Adjustable three-jaw robot

Abstract

This utility model relates to the field of robotic arm technology and discloses an adjustable three-jaw robotic arm, including three robotic claws and a circular mounting post. Each of the three robotic claws has a third robotic arm at its bottom. A second robotic arm is rotatably mounted at the end of each of the three third robotic arms away from the claw, and a first robotic arm is mounted at the end of each of the three second robotic arms away from the third robotic arm. A fixing rod is mounted above the circular mounting post, and three integrated mounting blocks are mounted on the fixing rod. Each of the three mounting blocks has a through-hole rectangular slot. This adjustable three-jaw robotic arm has significant advantages: adjusting the sliding block via a rotating knob drives the threaded rod, precisely controlling the distance between the three robotic claws; adapting to objects of different sizes, the drive block movement can link multiple robotic arms, allowing for flexible changes in the claw angle and ensuring stable gripping; the combination of dual adjustment mechanisms ensures both adjustment accuracy and improved gripping adaptability, making it convenient, efficient, and applicable to a wide range of scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of robotic arm technology, specifically, it relates to an adjustable three-jaw robotic arm. Background Technology

[0002] In the process of modern industrial production and automation, robotic arms, as key execution components, are becoming increasingly important. From the precise assembly of parts in the automotive manufacturing industry to the efficient grasping and placement of tiny components in the electronics industry, and the handling of goods in the logistics and warehousing industry, robotic arms, with their stable operating capabilities, high operating efficiency, and repeatable operation characteristics, have become core equipment for improving production efficiency and ensuring product quality stability, greatly promoting the intelligent upgrading and development of various industries.

[0003] Among the many types of robotic arms, the three-jaw robotic arm is widely used in various grasping operation scenarios due to its relatively simple structure and stable gripping action.

[0004] However, existing three-jaw robotic arms often have fixed spacing between their grippers, or can only make limited and imprecise adjustments. This makes it difficult to achieve precise fit when dealing with objects of various sizes, which can easily lead to objects falling off when gripping them.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An adjustable three-jaw robotic arm includes three robotic claws and a circular mounting post. Each of the three robotic claws has a third robotic arm at its bottom. A second robotic arm is rotatably mounted at the end of each of the three third robotic arms away from the robotic claw. A first robotic arm is mounted at the end of each of the three second robotic arms away from the third robotic arm. A fixing rod is positioned above the circular mounting post. Three integrated mounting blocks are mounted on the fixing rod. Each of the three mounting blocks has a through rectangular slot. A sliding block is positioned within the cavity of each of the three rectangular slots. The hinge point of each second and third robotic arm is located on the sliding block.

[0008] In a preferred embodiment of this utility model, the circular mounting column is provided with three movable slots that are interconnected. A driving block is slidably arranged in the inner cavity of the three movable slots. The three driving blocks are integrally connected. A first robotic arm is movably arranged at one end of each of the three driving blocks away from the movable slot.

[0009] In a preferred embodiment of this utility model, threaded rods are movably inserted through the inner cavities of the three rectangular slots, and a rotary knob is provided at one end of each of the three threaded rods away from the rectangular slots. The three rotary knobs are respectively rotatably mounted on the side wall of the mounting block.

[0010] In a preferred embodiment of this utility model, the three threaded rods are respectively engaged with three sliding blocks, and the three threaded rods and the three sliding blocks are respectively circumferentially distributed.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] This invention uses a rotary knob to drive a threaded rod to adjust the sliding block, precisely controlling the distance between the three mechanical claws. It can adapt to objects of different sizes, drive the block to move, and link multiple robotic arms to achieve flexible changes in the angle of the mechanical claws, ensuring stable clamping. Through the combination of dual adjustment mechanisms, it not only ensures adjustment accuracy but also improves clamping adaptability. It is convenient and efficient to operate and has a wide range of applications.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the picture:

[0019] 1. Circular mounting post; 2. Moving slot; 3. Sliding block; 4. First robotic arm; 5. Second robotic arm; 6. Third robotic arm; 7. Mechanical claw; 8. Fixed rod; 9. Mounting block; 10. Rectangular slot; 11. Sliding block; 12. Threaded rod; 13. Rotary knob. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0021] like Figures 1 to 3As shown, an adjustable three-jaw manipulator includes three mechanical claws 7 and a circular mounting post 1. Each of the three mechanical claws 7 has a third mechanical arm 6 at its bottom. A second mechanical arm 5 is rotatably mounted at the end of each of the three third mechanical arms 6 away from the mechanical claw 7. A first mechanical arm 4 is mounted at the end of each of the three second mechanical arms 5 away from the third mechanical arm 6. A fixing rod 8 is mounted above the circular mounting post 1, and three integrated mounting blocks 9 are mounted on the fixing rod 8. Each mounting block 9 has a through rectangular slot 10, and a sliding block 11 is installed inside each of the three rectangular slots 10. The hinge point of each second mechanical arm 5 and third mechanical arm 6 is located on the sliding block 11. This adjustable three-jaw manipulator has significant advantages: by rotating the knob 13 to drive the threaded rod 12 to adjust the sliding block 11, the spacing between the three mechanical claws 7 can be precisely controlled; it can adapt to objects of different sizes, allowing the drive block 3 to move and link multiple mechanical arms, enabling flexible changes in the angle of the mechanical claws 7 and ensuring stable gripping; through the combination of dual adjustment mechanisms, it ensures both adjustment accuracy and improved gripping adaptability, making it convenient, efficient, and applicable to a wide range of scenarios.

[0022] In a specific embodiment, the circular mounting post 1 has three movable slots 2 that are interconnected. A drive block 3 is slidably mounted inside each of the three movable slots 2, and the three drive blocks 3 are integrally connected. A first robotic arm 4 is movably mounted on one end of each drive block 3 away from the movable slot 2. In this configuration, the operator moves the drive block 3, allowing it to move vertically within the movable slot 2. When the drive block 3 moves, it causes the first robotic arm 4 to change angle. When the first robotic arm 4 changes angle, it causes the second robotic arm 5 to change angle. When the second robotic arm 5 changes angle, it causes the third robotic arm 6 to change angle. This ensures that the robotic claw 7 mounted on the third robotic arm 6 can change angle, thereby ensuring that the three robotic claws 7 can approach each other and clamp the object to be held.

[0023] Furthermore, threaded rods 12 are movably inserted through the inner cavities of the three rectangular slots 10. A rotary knob 13 is provided at one end of each threaded rod 12 away from the rectangular slot 10, and the three rotary knobs 13 are rotatably mounted on the side wall of the mounting block 9. The three threaded rods 12 are respectively engaged with three sliding blocks 11, and the three threaded rods 12 and the three sliding blocks 11 are circumferentially distributed. In this setup, the three mechanical claws 7 are adjusted by rotating the rotary knob 13. Specifically, the operator rotates the rotary knob 13, which in turn rotates the threaded rod 12. When the threaded rod 12 rotates, it engages with the sliding block 11, which slides within the rectangular slot 10. This allows for adjustment of the position of the sliding block 11. When the sliding block 11 moves, it moves the hinge points of the second and third mechanical arms 5 and 6. When the hinge points of the second and third mechanical arms 5 and 6 move, they move, which in turn moves the mechanical claws 7. This allows for adjustment of the distance between the three mechanical claws 7.

[0024] The implementation principle of an adjustable three-jaw manipulator in this embodiment is as follows:

[0025] Firstly, when using the device, the operator can adjust the three mechanical claws 7 by rotating the rotary knob 13. Specifically, the operator rotates the rotary knob 13, which drives the threaded rod 12 to rotate. When the threaded rod 12 rotates, it engages with the sliding block 11, which slides within the rectangular slot 10. This allows for adjustment of the position of the sliding block 11 (and the threaded rod 12 ensures more precise adjustment of the sliding block 11's position). When the sliding block 11 moves, it moves the hinge points of the second and third mechanical arms 5 and 6. When the hinge points of the second and third mechanical arms 6 move, they move the second and third mechanical arms 6. When the third mechanical arm 6 moves, it moves the mechanical claws 7, thus allowing for adjustment of the distance between the three mechanical claws 7. (When the position of the second mechanical arm 5 moves, since the second mechanical arm 5 and the first mechanical arm 4 are rotatably connected, the angle of the first mechanical arm 4 can be adjusted).

[0026] After adjusting the positions of the three mechanical claws 7 before use, the operator moves the drive block 3, which moves vertically within the moving slot 2. When the drive block 3 moves, it causes the first mechanical arm 4, which is mounted on it, to change its angle. When the first mechanical arm 4 changes its angle, it causes the second mechanical arm 5 to change its angle. When the second mechanical arm 5 changes its angle, it causes the third mechanical arm 6 to change its angle. This ensures that the mechanical claws 7 mounted on the third mechanical arm 6 can change their angle, thus ensuring that the three mechanical claws 7 can approach each other and clamp the object to be held.

Claims

1. An adjustable three-jaw manipulator, comprising three mechanical jaws (7) and a circular mounting post (1), characterized in that: Each of the three mechanical claws (7) is provided with a third mechanical arm (6) at its bottom. Each of the three third mechanical arms (6) is provided with a second mechanical arm (5) at one end away from the mechanical claw (7). Each of the three second mechanical arms (5) is provided with a first mechanical arm (4) at one end away from the third mechanical arm (6). A fixing rod (8) is provided above the circular mounting post (1). Three integrated mounting blocks (9) are provided on the fixing rod (8). Each of the three mounting blocks (9) has a rectangular slot (10) through it. Each of the three rectangular slots (10) has a sliding block (11) inside it. The hinge point of each second mechanical arm (5) and third mechanical arm (6) is provided on the sliding block (11).

2. The adjustable three-jaw manipulator according to claim 1, characterized in that, The circular mounting post (1) has three movable slots (2) that are interconnected. The inner cavity of each of the three movable slots (2) is slidably provided with a drive block (3). The three drive blocks (3) are connected as a whole. The end of each of the three drive blocks (3) away from the movable slot (2) is provided with a first robotic arm (4).

3. The adjustable three-jaw manipulator according to claim 1, characterized in that, The three rectangular slots (10) have threaded rods (12) that can be moved through their inner cavities. Each of the three threaded rods (12) has a rotary knob (13) at one end away from the rectangular slot (10). The three rotary knobs (13) are respectively rotatably mounted on the side wall of the mounting block (9).

4. The adjustable three-jaw manipulator according to claim 3, characterized in that, The three threaded rods (12) are respectively engaged with the three sliding blocks (11), and the three threaded rods (12) and the three sliding blocks (11) are respectively circumferentially distributed.

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