CN215557203U - Conveying mechanism - Google Patents

Abstract

The utility model belongs to the technical field of electronic product production and manufacturing, and discloses a conveying mechanism. The conveying mechanism comprises a mounting frame; the grabbing component is used for grabbing the workpiece to be conveyed; the rotating shaft is arranged on the mounting rack; the adjusting component is positioned between the rotating shaft and the grabbing component, one side of the adjusting component is rotatably connected to the rotating shaft, and the other side of the adjusting component is connected to the grabbing component; the lifting driving mechanism is arranged on the mounting frame and connected to the adjusting assembly, the lifting driving mechanism can drive the grabbing assembly to move up and down through the adjusting assembly, and the grabbing assembly is driven by the adjusting assembly to rotate relative to the rotating shaft. This conveying mechanism's lift actuating mechanism can snatch the subassembly elevating movement through the adjusting part drive, treats that the transport work piece can carry out linear movement, and the good reliability, positioning accuracy is high, and meanwhile, the adjusting part drives and snatchs the subassembly and rotate for the rotation axis, makes and treats that the transport work piece can carry out angle modulation, and freedom, flexibility are good.

Description

Conveying mechanism

Technical Field

The utility model relates to the technical field of electronic product production and manufacturing, in particular to a conveying mechanism.

Background

When electronic products are assembled and produced, a conveying mechanism is needed to convey parts from one station to the next station. The existing conveying mechanism can adopt the following two modes:

first, conveying mechanism is the manipulator, and the manipulator can imitate some action functions of people's hand and arm for snatch, transport the work piece, in order to realize automated operation. The manipulator has multiple degrees of freedom, has the advantages of both a human and a machine in the aspects of structure and performance, and is high in flexibility, but the repeated positioning precision of the manipulator is low;

secondly, conveying mechanism is ordinary linear module, and linear module has higher repeated positioning accuracy, but can't realize the high degree of freedom gesture that the manipulator is the same, leads to the flexibility relatively poor. If when the angle of the workpiece needs to be adjusted in the conveying process, a rotating motor and a rotating platform need to be additionally arranged, the rotating motor drives the rotating platform to rotate so as to achieve the purpose of adjusting the angle of the workpiece, but the number of parts is too large, and the production cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a conveying mechanism which can simultaneously give consideration to positioning accuracy and high degree of freedom and is low in production cost.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a conveying mechanism, comprising a mounting frame, further comprising:

the grabbing component is used for grabbing the workpiece to be conveyed;

the rotating shaft is arranged on the mounting rack;

the adjusting assembly is positioned between the rotating shaft and the grabbing assembly, one side of the adjusting assembly is rotatably connected to the rotating shaft, and the other side of the adjusting assembly is connected to the grabbing assembly;

and the lifting driving mechanism is arranged on the mounting frame and connected to the adjusting component, and can drive the grabbing component to move up and down through the adjusting component and drive the grabbing component to rotate relative to the rotating shaft through the adjusting component.

Preferably, the adjusting device further comprises a rotating seat, the rotating seat is arranged on the adjusting assembly, and the rotating seat is rotatably sleeved on the rotating shaft.

Preferably, the rotary seat includes:

the rotating connecting block is arranged on the adjusting assembly and is provided with a first groove;

the pressing block is arranged on the rotating connecting block, a second groove is formed in the pressing block corresponding to the first groove, and the first groove and the second groove are folded to form a through hole for the rotating shaft to penetrate through.

Preferably, at least one set of rotation limiting surfaces is arranged on the outer wall of the rotating shaft, and each set of rotation limiting surfaces can be respectively abutted against the inner wall of the first groove and the inner wall of the second groove and used for limiting the rotating shaft.

Preferably, the method further comprises the following steps:

the mounting seat is arranged on the mounting frame;

and the bearing is sleeved on the rotating shaft and positioned between the rotating shaft and the mounting seat.

Preferably, the method further comprises the following steps:

the magnetic ring is fixedly sleeved on the rotating shaft;

and the sensor is arranged on the mounting rack and used for detecting the rotation angle of the magnetic ring.

Preferably, the grasping assembly includes:

the fixing plate is connected to the adjusting component;

the mounting plate is arranged in parallel with the fixed plate at intervals;

the upright post is connected between the fixing plate and the mounting plate;

and the sucking disc is arranged on the mounting plate and used for adsorbing the workpiece to be conveyed.

Preferably, the mounting plate is made of an antistatic material.

Preferably, the method further comprises the following steps:

the limiting block is arranged on the adjusting component;

the limiting seat is arranged on the mounting frame, a limiting groove is formed in the limiting seat, and the limiting groove is used for limiting the limiting block.

Preferably, the grabbing device further comprises a guide post, the guide post is arranged on the grabbing assembly, a guide hole is formed in the adjusting assembly corresponding to the guide post, and the guide post penetrates through the guide hole in a sliding mode.

The utility model has the beneficial effects that:

according to the conveying mechanism provided by the utility model, the mounting frame is used for mounting the lifting driving mechanism, and the mounting frame plays a role in integral support. The lifting driving mechanism is connected to the grabbing assembly and can drive the grabbing assembly to move up and down and drive the workpiece to be conveyed to move along the vertical direction, so that the purpose of conveying the workpiece to be conveyed is achieved. One side of the adjusting component is rotatably connected to the rotating shaft, the other side of the adjusting component is connected to the grabbing component, and the adjusting component is used for adjusting the angle of the grabbing component. The lifting driving mechanism can grab the lifting movement of the assembly through the driving of the adjusting assembly, the workpiece to be conveyed can be linearly moved, the reliability is good, the positioning precision is high, meanwhile, the adjusting assembly drives the grabbing assembly to rotate relative to the rotating shaft, so that the workpiece to be conveyed can be subjected to angle adjustment, the freedom and the flexibility are good, parts such as a rotating motor and a rotating platform are not required to be additionally added, the requirements of the positioning precision and the freedom degree can be simultaneously considered, the structure is simple, and the production cost is saved.

Drawings

FIG. 1 is a schematic view of a conveyor mechanism according to the present invention;

FIG. 2 is a schematic view of another perspective of the transport mechanism of the present invention;

FIG. 3 is a schematic view of the conveyor mechanism of the present invention showing the structure of the rotatable base;

fig. 4 is a schematic structural view of a rotating shaft in the conveying mechanism of the present invention.

In the figure:

1. a mounting frame; 2. a grasping assembly; 3. a rotating shaft; 4. an adjustment assembly; 5. a lifting drive mechanism; 6. a rotating seat; 7. a limiting block; 8. a limiting seat; 9. a guide post; 10. a magnetic ring; 11. a sensor; 12. a mounting seat; 13. a bearing;

21. a fixing plate; 22. mounting a plate; 23. a column; 24. a suction cup;

31. rotating the limiting surface;

41. an adjusting plate; 42. a connecting plate;

51. a servo motor; 52. an electric cylinder;

61. rotating the connecting block; 62. and (5) a compression block.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

The embodiment provides a conveying mechanism for conveying workpieces to be conveyed, wherein the workpieces to be conveyed particularly refer to parts such as a display screen, a back plate and the like in an electronic product. As shown in fig. 1, the conveying mechanism includes a mounting frame 1, a lifting driving mechanism 5 and a grabbing component 2, and the grabbing component 2 is used for grabbing a workpiece to be conveyed so as to ensure the fixing effect of the workpiece to be conveyed. The mounting frame 1 is used for mounting the lifting driving mechanism 5, and the mounting frame 1 plays a role in integral support. The lifting driving mechanism 5 is connected to the grabbing component 2, the lifting driving mechanism 5 can drive the grabbing component 2 to move up and down, and drives the workpiece to be conveyed to move along the vertical direction, so that the purpose of conveying the workpiece to be conveyed is achieved.

Because the same high degree of freedom gesture of manipulator can't be realized to current ordinary module mechanism, the unable repeated positioning accuracy who realizes ordinary module mechanism of manipulator, in order to solve this problem, the conveying mechanism that this embodiment provided still includes rotation axis 3 and adjusting part 4, rotation axis 3 sets up on mounting bracket 1, mounting bracket 1 provides strong point and installation space for the fixed of rotation axis 3, adjusting part 4 is located rotation axis 3 and snatchs between the subassembly 2, one side of adjusting part 4 is rotated and is connected in rotation axis 3, the opposite side is connected in snatching subassembly 2, lift actuating mechanism 5 connects in adjusting part 4, lift actuating mechanism 5 can snatch subassembly 2 lift removal through the drive of adjusting part 4, and it rotates for rotation axis 3 to snatch subassembly 2 through the drive of adjusting part 4.

The conveying mechanism provided by the embodiment is rotatably connected to the rotating shaft 3 through one side of the adjusting component 4, the other side of the adjusting component is connected to the grabbing component 2, and the adjusting component 4 is used for adjusting the angle of the grabbing component 2. Lifting drive mechanism 5 can snatch 2 elevating movement of subassembly through the drive of adjusting part 4, treat that the work piece of carrying can carry out linear movement, the good reliability, positioning accuracy is high, meanwhile, adjusting part 4 drives and snatchs subassembly 2 and rotates for rotation axis 3, make and treat that the work piece of carrying can carry out angle modulation, freedom, the flexibility is good, and need not additionally to add parts such as rotating electrical machines and rotary platform, just can compromise the demand of positioning accuracy and degree of freedom simultaneously, moreover, the steam generator is simple in structure, and the production cost is saved.

It can be understood that, under the abutting action of the lifting driving mechanism 5, the adjusting component 4 drives the grabbing component 2 to swing relative to the rotating shaft 3, which is actually equivalent to that the swinging motion direction of the grabbing component 2 can be divided into vertical and rotating directions to replace the movement of the linear module and the rotation of the rotating platform.

The lifting drive mechanism 5, the adjustment assembly 4, the grasping assembly 2, and the rotary shaft 3 will be described in detail below.

The lifting driving mechanism 5 may be a structure capable of realizing lifting movement, such as an air cylinder and a hydraulic cylinder, as shown in fig. 1, in this embodiment, preferably, the lifting driving mechanism 5 includes a servo motor 51 and an electric cylinder 52, an output end of the servo motor 51 is connected to the electric cylinder 52, the electric cylinder 52 is connected to the adjusting assembly 4, a rotary motion of the servo motor 51 is converted into a linear motion of the electric cylinder 52, and parameters, such as a rotating speed and a rotating time, of the servo motor 51 are precisely controlled, so that a moment and a moving displacement of the electric cylinder 52 are controlled, and the accuracy of lifting is ensured.

Further, the adjusting assembly 4 is a double-layer plate structure, the adjusting assembly 4 specifically includes an adjusting plate 41 and a connecting plate 42, the adjusting plate 41 is located above the connecting plate 42, the adjusting plate 41 is connected to the output end of the electric cylinder 52 and can rotate relative to the rotating shaft 3, the connecting plate 42 is arranged in parallel relative to the adjusting plate 41, the top surface of the connecting plate 42 is connected to the adjusting plate 41, and the bottom surface of the connecting plate 42 is connected to the grabbing assembly 2. When electric cylinder 52 drives adjusting plate 41 to move up and down, adjusting plate 41 can also rotate relative to rotation axis 3 simultaneously, makes adjusting plate 41 realize straight line degree of freedom and rotational degree of freedom simultaneously, and connecting plate 42 has played adjusting plate 41 and has snatched the effect of intermediate junction between the subassembly 2, adopts this kind of structure, when keeping high repetition precision, increases a gyration action for rotation axis 3, increases the quantity of whole mechanism degree of freedom, improves the functionality.

Further, as shown in fig. 1-2, the grabbing component 2 is a double-layer plate structure, the grabbing component 2 includes a fixing plate 21, a mounting plate 22, a column 23 and a suction cup 24, the fixing plate 21 is connected to the connecting plate 42 of the adjusting component 4, the mounting plate 22 and the fixing plate 21 are arranged in parallel at an interval, the column 23 is connected between the fixing plate 21 and the mounting plate 22, and the suction cup 24 is arranged on the mounting plate 22 for adsorbing the workpiece to be conveyed. The fixing plate 21 is used for transmitting the lifting and rotating motion of the adjusting component 4 to the mounting plate 22, the mounting plate 22 is used for mounting the suction cup 24 so as to provide a mounting space for the suction cup 24, the suction cup 24 is communicated with a vacuum generator (not shown in the figure), the vacuum generator is used for extracting air inside the suction cup 24, and negative pressure generated inside the suction cup 24 adsorbs a workpiece to be conveyed. Between the fixed plate 21 and the mounting plate 22, a stud 23 is provided, which allows a certain clearance between the mounting plate 22 and the fixed plate 21, in order to provide the necessary space for the connection line between the suction cup 24 and the vacuum generator.

It can be understood that the number of the columns 23 may be multiple, and the multiple columns 23 are distributed on the mounting plate 22 in a certain order to ensure a good supporting effect and a good balance. The quantity of sucking disc 24 can be a plurality ofly, and a plurality of sucking discs 24 can adsorb plate-shaped structure's the work piece of treating to carry the work piece jointly to the assurance is treated the effect of snatching.

Preferably, the mounting plate 22 is made of an antistatic material, so that when the suction cup 24 adsorbs a workpiece to be conveyed, static electricity is prevented from being generated between the mounting plate 22 and the workpiece to be conveyed easily, and the static electricity eliminating effect is good.

As shown in fig. 1-2, the conveying mechanism further includes a guide post 9, the guide post 9 is disposed on the fixing plate 21 of the grabbing assembly 2, a guide hole is disposed on the connecting plate 42 of the adjusting assembly 4 corresponding to the guide post 9, and the guide post 9 is slidably disposed through the guide hole. Through the sliding fit of guide post 9 and guiding hole, played the guide effect to guarantee the smoothness nature at the lift in-process. Preferably, the number of guide posts 9 and guiding hole is two, and two guide posts 9 set up respectively in the both sides of fixed plate 21, and two guide posts 9 one-to-one wear to locate two guiding holes, avoid appearing the condition of skew, and the equilibrium is good.

Optionally, a guide sleeve is arranged on the connecting plate 42 in a penetrating manner, the guide hole is formed in the center of the guide sleeve, a circular truncated cone is arranged on the outer wall of the guide sleeve in a protruding manner, so that the cross sections of the guide sleeve and the circular truncated cone form a T-shaped structure, the circular truncated cone of the guide sleeve abuts against the bottom surface of the connecting plate 42 and is connected with the bottom surface of the connecting plate through a bolt, and the fixing ring is sleeved on the guide column 9 and abuts against the bottom of the guide sleeve for limiting the guide sleeve.

In order to further improve the guiding effect of the adjusting assembly 4, as shown in fig. 1, the conveying mechanism further comprises a limiting block 7 and a limiting seat 8, the limiting block 7 is arranged on the adjusting plate 41 of the adjusting assembly 4, the limiting seat 8 is arranged on the mounting frame 1, a limiting groove is formed in the limiting seat 8, and the limiting groove is used for limiting the limiting block 7. Preferably, the limiting groove and the limiting block 7 extend along the vertical direction, the limiting groove is a through groove structure with an opening arranged towards the limiting block 7, the limiting groove can accommodate the limiting block 7 and can provide a certain moving space for the limiting block 7, and the limiting block 7 can move along the vertical direction along the side wall of the limiting groove. Through the sliding fit of spacing groove and stopper 7, played the guide effect to guarantee the smooth and easy nature at the lift in-process.

In order to realize the installation of the rotating shaft 3, as shown in fig. 3, the conveying mechanism further includes an installation seat 12 and a bearing 13, the installation seat 12 is disposed on the installation frame 1, the installation seat 12 is used for installing the rotating shaft 3, and the bearing 13 is sleeved on the rotating shaft 3 and is located between the rotating shaft 3 and the installation seat 12. By providing the bearing 13, the rotation smoothness of the rotary shaft 3 is ensured. Optionally, the number of the mounting seats 12 and the number of the bearings 13 are two, the two mounting seats 12 are respectively disposed at two ends of the rotating shaft 3, and the two bearings 13 are disposed in the two mounting seats 12 in a one-to-one correspondence manner, so that necessary support is provided for rotation at two ends of the rotating shaft 3.

The conveying mechanism further comprises a rotating seat 6, the rotating seat 6 is arranged on the adjusting component 4, and the rotating seat 6 is rotatably sleeved on the rotating shaft 3. Specifically, the rotating seat 6 comprises a rotating connecting block 61 and a pressing block 62, the rotating connecting block 61 is arranged on the adjusting assembly 4, a first groove is formed in the rotating connecting block 61, the pressing block 62 is arranged on the rotating connecting block 61, a second groove is formed in the pressing block 62 corresponding to the first groove, and the first groove and the second groove are folded to form a through hole for the rotation shaft 3 to penetrate through.

After the installation of rotation axis 3 is accomplished, install rotation connecting block 61 to regulating plate 41 earlier, rotation axis 3 runs through first recess, first recess can partly hold rotation axis 3, then compact heap 62 passes through fixing bolt and connects on the top surface of rotation connecting block 61, utilize compact heap 62 to compress tightly rotation axis 3 in the inner wall of first recess and second recess, it comprises the split type structure of rotation connecting block 61 and compact heap 62 two parts to rotate seat 6, be convenient for installation and dismantlement.

Further, as shown in fig. 3-4, at least one set of rotation limiting surfaces 31 is disposed on the outer wall of the rotating shaft 3, and each set of rotation limiting surfaces 31 can abut against the inner wall of the first groove and the inner wall of the second groove respectively for limiting the rotating shaft 3.

Specifically, the rotation shaft 3 is rubbed flat from the end of the rotation shaft 3 along the two sides of the outer wall of the rotation shaft 3, so that the rotation shaft 3 forms a flat shaft structure, two planes of the flat shaft structure are a set of rotation limiting surfaces 31, correspondingly, a through hole formed by the first groove and the second groove is not a round hole structure, the structure of the through hole is matched with the appearance of the rotation shaft 3, the through hole is similar to a rectangular hole structure, so that each set of rotation limiting surfaces 31 can be abutted to the inner wall of the first groove and the inner wall of the second groove respectively, and the limitation on the rotation shaft 3 is realized. The purpose of adopting this kind of setting is that if the seat 6 that rotates can freely rotate for rotation axis 3, then wait to carry the work piece and can not suspend to the angle that needs the regulation, through rotatory spacing face 31 respectively with the inner wall of first recess and the inner wall of second recess mutually support, the seat 6 that rotates after certain angle for rotation axis 3 can suspend, has played the actuating effect.

Preferably, the group number of the rotation limiting surfaces 31 is two groups, four rotation limiting surfaces 31 are arranged along the circumferential direction of the rotating shaft 3, the included angle between two adjacent rotation limiting surfaces 31 is 90 degrees, and the two adjacent rotation limiting surfaces 31 are connected through the outer wall arc-shaped surface of the rotating shaft 3.

Further, as shown in fig. 3, the conveying mechanism further includes a magnetic ring 10 and a sensor 11, the magnetic ring 10 is fixedly sleeved on the rotating shaft 3, the sensor 11 is specifically a hall sensor, the sensor 11 is disposed on the mounting frame 1 and is used for detecting the rotation angle of the magnetic ring 10, and the sensor 11 can indirectly detect the rotation angle of the rotating shaft 3 because the magnetic ring 10 is fixedly disposed relative to the rotating shaft 3.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings and are used for convenience in description and simplicity in operation, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean 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 utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. The utility model provides a conveying mechanism, includes mounting bracket (1), its characterized in that still includes:

the grabbing component (2) is used for grabbing workpieces to be conveyed;

the rotating shaft (3) is arranged on the mounting rack (1);

the adjusting assembly (4) is positioned between the rotating shaft (3) and the grabbing assembly (2), one side of the adjusting assembly (4) is rotatably connected to the rotating shaft (3), and the other side of the adjusting assembly (4) is connected to the grabbing assembly (2);

and the lifting driving mechanism (5) is arranged on the mounting rack (1) and connected to the adjusting component (4), the lifting driving mechanism (5) can drive the grabbing component (2) to move up and down through the adjusting component (4), and the grabbing component (2) is driven by the adjusting component (4) to rotate relative to the rotating shaft (3).

2. The conveying mechanism according to claim 1, further comprising a rotating seat (6), wherein the rotating seat (6) is disposed on the adjusting assembly (4), and the rotating seat (6) is rotatably sleeved on the rotating shaft (3).

3. The delivery mechanism according to claim 2, wherein the rotating seat (6) comprises:

the rotating connecting block (61) is arranged on the adjusting component (4), and a first groove is formed in the rotating connecting block (61);

the pressing block (62) is arranged on the rotating connecting block (61), a second groove is arranged on the pressing block (62) corresponding to the first groove, and the first groove and the second groove are folded to form a through hole for the rotation shaft (3) to penetrate through.

4. The conveying mechanism according to claim 3, wherein at least one set of rotation limiting surfaces (31) is provided on the outer wall of the rotating shaft (3), each set of rotation limiting surfaces (31) being capable of abutting against the inner wall of the first groove and the inner wall of the second groove, respectively, for limiting the rotating shaft (3).

5. The delivery mechanism of any one of claims 1-4, further comprising:

the mounting seat (12) is arranged on the mounting rack (1);

and the bearing (13) is sleeved on the rotating shaft (3) and is positioned between the rotating shaft (3) and the mounting seat (12).

6. The delivery mechanism of any one of claims 1-4, further comprising:

the magnetic ring (10) is fixedly sleeved on the rotating shaft (3);

the sensor (11) is arranged on the mounting rack (1) and used for detecting the rotating angle of the magnetic ring (10).

7. Conveying mechanism according to any one of claims 1-4, characterized in that the gripping assembly (2) comprises:

a fixing plate (21) connected to the adjusting assembly (4);

mounting plates (22) arranged in parallel with the fixing plate (21) at intervals;

a column (23) connected between the fixing plate (21) and the mounting plate (22);

and the sucking disc (24) is arranged on the mounting plate (22) and is used for sucking the workpiece to be conveyed.

8. The delivery mechanism according to claim 7, wherein the mounting plate (22) is made of an antistatic material.

9. The delivery mechanism of any one of claims 1-4, further comprising:

the limiting block (7) is arranged on the adjusting component (4);

the limiting seat (8) is arranged on the mounting frame (1), a limiting groove is formed in the limiting seat (8), and the limiting groove is used for limiting the limiting block (7).

10. The conveying mechanism according to any one of claims 1 to 4, further comprising a guide post (9), wherein the guide post (9) is disposed on the grabbing component (2), a guide hole is disposed on the adjusting component (4) corresponding to the guide post (9), and the guide post (9) is slidably disposed in the guide hole.

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