Output shaft dynamic balancing device

By combining multi-dimensional adjustment components and control panel, the problem of low output shaft adjustment accuracy in existing technologies has been solved, achieving efficient and stable dynamic balance adjustment to meet the needs of high-precision operations.

CN224928021UActive Publication Date: 2026-11-03SUZHOU YUJI PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202522450010.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-11-03
Estimated Expiration
2035-11-19

AI Technical Summary

Technical Problem

Existing industrial robot output axis adjustment structures are mostly single-dimensional or two-dimensional adjustment designs, lacking a coordinated fine-tuning mechanism in the horizontal, axial, and circumferential directions, resulting in low adjustment accuracy and poor efficiency, and failing to meet the needs of high-precision operation scenarios.

Method used

The device employs a multi-dimensional adjustment design with components such as the adjusting boom, adjusting forearm, axial adjusting seat, auxiliary rotating seat, and adjusting plate. Combined with signal interaction from the control panel, it achieves multi-dimensional precise balance adjustment of the output shaft. Furthermore, the device's stability and vibration reduction effect are enhanced by adding rubber pads, magnetic strips, and anti-slip textures to the components.

Benefits of technology

It significantly improves the accuracy and efficiency of dynamic balance adjustment of the output shaft, adapts to the balance requirements of different robotic arm operation scenarios, ensures stable installation of the device and reduces vibration interference, and improves the flexibility and reliability of use.

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Abstract

The utility model relates to industrial mechanical man output shaft field discloses a kind of output shaft dynamic balancing device, including base, positioner and additional component, the positioner is installed at the top of base, for the positioner balance of manipulator, the positioner includes positioner big arm, positioner small arm, axial positioner seat, auxiliary direction rotating seat and positioner disc.In the utility model, by the mutual cooperation between the connecting relationship of positioner big arm, positioner small arm, axial positioner seat and other components in equipment, realize output shaft multidimensional regulation, axial positioner seat accurate compensation axial offset, auxiliary direction rotating seat realizes all-around circumferential correction, positioner disc efficient transmission adjustment force, in combination with the signal interaction of output end and control panel, can accurately respond instruction and feedback state, greatly improve output shaft dynamic balancing regulation accuracy and efficiency, adapt to the balance demand of different manipulator operating scene.
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Description

Technical Field

[0001] This utility model relates to the field of output shafts of industrial robots, and in particular to a dynamic balancing device for output shafts. Background Technology

[0002] In the field of industrial robots, the output shaft, as the core component for power transmission and motion execution, directly determines the robot's operational accuracy, stability, and service life through its dynamic balance performance. As industrial production demands increasingly higher positioning accuracy and load capacity from robots, the output shaft is prone to axial offset, circumferential angular deviation, and horizontal displacement under high-speed operation or variable load conditions due to assembly errors, component wear, and other factors. This leads to increased vibration and operating noise, which not only reduces product processing accuracy but also shortens the service life of key components such as bearings and transmission gears, increasing equipment maintenance costs.

[0003] The above-mentioned device has the following defects: the existing industrial robot output shaft adjustment structure is mostly a single-dimensional or two-dimensional adjustment design, lacking a coordinated fine adjustment mechanism for horizontal, axial and circumferential directions. Moreover, the adjustment process requires repeated manual calibration, which makes it difficult to accurately compensate for multi-dimensional offsets, resulting in low adjustment accuracy and poor efficiency, and it cannot meet the requirements of high-precision operation scenarios. Therefore, an output shaft dynamic balancing device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an output shaft dynamic balancing device, which aims to improve the problems of low dynamic balancing adjustment accuracy and insufficient multi-dimensional coordinated adjustment capability of the output shaft in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an output shaft dynamic balancing device, comprising a base, an adjustment assembly, and an auxiliary assembly. The adjustment assembly is installed at the top of the base and is used to adjust and balance the robotic arm. The adjustment assembly includes an adjustment arm, an adjustment forearm, an axial adjustment seat, an auxiliary rotary seat, and an adjustment disk. The adjustment arm is rotatably connected to the top of the base. The adjustment forearm is fixedly installed at the front end of the adjustment arm. The axial adjustment seat is fixedly installed at the top of the adjustment forearm. The auxiliary rotary seat is rotatably connected to the front end of the axial adjustment seat. The adjustment disk is fixedly installed at the front end of the auxiliary rotary seat. The auxiliary assembly is installed at the bottom of the base and is used for installing and disassembling the base.

[0006] As a further description of the above technical solution: the mounting component includes a base plate, an auxiliary plate, auxiliary bolts and a rubber pad. The base plate is fixedly installed at the bottom end of the base. The auxiliary plate is detachably connected to the lower surface of the base plate by the auxiliary bolts. The rubber pad is fixedly installed inside the auxiliary plate.

[0007] As a further description of the above technical solution: multiple sets of magnetic strips are fixedly installed on the lower surface of the rubber pad, and multiple sets of evenly distributed anti-slip textures are formed on the lower surface of the auxiliary plate.

[0008] As a further description of the above technical solution: the top corner of the outer wall of the auxiliary plate is set as a rounded corner structure.

[0009] As a further description of the above technical solution: a control panel is provided on the rear surface of the base.

[0010] As a further description of the above technical solution: there is a circuit connection between the control panel and the components in the adjustment assembly.

[0011] As a further description of the above technical solution: the outer surface of the adjusting forearm is configured as a U-shaped structure.

[0012] As a further description of the above technical solution: an output terminal is fixedly installed on the front surface of the adjustment disk.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the output shaft can be adjusted in multiple dimensions by means of the cooperation between the adjusting arm, adjusting arm, axial adjusting seat and other components in the equipment through the connection relationship. The axial adjusting seat accurately compensates for axial offset, the auxiliary rotating seat realizes all-round circumferential correction, the adjusting plate efficiently transmits the adjusting force, and combined with the signal interaction between the output terminal and the control panel, it can accurately respond to the command and feedback the status, which greatly improves the accuracy and efficiency of dynamic balance adjustment of the output shaft and adapts to the balance requirements of different robotic arm operation scenarios.

[0014] 2. In this utility model, the base plate, auxiliary plate, rubber pad and other components in the equipment cooperate with each other through the connection relationship. The auxiliary bolts enable quick disassembly and assembly for easy maintenance. The rubber pad absorbs vibration and prevents slipping. The magnetic strip enhances the adsorption of the metal mounting surface. The anti-slip texture further improves the stability. Multiple components form multiple anti-slip and vibration reduction protection, which not only ensures that the device is installed stably without displacement, but also reduces the interference of vibration on the adjustment accuracy. At the same time, it also takes into account the temporary installation and positioning needs, and improves the flexibility and reliability of the device. Attached Figure Description

[0015] Figure 1 This is a front view of the main body of the dynamic balancing device for the output shaft proposed in this utility model; Figure 2 This is a side view of the main body of the dynamic balancing device for the output shaft proposed in this utility model; Figure 3 This is an exploded view of a local area of ​​the adjusting arm of the output shaft dynamic balancing device proposed in this utility model; Figure 4This is an exploded view of the components in the base plate area of ​​the output shaft dynamic balancing device proposed in this utility model; Figure 5 This is a schematic diagram of a partial area of ​​the magnetic strip in an output shaft dynamic balancing device proposed in this utility model.

[0016] Legend: 1. Base; 2. Adjustment assembly; 21. Adjustment boom; 22. Adjustment forearm; 23. Axial adjustment seat; 24. Auxiliary rotation seat; 25. Adjustment plate; 3. Addition assembly; 31. Base plate; 32. Auxiliary plate; 33. Auxiliary bolts; 34. Rubber pad; 35. Magnetic strip; 36. Anti-slip texture; 4. Output terminal; 5. Control panel. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an output shaft dynamic balancing device, comprising a base 1, an adjustment component 2, and an mounting component 3. The base 1 serves as the basic load-bearing component of the entire dynamic balancing device, providing a stable installation reference surface and bearing the installation weight of the adjustment component 2, the mounting component 3, and the control panel 5, ensuring the stability of the overall structure of the device and preventing the dynamic balance adjustment accuracy from being affected by foundation shaking during operation. The adjustment component 2 is installed at the top of the base 1 for adjusting and balancing the robotic arm. The mounting component 3 is installed at the bottom of the base 1 for installing and removing the base 1. The control panel 5 is provided on the rear surface of the base 1. The control panel 5 is electrically connected to the components in the adjustment component 2. The control panel 5 is used to receive adjustment commands input by the operator and receive dynamic balance detection signals of the output shaft, thereby controlling the actions of each component of the adjustment component 2 to achieve automatic adjustment or manual control of dynamic balance. It can also display information such as the device's operating status and balance adjustment parameters.

[0019] Reference Figure 1 - Figure 3The adjustment assembly 2 includes an adjustment arm 21, an adjustment arm 22, an axial adjustment seat 23, an auxiliary rotating seat 24, and an adjustment plate 25. The adjustment arm 21 is rotatably connected to the top of the base 1, providing a mounting carrier for the adjustment arm 22 and simultaneously enabling coarse adjustment displacement of the output shaft in the first horizontal longitudinal dimension, laying the foundation for balanced adjustment. The adjustment arm 22 is fixedly installed at the front end of the adjustment arm 21. The outer surface of the adjustment arm 22 is designed with a U-shaped structure, which ensures both the lightweight and rigidity of its own structure and provides a stable installation space for the axial adjustment seat 23, while also allowing for adjustment as needed. The swing of the boom 21 achieves synchronous displacement, coordinating with the adjusting boom 21 to complete the horizontal longitudinal displacement adjustment of the output shaft in the first dimension, realizing the connection between coarse and fine adjustment. The axial adjusting seat 23 is fixedly installed on the top of the adjusting arm 22. The axial adjusting seat 23 is used to support the installation of the auxiliary rotary seat 24 and can make fine displacement adjustments along its own axis to correct the position of the output shaft in the axis, accurately compensate for the axial offset, and complete the dynamic balance axial fine adjustment. The auxiliary rotary seat 24 is rotatably connected to the front end of the axial adjusting seat 23. The auxiliary rotary seat 24 can rotate 360° around its own central axis or a preset rotation axis. The rotation adjustment provides a rotational mounting reference for the adjustment plate 25, enabling axial angle correction of the output shaft and further optimizing dynamic balance accuracy. The adjustment plate 25 is fixedly installed at the front end of the auxiliary rotary seat 24. The adjustment plate 25 is used to directly connect to the output shaft of the robotic arm or related transmission components. By bearing the multi-dimensional adjustment forces of the adjustment arm 21, adjustment arm 22, axial adjustment seat 23, and auxiliary rotary seat 24, the adjustment action is transmitted to the output shaft. At the same time, it provides a stable mounting plane for the output terminal 4. The output terminal 4 is fixedly installed on the front surface of the adjustment plate 25. The output terminal 4 serves as a signal and power transmission interface component, used to realize the signal connection between the adjustment component 2 and the output shaft of the robotic arm, ensuring that the adjustment action of the adjustment component 2 can accurately respond to control commands, and at the same time, feedback the dynamic balance status data of the output shaft.

[0020] Reference Figure 1 , Figure 4 and Figure 5The additional component 3 includes a base plate 31, an auxiliary plate 32, auxiliary bolts 33, and a rubber pad 34. The base plate 31 is fixedly installed at the bottom of the base 1, serving as a connecting bridge between the base 1 and the auxiliary plate 32. It bears the weight of the base 1 and transfers it to the auxiliary plate 32, ensuring even distribution of installation force. The auxiliary plate 32 is detachably connected to the lower surface of the base plate 31 via the auxiliary bolts 33. The outer corner of the auxiliary plate 32 is rounded to prevent damage from sharp corners during installation and operation. Simultaneously, the auxiliary plate 32 provides an embedded installation space for the rubber pad 34 and increases the contact area with the mounting surface through its planar structure, improving installation stability. The auxiliary bolts 33 can be quickly assembled or disassembled according to installation requirements, facilitating maintenance, replacement, and relocation of the device. The rubber pad 34 is fixedly installed inside the auxiliary plate 32. The rubber pad 34 utilizes rubber... The elastic properties of the material absorb the vibration generated during the operation of the device, reducing the impact of vibration on the mounting surface and the device's own balance adjustment accuracy. The high coefficient of friction of the rubber material can enhance the friction between the auxiliary plate 32 and the mounting surface. Combined with the anti-slip texture 36, the anti-slip effect is further improved. Multiple sets of magnetic strips 35 are fixedly installed on the lower surface of the rubber pad 34. The magnetic strips 35 use magnetic adsorption force to enhance the adhesion and tightness between the auxiliary plate 32 and the mounting surface, preventing the device from shifting in the horizontal direction. It is suitable for temporary installation or scenarios that require rapid positioning, improving the ease of installation and stability. Multiple sets of evenly distributed anti-slip textures 36 are opened on the lower surface of the auxiliary plate 32. The anti-slip textures 36 increase the contact friction between the auxiliary plate 32 and the mounting surface, further preventing the device from sliding due to vibration, force and other factors during operation. Together with the rubber pad 34 and magnetic strips 35, they form multiple anti-slip protections.

[0021] Working principle: Before the device is put into use, the base 1 and the mounting surface are fixedly installed by adding component 3 to ensure that the device does not shift during the subsequent balance adjustment process. The base plate 31 in the added component 3 serves as a connecting bridge between the base 1 and the auxiliary plate 32, evenly transferring the weight of the base 1 to the auxiliary plate 32. This prevents excessive local stress from causing deformation of the mounting surface and provides a stable foundation for the subsequent installation of components. The operator can detachably connect the auxiliary plate 32 to the lower surface of the base plate 31 using auxiliary bolts 33. The rounded corners of the auxiliary plate 32's outer wall prevent damage from bumps during installation. At the same time, its planar structure increases the contact area with the mounting surface, initially improving installation stability. The rubber pad 34 fixed inside the auxiliary plate 32 uses the elasticity of rubber to absorb vibrations during the operation of the device, reducing the interference of vibrations on the balance adjustment accuracy. The high coefficient of friction of the rubber also enhances the friction with the mounting surface. Multiple sets of magnetic strips 35 on the lower surface of the rubber pad 34 further adhere to the metal mounting surface through magnetic adsorption, preventing horizontal displacement of the device. This is suitable for temporary installation or rapid positioning scenarios. Multiple sets of anti-slip textures 36 on the lower surface of the auxiliary plate 32 increase contact friction, forming a triple anti-slip guarantee with the rubber pad 34 and magnetic strips 35, ensuring the overall installation of the device is stable.

[0022] After the device is installed and fixed, the operator starts the dynamic balance adjustment process through the control panel 5 on the rear surface of the base 1. The control panel 5 receives the adjustment parameters input by the operator and simultaneously receives the real-time dynamic balance detection signal of the robotic arm output shaft through the output terminal 4. This detection signal is transmitted from the robotic arm output shaft to the adjustment component 2 via the output terminal 4 as a signal transmission interface, and then fed back to the control panel 5. The control panel 5 analyzes the current offset state of the output shaft based on the received detection signal and input parameters, and issues targeted adjustment commands to each functional component in the adjustment component 2. The control panel 5 also displays the device's operating status and balance adjustment parameters in real time for easy monitoring by the operator.

[0023] After receiving instructions from the control panel 5, the adjustment component 2 achieves multi-dimensional precise balance adjustment of the output shaft through the coordinated action of the adjustment boom 21, adjustment arm 22, axial adjustment seat 23, auxiliary rotary seat 24 and adjustment plate 25. The adjusting arm 21 rotates and swings around the rotating connection point at the top of the base 1, realizing the coarse adjustment displacement of the output shaft in the first dimension according to the instructions of the control panel 5, laying the foundation angle for subsequent fine adjustment. At the same time, it provides a stable mounting carrier for the adjusting arm 22, causing the adjusting arm 22 to swing synchronously. The adjusting arm 22, fixed to the front end of the adjusting arm 21, has a U-shaped structure that ensures its own lightweight and rigidity while providing installation space for the axial adjusting seat 23. As the adjusting arm 22 swings with the adjusting arm 21, it completes the displacement adjustment of the output shaft in the second dimension according to the instructions, realizing the connection between the horizontal coarse adjustment and subsequent fine adjustment, and initially reducing the horizontal offset of the output shaft. The axial adjusting seat 23, fixed to the top of the adjusting arm 22, supports the auxiliary rotating seat 24 and makes fine displacement adjustments along its own axis according to the instructions, accurately compensating for the output shaft. Axial offset is used to complete the fine adjustment of the axial dimension, further reducing the impact of axial offset on balance. The auxiliary rotary seat 24 rotates 360° around its own central axis or a preset rotation axis, correcting the circumferential angle offset of the output shaft according to the command, providing a rotational installation reference for the adjustment plate 25, ensuring that the subsequent adjustment plate 25 drives the output shaft to rotate to the target angle, optimizing the circumferential dynamic balance accuracy. The adjustment plate 25, fixed at the front end of the auxiliary rotary seat 24, is directly connected to the output shaft of the robotic arm or related transmission components, bearing the multi-dimensional adjustment force of the adjustment arm 21, adjustment arm 22, axial adjustment seat 23 and auxiliary rotary seat 24, accurately transmitting the adjustment action to the output shaft, realizing the overall balance correction of the output shaft. At the same time, the adjustment plate 25 provides a stable mounting plane for the output terminal 4, ensuring that the output terminal 4 continuously transmits detection signals and control signals.

[0024] After the adjustment component 2 completes one round of adjustment, the output terminal 4 collects the dynamic balance status data of the output shaft in real time and feeds it back to the control panel 5. The control panel 5 compares the current data with the target balance accuracy. If the requirements are not met, the adjustment command is issued again, and the above adjustment process is repeated until the dynamic balance of the output shaft meets the preset accuracy. If the requirements are met, the control panel 5 displays that the adjustment is complete and sends a balance ready signal to the robotic arm through the output terminal 4. The device enters a continuous monitoring state. The rubber pad 34 continuously absorbs vibration, and the magnetic strip 35 and anti-slip texture 36 maintain a stable installation. The adjustment component 2 is ready to respond to the fine-tuning command of the control panel 5 at any time to ensure that the output shaft is in a dynamic balance state for a long time.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A dynamic balancing device for an output shaft, characterized in that, include: Base (1); The positioning component (2) is installed on the top of the base (1) and is used to adjust and balance the robotic arm. The adjustment assembly (2) includes an adjustment arm (21), an adjustment arm (22), an axial adjustment seat (23), an auxiliary rotary seat (24), and an adjustment plate (25). The adjustment arm (21) is rotatably connected to the top of the base (1). The adjustment arm (22) is fixedly installed at the front end of the adjustment arm (21). The axial adjustment seat (23) is fixedly installed at the top of the adjustment arm (22). The auxiliary rotary seat (24) is rotatably connected to the front end of the axial adjustment seat (23). The adjustment plate (25) is fixedly installed at the front end of the auxiliary rotary seat (24). Add component (3), which is installed at the bottom of the base (1) for installing and removing the base (1).

2. The output shaft dynamic balancing device according to claim 1, characterized in that: The mounting component (3) includes a base plate (31), an auxiliary plate (32), auxiliary bolts (33) and a rubber pad (34). The base plate (31) is fixedly installed at the bottom end of the base (1). The auxiliary plate (32) is detachably connected to the lower surface of the base plate (31) by the auxiliary bolts (33). The rubber pad (34) is fixedly installed inside the auxiliary plate (32).

3. The output shaft dynamic balancing device according to claim 2, characterized in that: The lower surface of the rubber pad (34) is fixedly installed with multiple sets of magnetic strips (35), and the lower surface of the auxiliary plate (32) is provided with multiple sets of evenly distributed anti-slip textures (36).

4. The output shaft dynamic balancing device according to claim 2, characterized in that: The outer corner of the auxiliary plate (32) is set with a rounded corner structure.

5. The output shaft dynamic balancing device according to claim 1, characterized in that: The rear surface of the base (1) is provided with a control panel (5).

6. The output shaft dynamic balancing device according to claim 5, characterized in that: The control panel (5) is connected to the components in the adjustment assembly (2) via electrical circuits.

7. The output shaft dynamic balancing device according to claim 1, characterized in that: The outer surface of the adjustment arm (22) is configured as a U-shaped structure.

8. The output shaft dynamic balancing device according to claim 1, characterized in that: The front surface of the adjustment plate (25) is fixedly equipped with an output terminal (4).