CN220299384U - Transfer trolley and automobile machining clamp carrying and storing system - Google Patents

Abstract

The utility model provides a transfer trolley and an automobile machining clamp carrying and storing system, relates to the technical field of carrying equipment, and solves the technical problem that an automobile machining clamp is easy to damage in the transfer process of the automobile machining clamp through a transport trolley; the transfer trolley comprises a trolley body, a moving frame, a positioning mechanism and a clamping mechanism, wherein the positioning mechanism comprises a positioning part which is movably arranged on the trolley body, and the positioning part can be inserted into a workpiece to be transferred when moving, so that the workpiece to be transferred is positioned on the trolley body; the clamping mechanism comprises clamping parts which are positioned on at least two sides of the vehicle body and are movably arranged on the vehicle body, so that a workpiece to be transported is clamped and fixed on the vehicle body; positioning mechanism and fixture mutually support, can firmly fix the work piece of waiting to transport on the automobile body, transport the platform truck in transportation process, can prevent that car processing anchor clamps from waiting to transport the work piece and rocking on the automobile body, prevent that car processing anchor clamps from waiting to transport the work piece and take place to damage in transportation process of transport vehicle.

Description

Transfer trolley and automobile machining clamp carrying and storing system

Technical Field

The utility model relates to the technical field of conveying equipment, in particular to a transfer trolley and an automobile machining clamp conveying and storing system.

Background

The auxiliary air bag weakening line seamless processing clamp of the automobile instrument desk is stored on a goods shelf, and the goods shelf is placed in a storehouse. The seamless processing clamp for the auxiliary air bag weakening line of the automobile instrument desk often needs to be taken out of a goods shelf, moved away from a storehouse or stored in the goods shelf. In the prior art, when a clamp is seamlessly processed on a weakening line of a secondary airbag of an automobile instrument desk, a transport vehicle is required.

The applicant found that the prior art has at least the following technical problems: the seamless processing clamp of the auxiliary air bag weakening line of the automobile instrument desk is large in weight, and when the automobile processing clamp is manually conveyed to a transport vehicle in the prior art, the clamp is easy to collide, shake and jolt when transported on the transport vehicle, and the clamp is easy to collide with the transport vehicle or other equipment, so that the clamp is damaged. The prior art transport vehicle is not suitable for transporting the above mentioned clamps.

Disclosure of Invention

The utility model aims to provide a transfer trolley and an automobile machining clamp carrying and storing system, which are used for solving the technical problem that an automobile machining clamp is easy to damage in the transfer process of the transfer trolley in the prior art; the preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a transfer trolley, which comprises a trolley body, a movable frame, a positioning mechanism and a clamping mechanism, wherein:

the positioning mechanism comprises a positioning part which is movably arranged on the vehicle body, and the positioning part can be inserted into a workpiece to be transported when moving, so that the workpiece to be transported is positioned on the vehicle body;

the clamping mechanism comprises clamping parts which are positioned on at least two sides of the vehicle body and are movably arranged on the vehicle body, so that a workpiece to be transported is clamped and fixed on the vehicle body.

Preferably, the transfer trolley further comprises a moving frame and a bearing table, wherein:

the bearing table is used for supporting the workpiece to be transported, the positioning mechanism is located on the moving frame, and the moving frame is movably arranged on the vehicle body and used for pulling the positioned workpiece to be transported to the bearing table.

Preferably, the bearing tables are at least two, and are respectively positioned on two opposite sides of the vehicle body, and the bearing tables are provided with balls.

Preferably, the moving frame is provided with a cylinder, the positioning mechanism comprises a first driving device, the first driving device is fixed on the moving frame, the positioning part is fixed at the telescopic end of the first driving device, and at least part of the positioning part is positioned in the cylinder and moves reciprocally in the vertical direction along the cylinder.

Preferably, the clamping mechanism further comprises a second driving device, and the second driving device is fixed on the vehicle body;

the clamping part comprises a baffle and a roller used for contacting with a workpiece to be transported, the roller is positioned on the upper surface of the baffle, and the telescopic end of the second driving device is fixedly connected with the baffle and used for driving the baffle to move in the horizontal direction.

Preferably, the transfer trolley further comprises a third driving device and a screw rod, wherein the screw rod is rotationally connected to the trolley body, and the third driving device is in transmission connection with the screw rod and is used for driving the screw rod to rotate;

the movable frame is fixedly provided with a sliding block, the sliding block is in threaded connection with the screw rod, and the screw rod can drive the movable frame to move along the screw rod when rotating.

Preferably, the vehicle body is provided with a guide rail, the guide rail is parallel to the screw rod, the movable frame is provided with a guide block, and the guide block is in sliding connection with the guide rail.

Preferably, the transfer trolley further comprises a limiting assembly, the limiting assembly and the clamping part are located on different sides of the trolley body, the limiting assembly comprises a fourth driving device and a limiting plate, the fourth driving device is fixed on the trolley body, and the limiting plate is fixed at the telescopic end of the fourth driving device and is arranged in a movable mode in the horizontal direction and used for propping against the side portion of a workpiece to be transferred.

Preferably, the transfer trolley further comprises a rail and a trolley driving device, wherein:

the rail is fixed on the ground of a storehouse, a rack part is arranged on the rail, a gear part is fixed at the output end of the trolley driving device, and the gear part is meshed with the rack part, so that the trolley body is driven to slide along the rail.

The embodiment provides an automobile machining clamp carrying and storing system, which comprises a stacker and the transfer trolley, wherein the stacker is used for pushing a workpiece to be transferred onto the automobile body.

Compared with the prior art, the transfer trolley and the automobile machining clamp carrying and storing system have the following beneficial effects: when the car adds clamping apparatus waits to transport the work piece and is located the automobile body, the location portion can insert through the removal and wait to transport in the hole site that the work piece was reserved, will wait to transport the work piece and be located the automobile body, after the location is accomplished, the clamping part moves on the automobile body, can be fixed its centre gripping by the both sides of transporting the work piece, positioning mechanism and fixture mutually support, can firmly fix the work piece of waiting to transport on the automobile body, transport the platform truck in transportation, can prevent that car adds clamping apparatus wait to transport the work piece and rock, jolt on the automobile body, prevent that car adds clamping apparatus wait to transport the work piece and take place to damage in transportation vehicle transportation.

The automobile machining clamp carrying and storing system comprises an automobile machining clamp carrying and storing system, a stacker, a conveying trolley and a storage device, wherein the stacker can store and store the automobile machining clamp from a goods shelf, and push the automobile machining clamp to a vehicle body, and the conveying trolley drives the automobile machining clamp to leave a warehouse, so that the automobile machining clamp can be stored and stored conveniently.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a vehicle body structure of a transfer trolley;

FIG. 2 is a schematic view of a mating structure of a vehicle body and a track;

FIG. 3 is another schematic view of the mating structure of the vehicle body and the track;

fig. 4 is a schematic diagram of the structure of the car tooling jig handling access system.

In the figure 1, the vehicle body; 2. a positioning mechanism; 21. a positioning part; 22. a first driving device; 3. a clamping mechanism; 31. a baffle; 32. a roller; 33. a second driving device; 4. a moving rack; 41. a cylinder; 51. a carrying platform; 52. a ball; 61. a screw rod; 62. a slide block; 63. a third driving device; 64. a guide block; 65. a guide rail; 7. a limit component; 71. a limiting plate; 72. a fourth driving device; 8. a track; 81. a rack portion; 91. a trolley driving device; 92. a gear portion; 100. a transfer trolley; 200. a stacker; 300. and (5) a goods shelf.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

In the description of the present utility model, it should be understood that the terms "center", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The embodiment of the utility model provides a transfer trolley and an automobile machining clamp carrying and storing system, which prevent an automobile machining clamp from damaging a transfer workpiece in the transfer process of the transport trolley and facilitate storing and taking of the automobile machining clamp.

The technical solution provided by the present utility model is described in more detail below with reference to fig. 1-4.

As shown in fig. 1 to 3, the present embodiment provides a transfer trolley 100 including a vehicle body 1, a positioning mechanism 2, and a clamping mechanism 3, wherein: the positioning mechanism 2 comprises a positioning part 21, wherein the positioning part 21 is movably arranged on the vehicle body 1, and the positioning part 21 can be inserted into a workpiece to be transported when moving, so that the workpiece to be transported is positioned on the vehicle body 1; the gripping mechanism 3 includes gripping portions (the gripping portions include a baffle 31 and a roller 32) which are located on at least two sides of the vehicle body 1 and are movably provided on the vehicle body 1 so as to grip and fix the workpiece to be transferred on the vehicle body 1.

Wherein, in can inserting the hole site of waiting to transport the work piece reservation when location portion 21 removes, location portion 21 can insert wherein, and the description location portion 21 is not interference fit with the hole site of waiting to transport the work piece reservation, can not realize waiting to transport the work piece and firmly fixed with the automobile body, and it is fixed to wait to transport the work piece after further will fixing a position through fixture, simultaneously, the setting of location mechanism is convenient for fixture clamp to wait to transport the work piece.

The transfer trolley 100 of this embodiment, when the car adds clamping apparatus waits to transfer the work piece and is located automobile body 1, location portion 21 can insert through the removal and wait to transfer in the hole site that the work piece was reserved, will wait to transfer the work piece and be located automobile body 1, after the location is accomplished, the clamping part removes on automobile body 1, can be fixed its centre gripping by the both sides of transferring the work piece, positioning mechanism 2 and fixture 3 mutually support, can firmly fix the work piece of waiting to transfer on automobile body 1, transfer trolley 100 is in the transportation, can prevent that car adds clamping apparatus from waiting to transfer the work piece and rock, jolt on automobile body 1, prevent that car adds clamping apparatus wait to transfer the work piece and take place to damage in the transportation of transport vehicle.

Specifically, the positioning portion 21 is movably arranged in the vertical direction, the positioning portion 21 can be inserted into the positioning portion from the lower side of the workpiece to be transported, a positioning hole matched with the positioning portion 21 can be formed in the workpiece to be transported, the clamping portion is movably arranged in the horizontal direction, and after the workpiece to be transported is clamped and fixed by the clamping portion, the workpiece to be transported can be prevented from being displaced in the horizontal direction of the vehicle body 1.

As an alternative embodiment, referring to fig. 1-3, the transfer trolley 100 further comprises a mobile rack 4 and a carrying platform 51, wherein: the loading table 51 is used for supporting a workpiece to be transferred, the positioning mechanism 2 is located on the moving frame 4, and the moving frame 4 is movably arranged on the vehicle body 1 and used for pulling the positioned workpiece to be transferred onto the loading table 51.

The stacker 200 or the robot and the like can push the workpiece to be transported onto the vehicle body 1, namely, the transported workpiece can be erected on the moving frame 4, the positioning mechanism 2 on the moving frame 4 is used for positioning the workpiece to be transported, and the workpiece to be transported is pulled onto the bearing table 51 through the moving frame 4, so that the workpiece to be transported can be prevented from being directly and vertically placed onto the vehicle body 1, and the workpiece is damaged.

Referring to fig. 1 to 3, this embodiment provides a specific embodiment in which the movable frame 4 is movable: the transfer trolley 100 further comprises a third driving device 63 and a screw rod 61, wherein the screw rod 61 is rotatably connected to the trolley body 1, and the third driving device 63 is in transmission connection with the screw rod 61 and is used for driving the screw rod 61 to rotate; the movable frame 4 is fixed with a slide block 62, the slide block 62 is in threaded connection with the screw rod 61, and the movable frame 4 can be driven to move along the screw rod 61 when the screw rod 61 rotates. The vehicle body 1 is provided with a guide rail 65, the guide rail 65 is arranged in parallel with the screw rod 61, the moving frame 4 is provided with a guide block 64, and the guide block 64 is in sliding connection with the guide rail 65.

The third driving device 63 may be a motor, as shown in fig. 3, a belt pulley is fixed on an output shaft of the motor, another belt pulley is fixed on an end portion of the screw 61, and the two belt pulleys are driven by a belt, so that the motor drives the screw 61 to rotate. Alternatively, the third driving device 63 may also drive the screw 61 by gear transmission, chain transmission, or the like.

The lead screw 61 can rotate forward or reversely under the drive of the third driving device 63, and as the slide block 62 is in threaded connection with the lead screw 61, and the matching structure of the guide block 64 and the guide rail 65 can limit the slide block 62 to do linear motion, the movable frame 4 can follow the slide block 62 to reciprocate linearly along the lead screw 61, so that a workpiece to be rotated is pulled onto the bearing table 51, or returns to an initial position and waits for pulling of a next workpiece.

In order to facilitate the movement of the work piece to be transferred by the carriage 4 onto the carrying table 51, as an alternative embodiment, as shown in fig. 1, the carrying table 51 is provided with at least two balls 52, which are respectively located on opposite sides of the vehicle body 1, and the carrying table 51 is provided with balls 52.

The above-mentioned structure of plummer 51 can be by both sides will wait to transport work piece (such as car adds clamping apparatus) steady bearing, and when moving frame 4 moved, it takes place rolling friction to wait to transport the work piece through rolling between ball 52 and the plummer 51, and the work piece of being convenient for wait to transport removes in place on plummer 51, prevents work piece wearing and tearing.

Specifically, referring to fig. 1, the clamping portions are located at the side portions of the corresponding carrying table 51, and the two clamping portions cooperate to clamp and fix the workpiece to be transferred, which is positioned on the carrying table 51.

The movable frame 4 is lower than the carrying table 51, and the positioning portion 21 can be inserted into the workpiece from below the workpiece, and interference with other components on the vehicle body 1 is prevented when the movable frame 4 moves. The clamping part is higher than the bearing table 51, so that the workpiece supported on the bearing table 51 can be clamped and fixed by the clamping part, and the workpiece is prevented from moving.

As an alternative embodiment, referring to fig. 1 and 2, a cylinder 41 is provided on the moving frame 4, the positioning mechanism 2 includes a first driving device 22, the first driving device 22 is fixed on the moving frame 4, the positioning portion 21 is fixed on a telescopic end of the first driving device 22, and at least part of the positioning portion 21 is located in the cylinder 41 and reciprocates in a vertical direction along the cylinder 41.

The first driving device 22 may be an air cylinder or a hydraulic cylinder, and the positioning portion 21 is a rod structure, preferably a cylindrical rod, so as to prevent the workpiece to be transferred from being scratched. Referring to fig. 1 and 2, the cylinder 41 is vertically disposed, and when the telescopic end of the first driving device 22 stretches, the positioning portion 21 is driven to move up and down in the inner cavity of the cylinder 41, the positioning portion 21 is inserted into the workpiece to be transferred, and the workpiece to be transferred is positioned on the vehicle body 1 or is pulled out from the workpiece to be transferred, so that the workpiece to be transferred is conveniently taken down.

Referring to fig. 1, the two clamping parts are oppositely arranged, and after the moving frame 4 pulls the positioned workpiece to be transferred to be in place on the bearing table 51, the two clamping parts move in opposite directions, so that the workpiece to be transferred is clamped and fixed on the bearing table 51.

Specifically, referring to fig. 1, the clamping mechanism 3 further includes a second driving device 33, where the second driving device 33 may be an air cylinder or a hydraulic cylinder, and the second driving device 33 is fixed on the vehicle body 1; the clamping part comprises a baffle 31 and a roller 32 used for contacting with a workpiece to be transported, the roller 32 is positioned on the upper surface of the baffle 31, and the telescopic end of the second driving device 33 is fixedly connected with the baffle 31 and used for driving the baffle 31 to move in the horizontal direction.

The second driving devices 33 are horizontally arranged, the telescopic ends of the second driving devices 33 are fixedly connected with the baffle plates 31 through connecting plates, when the telescopic ends of the second driving devices 33 are telescopic, the baffle plates 31 can be driven to horizontally move, and the telescopic ends of the two second driving devices 33 are arranged back to back, so that the two baffle plates 31 can realize opposite or back movement.

When the workpiece to be transferred is clamped, the side parts of the rollers 32 are in contact with the workpiece to be transferred, the rollers 32 receive external force to roll, and the rolling of the rollers 32 is used for buffering the collision force between the clamping part and the workpiece to be transferred, so that the workpiece to be transferred is prevented from being damaged.

As an alternative embodiment, referring to fig. 1 and 2, the transfer trolley 100 further includes a limiting assembly 7, where the limiting assembly 7 and the clamping part are located on different sides of the vehicle body 1, and the limiting assembly 7 includes a fourth driving device 72 and a limiting plate 71, where the fourth driving device 72 is fixed on the vehicle body 1, and the limiting plate 71 is fixed on a telescopic end of the fourth driving device 72 and is movably disposed in a horizontal direction so as to abut against a side portion of the workpiece to be transferred.

The fourth driving device 72 may be an air cylinder or a hydraulic cylinder, and the fourth driving device 72 is horizontally disposed, and when the telescopic end of the fourth driving device 72 stretches out or contracts, the limiting plate 71 can be driven to move horizontally, so that the limiting plate 71 abuts against the side portion of the workpiece to be transferred, and the workpiece to be transferred is further limited to be shifted on the carrying table 51.

As an alternative embodiment, see fig. 2-4, the transfer trolley 100 further comprises a track 8, a trolley drive 91, wherein: the rail 8 is fixed on the floor of a warehouse, a rack portion 81 is provided on the rail 8, and as shown in fig. 2 and 3, a gear portion 92 is fixed at the output end of the trolley driving device 91, and the gear portion 92 is meshed with the rack portion 81, so that the trolley body 1 is driven to slide along the rail 8.

The trolley driving device 91 may be a motor, and the trolley driving device 91 drives the vehicle body 1 to travel along the track 8 through the matching structure of the gear portion 92 and the rack portion 81, so as to drive in or drive out of the warehouse, prevent the vehicle body 1 from interfering with other devices in the warehouse, and ensure smooth transfer of workpieces.

Referring to fig. 1 to 3, a transfer trolley 100 in this embodiment has the following procedure for loading a workpiece to be transferred:

referring to fig. 1 to 3, a workpiece to be transferred is erected on one side of a vehicle body 1 using a robot or a stacker 200, a positioning portion 21 moves in a vertical direction, is inserted into the workpiece to be transferred, positions the workpiece to be transferred on a moving frame 4, and a third driving device 63 drives the moving frame 4 to move linearly, and the bottom of the workpiece to be transferred is in rolling friction with a ball 52 on a loading table 51 until being assembled in place on the loading table 51. After the workpiece to be transferred moves in place on the bearing table 51, the two clamping parts move in opposite directions, the workpiece to be transferred is clamped and fixed on the bearing table 51, and the roller 32 can buffer collision force between the clamping parts and the workpiece to be transferred when contacting the workpiece to be transferred, so that the workpiece to be transferred is prevented from being damaged; the limiting plate 71 moves against the side of the workpiece to be transported.

At this time, the work to be transferred is fixed on the vehicle body 1. The workpiece to be transferred is firmly fixed on the vehicle body 1 through the matching structure of the positioning part 21, the clamping mechanism 3 and the limiting plate 71 on the vehicle body 1, so that the workpiece to be transferred is prevented from shaking during transferring of the vehicle body 1, and smooth storage and taking of the workpiece to be transferred are ensured. Referring to fig. 2 and 3, the carriage driving device 91 drives the carriage 1 to travel along the rail 8, and drives the workpiece to be transported away from the warehouse.

Example two

Referring to fig. 4, the present embodiment provides a handling and storing system for a machining jig of an automobile, which includes a stacker 200 and the above-mentioned transfer trolley 100, wherein the stacker 200 is used for pushing a workpiece to be transferred onto the automobile body 1.

Specifically, the automobile processing clamp can be an automobile instrument desk ballonet weakening line seamless processing clamp.

The stacker 200 travels between the racks 300 in the warehouse, and the stacker 200 plays a role in picking and placing the car processing jigs.

When the car processing clamp is taken, referring to fig. 4, after the stacker 200 takes out the car processing clamp, the telescopic fork pushes the car processing clamp onto the car body 1, so that the positioning mechanism 2 and the car processing clamp are positioned conveniently. After that, the transfer trolley 100 and the car-processing jig are loaded in the manner of the first embodiment, and the transfer trolley 100 is driven out of the warehouse with the car-processing jig. When the car machining fixture is stored, referring to fig. 4, the transfer trolley 100 enters a warehouse to be docked with the stacker 200, the telescopic fork of the stacker 200 takes out the car machining fixture, and then the car machining fixture is stored on the shelf 300.

This car adds clamping apparatus transport access system, stacker 200 can follow goods shelves 300 access car adds clamping apparatus to promote car adds clamping apparatus to automobile body 1 on, transfer trolley 100 drives car adds clamping apparatus and drives the storehouse away, the access of car adds clamping apparatus of being convenient for.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples in this specification.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides a transfer trolley which is characterized in that, including automobile body (1), positioning mechanism (2) and fixture (3), wherein:

the positioning mechanism (2) comprises a positioning part (21), wherein the positioning part (21) is movably arranged on the vehicle body (1), and the positioning part (21) can be inserted into a workpiece to be transported when moving, so that the workpiece to be transported is positioned on the vehicle body (1);

the clamping mechanism (3) comprises clamping parts which are positioned on at least two sides of the vehicle body (1) and are movably arranged on the vehicle body (1), so that workpieces to be transported are clamped and fixed on the vehicle body (1).

2. Transfer trolley according to claim 1, characterized in that it further comprises a mobile carriage (4) and a carrying platform (51), wherein:

the bearing table (51) is used for supporting workpieces to be transported, the positioning mechanism (2) is located on the moving frame (4), and the moving frame (4) is arranged on the vehicle body (1) in a movable mode and used for pulling the positioned workpieces to be transported to the bearing table (51).

3. Transfer trolley according to claim 2, characterized in that the carrying platforms (51) are provided with at least two and are located on opposite sides of the vehicle body (1), respectively, and that the carrying platforms (51) are provided with balls (52).

4. Transfer trolley according to claim 2, characterized in that the moving frame (4) is provided with a cylinder (41), the positioning mechanism (2) comprises a first driving device (22), the first driving device (22) is fixed on the moving frame (4), the positioning part (21) is fixed on the telescopic end of the first driving device (22), and at least part of the positioning part (21) is positioned in the cylinder (41) and reciprocates in the vertical direction along the cylinder (41).

5. Transfer trolley according to claim 1, characterized in that the gripping mechanism (3) further comprises a second driving device (33), the second driving device (33) being fixed to the vehicle body (1);

the clamping part comprises a baffle plate (31) and a roller (32) used for contacting a workpiece to be transported, the roller (32) is positioned on the upper surface of the baffle plate (31), and the telescopic end of the second driving device (33) is fixedly connected with the baffle plate (31) and used for driving the baffle plate (31) to move in the horizontal direction.

6. Transfer trolley according to claim 2, characterized in that it further comprises a third driving device (63) and a screw (61), said screw (61) being rotatably connected to said vehicle body (1), said third driving device (63) being in transmission connection with said screw (61) for driving said screw (61) in rotation;

the movable frame (4) is fixedly provided with a sliding block (62), the sliding block (62) is in threaded connection with the screw rod (61), and the screw rod (61) can drive the movable frame (4) to move along the screw rod (61) when rotating.

7. Transfer trolley according to claim 6, characterized in that the vehicle body (1) is provided with a guide rail (65), the guide rail (65) is arranged in parallel with the screw (61), the moving frame (4) is provided with a guide block (64), and the guide block (64) is slidingly connected with the guide rail (65).

8. Transfer trolley according to claim 1, characterized in that it further comprises a limit assembly (7), the limit assembly (7) and the clamping part being located on different sides of the vehicle body (1), the limit assembly (7) comprising a fourth driving device (72) and a limit plate (71), the fourth driving device (72) being fixed on the vehicle body (1), the limit plate (71) being fixed on the telescopic end of the fourth driving device (72) and being arranged movable in the horizontal direction for abutment against the side of the workpiece to be transferred.

9. Transfer trolley according to claim 1, characterized in that the transfer trolley further comprises a track (8), a trolley drive (91), wherein:

the rail (8) is fixed on the ground of a storehouse, a rack part (81) is arranged on the rail (8), a gear part (92) is fixed at the output end of the trolley driving device (91), and the gear part (92) is meshed with the rack part (81), so that the trolley body (1) is driven to slide along the rail (8).

10. A handling and storing system for a car machining fixture, characterized by comprising a stacker (200) and a transfer trolley (100) according to any one of claims 1-9, the stacker being adapted to push a workpiece to be transferred onto the car body (1).