Opening and closing type clamping tool

Abstract

The utility model discloses an opening and closing type clamping tool which comprises a clamping base, a clamping assembly movably arranged on the clamping base and a driving mechanism installed on the clamping base. The clamping assembly is arranged at the output end of the driving mechanism and comprises a clamping piece capable of being unfolded or folded towards the clamped part of the clamped object and / or a pressing piece capable of moving in a reciprocating mode in the power output direction of the driving mechanism. By means of linkage operation of the clamping piece and the pressing piece and combination of the ingenious design of the clamping base, opening / closing of the clamping piece and pressing / loosening of the pressing piece are synchronously achieved, and the rapid clamping action on a clamped object is completed; meanwhile, the clamping piece and the pressing piece work cooperatively through the unified driving mechanism, it is ensured that in the clamping process, the actions of the clamping piece and the pressing piece are kept highly consistent, the driving error is effectively reduced, and the clamping precision is improved; in addition, clamped objects in different shapes can be taken into consideration, operation can be carried out as long as the clamped parts of the clamped objects can enter the clamping cavity and are limited, and the universality of the tool is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering equipment technology, and in particular to an opening and closing clamping fixture. Background Technology

[0002] With the rapid development of marine new energy development, offshore wind power, as one of the new energy sources with the greatest potential for large-scale development and commercial growth, has seen rapid development in recent years as a form of clean energy, with its development scope gradually expanding from shallow and near-shore waters to deep seas. As the distance from shore increases, the cost of towing deep-sea vessels also rises, making offshore assembly and deployment a common approach. This involves disassembling wind turbines into multiple modules, such as blades, nacelles, and towers, which are then assembled on wind turbine installation vessels. Wind turbine assembly often involves fixing the wind turbine module components or the base used to hold them. Typically, pre-set columnar structures are used to limit the movement of the module components or base, and then clamping and fixing are achieved using mechanical grippers, robotic arms, and other auxiliary fixing fixtures before transfer or assembly processes are carried out. Existing clamping arms and other clamping fixtures have complex structures and occupy a large space. Furthermore, when clamping and fixing columnar structures, multiple robotic arms are typically required in staggered positions to prevent circumferential or axial slippage during clamping, further increasing the size of the clamping fixture and requiring more power. In addition, the complexity of the marine environment places higher demands on the design of clamping fixtures, potentially leading to unstable clamping or equipment damage, thus affecting operational safety and progress.

[0003] Therefore, further research and development is needed to solve the problems existing in the above-mentioned technologies. Utility Model Content

[0004] Therefore, in order to solve the problems existing in the prior art, the purpose of this utility model is to provide an opening and closing clamping fixture to ensure that the clamped object is not easily detached during the clamping process, thereby improving the safety of the operation, especially in unstable environments such as at sea.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An opening and closing clamping fixture includes a clamping base, a clamping assembly movably disposed on the clamping base, and a drive mechanism mounted on the clamping base for driving the clamping assembly to clamp or release an object; the clamping assembly is disposed at the output end of the drive mechanism and includes a clamping member that can open or close toward the clamped portion of the object and / or a pressing member that can reciprocate along the power output direction of the drive mechanism;

[0007] After the clamping member retracts toward the clamped object, it forms a clamping cavity that matches the contour of the clamped part of the clamped object, and the clamped part is confined in the clamping cavity; the pressing member can press the clamped part between itself and the clamping seat.

[0008] Furthermore, the output end of the drive mechanism is provided with a movable base plate that can reciprocate along the power output direction; two or more clamping members are symmetrically or equidistantly distributed on the movable base plate along its circumference; the end of each clamping member is provided with an inwardly extending clamping hook, which clamps the clamped part between the clamping member and the clamping seat.

[0009] Furthermore, a drive plate is fixedly provided on the power output end of the drive mechanism, and the drive plate is disposed through the middle of the movable base plate; two or more clamping members are symmetrically or equidistantly hinged on the drive plate along the circumference of the movable base plate, and are pulled together towards the center and clamped on the edge of the clamped part under the drive of the drive mechanism.

[0010] Furthermore, the clamping seat is provided with a movable slide groove adapted to the clamping member. The clamping member moves along the movable slide groove under the drive of the drive mechanism, thereby causing the clamping hook at its end to move toward the clamping seat and press the clamped part of the clamped object onto the clamping seat.

[0011] Furthermore, the clamping member includes a clamping arm formed by bending in one piece, one end of which is hinged to the edge of the movable base plate, and the other end is provided with the clamping hook; a first limiting shaft is provided on the movable slide groove, and a first bending portion is provided outward from the middle of the clamping arm. A strip-shaped first limiting hole is provided through the bending portion, and the limiting shaft passes through the first limiting hole. When the clamping member moves along the movable slide groove, the first limiting shaft can move along the first limiting hole.

[0012] Furthermore, the clamping member includes a clamping arm and a clamping block disposed at the end of the clamping arm. One end of the clamping arm is hinged to the drive plate, and the other end is provided with the clamping block. A second bent portion extends outward from the middle of the clamping arm. A clamping groove is provided on the clamping seat. A second limiting shaft is provided on the clamping groove. The second bent portion of the clamping arm is provided with a clamping hole that matches the second limiting shaft.

[0013] When the drive plate moves under the drive mechanism, the second limiting shaft rotates and engages with the clamping hole so that the clamping arm retracts toward the object being clamped.

[0014] Furthermore, the first bending portion is an obtuse-angle bending portion, and the inner side of the clamping arm is inclined from the first bending portion toward the moving base plate; the second bending portion is an L-shaped bending portion, and the inner surface of the clamping arm gradually inclines toward the clamping block.

[0015] Furthermore, the movable chute is provided with a guide slope that is adapted to the first bending portion.

[0016] Furthermore, the movable base plate has three outwardly extending hinge blocks distributed circumferentially, and the three clamping arms are respectively hinged to the ends of the corresponding hinge blocks via rotating shafts; the drive plate includes an upper drive plate and a lower drive plate spaced apart along the axial direction of the movable base plate, and the three clamping arms are respectively hinged between the upper drive plate and the lower drive plate.

[0017] Furthermore, the driving mechanism is a locking cylinder; the driving plate is fixed to the end of the telescopic rod of the locking cylinder and located in the middle of the movable base plate. The telescopic rod of the locking cylinder extends and retracts, causing the clamping member to open or close, and simultaneously causing the pressing member to move away from or closer to the clamped part.

[0018] Furthermore, the bottom of the clamping seat is provided with an adjusting cylinder; the adjusting cylinder is used to adjust the distance between the clamping seat and the clamping assembly and the object being clamped, and the clamping seat is fixed to the telescopic rod of the adjusting cylinder by a mounting plate.

[0019] Furthermore, the clamping seat has a receiving cavity for installing the clamping assembly and the driving mechanism. The opening of the receiving cavity is covered with a clamping cover, and the clamping cover has an avoidance notch adapted to the clamping arm.

[0020] Compared with the prior art, the beneficial effects of this utility model are at least in the following aspects:

[0021] 1) The opening and closing clamping fixture of this utility model achieves rapid clamping of the object by means of the linkage operation of the clamping and pressing parts, combined with the ingenious design of the clamping base, so as to realize the opening / closing of the clamping parts and the pressing / releasing of the pressing parts simultaneously; at the same time, the clamping and pressing parts work together through a unified drive mechanism to ensure that the movements of the two are highly consistent during the clamping process, avoiding the risk of clamping instability or object damage caused by uncoordinated operation; in addition, the highly linked clamping and pressing parts effectively reduce the drive error, avoid the problem of weak clamping or over-clamping caused by asynchrony, improve the clamping accuracy, and maintain consistency and reliability of clamping action even in high-load or unstable marine environments.

[0022] The clamping fixture of this utility model also takes into account the clamping needs of objects with different shapes. As long as the clamped part can enter the clamping cavity and be limited, it can be operated, which enhances the versatility of the fixture.

[0023] 2) Furthermore, the multiple clamping components of this utility model are hinged to the drive plate and can be retracted or opened towards the center. The clamping block is set at the end of the clamping arm and can make close contact with the edge of the clamped object. The multiple pressing components are also slidably limited by the moving groove of the clamping seat. Each pressing component has an inwardly extending pressing hook at its end to apply pressure to the clamped object. During the clamping process, the object is pressed tightly onto the clamping seat by hooking it. The action of the pressing components can effectively prevent the object from sliding during the clamping process, increasing the clamping effect and stability.

[0024] 3) The clamping fixture of this utility model consists of three basic modules: clamping base, clamping assembly, and driving mechanism. It can be adjusted or replaced according to the shape of different objects to be clamped, such as clamping hooks or clamping blocks of different shapes and sizes, to improve the versatility of the fixture.

[0025] In addition, the design of the clamping base is simple and ingenious, requiring no additional complex structure. It only needs to be designed with a receiving cavity that matches the clamping component, and slots or holes are opened on the clamping base to facilitate the opening or closing of the clamping component, so as to realize the clamping and locking operation of the clamping component, reducing the reliance on complex tools and facilitating daily maintenance and inspection. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the opening and closing clamping tool according to a preferred embodiment of the present invention;

[0027] Figure 2 This is a partial cross-sectional view of the overall structure of the opening and closing clamping tool according to a preferred embodiment of the present invention;

[0028] Figure 3 This is another partial cross-sectional view of the overall structure of the opening and closing clamping tool according to a preferred embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the overall structure of the clamping seat of the opening and closing clamping tool according to a preferred embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the assembly state of the clamping components and drive mechanism of the opening and closing clamping fixture according to a preferred embodiment of the present utility model.

[0031] Figure 6 This is a schematic diagram of the clamping operation direction of the opening and closing clamping fixture according to a preferred embodiment of the present invention;

[0032] Figure 7This is an exploded view of the structure of the opening and closing clamping fixture of this utility model as an application example.

[0033] In the picture:

[0034] 1. Clamping seat; 11. Moving slide; 111. Guide slope; 12. First limiting shaft; 13. Clamping slide; 14. Second limiting shaft; 15. Accommodating cavity; 2. Clamping assembly; 21. Clamping component; 211. Clamping arm; 2111. Second bending part; 2112. Clamping hole; 212. Clamping block; 22. Pressing component; 221. Pressing hook; 222. Pressing arm; 2221. First bending part; 2222. First limiting hole; 3. Drive mechanism; 4. Moving base plate; 41. Hinge block; 5. Drive plate; 51. Upper drive plate; 52. Lower drive plate; 6. Adjusting cylinder; 7. Mounting plate; 8. Clamping cover; 81. Clearance notch;

[0035] 10. The clamped part. Detailed Implementation

[0036] To facilitate understanding of this utility model, the technical solution and advantages of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific structure and features of this utility model are illustrated by way of example and should not constitute any limitation on this utility model. Furthermore, any of the technical features mentioned below (including implicit or disclosed features), as well as any technical features directly shown or implied in the figures, can be arbitrarily combined or deleted among these technical features to form other embodiments that may not be directly or indirectly mentioned in this utility model. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0037] In the description of this utility model, unless otherwise stated, all components used are conventional components in the prior art.

[0038] like Figure 1-7 As shown, this utility model provides an openable clamping fixture for use in offshore wind power installation operations. It can be used for end-clamping and fixing operations during the low-altitude transfer of cylindrical towers, or for clamping the ends of roughly circular or square objects such as wind turbine towers and blades with pre-set limiting grooves. Of course, this clamping fixture can also be applied to the rapid replacement of other offshore lifting tools, not limited to the wind turbine modules listed above, as long as the lifting end of the tool has pre-set cylindrical or square shapes that can be adapted to the clamped part connected to the clamping assembly of this utility model.

[0039] Specifically, this clamping fixture includes a clamping base 1, a clamping assembly 2 movably disposed on the clamping base 1, and a driving mechanism 3 mounted on the clamping base 1 for driving the clamping assembly 2 to clamp or release the clamped object; the clamping assembly 2 is disposed at the output end of the driving mechanism and includes a clamping member 21 that can open or close toward the clamped part 10 of the clamped object and / or a pressing member 22 that can reciprocate along the power output direction of the driving mechanism 3;

[0040] After the clamping member 21 retracts toward the clamped object, it forms a clamping cavity that matches the contour of the clamped part 10 of the clamped object, and the clamped part 10 is confined in the clamping cavity; the pressing member 22 can press the clamped part 10 between itself and the clamping seat 1.

[0041] In this embodiment, the object being held can be the aforementioned wind turbine assembly, or it can be as follows: Figure 7 The intermediate fixing fixtures or lifting tools shown for installing and placing the wind turbine generator components can be implemented as long as the clamped object has a clamped part 10 that can be adapted to the clamping cavity of this utility model.

[0042] In this embodiment, the clamping member can form a clamping cavity, thereby ensuring that the clamped object is firmly fixed and preventing slippage or loosening. This utility model can perform clamping operations by using a clamping member alone or a pressing member alone, depending on the size and shape of the clamped object. Alternatively, the clamping member and the pressing member can be designed to clamp together simultaneously to further ensure the clamping of the clamped object.

[0043] Preferably, the output end of the drive mechanism is provided with a movable base plate 4 that can reciprocate along the power output direction; two or more clamping members 22 are symmetrically or equidistantly distributed on the movable base plate 4 around the circumference; the end of the clamping member 22 is provided with an inwardly extending clamping hook 221, through which the clamped part 10 is clamped between the clamping member 22 and the clamping seat 1.

[0044] In this embodiment, due to the diversity of the objects being clamped, the structure of the clamping assembly can be adjusted as needed. For example, the clamping hook can be designed in other shapes to broaden its applicability.

[0045] Furthermore, in this embodiment, the design of the clamping cavity, through physical limiting, ensures that the clamped object is not easily dislodged during the clamping process, thereby improving the safety of the operation, especially in unstable environments such as at sea. At the same time, the relatively simplified structure makes the daily maintenance and inspection of the clamping fixture more convenient, reduces the need for custom tools, and lowers maintenance costs.

[0046] Preferably, a drive plate 5 is fixedly provided on the power output end of the drive mechanism, and the drive plate 5 is disposed through the middle of the movable base plate 4; two or more clamping members 21 are symmetrically or equidistantly hinged on the drive plate 5 along the circumference of the movable base plate 4, and are pulled together towards the center and clamped on the edge of the clamped part 10 under the drive of the drive mechanism.

[0047] In order to provide better support and facilitate the linkage operation of the clamping and pressing components, the clamping base 1 is provided with a movable slide groove 11 that is adapted to the pressing component 22. The pressing component 22 moves along the movable slide groove 11 under the drive of the driving mechanism, so that the pressing hook at its end moves toward the clamping base 1 and presses the clamped part 10 of the clamped object onto the clamping base 1.

[0048] In this embodiment, multiple clamping components are hinged to the drive plate and can retract or open towards the center. The clamping blocks are located at the ends of the clamping arms and can make close contact with the edges of the clamped object. Multiple pressing components are also slidably limited by the moving groove of the clamping seat. Each pressing component has an inwardly extending pressing hook at its end to apply pressure to the clamped object. During the clamping process, the object is pressed firmly onto the clamping seat by hooking it. The action of the pressing components can effectively prevent the object from sliding during the clamping process, increasing the clamping effect and stability.

[0049] The structure of the clamping member is further described below. The clamping member 22 includes a clamping arm 222 formed by bending. One end of the clamping arm 222 is hinged to the edge of the movable base plate 4, and the other end is provided with the clamping hook. The movable slide 11 is provided with a first limiting shaft 12. The middle part of the clamping arm 222 is provided with a first bending part 2221. A strip-shaped first limiting hole 2222 is provided through the bending part. The limiting shaft passes through the first limiting hole 2222. When the clamping member 22 moves along the movable slide 11, the first limiting shaft 12 can move along the first limiting hole 2222.

[0050] In this embodiment, the strip-shaped first limiting hole refers to the shape that adapts to the first bending part, and the whole has a certain length to facilitate the movement of the first limiting shaft.

[0051] Preferably, the clamping member 21 includes a clamping arm 211 and a clamping block 212 disposed at the end of the clamping arm 211. One end of the clamping arm 211 is hinged to the drive plate 5, and the other end is provided with the clamping block 212. A second bending portion 2111 extends outward from the middle of the clamping arm 211. A clamping groove 13 is provided on the clamping seat 1. A second limiting shaft 14 is provided on the clamping groove 13. The second bending portion 2111 of the clamping arm 211 is provided with a clamping hole 2112 adapted to the second limiting shaft 14.

[0052] When the drive plate 5 moves under the drive mechanism, the second limiting shaft 14 rotates and engages with the clamping hole 2112 so that the clamping arm 211 retracts toward the object being clamped.

[0053] In this embodiment, the clamping seat is designed simply and ingeniously, without the need for additional complex structures. The clamping seat is provided with a sliding groove and a limiting structure, which facilitates the movement and coordination of the clamping and pressing components. It not only provides a fixed point for clamping and pressing, but also limits the movement trajectory of the clamping and pressing components through design, ensuring the coordination and accuracy of the clamping action.

[0054] Preferably, the first bending portion 2221 is an obtuse-angle bending portion, and the inner side of the clamping arm 222 is inclined from the first bending portion 2221 toward the moving base plate 4; the second bending portion 2111 is an L-shaped bending portion, and the inner surface of the clamping arm 211 gradually inclines toward the clamping block 212. Further refined, the moving slide 11 is provided with a guide slope 111 adapted to the first bending portion 2221. In this embodiment, the guide slope is designed to facilitate the movement of the bending portion of the first bending portion.

[0055] Preferably, the movable base plate 4 has three outwardly extending hinge blocks 41 spaced circumferentially, and the three clamping arms 211 are respectively hinged to the ends of the corresponding hinge blocks 41 via rotating shafts; the drive plate 5 includes an upper drive plate 51 and a lower drive plate 52 spaced axially along the movable base plate 4, and the three clamping arms 211 are respectively hinged between the upper drive plate 51 and the lower drive plate 52. In this embodiment,

[0056] Preferably, the driving mechanism is a locking cylinder; the driving plate 5 is fixed to the end of the telescopic rod of the locking cylinder and located in the middle of the movable base plate 4. The telescopic rod of the locking cylinder extends and retracts, causing the clamping member 21 to open or close, and simultaneously causing the pressing member 22 to move away from or closer to the clamped part 10. The pressing hook design of each pressing member ensures effective pressing of the clamped object.

[0057] like Figure 6 As shown in the partial cross-sectional structural diagram, when the telescopic rod of the locking cylinder moves the drive plate away from the clamped part, since the clamping member is hinged to the drive plate, its hinged end moves with the drive plate away from the clamped part, causing the clamping blocks to retract towards the clamped part and lock it. At the same time, the clamping hook of the pressing member also presses tightly against the edge of the clamped part, pressing it onto the clamping seat, thus achieving double clamping and locking. Conversely, when the telescopic end of the locking cylinder is controlled to move towards the clamped part, the clamping member opens outward, and the clamping hook of the pressing member also releases the clamped part.

[0058] In this embodiment, by integrating a unified drive mechanism such as a locking cylinder, the synchronous operation of the clamping and pressing components is achieved, which reduces the complexity of operation, improves efficiency, and makes the entire clamping process smooth and efficient, significantly improving the speed and safety of the operation.

[0059] Preferably, the bottom of the clamping seat 1 is provided with an adjusting cylinder 6; the adjusting cylinder 6 is used to adjust the distance between the clamping seat 1 and the clamping assembly 2 and the object being clamped, and the clamping seat 1 is fixed on the telescopic rod of the adjusting cylinder 6 by a mounting plate 7.

[0060] Preferably, the clamping base 1 has a receiving cavity 15 for mounting the clamping assembly 2 and the driving mechanism 3. A clamping cover 8 is provided at the opening of the receiving cavity, and the clamping cover 8 has an avoidance notch 81 adapted to the clamping arm. In this embodiment, the clamping base is designed simply and ingeniously, requiring no additional complex structures. It only needs a receiving cavity adapted to the clamping assembly, and grooves or holes are provided on the clamping base to facilitate the opening or closing of the clamping components, thus realizing the clamping and locking operation of the clamping assembly. This reduces reliance on complex tools and facilitates daily maintenance and inspection.

[0061] The above embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An open-close type clamping tool characterized by comprising: The clamp seat, the movable clamp assembly arranged on the clamp seat, the driving mechanism arranged on the clamp seat for driving the clamp assembly to clamp or release the clamped object; the clamp assembly is arranged on the output end of the driving mechanism, and comprises a clamp piece which can be opened or closed towards the clamped part of the clamped object and / or a pressing piece which can move reciprocatingly along the power output direction of the driving mechanism; The clamp piece is closed towards the clamped object to form a clamp cavity which is matched with the profile of the clamped part of the clamped object, and the clamped part is limited in the clamp cavity; the pressing piece can press the clamped part between itself and the clamp seat.

2. The open-close clamping tool according to claim 1, wherein The output end of the driving mechanism is provided with a moving base plate which can move reciprocatingly along the power output direction; two or more than two pressing pieces are distributed on the moving base plate in a circumferential symmetry or equidistance; the end of the pressing piece is provided with a pressing hook which extends inwardly to press the clamped part between the pressing piece and the clamp seat through the pressing hook.

3. The open-close clamping tool according to claim 2, wherein The power output end of the driving mechanism is fixedly provided with a driving plate which is arranged in the middle of the moving base plate; two or more than two clamp pieces are distributed on the driving plate in a circumferential symmetry or equidistance, and are closed towards the center and clamped on the edge of the clamped part under the driving of the driving mechanism.

4. The open-close gripping tool according to any one of claims 2 or 3, wherein The clamp seat is respectively provided with a moving sliding groove which is matched with the pressing piece; the pressing piece moves along the moving sliding groove under the driving of the driving mechanism, so that the pressing hook at the end of the pressing piece moves towards the clamp seat, and the clamped part of the clamped object is pressed on the clamp seat.

5. The open-close gripping tool according to claim 4, wherein The pressing piece comprises a bending integrally formed pressing arm, one end of the pressing arm is hinged on the edge of the moving base plate, and the other end is provided with the pressing hook; the moving sliding groove is provided with a first limiting shaft, the middle part of the pressing arm is outwardly provided with a first bending part, a strip-shaped first limiting hole is arranged on the bending part, the limiting shaft is arranged in the first limiting hole, and the first limiting shaft can move along the first limiting hole when the pressing piece moves along the moving sliding groove.

6. The open-close gripping tool according to claim 5, wherein The clamp piece comprises a clamp arm and a clamp block arranged at the end of the clamp arm, one end of the clamp arm is hinged on the driving plate, and the other end is provided with the clamp block; the middle part of the clamp arm is outwardly provided with a second bending part, the clamp seat is provided with a clamp sliding groove, the clamp sliding groove is provided with a second limiting shaft, and the second bending part of the clamp arm is provided with a clamp hole which is matched with the second limiting shaft; When the driving plate moves under the driving of the driving mechanism, the second limiting shaft and the clamp hole rotate to make the clamp arm close towards the clamped object.

7. The open-close gripping tool according to claim 6, wherein The first bending part is an obtuse angle bending part, and the inner side of the pressing arm is arranged in an inclination from the first bending part to the moving base plate; the second bending part is an L-shaped bending part, and the inner side surface of the clamp arm is gradually inclined towards the clamp block.

8. The open-close gripping tool according to claim 7, wherein The mobile base is circumferentially spaced with three outwardly extending hinge blocks, and the three clamping arms are respectively hinged at the end of the corresponding hinge block through a rotating shaft; the driving plate comprises an upper driving plate and a lower driving plate which are axially spaced, and the three clamping arms are respectively hinged between the upper driving plate and the lower driving plate.

9. The open-close gripping tool according to claim 8, wherein The driving mechanism is a locking oil cylinder; the driving plate is fixed at the end of the telescopic rod of the locking oil cylinder and located in the middle of the mobile base, and the telescopic rod of the locking oil cylinder is telescoped to drive the clamping piece to open or close, and simultaneously drive the pressing piece to move away from or close to the clamped part.

10. The open-close gripping tool according to claim 9, wherein The bottom of the clamping seat is provided with an adjusting oil cylinder; the adjusting oil cylinder is used to adjust the distance between the clamping seat, the clamping assembly and the clamped object, and the clamping seat is fixed on the telescopic rod of the adjusting oil cylinder through a mounting plate.

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