Steering wheel air bag automatic wrapping device and wrapping method thereof

Abstract

The invention relates to the technical field of automobile air bag manufacturing, in particular to a steering wheel air bag automatic wrapping device and a wrapping method.The steering wheel air bag automatic wrapping device comprises a base and further comprises a turnover mechanism, an air bag feeding mechanism and a supporting table used in cooperation with air bag cloth, a rotating table is arranged on the base, and a plurality of supporting clamps are arranged on the rotating table; the multiple supporting clamps are arranged around the air bag cloth, the multiple supporting clamps are used for clamping the corresponding supporting tables and expanding the air bag cloth, in the using process, the supporting tables are clamped through the multiple supporting clamps on the rotating table, the air bag cloth is expanded, an air bag to be wrapped is placed on the stations of the rotating table through the air bag feeding mechanism, and the air bag to be wrapped is placed on the stations of the rotating table. Displacement of the air bags on the rotating table is limited through the ejector rod mechanism, the supporting tables are overturned one by one in cooperation with the overturning mechanism, the air bags are wrapped with the air bag cloth, automatic air bag wrapping is achieved, the production efficiency of the steering wheel air bags can be effectively improved, and the reliability of the air bags is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing of automobile airbags, and in particular to an automatic wrapping device for a steering wheel airbag and a wrapping method thereof. Background Art

[0002] With the continuous growth of car ownership, the safety of cars has received more and more attention. Car steering wheel airbags play an important role in protecting the safety of drivers, so the product quality of car steering wheel airbags should be effectively guaranteed. During the production process of car steering wheel airbags, wrapping cloth is needed to wrap the folded and compressed airbags to ensure that the airbags will not be loose and keep a small volume so that they can be placed in the steering wheel. At present, this process is mainly manually operated by workers, with problems such as low efficiency, poor reliability, and high labor costs. Therefore, it is urgent to develop automated wrapping of steering wheel airbag wrapping cloth to improve the production efficiency of steering wheel airbags, improve the reliability of airbags, and provide strong safety protection for car drivers. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problems that the process of wrapping the folded and compressed airbag with existing wrapping cloth is mainly manual operation by workers, which has low efficiency, poor reliability and high labor cost, an automatic wrapping device for steering wheel airbag and a wrapping method thereof are now provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an automatic wrapping device for a steering wheel airbag, comprising a base, a flipping mechanism, an airbag feeding mechanism and a support table used in conjunction with an airbag cloth, wherein a rotating table is arranged on the base, a plurality of supporting clamps are arranged on the rotating table, the plurality of supporting clamps are arranged around the airbag cloth, the plurality of supporting clamps are used to clamp the corresponding supporting table and spread the airbag cloth, a push rod mechanism is arranged on the base, the push rod mechanism is used to limit the displacement of the airbag on the rotating table, the flipping mechanism is used to clamp the supporting table and drive the supporting table and the airbag cloth to flip to a desired position, and the airbag feeding mechanism is used to position the screws on the airbag and place the airbag on the position of the rotating table;

[0005] The airbag feeding mechanism includes a support rod connected to an external mechanical arm, a positioning plate and an airbag clamp are arranged on the support rod, the positioning plate is used to abut against the airbag and to ensure that the airbag is evenly stressed during the wrapping process, a positioning hole matching the airbag screw is arranged on the positioning plate, the airbag clamp is located between the positioning plate and the airbag, the airbag clamp is used to clamp the airbag, and a first driving mechanism for the positioning plate to move closer to or away from the airbag is arranged on the support rod. Compared with the prior art, the present solution clamps the support table by a plurality of support clamps on the rotating table, and realizes the expansion of the airbag cloth, places the airbag to be wrapped on the work station of the rotating table by the airbag feeding mechanism, limits the displacement of the airbag on the rotating table by the push rod mechanism, and cooperates with the flipping mechanism to flip the support table one by one, so that the airbag cloth is wrapped on the airbag, and realizes the automatic airbag wrapping, which can effectively improve the production efficiency of the steering wheel airbag, improve the reliability of the airbag, and provide a strong safety guarantee for the car driver.

[0006] In order to realize the airbag clamp, some preferred embodiments include two first clamps arranged opposite to each other, and the support rod is provided with a second driving mechanism for driving the two first clamps arranged opposite to each other to move closer or farther away. The second driving mechanism controls the two first clamps to move closer or farther away from each other, thereby clamping the airbag to be wrapped.

[0007] In order to ensure stable and reliable clamping of the airbag, in some preferred embodiments, the first clamping jaw is provided with a groove matching the airbag, and the grooves on the two first clamping jaws are arranged opposite to each other. By providing matching grooves on the first clamping jaws, the airbag can be clamped quickly to ensure reliable clamping temperature of the airbag.

[0008] In order to better clamp the cylinder, in some preferred embodiments, the first clamp includes an upper bottom edge of an arc structure and a baffle of an arc structure arranged below the upper bottom edge of the arc structure, and the upper bottom edge is arranged between the baffle and the positioning plate. The upper bottom edge is used for axial positioning, and the baffle limits circumferential displacement.

[0009] In order to realize the support platform, some embodiments are preferred, wherein the support platform includes a support body and a hollow nail arranged above the support body, wherein the hollow nail is used to cooperate with the hole on the airbag cloth, and a through hole matching the screw is arranged at one end of the hollow nail away from the support body. The hollow nail cooperates with the airbag cloth and the screw respectively to realize the expansion of the airbag package, and the airbag cloth is hinged to the screw by the hollow nail.

[0010] In some preferred embodiments, the flipping mechanism includes two oppositely disposed second clamping claws cooperating with the external mechanical arm.

[0011] In some preferred embodiments, positioning grooves are disposed on opposite sides of the support body, and positioning blocks matching the positioning grooves are disposed on the two second clamping jaws respectively. When the second clamping jaws clamp the support body, the positioning blocks are disposed in the positioning grooves.

[0012] In order to realize the push rod mechanism, some embodiments are preferred, wherein the push rod mechanism includes a column, a push rod is rotatably mounted on the column, and a third driving mechanism for driving the push rod to approach or move away from the airbag is provided on the column. The push rod is driven up or down by the third driving mechanism rotatably mounted on the column, so as to separate or restrict the airbag to be wrapped, thereby ensuring the wrapping accuracy of the airbag. The push rod mechanism is simple, easy to manufacture and maintain, and the push rod can rotate with the airbag.

[0013] In order to realize the third driving mechanism, some preferred embodiments are that the third driving mechanism is a cylinder, one end of the cylinder is fixedly mounted on the column, the push rod is rotatably mounted on the protruding end of the cylinder, and the rotation center axis of the push rod coincides with the rotation center axis of the rotating table. The third driving mechanism is a cylinder, which is a common part and the required model can be directly purchased, which is convenient for installation and later maintenance.

[0014] A wrapping method using the above-mentioned steering wheel airbag automatic wrapping device includes the following steps:

[0015] S1. Clamp the support body of the support table on the support fixture, and make the hollow nails on the support body face upward, so as to complete the clamping of the support table on the support fixture;

[0016] S2, placing the holes on the airbag cloth on the hollow nails of each supporting body, and stretching the airbag cloth to complete the placement of the airbag cloth at the work station;

[0017] S3. A mechanical arm is used to control the airbag feeding mechanism and drive the airbag clamp to move to the required position. The screws on the airbag correspond to the positioning holes on the positioning plate. The first driving mechanism on the support rod drives the positioning plate to move downward and close to the airbag so that the screws on the airbag are inserted into the positioning holes. The second driving mechanism then drives the first clamp to move relatively close to clamp the airbag, and the mechanical arm drives the airbag to the position of the rotating table.

[0018] S4, the cylinder at the control push rod mechanism drives the push rod to descend and abut against the airbag, thereby completing the axial limit of the airbag;

[0019] S5. The second clamp of the flipping mechanism clamps one of the support platforms except the support platform at the positioning plate, the corresponding support fixture on the rotating platform is loosened, and the support platform and the airbag cloth above it are driven to flip through another mechanical arm until the hollow nails on the support body correspond to and are inserted into the screws on the airbag, and the airbag cloth will automatically break away from the hollow nails under the action of tension and be sleeved onto the screws of the airbag, the mechanical arm of the flipping mechanism drives the support platform to reset, and the corresponding support fixture on the rotating platform clamps the support platform, completing the flipping of one of the support platforms;

[0020] S6, the first driving mechanism drives the positioning plate to move up, the positioning hole is disengaged from the screw, the second driving mechanism controls the first clamping jaw to loosen the airbag, drives the airbag to rotate through the rotating table, and reaches the next station, then the first driving mechanism drives the positioning plate to move down, the screw is inserted into the positioning hole, and the second driving mechanism controls the first clamping jaw to clamp the airbag;

[0021] S7, repeating steps S5-S6 until the airbag cloth is wrapped around the airbag;

[0022] S8, controlling the cylinder at the ejector mechanism to drive the ejector to move upward, so that the ejector is separated from the airbag, and the wrapped airbag is clamped by the first clamping claw through the second driving mechanism and transferred to the next process;

[0023] S9. Repeat steps S1-S8.

[0024] The beneficial effects of the present invention are as follows: when in use, the automatic wrapping device for steering wheel airbags and the wrapping method thereof of the present invention clamp the support table through a plurality of support clamps on the rotating table, and realize the expansion of the airbag cloth, place the airbag to be wrapped on the work station of the rotating table through the airbag feeding mechanism, limit the displacement of the airbag on the rotating table through the push rod mechanism, and cooperate with the flipping mechanism to flip the support table one by one, so that the airbag cloth is wrapped on the airbag, and automatic airbag wrapping is realized, which can effectively improve the production efficiency of the steering wheel airbag, improve the reliability of the airbag, provide strong safety protection for the car driver, and avoid the existing process of wrapping the folded and compressed airbag with wrapping cloth, which is mainly manual operation by workers, and has the problems of low efficiency, poor reliability, and high labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a front view of the present invention;

[0028] Figure 3 It is a left side view of the present invention;

[0029] Figure 4 is a top view of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure between the supporting fixture, the supporting platform and the turning mechanism in the present invention;

[0031] Figure 6 It is a schematic diagram of the holes of the airbag wrapping cloth being sleeved on the screws in the present invention.

[0032] In the figure: 1. base;

[0033] 2. Turning mechanism, 201. second clamping jaw, 202. positioning block;

[0034] 3. Airbag feeding mechanism, 301. support rod, 302. positioning plate, 3021. positioning hole, 303. airbag fixture;

[0035] 4. Support platform, 401. Support body, 402. Hollow nail, 403. Positioning groove;

[0036] 5. Rotating table;

[0037] 6. Support fixture;

[0038] 7. Push rod mechanism, 701. column, 702. push rod, 703. third driving mechanism. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with embodiments:

[0040] The present invention is not limited to the following specific embodiments. A person skilled in the art can implement the present invention in various other specific embodiments according to the contents disclosed in the present invention, or any simple changes or modifications made to the design structure and ideas of the present invention fall within the protection scope of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0043] Example 1

[0044] like Figure 1-6 As shown, a steering wheel airbag automatic wrapping device comprises a base 1, a flipping mechanism 2, an airbag feeding mechanism 3 and a support table 4, the support table 4 is used in conjunction with the airbag cloth, a rotating table 5 is provided on the base 1, the rotating table 5 is used to carry the airbag to be wrapped and can drive the airbag to rotate, four supporting clamps 6 are provided on the rotating table 5, in this embodiment, there are four supporting clamps 6, and they are pneumatic fingers, in addition to pneumatic fingers, electric clamps can also be used, in addition to four, the number can also be five or six, the four supporting clamps 6 are arranged around the airbag cloth, the four supporting clamps 6 are respectively placed in the four directions of front, back, left and right of the rotating table 5, the four supporting clamps 6 are used to clamp the corresponding supporting table 4 and stretch the airbag cloth, a push rod mechanism 7 is provided on the base 1, the push rod mechanism 7 is used to limit the displacement of the airbag on the rotating table 5, the flipping mechanism 2 is used to clamp the supporting table 4 and drive the supporting table 4 and the airbag cloth to flip to the required position, the airbag feeding mechanism 3 is used to position the screws on the airbag and place the airbag on the position of the rotating table 5;

[0045] The airbag feeding mechanism 3 includes a support rod 301 connected to an external mechanical arm, and a positioning plate 302 and an airbag clamp 303 are arranged on the support rod 301. The positioning plate 302 is arranged on the airbag to ensure that the airbag is evenly stressed during wrapping, and prevents the flip mechanism 2 from tilting due to uneven force on the airbag during the flipping and wrapping process. A positioning hole 3021 is arranged on the positioning plate 302, and the positioning hole 3021 matches the screw on the airbag. The airbag clamp 303 is located between the positioning plate 302 and the airbag, and the airbag clamp 303 is used to clamp the airbag. The support rod 301 is provided with a first driving mechanism, and the first driving mechanism is used to position the positioning plate 302 approaches or moves away from the airbag. In this embodiment, the first driving mechanism is a cylinder, which can also be said to be an electric push rod. The airbag clamp 303 includes two first clamping jaws arranged opposite to each other. The support rod 301 is provided with a second driving mechanism for driving the two relatively arranged clamping jaws to approach or move away. In this embodiment, the second driving mechanism is a cylinder, which can also be said to be an electric push rod. The first clamping jaw is provided with a groove matching the airbag. The grooves on the two first clamping jaws are arranged opposite to each other. The first clamping jaw includes an upper bottom edge of an arc structure and a baffle of an arc structure arranged below the upper bottom edge of the arc structure. The upper bottom edge is arranged between the baffle and the positioning plate 302.

[0046] The support platform 4 includes a support body 401 and a hollow nail 402 arranged above the support body 401. The hollow nail 402 is used to cooperate with the holes on the airbag cloth. One end of the hollow nail 402 away from the support body 401 is provided with a through hole matching the screw.

[0047] The flipping mechanism 2 includes two second clamps 201 that are oppositely arranged to cooperate with the external robotic arm, and positioning grooves 403 are oppositely arranged on both sides of the support body 401. Positioning blocks 202 that match the positioning grooves 403 are respectively arranged on the two second clamps 201. When the second clamps 201 clamp the support body 401, the positioning blocks 202 are arranged in the positioning grooves 403.

[0048] The push rod mechanism 7 includes a column 701, on which a push rod 702 is rotatably mounted. The column 701 is provided with a third driving mechanism 703 for driving the push rod 702 to approach or move away from the airbag. The third driving mechanism 703 is a cylinder, one end of which is fixedly mounted on the column 701. The push rod 702 is rotatably mounted on the protruding end of the cylinder, and the rotation center axis of the push rod 702 coincides with the rotation center axis of the rotating table 5.

[0049] Example 2

[0050] Embodiment 2 is a method of using the device in Embodiment 1, specifically: a wrapping method using the above-mentioned steering wheel airbag automatic wrapping device, comprising the following steps:

[0051] S1, the support bodies 401 of the four support platforms 4 are clamped on the four support fixtures 6 on the rotating platform 5 respectively, and the hollow nails 402 on the support bodies 401 are facing upwards, so that the four support fixtures 6 clamp the corresponding support platforms 4;

[0052] S2, placing the holes on the airbag cloth on the hollow nails 402 of each supporting body 401, and stretching the airbag cloth to complete the placement of the airbag cloth at the work station;

[0053] S3, a mechanical arm is used to control the airbag feeding mechanism 3, and drives the airbag clamp 303 to move to the required position, the screw on the airbag corresponds to the positioning hole 3021 on the positioning plate 302, and then the cylinder at the first driving mechanism on the support rod 301 drives the positioning plate 302 to move down and close to the airbag, so that the screw on the airbag is inserted into the positioning hole 3021, so as to realize the positioning of the airbag, and then the cylinder at the second driving mechanism drives the two first clamps to move relatively close to each other and clamp the airbag, and then the mechanical arm drives the airbag to the position of the rotating table 5;

[0054] S4, control the cylinder at the push rod mechanism 7 to drive the push rod 702 to descend and abut against the airbag, thereby completing the axial limit of the airbag;

[0055] S5. The second clamp 201 of the flipping mechanism 2 clamps one of the support platforms 4 except the support platform 4 at the positioning plate 302. The corresponding support fixture 6 on the rotating table 5 loosens the support platform 4, and drives the support platform 4 and the airbag cloth above it to flip along the specified trajectory through another mechanical arm, until the hollow nail 402 on the support body 401 corresponds to and is inserted into the screw on the airbag. At this time, a force is applied to one side of the airbag. Since the flipping mechanism 2 and the airbag feeding mechanism 3 are arranged relative to each other, the force on the airbag is kept balanced under the action of the airbag feeding mechanism 3 to avoid uneven force during the flipping process of the airbag and causing it to tilt. The airbag cloth will automatically detach from the hollow nail 402 under the action of tension and be sleeved on the screw of the airbag. The support platform 4 is then reset by the mechanical arm of the flipping mechanism 2. The corresponding support fixture 6 on the rotating table 5 clamps the support platform 4 to complete the flipping of one of the support platforms 4. At this time, the airbag cloth on one support platform 4 is wrapped around the airbag.

[0056] S6, the first driving mechanism drives the positioning plate 302 to move upward, the positioning hole 3021 is disengaged from the screw, the second driving mechanism controls the first clamping jaw to loosen the airbag, drives the airbag to rotate through the rotating table 5, and reaches the next station, then the first driving mechanism drives the positioning plate 302 to move downward, the screw is inserted into the positioning hole 3021, and the second driving mechanism controls the first clamping jaw to clamp the airbag;

[0057] S7, repeating steps S5-S6 until the airbag cloth is completely wrapped around the airbag;

[0058] S8, control the cylinder at the push rod mechanism 7 and drive the push rod 702 to move upward, the push rod 702 is separated from the airbag, and the wrapped airbag is controlled by the second driving mechanism to control the first clamping claw to clamp the airbag and transfer it to the next process;

[0059] S9. Repeat steps S1-S8.

[0060] The above-mentioned ideal embodiments of the present invention are for inspiration. Through the above-mentioned description, relevant staff can make various changes and modifications without departing from the technical idea of ​​the present invention. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A steering wheel airbag automatic wrapping device, comprising a base (1), characterized in that: It also includes a flipping mechanism (2), an airbag feeding mechanism (3) and a support platform (4) for use with the airbag cloth. The base (1) is provided with a rotating platform (5). The rotating platform (5) is provided with a plurality of supporting clamps (6). The plurality of supporting clamps (6) are arranged around the airbag cloth. The plurality of supporting clamps (6) are used to clamp the corresponding supporting platform (4) and to open the airbag cloth. The base (1) is provided with a push rod mechanism (7). The push rod mechanism (7) is used to limit the displacement of the airbag on the rotating platform (5). The flipping mechanism (2) is used to clamp the supporting platform (4) and drive the supporting platform (4) and the airbag cloth to flip to a desired position. The airbag feeding mechanism (3) is used to position the screws on the airbag and place the airbag on the position of the rotating platform (5). The airbag feeding mechanism (3) comprises a support rod (301) connected to an external mechanical arm, a positioning plate (302) and an airbag clamp (303) are arranged on the support rod (301), the positioning plate (302) is used to abut against the airbag and to ensure that the airbag is evenly stressed during the wrapping process, the positioning plate (302) is provided with a positioning hole (3021) matching the airbag screw, the airbag clamp (303) is located between the positioning plate (302) and the airbag, the airbag clamp (303) is used to clamp the airbag, and the support rod (301) is provided with a first driving mechanism for moving the positioning plate (302) close to or away from the airbag.

2. The steering wheel airbag automatic wrapping device according to claim 1, characterized in that: The airbag clamp (303) comprises two first clamping jaws arranged opposite to each other, and the support rod (301) is provided with a second driving mechanism for driving the two first clamping jaws arranged opposite to each other to move closer or further away.

3. The automatic wrapping device for steering wheel airbag according to claim 2, characterized in that: The first clamping jaw is provided with a groove matching the airbag, and the grooves on the two first clamping jaws are arranged opposite to each other.

4. The automatic wrapping device for steering wheel airbag according to claim 3, characterized in that: The first clamping jaw comprises an upper bottom edge of an arc structure and a baffle plate of the arc structure arranged below the upper bottom edge of the arc structure, and the upper bottom edge is arranged between the baffle plate and the positioning plate (302).

5. The steering wheel airbag automatic wrapping device according to claim 1, characterized in that: The support platform (4) comprises a support body (401) and a hollow nail (402) arranged above the support body (401), wherein the hollow nail (402) is used to cooperate with a hole on the airbag cloth, and a through hole matching the screw is arranged at one end of the hollow nail (402) away from the support body (401).

6. The steering wheel airbag automatic wrapping device according to claim 5, characterized in that: The turning mechanism (2) comprises two second clamping claws (201) arranged opposite to each other and cooperating with the external mechanical arm.

7. The automatic wrapping device for steering wheel airbag according to claim 6, characterized in that: Positioning grooves (403) are arranged opposite to each other on two sides of the supporting body (401), and positioning blocks (202) matching the positioning grooves (403) are respectively arranged on the two second clamping jaws (201); when the second clamping jaws (201) clamp the supporting body (401), the positioning blocks (202) are arranged in the positioning grooves (403).

8. The steering wheel airbag automatic wrapping device according to claim 1, characterized in that: The push rod mechanism (7) comprises a column (701), on which a push rod (702) is rotatably mounted, and on which a third driving mechanism (703) for driving the push rod (702) to move closer to or away from the airbag is arranged.

9. The steering wheel airbag automatic wrapping device according to claim 8, characterized in that: The third driving mechanism (703) is a cylinder, one end of which is fixedly mounted on the column (701), and the push rod (702) is rotatably mounted on the protruding end of the cylinder, and the rotation center axis of the push rod (702) coincides with the rotation center axis of the rotating table (5).

10. A wrapping method using the steering wheel airbag automatic wrapping device according to any one of claims 1 to 9, characterized in that: The steps are as follows: S1, clamping the support body (401) of the support platform (4) on the support fixture (6), and making the hollow nail (402) on the support body (401) face upward, so as to complete the clamping of the support platform (4) on the support fixture (6); S2, placing the holes on the airbag cloth on the hollow nails (402) of each supporting body (401) correspondingly, and expanding the airbag cloth, so that the airbag cloth is placed on the work station; S3, a mechanical arm is used to control the airbag feeding mechanism (3) and drive the airbag clamp (303) to move to the desired position, the screw on the airbag corresponds to the positioning hole (3021) on the positioning plate (302), and then the first driving mechanism on the support rod (301) drives the positioning plate (302) to move downward and close to the airbag, so that the screw on the airbag is inserted into the positioning hole (3021), and then the second driving mechanism drives the first clamping claw to move relatively close to and clamp the airbag, and the mechanical arm drives the airbag to the position of the rotating table (5); S4, controlling the cylinder at the push rod mechanism (7) to drive the push rod (702) to descend and abut against the airbag, thereby completing the axial limit of the airbag; S5. The second clamp (201) of the flipping mechanism (2) clamps one of the support platforms (4) except the support platform (4) at the positioning plate (302), the corresponding support fixture (6) on the rotating platform (5) is loosened, and the support platform (4) and the airbag cloth thereon are driven to flip through another mechanical arm until the hollow nail (402) on the support body (401) corresponds to and is inserted into the screw on the airbag, and the airbag cloth automatically detaches from the hollow nail (402) under the action of tension and is sleeved onto the screw of the airbag, the mechanical arm of the flipping mechanism (2) drives the support platform (4) to reset, and the corresponding support fixture (6) on the rotating platform (5) clamps the support platform (4), completing the flipping of one of the support platforms (4); S6, the first driving mechanism drives the positioning plate (302) to move upward, the positioning hole (3021) is disengaged from the screw, the second driving mechanism controls the first clamping jaw to loosen the airbag, and drives the airbag to rotate through the rotating table (5) and reach the next station, then the first driving mechanism drives the positioning plate (302) to move downward, the screw is inserted into the positioning hole (3021), and the second driving mechanism controls the first clamping jaw to clamp the airbag; S7, repeating steps S5-S6 until the airbag cloth is wrapped around the airbag; S8, controlling the cylinder at the push rod mechanism (7) to drive the push rod (702) to move upward, so that the push rod (702) is separated from the airbag, and the wrapped airbag is clamped by the first clamping claw controlled by the second driving mechanism and transferred to the next process; S9. Repeat steps S1-S8.

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