Arm link connection structure of multi-axis robot arm
The design of snap-fit rings, convenient connectors, and rotating mechanisms simplifies the connection of the multi-axis robotic arm, solves the problem of time-consuming disassembly and assembly in existing technologies, and enables rapid adjustment and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG QIUXIANG INFORMATION TECH CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-06-09
AI Technical Summary
The existing multi-axis robotic arms have complex arm connection methods, which leads to long maintenance and structural adjustment times, affecting equipment flexibility and production efficiency.
It adopts a snap ring, convenient plug and rotating mechanism, combined with bearing roller and locking disc design to achieve convenient plug and lock, simplifying the disassembly and assembly process.
It improves the flexibility and maintainability of multi-axis robotic arms, reduces disassembly and assembly time, and enhances the adaptability and ease of use of the equipment.
Smart Images

Figure CN224334483U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of multi-axis robotic arm technology, and specifically to a link connection structure for a multi-axis robotic arm. Background Technology
[0002] With the rapid development of modern industry and the continuous advancement of intelligent manufacturing, multi-axis robotic arms, as key automation equipment, play an indispensable role in many industries.
[0003] However, in current technologies, the connection methods for robotic arms are often quite traditional, employing complex bolt and nut fixing structures. This means that when performing maintenance, replacing parts, or readjusting the robotic arm structure according to different task requirements, operators need to spend a significant amount of time disassembling and installing numerous bolts. This not only makes the operation cumbersome but also requires the use of various specialized tools, increasing time costs and reducing the flexibility of equipment use. In the event of urgent production task adjustments or equipment malfunctions requiring repair, the lengthy disassembly and assembly process can cause production line shutdowns, resulting in economic losses. Utility Model Content
[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is a multi-axis robotic arm connection structure. It includes: a front arm, comprising a forearm, with a snap ring fixedly connected to the top of the forearm and a convenient insertion port fixedly connected to the top of the forearm; a rotating arm, the bottom surface of which is rotatably connected to the top surface of the front arm; the rotating arm includes a rotating mechanism and a power mechanism; the rotating mechanism includes a bearing ring, with a bearing roller snapped onto the outer wall of the bearing ring; a limiting block rotatably connected to the outer wall of the bearing roller; a fixed block slidably connected inside the bearing ring, and the fixed block penetrates the bearing ring and connects to the bearing roller; a locking disc slidably connected to the top of the inner wall of the bearing ring, and a groove inside the locking disc slidably connects to the shaft at the top of the fixed block; the inner wall of the snap ring is rotatably connected to the bearing roller; the fixed block's slidable connection within the bearing ring restricts its position; and the limiting block restricts the position of the bearing roller.
[0005] Preferably, a rotating bolt is rotatably connected to the side wall of the locking disc, and a latch is slidably connected inside the locking disc. The inner wall of the latch is threadedly connected to the outer wall of the rotating bolt. Through the threaded connection between the latch and the rotating bolt, the position of the latch can be adjusted by turning the rotating bolt.
[0006] Preferably, the power mechanism includes a rotating arm, and a drive motor is fixedly connected to the inner wall of the rotating arm. The bottom of the rotating arm is fixedly connected to the top of the bearing ring, the groove at the bottom of the rotating arm is slidably connected to the latch, and the outer wall of the drive motor shaft is engaged with the inner wall of the convenient connector. By setting the design of connecting the drive motor to the portable connector, the rotation between the drive motor and the forearm is not affected when the forearm is disassembled or assembled.
[0007] The beneficial effects of this utility model are as follows:
[0008] 1. By setting up a rotating mechanism, this utility model enables operators to separate and assemble the robotic arm without the need for complex tools and cumbersome procedures when maintenance, component replacement, or structural readjustment is required in actual operation scenarios. This not only saves a lot of time and costs but also improves the flexibility of the equipment, allowing the robotic arm to quickly adapt to changing work requirements.
[0009] 2. By setting up a portable connector, the flared design of the connector effectively avoids the problem of rotation failure caused by incorrect connection between the connector and the drive motor when disassembling and assembling the front arm. Operators can easily snap the drive motor shaft into the connector, ensuring a smooth and unobstructed disassembly and assembly process, and further improving the maintainability and ease of use of the entire robotic arm system. Attached Figure Description
[0010] Figure 1 This is a perspective view of the present invention;
[0011] Figure 2 This is a cross-sectional view of the present invention;
[0012] Figure 3 This is a schematic diagram of the front arm of this utility model;
[0013] Figure 4 This is a schematic diagram of the structure of the rotating arm of this utility model;
[0014] Figure 5 This is a schematic diagram of the rotating mechanism of this utility model;
[0015] Figure 6 This is a schematic diagram of the internal structure of the rotating mechanism of this utility model;
[0016] Figure 7 This is a schematic diagram of the front of the locking disc of this utility model;
[0017] Figure 8 This is a schematic diagram of the structure of the back of the locking disc of this utility model;
[0018] Figure 9 This is a schematic diagram of the power mechanism of this utility model.
[0019] In the diagram: 1. Front arm; 2. Rotating arm; 3. Rotating mechanism; 4. Power mechanism; 11. Front arm; 12. Snap ring; 13. Convenient insertion port; 31. Bearing roller; 32. Limiting block; 33. Fixing block; 34. Bearing ring; 35. Locking disc; 36. Rotating bolt; 37. Clamping tongue; 41. Rotating arm; 42. Drive motor. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example
[0021] Please see Figure 1 - Figure 9 This utility model provides a technical solution: a multi-axis robotic arm arm connection structure, including: a front arm 1, the front arm 1 including a forearm 11, a snap ring 12 fixedly connected to the top of the forearm 11, a convenient insertion port 13 fixedly connected to the top of the forearm 11, a rotating arm 2, the bottom surface of the rotating arm 2 being rotatably connected to the top surface of the front arm 1, the rotating arm 2 including a rotating mechanism 3 and a power mechanism 4, the rotating mechanism 3 including a bearing ring 34, a bearing roller 31 being snapped onto the outer wall of the bearing ring 34, and the outer wall of the bearing roller 31 being rotatably connected. The bearing ring 34 is connected to the limiting block 32, and the fixed block 33 is slidably connected to the bearing ring 34. The fixed block 33 passes through the bearing ring 34 and is connected to the bearing roller 31. The top of the inner wall of the bearing ring 34 is slidably connected to the locking disc 35, and the groove inside the locking disc 35 is slidably connected to the shaft at the top of the fixed block 33. The inner wall of the buckle ring 12 is slidably connected to the bearing roller 31. The design of the buckle ring 12 engaging with the bearing roller 31 ensures that the power transmission between the front arm 1 and the rotating arm 2 is not affected while being easy to disassemble and assemble.
[0022] The locking disc 35 is rotatably connected to the side wall by a rotating bolt 36, and the locking disc 35 is slidably connected to a latch 37 inside. The inner wall of the latch 37 is threadedly connected to the outer wall of the rotating bolt 36. Through the design of the bolt 36 and the latch 37 being bolted together, the latch 37 can be adjusted by rotating the rotating bolt 36, making the adjustment more convenient.
[0023] The power mechanism 4 includes a rotating arm 41, and a drive motor 42 is fixedly connected to the inner wall of the rotating arm 41. The bottom of the rotating arm 41 is fixedly connected to the top of the bearing ring 34, and the groove at the bottom of the rotating arm 41 is slidably connected to the latch 37. The outer wall of the shaft of the drive motor 42 is engaged with the inner wall of the convenient socket 13. The flared design of the inner wall of the convenient socket 13 prevents the convenient socket 13 from being incorrectly engaged with the drive motor 42 during the disassembly and assembly of the front arm 1, thus preventing the problem of rotation failure.
[0024] Working principle:
[0025] When using it, the first operation is to press the buckle ring 12 of the front arm 1 against the rotating mechanism 3 of the rotating arm 2. This operation is possible because the bearing roller 31 of the rotating mechanism 3 is not locked by the locking disc 35 at this time. Therefore, the bearing roller 31 has a certain amount of room to move into the rotating mechanism 3. With the help of this room to move, the front arm 1 and the rotating arm 2 can smoothly complete the snapping action. At the same time, the buckle ring 12 will lock the bearing roller 31. Meanwhile, since the inner wall of the convenient socket 13 adopts a flared design, the advantage of this design is that while the front arm 1 is snapped, the shaft of the drive motor 42 can be smoothly snapped into the convenient socket 13.
[0026] After the locking ring 12 successfully engages the bearing roller 31, the next step is to rotate the lever of the locking disc 35 to one side. The reason why rotating the lever produces the corresponding effect is that the groove at the bottom of the locking disc 35 adopts an arc-shaped groove design. When rotating the lever, based on the structural characteristics of this arc-shaped groove, the fixing block 33 will be pushed towards the bearing roller 31. As the fixing block 33 moves, the bearing roller 31 will lock the locking ring 12 and the connected forearm 11. However, since the bearing roller 31 itself is a circular structure, even after the above locking action is completed, the front arm 1 and the rotating arm 2 can still be driven by the drive motor 42 to drive the convenient connector 13, thereby driving the front arm 1 to rotate.
[0027] After completing the above locking operation, further operation is required to ensure that the front arm 1 and the rotating arm 2 are connected. Specifically, the rotating bolt 36 is tightened with a wrench. Since the latch 37 and the rotating bolt 36 are connected by threads, the latch 37 will move towards the rotating bolt 36 during the tightening process. Since the connection between the latch 37 and the rotating arm 41 has a groove, the latch 37 can achieve a locking state as it moves, so that the arm connection structure of the multi-axis robotic arm is in a stable and usable state.
[0028] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A link connection structure for a multi-axis robotic arm, characterized in that, include: The front arm (1) includes a forearm (11), the top of the forearm (11) is fixedly connected to a buckle ring (12), and the top of the forearm (11) is fixedly connected to a convenient socket (13). Rotating arm (2), the bottom surface of which is rotatably connected to the top surface of the front arm (1); The rotating arm (2) includes a rotating mechanism (3) and a power mechanism (4). The rotating mechanism (3) includes a bearing ring (34). A bearing roller (31) is attached to the outer wall of the bearing ring (34). A limiting block (32) is rotatably connected to the outer wall of the bearing roller (31). A fixing block (33) is slidably connected inside the bearing ring (34). The fixing block (33) passes through the bearing ring (34) and is connected to the bearing roller (31). A locking disc (35) is slidably connected to the top of the inner wall of the bearing ring (34). The groove inside the locking disc (35) is slidably connected to the shaft at the top of the fixing block (33).
2. The arm connection structure of the multi-axis robotic arm according to claim 1, characterized in that: The inner wall of the snap ring (12) is in rolling connection with the bearing roller (31).
3. The arm connection structure of the multi-axis robotic arm according to claim 1, characterized in that: The locking disc (35) is rotatably connected to a rotating bolt (36) on its side wall, and a latch (37) is slidably connected inside the locking disc (35), with the inner wall of the latch (37) threadedly connected to the outer wall of the rotating bolt (36).
4. The arm connection structure of the multi-axis robotic arm according to claim 1, characterized in that: The power mechanism (4) includes a rotary arm (41), and a drive motor (42) is fixedly connected to the inner wall of the rotary arm (41).
5. The arm connection structure of the multi-axis robotic arm according to claim 4, characterized in that: The bottom of the rotating arm (41) is fixedly connected to the top of the bearing ring (34), and the groove at the bottom of the rotating arm (41) is slidably connected to the latch (37).
6. The arm connection structure of the multi-axis robotic arm according to claim 4, characterized in that: The outer wall of the drive motor (42) shaft is engaged with the inner wall of the convenient socket (13).