阅读说明：本技术 一种减振器及其贮液筒成型工艺 (Shock absorber and liquid storage cylinder forming process thereof ) 是由 关向 周亚俊 于 2021-09-08 设计创作，主要内容包括：本发明涉及减振设备技术领域,具体涉及一种减振器及其贮液筒成型工艺。其中,一种减振器,包括贮液筒和底盖,对所述贮液筒和底盖一体成型,所述贮液筒内设置有工作缸,所述工作缸内设置有活塞杆,所述活塞杆端部设置有复原阀系,所述底盖处设置有压缩阀系；一种减振器的贮液筒成型工艺,对贮液筒的端部高频淬火,进行加热,对加热后的贮液筒的端部进行塑形,形成材料堆积区域,使用模具对贮液筒材料堆积区域进行挤压,形成底盖。针对底盖与贮液筒之间的焊接工艺存在缺陷的技术问题,本发明将贮液筒与底盖一体成型,解决了贮液筒与底盖焊接后强度一致性不好的问题,以及虚焊和假焊的问题,也避免了焊渣对减振器的影响。(The invention relates to the technical field of vibration reduction equipment, in particular to a vibration reducer and a liquid storage cylinder forming process thereof. The shock absorber comprises a liquid storage cylinder and a bottom cover, wherein the liquid storage cylinder and the bottom cover are integrally formed, a working cylinder is arranged in the liquid storage cylinder, a piston rod is arranged in the working cylinder, a recovery valve system is arranged at the end part of the piston rod, and a compression valve system is arranged at the bottom cover; a liquid storage cylinder forming process of a shock absorber is characterized in that the end of a liquid storage cylinder is subjected to high-frequency quenching and heating, the end of the heated liquid storage cylinder is molded to form a material accumulation area, and the material accumulation area of the liquid storage cylinder is extruded by a mold to form a bottom cover. Aiming at the technical problem that the welding process between the bottom cover and the liquid storage cylinder has defects, the liquid storage cylinder and the bottom cover are integrally formed, the problems of poor strength consistency and insufficient welding and false welding after the liquid storage cylinder and the bottom cover are welded are solved, and the influence of welding slag on the shock absorber is also avoided.)

1. A shock absorber is characterized by comprising a liquid storage cylinder and a bottom cover, wherein the liquid storage cylinder and the bottom cover are integrally formed, a working cylinder is arranged in the liquid storage cylinder, a piston rod is arranged in the working cylinder, a restoring valve system is arranged at the end part of the piston rod, and a compression valve system is arranged at the bottom cover.

2. A shock absorber according to claim 1, wherein a locating portion is provided in the working cylinder, the piston rod being in movable engagement with the locating portion.

3. A damper according to claim 1, wherein said bottom cover is provided with a mounting portion at one side thereof.

4. The damper of claim 1, wherein the reservoir and the bottom cap are made of a conductive and ferromagnetic metal material.

5. A process for forming a liquid reservoir of a shock absorber, for manufacturing a shock absorber according to claims 1 to 4, wherein the end of the liquid reservoir is subjected to induction hardening, heated, molded to form a material accumulation region, and extruded by a die to form a bottom cover.

6. The process for forming a liquid receiver of a shock absorber as set forth in claim 5, wherein the end portion of the liquid receiver is subjected to the high-frequency quenching and the heating by placing the end portion of the liquid receiver in a high-frequency electromagnetic coil, and the high-frequency electromagnetic coil generates eddy current to heat the end portion of the liquid receiver.

7. The process of claim 5, wherein the shaping of the heated end portion of the liquid container to form the material accumulation region is performed by rotating the liquid container in an axial direction and pressing the end portion of the liquid container by applying an external force in a radial direction after the liquid container is heated to a plastic state, and the diameter of the end portion of the liquid container is reduced to a seal to form the material accumulation region.

8. The process of claim 7, wherein the step of forming the bottom cover by extruding the material stacking area of the liquid container using the mold comprises forming a male mold in the liquid container, forming a female mold outside the end of the liquid container, and shaping the material stacking area by the male mold and the female mold when the liquid container is heated to a plastic state to form the shape of the bottom cover.

9. The process of claim 6, wherein the amplitude and frequency of the high frequency coil are matched to the material of the liquid tank.

10. The process of claim 8, wherein the male mold and the female mold are matched to the shape of the material stacking area of the liquid container and the bottom cover.

Technical Field

The invention relates to the technical field of vibration reduction equipment, in particular to a vibration reducer and a liquid storage cylinder forming process thereof.

Background

In the existing shock absorber, the bottom cover and the liquid storage cylinder are usually designed in a split mode, the bottom cover and the liquid storage cylinder need to be combined together through welding, and certain defects exist in the welding of the bottom cover and the liquid storage cylinder. Firstly, the welding process is difficult to control, and the strength consistency between welded finished products is difficult to achieve; secondly, insufficient welding and false welding are easy to occur in the welding process, so that the shock absorber leaks oil or cracks and fails; in addition, welding slag generated after welding is not easy to clean, and uncleaned welding slag is easy to enter oil liquid of the shock absorber, so that the product performance of the shock absorber is influenced.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention provides a shock absorber and a liquid storage cylinder forming process thereof, aiming at the technical problem that the welding process between a bottom cover and a liquid storage cylinder has defects, the liquid storage cylinder and the bottom cover are integrally formed, the continuity and the uniformity of materials are ensured, the problem of poor strength consistency after the liquid storage cylinder and the bottom cover are welded is solved, no welding seam exists between the liquid storage cylinder and the bottom cover, the problems of insufficient welding and false welding in the welding process are solved, welding slag does not exist, and the influence of the welding slag on the shock absorber is avoided.

2. Technical scheme

In order to solve the problems, the technical scheme provided by the invention is as follows:

a shock absorber comprises a liquid storage cylinder and a bottom cover, wherein the liquid storage cylinder and the bottom cover are integrally formed, a working cylinder is arranged in the liquid storage cylinder, a piston rod is arranged in the working cylinder, a recovery valve system is arranged at the end part of the piston rod, and a compression valve system is arranged at the bottom cover.

Optionally, a positioning portion is arranged in the working cylinder, and the piston rod is movably matched with the positioning portion.

Optionally, a mounting part is arranged on one side of the bottom cover.

Optionally, the liquid storage barrel and the bottom cover are both made of conductive and ferromagnetic metal materials.

A liquid storage cylinder forming process of the shock absorber is used for processing the liquid storage cylinder of the shock absorber, the end portion of the liquid storage cylinder is subjected to high-frequency quenching and heating, the end portion of the heated liquid storage cylinder is molded to form a material accumulation area, and the material accumulation area of the liquid storage cylinder is extruded by a die to form a bottom cover.

Alternatively, the end portion of the liquid reservoir is subjected to high-frequency quenching and heating by placing the end portion of the liquid reservoir into a high-frequency electromagnetic coil, and the high-frequency electromagnetic coil generates eddy current to heat the end portion of the liquid reservoir.

Alternatively, the heated end portion of the liquid container is shaped to form the material accumulation region by rotating the liquid container in an axial direction and pressing the end portion of the liquid container by applying an external force in a radial direction after the liquid container is heated to a plastic state, and the diameter of the end portion of the liquid container is reduced to a seal to form the material accumulation region.

Optionally, the process method for forming the bottom cover by extruding the material accumulation area of the liquid storage barrel by using the mold comprises the steps of arranging a male mold in the liquid storage barrel, arranging a female mold outside the end part of the liquid storage barrel, and shaping the material accumulation area by using the male mold and the female mold when the liquid storage barrel is heated to a plastic state to form the shape of the bottom cover.

Optionally, the amplitude and frequency of the high frequency coil is matched to the material of the reservoir.

Optionally, the male and female molds match the shape of the material accumulation area of the reservoir and the bottom cover.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the liquid storage cylinder and the bottom cover are integrally formed, so that the continuity and the uniformity of materials are guaranteed, the problem of poor strength consistency after the liquid storage cylinder and the bottom cover are welded is solved, no welding seam exists between the liquid storage cylinder and the bottom cover, the problems of insufficient welding and false welding in welding are solved, welding slag does not exist, and the influence of the welding slag on the shock absorber is avoided.

Drawings

Fig. 1 is a schematic view of a conduction structure of a shock absorber according to an embodiment of the present invention.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.

Example 1

Referring to fig. 1, the present embodiment provides a shock absorber, which includes a liquid tank 100 and a bottom cover 101, wherein the liquid tank 100 and the bottom cover 101 are integrally formed, a cylinder 102 is disposed in the liquid tank 100, a piston rod 103 is disposed in the cylinder 102, a restoring valve system 104 is disposed at an end of the piston rod 103, and a compression valve system 105 is disposed at the bottom cover 101.

In the damper of the embodiment, the end of the liquid storage cylinder 100 is heated in a high-frequency quenching mode, the end of the liquid storage cylinder 100 is subjected to plasticity, so that the bottom cover 101 is formed, the liquid storage cylinder 100 and the bottom cover 101 are integrally formed, the continuity and the uniformity of materials are ensured, the problem of poor strength consistency after the liquid storage cylinder 100 and the bottom cover 101 are welded is solved, no welding seam exists between the liquid storage cylinder 100 and the bottom cover 101, the problems of insufficient welding and false welding in welding are solved, no welding slag exists, and the influence of the welding slag on the damper is avoided.

In the present embodiment, the oil is stored in the liquid storage tank 100, and the sealing function of the oil can be ensured by integrally forming the liquid storage tank 100 and the bottom cover 101. The compression valve system 105 and the recovery valve system 104 are utilized in the working cylinder 102, and the function of controlling the oil flow is achieved when the piston rod 103 moves, so that the damping force is provided for the movement of the piston rod 103, and the vibration reduction and absorption effects of the vibration absorber are achieved.

As an optional implementation manner of this embodiment, a positioning portion 104 is disposed in the working cylinder 102, and the piston rod 103 is movably engaged with the positioning portion 104. In the present embodiment, in order to ensure the stability of the movement of the piston rod 103 of the shock absorber, a positioning portion 104 is provided in the working cylinder 102, the piston rod 103 passes through the positioning portion 104, and the positioning portion 104 is used to limit the movement of the piston rod 103.

As an alternative embodiment of this embodiment, a mounting portion is provided on one side of the bottom cover 101. In order to facilitate the installation and assembly of the shock absorber and the vehicle body, an installation part can be arranged on one side of the bottom cover 101, and the installation part is matched with the vehicle body structure or the suspension structure so as to realize the firm combination of the shock absorber and the vehicle body.

As an alternative embodiment of this embodiment, the liquid storage cylinder 100 and the bottom cover 101 are both made of conductive and ferromagnetic metal materials. In order to ensure that the liquid container 100 and the bottom cover 101 can be heated by the principle of electromagnetic induction, the liquid container 100 and the bottom cover 101 of the present embodiment can be made of conductive and ferromagnetic metal materials, such as steel, cast iron or pig iron.

Example 2

This embodiment proposes a process for forming a liquid reservoir of a shock absorber, which is used to manufacture the liquid reservoir of the shock absorber, the end of the liquid reservoir 100 is quenched by high frequency, heated, the heated end of the liquid reservoir 100 is shaped to form a material stacking region, and the material stacking region of the liquid reservoir 100 is extruded by a die to form the bottom cover 101.

As an alternative embodiment of this embodiment, the end of the liquid tank 100 is heated by high frequency quenching, wherein the end of the liquid tank 100 is placed in a high frequency electromagnetic coil, and the high frequency electromagnetic coil generates eddy current to heat the end of the liquid tank 100.

As an alternative embodiment of this embodiment, the process of shaping the end of the heated cartridge 100 to form the material accumulation region is that, after the cartridge 100 is heated to the plastic state, the cartridge 100 is rotated in the axial direction and an external force is applied in the radial direction to squeeze the end of the cartridge 100, and the diameter of the end of the cartridge 100 is reduced to the seal to form the material accumulation region.

As an alternative embodiment of this embodiment, the bottom cover 101 is formed by extruding the material stacking area of the liquid storage barrel 100 by using a mold, wherein a male mold is disposed in the liquid storage barrel 100, a female mold is disposed outside the end of the liquid storage barrel 100, and when the liquid storage barrel 100 is heated to a plastic state, the material stacking area is shaped by using the male mold and the female mold to form the shape of the bottom cover 100.

As an alternative embodiment of this embodiment, the amplitude and frequency of the high frequency coil is matched to the material of the reservoir cartridge 100. Based on different materials and processing requirements of the liquid storage cylinder 100, the high-frequency coil performs high-frequency quenching and heating on the liquid storage cylinder 100 made of different materials, the required current amplitude and frequency are different, and after the current amplitude and frequency of the high-frequency coil are matched with the materials of the liquid storage cylinder 100, a better processing effect can be achieved.

As an alternative embodiment of this embodiment, the male and female molds are matched in shape to the material stacking area of the reservoir cartridge 100 and the bottom cover 101.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.