Air cylinder structure

Abstract

The utility model discloses an air cylinder structure which comprises an air cylinder and a front cover, and groove bodies are arranged on two sides of the air cylinder. A gas path hole is formed in the upper part of the tank body; an opening groove is formed in the lower part of the groove body; the two ends of the air cylinder are provided with an air channel hole and an air cylinder inner hole, the air channel hole is aligned with the air channel small hole, the front cover is provided with an air channel small hole and an air cylinder small hole, the diameter of the air channel hole is larger than that of the air channel small hole, the diameter of the air channel inner hole is larger than that of the air cylinder small hole, the air cylinder is provided with a threaded groove, and the front cover is provided with an upper threaded hole and a lower threaded hole. The air cylinder is connected with the front cover through a threaded groove, a special sealing gasket is arranged between the air cylinder and the front cover, and the shape of the sealing gasket corresponds to the hole shape of an air channel hole and the hole shape of an inner hole of the air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders, in particular to a cylinder structure. Background Art

[0002] The cylinder structure is a complex and important field. The design background of cylinders is usually related to improving the performance, efficiency, and reliability of cylinders. In industrial automation and mechanical engineering, as an actuator that converts pneumatic energy into mechanical energy, the design of the air passage holes of the cylinder directly affects the working performance of the cylinder. Existing technologies may have problems such as low stability, waste of air source, or complex structure. Traditional cylinders may have problems such as unstable gas supply or rapid wear of cylinder seals. New designs aim to optimize the air intake method by improving the air passage holes, reducing gas consumption and wear. The existing air guide groove and exhaust hole structure of cylinders may have problems such as complex structure and difficult disassembly and assembly. The purpose of the new design is to simplify the structure, facilitate disassembly and assembly, and increase the operating speed. The new air passage hole design needs to consider improving airtightness and reducing air leakage. The design of the cylinder is to solve the deficiencies in the existing technology and meet higher industrial application requirements.

[0003] In the existing technology, in a servo bottle-pulling lifting mechanism clamping cylinder with the patent number CN217127267 disclosed, the utility model includes a clamping cylinder, the clamping cylinder groove and the inward dust-proof rotary sealing groove, which provide guarantee for the long-term operation of the equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cylinder structure. To achieve the above purpose, the utility model provides the following technical solution: A cylinder structure includes a cylinder and an end cover. Grooves are provided on both sides of the cylinder; air passage holes are provided above the grooves; an opening groove is provided below the grooves; the end cover is provided with air passage small holes and piston small holes. The aperture of the air passage holes is larger than that of the air passage small holes. The aperture of the inner air passage is larger than that of the piston small holes. The cylinder is provided with a threaded groove. The end cover is provided with an upper threaded hole and a lower threaded hole. The cylinder is connected to the end cover through the threaded groove. A special sealing gasket is provided between the cylinder and the end cover. The shape of the sealing gasket corresponds to the hole shapes of the air passage holes and the piston holes.

[0005] Preferably, the end cover is located at one end of the cylinder. The end cover is a key component for fixing and sealing the cylinder assembly. Air passage small holes and piston small holes for installation and positioning are provided thereon, and an opening groove is provided below the groove;

[0006] Preferably, the air passage holes are openings at both ends of the cylinder for connecting the air source and exhausting. Their aperture is larger than the air passage small holes on the end cover to ensure unobstructed gas flow.

[0007] Preferably, the piston hole is a hole in the cylinder corresponding to the air passage hole, and its diameter is larger than the piston small hole on the end cover to ensure smooth movement of the piston in the cylinder.

[0008] Preferably, the threaded groove is a threaded groove machined on the cylinder for fastening connection with the end cover to ensure the stability of the cylinder assembly.

[0009] Preferably, the upper threaded hole and the lower threaded hole: the corresponding threaded holes on the end cover cooperate with the threaded groove on the cylinder, and the connection between the cylinder and the end cover is realized by fastening with bolts.

[0010] Preferably, a special gasket is provided between the cylinder and the end cover to provide airtight sealing and prevent gas leakage.

[0011] Preferably, the shape and size of the gasket are customized according to the hole shapes of the air passage hole and the piston hole to achieve the best sealing effect.

[0012] Preferably, the tight fit of the special gasket with the cylinder and the end cover provides excellent sealing performance, reduces gas leakage during the operation of the cylinder, and improves energy efficiency.

[0013] Preferably, the design of the threaded holes on the end cover facilitates quick disassembly and assembly, making it more convenient to maintain and replace the gasket.

[0014] Preferably, the use of threaded connection and special gasket improves the durability of the cylinder and extends its service life.

[0015] Preferably, this cylinder design can adapt to different working pressures and environmental conditions, and has good versatility and adaptability.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The cylinder of the present utility model is integrally cast, which is more convenient for processing.

[0018] 2. A special gasket is provided to ensure airtightness.

[0019] 3. Piston small holes and air passage small holes are provided on the end cover, which is more convenient than directly machining the whole air passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the cylinder of the present utility model. [[ID=4))

[0021] Figure 2 It is a schematic diagram of the end cover of the present utility model.

[0022] Figure 3 It is a schematic diagram of the gasket of the present utility model.

[0023] In the figure: 1. Trough body; 2. Air path hole; 3. Piston hole; 4. Sealing gasket; 5. Upper threaded hole; 6. Air path small hole; 7. Piston small hole; 8. Lower threaded hole; 9. End cover; 10. Cylinder; 11. Opening groove; 12. Threaded groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] As a key component in industrial automation and mechanical engineering, the material selection of the cylinder has a crucial impact on the performance, life and reliability of the cylinder. The following is a detailed analysis of the cylinder material selection:

[0026] Carbon steel: Carbon steel is one of the most common cylinder materials, especially ordinary carbon steel (such as Q235), which is widely used due to its low cost and good processing properties. Carbon steel cylinders are suitable for general loads and working environments, but may not be the best choice for applications with higher requirements for corrosion resistance, high pressure resistance, and high temperature performance.

[0027] Stainless steel: Stainless steel cylinders have excellent corrosion resistance and are suitable for use in harsh environments such as moisture and chemical corrosion. Common stainless steel materials include 304 and 316. Among them, 316 stainless steel has better resistance to pitting corrosion and chloride corrosion due to its molybdenum content.

[0028] Aluminum Alloy: Aluminum alloy cylinders are chosen for applications requiring weight reduction and rapid heat dissipation due to their light weight, high strength, and good thermal conductivity. Aluminum alloy also has good corrosion resistance, but its strength and wear resistance are not as good as carbon steel and stainless steel.

[0029] Cast iron: Cast iron cylinders have good casting properties and cost-effectiveness, and are suitable for manufacturing cylinders with complex shapes or large sizes. However, cast iron has relatively low toughness and fatigue strength, and is suitable for occasions with small vibration and shock loads.

[0030] Alloy steel: Alloy steel cylinders, such as 45 steel and 40Cr, have improved strength, toughness, and wear resistance through the addition of alloying elements. Alloy steel cylinders are suitable for applications that require high loads and long service life.

[0031] Composite materials: Composite cylinders combine the advantages of multiple materials, such as high strength, light weight, corrosion resistance, etc., and are suitable for applications with special requirements, such as aerospace, high-end medical equipment, etc.

[0032] Titanium alloy: Titanium alloy cylinders have unique advantages in high-end application fields (such as medical devices and deep-sea equipment) due to their high strength, low density, excellent corrosion resistance, and biocompatibility. Selection considerations: Operating environment: including temperature, humidity, chemical corrosiveness, etc. Load requirements: The force and torque that the cylinder needs to withstand. Service life: The expected operating cycle and maintenance frequency. Cost-effectiveness: Material cost, processing cost, and maintenance cost. Machining performance: The casting, machining, welding, etc. performance of the material. Safety standards: Compliance with industry safety standards and specifications. The selection of cylinder material is a comprehensive decision-making process and needs to be determined according to specific application requirements and working conditions. In some cases, a combination of multiple materials or surface treatment technologies (such as plating, coating) may be required to meet specific performance requirements. With the development of new materials and processing technologies, the design and manufacture of cylinders will be continuously optimized to adapt to a wider range of application requirements.

[0033] A cylinder structure. In this embodiment, the cylinder design: There are several piston holes (3) provided on the cylinder (10). An air passage hole (2) is provided above the groove body (1), the aperture of the air passage hole (2) is larger than that of the air passage small hole (6), the air passage hole (2) is aligned with the air passage small hole (6), and the piston hole (3) is aligned with the piston small hole (7). The aperture of the piston hole (3) is larger than that of the piston small hole (7), and this design helps to improve the gas flow efficiency and reduce the pressure loss.

[0034] Thread groove (12) machining: Thread grooves (10) are machined on the cylinder (10), and these thread grooves (12) will be used for fastening connection with the end cover (9) to ensure the stability and sealing performance of the cylinder assembly.

[0035] The machining method of the cylinder thread groove (12) usually needs to be determined according to the material of the cylinder, the size and shape of the thread groove (12), and the production batch. The following are several common machining methods for the thread groove (12):

[0036] Turning: Suitable for machining thread grooves (12) on the outer cylindrical surface, and a single-edge or multi-edge turning tool can be used for machining.

[0037] Milling: Use a vertical milling cutter or a round nose milling cutter to mill out the thread groove (12) on the plane or curved surface of the cylinder.

[0038] Thread grinding: For thread grooves (12) with higher precision requirements, a thread grinding machine can be used for precision grinding.

[0039] Tapping: If the thread groove (12) is an internal thread, a tapping tool can be used for machining. Tapping can be carried out manually or mechanically.

[0040] CNC Machining: CNC lathes or CNC milling machines can automatically complete the machining of the thread groove (12) according to a preset program, which is suitable for complex shapes or mass production. Electrical Discharge Machining (EDM): For difficult-to-machine materials or thread grooves (12) with complex shapes, wire electrical discharge machining or electrical discharge profiling can be used.

[0041] Laser Cutting: Use a laser cutting machine to cut the shape of the thread groove (12) on the cylinder, which is suitable for rapid prototyping or small batch production.

[0042] Thread Rolling: This is a non-cutting machining method that cold-forms the thread on the cylinder through a thread rolling tool.

[0043] Casting or Forging: In some cases, the thread groove (12) can be directly formed during the casting or forging process.

[0044] When machining the thread groove (12), the following factors need to be considered: Different materials may require different machining methods, select a suitable machining method according to the accuracy requirements of the thread, mass production may require a machining method with a higher degree of automation, select an economical and efficient machining method to control costs, and determine the machining method based on the existing machining equipment. After machining, quality inspection should be carried out on the thread groove (12) to ensure that the dimensional accuracy, surface finish and shape meet the design requirements.

[0045] End Cover Design: The upper thread hole (5) and the lower thread hole (8) are provided on the end cover (9), and these thread holes are matched with the thread groove (12) on the cylinder (10), and the cylinder and the end cover are firmly connected by bolts or screws passing through these holes.

[0046] The cylinder end cover is an important part of the cylinder assembly, and its machining method and material selection have a direct impact on the overall performance and reliability of the cylinder.

[0047] Machining Method: Casting: The end cover can usually be produced by casting, including sand casting and die casting. Casting can manufacture parts with complex shapes, but subsequent cleaning and machining are required.

[0048] Forging: Forging is a machining method that changes the shape of metal materials by applying high pressure, which can improve the density and strength of the materials and is suitable for end covers with high strength requirements.

[0049] Machining: Machining includes milling, turning, drilling, tapping, etc., which are used to precisely manufacture the dimensions and shapes of the end cover to ensure its compatibility with other cylinder components.

[0050] CNC Machining: CNC machine tools can provide high-precision machining, which is suitable for end covers with complex shapes to ensure machining accuracy and repeatability.

[0051] Welding: If the end cap consists of multiple parts, assembly may be required by welding. Welding techniques include TIG welding, MIG welding, etc. It is necessary to ensure the welding quality to avoid leakage.

[0052] Grinding and polishing: Grind and polish the surface of the end cap to obtain a smooth surface, reduce friction during installation, and improve the appearance quality.

[0053] Material selection:

[0054] Aluminum alloy: Aluminum alloy end caps are widely used due to their light weight, good thermal conductivity, and high workability. Carbon steel: Carbon steel end caps have good strength and cost-effectiveness and are suitable for standard loads and working environments.

[0055] Stainless steel: Stainless steel end caps (such as grades 304 and 316) have excellent corrosion resistance and are suitable for humid or chemically corrosive environments. Cast iron: Cast iron end caps have good casting performance and cost-effectiveness and are suitable for large-sized or complex-shaped components.

[0056] Alloy steel: Such as steel No. 45, 40Cr, etc. The addition of alloying elements improves the strength, toughness, and wear resistance of the end cap.

[0057] Composite materials: In some special applications, composite materials may be used to manufacture end caps to achieve specific performance requirements, such as light weight, high strength, or chemical corrosion resistance.

[0058] Plastics: In low-load or non-corrosive environments, plastics (such as nylon, POM) can be used to manufacture end caps to reduce weight and cost. When selecting materials and processing methods, the working conditions of the cylinder, load requirements, environmental factors, cost-effectiveness, and expected service life need to be considered. Through reasonable design and processing, the performance of the cylinder end cap can be ensured to meet the needs of industrial applications.

[0059] Gasket installation: Install a special gasket (4) between the cylinder (10) and the end cap (9). The shape and size of the gasket (4) are customized according to the hole patterns of the gas path hole (2) and the piston hole (3) to achieve the best sealing effect and prevent gas leakage.

[0060] The cylinder gasket is a key component to ensure the sealing performance of the cylinder assembly, and its material and processing method directly affect the sealing and reliability of the cylinder.

[0061] Material Selection: The materials of the cylinder gasket usually include the following: Metal-asbestos gasket: A traditional gasket material, but asbestos materials are gradually being phased out due to health concerns. Metal-composite gasket: Combines the high strength of metal and the excellent sealing performance of composite materials. All-metal gasket: Provides good high-temperature and high-pressure resistance, suitable for harsh working conditions. Non-asbestos materials: Such as ceramic fiber, carbon fiber, etc., have good high-temperature and chemical resistance. Rubber and synthetic materials: Such as nitrile rubber (NBR), fluororubber (FKM), etc., have good elasticity and sealing performance, suitable for most working conditions.

[0062] Processing Methods: Mold pressing: Suitable for gaskets made of rubber and other plastic materials, formed by a mold under high temperature and pressure. Hot pressing: Forms the material under high temperature and pressure, suitable for metals and some synthetic materials. Cutting: For hard materials such as metal sheets, the required shape can be obtained by mechanical cutting. Laminating: Layers different materials and combines them under high temperature and pressure to obtain better comprehensive performance. Grinding and polishing: The formed gasket needs to be ground and polished to ensure a flat surface, no burrs, and improve the sealing performance.

[0063] Special Treatments: After processing, the gasket may need to undergo some special treatments to improve performance: Heat treatment: Improves the hardness and strength of the material. Chemical treatment: Improves corrosion resistance and chemical resistance. Surface coating: Such as coating PTFE (polytetrafluoroethylene) to enhance non-stickiness and temperature resistance.

[0064] Quality Control: To ensure the performance of the cylinder gasket, strict quality control is required during the production process, including: Dimension accuracy detection: Ensures that the dimensions of the gasket meet the design requirements. Material property testing: Checks the temperature resistance, pressure resistance, and corrosion resistance of the material. Sealing performance testing: Simulates actual working conditions to test the sealing effect of the gasket. By carefully selecting materials and processing methods, and through strict quality control, cylinder gaskets with excellent performance can be manufactured, thereby improving the reliability and service life of the entire cylinder system.

[0065] Assembly Process: First, place the gasket (4) at one end of the cylinder (10), ensuring that the shape of the gasket corresponds to the hole patterns of the air passage hole (2) and the piston hole (3). Then, align the thread groove (12) with the upper thread hole (5) and the lower thread hole (8), install the end cap (9) onto the cylinder (10), and fasten it with appropriate fasteners.

[0066] Operation Verification: After completion of assembly, conduct a gas tightness test to verify the sealing performance of the cylinder assembly. By injecting compressed air into the cylinder (10), check whether there is gas leakage from the connection between the cylinder (10) and the end cap (9).

[0067] Application scenario: This cylinder structure is applicable to a variety of industrial automation fields, such as robotic arms, conveyor systems, pressure tools, etc., especially in occasions where high-precision and high-efficiency gas control are required.

[0068] Maintenance and replacement: Since the design of the end cap (9) allows for quick disassembly and assembly, it becomes very convenient to maintain and replace the gasket (4). When it is necessary to replace the gasket or perform internal cylinder maintenance, simply disassemble the end cap (9) to easily access the interior of the cylinder. Extended functions: In addition, the design of the cylinder (10) and the end cap (9) can integrate additional sensors or actuators, such as position sensors, magnetic switches, etc., to achieve more advanced control and monitoring functions and improve the intelligence level of the entire system. Through the description of this detailed embodiment, we can clearly understand the design advantages and operation methods of this cylinder structure, as well as their potential value in actual applications.

[0069] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. 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, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A cylinder structure, comprising a cylinder (10) and an end cover (9), characterized in that: On both sides of the cylinder (10), there are groove bodies (1), and several piston holes (3) are provided in the middle of the cylinder (10); an air passage hole (2) is provided above the groove body (1); an opening groove (11) is provided below the groove body (1); the end cover (9) is provided with an air passage small hole (6) and a piston small hole (7).

2. The cylinder structure according to claim 1, characterized in that, The air passage hole (2) is aligned with the air passage small hole (6), and the piston hole (3) is aligned with the piston small hole (7).

3. The cylinder structure according to claim 1, characterized in that, The aperture of the air passage hole (2) is larger than that of the air passage small hole (6), and the aperture of the piston hole (3) is larger than that of the piston small hole (7).

4. The cylinder structure according to claim 1, wherein The cylinder (10) is provided with a threaded groove (12).

5. The cylinder structure according to claim 1, wherein, The end cover (9) is provided with an upper threaded hole (5) and a lower threaded hole (8).

6. The cylinder structure according to claim 4 or 5, characterized in that, The cylinder (10) is connected to the end cover (9) through the threaded groove (12).

7. The cylinder structure according to claim 1, characterized in that, A special sealing gasket (4) is provided between the cylinder (10) and the end cover (9).

8. The cylinder structure according to claim 7, wherein, The sealing gasket (4) has the same shape as the opening of the cylinder.

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