Servo motor with good dustproof effect for machine tool
By adding sealing rings and sealing plates at the connections and key parts of the servo motor, combined with the design of the elastic pad and flange shaft seal, the problem of insufficient dust protection performance of the servo motor is solved, and higher dust protection effect and structural stability are achieved, meeting the high precision and high load requirements of machine tool processing.
Patent Information
- Application Number
- CN202422245135.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing servo motors have insufficient dust resistance and poor structural stability, which cannot meet the high precision and high load requirements of machine tool processing.
Seal rings and sealing plates are added at multiple connections and key parts of the servo motor, and hexagonal screws and Phillips screws are used to design the pad. Flange shaft seals are installed at both ends of the shaft, and rounded corners and installation holes are designed at the front end cover to enhance sealing and structural stability.
It significantly improves the dustproof performance of the servo motor, extends the service life, reduces faults and repair costs, ensures stable operation in complex environments, and improves transmission efficiency and structural stability.
Smart Images

Figure CN223309669U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of servo motors, in particular to a servo motor for machine tools with good dustproof effect. Background Art
[0002] A servo motor is a high-performance motor system designed for precise control of mechanical motion. It precisely adjusts speed, position, and acceleration based on input control signals such as voltage, current, or pulses, enabling precise manipulation of mechanical components. Servo motors are widely used in industrial automation, robotics, CNC machine tools, aerospace, medical equipment, and precision instrumentation, and are an indispensable component in modern manufacturing. This motor system typically consists of a servo motor, a servo controller, and a feedback device, forming a closed-loop control system. The servo controller receives external commands and adjusts the motor's operating state based on feedback signals to ensure precise matching of actual and desired motion. A feedback device, such as an encoder or resolver, monitors the motor's position and speed in real time and feeds this information back to the controller for precise control. Servo motors are renowned for their high precision, fast response, reliability, and stability. They maintain stable performance under complex and changing operating conditions, meeting various precision machining and positioning requirements. Servo motors also offer excellent dynamic characteristics and overload capacity, enabling them to handle complex motions such as rapid starts, stops, and reversals. The existing technology has insufficient dust-proof performance and poor structural stability, which needs to be improved. To this end, we propose a servo motor with good dust-proof effect for machine tools. Utility Model Content
[0003] (1) Technical problems solved
[0004] In view of the deficiencies in the prior art, the utility model provides a servo motor for machine tools with good dustproof effect, which solves the above-mentioned problems.
[0005] (2) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a servo motor with good dustproof effect for machine tools, comprising a front shell, the left side of the front shell is connected to the rear shell by a hexagon socket screw, the top of the rear shell is provided with a connection interface 1 and a connection interface 2, one side of the rear shell is connected to the rear cover by a cross screw, a sealing plate is provided between the rear cover and the rear shell, the right side of the front shell is connected to the front cover by a hexagon socket screw, and a rotating shaft is provided inside the front cover.
[0007] Preferably, the connection interface 1 is connected to a connection interface 1 sealing ring via a thread, and the connection interface 2 is connected to a connection interface 2 sealing ring via a thread.
[0008] Preferably, the outer surface of the hexagon socket screw is provided with a second spring washer, and the outer surface of the cross screw is provided with a first spring washer.
[0009] Preferably, flange shaft seal 2 and flange shaft seal 1 are sleeved on both ends of the rotating shaft, and a sealing ring is provided in the inner groove of flange shaft seal 1.
[0010] Preferably, a rubber sealing ring 1 is provided at the connection between the hexagon socket screw and the front shell, and a rubber sealing ring 2 is provided at the connection between the front shell and the front end cover.
[0011] Preferably, the outer circumferential surface of one end of the rotating shaft is flat.
[0012] Preferably, the corners of the front end cover are rounded, four mounting holes are provided inside the front end cover, and a nameplate is provided on one side surface of the rear cover.
[0013] (3) Beneficial effects
[0014] Compared with the prior art, the present invention provides a servo motor with good dustproof effect for machine tools, which has the following beneficial effects:
[0015] 1. A servo motor with good dust-proof effect for machine tools effectively blocks the intrusion path of dust and impurities by adding sealing rings and sealing sheets at multiple connections and key positions of the servo motor, such as connection interface 1, connection interface 2, the connection between the hexagon socket screw and the front housing, the connection between the front housing and the front cover, and flange seals provided at both ends of the rotating shaft, thereby significantly improving the dust-proof performance of the servo motor, thereby extending the service life of the motor and reducing failures and maintenance costs caused by dust.
[0016] This dust-resistant servo motor for machine tools utilizes hexagon socket and Phillips screws with spring washers, ensuring secure connection between components while also reducing vibration-induced loosening and seal failure through the cushioning effect of the spring washers. Furthermore, the rounded corners of the front cover and the arrangement of internal mounting holes further enhance structural stability and sealing, ensuring the servo motor maintains optimal operation in complex and changing machine tool environments.
[0017] 3. This dust-resistant servo motor for machine tools features a flat outer surface on one end of the shaft, ensuring precise fit with specific transmission components. This reduces energy loss during transmission and improves efficiency. Furthermore, its excellent dust-proof performance and stable structural design provide a strong guarantee for the servo motor's smooth operation, enabling it to perform exceptionally well under high-speed, high-precision, and high-load conditions, meeting the stringent performance requirements of machine tool processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of the utility model;
[0019] Figure 2 This is a schematic side view of the utility model;
[0020] Figure 3 This is a schematic cross-sectional view of the utility model;
[0021] Figure 4 It is a schematic diagram of the left side view of the utility model.
[0022] In the figure: 1. Hexagon socket screw; 2. Rear cover; 3. Sealing piece; 4. Rear housing; 5. Connection interface 1; 6. Sealing ring of connection interface 1; 7. Sealing ring of connection interface 2; 8. Connection interface 2; 9. Front housing; 10. Front cover; 11. Mounting hole; 12. Flange seal 1; 13. Sealing ring; 14. Rotating shaft; 15. Nameplate; 16. Flange seal 2; 17. Rubber sealing ring 1; 18. Rubber sealing ring 2; 19. Spring washer 1; 20. Spring washer 2; 21. Cross screw. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] See also Figure 1-4 A servo motor with good dustproof effect for machine tools includes a front housing 9, the left side of the front housing 9 is connected to the rear housing 4 by a hexagon socket screw 1, the top of the rear housing 4 is provided with a connection interface 1 5 and a connection interface 2 8, one side of the rear housing 4 is connected to the rear cover 2 by a cross screw 21, a sealing sheet 3 is provided between the rear cover 2 and the rear housing 4, the right side of the front housing 9 is connected to the front cover 10 by a hexagon socket screw 1, and a rotating shaft 14 is provided inside the front cover 10.
[0025] Furthermore, the connection interface 1 5 is connected to the connection interface 1 sealing ring 6 through a thread, and the connection interface 2 8 is connected to the connection interface 2 sealing ring 7 through a thread.
[0026] Furthermore, the outer surface of the hexagon socket screw 1 is provided with a spring washer 20, and the outer surface of the cross screw 21 is provided with a spring washer 19.
[0027] Furthermore, flange seal 2 16 and flange seal 1 12 are sleeved on both ends of the rotating shaft 14 , and a sealing ring 13 is provided in the inner groove of flange seal 12 .
[0028] Furthermore, a rubber sealing ring 17 is provided at the connection between the hexagon socket screw 1 and the front shell 9, and a rubber sealing ring 2 18 is provided at the connection between the front shell 9 and the front end cover 10.
[0029] Furthermore, the outer surface of one end of the rotating shaft 14 is flat.
[0030] Furthermore, the corners of the front end cover 10 are rounded, four mounting holes 11 are provided inside the front end cover 10, and a nameplate 15 is provided on one side surface of the rear cover 2.
[0031] Working principle: First, the front housing 9 and the rear housing 4 are tightly connected by the hexagon socket screw 1, and a rubber sealing ring 17 is added at the connection to ensure the sealing between the two. A connection interface 1 5 and a connection interface 2 8 are provided on the top of the rear housing 4. These two interfaces are tightly combined with the connection interface 1 sealing ring 6 and the connection interface 2 sealing ring 7 respectively through threaded connection, effectively preventing dust from invading from the interface. At the same time, one side of the rear housing 4 is connected to the rear cover 2 by a cross screw 21. The outer surface of the cross screw 21 is covered with a spring washer 19, which increases the stability of the connection and reduces the impact of vibration on the connection. The sealing plate 3 provided between the rear cover 2 and the rear housing 4 further enhances the overall dustproof effect. In the power transmission part of the servo motor, the rotating shaft 14 is a key component. Its two ends are respectively covered with flange shaft seal 2 16 and flange shaft seal 1 12, and a sealing ring 13 is provided in the internal groove of flange shaft seal 12. These designs together constitute all-round dustproof protection for the rotating shaft 14. The outer surface of the circumference of one end of the rotating shaft 14 is flat, which may be matched with a specific transmission mechanism to achieve more stable power transmission. In addition, the right side of the front shell 9 is tightly connected to the front cover 10 through the hexagonal screw 1 and the rubber sealing ring 2 18. The corners of the front cover 10 are rounded, which not only enhances the stability of the structure, but also avoids the possible damage to the operator caused by sharp edges. Four mounting holes 11 are provided inside the front cover 10 to facilitate the installation and fixation of the servo motor and other components. A nameplate 15 is provided on one side of the rear cover 2 to indicate the model, specifications and important parameter information of the motor.
[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A servo motor with good dustproof effect for machine tools, comprising a front housing (9), characterized in that: The left side of the front housing (9) is connected to the rear housing (4) via a hexagon socket screw (1); a connection interface 1 (5) and a connection interface 2 (8) are provided above the rear housing (4); one side of the rear housing (4) is connected to the rear cover (2) via a cross screw (21); a sealing sheet (3) is provided between the rear cover (2) and the rear housing (4); the right side of the front housing (9) is connected to the front end cover (10) via a hexagon socket screw (1); a rotating shaft (14) is provided inside the front end cover (10).
2. The servo motor with good dustproof effect for machine tools according to claim 1, characterized in that: The connection interface 1 (5) is connected to the connection interface 1 sealing ring (6) via a thread, and the connection interface 2 (8) is connected to the connection interface 2 sealing ring (7) via a thread.
3. The servo motor with good dustproof effect for machine tools according to claim 1, characterized in that: The outer surface of the hexagon socket screw (1) is provided with a second spring washer (20), and the outer surface of the cross screw (21) is provided with a first spring washer (19).
4. The servo motor with good dustproof effect for machine tools according to claim 1, characterized in that: The two ends of the rotating shaft (14) are sleeved with flange shaft seal 2 (16) and flange shaft seal 1 (12), and a sealing ring (13) is provided at the inner groove of flange shaft seal 1 (12).
5. The servo motor with good dustproof effect for machine tools according to claim 1, characterized in that: A first rubber sealing ring (17) is provided at the connection between the hexagon socket screw (1) and the front housing (9), and a second rubber sealing ring (18) is provided at the connection between the front housing (9) and the front end cover (10).
6. The servo motor with good dustproof effect for machine tools according to claim 1, characterized in that: The outer surface of one end of the rotating shaft (14) is flat.
7. The servo motor with good dustproof effect for machine tools according to claim 1, characterized in that: The corners of the front end cover (10) are rounded, four mounting holes (11) are provided inside the front end cover (10), and a nameplate (15) is provided on one side surface of the rear cover (2).