Hollow air compression rotary air cylinder with rear sleeve

Abstract

The utility model discloses a hollow air compression rotary air cylinder with a rear sleeve, and relates to the technical field of air cylinders. An inner cylinder body and an outer cylinder body are arranged in the air cylinder body. The piston is slidably arranged in the inner cylinder body and divides the inner cylinder body into a left air chamber and a right air chamber; the static iron ring is fixed to one end of the air cylinder body and provided with a first air hole and a second air hole. The copper sleeve is sleeved on the outer side of the static iron ring; the first O-shaped ring is arranged between the air cylinder main body and the static iron ring; and the second O-shaped ring is arranged between the inner cylinder body and the outer cylinder body. By optimizing the air cylinder structure, the function of forcibly loosening the chuck is achieved, and the production efficiency and the machining quality are remarkably improved. Light-weight aluminum alloy materials are adopted, a rear connection flange is not needed, the structure is compact, installation is easy and convenient, and energy consumption and noise are reduced. The piston is provided with a self-locking device, the position can be locked after an air source is disconnected, and safety and stability of equipment are guaranteed. The multi-layer sealing design enhances the sealing performance and prolongs the service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air cylinder, specifically relates to a rear sleeve hollow air pressure rotary cylinder. BACKGROUND

[0002] In modern mechanical processing, automatic production line and various industrial equipment, as a kind of efficient power execution element, air cylinder is widely used to realize reciprocating motion, clamping, pushing and other functions.Air cylinder drives piston movement through the input of gas source, and then drives related components to complete the predetermined mechanical action.

[0003] With the continuous improvement of industrial automation level, the performance requirement of air cylinder is higher and higher, and the traditional air cylinder gradually exposes some limitations in design and function, which is difficult to fully meet the high standard demand of modern industrial production.Firstly, the chuck loosening mechanism of traditional air cylinder is not mandatory, so that the chuck is difficult to loosen in some cases, which affects production efficiency and processing quality;Secondly, the traditional air cylinder needs additional rear flange when installing, the structure is not compact enough, which increases the installation cost and complexity;Therefore, a rear sleeve hollow air pressure rotary cylinder is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve the problems mentioned in the above background art, the utility model provides a rear sleeve hollow air pressure rotary cylinder.

[0005] The utility model discloses a kind of rear sleeve hollow air pressure rotary cylinders to achieve the above purpose specifically using the following technical solutions: a rear sleeve hollow air pressure rotary cylinder, comprising:

[0006] Air cylinder main body, its inside is equipped with inner cylinder body and outer cylinder body;

[0007] Piston, slidably arranged in the inner cylinder body, separates the inner cylinder body into left gas chamber and right gas chamber;

[0008] Static iron ring, fixed to one end of air cylinder main body, it is equipped with first gas hole and second gas hole;

[0009] Copper sleeve, sleeve is set to static iron ring outside;

[0010] First O-ring, between air cylinder main body and static iron ring;

[0011] Second O-ring, between inner cylinder body and outer cylinder body;

[0012] Third O-ring, between piston and inner cylinder body;

[0013] Fourth O-ring, between retainer ring and air cylinder main body;

[0014] The first air hole and the second air hole are communicated with the left air chamber and the right air chamber through the air path on the cylinder body respectively, and are used for driving the piston to move left and right.

[0015] Further, a plurality of air path holes are arranged on the static iron ring, and the air path holes are communicated with the air path on the cylinder body one by one.

[0016] Further, the piston ring and the retainer ring are further included, the piston ring is arranged between the piston and the inner cylinder body, and the retainer ring is fixed to the end of the cylinder body.

[0017] Further, the cylinder body is made of light aluminum alloy material.

[0018] Further, the self-locking device is arranged on the piston, and is used for keeping the current position after the air source is disconnected.

[0019] Further, the fifth O-shaped ring is arranged between the cylinder body and the cylinder body, the sixth O-shaped ring is arranged between the static ring and the cylinder body, and the seventh O-shaped ring is arranged between the outer cylinder body and the cylinder body.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The utility model discloses a structure design, realizes the function of forcedly loosening the chuck, effectively solves the problem that the traditional cylinder chuck is difficult to loosen. The first air hole and the second air hole on the static iron ring and the air path in the cylinder body are designed, the forced loosening of the chuck is ensured, the production efficiency and the processing quality are remarkably improved. Meanwhile, the cylinder body adopts light aluminum alloy material, is directly connected with equipment without needing to connect flange, is compact in structure, is easy to install, reduces energy consumption and noise, meets the demand of modern industry to high efficiency, energy saving and environmental protection.

[0022] 2. The self-locking device is arranged on the piston, can lock the current position after the air source is disconnected, ensures the safety and stability of the equipment when the air source is interrupted. Through the multi-layer sealing design, the sealing performance and the reliability of the cylinder are further enhanced, and the service life is prolonged. DRAWINGS

[0023] Fig. 1 It is the structure sectional view of the utility model;

[0024] Fig. 2 It is the three-dimensional structure schematic view of the utility model;

[0025] Fig. 3 It is the structure right view of the utility model;

[0026] Reference numerals in the attached drawings: 1. Cylinder body, 2. Inner cylinder, 3. Outer cylinder, 4. Piston, 5. Stationary iron ring, 6. Copper sleeve, 7. Plug ring, 8. Protective ring, 9. Retaining ring, 10. Cylinder body, 11. Stator, 12. First O-ring, 13. Second O-ring, 14. Second O-ring, 15. Third O-ring, 16. Fourth O-ring, 17. Fifth O-ring, 18. Sixth O-ring, 19. Seventh O-ring, A. First air hole, B. Second air hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They 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. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figs. 1 to 3 As shown, a rear-mounted sleeve hollow pneumatic rotary cylinder includes:

[0032] The cylinder body 1 has an inner cylinder 2 and an outer cylinder 3 inside;

[0033] Piston 4 is slidably disposed within inner cylinder 2, dividing inner cylinder 2 into left and right air chambers;

[0034] A static iron ring 5 is fixed to one end of the cylinder body 1, and a first gas hole A and a second gas hole B are provided on the static iron ring 5;

[0035] A copper sleeve 6 is sleeved outside the static iron ring 5;

[0036] A first O-ring 12 is arranged between the cylinder body 1 and the static iron ring 5;

[0037] A second O-ring 13 is arranged between the inner cylinder body 2 and the outer cylinder body 3;

[0038] A third O-ring 15 is arranged between the piston 4 and the inner cylinder body 2;

[0039] A fourth O-ring 16 is arranged between the retainer ring 8 and the cylinder body 1;

[0040] The first gas hole A and the second gas hole B respectively communicate with the left gas chamber and the right gas chamber through the gas path on the cylinder body 1, and are used to drive the piston 4 to move left and right.

[0041] High-pressure gas enters the left gas chamber in the cylinder body 1 through the first gas hole A on the static iron ring 5, and pushes the piston 4 to move to the right. When the gas enters the right gas chamber through the second gas hole B, the piston 4 moves to the left. The copper sleeve 6 is sleeved outside the static iron ring 5 to reduce the friction between the static iron ring 5 and the cylinder body 1. The first O-ring 12 seals the connection between the cylinder body 1 and the static iron ring 5, the second O-ring 13 seals the connection between the inner cylinder body 2 and the outer cylinder body 3, the third O-ring 15 seals the connection between the piston 4 and the inner cylinder body 2, and the fourth O-ring 16 seals the connection between the retainer ring 8 and the cylinder body 1, which ensures the sealing performance and efficient operation of the cylinder.

[0042] A plurality of gas path holes are provided on the static iron ring 5, and the gas path holes correspond to the gas paths on the cylinder body 1 one by one. The plurality of gas path holes on the static iron ring 5 communicate with the gas paths on the cylinder body 1, so that high-pressure gas can enter the gas path system in the cylinder body 1 through these gas path holes. The design of the gas path holes ensures smooth flow of the gas, improves the working efficiency and response speed of the cylinder. By accurately controlling the layout and number of the gas path holes, the distribution of the gas and the movement control of the piston 4 can be optimized.

[0043] It also includes a plug ring 7 and a retainer ring 8, the plug ring 7 is arranged between the piston 4 and the inner cylinder body 2, and the retainer ring 8 is fixed to the end of the cylinder body 1. The plug ring 7 is installed between the piston 4 and the inner cylinder body 2, which is used to reduce the friction of the piston 4 during movement, improve the movement accuracy and service life of the piston 4. The retainer ring 8 is fixed to the end of the cylinder body 1, which is used to protect the end structure of the cylinder body 1 and prevent it from being damaged by external force during work. The retainer ring 8 is in sealed connection with the cylinder body 1 through the fourth O-ring 16, which further enhances the sealing performance of the cylinder.

[0044] The cylinder body 1 is made of lightweight aluminum alloy material. Not only reduces the overall weight of the cylinder, but also maintains sufficient structural strength. This material selection helps to improve the portability and installation convenience of the cylinder, while reducing energy consumption. Lightweight design makes the cylinder more stable at high speed, reduces vibration caused by uneven weight distribution.

[0045] The piston 4 is provided with a self-locking device for maintaining the current position after the gas source is disconnected. The self-locking device is installed on the piston 4, which can lock the position of the piston 4 when the gas source is disconnected, preventing the piston 4 from moving due to external force or internal pressure change. This design ensures the safety and stability of the cylinder when the gas source is interrupted, avoiding equipment failure or safety accidents caused by accidental movement of the piston 4.

[0046] It also includes a fifth O-ring 17 arranged between the cylinder body 10 and the cylinder body 1, a sixth O-ring 18 arranged between the stator 11 and the cylinder body 1, and a seventh O-ring 19 arranged between the outer cylinder body 3 and the cylinder body 1. The fifth O-ring 17 is installed between the cylinder body 10 and the cylinder body 1, the sixth O-ring 18 is installed between the stator 11 and the cylinder body 1, and the seventh O-ring 19 is installed between the outer cylinder body 3 and the cylinder body 1. These O-rings are used to seal the connection between the cylinder body 10, the stator 11 and the outer cylinder body 3 and the cylinder body 1 respectively, preventing gas leakage and ensuring the sealing performance and working reliability of the cylinder. Through multi-layer sealing design, the overall sealing effect of the cylinder is further improved.

[0047] In summary: the rear sleeve hollow air pressure rotary cylinder of the utility model realizes the function of forced loosening of the chuck, effectively solves the problem of difficult loosening of the traditional cylinder chuck. Through the first gas hole A and the second gas hole B on the static iron ring 5 and the gas path design in the cylinder body 1, the forced loosening of the chuck is ensured, and the production efficiency and processing quality are significantly improved. At the same time, the cylinder body 1 is made of lightweight aluminum alloy material, which can be directly connected with the equipment without the need of rear flange, compact structure, easy installation, reduces energy consumption and noise, meets the needs of modern industry for high efficiency, energy saving and environmental protection. In addition, the piston 4 is provided with a self-locking device, which can lock the current position after the gas source is disconnected, ensuring the safety and stability of the equipment when the gas source is interrupted. Through the multi-layer sealing design of the first O-ring 12, the second O-ring 13, the third O-ring 15, the fourth O-ring 16, the fifth O-ring 17, the sixth O-ring 18 and the seventh O-ring 19, the sealing performance and reliability of the cylinder are further enhanced, and the service life is prolonged.

[0048] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A rear-mounted sleeve hollow rotary pneumatic cylinder, characterized in that, include: The cylinder body (1) has an inner cylinder (2) and an outer cylinder (3) inside. The piston (4) is slidably disposed in the inner cylinder (2), dividing the inner cylinder (2) into a left air chamber and a right air chamber; A stationary iron ring (5) is fixed to one end of the cylinder body (1), and a first air hole (A) and a second air hole (B) are provided on it. A copper sleeve (6) is fitted on the outside of the stationary iron ring (5); The first O-ring (12) is disposed between the cylinder body (1) and the stationary iron ring (5); The second O-ring (13) is disposed between the inner cylinder (2) and the outer cylinder (3); The third O-ring (15) is disposed between the piston (4) and the inner cylinder (2); The fourth O-ring (16) is located between the retaining ring (8) and the cylinder body (1); The first air hole (A) and the second air hole (B) are connected to the left air chamber and the right air chamber respectively through the air passage on the cylinder body (1) to drive the piston (4) to move left and right.

2. A rear-mounted sleeve hollow pneumatic rotary cylinder according to claim 1, characterized in that, The stationary iron ring (5) is provided with multiple air passage holes, and the air passage holes are connected to the air passages on the cylinder body (1) one by one.

3. A rear-mounted sleeve hollow pneumatic rotary cylinder according to claim 2, characterized in that, It also includes a plug ring (7) and a retainer ring (8), wherein the plug ring (7) is disposed between the piston (4) and the inner cylinder (2), and the retainer ring (8) is fixed to the end of the cylinder body (1).

4. A rear-mounted sleeve hollow pneumatic rotary cylinder according to claim 1, characterized in that, The cylinder body (1) is made of lightweight aluminum alloy material.

5. A rear-mounted sleeve hollow pneumatic rotary cylinder according to claim 4, characterized in that, The piston (4) is equipped with a self-locking device to maintain its current position after the air source is disconnected.

6. A rear-mounted sleeve hollow pneumatic rotary cylinder according to claim 1, characterized in that, It also includes a fifth O-ring (17), which is located between the cylinder block (10) and the cylinder body (1); a sixth O-ring (18), which is located between the stator (11) and the cylinder body (1); and a seventh O-ring (19), which is located between the outer cylinder block (3) and the cylinder body (1).

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