A suspended robotic arm with balancing function

By adding a balancing module to the gripping part of the suspended robotic arm, and using a rotating frame and counterweights to adjust the center of gravity, the problem of center of gravity shift during gripping was solved, wear was reduced, and the service life of the equipment was extended.

CN224445989UActive Publication Date: 2026-07-03ZHENGZHOU CENNAI TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU CENNAI TECHNOLOGY CO LTD
Filing Date
2025-07-26
Publication Date
2026-07-03

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Abstract

This utility model relates to a suspended robotic arm with a balancing function. It includes a gripping part and a connecting rod for mounting the gripping part. The connecting rod also has a balancing module, which contains a balancing block. The position of the balancing block within the balancing module is adjusted according to the center of gravity of the object being gripped. Essentially, a balancing module is added to the gripping part of the robotic arm. The balancing module adjusts the center of gravity of the entire gripping part by changing the position of the internal counterweight, thereby achieving the effect of balancing the center of gravity of the object.
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Description

Technical Field

[0001] This utility model relates to gripping devices in mechanical equipment, specifically a suspended robotic arm with balancing function. Background Technology

[0002] Robotic arms are a common type of mechanical equipment in the field of machinery. Originating in industry, they are primarily used for grasping, moving objects, or operating tools. They can be programmed to perform various pre-defined operations. They can replace heavy human labor to achieve mechanization and automation of production, protect personnel safety when operating in hazardous environments, and significantly improve work efficiency.

[0003] A suspended robotic arm is a robotic arm structure in which the gripping part is located below the overall equipment, and its arm is located above. It is mainly used for gripping and transporting objects. In actual operation, the gripping part has certain requirements for the gripping part of the object. It needs to grip the center of gravity of the object as much as possible to ensure the relative balance of the gripping part. However, in actual operation, the gripping part of some objects is not the center of gravity of the object. In this case, the center of gravity will shift during gripping and transportation, and a certain shearing force will be generated on the object itself and the arm that is connected to it. Over time, wear and tear will occur between the gripping part and the arm, affecting the service life of the overall equipment. Summary of the Invention

[0004] This utility model is a suspended robotic arm with a balancing function. It adds a balancing module to the gripping part of the robotic arm. The balancing module adjusts the center of gravity of the entire gripping part by changing the position of the internal counterweight, so as to achieve the effect of balancing the center of gravity of the object.

[0005] The present invention adopts the following technical solution:

[0006] A suspended robotic arm with balancing function includes a gripping part and a connecting rod for mounting the gripping part. The connecting rod is also provided with a balancing module, and the balancing module contains a balancing block. The position of the balancing block within the balancing module is adjusted according to the center of gravity of the object being gripped.

[0007] The balancing module includes a columnar shell, which is mounted on a connecting rod above the gripping part. The connecting rod passes through the center of the shell, and the interior of the shell has a hollow structure. The balancing block is located inside the hollow part of the shell.

[0008] The housing is equipped with a rotating frame for mounting the balance weight. The rotating frame includes a sliding sleeve at the center and a bracket on the sliding sleeve. The sliding sleeve corresponds to a connecting rod inside the housing and rotates around the connecting rod. The bracket is located on one side of the sliding sleeve, and the balance weight is mounted on the bracket.

[0009] Furthermore, the bracket is a square frame structure, and the top and bottom of the balance block are respectively provided with grooves corresponding to the bracket. The balance block is installed in the bracket through the grooves and slides in the bracket.

[0010] Furthermore, a transverse screw is provided at the center of the bracket, and a drive motor and transmission box are provided near the sliding sleeve to drive the screw. The transmission box drives the screw to rotate. A screw hole corresponding to the screw is provided at the center of the balance block. The rotation of the screw causes the balance block to slide laterally within the bracket.

[0011] Furthermore, the bottom of the housing is provided with a ring of teeth, which are recessed structures. The rotating frame is also provided with a motor, and a gear is connected to the motor. The gear meshes with the teeth at the bottom of the housing. The rotation of the motor drives the gear to rotate, thereby driving the rotating frame to rotate inside the housing.

[0012] Furthermore, the sliding sleeve is also provided with a counterweight, which is located on the sliding sleeve opposite to the bracket. The sliding sleeve opposite to the bracket is provided with a mounting bracket, and the counterweight is installed inside the mounting bracket. The motor is installed on the outside of the mounting bracket.

[0013] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0014] This device incorporates a balancing module into the gripping structure of the robotic arm. By adjusting the position of the balancing blocks within the module when gripping objects with a shifted center of gravity, the overall center of gravity of the gripping unit can be adjusted, thereby achieving a balanced gripping unit and reducing wear between the gripping unit and the robotic arm during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the rotating frame. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the following embodiments are only one or more manifestations of the present invention and are not a complete limitation on the invention content recorded in this application. Any improvements made based on the invention content or technical solution recorded in this application that are known to those skilled in the art should fall within the scope of protection claimed in this application.

[0019] Furthermore, the descriptions of directions such as up, down, left, right, front, and back presented in the specific embodiments are merely for the purpose of describing the technical solutions and are not absolute limitations unless otherwise stated.

[0020] like Figures 1-3 The suspended robotic arm shown includes a gripping part 1 and a connecting rod 2 for mounting the gripping part 1. The connecting rod 1 is also provided with a balancing module 3. The balancing module 3 has a balancing block 301 inside. The position of the balancing block 301 inside the balancing module 3 is adjusted according to the center of gravity of the object being gripped.

[0021] The balancing module 3 includes a columnar housing 302, which is located on a connecting rod 2 above the gripping part 1. The connecting rod 2 passes through the center of the housing 302. The interior of the housing 302 is a hollow structure, and the balancing block 301 is located inside the hollow part of the housing 302.

[0022] The housing 302 is provided with a rotating frame 303 for mounting the balance block 301. The rotating frame 303 includes a sliding sleeve 3031 at the center and a bracket 3032 on the sliding sleeve 3031. The sliding sleeve 3031 corresponds to the connecting rod 2 inside the housing 302 and the sliding sleeve 3031 rotates around the connecting rod 2. The bracket 3032 is located on one side of the sliding sleeve 3031, and the balance block 301 is mounted on the bracket 3032.

[0023] Furthermore, the bracket 3032 has a square frame structure, and the top and bottom of the balance block 301 are respectively provided with grooves 3033 corresponding to the bracket 3032. The balance block 301 is installed in the bracket 3032 through the grooves 3033 and slides in the bracket 3032.

[0024] Furthermore, a transverse screw 3034 is provided at the center of the bracket 3032, and a drive motor 3035 and a transmission box 3036 are provided near the sliding sleeve 3031 to drive the screw 3034. The transmission box 3036 drives the screw 3034 to rotate. A screw hole 304 corresponding to the screw 3034 is provided at the center of the balance block 301. The rotation of the screw 3034 causes the balance block 301 to slide laterally within the bracket 3032.

[0025] Furthermore, the bottom of the housing 302 is provided with a ring of teeth 305. The teeth 305 are recessed structures. The rotating frame 303 is also provided with a motor 306. A gear 307 is connected to the motor 306. The gear 307 meshes with the teeth 305 at the bottom of the housing 302. The rotation of the motor 306 drives the gear 307 to rotate, thereby driving the rotating frame 303 to rotate within the housing 302.

[0026] Furthermore, the sliding sleeve 3031 is also provided with a counterweight 308, which is located on the sliding sleeve 3031 opposite to the bracket 3032. The sliding sleeve 3031 opposite to the bracket 3032 is provided with a mounting bracket 309, and the counterweight 308 is installed inside the mounting bracket 309. The motor 306 is installed on the outside of the mounting bracket 309.

[0027] When this device grasps an object, if the center of gravity of the grasping part of the object shifts, the position of the balance block can be adjusted by the motor and drive motor, thereby adjusting the overall center of gravity. The counterweight is designed to be used to balance the object with the balance block when grasping an object without a shift in center of gravity.

Claims

1. A suspended robotic arm with balancing function, characterized in that: It includes a gripping part and a connecting rod for mounting the gripping part. The connecting rod is also equipped with a balancing module, and the balancing module contains a balancing block. The position of the balancing block within the balancing module is adjusted according to the center of gravity of the object being gripped.

2. A suspended robotic arm with balancing function according to claim 1, characterized in that: The balancing module includes a columnar shell, which is mounted on a connecting rod above the gripping part. The connecting rod passes through the center of the shell, and the interior of the shell has a hollow structure. The balancing block is located inside the hollow part of the shell.

3. A suspended robotic arm with balancing function according to claim 2, characterized in that: The housing is equipped with a rotating frame for mounting the balance weight. The rotating frame includes a sliding sleeve at the center and a bracket on the sliding sleeve. The sliding sleeve corresponds to a connecting rod inside the housing and rotates around the connecting rod. The bracket is located on one side of the sliding sleeve, and the balance weight is mounted on the bracket.

4. A suspended robotic arm with balancing function according to claim 3, characterized in that: The bracket is a square frame structure. The top and bottom of the balance block are respectively provided with grooves corresponding to the bracket. The balance block is installed in the bracket through the grooves and slides in the bracket.

5. A suspended robotic arm with balancing function according to claim 4, characterized in that: A horizontal screw is located at the center of the bracket, and a drive motor and transmission box are located near the sliding sleeve to drive the screw. The transmission box drives the screw to rotate. A screw hole corresponding to the screw is located at the center of the balance block. The rotation of the screw causes the balance block to slide laterally within the bracket.

6. A suspended robotic arm with balancing function according to claim 5, characterized in that: The bottom of the housing is provided with a ring of teeth, which are recessed. The rotating frame is also provided with a motor, and a gear is connected to the motor. The gear meshes with the teeth at the bottom of the housing. The rotation of the motor drives the gear to rotate, thereby driving the rotating frame to rotate inside the housing.

7. A suspended robotic arm with balancing function according to claim 6, characterized in that: The sliding sleeve is also provided with a counterweight, which is located on the sliding sleeve opposite to the bracket. The sliding sleeve opposite to the bracket is provided with a mounting bracket, and the counterweight is installed inside the mounting bracket. The motor is installed on the outside of the mounting bracket.