Die-casting die for compressor shell

Abstract

The utility model discloses a die-casting die for a compressor shell, which comprises a fixed die assembly and a movable die assembly, and the fixed die assembly and the movable die assembly are assembled to form a cavity for forming a die-casting fitting of the compressor shell. A first core pulling mechanism, a second core pulling mechanism, a third core pulling mechanism, a fourth core pulling mechanism and an inclined pulling mechanism are installed on the movable die assembly, the first core pulling mechanism and the second core pulling mechanism are oppositely arranged, and the third core pulling mechanism and the fourth core pulling mechanism are used for forming caulking grooves in the two sides of the die casting correspondingly; the inclined pulling mechanism is used for forming an air inlet of the die casting, the movable die assembly is provided with two first threaded pins, and the ends of the first threaded pins extend into a cavity face to be used for forming a connecting hole, with a downward opening, of the die casting.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, and more particularly to a die-casting mold for a compressor housing. Background Art

[0002] Aluminum die-casting is an advanced metal forming process widely used to manufacture lightweight, high-strength, and complex-shaped aluminum alloy parts. This technology primarily involves heating the aluminum alloy to a liquid state and then injecting it into a mold under high pressure. This allows the aluminum alloy to rapidly fill the mold cavity and cool and solidify, ultimately forming the desired part.

[0003] like Figure 1 and Figure 2 The figure shows a semi-finished die-casting 1 for an air-conditioning compressor housing. Connecting portions 11 are provided on both sides of the housing, with a recess 12 in the middle. Connecting holes 13 are provided at both ends of the connecting portion 11, and an air inlet 14 is provided on the housing surface. The connecting holes 13 at both ends of the connecting portion 11 and the air inlet 14 are subsequently machined through, forming the finished compressor housing. Currently, there is no die-casting mold for forming this compressor housing die-casting 1. Summary of the Invention

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model proposes a die-casting die for a compressor housing.

[0005] The technical solution adopted by the present utility model is: to provide a die-casting mold for a compressor housing, comprising a fixed mold assembly and a movable mold assembly, the fixed mold assembly and the movable mold assembly are combined to form a cavity for molding a compressor housing die-casting, the movable mold assembly is equipped with a first core-pulling mechanism, a second core-pulling mechanism, a third core-pulling mechanism, a fourth core-pulling mechanism and an oblique pulling mechanism, the first core-pulling mechanism and the second core-pulling mechanism are arranged opposite to each other, the third core-pulling mechanism and the fourth core-pulling mechanism are respectively used to mold the embedded grooves on both sides of the die-casting, the oblique pulling mechanism is used to mold the air inlet of the die-casting, the movable mold assembly is provided with two first threaded pins, the ends of the first threaded pins extend into the cavity surface to mold the connecting hole of the die-casting with the opening facing downward.

[0006] After adopting the above structure, the movable mold assembly is provided with a first core-pulling mechanism, a second core-pulling mechanism, a third core-pulling mechanism, and a fourth core-pulling mechanism. The four core-pulling mechanisms pull the cores from four directions respectively, thereby meeting the needs of molding the compressor shell. Specifically, the combination of the first core-pulling mechanism and the second core-pulling mechanism is used to mold the axial ends of the shell, that is, the first core-pulling mechanism, the second core-pulling mechanism, the parting surface of the movable mold assembly, and the parting surface of the fixed mold assembly form the cavity of the compressor shell body. The third core-pulling mechanism and the fourth core-pulling mechanism are respectively used to mold the grooves on the connecting parts on both sides of the shell, ensuring the precise molding of the connecting parts. The oblique pulling mechanism is used to mold the air inlet on the surface of the shell to meet the design requirements.

[0007] In this utility model, the design of the first threaded pin on the movable mold assembly provides an effective method for forming the connecting hole of the die-cast part. Its end protrudes into the mold cavity surface, ensuring the accurate formation of the connecting hole. This design not only improves the molding accuracy of the die-cast part, but also simplifies subsequent processing steps and improves production efficiency.

[0008] According to one embodiment of the present invention, the first core-pulling mechanism includes a first core-pulling cylinder and a first slider, and the first core-pulling cylinder is used to drive the first slider to move toward or away from the cavity; the first slider is an inner core used to form the inner cavity of the compressor housing, and its demolding stroke is long and the demolding force requirement is high. For this purpose, a first core-pulling cylinder that can increase the higher demolding force is provided.

[0009] According to one embodiment of the present invention, the second core pulling mechanism includes a second core pulling cylinder and a second slider, and the second core pulling cylinder is used to drive the second slider to move toward or away from the cavity; the second slider is used to form the contour structure of the rear part of the compressor casing, and it is combined with the first slider to form a ventilation structure inside the compressor casing.

[0010] According to one embodiment of the present invention, the third core-pulling mechanism includes a third slider and a first inclined guide column. The third slider is slidably assembled on the movable platen of the movable mold assembly, and the first inclined guide column is fixedly installed on the fixed platen of the fixed mold assembly; the mold opening force is used to drive the third slider to move and perform the core pulling action.

[0011] According to one embodiment of the present invention, the fourth core pulling mechanism includes a fourth slider and a second inclined guide column, the fourth slider is slidably assembled on the movable plate of the movable mold assembly, and the second inclined guide column is fixedly installed on the fixed plate of the fixed mold assembly.

[0012] According to one embodiment of the present invention, the fixed mold assembly is provided with two second threaded pins, and the ends of the second threaded pins extend into the mold cavity surface to form the upward-opening connection holes of the die-casting part.

[0013] According to an embodiment of the present invention, the oblique pumping mechanism includes a core rod and an oblique pumping cylinder, and the oblique pumping cylinder is used to drive the core rod to move toward or away from the mold cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic structural diagram of the compressor housing in an embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional diagram of the compressor housing in an embodiment of the present utility model;

[0017] Figure 3 A three-dimensional diagram of a mold in an embodiment of the present utility model;

[0018] Figure 4 A three-dimensional diagram of a fixed mold assembly in an embodiment of the present utility model;

[0019] Figure 5 A three-dimensional diagram of a movable mold assembly in an embodiment of the present utility model;

[0020] Figure 6 This is a three-dimensional diagram of the movable mold assembly after mold opening in the embodiment of the present utility model;

[0021] Figure 7 This is a partial structural diagram of the movable mold assembly in an embodiment of the present utility model;

[0022] Figure 8 for Figure 7 A partial enlarged view of point A in the middle;

[0023] Figure 9 It is a partial three-dimensional diagram of the movable mold assembly in the embodiment of the present utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Die casting; 2. Fixed die assembly; 3. Moving die assembly; 4. First core pulling mechanism; 5. Second core pulling mechanism; 6. Third core pulling mechanism; 7. Fourth core pulling mechanism; 8. Oblique pulling mechanism; 9. First threaded pin;

[0026] 11. Connecting portion; 12. Embedded groove; 13. Connecting hole; 14. Air inlet;

[0027] 21. Fixed mold plate; 22. First oblique guide pin; 23. Inner guide pin; 24. Fixed mold core; 25. Second oblique guide pin; 26. Second threaded pin;

[0028] 31. Moving mold core; 32. Moving mold plate;

[0029] 41. First core-pulling cylinder; 42. First slide block;

[0030] 51. Second core-pulling cylinder; 52. Second slide block;

[0031] 61, third slider; 71, fourth slider;

[0032] 81. Core rod; 82. Oblique pumping cylinder. DETAILED DESCRIPTION

[0033] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0034] like Figure 3-9 As shown, in this embodiment, a die-casting mold for a compressor housing is disclosed, including a fixed mold assembly 2 and a movable mold assembly 3. The fixed mold assembly 2 and the movable mold assembly 3 are combined to form a cavity for molding a compressor housing die-casting 1. The movable mold assembly 3 is equipped with a first core-pulling mechanism 4, a second core-pulling mechanism 5, a third core-pulling mechanism 6, a fourth core-pulling mechanism 7 and an oblique pulling mechanism 8. The first core-pulling mechanism 4 and the second core-pulling mechanism 5 are arranged opposite to each other. The third core-pulling mechanism 6 and the fourth core-pulling mechanism 7 are respectively used to mold the embedded grooves 12 on both sides of the die-casting 1. The oblique pulling mechanism 8 is used to mold the air inlet 14 of the die-casting 1. The movable mold assembly 3 is provided with two first threaded pins 9. The ends of the first threaded pins 9 extend into the cavity surface to mold the connection holes 13 of the die-casting 1 with the opening facing downward.

[0035] Further, combined with Figure 1-2 As shown, in this embodiment, the compressor housing die-casting 1 comprises a housing body and two parallel connecting portions 11 located on the surface of the housing body. A grove 12 is provided in the middle of the connecting portion 11, and connecting holes 13 are provided at the upper and lower ends of the connecting portion 11. To ensure the coaxiality of the connecting holes 13, the connecting holes 13 at the upper and lower ends are subsequently machined through. The bottom of the housing body has a complex contour structure.

[0036] Furthermore, in this embodiment, the first core pulling mechanism 4 and the second core pulling mechanism 5 are disposed opposite each other, and the third core pulling mechanism 6 and the fourth core pulling mechanism 7 are disposed opposite each other. The first core pulling mechanism 4 and the second core pulling mechanism 5 are interconnected and assembled when the mold is closed. The third core pulling mechanism 6 and the fourth side core pulling mechanism are respectively used to form the bezel 12 on both sides of the die casting 1.

[0037] Specifically, combined Figure 4-6 As shown, the first core-pulling mechanism 4 includes a first core-pulling cylinder 41 and a first slider 42. The first core-pulling cylinder 41 is used to drive the first slider 42 to move toward or away from the mold cavity. The second core-pulling mechanism 5 includes a second core-pulling cylinder 51 and a second slider 52. The second core-pulling cylinder 51 is used to drive the second slider 52 to move toward or away from the mold cavity. The third core-pulling mechanism 6 includes a third slider 61 and a first inclined guide column 22. The third slider 61 is slidably mounted on the movable plate 32 of the movable mold assembly 3, and the first inclined guide column 22 is fixedly mounted on the fixed plate 21 of the fixed mold assembly 2. The fourth core-pulling mechanism 7 includes a fourth slider 71 and a second inclined guide column 25. The fourth slider 71 is slidably mounted on the movable plate 32 of the movable mold assembly 3, and the second inclined guide column 25 is fixedly mounted on the fixed plate 21 of the fixed mold assembly 2.

[0038] Furthermore, in this embodiment, the piston rod end of the first core-pulling cylinder 41 is fixedly connected to the first slider 42, and the piston rod end of the second core-pulling cylinder 51 is fixedly connected to the second slider 52. A first oblique guide hole is provided on the third slider 61, and a second oblique guide hole is provided on the fourth slider 71. The first oblique guide post 22 slidably engages with the first oblique guide hole, and the second oblique guide post 25 slidably engages with the second oblique guide hole. The mold opening force drives the third and fourth sliders 61 and 71 to perform lateral core-pulling.

[0039] Furthermore, in this embodiment, the mold opening steps are as follows:

[0040] The movable mold assembly 3 and the fixed mold assembly 2 move away from each other, and the mold performs an opening action. The first inclined guide column 22 and the second inclined guide column 25 respectively drive the third slider 61 and the fourth slider 71 to move outward. After that, the first core-pulling cylinder 41 and the second core-pulling cylinder 51 respectively drive the first slider 42 and the second slider 52 to move. After taking out the die-casting 1, the first core-pulling cylinder 41 and the second core-pulling cylinder 51 respectively drive the first slider 42 and the second slider 52 to extend into the mold cavity. The movable mold assembly 3 and the fixed mold assembly 2 move away from each other to perform a mold closing action, and the liquid aluminum alloy is quickly injected into the mold cavity through the high-pressure injection system. After the injection is completed, the mold is quickly cooled by the cooling system, so that the aluminum alloy is quickly solidified to form the required die-casting 1.

[0041] Specifically, combined Figure 7-9As shown, the fixed die assembly 2 is provided with two second threaded pins 26, the ends of which extend into the cavity surface for forming the upward-opening connection holes 13 of the die-casting part 1. The inclined pumping mechanism 8 includes a core rod 81 and an inclined pumping cylinder 82, wherein the inclined pumping cylinder 82 is used to drive the core rod 81 to move toward or away from the cavity.

[0042] Furthermore, the fixed platen 21 is fixedly mounted with four inner guide pillars 23 , and the movable platen 32 is mounted with four inner guide sleeves corresponding to the four inner guide pillars 23 .

[0043] Because the structure used to form the connection hole 13 on the mold is subjected to relatively concentrated stress, its service life is shorter than that of the mold body and requires regular replacement. In this embodiment, by using a first threaded pin 9 and a second threaded pin 26, the fixed mold assembly 2 includes a fixed mold plate 21 and a fixed mold core 24, and the second threaded pin 26 is threadedly mounted on the fixed mold plate 21, and the end of the second threaded pin 26 extends into the parting surface of the fixed mold core 24. The movable mold assembly 3 includes a movable mold plate 32 and a movable mold core 31, and the first threaded pin 9 is mounted on the movable mold plate 32, and the end of the first threaded pin 9 extends into the parting surface of the movable mold core 31. When the mold is closed, the end of the first threaded pin 9 and the end of the second threaded pin 26 are both located in the mold cavity.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0046] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can mean fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0048] In the description of this specification, the reference terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A die-casting mold for a compressor housing, comprising a fixed mold assembly and a movable mold assembly, wherein the fixed mold assembly and the movable mold assembly are combined to form a cavity for forming a compressor housing die-casting, characterized in that: The movable mold assembly is equipped with a first core pulling mechanism, a second core pulling mechanism, a third core pulling mechanism, a fourth core pulling mechanism and an oblique pulling mechanism. The first core pulling mechanism and the second core pulling mechanism are arranged opposite to each other. The third core pulling mechanism and the fourth core pulling mechanism are respectively used to form the embedding grooves on both sides of the die casting. The oblique pulling mechanism is used to form the air inlet of the die casting. The movable mold assembly is provided with two first threaded pins. The ends of the first threaded pins extend into the cavity surface to form the connecting holes of the die casting with the opening facing downward.

2. A die-casting mold for a compressor housing according to claim 1, characterized in that: The first core-pulling mechanism comprises a first core-pulling oil cylinder and a first sliding block, and the first core-pulling oil cylinder is used to drive the first sliding block to move toward or away from the cavity.

3. A die-casting mold for a compressor housing according to claim 1, characterized in that: The second core-pulling mechanism comprises a second core-pulling oil cylinder and a second sliding block, and the second core-pulling oil cylinder is used to drive the second sliding block to move toward or away from the cavity.

4. A die-casting mold for a compressor housing according to claim 1, characterized in that: The third core-pulling mechanism includes a third slider and a first oblique guide column. The third slider is slidably assembled on the movable platen of the movable mold assembly, and the first oblique guide column is fixedly mounted on the fixed platen of the fixed mold assembly.

5. The die-casting mold for a compressor housing according to claim 1, characterized in that: The fourth core-pulling mechanism includes a fourth slider and a second oblique guide column. The fourth slider is slidably assembled on the movable platen of the movable mold assembly, and the second oblique guide column is fixedly mounted on the fixed platen of the fixed mold assembly.

6. A die-casting mold for a compressor housing according to claim 1, characterized in that: The fixed die assembly is provided with two second threaded pins, the ends of which extend into the cavity surface for forming the upwardly opening connection holes of the die casting.

7. A die-casting mold for a compressor housing according to claim 1, characterized in that: The oblique pumping mechanism comprises a core rod and an oblique pumping cylinder, and the oblique pumping cylinder is used to drive the core rod to move toward or away from the mold cavity.

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