Aluminum alloy profile for automobile air suspension sheath and preparation process

Abstract

The invention discloses an aluminum alloy profile for an automobile air suspension sheath and a preparation process, and aims to provide the aluminum alloy profile for the automobile air suspension sheath, which is optimized in aluminum profile structure, good in use effect and good in preparation and processing process effect, and the preparation process of the aluminum alloy profile for the automobile air suspension sheath. And the upper end of the main body pipe is provided with a flanging. The aluminum profile has the beneficial effects that the aluminum profile is optimized in structure and good in using effect, and the preparing and machining process effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum profile processing, in particular to an aluminum alloy profile for an automobile air suspension protective sleeve and a preparation process. BACKGROUND

[0002] The automobile air suspension is a common shock absorption method for automobiles at present, which is mainly applied to various vehicle types such as trailers, trucks and buses, and reduces the bumping of the vehicle during driving and the impact of the shock on the vehicle body through the air suspension assembly. A protective cover is arranged on the outer side of the air suspension, and a protective sleeve is sleeved on the outer side of the protective cover. The middle part of the protective sleeve is provided with a sleeve supported by an aluminum profile to improve the protection effect.

[0003] The existing aluminum alloy profile is a cylindrical structure, which is simple in structure and poor in use effect. At the same time, the preparation process and processing effect of the existing aluminum alloy profile are poor, and the aluminum alloy profile needs to be improved and the preparation process needs to be optimized. SUMMARY

[0004] The present application is to overcome the shortcomings of poor use effect and poor preparation and processing effect of the existing aluminum profile, and provides an aluminum profile structure optimization, good use effect, and good preparation and processing effect of an aluminum alloy profile for an automobile air suspension protective sleeve and a preparation process.

[0005] In order to achieve the above purpose, the following technical scheme is adopted in the present application: An aluminum alloy profile for an automobile air suspension protective sleeve, comprising: a main pipe, the main pipe is a cylindrical structure, and the upper end of the main pipe is provided with a flange.

[0006] The aluminum alloy profile comprises a main pipe which is extruded into a cylindrical shape, and a flange is arranged at the upper end of the main pipe. The flange angle is 10-20°. The structure design can facilitate installation on the air suspension, making installation operation convenient and having good use effect.

[0007] Another technical scheme is also described in the present application: a preparation process of an aluminum profile for an automobile air suspension protective sleeve, comprising the following steps: S1, heating the aluminum ingot, heating the aluminum ingot to 450-500 degrees; S2, extruding the main pipe, putting the aluminum ingot into the extruding device, extruding and cutting to form the main pipe; S3, shaping the main pipe, flanging the side end of the main pipe.

[0008] In the preparation process, first heat the aluminum ingot to 450-500 DEG C, ensure that the aluminum ingot subsequent processing effect is good. The main pipe adopts the process method of extrusion forming, the aluminum ingot is put into the extrusion device, through extrusion forming, the cylindrical pipe body is made, according to the size of the protective sleeve aluminum alloy profile, the main pipe is obtained. Then the main pipe is shaped, the end of the main pipe is shaped and flanged through the shaping die, the air suspension protective sleeve aluminum alloy profile is obtained. Using this process, the processing effect is good, the obtained aluminum alloy profile is stable, and the subsequent air suspension assembly and installation operation is convenient.

[0009] As preferred, the extrusion device in step S2 comprises: an extrusion cylinder, a moving group is installed at the lower end of the extrusion cylinder to drive the extrusion cylinder to move; a forming die is installed at the rear end of the extrusion cylinder, and a top cylinder is connected to the forming die; an extrusion rod is sleeved with a plug rod, and an extrusion cylinder is connected to the front end of the extrusion rod; an end cutter is arranged at the top of the extrusion cylinder, and a telescopic hydraulic cylinder one is connected to the end cutter. In the extrusion device in step S2 of the above process, the extrusion cylinder is provided with a moving group at the lower end, which can drive the extrusion cylinder to move horizontally. The forming die is installed at the rear end inside the extrusion cylinder, and the forming die is provided with a top cylinder outside, which can be used to support the forming die, ensure the stability of the forming die during extrusion, and ensure the extrusion forming effect. The middle part of the extrusion rod is provided with a mounting hole for installing the plug rod, which is used as the plug core of the forming die. The plug rod is ejected and connected to the forming die to form a forming cavity. The extrusion cylinder is arranged at the front end of the extrusion rod, which is a cavity driven by a hydraulic machine. The plug rod and the extrusion rod are connected to the extrusion cylinder, and during extrusion forming, the extrusion cylinder first drives the plug rod to move towards the forming die, then drives the plug rod and the extrusion rod to move synchronously, and finally completes the extrusion forming. The end cutter is arranged above the extrusion cylinder, and the telescopic hydraulic cylinder one is connected to the end cutter. The telescopic hydraulic cylinder one moves downward to cut the end of the extrusion-formed main pipe, so as to obtain the main pipe for subsequent shaping processing of the main pipe, and ensure the good forming effect of the aluminum profile.

[0010] As preferred, the moving group comprises a moving sliding slot, a moving slider is slidingly connected in the moving sliding slot, the top of the moving slider is connected with the extrusion cylinder, a telescopic hydraulic cylinder two is installed outside the moving sliding slot, and the telescopic hydraulic cylinder two is connected with the moving slider. The end of the moving sliding slot is connected with the telescopic hydraulic cylinder two, the moving slider is installed inside the moving sliding slot, the telescopic end of the telescopic hydraulic cylinder two is connected with the moving slider, the telescopic action of the telescopic hydraulic cylinder two can drive the moving slider to move, the moving slider is connected with the extrusion cylinder, the structure can drive the extrusion cylinder to move after the extrusion molding of the main pipe is completed, the structure can conveniently lower the end cutter to cut the main pipe, the processing of the main pipe is completed, the structure can conveniently process the main pipe, and the processing effect is improved.

[0011] As preferred, a heating sleeve piece is sleeved outside the extrusion cylinder, the heating sleeve piece is an arc-shaped piece, and a telescopic cylinder one is connected outside the heating sleeve piece. The arc-shaped piece is provided outside the extrusion cylinder, the telescopic cylinder one is installed outside the heating sleeve piece, the telescopic cylinder one can drive the heating sleeve piece to contact and sleeve with the extrusion cylinder, so that the heating sleeve piece can heat the extrusion cylinder, heat compensation is ensured in the extrusion process, and the extrusion molding effect is good.

[0012] As preferred, a support plate is arranged at the front end of the extrusion cylinder, the support plate is an arc-shaped plate, and a telescopic cylinder two is arranged at the lower end of the support plate. The arc-shaped plate is arranged at the front end of the extrusion cylinder, the telescopic cylinder two is arranged at the lower end of the support plate, the telescopic cylinder two can lift the heated aluminum ingot, the aluminum ingot is conveniently pushed into the extrusion cylinder by the extrusion rod to complete the extrusion molding of the main pipe, the structure can conveniently and simply extrude and mold, and the processing effect is improved.

[0013] As preferred, a fixing ring is arranged at the end of the extrusion rod, the fixing ring is provided with a plurality of fixing holes, an adjusting ring is slidingly sleeved on the extrusion rod, an adjusting rod is connected with the adjusting ring, the adjusting rod is inserted into the fixing hole, a connecting table is connected with the adjusting rod, and the connecting table is connected with the extrusion cylinder. The fixing ring is arranged at the end of the extrusion rod and is provided with a plurality of fixing holes, the adjusting ring is sleeved and installed on the extrusion rod and can slide along the extrusion rod, the adjusting rod is installed on the adjusting ring and is connected with the connecting table at the end of the inserting rod, the connecting table is connected with the extrusion rod, the structure can play a guiding role when the inserting rod is pushed to the molding die, the stable pushing of the inserting rod is ensured, the inserting rod can drill the aluminum ingot in the extrusion cylinder, the inserting rod and the molding die are combined to form an extrusion molding cavity, and the extrusion processing effect is good.

[0014] Preferably, a stabilizing spring is connected between the fixed ring and the adjusting ring, and the stabilizing spring is sleeved with the adjusting rod. This structure allows the connecting platform to contact the end of the extrusion rod after the extrusion cylinder pushes the insert rod towards the forming die. As the extrusion cylinder continues to push the extrusion rod, the extrusion rod can extrude the aluminum ingot, completing the extrusion forming of the main tube, thus ensuring a good extrusion processing effect.

[0015] Preferably, the top cylinder sidewall is provided with several cooling holes, which are connected to cooling pipes, and the cooling pipes are externally connected to a cooling pump. A drain hole is provided at the lower end of the top cylinder sidewall, and the cooling holes on the sidewall are externally connected to cooling pipes, which are in turn connected to a cooling pump. This cooling pump can be a liquid-cooled pump or an air-cooled pump. When liquid cooling is required, water can be sprayed into the top cylinder to cool the extruded main tube. When air cooling is required, cold air can be sprayed into the top cylinder to cool the extruded main tube. This structure ensures good cooling effect, guarantees the quality of the extruded main tube, and thus ensures good processing results.

[0016] Preferably, the top end of the insert rod is provided with a beveled insertion hole. This beveled insertion hole facilitates drilling of the aluminum ingot, thereby improving the extrusion molding effect.

[0017] The beneficial effects of this invention are: the aluminum profile has an optimized structure, good performance, and good manufacturing and processing effects. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the main tube of the present invention; Figure 2 This is a perspective view of the extrusion device of the present invention; Figure 3 This is a cross-sectional view of the extrusion device of the present invention; Figure 4 This is a partial cross-sectional view of the extrusion molding process of the present invention.

[0019] In the attached diagram: 1. Main tube; 2. Flanged edge; 3. Extrusion cylinder; 4. Moving assembly; 5. Forming mold; 6. Top cylinder; 7. Extrusion rod; 8. Insert rod; 9. Extrusion cylinder; 10. End cutter; 11. Telescopic hydraulic cylinder one; 30. Heating sleeve; 31. Telescopic cylinder one; 32. Support plate; 33. Telescopic cylinder two; 40. Moving slide; 41. Moving slider; 42. Telescopic hydraulic cylinder two; 60. Cooling hole; 61. Cooling pipe; 70. Fixing ring; 71. Fixing hole; 72. Adjusting ring; 73. Adjusting rod; 80. Connecting platform; 81. Insertion hole bevel. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components illustrated in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0024] Example 1, as Figure 1 As shown, an aluminum alloy profile for automotive air suspension covers includes: a main tube 1, which is a cylindrical structure, and a flange 2 is provided at the upper end of the main tube 1.

[0025] Example 2, as Figures 2-4 As shown, a manufacturing process for aluminum profiles used in automotive air suspension bushings includes the following steps: S1. Heating the aluminum ingot: Heat the aluminum ingot to 450-500 degrees Celsius. S2, Main tube 1 is extruded and formed by feeding aluminum ingots into an extrusion device, extruding and forming the main tube 1 by cutting. S3. Shaping the main tube 1: Flanging one end of the main tube 1.

[0026] The extrusion device mentioned in step S2 includes: The extrusion cylinder 3 has a moving assembly 4 installed at its lower end, which can drive the extrusion cylinder 3 to move. A forming mold 5 is installed at the rear end of the extrusion cylinder 3, and a top cylinder 6 is connected to the outside of the forming mold 5; The extrusion rod 7 is sleeved with an insertion rod 8, and the front end of the extrusion rod 7 is connected to an extrusion cylinder 9. Both the extrusion rod 7 and the insertion rod 8 are connected to the extrusion cylinder 9. An end cutter 10 is disposed on the top of the extrusion cylinder 3, and the end cutter 10 is connected to a telescopic hydraulic cylinder 11.

[0027] The movable assembly 4 includes a movable slide 40, in which a movable slider 41 is slidably connected. The top of the movable slider 41 is connected to the extrusion cylinder 3. A telescopic hydraulic cylinder 42 is installed on the outside of the movable slide 40 and is connected to the movable slider 41.

[0028] A heating sleeve 30 is sleeved on the outside of the extrusion cylinder 3. The heating sleeve 30 is an arc-shaped piece. A telescopic cylinder 31 is connected to the outside of the heating sleeve 30.

[0029] The front end of the extrusion cylinder 3 is provided with a support plate 32, which is an arc-shaped plate, and the lower end of the support plate 32 is provided with a telescopic cylinder 33.

[0030] The end of the extrusion rod 7 is provided with a fixing ring 70, the fixing ring 70 is provided with a plurality of fixing holes 71, the extrusion rod 7 is slidably sleeved with an adjusting ring 72, the adjusting ring 72 is connected to an adjusting rod 73, the adjusting rod 73 is inserted into the fixing holes 71, the end of the insertion rod 8 is connected to a connecting platform 80, the connecting platform 80 is connected to the adjusting rod 73, and the connecting platform 80 is connected to the extrusion cylinder 9.

[0031] A stabilizing spring is connected between the fixed ring 70 and the adjusting ring 72, and the stabilizing spring is sleeved with the adjusting rod 73.

[0032] The top cylinder 6 has several cooling holes 60 on its side wall. The cooling holes 60 are connected to cooling pipes 61, and the cooling pipes 61 are connected to a cooling pump.

[0033] The top of the insertion rod 8 is provided with a beveled insertion hole 81.

[0034] The working principle of this invention is as follows:Figures 2-4 As shown, the extrusion device described in step S2 of the above process includes an extrusion cylinder 3. A moving assembly 4 is provided at the lower end of the extrusion cylinder 3, which can drive the extrusion cylinder 3 to move horizontally. A forming mold 5 is installed inside the rear end of the extrusion cylinder 3, and a top cylinder 6 is provided on the outside of the forming mold 5. The top cylinder 6 can be used to support the forming mold 5 to ensure the stability of the forming mold 5 during extrusion and to ensure the extrusion forming effect. An extrusion rod 7 is provided with a mounting hole in the middle for installing an insert rod 8. The insert rod 8 serves as the core of the forming mold 5. After the insert rod 8 is pushed out, it fits into the forming mold 5 to form a forming cavity. An extrusion cylinder 9 is provided at the front end of the extrusion rod 7. The extrusion cylinder 9 is a cavity driven by a hydraulic press. The insert rod 8 and the extrusion rod 7 are both connected to the extrusion cylinder 9. During extrusion forming, the extrusion cylinder 9 first pushes the insert rod 8 towards the forming mold 5, and then pushes the insert rod 8 and the extrusion rod 7 to move synchronously to complete the extrusion forming. An end cutter 10 is provided above the extrusion cylinder 3. The end cutter 10 is connected to a telescopic hydraulic cylinder 11. The telescopic hydraulic cylinder 11 moves downward to cut the end of the extruded main tube 1 to obtain the main tube 1, so as to carry out subsequent shaping processing of the main tube 1 and ensure good forming effect of aluminum profile.

[0035] The movable assembly 4 is equipped with a movable slide 40, the end of which is connected to a telescopic hydraulic cylinder 42. A movable slider 41 is installed inside the movable slide 40. The movable slider 41 is connected to the telescopic end of the telescopic hydraulic cylinder 42. The telescopic movement of the telescopic hydraulic cylinder 42 can drive the movable slider 41 to move. At the same time, the movable slider 41 is connected to the extrusion cylinder 3. This structure can drive the extrusion cylinder 3 to move after the main tube 1 has been extruded and formed. The movement of this structure can facilitate the downward movement of the end cutter 10 to cut the main tube 1 and complete the processing of the main tube 1. This structure can facilitate the processing operation of the main tube 1 and improve the processing effect.

[0036] A heating sleeve 30 is provided on the outside of the extrusion cylinder 3. The heating sleeve 30 is an arc-shaped sheet. A telescopic cylinder 31 is installed on the outside of the heating sleeve 30. The telescopic cylinder 31 can drive the heating sleeve 30 to contact and sleeve with the extrusion cylinder 3, so that the heating sleeve 30 can heat the extrusion cylinder 3, ensuring thermal compensation during the extrusion process and ensuring good extrusion molding effect.

[0037] The support plate 32 at the front end of the extrusion cylinder 3 is an arc-shaped plate. A telescopic cylinder 33 is provided at the lower end of the support plate 32. The telescopic cylinder 33 can lift the heated aluminum ingot, so that the extrusion rod 7 can push the aluminum ingot into the extrusion cylinder 3 to complete the extrusion forming of the main tube 1. This structure makes the extrusion forming operation convenient and simple, and improves the processing effect.

[0038] The extrusion rod 7 has a fixing ring 70 at its end with several fixing holes 71. An adjusting ring 72 is fitted onto the extrusion rod 7 and can slide along it. An adjusting rod 73 is installed on the adjusting ring 72 and passes through the fixing holes 71 to connect to the connecting platform 80 at the end of the insert rod 8. The connecting platform 80 is also connected to the extrusion rod 7. This structure guides the insert rod 8 as it is pushed toward the forming mold 5, ensuring stable pushing of the insert rod 8. This allows the insert rod 8 to drill holes in the aluminum ingot inside the extrusion cylinder 3, so that the insert rod 8 and the forming mold 5 combine to form an extrusion forming cavity, ensuring good extrusion processing results.

[0039] A stabilizing spring is connected between the fixed ring 70 and the adjusting ring 72. The stabilizing spring is sleeved with the adjusting rod 73. This structure allows the connecting platform 80 to contact the end of the extrusion rod 7 after the extrusion cylinder 9 pushes the insertion rod 8 towards the forming mold 5. When the extrusion cylinder 9 continues to push the extrusion rod 7, the extrusion rod 7 can extrude the aluminum ingot and complete the extrusion forming of the main tube 1, thereby ensuring a good extrusion processing effect.

[0040] The top cylinder 6 has a drain hole at the lower end of its side wall, and several cooling holes 60 on its side wall are connected to cooling pipes 61. These cooling pipes 61 are connected to a cooling pump, which can be a liquid cooling pump or an air cooling pump. When liquid cooling is required, water can be sprayed into the top cylinder 6 to cool the extruded main tube 1. When air cooling is required, cold air can be sprayed into the top cylinder 6 to cool the extruded main tube 1. This structure ensures good cooling effect, guarantees the quality of the extruded main tube 1, and thus ensures good processing effect.

[0041] The top of the insert rod 8 is provided with an insertion hole bevel 81, which facilitates the insert rod 8 to drill holes in the aluminum ingot, thereby improving the extrusion molding effect.

[0042] The extrusion device of this invention operates as follows: First, an aluminum ingot is placed on a support plate 32. The support plate 32 is then lifted by a telescopic cylinder 33 located below it, aligning the aluminum ingot with the extrusion cylinder 3. A telescopic hydraulic cylinder 42 pushes the extrusion rod 7, pushing the aluminum ingot into the extrusion cylinder 3. Next, the heating sleeve 30, due to the telescopic movement of the telescopic cylinder 31, is pressed tightly against the extrusion cylinder 3, achieving temperature compensation during extrusion and ensuring the correct temperature. Then, the extrusion cylinder 9 continues to move forward, pushing the insertion rod 8 towards the forming die 5. The insertion rod 8 drills a hole in the aluminum ingot and moves to the forming die 5, forming an extrusion cavity with it. Finally, the extrusion cylinder 9 continues to move forward, pushing the extrusion rod 7 to extrude the aluminum ingot, achieving extrusion forming. After extrusion molding is completed, the telescopic hydraulic cylinder 42 drives the movable slider 41 to move, so that the tail aluminum ingot of the extruded main tube 1 is exposed under the end cutter 10. The telescopic cylinder 31 drives the heating plate to move outward, so that the end cutter 10 can move down to cut the tail aluminum ingot of the extruded main tube 1, thus completing the extrusion molding and obtaining the required main tube 1.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An aluminum alloy profile for automotive air suspension bushings, characterized in that, include: The main tube (1) is a cylindrical structure, and the upper end of the main tube (1) is provided with a flange (2).

2. A process for manufacturing aluminum profiles for automotive air suspension bushings according to claim 1, characterized in that the steps include... as follows: S1. Heating the aluminum ingot: Heat the aluminum ingot to 450-500 degrees Celsius. S2, Main tube (1) extrusion molding: aluminum ingots are put into the extrusion device, extruded and molded, and then cut to form the main tube (1). S3. Shaping the main tube (1): Flanging one end of the main tube (1).

3. The manufacturing process of aluminum profiles for automotive air suspension bushings according to claim 2, characterized in that, The extrusion device mentioned in step S2 includes: The extrusion cylinder (3) has a moving assembly (4) installed at its lower end, which can drive the extrusion cylinder (3) to move. A forming mold (5) is installed at the rear end of the extrusion cylinder (3), and a top cylinder (6) is connected to the outside of the forming mold (5). A pressing rod (7) is sleeved with an insert rod (8), and a pressing cylinder (9) is connected to the front end of the pressing rod (7). Both the pressing rod (7) and the insert rod (8) are connected to the pressing cylinder (9). End cutter (10), the end cutter (10) is set on the top of the extrusion cylinder (3), and the end cutter (10) is connected to a telescopic hydraulic cylinder (11).

4. The manufacturing process of aluminum profile for automotive air suspension bushing according to claim 3, characterized in that, The moving assembly (4) includes a moving slide (40), a moving slider (41) is slidably connected in the moving slide (40), the top of the moving slider (41) is connected to the extrusion cylinder (3), and a telescopic hydraulic cylinder (42) is installed on the outside of the moving slide (40), and the telescopic hydraulic cylinder (42) is connected to the moving slider (41).

5. The manufacturing process of aluminum profile for automotive air suspension bushing according to claim 3, characterized in that, A heating sleeve (30) is sleeved on the outside of the extrusion cylinder (3). The heating sleeve (30) is an arc-shaped piece. A telescopic cylinder (31) is connected to the outside of the heating sleeve (30).

6. The manufacturing process of aluminum profile for automotive air suspension bushing according to claim 3, characterized in that, The front end of the extrusion cylinder (3) is provided with a support plate (32), which is an arc-shaped plate, and the lower end of the support plate (32) is provided with a telescopic cylinder (33).

7. The manufacturing process of aluminum profile for automotive air suspension bushing according to claim 3, characterized in that, The end of the extrusion rod (7) is provided with a fixing ring (70), the fixing ring (70) is provided with a plurality of fixing holes (71), the extrusion rod (7) is slidably sleeved with an adjusting ring (72), the adjusting ring (72) is connected to an adjusting rod (73), the adjusting rod (73) is inserted into the fixing hole (71), the end of the insertion rod (8) is connected to a connecting platform (80), the connecting platform (80) is connected to the adjusting rod (73), and the connecting platform (80) is connected to the extrusion cylinder (9).

8. The manufacturing process of aluminum profile for automotive air suspension bushing according to claim 7, characterized in that, A stabilizing spring is connected between the fixed ring (70) and the adjusting ring (72), and the stabilizing spring is sleeved with the adjusting rod (73).

9. The manufacturing process of aluminum profile for automotive air suspension bushing according to claim 3, characterized in that, The top cylinder (6) has several cooling holes (60) on its side wall. The cooling holes (60) are connected to cooling pipes (61), and the cooling pipes (61) are connected to external cooling pumps.

10. The manufacturing process of aluminum profile for automotive air suspension bushing according to claim 3, characterized in that, The top of the insertion rod (8) is provided with an insertion hole bevel (81).

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