Pneumatic clamping device

Abstract

The utility model discloses a pneumatic clamping device, and relates to the technical field of mechanical clamps. In order to solve the problem that an existing pneumatic clamp is complex in structure, the technical scheme is that the pneumatic clamp comprises a mechanical connecting structure and a pneumatic power structure arranged at the bottom of the mechanical connecting structure, the mechanical connecting structure comprises a flange pin, a core block connected to the bottom of the flange pin and a guide strip, and the guide strip is connected to a movable plate. The movable plate is arranged in a groove between the main block and the pressing block; the pneumatic power structure comprises an air cylinder and a U-shaped block, a piston rod of the air cylinder is connected with the U-shaped block, and the U-shaped block is connected with the movable plate. The utility model has the beneficial effects of improving the production efficiency, ensuring the processing quality and precision, reducing the labor intensity of workers, improving the reliability of equipment, having strong adaptability, being easy to maintain, improving the safety of the working environment and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic clamps, in particular to a pneumatic clamping device. Background Art

[0002] In modern industrial production, clamping devices are crucial tooling equipment, and their performance directly impacts production efficiency, processing quality, and safety. Traditional manual and mechanical clamps suffer from slow clamping speeds, laborious operation, and insufficient precision, making them unable to meet the demands of modern, efficient, and automated production.

[0003] To address these issues, the industry has begun exploring the use of pneumatic clamping devices. However, existing pneumatic clamping devices still have some limitations, such as unstable clamping force, poor adaptability, and difficult maintenance. These shortcomings restrict their wider application.

[0004] Therefore, it is necessary to develop a new type of pneumatic clamping device to improve production efficiency, ensure processing quality and precision, reduce worker labor intensity, and provide features such as easy maintenance and servicing, strong adaptability, and a safe working environment. This patent is proposed in this context, aiming to provide a pneumatic clamping device with excellent performance, safety and reliability to meet the needs of modern industrial production. Utility Model Content

[0005] The purpose of the utility model is to provide a pneumatic clamping device to solve the problems of the existing pneumatic clamps, such as complex structure, unstable clamping force, poor adaptability and difficult maintenance.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A pneumatic clamping device comprises: a mechanical connection structure and a pneumatic power structure arranged at the bottom of the mechanical connection structure, the mechanical connection structure comprising a flange pin, a core block connected to the bottom of the flange pin, and a guide bar, the guide bar being connected to a movable plate, and the movable plate being arranged in a groove between a main block and a pressure block;

[0008] The pneumatic power structure includes a cylinder and a U-shaped block. The piston rod of the cylinder is connected to the U-shaped block, and the U-shaped block is connected to the moving plate.

[0009] Preferably, a rotating shaft is provided between the U-shaped block and the moving plate, and a bearing is provided on the rotating shaft.

[0010] Preferably, a gasket is connected to the core block.

[0011] Preferably, the main block and the pressing block are fixedly connected by screws.

[0012] Preferably, the cylinder is mounted on the main block and the pressure block by screws.

[0013] Preferably, the guide bar and the movable plate are connected in a sliding manner.

[0014] Preferably, reinforcing ribs are provided between the main block and the pressing block.

[0015] Preferably, the cylinder is a double-acting cylinder.

[0016] Preferably, a safety valve is further included to reduce the pressure in the cylinder.

[0017] Preferably, a position sensor is further included to monitor the position of the moving plate.

[0018] The utility model has the following beneficial effects:

[0019] This pneumatic clamping device, powered by air pressure, achieves fast and stable clamping and releasing. Compared to traditional manual or mechanical clamps, it significantly reduces clamping and workpiece replacement time, thereby improving production efficiency. In automated production lines and robotic assembly processes, pneumatic clamping devices enable fast and accurate assembly, further enhancing production efficiency.

[0020] Pneumatic clamping devices offer high clamping force and reliable locking, ensuring workpiece stability and safety during machining and assembly. They also quickly clamp and release workpieces, reducing machining errors caused by fixture loosening or displacement, further improving machining accuracy.

[0021] This pneumatic clamping device can adapt to the clamping needs of workpieces of different shapes, sizes, and materials. By adjusting the size and shape of the clamping device, as well as adjusting the working pressure and stroke of the cylinder, it can flexibly meet the clamping needs of various workpieces.

[0022] The components of a pneumatic clamping device are simply connected and easy to disassemble and replace. If a component malfunctions or becomes damaged, it can be easily repaired or replaced, reducing maintenance costs and time. Pneumatic clamping devices do not generate heat or current during operation, thus ensuring high safety. Furthermore, the device is equipped with auxiliary components such as a safety valve to reduce cylinder pressure, preventing damage or accidents caused by excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of the pneumatic clamping device of the utility model;

[0024] Figure 2 This is an exploded view of the pneumatic clamping device of the utility model;

[0025] Figures 1 to 2The reference numerals shown in the figure represent: moving plate 2, main block 3, pressure block 4, rotating shaft 5, core block 6, guide bar 7, gasket 8, U-shaped block 9, cylinder 10. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] Please refer to Figure 1-2 A pneumatic clamping device is designed to provide efficient, stable, and easy-to-maintain clamping, making it particularly suitable for applications such as welding tooling that require frequent clamping and releasing of workpieces. The following is a detailed description of the specific implementation of this pneumatic clamping device.

[0028] First, the pneumatic clamping device consists of two main parts: a mechanical connection structure and a pneumatic power structure. The mechanical connection structure serves as the main framework of the device, connecting and supporting the various components to ensure stable operation; the pneumatic power structure provides the necessary power to drive the clamping mechanism to achieve clamping and release functions.

[0029] In the mechanical connection structure, flange pin 1, a key connecting component, is mounted on core block 6 using fasteners such as screws. The design of core block 6 takes into account compatibility with the rest of the mechanical connection structure, ensuring its secure installation between main block 3 and pressure block 4. To further enhance the stability and durability of the connection, a gasket 8 is attached to the top of core block 6. Made of a wear-resistant and corrosion-resistant material, this gasket effectively reduces friction and wear between core block 6 and flange pin 1.

[0030] Core block 6 and guide bar 7, attached to the bottom of flange pin 1, together form the core of the mechanical connection structure. Guide bar 7 utilizes a sliding connection with movable plate 2. This design allows movable plate 2 to slide smoothly within the groove between main block 3 and pressure block 4 when subjected to external forces. The sliding fit of guide bar 7 not only ensures a stable motion trajectory for movable plate 2 but also improves the efficiency and precision of the entire clamping device.

[0031] The movable plate 2 is another crucial component of the mechanical connection structure. It sits within the groove between the main block 3 and the pressure block 4 and is connected to the pneumatic power structure via a U-shaped block 9. The main block 3 and the pressure block 4 are fixed together using fasteners such as screws, forming a sturdy frame that provides stable support for the movement of the movable plate 2. Furthermore, to strengthen the connection between the main block 3 and the pressure block 4, reinforcing ribs are installed between them. These ribs disperse stress and prevent deformation or damage caused by prolonged operation.

[0032] In the pneumatic power structure, cylinder 10, the core power component, is directly mounted on main block 3 and pressure block 4 via screws. The selection of cylinder 10 took into account multiple factors, including the operating environment, required clamping force, and service life. Ultimately, a double-acting cylinder was chosen. This type of cylinder offers advantages such as simple structure, reliable operation, and long service life, providing stable clamping force in various operating environments.

[0033] The piston rod of the cylinder 10 is connected to the U-shaped block 9, which is in turn connected to the movable plate 2 via the rotating shaft 5. The rotating shaft 5 is equipped with bearings to reduce friction and wear between the U-shaped block 9 and the movable plate 2, thereby improving the smoothness and precision of the movement. When the cylinder 10 receives compressed air, its piston rod moves downward, driving the movable plate 2 through the U-shaped block 9 and the rotating shaft 5 to first translate and then move downward within the cavity of the main block 3, thereby clamping the workpiece on the flange pin 1. Conversely, when the air supply port of the cylinder 10 changes, the piston rod moves upward, also driving the movable plate 2 through the U-shaped block 9 and the rotating shaft 5 to move in the opposite direction, releasing the workpiece.

[0034] To ensure the safety and reliability of the pneumatic clamping device during operation, auxiliary components such as a safety valve and a position sensor are also included. The safety valve reduces the pressure in the cylinder 10 to prevent damage or accidents caused by excessive pressure. The position sensor monitors the position of the movable plate 2, ensuring that it accurately reaches the desired position when clamping and releasing the workpiece. The addition of these auxiliary components not only improves the operating efficiency and precision of the pneumatic clamping device, but also enhances its safety and reliability.

[0035] During implementation, the installation and commissioning of the pneumatic clamping device are equally important. First, the main block 3 and the pressure block 4 must be securely connected using screws and other fasteners to form a sturdy frame. Next, the cylinder 10 must be installed on the main block 3 and the pressure block 4, ensuring that they are positioned accurately and securely. Next, the U-shaped block 9 is connected to the piston rod of the cylinder 10 and to the movable plate 2 via the rotating shaft 5. During installation, care must be taken to maintain cleanliness and lubrication between the components to reduce friction and wear.

[0036] After installation, commissioning is required. First, the operating pressure and stroke of cylinder 10 must be adjusted to ensure they meet the requirements for clamping the workpiece. Next, a position sensor monitors the position of movable plate 2 to ensure it accurately reaches the desired position. During commissioning, it's also necessary to check the connections between components and ensure smooth movement to ensure the entire pneumatic clamping device operates stably and reliably.

[0037] In practical applications, this pneumatic clamping device demonstrates significant advantages. First, because the cylinder directly tightens the workpiece, it provides greater clamping force, meeting applications requiring high clamping force. Second, the streamlined components free up more space, making the entire device more compact and easier to install and maintain. Furthermore, the movable plate simultaneously clamps the workpiece on both sides, ensuring that the part fits snugly onto the positioning surface, improving machining accuracy and product quality.

[0038] Notably, this pneumatic clamping device offers high flexibility and scalability. Different cylinder models can be selected as power components based on specific needs in different operating environments, resulting in longer service life and better performance. Furthermore, if a component becomes damaged or requires replacement, it can be easily replaced and maintained, reducing operational costs.

[0039] Furthermore, the pneumatic clamping device can be customized and modified as needed. For example, the shape and size of the movable plate 2 can be adjusted to the workpiece's shape and size to ensure a close fit and sufficient clamping force. Furthermore, components of different materials and structures can be selected based on the work environment's requirements to enhance the device's durability and adaptability.

[0040] This pneumatic clamping device also excels in maintenance. Simple connections and easy disassembly and replacement of components make maintenance extremely convenient. Furthermore, the use of wear- and corrosion-resistant materials in key components significantly extends the life of the entire device. Regular inspection and maintenance of key components is sufficient to ensure stable and reliable operation over extended periods of use.

[0041] In summary, this pneumatic clamping device offers advantages such as simple structure, reliable operation, high clamping force, streamlined parts count, and easy installation and maintenance. It has broad application prospects in applications such as welding tooling where frequent clamping and releasing of workpieces is required. Through appropriate selection and customization, this pneumatic clamping device can meet the needs of diverse industries and application scenarios, providing strong support for industrial automation and intelligent manufacturing.

[0042] Working Principle: Compressed air is supplied to cylinder 10 through the air inlet. The piston rod of cylinder 10 moves downward under the action of the compressed air. The piston rod, through the U-shaped block 9, drives the movable plate 2 to translate first and then move downward within the cavity of the main block 3, thereby clamping the workpiece on flange pin 1. When the air supply port of cylinder 10 is changed, the piston rod of cylinder 10 moves upward under the action of compressed air. The piston rod, through the U-shaped block 9, drives the movable plate 2 to translate first and then move upward within the cavity of the main block 3, thereby retracting the movable plate 2 into flange pin 1 and allowing the workpiece to be removed. When the air supply port of cylinder 10 is changed, the piston rod of cylinder 10 moves upward under the action of compressed air. The piston rod, through the U-shaped block 9, drives the movable plate 2 to translate first and then move upward within the cavity of the main block 3, thereby allowing the movable plate 2 to be retracted into flange pin 1 and the workpiece to be removed. When the air supply port is depleted, cylinder 10 serves as a manual power source, enabling manual adjustment. In this case, in the absence of external forces other than gravity, the movable plate 2, due to its structure, can only move up and down, not translate. This prevents the workpiece from being directly removed from flange pin 1, ensuring production safety.

[0043] In summary, this pneumatic clamping device is an efficient, stable, and easy-to-maintain clamping device with broad application prospects in industrial automation and intelligent manufacturing. Through rational selection and customization, as well as strict installation, commissioning, and maintenance procedures, it is possible to ensure that this pneumatic clamping device maintains stable performance and reliable operation over the long term.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic clamping device, characterized in that: The invention comprises: a mechanical connection structure and a pneumatic power structure arranged at the bottom of the mechanical connection structure, wherein the mechanical connection structure comprises a flange pin (1), a core block (6) connected to the bottom of the flange pin (1), and a guide bar (7), wherein the guide bar (7) is connected to a movable plate (2), and the movable plate (2) is arranged in a groove between a main block (3) and a pressure block (4); The pneumatic power structure comprises a cylinder (10) and a U-shaped block (9), wherein the piston rod of the cylinder (10) is connected to the U-shaped block (9), and the U-shaped block (9) is connected to the moving plate (2).

2. The pneumatic clamping device according to claim 1, characterized in that: A rotating shaft (5) is provided between the U-shaped block (9) and the movable plate (2), and a bearing is provided on the rotating shaft.

3. The pneumatic clamping device according to claim 1, characterized in that: A gasket (8) is connected to the core block (6).

4. The pneumatic clamping device according to claim 1, characterized in that: The main block (3) and the pressing block (4) are fixedly connected by screws.

5. The pneumatic clamping device according to claim 1, characterized in that: The cylinder (10) is mounted on the main block (3) and the pressing block (4) by means of screws.

6. The pneumatic clamping device according to claim 1, characterized in that: The guide bar (7) is slidably connected to the movable plate (2).

7. The pneumatic clamping device according to claim 1, characterized in that: Reinforcing ribs are provided between the main block (3) and the pressing block (4).

8. The pneumatic clamping device according to claim 1, characterized in that: The cylinder (10) is a double-acting cylinder.

9. The pneumatic clamping device according to claim 1, characterized in that: A safety valve is also included for reducing the pressure of the cylinder (10).

10. The pneumatic clamping device according to claim 1, characterized in that: A position sensor is also included for monitoring the position of the moving plate (2).

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