A pneumatic gripper mechanism

Abstract

This utility model discloses a pneumatic gripper mechanism, including a fixed frame (1), a drive device (2) capable of linear telescopic movement, and a movable pressure rod (5). The drive device (2) is mounted on the fixed frame (1), and the movable pressure rod (5) is hinged to the fixed frame (1) via a first support pin (6) and connected to the telescopic rod of the drive device (2) via a second support pin (4). The movable pressure rod (5) rotates around the first support pin (6) as a pivot point and achieves opening and closing actions under the telescopic drive of the drive device (2). The overall structure is simple, and the movable pressure rod (5) achieves clamping at a large angle (around 90°) through the telescopic rod of the drive device (2), greatly improving the fault tolerance rate, reducing the failure rate in automated operation, and facilitating installation and maintenance.

Description

Technical Field

[0001] This utility model belongs to the technical field of gripper mechanisms and relates to a pneumatic gripper mechanism. Background Technology

[0002] Pneumatic grippers play a crucial role in automated production processes as commonly used gripping and manipulating components. Currently, most pneumatic grippers on the market are standard parts with universal designs, but this standardization also brings some limitations in practical applications.

[0003] On the one hand, the opening size of a standard pneumatic gripper is relatively small, which makes it less forgiving when gripping larger objects. Even a slight deviation in the position or posture of the object can lead to gripping failure, affecting the continuity and stability of the production process.

[0004] On the other hand, the installation of pneumatic grippers requires high precision, necessitating accurate positioning and adjustment to ensure their proper functioning. However, in some special applications, such as fabric traction mechanisms, the working environment is complex, demanding extremely high adaptability and flexibility from the equipment. Standard pneumatic grippers are insufficient to meet the requirements for large openings, high fault tolerance, and flexible installation in these specific scenarios. Utility Model Content

[0005] The purpose of this utility model is to provide a pneumatic gripper mechanism, which has the characteristics of simple structure, relatively large opening of the gripper, high fault tolerance, and relatively low precision requirements for installation conditions, and can meet the needs of most occasions and reduce the failure rate.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A pneumatic gripper mechanism includes a fixed frame, a drive device capable of linear telescopic movement, and a movable pressure rod. The drive device is mounted on the fixed frame, and the movable pressure rod is hinged to the fixed frame via a first support pin and connected to the telescopic rod of the drive device via a second support pin. The movable pressure rod rotates around the first support pin as a pivot point and achieves opening and closing actions under the telescopic drive of the drive device.

[0008] As a further improvement of one embodiment of the present invention, the fixed frame is provided with a wear-resistant pad, which is fixed to the workpiece contact surface of the fixed frame to buffer the clamping impact.

[0009] As a further improvement of one embodiment of the present invention, the driving device is a cylinder, which is fixed to the side of the fixing frame by bolts.

[0010] Furthermore, the base of the cylinder is hinged to the fixed frame via a third support pin, and the cylinder body is bolted to the fixed frame.

[0011] As a further improvement of one embodiment of the present invention, the clamping end of the movable pressure rod is provided with anti-slip texture or soft rubber pad.

[0012] As a further improvement of one embodiment of the present invention, the axes of the first support pin and the second support pin are arranged parallel to each other.

[0013] As a further improvement of one embodiment of the present invention, the opening and closing angle of the movable pressure rod is 80°-100°, preferably 90°.

[0014] As a further improvement of one embodiment of the present invention, one end of the movable pressure rod has a first shoulder for mounting a first support pin and a second shoulder for mounting a second support pin, wherein the central axis of the first shoulder and the central axis of the second shoulder are perpendicular to each other.

[0015] The above technical solution has the following advantages: the overall structure is simple, the movable pressure rod can achieve a large angle (about 90°) clamping by extending and retracting through the drive device, which greatly improves the fault tolerance rate, reduces the failure rate in automated operation, and is convenient for installation and maintenance. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the state structure provided by this utility model.

[0019] Figure 2 A schematic diagram of the movable pressure bar provided by this utility model.

[0020] In the picture:

[0021] 1. Fixture;

[0022] 2. Drive unit;

[0023] 3. Wear-resistant pads;

[0024] 4. Second support pin;

[0025] 5. Movable pressure bar; 51. First shoulder; 52. Second shoulder;

[0026] 6. First support pin;

[0027] 7. Third support pin. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0031] See Figures 1-2 As shown, a pneumatic gripper mechanism includes a fixed frame 1, a drive device 2 capable of linear telescopic movement, and a movable pressure rod 5. The drive device 2 is stably mounted on the fixed frame 1, providing the power source for the entire mechanism. The movable pressure rod 5 is hinged to the fixed frame 1 via a first support pin 6, allowing the movable pressure rod 5 to rotate flexibly around the first support pin 6; simultaneously, the movable pressure rod 5 is also connected to the telescopic rod of the drive device 2 via a second support pin 4.

[0032] In this embodiment, the driving device 2 is a cylinder. During operation, the piston rod of the cylinder extends and retracts, transmitting power to the movable pressure rod 5 via the second support pin 4. The movable pressure rod 5 uses the first support pin 6 as its rotation fulcrum and, driven by the piston rod, performs opening and closing actions, achieving a large opening and closing angle of approximately 90°.

[0033] Compared with conventional pneumatic gripper mechanisms, this invention expands the gripper opening, greatly improving the fault tolerance rate. Even if the position of the object being gripped is slightly off, it can still be gripped smoothly. It also reduces the installation accuracy requirements, making it suitable for more complex scenarios. Furthermore, its simple and reasonable structure reduces the probability of failure and makes subsequent maintenance easier, demonstrating significant advantages and broad application prospects.

[0034] In this embodiment, the cylinder is securely mounted to the side of the mounting bracket 1 using a specific method. Specifically, the cylinder base is hinged to the mounting bracket 1 via a third support pin 7. This hinged structure allows for slight rotation of the cylinder within a certain range, enhancing installation flexibility. Simultaneously, the cylinder body is tightly secured to the mounting bracket 1 with bolts, ensuring the stability of the cylinder during operation. In equivalent embodiments, the third support pin 7 can be replaced with other connecting parts possessing hinge functionality, and the bolts can be replaced with screws or other fasteners of the same specifications, achieving the same reliable connection between the cylinder and the mounting bracket 1.

[0035] In this embodiment, a wear-resistant pad 3 is specially provided on the fixing frame 1. This wear-resistant pad 3 is tightly fixed to the contact surface between the fixing frame 1 and the workpiece. Its main function is to buffer the impact force generated during clamping, effectively protecting the fixing frame 1 and the workpiece, and extending the service life of the equipment. In equivalent embodiments, the wear-resistant pad 3 can also be replaced by wear-resistant rubber, wear-resistant plastic, or similar wear-resistant materials. Additionally, the clamping end of the movable pressure rod 5 is provided with anti-slip textures or a soft rubber pad. The anti-slip textures increase friction, while the soft rubber pad prevents damage to the workpiece. Choosing either one will improve the clamping effect, and the soft rubber pad can also be replaced by a silicone pad or similar material.

[0036] In this embodiment, one end of the movable pressure rod 5 is carefully provided with a first shoulder 51 for mounting the first support pin 6 and a second shoulder 52 for mounting the second support pin 4. The central axis M1 of the first shoulder 51 and the central axis M2 of the second shoulder 52 are perpendicular to each other. This perpendicular arrangement allows the movable pressure rod 5 to rotate more stably when under force, ensuring the mechanical balance of the mechanical structure.

[0037] Meanwhile, the axes of the first support pin 6 and the second support pin 4 are arranged in parallel, which further optimizes the transmission structure and allows the extension and retraction of the cylinder piston rod to be more smoothly converted into the opening and closing action of the movable pressure rod 5.

[0038] Specifically, the opening and closing angle of the movable pressure rod 5 is between 80° and 100°. After extensive practice and optimization, the optimal angle is set at 90°. This angle can meet the requirements for the size of the gripper opening in most working conditions, and also ensure that the movable pressure rod 5 operates smoothly and reliably during the opening and closing process.

[0039] In actual use, when the piston rod of the cylinder retracts, it applies a pulling force to the movable pressure rod 5 through the second support pin 4. Since the movable pressure rod 5 is hinged to the fixed frame 1 through the first support pin 6, under the action of this pulling force, the movable pressure rod 5 will rotate around the first support pin 6, thereby achieving a closing action to clamp the workpiece.

[0040] When the piston rod of the cylinder extends, it generates a thrust on the movable pressure rod 5 through the second support pin 4, causing the movable pressure rod 5 to rotate in the opposite direction around the first support pin 6, thereby achieving the opening action and leaving sufficient space for placing the workpiece. Through this extension and retraction movement of the cylinder piston rod, the pneumatic gripper mechanism can easily achieve a large opening clamping function.

[0041] From an equivalent implementation perspective, other drive devices capable of linear telescopic motion, such as electric push rods, can be used to replace the cylinder. When this mechanism is used in applications with high tolerance for error and low installation precision requirements, it eliminates the need for overly precise adjustments to the installation position, significantly reducing installation difficulty and time costs, thereby lowering the overall cost. Simultaneously, its simple structure and reliable operation effectively reduce the failure rate during automated operation and improve production efficiency.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pneumatic gripper mechanism, characterized in that, It includes a fixed frame (1), a drive device (2) capable of linear telescopic movement, and a movable pressure rod (5); the drive device (2) is mounted on the fixed frame (1), and the movable pressure rod (5) is hinged to the fixed frame (1) through a first support pin (6) and connected to the telescopic rod of the drive device (2) through a second support pin (4); the movable pressure rod (5) uses the first support pin (6) as a fulcrum for rotation and realizes the opening and closing action under the telescopic drive of the drive device (2).

2. The pneumatic gripper mechanism according to claim 1, characterized in that, The fixed frame (1) is provided with a wear-resistant pad (3), which is fixed to the workpiece contact surface of the fixed frame (1) to buffer the impact of clamping.

3. The pneumatic gripper mechanism according to claim 1, characterized in that, The driving device (2) is a cylinder, which is fixed to the side of the fixing frame (1) by bolts.

4. The pneumatic gripper mechanism according to claim 1, characterized in that, The clamping end of the movable pressure rod (5) is provided with anti-slip texture or soft rubber pad.

5. The pneumatic gripper mechanism according to claim 1, characterized in that, The first support pin (6) and the second support pin (4) are arranged parallel to each other.

6. The pneumatic gripper mechanism according to claim 1, characterized in that, The opening and closing angle of the movable pressure rod (5) is 80°-100°.

7. The pneumatic gripper mechanism according to claim 3, characterized in that, The base of the cylinder is hinged to the fixed frame (1) by a third support pin (7), and the cylinder body of the cylinder is locked to the fixed frame (1) by bolts.

8. The pneumatic gripper mechanism according to claim 1, characterized in that, One end of the movable pressure rod (5) has a first shoulder for mounting the first support pin (6) and a second shoulder for mounting the second support pin (4), wherein the central axis of the first shoulder and the central axis of the second shoulder are perpendicular to each other.

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