Automatic wrapping device for steering wheel airbag and wrapping method thereof

Abstract

An automatic wrapping device for a steering wheel airbag and a wrapping method thereof. The automatic wrapping device for a steering wheel airbag comprises a base (1), a flipping mechanism (2), an airbag feeding mechanism (3), and support tables (4) configured to be used in cooperation with an airbag cloth, wherein a rotary table (5) is provided on the base; a plurality of support clamps (6) are provided on the rotary table, the plurality of support clamps are arranged around the airbag cloth, and the plurality of support clamps are configured to clamp the corresponding support tables and expand the airbag cloth; and an ejector rod mechanism (7) is provided on the base. During usage, the support tables are clamped and the airbag cloth is expanded by means of the plurality of support clamps on the rotary table, an airbag to be wrapped is placed on a station of the rotary table by means of the airbag feeding mechanism, the displacement of the airbag on the rotary table is limited by means of the ejector rod mechanism, and the support tables are flipped one by one in cooperation with the flipping mechanism, such that the airbag cloth is wrapped around the airbag, and automatic airbag wrapping is achieved, thereby effectively improving the production efficiency of steering wheel airbags, and improving the reliability of the airbags.

Description

Steering wheel airbag automatic wrapping device and wrapping method 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 in the number of cars on the road, automobile safety issues are receiving increasing attention. Automotive steering wheel airbags play a vital role in protecting the driver's safety, and therefore their product quality must be strongly guaranteed. During the production process of automotive steering wheel airbags, the folded and compressed airbags are wrapped with a wrapping cloth to ensure they do not become loose and maintain a small size for easy placement into the steering wheel. Currently, this process is primarily performed manually by workers, resulting in low efficiency, poor reliability, and high labor costs. Therefore, there is an urgent need to develop automated wrapping methods for steering wheel airbag wrapping to improve the production efficiency and reliability of steering wheel airbags, thereby providing 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 wrapping cloth is mainly manual operation by workers, which has low efficiency, poor reliability and high labor costs, an automatic wrapping device and wrapping method for a steering wheel airbag are now provided.

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

[0005] The airbag feeding mechanism includes a support rod connected to an external robotic arm, the support rod being provided with a positioning plate and an airbag clamp. The positioning plate is used to abut against the airbag and ensure that the airbag is evenly stressed during the wrapping process. The positioning plate is provided with a positioning hole that matches the airbag screw. The airbag clamp is located between the positioning plate and the airbag, and is used to clamp the airbag. The support rod is provided with a first driving mechanism for moving the positioning plate closer to or farther from the airbag. Compared to the prior art, this solution uses a plurality of support clamps on a rotating table to clamp the support table and expand the airbag cloth. The airbag feeding mechanism places the airbag to be wrapped on a work station of the rotating table, and a push rod mechanism is used to limit the displacement of the airbag on the rotating table. The support table is flipped one by one in cooperation with a flipping mechanism, so that the airbag cloth is wrapped around the airbag, thereby achieving automated airbag wrapping. This can effectively improve the production efficiency of steering wheel airbags, enhance the reliability of airbags, and provide strong safety protection for car drivers.

[0006] To implement the airbag clamp, some preferred embodiments include two first clamping jaws disposed opposite each other, and a second drive mechanism disposed on the support rod for driving the two oppositely disposed clamping jaws toward or away from each other. The second drive mechanism controls the two first clamping jaws to move toward or away from each other, thereby clamping the airbag to be wrapped.

[0007] To ensure stable and reliable clamping of the airbag, in some preferred embodiments, the first clamping jaws are provided with grooves that match the airbag, and the grooves on the two first clamping jaws are arranged opposite each other. By providing matching grooves on the first clamping jaws, the airbag can be clamped quickly and the airbag clamping temperature can be ensured to be reliable.

[0008] To better clamp the cylinder, in some preferred embodiments, the first clamping jaw includes an arc-shaped upper bottom edge and an arc-shaped baffle disposed below the upper bottom edge, wherein the upper bottom edge is disposed between the baffle and the positioning plate. The upper bottom edge provides axial positioning, while the baffle limits circumferential displacement.

[0009] To implement the support platform, some preferred embodiments include a support body and a hollow pin disposed above the support body. The hollow pin is configured to engage with a hole in the airbag fabric. The end of the hollow pin, distal from the support body, is provided with a through hole that mates with a screw. The hollow pin engages with the airbag fabric and the screw, respectively, to expand the airbag package and articulate the airbag fabric to the screw via the hollow pin.

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

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

[0012] To implement the push rod mechanism, some preferred embodiments include a post with a push rod rotatably mounted on the post. The post is also provided with a third drive mechanism for driving the push rod toward or away from the airbag. The third drive mechanism rotatably mounted on the post drives the push rod upward or downward, thereby detaching or restraining the airbag to be wrapped, thereby ensuring the accuracy of airbag wrapping. The push rod mechanism is simple, easy to manufacture and maintain, and the push rod rotates with the airbag.

[0013] To implement the third drive mechanism, some preferred embodiments include a pneumatic cylinder, one end of which is fixedly mounted on the column, and the push rod rotatably mounted on the extended end of the cylinder, with the rotational axis of the push rod coinciding with the rotational axis of the turntable. The pneumatic cylinder is a commonly available component, and the required model can be purchased directly, facilitating installation and subsequent 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 platform on the support fixture, and make the hollow nails on the support body face upward, completing the clamping of the support platform on the support fixture;

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

[0017] S3. A robotic arm controls the airbag feeding mechanism and drives the airbag clamp to the desired 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 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 clamping jaws to move relatively close to each other and clamp the airbag. The robotic arm then drives the airbag to the position on the rotary 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 clamping claw of the flipping mechanism clamps one of the support platforms except the support platform at the positioning plate, the corresponding support clamp on the rotating platform is loosened, and another mechanical arm drives the support platform and the airbag cloth above it to flip until the hollow nails on the support body correspond to and are inserted into the screws on the airbag. Under the action of tension, the airbag cloth automatically detaches from the hollow nails and is sleeved onto the screws of the airbag. The mechanical arm of the flipping mechanism drives the support platform to reset, and the corresponding support clamp 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 upward, the positioning hole is disengaged from the screw, the second driving mechanism controls the first clamping jaw to release the airbag, and the airbag is driven to rotate through the rotating table and reaches the next station, then the first driving mechanism drives the positioning plate downward, 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 rod upward, causing the ejector rod to separate from the airbag. The wrapped airbag is then clamped by the first gripper controlled by the second drive 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 number of support clamps on the rotating table, and the airbag cloth is stretched out, and the airbag to be wrapped is placed on the work station of the rotating table through the airbag feeding mechanism, and the displacement of the airbag on the rotating table is limited by the push rod mechanism, and the support table is flipped one by one in conjunction with the flipping mechanism, so that the airbag cloth is wrapped on the airbag, realizing automatic airbag wrapping, 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 wrapping cloth wrapping process of the folded and compressed airbag mainly by manual operation of workers, which has the problems of low efficiency, poor reliability, and high labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] FIG1 is a schematic diagram of a three-dimensional structure of the present invention;

[0027] FIG2 is a front view of the present invention;

[0028] FIG3 is a left side view of the present invention;

[0029] FIG4 is a top view of the present invention;

[0030] 5 is a schematic structural diagram of the support fixture, the support platform and the flip mechanism in the present invention;

[0031] FIG6 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. Flipping 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 the embodiments:

[0040] The present invention is not limited to the following specific embodiments. Based on the disclosure of the present invention, a person skilled in the art may adopt a variety of other specific embodiments to implement the present invention. Any simple changes or modifications made to the design structure and concept of the present invention fall within the scope of protection of the present invention. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other unless they 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 orientations or positional relationships based on the orientations 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", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. 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 expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] Example 1

[0044] As shown in Figures 1-6, an automatic wrapping device for a steering wheel airbag includes a base 1, a turning mechanism 2, an airbag feeding mechanism 3 and a support platform 4. The support platform 4 is used in conjunction with the airbag cloth. A rotating platform 5 is provided on the base 1. The rotating platform 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 platform 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, there can also be five or six supporting clamps. The four supporting clamps 6 are arranged around the airbag cloth. The four supporting clamps 6 are respectively placed in the front, back, left and right directions of the rotating platform 5. The four supporting clamps 6 are used to clamp the corresponding supporting platform 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 platform 5. The turning mechanism 2 is used to clamp the supporting platform 4 and drive the supporting platform 4 and the airbag cloth to flip to the required work position. The airbag feeding mechanism 3 is used to position the screws on the airbag and place the airbag on the work position of the rotating platform 5.

[0045] The airbag feeding mechanism 3 includes a support rod 301 connected to an external robotic arm, and a positioning plate 302 and an airbag clamp 303 are provided on the support rod 301. The positioning plate 302 is placed on the airbag to ensure that the airbag is evenly stressed during wrapping, and prevents the airbag from tilting due to uneven stress during the flipping and wrapping process of the flipping mechanism 2. A positioning hole 3021 is provided 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. The airbag clamp 303 is used to clamp the airbag. A first driving mechanism is provided on the support rod 301. The first driving mechanism is used to position the 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 oppositely arranged clamping jaws to move closer or farther 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. A through hole matching the screw is provided at one end of the hollow nail 402 away from the support body 401.

[0047] The flipping mechanism 2 includes two oppositely arranged second clamps 201 that cooperate with the external robotic arm, and positioning grooves 403 are oppositely arranged on both sides of the support body 401. The two second clamps 201 are respectively provided with positioning blocks 202 that match the positioning grooves 403. When the second clamps 201 clamp the support body 401, the positioning blocks 202 are set 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 move closer to or away from the airbag. 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. The rotation center axis of the push rod 702 coincides with the rotation center axis of the rotating table 5.

[0049] Example 2

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

[0051] S1. Clamp the supporting bodies 401 of the four supporting platforms 4 onto the four supporting fixtures 6 on the rotating platform 5, respectively, and make the hollow nails 402 on the supporting bodies 401 face upward, so that the four supporting fixtures 6 clamp the corresponding supporting platforms 4;

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

[0053] S3. A robotic arm controls the airbag feeding mechanism 3 and drives the airbag clamp 303 to move to the desired position. The screws on the airbag correspond to the positioning holes 3021 on the positioning plate 302. The cylinder at 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 screws on the airbag are inserted into the positioning holes 3021 to achieve the positioning of the airbag. The cylinder at the second driving mechanism then drives the two first clamps to move relatively close to each other and clamp the airbag. Then, the robotic arm drives the airbag to the position on 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, completing the axial limit of the airbag;

[0055] S5, the second clamping claw 201 of the flipping mechanism 2 clamps one of the support platforms 4 except the support platform 4 at the positioning plate 302 among the several support platforms 4, and the corresponding support clamp 6 on the rotating platform 5 loosens the support platform 4, and drives the support platform 4 and the airbag cloth above it to flip along the specified trajectory line 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 on the airbag during the flipping process, which causes it to tilt. The airbag cloth will automatically break away from the hollow nail 402 under the action of tension and be put on the screw of the airbag. The support platform 4 is then reset by the mechanical arm of the flipping mechanism 2, and the corresponding support clamp 6 on the rotating platform 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 upward, the positioning hole 3021 is disengaged from the screw, and the second driving mechanism controls the first clamping jaw to release 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 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, controlling the cylinder at the ejector mechanism 7 to drive the ejector 702 upward, so that the ejector 702 is separated from the airbag. The wrapped airbag is then clamped by the first clamping jaw controlled by the second driving mechanism and transferred to the next process;

[0059] S9. Repeat steps S1-S8.

[0060] The above description of the preferred embodiments of the present invention is intended to serve as a guide. Based on the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and 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: The invention also includes a turning 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 stretch 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 turning mechanism (2) is used to clamp the supporting platform (4) and drive the supporting platform (4) and the airbag cloth to turn to a desired working position. The airbag feeding mechanism (3) is used to position the screws on the airbag and place the airbag on the working position of the rotating platform (5). The airbag feeding mechanism (3) includes a support rod (301) connected to an external mechanical arm, a positioning plate (302) and an airbag clamp (303) are provided 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 automatic wrapping device for a steering wheel airbag 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 to or further away from each other.

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

4. The automatic steering wheel airbag wrapping device according to claim 3, characterized in that: The first clamping jaw comprises an upper bottom edge of an arc structure and a baffle of the 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 (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 provided at one end of the hollow nail (402) away from the support body (401).

6. The automatic wrapping device for a steering wheel airbag 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 an external mechanical arm.

7. The automatic wrapping device for a steering wheel airbag according to claim 6, characterized in that: Positioning grooves (403) are arranged on opposite sides of the support 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 support 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), a push rod (702) is rotatably mounted on the column (701), and a third driving mechanism (703) for driving the push rod (702) to move closer to or away from the airbag is provided on the column (701).

9. The automatic steering wheel airbag 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 platform (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. Clamp the support body (401) of the support platform (4) on the support fixture (6), and make 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) accordingly, and expanding the airbag cloth to complete the placement of the airbag cloth at the work station; S3. A robotic 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). 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). Then, the second driving mechanism drives the first clamping jaw to move relatively close to and clamp the airbag. The robotic arm drives the airbag to the position on 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 limitation of the airbag; S5. The second clamping claw (201) of the flipping mechanism (2) clamps one of the support platforms (4) except the support platform (4) at the positioning plate (302), and the corresponding support clamp (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 supporting 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, and the mechanical arm of the flipping mechanism (2) drives the support platform (4) to reset, and the corresponding support clamp (6) on the rotating platform (5) clamps the support platform (4), completing the flipping work 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 ejector mechanism (7) and driving the ejector (702) to move upward, so that the ejector (702) is separated from the airbag, and the wrapped airbag is clamped by the first clamping jaw controlled by the second driving mechanism and transferred to the next process; S9. Repeat steps S1-S8.

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