Casting mold for upper air chamber of air spring

Abstract

The utility model discloses a casting die for an upper air chamber of an air spring, which comprises an upper die and a lower die, a cavity for lateral lying of the upper air chamber is arranged between the upper die and the lower die, and a loose core I and a loose core II are further arranged between the upper die and the lower die. The two end parts and the end part inner cavity of the upper air chamber are respectively formed, and the shapes of the two end parts and the end part inner cavity of the upper air chamber are respectively matched with those of the two end parts and the end part inner cavity of the upper air chamber; and the sand core is of an integral structure and is used for forming the inner surface of the upper air chamber, and the shape of the sand core is matched with that of the interior of the upper air chamber. Thus, through the mold arrangement scheme of the upper mold, the lower mold, the loose core I, the loose core II and the integral sand core, the upper air chamber is arranged in a side-lying mode, the integral sand core is simple in structure, the loose core I and the loose core II are arranged at the two ends of the upper air chamber respectively, the situation that arrangement of a pouring gate, a feeding channel and a cooling channel is affected is avoided, and the internal quality of parts can be well guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to air spring technical field especially relates to a casting mould of air chamber on air spring. BACKGROUND

[0002] At present, the air chamber of the air spring of the passenger car has the large volume cavity structure air chamber and the small volume open air chamber structure according to the demand of volume and arrangement. The large volume air chamber structure has two mainstream technical routes, one is the plastic upper and lower half shell welded structure, and the other is the aluminum alloy upper and lower half shell welded structure. The aluminum alloy upper and lower half shell welded scheme is high in cost, and the air tightness and welding strength problems caused by the weld are factors, therefore, the scheme of producing the integral aluminum alloy large volume air chamber is being adopted. Because the integral aluminum alloy structure features are relatively complex and have the cavity structure, therefore, a casting mould is urgently needed to solve the forming of the air chamber cavity structure, the control of internal blowhole and shrinkage. SUMMARY

[0003] To solve the technical problems in the background art, the utility model provides a casting mould of air chamber of air spring.

[0004] The utility model discloses a casting mould of air chamber of air spring, which comprises an upper mould and a lower mould, a cavity for forming a side-lying air chamber is arranged between the upper mould and the lower mould, and the upper mould and the lower mould further comprise:

[0005] The core pulling I and the core pulling II are respectively used for forming the two end portions and the end portion inner cavities of the air chamber, and the shapes thereof are matched with the two end portions and the end portion inner cavities of the air chamber.

[0006] The sand core is arranged in an integral structure and is used for forming the inner surface of the air chamber, and the shape thereof is matched with the inside of the air chamber.

[0007] Preferably, the upper mould and the lower mould are further provided with a sprue, a feeding channel and a cooling channel.

[0008] Preferably, the sand core is located between the core pulling I and the core pulling II and is positioned on the core pulling I, and the sand core is positioned and fixed by the pressing of the core pulling II.

[0009] Preferably, the cavity is located between the lower end face of the upper mould and the upper end face of the lower mould and is used for forming the outer surface of the air chamber, and the shape profile thereof is matched with the outer surface of the air chamber.

[0010] Preferably, the outer ends of the core pulling I and the core pulling II respectively extend out of the mould closing ends outside the two ends of the upper mould and the lower mould.

[0011] In summary, the utility model has the following beneficial effects: through the die arrangement scheme of upper die, lower die and core -pulling I, core -pulling II and integral sand core, upper air chamber side lies arrangement, integral sand core simple structure, core -pulling I and core -pulling II are arranged at both ends of upper air chamber respectively, avoid affecting the arrangement of pouring gate, feeding channel and cooling channel, can better ensure the internal quality of part.

[0012] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the sectional view of the casting mold of the upper air chamber of air spring of the utility model embodiment;

[0014] Figure 2 It is the explosion drawing of the casting mold of the upper air chamber of air spring of the utility model embodiment.

[0015] In the drawing:

[0016] 1, upper die;2, core -pulling I;3, lower die;4, core -pulling II;5, upper air chamber;6, sand core. DETAILED DESCRIPTION

[0017] The embodiment of the utility model is described in detail below, the example of the embodiment is represented in the drawings, wherein identical or similar symbols indicate identical or similar elements or elements with identical or similar functions throughout. The embodiment described below by referring to the drawings is exemplary, only for explaining the utility model, and can not be understood as limiting the utility model.

[0018] As Figures 1-2 Indicated, the casting mold of the upper air chamber of air spring proposed in this embodiment includes upper die 1 and lower die 3, and the upper die 1 and the lower die 3 are provided with a cavity for forming the side-lying upper air chamber 5, and the upper die 1 and the lower die 3 further include:

[0019] Core -pulling I 2 and core -pulling II 4 are respectively used for forming the two end portions of the upper air chamber 5 and the end portion inner cavity, and the shapes thereof are matched with the two end portions of the upper air chamber 5 and the end portion inner cavity respectively;

[0020] Sand core 6 is provided with integral structure and is used for forming the inner surface of the upper air chamber 5, and the shape thereof is matched with the inside of the upper air chamber 5.

[0021] Among them, the sand core 6 is located between the core -pulling I 2 and the core -pulling II 4, and the sand core 6 is positioned on the core -pulling I 2 and is positioned and fixed by the core -pulling II 4.

[0022] Specifically, the cavity is located between the lower end face of the upper mold 1 and the upper end face of the lower mold 3, and is used to form the outer surface of the upper air chamber 5, the shape of which matches the outer surface of the upper air chamber 5.

[0023] Thus, with the mold arrangement scheme of upper mold 1, lower mold 3, core pulling I 2, core pulling II 4 and integral sand core 6, the upper air chamber 5 is arranged on its side, the integral sand core structure is simple, and core pulling I 2 and core pulling II 4 are respectively arranged at the two ends of the upper air chamber 5, avoiding affecting the arrangement of the gating, shrinkage compensation channel and cooling channel, and can better ensure the internal quality of the parts.

[0024] Furthermore, the upper mold 1 and lower mold 3 are also equipped with runners, shrinkage compensation channels, and cooling channels. Since the positions of core pullers I2 and II4 on the upper air chamber 5 and the area they occupy on the surface of the upper air chamber 5 are relatively small, they will not affect the arrangement of the runners, shrinkage compensation channels, and cooling channels, thus ensuring the internal quality of the parts.

[0025] Specifically, the gating system, shrinkage compensation channel, and cooling channel are arranged on the lower end face of the upper mold 1 and the upper end face of the lower mold 3.

[0026] Furthermore, such as Figure 1 As shown, in order to facilitate demolding, the outer ends of core pull I2 and core pull II4 extend outside the mold closing ends of the upper mold 1 and the lower mold 3, respectively.

[0027] In summary, in the mold, the upper air chamber 5 is arranged on its side, and the mold cavity is distributed between the upper mold 1 and the lower mold 3. The left and right end surfaces of the upper air chamber 5 are formed by core pulling I2 and core pulling II4. The sand core 6 is used to form the inner surface of the upper air chamber 5. The sand core 6 is positioned on the core pulling I2 and is positioned and fixed by pressing with the core pulling II4. The sprue, shrinkage channel and cooling channel on the mold are arranged on the upper mold 1 and the lower mold 3. Since the position of the core pulling I2 and the core pulling II4 on the upper air chamber 5 and the position of the surface of the upper air chamber 5 occupied by them are small, they will not affect the arrangement of the sprue, shrinkage channel and cooling channel, which can better ensure the internal quality of the parts.

[0028] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A casting mold for an upper air chamber of an air spring, comprising an upper mold and a lower mold, a cavity for forming a side-lying upper air chamber being provided between the upper mold and the lower mold, characterized in that, The upper die and the lower die further comprise: The core pulling I and the core pulling II are respectively used for forming two end portions and end portion inner cavities of the upper air chamber, and shapes thereof are matched with the two end portions and the end portion inner cavities of the upper air chamber; The sand core is provided as an integral structure and is used for forming an inner surface of the upper air chamber, and a shape thereof is matched with the inner portion of the upper air chamber.

2. The cast mold for an upper air chamber of an air spring of claim 1, wherein, The upper die and the lower die are further provided with a sprue, a feeding channel and a cooling channel.

3. The cast mold for an upper air chamber of an air spring of claim 1, wherein, The sand core is located between the core pulling I and the core pulling II, is positioned on the core pulling I and is positioned and fixed by the core pulling II.

4. The cast mold for an upper air chamber of an air spring of claim 1, wherein, The cavity is located between the lower end face of the upper die and the upper end face of the lower die, is used for forming an outer surface of the upper air chamber, and a shape profile thereof is matched with the outer surface of the upper air chamber.

5. The cast mold for an upper air chamber of an air spring of claim 1, wherein, The outer end portions of the core pulling I and the core pulling II respectively extend out of the mold closing end portions of the upper die and the lower die.

Images