Manufacturing device for sand mold of large air spring damping cover plate

Abstract

The utility model provides a manufacturing device for a sand mould of a large air spring damping cover plate, which belongs to the technical field of moulds and comprises an upper box mould, a middle box mould and a lower box mould, a first mould plate is arranged on the lower side of the upper box mould, a first forming part is arranged on the first mould plate towards the inside of the upper box mould, and a second mould plate is arranged on the upper side of the middle box mould. A second forming part is arranged on the second template towards the interior of the middle box type, a template is arranged on the lower side of the middle box type, the template is attached to the second forming part, at least two first positioning bolts are arranged between the template and the second forming part, a positioning plate is arranged in the lower box type, the positioning plate is attached to the template, and at least two second positioning bolts are arranged between the positioning plate and the template. The sand mold is manufactured by adopting a three-box parting structure aiming at the large air spring damping cover plate, so that the problems that the large air spring damping cover plate is complicated in structure and high in sand mold manufacturing difficulty are solved, and the production efficiency and the production quality of products are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a manufacturing device for a large air spring shock absorber cover plate sand mold. Background Technology

[0002] Sand casting is an economical and practical casting technology widely used in the manufacture of various metal parts. It utilizes sand to create molds capable of producing complex geometries, suitable for both small-batch production and the manufacture of large castings. This technology supports the casting of various metallic materials, such as iron, steel, aluminum, and copper alloys, and offers high high-temperature resistance. Sand casting offers fast production speeds, high design flexibility, and easy modification and adjustment. Although its surface finish and dimensional accuracy are relatively lower, its low cost and applicability make it an important tool in the manufacturing industry.

[0003] like Figure 8 As shown, this is a large air spring shock absorber cover plate. Its structure is complex and its size is large. Traditional casting molds cannot be used for production, and corresponding sand molds need to be designed. However, the manufacture of sand molds is difficult. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a manufacturing device for a large air spring shock absorber cover plate sand mold.

[0005] The technical solution adopted by this utility model is as follows: This application provides a manufacturing device for a large air spring shock absorber cover plate sand mold, including an upper box type, a middle box type and a lower box type. A first mold plate is provided on the lower side of the upper box type. A first forming part is provided on the first mold plate facing the upper box type. A second mold plate is provided on the upper side of the middle box type. A second forming part is provided on the second mold plate facing the middle box type. A template is provided on the lower side of the middle box type. The template abuts against the second forming part and at least two first positioning pins are provided between the two. A positioning plate is provided inside the lower box type. The positioning plate abuts against the template and at least two second positioning pins are provided between the positioning plate and the template.

[0006] In some embodiments, a casting system is provided inside the upper box-shaped section facing the first forming part, and the casting system includes a main riser and multiple secondary risers.

[0007] In some embodiments, a plurality of first chills are abutted on the first forming part.

[0008] In some embodiments, a plurality of second chills are abutted on the second forming part.

[0009] In some embodiments, the positioning plate is fitted with an annular chill, the upper end face of which abuts against the template.

[0010] In some embodiments, the upper surface of the annular chill is provided with a plurality of first grooves and second grooves, which are arranged in a mesh pattern to form a plurality of evenly distributed protrusions.

[0011] In some embodiments, the upper box type is provided with at least two water inlet channels, and the lower box type is provided with a water outlet channel corresponding to the water inlet channels.

[0012] In some embodiments, a sand core is also included, the sand core comprising a positioning portion and a third forming portion, the positioning portion being adapted to a positioning plate.

[0013] In some embodiments, the lower box shape is attached to the lower side of the middle box shape, and the middle box shape is filled with molding sand to form a second sand mold. The end face of the second sand mold near the lower box shape serves as the third mold plate of the lower box shape.

[0014] The beneficial effects of this utility model are as follows: This utility model adopts a three-box split structure to manufacture sand molds for large air spring shock absorber covers, which overcomes the problems of complex structure of large air spring shock absorber covers and high difficulty in manufacturing sand molds, and effectively improves the production efficiency and production quality of the products. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0016] Figure 1 This is an exploded view of the manufacturing apparatus in this utility model;

[0017] Figure 2 Local structural explosion of the manufacturing device in this utility model Figure 1 ;

[0018] Figure 3 Local structural explosion of the manufacturing device in this utility model Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the manufacturing apparatus in this utility model. Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the manufacturing apparatus in this utility model. Figure 2 ;

[0021] Figure 6This is a schematic diagram of the annular chill in this utility model;

[0022] Figure 7 This is a schematic diagram of the sand core in this utility model;

[0023] Figure 8 This is a schematic diagram of a large air spring shock absorber cover plate according to the present invention. Detailed Implementation

[0024] The following description provides specific application scenarios and requirements for this specification, intended to enable those skilled in the art to make and use the contents of this specification. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "longitudinal", "lateral", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element or component to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Secondly, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components and should not be construed as limiting the embodiments of this application.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts.

[0028] Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Regarding the accompanying drawings of this application, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this specification. It should also be understood that the drawings are not drawn to scale.

[0030] Figure 8This is a schematic diagram of a large air spring damping cover. Due to its complex structure, large size, and the limitations of traditional casting molds, sand casting is generally preferred. Specifically, the cover's geometry is extremely complex, containing numerous details and internal cavity structures, which significantly increases the difficulty of manufacturing the sand mold.

[0031] Based on the above issues, such as Figures 1 to 7 As shown in the figure, this specification provides a manufacturing apparatus for a sand mold of a large air spring shock absorber cover plate, including an upper box type 1, a middle box type 2, and a lower box type 3. A first mold plate 4 is provided on the lower side of the upper box type 1, and a first forming part 40 is provided on the first mold plate 4 facing the interior of the upper box type 1. A second mold plate 5 is provided on the upper side of the middle box type 2, and a second forming part 50 is provided on the second mold plate 5 facing the interior of the middle box type 2. A template 6 is provided on the lower side of the middle box type 2, and the template 6 abuts against the second forming part 50, with at least two first positioning pins 7 provided between the two. A positioning plate 8 is provided inside the lower box type 3, and the positioning plate 8 abuts against the template 6. At least two second positioning pins 9 are provided between the positioning plate 8 and the template 6. This specification adopts a three-box parting structure to manufacture sand molds for large air spring shock absorber covers, overcoming the problems of complex structure and high difficulty in manufacturing sand molds for large air spring shock absorber covers, and effectively improving the production efficiency and production quality of the product.

[0032] Secondly, the positioning pins ensure precise alignment and stable connection of each part, thereby reducing errors and guaranteeing the dimensional accuracy and quality of the casting.

[0033] In some embodiments, a casting system 10 is provided inside the upper box-shaped 1 facing the first forming part 40. The casting system 10 includes a main riser 100 and multiple secondary risers 101. This arrangement ensures that the liquid metal quickly and evenly fills the entire mold, helping to reduce defects such as cold shuts, porosity, and shrinkage cavities that occur during the casting process, thereby improving the quality of the casting. The secondary risers 101 are located at the thicker part of the wall of the large air spring damping cover plate.

[0034] In some embodiments, a plurality of first chills 11 are abutted on the first forming part 40, and a plurality of second chills 12 are abutted on the second forming part 50. Chills are materials with good thermal conductivity, capable of rapidly dissipating localized heat from the casting. By providing chills on the forming part, the cooling process of the casting can be accelerated, helping to control the solidification rate. Regarding the location of the chills, they are generally preferably located at the thicker part of the wall of the large air spring damping cover plate.

[0035] In some embodiments, the positioning plate 8 is fitted with an annular chill 13, the upper end face of which abuts against the template 6. For the structure of a large air spring shock absorber cover plate, which includes a flange, the annular chill 13 is positioned abutting against the flange. The flange is relatively thick and serves as the main stress-bearing part. Therefore, the use of a dedicated annular chill 13 reduces metal shrinkage and deformation in this area, thereby enhancing the structural strength and overall stability of the casting.

[0036] In some embodiments, the upper surface of the annular chill 13 is provided with a plurality of first grooves 130 and second grooves 131. The plurality of first grooves 130 and second grooves 131 are arranged in a mesh pattern to form a plurality of uniformly distributed protrusions 132. The presence of grooves increases the surface area of ​​the chill, thereby improving heat exchange efficiency, enhancing the cooling effect, and helping to more effectively control the solidification process of the casting and reduce cooling time. Secondly, the mesh groove structure can promote the uniformity of cooling and avoid local overcooling or overheating, thereby helping to improve the quality and performance of the casting.

[0037] In some embodiments, the upper box type 1 is provided with at least two upper water flow channels 14, and the lower box type 3 is provided with a lower water flow channel 15 corresponding to the upper water flow channels. Faster cooling speed helps to shorten the production cycle, improve production efficiency, and reduce production costs.

[0038] In some embodiments, a sand core 16 is also included, which includes a positioning part 160 and a third forming part 161. The positioning part 160 is adapted to the positioning plate 8, which improves the assembly efficiency of the sand core, reduces human positioning errors, simplifies the production process, and helps to improve production efficiency.

[0039] When manufacturing the sand mold, the first mold plate 4 is attached to the lower side of the upper box mold 1, and the casting system 10, the upper water flow channel 14 and the first chill 11 are all set in the designated positions. Then, molding sand is filled into the upper box mold 1 to form the first sand mold. Then, the first mold plate 4 and the upper box mold 1 are removed to obtain the first sand mold.

[0040] The second molded plate 5 is attached to the upper side of the middle box mold 2, the lower box mold 3 is attached to the lower side of the middle box mold 2, the template 6 is attached to the second forming part 50 of the second molded plate 5 through the first positioning pin 7, the positioning plate 8 is attached to the template 6 through the second positioning pin 9, the annular chill 13 is sleeved on the outside of the positioning plate 8 and attached to the template 6, the second chill 12 and the drain channel 15 are both set in designated positions, and the middle box mold 2 is filled with molding sand to form a second sand mold.

[0041] Next, the end face of the second sand mold near the lower box mold 3 is used as the third mold plate of the lower box mold 3. The lower box mold 3 is filled with molding sand to form the third sand mold. With this setting, one mold plate can be omitted, reducing production costs.

[0042] It should be understood that when using the middle box type 2 and the lower box type 3, they need to be inverted so that the second mold plate 5 is at the bottom before filling with molding sand.

[0043] Then, separate the middle box type 2 and the lower box type 3 to facilitate the removal of the second mold plate 5, the template 6 and the positioning plate 8. Then, insert the sand core 16 into the positioning hole formed on the third sand mold by the positioning plate 8, and then remove the middle box type 2 and the lower box type 3.

[0044] Finally, by combining the first sand mold, the second sand mold, and the third sand mold, a sand mold for casting large air spring damping cover plates can be obtained.

[0045] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that the requirements of this application encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0046] Furthermore, it should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art may readily identify some of the devices as separate embodiments when reading this application. That is, the embodiments in this application can also be understood as an integration of multiple sub-embodiments. It is also valid when each sub-embodiment contains fewer than all the features of a single foregoing disclosed embodiment.

[0047] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments of this application. Other modified embodiments are also within the scope of this application. Therefore, the embodiments disclosed herein are merely examples and not limitations. Those skilled in the art can adopt alternative configurations to implement the applications in this application based on the embodiments in this application. Therefore, the embodiments of this application are not limited to the embodiments precisely described in the application.

Claims

1. A manufacturing apparatus for a large air spring shock absorber cover plate sand mold, characterized in that, The container includes an upper box type (1), a middle box type (2), and a lower box type (3). The lower side of the upper box type (1) is provided with a first molded plate (4), and the first molded plate (4) is provided with a first forming part (40) facing the upper box type (1). The upper side of the middle box type (2) is provided with a second molded plate (5), and the second molded plate (5) is provided with a second forming part (50) facing the middle box type (2). The lower side of the middle box type (2) is provided with a template (6), and the template (6) is attached to the second forming part (50), and at least two first positioning pins (7) are provided between the two. The lower box type (3) is provided with a positioning plate (8), and the positioning plate (8) is attached to the template (6), and at least two second positioning pins (9) are provided between the positioning plate (8) and the template (6).

2. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 1, characterized in that, The upper box type (1) is provided with a casting system (10) facing the first forming part (40), and the casting system (10) includes a main riser (100) and multiple secondary risers (101).

3. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 1, characterized in that, A plurality of first chills (11) are attached to the first forming part (40).

4. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 1, characterized in that, A plurality of second chills (12) are attached to the second forming part (50).

5. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 1, characterized in that, The positioning plate (8) is covered with an annular chill (13), and the upper end surface of the annular chill (13) is attached to the template (6).

6. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 5, characterized in that, The upper surface of the annular chill (13) is provided with a plurality of first grooves (130) and second grooves (131), and the plurality of first grooves (130) and second grooves (131) are arranged in a mesh to form a plurality of evenly distributed protrusions (132).

7. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 1, characterized in that, The upper box type (1) is provided with at least two upper water flow channels (14), and the lower box type (3) is provided with a lower water flow channel (15) corresponding to the upper water flow channels.

8. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 1, characterized in that, It also includes a sand core (16), which includes a positioning part (160) and a third forming part (161), wherein the positioning part (160) is adapted to the positioning plate (8).

9. The manufacturing apparatus for a large air spring shock absorber cover plate sand mold according to claim 1, characterized in that, The lower box type (3) is attached to the lower side of the middle box type (2). The middle box type (2) is filled with molding sand to form a second sand mold. The end face of the second sand mold near the lower box type (3) serves as the third mold plate of the lower box type.

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