Push rod structure of servo electric cylinder

Abstract

The push rod structure of the servo electric cylinder comprises an electric air cylinder and a push rod balance moving seat, the electric air cylinder is arranged above a base, a servo motor is arranged on the other side of the upper portion of the base, a lower fixing sleeve is arranged at the lower end of the outer portion of the electric air cylinder, an upper fixing sleeve is arranged at the upper end of the outer portion of the electric air cylinder, and the push rod balance moving seat is arranged on the push rod balance moving seat. Guide rods are arranged at the positions of the four corners in the upper fixing sleeve, and the push rod balance moving seat is connected with the guide rods through first sliding sleeves. The push rod limiting check block is arranged below the push rod balance moving seat, the lowest downward moving position of the push rod balance moving seat can be limited and positioned through the push rod limiting check block, meanwhile, the telescopic length of the push rod is accurately positioned, and the telescopic distance cannot be controlled only through a servo motor. The telescopic length of the push rod is ensured not to be wrong, the double-guarantee effect is achieved, and the movement accuracy of the push rod is improved.

Description

Technical Field

[0001] The utility model relates to the field of servo electric cylinders, in particular to a push rod structure of a servo electric cylinder. Background Technique

[0002] A servo electric cylinder is a modular product that integrates a servo motor and a lead screw. Because of closed-loop servo control, it has high control precision, low cost, flexible configuration and other characteristics. It is the best substitute for hydraulic cylinders and air cylinders and is widely used in industries such as industry, military, entertainment facilities, and automobiles. A servo cylinder is a modular product that integrates a servo motor and a rod. It converts the rotational motion of the servo motor into linear motion, and at the same time converts the advantages of the servo motor - rotational control, rotational control, torque control into - speed control, position control, and thrust control. It is a new product that realizes a series of high-precision linear motions.

[0003] In the prior art, there are still certain deficiencies in the use of the push rod structure of the servo electric cylinder. The length of the traditional push rod's telescopic movement is usually controlled by a servo motor. If the rotational speed of the servo motor is inaccurate, it will cause an error in the extended length of the push rod, affecting the control accuracy of the device. Moreover, generally, the push rod is of a circular structure. If the push rod is relatively long, the center of gravity will be unstable, and the push rod will show a slight shaking phenomenon, resulting in unstable linear motion of the push rod. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a push rod structure of a servo electric cylinder to solve the problems mentioned in the above background technique, that is, the length of the traditional push rod's telescopic movement is usually controlled by a servo motor. If the rotational speed of the servo motor is inaccurate, it will cause an error in the extended length of the push rod, affecting the control accuracy of the device. Moreover, generally, the push rod is of a circular structure. If the push rod is relatively long, the center of gravity will be unstable, and the push rod will show a slight shaking phenomenon, resulting in unstable linear motion of the push rod.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A push rod structure of a servo electric cylinder, including an electric cylinder and a push rod balance moving seat. The electric cylinder is arranged above the base, and a servo motor is arranged on the other side above the base. A lower fixing sleeve is arranged at the lower end of the outside of the electric cylinder, and an upper fixing sleeve is arranged at the upper end of the outside of the electric cylinder. Guide rods are arranged at the four corners inside the upper fixing sleeve. The push rod balance moving seat is connected to the guide rods through first sliding sleeves. A push rod limit stop block is arranged below the push rod balance moving seat. A push rod assembly port is arranged above the upper fixing sleeve, and a sealing and locking cover is arranged above the push rod assembly port. A push rod is arranged inside the electric cylinder, and a mounting stud is arranged at the upper end of the push rod. Anti-slip strips are arranged at the middle positions on both sides of the electric cylinder.

[0006] In a further embodiment, the upper fixed sleeve is connected to the electric cylinder through a combined inlay head, and the upper fixed sleeve and the combined inlay head are fixedly connected through a third fixing bolt.

[0007] In a further embodiment, the push rod balance moving seat is slidably connected to the upper fixed sleeve through a positioning slide plate and a positioning chute, and the push rod assembly port is welded to the positioning slide plate through a bracket.

[0008] In a further embodiment, the push rod limiting block is slidably connected to the guide rod through a second sliding sleeve, and the push rod limiting block is fixedly connected to the electric cylinder through a first fixing bolt.

[0009] In a further embodiment, the push rod is inlaid and connected to the push rod assembly port through a mounting stud, the sealing and locking cover is fixedly connected to the mounting stud through a thread, and the sealing and locking cover is fixedly connected to the push rod assembly port through a second fixing bolt.

[0010] In a further embodiment, a rubber sleeve is provided below the push rod assembly port, and the rubber sleeve is inlaid and connected to the push rod.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. In the present utility model, a push rod limiting block is provided below the push rod balance moving seat. The push rod limiting block can limit and position the lowest position of the downward movement of the push rod balance moving seat. At the same time, it can accurately position the length of the push rod's telescopic movement. Instead of relying solely on the servo motor to control the telescopic distance, it ensures that the length of the push rod's telescopic movement is correct, with a dual guarantee function, increasing the accuracy of the push rod's movement, making it easier to operate. And push rod balance moving seats are provided on both sides of the push rod, which can support both sides of the push rod, playing a role in balancing and stabilizing, so that the push rod maintains a stable center of gravity during the telescopic process, making its movement more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a structural schematic diagram of a push rod structure of a servo electric cylinder of the present utility model;

[0014] Figure 2 is a structural schematic diagram of the push rod balance moving seat of the present utility model;

[0015] Figure 3 is a side view of the push rod balance moving seat of the present utility model;

[0016] Figure 4 is a top view of a push rod structure of a servo electric cylinder of the present utility model;

[0017] Figure 5 is a structural schematic diagram of the push rod of the present utility model;

[0018] Figure 6 This is a schematic structural view of the upper fixing sleeve of the present utility model.

[0019] In the figure: 1. Electric cylinder; 2. Guide rod; 3. First sliding sleeve; 4. Push rod balance moving seat; 5. Second sliding sleeve; 6. Push rod limit stop block; 7. First fixing bolt; 8. Lower fixing sleeve; 9. Base; 10. Servo motor; 11. Positioning slide plate; 12. Upper fixing sleeve; 13. Bracket; 14. Rubber sleeve; 15. Push rod assembly port; 16. Sealing and locking cover; 17. Mounting stud; 18. Second fixing bolt; 19. Third fixing bolt; 20. Combined inlay head; 21. Push rod; 22. Anti-slip strip; 23. Positioning chute. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Please refer to Figures 1-6 , an embodiment provided by the present utility model: A push rod structure of a servo electric cylinder, including an electric cylinder 1 and a push rod balance moving seat 4. The electric cylinder 1 is arranged above the base 9, and a servo motor 10 is arranged on the other side above the base 9. A lower fixing sleeve 8 is arranged at the lower end of the outside of the electric cylinder 1, and an upper fixing sleeve 12 is arranged at the upper end of the outside of the electric cylinder 1. Guide rods 2 are arranged at the positions of the four corners inside the upper fixing sleeve 12. The push rod balance moving seat 4 is connected to the guide rod 2 through the first sliding sleeve 3. A push rod limit stop block 6 is arranged below the push rod balance moving seat 4. A push rod assembly port 15 is arranged above the upper fixing sleeve 12, and a sealing and locking cover 16 is arranged above the push rod assembly port 15. A push rod 21 is arranged inside the electric cylinder 1, and a mounting stud 17 is arranged at the upper end of the push rod 21. Anti-slip strips 22 are arranged at the middle positions on both sides of the electric cylinder 1; the push rod balance moving seat 4 is used to increase the stability of the telescopic movement of the push rod 21, the servo motor 10 is used to provide power for the push rod 21, the lower fixing sleeve 8 is used to fix the bottom end of the guide rod 2, the upper fixing sleeve 12 is used to fix the top end of the guide rod 2, the guide rod 2 is used to guide and position the sliding positions of the push rod balance moving seat 4 and the push rod limit stop block 6, the push rod limit stop block 6 is used to limit and position the moving position of the push rod balance moving seat 4, the push rod assembly port 15 is used to install and fix the push rod 21, and the anti-slip strip 22 is used to increase the fastening property of the installation of the first fixing bolt 7.

[0022] The upper fixed sleeve 12 is connected to the electric cylinder 1 through the combined insert head 20, and the upper fixed sleeve 12 and the combined insert head 20 are fixedly connected through the third fixing bolt 19. The combined insert head 20 is used to install and connect the upper fixed sleeve 12 and the electric cylinder 1; the push rod balance moving seat 4 and the upper fixed sleeve 12 are slidably connected through the positioning slide plate 11 and the positioning chute 23, and the push rod assembly port 15 and the positioning slide plate 11 are welded and connected through the bracket 13. The positioning slide plate 11 is used to position the position where the push rod balance moving seat 4 moves.

[0023] The push rod limit stop 6 and the guide rod 2 are slidably connected through the second sliding sleeve 5, and the push rod limit stop 6 and the electric cylinder 1 are fixedly connected through the first fixing bolt 7. The second sliding sleeve 5 is used to connect and fix the push rod limit stop 6 and the guide rod 2.

[0024] The push rod 21 and the push rod assembly port 15 are inlaid and connected through the mounting stud 17. The sealing and locking cover 16 and the mounting stud 17 are fixedly connected through threads, and the sealing and locking cover 16 and the push rod assembly port 15 are fixedly connected through the second fixing bolt 18. The sealing and locking cover 16 is used to lock the position where the mounting stud 17 and the push rod assembly port 15 are assembled to make the installation more firm; a rubber sleeve 14 is provided below the push rod assembly port 15, and the rubber sleeve 14 and the push rod 21 are inlaid and connected. The rubber sleeve 14 is used to seal the position where the push rod 21 and the push rod assembly port 15 are connected.

[0025] Working principle: When in use, according to the distance that the device needs to move, the push rod limit stop 6 is adjusted to the required height to limit and position the telescopic length of the push rod 21. It is fixed through the first fixing bolt 7. The electric cylinder 1 is connected and fixed to the required position through the mounting stud 17, converting the rotational motion of the servo motor 10 into a linear motion to adjust the push rod 21 up or down. At the same time, by means of the power of the movement of the push rod 21, the push rod balance moving seat 4 is driven to move. The push rod balance moving seat 4 supports and positions both sides of the push rod 21 to make its center of gravity stable. The push rod limit stop 6 blocks and limits the position where the push rod balance moving seat 4 moves to ensure the accuracy of the telescopic length of the push rod 21.

[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A push rod structure of a servo electric cylinder, comprising an electric cylinder (1) and a push rod balanced moving seat (4), characterized in that: The electric cylinder (1) is arranged above the base (9). On the other side above the base (9), there is a servo motor (10). At the lower end of the exterior of the electric cylinder (1), there is a lower fixing sleeve (8). At the upper end of the exterior of the electric cylinder (1), there is an upper fixing sleeve (12). At the positions of the four corners inside the upper fixing sleeve (12), there are guide rods (2). The push rod balance moving seat (4) is connected to the guide rods (2) through the first sliding sleeve (3). Below the push rod balance moving seat (4), there is a push rod limit stop block (6). Above the upper fixing sleeve (12), there is a push rod assembly opening (15). Above the push rod assembly opening (15), there is a sealing and locking cover (16). Inside the electric cylinder (1), there is a push rod (21). At the upper end of the push rod (21), there is a mounting stud (17). At the middle positions on both sides of the electric cylinder (1), there are anti-slip strips (22).

2. The push rod structure of a servo electric cylinder according to claim 1, wherein: The upper fixing sleeve (12) is connected to the electric cylinder (1) through a combined inlay head (20), and the upper fixing sleeve (12) is fixedly connected to the combined inlay head (20) through the third fixing bolt (19).

3. The push rod structure of a servo electric cylinder according to claim 1, characterized in that: The push rod balance moving seat (4) is slidably connected to the upper fixing sleeve (12) through a positioning slide plate (11) and a positioning chute (23), and the push rod assembly opening (15) is welded to the positioning slide plate (11) through a bracket (13).

4. The push rod structure of a servo electric cylinder according to claim 1, wherein: The push rod limit stop block (6) is slidably connected to the guide rod (2) through a second sliding sleeve (5), and the push rod limit stop block (6) is fixedly connected to the electric cylinder (1) through a first fixing bolt (7).

5. The push rod structure of a servo electric cylinder according to claim 1, characterized in that: The push rod (21) is inlaid and connected to the push rod assembly opening (15) through the mounting stud (17). The sealing and locking cover (16) is fixedly connected to the mounting stud (17) through threads, and the sealing and locking cover (16) is fixedly connected to the push rod assembly opening (15) through a second fixing bolt (18).

6. The push rod structure of a servo electric cylinder according to claim 1, characterized in that: Below the push rod assembly opening (15), there is a rubber sleeve (14), and the rubber sleeve (14) is inlaid and connected to the push rod (21).

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