Universal joint of pose positioning mechanical arm

Abstract

The utility model relates to the technical field of universal joints, and provides a pose positioning mechanical arm universal joint which comprises a joint body and a ball. A ball is arranged in the joint body, a supporting rod is fixed to the top end of the joint body, and a rotating structure is arranged on one side of the joint body. By arranging the rotating structure, one side of each hydraulic push rod is connected with one side of the top of the supporting rod, and the hydraulic push rods are rotationally connected with the connecting rod, so that when a single set of hydraulic push rods are started, the other set of hydraulic push rods rotate on one side of the connecting rod; and the two sets of hydraulic push rods are started at the same time, so that the supporting rod drives the ball body to rotate in multiple directions in the joint body, and the purpose of conveniently achieving 360-degree rotation adjustment of the mechanical arm is achieved.

Description

Technical Field

[0001] This utility model relates to the field of universal joint technology, and in particular to the universal joint of a posture positioning robotic arm. Background Technology

[0002] With the development of the times, people are using medical equipment more and more widely. In order to facilitate the positioning of patients, the use of robotic arms is essential. In order to make the robotic arms easy to adjust, universal joints are needed for operation.

[0003] To address this, patent CN203477795U discloses a novel universal joint, including a support rod and a joint for connecting the support rod. The joint includes a first clamping plate and a second clamping plate for clamping the support rod, and a connecting mechanism for connecting the first and second clamping plates. A spring element is sleeved on the outside of the joint on the connecting mechanism to adjust the clamping force between the first and second clamping plates, so that the support rod can move and be positioned under load without adjusting the connecting mechanism. The connecting mechanism can movably adjust the pressure of the spring element. This invention has a simple overall structure and is very convenient to operate, eliminating the need to loosen the connecting mechanism each time the support rod position is adjusted.

[0004] The aforementioned universal joints are not efficient enough in rotation during use, and they are inconvenient for disassembling and assembling the robotic arm, thus limiting their use. Utility Model Content

[0005] The purpose of this invention is to provide a universal joint for a posture positioning robotic arm, in order to solve the defects of existing robotic arm universal joints, such as poor rotation effect and inconvenience in disassembling and assembling the robotic arm.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a universal joint for a posture positioning robotic arm, comprising a joint body and a ball;

[0007] The joint body has a ball inside, a support rod is fixed to the top of the joint body, and a rotating structure is provided on one side of the joint body.

[0008] The rotating structure includes a first connecting rod disposed on one side of the joint body, a first hydraulic push rod disposed on one side of the first connecting rod, a second connecting rod disposed on the side of the joint body away from the first connecting rod, and a second hydraulic push rod disposed on one side of the second connecting rod.

[0009] A fixing rod is fixed to the bottom end of the joint body, and a disassembly and assembly structure is fixed to the bottom end of the fixing rod.

[0010] Preferably, the diameter of the sphere is smaller than the diameter of the joint body, and the sphere is rotatably connected inside the joint body.

[0011] Preferably, the first connecting rod and the second connecting rod are designed at a right angle, and one side of the first hydraulic push rod and the second hydraulic push rod are connected to one side of the top of the support rod.

[0012] Preferably, the first hydraulic push rod is rotatably connected to one side of the first connecting rod, and the second hydraulic push rod is rotatably connected to one side of the second connecting rod.

[0013] Preferably, the first hydraulic push rod and the second hydraulic push rod are designed in an arc shape, and the diameter of the second hydraulic push rod is larger than the diameter of the first hydraulic push rod.

[0014] Preferably, the disassembly and assembly structure includes a first mounting plate fixed to the bottom end of the fixing rod and a second mounting plate fixed to the top end of the support rod. The first mounting plate has a first threaded hole inside, and the second mounting plate has a second threaded hole evenly distributed at its top end.

[0015] Preferably, the first threaded hole is evenly spaced inside the first mounting plate, and the second threaded hole is evenly spaced inside the second mounting plate.

[0016] The universal joint of the pose positioning robotic arm provided by this utility model has the following advantages:

[0017] By incorporating a rotating structure, one side of the hydraulic push rod is connected to the top side of the support rod, and all hydraulic push rods are rotatably connected to the connecting rod. This allows the other set of hydraulic push rods to rotate on one side of the connecting rod when a single set of hydraulic push rods is activated. Simultaneous activation of both sets of hydraulic push rods facilitates the support rod driving the ball to rotate in multiple directions within the joint body, thereby achieving the goal of enabling the robotic arm to perform 360-degree rotation adjustment.

[0018] By incorporating a disassembly and assembly structure, the mounting plate is evenly provided with threaded holes, making it easy to pass mounting bolts through it and rotate them into the robotic arm for disassembly and assembly. This design also prevents the robotic arm from shifting position during use, thus facilitating the installation of the robotic arm on both sides of the universal joint and its easy disassembly and replacement. Attached Figure Description

[0019] Figure 1 This is a top view of the structure of this utility model;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3This is a front-view three-dimensional structural schematic diagram of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the present invention viewed from below;

[0023] Figure 5 This is a side view of the three-dimensional structure of this utility model.

[0024] The reference numerals in the diagram are as follows: 1. Joint body; 2. Sphere; 3. Support rod; 4. Rotating structure; 401. Connecting rod No. 1; 402. Hydraulic push rod No. 1; 403. Connecting rod No. 2; 404. Hydraulic push rod No. 2; 5. Fixing rod; 6. Assembly / disassembly structure; 601. Mounting plate No. 1; 602. Mounting plate No. 2; 603. Threaded hole No. 1; 604. Threaded hole No. 2. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5 The universal joint of the posture positioning robotic arm provided by this utility model includes a joint body 1 and a ball 2.

[0027] Reference Figures 1-4 As shown, a ball 2 is disposed inside the joint body 1. The diameter of the ball 2 is smaller than the diameter of the joint body 1. The ball 2 is rotatably connected inside the joint body 1. A support rod 3 is fixed to the top of the joint body 1. A rotating structure 4 is disposed on one side of the joint body 1. The rotating structure 4 includes a first connecting rod 401 disposed on one side of the joint body 1. A first hydraulic push rod 402 is disposed on one side of the first connecting rod 401. A second connecting rod 403 is disposed on the side of the joint body 1 away from the first connecting rod 401. A second connecting rod 403 is disposed on one side of the second connecting rod 403. There is a second hydraulic push rod 404. The first connecting rod 401 and the second connecting rod 403 are designed at a right angle. One side of the first hydraulic push rod 402 and the second hydraulic push rod 404 are connected to one side of the top of the support rod 3. The first hydraulic push rod 402 is rotatably connected to the first connecting rod 401 on one side, and the second hydraulic push rod 404 is rotatably connected to the second connecting rod 403 on one side. The first hydraulic push rod 402 and the second hydraulic push rod 404 are designed with an arc shape. The diameter of the second hydraulic push rod 404 is larger than the diameter of the first hydraulic push rod 402.

[0028] In the process of using the posture positioning robotic arm, in order to facilitate the adjustment of its positioning angle, it is desired to enable omnidirectional movement at the joint of the robotic arm. Therefore, a rotating structure 4 is set up so that two sets of hydraulic push rods are rotatably connected on one side of the connecting rod, and one side of the connecting rod is fixedly connected to one side of the top of the support rod 3. Both sets of hydraulic push rods are designed with arc shape, and the diameter of the second hydraulic push rod 404 is larger than the diameter of the second connecting rod 403. This makes it less likely for the two sets of hydraulic push rods to collide during rotation. This allows the two sets of hydraulic push rods to be activated separately or simultaneously, so that they push the support rod 3 and drive the ball 2 to move omnidirectionally inside the joint body 1, thereby greatly increasing the practicality of the device.

[0029] Reference Figure 1 , Figure 2 and Figure 5 As shown, a fixing rod 5 is fixed to the bottom end of the joint body 1, and a disassembly and assembly structure 6 is fixed to the bottom end of the fixing rod 5. The disassembly and assembly structure 6 includes a first mounting plate 601 fixed to the bottom end of the fixing rod 5 and a second mounting plate 602 fixed to the top end of the support rod 3. A first threaded hole 603 is opened inside the first mounting plate 601, and a second threaded hole 604 is evenly opened at the top end of the second mounting plate 602. The first threaded holes 603 are evenly distributed inside the first mounting plate 601, and the second threaded holes 604 are evenly distributed inside the second mounting plate 602.

[0030] The robotic arm is rotated and adjusted using a universal joint. Different sizes and lengths of robotic arms are required according to actual usage needs. To facilitate disassembly and assembly, a disassembly and assembly structure 6 is provided. A first mounting plate 601 is fixed to the bottom of the fixed rod 5, and a second mounting plate 602 is fixed to the top of the support rod 3. Threaded holes are provided inside both mounting plates, which facilitates the installation of the robotic arm on one side of the mounting plate with bolts for positioning and replacement. This prevents the robotic arm from shifting position during use, greatly increasing the practicality of the device.

[0031] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A pose positioning mechanical arm universal joint, comprising a joint body (1) and a ball (2); Its characterized in that: The inside of the joint body (1) is provided with the ball (2), the top end of the joint body (1) is fixed with a support rod (3), and one side of the joint body (1) is provided with a rotating structure (4); The rotating structure (4) comprises a first connecting rod (401) arranged on one side of the joint body (1), a first hydraulic push rod (402) arranged on one side of the first connecting rod (401), a second connecting rod (403) arranged on the side of the joint body (1) away from the first connecting rod (401), and a second hydraulic push rod (404) arranged on one side of the second connecting rod (403); The bottom end of the joint body (1) is fixed with a fixed rod (5), and the bottom end of the fixed rod (5) is fixed with a dismounting structure (6).

2. The pose positioning robotic arm gimbaling joint of claim 1, wherein: The diameter of the ball (2) is smaller than the diameter of the joint body (1), and the ball (2) is rotationally connected in the inside of the joint body (1).

3. The pose positioning robotic arm gimbaling joint of claim 1, wherein: The first connecting rod (401) and the second connecting rod (403) are designed at right angles, and one side of the first hydraulic push rod (402) and the second hydraulic push rod (404) is connected with one side of the top end of the support rod (3).

4. The pose positioning robotic arm gimbaling joint of claim 1, wherein: The first hydraulic push rod (402) is rotationally connected on one side of the first connecting rod (401), and the second hydraulic push rod (404) is rotationally connected on one side of the second connecting rod (403).

5. The pose positioning robotic arm gimbaling joint of claim 1, wherein: The first hydraulic push rod (402) and the second hydraulic push rod (404) are designed in a circular arc shape, and the diameter of the second hydraulic push rod (404) is greater than the diameter of the first hydraulic push rod (402).

6. The pose positioning robotic arm gimbaling joint of claim 1, wherein: The dismounting structure (6) comprises a first mounting plate (601) fixed to the bottom end of the fixed rod (5) and a second mounting plate (602) fixed to the top end of the support rod (3), a first threaded hole (603) is formed in the inside of the first mounting plate (601), and second threaded holes (604) are uniformly formed in the top end of the second mounting plate (602).

7. The pose positioning robotic arm gimbaling joint of claim 6, wherein: The first threaded holes (603) are distributed at equal intervals in the inside of the first mounting plate (601), and the second threaded holes (604) are distributed at equal intervals in the inside of the second mounting plate (602).

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