Transfer tool

By designing an adjustable transport workpiece, including mounting brackets, pin cylinders and moving mechanisms, the problem of the existing technology being difficult to apply to luggage lids of various shapes is solved, and the transport effect with high clamping stability and wide application range is achieved.

CN222608590UActive Publication Date: 2025-03-14GUANGZHOU AUTOMOBILE GROUP CO LTD
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Patent Information

Application Number
CN202420447607.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-07
Publication Date
2025-03-14
Estimated Expiration
2034-03-07

AI Technical Summary

Technical Problem

Existing robot hand-held equipment is difficult to be suitable for transporting luggage lids of many different shapes, resulting in insufficient clamping stability.

Method used

A transfer worker including a mounting bracket, a first pin cylinder, a first moving mechanism, a jaw mechanism and a second moving mechanism is designed, and the suitcase cover of different models and specifications is adapted to flexibly adjust the relative position of the jaw mechanism and the first pin cylinder.

Benefits of technology

It realizes stable transport of luggage lids of various models and specifications, improving the scope of application and clamping stability of transport workpieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a transfer tool. The transfer tool comprises a mounting bracket, a base and a base, the first pin cylinder is movably arranged on the mounting bracket through the first moving mechanism; the clamping jaw mechanism is movably arranged on the mounting support through the second moving mechanism and located on the corresponding side, on the mounting support, of the first pin air cylinder, and the first pin air cylinder is suitable for forming a clamping position together with the clamping jaw mechanism; wherein the clamping jaw mechanism comprises a first clamping part, a second clamping part, a first clamping head and a second clamping head, the first clamping head is rotatably arranged on the side face, facing the second clamping part, of the first clamping part, the second clamping head is rotatably arranged on the side face, facing the first clamping part, of the second clamping part, and clamping force is jointly formed by the second clamping head and the first clamping head. According to the transferring tool, the transferring tool can be suitable for transferring the workpieces to be transferred of various types and specifications, and the application range is wide.
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Description

Technical Field

[0001] The utility model relates to the technical field of vehicle production, in particular to a transfer tool. Background Art

[0002] During the production and assembly process of vehicles, the transfer of parts on the automated line for automobile trunk lids is completed by robot grippers. In order to realize the transfer function, corresponding grippers need to be designed. Different models and different parts have corresponding grippers and placement racks. The more models introduced into the production line, the more grippers and placement racks there are. At the same time, the existing form of robot grippers positions and clamps the parts through clamping devices. However, due to the large differences in the shapes of trunk lids of different models, the position and shape of the clamping point surface are difficult to keep consistent. Therefore, the existing form of robot grippers cannot be applied to the transfer of trunk lids of various shapes. Utility Model Content

[0003] The utility model provides a transfer tool, which has the advantages of wide application range and high clamping stability.

[0004] According to the transfer tooling of the embodiment of the utility model, it includes: a mounting bracket; a first pin cylinder and a first moving mechanism, the first pin cylinder is movably arranged on the mounting bracket through the first moving mechanism; a clamping mechanism and a second moving mechanism, the clamping mechanism is movably arranged on the mounting bracket through the second moving mechanism and is located on the corresponding side of the first pin cylinder on the mounting bracket, the first pin cylinder is suitable for forming a clamping position together with the clamping mechanism; wherein the clamping mechanism includes a first clamping portion, a second clamping portion, a first chuck and a second chuck, the first chuck is rotatably arranged on the side of the first clamping portion facing the second clamping portion, the second chuck is rotatably arranged on the side of the second clamping portion facing the first clamping portion and forms a clamping force together with the first chuck.

[0005] According to the transfer tooling of the embodiment of the utility model, the relative position relationship between the first pin cylinder and the clamping mechanism in the first direction and the second direction can be flexibly adjusted through the first moving mechanism and the second moving mechanism, so that the transfer tooling can be suitable for the transfer of workpieces of various models and specifications to be transferred, which is beneficial to improving the application scope of the transfer tooling.

[0006] According to some embodiments of the present invention, the clamping jaw mechanism further includes an opening and closing mechanism, and the opening and closing mechanism is used to drive the first clamping portion and the second clamping portion to move toward or away from each other.

[0007] According to some embodiments of the present invention, both the first clamp and the second clamp are flexible parts.

[0008] According to some embodiments of the present invention, the end surface of the first chuck facing the second chuck is formed as a first contact surface, the end surface of the second chuck facing the first chuck is formed as a second contact surface, and the first contact surface and the second contact surface are both arc surfaces.

[0009] According to some embodiments of the utility model, any one of the first pin cylinder and the clamping mechanism is movable relative to the mounting bracket along a first direction and a second direction, and the other is movable relative to the mounting bracket along the first direction and / or the second direction, and the first direction is perpendicular to the second direction.

[0010] According to some embodiments of the utility model, the transfer tool also includes a second pin cylinder, the second pin cylinder is arranged on the mounting bracket, and the first pin cylinder and the second pin cylinder are suitable for forming a clamping position together with the clamping mechanism.

[0011] According to some embodiments of the present invention, the second pin cylinder and the first pin cylinder are located on opposite sides of the mounting bracket in the first direction.

[0012] According to some embodiments of the utility model, the first moving mechanism includes a first slide rail, a first sliding member and a first driving member, the first slide rail is arranged on the mounting bracket and extends along the first direction, the first driving member is used to drive the first sliding member to slide back and forth on the first slide rail along the first direction, and the first pin cylinder is arranged on the first sliding member.

[0013] According to some embodiments of the utility model, the second moving mechanism includes a second slide rail, a second sliding member, a second driving member, a third slide rail, a third sliding member and a third driving member. The second slide rail is arranged on the mounting bracket and extends along the second direction. The second driving member is used to drive the second sliding member to slide back and forth on the second slide rail along the second direction. The third slide rail is arranged on the second sliding member. The third driving member is used to drive the third sliding member to slide back and forth on the third slide rail along the first direction. The first direction is perpendicular to the second direction. The clamping mechanism is arranged on the third sliding member.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a transfer tool according to an embodiment of the utility model;

[0016] Figure 2It is a bottom side view of the transfer tool according to an embodiment of the utility model;

[0017] Figure 3 It is a left view of the transfer tool according to an embodiment of the utility model.

[0018] Reference numerals:

[0019] Transfer tooling 100;

[0020] Mounting bracket 1;

[0021] First pin cylinder 2;

[0022] First moving mechanism 3; first slide rail 31; first sliding member 32;

[0023] Clamping mechanism 4; first clamping portion 41; second clamping portion 42; opening and closing mechanism 43; first clamping head 45; first contact surface 451; second clamping head 46; second contact surface 461;

[0024] The second moving mechanism 5; the second slide rail 51; the second sliding member 52; the third slide rail 53; the third sliding member 54;

[0025] Second pin cylinder 6;

[0026] The first direction e1; the second direction e2; the third direction e3. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0029] The following describes a transfer tool 100 according to an embodiment of the present invention with reference to the accompanying drawings.

[0030] like Figure 1-Figure 3As shown, the transfer tool 100 according to the embodiment of the utility model comprises: a mounting bracket 1, a first pin cylinder 2, a first moving mechanism 3, a clamping mechanism 4 and a second moving mechanism 5, wherein the first pin cylinder 2 is movably arranged on the mounting bracket 1 through the first moving mechanism 3. When the workpiece is transferred by the transfer tool 100, the first pin cylinder 2 can be extended and retracted to realize the insertion and withdrawal of the first pin cylinder 2 from the matching hole on the workpiece.

[0031] The clamping mechanism 4 is movably arranged on the mounting bracket 1 through the second moving mechanism 5 and is located on the side corresponding to the first pin cylinder 2 on the mounting bracket 1. The first pin cylinder 2 is suitable for forming a clamping position together with the clamping mechanism 4. That is to say, the first pin cylinder 2 and the clamping mechanism 4 are located on the same side of the mounting bracket 1, so that the first pin cylinder 2 can form a clamping space with the clamping mechanism 4, so that the transfer tool 100 can fix the workpiece to be transferred. The first pin cylinder 2 and the clamping mechanism 4 clamp and fix the workpiece together, so that the workpiece can be firmly fixed on the transfer tool 100, which can improve the stability of the transfer tool 100 in transferring the workpiece. In addition, the relative position relationship between the first pin cylinder 2 and the clamping mechanism 4 can be flexibly adjusted through the first moving mechanism 3 and the second moving mechanism 5, so that the transfer tool 100 can be applicable to the transfer of workpieces of various models and specifications to be transferred, which is conducive to improving the scope of application of the transfer tool 100.

[0032] The clamping mechanism 4 includes a first clamping portion 41, a second clamping portion 42, a first clamp 45 and a second clamp 46. The first clamp 45 is rotatably disposed on the side of the first clamping portion 41 facing the second clamping portion 42, and the second clamp 46 is rotatably disposed on the side of the second clamping portion 42 facing the first clamping portion 41 and forms a clamping force together with the first clamp 45. Thus, through the rotation of the first clamp 45 relative to the first clamping portion 41 and the rotation of the second clamp 46 relative to the second clamping portion 42, the first clamp 45 and the second clamp 46 can flexibly adapt to a variety of clamping areas with different surface shapes, thereby reducing the requirements of the clamping mechanism 4 on the surface shape of the clamping area, which is conducive to improving the application range of the clamping mechanism 4.

[0033] According to the transfer tool 100 of the embodiment of the utility model, the relative position relationship between the first pin cylinder 2 and the clamping mechanism 4 can be flexibly adjusted through the first moving mechanism 3 and the second moving mechanism 5, so that the transfer tool 100 can be applicable to the transfer of workpieces of various models and specifications to be transferred. By rotating the first chuck 45 relative to the first clamping part 41 and the second chuck 46 relative to the second clamping part 42, the first chuck 45 and the second chuck 46 can flexibly adapt to various clamping areas with different surface shapes, which is conducive to improving the application range of the transfer tool 100

[0034] According to some embodiments of the utility model, the clamping mechanism 4 further includes an opening and closing mechanism 43, and the opening and closing mechanism 43 is used to drive the first clamping part 41 and the second clamping part 42 to move in a direction close to or away from each other. That is, the first clamping part 41 and the second clamping part 42 can be driven to move in a direction away from each other by the opening and closing mechanism 43, so as to gradually increase the interval between the first clamp 45 and the second clamp 46, so as to facilitate the clamping area to enter between the first clamp 45 and the second clamp 46, and then the first clamping part 41 and the second clamping part 42 can be driven to move in a direction close to each other by the opening and closing mechanism 43, so as to gradually reduce the interval between the first clamp 41 and the second clamp 42, until the first clamp 45 and the second clamp 46 jointly clamp the clamping area on the workpiece, thereby realizing the clamping and fixing of the clamping area by the clamping mechanism 4. As a result, the difficulty of the clamping and fixing of the clamping area by the clamping mechanism 4 can be well reduced, and at the same time, the clamping mechanism 4 can flexibly adapt to clamping areas of different thicknesses, which is conducive to improving the scope of application of the transfer tooling 100.

[0035] According to some embodiments of the utility model, the first chuck 45 and the second chuck 46 are both flexible parts. That is to say, the first chuck 45 and the second chuck 46 are both relatively soft and can produce a certain elastic deformation. Therefore, when the first clamping portion 41 and the second clamping portion 42 are close to each other, after the first chuck 45 and the second chuck 46 contact the sides of the clamping area, the first chuck 45 and the second chuck 46 can fit more closely with the clamping area through flexible deformation, so that the clamping mechanism 4 can adapt to a variety of clamping areas with different surface shapes through the first chuck 45 and the second chuck 46, which is conducive to further improving the scope of use of the clamping mechanism 4. In addition, it can be better to avoid the first clamping portion 41 and the second clamping portion 42 from hard contact with the clamping area, so as to avoid the clamping mechanism 4 from scratching the workpiece to be transported.

[0036] According to some embodiments of the present invention, the end surface of the first chuck 45 facing the second chuck 46 is formed as a first contact surface 451, and the end surface of the second chuck 46 facing the first chuck 45 is formed as a second contact surface 461, and both the first contact surface 451 and the second contact surface 461 are arc surfaces. Thus, the first chuck 45 and the second chuck 46 can both form point contact with the clamping area of ​​the workpiece to be transported, which can improve the flexibility of the first chuck 45 and the second chuck 46 in adapting to different surface shapes of the clamping area.

[0037] According to some embodiments of the utility model, any one of the first pin cylinder 2 and the clamping mechanism 4 is movable relative to the mounting bracket 1 along the first direction e1 and the second direction e2, and the other is movable relative to the mounting bracket 1 along the first direction e1 and / or the second direction e2, and the first direction e1 is perpendicular to the second direction e2. In other words, the first moving mechanism 3 can drive the first pin cylinder 2 to move relative to the mounting bracket 1 along the first direction e1 and the second direction e2, and the second moving mechanism 5 can drive the clamping mechanism 4 to move relative to the mounting bracket 1 along the first direction e1; the first moving mechanism 3 can drive the first pin cylinder 2 to move relative to the mounting bracket 1 along the first direction e1 and the second direction e2, and the second moving mechanism 5 can drive the clamping mechanism 4 to move relative to the mounting bracket 1 along the second direction e2; the first moving mechanism 3 can drive the first pin cylinder 2 to move relative to the mounting bracket 1 along the first direction e1, and the second moving mechanism 5 can drive the clamping mechanism 4 to move relative to the mounting bracket 1 along the first direction e1 and the second direction e2; the first moving mechanism 3 can also drive the first pin cylinder 2 to move relative to the mounting bracket 1 along the second direction e2, and the second moving mechanism 5 can drive the clamping mechanism 4 to move relative to the mounting bracket 1 along the first direction e1 and the second direction e2; the first moving mechanism 3 can drive the first pin cylinder 2 to move relative to the mounting bracket 1 along the first direction e1 and the second direction e2, and the second moving mechanism 5 can drive the clamping mechanism 4 to move relative to the mounting bracket 1 along the first direction e1 and the second direction e2, and no specific limitation is made here.

[0038] Therefore, the relative position relationship between the first pin cylinder 2 and the clamping mechanism 4 in the first direction e1 and the second direction e2 can be flexibly adjusted through the first moving mechanism 3 and the second moving mechanism 5, so that the transfer tooling 100 can be suitable for the transfer of workpieces of various models and specifications to be transferred, which is beneficial to improving the scope of application of the transfer tooling 100.

[0039] According to some embodiments of the utility model, the transfer tool 100 further includes a second pin cylinder 6, and the first pin cylinder 2 and the second pin cylinder 6 are suitable for forming a clamping position together with the clamp mechanism 4. When the workpiece is transferred by the transfer tool 100, the second pin cylinder 6 can be extended and retracted to achieve the insertion and withdrawal of the second pin cylinder 6 from the matching hole on the workpiece.

[0040] It can be understood that the transfer tool 100 is used to transfer the workpiece to be transferred, and a plurality of clamping points are usually formed on the workpiece to be transferred. The first pin cylinder 2 and the second pin cylinder 3 can be extended into the corresponding matching holes and clamped to form clamping points in the form of a combination of holes and surfaces. The clamping points can also be in surface contact with the transfer tool 100, such as the clamping mechanism 4 can clamp the clamping area surface formed by the workpiece to be transferred to form a surface clamping fixation.

[0041] Therefore, by enabling any one of the first pin cylinder 2 and the clamping mechanism 4 to be movable relative to the mounting bracket 1 along the first direction e1 and the second direction e2, and the other one to be movable relative to the mounting bracket 1 along the first direction e1, the flexibility of adjusting the relative positions of the first pin cylinder 2, the second pin cylinder 3 and the clamping mechanism 4 can be improved. Thus, the transfer tool 100 can flexibly adjust the relative positions between the first pin cylinder 2, the second pin cylinder 6 and the clamping mechanism 4 according to the distribution of the clamping points of the workpiece to be transferred to ensure that the first pin cylinder 2, the second pin cylinder 6 and the clamping mechanism 4 can respectively cooperate with the corresponding clamping points. In addition, by clamping and fixing the workpiece to be transferred together with the first pin cylinder 2, the second pin cylinder 6 and the clamping mechanism 4, the clamping position of the transfer tool 100 on the workpiece to be transferred can be improved, which is conducive to improving the stability of the transfer tool 100 in transferring the workpiece to be transferred.

[0042] The following is an example in which the first moving mechanism 3 is used to drive the first pin cylinder 2 to reciprocate along the first direction e1 relative to the mounting bracket 1, and the second moving mechanism 5 is used to drive the clamping mechanism 4 to reciprocate along the first direction e1 and the second direction e2 relative to the mounting bracket 1, wherein first matching holes and second matching holes extending along the third direction e3 and arranged at intervals along the first direction e1 are formed on the inner plate of the car trunk lid, and a third matching hole is located on the same side of the first matching hole and the second matching hole in the second direction e2, and the outer peripheral edge of the third matching hole away from the first matching hole and the second matching hole is formed as a clamping area of ​​the clamping claw, wherein the third direction e1 is perpendicular to the first direction e1 and perpendicular to the second direction e2.

[0043] Specifically, when the trunk lid of a car is transported by the transport tool 100, the clamping area is first clamped and fixed by the clamping mechanism 4. At this time, the first pin cylinder 2 and the second pin cylinder 6 are retracted along the third direction e3 in the direction away from the trunk lid of the car to avoid contact and friction between the first pin cylinder 2 and the second pin cylinder 6 and the inner panel of the trunk lid of the car when the clamping mechanism 4 cooperates with the clamping area. After the clamping area is clamped and fixed by the clamping mechanism 4, the second moving mechanism 5 drives the clamping mechanism 4 to move relative to the mounting bracket 1 along the first direction e1 and the second direction e2, and the first moving mechanism 3 drives the first pin cylinder 2 to move relative to the mounting bracket 1 along the first direction e1, so that the first pin cylinder 2 is opposite to the second matching hole along the third direction e3 and the second pin cylinder 6 can be opposite to the first matching hole along the third direction e3, and the first pin cylinder 2 is controlled to extend into the second matching hole and clamp the sheet metal part of the car trunk cover located at the outer peripheral edge of the second matching hole, and the second pin cylinder 6 is controlled to extend into the first matching hole and clamp the sheet metal part of the car trunk cover located at the outer peripheral edge of the first matching hole, thereby completing the transfer tooling 100 to fix the car trunk cover to ensure the stability of the subsequent transfer of the car trunk cover.

[0044] According to some embodiments of the utility model, the second pin cylinder 6 and the first pin cylinder 2 are located on opposite sides of the mounting bracket 1 in the first direction e1. Thus, the difficulty of aligning the second pin cylinder 6 and the first pin cylinder 2 with the clamping points on the workpiece to be transported can be reduced, which is conducive to improving the transport efficiency.

[0045] According to some embodiments of the utility model, the first moving mechanism 2 includes a first slide rail 31, a first sliding member 32, and a second driving member, the first slide rail 31 is provided on the mounting bracket 1 and extends along the first direction e1, the first driving member is used to drive the first sliding member 32 to slide back and forth along the first direction e1 on the first slide rail 31, and the first pin cylinder 2 is provided on the first sliding member 32. Thus, by driving the first sliding member 32 to slide back and forth along the first direction e1 on the first slide rail 31 through the first driving member, the first pin cylinder 2 can be driven to move relative to the mounting bracket 1 along the first direction e1, so as to adjust the distance between the first pin cylinder 2 and the second pin cylinder 6 and the clamp mechanism 4 in the first direction e1.

[0046] According to some embodiments of the utility model, the second moving mechanism 5 includes a second slide rail 51, a second sliding member 52, a second driving member, a third slide rail 53, a third sliding member 54 and a third driving member. The second slide rail 51 is arranged on the mounting bracket 1 and extends along the second direction e2. The second driving member is used to drive the second sliding member 52 to slide back and forth on the second slide rail 51 along the second direction e2. The third slide rail 53 is arranged on the second sliding member 52. The third driving member is used to drive the third sliding member 54 to slide back and forth on the third slide rail 53 along the first direction e1. The first direction e1 is perpendicular to the second direction e2. The clamping mechanism 4 is arranged on the third sliding member 54.

[0047] That is, the third driving member can drive the third sliding member 54 to slide on the third slide rail 53 along the first direction e1, thereby driving the clamping mechanism 4 on the third sliding member 54 to move relative to the mounting bracket 1 along the first direction e1 to adjust the distance between the clamping mechanism 4 and the second pin cylinder 6 and the first pin cylinder 2 in the first direction e1. The second driving member can drive the second sliding member 52 to slide on the second slide rail 51 along the second direction e2, thereby driving the third slide rail 53 on the second sliding member 52 to move relative to the mounting bracket 1 along the second direction e2, and further driving the clamping mechanism 4 to move relative to the mounting bracket 1 along the second direction e2 to adjust the distance between the clamping mechanism 4 and the second pin cylinder 6 and the first pin cylinder 2 in the second direction e2.

[0048] In a specific example, the second slide rail 51 extends along the second direction e2, the second sliding member 52 is a slider, the second slide rail 51 is provided with two rails located on both sides of the mounting bracket 1 in the first direction e1, the third slide rail 53 extends along the first direction e1, and the two ends of the third slide rail 53 are respectively slidably connected to the two second slide rails 51 through the second sliding member 52, and the third sliding member 54 is a slider.

[0049] 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A transfer tool, characterized in that: include: Mounting bracket; a first pin cylinder and a first moving mechanism, wherein the first pin cylinder is movably disposed on the mounting bracket via the first moving mechanism; A clamping mechanism and a second moving mechanism, wherein the clamping mechanism is movably arranged on the mounting bracket through the second moving mechanism and is located on a side corresponding to the first pin cylinder on the mounting bracket, and the first pin cylinder is suitable for forming a clamping position together with the clamping mechanism; wherein, The clamping mechanism includes a first clamping portion, a second clamping portion, a first chuck and a second chuck. The first chuck is rotatably disposed on the side of the first clamping portion facing the second clamping portion, and the second chuck is rotatably disposed on the side of the second clamping portion facing the first clamping portion and forms a clamping force together with the first chuck.

2. The transfer tool according to claim 1, characterized in that: The clamping mechanism further includes an opening and closing mechanism, and the opening and closing mechanism is used to drive the first clamping part and the second clamping part to move toward or away from each other.

3. The transfer tool according to claim 1, characterized in that: The first clamp and the second clamp are both flexible members.

4. The transfer tool according to claim 3, characterized in that: The end surface of the first chuck facing the second chuck is formed as a first contact surface, and the end surface of the second chuck facing the first chuck is formed as a second contact surface. Both the first contact surface and the second contact surface are arc surfaces.

5. The transfer tool according to claim 1 or 4, characterized in that: Any one of the first pin cylinder and the clamping mechanism is movable relative to the mounting bracket along a first direction and a second direction, and the other is movable relative to the mounting bracket along the first direction and / or the second direction, and the first direction is perpendicular to the second direction.

6. The transfer tool according to claim 1, characterized in that: It also includes a second pin cylinder, which is arranged on the mounting bracket. The first pin cylinder and the second pin cylinder are suitable for forming a clamping position together with the clamping claw mechanism.

7. The transfer tool according to claim 6, characterized in that: The second pin cylinder and the first pin cylinder are located on opposite sides of the mounting bracket in the first direction.

8. The transfer tool according to claim 1, characterized in that: The first moving mechanism includes a first slide rail, a first sliding member and a first driving member. The first slide rail is arranged on the mounting bracket and extends along the first direction. The first driving member is used to drive the first sliding member to slide back and forth on the first slide rail along the first direction. The first pin cylinder is arranged on the first sliding member.

9. The transfer tool according to claim 1, characterized in that: The second moving mechanism includes a second slide rail, a second sliding member, a second driving member, a third slide rail, a third sliding member and a third driving member. The second slide rail is arranged on the mounting bracket and extends along the second direction. The second driving member is used to drive the second sliding member to slide back and forth on the second slide rail along the second direction. The third slide rail is arranged on the second sliding member. The third driving member is used to drive the third sliding member to slide back and forth on the third slide rail along the first direction. The first direction is perpendicular to the second direction. The clamping mechanism is arranged on the third sliding member.