CN113830063A - Aluminum alloy air cylinder and preparation method thereof - Google Patents
Aluminum alloy air cylinder and preparation method thereof Download PDFInfo
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- CN113830063A CN113830063A CN202111278962.XA CN202111278962A CN113830063A CN 113830063 A CN113830063 A CN 113830063A CN 202111278962 A CN202111278962 A CN 202111278962A CN 113830063 A CN113830063 A CN 113830063A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/06—Applications or arrangements of reservoirs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
Abstract
The application relates to an aluminum alloy air cylinder and a preparation method thereof, which belong to the technical field of automobile air cylinders and comprise the following steps: the air cylinder body is formed by rolling and welding metal plates, and the ports at the two ends of the air cylinder body are rolled and reduced in diameter to form an end roller compression diameter section; and the end face of the flat and straight section of the air cylinder end cover is mutually attached to the end face of the compressed diameter section of the end roller and is connected with the end face of the compressed diameter section of the end roller through a circumferential ring welding line. This application is convenient for the port at gas receiver barrel both ends and the terminal surface butt joint of gas receiver end cover to be connected, has improved the butt joint precision and the welding quality of gas receiver barrel with the gas receiver end cover, has guaranteed the seal performance and the product quality of aluminum alloy gas receiver. The air cylinder end cover is installed in the air cylinder body without the matching of an end cover necking, the overlapping section of the air cylinder end cover and the air cylinder body in a sleeved mode is eliminated, and the light weight of a finished product is achieved.
Description
Technical Field
The application relates to the technical field of automobile air cylinders, in particular to an aluminum alloy air cylinder and a preparation method thereof.
Background
The air cylinder is an important energy storage part of an air brake vehicle type so as to ensure good operation of the braking performance of the vehicle. The air cylinder mainly comprises an air cylinder body, end covers (end covers at two ends and a partition plate of the multi-cavity air cylinder) and the like. The cylinder body is mainly formed by roll welding of carbon steel or aluminum alloy plates of specific specifications which are required to be cut according to the size of the air cylinder, the roundness of the roll-welded cylinder body is insufficient, and surplus height exists on the surface of a welding line mostly. The outer diameter of the partition board is matched with the inner diameter of the barrel, a barrel welding seam surplus height avoiding groove is reserved on the partition board at the matching position of the partition board and the barrel, and the partition board and the barrel are welded into a whole after being pressed into a required position from the end part of the barrel by means of a tool when needed. The end cover necking is formed with a straight-through matching spigot, the length of the matching spigot reaches 6-12 mm, the head of the matching spigot is provided with a guide fillet with the radius of 2-3 mm, the end cover is sleeved at the end of the cylinder body through the matching spigot, and then the cylinder body of the air cylinder and the end cover are welded into a whole.
In the related art, the cylinder is formed by roll welding of plates, the poor roundness of the cylinder needs to be pressed into the cylinder by sleeving an end cover necking to ensure the assembly quality, and the overlapped part cannot bear the load and is invalid in weight, so that the material waste and the weight increase are caused. The residual height of the back of the longitudinal seam causes that the assembly clearance between the end cover and the barrel in the circumferential direction of the whole circumferential seam is different when the end cover of the necking end is sleeved on the barrel. The misalignment along the longitudinal seam direction causes the end cover to have positioning error during welding and the center of the circular seam of the end cover to be longitudinally deviated. Welding defects such as incomplete penetration, burn-through and the like easily occur at the end part of the longitudinal seam, and the cross part of the longitudinal seam of the cylinder body and the two ends of the circular seam of the end cover needs to be subjected to repair welding by special stations, so that the risk of welding quality of the circular seam of the end cover is easily increased.
The baffle external diameter of multicavity gas receiver is the same with the barrel internal diameter, causes the extrusion with the body welding seam easily in the baffle assembling process, causes the cleanliness that the burr that fish tail, fish tail produced influences the gas receiver in the use to the body inner wall. The assembly gaps of the partition plate for reserving the weld reinforcement avoiding groove and the straight section of the air storage cylinder barrel lap joint air storage cylinder end cover are different, the air tightness of the partition plate weld is poor easily during welding, and the welding seam crossing part of the barrel longitudinal seam and the partition plate avoiding groove needs repair welding to influence the product performance.
Disclosure of Invention
The embodiment of the application provides an aluminum alloy air cylinder and a preparation method thereof, and aims to solve the problems that in the related art, the roundness of a cylinder body is poor, an end cover is required to be sleeved and pressed into the cylinder body through a necking so as to guarantee the assembly quality, overlapping parts cannot bear the weight, and invalid weight causes material waste and weight increase.
The embodiment of this application provides in a first aspect an aluminum alloy gas receiver, includes:
the air cylinder body is formed by welding metal plates in a rolling mode, the ports at the two ends of the air cylinder body are rolled and reduced in diameter to form an end roller compression diameter section, and the diameter of the end roller compression diameter section is smaller than that of the air cylinder body;
the gas receiver end cover, the gas receiver end cover includes the gas receiver end cover straight section of being connected with tip roll-in undergauge section, the diameter of the straight section of gas receiver end cover is the same with the diameter of tip roller compression footpath section, the terminal surface of the straight section of gas receiver end cover and the terminal surface of tip roller compression footpath section are laminated each other and are connected through circumferential ring welding seam.
In some embodiments: the middle part of the air storage cylinder body is rolled and reduced in diameter to form a middle roller compression diameter section, and the inner diameter of the middle roller compression diameter section is smaller than that of the end roller compression diameter section.
In some embodiments: still include intermediate bottom, intermediate bottom is located the gas receiver barrel and separates into first cavity and second cavity with the gas receiver barrel, intermediate bottom's outer wall and the inner wall of middle part roller compression footpath section are laminated each other, intermediate bottom and the inner wall welded connection of middle part roller compression footpath section guarantee the welding seam gas tightness.
In some embodiments: the middle partition plate comprises a straight circular ring-shaped connecting section and a partition plate, wherein the straight circular ring-shaped connecting section is welded with the middle rolling reducing section, one end of the partition plate is located at the straight circular ring-shaped connecting section and is in smooth transition and used for partitioning the cylinder body of the air storage cylinder, the outer wall of the straight circular ring-shaped connecting section is attached to the inner wall of the middle roller compressing diameter section, and the straight circular ring-shaped connecting section and the partition plate are of an aluminum alloy material integrated structure.
In some embodiments: the difference between the diameter of the cylinder body of the air cylinder and the diameter of the compression diameter section of the end roller is not less than four times of the wall thickness of the cylinder body of the air cylinder.
In some embodiments: the air cylinder body and the air cylinder end cover are both made of aluminum alloy materials.
In a second aspect, the present application provides a method for manufacturing an aluminum alloy gas cylinder, including the following steps:
preparing an air reservoir barrel, namely preparing an aluminum alloy plate with a set width into the air reservoir barrel through the procedures of rolling and welding longitudinal seams, rolling and reducing the diameter of the ports at the two ends of the air reservoir barrel through a rolling device to form an end roller compression diameter section, wherein the diameter of the end roller compression diameter section is smaller than that of the air reservoir barrel;
preparing an air reservoir end cover, namely sequentially carrying out plate shearing blanking, stamping blanking and drawing forming on an aluminum alloy plate with a set width to obtain the air reservoir end cover, wherein the air reservoir end cover is provided with an air reservoir end cover straight section with the diameter being the same as that of the end rolling reducing section;
and (3) preparing an aluminum alloy air cylinder, wherein two ends of the cylinder body of the air cylinder are respectively butted with air cylinder end covers, and the end surface of the straight section of the air cylinder end cover is mutually attached to the end surface of the compression diameter section of the end roller and forms the aluminum alloy air cylinder through a circumferential welding seam.
In some embodiments: the preparation of the air cylinder body also comprises the following steps:
the cylinder body of the air cylinder is rolled and reduced in diameter according to the required size, and after the cylinder body is rolled and formed, the middle part of the roller compression diameter section of the cylinder body of the air cylinder is cut off by using a cutting device, so that the welding defect section at the end part of the cylinder body of the air cylinder is cut off and discarded, and the roller compression diameter section at the end part is formed.
In some embodiments: the preparation of the air cylinder body also comprises the following steps:
the middle part of the cylinder body of the air storage cylinder is rolled and reduced in diameter by a rolling device to form a middle roller compression diameter section, and the inner diameter of the middle roller compression diameter section is smaller than that of the end roller compression diameter section.
In some embodiments: the method further comprises the following steps:
the middle partition plate is arranged in the air cylinder body and divides the air cylinder body into a first cavity and a second cavity, the outer wall of the middle partition plate is mutually attached to the inner wall of the middle roller compression diameter section, and the middle partition plate is connected with the inner wall of the middle roller compression diameter section in a sealing and welding mode.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides an aluminum alloy air cylinder and a preparation method thereof, and the aluminum alloy air cylinder is provided with an air cylinder barrel, wherein the air cylinder barrel is formed by rolling and welding metal plates; the air cylinder end cover comprises an air cylinder end cover flat straight section connected with the end rolling reducing section, the diameter of the air cylinder end cover flat straight section is the same as that of the end roller compression diameter section, and the end face of the air cylinder end cover flat straight section is mutually attached to the end face of the end roller compression diameter section and is connected with the end face of the end roller compression diameter section through a circumferential ring welding seam.
Therefore, the cylinder body of the aluminum alloy air cylinder is formed by welding metal plates in a rolling mode, end roller compression diameter sections are formed at the ports of the two ends of the cylinder body of the air cylinder in a rolling and reducing mode, roundness deviation caused by welding the metal plates in the rolling mode of the aluminum alloy air cylinder is eliminated, roundness error of the roller compression diameter sections formed by rolling and reducing the ends of the cylinder body of the air cylinder is small, and size consistency is good. Therefore, the end ports at the two ends of the air cylinder body are in butt joint with the end faces of the air cylinder end covers, the butt joint precision and the welding quality of the air cylinder body and the air cylinder end covers are improved, and the sealing performance and the product quality of the aluminum alloy air cylinder are guaranteed. In addition, the ports at the two ends of the air cylinder body are in butt joint connection with the end faces of the air cylinder end covers, the air cylinder end covers are installed in the air cylinder body without the matching of end cover necking, the overlapping section of the air cylinder end cover and the air cylinder body in a sleeved mode is eliminated, and the light weight of a finished product is achieved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural diagram of another embodiment of the present application;
fig. 4 is a partially enlarged view of fig. 3.
Reference numerals:
1. an air cylinder end cover; 2. a circumferential girth weld; 3. a cylinder body of the air cylinder; 4. a middle partition plate; 5. a separator circumferential weld; 6. the middle roller compresses the diameter section; 7. the end roller compresses the diameter section; 8. the air receiver end cover straight section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides an aluminum alloy air cylinder and a preparation method thereof, and can solve the problems that in the related art, the roundness of a cylinder body is poor, an end cover is required to be sleeved and pressed into the cylinder body through a necking so as to guarantee the assembly quality, overlapping parts cannot bear the weight, and invalid weight causes material waste and weight increase.
Referring to fig. 1 and 2, a first aspect of an embodiment of the present application provides an aluminum alloy gas cylinder, including:
the gas receiver barrel 3, this gas receiver barrel 3 is formed by sheet metal edge rolling welding, and the port at gas receiver barrel 3 both ends forms tip roller compression footpath section 7 through the roll-in undergauge, and the diameter of tip roller compression footpath section 7 is less than the diameter of gas receiver barrel 3. The end roller compression diameter section 7 is used for eliminating roundness deviation of the air cylinder body 3 caused by metal plate rolling welding, and the rolling diameter reduction section 7 formed by rolling and reducing the end of the air cylinder body 3 is small in roundness error and good in size consistency.
The gas receiver end cover 1, this gas receiver end cover 1 include the gas receiver end cover straight section 8 of being connected with tip roller compression footpath section 7, and the diameter of this gas receiver end cover straight section 8 is the same with the diameter of tip roller compression footpath section 7, and the terminal surface of gas receiver end cover straight section 8 and the terminal surface of tip roller compression footpath section 7 are laminated each other and are connected through circumferential weld 2 sealing weld. The end face of the air cylinder end cover 1 utilizing the air cylinder end cover flat straight section 8 is directly attached to the end face of the end roller compression diameter section 7 and then is welded, the end port of the air cylinder end cover 1 is sleeved into the end roller compression diameter section 7 without a necking, so that the butt joint precision and the welding quality of the air cylinder barrel 3 and the air cylinder end cover 1 are improved, the air tightness and the product quality of the aluminum alloy air cylinder are guaranteed, and the light weight of a finished product is realized.
The air cylinder barrel 3 of the aluminum alloy air cylinder in the embodiment of the application is formed by welding metal plate in a rolling mode, end roller compression diameter sections 7 are formed at the ports at the two ends of the air cylinder barrel 3 in a rolling and reducing mode, roundness deviation of the air cylinder barrel 3 caused by welding the metal plate in the rolling and reducing mode is eliminated, roundness error of the rolling and reducing diameter sections 7 formed by rolling and reducing the end portions of the air cylinder barrel 3 is small, and size consistency is good.
Therefore, the end ports at the two ends of the air cylinder body 3 are in butt joint with the end face of the air cylinder end cover 1, the butt joint precision and the welding quality of the air cylinder body 3 and the air cylinder end cover 1 are improved, and the sealing performance and the product quality of the aluminum alloy air cylinder are guaranteed. In addition, the ports at the two ends of the air cylinder barrel body 3 are in butt joint with the end faces of the air cylinder end covers 1, the air cylinder end covers 1 are installed in the air cylinder barrel body 3 without end cover necking, the overlapping section of the air cylinder end covers 1 and the air cylinder barrel body 3 in a sleeved mode is eliminated, and light weight of finished products is achieved.
Referring to fig. 3 and 4, the embodiment of the present application provides an aluminum alloy gas cylinder, the middle part of the cylinder body 3 of the aluminum alloy gas cylinder is rolled and reduced in diameter to form a middle roller compression diameter section 6, and the inner diameter of the middle roller compression diameter section 6 is smaller than that of the end roller compression diameter section 7. The aluminum alloy gas cylinder also comprises an intermediate partition plate 4, and the intermediate partition plate 4 is positioned in the gas cylinder body 3 and divides the gas cylinder body 3 into a first cavity and a second cavity. The outer wall of the middle partition plate 4 is attached to the inner wall of the middle roller compression diameter section 6, and the middle partition plate 4 is connected with the inner wall of the middle roller compression diameter section 6 in a sealing and welding mode through a partition plate circumferential weld 5. The middle roller compression diameter section 6 not only can be used for connecting the middle partition plate 4, but also can enhance the structural strength of the air cylinder barrel 3.
When the intermediate baffle plate 4 is sleeved with the air storage cylinder barrel 3 with the intermediate roller compression diameter section 6, the outer surface of the intermediate baffle plate 4 only contacts with the inner surface of the intermediate roller compression diameter section 6 of the air storage cylinder barrel 3, the scratch on the inner part of the air storage cylinder barrel 3 in the assembly process of the intermediate baffle plate 4 is effectively reduced, the size consistency of the intermediate roller compression diameter section 6 is good, the assembly clearance between the intermediate baffle plate 4 and the air storage cylinder barrel 3 is easily ensured, and the poor air tightness of the welding seam of the intermediate baffle plate 4 and the repair welding of the intersection part of the welding seam of the intermediate baffle plate 4 and the longitudinal seam of the air storage cylinder barrel 3 are conveniently avoided.
Referring to fig. 3 and 4, the embodiment of the application provides an aluminum alloy gas cylinder, the intermediate baffle plate 4 of the aluminum alloy gas cylinder comprises a straight circular ring-shaped connecting section welded with the middle roller compression diameter section 6, and a partition plate located at one end of the straight circular ring-shaped connecting section and used for partitioning the gas cylinder body 3, the outer wall of the straight circular ring-shaped connecting section is attached to the inner wall of the middle roller compression diameter section 6, and the straight circular ring-shaped connecting section and the partition plate are of an aluminum alloy material integrated structure.
The intermediate baffle 4 of the embodiment of the application consists of a straight circular ring-shaped connecting section and a partition plate, wherein the outer surface of the straight circular ring-shaped connecting section is used for being mutually attached to the inner surface of the middle roller compression diameter section 6 and is in sealing welding connection with the inner surface of the middle roller compression diameter section through a baffle circumferential weld 5. The straight circular ring-shaped connecting section is rolled into a circular ring-shaped structure by adopting rolling equipment, the matching precision of the middle partition plate 4 and the middle roller compression diameter section 6 is guaranteed, the welding quality is guaranteed when the straight circular ring-shaped connecting section is welded and connected with the middle roller compression diameter section 6, and the sealing performance between the first cavity and the second cavity is guaranteed.
Referring to fig. 1 and 2, an embodiment of the present application provides an aluminum alloy gas cylinder, in which a cylinder body 3 and a cylinder end cover 1 of the aluminum alloy gas cylinder are both made of aluminum alloy plates with a set thickness, and the cylinder body 3 is made of an aluminum plate coil material with a specific width, and is made into a welded pipe through the processes of uncoiling, reshaping, rounding, welding a longitudinal seam, and the like. The air cylinder end cover 1 is formed by sequentially performing plate shearing blanking, stamping blanking and drawing forming on an aluminum alloy plate with a set size.
The difference between the diameter of the air cylinder barrel 3 and the diameter of the end roller compression diameter section 7 is not less than four times of the wall thickness of the air cylinder barrel 3. The axis of the end roller compression diameter section 7 is collinear with the axis of the air cylinder end cover 1 and the axis of the air cylinder barrel body 3 respectively, and the position accuracy of the end roller compression diameter section 7, the air cylinder barrel body 3 and the air cylinder end cover 1 is guaranteed.
The reduction amount of the outer diameter of the end roller compression diameter section 7 at the two ends of the air cylinder barrel 3 is not less than 2 times of the wall thickness of the air cylinder barrel 3, and the rolling length of the end roller compression diameter section 7 is subject to the requirement of assembly with the air cylinder end cover 1 that both sides meet after the middle of the end roller compression diameter section 7 is cut off. The reducing amount of the middle roller compression diameter section 6 in the middle of the air cylinder barrel 3 is not less than that of the end roller compression diameter section 7, and the length of the middle roller compression diameter section 6 meets the assembly requirement of the intermediate partition plate 4.
Referring to fig. 1 and 2, a second aspect of the embodiments of the present application provides a method for manufacturing an aluminum alloy gas cylinder, the method including the steps of:
step 1, preparing an air storage cylinder body 3, namely, manufacturing an air storage cylinder body 3 by uncoiling an aluminum plate coil stock with a set width, reshaping, rolling, welding a longitudinal seam and other processes, rolling and reducing the diameter of the end ports at the two ends of the air storage cylinder body 3 by a rolling device to form an end roller compression diameter section 7, wherein the diameter of the end roller compression diameter section 7 is smaller than that of the air storage cylinder body 3. Of course, the ports at the two ends of the air cylinder 3 are not limited to the end roller compression diameter section 7 formed by rolling with a rolling device, and those skilled in the art can also adopt a square shape with integral diameter expansion or bulging to realize the roundness precision control of the ports of the air cylinder 3.
And 3, preparing the aluminum alloy gas cylinder, wherein two ends of a cylinder body 3 of the gas cylinder are respectively butted with gas cylinder end covers 1, and the end surface of a straight section 8 of the gas cylinder end cover 1 is mutually attached to the end surface of a compression diameter section 7 of the end roller and is in sealing welding connection through a circumferential welding seam 2 to form the aluminum alloy gas cylinder.
The air cylinder barrel 3 of the preparation method of the aluminum alloy air cylinder in the embodiment of the application is formed by welding metal plate in a rolling mode, the end roller compression diameter sections 7 are formed at the ports at the two ends of the air cylinder barrel 3 through rolling and reducing the diameter, the roundness deviation of the air cylinder barrel 3 caused by welding the metal plate in the rolling and reducing mode is eliminated, the roundness error of the rolling and reducing diameter sections 7 formed by rolling and reducing the diameter of the end portions of the air cylinder barrel 3 is small, and the size consistency is good.
Therefore, the end ports at the two ends of the air cylinder body 3 are in butt joint with the end face of the air cylinder end cover 1, the butt joint precision and the welding quality of the air cylinder body 3 and the air cylinder end cover 1 are improved, and the sealing performance and the product quality of the aluminum alloy air cylinder are guaranteed. In addition, the ports at the two ends of the air cylinder barrel body 3 are in butt joint with the end faces of the air cylinder end covers 1, the air cylinder end covers 1 are installed in the air cylinder barrel body 3 without end cover necking, the overlapping section of the air cylinder end covers 1 and the air cylinder barrel body 3 in a sleeved mode is eliminated, and light weight of finished products is achieved.
In some alternative embodiments: referring to fig. 1 and 2, an embodiment of the present application provides a method for preparing an aluminum alloy gas cylinder, where in step 1 of the preparation method, the preparation of a cylinder body 3 of the gas cylinder further includes the following steps:
and cutting the middle position of the end roller compression diameter section 7 by using cutting equipment after the end roller compression diameter section 7 is formed by rolling, so that the end part of the end roller compression diameter section 7 is cut off and discarded. The end part of the cylinder body 3 of the air cylinder is staggered along the longitudinal seam direction, so that a positioning error exists when the end cover 1 of the air cylinder is welded, and the center of the circular seam of the end cover is longitudinally inclined; the end parts of the longitudinal seams are easy to have the welding defects such as incomplete penetration and burn-through, and the end parts of the welding defects such as incomplete penetration and burn-through of the end roller compression diameter section 7 are discarded in the step.
The step is not limited to cutting the middle position of the end roller compression diameter section 7 by using a cutting device after the end roller compression diameter section 7 is roll-formed, so that the end of the end roller compression diameter section 7 is cut and discarded. The end part of the air cylinder body 3 can be cut before the end part of the air cylinder body 3 is rolled to form the end part roller compression diameter section 7, and then the end part roller compression diameter section 7 is rolled at a proper position according to the required length of the air cylinder body 3 by the skilled person.
In some alternative embodiments: referring to fig. 3 and 4, an embodiment of the present application provides a method for preparing an aluminum alloy gas cylinder, where in step 1 of the preparation method, the preparation method further includes the following steps:
the middle part of the air cylinder barrel 3 is rolled and reduced in diameter by a rolling device to form a middle roller compression diameter section 6, and the inner diameter of the middle roller compression diameter section 6 is smaller than that of the end roller compression diameter section 7. The middle partition plate 4 which divides the air storage cylinder body 3 into a first chamber and a second chamber is arranged in the air storage cylinder body 3, the outer wall of the middle partition plate 4 is mutually attached to the inner wall of the middle roller compression diameter section 6, and the middle partition plate 4 is connected with the inner wall of the middle roller compression diameter section 6 in a sealing and welding mode through a partition plate circumferential weld 5.
In the step, the middle part of the air cylinder body 3 is rolled and reduced in diameter to form a middle roller compression diameter section 6, and the inner diameter of the middle roller compression diameter section 6 is smaller than that of an end roller compression diameter section 7. An intermediate baffle plate 4 is arranged in the aluminum alloy air cylinder, the intermediate baffle plate 4 is positioned in the air cylinder body 3 to divide the air cylinder body 3 into a first chamber and a second chamber, the outer wall of the intermediate baffle plate 4 is mutually attached to the inner wall of the middle roller compression diameter section 6, and the intermediate baffle plate is connected with the inner wall of the middle roller compression diameter section in a sealing and welding mode through a baffle plate circumferential weld 5.
When the intermediate baffle plate 4 is sleeved with the air storage cylinder barrel 3 with the intermediate roller compression diameter section 6, the outer surface of the intermediate baffle plate 4 only contacts with the inner surface of the intermediate roller compression diameter section 6 of the air storage cylinder barrel 3, the scratch on the inner part of the air storage cylinder barrel 3 in the assembly process of the intermediate baffle plate 4 is effectively reduced, the size consistency of the intermediate roller compression diameter section 6 is good, the assembly clearance between the intermediate baffle plate 4 and the air storage cylinder barrel 3 is easily ensured, and the poor air tightness of the welding seam of the intermediate baffle plate 4 and the repair welding of the intersection part of the welding seam of the intermediate baffle plate 4 and the longitudinal seam of the air storage cylinder barrel 3 are conveniently avoided.
Principle of operation
The embodiment of the application provides an aluminum alloy air cylinder and a preparation method, because the aluminum alloy air cylinder is provided with an air cylinder barrel 3, the air cylinder barrel 3 is formed by rolling and welding metal plates, end parts at two ends of the air cylinder barrel 3 are rolled and reduced in diameter to form an end part roller compression diameter section 7, and the diameter of the end part roller compression diameter section 7 is smaller than that of the air cylinder barrel 3; the gas receiver end cover 1, this gas receiver end cover 1 include the gas receiver end cover straight section 8 of being connected with tip roller compression footpath section 7, and the diameter of this gas receiver end cover straight section 8 is the same with the diameter of tip roller compression footpath section 7, and the terminal surface of gas receiver end cover straight section 8 and the terminal surface of tip roller compression footpath section 7 are laminated each other and are connected through circumferential girth welding seam 2.
Therefore, the air cylinder barrel 3 of the aluminum alloy air cylinder is formed by welding metal plates in a rolling and diameter reducing mode, the end roller compression diameter sections 7 are formed at the end openings of the two ends of the air cylinder barrel 3 in a rolling and diameter reducing mode, roundness deviation of the aluminum alloy air cylinder caused by welding the metal plates in the rolling and diameter reducing mode is eliminated, roundness errors of the rolling and diameter reducing sections 7 formed by rolling and diameter reducing of the end portions of the air cylinder barrel 3 are small, and size consistency is good. Therefore, the end ports at the two ends of the air cylinder body 3 are in butt joint with the end face of the air cylinder end cover 1, the butt joint precision and the welding quality of the air cylinder body 3 and the air cylinder end cover 1 are improved, and the sealing performance and the product quality of the aluminum alloy air cylinder are guaranteed. In addition, the ports at the two ends of the air cylinder barrel body 3 are in butt joint with the end faces of the air cylinder end covers 1, the air cylinder end covers 1 are installed in the air cylinder barrel body 3 without end cover necking, the overlapping section of the air cylinder end covers 1 and the air cylinder barrel body 3 in a sleeved mode is eliminated, and light weight of finished products is achieved.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. 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 meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An aluminum alloy gas cylinder, comprising:
the air cylinder body (3) is formed by welding metal plates in a rolling mode, the ports at the two ends of the air cylinder body (3) are rolled and reduced in diameter to form an end roller compression diameter section (7), and the diameter of the end roller compression diameter section (7) is smaller than that of the air cylinder body (3);
gas receiver end cover (1), gas receiver end cover (1) includes the gas receiver end cover straight section (8) of being connected with tip roller compression footpath section (7), the diameter of the straight section of gas receiver end cover (8) is the same with the diameter of tip roller compression footpath section (7), the terminal surface of the straight section of gas receiver end cover (8) and the terminal surface of tip roller compression footpath section (7) are laminated each other and are connected through circumferential weld (2).
2. The aluminum alloy gas cylinder as set forth in claim 1, wherein:
the middle part of the air cylinder barrel body (3) is rolled and reduced in diameter to form a middle roller compression diameter section (6), and the inner diameter of the middle roller compression diameter section (6) is smaller than that of the end roller compression diameter section (7).
3. The aluminum alloy gas cylinder as set forth in claim 2, wherein:
still include intermediate bottom (4), intermediate bottom (4) are located gas receiver barrel (3) and separate into first cavity and second cavity with gas receiver barrel (3), the outer wall of intermediate bottom (4) is laminated each other with the inner wall of middle part roller compression footpath section (6), the inner wall welded connection of intermediate bottom (4) and middle part roller compression footpath section (6) and guarantee the welding seam gas tightness.
4. The aluminum alloy gas cylinder as set forth in claim 3, wherein:
intermediate bottom (4) include with middle part roller compression footpath section (6) welded connection's straight ring shape linkage segment to and be located the one end smooth transition's of straight ring shape linkage segment the division board that is used for separating gas receiver barrel (3), the outer wall of straight ring shape linkage segment laminates with the inner wall of middle part roller compression footpath section (6) each other, straight ring shape linkage segment is aluminum alloy material integrated into one piece structure with the division board.
5. The aluminum alloy gas cylinder as set forth in claim 1, wherein:
the difference between the diameter of the air cylinder body (3) and the diameter of the end roller compression diameter section (7) is not less than four times of the wall thickness of the air cylinder body (3).
6. The aluminum alloy gas cylinder as set forth in claim 1, wherein:
the air cylinder body (3) and the air cylinder end cover (1) are both made of aluminum alloy materials.
7. The preparation method of the aluminum alloy gas cylinder is characterized by comprising the following steps of:
preparing an air reservoir cylinder body (3), namely preparing the air reservoir cylinder body (3) from an aluminum alloy plate with a set width through the processes of rolling and welding longitudinal seams, rolling and reducing the diameter of the ports at the two ends of the air reservoir cylinder body (3) through a rolling device to form an end roller compression diameter section (7), wherein the diameter of the end roller compression diameter section (7) is smaller than that of the air reservoir cylinder body (3);
preparing an air cylinder end cover (1), namely sequentially carrying out plate shearing blanking, stamping blanking and drawing forming on an aluminum alloy plate with a set width to obtain the air cylinder end cover (1), wherein the air cylinder end cover (1) is provided with an air cylinder end cover straight section (8) with the diameter being the same as that of an end roller compression diameter section (7);
the aluminum alloy air cylinder is prepared by respectively butting air cylinder end covers (1) at two ends of an air cylinder barrel body (3), and mutually attaching the end face of a straight section (8) of the air cylinder end cover and the end face of an end roller compression diameter section (7) and forming the aluminum alloy air cylinder through a circumferential welding seam (2).
8. The method for preparing an aluminum alloy gas cylinder as claimed in claim 7, wherein the preparation of the cylinder body (3) of the gas cylinder further comprises the following steps:
the air cylinder barrel (3) is rolled and reduced in diameter according to the required size, and after rolling forming, the middle part of the roller compression diameter section of the air cylinder barrel (3) is cut off by using a cutting device, so that the welding defect section at the end part of the air cylinder barrel (3) is cut off and discarded, and an end part roller compression diameter section (7) is formed.
9. The method for preparing an aluminum alloy gas cylinder as claimed in claim 7, wherein the preparation of the cylinder body (3) of the gas cylinder further comprises the following steps:
the middle part of the air cylinder body (3) is rolled and reduced in diameter by a rolling device to form a middle roller compression diameter section (6), and the inner diameter of the middle roller compression diameter section (6) is smaller than that of the end roller compression diameter section (7).
10. The method of producing an aluminum alloy gas cylinder as set forth in claim 9, further comprising:
the gas receiver is characterized in that an intermediate partition plate (4) which divides the gas receiver barrel into a first chamber and a second chamber is arranged in the gas receiver barrel (3), the outer wall of the intermediate partition plate (4) is mutually attached to the inner wall of the middle roller compression diameter section (6), and the intermediate partition plate (4) is connected with the inner wall of the middle roller compression diameter section (6) in a sealing and welding mode.
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| CN113830063B (en) | 2022-10-14 |
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