A joint for a mechanical arm that facilitates splicing

Abstract

The utility model relates to technical field of mechanical arm especially, it relates to a joint for mechanical arm convenient to splice, solved the joint splicing operation complex of mechanical arm in the prior art, poor structural stability, and end effector replacement time -consuming and tedious, difficult to adapt to different operation scene switching problem. A joint for mechanical arm convenient to splice, including mechanical arm, both sides of the middle part of mechanical arm are installed with a set of locking structure respectively, the one end of mechanical arm top is installed with quick -release structure, and the mechanical arm is installed with the clamping claw through quick -release structure. The utility model discloses through locking structure and realizes mechanical arm joint quick splicing and firm locking, and the operation does not need complicated tool and prevents component interference, through quick -release structure realizes clamping claw quick assembly and general installation, simplifies splicing process, improves stability, shortens end effector replacement time, satisfies the flexible switching demand of mechanical arm many scenes, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, specifically to a joint for a robotic arm that is easy to assemble. Background Technology

[0002] In modern industrial production and various automated operation scenarios, robotic arms are being used more and more widely, and the performance of the robotic arm joints plays a key role in its overall performance. Robotic arms need to have the ability to be flexibly assembled and to easily replace end effectors in order to adapt to diverse work tasks.

[0003] For example, a Chinese patent proposes a multi-degree-of-freedom robotic arm joint structure, patent publication number CN219426829U. This patent achieves multi-degree-of-freedom movement through a specific structural design, which can meet the needs of complex actions to a certain extent. However, this patent only addresses the degree of freedom of joint movement and does not optimize the rapid assembly of robotic arm joints or the convenient replacement of end effectors. In practical use, when it is necessary to adjust the robotic arm structure to adapt to different work scenarios or quickly change different types of gripping tools, the operation process is cumbersome and time-consuming, making it difficult to meet the requirements of efficient operation.

[0004] Therefore, we propose a joint for robotic arms that is easy to assemble in order to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a robotic arm joint that is easy to assemble, which solves the problems of complex joint assembly operations, poor structural stability, time-consuming and cumbersome end effector replacement, and difficulty in adapting to different work scenarios in the prior art.

[0006] (II) Technical Solution To achieve the above objectives, the present invention adopts the following technical solution: A joint for a robotic arm that is easy to assemble, comprising a robotic arm, and further comprising: A locking mechanism is installed on each side of the middle section of the robotic arm; A quick-release structure is installed at one end of the top of the robotic arm, and a gripper is installed on the robotic arm through the quick-release structure; A set of connecting seats is fixedly installed on each side of the robotic arm near the two sets of locking structures; The connector is cylindrical and has a slot at its bottom.

[0007] Preferably, the locking structure includes a sleeve, a first slider and a second slider. A set of sleeves is fixedly installed on the robotic arm near the connection of the two sets of locking structures, and the connecting seat is sleeved with the sleeve. The inside of the sleeve is hollowed out, and a first slider and a second slider are slidably installed on both sides of the middle part of the sleeve, respectively. Both the first and second sliders have threaded openings in the middle.

[0008] Preferably, a set of threaded screws is rotatably mounted between the first slider and the second slider through a threaded opening; A handle is fixedly installed on the side of the threaded screw near the second slider, and the handle is cross-shaped.

[0009] Preferably, the quick-release structure includes an upper base and a pin, with the upper base fixedly installed at one end of the top of the robotic arm, and the interior of the upper base is hollowed out; The upper base has a through-hole in the middle, and a set of pins are inserted into the hole. Both ends of the pin pass through both sides of the upper base.

[0010] Preferably, a lever is hinged to the side of the upper base near the pin, and the lever is hinged to the upper base and the end of the pin is hinged together by a connecting rod. The quick-release structure has an internal socket.

[0011] Preferably, the center of the socket is raised, and the raised part is hollowed out; The socket protrusion has a slot near the center, and the pin engages with the slot of the socket.

[0012] (III) Beneficial Effects This utility model has at least the following beneficial effects: Easy to assemble and highly stable: The initial positioning is achieved by pre-fitting the connecting seat and the sleeve in the locking structure. With the help of the handle, the threaded screw drives the slider to clamp and release the connecting seat. The robotic arm joints can be quickly assembled and disassembled without complicated tools. At the same time, the cylindrical connecting seat ensures coaxiality, the slider clamping design ensures a stable lock, and it can also avoid component interference, taking into account both operation convenience and structural stability.

[0013] This utility model also has the following beneficial effects: The end effector is highly efficient and adaptable: the quick-release structure uses a lever linkage to drive the pin and socket to engage and disengage, eliminating the repeated tightening steps of traditional bolt connections and significantly shortening the time for changing the gripper; in addition, the socket and upper base are positioned and the standardized interface design not only prevents the pin from slipping accidentally, but also supports universal installation of different types of grippers, meeting the needs of switching between multiple operation scenarios of the robotic arm. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a partial structural diagram of the robotic arm of this utility model; Figure 3 This is a partial structural diagram of the robotic arm of this utility model; Figure 4 This is a schematic diagram of the locking structure of this utility model; Figure 5 This is a schematic diagram of the quick-release structure of this utility model.

[0016] In the diagram: 1. Robotic arm; 2. Locking structure; 3. Quick-release structure; 4. Gripping claw; 5. Connecting seat; 6. Sleeve; 7. First slider; 8. Second slider; 9. Threaded screw; 10. Handle; 11. Upper base; 12. Pin; 13. Lever; 14. Socket. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Reference Figure 1-5 A joint for a robotic arm that is easy to assemble, comprising a robotic arm 1, and further comprising: A set of locking structures 2 is installed on each side of the middle part of the robotic arm 1; One end of the top of the robotic arm 1 is equipped with a quick-release structure 3, and the robotic arm 1 is equipped with a gripper 4 through the quick-release structure 3; A set of connecting seats 5 are fixedly installed on both sides of the robotic arm 1 near the two sets of locking structures 2; The connector 5 is cylindrical, and the bottom of the connector 5 has a slot. The cylindrical structure makes it easy to fit with subsequent parts, reducing assembly difficulty, ensuring coaxiality during connection, and improving the overall structural stability of the robotic arm joint. On the other hand, the slot design at the bottom of the connector 5 can provide clearance space for related parts during assembly, avoiding interference between parts. At the same time, it can also reduce the weight of the connector 5 to a certain extent, taking into account both structural strength and lightweight requirements, and providing a foundation for the flexible operation of the robotic arm 1.

[0019] Furthermore, the locking structure 2 includes a sleeve 6, a first slider 7 and a second slider 8. A set of sleeves 6 are fixedly installed on the robotic arm 1 near the connection of the two sets of locking structures 2, and the connecting seat 5 is sleeved with the sleeve 6. The inside of the sleeve 6 is hollowed out, and a first slider 7 and a second slider 8 are slidably installed on both sides of the middle part of the sleeve 6 respectively; Both the first slider 7 and the second slider 8 have threaded openings in the middle. The connecting seat 5 is sleeved with the sleeve 6. This sleeved connection method can realize the rapid initial connection between the robotic arm 1 and the locking structure 2 without complicated alignment operations. At the same time, the sleeve 6 is hollowed out, and the first slider 7 and the second slider 8 with threaded openings in the middle are slidably installed on both sides of the middle. The hollowed-out design provides sufficient space for the sliding of the first slider 7 and the second slider 8, while the setting of the threaded openings lays the foundation for the subsequent movement of the two sliders by the threaded screw 9. The sliding of the sliders can realize the clamping or loosening of the connecting seat 5, thereby realizing the core locking function of the locking structure 2. The structure is compact and highly functional, which can effectively ensure the stability of the robotic arm joints after splicing.

[0020] Furthermore, a set of threaded screws 9 are rotatably installed between the first slider 7 and the second slider 8 through a threaded opening; A handle 10 is fixedly installed on the side of the threaded screw 9 near the second slider 8. The handle 10 is cross-shaped. When the handle 10 is rotated, the threaded screw 9 can be driven to rotate synchronously. Since the threaded screw 9 is engaged with the threaded openings of the first slider 7 and the second slider 8, the threaded rotation can be converted into the relative sliding of the first slider 7 and the second slider 8 along the sleeve 6, thereby realizing the clamping, locking or loosening and disassembling of the connecting seat 5. The operation is simple and convenient, without the need for complicated tools. Moreover, the cross-shaped handle 10 increases the force application area of ​​the hand, reduces the force intensity when rotating, and improves the comfort and efficiency of operation. Even in working conditions with limited space, the locking or unlocking operation can be easily completed, further optimizing the splicing convenience of the robotic arm joint.

[0021] Furthermore, the quick-release structure 3 includes an upper base 11 and a pin 12. The upper base 11 is fixedly installed at one end of the top of the robotic arm 1, and the interior of the upper base 11 is hollowed out. The upper base 11 has a through hole in the middle, and a set of pins 12 are inserted into the hole. Both ends of the pin 12 pass through both sides of the upper base 11. The upper base 11 has a through-hole in the middle and the pin 12 is inserted into the hole. The two ends of the pin 12 pass through both sides of the upper base 11. The hollowed-out upper base 11 can provide space for the subsequent socket 14 to be connected, realizing the initial assembly of the quick-release structure 3 with the external components. The through-hole design of the pin 12 can fix or separate the upper base 11 and the socket 14 by inserting and removing the pin 12. Compared with traditional bolt connection, it saves the process of repeatedly tightening the bolt, shortens the replacement or disassembly time of the gripper 4, meets the needs of the robotic arm to replace the end effector in different working scenarios, and improves the operational flexibility and adaptability of the robotic arm.

[0022] Furthermore, a lever 13 is hinged to the side of the upper base 11 near the pin 12, and the lever 13 is hinged to the upper base 11 and connected to the end of the pin 12 via a connecting rod. The quick-release structure 3 has a socket 14 internally connected to it. The linkage transmission structure converts the rotation of the lever 13 into the linear movement of the pin 12. The operator only needs to rotate the lever 13 to control the insertion and removal of the pin 12 in the socket, without having to pull the pin 12 directly. Especially when the pin 12 is tightly fitted, the lever 13 can act as a force-saving lever, reducing the difficulty of operation. At the same time, by controlling the movement of the pin 12 through the lever 13, the position of the pin 12 can be controlled, avoiding deviation or jamming during the insertion and removal of the pin 12, and ensuring the reliability of the locking of the quick-release structure 3. In addition, the socket 14 internally connected to the quick-release structure 3 provides a standardized interface for the installation of components such as the gripper 4, which facilitates the universal installation of different types of grippers 4 and further expands the application range of the robotic arm.

[0023] Furthermore, the center of the socket 14 is raised, and the raised part is hollowed out; The socket 14 has a slot near the center of the protrusion, and the pin 12 engages with the slot of the socket 14. This provides a positioning effect when the socket 14 is fitted with the upper base 11, preventing loosening or displacement after fitting and improving the overall connection stability of the quick-release structure 3. At the same time, the slot near the center of the protrusion, with the pin 12 engaging with it, limits the pin 12 when it is inserted into the socket of the upper base 11 and engaged with the slot of the socket 14. This prevents the pin 12 from sliding accidentally due to vibration or other factors during the operation of the robotic arm, thus ensuring the locking reliability of the quick-release structure 3, ensuring the stable operation of the gripper 4, and avoiding operational errors or safety hazards caused by loose connections.

[0024] In summary: When it is necessary to assemble the robotic arm joint, the connecting seat 5 and the sleeve 6 are pre-fitted together to achieve initial positioning. At this time, by turning the handle 10, the threaded screw 9 is driven to rotate synchronously. Since the threaded screw 9 is engaged with the threaded openings of the first slider 7 and the second slider 8, the threaded rotation is converted into the relative sliding of the first slider 7 and the second slider 8 along the sleeve 6, thereby clamping the connecting seat 5 and achieving a stable lock between the robotic arm 1 and the locking structure 2, realizing the splicing and fixing of the robotic arm joint. When it is necessary to disassemble the robotic arm joint, turn the handle 10 in the opposite direction to drive the threaded screw 9 to rotate in the opposite direction, so that the first slider 7 and the second slider 8 slide relative to each other along the sleeve 6, releasing the clamping of the connecting seat 5, thereby releasing the lock and realizing the disassembly of the robotic arm joint. When it is necessary to install the gripper 4, the socket 14 is pre-fitted into the upper base 11 to achieve initial assembly. At this time, rotating the lever 13 causes the pin 12 to slide inward along the insertion hole of the upper base 11 via the linkage, so that the pin 12 is engaged in the slot at the protrusion of the socket 14; the slot limits the pin 12, preventing the pin 12 from sliding accidentally, thus fixing the upper base 11 to the socket 14 and achieving stable installation of the clamping claw 4. When it is necessary to replace the clamping claw 4, rotating the lever 13 in the opposite direction causes the pin 12 to slide outward along the insertion hole of the upper base 11 via the linkage, so that the pin 12 is disengaged from the socket 14. The slot is cut; at this time, the socket 14 is released from the upper base 11, and the socket 14 can be removed from the upper base 11. After replacing the new clamping claw 4 with the socket 14, the above installation steps are repeated to achieve quick replacement of the clamping claw 4. When the device is working, the handle 10 of the locking structure 2 is rotated to drive the slider to clamp, completing the splicing and fixing of the robotic arm 1 and ensuring the stability of the overall structure of the robotic arm; then the lever 13 of the quick-release structure 3 is rotated to drive the pin 12 to engage, realizing the installation of the clamping claw 4. When it is necessary to adjust the structure of the robotic arm or change the working tool, the handle 10 of the locking structure 2 can be operated in reverse to disassemble the robotic arm joint, and the lever 13 of the quick-release structure 3 can be operated in reverse to quickly replace the clamping claw 4, ultimately realizing the flexible splicing of the robotic arm and the quick replacement of the end effector, adapting to the needs of different working scenarios.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A joint for a robotic arm that is easy to assemble, comprising a robotic arm (1), characterized in that, Also includes: A set of locking structures (2) are installed on both sides of the middle part of the robotic arm (1); The top end of the robotic arm (1) is equipped with a quick-release structure (3), and the robotic arm (1) is equipped with a gripper (4) through the quick-release structure (3). A set of connecting seats (5) are fixedly installed on both sides of the robotic arm (1) near the two sets of locking structures (2); The connecting seat (5) is cylindrical, and the bottom end of the connecting seat (5) is provided with a groove.

2. The easily assembled robotic arm joint according to claim 1, characterized in that, The locking structure (2) includes a sleeve (6), a first slider (7) and a second slider (8). The robotic arm (1) is fixedly installed with a set of sleeves (6) near the connection of the two sets of locking structures (2), and the connecting seat (5) is sleeved with the sleeve (6). The sleeve (6) is hollowed out, and a first slider (7) and a second slider (8) are slidably installed on both sides of the middle part of the sleeve (6). Both the first slider (7) and the second slider (8) have threaded openings in the middle.

3. A robotic arm joint for easy assembly according to claim 2, characterized in that, A set of threaded screws (9) is rotatably installed between the first slider (7) and the second slider (8) through a threaded opening; A handle (10) is fixedly installed on the side of the threaded screw (9) near the second slider (8), and the handle (10) is cross-shaped.

4. A robotic arm joint for easy assembly according to claim 1, characterized in that, The quick-release structure (3) includes an upper base (11) and a pin (12). The upper base (11) is fixedly installed at one end of the top of the robotic arm (1), and the interior of the upper base (11) is hollowed out. The upper base (11) has a through hole in the middle, and a set of pins (12) are inserted into the hole. Both ends of the pin (12) pass through both sides of the upper base (11).

5. A robotic arm joint for easy assembly according to claim 4, characterized in that, A lever (13) is hinged to the side of the upper base (11) near the pin (12), and the lever (13) is hinged to the upper base (11) and the end of the pin (12) is hinged together by a connecting rod. The quick-release structure (3) has a socket (14) inside.

6. A robotic arm joint for easy assembly according to claim 5, characterized in that, The socket (14) has a raised center, and the raised part is hollowed out; The socket (14) has a slot near the center of the protrusion, and the pin (12) is engaged with the slot of the socket (14).

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