Industrial robot servo motor structure

Abstract

The utility model relates to servo motor technical field discloses an industrial robot servo motor structure, including the organism, the output end fixedly connected with output shaft of organism, the front side fixedly connected with the installation ring of organism, the inside installation of installation ring has the locating sleeve, the outside of output shaft is clamped in the locating sleeve, the inside front side of locating sleeve is matched in seal ring no.

Description

Technical Field

[0001] This utility model relates to the field of servo motor technology, and in particular to a servo motor structure for an industrial robot. Background Technology

[0002] Servo motors for industrial robots play a crucial role in modern automated production. They are the core components that drive industrial robots to perform precision operations and are widely used in welding, assembly, painting, and material handling.

[0003] As a key component in modern automation technology, industrial robot servo motors provide high-precision motion control. During operation, servo motors face challenges from the external environment due to their high-speed rotation and high-load operation, particularly the intrusion of dust and impurities, and lubricant leakage. Ordinary sealing rings cannot effectively block fine dust particles, leading to contamination of the lubricating oil inside the motor. Furthermore, after prolonged use, the aging and failure of the sealing rings can also cause lubricant leakage or the entry of external dust, severely affecting the stability and lifespan of the motor. Therefore, this paper proposes a new industrial robot servo motor structure to address these problems. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides an industrial robot servo motor structure, which aims to improve the existing technology's inability to effectively block fine dust particles, leading to contamination of the lubricating oil inside the motor; at the same time, after long-term use, the aging and failure of the sealing ring can also lead to lubricating oil leakage or the entry of external dust, seriously affecting the stability and service life of the motor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an industrial robot servo motor structure, comprising a body, an output shaft fixedly connected to the output end of the body, an installation ring fixedly connected to the front side of the body, a positioning sleeve installed inside the installation ring, the positioning sleeve being fitted onto the outside of the output shaft, a sealing ring one being engaged with the front side of the inside of the positioning sleeve, a threaded seal being threadedly connected to the rear side of the inner side of the sealing ring one, a sealing ring two being engaged with the outer rear side of the threaded seal, a sealing ring being engaged with the inner side of the threaded seal, and a secondary barrier assembly being engaged with the rear outer side of the output shaft, the secondary barrier assembly being used to ensure the sealing of the gap between the output shaft and the body.

[0006] As a further description of the above technical solution: The mounting ring has mounting grooves on both the top and bottom of its inner side, and an arc-shaped groove on the rear side of the mounting groove. Mounting blocks are fixedly connected to the left and right sides of the rear side of the positioning sleeve, and the mounting blocks are slidably connected inside the mounting groove and the arc-shaped groove.

[0007] As a further description of the above technical solution: Both sides of the inner wall of the arc-shaped groove are fixedly connected with protrusions. The protrusions are used to block the mounting block and prevent the positioning sleeve from rotating.

[0008] As a further description of the above technical solution: The secondary barrier assembly includes an annular portion, which is engaged with the outer rear side of the output shaft, and a lip portion is fixedly connected to the rear end of the annular portion.

[0009] As a further description of the above technical solution: An annular groove is formed between the inner rear side of the positioning sleeve and the sealing ring, and the annular groove is used to block dust or lubricating oil.

[0010] As a further description of the above technical solution: Both the annular portion and the lip portion are engaged and connected to the inside of the front side of the body.

[0011] As a further description of the above technical solution: The front end of the annular portion is wider than the rear end, and the lip portion is inclined, with the rear end lower than the front end.

[0012] This utility model has the following beneficial effects: In this invention, the sealing ring inside the positioning sleeve fits tightly with the output shaft, effectively preventing dust from entering the motor. The annular groove further blocks dust, while the arc-shaped part intercepts dust again. Because the front diameter of the arc-shaped part is wider than the rear diameter, and combined with the slanted design of the lip, it effectively prevents lubricating oil leakage. The sealing ring, threaded seal, and sealing ring two are all connected by snap-fit, and the threaded seal and sealing ring one are connected by threads, allowing the components in the combined sealing body to be replaced individually.

[0013] In this invention, by aligning the mounting blocks on both sides with the mounting groove, the positioning sleeve is then fitted onto the outside of the output shaft and smoothly enters the inside of the mounting ring. After the mounting block is in contact with the rear side wall of the mounting groove, the positioning sleeve is rotated clockwise to allow the mounting block to slide into the arc-shaped groove. The internal protrusion blocks then block and position the mounting block, thereby stably installing the positioning sleeve inside the mounting ring. Attached Figure Description

[0014] Figure 1 This is a perspective view of a servo motor structure for an industrial robot proposed in this utility model; Figure 2 This is a cross-sectional view of the positioning sleeve of an industrial robot servo motor structure proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a split view of the mounting ring and positioning sleeve of an industrial robot servo motor structure proposed in this utility model; Figure 5 This is a cross-sectional view of the output shaft and annular portion of an industrial robot servo motor structure proposed in this utility model.

[0015] Legend: 1. Body; 2. Output shaft; 3. Mounting ring; 4. Positioning sleeve; 5. Sealing ring one; 6. Sealing ring two; 7. Threaded seal; 8. Sealing ring; 9. Annular groove; 10. Annular part; 11. Lip part; 12. Mounting block; 13. Mounting groove; 14. Arc groove; 15. Protrusion. Detailed Implementation

[0016] 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.

[0017] Reference Figure 2 , Figure 3 , Figure 5 The present invention provides an embodiment of an industrial robot servo motor structure, comprising a body 1, an output shaft 2 fixedly connected to the output end of the body 1, an mounting ring 3 fixedly connected to the front side of the body 1, a positioning sleeve 4 installed inside the mounting ring 3, the positioning sleeve 4 being fitted around the outside of the output shaft 2, a sealing ring 5 being engaged with the front side inside the positioning sleeve 4, a threaded seal 7 being threadedly connected to the rear side inside the sealing ring 5, a sealing ring 6 being engaged with the outer rear side of the threaded seal 7, a sealing ring 8 being engaged with the inner side of the threaded seal 7, and a secondary barrier assembly being engaged with the rear outer side of the output shaft 2. The secondary barrier assembly is used to ensure the sealing of the gap between the output shaft 2 and the body 1. The secondary barrier assembly includes an annular portion 10, which is engaged with the outer rear side of the output shaft 2. A lip portion 11 is fixedly connected to the rear end of the annular portion 10. Both the annular portion 10 and the lip portion 11 are engaged with the inner front side of the body 1. The front end diameter of the annular portion 10 is wider than the rear end, and the lip portion 11 is inclined with the rear end lower than the front end. An annular groove 9 is formed between the inner rear side of the positioning sleeve 4 and the sealing ring 8. The annular groove 9 is used to block dust or lubricating oil.

[0018] When the motor is running, the sealing ring 8 inside the positioning sleeve 4 is in close contact with the output shaft 2, blocking dust. The internal setting of the annular groove 9 further blocks dust, and the annular part 10 installed at the connection between the output shaft 2 and the motor further blocks dust. The annular part 10, with its front end diameter wider than its rear end and its lip part 11 angled, effectively blocks lubricating oil and prevents leakage. The sealing ring 8 is engaged with the threaded seal 7, and the threaded seal 7 is threaded with the sealing ring 5, allowing individual replacement of the components in the combined sealing body. This ensures the sealing between the output shaft 2 and the motor, prevents lubricating oil leakage and dust ingress, and allows for convenient replacement of individual parts of the sealing body, avoiding aging or failure after long-term use.

[0019] Reference Figure 1 , Figure 2 , Figure 4 The inner side of the mounting ring 3 is provided with mounting grooves 13 on both the top and bottom. The rear side of the mounting groove 13 is provided with an arc-shaped groove 14. The rear side of the positioning sleeve 4 is fixedly connected with mounting blocks 12 on both the left and right sides. The mounting blocks 12 are slidably connected inside the mounting groove 13 and the arc-shaped groove 14. The inner walls of the arc-shaped groove 14 are fixedly connected with protrusions 15 on both the left and right sides. The protrusions 15 are used to block the mounting blocks 12 and prevent the positioning sleeve 4 from rotating.

[0020] By fitting the positioning sleeve 4 from the outside of the output shaft 2 to the inside of the mounting ring 3, and with the positioning sleeve 4 fitting on the outside of the output shaft 2, the mounting blocks 12 on both sides are aligned with the mounting groove 13, so that the positioning sleeve 4 is inserted into the mounting ring 3 and the mounting blocks 12 are inserted into the mounting groove 13. When the mounting blocks 12 are in contact with the rear side wall of the mounting groove 13, the positioning sleeve 4 is rotated clockwise, so that the mounting blocks 12 slide in the arc groove 14, and the internal protrusions 15 block and position the mounting blocks 12, thus stably installing the positioning sleeve 4 in the mounting ring 3. This achieves stable installation of the positioning sleeve 4 in the mounting ring 3, preventing loosening or displacement during use and improving the stability and reliability of the overall structure.

[0021] Working principle: When the device is needed, the mounting blocks 12 on both sides are aligned with the mounting groove 13, and then the positioning sleeve 4 is fitted onto the outside of the output shaft 2 and smoothly enters the inside of the mounting ring 3. After the mounting block 12 is in contact with the rear side wall of the mounting groove 13, the positioning sleeve 4 is rotated clockwise, so that the mounting block 12 slides into the arc groove 14, and the internal protrusion 15 blocks and positions the mounting block 12, thereby stably installing the positioning sleeve 4 in the mounting ring 3. When the motor is running, the sealing ring 8 in the positioning sleeve 4 is in close contact with the output shaft 2, effectively preventing dust from entering the motor. At the same time, the setting of the annular groove 9 further blocks dust, and the installation of the annular part 10 intercepts dust again. Because the front diameter of the annular part 10 is wider than the rear diameter, and combined with the slanted design of the lip part 11, it effectively prevents lubricating oil leakage. The sealing ring 8, the threaded seal 7 and the second sealing ring 6 are all connected by snap-fit, and the threaded seal 7 and the first sealing ring 5 are connected by threads, so that the components in the combined sealing body can be replaced individually.

[0022] 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 servo motor structure for an industrial robot, comprising a body (1), characterized in that: The output end of the body (1) is fixedly connected to an output shaft (2). The front side of the body (1) is fixedly connected to an installation ring (3). A positioning sleeve (4) is installed inside the installation ring (3). The positioning sleeve (4) is fitted onto the outside of the output shaft (2). A sealing ring (5) is engaged with the front side inside the positioning sleeve (4). A threaded seal (7) is threadedly connected to the rear side inside the sealing ring (5). A sealing ring (6) is engaged with the outer rear side of the threaded seal (7). A sealing ring (8) is engaged with the inner side of the threaded seal (7). A secondary barrier assembly is engaged with the rear side outside the output shaft (2). The secondary barrier assembly is used to ensure the seal between the output shaft (2) and the body (1).

2. The industrial robot servo motor structure according to claim 1, characterized in that: The mounting ring (3) has mounting grooves (13) on both the upper and lower sides of its inner side, and an arc groove (14) is provided on the rear side of the mounting groove (13). The positioning sleeve (4) has mounting blocks (12) fixedly connected to the left and right sides of its rear side. The mounting blocks (12) are slidably connected inside the mounting groove (13) and the arc groove (14).

3. The industrial robot servo motor structure according to claim 2, characterized in that: The inner wall of the arc groove (14) is fixedly connected with protrusions (15) on both the left and right sides. The protrusions (15) are used to block the mounting block (12) and prevent the positioning sleeve (4) from rotating.

4. The industrial robot servo motor structure according to claim 1, characterized in that: The secondary barrier assembly includes an annular portion (10), which is engaged with the rear side of the output shaft (2), and a lip portion (11) is fixedly connected to the rear end of the annular portion (10).

5. The servo motor structure for an industrial robot according to claim 1, characterized in that: An annular groove (9) is formed between the inner rear side of the positioning sleeve (4) and the sealing ring (8), and the annular groove (9) is used to block dust or lubricating oil.

6. The servo motor structure for an industrial robot according to claim 4, characterized in that: The annular portion (10) and the lip portion (11) are both engaged and connected to the front interior of the body (1).

7. The servo motor structure for an industrial robot according to claim 4, characterized in that: The front end diameter of the annular portion (10) is wider than the rear end, and the lip portion (11) is inclined, with the rear end lower than the front end.

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