Tire clamping method of tire conveying lifting appliance on automatic assembly line

Abstract

The invention discloses a tire clamping method of a tire conveying lifting appliance on an automatic assembly line. The problem of how to design a lifting appliance which can well adapt to lifting and conveying of tires among different stations on mixed line production is solved. A vertical ladder-like hanging bracket (5) is fixedly connected to the lower bottom surface of a frame (1) shaped like a Chinese character'tian 'and suspended in the air and capable of moving horizontally, and a horizontal cantilever beam (7) for supporting tires is fixedly connected to the lower end of the vertical ladder-like hanging bracket (5); a guide rail pair is arranged on the lower bottom face of the frame (1) shaped like the Chinese character'tian ', a lead screw nut (15) is connected to a lead screw (11), and a swing arm moving frame (16) is connected to the lower bottom face of the lead screw nut (15). A pair of swing arms capable of being opened and closed is connected to the swing arm moving frame (16) in a hanging mode. Tyres (31) are hung on the horizontal cantilever beam (7) and arranged between the pair of swing arms and the vertical ladder-shaped hanging bracket (5), and the applicability to tires produced and conveyed in a mixed line mode is high.

Description

Technical Field

[0001] The invention relates to a sling on a logistics conveying line, in particular to a method for clamping a tire by a tire conveying sling on an automatic assembly line in the field of tractor production industry. Background Art

[0002] Due to different vehicle models and different functions of the front and rear tires of tractors, the diameters and widths of the tires of tractors vary greatly. In tractor production and assembly workshops, tractor tires are mostly transported by aerial conveyor lines to transport the tires to be assembled to the designated workstations of the assembly line. During transportation, the tires are lifted into the air by a sling to complete the transportation. In existing tractor tire conveyor lines, tire slings are generally set for tires of fixed models, and are not competent for the lifting of tires of different models and widths, especially the automatic loading and unloading requirements of automated production lines for tires. How to design a sling that can well adapt to the lifting and transportation of tires between different workstations in mixed-line production has become a difficult problem that urgently needs to be solved on site. Summary of the invention

[0003] The invention provides a method for clamping a tire by a tire conveying hanger on an automatic assembly line, and solves the technical problem of how to design a hanger that can well adapt to the lifting and conveying of tires between different workstations in mixed-line production.

[0004] The present invention solves the above technical problems through the following technical solutions: A tire conveying hanger for an automatic assembly line comprises a field-shaped frame and a tire suspended in the air and movable horizontally, wherein a left longitudinal beam, a middle longitudinal beam and a right longitudinal beam are respectively arranged on the field-shaped frame; a vertical ladder-shaped hanger is fixedly connected to the lower bottom surface of the middle longitudinal beam, and a horizontal cantilever beam supporting the tire is fixedly connected to the lower end of the vertical ladder-shaped hanger; two parallel guide rails in the left and right directions are arranged between the lower bottom surface of the middle longitudinal beam and the lower bottom surface of the right longitudinal beam, a right screw support seat and a left screw support seat are respectively arranged on the lower bottom surface of the field-shaped frame in the two parallel guide rails, a screw is arranged between the right screw support seat and the left screw support seat, a screw drive motor is connected to the left end of the screw, and the screw drive motor is suspended on the lower bottom surface of the left longitudinal beam. On the bottom surface, a lead screw nut is connected to the lead screw, a swing arm moving frame is connected to the lower bottom surface of the lead screw nut, and a rear guide rail slider connecting seat, a front guide rail slider connecting seat and a lead screw nut connecting seat are respectively arranged on the top surface of the swing arm moving frame, a rear guide rail slider is connected to the rear guide rail slider connecting seat, the rear guide rail slider is movably connected to the rear guide rail of the two parallel guide rails, a front guide rail slider is connected to the front guide rail slider connecting seat, the front guide rail slider is connected to the front guide rail of the two parallel guide rails, and the lead screw nut connecting seat is fixedly connected to the lead screw nut; a pair of swing arms that can be opened and closed are suspended on the swing arm moving frame; a tire is hung on the horizontal cantilever beam, and the tire is arranged between a pair of swing arms and the vertical ladder-shaped hanger.

[0005] An inverted L-shaped suspension arm is fixedly connected to the middle part of the right side facade of the right longitudinal beam, and a conical track plate extending horizontally to the left is connected to the lower end of the inverted L-shaped suspension arm; a front swing arm hinge seat and a rear swing arm hinge seat are respectively arranged on the lower bottom surface of the swing arm moving frame, the front swing arm is hinged on the front swing arm hinge seat, and the rear swing arm is hinged on the rear swing arm hinge seat. The pair of swing arms are composed of a front swing arm and a rear swing arm, a torsion spring is arranged between the front swing arm and the front swing arm hinge seat, and a torsion spring is arranged between the rear swing arm and the rear swing arm hinge seat, a front swing arm opening and closing roller is arranged on the rear side facade of the front swing arm, the front swing arm opening and closing roller is movably matched with the front conical surface of the conical track plate, and a rear swing arm opening and closing roller is arranged on the front side facade of the rear swing arm, and the rear swing arm opening and closing roller is movably matched with the rear conical surface of the conical track plate.

[0006] Buffer rollers are arranged at intervals on the right side facade of the vertical ladder-shaped hanger, a front buffer clamping plate is arranged on the left side facade of the front swing arm, and a rear buffer clamping plate is arranged on the left side facade of the rear swing arm; an inverted T-shaped support block is fixedly arranged on the lower bottom surface of the swing arm moving frame between the front swing arm hinge seat and the rear swing arm hinge seat when the two swing arms are closed.

[0007] A method for clamping a tire by a tire conveying hanger on an automatic assembly line is achieved by the tire conveying hanger, which comprises a field-shaped frame and a tire that are suspended in the air and can move horizontally, a left longitudinal beam, a middle longitudinal beam and a right longitudinal beam are respectively arranged on the field-shaped frame; a vertical ladder-shaped hanger is fixedly connected to the lower bottom surface of the middle longitudinal beam, and a horizontal cantilever beam supporting the tire is fixedly connected to the lower end of the vertical ladder-shaped hanger; two parallel guide rails in the left and right directions are arranged between the lower bottom surface of the middle longitudinal beam and the lower bottom surface of the right longitudinal beam, a right screw support seat and a left screw support seat are respectively arranged on the lower bottom surface of the field-shaped frame in the two parallel guide rails, a screw is arranged between the right screw support seat and the left screw support seat, a screw drive motor is connected to the left end of the screw, the screw drive motor is suspended on the lower bottom surface of the left longitudinal beam, a screw nut is connected to the screw, and a screw nut is fixed on the lower bottom surface of the screw nut. A swing arm moving frame is connected to the top; an inverted L-shaped suspension arm is fixedly connected to the middle of the right vertical surface of the right longitudinal beam, and a conical track plate extending horizontally to the left is connected to the lower end of the inverted L-shaped suspension arm; a front swing arm hinge seat and a rear swing arm hinge seat are respectively arranged on the lower bottom surface of the swing arm moving frame, a front swing arm is hinged on the front swing arm hinge seat, and a rear swing arm is hinged on the rear swing arm hinge seat, and a torsion spring is arranged between the front swing arm and the front swing arm hinge seat A torsion spring is arranged between the rear swing arm and the rear swing arm hinge seat, a front swing arm opening and closing roller is arranged on the rear side vertical surface of the front swing arm, the front swing arm opening and closing roller is movably matched with the front conical surface of the conical track plate, a rear swing arm opening and closing roller is arranged on the front side vertical surface of the rear swing arm, the rear swing arm opening and closing roller is movably matched with the rear conical surface of the conical track plate; the tire conveying hanger clamping tire method comprises the following steps: The first step is to start the lead screw drive motor. Under the rotation of the lead screw, the lead screw nut moves to the right, driving the swing arm moving frame to move to the right. In this process, the front swing arm opening and closing roller and the front conical surface of the conical track plate are movably matched together, and the rear swing arm opening and closing roller and the rear conical surface of the conical track plate are movably matched together. As the two swing arm opening and closing rollers move from the tip to the tail of the conical track plate, the front swing arm is pushed forward by the front swing arm opening and closing roller to overcome the torsion force of the torsion spring and swings forward. Under the backward push of the rear swing arm opening and closing roller, the rear swing arm overcomes the torsion force of the torsion spring and swings backward. Until the swing arm moving frame moves to the right end of the lead screw, the lead screw drive motor stops rotating, and the front swing arm and the rear swing arm are in an eight-shaped open state. The second step is that the tire transfer mechanism on the automatic assembly line transfers the tire from the two swing arms in the open state of the figure eight and hangs it on the horizontal cantilever beam; The third step is to start the lead screw drive motor again to make it rotate in the opposite direction, and the lead screw nut moves to the left, driving the swing arm moving frame to move to the left as well. As the opening and closing rollers of the two swing arms move from the tail to the tip of the conical track plate, the front swing arm swings backward under the torsion force of the torsion spring, and the rear swing arm swings forward under the torsion force of the torsion spring, until the front swing arm and the rear swing arm are in a vertical state and abut against the right side elevation of the tire, thereby realizing the clamping of the tire by the vertical ladder-like hanger and the two swing arms in a vertical state; Step 4: The whole field-shaped frame is moved horizontally to other workstations to realize the aerial transfer of tires.

[0008] The present invention is aimed at the current situation that the existing tire conveying hoist can only convey tires of the same or similar specifications and the tires cannot be effectively fixed during transportation, and the hoist is creatively improved; during use, it can not only achieve the automatic linkage effect of clamping and opening and clamp and fix tires of different specifications, but also make the tires vertically hoisted for easy grasping by other devices, and has high applicability for mixed-line production and transportation of tires. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention when the two swing arms are in an open state; Figure 2 It is a schematic diagram of the structure of the present invention when the two swing arms are in a closed state; Figure 3 It is a structural schematic diagram of two parallel guide rails 8 and a vertical ladder-shaped hanger 5 on a field-shaped frame 1 of the present invention; Figure 4 yes Figure 3 Schematic diagram of the structure in the main viewing direction; Figure 5 It is a schematic structural diagram of the swing arm moving frame 16 and the two swing arms thereon; Figure 6 yes Figure 5 Schematic diagram of the structure in the right viewing direction; Figure 7 It is a schematic structural diagram of the present invention in the working state of clamping tire 31. DETAILED DESCRIPTION

[0010] The present invention is described in detail below in conjunction with the accompanying drawings: A tire conveying hanger for an automatic assembly line comprises a field-shaped frame 1 and a tire 31 suspended in the air and movable horizontally, wherein a left longitudinal beam 4, a middle longitudinal beam 2 and a right longitudinal beam 3 are respectively arranged on the field-shaped frame 1; a vertical ladder-shaped hanger 5 is fixedly connected to the lower bottom surface of the middle longitudinal beam 2, and a horizontal cantilever beam 7 supporting the tire is fixedly connected to the lower end of the vertical ladder-shaped hanger 5; two parallel guide rails 8 in the left and right directions are arranged between the lower bottom surface of the middle longitudinal beam 2 and the lower bottom surface of the right longitudinal beam 3, a right screw support seat 9 and a left screw support seat 10 are respectively arranged on the lower bottom surface of the field-shaped frame 1 in the two parallel guide rails 8, a screw 11 is arranged between the right screw support seat 9 and the left screw support seat 10, a screw drive motor 12 is connected to the left end of the screw 11, and the screw drive motor 12 is suspended on the lower bottom surface of the left longitudinal beam 4. A lead screw nut 15 is connected to the lead screw 11, and a swing arm moving frame 16 is connected to the lower bottom surface of the lead screw nut 15. A rear guide rail slider connecting seat 19, a front guide rail slider connecting seat 20 and a lead screw nut connecting seat 21 are respectively arranged on the top surface of the swing arm moving frame 16. A rear guide rail slider 17 is connected to the rear guide rail slider connecting seat 19, and the rear guide rail slider 17 is movably connected to the rear guide rail of the two parallel guide rails 8. A front guide rail slider 18 is connected to the front guide rail slider connecting seat 20, and the front guide rail slider 18 is connected to the front guide rail of the two parallel guide rails 8. The lead screw nut connecting seat 21 is fixedly connected to the lead screw nut 15; a pair of swing arms that can be opened and closed are suspended on the swing arm moving frame 16; a tire 31 is hung on the horizontal cantilever beam 7, and the tire 31 is arranged between a pair of swing arms and the vertical ladder-shaped hanger 5.

[0011] An inverted L-shaped suspension arm 13 is fixedly connected to the middle of the right side vertical surface of the right longitudinal beam 3, and a conical track plate 14 extending horizontally to the left is connected to the lower end of the inverted L-shaped suspension arm 13; a front swing arm hinge seat 22 and a rear swing arm hinge seat 24 are respectively arranged on the lower bottom surface of the swing arm moving frame 16, a front swing arm 23 is hinged on the front swing arm hinge seat 22, and a rear swing arm 25 is hinged on the rear swing arm hinge seat 24. The pair of swing arms is composed of the front swing arm 23 and the rear swing arm 25. A torsion spring is arranged between the swing arm 23 and the front swing arm hinge seat 22, a torsion spring is arranged between the rear swing arm 25 and the rear swing arm hinge seat 24, a front swing arm opening and closing roller 26 is arranged on the rear side vertical surface of the front swing arm 23, and the front swing arm opening and closing roller 26 is movably matched with the front conical surface of the conical track plate 14, and a rear swing arm opening and closing roller 27 is arranged on the front side vertical surface of the rear swing arm 25, and the rear swing arm opening and closing roller 27 is movably matched with the rear conical surface of the conical track plate 14.

[0012] Buffer rollers 6 are arranged at intervals on the right side facade of the vertical ladder-shaped hanger 5, a front buffer clamping plate 29 is arranged on the left side facade of the front swing arm 23, and a rear buffer clamping plate 30 is arranged on the left side facade of the rear swing arm 25; an inverted T-shaped support block 28 is fixedly arranged on the lower bottom surface of the swing arm moving frame 16 between the front swing arm hinge seat 22 and the rear swing arm hinge seat 24 when the two swing arms are closed.

[0013] A method for clamping a tire by a tire conveying hanger on an automatic assembly line is realized by the tire conveying hanger. The tire conveying hanger comprises a field-shaped frame 1 and a tire 31 suspended in the air and capable of horizontal movement. The field-shaped frame 1 is provided with a left longitudinal beam 4, a middle longitudinal beam 2 and a right longitudinal beam 3 respectively; a vertical ladder-shaped hanger 5 is fixedly connected to the lower bottom surface of the middle longitudinal beam 2, and a horizontal cantilever beam 7 supporting the tire is fixedly connected to the lower end of the vertical ladder-shaped hanger 5; a horizontal cantilever beam 7 supporting the tire is fixedly connected to the lower bottom surface of the middle longitudinal beam 2 and the right longitudinal beam 3; a vertical ladder-shaped hanger 5 ... vertical ladder-shaped hanger 5 is fixedly connected to the lower bottom surface of the middle longitudinal beam 2 and the right longitudinal beam 3; a vertical ladder-shaped hanger 5 is fixedly connected to the lower bottom surface of the middle longitudinal beam 2 and the right longitudinal beam 3; a vertical ladder-shaped hanger 5 is fixedly connected to the lower end of the vertical ladder-shaped hanger 5; a vertical ladder-shaped hanger 5 is fixedly connected to the lower bottom surface of the middle longitudinal beam 2 and the right longitudinal beam 3; a vertical ladder-shaped hanger 5 is fixedly connected to the lower bottom surface of the middle longitudinal beam 2 and the right longitudinal beam 3; a vertical ladder-shaped hanger 5 is fixed Two parallel guide rails 8 in the left and right directions are arranged between the lower bottom surfaces of the beams 3, and a right screw support seat 9 and a left screw support seat 10 are respectively arranged on the lower bottom surfaces of the field-shaped frame 1 in the two parallel guide rails 8. A screw 11 is arranged between the right screw support seat 9 and the left screw support seat 10. A screw drive motor 12 is connected to the left end of the screw 11. The screw drive motor 12 is suspended on the lower bottom surface of the left longitudinal beam 4. A screw nut 15 is connected to the screw 11, and a swing screw is connected to the lower bottom surface of the screw nut 15. The arm moving frame 16 is provided with an inverted L-shaped suspension arm 13 fixedly connected to the middle of the right side vertical surface of the right longitudinal beam 3, and a conical track plate 14 extending horizontally to the left is connected to the lower end of the inverted L-shaped suspension arm 13; a front swing arm hinge seat 22 and a rear swing arm hinge seat 24 are respectively provided on the lower bottom surface of the swing arm moving frame 16, a front swing arm 23 is hinged on the front swing arm hinge seat 22, a rear swing arm 25 is hinged on the rear swing arm hinge seat 24, and a torsion bar is provided between the front swing arm 23 and the front swing arm hinge seat 22. A torsion spring is arranged between the rear swing arm 25 and the rear swing arm hinge seat 24, a front swing arm opening and closing roller 26 is arranged on the rear side vertical surface of the front swing arm 23, and the front swing arm opening and closing roller 26 is movably matched with the front conical surface of the conical track plate 14, and a rear swing arm opening and closing roller 27 is arranged on the front side vertical surface of the rear swing arm 25, and the rear swing arm opening and closing roller 27 is movably matched with the rear conical surface of the conical track plate 14; the tire conveying hanger clamping tire method comprises the following steps: The first step is to start the screw drive motor 12. Under the rotation of the screw 11, the screw nut 15 moves to the right, driving the swing arm moving frame 16 to move to the right. In this process, the front swing arm opening and closing roller 26 is movably matched with the front conical surface of the conical track plate 14, and the rear swing arm opening and closing roller 27 is movably matched with the rear conical surface of the conical track plate 14. As the two swing arm opening and closing rollers move from the tip to the tail of the conical track plate 14, the front swing arm 23 is pushed forward by the front swing arm opening and closing roller 26 to overcome the torsion force of the torsion spring and swing forward, and the rear swing arm 25 is pushed backward by the rear swing arm opening and closing roller 27 to overcome the torsion force of the torsion spring and swing backward, until the swing arm moving frame 16 moves to the right end of the screw 11, the screw drive motor 12 stops rotating, and the front swing arm 23 and the rear swing arm 25 are in an eight-shaped open state; Step 2: The tire transfer mechanism on the automatic assembly line transfers the tire 31 from the two swing arms in the open state of the figure eight and hangs it on the horizontal cantilever beam 7; The third step is to start the lead screw drive motor 12 again to make it rotate in the opposite direction, so that the lead screw nut 15 moves to the left, driving the swing arm moving frame 16 to move to the left as well. As the opening and closing rollers of the two swing arms move from the tail to the tip of the conical track plate 14, the front swing arm 23 swings backward under the torsion force of the torsion spring, and the rear swing arm 25 swings forward under the torsion force of the torsion spring until the front swing arm 23 and the rear swing arm 25 are in a vertical state and abut against the right side elevation of the tire 31, thereby realizing the clamping of the tire 31 by the vertical ladder-shaped hanger 5 and the two swing arms in the vertical state; Step 4: The whole field-shaped frame (1) is horizontally moved to other workstations to realize aerial transfer of the tire 31.

[0014] Buffer rollers 6 are arranged at intervals on the right side elevation of the vertical ladder-shaped hanger 5, a front buffer clamping plate 29 is arranged on the left side elevation of the front swing arm 23, and a rear buffer clamping plate 30 is arranged on the left side elevation of the rear swing arm 25, so as to realize flexible clamping of the tire 31; an inverted T-shaped support block 28 when the two swing arms are closed is fixedly arranged on the lower bottom surface of the swing arm moving frame 16 between the front swing arm hinge seat 22 and the rear swing arm hinge seat 24, and when the two swing arms swing back to a vertical state, the inverted T-shaped support block 28 plays a supporting role between the inner sides of the two swing arms.

[0015] The automatic opening and tire clamping and fixing device of the sling of the present invention adopts a linkage mode. The screw drive motor 12 drives the ball screw mechanism to cooperate with the slide rail slider to realize the automatic movement of the clamping structure. During the movement, the two swing arms with torsion springs move the two swing arm opening and closing rollers at the upper part from the tail to the tip of the conical track plate 14, which can be automatically separated and closed, and the tire can be taken out and blocked; the swing arm is provided with a spring buffer plate and a micro switch. When fixing tires of different specifications and widths, the swing arm moves to press the tire, and the buffer plate on the swing arm shifts and touches the micro switch to control the motor to stop and then the swing arm stops moving, and then the tires of different specifications are fixed; the horizontal cantilever beam 7 with polyurethane rubber coating passes through the center hole of the tire hub, which not only protects the center hole of the hub from damage, but also allows the tire to be vertically hung, making it convenient for other devices to grab.

Claims

1. A method for clamping a tire by a tire conveying hanger on an automatic assembly line, which is realized by the tire conveying hanger, wherein the tire conveying hanger comprises a horizontally movable field-shaped frame (1) suspended in the air and a tire (31), wherein a left longitudinal beam (4), a middle longitudinal beam (2) and a right longitudinal beam (3) are respectively arranged on the field-shaped frame (1); a vertical ladder-shaped hanger (5) is fixedly connected to the lower bottom surface of the middle longitudinal beam (2), and a horizontal cantilever beam (7) supporting the tire is fixedly connected to the lower end of the vertical ladder-shaped hanger (5); a vertical ladder-shaped hanger (5) is fixedly connected to the lower bottom surface of the middle longitudinal beam (2) and the right longitudinal beam (3) 3) Two parallel guide rails (8) are arranged between the lower bottom surfaces in the left and right directions, a right screw support seat (9) and a left screw support seat (10) are arranged on the lower bottom surfaces of the field-shaped frame (1) in the two parallel guide rails (8), a screw (11) is arranged between the right screw support seat (9) and the left screw support seat (10), a screw drive motor (12) is connected to the left end of the screw (11), the screw drive motor (12) is suspended on the lower bottom surface of the left longitudinal beam (4), a screw nut (15) is connected to the screw (11), and a screw nut (15) is arranged on the lower bottom surface of the screw nut (15). A swing arm moving frame (16) is connected; an inverted L-shaped suspension arm (13) is fixedly connected to the middle of the right side vertical surface of the right longitudinal beam (3); a conical track plate (14) extending horizontally to the left is connected to the lower end of the inverted L-shaped suspension arm (13); a front swing arm hinge seat (22) and a rear swing arm hinge seat (24) are respectively arranged on the lower bottom surface of the swing arm moving frame (16); a front swing arm (23) is hingedly connected to the front swing arm hinge seat (22); a rear swing arm (25) is hingedly connected to the rear swing arm hinge seat (24); and a front swing arm (23) and the front swing arm hinge seat (22) are hingedly connected. A torsion spring is arranged between the rear swing arm (25) and the rear swing arm hinge seat (24); a front swing arm opening and closing roller (26) is arranged on the rear side vertical surface of the front swing arm (23); the front swing arm opening and closing roller (26) and the front conical surface of the conical track plate (14) are movably matched together; a rear swing arm opening and closing roller (27) is arranged on the front side vertical surface of the rear swing arm (25); the rear swing arm opening and closing roller (27) and the rear conical surface of the conical track plate (14) are movably matched together; the tire conveying hanger clamping method comprises the following steps: The first step is to start the screw drive motor (12). Under the rotation of the screw (11), the screw nut (15) moves to the right, driving the swing arm moving frame (16) to move to the right. During this process, the front swing arm opening and closing roller (26) and the front conical surface of the conical track plate (14) are movably matched together, and the rear swing arm opening and closing roller (27) and the rear conical surface of the conical track plate (14) are movably matched together. As the two swing arm opening and closing rollers move from the conical track plate (14) The tip of the front swing arm (23) moves toward the tail, and the front swing arm (23) is pushed forward by the front swing arm opening and closing roller (26) to overcome the torsion force of the torsion spring and swings forward, and the rear swing arm (25) is pushed backward by the rear swing arm opening and closing roller (27) to overcome the torsion force of the torsion spring and swing backward, until the swing arm moving frame (16) moves to the right end of the lead screw (11), the lead screw drive motor (12) stops rotating, and the front swing arm (23) and the rear swing arm (25) are in an eight-shaped open state; In the second step, the tire transfer mechanism on the automatic assembly line transfers the tire (31) from the two swing arms in the open state of the figure eight and hangs it on the horizontal cantilever beam (7); Step 3: Start the lead screw drive motor (12) again to make it rotate in the opposite direction, so that the lead screw nut (15) moves to the left, driving the swing arm moving frame (16) to move to the left as well. As the two swing arm opening and closing rollers move from the tail end to the tip end of the conical track plate (14), the front swing arm (23) swings backward under the torsion force of the torsion spring, and the rear swing arm (25) swings forward under the torsion force of the torsion spring until the front swing arm (23) and the rear swing arm (25) are in a vertical state and abut against the right side elevation of the tire (31), thereby achieving the clamping of the tire (31) by the vertical ladder-shaped hanger (5) and the two swing arms in a vertical state; Step 4: The whole field-shaped frame (1) is horizontally moved to other workstations to realize aerial transfer of the tire (31).

2. The method for clamping a tire with a tire conveying hanger on an automatic assembly line according to claim 1, characterized in that: Buffer rollers (6) are arranged at intervals on the right side elevation of the vertical ladder-shaped hanger (5), a front buffer clamping plate (29) is arranged on the left side elevation of the front swing arm (23), and a rear buffer clamping plate (30) is arranged on the left side elevation of the rear swing arm (25), so as to realize flexible clamping of the tire (31); an inverted T-shaped support block (28) is fixedly arranged on the lower bottom surface of the swing arm moving frame (16) between the front swing arm hinge seat (22) and the rear swing arm hinge seat (24) when the two swing arms are closed, and when the two swing arms are swung back to a vertical state, the inverted T-shaped support block (28) plays a supporting role between the inner sides of the two swing arms.

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