High-precision positioning cylinder

Abstract

This utility model relates to the field of cylinder equipment, specifically a high-precision positioning cylinder, including a base, a guide rail, a cylinder body, a rectangular slider, a guide rod, and a limiting assembly. The cylinder body is fixed to the base via a mounting bracket. The rectangular slider is slidably connected to the guide rail via a sliding block. The cylinder piston rod is connected to a circular limiting plate with a guide rod, and the guide rod is embedded in the limiting groove of the rectangular slider. The limiting assembly includes a U-shaped limiting plate, a pressure plate, a strip-shaped limiting plate, a pin, and a pin hole, and its position can be adjusted to achieve movement threshold adjustment. This cylinder controls the slider positioning through the cooperation of the guide rod and the limiting groove, and utilizes the sliding of the guide rail to reduce friction, enabling precise control of the movement position, adapting to different working conditions, facilitating maintenance and adjustment, and suitable for automated applications with high positioning requirements.

Description

Technical Field

[0001] This utility model relates to the field of cylinder technology, and in particular to a high-precision positioning cylinder. Background Technology

[0002] In industrial production, cylinders, as a commonly used power actuator, are widely used in various automated equipment and mechanical devices to achieve functions such as linear reciprocating motion or oscillation. However, traditional cylinders have some shortcomings in practical use: Many traditional cylinders have low positioning accuracy, making it difficult to meet the requirements of some production processes with extremely high positional accuracy, such as precision machining and electronic assembly. Even a small positional deviation can lead to product quality problems or even product scrap, resulting in increased production costs and wasted resources.

[0003] During operation, some cylinders experience high friction between their moving parts, leading to increased resistance. This not only increases energy consumption and reduces energy efficiency but also accelerates component wear, shortens cylinder lifespan, and increases equipment maintenance and replacement costs.

[0004] Traditional cylinders typically have a fixed movement threshold, making them unable to be flexibly adjusted to meet different work requirements. On production lines that need to adapt to various working conditions or changes in product specifications, these fixed-threshold cylinders cannot meet diverse production requirements, limiting the automation level and efficiency of the production line.

[0005] Therefore, in order to solve the problems of the traditional cylinder mentioned above, it is of great practical significance to develop a high-precision positioning cylinder with high-precision positioning, low movement resistance and adjustable movement threshold. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing traditional cylinders, which suffer from low positioning accuracy and struggle to meet the demands of highly precise production processes, such as precision machining and electronic assembly. Even minute positional deviations can lead to product quality issues, or even product scrap, resulting in increased production costs and resource waste. Furthermore, some cylinders experience high friction between moving parts during operation, increasing movement resistance. This not only increases energy consumption and reduces energy efficiency but also accelerates component wear, shortens cylinder lifespan, and increases equipment maintenance and replacement costs. Traditional cylinders typically have a fixed movement threshold, making flexible adjustment impossible to meet varying operational needs. On production lines requiring adaptation to diverse working conditions or product specifications, such fixed-threshold cylinders cannot satisfy diverse production requirements, limiting the automation level and efficiency of the production line. Therefore, this invention proposes a high-precision positioning cylinder.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A high-precision positioning cylinder includes a base, on the top of which a guide rail is fixedly mounted; The cylinder body is fixed to the top side of the base by a mounting bracket; A rectangular slider is slidably connected to the guide rail via a sliding block; A circular limiting plate is fixedly installed on the piston rod of the cylinder body. A tension spring is provided between one side of the circular limiting plate and one side of the mounting support. A guide rod is fixedly installed on the bottom side of the circular limiting plate. A limiting groove is formed at the top of the rectangular slider, and the guide rod is slidably disposed within the limiting groove; A limiting component is slidably mounted on the guide rail to limit the travel distance of the rectangular slider; The cylinder body drives the guide rod to move, and the guide rod, in conjunction with the limiting groove, pushes the rectangular slider to slide along the guide rail, thereby achieving high-precision positioning.

[0008] In one possible design, the limiting component includes a U-shaped limiting plate that is slidably fitted onto the outer wall of the guide rail.

[0009] In one possible design, L-shaped connecting blocks are fixedly connected to both sides of the U-shaped limiting plate, and pins are fixedly installed on the L-shaped connecting blocks.

[0010] In one possible design, the top of the base has two notches, and pressure plates are slidably connected within the notches, with a compression spring I disposed between the two pressure plates.

[0011] In one possible design, a strip-shaped limiting plate is fixedly installed on one side of the pressure plate, and the strip-shaped limiting plate has multiple pin holes that are adapted to the pin.

[0012] In one possible design, a fixing sleeve is fixedly installed on one side of the mounting support, and a piston block is slidably connected inside the fixing sleeve. The piston block is connected to a cylindrical cavity opened at the end of the rectangular slider via a connecting rod.

[0013] In one possible design, a compression spring II is provided between the fixed sleeve and the inner wall of the cylindrical cavity.

[0014] In one possible design, the mounting bracket is detachably connected to the base by fastening screws.

[0015] In this application, during use, by starting the cylinder body, the piston rod of the cylinder body drives the circular limit plate to move laterally, the circular limit plate drives the guide rod to move laterally and stretches the tension spring. At this time, the rectangular slider moves laterally under the elastic force of the compression spring II, until the inner wall of one side of the limit groove abuts against the guide rod. The cooperation between the sliding block and the guide rail reduces the moving resistance of the rectangular slider. Furthermore, during use, the threshold of the rectangular slider movement can be controlled by adjusting the position of the U-shaped limiting plate. Specifically, press the two pressure plates, bringing them closer together and squeezing the compression spring I. The pressure plates then move the two strip-shaped limiting plates closer together. At this point, the pin hole is no longer engaged with the pin, thus releasing the braking state of the U-shaped limiting plate. After adjusting the position of the U-shaped limiting plate, release the pressure plates, allowing the pin to engage with the pin hole again, ensuring the stability of the U-shaped limiting plate's position and making it convenient to use.

[0016] Beneficial effects: By activating the cylinder body, the piston rod drives the circular limit plate to move laterally, which in turn drives the guide rod to move laterally and stretches the tension spring. The rectangular slider moves under the elastic force of the compression spring II until the inner wall of one side of the limit groove abuts against the guide rod. This structural design can precisely control the movement position of the rectangular slider, achieve high-precision positioning, and meet the needs of working scenarios with high positioning accuracy requirements.

[0017] The coordinated design of the sliding block and guide rail reduces the resistance of the rectangular slider during movement, ensuring smooth movement of the rectangular slider, improving the overall working efficiency and stability of the cylinder, and reducing energy loss and mechanical wear caused by high movement resistance.

[0018] The threshold for the rectangular slider's movement can be controlled by adjusting the position of the U-shaped limiting plate. Pressing the pressure plate brings the strip-shaped limiting plates closer together, releasing the engagement between the pin and the pin hole, thus releasing the braking state of the U-shaped limiting plate. After adjusting the position, releasing the pressure plate allows the pin to engage with the pin hole again, ensuring the U-shaped limiting plate remains in a stable position. This adjustable design allows the cylinder to adapt to different working requirements and conditions, improving its versatility and flexibility.

[0019] The mounting bracket is detachably connected to the base via two fastening screws. This detachable mounting method facilitates the installation, disassembly, and maintenance of the cylinder. When the cylinder malfunctions or needs to replace parts, it can be operated quickly, reducing maintenance and time costs. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a high-precision positioning cylinder proposed in this utility model; Figure 2 This is an exploded view of the base and guide rail in a high-precision positioning cylinder proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of the cylinder body and mounting support in a high-precision positioning cylinder proposed in this utility model. Figure 4 This is an exploded view of the rectangular slider and fixed sleeve in a high-precision positioning cylinder proposed in this utility model.

[0021] In the diagram: 1. Base; 2. U-shaped limiting plate; 3. Guide rail; 4. Rectangular slider; 5. Cylinder body; 6. Strip-shaped limiting plate; 7. L-shaped connecting block; 8. Pin; 9. Pressure plate; 10. Compression spring I; 11. Notch; 12. Pin hole; 13. Circular limiting plate; 14. Mounting support; 15. Fastening screw; 16. Tension spring; 17. Guide rod; 18. Sliding block; 19. Fixing sleeve; 20. Piston block; 21. Limiting groove; 22. Cylindrical cavity; 23. Compression spring II; 24. Connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In one embodiment: Refer to Figure 1-4 In the specific implementation of this cylinder, the components are first assembled. The base 1 is placed in a suitable working position and fixed stably. The mounting bracket 14 is placed on one side of the top of the base 1, and two fastening screws 15 are used to firmly connect the mounting bracket 14 to the base 1 to ensure a stable and reliable connection and prevent loosening during subsequent use.

[0024] The cylinder body 5 is fixedly installed inside the mounting bracket 14, so that the piston 20 rod of the cylinder body 5 passes through to one side of the mounting bracket 14. A circular limiting plate 13 is fixedly installed on the piston 20 rod, and then the guide rod 17 is fixedly installed on the bottom side of the circular limiting plate 13.

[0025] A fixing sleeve 19 is fixedly installed on one side of the mounting bracket 14. The piston 20 is slidably connected inside the fixing sleeve 19, and a connecting rod 24 is fixedly connected to one end of the piston 20. The guide rail 3 is fixedly installed on the top of the base 1, and the sliding block 18 is slidably connected to the top of the guide rail 3. A rectangular slider 4 is fixedly installed on the top of the sliding block 18. A cylindrical cavity 22 is opened at one end of the rectangular slider 4. One end of the connecting rod 24 is fixedly connected to the inner wall of one side of the cylindrical cavity 22. A compression spring II 23 is set between one end of the fixing sleeve 19 and the inner wall of one side of the cylindrical cavity 22, ensuring that the compression spring II 23 is accurately positioned and can perform its elastic function normally. A limiting groove 21 is opened at the top of the rectangular slider 4, and the guide rod 17 is slidably connected inside the limiting groove 21, ensuring that the guide rod 17 can slide smoothly within the limiting groove 21.

[0026] Next, install the limiting assembly used to limit the movement of the rectangular slider 4. Slide the U-shaped limiting plate 2 onto the outer wall of the guide rail 3. Two symmetrically arranged notches 11 are made at the top of the base 1. The pressure plate 9 is slidably connected inside the notches 11. A compression spring I 10 is placed between the two pressure plates 9, ensuring that the compression spring I 10 is in its natural state, guaranteeing that the two pressure plates 9 maintain a certain distance without external force. A strip-shaped limiting plate 6 is fixedly installed on one side of the pressure plate 9. Multiple pin holes 12 are evenly distributed inside the strip-shaped limiting plate 6 to facilitate engagement when adjusting the position of the U-shaped limiting plate 2.

[0027] L-shaped connecting blocks 7 are fixedly connected to both sides of the U-shaped limiting plate 2. A pin 8 is fixedly installed on the inner wall of one side of the L-shaped connecting block 7. The position of the U-shaped limiting plate 2 is adjusted so that the pin 8 engages with the pin hole 12 on the strip limiting plate 6, ensuring that the position of the U-shaped limiting plate 2 on the guide rail 3 is fixed and can normally limit the movement of the rectangular slider 4.

[0028] During operation, the cylinder body 5 is activated, and the piston 20 rod of the cylinder body 5 begins to move laterally. Since the piston 20 rod is fixedly connected to the circular limiting plate 13, it will drive the circular limiting plate 13 to move laterally. When the circular limiting plate 13 moves, it will drive the guide rod 17 fixed on one side of its bottom to move laterally. During the movement of the guide rod 17, the tension spring 16 will be stretched (mentioned in the working principle here, although the connection relationship of the tension spring 16 is not described in detail in the claims, it is retained according to the overall logic). At the same time, the rectangular slider 4 will also move laterally under the elastic force of the compression spring II 23. When the rectangular slider 4 moves to the inner wall of one side of the limiting groove 21 and abuts against the guide rod 17, the rectangular slider 4 stops moving. Through this precise mechanical cooperation, high-precision positioning is achieved, which meets the strict requirements for positional accuracy in fields such as precision machining and electronic assembly, avoids product quality problems caused by positional deviation, and reduces production costs and resource waste.

[0029] When the threshold of the rectangular slider 4 needs to be adjusted according to different work requirements, press the two pressure plates 9. Under pressure, the two pressure plates 9 move closer together, simultaneously compressing the compression spring I10, causing the compression spring I10 to contract. When the pressure plates 9 move, they will cause the two strip-shaped limiting plates 6 to move closer together. At this time, the pin holes 12 on the strip-shaped limiting plates 6 are no longer engaged with the pins 8, thus releasing the braking state of the U-shaped limiting plate 2. Then, the position of the U-shaped limiting plate 2 on the guide rail 3 can be manually moved. After adjusting to the appropriate position, release the pressure plates 9. The compression springs I10 return to their original state, pushing the two pressure plates 9 away from each other, causing the strip-shaped limiting plates 6 to return to their original position. This allows the pins 8 to engage with the new pin holes 12 on the strip-shaped limiting plates 6 again, ensuring the stability of the U-shaped limiting plate 2 in the new position. In this way, the threshold of the rectangular slider 4 can be flexibly adjusted, enabling the cylinder to adapt to the needs of production lines with various working conditions or product specification changes, improving the automation level and production efficiency of the production line.

[0030] This application can be used in the field of cylinders, or in other fields applicable to this application.

[0031] In another embodiment: Reference Figure 1-4 A high-precision positioning cylinder is described, which is used in the field of cylinders. The cooperative design of the sliding block 18 and the guide rail 3 allows the rectangular slider 4 to slide smoothly along the guide rail 3 during movement, greatly reducing the moving resistance of the rectangular slider 4. This not only reduces the energy consumption of the cylinder and improves energy utilization efficiency, but also reduces wear between components, extends the service life of the cylinder, and reduces the maintenance and replacement costs of the equipment.

[0032] However, as is well known to those skilled in the art, the working principle and wiring method of the cylinder block 5 are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision positioning cylinder, characterized by, include: Base (1), and a guide rail (3) is fixedly installed on the top of the base (1); The cylinder body (5) is fixed to the top side of the base (1) by means of the mounting bracket (14); The rectangular slider (4) is slidably connected to the guide rail (3) via the sliding block (18); The piston rod of the cylinder body (5) is fixedly installed with a circular limiting plate (13). A tension spring (16) is provided between one side of the circular limiting plate (13) and one side of the mounting support (14). A guide rod (17) is fixedly installed on one side of the bottom of the circular limiting plate (13). A limiting groove (21) is provided on the top of the rectangular slider (4), and the guide rod (17) is slidably disposed in the limiting groove (21); A limiting component is slidably mounted on the guide rail (3) to limit the travel distance of the rectangular slider (4); The cylinder body (5) drives the guide rod (17) to move, and through the cooperation of the guide rod (17) and the limiting groove (21), pushes the rectangular slider (4) to slide along the guide rail (3) to achieve high-precision positioning.

2. The high precision positioning cylinder of claim 1, wherein, The limiting component includes a U-shaped limiting plate (2), which is slidably sleeved on the outer wall of the guide rail (3).

3. The high precision positioning cylinder of claim 2, wherein, Both sides of the U-shaped limiting plate (2) are fixedly connected to L-shaped connecting blocks (7), and pins (8) are fixedly installed on the L-shaped connecting blocks (7).

4. The high precision positioning cylinder of claim 3, wherein, The base (1) has two notches (11) at its top, and a pressure plate (9) is slidably connected in the notch (11). A compression spring I (10) is provided between the two pressure plates (9).

5. The high precision positioning cylinder of claim 4, wherein, A strip-shaped limiting plate (6) is fixedly installed on one side of the pressure plate (9), and the strip-shaped limiting plate (6) has a plurality of pin holes (12) that are compatible with the pin (8).

6. The high precision positioning cylinder of claim 1, wherein, A fixing sleeve (19) is fixedly installed on one side of the mounting support (14). A piston block (20) is slidably connected inside the fixing sleeve (19). The piston block (20) is connected to the cylindrical cavity (22) opened at the end of the rectangular slider (4) through the connecting rod (24).

7. The high precision positioning cylinder of claim 6, wherein, A compression spring II (23) is provided between the fixed sleeve (19) and the inner wall of the cylindrical cavity (22).

8. The high precision positioning cylinder of claim 1, wherein, The mounting bracket (14) is detachably connected to the base (1) by fastening screws (15).

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