CN218320189U

CN218320189U - Automatic transfer device for car door lifting appliance

Info

Publication number: CN218320189U
Application number: CN202222793283.2U
Authority: CN
Inventors: 尹振麒; 陈晓亮; 王建旭; 翟岳
Original assignee: GAC Toyota Motor Co Ltd
Current assignee: GAC Toyota Motor Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-17
Anticipated expiration: 2032-10-21

Abstract

The utility model provides a door hoist automatic transfer device, lock piece and door plant have on the door hoist, door hoist automatic transfer device includes lift conveying track, opening and shutting mechanism, workstation, locking mechanism and release mechanism, and the door hoist can move to set up in lift conveying track; the opening and closing mechanism is arranged at the bottom of the lifting conveying track and is used for driving the door plate to rotate; the workbench is arranged on one side of the lifting conveying track and is positioned at one end close to the locking piece; the locking mechanism is movably arranged on the workbench and moves to abut against the locking piece so as to lock the locking piece; the unlocking mechanism is movably arranged on the workbench, and the unlocking mechanism moves to abut against the locking piece to unlock the locking piece. The utility model discloses technical scheme all adopts automatic mode to accomplish, improves production efficiency, and the liberation is artifical, reduces operator's work load.

Description

Automatic transfer device for vehicle door lifting appliance

Technical Field

The utility model relates to a vehicle manufacturing technical field, in particular to automatic transfer device of door hoist.

Background

With the gradual increase of labor cost, the labor cost of each manufacturer is reduced and the schedule is increased, and an intelligent cooperative robot and an automatic device are adopted to replace manual work to complete a part of operation, so that the method becomes a mode for reducing the labor cost.

In the prior art, the car door needs to be carried or transferred to other procedures by using a lifting appliance, however, at present, the lifting appliance is usually manually opened or closed, the car door is placed in the lifting appliance, and the waste of the operation of getting in and out the lifting appliance more than twice is increased; the lifting appliance needs manual operation when being opened or closed, the manual opening and closing force is between 20N and 70N, the operation load of an operator is high, the automation degree is low, and the operation efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic transfer device of door hoist, the mode degree of automation who aims at solving artifical manually operation hoist among the prior art is low, and the operating efficiency is low, to the high technical problem of operator work load.

In order to realize the above purpose, the utility model provides a door hoist automatic transfer device has lock piece and door plant on the door hoist, door hoist automatic transfer device includes:

the lifting conveying track is movably arranged in the vehicle door lifting tool;

the opening and closing mechanism is arranged at the bottom of the lifting conveying track and is used for driving the door plate to rotate;

the workbench is arranged on one side of the lifting conveying track and is positioned at one end close to the locking piece;

the locking mechanism is movably arranged on the workbench and moves to abut against the locking piece so as to lock the locking piece;

the unlocking mechanism is movably arranged on the workbench and moves to the position where the locking piece is abutted to unlock the locking piece.

Optionally, the unlocking mechanism comprises:

the base is arranged on one side of the workbench;

the connecting assembly is rotatably arranged on the base around a rotating shaft of the connecting assembly;

the driving component is arranged on the base, and the driving end of the driving component is connected with one end of the connecting component;

the poke rod is arranged at the other end of the connecting assembly, the driving assembly drives the connecting assembly to rotate so as to drive the poke rod to rotate to the butt of the locking piece.

Optionally, the connection assembly comprises:

the first end of the connecting rod is connected with the driving assembly, and the second end of the connecting rod is connected with the poke rod;

one end of the connecting sheet is rotatably connected with the base, and the other end of the connecting sheet is rotatably connected between the first end and the second end.

Optionally, the drive assembly comprises:

the fixing plate is arranged on the base;

the driver is arranged on the fixing plate, the driving end of the driver is connected with the connecting component, and the driving direction of the driver is perpendicular to the rotating shaft of the connecting component.

Optionally, the opening and closing mechanism comprises:

the rotating assembly is arranged at the bottom of the lifting conveying track;

the door panel opening and closing mechanism comprises a rotating assembly, a clamping assembly and a rotating assembly, wherein the rotating assembly is arranged on the rotating assembly in a lifting mode, the clamping assembly ascends to clamp the door panel, descends to loosen the door panel, and is used for driving the clamping mechanism to rotate to open or close the door panel.

Optionally, the clamping assembly comprises:

the lifting driving piece is arranged on the rotating assembly;

a clamp disposed on the lift drive.

Optionally, the clamping member includes a positioning pin and two connecting plates, the two connecting plates are oppositely disposed on the lifting driving member, and the positioning pin is correspondingly disposed on each connecting plate.

Optionally, the rotating assembly comprises:

a driving cylinder;

the rotating gear is arranged at the bottom of the clamping assembly;

the rack is connected with the driving end of the driving air cylinder, the rack is meshed with the rotating gear, and the driving air cylinder drives the rack to move so as to drive the rotating gear to rotate.

Optionally, the locking mechanism comprises:

the mechanical arm is arranged on the workbench;

the mounting plate is arranged on the mechanical arm;

camera and abaculus, the camera with the abaculus sets up relatively the both ends of mounting panel, the shooting direction orientation of camera the abaculus, the arm removes in order to drive the abaculus remove to with the locking piece butt.

Optionally, the abaculus includes connecting portion and with the guide part that connecting portion are connected, connecting portion with the mounting panel is connected, be equipped with spacing groove and guiding wall on the guide part, the opening orientation of spacing groove deviates from connecting portion one side, the guiding wall one end with the edge connection of spacing groove, the other end to connecting portion extend.

The utility model discloses technical scheme behind the volume lock blocking piece unblock of release mechanism with the door hoist, through the mechanism that opens and shuts opens the door plant, the door hoist reprint finish after again by locking mechanism locks the lock blocking piece, passes through at last the lift transfer orbit is transported away. The whole process is completed in an automatic mode, the production efficiency is improved, the manpower is liberated, and the labor load of operators is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a front view of the automatic transfer device for the car door sling according to the present invention;

fig. 2 is a side view of the automatic transfer device for the vehicle door sling according to the present invention;

FIG. 3 is a schematic structural view of a locking mechanism in the automatic transfer device for the vehicle door sling according to the present invention;

FIG. 4 is a schematic structural view of an insert block in the automatic transfer device for the vehicle door sling according to the present invention;

FIG. 5 is a schematic structural view of an unlocking mechanism in the automatic transfer device for the vehicle door sling according to the present invention;

fig. 6 is a front view of the opening and closing mechanism in the automatic transfer device for the vehicle door sling according to the present invention;

fig. 7 is a top view of the opening and closing mechanism in the automatic transfer device for vehicle door spreaders of the present invention;

fig. 8 is the utility model discloses door hoist's among the automatic transfer device of door hoist structure schematic diagram.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name (R)
				10	Locking mechanism	11	Camera with camera module
12	Mechanical arm	13	Mounting plate
				14	Insert block	141	Connecting part
142	Guide part	143	Limiting groove
				144	Guide wall	20	Unlocking mechanism
21	Base seat	22	Connecting assembly
				221	Connecting rod	222	Connecting sheet
23	Poke rod	24	Drive assembly
				241	Fixing plate	242	Driver
30	Opening and closing mechanism	31	Rotating assembly
				311	Driving cylinder	312	Rotating gear
313	Rack bar	32	Clamping assembly
				321	Lifting driving piece	322	Connecting plate
323	Locating pin	40	Working table
				51	Clamping plate	52	Door panel
53	Pin shaft	54	Locking rod

The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The utility model provides a door hoist automatic transfer device, the door hoist is provided with a locking piece and a door plate 52, the door hoist automatic transfer device comprises a lifting conveying track, an opening and closing mechanism 30, a workbench 40, a locking mechanism 10 and an unlocking mechanism 20, and the door hoist can be movably arranged in the lifting conveying track; the opening and closing mechanism 30 is arranged at the bottom of the lifting conveying track, and the opening and closing mechanism 30 is used for driving the door panel 52 to rotate; the workbench 40 is arranged on one side of the lifting conveying track, and the workbench 40 is positioned at one end close to the locking piece; the locking mechanism 10 is movably arranged on the workbench 40, and the locking mechanism 10 is moved to abut against the locking piece to lock the locking piece; the unlocking mechanism 20 is movably arranged on the workbench 40, and the unlocking mechanism 20 moves to abut against the locking piece to unlock the locking piece.

In the production process of the vehicle, the vehicle door needs to be detached firstly and then sent to a vehicle door assembly line, components on the vehicle door need to be assembled specially, and the vehicle door is assembled back to the vehicle after being integrally assembled. It is therefore necessary to transfer the detached door to the door assembly line by means of a door hanger. The car door lifting appliance realizes the transfer between different production lines through the lifting conveying track.

The structure of the vehicle door hanger is shown in fig. 8, the vehicle door hanger is divided into two layers, namely a clamping plate 51 and a door plate 52, the clamping plate 51 is fixed, the door plate 52 rotates relative to the clamping plate 51, so that the vehicle door hanger is opened and closed, and the detached vehicle door is clamped through the clamping plate 51 and the door plate 52 when the vehicle door hanger is closed.

The locking piece is including being located round pin axle 53 on splint 51 to and the locking pole 54 on the door plant 52, and the middle part of locking pole 54 is articulated with door plant 52, and locking pole 54 has the groove-shaped structure with round pin axle 53 joint on the one end of round pin axle 53, and the other end then has the rod-shaped structure be used for with release mechanism 20 or locking mechanism 10 butt.

The concrete operation process of door hoist automatic transfer device does:

firstly, the lifting conveying track transports the car door lifting appliance to a feeding station, the unlocking mechanism 20 is arranged on one side close to the locking piece, the unlocking mechanism 20 moves to be abutted to the locking piece, the locking rod 54 is poked to be down, the groove-shaped structure is tilted and separated from the pin shaft 53, the unlocking operation of the locking piece is completed, the door plate 52 is separated from the clamping plate 51, and the car door lifting appliance is opened.

Then, the opening and closing mechanism 30 can be arranged at the bottom of the lifting conveying track in a lifting mode, and after the locking piece is unlocked, the opening and closing mechanism 30 is lifted and clamps the door panel 52.

Then, the opening and closing mechanism 30 rotates, and when the door panel 52 is opened, the opening and closing mechanism 30 drives the door panel 52 to rotate on the side far away from the clamping plate 51; after the door panel 52 is opened, the operator puts the vehicle door into the vehicle door hanger; after the vehicle door is placed in the vehicle door hanger, the door panel 52 is closed, and the opening and closing mechanism 30 drives the door panel 52 to rotate towards one side of the clamping plate 51, so that the vehicle door is clamped by the door panel 52 and the clamping plate 51.

Finally, locking mechanism 10 moves to and the lock piece butt at the in-process that door plant 52 closed to play the guide effect to the trough-shaped structure, guide and supplementary trough-shaped structure joint to round pin 53 on, thereby guarantee the stability of being connected between door plant 52 and splint 51. Preventing the door spreader from being opened while moving on the lifting transfer rail.

The utility model discloses technical scheme behind the volume lock piece unblock of release mechanism 20 with the door hoist, through mechanism 30 opens door plant 52 that opens and shuts, the door hoist reprint finish after again by locking mechanism 10 locks the lock piece, passes through at last lift transfer orbit transports away. The whole process is completed in an automatic mode, the production efficiency is improved, the manpower is liberated, and the labor load of operators is reduced.

Specifically, referring to fig. 5, the unlocking mechanism 20 includes a base 21, a connecting assembly 22, a driving assembly 24 and a poke rod 23, wherein the base 21 is disposed on one side of the worktable 40; the connecting assembly 22 is rotatably arranged on the base 21 around a rotating shaft thereof; the driving component 24 is arranged on the base 21, and a driving end of the driving component 24 is connected with one end of the connecting component 22; the poke rod 23 is arranged at the other end of the connecting assembly 22, the driving assembly 24 drives the connecting assembly 22 to rotate, so that the poke rod 23 is driven to rotate to abut against the locking piece.

The base 21 is disposed on a side close to the locking member, and the poke rod 23 is disposed at an end of the connecting assembly 22 facing the locking rod 54 so as to abut against the locking member.

When the driving assembly 24 drives the connecting assembly 22 to rotate, the poke rod 23 is driven to be pushed down, so that the locking rod 54 is driven to tilt, and the groove-shaped structure is separated from the pin shaft 53. The clamping plate 51 is unlocked from the door plate 52, and the opening of the door hanger is realized.

Specifically, the connecting assembly 22 includes a connecting rod 221 and a connecting piece 222, a first end of the connecting rod 221 is connected to the driving assembly 24, and a second end of the connecting rod 221 is connected to the poke rod 23; the connecting piece 222 has one end rotatably connected to the base 21 and the other end rotatably connected between the first end and the second end.

In this embodiment, in order to save the occupied space, the connecting rod 221 is horizontally disposed, the connecting piece 222 is located at the middle position of the connecting rod 221, and the connecting rod 221 is fixed on the base 21 through the connecting piece 222. The connecting rod 221 points to the locking member, the first end is an end facing the locking member, and the second end is an end facing away from the locking member.

The driving direction of the driving assembly 24 is set to be a vertical direction, so when the second end is driven to move upwards, the corresponding first end moves downwards to drive the poke rod 23 to move downwards, the rod-shaped structure of the locking rod 54 is knocked down, the groove-shaped structure correspondingly tilts and breaks away from the pin shaft 53, and the opening of the car door lifting appliance is realized. Conversely, closing of the door spreader is achieved when the second end is driven downward. Or close the door spreader by other means.

It should be noted that one end of the connecting piece 222 is rotatably connected to the connecting rod 221, and the other end is rotatably connected to the base 21. All adopt the mode of rotating the connection, increase through both ends the rotatable scope of connecting rod 221 improves door hoist automatic transfer device's compatibility can adapt to the operational environment of more differences.

Specifically, the driving assembly 24 includes a fixing plate 241 and a driver 242, and the fixing plate 241 is disposed on the base 21; the driver 242 is disposed on the fixing plate 241, a driving end of the driver 242 is connected to the connecting assembly 22, and a driving direction of the driver 242 is perpendicular to a rotation axis of the connecting assembly 22.

The driver 242 may employ a driving cylinder 311. The fixing plate 241 may be fixed to the base 21 by welding or bolting.

The fixing plate 241 extends out of the base 21 to provide an installation space for the driver 242, and the driving direction of the driver 242 is set along the vertical direction, so as to drive the second end to rotate up and down. In addition, the driving direction of the driver 242 may also be set along the front-back direction, so as to drive the second end to rotate left and right.

The driver 242 can be adjusted according to different installation environments, and is detachably connected to the base 21 and fixed to different heights of the base 21 by screws to adapt to different operation environments.

Specifically, referring to fig. 6 to 7, the opening and closing mechanism 30 includes a rotating component 31 and a clamping component 32, and the rotating component 31 is disposed at the bottom of the lifting conveying track; the clamping assembly 32 is arranged on the rotating assembly 31 in a lifting manner, the clamping assembly 32 moves in a lifting manner to clamp the door panel 52, and the rotating assembly 31 is used for driving the clamping mechanism to rotate so as to open/close the door panel 52.

In order to reduce the floor area of the equipment, the opening and closing mechanism 30 is arranged below the vehicle door hanger, so that the clamping assembly 32 can be clamped and separated from the door panel 52 only by lifting. The rotating assembly 31 only needs to drive the clamping assembly 32 to rotate, so that the door panel 52 can be opened and closed.

Specifically, the clamping member includes a positioning pin 323 and two connecting plates 322, the two connecting plates 322 are disposed on the lifting driving member 321 oppositely, and each connecting plate 322 is correspondingly provided with the positioning pin 323.

The door panel 52 has a certain thickness, and in this embodiment, the gap between the two connecting plates 322 can be adjusted in advance, so that the width of the gap is adapted to the thickness of the door panel 52.

When the lifting driving member 321 drives the clamping member to ascend, the door panel 52 is just clamped in the gap and does not need to be connected through other parts.

In order to ensure that the door panel 52 can be accurately clamped, the connecting plate 322 and the positioning pin 323 should be symmetrically arranged, and the door panel 52 is clamped in a gap of the positioning pin 323, that is, two sides of the door panel 52 are clamped by the two positioning pins 323.

In order to further improve the stability of this embodiment, the number of the positioning pins 323 may be multiple, and the positioning pins 323 are sequentially arranged on the connecting plate 322 at intervals. The line between each corresponding two positioning pins 323 is perpendicular to the door panel 52.

The rotating assembly 31 comprises a driving cylinder 311, a rotating gear 312 and a rack 313, wherein the rotating gear 312 is arranged at the bottom of the clamping assembly 32; the rack 313 is connected with the driving end of the driving cylinder 311, the rack 313 is meshed with the rotating gear 312, and the driving cylinder 311 drives the rack 313 to move so as to drive the rotating gear 312 to rotate.

The driving cylinder 311 is horizontally arranged to drive the rack 313 to stretch, the rack 313 is meshed with the rotating gear 312, and when the rack 313 stretches, the rotating gear 312 is driven to rotate, so that the support is driven to rotate.

After the clamping piece clamps the door panel 52, the driving cylinder 311 drives the rack 313 to extend and retract, so that the door panel 52 is clamped and rotated. The door 52 is opened when it is rotated outward, and closed when it is rotated inward.

Specifically, referring to fig. 1 to 4, the locking mechanism 10 includes a mechanical arm 12, an installation plate 13, a camera 11 and an insert block 14, wherein the mechanical arm 12 is disposed on the worktable 40; the mounting plate 13 is arranged on the mechanical arm 12; the camera 11 with the abaculus 14 sets up relatively the both ends of mounting panel 13, the shooting direction of camera 11 orientation the abaculus 14, arm 12 removes in order to drive the abaculus 14 remove to with the locking piece butt.

The present embodiment further includes a controller, and the robot arm 12 may be a six-axis robot arm 12 or another type of robot arm 12, etc., so as to move the camera 11 on the three-dimensional coordinate system. Improve the convenient degree that 11 removal of camera can be followed more different angles and shot, further improves the utility model discloses a detection accuracy.

The camera 11 is configured to capture an image of the locking member and send image information to the controller. The controller may then determine the position of the locking member, specifically, the position of the pin 53, according to the image information.

The controller controls the mechanical arm 12 to move the insert 14 to the position of the pin shaft 53, and places the insert 14 at the position of the pin shaft 53 and is clamped with the pin shaft 53. The controller processes the image information and controls the corresponding operation of the slug 14 component, which are all the prior art, and are not described herein again.

Specifically, the insert 14 includes a connecting portion 141 and a guiding portion 142 connected to the connecting portion 141, the connecting portion 141 is connected to the mounting plate 13, the guiding portion 142 is provided with a limiting groove 143 and a guiding wall 144, an opening of the limiting groove 143 faces away from one side of the connecting portion 141, one end of the guiding wall 144 is connected to an edge of the limiting groove 143, and the other end of the guiding wall extends to the connecting portion 141.

The insert 14 serves to guide the locking rod 54 through the insert 14 when the door panel 52 is closed.

The shape of the limiting groove 143 is adapted to the shape of the pin 53, and the pin 53 is engaged in the limiting groove 143. After the door 52 is closed, the groove-shaped structure is lifted along the guiding wall 144 and finally reaches the position of the limiting groove 143. The door panel 52 is closed continuously, and the groove-shaped structure crosses the limiting groove 143 and finally falls down under the influence of gravity to complete clamping. The slug 14 assembly then removes the slug 14.

It should be noted that the side of the locking rod 54 close to the groove-shaped structure has an escape protrusion, which is shaped to fit the insert 14, so as to prevent the groove-shaped structure from being blocked when falling over the limiting groove 143. Therefore, the door plate 52 is clamped, the stability of the clamped door plate 52 is facilitated, and the integral automation degree is improved.

In addition, the camera 11 is further configured to capture image information after the groove-shaped structure and the pin shaft 53 are completely connected in a clamped manner, and send the image information to the controller. The controller is also used for determining whether the door panel 52 is closed in place according to the image information, so that the reliability is ensured.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the conception of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The utility model provides a door hoist automatic transfer device, has lock piece and door plant on the door hoist, its characterized in that, door hoist automatic transfer device includes:

2. The automatic transfer device for vehicle door spreaders according to claim 1, wherein said unlocking mechanism comprises:

the base is arranged on one side of the workbench;

the poke rod is arranged at the other end of the connecting assembly, the driving assembly drives the connecting assembly to rotate so as to drive the poke rod to rotate to abut against the locking piece.

3. The automatic transfer device for vehicle door spreaders as claimed in claim 2, wherein said connection assembly comprises:

the first end of the connecting rod is connected with the driving component, and the second end of the connecting rod is connected with the poke rod;

and one end of the connecting sheet is rotatably connected with the base, and the other end of the connecting sheet is rotatably connected between the first end and the second end.

4. The automatic transfer device for vehicle door spreaders according to claim 2, wherein said drive assembly comprises:

the fixing plate is arranged on the base;

the driver is arranged on the fixing plate, the driving end of the driver is connected with the connecting assembly, and the driving direction of the driver is perpendicular to the rotating shaft of the connecting assembly.

5. The automatic transfer device for vehicle door spreaders according to claim 1, wherein said opening and closing mechanism comprises:

the rotating assembly is arranged at the bottom of the lifting conveying track;

the door panel opening and closing mechanism comprises a rotating assembly, a clamping assembly and a rotating assembly, wherein the rotating assembly is arranged on the rotating assembly in a lifting mode, the clamping assembly ascends to clamp the door panel, descends to loosen the door panel, and is used for driving the clamping assembly to rotate to open or close the door panel.

6. The automatic transfer device for vehicle door spreaders according to claim 5, wherein said clamping assembly comprises:

the lifting driving piece is arranged on the rotating assembly;

a clamp disposed on the lift drive.

7. The automatic transfer device for the vehicle door sling according to claim 6, wherein the clamping member comprises a positioning pin and two connecting plates, the two connecting plates are oppositely arranged on the lifting driving member, and the positioning pin is correspondingly arranged on each connecting plate.

8. The automatic transfer device for vehicle door spreaders according to claim 5, wherein said rotating assembly comprises:

a driving cylinder;

the rotating gear is arranged at the bottom of the clamping assembly;

the rack is connected with the driving end of the driving cylinder, the rack is meshed with the rotating gear, and the driving cylinder drives the rack to move so as to drive the rotating gear to rotate.

9. The automatic transfer device for vehicle door spreaders according to any one of claims 1 to 8, wherein said locking mechanism comprises:

the mechanical arm is arranged on the workbench;

the mounting plate is arranged on the mechanical arm;

10. The automatic transfer device for the vehicle door lifting appliance according to claim 9, wherein the insert comprises a connecting portion and a guiding portion connected with the connecting portion, the connecting portion is connected with the mounting plate, the guiding portion is provided with a limiting groove and a guiding wall, an opening of the limiting groove faces away from one side of the connecting portion, one end of the guiding wall is connected with an edge of the limiting groove, and the other end of the guiding wall extends towards the connecting portion.