Volume-adjustable air spring and production mold of air spring base cover

Abstract

The utility model discloses a volume-adjustable air spring which comprises a piston, a bag skin and a base, one end of the bag skin is fixed on the outer side of the lower portion of the piston, the other end of the bag skin is fixed on the outer side of the lower portion of the base, the volume-adjustable air spring further comprises a base cover installed on the base, and an air chamber with the upper portion extending into the bag skin. The height specification of the base cover is determined according to requirements, the working volume of the air chamber is adjusted according to the occupied volume of the base cover with different height specifications in the air chamber, and the base cover is manufactured through a production mold with a height-adjustable mold inner core. Thus, manual air chamber debugging sample pieces and piston sample pieces do not need to be manufactured, only one set of production mold with the height-adjustable mold inner core is needed, the manufacturing cost of the debugging sample pieces is reduced, and the development period of the debugging sample pieces is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to air spring technical field especially relates to an air spring with adjustable volume and production mould of air spring base cover. BACKGROUND

[0002] The vehicle air spring can be mainly adjusted in rigidity performance through adjusting gas volume or piston angle. Therefore, for the rear air spring, the rigidity is mainly adjusted through the following two methods in the current adjustment development stage: 1) the maximum volume gas chamber is made by hand, on the basis, the volume is reduced by injecting liquid into the air spring cavity, so as to realize the rigidity adjustment; 2) the piston of different angles is manufactured and buckled on the air spring, so that different rigidity requirements are realized. The above first method needs to open the mould after adjustment locking, and the development cycle is long. The second scheme needs to manufacture multiple groups of debugging sample assemblies of different angles according to the rigidity requirement, and the manufacturing cycle is long and the cost is high. And the piston angle is limited by durability and stroke interference, and the rigidity range may not meet the adjustment requirement. SUMMARY

[0003] In order to solve the technical problems in the background art, the utility model provides an air spring with adjustable volume and a production mould of the air spring base cover.

[0004] The utility model discloses an air spring with adjustable volume, which comprises a piston, a bladder and a base, one end of the bladder is fixed to the lower outer side of the piston, the other end is fixed to the lower outer side of the base, further comprising a base cover installed on the base, a gas chamber with the upper part extending into the bladder, the height specification of the base cover is determined according to requirements, the working volume of the gas chamber is adjusted according to the volume size occupied by the base cover of different height specifications in the gas chamber, and the base cover is made by the production mould with adjustable height of mould core.

[0005] Preferably, one end of the bladder is buckled and fixed to the lower outer side of the piston through buckling ring I, and the other end is buckled and fixed to the lower outer side of the base cover through buckling ring II.

[0006] The utility model further discloses a production mould of air spring base cover, the production mould is the production mould described in any one of the above, the base cover is the base cover described in any one of the above, comprising an upper mould and a lower mould, a mould core is arranged between the upper mould and the lower mould, and the mould core is used for producing the base cover.

[0007] Preferably, the inner core of the mold comprises an inner core I and an inner core II, the inner core I is slidingly installed in the lower mold, the inner core II is slidingly installed in the upper mold, and the distance between the upper end of the inner core I and the lower end of the inner core II is relatively fixed, the overall height of the inner core of the mold is adjusted by sliding the inner core I and the inner core II upward or downward at the same time, so as to adjust the position height of the inner core of the mold in the mold.

[0008] Preferably, the limiting structure I for limiting the position of the inner core I in the lower mold and the limiting structure II for limiting the position of the inner core II in the upper mold are further included.

[0009] In summary, the utility model has the following beneficial effects: by installing base covers of different height specifications on the base, the working volume of the air chamber is adjusted according to the volume occupied by the base cover of different height in the air chamber, and then the stiffness of the air spring is adjusted. In this way, the air spring air chamber volume can be adjusted by replacing the base cover of different height specifications, and the production mold can produce base cover calibration samples of different heights to adjust the working volume of the air spring air chamber. After calibration, according to the base cover of the required height, the height position of the inner core of the mold is locked, and the final mold production process is determined. In this way, manual air chamber debugging samples and piston samples are not needed, and only one set of mold inner core height-adjustable production mold can be used to produce base covers of different heights, without the need for multiple molds, thereby reducing the manufacturing cost and development cycle of the debugging sample.

[0010] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structure schematic view of the adjustable volume air spring of the utility model embodiment;

[0012] Figure 2 It is a structure schematic view of the production mold of the utility model embodiment;

[0013] Figure 3 It is a partial structure schematic view of the mold inner core of the utility model embodiment.

[0014] In the drawing:

[0015] 1, piston;2, bladder skin;3, base;4, base cover;5, inner core I;6, inner core II;7, upper mold;8, lower mold. DETAILED DESCRIPTION

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0017] like Figure 1 As shown, this embodiment proposes an adjustable volume air spring, including a piston 1, a bladder 2, and a base 3. One end of the bladder 2 is fixed to the lower outer side of the piston 1, and the other end is fixed to the lower outer side of the base 3. It also includes a base cover 4 installed on the base 3, and an air chamber extending into the bladder 2. The height of the base cover 4 is determined according to requirements. The working volume of the air chamber is adjusted according to the volume occupied by the base cover 4 with different height specifications in the air chamber. The base cover 4 is made by a production mold with adjustable core height.

[0018] Specifically, one end of the bladder skin 2 is clamped and fixed to the lower outer side of the piston 1 by clamping ring I, and the other end is clamped and fixed to the lower outer side of the base cover 4 by clamping ring II.

[0019] In this way, by simply installing base covers 4 of different heights on the base 3, the working volume of the air chamber can be adjusted according to the volume occupied by the base covers 4 of different heights in the air chamber, thereby adjusting the stiffness of the air spring. Thus, base covers 4 of different heights can be produced by the production mold as calibration samples to adjust the working volume of the air spring air chamber. After calibration, the height position of the mold core is locked according to the base cover 4 that meets the required height, and the final mold production process is determined. In this way, there is no need to make manual air chamber calibration samples and piston samples. Only one set of production mold with adjustable mold core height is needed to complete the production of base covers of different heights. Multiple sets of molds are not required, which reduces the manufacturing cost and development cycle of calibration samples.

[0020] This embodiment also proposes a production mold for an air spring base cover, such as... Figures 2-3 As shown, the production mold is the production mold as described in the above embodiment, and the base cover 4 is the base cover as described in the above embodiment, including an upper mold 7 and a lower mold 8. A mold core is provided between the upper mold 7 and the lower mold 8, and the mold core is used to produce the base cover 4.

[0021] Furthermore, the mold core includes inner core I5 ​​and inner core II6. Inner core I5 ​​is slidably installed in the lower mold 8, and inner core II6 is slidably installed in the upper mold 7. The distance between the upper end of inner core I5 ​​and the lower end of inner core II6 is relatively fixed. By simultaneously sliding inner core I5 ​​and inner core II6 upward or downward, the overall height of the mold core can be adjusted, thereby adjusting the position height of the mold core in the mold, and thus obtaining base covers 4 of different heights.

[0022] The distance between the upper end of the inner core I 5 and the lower end of the inner core II 6 is relatively fixed and unchanged, the overall height of the mold inner core is adjusted by adjusting the position of the mold inner core group in the mold, different height base cover adjustment sample parts are obtained, and the volume occupied by the base cover 4 in the air chamber changes when the base cover 4 of different heights is installed on the base 3 of the air spring, so that the size of the air chamber of the air spring is adjusted. The limiting structure I for limiting the position of the inner core I 5 in the lower mold 8 and the limiting structure II for limiting the position of the inner core II 6 in the upper mold 7 are further included. The limiting structure can refer to the existing structure, and will not be repeated here.

[0023] During adjustment, if the height of the mold inner core is at the lowest position, the height of the produced base cover 4 is the smallest, and the volume occupied in the air chamber of the air spring is the smallest, and the volume of the corresponding air spring is the largest. According to the debugging requirements, the height position of the upper core 51 is continuously adjusted, different height base covers 4 (base covers capable of realizing different air spring volumes are obtained as adjustment sample parts) are produced, and the volume occupied by the different height base covers 4 in the air chamber of the air spring changes accordingly. After adjustment, the base cover of a specific height is locked according to the required volume of the air spring, and then the height position of the mold inner core for producing the base cover of the height is locked, and the final mold production process is determined. Only one set of mold inner core height-adjustable production mold can be completed, which can be used as a production mold for producing different adjustment sample base covers 4, and can also be locked to produce base covers of the required height for batch production, thereby reducing the manufacturing cost and development cycle of the debugging sample.

[0024] It should be understood that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, 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 in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specified. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A volume-adjustable air spring comprising a piston, a bag skin, and a base, one end of the bag skin being fixed to the lower outer side of the piston and the other end being fixed to the lower outer side of the base, characterized in that, The base cover is installed on the base, and the air chamber is arranged in the upper part of the base cover and extends into the capsule skin. The height of the base cover is determined according to requirements, and the working volume of the air chamber is adjusted according to the volume occupied by the base cover with different heights in the air chamber. The base cover is manufactured by the production mold with the adjustable height of the mold core.

2. The adjustable volume air spring of claim 1, wherein, One end of the capsule skin is fixed on the lower outer side of the piston by the buckling ring I, and the other end is fixed on the lower outer side of the base cover by the buckling ring II.

3. A production mold for an air spring base cover, the production mold being the production mold as set forth in claim 1 or 2, the base cover being the base cover as set forth in claim 1 or 2, characterized in that, The upper mold and the lower mold are provided with the mold core therebetween, and the mold core is used for manufacturing the base cover.

4. The production mold for an air spring base cover according to claim 3, characterized by, The mold core includes the core I and the core II. The core I is slidably installed in the lower mold, the core II is slidably installed in the upper mold, and the distance between the upper end of the core I and the lower end of the core II is relatively fixed. The overall height of the mold core is adjusted by simultaneously sliding the core I and the core II upward or downward, so as to adjust the position height of the mold core in the mold.

5. The air spring base cover production mold of claim 4, wherein, The limiting structure I is used for limiting the position of the core I in the lower mold, and the limiting structure II is used for limiting the position of the core II in the upper mold.

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