High-stability polishing machine arm

By designing the mounting and limiting components, the problem of structural loosening of the grinding robot arm was solved, achieving high stability and easy maintenance, and ensuring the long-term efficient operation of the grinding robot arm.

CN224115826UActive Publication Date: 2026-04-14SHENZHEN HONGHAN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing grinding robot arm does not take into account all aspects of the grinding structure, resulting in loose connection structures, which affects long-term efficient operation and makes maintenance inconvenient.

Method used

The design incorporates mounting and limiting components, including connecting blocks, limiting rings, positioning blocks, limiting parts, reinforcing covers, and limiting components. These components are fixed together by bolts, and the elasticity of the return spring ensures stable installation and limiting, guaranteeing a secure connection for the grinder.

Benefits of technology

This improves the structural stability of the grinding robot arm, prevents loosening, extends its service life, facilitates maintenance and replacement, and ensures efficient operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a polishing machine arm with high stability, which relates to the field of polishing machine arms and comprises a mechanical arm, a fixing block and a polisher, a fixing seat is arranged below the mechanical arm, and a mounting component is arranged between the mechanical arm and the fixing seat. And the mounting assembly comprises a connecting block, a limiting ring, a positioning block, a limiting piece, a clamping block, a reinforcing cover and a square block. According to the high-stability polishing machine arm, by arranging the mounting assembly and the limiting assembly, in the using process of the polishing machine arm, the overall connection of the polishing machine arm structure is improved, so that the polishing machine arm has high stability, and the situation that the polishing machine arm topples over and is damaged in the subsequent using process is avoided; and meanwhile, certain detachability is achieved, a worker can conveniently replace and maintain a polishing structure of the polishing machine arm, efficient operation of the polishing machine arm is guaranteed, and the worker can conveniently use the polishing machine arm.
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Description

Technical Field

[0001] This utility model relates to the field of grinding robotic arms, specifically a highly stable grinding robotic arm. Background Technology

[0002] A grinding robotic arm is a robotic arm specifically designed for grinding operations. It combines advanced robotics technology and grinding processes to automatically and efficiently complete grinding tasks of various complex shapes. As a highly efficient and precise grinding device, the grinding robotic arm is widely used in various industrial fields.

[0003] However, current grinding robotic arms still have some shortcomings. The existing grinding robotic arms have not fully considered the grinding structure. If the grinding structure of the grinding robotic arm is not fully considered during use, the connection structure may not be tight enough, and the structure may loosen during subsequent grinding. It may also be inconvenient for workers to replace and maintain the grinding structure, resulting in the grinding robotic arm not being able to operate efficiently for a long time and making it inconvenient for workers to use the grinding robotic arm.

[0004] Therefore, there is an urgent need to improve this shortcoming. This utility model studies and improves the existing structure and its deficiencies, and provides a highly stable grinding robot arm. Utility Model Content

[0005] The purpose of this invention is to provide a highly stable grinding robot arm to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a highly stable grinding robot arm, comprising a robot arm, a fixed block, and a grinder. A fixed base is provided below the robot arm, and an installation assembly is provided between the robot arm and the fixed base. The installation assembly includes a connecting block, a limiting ring, a positioning block, a limiting component, a locking block, a reinforcing cover, and a square block. The fixed block is welded to the end of the robot arm, and a square plate is welded to the side of the fixed block. An installation component is rotatably connected to the side of the square plate. The grinder is locked to the outside of the installation component, and a limiting assembly is provided on the side of the grinder. The limiting assembly includes a connecting component, a movable component, a limiting block, a fixed frame, a locking component, a fixed rod, and a return spring.

[0007] Furthermore, the connecting block is rotatably connected to the bottom outer side of the robotic arm, and a limit ring is welded to the bottom of the connecting block. The connecting block is engaged with the fixed seat through the limit ring, and a positioning block is engaged with the bottom of the connecting block. The positioning block is also welded to the top center of the fixed seat.

[0008] Furthermore, the connecting block is provided with limiting members on its four sides, and the bottom of the limiting member is engaged with the fixed seat. The side of the fixed seat is fixedly connected to the bottom of the limiting member by bolts. Moreover, the side of the limiting member is welded with a locking block, and the limiting member is engaged with the connecting block by the locking block.

[0009] Furthermore, a reinforcing cover is provided on the outside of the connecting block, and there are four reinforcing covers. The four reinforcing covers are respectively snapped into the four corners of the connecting block, and square blocks are fixedly connected to the sides of the reinforcing covers and the fixing base, and the square blocks are fixedly connected to each other by bolts.

[0010] Furthermore, a support frame is fixedly connected to the inner side of the fixed block, and a drive motor is provided above the support frame. The output shaft of the drive motor is fixedly connected to a rotating component through a coupling, and the end of the rotating component is rotatably connected to a rotating component through bevel gear meshing.

[0011] Furthermore, the rotating component and the end of the rotating component are rotatably connected to a fixing component, and the fixing component is welded to the inner wall of the fixing block. The rotating component is rotatably connected to the square plate for limiting, and the end of the rotating component is welded to the center of the side of the mounting component.

[0012] Furthermore, the connector is welded to the four sides of the square plate, and the side of the connector is rotatably connected to a movable part via a damping shaft. A limit block is welded to one side of the movable part, and the limit block is engaged with one side of the connector.

[0013] Furthermore, a fixing frame is welded to the side of the connector, and a locking member is slidably connected to the inner side of the fixing frame, and the end of the locking member passes through the connector and is locked to the limiting block.

[0014] Furthermore, a fixing rod is fixedly connected to the inner side of the fixing frame, and the fixing rod is connected through the locking member. A return spring is provided on one side of the locking member, and the return spring is located on the outer side of the fixing rod.

[0015] This invention provides a highly stable grinding robot arm, which has the following beneficial effects:

[0016] 1. This utility model is equipped with an installation component. During the use of the grinding robot arm, the bottom of the limiting component is inserted into the fixed base, and the fixed base and the limiting component are fixedly connected by bolts. The reinforcing cover and the square block fixedly connected to the side of the fixed base are also fixed by bolts, thereby completing the stable installation of the robot arm. The structure is simple, improves the overall connection of the grinding robot arm structure, and makes the grinding robot arm have high stability performance. It avoids tipping and damage during subsequent use, extends the service life of the grinding robot arm, and makes it easier for workers to use the grinding robot arm.

[0017] 2. This utility model is equipped with a limiting component. During the use of the grinding robot arm, the elastic force of the return spring is used to restrict the limiting block with the locking component, thereby ensuring that the grinder is firmly limited and the structure is tightly connected, preventing the structure from loosening during subsequent grinding. It also has a certain degree of disassembly, which makes it easy for the staff to replace and maintain the grinding structure of the grinding robot arm, ensuring the efficient operation of the grinding robot arm and making it convenient for the staff to use the grinding robot arm. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the appearance of a highly stable grinding robot arm according to the present invention.

[0019] Figure 2 This is a three-dimensional partial sectional view of the mechanical arm-mounting assembly of a high-stability grinding robot arm according to this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of a fixing block-limiting component for a highly stable grinding robot arm according to this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of a square plate-limiting component for a highly stable grinding robot arm according to this utility model.

[0022] In the diagram: 1. Robotic arm; 2. Fixed base; 3. Mounting assembly; 301. Connecting block; 302. Limiting ring; 303. Positioning block; 304. Limiting component; 305. Engaging block; 306. Reinforcing cover; 307. Square block; 4. Fixing block; 5. Square plate; 6. Mounting component; 7. Support frame; 8. Drive motor; 9. Rotating component; 10. Rotating component; 11. Fixing component; 12. Grinding tool; 13. Limiting assembly; 1301. Connecting component; 1302. Moving component; 1303. Limiting block; 1304. Fixing frame; 1305. Engaging component; 1306. Fixing rod; 1307. Return spring. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figure 1 and Figure 2As shown, a highly stable grinding robot arm includes a robot arm 1, a fixed block 4, and a grinder 12. A fixed base 2 is provided below the robot arm 1, and a mounting assembly 3 is provided between the robot arm 1 and the fixed base 2. The mounting assembly 3 includes a connecting block 301, a limiting ring 302, a positioning block 303, a limiting component 304, a locking block 305, a reinforcing cover 306, and a square block 307. The connecting block 301 is rotatably connected to the bottom outer side of the robot arm 1, and the limiting ring 302 is welded to the bottom of the connecting block 301. The connecting block 301 is locked to the fixed base 2 through the limiting ring 302. The bottom of the connecting block 301 is locked to the positioning block 303, and the positioning block 303 is welded to the fixed base 2. At the top center of the fixed seat 2, the four sides of the connecting block 301 are provided with limiting members 304, and the bottom of the limiting members 304 is engaged with the fixed seat 2. The side of the fixed seat 2 is fixedly connected to the bottom of the limiting members 304 by bolts. The side of the limiting members 304 is welded with a locking block 305. The limiting members 304 are engaged with the connecting block 301 by the locking block 305. The outside of the connecting block 301 is provided with a reinforcing cover 306, and there are four reinforcing covers 306. The four reinforcing covers 306 are engaged with the four corners of the connecting block 301 respectively. The reinforcing covers 306 and the side of the fixed seat 2 are both fixedly connected with square blocks 307, and the square blocks 307 are fixedly connected with each other by bolts.

[0025] The specific operation is as follows: The operator uses the installation component 3 to connect the robotic arm 1 and the fixed base 2. The limiting ring 302 welded to the bottom of the connecting block 301 is used to engage the connecting block 301 with the fixed base 2. The positioning block 303 welded to the center of the top of the fixed base 2 is used to determine the orientation of the connecting block 301. Then, the locking block 305 is used to engage the limiting member 304 with the side of the connecting block 301, and the bottom of the limiting member 304 is inserted into the fixed base 2. The fixed base 2 and the limiting member 304 are fixedly connected with bolts. Next, four reinforcing covers 306 are respectively engaged at the four corners of the connecting block 301. The reinforcing covers 306 and the square blocks 307 that are fixedly connected to the side of the fixed base 2 are fixed with bolts. This completes the stable installation of the robotic arm 1. The structure is simple and convenient for operators to use the grinding robotic arm.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, the fixing block 4 is welded to the end of the robotic arm 1, and a square plate 5 is welded to the side of the fixing block 4. A mounting piece 6 is rotatably connected to the side of the square plate 5. A support frame 7 is fixedly connected to the inner side of the fixing block 4, and a drive motor 8 is positioned above the support frame 7. The output shaft of the drive motor 8 is fixedly connected to a rotating part 9 via a coupling. A rotating part 10 is rotatably connected to the end of the rotating part 9 via a bevel gear. A fixing piece 11 is rotatably connected to the ends of the rotating part 9 and the rotating part 10. The fixing piece 11 is welded to the inner wall of the fixing block 4, and the rotating part 10 is rotatably connected to the square plate 5. The end of the rotating part 10 is welded to the center of the side of the mounting piece 6. A grinder 12 is engaged with the outer side of the mounting piece 6, and a limiting component 13 is provided on the side of the grinder 12. The limiting component 13 includes a connecting part 1301, a movable part 1302, a limiting block 1303, and a fixing frame 1. 304, engaging component 1305, fixing rod 1306, and return spring 1307; connecting component 1301 is welded to the four sides of square plate 5, and a movable component 1302 is rotatably connected to the side of connecting component 1301 via a damping shaft; a limiting block 1303 is welded to one side of the surface of movable component 1302, and the limiting block 1303 engages with one side of connecting component 1301; a fixing frame 1304 is welded to the side of connecting component 1301, and the fixing... The inner side of the fixed frame 1304 is slidably connected to a locking member 1305, and the end of the locking member 1305 passes through the connector 1301 and is locked to the limiting block 1303. The inner side of the fixed frame 1304 is fixedly connected to a fixing rod 1306, and the fixing rod 1306 is connected to the locking member 1305. A return spring 1307 is provided on one side of the locking member 1305, and the return spring 1307 is provided on the outside of the fixing rod 1306.

[0027] The specific operation is as follows: During subsequent use, the operator can engage the grinder 12 on the outside of the mounting part 6 and use the limiting component 13 to limit the grinder 12. The operator then moves the engaging part 1305, which is engaged inside the fixed frame 1304, causing the return spring 1307 on the side of the engaging part 1305 to be compressed. Then, by rotating the movable part 1302, the limiting block 1303 welded to one side of the movable part 1302 engages with one side of the connecting part 1301. Finally, the operator releases the movement of the engaging part 1305, causing the engaging part to engage. Under the elastic force of the return spring 1307, 1305 gradually returns to its original position and restricts the limit block 1303, thereby making the grinder 12 securely limited. Then, the operator uses the drive motor 8 to drive the rotating part 9 to rotate, and under the meshing rotation of the bevel gear, the rotating part 10 follows the rotating part 9 to rotate, thereby causing the mounting part 6 welded to the end of the rotating part 10 to rotate. As the mounting part 6 rotates, the grinder 12, which is engaged on its outer side, gradually rotates along the inner side of the limiting component 13. The structure is simple and convenient for the operator to use the grinding robot arm.

[0028] In summary, this highly stable grinding robot arm, according to Figures 1-4The structure shown illustrates that during the use of the grinding robot arm, the operator first connects the robot arm 1 and the fixed base 2 using the mounting component 3. The limiting ring 302 welded to the bottom of the connecting block 301 engages with the fixed base 2, and the positioning block 303 welded to the center of the top of the fixed base 2 determines the orientation of the connecting block 301. Then, the locking block 305 engages the limiting member 304 with the side of the connecting block 301, inserting the bottom of the limiting member 304 into the fixed base 2, and securing the fixed base 2 and limiting member 304 with bolts. Next, four reinforcing covers 306 are respectively engaged at the four corners of the connecting block 301, and bolts are used to fix the reinforcing covers 306 to the square blocks 307 that are fixedly connected to the side of the fixed base 2, thus completing the stable installation of the robot arm 1. In subsequent use, the operator can engage the grinder 12 with the outside of the mounting component 6 and use the limiting component 13 to limit the grinder 12. In this position, the worker moves the engaging component 1305 connected to the inner side of the fixed frame 1304, causing the return spring 1307 on the side of the engaging component 1305 to be compressed. Then, by rotating the movable component 1302, the limiting block 1303 welded to one side of the movable component 1302 engages with one side of the connecting component 1301. Next, the movement of the engaging component 1305 is released, causing the engaging component 1305 to gradually return to its original position under the elastic force of the return spring 1307, thus achieving the desired position. The limiting block 1303 restricts the grinder 12, thus securing it in place. Then, the operator uses the drive motor 8 to drive the rotating part 9 to rotate, and under the meshing rotation of the bevel gear, the rotating part 10 rotates along with the rotating part 9, thereby causing the mounting part 6 welded to the end of the rotating part 10 to rotate. As the mounting part 6 rotates, the grinder 12, which is engaged on its outer side, gradually rotates along with it on the inner side of the limiting component 13. The structure is simple and convenient for operators to use the grinding robot arm.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A highly stable grinding robot arm, comprising a robotic arm (1), a fixed block (4), and a grinder (12), characterized in that, A fixed base (2) is provided below the robotic arm (1), and an installation assembly (3) is provided between the robotic arm (1) and the fixed base (2). The installation assembly (3) includes a connecting block (301), a limiting ring (302), a positioning block (303), a limiting member (304), a locking block (305), a reinforcing cover (306), and a square block (307). The fixed block (4) is welded to the end of the robotic arm (1), and a square plate is welded to the side of the fixed block (4). (5), and the side of the square plate (5) is rotatably connected to the mounting part (6), the grinder (12) is connected to the outside of the mounting part (6), and the side of the grinder (12) is provided with a limiting component (13), and the limiting component (13) includes a connector (1301), a movable part (1302), a limiting block (1303), a fixing frame (1304), a locking part (1305), a fixing rod (1306) and a return spring (1307).

2. The highly stable grinding robot arm according to claim 1, characterized in that, The connecting block (301) is rotatably connected to the bottom outer side of the robotic arm (1), and a limiting ring (302) is welded to the bottom of the connecting block (301). The connecting block (301) is engaged with the fixed seat (2) through the limiting ring (302). A positioning block (303) is engaged with the bottom of the connecting block (301), and the positioning block (303) is welded to the top center of the fixed seat (2).

3. The highly stable grinding robot arm according to claim 1, characterized in that, The connecting block (301) is provided with limiting members (304) on its four sides, and the bottom of the limiting member (304) is engaged with the fixed seat (2). The side of the fixed seat (2) is fixedly connected to the bottom of the limiting member (304) by bolts. The side of the limiting member (304) is welded with a locking block (305), and the limiting member (304) is engaged with the connecting block (301) through the locking block (305).

4. The highly stable grinding robot arm according to claim 1, characterized in that, The outer side of the connecting block (301) is provided with a reinforcing cover (306), and there are four reinforcing covers (306). The four reinforcing covers (306) are respectively snapped and connected to the four corners of the connecting block (301). The sides of the reinforcing cover (306) and the fixing seat (2) are both fixedly connected with square blocks (307), and the square blocks (307) are fixedly connected to each other by bolts.

5. The highly stable grinding robot arm according to claim 1, characterized in that, The inner side of the fixed block (4) is fixedly connected to a support frame (7), and a drive motor (8) is provided above the support frame (7). The output shaft of the drive motor (8) is fixedly connected to a rotating part (9) through a coupling, and the end of the rotating part (9) is rotatably connected to a rotating part (10) through bevel gear meshing.

6. A highly stable grinding robot arm according to claim 5, characterized in that, The ends of the rotating part (9) and the rotating part (10) are rotatably connected to the fixing part (11), and the fixing part (11) is welded to the inner wall of the fixing block (4). The rotating part (10) is limited to the rotating part (5), and the end of the rotating part (10) is welded to the center of the side of the mounting part (6).

7. The highly stable grinding robot arm according to claim 1, characterized in that, The connector (1301) is welded to the four sides of the square plate (5), and the side of the connector (1301) is rotatably connected to the movable part (1302) through the damping shaft. A limit block (1303) is welded to one side of the surface of the movable part (1302), and the limit block (1303) is engaged with one side of the connector (1301).

8. The highly stable grinding robot arm according to claim 1, characterized in that, The side of the connector (1301) is welded with a fixing frame (1304), and the inner side of the fixing frame (1304) is engaged and slidably connected with a locking member (1305), and the end of the locking member (1305) passes through the connector (1301) and engages with the limiting block (1303).

9. A highly stable grinding robot arm according to claim 1, characterized in that, A fixing rod (1306) is fixedly connected to the inner side of the fixing frame (1304), and the fixing rod (1306) is connected through the locking member (1305). A return spring (1307) is provided on one side of the locking member (1305), and the return spring (1307) is provided on the outer side of the fixing rod (1306).