forming inner cavity, so that the effects of slag collection and blocking are achieved, and the yield of the control arm is improved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a control arm casting mold according to the present utility model;

FIG. 2 is a diagram of the positional relationship between the inlet and the molding cavity in a conventional control arm casting mold;

FIG. 3 is a diagram of the relationship between the gate and the molding cavity in the control arm casting mold of the present utility model;

FIG. 4 is a schematic view of a thimble structure;

FIG. 5 is a schematic view of the mounting structure of the thimble assembly;

FIG. 6 is a schematic side view of a slag ladle;

FIG. 7 is a schematic view of the internal structure of the cooling water pipe;

reference numerals: 1. an upper die body; 2. a lower die body; 3. forming an inner cavity; 4. pouring gate; 5. slag collecting bags; 51. a storage unit; 52. a connection part; 6. a thimble; 7. a vent hole; 8. ventilation particles; 9. a cooling water pipe; 10. a first flow-through chamber; 11. a second flow-through chamber; 12. feeding a runner; 13. a limiting piece; 14. a supporting plate; 15. an elastic member; 16. a guide post; 17. and a cover plate.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

In the conventional control arm casting mold, as shown in fig. 2, the position of the gate 4 is set in the middle of the molding cavity 3 and at equal distance from both ends of the molding cavity 3, and after molten metal is injected from the gate 4, the molten metal reaches both ends of the molding cavity 3. The control arm casting mould in the prior art can only produce a pair of control arms at a time, and has low production efficiency.

Referring to fig. 1, the present utility model provides a control arm casting mold, comprising:

a casting space is formed between the upper die body 1 and the lower die body 2, and comprises four forming inner cavities 3 for forming two pairs of control arms;

a gate 4, wherein the gate 4 is arranged on the lower die body 2 and is communicated with the end part of each molding inner cavity 3, and the gate 4 is equidistant from each molding inner cavity 3;

the slag collecting bag 5 is arranged at one end of the forming inner cavity 3, which is far away from the inlet gate 4, and is communicated with the forming inner cavity 3.

Specifically, the upper die body 1 and the lower die body 2 are detachably connected, and a maximum projection surface of the control arm on a mounting surface for placing the lower die body 2 is used as an interface between the upper die body 1 and the lower die body 2, so that the control arm is convenient to lift after molding. After the upper die body 1 and the lower die body 2 are assembled, four forming inner cavities 3 and inflow channels 12 are formed, the inflow channels 4 are communicated with the inflow channels 12, the inflow channels 12 are also communicated with four sub inflow channels, and each sub inflow channel is communicated with one forming inner cavity 3. The control arm casting die provided by the utility model can produce two pairs of control arms at one time, and has higher efficiency than the traditional control arm casting die.

The four molding cavities 3 are arranged in parallel, so that molten metal can be conveniently and simultaneously filled into the four molding cavities 3, the inlet channel 12 is arranged at the position between the four molding cavities 3 and at the same distance from the end part of each molding cavity 3, so that molten metal filled by the inlet channel 4 enters the four molding cavities 3 at the same time, and the forming process of the control arm in each molding cavity 3 is ensured to be consistent.

After the upper die body 1 and the lower die body 2 are assembled, a slag collecting bag 5 is further formed, and the slag collecting bag 5 is arranged at one end of the forming inner cavity 3, which is far away from the inlet gate 4. Compared with the prior art that the inlet 4 is arranged in the middle of the forming cavity 3, the inlet 4 is arranged at one end of the forming cavity 3, so that the molten metal to be filled initially flows through the whole forming cavity 3, and if no treatment is performed, the molten metal can be cooled in advance in the forming cavity 3 at one end far away from the inlet 4 after being filled, thereby causing the forming cavity 3 to be blocked. For this reason, the slag collecting bag 5 is arranged at one end of the forming inner cavity 3 far away from the inlet gate 4, and by arranging the slag collecting bag 5, the metal in the molten state entering the forming inner cavity 3 at first brings sundries and scum in the forming inner cavity 3 into the slag collecting bag 5, so that the yield is improved; meanwhile, the molten metal entering the slag collecting bag 5 can preheat one end of the forming inner cavity 3 far away from the inlet gate 3 due to a certain temperature, and the metal at one end of the forming inner cavity 3 far away from the inlet gate 4 can be prevented from being cooled in advance, so that the forming inner cavity 3 is prevented from being blocked; while also preventing backflow of molten metal.

Working principle: by forming four molding cavities 3 between the upper die body 1 and the lower die body 2 and providing a gate 4 on the lower die body 1, two pairs of control arms are formed in the four molding cavities 3 by filling molten metal from the gate 4; the positions of the pouring gates 4 are arranged at equal distances from each forming inner cavity 3, so that molten metal filled through the pouring gates 4 can enter four forming inner cavities 3 at the same time, and the process of forming control arms in each forming inner cavity 3 is ensured to be consistent; by arranging the slag collecting bag 5 at the end of the forming inner cavity 3 away from the inlet gate 4, and arranging the slag collecting bag 5 at the end of the forming inner cavity 3 away from the inlet gate 4, the metal in a molten state which firstly enters the forming inner cavity 3 can be stored, and then the end of the forming inner cavity 3 away from the inlet gate 4 is preheated, so that the molten state metal at the end away from the inlet gate 4 is prevented from being cooled in advance to block the forming inner cavity 3; meanwhile, inclusions and scum in the forming inner cavity 3 can be brought into the slag collecting bag 5 through molten metal firstly entering the forming inner cavity 3, so that the effects of slag collection and blocking are achieved, and the yield of the control arm is improved.

In a preferred embodiment, the upper die body 1 is uniformly provided with a plurality of thimble assemblies, and the thimble assemblies comprise a thimble 6, a limiting piece 13 and a reset assembly; the thimble 6 one end runs through last mould body 1 extremely shaping inner chamber 3 or collection cinder ladle 5, and with go up mould body 1 sliding connection, locating part 13 is used for the restriction thimble 6 to the distance of pushing down in the shaping inner chamber 3, reset assembly is used for to pushing down after thimble 6 resets.

Specifically, the upper die body 1 is provided with a plurality of through holes, the through holes are communicated with the top surface of the upper die body 1 to the forming inner cavity 3 or the slag ladle 5, one end of the thimble 6 extends into the through holes and is in sliding connection with the through holes, and the sliding direction is perpendicular to the mounting surface; the limiting piece 13 is arranged on the upper die body 1 and is used for preventing the thimble 6 from being damaged due to the fact that the pressing distance of the thimble 6 is too large; by arranging the reset assembly, after the ejector pins 6 are utilized to assist in demolding of the control arm, the ejector pins 6 can be reset, and the defect of the cast control arm caused by the fact that the ejector pins 6 are not reset in the next use is avoided.

In a preferred embodiment, the ejector pin 6 is provided with a vent hole 7 penetrating through two ends.

Specifically, the vent holes 7 are formed in the ejector pins 6, so that air in the forming inner cavity 3 can be discharged when molten metal is filled, and the molten metal can be added.

In a preferred embodiment, a mounting groove is formed at one end of the thimble 6 near the forming cavity 3, and an air particle 8 is detachably mounted in the mounting groove.

Specifically, the ventilation particles 8 are columnar and are provided with a plurality of through holes communicated with two ends; the side wall of the mounting groove can be clamped with the side wall of the ventilation particle 8, the ventilation particle 8 is used for keeping the thimble 6 smooth in ventilation, and the ventilation particle 8 needs to be replaced periodically.

In a preferred embodiment, the reset assembly comprises:

the supporting plate 14 is clamped with one end, far away from the forming inner cavity 3, of the thimble 6 by the supporting plate 14;

the guide post 16 is telescopic along the direction perpendicular to the mounting surface, one end of the guide post 16 is fixedly connected with the upper die body 1, and the other end of the guide post is fixedly connected with the supporting plate 14; the mounting surface is used for preventing the lower die body 2;

the elastic piece 15 is sleeved on the guide post 16, one end of the elastic piece 15 is fixedly connected with the upper die body 1, and the other end of the elastic piece is fixedly connected with the supporting plate 14;

and the cover plate 17 is detachably connected with one side of the supporting plate 14 away from the forming inner cavity 3.

Specifically, the cover 17 is disposed parallel to the mounting surface, and the cover 17 is provided with a through hole communicated with the vent hole 7, so as to avoid affecting the exhaust of the vent hole 7.

After the control arm is formed, the cover plate 17 is pressed to compress the elastic piece 15, and the cover plate 17 drives the supporting plate 14 and the thimble 6 to move towards the forming cavity 3 to abut against the formed control arm, so that the upper die body 1 is conveniently demoulded; after demolding, the cover plate 17 is loosened, and the elastic piece 15 stretches to drive the supporting plate 14 to move, so that the ejector pins 6 are driven to reset. Optionally, the elastic member 15 is a spring.

In a preferred embodiment, the upper die body 1 and the lower die body 2 are provided with cooling water pipes 9, the cooling water pipes 9 comprise a first circulation cavity 10, and a second circulation cavity 11 arranged on the outer peripheral side of the first circulation cavity 10 and communicated with the first circulation cavity 10, a water inlet is formed at the end part of the first circulation cavity 10, and a water outlet is formed at the end part of the second circulation cavity 11.

Specifically, the cooling water pipe 9 is a reciprocating hollow pipe, and is embedded in the upper die body 1 and the lower die body 2, so as to cool the upper die body 1 and the lower die body 2; the cooling water pipe 9 is not communicated with the forming inner cavity; the first circulation cavity 10 and the second circulation cavity 11 are coaxially arranged, cold water is filled after water inflow, and the cold water sequentially passes through the first circulation cavity 10 and the second circulation cavity 11 and finally is discharged from the water outlet, so that the upper die body 1 and the lower die body 2 are cooled, and the control arm forming is accelerated.

In a preferred embodiment, the cooling water pipe 9 is disposed in a direction parallel to a mounting surface for placing the lower die body 2.

Specifically, a plurality of cooling water pipes 9 are arranged on the upper die body 1 and the lower die body 2 and are uniformly distributed around the upper die body 1 and the lower die body 2, and optionally, four cooling water pipes 9 are respectively arranged on the upper die body 1 and the lower die body 2; the cooling water pipe 9 is communicated with external water supply equipment; by arranging the cooling water pipes 9 parallel to the mounting surface, on one hand, the acting area of a single water pipe can be increased, so that the number of the cooling water pipes 9 is reduced, and the cost is saved; on the other hand, interference with the cooling water pipe 9 when the lower die body 2 is placed on the mounting surface can be avoided.

In a preferred embodiment, the slag ladle 5 comprises a storage part 51 and a connecting part 52 communicated with the storage part 51, wherein the connecting part 52 is communicated with the forming cavity 3; the bottom surface of the connecting portion 52 is in the same plane with the bottom surface of the storage portion 51, and the height of the bottom surface of the connecting portion 52 from the top surface thereof is lower than the height of the bottom surface of the storage portion 51 from the top surface thereof.

Specifically, the metal in the molten state, which first enters the molding cavity 3, enters the storage portion 51 through the connection portion 52 for storage; the bottom surface of the connecting portion 52 is lower than the bottom surface of the storage portion 51, so that molten metal in the storage portion 51 can be fed into the forming cavity 3 through the connecting portion 52, and shrinkage defects are improved.

In a preferred embodiment, the bottom surface of the molding cavity 3 is in the same plane with the bottom surface of the connecting portion 52, and the height from the bottom surface of the molding cavity 3 to the top surface thereof is between the height from the bottom surface of the storage portion 51 to the top surface thereof and the height from the bottom surface of the connecting portion 52 to the top surface thereof.

Specifically, the inner channel height of the storage portion 51 is set to be 2-3 times of the inner channel height of the molding cavity 3, so that the molten metal in the storage portion 51 can be fed into the molding cavity 3.

In a preferred embodiment, a split cone is disposed on the upper die body 1 at a position corresponding to the inlet 4.

Specifically, the diverter cone is disposed in the inlet runner 12, the diverter cone is conical and the end portion of the diverter cone is disposed towards the inlet gate 4, and the diverter cone is used for diverting the molten metal filled by the inlet gate 4, so that the molten metal can be evenly distributed to the four molding cavities 3.

The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in the present utility model is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.

Claims (10)

1. A control arm casting mold, comprising:

the upper die body (1) and the lower die body (2) are combined, and then a casting space is formed between the upper die body (1) and the lower die body (2), and comprises four forming inner cavities (3) for forming two pairs of control arms;

the gate (4) is arranged on the lower die body (2) and is communicated with the end part of each forming inner cavity (3), and the distance between the gate (4) and each forming inner cavity (3) is equal;

the slag collecting bag (5) is arranged at one end, far away from the inlet gate (4), of the forming inner cavity (3) and is communicated with the forming inner cavity (3).

2. The control arm casting mold according to claim 1, wherein a plurality of thimble assemblies are uniformly distributed on the upper mold body (1), and each thimble assembly comprises a thimble (6), a limiting piece (13) and a reset assembly; one end of the thimble (6) penetrates through the upper die body (1) to the forming inner cavity (3) or the slag collecting bag (5), the thimble is in sliding connection with the upper die body (1), the limiting piece (13) is used for limiting the downward pressing distance of the thimble (6) to the forming inner cavity (3), and the reset assembly is used for resetting the thimble (6) after downward pressing.

3. The control arm casting mold according to claim 2, characterized in that the ejector pin (6) is provided with vent holes (7) penetrating through both ends.

4. A control arm casting mould according to claim 3, characterized in that the end of the thimble (6) adjacent to the forming cavity (3) is formed with a mounting groove in which an air-permeable pellet (8) is detachably mounted.

5. The control arm casting mold of claim 4 wherein the reset assembly comprises:

the supporting plate (14) is clamped with one end, far away from the forming inner cavity (3), of the thimble (6) by the supporting plate (14);

the guide post (16) is telescopic along the direction perpendicular to the mounting surface, one end of the guide post (16) is fixedly connected with the upper die body (1), and the other end of the guide post is fixedly connected with the supporting plate (14); the mounting surface is used for placing the lower die body (2);

the elastic piece (15) is sleeved on the guide post (16), one end of the elastic piece (15) is fixedly connected with the upper die body (1), and the other end of the elastic piece is fixedly connected with the supporting plate (14);

and the cover plate (17) is detachably connected with one side, far away from the forming inner cavity (3), of the supporting plate (14).

6. The control arm casting mold according to any one of claims 1 to 5, wherein a cooling water pipe (9) is installed on each of the upper mold body (1) and the lower mold body (2), the cooling water pipe (9) comprises a first circulation cavity (10), and a second circulation cavity (11) which is arranged on the outer peripheral side of the first circulation cavity (10) and is communicated with the first circulation cavity (10), a water inlet is formed in the end part of the first circulation cavity (10), and a water outlet is formed in the end part of the second circulation cavity (11).

7. Control arm casting mould according to claim 6, characterized in that the cooling water pipe (9) is arranged in a direction parallel to the mounting surface.

8. The control arm casting mold according to any one of claims 1 to 5, characterized in that the slag ladle (5) comprises a storage portion (51) and a connecting portion (52) communicating with the storage portion (51), the connecting portion (52) communicating with the forming cavity (3); the bottom surface of the connecting part (52) is in the same plane with the bottom surface of the storage part (51), and the height of the bottom surface of the connecting part (52) from the top surface of the connecting part is lower than that of the bottom surface of the storage part (51) from the top surface of the connecting part.

9. The control arm casting mold according to claim 8, wherein the bottom surface of the molding cavity (3) is in the same plane as the bottom surface of the connecting portion (52), the bottom surface of the molding cavity (3) is at a height from the top surface of the molding cavity itself, and the bottom surface of the storage portion (51) is between the height from the top surface of the molding cavity itself and the height from the bottom surface of the connecting portion (52) to the top surface of the molding cavity itself.

10. The control arm casting mold according to any one of claims 1 to 5, characterized in that a split cone is provided on the upper mold body (1) at a position corresponding to the gate (4).