A robot gripper

Abstract

The utility model relates to robot clamp technical field especially relates to a kind of robot clamp, including gripper bottom plate, rotary fixed disc, tension link, gripper, gripper fixed plate, sliding block, slide rail and power component. Rotary fixed disc is equipped in gripper bottom plate bottom side middle, rotary fixed disc is connected with power component, and rotary fixed disc is equipped with tension link, and tension link is bolted with gripper fixed plate, and gripper fixed plate is fixed on sliding block, and sliding block is slidably installed on slide rail. Power component drives rotary fixed disc to rotate, and then through tension link, gripper is driven to slide inwards along slide rail, and synchronous clamping action is realized. The clamp compact structure, action synchronism is good, and clamping is stable, and it is suitable for flexible grasping application in the flexible grasping application of industrial robot in assembly, handling and other automated operation scene.

Description

Technical Field

[0001] This utility model relates to the field of robot gripper technology, and in particular to a robot gripper. Background Technology

[0002] With the continuous improvement of industrial automation, robots are widely used in manufacturing, assembly, and material handling, especially in high-efficiency, high-precision operation scenarios, which places higher demands on the structural design of robot end effectors—i.e., grippers. There are many types of existing robot grippers, among which mechanical grippers are the most common, achieving gripping actions through electric, pneumatic, or hydraulic drives. However, grippers in existing technologies generally suffer from the following problems: Gripper structures typically employ multiple drive components to control the movement of multiple grippers, resulting in complex structures, large sizes, limited installation space, and increased system maintenance costs. Especially in the context of compact end-effector spaces for multi-degree-of-freedom industrial robots, traditional gripper arrangements often fail to meet both space and weight constraints. Therefore, designing a robot gripper is essential. Utility Model Content

[0003] The purpose of this invention is to provide a robot gripper to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a robot gripper, comprising a gripper base plate, a rotating fixed disk, a tensioning link, a gripper, a gripper fixing plate, a slider, a slide rail, and a power assembly. The rotating fixed disk is located at the center of the bottom side of the gripper base plate and is fixedly connected to the gripper base plate by screws or bearings. The rotating fixed disk can rotate under the drive of the power assembly. The power assembly is connected to the rotating fixed disk and drives the rotating fixed disk to rotate. A tensioning link is provided on the rotating fixed disk and is bolted to the gripper fixing plate. The gripper fixing plate is fixed to the slider. The slider is mounted on the slide rail, and the slide rail guides the slider's sliding in a predetermined direction. When the power assembly drives the rotating fixed disk to rotate, the tensioning link causes the gripper fixing plate to slide along the slide rail, thereby causing the gripper to retract or open.

[0005] According to the above technical solution, the power component is a motor drive unit, and the output shaft of the motor drive unit is connected to the rotating fixed disk in a transmission connection.

[0006] According to the above technical solution, the gripper is a pair of adjustable claws. When the gripper fixing plate slides along the slide rail, the claws will simultaneously retract inward or open outward.

[0007] According to the above technical solution, the slide rail is fixedly connected to the gripper base plate and forms a guide structure that constrains the direction of slider movement.

[0008] According to the above technical solution, the tensioning link and the rotating fixed plate are hinged, so that the rotation of the rotating fixed plate drives the tensioning link to perform corresponding radial tightening or loosening actions.

[0009] According to the above technical solution, the slider and the slide rail have a sliding fit structure, which allows the slider to slide in the radial direction on the slide rail.

[0010] According to the above technical solution, the gripper base plate and the rotating fixed plate are connected by at least one bearing.

[0011] According to the above technical solution, the tensioning link includes multiple links, and each tensioning link is connected to the rotating fixed plate and the gripper fixed plate respectively.

[0012] According to the above technical solution, the power component is connected to the robot controller through an electronic control system to achieve precise control of the gripper's movements.

[0013] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention, through the linkage mechanism of a rotating fixed disc and a tensioning rod, enables the synchronous contraction and opening of the gripper's hand, ensuring a uniform distribution of clamping force during the gripping process, thereby improving gripping stability and preventing slippage or damage caused by uneven force. The gripper has a compact structure and uses an electric drive system, reducing the complexity of multiple drive components in traditional grippers, saving space, simplifying structural design, and improving the reliability and adaptability of the robot system. Furthermore, this invention, through the cooperation of slide rails and sliders, ensures smooth sliding of the gripper, further improving the accuracy and efficiency of the gripping action, making it particularly suitable for industrial automation operations requiring high precision and high stability. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a robot gripper proposed in this utility model; Figure 2 This is a schematic diagram of the overall structure of a robot gripper from another angle, as proposed in this utility model. Figure 3 This is a top view of a robot gripper proposed in this utility model.

[0015] In the diagram: 1 gripper base plate, 2 rotating fixed plate, 3 tensioning link, 4 gripper, 41 gripper fixing plate, 5 slider, 6 slide rail, 7 power component. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Reference Figure 1-3 A robot gripper includes a gripper base plate 1, a rotating fixed disk 2, a tensioning link 3, a gripper 4, a gripper fixing plate 41, a slider 5, a slide rail 6, and a power assembly 7. The gripper base plate 1 serves as the supporting foundation for the overall structure and is installed at the end effector of the robot to support the entire gripper device. The rotating fixed disk 2 is located in the middle of the bottom side of the gripper base plate 1. The rotating fixed disk 2 is fixedly connected to the gripper base plate 1 by screws or bearings and can rotate under the drive of the power assembly 7.

[0018] The power assembly 7 is mounted above the rotating fixed disk 2, preferably a motor drive unit, whose output shaft is connected to the rotating fixed disk 2 for providing rotational power to the rotating fixed disk 2. When the power assembly 7 is started, it drives the rotating fixed disk 2 to rotate in a set direction. The rotating fixed disk 2 is provided with multiple tensioning rods 3, each tensioning rod 3 having one end hinged to the rotating fixed disk 2 and the other end fixed to the gripper fixing plate 41 by bolts. The tensioning rods 3 can transmit radial tightening force during rotational movement.

[0019] The gripper fixing plate 41 is mounted on the slider 5, which can slide radially on the slide rail 6. The slide rail 6 is fixedly mounted on the gripper base plate 1, forming a guide structure that constrains the movement direction of the slider 5. The gripper 4 is mounted on the gripper fixing plate 41 and moves radially in and out along the slide rail 6 together with the slider 5.

[0020] During operation, when the power unit 7 drives the rotating fixed disk 2 to rotate, the tensioning linkage 3 moves the gripper fixing plate 41 towards the center of the fixture, thereby causing the slider 5 to slide inward on the slide rail 6, thus achieving a synchronous inward contraction of the gripper 4. When rotating in the opposite direction, the gripper 4 opens outward. This structure enables the gripper to have a synchronous and stable clamping force distribution when gripping workpieces, and can adapt to the gripping needs of workpieces of different sizes.

[0021] This fixture structure utilizes rotary drive to achieve coordinated retraction of the gripper, featuring a compact structure, good motion coordination, and stable and reliable gripping. It is suitable for industrial robots in various operational scenarios such as automated assembly, handling, or sorting.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A robot gripper, characterized in that, The gripper base plate (1), rotating fixed plate (2), tensioning link (3), gripper (4), gripper fixing plate (41), slider (5), slide rail (6) and power assembly (7) are provided. The rotating fixed plate (2) is provided in the middle of the bottom side of the gripper base plate (1). The rotating fixed plate (2) is fixedly connected to the gripper base plate (1) by screws or bearings, and the rotating fixed plate (2) can rotate under the drive of the power assembly (7). The power assembly (7) is connected to the rotating fixed disk (2), and the power assembly (7) is used to drive the rotating fixed disk (2) to rotate; A tensioning rod (3) is provided on the rotating fixed disk (2). The tensioning rod (3) is connected to the gripper fixing plate (41) by bolts. The gripper fixing plate (41) is fixed on the slider (5). The slider (5) is mounted on the slide rail (6), and the slide rail (6) guides the slider (5) to slide in a predetermined direction. When the power component (7) drives the rotating fixed disk (2) to rotate, the tensioning link (3) drives the gripper fixing plate (41) to slide in the direction of the slide rail (6), thereby causing the gripper (4) to retract or open.

2. The robot gripper according to claim 1, characterized in that, The power component (7) is a motor drive unit, and the output shaft of the motor drive unit is connected to the rotating fixed disk (2) for transmission.

3. A robot gripper according to claim 1, characterized in that, The gripper (4) is an adjustable gripper. When the gripper fixing plate (41) slides along the slide rail (6), the gripper will simultaneously retract inward or open outward.

4. A robot gripper according to claim 1, characterized in that, The slide rail (6) is fixedly connected to the gripper base plate (1) and forms a guide structure that constrains the movement direction of the slider (5).

5. A robot gripper according to claim 1, characterized in that, The tensioning link (3) and the rotating fixed disk (2) are hinged, so that the rotation of the rotating fixed disk (2) drives the tensioning link (3) to perform corresponding radial tightening or loosening actions.

6. A robot gripper according to claim 1, characterized in that, The slider (5) and the slide rail (6) are in a sliding fit structure, which allows the slider (5) to slide in the radial direction on the slide rail (6).

7. A robot gripper according to claim 1, characterized in that, The gripper base plate (1) and the rotating fixed plate (2) are connected by at least one bearing.

8. A robot gripper according to claim 1, characterized in that, The tensioning link (3) includes multiple links, and each tensioning link (3) is connected to the rotating fixed plate (2) and the gripper fixed plate (41) respectively.

9. A robot gripper according to claim 1, characterized in that, The power component (7) is connected to the robot controller through an electronic control system to achieve precise control of the gripper's movements.

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