Air spring support ring assembly equipment

Abstract

This invention provides an air spring support ring assembly device. The bottom opening of the airbag is sealed by a first sealing module, and the top opening is sealed by a guide plug in a second sealing module. This creates a sealed space inside the airbag. Only inflation is needed to expand the airbag radially to a preset tension state. The motor-driven spindle mechanism rotates the guide plug, reducing friction between the guide plug and / or the support ring and the airbag. This allows the first linear actuator to smoothly drive the guide plug to move vertically within the airbag, enabling convenient and efficient placement of the support ring into the preset position inside the airbag. This reduces the difficulty of installing the air spring support ring, improves its installation accuracy, and increases the assembly efficiency of the support ring and airbag.

Description

Technical Field

[0001] This invention belongs to the technical field of air spring assembly equipment for passenger vehicles, and in particular, relates to an air spring support ring assembly device. Background Technology

[0002] An air spring is a spring that uses compressed air within a sealed container to achieve its elastic effect, utilizing the compressibility of the gas. Currently, air springs are increasingly used in automotive suspensions. In air spring designs, to fix the relative position of the outer casing and the air chamber, it's becoming increasingly common to insert a large-diameter steel ring into a small-diameter air chamber as an inner support ring to press against the outer casing. However, when the outer diameter of the support ring differs significantly from the inner diameter of the air chamber in its free state (e.g., the outer diameter of the support ring is 5-30mm larger than the inner diameter of the air chamber in its free state), assembling the support ring becomes very difficult, resulting in low installation accuracy and low assembly efficiency. Summary of the Invention

[0003] Based on the aforementioned problems in the prior art, the purpose of this invention is to provide an air spring support ring assembly device to solve the technical problems of high assembly difficulty, low installation position accuracy, and low assembly efficiency of air spring support rings in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an air spring support ring assembly device, comprising:

[0005] Workbench;

[0006] A first sealing module is disposed on the workbench. The first sealing module includes a positioning sleeve fitted around the bottom of the airbag to position the airbag on the workbench and a sealing component for sealing the bottom opening of the airbag.

[0007] A second sealing module, movably mounted on the worktable along the axial direction of the positioning sleeve, includes a spindle mechanism, a guide plug mounted on the spindle mechanism, and a motor driving the spindle mechanism to rotate; and

[0008] A first linear actuator is used to drive the second sealing module to move up and down. The first linear actuator is fixedly mounted on the worktable.

[0009] The guide plug is provided with a locking position for positioning the support ring, and the first sealing module is provided with an air supply channel for inflating the airbag. When the first linear actuator drives the second sealing module to move until the guide plug contacts the top opening of the airbag, the first linear actuator drives the second sealing module to continue to move downward. The motor drives the main shaft mechanism to rotate the guide plug, and at the same time, an external inflation air source inflates the airbag through the air supply channel, so that the airbag expands radially to a preset tension state until the support ring on the guide plug is assembled into a preset position inside the airbag. Then, the first linear actuator drives the second sealing module to move until the guide plug disengages from the airbag.

[0010] Furthermore, the diameter of the guide plug is larger than the inner diameter of the airbag, the outer diameter of the support ring is larger than the inner diameter of the airbag, and the outer diameter of the support ring is smaller than the diameter of the guide plug.

[0011] Furthermore, the guide plug includes a plug for supporting the inner wall of the airbag to close the top of the airbag and a tapered guide portion for guiding the plug into the top opening of the airbag, wherein the connection between the tapered guide portion and the plug forms the locking position.

[0012] Furthermore, the guide plug is provided with a magnetic suction element at the position corresponding to the locking position, and the magnetic suction element is used to magnetically attract the support ring.

[0013] Furthermore, the sealing assembly includes a support base for supporting the bottom end of the positioning sleeve and an expansion mold structure disposed on the support base. The inner wall of the positioning sleeve is provided with a support step for abutting the bottom end of the airbag, and the expansion mold structure is used to close the bottom opening of the airbag.

[0014] Furthermore, the first sealing module also includes a tightening ring for fitting onto the airbag, the tightening ring being disposed adjacent to the mounting position on the airbag and positioned above the mounting position.

[0015] Furthermore, the air spring support ring assembly equipment also includes a clamping mechanism for clamping and positioning the support ring at the mounting position of the airbag.

[0016] Furthermore, the clamping mechanism includes a pair of clamping blocks arranged in pairs, a second linear drive device for driving the clamping blocks to move, and a bracket for supporting the second linear drive device. The bracket is disposed on the worktable, and each clamping block is connected to the corresponding second linear drive device.

[0017] Furthermore, the clamping mechanism also includes a first linear slide rail mechanism for sliding the clamping block on the corresponding bracket. The first linear slide rail mechanism includes a first slide rail disposed on the bracket and a first slider slidably mounted on the first slide rail. The clamping block is connected to the corresponding first slider.

[0018] Furthermore, the air spring support ring assembly equipment also includes a guide mechanism for guiding the second sealing module to move up and down. The guide mechanism includes at least two vertically arranged guide columns, a sliding seat slidably mounted on the guide columns via a linear bearing, and a fixed seat fixedly mounted on the sliding seat. The main shaft mechanism is rotatably mounted on the fixed seat, the motor is mounted on the fixed seat, and the sliding seat is connected to the first linear driver.

[0019] Compared with the prior art, one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0020] The air spring support ring assembly equipment in this embodiment of the invention seals the bottom opening of the airbag through the sealing component of the first sealing module and the top opening of the airbag through the guide plug of the second sealing module. After the airbag is enclosed to form a sealed space, it is only necessary to inflate the airbag to expand radially to a preset tension state. In addition, the motor drives the main shaft mechanism to rotate the guide plug, which reduces the friction between the guide plug and / or the support ring and the airbag. This allows the first linear actuator to smoothly drive the guide plug to move up and down inside the airbag. The guide plug can conveniently and efficiently place the support ring into the preset position inside the airbag, thereby reducing the installation difficulty of the air spring support ring, improving the installation accuracy of the support ring, and improving the assembly efficiency of the support ring and the airbag. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A three-dimensional structural schematic diagram of the air spring support ring assembly equipment provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the main structure of the air spring support ring assembly equipment provided in an embodiment of the present invention;

[0024] Figure 3This is a cross-sectional view of the air spring support ring assembly equipment provided in an embodiment of the present invention;

[0025] Figure 4 for Figure 3 A partially enlarged structural diagram;

[0026] Figure 5 This is a three-dimensional structural schematic diagram of an air spring support ring assembly device provided in another embodiment of the present invention;

[0027] Figure 6 A three-dimensional structural schematic diagram of the clamping mechanism provided in an embodiment of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the second sealing module provided in an embodiment of the present invention;

[0029] Figure 8 This is a cross-sectional view of the first sealing module provided in an embodiment of the present invention;

[0030] Figure 9 This is a three-dimensional structural diagram of the bulging mold structure provided in an embodiment of the present invention;

[0031] Figure 10 An exploded view of the first sealing module provided in an embodiment of the present invention.

[0032] The following are the labeling elements in the figure:

[0033] 1-Workbench;

[0034] 2-First sealing module; 21-Positioning sleeve; 22-Sealing assembly; 221-Support base; 2211-Sliding hole; 222-Expansion mold structure; 2221-Expansion flap; 2222-Conical hole; 2223-Base; 2224-Sealing protrusion; 2225-Elastic connector; 2226-Through hole; 2227-Sealing groove; 223-Actuator; 23-Tightening ring;

[0035] 3-Second sealing module; 31-Main spindle mechanism; 32-Guide plug; 321-Plug; 322-Conical guide; 323-Clamping position; 33-Motor;

[0036] 4-First linear actuator; 5-Airbag; 6-Sealed space;

[0037] 7-Guiding mechanism; 71-Guiding column; 72-Sliding seat; 73-Fixed seat; 74-Sliding sleeve;

[0038] 8-Clamping mechanism; 81-Clamping block; 82-Second linear actuator; 83-Bracket; 84-First linear slide rail mechanism; 841-First slide rail; 842-First slider; 85-Slide table; 86-Second linear slide rail mechanism; 861-Second slide rail; 862-Second slider;

[0039] 9-Drive assembly; 91-Fixed frame; 92-Linear drive mechanism; 93-Sliding shaft; 931-Gas delivery channel;

[0040] 10-Support ring; 20-Positioning space; 30-Mounting position. Detailed Implementation

[0041] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0042] It should be noted that when an element is referred to as "connected to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0044] Please refer to the following: Figures 1 to 10 The air spring support ring assembly equipment provided in this embodiment of the invention will now be described. The air spring support ring assembly equipment provided in this embodiment of the invention can quickly and accurately assemble the airbag 5 and support ring 10 of the air spring of a passenger car, reduce the difficulty of assembling the air spring support ring, and effectively improve the assembly efficiency of the airbag 5 and support ring 10.

[0045] Please refer to further reading. Figure 1 , Figure 2 and Figure 3 The air spring support ring assembly equipment provided in this embodiment of the invention includes a worktable 1, a first sealing module 2, a second sealing module 3, and a first linear actuator 4. The first sealing module 2 is disposed on the worktable 1 and includes a positioning sleeve 21 and a sealing component 22. The sealing component 22 is used to seal the bottom opening of the airbag 5, and the positioning sleeve 21 is used to fit around the bottom of the airbag 5, positioning the airbag 5 on the worktable 1 and preventing radial displacement of the airbag 5. The second sealing module 3 is disposed on the worktable 1 and is movably disposed along the axial direction of the positioning sleeve 21. The first linear actuator 4 is fixedly installed on the worktable 1 and is used to drive the second sealing module 3 to move up and down. The second sealing module 3 includes a spindle mechanism 31, a guide plug 32 disposed on the spindle mechanism 31, and a motor 33 for driving the spindle mechanism 31 to rotate. Furthermore, the guide plug 32 is provided with a locking position 323 for positioning the support ring 10, and the first sealing module 2 is provided with an air supply channel 931 for inflating the airbag 5, and the air supply channel 931 is connected to the airbag 5.

[0046] When assembling the airbag 5 and the support ring 10, simply place the bottom end of the airbag 5 inside the positioning sleeve 21 of the first sealing module 2, and seal the bottom opening of the airbag 5 with the sealing component 22. Then, the first linear actuator 4 drives the second sealing module 3 to move toward the top opening of the airbag 5 until the guide plug 32 of the second sealing module 3 contacts the top opening of the airbag 5. While the first linear actuator 4 drives the second sealing module 3 to continue moving downward, the motor 33 drives the main shaft mechanism 31 to rotate the guide plug 32, and inflates the airbag 5 through the air supply channel 931 via an external inflation air source. Since the top opening of the airbag 5 is sealed by the guide plug 32 and the bottom opening of the airbag 5 is sealed by the sealing component 22, a sealed space 6 is formed inside the airbag 5. By continuously inflating the airbag 5 through the air supply channel 931, the airbag 5 can expand radially to the preset tension state. At this point, driven by the first linear actuator 4, the rotating guide plug 32 moves the support ring 10 downwards to a preset position inside the airbag 5. Once the support ring 10 on the guide plug 32 is assembled to the preset position inside the airbag 5, the rotating guide plug 32 disengages from the support ring 10 under the drive of the first linear actuator 4. The first linear actuator 4 then continues to drive the second sealing module 3 upwards until the guide plug 32 disengages from the airbag 5, thus quickly completing the assembly of the airbag 5 and the support ring 10. During this process, because the airbag 5 expands radially to a preset tensioned state, and the guide plug 32 rotates inside the airbag 5, the first linear actuator 4 can easily drive the guide plug 32 to move vertically within the airbag 5. This reduces the installation difficulty of the air spring support ring, improves the installation accuracy of the support ring 10, and enhances the assembly efficiency of the support ring 10 and the airbag 5.

[0047] Compared with the prior art, the air spring support ring assembly equipment provided in this embodiment of the invention seals the bottom opening of the airbag 5 through the sealing component 22 of the first sealing module 2 and the top opening of the airbag 5 through the guide plug 32 of the second sealing module 3. After the airbag 5 is enclosed to form a sealed space, it is only necessary to inflate the airbag 5 to make it expand radially to a preset tension state. In addition, the motor 33 drives the main shaft mechanism 31 to rotate the guide plug 32, which reduces the friction between the guide plug 32 and / or the support ring 10 and the airbag 5. This allows the first linear actuator 4 to smoothly drive the guide plug 32 to move up and down inside the airbag 5. The guide plug 32 can conveniently and efficiently place the support ring 10 into the preset position inside the airbag 5, thereby reducing the installation difficulty of the air spring support ring, improving the installation accuracy of the support ring 10, and improving the assembly efficiency of the support ring 10 and the airbag 5.

[0048] Please refer to the following: Figure 1 , Figure 2 and Figure 8 In some embodiments, the diameter of the guide plug 32 is larger than the inner diameter of the airbag 5, the outer diameter of the support ring 10 is larger than the inner diameter of the airbag 5, and the outer diameter of the support ring 10 is smaller than the diameter of the guide plug 32. In this embodiment, when the airbag 5 expands radially to a preset tension state, the guide plug 32 can smoothly receive the inside of the airbag 5, avoiding contact between the rigid support ring 10 and the inner wall of the airbag 5, which could damage the airbag 5.

[0049] Please refer to the following: Figure 1 , Figure 6 and Figure 7 In some embodiments, the guide plug 32 includes a plug 321 for supporting the inner wall of the airbag 5 to close the top of the airbag 5, and a tapered guide portion 322 for guiding the plug 321 into the top opening of the airbag 5. A locking position 323 is formed at the connection between the tapered guide portion 322 and the plug 321. In this embodiment, the tapered guide portion 322 allows the plug 321 to be quickly inserted into the top opening of the airbag 5 to close it. The locking position 323, located at the connection between the tapered guide portion 322 and the plug 321, and acting as a locking mechanism for the support ring 10, enhances the stability of the support ring 10 on the guide plug 32, preventing displacement or detachment of the support ring 10.

[0050] Please refer to the following: Figure 4 , Figure 5 and Figure 9 In some embodiments, the sealing component 22 includes a support base 221 for supporting the bottom end of the positioning sleeve 21 and an expansion mold structure 222 disposed on the support base 221. The expansion mold structure 222 is used to close the bottom opening of the airbag 5. In this embodiment, by supporting the positioning sleeve 21 on the support base 221 and providing an expansion mold structure 222 on the support base 221 and inside the airbag 5, the bottom opening of the airbag 5 can be closed simply by forcing the expansion mold structure 222 to expand radially under the action of external force. After the expansion mold structure 222 expands radially, it can hold the airbag 5 against the inner wall of the positioning sleeve 21, thereby enhancing the stability of the bottom positioning of the airbag 5.

[0051] Please refer to the following: Figure 4 and Figure 10 In some embodiments, the inner wall of the positioning sleeve 21 is provided with a supporting step for abutting the bottom end of the airbag 5, which can prevent the airbag 5 from axial displacement and enhance the stability of the bottom positioning of the airbag 5. In addition, the step surface of the supporting step is flush with the top surface of the support base 221, so that the bottom end face of the airbag 5 is flush with the top surface of the support base 221. This facilitates the radially expanding expansion mold structure 222 to support the bottom opening of the airbag 5, so that the radially expanding expansion mold structure 222 provides a good sealing effect at the bottom opening of the airbag 5.

[0052] Please refer to the following: Figure 3 , Figure 4 and Figure 10 In some embodiments, the first sealing module 2 further includes a tightening ring 23 for fitting onto the airbag 5. The tightening ring 23 is positioned adjacent to the mounting position 30 on the airbag 5 and is located above the mounting position 30. In this embodiment, by fitting the tightening ring 23 onto the airbag 5 near the mounting position 30, deformation of the airbag 5 during the downward pressing of the guide plug 32 can be avoided, which would cause displacement of the mounting position 30. This helps ensure that the guide plug 32 efficiently and accurately delivers the support ring 10 to the mounting position 30 on the airbag 5, thereby improving the installation accuracy and assembly efficiency of the support ring 10.

[0053] Please refer to the following: Figure 3 , Figure 5 and Figure 6 In some embodiments, the air spring support ring assembly equipment further includes a clamping mechanism 8 for clamping and positioning the support ring 10 at the mounting position 30 of the airbag 5. After the guide plug 32 delivers the support ring 10 to the mounting position 30 on the airbag 5, the clamping mechanism 8 can clamp and position the support ring 10, preventing the guide plug 32 from causing displacement of the support ring 10 during its upward movement out of the airbag 5. This improves the installation accuracy and assembly efficiency of the support ring 10. Furthermore, by clamping and positioning the support ring 10 with the clamping mechanism 8, after the guide plug 32 delivers the support ring 10 to the mounting position 30 on the airbag 5, the guide plug 32 and the support ring 10 can be quickly separated, preventing the support ring 10 from moving or rotating freely with the guide plug 32 and damaging the airbag 5.

[0054] Please refer to the following: Figure 1 , Figure 2 and Figure 3 In some embodiments, the clamping mechanism 8 includes a pair of clamping blocks 81, a second linear actuator 82 for driving the clamping blocks 81 to move, and a bracket 83 supporting the second linear actuator 82. The bracket 83 is disposed on the worktable 1, and each second linear actuator 82 is respectively mounted on the corresponding bracket 83. Each clamping block 81 is connected to the output end of the corresponding second linear actuator 82. In this embodiment, each second linear actuator 82 drives the corresponding clamping block 81. The two clamping blocks 81 move closer to each other to achieve the clamping and positioning function of the support ring 10, avoiding displacement of the support ring 10 caused by the guide plug 32 moving upward out of the airbag 5, which is beneficial to improving the installation accuracy and assembly efficiency of the support ring 10.

[0055] Please refer to the following: Figure 1 , Figure 3 and Figure 6In some embodiments, the clamping mechanism 8 further includes a first linear slide rail mechanism 84 for radially sliding the clamping block 81 on the corresponding bracket 83 along the positioning sleeve 21. The first linear slide rail mechanism 84 includes a first slide rail 841 disposed on the bracket 83 and a first slider 842 slidably mounted on the first slide rail 841. The clamping block 81 is connected to the corresponding first slider 842. In this embodiment, the clamping block 81 is slidably disposed on the corresponding bracket 83 via the first linear slide rail mechanism 84, which can enhance the smoothness and accuracy of the movement of the clamping block 81.

[0056] Please refer to the following: Figure 6 In some embodiments, the clamping mechanism 8 further includes a slide table 85 slidably mounted on a corresponding bracket 83 along the axial direction of the positioning sleeve 21. Each second linear actuator 82 is fixedly mounted on the corresponding slide table 85, and each first slide rail 841 is fixedly mounted on the corresponding slide table 85. Specifically, each slide table 85 is slidably mounted on the corresponding bracket 83 via a corresponding second linear slide rail mechanism 86. The height of the clamping block 81 can be adjusted by moving the position of the slide table 85, allowing the clamping mechanism 8 to adapt to the clamping and positioning of the support ring 10 at different heights, thus providing strong versatility. The second linear slide rail mechanism 86 includes a second slide rail 861 mounted on the bracket 83 and a second slider 862 slidably mounted on the second slide rail 861. The slide table 85 is connected to the corresponding second slider 862. In addition, the clamping mechanism 8 also includes a locking structure for locking the position of the second slider 862. The locking structure may include a pin inserted into the second slider 862 and a hole provided on the second slide rail 861. When the pin is inserted into the corresponding hole, the second slider 862 can be locked at the corresponding height position, thereby locking the position height of the clamping block 81.

[0057] Please refer to the following: Figure 3 , Figure 5 and Figure 8In some embodiments, the air spring support ring assembly device provided by the present invention further includes a drive assembly 9. The first sealing module 2 includes a support base 221, a positioning sleeve 21, and a sealing assembly 22. The positioning sleeve 21 is disposed on the support base 221, and the bottom end face of the positioning sleeve 21 is flush with the upper surface of the support base 221. The sealing assembly 22 is disposed on the upper surface of the support base 221. After the bottom end of the airbag 5 is inserted into the positioning sleeve 21, the sealing assembly 22 is located in the airbag 5. The sealing assembly 22 can squeeze the airbag 5 toward the positioning sleeve 21, so that the sealing assembly 22 can seal the bottom opening of the airbag 5. Specifically, the sealing assembly 22 includes an expansion mold structure 222 disposed in the positioning sleeve 21 and capable of expanding or contracting radially, and an actuator 223 for forcing the expansion mold structure 222 to expand or contract radially. A positioning space 20 for positioning the bottom end of the airbag 5 is formed between the outer peripheral surface of the expansion mold structure 222 and the inner wall of the positioning sleeve 21, and the bottom end of the airbag 5 is placed in the positioning space 20. The driving assembly 9 includes a fixing frame 91 connected to the support base 221 and a linear drive mechanism 92 mounted on the fixing frame 91. The actuator 223 is connected to the output end of the linear drive mechanism 92, so that the driving assembly 9 can drive the actuator 223 to press against the expansion mold structure 222. When the linear drive mechanism 92 pulls the actuator 223 toward the expansion mold structure 222, the actuator 223 presses against the expansion mold structure 222 to make the expansion mold structure 222 expand radially. The outer peripheral surface of the expansion mold structure 222 fits against the inner wall of the airbag 5 to seal the bottom opening of the airbag 5. At the same time, the radially expanding expansion mold structure 222 squeezes the airbag 5 and holds it against the inner wall of the positioning sleeve 21, so that the radially expanding expansion mold structure 222 and the positioning sleeve 21 clamp the bottom of the positioning airbag 5. With the above structural setup, only the bottom end of the airbag 5 needs to be placed into the positioning sleeve 21, and the bottom end of the airbag 5 should be placed in the positioning space 20 formed between the outer peripheral surface of the expansion mold structure 222 and the inner wall of the positioning sleeve 21. The linear drive mechanism 92 pulls the actuator 223 towards the expansion mold structure 222, causing the actuator 223 to press against the expansion mold structure 222, causing the expansion mold structure 222 to expand radially. The radially expanded expansion mold structure 222 tightly fits against the inner wall of the airbag 5, sealing the bottom opening of the airbag 5. Simultaneously, the radially expanded expansion mold structure 222 squeezes and holds the airbag 5 against the inner wall of the positioning sleeve 21, thus clamping and positioning the bottom end of the airbag 5. In this way, the bottom opening of the airbag 5 can be conveniently and efficiently positioned and sealed, shortening the assembly time of the airbag 5 and improving the automated assembly efficiency of the support positioning ring and the airbag 5.

[0058] Please refer to the following: Figure 9In some embodiments, the expansion mold structure 222 is formed by a plurality of expansion petals 2221, and the expansion mold structure 222 has a tapered hole 2222 along its axial direction, into which the actuator 223 can be inserted or removed. In this embodiment, the expansion mold structure 222 is formed by a plurality of expansion petals 2221. When the actuator 223 presses against the expansion mold structure 222, the expansion mold structure 222 can expand rapidly and stably along its radial direction, enhancing the tightness of the fit between the expansion mold structure 222 and the inner wall of the airbag 5, and improving the firmness of the expansion mold structure 222 in squeezing and holding the airbag 5 against the inner wall of the positioning sleeve 21. The expansion mold structure 222 has a tapered hole 2222 along its axial direction, into which the inverted cone-shaped actuator 223 can be inserted or removed. When the inverted conical actuator 223 is inserted into the conical hole 2222, the actuator 223 presses against the expansion mold structure 222, causing the expansion mold structure 222 to expand radially, thereby achieving convenient and efficient positioning and sealing of the bottom end of the airbag 5. When the inverted conical actuator 223 is removed from the conical hole 2222, the expansion mold structure 222, which was pressed by external force, returns to its original shape, releasing the positioning and sealing of the bottom end of the airbag 5, and facilitating the disassembly and assembly of the airbag 5 and the positioning sleeve 21.

[0059] Please refer to the following: Figure 4 In some embodiments, the expansion mold structure 222 includes a base 2223 supported on a support base 221, a sealing protrusion 2224 for radial expansion to fit the inner wall of the airbag 5, and an elastic connector 2225 connecting the sealing protrusion 2224 to the base 2223. The base 2223 has a through hole 2226 through which the output shaft of the linear drive mechanism 92 passes. The expansion mold structure 222 has a tapered hole 2222 along its axial direction. The actuator 223 can be inserted into or removed from the tapered hole 2222. The through hole 2226 communicates with the tapered hole 2222. In this embodiment, the sealing protrusion 2224 is connected to the base 2223 through the elastic connector 2225. The output shaft of the linear drive mechanism 92 passes through the through hole 2226 on the base 2223, which can drive the actuator 223 to be inserted into or removed from the tapered hole 2222, thereby enabling the expansion mold structure 222 to quickly expand radially or return to its original shape, which facilitates the disassembly and assembly of the airbag 5 and the positioning sleeve 21.

[0060] Please refer to the following: Figure 9 In some embodiments, a sealing groove 2227 is provided on the outer peripheral surface of the expansion mold structure 222, and a sealing ring is installed in the sealing groove 2227 to further enhance the sealing performance of the expansion mold structure 222 to the bottom opening of the airbag 5.

[0061] Please refer to the following: Figure 10In some embodiments, the inner wall of the positioning sleeve 21 is provided with a supporting step for abutting the bottom end of the airbag 5, which can prevent the airbag 5 from axial displacement and enhance the stability of the bottom positioning of the airbag 5. In addition, the step surface of the supporting step is flush with the top surface of the support base 221, so that the bottom end face of the airbag 5 is flush with the top surface of the support base 221. This facilitates the radially expanding expansion mold structure 222 to support the bottom opening of the airbag 5, so that the radially expanding expansion mold structure 222 provides a good sealing effect at the bottom opening of the airbag 5.

[0062] Please refer to the following: Figure 3 , Figure 8 and Figure 10 In some embodiments, the linear drive mechanism 92 is a cylinder, and the drive assembly 9 further includes a sliding shaft 93 connecting the piston rod of the cylinder and the actuator 223. The support base 221 is provided with a sliding hole 2211 to guide the axial movement of the sliding shaft 93. In this embodiment, the sliding fit between the sliding shaft 93 and the sliding hole 2211 helps to enhance the stability and reliability of the cylinder driving the actuator 223 to press against the expansion mold structure 222.

[0063] Please refer to the following: Figure 8 In some embodiments, the sliding shaft 93 is provided with an air supply channel 931 that connects an external inflation air source to the airbag 5, which can conveniently inflate the airbag 5 and force the airbag 5 to expand radially.

[0064] Please refer to the following: Figure 8 and Figure 10 In some embodiments, the actuator 223 is an inverted conical pressing block that matches the conical hole 2222 on the expansion mold structure 222. When the inverted conical actuator 223 is inserted into the conical hole 2222, the actuator 223 presses against the expansion mold structure 222, causing the expansion mold structure 222 to expand radially, thereby achieving convenient and efficient positioning and sealing of the bottom end of the airbag 5. When the inverted conical actuator 223 is removed from the conical hole 2222, the expansion mold structure 222, which was pressed by external force, returns to its original shape, releasing the positioning and sealing of the bottom end of the airbag 5, facilitating the disassembly and assembly of the airbag 5 and the positioning sleeve 21.

[0065] Please refer to the following: Figure 3 , Figure 4 and Figure 10In some embodiments, the first sealing module 2 further includes a tightening ring 23 for fitting onto the airbag 5. The tightening ring 23 is positioned adjacent to the mounting position 30 on the airbag 5 and is located above the mounting position 30. In this embodiment, by fitting the tightening ring 23 onto the airbag 5 near the mounting position 30, deformation of the airbag 5 during the downward pressing of the guide plug 32 can be avoided, which would cause displacement of the mounting position 30. This helps ensure that the guide plug 32 efficiently and accurately delivers the support ring 10 to the mounting position 30 on the airbag 5, thereby improving the installation accuracy and assembly efficiency of the support ring 10.

[0066] Please refer to the following: Figure 7 In some embodiments, the connection between the tapered guide portion 322 and the plug 321 is further formed with a stepped surface for supporting the support ring 10. By supporting the top end face of the support ring 10 with the stepped surface, axial displacement between the support ring 10 and the guide plug 32 is avoided during the process of pressing the support ring 10 into the airbag 5 by the guide plug 32. This helps to reduce the difficulty of the guide plug 32 assembling the support ring 10 into the airbag 5 and improve the accuracy of the support ring 10 installation position 30.

[0067] Please refer to the following: Figure 1 , Figure 2 and Figure 3 In some embodiments, the press-fitting fixture for assembling the support ring 10 also includes a guide mechanism 7 that guides the spindle mechanism 31 to move up and down. The guide mechanism 7 guides the spindle mechanism 31 to drive the guide plug 32 to move, ensuring that the guide plug 32 has good concentricity with the airbag 5 during the press-fitting of the support ring 10, which helps to reduce the difficulty of the guide plug 32 assembling the support ring 10 into the airbag 5.

[0068] Please refer to the following: Figure 1 , Figure 2 and Figure 3 In some embodiments, the guide mechanism 7 includes at least two vertically arranged guide posts 71, a sliding seat 72 slidably mounted on the guide posts 71, and a fixed seat 73 fixedly mounted on the sliding seat 72. The main shaft mechanism 31 is rotatably mounted on the fixed seat 73, and the motor 33 is mounted on the fixed seat 73. The sliding seat 72 is fixedly connected to the output end of the first linear actuator 4. In this embodiment, at least two guide posts 71 are arranged parallel and spaced apart on the fixed plate. The first linear actuator 4 is fixedly mounted on the fixed plate. During the process of the first linear actuator 4 driving the sliding seat 72 to move up and down, the motor 33 can simultaneously drive the main shaft mechanism 31 to rotate, thereby driving the guide plug 32 to move up and down and rotate through the main shaft mechanism 31.

[0069] Please refer to the following: Figure 1 , Figure 2 and Figure 3In some embodiments, the guide mechanism 7 further includes a sliding sleeve 74 or a linear bearing that can be slidably sleeved on the guide post 71 along the axial direction of the guide post 71, and the sliding seat 72 is connected through the sliding sleeve 74 or the linear shaft to enhance the stability and reliability of the sliding seat 72 moving up and down.

[0070] This invention also provides an air spring support ring assembly device, which includes the positioning fixture for sealing the opening of the airbag 5 provided in any of the above embodiments. Since the air spring support ring assembly device possesses all the technical features of the positioning fixture for sealing the opening of the airbag 5 provided in any of the above embodiments, it has the same technical effects as the aforementioned positioning fixture for sealing the opening of the airbag 5.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air spring support ring assembly apparatus, characterized by, The air spring support ring assembly device comprises: a workbench; a first sealing module arranged on the workbench, the first sealing module comprising a positioning sleeve sleeved on the bottom of the air bag to position the air bag on the workbench and a closing assembly for closing the bottom opening of the air bag; a second sealing module movably arranged on the workbench along the axial direction of the positioning sleeve, the second sealing module comprising a main shaft mechanism, a guide plug arranged on the main shaft mechanism and a motor for driving the rotation of the main shaft mechanism; and a first linear actuator for driving the second sealing module to move up and down, the first linear actuator being fixedly installed on the workbench; wherein the guide plug is provided with a clamping position for positioning a support ring, and the first sealing module is provided with a gas supply channel for inflating the air bag; when the first linear actuator drives the second sealing module to move to the position where the guide plug contacts the top opening of the air bag, the first linear actuator drives the second sealing module to continue to move downward, the motor drives the main shaft mechanism to rotate the guide plug, and at the same time, an external inflation gas source inflates the air bag through the gas supply channel, so that the air bag expands radially to a preset tight state, until the support ring on the guide plug is assembled to a preset position inside the air bag, and the first linear actuator drives the second sealing module to move to the position where the guide plug is separated from the air bag; The air spring support ring assembly device further comprises a clamping mechanism for clamping and positioning the support ring at the mounting position of the air bag.

2. The air spring support ring assembly apparatus of claim 1, wherein, The diameter of the guide plug is greater than the inner diameter of the air bag, the outer diameter of the support ring is greater than the inner diameter of the air bag, and the outer diameter of the support ring is smaller than the diameter of the guide plug.

3. The air spring support ring assembly apparatus of claim 1, wherein, The guide plug comprises a plug for supporting the inner wall of the air bag to close the top of the air bag and a conical guide part for guiding the plug to insert into the top opening of the air bag, and the connection between the conical guide part and the plug forms the clamping position.

4. The air spring support ring assembly apparatus of claim 1, wherein, The guide plug is provided with a magnetic member corresponding to the clamping position, and the magnetic member is used to magnetically attract the support ring.

5. The air spring support ring assembly apparatus of claim 1, wherein, The closing assembly comprises a support seat for supporting the bottom end of the positioning sleeve and an expansion structure arranged on the support seat, and the inner wall of the positioning sleeve is provided with a stop step for abutting against the bottom end of the air bag, and the expansion structure is used to close the bottom opening of the air bag.

6. The air spring support ring assembly apparatus of claim 1, wherein, The first sealing module further comprises a tightening ring for sleeving on the air bag, the tightening ring is arranged adjacent to the mounting position on the air bag, and the tightening ring is located above the mounting position.

7. The air spring support ring assembly apparatus of claim 1, wherein, The clamping mechanism comprises a pair of clamping blocks arranged in pairs, a second linear actuator for driving the movement of the clamping blocks and a bracket supporting the second linear actuator, the bracket is arranged on the workbench, and each clamping block is connected with a corresponding second linear actuator.

8. The air spring support ring assembly apparatus of claim 7, wherein, The clamping mechanism further comprises a first linear slide rail mechanism for slidingly arranging the clamping block on the corresponding support, the first linear slide rail mechanism comprising a first slide rail arranged on the support and a first slide block slidingly mounted on the first slide rail, the clamping block being connected with the corresponding first slide block.

9. The air spring support ring assembly apparatus of any one of claims 1 to 8, wherein, The air spring support ring assembly device further comprises a guiding mechanism for guiding the second sealing module to move up and down, the guiding mechanism comprising at least two vertically arranged guiding columns, a sliding seat slidingly mounted on the guiding columns through a linear bearing, and a fixed seat fixedly arranged on the sliding seat, the main shaft mechanism being rotationally arranged on the fixed seat, the motor being mounted on the fixed seat, and the sliding seat being connected with the first linear driver.

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