Material taking pneumatic claw

Abstract

The utility model relates to the technical field of pneumatic claws, in particular to a material taking pneumatic claw which comprises a valve body and the like. One end of the valve body is in threaded connection with the end cover, the valve element is arranged in the valve body, the spring is movably arranged between the valve element and the valve body, the two ends of the spring make contact with the valve element and the valve body respectively, one side of the valve body is rotationally connected with the claw through the positioning pin, and the claw is arranged on the other side of the valve body. And one end of the claw extends into the valve body and is in contact with the valve core. The connection stability of the valve body and the end cover is effectively enhanced through the design that the valve body and the end cover are in threaded connection, meanwhile, the end cover is prevented from being directly stressed through the design that the end cover and the spring are separated, and the stability of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic gripper technology, and in particular to a material handling pneumatic gripper. Background Technology

[0002] A pneumatic gripper is an automated device driven by compressed air used for gripping, handling, and placing objects. It converts the energy of compressed air into mechanical motion through cylinders or similar mechanisms, enabling the clamping and releasing of workpieces. Depending on the application, pneumatic grippers can be designed in various forms, such as parallel opening and closing or finger rotation, to accommodate workpieces of various shapes and sizes.

[0003] Traditional pneumatic gripper devices have a simple structure, which leads to some shortcomings in the design and implementation of the device. For example, most traditional pneumatic grippers are connected to the end cap through the valve body, and the end cap is equipped with a spring connected to the valve core. Moreover, the end cap lacks the necessary stabilizing structure, which makes the end cap easy to detach and the spring to break out during long-term use, thus causing damage to the device.

[0004] Therefore, it is necessary to design a pneumatic gripper for material handling. Utility Model Content

[0005] In order to overcome the shortcomings of traditional pneumatic gripper devices, such as simple structure, easy end cap detachment and spring breakage during long-term use, which can lead to device damage, the technical problem to be solved is to provide a material handling pneumatic gripper.

[0006] The technical solution is: a material handling gripper, comprising a valve body, a valve core, an end cap, a spring, a claw, and a positioning pin. One end of the valve body is threadedly connected to the end cap. The valve core is disposed inside the valve body, and the spring is movably disposed inside the valve core. Both ends of the spring contact the valve core and the valve body, respectively. The claw is rotatably connected to one side of the valve body through the positioning pin. One end of the claw extends into the valve body and contacts the valve core.

[0007] Furthermore, the valve core is provided with multiple protrusions, and one end of the claw extends into the space between two adjacent protrusions.

[0008] Furthermore, the outer diameter of the spring is smaller than the internal diameter of the valve body, and the inner diameter of the spring is larger than the diameter of the valve core end.

[0009] Furthermore, vent holes are provided on both opposite sides of the valve body, with the vent holes of the valve body located near the valve core and away from the spring.

[0010] Furthermore, the claw is designed in an L-shape, and the valve core drives the claw to move by squeezing one end of the claw.

[0011] Furthermore, a headless screw is threaded onto the end cap, one end of which passes through the end cap and contacts the valve core.

[0012] Furthermore, an O-ring is provided on the end of the end cap facing the valve body.

[0013] Furthermore, a sealing ring is provided at the end of the valve core away from the spring.

[0014] Furthermore, the sealing ring is circular and has a certain degree of elasticity; after the device is ventilated, the sealing ring expands under the pressure of the gas.

[0015] Furthermore, a cover plate is connected to the side of the valve body facing away from the claw via a flat-head screw.

[0016] The present invention has the following advantages: 1. The present invention effectively strengthens the stability of the connection between the valve body and the end cover by the threaded connection design. At the same time, the design of separating the end cover from the spring avoids the end cover being directly subjected to force, which further improves the stability of the device.

[0017] 2. This utility model, through the design of a headless screw, allows for precise adjustment of the valve core position, thereby adjusting the opening and closing positions of the claws. This design helps reduce errors during assembly and use, ensuring work quality and accuracy.

[0018] 3. This utility model uses O-rings and sealing rings to prevent air leakage during the ventilation process, effectively improving the sealing performance of the device and ensuring the stability and reliability of the working process. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural cross-sectional view of the valve body, valve core, and claw of this utility model.

[0021] Figure 3 This is an exploded view of the valve body, claw, flat-head screw, and cover plate of this utility model.

[0022] Figure 4 This is an exploded view of the end cap, headless screw, O-ring, and sealing ring of this utility model.

[0023] In the attached diagram, the following are the reference numerals: 1-valve body, 2-valve core, 3-end cap, 4-spring, 5-paw, 6-headless screw, 7-O-ring, 8-sealing ring, 9-locating pin, 10-flat head screw, 11-cover plate. Detailed Implementation

[0024] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0025] Example: A pneumatic gripper, such as Figures 1-4 As shown, the valve body includes a valve body 1, a valve core 2, an end cap 3, a spring 4, a claw 5, and a positioning pin 9. The end cap 3 is threaded to one end of the valve body 1. The valve core 2 is located inside the valve body 1. The spring 4 is movably mounted inside the valve core 2. The two ends of the spring 4 are in contact with the valve core 2 and the valve body 1, respectively. The claw 5 is rotatably connected to one side of the valve body 1 through the positioning pin 9. One end of the claw 5 extends into the interior of the valve body 1 and contacts the valve core 2. Here, the valve core 2 is provided with multiple protrusions. One end of the claw 5 extends between two adjacent protrusions. The outer diameter of the spring 4 is smaller than the internal space diameter of the valve body 1, and the inner diameter of the spring 4 is larger than the diameter of the end of the valve core 2. Vent holes are opened on both opposite sides of the valve body 1. The vent holes of the valve body 1 are closer to the end of the valve core 2 and farther away from the spring 4. The claw 5 is designed with an L-shaped structure. The valve core 2 drives the claw 5 to move by squeezing one end of the claw 5.

[0026] like Figure 4 As shown, a headless screw 6 is threaded onto the end cover 3. One end of the headless screw 6 passes through the end cover 3 and contacts the valve core 2. Here, the design of the headless screw 6 allows the position of the valve core 2 to be adjusted by the length of the screw passing through the end cover 3, thereby adjusting the position of the claw 5. This helps to reduce device errors and ensure work quality.

[0027] like Figure 4 As shown, an O-ring 7 is provided on the end of the end cap 3 facing the valve body 1. The sealing ring 8 is circular and has a certain elasticity. After the device is ventilated, the sealing ring 8 is compressed by the gas and expands. Here, the O-ring 7 can maintain a tight connection with the valve body 1 when the end cap 3 is inserted into the valve body 1, which helps to improve the sealing performance of the device, prevent air leakage during the venting process, and ensure the working quality.

[0028] like Figure 4 As shown, a sealing ring 8 is provided at the end of the valve core 2 away from the spring 4. Here, the sealing ring 8 is designed so that it will expand due to the gas pressure after the device is vented, so that it will keep in contact with the inner wall of the valve body 1, thereby further improving the sealing performance of the device.

[0029] like Figure 3As shown, the valve body 1 is connected to a cover plate 11 on the side facing away from the claw 5 by a flat-head screw 10. Here, the design of the cover plate 11 and the flat-head screw 10 makes it convenient for workers to install the device on the equipment, effectively improving the practicality and flexibility of the device.

[0030] This device is a pneumatic gripper. During assembly, first, spring 4 is placed inside valve body 1, followed by valve core 2. Then, one end of gripper 5 is inserted into valve body 1 and contacts valve core 2. Gripper 5 is then fixed to one side of valve body 1 using positioning pin 9. Next, one end of end cap 3 is inserted into valve body 1 and tightened to fix it to valve body 1, thus completing the installation. When using this device, a gas supply device must be connected to the device's vent. Gas is injected into valve body 1 through the gas supply device, causing valve core 2 to be compressed and moved downwards. Valve core 2 then exerts force on gripper 5, causing it to move and open outwards. At this time, spring 4 is compressed. After the gas supply device stops supplying gas, spring 4 returns to its original position due to its own properties. During this return process, spring 4 pushes valve core 2 back to its initial position, causing gripper 5 to close. This completes the operation.

[0031] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A pneumatic gripper for picking up materials, comprising a valve body (1), characterized in that, It also includes a valve core (2), an end cap (3), a spring (4), a claw (5), and a positioning pin (9). One end of the valve body (1) is threadedly connected to the end cap (3). The valve core (2) is disposed inside the valve body (1). The spring (4) is movably disposed inside the valve core (2). The two ends of the spring (4) are in contact with the valve core (2) and the valve body (1), respectively. The claw (5) is rotatably connected to one side of the valve body (1) through the positioning pin (9). One end of the claw (5) extends into the valve body (1) and contacts the valve core (2).

2. The pneumatic gripper according to claim 1, characterized in that, The valve core (2) is provided with multiple protrusions, and one end of the claw (5) extends into the space between two adjacent protrusions.

3. The pneumatic gripper according to claim 2, characterized in that, The outer diameter of the spring (4) is smaller than the internal space diameter of the valve body (1), and the inner diameter of the spring (4) is larger than the diameter of the end of the valve core (2).

4. A pneumatic gripper according to claim 3, characterized in that, Vent holes are provided on both sides of the valve body (1), and the vent holes of the valve body (1) are close to the end of the valve core (2) away from the spring (4).

5. A pneumatic gripper according to claim 4, characterized in that, The claw (5) is designed in an L-shape, and the valve core (2) drives the claw (5) to move by squeezing one end of the claw (5).

6. A pneumatic gripper according to claim 5, characterized in that, A headless screw (6) is threaded onto the end cap (3), one end of which passes through the end cap (3) and contacts the valve core (2).

7. A pneumatic gripper according to claim 6, characterized in that, The end cap (3) is provided with an O-ring (7) at the end facing the valve body (1).

8. A pneumatic gripper according to claim 7, characterized in that, A sealing ring (8) is provided at the end of the valve core (2) away from the spring (4).

9. A pneumatic gripper according to claim 8, characterized in that, The sealing ring (8) is circular and has a certain elasticity. After the device is ventilated, the sealing ring (8) is compressed by the gas and expands.

10. A pneumatic gripper according to claim 9, characterized in that, The valve body (1) is connected to a cover plate (11) on the side facing away from the claw (5) by a flat-head screw (10).

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