Spinning-formed air spring piston

Abstract

The utility model discloses an air spring piston formed by spinning. The air spring piston comprises an upper shell, a valve mounting seat and a leak hole, a middle shell is arranged at the bottom of the upper shell, a lower shell is arranged at the bottom of the middle shell, the bottom of the upper shell is welded to the top of the middle shell, and the bottom of the middle shell is welded to the top of the lower shell; the valve mounting seat is arranged on one side of the top of the upper shell; according to the utility model, the upper shell, the middle shell, the lower shell and the valve mounting seat are processed through the die, so that the upper shell with the first curved surface and the lower shell with the second curved surface are formed, and then the top of the upper shell with the first curved surface and the top of the middle shell are welded together through argon arc welding; the upper shell with the first curved surface, the lower shell with the second curved surface and the middle shell are subjected to spinning forming in a mold, an original forming mode of turning is replaced, the surface curve of a product is smoother through spinning forming, meanwhile, the machining cost is lower, material and energy consumption is reduced, and the product cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spring pistons, in particular to a spinning-formed air spring piston. Background Art

[0002] The air spring is an important vibration-damping component installed between the car body and the bogie. The nodding, shaking, serpentine and rolling movements of the vehicle during operation are all applied to the air spring as excitation amplitudes. The multi-degree-of-freedom deformation and vibration reduction and energy dissipation functions of the air spring enable it to play a good vibration reduction role under various excitation amplitude conditions, ensuring safe and smooth operation of the vehicle.

[0003] The existing, traditional air spring is a single air chamber structure. In order to make the air spring have a larger stiffness adjustment range, it can provide both good controllability and a good comfortable driving experience under different driving conditions; however, since the piston housing and piston base of the piston parts are mostly integrally injection molded, the preparation of the piston housing and the piston base requires the help of an injection mold; at the same time, the piston housing and the piston base need to be connected with a hot melt mold, that is, the piston part sample needs two molds for assistance, resulting in a high production cost of the piston part sample, increasing the consumption of materials and energy, and also increasing the cost of the product, which is not convenient for promotion. In view of this, we have introduced a spin-formed air spring piston. Utility Model Content

[0004] The utility model aims to provide a spinning air spring piston to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spinning-formed air spring piston, comprising: an upper shell, a valve mounting seat and a leak hole;

[0006] The bottom of the upper shell is provided with a middle shell, the bottom of the middle shell is provided with a lower shell, the bottom of the upper shell is welded to the top of the middle shell, and the bottom of the middle shell is welded to the top of the lower shell;

[0007] The valve mounting seat is arranged on the top of the upper shell body, which reduces the consumption of materials and energy, reduces product costs and improves reliability. The valve mounting seat and the upper shell body are welded together by argon arc welding;

[0008] The leakage hole is opened inside the positioning ring, and the leakage hole and the positioning ring are integrally formed. A through hole is opened on the top of the upper shell, and the through hole and the upper shell are formed by a single mold. A through groove is opened inside the upper shell, and the through groove and the upper shell are formed by a single mold. A first curved surface is connected between the upper shell and the middle shell, and the first curved surface and the upper shell are spin-formed. A second curved surface is connected between the middle shell and the lower shell, and the second curved surface and the lower shell are spin-formed. A positioning cylinder is connected to the bottom of the lower shell, and the positioning cylinder and the lower shell are integrally formed.

[0009] Preferably, the surface of the positioning tube is connected with threaded portions at equal intervals, and the threaded portions and the positioning tube are integrally formed.

[0010] Preferably, an outlet is provided at the center of the surface of the positioning cylinder, and the outlet and the positioning cylinder are integrally formed. Fixing holes are provided at equal intervals on the surface of the positioning cylinder, and the fixing holes are arranged at the edge of the positioning cylinder, so that the positioning cylinder and the fixing holes are integrally formed.

[0011] Preferably, a positioning ring is connected to the top of the valve mounting seat, and the positioning ring and the valve mounting seat are formed by a single mold.

[0012] Compared with the prior art, the beneficial effect of the utility model is as follows: the utility model processes the upper shell, the middle shell, the lower shell and the valve mounting seat through a mold, thereby forming an upper shell with a first curved surface and a lower shell with a second curved surface, and then the valve mounting seat with a positioning ring is welded to the top side of the upper shell by argon arc welding, and then the upper shell with the first curved surface and the top of the middle shell are welded together by argon arc welding, and the upper shell with the first curved surface, the lower shell with the second curved surface and the middle shell are spin-formed in the mold, thereby replacing the original lathe processing molding method, and the spin forming makes the product surface curve smoother, and at the same time the processing cost is lower, reducing the consumption of materials and energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the utility model in a front view;

[0015] Figure 3 It is a schematic diagram of the structure when the housing and the lower housing of the utility model are three-dimensionally connected;

[0016] Figure 4 It is a three-dimensional structural diagram of the valve mounting seat of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of the utility model from a top view.

[0018] In the figure: 1, upper shell; 2, middle shell; 3, lower shell; 4, positioning cylinder; 5, threaded portion; 6, valve mounting seat; 7, positioning ring; 8, through hole; 9, leakage hole; 10, fixing hole; 11, outlet; 12, through groove; 13, first curved surface; 14, second curved surface. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides a technical solution: a spinning-formed air spring piston, comprising: an upper shell 1, a middle shell 2 is arranged at the bottom of the upper shell 1, a lower shell 3 is arranged at the bottom of the middle shell 2, the bottom of the upper shell 1 is welded to the top of the middle shell 2, and the bottom of the middle shell 2 is welded to the top of the lower shell 3;

[0021] A valve mounting seat 6, wherein the valve mounting seat 6 is arranged on one side of the top of the upper housing 1;

[0022] A leak hole 9 is provided inside the positioning ring 7, a through hole 8 is provided on the top of the upper shell 1, a through groove 12 is provided inside the upper shell 1, a first curved surface 13 is connected between the upper shell 1 and the middle shell 2, the first curved surface 13 and the upper shell 1 are formed by spin forming, a second curved surface 14 is connected between the middle shell 2 and the lower shell 3, the second curved surface 14 and the lower shell 3 are formed by spin forming, a positioning cylinder 4 is connected to the bottom of the lower shell 3, the positioning cylinder 4 and the lower shell 3 are integrally formed, and the first curved surface 13 and the second curved surface 14 are made into corresponding structural curves by spinning processing, replacing the original lathe processing method, making the product surface curve smoother, and at the same time lower processing cost, reducing material and energy consumption, reducing product cost, and improving reliability.

[0023] The surface of the positioning tube 4 is connected with threaded parts 5 at equal intervals, and the threaded parts 5 and the positioning tube 4 are integrally formed.

[0024] An outlet 11 is provided at the center of the surface of the positioning cylinder 4, and the outlet 11 and the positioning cylinder 4 are integrally formed. Fixing holes 10 are provided at equal intervals on the surface of the positioning cylinder 4, and the fixing holes 10 are arranged at the edge of the positioning cylinder 4, so that the positioning cylinder 4 and the fixing holes 10 are integrally formed.

[0025] The top of the valve mounting seat 6 is connected with a positioning ring 7 , and the positioning ring 7 and the valve mounting seat 6 are formed by a single mold.

[0026] Specifically, when in use, the upper shell 1, the middle shell 2, the lower shell 3 and the valve mounting seat 6 are processed through a mold to form an upper shell 1 with a first curved surface 13 and a lower shell 3 with a second curved surface 14, and then the valve mounting seat 6 with a positioning ring 7 is welded to the top side of the upper shell 1 by argon arc welding, and then the upper shell 1 with the first curved surface 13 and the top of the middle shell 2 are welded together by argon arc welding, so that it is more convenient to use, and the upper shell 1 with the first curved surface 13, the lower shell 3 with the second curved surface 14 and the middle shell 2 are spin-formed in the mold, thereby replacing the original lathe processing molding method, and the spin forming makes the product surface curve smoother, and at the same time the processing cost is lower, the consumption of materials and energy is reduced, the product cost is reduced, and the reliability is improved.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spinning air spring piston, characterized in that: include: An upper shell (1), wherein a middle shell (2) is arranged at the bottom of the upper shell (1), and a lower shell (3) is arranged at the bottom of the middle shell (2), the bottom of the upper shell (1) and the top of the middle shell (2) are welded, and the bottom of the middle shell (2) and the top of the lower shell (3) are welded; A valve mounting seat (6), wherein the valve mounting seat (6) is arranged on one side of the top of the upper housing (1); A leakage hole (9), wherein the leakage hole (9) is provided inside the positioning ring (7), a through hole (8) is provided on the top of the upper shell (1), a through groove (12) is provided inside the upper shell (1), a first curved surface (13) is connected between the upper shell (1) and the middle shell (2), a second curved surface (14) is connected between the middle shell (2) and the lower shell (3), and a positioning tube (4) is connected to the bottom of the lower shell (3).

2. The spin-formed air spring piston according to claim 1, characterized in that: The surface of the positioning cylinder (4) is connected with threaded parts (5) at equal intervals.

3. The spin-formed air spring piston according to claim 1, characterized in that: An outlet (11) is provided at a central position on the surface of the positioning cylinder (4), and fixing holes (10) are provided at equal intervals on the surface of the positioning cylinder (4).

4. The spin-formed air spring piston according to claim 1, characterized in that: The top of the valve mounting seat (6) is connected with a positioning ring (7).

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