Grabbing mechanism

Abstract

The utility model relates to the technical field of packaging material processing, and discloses a grabbing mechanism which comprises an installation disc, a first adsorption assembly and a second adsorption assembly. The mounting disc comprises an inner ring part, an outer ring part and a connecting part; the outer ring part is arranged around the outer side of the inner ring part, and the connecting part is arranged between the inner ring part and the outer ring part; the first adsorption assembly comprises a first adjusting block and a first air nozzle; the first adjusting block is movably connected with the outer ring part; the second adsorption assembly comprises a second adjusting block and a second air nozzle; one end of the second adjusting block is movably connected with the connecting part; the first adjusting block adjusts the arrangement position of the first air nozzle in the circumferential direction of the outer ring part, and the second adjusting block adjusts the arrangement position of the second air nozzle in the radial direction of the connecting part. The position of the first air nozzle is adjusted in the circumferential direction of the outer ring part through the first adjusting block, the position of the second air nozzle is adjusted in the radial direction of the connecting part through the second adjusting block, circumferential and radial all-directional adjustment is achieved, the grabbing requirements of packaging pieces of different structures and sizes are met, and the use adaptability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging material processing, in particular to a grabbing mechanism. Background Art

[0002] Packaging materials include pearl cotton, cardboard, polyethylene, polyvinyl chloride, etc. Taking pearl cotton as an example, pearl cotton has many advantages such as water-proof and moisture-proof, shockproof, soundproof, heat-insulating, good plasticity, strong toughness, recycling, environmental protection, strong impact resistance, etc. It also has good chemical resistance and is an ideal packaging material. Most of the existing packaging materials have the limitation of non-plasticity, and many packaging materials need to undergo a series of tedious processing before they can be formed, and the key step requires bonding equipment.

[0003] The laminating equipment will apply glue on one side of the package, then grab another package through the gripping mechanism, and then press and bond the grabbed package with the glued package. The existing gripping mechanism can only grab packages of a single structure size. When laminating packages of different structure sizes, different clamps need to be replaced accordingly, resulting in poor adaptability of the gripping mechanism and failure to meet the processing needs of diversified packages. Utility Model Content

[0004] The technical problems to be solved by the utility model are:

[0005] The grabbing mechanism cannot meet the grabbing requirements of packages of different specifications and sizes and has poor adaptability.

[0006] In order to solve the above technical problems, the utility model provides a grabbing mechanism, comprising:

[0007] A mounting plate, the mounting plate comprising an inner ring portion, an outer ring portion and a connecting portion; the inner ring portion is in a straight plate shape, the outer ring portion is in an annular straight plate shape, the outer ring portion is arranged around the outer side of the inner ring portion, and the connecting portion is arranged between the inner ring portion and the outer ring portion;

[0008] A first adsorption component, the first adsorption component includes a first adjustment block and a first air nozzle; the first adjustment block is movably connected to the outer ring portion, the first adjustment block extends from the outer ring portion toward the inner ring portion, and the first air nozzle is arranged at one end of the first adjustment block close to the inner ring portion; and

[0009] A second adsorption component, the second adsorption component comprises a second adjustment block and a second air nozzle; one end of the second adjustment block is movably connected to the connecting portion, the other end of the second adjustment block is arranged at one side of the connecting portion, and the second air nozzle is arranged at a side of the second adjustment block away from the connecting portion;

[0010] The first adjusting block adjusts the setting position of the first gas nozzle along the circumferential direction of the outer ring portion, and the second adjusting block adjusts the setting position of the second gas nozzle along the radial direction of the connecting portion.

[0011] In one of the embodiments, a first adjustment hole is provided on the outer ring portion; the first adjustment hole is in the shape of an elongated strip and extends along the periphery of the outer ring portion, and the first adjustment block is movably connected to the outer ring portion through the first adjustment hole.

[0012] In one embodiment, a plurality of the first adjustment holes are provided, and the first adjustment holes are spaced apart along the outer ring portion; the number of the first adsorption components is the same as the number of the first adjustment holes, and are provided in one-to-one correspondence.

[0013] In one embodiment, the outer ring portion is a rectangular ring structure, and two first adjustment holes are arranged on four sides of the outer ring portion, and the two first adjustment holes on each side are symmetrical with respect to the center position of the side.

[0014] In one embodiment, a first strip hole is provided on the first adjustment block; the first strip hole is in a long strip shape, the first strip hole at least partially overlaps with the first adjustment hole, and an extension direction of the first strip hole is perpendicular to the first adjustment hole.

[0015] In one embodiment, the connecting portion is in the shape of an elongated strip, a second adjustment hole is provided on the connecting portion, the second adjustment hole is in the shape of an elongated strip and extends in the same direction as the connecting portion, and the second adjustment block is movably connected to the connecting portion through the second adjustment hole.

[0016] In one embodiment, a plurality of the connecting parts are provided, and the connecting parts are evenly spaced around the inner ring part. The number of the second adsorption components is the same as that of the connecting parts, and they are respectively provided in one-to-one correspondence.

[0017] In one embodiment, each of the second air nozzles is arranged on one side of each of the connecting portions along a clockwise or counterclockwise direction relative to the inner ring portion.

[0018] In one embodiment, the inner ring portion is in the shape of a rectangular straight plate, a central hole is provided at the center of the inner ring portion, and third adjustment holes are provided on two opposite sides of the inner ring portion;

[0019] The gripping mechanism also includes a third adsorption component; the third adsorption component includes a third adjustment block and a third air nozzle, the third adjustment block is movably connected to the inner ring portion through the third adjustment hole, the third adjustment block extends from the inner ring portion toward the inner direction of the middle hole, and the third air nozzle is arranged in the middle hole.

[0020] In one of the embodiments, the grabbing mechanism further includes a grabbing driving member; the grabbing driving member is connected to the inner ring portion, and the grabbing driving member is used to drive the mounting plate to move in a direction perpendicular to an extension plane where the mounting plate is located.

[0021] Compared with the prior art, the above grabbing mechanism has the following beneficial effects:

[0022] By configuring the mounting disk to have an outer ring portion surrounding the outside of the inner ring portion, and then connecting the inner ring portion and the outer ring portion by a connecting portion, the first adjusting block adjusts the setting position of the first air nozzle along the circumferential direction of the outer ring portion, and the second adjusting block adjusts the setting position of the second air nozzle along the radial direction of the connecting portion. The first air nozzle and the second air nozzle cooperate to adsorb and grasp the package, thereby achieving all-round adjustment in the circumferential and radial directions to meet the grasping requirements of packages of different structures and sizes, improve adaptability of use, and there is no need to replace the mounting disk when grasping packages of different specifications, thereby reducing processing costs and improving processing efficiency.

[0023] By setting two first adjustment holes on the four sides of the outer ring, and the two first adjustment holes on each side are symmetrical with respect to the center position of the side, and then setting the same number of first adsorption components as the first adjustment holes, and setting them one by one, it is ensured that the grasping mechanism can grasp the circumferential edge of the package uniformly and the reliability of grasping is ensured.

[0024] By arranging the connecting parts at uniform intervals around the inner ring part, the number of second adsorption components and the connecting parts is the same, and they are arranged one by one, and then the second air nozzle of each second adsorption component is arranged on one side of each connecting part in a clockwise or counterclockwise direction relative to the inner ring part, the uniformity of the adsorption of the package by the grasping mechanism in the radial direction is ensured, thereby further improving the reliability of grasping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a grabbing mechanism according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 The schematic diagram of the structure after the grab driving part is hidden;

[0027] Figure 3 for Figure 2 Schematic diagram of the decomposition structure of the medium.

[0028] The meanings of the numbers in the accompanying drawings are:

[0029] 100. Grasping mechanism;

[0030] 10. mounting plate; 11. inner ring portion; 111. middle hole; 112. third adjustment hole; 12. outer ring portion; 121. first adjustment hole; 13. connecting portion; 131. second adjustment hole;

[0031] 20. first adsorption assembly; 21. first adjustment block; 22. first air nozzle; 25. first strip hole;

[0032] 30. second adsorption assembly; 31. second adjustment block; 32. second air nozzle; 35. second strip hole;

[0033] 40. third adsorption assembly; 41. third adjustment block; 42. third air nozzle; 45. third strip hole;

[0034] 50. Grab the drive parts. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] See also Figures 1 to 3, is a gripping mechanism 100 of an embodiment of the utility model, comprising a mounting seat, a first adsorption component 20 and a second adsorption component 30. The mounting plate 10 comprises an inner ring portion 11, an outer ring portion 12 and a connecting portion 13; the inner ring portion 11 is in the shape of a straight plate, the outer ring portion 12 is in the shape of a ring-shaped straight plate, the outer ring portion 12 is arranged around the outer side of the inner ring portion 11, and the connecting portion 13 is arranged between the inner ring portion 11 and the outer ring portion 12. The first adsorption component 20 comprises a first adjustment block 21 and a first air nozzle 22; the first adjustment block 21 is movably connected to the outer ring portion 12, the first adjustment block 21 extends from the outer ring portion 12 to the direction close to the inner ring portion 11, and the first air nozzle 22 is arranged at one end of the first adjustment block 21 close to the inner ring portion 11. The second adsorption assembly 30 includes a second adjustment block 31 and a second air nozzle 32; one end of the second adjustment block 31 is movably connected to the connecting portion 13, the other end of the second adjustment block 31 is arranged on one side of the connecting portion 13, and the second air nozzle 32 is arranged on the side of the second adjustment block 31 away from the connecting portion 13. The first air nozzle 22 and the second air nozzle 32 cooperate with each other to adsorb and grasp the package, and by adjusting the positions of the first air nozzle 22 and the second air nozzle 32, the grasping requirements of different packages can be met. Among them, the first adjustment block 21 adjusts the setting position of the first air nozzle 22 along the circumferential direction of the outer ring portion 12, and the second adjustment block 31 adjusts the setting position of the second air nozzle 32 along the radial direction of the connecting portion 13. Here, the circumferential direction refers to the direction along the outer edge of the mounting disk 10. Since the outer ring portion 12 is arranged at the outer edge of the mounting disk 10, the circumferential direction means moving along the annular path of the outer ring portion 12. Here, the radial direction refers to the direction of the straight line passing through the center of the mounting disk 10. Since the outer ring portion 12 is arranged outside the inner ring portion 11, the radial direction means moving along the outer ring portion 12 toward the inner ring portion 11 or the inner ring portion 11 toward the outer ring portion 12. The connecting portion 13 is arranged between the inner ring portion 11 and the outer ring portion 12, so moving along the connecting portion 13 is radial movement. Through the adjustment operation in the circumferential and radial directions, a full range of adjustment operations can be achieved to meet the needs of packaging of more shapes and sizes, thereby improving the adaptability of the grasping mechanism 100.

[0042] Further, the inner ring portion 11 is in the shape of a rectangular straight plate, and the inner ring portion 11 is arranged at the center of the mounting plate 10. A central hole 111 is provided at the center of the inner ring portion 11. The central hole 111 is in the shape of a through hole and penetrates both sides of the inner ring portion 11 in a direction perpendicular to the extension plane of the inner ring portion 11. Third adjustment holes 112 are provided on opposite sides of the inner ring portion 11. The third adjustment holes 112 are arranged in the shape of long strips on both sides of the central hole 111. In this embodiment, the gripping mechanism 100 also includes a third adsorption component 40. The third adsorption component 40 includes a third adjustment block 41 and a third air nozzle 42; the third adjustment block 41 is in the shape of a long strip, and the third adjustment block 41 is movably connected to the inner ring portion 11 through the third adjustment hole 112, and the third adjustment block 41 extends from the inner ring portion 11 to the inner direction of the central hole 111, and the third air nozzle 42 is arranged in the central hole 111, and the adsorption stability at the center of the package is improved by the third air nozzle 42. It can be understood that the number of the third adsorption components 40 is two, and the two third adsorption components 40 are respectively arranged at two third adjustment holes 112, and the third adsorption components 40 on both sides extend toward each other.

[0043] Furthermore, a third strip hole 45 is provided on the third adjustment block 41. The third strip hole 45 is in the shape of a long strip, and extends in the same direction as the third adjustment block 41. The extension direction of the third strip hole 45 is perpendicular to the extension direction of the third adjustment hole 112. The third strip hole 45 at least partially overlaps with the third adjustment hole 112 to ensure that the bolts pass through, and the third adjustment block 41 is clamped and fixed to the inner ring portion 11 by the bolts. The position of the third air nozzle 42 in the circumferential direction of the inner ring portion 11 is adjusted through the third adjustment hole 112, and the position of the third air nozzle 42 in the radial direction of the inner ring portion 11 is adjusted through the third strip hole 45, so that the full angle adjustment of the third air nozzle 42 is realized, and the adaptability to the adsorption of packages of different shapes and specifications is improved.

[0044] Furthermore, the outer ring portion 12 is a rectangular annular straight plate, and the outer ring portion 12 is coplanar with the extension plane where the inner ring portion 11 is located, and the outer ring portion 12 is arranged around the outer side of the inner ring portion 11. A first adjustment hole 121 is arranged on the outer ring portion 12. The first adjustment hole 121 is arranged in a long strip shape and extends along the periphery of the outer ring portion 12, and the first adjustment block 21 is movably connected to the outer ring portion 12 through the first adjustment hole 121. In this embodiment, a plurality of first adjustment holes 121 are arranged, and each first adjustment hole 121 is arranged at intervals along the outer ring portion 12, and the first adsorption component 20 is arranged in the same number as the first adjustment hole 121, and is arranged one by one.

[0045] Further, two first adjustment holes 121 are provided on the four sides of the rectangular outer ring portion 12, and the two first adjustment holes 121 on each side are symmetrical relative to the center position of the side, so as to ensure that the outer edge of the package is adsorbed and improve the stability of the adsorption of the package. In this embodiment, a first strip hole 25 is provided on the first adjustment block 21. The first strip hole 25 is in the shape of a long strip, and the first strip hole 25 and the first adjustment hole 121 at least partially overlap, so that the bolt can pass through, and the first adjustment block 21 is clamped and fixed at a preset position of the outer ring portion 12 by the bolt, and the adjustment operation is simple and convenient. The extension direction of the first strip hole 25 is perpendicular to the extension direction of the first adjustment hole 121, so as to ensure that the first adjustment hole 121 adjusts the position of the first air nozzle 22 in the circumferential direction of the outer ring portion 12, and the first strip hole 25 adjusts the position of the first air nozzle 22 in the radial direction of the outer ring portion 12, so as to realize the full-range adjustment of the first air nozzle 22, and ensure the adaptability to the adsorption of packages with different outer edge shapes and different sizes.

[0046] Further, the connecting portion 13 is in the shape of an elongated strip, one end of the connecting portion 13 is connected to the inner ring portion 11, and the other end of the connecting portion 13 is connected to the outer ring portion 12. A second adjustment hole 131 is provided on the connecting portion 13. The second adjustment hole 131 is in the shape of an elongated strip and extends in the same direction as the connecting portion 13, and the second adjustment block 31 is movably connected to the connecting portion 13 through the second adjustment hole 131. In this embodiment, a plurality of connecting portions 13 are provided, and each connecting portion 13 is evenly spaced around the inner ring portion 11, and the number of second adsorption components 30 and connecting portions 13 is the same, and they are respectively provided in one-to-one correspondence.

[0047] Furthermore, each second air nozzle 32 is arranged on one side of each connecting portion 13 in a clockwise or counterclockwise direction relative to the inner ring portion 11, and the connecting portion 13 is evenly spaced around the inner ring portion 11 to ensure uniform adsorption of the package and improve the stability of adsorption of the package. In this embodiment, the second adjustment block 31 is in the shape of a long strip, and a second strip hole 35 is provided on the second adjustment block 31. The second strip hole 35 is in the shape of a long strip and extends in the same direction as the second adjustment block 31. The second strip hole 35 at least partially overlaps with the second adjustment hole 131 for bolts to pass through. The second adjustment block 31 is clamped and fixed at a preset position of the connecting portion 13 by bolts, and the adjustment operation is simple and convenient. The radial position of the second air nozzle 32 in the connecting portion 13 is adjusted through the second adjustment hole 131, and the circumferential position of the second air nozzle 32 in the connecting portion 13 is adjusted through the second strip hole 35, so that the second air nozzle 32 can be adjusted in all directions, ensuring that packages of different specifications and sizes can be adsorbed and fixed, thereby improving the adaptability of the grasping mechanism 100.

[0048] Furthermore, the first air nozzle 22, the second air nozzle 32 and the third air nozzle 42 are arranged on the same side of the mounting plate 10, and the first air nozzle 22, the second air nozzle 32 and the third air nozzle 42 are arranged in the same direction. By connecting the first air nozzle 22, the second air nozzle 32 and the third air nozzle 42 to an external negative pressure suction device, a negative pressure cavity is formed inside to perform negative pressure adsorption on the package.

[0049] Furthermore, the grabbing mechanism 100 also includes a grabbing drive 50. The grabbing drive 50 is connected to the inner ring portion 11, and the grabbing drive 50 is arranged on the side of the mounting plate 10 away from the suction of the packages by the air nozzles, and the grabbing drive 50 is used to drive the mounting plate 10 to move in a direction perpendicular to the extension plane where the mounting plate 10 is located, so as to achieve the bonding of the suction-grabbed packages with the glue-coated packages. It can be understood that the grabbing drive 50 is one of a screw mechanism, a cylinder, a hydraulic cylinder, a gear rack mechanism, a linear motor or a belt mechanism. The specific structure of the grabbing drive 50 is not limited here, and it is sufficient to ensure that the grabbing drive 50 can drive the mounting frame to move in a direction perpendicular to the extension plane. In this embodiment, the grabbing drive 50 is a screw mechanism.

[0050] In summary, the embodiment of the utility model provides a gripping mechanism 100, which has the following beneficial effects:

[0051] By configuring the mounting disk 10 so that the outer ring portion 12 is arranged around the outside of the inner ring portion 11, and then the connecting portion 13 is connected between the inner ring portion 11 and the outer ring portion 12, the first adjusting block 21 adjusts the setting position of the first air nozzle 22 along the circumferential direction of the outer ring portion 12, and the second adjusting block 31 adjusts the setting position of the second air nozzle 32 along the radial direction of the connecting portion 13. The first air nozzle 22 and the second air nozzle 32 cooperate to adsorb and grasp the package, realizing all-round adjustment in the circumferential and radial directions to meet the grasping requirements of packages of different structures and sizes, thereby improving the adaptability of use. When grasping packages of different specifications, there is no need to replace the mounting disk 10, thereby reducing the processing cost and improving the processing efficiency.

[0052] By setting two first adjustment holes 121 on the four sides of the outer ring portion 12, and the two first adjustment holes 121 on each side are symmetrical with respect to the center position of the side, and then setting the first adsorption components 20 with the same number as the first adjustment holes 121, and setting them one by one, it is ensured that the grasping mechanism 100 can grasp the circumferential adsorption of the outer edge of the package uniformly and the reliability of the grasping is ensured.

[0053] By arranging the connecting parts 13 around the inner ring part 11 at uniform intervals, the number of the second adsorption components 30 and the connecting parts 13 is the same, and they are arranged one by one, and then the second air nozzle 32 of each second adsorption component 30 is arranged on one side of each connecting part 13 in a clockwise or counterclockwise direction relative to the inner ring part 11, it is ensured that the grasping mechanism 100 adsorbs the package uniformly in the radial direction, and the reliability of grasping is further improved.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A gripping mechanism, characterized in that: include: A mounting plate, the mounting plate comprising an inner ring portion, an outer ring portion and a connecting portion; the inner ring portion is in a straight plate shape, the outer ring portion is in an annular straight plate shape, the outer ring portion is arranged around the outer side of the inner ring portion, and the connecting portion is arranged between the inner ring portion and the outer ring portion; A first adsorption component, the first adsorption component includes a first adjustment block and a first air nozzle; the first adjustment block is movably connected to the outer ring portion, the first adjustment block extends from the outer ring portion toward the inner ring portion, and the first air nozzle is arranged at one end of the first adjustment block close to the inner ring portion; and A second adsorption component, the second adsorption component comprises a second adjustment block and a second air nozzle; one end of the second adjustment block is movably connected to the connecting portion, the other end of the second adjustment block is arranged at one side of the connecting portion, and the second air nozzle is arranged at a side of the second adjustment block away from the connecting portion; The first adjusting block adjusts the setting position of the first gas nozzle along the circumferential direction of the outer ring portion, and the second adjusting block adjusts the setting position of the second gas nozzle along the radial direction of the connecting portion.

2. The gripping mechanism according to claim 1, characterized in that: The outer ring portion is provided with a first adjustment hole; the first adjustment hole is in a long strip shape and extends along the periphery of the outer ring portion, and the first adjustment block is movably connected to the outer ring portion through the first adjustment hole.

3. The gripping mechanism according to claim 2, characterized in that: There are a plurality of first adjustment holes, and the first adjustment holes are arranged at intervals along the outer ring portion; the number of the first adsorption components is the same as the number of the first adjustment holes, and they are arranged one-to-one correspondingly.

4. The gripping mechanism according to claim 3, characterized in that: The outer ring portion is a rectangular ring structure, and two first adjustment holes are arranged on four sides of the outer ring portion, and the two first adjustment holes on each side are symmetrical with respect to the center position of the side.

5. The gripping mechanism according to claim 2, characterized in that: The first adjusting block is provided with a first strip-shaped hole; the first strip-shaped hole is in a long strip shape, the first strip-shaped hole at least partially overlaps with the first adjusting hole, and an extending direction of the first strip-shaped hole is perpendicular to the first adjusting hole.

6. The gripping mechanism according to claim 1, characterized in that: The connecting portion is in the shape of an elongated strip, and a second adjusting hole is arranged on the connecting portion. The second adjusting hole is in the shape of an elongated strip and extends in the same direction as the connecting portion, and the second adjusting block is movably connected to the connecting portion through the second adjusting hole.

7. The gripping mechanism according to claim 6, characterized in that: There are multiple connecting parts, and each of the connecting parts is evenly spaced around the inner ring part. The number of the second adsorption components is the same as that of the connecting parts, and they are respectively arranged in one-to-one correspondence.

8. The gripping mechanism according to claim 7, characterized in that: Each of the second air nozzles is arranged on one side of each of the connecting portions along a clockwise or counterclockwise direction relative to the inner ring portion.

9. The gripping mechanism according to claim 1, characterized in that: The inner ring portion is in the shape of a rectangular straight plate, and a central hole is opened at the center of the inner ring portion; third adjustment holes are opened on two opposite sides of the inner ring portion; The gripping mechanism also includes a third adsorption component; the third adsorption component includes a third adjustment block and a third air nozzle, the third adjustment block is movably connected to the inner ring portion through the third adjustment hole, the third adjustment block extends from the inner ring portion toward the inner direction of the middle hole, and the third air nozzle is arranged in the middle hole.

10. The gripping mechanism according to claim 1, characterized in that: The grabbing mechanism also includes a grabbing driving member; the grabbing driving member is connected to the inner ring portion, and the grabbing driving member is used to drive the mounting plate to move in a direction perpendicular to the extension plane where the mounting plate is located.

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