Air pressure floating type floating spindle for robot
By designing a pneumatic floating spindle, the problems of low efficiency and poor accuracy of existing deburring methods have been solved, enabling high-precision and high-efficiency deburring operations by robots, adapting to multi-station parallel operations, and improving processing quality and safety.
Patent Information
- Application Number
- CN202520031699.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing deburring methods suffer from low efficiency, poor precision, high noise, high cost, or safety hazards, making it difficult to meet the high precision and high efficiency requirements of deburring in machining.
A pneumatic floating spindle for robots was designed, comprising components such as a housing, rear cover, end cover, pneumatic motor, connecting rod, and bearings. Power is provided by the pneumatic motor, and the spindle achieves radial floating by means of a push rod and sealing ring, ensuring high precision and flexible deburring operation.
It achieves high-precision, stable, and flexible deburring operations by robots, improving processing accuracy and efficiency, adapting to the deburring needs of workpieces with different shapes and materials, and ensuring safety and stability.
Smart Images

Figure CN223777169U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a pneumatic floating deburring spindle, belonging to the technical field of deburring spindles, specifically relating to a pneumatic floating spindle for robots. Background Technology
[0002] With the development of modern industry, machining plays a crucial role in manufacturing. However, machined parts commonly suffer from burrs. These burrs not only affect the appearance of the parts but also negatively impact process positioning, product assembly, and performance, and may even lead to serious accidents such as damage to machinery. Therefore, deburring is a particularly important process in parts manufacturing.
[0003] Currently, there are various deburring methods, including manual deburring, vibration deburring, sandblasting, impact deburring, blasting, machining, and electrolysis. However, these methods all have certain limitations. While manual deburring is flexible, it is inefficient and the quality is difficult to guarantee. Vibration and sandblasting can process a large number of parts, but they can easily damage the surface of the parts, reducing their precision and performance. Impact deburring is efficient, but it is noisy and its effective area is limited, making it difficult to meet the deburring needs of complex parts. Explosion deburring requires the construction of a separate safe workshop, which is costly and poses safety hazards, making it unsuitable for large-scale application. Utility Model Content
[0004] Purpose of the utility model: To provide a pneumatic floating spindle for robots, solving the problems mentioned above.
[0005] Technical solution: A pneumatic floating spindle for robots, the floating spindle comprising: a housing, a rear cover, an end cover, a connector, a fixing sleeve, a pneumatic motor, a connecting rod, and a bearing;
[0006] In a further embodiment, the housing has an internal cavity shape, the rear cover is fixedly installed at the rear end of the housing, the end cover is fixedly installed at the front end of the housing, the pneumatic motor is located in the cavity inside the housing and its end is sleeved with the end cover through the fixing sleeve and extends to the outside, one end of the connecting rod is connected to the pneumatic motor and the other end is sleeved in the bearing, the bearing is installed in the rear cover, and the connector is installed outside the housing and communicates with the pneumatic motor.
[0007] In a further embodiment, the end cap is provided with a push rod, which provides a floating force to the pneumatic motor as it floats radially with the cutter head.
[0008] In a further embodiment, the connector is provided with two, which are respectively used as channels for air inlet and outlet of the pneumatic motor.
[0009] In a further embodiment, a screw is provided between the other end of the connecting rod and the bearing to fix the connecting rod and the inner ring of the bearing.
[0010] In a further embodiment, a dust cover is provided on the outside of the end cap and the fixing sleeve;
[0011] A buffer pad is provided between the end cap and the fixing sleeve.
[0012] In a further embodiment, a first sealing ring is provided on the mating surface between the top rod and the end cap;
[0013] A second sealing ring is provided on the mating surface between the housing and the end cap.
[0014] In a further embodiment, the housing is provided with a filter screen that communicates with the interior.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. This utility model's floating spindle enables high-precision motion control of the robot, ensuring the accuracy and stability of deburring operations. It allows the robot to precisely control the distance and angle between the deburr and the workpiece, effectively solving the problem of poor deburring results caused by unstable or inaccurate robot motion. Using a floating spindle for deburring not only ensures deburring quality but also improves the processing accuracy and aesthetics of the product.
[0017] 2. The floating spindle of this invention has a large working range and flexibility, and can adapt to the deburring needs of workpieces of different shapes, sizes and materials. By adjusting the floating range and speed of the spindle, the deburring requirements of different workpieces can be met, and the safety and stability of the deburring process can be guaranteed.
[0018] 3. This utility model's floating spindle not only possesses the advantages of high precision and strong adaptability, but also enables high-efficiency deburring. Using a floating spindle for deburring allows for an automated and continuous deburring process, significantly improving deburring efficiency and production capacity. Furthermore, utilizing the floating spindle's preset functions and automatic control system, multi-station parallel operation can be achieved, further increasing deburring processing efficiency. Attached Figure Description
[0019] Figure 1 This is the front view of this utility model.
[0020] Figure 2 This is the left view of this utility model.
[0021] Figure 3 This is a cross-sectional view of the present invention.
[0022] Reference numerals: 1. Rear cover; 2. Connector; 3. Top rod; 4. First sealing ring; 5. Buffer pad; 6. Dust cover; 7. Fixing sleeve; 8. Second sealing ring; 9. End cap; 10. Pneumatic motor; 11. Housing; 12. Connecting rod; 13. Bearing; 14. Screw; 15. Filter screen. Detailed Implementation
[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0026] A pneumatic floating spindle for robots includes: a rear cover 1, a connector 2, a push rod 3, a first sealing ring 4, a buffer pad 5, a dust cover 6, a fixing sleeve 7, a second sealing ring 8, an end cover 9, a pneumatic motor 10, a housing 11, a connecting rod 12, a bearing 13, and a screw 14.
[0027] In one embodiment, such as Figures 1 to 3As shown, the housing 11 has an internal cavity shape. The rear cover 1 is fixedly installed at the rear end of the housing 11, and the end cover 9 is fixedly installed at the front end of the housing 11. The pneumatic motor 10 is located in the cavity inside the housing 11, and its end is sleeved with the end cover 9 through the fixing sleeve 7 and extends to the outside. One end of the connecting rod 12 is connected to the pneumatic motor 10, and the other end is sleeved in the bearing 13. The bearing 13 is installed in the rear cover 1, and the connector 2 is installed outside the housing 11 and communicates with the pneumatic motor 10.
[0028] In one embodiment, such as Figures 1 to 3 As shown, the end cap 9 is provided with a push rod 3. When the pneumatic motor 10 floats radially with the cutter head, the push rod 3 provides a floating force for the radial floating of the pneumatic motor 10.
[0029] In one embodiment, such as Figures 1 to 3 As shown, the connector 2 has two parts, which are used as channels for the air to enter and exit the pneumatic motor 10.
[0030] In one embodiment, such as Figures 1 to 3 As shown, a screw 14 is provided between the other end of the connecting rod 12 and the bearing 13 to fix the connecting rod 12 and the inner ring of the bearing 13.
[0031] In one embodiment, such as Figures 1 to 3 As shown, a dust cover 6 is provided on the outside of the end cap 9 and the fixing sleeve 7; a buffer pad 5 is provided between the end cap 9 and the fixing sleeve 7.
[0032] In one embodiment, such as Figures 1 to 3 As shown, a first sealing ring 4 is provided on the mating surface between the top rod 3 and the end cap 9; a second sealing ring 8 is provided on the mating surface between the housing 11 and the end cap 9.
[0033] In one embodiment, such as Figures 1 to 3 As shown, the housing 11 is provided with a filter screen 15 that connects to the interior.
[0034] In one embodiment, such as Figures 1 to 3 As shown, the rear cover 1 can be installed and docked with the robot interface part, and also serves as a fixed fulcrum for radial floating.
[0035] The connector 2 is a channel for air to enter and exit.
[0036] The push rod 3 is used to provide a floating force to the pneumatic motor 10 as it floats radially with the cutter head.
[0037] The first sealing ring 4 is used to seal the mating surfaces between the top rod 3 and the end cap 9 to prevent gas leakage.
[0038] The buffer pad 5 is designed to prevent damage to moving parts when the angle of the float exceeds the maximum float range.
[0039] The dust cover 6 is used to prevent foreign objects from entering the interior of the floating spindle.
[0040] The fixed sleeve 7 is used to transmit radial floating force. When the air circuit is connected, the push rod 3 is pushed out by air pressure until it presses against the fixed sleeve 7. When the main shaft floats radially, the fixed sleeve 7 floats radially with the pneumatic motor 10 and compresses the push rod 3.
[0041] The second sealing ring 8 is used to seal the mating surfaces between the housing 11 and the end cap 9 to prevent gas leakage.
[0042] The end cap 9 is used for the front end of the pneumatic floating spindle and forms a surface seal at the mating surface with the push rod 3.
[0043] The pneumatic motor 10 is the main power unit for the floating spindle, providing deburring rotational power.
[0044] The housing 11 serves as the main body connection part of the entire floating spindle, and also provides an interface mounting part in different directions from the robot.
[0045] The connecting rod 12 is used to install and fasten the bearing 13.
[0046] The bearing 13 is used for the radial oscillating motion of the pneumatic motor 10.
[0047] The screw 14 is used to fasten the inner ring of the spherical bearing 13.
[0048] Working principle: When this utility model is working, the rear cover 1 can be installed and docked with the robot interface part, and it is also a fixed fulcrum for radial floating. The connector 2 is connected to the air source, and the air is supplied through the connector 2 to provide power to the pneumatic motor 10, thereby driving the cutter head to rotate. When the pneumatic motor 10 floats radially with the cutter head, the push rod 3 provides floating force to the radial floating of the pneumatic motor 10. When the air circuit is connected, the push rod 3 is pushed out by air pressure until it hits the fixed sleeve 7. When the main shaft floats radially, the fixed sleeve 7 floats radially with the pneumatic motor 10 and compresses the push rod 3.
[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A pneumatic floating spindle for robots, characterized in that, The floating spindle includes: a housing, a rear cover, an end cover, a connector, a fixing sleeve, a pneumatic motor, a connecting rod, and a bearing; The housing has an internal cavity. The rear cover is fixedly installed at the rear end of the housing, and the end cover is fixedly installed at the front end of the housing. The pneumatic motor is located in the cavity inside the housing, and its end is connected to the end cover through the fixing sleeve and extends to the outside. One end of the connecting rod is connected to the pneumatic motor, and the other end is sleeved in the bearing. The bearing is installed in the rear cover, and the connector is installed outside the housing and communicates with the pneumatic motor.
2. The pneumatic floating spindle for robots according to claim 1, characterized in that, The end cap is provided with a push rod, which provides a floating force to the pneumatic motor as it floats radially with the cutter head.
3. The pneumatic floating spindle for robots according to claim 1, characterized in that, The connector has two parts, which are used as channels for air to enter and exit the pneumatic motor.
4. The pneumatic floating spindle for robots according to claim 1, characterized in that, The other end of the connecting rod is provided with a screw between it and the bearing to fix the connecting rod and the inner ring of the bearing.
5. The pneumatic floating spindle for robots according to claim 1, characterized in that, The end cap and the fixing sleeve are provided with dust covers on their outer sides; A buffer pad is provided between the end cap and the fixing sleeve.
6. The pneumatic floating spindle for robots according to claim 2, characterized in that, A first sealing ring is provided on the mating surface between the top rod and the end cap; A second sealing ring is provided on the mating surface between the housing and the end cap.
7. The pneumatic floating spindle for robots according to claim 1, characterized in that, The housing is equipped with a filter screen that connects to the interior.