Multifunctional clamping device

Abstract

The utility model provides a multifunctional clamping device which comprises two clamping blocks capable of moving oppositely, the opposite faces of the two clamping blocks are each provided with a first groove and a second groove which are arranged in an inwards-concave mode, the first grooves and the second grooves are arranged in an included angle mode in the length direction, the positions of the first grooves in the opposite faces of the two clamping blocks correspond to each other, and the positions of the second grooves in the opposite faces of the two clamping blocks correspond to each other. The positions of the second grooves in the opposite faces of the two clamping blocks correspond to each other. The node clamping device is reasonable in design structure, not only can clamp nodes with the center lines parallel to the horizontal plane, but also can clamp nodes with the center lines perpendicular to the horizontal plane, adjustment of node states by workers can be omitted, the workload of the workers is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping devices, and particularly relates to a multifunctional clamping device. Background Art

[0002] Clamping devices play an important role in the fields of machining and automation. For parts with different structures, the structures of clamping devices are also different. As Figure 8 shown, it is a schematic diagram of the node structure on the current CRH Harmony train. Its overall shape is a cylindrical structure, and both ends have a boss-like structure protruding outward. During the production, processing, and assembly of this node, there are two placement states: the central axis is perpendicular to the horizontal plane and the central axis is parallel to the horizontal plane. Existing clamping devices for clamping this cylindrical structure can usually only clamp the node in one state (i.e., clamp the node when the central axis is perpendicular to the horizontal plane, or clamp the node when the central axis is parallel to the horizontal plane). Therefore, it is necessary to keep the node in one placement state all the time to cooperate with the clamping work of the clamping device. However, when clamping the node in this way, the staff needs to adjust the node to a suitable placement state, which increases the workload of the staff and is difficult to improve work efficiency. Therefore, there is an urgent need for a clamping device that can clamp the node in both horizontal and vertical states to solve the above problems. Summary of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a multifunctional clamping device, which can clamp the node with the central line parallel to the horizontal plane and can also clamp the node with the central line perpendicular to the horizontal plane during the process of clamping the node. It can save the staff from adjusting the state of the node, reduce the workload of the staff, and improve production efficiency.

[0004] The technical solution adopted by the utility model is: a multifunctional clamping device, including two clamping blocks that can move towards each other. The opposite surfaces of the two clamping blocks are both provided with a first concave groove and a second concave groove. The length directions of the first concave groove and the second concave groove are arranged at an angle. The positions of the first concave grooves on the opposite surfaces of the two clamping blocks correspond to each other, and the positions of the second concave grooves on the opposite surfaces of the two clamping blocks correspond to each other.

[0005] The included angle between the length direction of the first concave groove and the length direction of the second concave groove is 90°.

[0006] The first concave groove and the second concave groove are communicated with each other.

[0007] It also includes connecting plates fixed on the back surfaces of the clamping blocks. The ends of the two connecting plates are connected with a driving member, and the driving member can drive the two connecting plates to move towards and away from each other.

[0008] On the back of the clamping block, there is a positioning groove penetrating its length direction. One end of the connecting plate is placed in the positioning groove, and the connecting plate and the clamping block are connected by bolts.

[0009] The second groove is close to the outer end of the connecting plate.

[0010] Both the first groove and the second groove are V-shaped grooves.

[0011] The beneficial effects of the present utility model are as follows:

[0012] The present utility model has a reasonable design structure. It can not only clamp the nodes whose center lines are parallel to the horizontal plane, but also clamp the nodes whose center lines are perpendicular to the horizontal plane, which can save the staff from adjusting the node state, reduce the workload of the staff, and improve the production efficiency. Description of the Drawings

[0013] Figure 1 is a perspective view of the present utility model;

[0014] Figure 2 is a perspective Figure 1 ;

[0015] Figure 3 is a perspective Figure 2 ;

[0016] Figure 4 is a front view of the clamping block of the present utility model;

[0017] Figure 5 is a cross-sectional view of the clamping block of the present utility model;

[0018] Figure 6 is a working schematic Figure 1 ;

[0019] Figure 7 is a working schematic Figure 2 ;

[0020] Figure 8 is a perspective view of the node of the present utility model.

[0021] Wherein: 1. Clamping block; 101. First groove; 102. Second groove; 103. Positioning groove; 104. Step hole; 2. Connecting plate; 3. Driving part; 4. Node. Detailed Embodiment

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] As shown in the figure, a multifunctional clamping device includes two clamping blocks 1 that can move towards each other. The two clamping blocks 1 are components that directly contact and clamp the workpiece (node 4). When clamping the workpiece, the two clamping blocks 1 move towards each other, and when releasing the workpiece, the two clamping blocks 1 move away from each other. On the opposite surfaces of the two clamping blocks 1, there are first grooves 101 and second grooves 102 that are recessed inward. The length directions of the first groove 101 and the second groove 102 are arranged at an angle. In this example, the angle between the length direction of the first groove 101 and the length direction of the second groove 102 is 90°. The positions of the first grooves 101 on the opposite surfaces of the two clamping blocks 1 correspond to each other, and the positions of the second grooves 102 on the opposite surfaces of the two clamping blocks 1 correspond to each other. As Figures 1-5 shown, the two corresponding first grooves 101 are used for clamping the workpiece when the center line is perpendicular to the horizontal plane, and the two corresponding second grooves 102 are used for clamping the workpiece when it is in a horizontal state. This can avoid always adjusting the workpiece to the same state and reduce the labor intensity of the staff.

[0024] The first groove 101 and the second groove 102 are interconnected. This setting is mainly used to minimize the overall length of the clamping block 1 and reduce the volume while ensuring the clamping force, which can save raw materials and costs.

[0025] It further includes a connecting plate 2 fixed to the back of the clamping block 1. The ends of the two connecting plates 2 are connected to a driving member 3. The driving member 3 can drive the two connecting plates 2 to move towards and away from each other. In this example, the driving member 3 is a pneumatic manipulator, a sealed general-purpose manipulator of SCHUNK, with the model DPG-plus160-1. That is, the two connecting plates 2 are driven to move towards each other in a pneumatic manner, and then drive the two clamping blocks 1 to move to achieve the purpose of clamping the workpiece.

[0026] There is a positioning groove 103 that penetrates the length direction at the back position of the clamping block 1. One end of the connecting plate 2 is placed in the positioning groove 103, and the connecting plate 2 and the clamping block 1 are connected by bolts. A stepped hole 104 is provided in the clamping block 1, and the bolt can pass through it to fix the two. The design of the positioning groove 103 is used to cooperate with the bolt connection to achieve the firm installation of the clamping block 1 and the connecting plate 2.

[0027] The second groove 102 is close to the outer end of the connecting plate 2, which is convenient for clamping the workpiece and avoids the problem of interference between the workpiece and other parts on the clamping block 1.

[0028] Both the first groove 101 and the second groove 102 are V-shaped grooves. In addition, they can also be designed as arc-shaped structures matching the size of the workpiece to improve the clamping stability.

[0029] This multifunctional clamping device realizes the movement of the connecting plate 2 and the clamping block 1 through the driving member 3. As Figure 6 shown, when the workpiece is placed at the first groove 101 of the clamping block 1, the clamping work can be carried out with the center line of the workpiece perpendicular to the horizontal plane; as Figure 7 shown, when the workpiece is placed at the second groove 102 of the clamping block 1, that is, the center line of the workpiece is parallel to the horizontal plane to realize the clamping of the workpiece. This multifunctional clamping device can be connected to the robotic arm of the robot and has the advantages of flexible clamping and wide application range.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-functional clamping device, characterized in that, It includes two clamping blocks capable of moving towards each other. Concave first grooves and second grooves are provided on the facing surfaces of the two clamping blocks. The length directions of the first groove and the second groove are arranged at an angle. The positions of the first grooves on the facing surfaces of the two clamping blocks correspond to each other, and the positions of the second grooves on the facing surfaces of the two clamping blocks correspond to each other.

2. The multifunctional clamping device according to claim 1, wherein, The angle between the length direction of the first groove and the length direction of the second groove is 90°.

3. A multifunctional clamping device according to claim 1, wherein, The first groove and the second groove communicate with each other.

4. A multifunctional clamping device according to claim 1, characterized in that, It further includes connecting plates fixed to the back surfaces of the clamping blocks. The ends of the two connecting plates are connected with a driving member, and the driving member can drive the two connecting plates to move towards and away from each other.

5. The multifunctional clamping device according to claim 4, wherein, There is a positioning groove penetrating the length direction at the back position of the clamping block. One end of the connecting plate is placed in the positioning groove, and the connecting plate and the clamping block are connected by bolts.

6. A multifunctional clamping device according to claim 1, wherein, The second groove is close to the outer end of the connecting plate.

7. A multifunctional clamping device according to claim 1, characterized in that, Both the first groove and the second groove are V-shaped grooves.

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