Clamping jaw device, clamping accessory and engineering machinery

Abstract

The utility model belongs to the technical field of mechanical arms, and particularly relates to a clamping jaw device, a clamping accessory and engineering machinery. The negative pressure driving part comprises a cylinder body, a plug body and a rod body, the plug body is movably arranged in the cylinder body, one end of the rod body is connected with the plug body, the other end of the rod body extends out of the cylinder body to be in driving connection with the clamping jaw mechanism, and a negative pressure cavity used for being communicated with a negative pressure air source is formed between the side, away from the rod body, of the plug body and the cylinder body. According to the clamping jaw device, the clamping jaw mechanism is driven by the negative pressure driving part to execute clamping work, the negative pressure cavity of the negative pressure driving part is communicated with the negative pressure air source, and driving force is provided for the negative pressure cavity through the negative pressure air source. The negative pressure driving piece and the negative pressure source are simple in structure, small in size and light in weight, the portability of the clamping jaw device is improved, and the clamping jaw device can be conveniently applied to a more complex working environment.

Description

Technical Field

[0001] The present application belongs to the technical field of manipulators, and specifically relates to a clamping claw device, a clamping attachment and an engineering machine. Background Art

[0002] In the installation of glass curtain walls or large-scale steel structure frame installation, keel installation is extremely important. Keel is the basic structure used to support glass curtain walls, usually made of metal materials. As the frame of the glass curtain wall system, the keel is responsible for fixing, supporting, and transferring loads, and its weight ranges from tens to hundreds of kilograms. Small keels are generally installed manually by building scaffolding, etc., which is inefficient; large keels are generally installed by external hanging baskets, aerial work vehicles, etc., and they are manually supported and adjusted in position, which is difficult to operate, unsafe, and has a high installation cost.

[0003] At present, with the popularization of intelligence, some manufacturers use hydraulic clamps to clamp some square tube profiles, but they are mainly heavy parts. At the same time, hydraulic clamping can easily leave clamping marks on the surface of steel structures with high surface requirements, and due to limited indoor space, general clamping mechanisms are difficult to use, and the popularity rate is low. Utility Model Content

[0004] The purpose of the present application is to provide a clamping device, a clamping attachment and an engineering machine to improve the portability of the clamping device.

[0005] In order to achieve the above-mentioned object, the present application provides a clamping device comprising:

[0006] A clamping claw mechanism, used for clamping an object to be clamped;

[0007] The negative pressure driving component includes a cylinder body, a plug body and a rod body. The plug body is movably arranged inside the cylinder body. One end of the rod body is connected to the plug body, and the other end of the rod body extends out of the cylinder body and is driven and connected to the clamping mechanism. A negative pressure chamber for communicating with a negative pressure gas source is formed between the side of the plug body away from the rod body and the cylinder body.

[0008] In some embodiments, the negative pressure gas source is a vacuum pump, and the negative pressure driving member is a negative pressure cylinder.

[0009] In some embodiments, the clamping mechanism includes: an intermediate connecting member; a first clamping assembly, rotatably disposed at one end of the intermediate connecting member; a second clamping assembly, rotatably disposed at the other end of the intermediate connecting member, and a clamping space for accommodating an object to be clamped is formed between the first clamping assembly and the second clamping assembly; an angle adjustment assembly, disposed on the rod body and located at one end of the rod body away from the plug body, for adjusting the angle between the first clamping assembly, the second clamping assembly and the intermediate connecting member.

[0010] In some embodiments, the angle adjustment assembly includes: a connecting seat, which is arranged on the rod body and located at one end of the rod body away from the plug body; a first connecting member, which is arranged on one side of the connecting seat, and the two ends of the first connecting member are respectively rotatably connected to the first clamping assembly and the connecting seat; a second connecting member, which is arranged on the other side of the connecting seat, and the two ends of the second connecting member are respectively rotatably connected to the second clamping assembly and the connecting seat.

[0011] In some embodiments, the first clamping assembly and the second clamping assembly both include a clamping member, a mounting seat and a bending rod, the clamping member is detachably disposed on the mounting seat, the first end of the bending rod is connected to a side of the mounting seat away from the clamping member, the second end of the bending rod is rotatably connected to the intermediate connecting member, the second end of the bending rod is at a bending position of the bending rod, and the third end of the bending rod is rotatably connected to the angle adjustment assembly.

[0012] In some embodiments, a first connecting hole is provided on the clamping member, and a second connecting hole corresponding to the first connecting hole is provided on the mounting seat. The first clamping assembly and the second clamping assembly also include a first connecting rod and a first fastener. One end of the first connecting rod is clamped on the end surface of the clamping member, and the other end of the first connecting rod passes through the first connecting hole and the second connecting hole in sequence and is threadedly connected to the first fastener. The first connecting hole and / or the second connecting hole are waist-shaped holes.

[0013] In some embodiments, the clamping jaw device further comprises a width adjustment component disposed on the rod body and used to adjust the maximum clamping width and / or the minimum clamping width of the clamping jaw mechanism.

[0014] In some embodiments, a concave cavity is formed at one end of the rod body away from the plug body, and the width adjustment assembly includes: a second connecting rod, one end of the second connecting rod is clamped on the end surface of the connecting seat, the other end of the second connecting rod passes through the connecting seat and extends into the concave cavity, and a threaded connection is formed between the second connecting rod and the cavity wall of the concave cavity; a second fastener is sleeved on the second connecting rod and between the connecting seat and the rod body, and a threaded connection is formed between the second fastener and the second connecting rod.

[0015] A second aspect of the present application provides a clamping attachment, comprising a clamping jaw mounting seat; and the above-mentioned clamping jaw device, wherein the clamping jaw device is mounted on the clamping jaw mounting seat.

[0016] A third aspect of the present application provides an engineering machinery comprising the above-mentioned clamping attachment.

[0017] In the above technical solution, the present application provides a clamping device, the clamping device includes a clamping mechanism and a negative pressure driving member, the negative pressure driving member includes a cylinder body, a plug body and a rod body, the plug body is movably arranged inside the cylinder body, one end of the rod body is connected to the plug body, the other end of the rod body extends out of the cylinder body and is driven and connected to the clamping mechanism, and a negative pressure cavity for communicating with a negative pressure gas source is formed between the side of the plug body away from the rod body and the cylinder body. When the negative pressure gas source vacuumizes the negative pressure cavity, the plug body moves toward one side of the negative pressure cavity, and then the rod body drives the clamping mechanism to clamp the object to be clamped. In the above clamping device, when it is necessary to clamp the object to be clamped, the negative pressure driving member is connected to the negative pressure gas source, and the negative pressure gas source provides power to the negative pressure driving member, and the negative pressure driving member drives the clamping mechanism to clamp. Compared with the pressurized gas source and the hydraulic power source, the negative pressure gas source has a simple structure, a small volume, and is easy to transfer, which improves the portability of the clamping device and enables the clamping device to be applied to more complex working environments.

[0018] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of the clamping jaw device in a clamping state according to an embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of the clamping jaw device provided in an embodiment of the present application in an open state;

[0022] Figure 3 It is a first cross-sectional schematic diagram of a clamping jaw device provided according to an embodiment of the present application;

[0023] Figure 4 A second cross-sectional schematic diagram of a clamping device provided according to an embodiment of the present application;

[0024] Figure 5 is a third cross-sectional schematic diagram of the clamping jaw device provided according to an embodiment of the present application;

[0025] Figure 6 It is a schematic diagram of the structure of the clamping attachment provided according to an embodiment of the present application.

[0026] Description of Reference Numerals

[0027] 100 Clamping mechanism 106 Guide rod

[0028] 101 Intermediate connecting piece 107 Bearing

[0029] 102 first clamping assembly 200 negative pressure driving member

[0030] 1021 Clamping piece 201 Cylinder

[0031] 1022 Mounting seat 202 Rod body

[0032] 1023 bending rod 203 plug body

[0033] 1024 first connecting rod 300 mounting frame

[0034] 1025 cushion 301 weight reduction avoidance hole

[0035] 103 Second clamping assembly 400 Width adjustment assembly

[0036] 104 Angle adjustment component 401 Second connecting rod

[0037] 1041 connecting seat 402 second fastener

[0038] 1042 first connecting member 500 reset member

[0039] 1043 Second connecting piece 600 Clamping jaw mounting seat

[0040] 105 Parallel Link DETAILED DESCRIPTION

[0041] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0042] The following describes the clamping device and engineering machinery according to the present application with reference to the accompanying drawings. Figure 1 As shown, it is a schematic diagram of the structure of the clamping device in the open state according to the embodiment of the present application; Figure 2 The above is a schematic diagram of the structure of the clamping device in the clamping state according to the embodiment of the present application; Figure 3 , which is a first cross-sectional schematic diagram of a clamping device provided according to an embodiment of the present application; Figure 4 , which is a second cross-sectional schematic diagram of the clamping device provided according to an embodiment of the present application; Figure 5 FIG. 2 is a third cross-sectional schematic diagram of a clamping device according to an embodiment of the present application. The clamping device provided in the embodiment of the present application includes:

[0043] The clamping jaw mechanism 100 is used to clamp an object to be clamped;

[0044] The negative pressure driving member 200 includes a cylinder body 201, a plug body 203 and a rod body 202. The plug body 203 is movably arranged inside the cylinder body 201. One end of the rod body 202 is connected to the plug body 203. The other end of the rod body 202 extends out of the cylinder body 201 and is driven and connected to the clamping mechanism 100. A negative pressure chamber (not shown in the figure) for connecting to a negative pressure gas source is formed between the side of the plug body 203 facing away from the rod body 202 and the cylinder body 201.

[0045] In the prior art, the clamping device is usually provided with a positive pressure cylinder, in which positive pressure is applied to the piston to drive the clamping or opening of the clamping device. However, the above-mentioned clamping device requires a positive pressure gas source, which is difficult to arrange and transport, and is not suitable for complex construction environments. The clamping device driven by a hydraulic power source is also difficult to transport, and the hydraulic components are more expensive and occupy more space.

[0046] The clamping device provided in the embodiment of the present application includes a negative pressure driving member 200 and a clamping mechanism 100. The negative pressure driving member 200 is provided with a cylinder 201, a plug 203 and a rod 202. A negative pressure chamber is provided on the side of the plug 203 away from the rod 202. The negative pressure chamber is connected to a negative pressure gas source, and the negative pressure gas source provides power for the negative pressure driving member 200. The rod 202 of the negative pressure driving member 200 is connected to the clamping mechanism 100 by driving, and the movement of the rod 202 of the negative pressure driving member 200 can drive the clamping mechanism 100 to clamp the object to be clamped. Compared with connecting a positive pressure gas source or a hydraulic system, the clamping device provided in the embodiment of the present application is connected to a negative pressure gas source. The negative pressure gas source is usually simple in structure, small in volume and weight (such as a negative pressure pump), which improves the portability of the clamping device when in use, and enables the clamping device to be applied to more complex environments.

[0047] In one embodiment, the negative pressure gas source is a vacuum pump, and the negative pressure driving member 200 is a negative pressure cylinder. A vacuum pump is a device or apparatus that uses mechanical, physical, chemical or physicochemical methods to evacuate the evacuated container to generate, improve and maintain vacuum. The vacuum pump is connected to the negative pressure chamber and can evacuate the negative pressure chamber to drive the plug body 203 and the rod body 202 to move toward the negative pressure chamber, thereby clamping the clamping mechanism 100. The negative pressure cylinder uses the pressure difference of the gas to achieve functions such as suction, transportation and compression. The negative pressure cylinder includes a cylinder body 201, a plug body 203 and a rod body 202. The linear motion of the plug body 203 can drive the rod body 202 to move linearly, and the linear motion of the rod body 202 can drive the clamping mechanism 100 to clamp. The volume and weight of the vacuum pump and the negative pressure cylinder are small, which simplifies the structure of the clamping device, reduces the volume and weight of the clamping device, and makes the clamping device more convenient to transport and work.

[0048] In a specific embodiment, the negative pressure driving member 200 is a negative pressure cylinder, and the cylinder body 201 is divided into a rod chamber and a rodless chamber by a plug body 203. The negative pressure chamber is located in the rodless chamber, and a first connecting hole (not shown in the figure) connected to the outside air is provided on one side of the rod chamber, and a second connecting hole (not shown in the figure) connected to the vacuum pump is provided on one side of the rodless chamber.

[0049] In one embodiment, Figures 1 to 5 As shown, the clamping device further includes a mounting frame 300 , and the mounting frame 300 is used to mount and fix the negative pressure driving member 200 and the clamping mechanism 100 .

[0050] In one embodiment, Figures 1 to 5 As shown, the clamp mechanism 100 includes: an intermediate connection member 101; a first clamping assembly 102, which is rotatably arranged at one end of the intermediate connection member 101; a second clamping assembly 103, which is rotatably arranged at the other end of the intermediate connection member 101, and a clamping space for accommodating an object to be clamped is formed between the first clamping assembly 102 and the second clamping assembly 103; an angle adjustment assembly 104, which is arranged on the rod body 202 and located at one end of the rod body 202 away from the plug body 203, and is used to adjust the angle between the first clamping assembly 102, the second clamping assembly 103 and the intermediate connection member 101. The first clamping assembly 102 and the second clamping assembly 103 of the clamp mechanism 100 are located at both ends of the intermediate connection member 101 and are both rotatably connected to the intermediate connection member 101, and a clamping space for accommodating an object to be clamped is formed between the first clamping assembly 102 and the second clamping assembly 103, and the first clamping assembly 102 and the second clamping assembly 103 cooperate with each other to clamp the object to be clamped.

[0051] The angle adjustment component 104 can adjust the angle between the first clamping component 102, the second clamping component 103 and the intermediate connector 101, and further adjust the width of the clamping space between the first clamping component 102 and the second clamping component 103 to clamp the object to be clamped. The angle adjustment component 104 is arranged on the rod body 202 and is located at one end of the rod body 202 away from the plug body 203. The linear motion of the rod body 202 can drive the angle adjustment component 104 to move, and the angle adjustment component 104 moves to drive the first clamping component 102 and the second clamping component 103 to adjust the width of the clamping space. Specifically, the first clamping assembly 102 and the second clamping assembly 103 are arranged opposite to each other, the intermediate connecting seat 1041 connects the middle of the first clamping assembly 102 and the second clamping assembly 103, the angle adjustment assembly 104 connects one end of the first clamping assembly 102 and the second clamping assembly 103, and the clamping space is arranged at the other end of the first clamping assembly 102 and the second clamping assembly 103. The angle adjustment assembly 104 adjusts the angle between the first clamping assembly 102, the second clamping assembly 103 and the intermediate connecting member 101 at one end, so as to change the width of the clamping space at the other end, thereby enabling the first clamping assembly 102 and the second clamping assembly 103 to cooperate with each other to perform the clamping work. With the above-mentioned clamping jaw device, the angle adjustment assembly 104 can drive the other ends of the first clamping assembly 102 and the second clamping assembly 103 to move closer to or farther from each other to adjust the width of the clamping space. The structural design is reasonable and easy to manufacture and use.

[0052] In one embodiment, Figures 1 to 5 As shown, the angle adjustment assembly 104 includes: a connecting seat 1041, which is arranged on the rod body 202 and is located at one end of the rod body 202 away from the plug body 203; a first connecting member 1042, which is arranged on one side of the connecting seat 1041, and the two ends of the first connecting member 1042 are respectively rotatably connected to the first clamping assembly 102 and the connecting seat 1041; a second connecting member 1043, which is arranged on the other side of the connecting seat 1041, and the two ends of the second connecting member 1043 are respectively rotatably connected to the second clamping assembly 103 and the connecting seat 1041.

[0053] The connecting seat 1041 is arranged on one end of the rod body 202 away from the plug body 203, and the first connecting member 1042 and the second connecting member 1043 are arranged on both sides of the connecting seat 1041 respectively. The connecting seat 1041 is driven by the rod body 202 to perform linear motion, so that the connecting seat 1041 can drive the first connecting member 1042 and the second connecting member 1043 to move. The movement of the first connecting member 1042 and the second connecting member 1043 can make the first clamping assembly 102 and the second clamping assembly 103 rotate around the middle connecting member 101, so as to increase or reduce the clamping width of the clamping mechanism 100. The above-mentioned angle adjustment assembly 104 can convert the linear motion into the rotational motion of the first clamping assembly 102 and the second clamping assembly 103 under the action of the movement of the rod body 202, so as to facilitate the first clamping assembly 102 and the second clamping assembly 103 to cooperate with each other to clamp the object to be clamped.

[0054] In one embodiment, Figures 1 to 5 As shown, the first clamping assembly 102 and the second clamping assembly 103 both include a clamping member 1021, a mounting seat 1022 and a bending rod 1023. The clamping member 1021 is detachably arranged on the mounting seat 1022. The first end of the bending rod 1023 is connected to a side of the mounting seat 1022 away from the clamping member 1021. The second end of the bending rod 1023 is rotatably connected to the intermediate connecting member 101. The second end of the bending rod 1023 is at a bending position of the bending rod 1023. The third end of the bending rod 1023 is rotatably connected to the angle adjustment assembly 104.

[0055] The first clamping assembly 102 and the second clamping assembly 103 both include a clamping member 1021. When the two clamping members 1021 are moved closer to or farther from each other, the clamping width of the clamping mechanism 100 can be changed. The clamping member 1021 is detachably arranged on a mounting seat 1022. The mounting seat 1022 is connected to a bending rod 1023. The rotation of the two bending rods 1023 can drive the two clamping members 1021 to move closer to or farther from each other. The second end of the bending rod 1023 is located between the first end and the third end. The first end of the bending rod 1023 is connected to the mounting seat 1022. The second end of the bending rod 1023 is rotatably connected to the intermediate connecting member 101. The third end of the bending rod 1023 is rotatably connected to the angle adjustment assembly 104. The angle adjustment assembly 104 can adjust the angle between the bending rod 1023 and the intermediate connecting member 101, so that the first ends of the two bending rods 1023 are close to or away from each other. The first ends of the bending rods 1023 are connected to the mounting seat 1022, and the mounting seat 1022 is detachably connected with a clamping member 1021. The two clamping members 1021 are close to or away from each other, which can change the clamping width of the clamping mechanism 100, so that the clamping mechanism 100 can clamp or loosen the object to be clamped. The clamping member 1021 is detachably connected to the mounting seat 1022, and the model or type of the clamping member 1021 can be changed according to different clamped objects. In addition, when the clamping member 1021 is damaged, it is also convenient to disassemble and replace the clamping member 1021.

[0056] In a specific embodiment, a buffer pad 1025 for clamping and buffering is provided on one side opposite to the two clamping members 1021 .

[0057] In a specific embodiment, Figures 1 to 5 As shown, the first clamping assembly 102 and the second clamping assembly 103 both include a parallel link 105, the first end of the parallel link 105 is rotatably connected to the side of the mounting seat 1022 away from the clamping member 1021, the other end of the parallel link 105 is rotatably connected to the intermediate connecting member 101, the first end of the bending rod 1023 is rotatably connected to the side of the connecting seat 1041 away from the clamping member 1021, and the parallel link 105 is arranged in parallel with the bending rod 1023. The arrangement of the parallel link 105 enables the first clamping assembly 102 and the second clamping assembly 103 to form a parallel link 105 mechanism, thereby enabling the first clamping assembly 102 and the second clamping assembly 103 to enable the clamping member 1021 to move in parallel to clamp the object to be clamped during the movement process, and the parallel link 105 can increase the clamping ratio of the clamping force, so that the clamping mechanism 100 can clamp heavier objects to be clamped.

[0058] In one embodiment, Figures 1 to 5As shown, a first connecting hole (not shown in the figure) is provided on the clamping member 1021, and a second connecting hole (not shown in the figure) corresponding to the first connecting hole is provided on the mounting seat 1022. The first clamping assembly 102 and the second clamping assembly 103 also include a first connecting rod 1024 and a first fastener (not shown in the figure). One end of the first connecting rod 1024 is clamped on the end surface of the clamping member 1021, and the other end of the first connecting rod 1024 passes through the first connecting hole and the second connecting hole in sequence and is threadedly connected to the first fastener. The first connecting hole and / or the second connecting hole are waist-shaped holes.

[0059] Different clamping widths are often required for different objects to be clamped, and the first fastener can fine-tune the clamping width. Specifically, a first connecting hole is provided on the clamping member 1021, and a second connecting hole corresponding to the first connecting hole is provided on the mounting seat 1022. The first fastener can pass through the first connecting hole and the second connecting hole to lock the mounting seat 1022 and the clamping member 1021. The first connecting hole and / or the second connecting hole are waist-shaped holes, and the first fastener can lock the clamping member 1021 at different positions of the mounting seat 1022 to change the distance between the two clamping members 1021, thereby being able to fine-tune the maximum clamping width and / or the minimum clamping width of the clamping jaw mechanism 100 to adapt to different objects to be clamped.

[0060] In one embodiment, Figures 1 to 5 As shown, the clamping device further includes a width adjustment component 400 disposed on the rod body 202 and used to adjust the maximum clamping width and / or the minimum clamping width of the clamping mechanism 100. The extension and retraction of the rod body 202 can drive the clamping mechanism 100 to clamp or open. The width adjustment component 400 is disposed on the rod body 202 and connected to the clamping mechanism 100, and can fine-tune the movement of the clamping mechanism 100 to change the maximum clamping width and / or the minimum clamping width of the clamping mechanism 100, so that the clamping component can adapt to different types or models of objects to be clamped.

[0061] In one embodiment, a concave cavity is formed at one end of the rod body 202 away from the plug body 203, and the width adjustment assembly 400 includes: a second connecting rod 401, one end of the second connecting rod 401 is clamped on the end surface of the connecting seat 1041, the other end of the second connecting rod 401 passes through the connecting seat 1041 and extends into the concave cavity, and a threaded connection is formed between the second connecting rod 401 and the cavity wall of the concave cavity. The rod body 202 and the connecting seat 1041 are indirectly connected through the second connecting rod 401, and the second connecting rod 401 can adjust the spacing distance between the connecting seat 1041 and the rod body 202. The minimum clamping width and / or the maximum clamping width of the clamping mechanism 100 are related to the displacement of the connecting seat 1041 relative to the cylinder body 201. When the second connecting rod 401 is adjusted to change the spacing distance between the connecting seat 1041 and the rod body 202, the minimum clamping width and / or the maximum clamping width of the clamping mechanism 100 can be fine-tuned. The second fastener 402 is sleeved on the second connecting rod 401 and between the connecting seat 1041 and the rod body 202. A threaded connection is formed between the second fastener 402 and the second connecting rod 401. The second fastener 402 can fasten the connecting seat 1041 between one end of the second connecting rod 401 and the fastener, so that when the rod body 202 drives the second connecting rod 401 to move linearly, it can drive the connecting seat 1041 to move linearly synchronously. With the above structure, the maximum clamping width and / or the minimum clamping width of the clamping mechanism 100 can be conveniently adjusted, so that the clamping mechanism 100 can clamp different objects to be clamped, thereby improving the adaptability of the clamping mechanism 100.

[0062] In one embodiment, the clamping device further includes a reset member 500 for resetting the clamping mechanism 100. When the clamping device performs clamping work, the clamping mechanism 100 compresses the reset member 500 and makes the two clamping members 1021 approach each other to clamp the object to be clamped; after clamping is completed, the negative pressure gas source stops driving the negative pressure driving member 200, and the reset member 500 can drive the clamping mechanism 100 to move in the opposite direction, so that the two clamping members 1021 move away from each other and separate from the object to be clamped.

[0063] In a specific embodiment, the reset member 500 is an elastic member, preferably a reset spring, and a first through hole (not shown in the figure) extending along the extension direction of the rod body 202 is provided on the connection seat 1041. The clamping mechanism 100 also includes a guide rod 106, which passes through the first through hole and is slidably connected to the inner wall of the first through hole. One end of the guide rod 106 is connected to the mounting frame 300, and the other end of the guide rod 106 is connected to the end of the cylinder body 201 facing the clamping mechanism 100. The reset spring is wound on the guide rod 106 and is located between the cylinder body 201 and the connection seat 1041. When the rod body 202 drives the connection seat 1041 to move toward the cylinder body 201, the clamping members 1021 of the clamping mechanism 100 approach each other, and the reset spring is compressed. When the negative pressure gas source stops driving, the reset spring drives the connection seat 1041 to move in a direction away from the cylinder body 201 to reset the clamping mechanism 100. By adopting the above-mentioned clamping mechanism 100, when resetting the clamping mechanism 100, there is no need to add additional control elements, air valves and hydraulic valves. The clamping mechanism 100 can be reset by the reset movement of the reset spring, which has a simple structure and is easy to install and reduces the cost. A bearing 107 for guiding and lubricating is also provided between the guide rod 106 and the inner side wall of the first through hole.

[0064] In one embodiment, a pin hole (not shown) is provided at the end of the mounting frame 300, so that the negative pressure driving member 200 and the clamping mechanism 100 on the clamping device can be installed on a specific engineering machine and can be easily assembled and disassembled. In a specific embodiment, the number of the pin holes is multiple.

[0065] In one embodiment, a plurality of weight-reducing avoidance holes 301 are provided on the mounting frame 300 to facilitate the arrangement of the negative pressure driving member 200 and the clamping mechanism 100 and to reduce the weight and cost of the mounting frame 300 .

[0066] In one embodiment, a clamping attachment is provided, such as Figure 6 , which is a schematic diagram of the structure of the clamping attachment provided according to an embodiment of the present application. The clamping attachment includes a clamping claw mounting seat 600; and the above-mentioned clamping claw device, and the clamping claw device is mounted on the clamping claw mounting seat 600. Specifically, a plurality of clamping claw devices can be mounted on the clamping claw mounting seat 600, so that the engineering machinery on which the clamping attachment is mounted can clamp objects of different sizes to be clamped. In a specific embodiment, the clamping attachment is used to clamp the wall glass keel, and four clamping claw devices are arranged on the clamping claw mounting seat 600.

[0067] In one embodiment, a construction machine is provided, comprising the above-mentioned clamping attachment. After the construction machine is equipped with the above-mentioned clamping attachment, it can realize the clamping, up and down pitching, left and right side shifting, left and right swinging, up and down rotation, etc. of large components such as keels, with high working freedom, and can work synchronously with multiple degrees of freedom to realize the work from clamping to moving to a specified position in a small space, with a large working range and flexible operation.

[0068] In the description of the present application, it should be understood that 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In this application, 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, an electrical connection, or communication with each other; 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 this application can be understood according to specific circumstances.

[0070] 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 present application. 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.

[0071] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A clamping device, characterized in that: The clamping jaw device comprises: A clamping claw mechanism (100) is used to clamp an object to be clamped; A negative pressure driving member (200) comprises a cylinder body (201), a plug body (203) and a rod body (202); the plug body (203) is movably arranged inside the cylinder body (201); one end of the rod body (202) is connected to the plug body (203); the other end of the rod body (202) extends out of the cylinder body (201) and is drivingly connected to the clamping mechanism (100); a negative pressure chamber for communicating with a negative pressure gas source is formed between the side of the plug body (203) facing away from the rod body (202) and the cylinder body (201).

2. The clamping device according to claim 1, characterized in that: The negative pressure gas source is a vacuum pump, and the negative pressure driving component (200) is a negative pressure cylinder.

3. The clamping device according to claim 1, characterized in that: The clamping jaw mechanism (100) comprises: An intermediate connecting member (101); A first clamping assembly (102) rotatably disposed at one end of the intermediate connecting member (101); A second clamping assembly (103) is rotatably arranged at the other end of the intermediate connecting member (101), and a clamping space for accommodating the object to be clamped is formed between the first clamping assembly (102) and the second clamping assembly (103); An angle adjustment component (104) is arranged on the rod body (202) and is located at an end of the rod body (202) away from the plug body (203), and is used to adjust the angle between the first clamping component (102), the second clamping component (103) and the intermediate connecting member (101).

4. The clamping device according to claim 3, characterized in that: The angle adjustment component (104) comprises: A connecting seat (1041) is arranged on the rod body (202) and is located at an end of the rod body (202) away from the plug body (203); A first connecting member (1042) is arranged on one side of the connecting seat (1041), and two ends of the first connecting member (1042) are rotatably connected to the first clamping assembly (102) and the connecting seat (1041) respectively; The second connecting member (1043) is arranged on the other side of the connecting seat (1041), and two ends of the second connecting member (1043) are rotatably connected to the second clamping assembly (103) and the connecting seat (1041) respectively.

5. The clamping device according to claim 3, characterized in that: The first clamping assembly (102) and the second clamping assembly (103) both comprise a clamping member (1021), a mounting seat (1022) and a bending rod (1023); the clamping member (1021) is detachably arranged on the mounting seat (1022); a first end of the bending rod (1023) is connected to a side of the mounting seat (1022) away from the clamping member (1021); a second end of the bending rod (1023) is rotatably connected to the intermediate connecting member (101); the second end of the bending rod (1023) is located at a bending position of the bending rod (1023); and a third end of the bending rod (1023) is rotatably connected to the angle adjustment assembly (104).

6. The clamping device according to claim 5, characterized in that: The clamping member (1021) is provided with a first connecting hole, and the mounting seat (1022) is provided with a second connecting hole corresponding to the first connecting hole. The first clamping assembly (102) and the second clamping assembly (103) also include a first connecting rod (1024) and a first fastener. One end of the first connecting rod (1024) is clamped on the end surface of the clamping member (1021), and the other end of the first connecting rod (1024) passes through the first connecting hole and the second connecting hole in sequence and is threadedly connected to the first fastener. The first connecting hole and / or the second connecting hole are waist-shaped holes.

7. The clamping device according to claim 4, characterized in that: The clamping jaw device further comprises a width adjustment component (400) which is arranged on the rod body (202) and is used to adjust the maximum clamping width and / or the minimum clamping width of the clamping jaw mechanism (100).

8. The clamping device according to claim 7, characterized in that: A concave cavity is formed at one end of the rod body (202) away from the plug body (203), and the width adjustment assembly (400) comprises: A second connecting rod (401), one end of the second connecting rod (401) is clamped on the end surface of the connecting seat (1041), the other end of the second connecting rod (401) passes through the connecting seat (1041) and extends into the concave cavity, and a threaded connection is formed between the second connecting rod (401) and the cavity wall of the concave cavity; The second fastener (402) is sleeved on the second connecting rod (401) and is located between the connecting seat (1041) and the rod body (202), and a threaded connection is formed between the second fastener (402) and the second connecting rod (401).

9. A clamping tool, characterized in that: include: Gripper mounting seat (600); and According to any one of claims 1 to 8, the clamping device is mounted on the clamping mounting seat (600).

10. An engineering machine, characterized in that: Comprising the clamping attachment according to claim 9.

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